| Document Page Access Group User Role\n[document_page_approval](document_page_approval/) | 18.0.1.1.1 | | Document Page Approval\n[document_page_group](document_page_group/) | 18.0.1.0.0 | | Define access groups on documents\n[document_page_partner](document_page_partner/) | 18.0.1.0.0 | | Allows to link doucment pages to a partner\n[document_page_product](document_page_product/) | 18.0.1.0.0 | | This module links document pages to products\n[document_page_project](document_page_project/) | 18.0.1.0.0 | 
| This module links document pages to projects\n[document_page_project_task](document_page_project_task/) | 18.0.2.0.0 | 
| This module links document pages to project tasks\n[document_page_reference](document_page_reference/) | 18.0.2.1.0 | 
| Include references on document pages\n[document_page_tag](document_page_tag/) | 18.0.1.0.0 | | Allows you to assign tags or keywords to pages and search for them afterwards\n[document_url](document_url/) | 18.0.1.0.1 | | URL attachment\n\n[//]: # (end addons)\n\n\n\n## Licenses\n\nThis repository is licensed under [AGPL-3.0](LICENSE).\n\nHowever, each module can have a totally different license, as long as they adhere to Odoo Community Association (OCA)\npolicy. Consult each module's `__manifest__.py` file, which contains a `license` key\nthat explains its license.\n\n----\nOCA, or the [Odoo Community Association](http://odoo-community.org/), is a nonprofit\norganization whose mission is to support the collaborative development of Odoo features\nand promote its widespread use.\n"
},
{
"path": "attachment_preview/README.rst",
"content": ".. image:: https://odoo-community.org/readme-banner-image\n :target: https://odoo-community.org/get-involved?utm_source=readme\n :alt: Odoo Community Association\n\n===================\nPreview attachments\n===================\n\n.. \n !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n !! This file is generated by oca-gen-addon-readme !!\n !! changes will be overwritten. !!\n !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n !! source digest: sha256:e9abcd982f1b988dc4c79d2c451320fddb5fc1289f44e8b7c178c917b2bd4d1e\n !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n\n.. |badge1| image:: https://img.shields.io/badge/maturity-Beta-yellow.png\n :target: https://odoo-community.org/page/development-status\n :alt: Beta\n.. |badge2| image:: https://img.shields.io/badge/license-AGPL--3-blue.png\n :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html\n :alt: License: AGPL-3\n.. |badge3| image:: https://img.shields.io/badge/github-OCA%2Fknowledge-lightgray.png?logo=github\n :target: https://github.com/OCA/knowledge/tree/18.0/attachment_preview\n :alt: OCA/knowledge\n.. |badge4| image:: https://img.shields.io/badge/weblate-Translate%20me-F47D42.png\n :target: https://translation.odoo-community.org/projects/knowledge-18-0/knowledge-18-0-attachment_preview\n :alt: Translate me on Weblate\n.. |badge5| image:: https://img.shields.io/badge/runboat-Try%20me-875A7B.png\n :target: https://runboat.odoo-community.org/builds?repo=OCA/knowledge&target_branch=18.0\n :alt: Try me on Runboat\n\n|badge1| |badge2| |badge3| |badge4| |badge5|\n\nThis addon allows to preview attachments supported by\nhttp://viewerjs.org.\n\nCurrently, that's most Libreoffice files and PDFs.\n\n|Screenshot of split form view|\n\n.. |Screenshot of split form view| image:: https://raw.githubusercontent.com/attachment_preview/static/description/screenshot-split.png\n\n**Table of contents**\n\n.. contents::\n :local:\n\nInstallation\n============\n\nFor filetype recognition, you'll get the best results by installing\n``python-magic``:\n\nsudo apt-get install python-magic\n\nUsage\n=====\n\nThe module adds a little print preview icon right of download links for\nattachments or binary fields. When a preview is opened from the\nattachments menu it's shown next to the form view. From this screen you\ncan navigate through the attachments using the arrow buttons. Using the\npop-out button next to the navigational buttons you can open the preview\nin a separate window.\n\n|Screenshot navigator|\n\n.. |Screenshot navigator| image:: https://raw.githubusercontent.com/attachment_preview/static/description/screenshot-paginator.png\n\nBug Tracker\n===========\n\nBugs are tracked on `GitHub Issues \n\n\n\n![\"Odoo](\"https://odoo-community.org/readme-banner-image\")
\n\n
\n\n\n"
},
{
"path": "attachment_preview/static/lib/ViewerJS/compatibility.js",
"content": "/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\n/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* globals VBArray, PDFJS */\n\n'use strict';\n\n// Initializing PDFJS global object here, it case if we need to change/disable\n// some PDF.js features, e.g. range requests\nif (typeof PDFJS === 'undefined') {\n (typeof window !== 'undefined' ? window : this).PDFJS = {};\n}\n\n// Checking if the typed arrays are supported\n// Support: iOS<6.0 (subarray), IE<10, Android<4.0\n(function checkTypedArrayCompatibility() {\n if (typeof Uint8Array !== 'undefined') {\n // Support: iOS<6.0\n if (typeof Uint8Array.prototype.subarray === 'undefined') {\n Uint8Array.prototype.subarray = function subarray(start, end) {\n return new Uint8Array(this.slice(start, end));\n };\n Float32Array.prototype.subarray = function subarray(start, end) {\n return new Float32Array(this.slice(start, end));\n };\n }\n\n // Support: Android<4.1\n if (typeof Float64Array === 'undefined') {\n window.Float64Array = Float32Array;\n }\n return;\n }\n\n function subarray(start, end) {\n return new TypedArray(this.slice(start, end));\n }\n\n function setArrayOffset(array, offset) {\n if (arguments.length < 2) {\n offset = 0;\n }\n for (var i = 0, n = array.length; i < n; ++i, ++offset) {\n this[offset] = array[i] & 0xFF;\n }\n }\n\n function TypedArray(arg1) {\n var result, i, n;\n if (typeof arg1 === 'number') {\n result = [];\n for (i = 0; i < arg1; ++i) {\n result[i] = 0;\n }\n } else if ('slice' in arg1) {\n result = arg1.slice(0);\n } else {\n result = [];\n for (i = 0, n = arg1.length; i < n; ++i) {\n result[i] = arg1[i];\n }\n }\n\n result.subarray = subarray;\n result.buffer = result;\n result.byteLength = result.length;\n result.set = setArrayOffset;\n\n if (typeof arg1 === 'object' && arg1.buffer) {\n result.buffer = arg1.buffer;\n }\n return result;\n }\n\n window.Uint8Array = TypedArray;\n window.Int8Array = TypedArray;\n\n // we don't need support for set, byteLength for 32-bit array\n // so we can use the TypedArray as well\n window.Uint32Array = TypedArray;\n window.Int32Array = TypedArray;\n window.Uint16Array = TypedArray;\n window.Float32Array = TypedArray;\n window.Float64Array = TypedArray;\n})();\n\n// URL = URL || webkitURL\n// Support: Safari<7, Android 4.2+\n(function normalizeURLObject() {\n if (!window.URL) {\n window.URL = window.webkitURL;\n }\n})();\n\n// Object.defineProperty()?\n// Support: Android<4.0, Safari<5.1\n(function checkObjectDefinePropertyCompatibility() {\n if (typeof Object.defineProperty !== 'undefined') {\n var definePropertyPossible = true;\n try {\n // some browsers (e.g. safari) cannot use defineProperty() on DOM objects\n // and thus the native version is not sufficient\n Object.defineProperty(new Image(), 'id', { value: 'test' });\n // ... another test for android gb browser for non-DOM objects\n var Test = function Test() {};\n Test.prototype = { get id() { } };\n Object.defineProperty(new Test(), 'id',\n { value: '', configurable: true, enumerable: true, writable: false });\n } catch (e) {\n definePropertyPossible = false;\n }\n if (definePropertyPossible) {\n return;\n }\n }\n\n Object.defineProperty = function objectDefineProperty(obj, name, def) {\n delete obj[name];\n if ('get' in def) {\n obj.__defineGetter__(name, def['get']);\n }\n if ('set' in def) {\n obj.__defineSetter__(name, def['set']);\n }\n if ('value' in def) {\n obj.__defineSetter__(name, function objectDefinePropertySetter(value) {\n this.__defineGetter__(name, function objectDefinePropertyGetter() {\n return value;\n });\n return value;\n });\n obj[name] = def.value;\n }\n };\n})();\n\n\n// No XMLHttpRequest#response?\n// Support: IE<11, Android <4.0\n(function checkXMLHttpRequestResponseCompatibility() {\n var xhrPrototype = XMLHttpRequest.prototype;\n var xhr = new XMLHttpRequest();\n if (!('overrideMimeType' in xhr)) {\n // IE10 might have response, but not overrideMimeType\n // Support: IE10\n Object.defineProperty(xhrPrototype, 'overrideMimeType', {\n value: function xmlHttpRequestOverrideMimeType(mimeType) {}\n });\n }\n if ('responseType' in xhr) {\n return;\n }\n\n // The worker will be using XHR, so we can save time and disable worker.\n PDFJS.disableWorker = true;\n\n Object.defineProperty(xhrPrototype, 'responseType', {\n get: function xmlHttpRequestGetResponseType() {\n return this._responseType || 'text';\n },\n set: function xmlHttpRequestSetResponseType(value) {\n if (value === 'text' || value === 'arraybuffer') {\n this._responseType = value;\n if (value === 'arraybuffer' &&\n typeof this.overrideMimeType === 'function') {\n this.overrideMimeType('text/plain; charset=x-user-defined');\n }\n }\n }\n });\n\n // Support: IE9\n if (typeof VBArray !== 'undefined') {\n Object.defineProperty(xhrPrototype, 'response', {\n get: function xmlHttpRequestResponseGet() {\n if (this.responseType === 'arraybuffer') {\n return new Uint8Array(new VBArray(this.responseBody).toArray());\n } else {\n return this.responseText;\n }\n }\n });\n return;\n }\n\n Object.defineProperty(xhrPrototype, 'response', {\n get: function xmlHttpRequestResponseGet() {\n if (this.responseType !== 'arraybuffer') {\n return this.responseText;\n }\n var text = this.responseText;\n var i, n = text.length;\n var result = new Uint8Array(n);\n for (i = 0; i < n; ++i) {\n result[i] = text.charCodeAt(i) & 0xFF;\n }\n return result.buffer;\n }\n });\n})();\n\n// window.btoa (base64 encode function) ?\n// Support: IE<10\n(function checkWindowBtoaCompatibility() {\n if ('btoa' in window) {\n return;\n }\n\n var digits =\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\n window.btoa = function windowBtoa(chars) {\n var buffer = '';\n var i, n;\n for (i = 0, n = chars.length; i < n; i += 3) {\n var b1 = chars.charCodeAt(i) & 0xFF;\n var b2 = chars.charCodeAt(i + 1) & 0xFF;\n var b3 = chars.charCodeAt(i + 2) & 0xFF;\n var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);\n var d3 = i + 1 < n ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;\n var d4 = i + 2 < n ? (b3 & 0x3F) : 64;\n buffer += (digits.charAt(d1) + digits.charAt(d2) +\n digits.charAt(d3) + digits.charAt(d4));\n }\n return buffer;\n };\n})();\n\n// window.atob (base64 encode function)?\n// Support: IE<10\n(function checkWindowAtobCompatibility() {\n if ('atob' in window) {\n return;\n }\n\n // https://github.com/davidchambers/Base64.js\n var digits =\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n window.atob = function (input) {\n input = input.replace(/=+$/, '');\n if (input.length % 4 === 1) {\n throw new Error('bad atob input');\n }\n for (\n // initialize result and counters\n var bc = 0, bs, buffer, idx = 0, output = '';\n // get next character\n buffer = input.charAt(idx++);\n // character found in table?\n // initialize bit storage and add its ascii value\n ~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,\n // and if not first of each 4 characters,\n // convert the first 8 bits to one ascii character\n bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0\n ) {\n // try to find character in table (0-63, not found => -1)\n buffer = digits.indexOf(buffer);\n }\n return output;\n };\n})();\n\n// Function.prototype.bind?\n// Support: Android<4.0, iOS<6.0\n(function checkFunctionPrototypeBindCompatibility() {\n if (typeof Function.prototype.bind !== 'undefined') {\n return;\n }\n\n Function.prototype.bind = function functionPrototypeBind(obj) {\n var fn = this, headArgs = Array.prototype.slice.call(arguments, 1);\n var bound = function functionPrototypeBindBound() {\n var args = headArgs.concat(Array.prototype.slice.call(arguments));\n return fn.apply(obj, args);\n };\n return bound;\n };\n})();\n\n// HTMLElement dataset property\n// Support: IE<11, Safari<5.1, Android<4.0\n(function checkDatasetProperty() {\n var div = document.createElement('div');\n if ('dataset' in div) {\n return; // dataset property exists\n }\n\n Object.defineProperty(HTMLElement.prototype, 'dataset', {\n get: function() {\n if (this._dataset) {\n return this._dataset;\n }\n\n var dataset = {};\n for (var j = 0, jj = this.attributes.length; j < jj; j++) {\n var attribute = this.attributes[j];\n if (attribute.name.substring(0, 5) !== 'data-') {\n continue;\n }\n var key = attribute.name.substring(5).replace(/\\-([a-z])/g,\n function(all, ch) {\n return ch.toUpperCase();\n });\n dataset[key] = attribute.value;\n }\n\n Object.defineProperty(this, '_dataset', {\n value: dataset,\n writable: false,\n enumerable: false\n });\n return dataset;\n },\n enumerable: true\n });\n})();\n\n// HTMLElement classList property\n// Support: IE<10, Android<4.0, iOS<5.0\n(function checkClassListProperty() {\n var div = document.createElement('div');\n if ('classList' in div) {\n return; // classList property exists\n }\n\n function changeList(element, itemName, add, remove) {\n var s = element.className || '';\n var list = s.split(/\\s+/g);\n if (list[0] === '') {\n list.shift();\n }\n var index = list.indexOf(itemName);\n if (index < 0 && add) {\n list.push(itemName);\n }\n if (index >= 0 && remove) {\n list.splice(index, 1);\n }\n element.className = list.join(' ');\n return (index >= 0);\n }\n\n var classListPrototype = {\n add: function(name) {\n changeList(this.element, name, true, false);\n },\n contains: function(name) {\n return changeList(this.element, name, false, false);\n },\n remove: function(name) {\n changeList(this.element, name, false, true);\n },\n toggle: function(name) {\n changeList(this.element, name, true, true);\n }\n };\n\n Object.defineProperty(HTMLElement.prototype, 'classList', {\n get: function() {\n if (this._classList) {\n return this._classList;\n }\n\n var classList = Object.create(classListPrototype, {\n element: {\n value: this,\n writable: false,\n enumerable: true\n }\n });\n Object.defineProperty(this, '_classList', {\n value: classList,\n writable: false,\n enumerable: false\n });\n return classList;\n },\n enumerable: true\n });\n})();\n\n// Check console compatibility\n// In older IE versions the console object is not available\n// unless console is open.\n// Support: IE<10\n(function checkConsoleCompatibility() {\n if (!('console' in window)) {\n window.console = {\n log: function() {},\n error: function() {},\n warn: function() {}\n };\n } else if (!('bind' in console.log)) {\n // native functions in IE9 might not have bind\n console.log = (function(fn) {\n return function(msg) { return fn(msg); };\n })(console.log);\n console.error = (function(fn) {\n return function(msg) { return fn(msg); };\n })(console.error);\n console.warn = (function(fn) {\n return function(msg) { return fn(msg); };\n })(console.warn);\n }\n})();\n\n// Check onclick compatibility in Opera\n// Support: Opera<15\n(function checkOnClickCompatibility() {\n // workaround for reported Opera bug DSK-354448:\n // onclick fires on disabled buttons with opaque content\n function ignoreIfTargetDisabled(event) {\n if (isDisabled(event.target)) {\n event.stopPropagation();\n }\n }\n function isDisabled(node) {\n return node.disabled || (node.parentNode && isDisabled(node.parentNode));\n }\n if (navigator.userAgent.indexOf('Opera') !== -1) {\n // use browser detection since we cannot feature-check this bug\n document.addEventListener('click', ignoreIfTargetDisabled, true);\n }\n})();\n\n// Checks if possible to use URL.createObjectURL()\n// Support: IE\n(function checkOnBlobSupport() {\n // sometimes IE loosing the data created with createObjectURL(), see #3977\n if (navigator.userAgent.indexOf('Trident') >= 0) {\n PDFJS.disableCreateObjectURL = true;\n }\n})();\n\n// Checks if navigator.language is supported\n(function checkNavigatorLanguage() {\n if ('language' in navigator) {\n return;\n }\n PDFJS.locale = navigator.userLanguage || 'en-US';\n})();\n\n(function checkRangeRequests() {\n // Safari has issues with cached range requests see:\n // https://github.com/mozilla/pdf.js/issues/3260\n // Last tested with version 6.0.4.\n // Support: Safari 6.0+\n var isSafari = Object.prototype.toString.call(\n window.HTMLElement).indexOf('Constructor') > 0;\n\n // Older versions of Android (pre 3.0) has issues with range requests, see:\n // https://github.com/mozilla/pdf.js/issues/3381.\n // Make sure that we only match webkit-based Android browsers,\n // since Firefox/Fennec works as expected.\n // Support: Android<3.0\n var regex = /Android\\s[0-2][^\\d]/;\n var isOldAndroid = regex.test(navigator.userAgent);\n\n // Range requests are broken in Chrome 39 and 40, https://crbug.com/442318\n var isChromeWithRangeBug = /Chrome\\/(39|40)\\./.test(navigator.userAgent);\n\n if (isSafari || isOldAndroid || isChromeWithRangeBug) {\n PDFJS.disableRange = true;\n PDFJS.disableStream = true;\n }\n})();\n\n// Check if the browser supports manipulation of the history.\n// Support: IE<10, Android<4.2\n(function checkHistoryManipulation() {\n // Android 2.x has so buggy pushState support that it was removed in\n // Android 3.0 and restored as late as in Android 4.2.\n // Support: Android 2.x\n if (!history.pushState || navigator.userAgent.indexOf('Android 2.') >= 0) {\n PDFJS.disableHistory = true;\n }\n})();\n\n// Support: IE<11, Chrome<21, Android<4.4, Safari<6\n(function checkSetPresenceInImageData() {\n // IE < 11 will use window.CanvasPixelArray which lacks set function.\n if (window.CanvasPixelArray) {\n if (typeof window.CanvasPixelArray.prototype.set !== 'function') {\n window.CanvasPixelArray.prototype.set = function(arr) {\n for (var i = 0, ii = this.length; i < ii; i++) {\n this[i] = arr[i];\n }\n };\n }\n } else {\n // Old Chrome and Android use an inaccessible CanvasPixelArray prototype.\n // Because we cannot feature detect it, we rely on user agent parsing.\n var polyfill = false, versionMatch;\n if (navigator.userAgent.indexOf('Chrom') >= 0) {\n versionMatch = navigator.userAgent.match(/Chrom(e|ium)\\/([0-9]+)\\./);\n // Chrome < 21 lacks the set function.\n polyfill = versionMatch && parseInt(versionMatch[2]) < 21;\n } else if (navigator.userAgent.indexOf('Android') >= 0) {\n // Android < 4.4 lacks the set function.\n // Android >= 4.4 will contain Chrome in the user agent,\n // thus pass the Chrome check above and not reach this block.\n polyfill = /Android\\s[0-4][^\\d]/g.test(navigator.userAgent);\n } else if (navigator.userAgent.indexOf('Safari') >= 0) {\n versionMatch = navigator.userAgent.\n match(/Version\\/([0-9]+)\\.([0-9]+)\\.([0-9]+) Safari\\//);\n // Safari < 6 lacks the set function.\n polyfill = versionMatch && parseInt(versionMatch[1]) < 6;\n }\n\n if (polyfill) {\n var contextPrototype = window.CanvasRenderingContext2D.prototype;\n contextPrototype._createImageData = contextPrototype.createImageData;\n contextPrototype.createImageData = function(w, h) {\n var imageData = this._createImageData(w, h);\n imageData.data.set = function(arr) {\n for (var i = 0, ii = this.length; i < ii; i++) {\n this[i] = arr[i];\n }\n };\n return imageData;\n };\n }\n }\n})();\n\n// Support: IE<10, Android<4.0, iOS\n(function checkRequestAnimationFrame() {\n function fakeRequestAnimationFrame(callback) {\n window.setTimeout(callback, 20);\n }\n\n var isIOS = /(iPad|iPhone|iPod)/g.test(navigator.userAgent);\n if (isIOS) {\n // requestAnimationFrame on iOS is broken, replacing with fake one.\n window.requestAnimationFrame = fakeRequestAnimationFrame;\n return;\n }\n if ('requestAnimationFrame' in window) {\n return;\n }\n window.requestAnimationFrame =\n window.mozRequestAnimationFrame ||\n window.webkitRequestAnimationFrame ||\n fakeRequestAnimationFrame;\n})();\n\n(function checkCanvasSizeLimitation() {\n var isIOS = /(iPad|iPhone|iPod)/g.test(navigator.userAgent);\n var isAndroid = /Android/g.test(navigator.userAgent);\n if (isIOS || isAndroid) {\n // 5MP\n PDFJS.maxCanvasPixels = 5242880;\n }\n})();\n\n// Disable fullscreen support for certain problematic configurations.\n// Support: IE11+ (when embedded).\n(function checkFullscreenSupport() {\n var isEmbeddedIE = (navigator.userAgent.indexOf('Trident') >= 0 &&\n window.parent !== window);\n if (isEmbeddedIE) {\n PDFJS.disableFullscreen = true;\n }\n})();\n"
},
{
"path": "attachment_preview/static/lib/ViewerJS/example.local.css",
"content": "/* This is just a sample file with CSS rules. You should write your own @font-face declarations\n * to add support for your desired fonts.\n */\n\n@font-face {\n font-family: 'Novecentowide Book';\n src: url(\"/ViewerJS/fonts/Novecentowide-Bold-webfont.eot\");\n src: url(\"/ViewerJS/fonts/Novecentowide-Bold-webfont.eot?#iefix\") format(\"embedded-opentype\"),\n url(\"/ViewerJS/fonts/Novecentowide-Bold-webfont.woff\") format(\"woff\"),\n url(\"/fonts/Novecentowide-Bold-webfont.ttf\") format(\"truetype\"),\n url(\"/fonts/Novecentowide-Bold-webfont.svg#NovecentowideBookBold\") format(\"svg\");\n font-weight: normal;\n font-style: normal;\n}\n\n@font-face {\n font-family: 'exotica';\n src: url('/ViewerJS/fonts/Exotica-webfont.eot');\n src: url('/ViewerJS/fonts/Exotica-webfont.eot?#iefix') format('embedded-opentype'),\n url('/ViewerJS/fonts/Exotica-webfont.woff') format('woff'),\n url('/ViewerJS/fonts/Exotica-webfont.ttf') format('truetype'),\n url('/ViewerJS/fonts/Exotica-webfont.svg#exoticamedium') format('svg');\n font-weight: normal;\n font-style: normal;\n\n}\n\n"
},
{
"path": "attachment_preview/static/lib/ViewerJS/index.html",
"content": "\n\n \n \n\n\n\n \n
\nPreview attachments
\n\n![\"Beta\"](\"https://img.shields.io/badge/maturity-Beta-yellow.png\"){kind=icon}
![\"License:](\"https://img.shields.io/badge/license-AGPL--3-blue.png\"){kind=icon}
![\"OCA/knowledge\"](\"https://img.shields.io/badge/github-OCA%2Fknowledge-lightgray.png?logo=github\"){kind=icon}
![\"Translate](\"https://img.shields.io/badge/weblate-Translate%20me-F47D42.png\"){kind=icon}
![\"Try](\"https://img.shields.io/badge/runboat-Try%20me-875A7B.png\"){kind=icon}
This addon allows to preview attachments supported by\nhttp://viewerjs.org.
\nCurrently, that’s most Libreoffice files and PDFs.
\n![\"Screenshot](\"https://raw.githubusercontent.com/attachment_preview/static/description/screenshot-split.png\")
Table of contents
\n\n
\n- \n
- Installation \n
- Usage \n
- Bug Tracker \n
- Credits
- \n
- Authors \n
- Contributors \n
- Maintainers \n
\n
\n
\nInstallation
\nFor filetype recognition, you’ll get the best results by installing\npython-magic:
\nsudo apt-get install python-magic
\n\n
\nUsage
\nThe module adds a little print preview icon right of download links for\nattachments or binary fields. When a preview is opened from the\nattachments menu it’s shown next to the form view. From this screen you\ncan navigate through the attachments using the arrow buttons. Using the\npop-out button next to the navigational buttons you can open the preview\nin a separate window.
\n![\"Screenshot](\"https://raw.githubusercontent.com/attachment_preview/static/description/screenshot-paginator.png\")
\n
\nBug Tracker
\nBugs are tracked on GitHub Issues.\nIn case of trouble, please check there if your issue has already been reported.\nIf you spotted it first, help us to smash it by providing a detailed and welcomed\nfeedback.
\nDo not contact contributors directly about support or help with technical issues.
\n\n
\nCredits
\n\n
\nAuthors
\n- \n
- Therp BV \n
- Onestein \n
\n
\nContributors
\n- \n
- Holger Brunn <mail@hunki-enterprises.com> \n
- Dennis Sluijk <d.sluijk@onestein.nl> \n
\n![\"Odoo](\"https://odoo-community.org/logo.png\")
\n\n
\nMaintainers
\nThis module is maintained by the OCA.
\n\n\n\nOCA, or the Odoo Community Association, is a nonprofit organization whose\nmission is to support the collaborative development of Odoo features and\npromote its widespread use.
\nThis module is part of the OCA/knowledge project on GitHub.
\nYou are welcome to contribute. To learn how please visit https://odoo-community.org/page/Contribute.
\n\n
\n \n\n"
},
{
"path": "attachment_preview/static/lib/ViewerJS/pdf.js",
"content": "/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\n/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/*jshint globalstrict: false */\n/* globals PDFJS */\n\n// Initializing PDFJS global object (if still undefined)\nif (typeof PDFJS === 'undefined') {\n (typeof window !== 'undefined' ? window : this).PDFJS = {};\n}\n\nPDFJS.version = '1.1.114';\nPDFJS.build = '3fd44fd';\n\n(function pdfjsWrapper() {\n // Use strict in our context only - users might not want it\n 'use strict';\n\n/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\n/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* globals Cmd, ColorSpace, Dict, MozBlobBuilder, Name, PDFJS, Ref, URL,\n Promise */\n\n'use strict';\n\nvar globalScope = (typeof window === 'undefined') ? this : window;\n\nvar isWorker = (typeof window === 'undefined');\n\nvar FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];\n\nvar TextRenderingMode = {\n FILL: 0,\n STROKE: 1,\n FILL_STROKE: 2,\n INVISIBLE: 3,\n FILL_ADD_TO_PATH: 4,\n STROKE_ADD_TO_PATH: 5,\n FILL_STROKE_ADD_TO_PATH: 6,\n ADD_TO_PATH: 7,\n FILL_STROKE_MASK: 3,\n ADD_TO_PATH_FLAG: 4\n};\n\nvar ImageKind = {\n GRAYSCALE_1BPP: 1,\n RGB_24BPP: 2,\n RGBA_32BPP: 3\n};\n\nvar AnnotationType = {\n WIDGET: 1,\n TEXT: 2,\n LINK: 3\n};\n\nvar StreamType = {\n UNKNOWN: 0,\n FLATE: 1,\n LZW: 2,\n DCT: 3,\n JPX: 4,\n JBIG: 5,\n A85: 6,\n AHX: 7,\n CCF: 8,\n RL: 9\n};\n\nvar FontType = {\n UNKNOWN: 0,\n TYPE1: 1,\n TYPE1C: 2,\n CIDFONTTYPE0: 3,\n CIDFONTTYPE0C: 4,\n TRUETYPE: 5,\n CIDFONTTYPE2: 6,\n TYPE3: 7,\n OPENTYPE: 8,\n TYPE0: 9,\n MMTYPE1: 10\n};\n\n// The global PDFJS object exposes the API\n// In production, it will be declared outside a global wrapper\n// In development, it will be declared here\nif (!globalScope.PDFJS) {\n globalScope.PDFJS = {};\n}\n\nglobalScope.PDFJS.pdfBug = false;\n\nPDFJS.VERBOSITY_LEVELS = {\n errors: 0,\n warnings: 1,\n infos: 5\n};\n\n// All the possible operations for an operator list.\nvar OPS = PDFJS.OPS = {\n // Intentionally start from 1 so it is easy to spot bad operators that will be\n // 0's.\n dependency: 1,\n setLineWidth: 2,\n setLineCap: 3,\n setLineJoin: 4,\n setMiterLimit: 5,\n setDash: 6,\n setRenderingIntent: 7,\n setFlatness: 8,\n setGState: 9,\n save: 10,\n restore: 11,\n transform: 12,\n moveTo: 13,\n lineTo: 14,\n curveTo: 15,\n curveTo2: 16,\n curveTo3: 17,\n closePath: 18,\n rectangle: 19,\n stroke: 20,\n closeStroke: 21,\n fill: 22,\n eoFill: 23,\n fillStroke: 24,\n eoFillStroke: 25,\n closeFillStroke: 26,\n closeEOFillStroke: 27,\n endPath: 28,\n clip: 29,\n eoClip: 30,\n beginText: 31,\n endText: 32,\n setCharSpacing: 33,\n setWordSpacing: 34,\n setHScale: 35,\n setLeading: 36,\n setFont: 37,\n setTextRenderingMode: 38,\n setTextRise: 39,\n moveText: 40,\n setLeadingMoveText: 41,\n setTextMatrix: 42,\n nextLine: 43,\n showText: 44,\n showSpacedText: 45,\n nextLineShowText: 46,\n nextLineSetSpacingShowText: 47,\n setCharWidth: 48,\n setCharWidthAndBounds: 49,\n setStrokeColorSpace: 50,\n setFillColorSpace: 51,\n setStrokeColor: 52,\n setStrokeColorN: 53,\n setFillColor: 54,\n setFillColorN: 55,\n setStrokeGray: 56,\n setFillGray: 57,\n setStrokeRGBColor: 58,\n setFillRGBColor: 59,\n setStrokeCMYKColor: 60,\n setFillCMYKColor: 61,\n shadingFill: 62,\n beginInlineImage: 63,\n beginImageData: 64,\n endInlineImage: 65,\n paintXObject: 66,\n markPoint: 67,\n markPointProps: 68,\n beginMarkedContent: 69,\n beginMarkedContentProps: 70,\n endMarkedContent: 71,\n beginCompat: 72,\n endCompat: 73,\n paintFormXObjectBegin: 74,\n paintFormXObjectEnd: 75,\n beginGroup: 76,\n endGroup: 77,\n beginAnnotations: 78,\n endAnnotations: 79,\n beginAnnotation: 80,\n endAnnotation: 81,\n paintJpegXObject: 82,\n paintImageMaskXObject: 83,\n paintImageMaskXObjectGroup: 84,\n paintImageXObject: 85,\n paintInlineImageXObject: 86,\n paintInlineImageXObjectGroup: 87,\n paintImageXObjectRepeat: 88,\n paintImageMaskXObjectRepeat: 89,\n paintSolidColorImageMask: 90,\n constructPath: 91\n};\n\n// A notice for devs. These are good for things that are helpful to devs, such\n// as warning that Workers were disabled, which is important to devs but not\n// end users.\nfunction info(msg) {\n if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.infos) {\n console.log('Info: ' + msg);\n }\n}\n\n// Non-fatal warnings.\nfunction warn(msg) {\n if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.warnings) {\n console.log('Warning: ' + msg);\n }\n}\n\n// Fatal errors that should trigger the fallback UI and halt execution by\n// throwing an exception.\nfunction error(msg) {\n if (PDFJS.verbosity >= PDFJS.VERBOSITY_LEVELS.errors) {\n console.log('Error: ' + msg);\n console.log(backtrace());\n }\n UnsupportedManager.notify(UNSUPPORTED_FEATURES.unknown);\n throw new Error(msg);\n}\n\nfunction backtrace() {\n try {\n throw new Error();\n } catch (e) {\n return e.stack ? e.stack.split('\\n').slice(2).join('\\n') : '';\n }\n}\n\nfunction assert(cond, msg) {\n if (!cond) {\n error(msg);\n }\n}\n\nvar UNSUPPORTED_FEATURES = PDFJS.UNSUPPORTED_FEATURES = {\n unknown: 'unknown',\n forms: 'forms',\n javaScript: 'javaScript',\n smask: 'smask',\n shadingPattern: 'shadingPattern',\n font: 'font'\n};\n\nvar UnsupportedManager = PDFJS.UnsupportedManager =\n (function UnsupportedManagerClosure() {\n var listeners = [];\n return {\n listen: function (cb) {\n listeners.push(cb);\n },\n notify: function (featureId) {\n warn('Unsupported feature \"' + featureId + '\"');\n for (var i = 0, ii = listeners.length; i < ii; i++) {\n listeners[i](featureId);\n }\n }\n };\n})();\n\n// Combines two URLs. The baseUrl shall be absolute URL. If the url is an\n// absolute URL, it will be returned as is.\nfunction combineUrl(baseUrl, url) {\n if (!url) {\n return baseUrl;\n }\n if (/^[a-z][a-z0-9+\\-.]*:/i.test(url)) {\n return url;\n }\n var i;\n if (url.charAt(0) === '/') {\n // absolute path\n i = baseUrl.indexOf('://');\n if (url.charAt(1) === '/') {\n ++i;\n } else {\n i = baseUrl.indexOf('/', i + 3);\n }\n return baseUrl.substring(0, i) + url;\n } else {\n // relative path\n var pathLength = baseUrl.length;\n i = baseUrl.lastIndexOf('#');\n pathLength = i >= 0 ? i : pathLength;\n i = baseUrl.lastIndexOf('?', pathLength);\n pathLength = i >= 0 ? i : pathLength;\n var prefixLength = baseUrl.lastIndexOf('/', pathLength);\n return baseUrl.substring(0, prefixLength + 1) + url;\n }\n}\n\n// Validates if URL is safe and allowed, e.g. to avoid XSS.\nfunction isValidUrl(url, allowRelative) {\n if (!url) {\n return false;\n }\n // RFC 3986 (http://tools.ietf.org/html/rfc3986#section-3.1)\n // scheme = ALPHA *( ALPHA / DIGIT / \"+\" / \"-\" / \".\" )\n var protocol = /^[a-z][a-z0-9+\\-.]*(?=:)/i.exec(url);\n if (!protocol) {\n return allowRelative;\n }\n protocol = protocol[0].toLowerCase();\n switch (protocol) {\n case 'http':\n case 'https':\n case 'ftp':\n case 'mailto':\n case 'tel':\n return true;\n default:\n return false;\n }\n}\nPDFJS.isValidUrl = isValidUrl;\n\nfunction shadow(obj, prop, value) {\n Object.defineProperty(obj, prop, { value: value,\n enumerable: true,\n configurable: true,\n writable: false });\n return value;\n}\nPDFJS.shadow = shadow;\n\nvar PasswordResponses = PDFJS.PasswordResponses = {\n NEED_PASSWORD: 1,\n INCORRECT_PASSWORD: 2\n};\n\nvar PasswordException = (function PasswordExceptionClosure() {\n function PasswordException(msg, code) {\n this.name = 'PasswordException';\n this.message = msg;\n this.code = code;\n }\n\n PasswordException.prototype = new Error();\n PasswordException.constructor = PasswordException;\n\n return PasswordException;\n})();\nPDFJS.PasswordException = PasswordException;\n\nvar UnknownErrorException = (function UnknownErrorExceptionClosure() {\n function UnknownErrorException(msg, details) {\n this.name = 'UnknownErrorException';\n this.message = msg;\n this.details = details;\n }\n\n UnknownErrorException.prototype = new Error();\n UnknownErrorException.constructor = UnknownErrorException;\n\n return UnknownErrorException;\n})();\nPDFJS.UnknownErrorException = UnknownErrorException;\n\nvar InvalidPDFException = (function InvalidPDFExceptionClosure() {\n function InvalidPDFException(msg) {\n this.name = 'InvalidPDFException';\n this.message = msg;\n }\n\n InvalidPDFException.prototype = new Error();\n InvalidPDFException.constructor = InvalidPDFException;\n\n return InvalidPDFException;\n})();\nPDFJS.InvalidPDFException = InvalidPDFException;\n\nvar MissingPDFException = (function MissingPDFExceptionClosure() {\n function MissingPDFException(msg) {\n this.name = 'MissingPDFException';\n this.message = msg;\n }\n\n MissingPDFException.prototype = new Error();\n MissingPDFException.constructor = MissingPDFException;\n\n return MissingPDFException;\n})();\nPDFJS.MissingPDFException = MissingPDFException;\n\nvar UnexpectedResponseException =\n (function UnexpectedResponseExceptionClosure() {\n function UnexpectedResponseException(msg, status) {\n this.name = 'UnexpectedResponseException';\n this.message = msg;\n this.status = status;\n }\n\n UnexpectedResponseException.prototype = new Error();\n UnexpectedResponseException.constructor = UnexpectedResponseException;\n\n return UnexpectedResponseException;\n})();\nPDFJS.UnexpectedResponseException = UnexpectedResponseException;\n\nvar NotImplementedException = (function NotImplementedExceptionClosure() {\n function NotImplementedException(msg) {\n this.message = msg;\n }\n\n NotImplementedException.prototype = new Error();\n NotImplementedException.prototype.name = 'NotImplementedException';\n NotImplementedException.constructor = NotImplementedException;\n\n return NotImplementedException;\n})();\n\nvar MissingDataException = (function MissingDataExceptionClosure() {\n function MissingDataException(begin, end) {\n this.begin = begin;\n this.end = end;\n this.message = 'Missing data [' + begin + ', ' + end + ')';\n }\n\n MissingDataException.prototype = new Error();\n MissingDataException.prototype.name = 'MissingDataException';\n MissingDataException.constructor = MissingDataException;\n\n return MissingDataException;\n})();\n\nvar XRefParseException = (function XRefParseExceptionClosure() {\n function XRefParseException(msg) {\n this.message = msg;\n }\n\n XRefParseException.prototype = new Error();\n XRefParseException.prototype.name = 'XRefParseException';\n XRefParseException.constructor = XRefParseException;\n\n return XRefParseException;\n})();\n\n\nfunction bytesToString(bytes) {\n assert(bytes !== null && typeof bytes === 'object' &&\n bytes.length !== undefined, 'Invalid argument for bytesToString');\n var length = bytes.length;\n var MAX_ARGUMENT_COUNT = 8192;\n if (length < MAX_ARGUMENT_COUNT) {\n return String.fromCharCode.apply(null, bytes);\n }\n var strBuf = [];\n for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {\n var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);\n var chunk = bytes.subarray(i, chunkEnd);\n strBuf.push(String.fromCharCode.apply(null, chunk));\n }\n return strBuf.join('');\n}\n\nfunction stringToBytes(str) {\n assert(typeof str === 'string', 'Invalid argument for stringToBytes');\n var length = str.length;\n var bytes = new Uint8Array(length);\n for (var i = 0; i < length; ++i) {\n bytes[i] = str.charCodeAt(i) & 0xFF;\n }\n return bytes;\n}\n\nfunction string32(value) {\n return String.fromCharCode((value >> 24) & 0xff, (value >> 16) & 0xff,\n (value >> 8) & 0xff, value & 0xff);\n}\n\nfunction log2(x) {\n var n = 1, i = 0;\n while (x > n) {\n n <<= 1;\n i++;\n }\n return i;\n}\n\nfunction readInt8(data, start) {\n return (data[start] << 24) >> 24;\n}\n\nfunction readUint16(data, offset) {\n return (data[offset] << 8) | data[offset + 1];\n}\n\nfunction readUint32(data, offset) {\n return ((data[offset] << 24) | (data[offset + 1] << 16) |\n (data[offset + 2] << 8) | data[offset + 3]) >>> 0;\n}\n\n// Lazy test the endianness of the platform\n// NOTE: This will be 'true' for simulated TypedArrays\nfunction isLittleEndian() {\n var buffer8 = new Uint8Array(2);\n buffer8[0] = 1;\n var buffer16 = new Uint16Array(buffer8.buffer);\n return (buffer16[0] === 1);\n}\n\nObject.defineProperty(PDFJS, 'isLittleEndian', {\n configurable: true,\n get: function PDFJS_isLittleEndian() {\n return shadow(PDFJS, 'isLittleEndian', isLittleEndian());\n }\n});\n\n//#if !(FIREFOX || MOZCENTRAL || B2G || CHROME)\n//// Lazy test if the userAgant support CanvasTypedArrays\nfunction hasCanvasTypedArrays() {\n var canvas = document.createElement('canvas');\n canvas.width = canvas.height = 1;\n var ctx = canvas.getContext('2d');\n var imageData = ctx.createImageData(1, 1);\n return (typeof imageData.data.buffer !== 'undefined');\n}\n\nObject.defineProperty(PDFJS, 'hasCanvasTypedArrays', {\n configurable: true,\n get: function PDFJS_hasCanvasTypedArrays() {\n return shadow(PDFJS, 'hasCanvasTypedArrays', hasCanvasTypedArrays());\n }\n});\n\nvar Uint32ArrayView = (function Uint32ArrayViewClosure() {\n\n function Uint32ArrayView(buffer, length) {\n this.buffer = buffer;\n this.byteLength = buffer.length;\n this.length = length === undefined ? (this.byteLength >> 2) : length;\n ensureUint32ArrayViewProps(this.length);\n }\n Uint32ArrayView.prototype = Object.create(null);\n\n var uint32ArrayViewSetters = 0;\n function createUint32ArrayProp(index) {\n return {\n get: function () {\n var buffer = this.buffer, offset = index << 2;\n return (buffer[offset] | (buffer[offset + 1] << 8) |\n (buffer[offset + 2] << 16) | (buffer[offset + 3] << 24)) >>> 0;\n },\n set: function (value) {\n var buffer = this.buffer, offset = index << 2;\n buffer[offset] = value & 255;\n buffer[offset + 1] = (value >> 8) & 255;\n buffer[offset + 2] = (value >> 16) & 255;\n buffer[offset + 3] = (value >>> 24) & 255;\n }\n };\n }\n\n function ensureUint32ArrayViewProps(length) {\n while (uint32ArrayViewSetters < length) {\n Object.defineProperty(Uint32ArrayView.prototype,\n uint32ArrayViewSetters,\n createUint32ArrayProp(uint32ArrayViewSetters));\n uint32ArrayViewSetters++;\n }\n }\n\n return Uint32ArrayView;\n})();\n//#else\n//PDFJS.hasCanvasTypedArrays = true;\n//#endif\n\nvar IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];\n\nvar Util = PDFJS.Util = (function UtilClosure() {\n function Util() {}\n\n var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];\n\n // makeCssRgb() can be called thousands of times. Using |rgbBuf| avoids\n // creating many intermediate strings.\n Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {\n rgbBuf[1] = r;\n rgbBuf[3] = g;\n rgbBuf[5] = b;\n return rgbBuf.join('');\n };\n\n // Concatenates two transformation matrices together and returns the result.\n Util.transform = function Util_transform(m1, m2) {\n return [\n m1[0] * m2[0] + m1[2] * m2[1],\n m1[1] * m2[0] + m1[3] * m2[1],\n m1[0] * m2[2] + m1[2] * m2[3],\n m1[1] * m2[2] + m1[3] * m2[3],\n m1[0] * m2[4] + m1[2] * m2[5] + m1[4],\n m1[1] * m2[4] + m1[3] * m2[5] + m1[5]\n ];\n };\n\n // For 2d affine transforms\n Util.applyTransform = function Util_applyTransform(p, m) {\n var xt = p[0] * m[0] + p[1] * m[2] + m[4];\n var yt = p[0] * m[1] + p[1] * m[3] + m[5];\n return [xt, yt];\n };\n\n Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {\n var d = m[0] * m[3] - m[1] * m[2];\n var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;\n var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;\n return [xt, yt];\n };\n\n // Applies the transform to the rectangle and finds the minimum axially\n // aligned bounding box.\n Util.getAxialAlignedBoundingBox =\n function Util_getAxialAlignedBoundingBox(r, m) {\n\n var p1 = Util.applyTransform(r, m);\n var p2 = Util.applyTransform(r.slice(2, 4), m);\n var p3 = Util.applyTransform([r[0], r[3]], m);\n var p4 = Util.applyTransform([r[2], r[1]], m);\n return [\n Math.min(p1[0], p2[0], p3[0], p4[0]),\n Math.min(p1[1], p2[1], p3[1], p4[1]),\n Math.max(p1[0], p2[0], p3[0], p4[0]),\n Math.max(p1[1], p2[1], p3[1], p4[1])\n ];\n };\n\n Util.inverseTransform = function Util_inverseTransform(m) {\n var d = m[0] * m[3] - m[1] * m[2];\n return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d,\n (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];\n };\n\n // Apply a generic 3d matrix M on a 3-vector v:\n // | a b c | | X |\n // | d e f | x | Y |\n // | g h i | | Z |\n // M is assumed to be serialized as [a,b,c,d,e,f,g,h,i],\n // with v as [X,Y,Z]\n Util.apply3dTransform = function Util_apply3dTransform(m, v) {\n return [\n m[0] * v[0] + m[1] * v[1] + m[2] * v[2],\n m[3] * v[0] + m[4] * v[1] + m[5] * v[2],\n m[6] * v[0] + m[7] * v[1] + m[8] * v[2]\n ];\n };\n\n // This calculation uses Singular Value Decomposition.\n // The SVD can be represented with formula A = USV. We are interested in the\n // matrix S here because it represents the scale values.\n Util.singularValueDecompose2dScale =\n function Util_singularValueDecompose2dScale(m) {\n\n var transpose = [m[0], m[2], m[1], m[3]];\n\n // Multiply matrix m with its transpose.\n var a = m[0] * transpose[0] + m[1] * transpose[2];\n var b = m[0] * transpose[1] + m[1] * transpose[3];\n var c = m[2] * transpose[0] + m[3] * transpose[2];\n var d = m[2] * transpose[1] + m[3] * transpose[3];\n\n // Solve the second degree polynomial to get roots.\n var first = (a + d) / 2;\n var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;\n var sx = first + second || 1;\n var sy = first - second || 1;\n\n // Scale values are the square roots of the eigenvalues.\n return [Math.sqrt(sx), Math.sqrt(sy)];\n };\n\n // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)\n // For coordinate systems whose origin lies in the bottom-left, this\n // means normalization to (BL,TR) ordering. For systems with origin in the\n // top-left, this means (TL,BR) ordering.\n Util.normalizeRect = function Util_normalizeRect(rect) {\n var r = rect.slice(0); // clone rect\n if (rect[0] > rect[2]) {\n r[0] = rect[2];\n r[2] = rect[0];\n }\n if (rect[1] > rect[3]) {\n r[1] = rect[3];\n r[3] = rect[1];\n }\n return r;\n };\n\n // Returns a rectangle [x1, y1, x2, y2] corresponding to the\n // intersection of rect1 and rect2. If no intersection, returns 'false'\n // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]\n Util.intersect = function Util_intersect(rect1, rect2) {\n function compare(a, b) {\n return a - b;\n }\n\n // Order points along the axes\n var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),\n orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),\n result = [];\n\n rect1 = Util.normalizeRect(rect1);\n rect2 = Util.normalizeRect(rect2);\n\n // X: first and second points belong to different rectangles?\n if ((orderedX[0] === rect1[0] && orderedX[1] === rect2[0]) ||\n (orderedX[0] === rect2[0] && orderedX[1] === rect1[0])) {\n // Intersection must be between second and third points\n result[0] = orderedX[1];\n result[2] = orderedX[2];\n } else {\n return false;\n }\n\n // Y: first and second points belong to different rectangles?\n if ((orderedY[0] === rect1[1] && orderedY[1] === rect2[1]) ||\n (orderedY[0] === rect2[1] && orderedY[1] === rect1[1])) {\n // Intersection must be between second and third points\n result[1] = orderedY[1];\n result[3] = orderedY[2];\n } else {\n return false;\n }\n\n return result;\n };\n\n Util.sign = function Util_sign(num) {\n return num < 0 ? -1 : 1;\n };\n\n Util.appendToArray = function Util_appendToArray(arr1, arr2) {\n Array.prototype.push.apply(arr1, arr2);\n };\n\n Util.prependToArray = function Util_prependToArray(arr1, arr2) {\n Array.prototype.unshift.apply(arr1, arr2);\n };\n\n Util.extendObj = function extendObj(obj1, obj2) {\n for (var key in obj2) {\n obj1[key] = obj2[key];\n }\n };\n\n Util.getInheritableProperty = function Util_getInheritableProperty(dict,\n name) {\n while (dict && !dict.has(name)) {\n dict = dict.get('Parent');\n }\n if (!dict) {\n return null;\n }\n return dict.get(name);\n };\n\n Util.inherit = function Util_inherit(sub, base, prototype) {\n sub.prototype = Object.create(base.prototype);\n sub.prototype.constructor = sub;\n for (var prop in prototype) {\n sub.prototype[prop] = prototype[prop];\n }\n };\n\n Util.loadScript = function Util_loadScript(src, callback) {\n var script = document.createElement('script');\n var loaded = false;\n script.setAttribute('src', src);\n if (callback) {\n script.onload = function() {\n if (!loaded) {\n callback();\n }\n loaded = true;\n };\n }\n document.getElementsByTagName('head')[0].appendChild(script);\n };\n\n return Util;\n})();\n\n/**\n * PDF page viewport created based on scale, rotation and offset.\n * @class\n * @alias PDFJS.PageViewport\n */\nvar PageViewport = PDFJS.PageViewport = (function PageViewportClosure() {\n /**\n * @constructor\n * @private\n * @param viewBox {Array} xMin, yMin, xMax and yMax coordinates.\n * @param scale {number} scale of the viewport.\n * @param rotation {number} rotations of the viewport in degrees.\n * @param offsetX {number} offset X\n * @param offsetY {number} offset Y\n * @param dontFlip {boolean} if true, axis Y will not be flipped.\n */\n function PageViewport(viewBox, scale, rotation, offsetX, offsetY, dontFlip) {\n this.viewBox = viewBox;\n this.scale = scale;\n this.rotation = rotation;\n this.offsetX = offsetX;\n this.offsetY = offsetY;\n\n // creating transform to convert pdf coordinate system to the normal\n // canvas like coordinates taking in account scale and rotation\n var centerX = (viewBox[2] + viewBox[0]) / 2;\n var centerY = (viewBox[3] + viewBox[1]) / 2;\n var rotateA, rotateB, rotateC, rotateD;\n rotation = rotation % 360;\n rotation = rotation < 0 ? rotation + 360 : rotation;\n switch (rotation) {\n case 180:\n rotateA = -1; rotateB = 0; rotateC = 0; rotateD = 1;\n break;\n case 90:\n rotateA = 0; rotateB = 1; rotateC = 1; rotateD = 0;\n break;\n case 270:\n rotateA = 0; rotateB = -1; rotateC = -1; rotateD = 0;\n break;\n //case 0:\n default:\n rotateA = 1; rotateB = 0; rotateC = 0; rotateD = -1;\n break;\n }\n\n if (dontFlip) {\n rotateC = -rotateC; rotateD = -rotateD;\n }\n\n var offsetCanvasX, offsetCanvasY;\n var width, height;\n if (rotateA === 0) {\n offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;\n offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;\n width = Math.abs(viewBox[3] - viewBox[1]) * scale;\n height = Math.abs(viewBox[2] - viewBox[0]) * scale;\n } else {\n offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;\n offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;\n width = Math.abs(viewBox[2] - viewBox[0]) * scale;\n height = Math.abs(viewBox[3] - viewBox[1]) * scale;\n }\n // creating transform for the following operations:\n // translate(-centerX, -centerY), rotate and flip vertically,\n // scale, and translate(offsetCanvasX, offsetCanvasY)\n this.transform = [\n rotateA * scale,\n rotateB * scale,\n rotateC * scale,\n rotateD * scale,\n offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY,\n offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY\n ];\n\n this.width = width;\n this.height = height;\n this.fontScale = scale;\n }\n PageViewport.prototype = /** @lends PDFJS.PageViewport.prototype */ {\n /**\n * Clones viewport with additional properties.\n * @param args {Object} (optional) If specified, may contain the 'scale' or\n * 'rotation' properties to override the corresponding properties in\n * the cloned viewport.\n * @returns {PDFJS.PageViewport} Cloned viewport.\n */\n clone: function PageViewPort_clone(args) {\n args = args || {};\n var scale = 'scale' in args ? args.scale : this.scale;\n var rotation = 'rotation' in args ? args.rotation : this.rotation;\n return new PageViewport(this.viewBox.slice(), scale, rotation,\n this.offsetX, this.offsetY, args.dontFlip);\n },\n /**\n * Converts PDF point to the viewport coordinates. For examples, useful for\n * converting PDF location into canvas pixel coordinates.\n * @param x {number} X coordinate.\n * @param y {number} Y coordinate.\n * @returns {Object} Object that contains 'x' and 'y' properties of the\n * point in the viewport coordinate space.\n * @see {@link convertToPdfPoint}\n * @see {@link convertToViewportRectangle}\n */\n convertToViewportPoint: function PageViewport_convertToViewportPoint(x, y) {\n return Util.applyTransform([x, y], this.transform);\n },\n /**\n * Converts PDF rectangle to the viewport coordinates.\n * @param rect {Array} xMin, yMin, xMax and yMax coordinates.\n * @returns {Array} Contains corresponding coordinates of the rectangle\n * in the viewport coordinate space.\n * @see {@link convertToViewportPoint}\n */\n convertToViewportRectangle:\n function PageViewport_convertToViewportRectangle(rect) {\n var tl = Util.applyTransform([rect[0], rect[1]], this.transform);\n var br = Util.applyTransform([rect[2], rect[3]], this.transform);\n return [tl[0], tl[1], br[0], br[1]];\n },\n /**\n * Converts viewport coordinates to the PDF location. For examples, useful\n * for converting canvas pixel location into PDF one.\n * @param x {number} X coordinate.\n * @param y {number} Y coordinate.\n * @returns {Object} Object that contains 'x' and 'y' properties of the\n * point in the PDF coordinate space.\n * @see {@link convertToViewportPoint}\n */\n convertToPdfPoint: function PageViewport_convertToPdfPoint(x, y) {\n return Util.applyInverseTransform([x, y], this.transform);\n }\n };\n return PageViewport;\n})();\n\nvar PDFStringTranslateTable = [\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014,\n 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C,\n 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160,\n 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC\n];\n\nfunction stringToPDFString(str) {\n var i, n = str.length, strBuf = [];\n if (str[0] === '\\xFE' && str[1] === '\\xFF') {\n // UTF16BE BOM\n for (i = 2; i < n; i += 2) {\n strBuf.push(String.fromCharCode(\n (str.charCodeAt(i) << 8) | str.charCodeAt(i + 1)));\n }\n } else {\n for (i = 0; i < n; ++i) {\n var code = PDFStringTranslateTable[str.charCodeAt(i)];\n strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));\n }\n }\n return strBuf.join('');\n}\n\nfunction stringToUTF8String(str) {\n return decodeURIComponent(escape(str));\n}\n\nfunction isEmptyObj(obj) {\n for (var key in obj) {\n return false;\n }\n return true;\n}\n\nfunction isBool(v) {\n return typeof v === 'boolean';\n}\n\nfunction isInt(v) {\n return typeof v === 'number' && ((v | 0) === v);\n}\n\nfunction isNum(v) {\n return typeof v === 'number';\n}\n\nfunction isString(v) {\n return typeof v === 'string';\n}\n\nfunction isName(v) {\n return v instanceof Name;\n}\n\nfunction isCmd(v, cmd) {\n return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);\n}\n\nfunction isDict(v, type) {\n if (!(v instanceof Dict)) {\n return false;\n }\n if (!type) {\n return true;\n }\n var dictType = v.get('Type');\n return isName(dictType) && dictType.name === type;\n}\n\nfunction isArray(v) {\n return v instanceof Array;\n}\n\nfunction isStream(v) {\n return typeof v === 'object' && v !== null && v.getBytes !== undefined;\n}\n\nfunction isArrayBuffer(v) {\n return typeof v === 'object' && v !== null && v.byteLength !== undefined;\n}\n\nfunction isRef(v) {\n return v instanceof Ref;\n}\n\n/**\n * Promise Capability object.\n *\n * @typedef {Object} PromiseCapability\n * @property {Promise} promise - A promise object.\n * @property {function} resolve - Fullfills the promise.\n * @property {function} reject - Rejects the promise.\n */\n\n/**\n * Creates a promise capability object.\n * @alias PDFJS.createPromiseCapability\n *\n * @return {PromiseCapability} A capability object contains:\n * - a Promise, resolve and reject methods.\n */\nfunction createPromiseCapability() {\n var capability = {};\n capability.promise = new Promise(function (resolve, reject) {\n capability.resolve = resolve;\n capability.reject = reject;\n });\n return capability;\n}\n\nPDFJS.createPromiseCapability = createPromiseCapability;\n\n/**\n * Polyfill for Promises:\n * The following promise implementation tries to generally implement the\n * Promise/A+ spec. Some notable differences from other promise libaries are:\n * - There currently isn't a seperate deferred and promise object.\n * - Unhandled rejections eventually show an error if they aren't handled.\n *\n * Based off of the work in:\n * https://bugzilla.mozilla.org/show_bug.cgi?id=810490\n */\n(function PromiseClosure() {\n if (globalScope.Promise) {\n // Promises existing in the DOM/Worker, checking presence of all/resolve\n if (typeof globalScope.Promise.all !== 'function') {\n globalScope.Promise.all = function (iterable) {\n var count = 0, results = [], resolve, reject;\n var promise = new globalScope.Promise(function (resolve_, reject_) {\n resolve = resolve_;\n reject = reject_;\n });\n iterable.forEach(function (p, i) {\n count++;\n p.then(function (result) {\n results[i] = result;\n count--;\n if (count === 0) {\n resolve(results);\n }\n }, reject);\n });\n if (count === 0) {\n resolve(results);\n }\n return promise;\n };\n }\n if (typeof globalScope.Promise.resolve !== 'function') {\n globalScope.Promise.resolve = function (value) {\n return new globalScope.Promise(function (resolve) { resolve(value); });\n };\n }\n if (typeof globalScope.Promise.reject !== 'function') {\n globalScope.Promise.reject = function (reason) {\n return new globalScope.Promise(function (resolve, reject) {\n reject(reason);\n });\n };\n }\n if (typeof globalScope.Promise.prototype.catch !== 'function') {\n globalScope.Promise.prototype.catch = function (onReject) {\n return globalScope.Promise.prototype.then(undefined, onReject);\n };\n }\n return;\n }\n//#if !MOZCENTRAL\n var STATUS_PENDING = 0;\n var STATUS_RESOLVED = 1;\n var STATUS_REJECTED = 2;\n\n // In an attempt to avoid silent exceptions, unhandled rejections are\n // tracked and if they aren't handled in a certain amount of time an\n // error is logged.\n var REJECTION_TIMEOUT = 500;\n\n var HandlerManager = {\n handlers: [],\n running: false,\n unhandledRejections: [],\n pendingRejectionCheck: false,\n\n scheduleHandlers: function scheduleHandlers(promise) {\n if (promise._status === STATUS_PENDING) {\n return;\n }\n\n this.handlers = this.handlers.concat(promise._handlers);\n promise._handlers = [];\n\n if (this.running) {\n return;\n }\n this.running = true;\n\n setTimeout(this.runHandlers.bind(this), 0);\n },\n\n runHandlers: function runHandlers() {\n var RUN_TIMEOUT = 1; // ms\n var timeoutAt = Date.now() + RUN_TIMEOUT;\n while (this.handlers.length > 0) {\n var handler = this.handlers.shift();\n\n var nextStatus = handler.thisPromise._status;\n var nextValue = handler.thisPromise._value;\n\n try {\n if (nextStatus === STATUS_RESOLVED) {\n if (typeof handler.onResolve === 'function') {\n nextValue = handler.onResolve(nextValue);\n }\n } else if (typeof handler.onReject === 'function') {\n nextValue = handler.onReject(nextValue);\n nextStatus = STATUS_RESOLVED;\n\n if (handler.thisPromise._unhandledRejection) {\n this.removeUnhandeledRejection(handler.thisPromise);\n }\n }\n } catch (ex) {\n nextStatus = STATUS_REJECTED;\n nextValue = ex;\n }\n\n handler.nextPromise._updateStatus(nextStatus, nextValue);\n if (Date.now() >= timeoutAt) {\n break;\n }\n }\n\n if (this.handlers.length > 0) {\n setTimeout(this.runHandlers.bind(this), 0);\n return;\n }\n\n this.running = false;\n },\n\n addUnhandledRejection: function addUnhandledRejection(promise) {\n this.unhandledRejections.push({\n promise: promise,\n time: Date.now()\n });\n this.scheduleRejectionCheck();\n },\n\n removeUnhandeledRejection: function removeUnhandeledRejection(promise) {\n promise._unhandledRejection = false;\n for (var i = 0; i < this.unhandledRejections.length; i++) {\n if (this.unhandledRejections[i].promise === promise) {\n this.unhandledRejections.splice(i);\n i--;\n }\n }\n },\n\n scheduleRejectionCheck: function scheduleRejectionCheck() {\n if (this.pendingRejectionCheck) {\n return;\n }\n this.pendingRejectionCheck = true;\n setTimeout(function rejectionCheck() {\n this.pendingRejectionCheck = false;\n var now = Date.now();\n for (var i = 0; i < this.unhandledRejections.length; i++) {\n if (now - this.unhandledRejections[i].time > REJECTION_TIMEOUT) {\n var unhandled = this.unhandledRejections[i].promise._value;\n var msg = 'Unhandled rejection: ' + unhandled;\n if (unhandled.stack) {\n msg += '\\n' + unhandled.stack;\n }\n warn(msg);\n this.unhandledRejections.splice(i);\n i--;\n }\n }\n if (this.unhandledRejections.length) {\n this.scheduleRejectionCheck();\n }\n }.bind(this), REJECTION_TIMEOUT);\n }\n };\n\n function Promise(resolver) {\n this._status = STATUS_PENDING;\n this._handlers = [];\n try {\n resolver.call(this, this._resolve.bind(this), this._reject.bind(this));\n } catch (e) {\n this._reject(e);\n }\n }\n /**\n * Builds a promise that is resolved when all the passed in promises are\n * resolved.\n * @param {array} array of data and/or promises to wait for.\n * @return {Promise} New dependant promise.\n */\n Promise.all = function Promise_all(promises) {\n var resolveAll, rejectAll;\n var deferred = new Promise(function (resolve, reject) {\n resolveAll = resolve;\n rejectAll = reject;\n });\n var unresolved = promises.length;\n var results = [];\n if (unresolved === 0) {\n resolveAll(results);\n return deferred;\n }\n function reject(reason) {\n if (deferred._status === STATUS_REJECTED) {\n return;\n }\n results = [];\n rejectAll(reason);\n }\n for (var i = 0, ii = promises.length; i < ii; ++i) {\n var promise = promises[i];\n var resolve = (function(i) {\n return function(value) {\n if (deferred._status === STATUS_REJECTED) {\n return;\n }\n results[i] = value;\n unresolved--;\n if (unresolved === 0) {\n resolveAll(results);\n }\n };\n })(i);\n if (Promise.isPromise(promise)) {\n promise.then(resolve, reject);\n } else {\n resolve(promise);\n }\n }\n return deferred;\n };\n\n /**\n * Checks if the value is likely a promise (has a 'then' function).\n * @return {boolean} true if value is thenable\n */\n Promise.isPromise = function Promise_isPromise(value) {\n return value && typeof value.then === 'function';\n };\n\n /**\n * Creates resolved promise\n * @param value resolve value\n * @returns {Promise}\n */\n Promise.resolve = function Promise_resolve(value) {\n return new Promise(function (resolve) { resolve(value); });\n };\n\n /**\n * Creates rejected promise\n * @param reason rejection value\n * @returns {Promise}\n */\n Promise.reject = function Promise_reject(reason) {\n return new Promise(function (resolve, reject) { reject(reason); });\n };\n\n Promise.prototype = {\n _status: null,\n _value: null,\n _handlers: null,\n _unhandledRejection: null,\n\n _updateStatus: function Promise__updateStatus(status, value) {\n if (this._status === STATUS_RESOLVED ||\n this._status === STATUS_REJECTED) {\n return;\n }\n\n if (status === STATUS_RESOLVED &&\n Promise.isPromise(value)) {\n value.then(this._updateStatus.bind(this, STATUS_RESOLVED),\n this._updateStatus.bind(this, STATUS_REJECTED));\n return;\n }\n\n this._status = status;\n this._value = value;\n\n if (status === STATUS_REJECTED && this._handlers.length === 0) {\n this._unhandledRejection = true;\n HandlerManager.addUnhandledRejection(this);\n }\n\n HandlerManager.scheduleHandlers(this);\n },\n\n _resolve: function Promise_resolve(value) {\n this._updateStatus(STATUS_RESOLVED, value);\n },\n\n _reject: function Promise_reject(reason) {\n this._updateStatus(STATUS_REJECTED, reason);\n },\n\n then: function Promise_then(onResolve, onReject) {\n var nextPromise = new Promise(function (resolve, reject) {\n this.resolve = resolve;\n this.reject = reject;\n });\n this._handlers.push({\n thisPromise: this,\n onResolve: onResolve,\n onReject: onReject,\n nextPromise: nextPromise\n });\n HandlerManager.scheduleHandlers(this);\n return nextPromise;\n },\n\n catch: function Promise_catch(onReject) {\n return this.then(undefined, onReject);\n }\n };\n\n globalScope.Promise = Promise;\n//#else\n//throw new Error('DOM Promise is not present');\n//#endif\n})();\n\nvar StatTimer = (function StatTimerClosure() {\n function rpad(str, pad, length) {\n while (str.length < length) {\n str += pad;\n }\n return str;\n }\n function StatTimer() {\n this.started = {};\n this.times = [];\n this.enabled = true;\n }\n StatTimer.prototype = {\n time: function StatTimer_time(name) {\n if (!this.enabled) {\n return;\n }\n if (name in this.started) {\n warn('Timer is already running for ' + name);\n }\n this.started[name] = Date.now();\n },\n timeEnd: function StatTimer_timeEnd(name) {\n if (!this.enabled) {\n return;\n }\n if (!(name in this.started)) {\n warn('Timer has not been started for ' + name);\n }\n this.times.push({\n 'name': name,\n 'start': this.started[name],\n 'end': Date.now()\n });\n // Remove timer from started so it can be called again.\n delete this.started[name];\n },\n toString: function StatTimer_toString() {\n var i, ii;\n var times = this.times;\n var out = '';\n // Find the longest name for padding purposes.\n var longest = 0;\n for (i = 0, ii = times.length; i < ii; ++i) {\n var name = times[i]['name'];\n if (name.length > longest) {\n longest = name.length;\n }\n }\n for (i = 0, ii = times.length; i < ii; ++i) {\n var span = times[i];\n var duration = span.end - span.start;\n out += rpad(span['name'], ' ', longest) + ' ' + duration + 'ms\\n';\n }\n return out;\n }\n };\n return StatTimer;\n})();\n\nPDFJS.createBlob = function createBlob(data, contentType) {\n if (typeof Blob !== 'undefined') {\n return new Blob([data], { type: contentType });\n }\n // Blob builder is deprecated in FF14 and removed in FF18.\n var bb = new MozBlobBuilder();\n bb.append(data);\n return bb.getBlob(contentType);\n};\n\nPDFJS.createObjectURL = (function createObjectURLClosure() {\n // Blob/createObjectURL is not available, falling back to data schema.\n var digits =\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\n return function createObjectURL(data, contentType) {\n if (!PDFJS.disableCreateObjectURL &&\n typeof URL !== 'undefined' && URL.createObjectURL) {\n var blob = PDFJS.createBlob(data, contentType);\n return URL.createObjectURL(blob);\n }\n\n var buffer = 'data:' + contentType + ';base64,';\n for (var i = 0, ii = data.length; i < ii; i += 3) {\n var b1 = data[i] & 0xFF;\n var b2 = data[i + 1] & 0xFF;\n var b3 = data[i + 2] & 0xFF;\n var d1 = b1 >> 2, d2 = ((b1 & 3) << 4) | (b2 >> 4);\n var d3 = i + 1 < ii ? ((b2 & 0xF) << 2) | (b3 >> 6) : 64;\n var d4 = i + 2 < ii ? (b3 & 0x3F) : 64;\n buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];\n }\n return buffer;\n };\n})();\n\nfunction MessageHandler(name, comObj) {\n this.name = name;\n this.comObj = comObj;\n this.callbackIndex = 1;\n this.postMessageTransfers = true;\n var callbacksCapabilities = this.callbacksCapabilities = {};\n var ah = this.actionHandler = {};\n\n ah['console_log'] = [function ahConsoleLog(data) {\n console.log.apply(console, data);\n }];\n ah['console_error'] = [function ahConsoleError(data) {\n console.error.apply(console, data);\n }];\n ah['_unsupported_feature'] = [function ah_unsupportedFeature(data) {\n UnsupportedManager.notify(data);\n }];\n\n comObj.onmessage = function messageHandlerComObjOnMessage(event) {\n var data = event.data;\n if (data.isReply) {\n var callbackId = data.callbackId;\n if (data.callbackId in callbacksCapabilities) {\n var callback = callbacksCapabilities[callbackId];\n delete callbacksCapabilities[callbackId];\n if ('error' in data) {\n callback.reject(data.error);\n } else {\n callback.resolve(data.data);\n }\n } else {\n error('Cannot resolve callback ' + callbackId);\n }\n } else if (data.action in ah) {\n var action = ah[data.action];\n if (data.callbackId) {\n Promise.resolve().then(function () {\n return action[0].call(action[1], data.data);\n }).then(function (result) {\n comObj.postMessage({\n isReply: true,\n callbackId: data.callbackId,\n data: result\n });\n }, function (reason) {\n comObj.postMessage({\n isReply: true,\n callbackId: data.callbackId,\n error: reason\n });\n });\n } else {\n action[0].call(action[1], data.data);\n }\n } else {\n error('Unknown action from worker: ' + data.action);\n }\n };\n}\n\nMessageHandler.prototype = {\n on: function messageHandlerOn(actionName, handler, scope) {\n var ah = this.actionHandler;\n if (ah[actionName]) {\n error('There is already an actionName called \"' + actionName + '\"');\n }\n ah[actionName] = [handler, scope];\n },\n /**\n * Sends a message to the comObj to invoke the action with the supplied data.\n * @param {String} actionName Action to call.\n * @param {JSON} data JSON data to send.\n * @param {Array} [transfers] Optional list of transfers/ArrayBuffers\n */\n send: function messageHandlerSend(actionName, data, transfers) {\n var message = {\n action: actionName,\n data: data\n };\n this.postMessage(message, transfers);\n },\n /**\n * Sends a message to the comObj to invoke the action with the supplied data.\n * Expects that other side will callback with the response.\n * @param {String} actionName Action to call.\n * @param {JSON} data JSON data to send.\n * @param {Array} [transfers] Optional list of transfers/ArrayBuffers.\n * @returns {Promise} Promise to be resolved with response data.\n */\n sendWithPromise:\n function messageHandlerSendWithPromise(actionName, data, transfers) {\n var callbackId = this.callbackIndex++;\n var message = {\n action: actionName,\n data: data,\n callbackId: callbackId\n };\n var capability = createPromiseCapability();\n this.callbacksCapabilities[callbackId] = capability;\n try {\n this.postMessage(message, transfers);\n } catch (e) {\n capability.reject(e);\n }\n return capability.promise;\n },\n /**\n * Sends raw message to the comObj.\n * @private\n * @param message {Object} Raw message.\n * @param transfers List of transfers/ArrayBuffers, or undefined.\n */\n postMessage: function (message, transfers) {\n if (transfers && this.postMessageTransfers) {\n this.comObj.postMessage(message, transfers);\n } else {\n this.comObj.postMessage(message);\n }\n }\n};\n\nfunction loadJpegStream(id, imageUrl, objs) {\n var img = new Image();\n img.onload = (function loadJpegStream_onloadClosure() {\n objs.resolve(id, img);\n });\n img.onerror = (function loadJpegStream_onerrorClosure() {\n objs.resolve(id, null);\n warn('Error during JPEG image loading');\n });\n img.src = imageUrl;\n}\n\n\n/**\n * The maximum allowed image size in total pixels e.g. width * height. Images\n * above this value will not be drawn. Use -1 for no limit.\n * @var {number}\n */\nPDFJS.maxImageSize = (PDFJS.maxImageSize === undefined ?\n -1 : PDFJS.maxImageSize);\n\n/**\n * The url of where the predefined Adobe CMaps are located. Include trailing\n * slash.\n * @var {string}\n */\nPDFJS.cMapUrl = (PDFJS.cMapUrl === undefined ? null : PDFJS.cMapUrl);\n\n/**\n * Specifies if CMaps are binary packed.\n * @var {boolean}\n */\nPDFJS.cMapPacked = PDFJS.cMapPacked === undefined ? false : PDFJS.cMapPacked;\n\n/**\n * By default fonts are converted to OpenType fonts and loaded via font face\n * rules. If disabled, the font will be rendered using a built in font renderer\n * that constructs the glyphs with primitive path commands.\n * @var {boolean}\n */\nPDFJS.disableFontFace = (PDFJS.disableFontFace === undefined ?\n false : PDFJS.disableFontFace);\n\n/**\n * Path for image resources, mainly for annotation icons. Include trailing\n * slash.\n * @var {string}\n */\nPDFJS.imageResourcesPath = (PDFJS.imageResourcesPath === undefined ?\n '' : PDFJS.imageResourcesPath);\n\n/**\n * Disable the web worker and run all code on the main thread. This will happen\n * automatically if the browser doesn't support workers or sending typed arrays\n * to workers.\n * @var {boolean}\n */\nPDFJS.disableWorker = (PDFJS.disableWorker === undefined ?\n false : PDFJS.disableWorker);\n\n/**\n * Path and filename of the worker file. Required when the worker is enabled in\n * development mode. If unspecified in the production build, the worker will be\n * loaded based on the location of the pdf.js file.\n * @var {string}\n */\nPDFJS.workerSrc = (PDFJS.workerSrc === undefined ? null : PDFJS.workerSrc);\n\n/**\n * Disable range request loading of PDF files. When enabled and if the server\n * supports partial content requests then the PDF will be fetched in chunks.\n * Enabled (false) by default.\n * @var {boolean}\n */\nPDFJS.disableRange = (PDFJS.disableRange === undefined ?\n false : PDFJS.disableRange);\n\n/**\n * Disable streaming of PDF file data. By default PDF.js attempts to load PDF\n * in chunks. This default behavior can be disabled.\n * @var {boolean}\n */\nPDFJS.disableStream = (PDFJS.disableStream === undefined ?\n false : PDFJS.disableStream);\n\n/**\n * Disable pre-fetching of PDF file data. When range requests are enabled PDF.js\n * will automatically keep fetching more data even if it isn't needed to display\n * the current page. This default behavior can be disabled.\n *\n * NOTE: It is also necessary to disable streaming, see above,\n * in order for disabling of pre-fetching to work correctly.\n * @var {boolean}\n */\nPDFJS.disableAutoFetch = (PDFJS.disableAutoFetch === undefined ?\n false : PDFJS.disableAutoFetch);\n\n/**\n * Enables special hooks for debugging PDF.js.\n * @var {boolean}\n */\nPDFJS.pdfBug = (PDFJS.pdfBug === undefined ? false : PDFJS.pdfBug);\n\n/**\n * Enables transfer usage in postMessage for ArrayBuffers.\n * @var {boolean}\n */\nPDFJS.postMessageTransfers = (PDFJS.postMessageTransfers === undefined ?\n true : PDFJS.postMessageTransfers);\n\n/**\n * Disables URL.createObjectURL usage.\n * @var {boolean}\n */\nPDFJS.disableCreateObjectURL = (PDFJS.disableCreateObjectURL === undefined ?\n false : PDFJS.disableCreateObjectURL);\n\n/**\n * Disables WebGL usage.\n * @var {boolean}\n */\nPDFJS.disableWebGL = (PDFJS.disableWebGL === undefined ?\n true : PDFJS.disableWebGL);\n\n/**\n * Disables fullscreen support, and by extension Presentation Mode,\n * in browsers which support the fullscreen API.\n * @var {boolean}\n */\nPDFJS.disableFullscreen = (PDFJS.disableFullscreen === undefined ?\n false : PDFJS.disableFullscreen);\n\n/**\n * Enables CSS only zooming.\n * @var {boolean}\n */\nPDFJS.useOnlyCssZoom = (PDFJS.useOnlyCssZoom === undefined ?\n false : PDFJS.useOnlyCssZoom);\n\n/**\n * Controls the logging level.\n * The constants from PDFJS.VERBOSITY_LEVELS should be used:\n * - errors\n * - warnings [default]\n * - infos\n * @var {number}\n */\nPDFJS.verbosity = (PDFJS.verbosity === undefined ?\n PDFJS.VERBOSITY_LEVELS.warnings : PDFJS.verbosity);\n\n/**\n * The maximum supported canvas size in total pixels e.g. width * height.\n * The default value is 4096 * 4096. Use -1 for no limit.\n * @var {number}\n */\nPDFJS.maxCanvasPixels = (PDFJS.maxCanvasPixels === undefined ?\n 16777216 : PDFJS.maxCanvasPixels);\n\n/**\n * Opens external links in a new window if enabled. The default behavior opens\n * external links in the PDF.js window.\n * @var {boolean}\n */\nPDFJS.openExternalLinksInNewWindow = (\n PDFJS.openExternalLinksInNewWindow === undefined ?\n false : PDFJS.openExternalLinksInNewWindow);\n\n/**\n * Document initialization / loading parameters object.\n *\n * @typedef {Object} DocumentInitParameters\n * @property {string} url - The URL of the PDF.\n * @property {TypedArray|Array|string} data - Binary PDF data. Use typed arrays\n * (Uint8Array) to improve the memory usage. If PDF data is BASE64-encoded,\n * use atob() to convert it to a binary string first.\n * @property {Object} httpHeaders - Basic authentication headers.\n * @property {boolean} withCredentials - Indicates whether or not cross-site\n * Access-Control requests should be made using credentials such as cookies\n * or authorization headers. The default is false.\n * @property {string} password - For decrypting password-protected PDFs.\n * @property {TypedArray} initialData - A typed array with the first portion or\n * all of the pdf data. Used by the extension since some data is already\n * loaded before the switch to range requests.\n * @property {number} length - The PDF file length. It's used for progress\n * reports and range requests operations.\n * @property {PDFDataRangeTransport} range\n */\n\n/**\n * @typedef {Object} PDFDocumentStats\n * @property {Array} streamTypes - Used stream types in the document (an item\n * is set to true if specific stream ID was used in the document).\n * @property {Array} fontTypes - Used font type in the document (an item is set\n * to true if specific font ID was used in the document).\n */\n\n/**\n * This is the main entry point for loading a PDF and interacting with it.\n * NOTE: If a URL is used to fetch the PDF data a standard XMLHttpRequest(XHR)\n * is used, which means it must follow the same origin rules that any XHR does\n * e.g. No cross domain requests without CORS.\n *\n * @param {string|TypedArray|DocumentInitParameters|PDFDataRangeTransport} src\n * Can be a url to where a PDF is located, a typed array (Uint8Array)\n * already populated with data or parameter object.\n *\n * @param {PDFDataRangeTransport} pdfDataRangeTransport (deprecated) It is used\n * if you want to manually serve range requests for data in the PDF.\n *\n * @param {function} passwordCallback (deprecated) It is used to request a\n * password if wrong or no password was provided. The callback receives two\n * parameters: function that needs to be called with new password and reason\n * (see {PasswordResponses}).\n *\n * @param {function} progressCallback (deprecated) It is used to be able to\n * monitor the loading progress of the PDF file (necessary to implement e.g.\n * a loading bar). The callback receives an {Object} with the properties:\n * {number} loaded and {number} total.\n *\n * @return {PDFDocumentLoadingTask}\n */\nPDFJS.getDocument = function getDocument(src,\n pdfDataRangeTransport,\n passwordCallback,\n progressCallback) {\n var task = new PDFDocumentLoadingTask();\n\n // Support of the obsolete arguments (for compatibility with API v1.0)\n if (pdfDataRangeTransport) {\n if (!(pdfDataRangeTransport instanceof PDFDataRangeTransport)) {\n // Not a PDFDataRangeTransport instance, trying to add missing properties.\n pdfDataRangeTransport = Object.create(pdfDataRangeTransport);\n pdfDataRangeTransport.length = src.length;\n pdfDataRangeTransport.initialData = src.initialData;\n }\n src = Object.create(src);\n src.range = pdfDataRangeTransport;\n }\n task.onPassword = passwordCallback || null;\n task.onProgress = progressCallback || null;\n\n var workerInitializedCapability, transport;\n var source;\n if (typeof src === 'string') {\n source = { url: src };\n } else if (isArrayBuffer(src)) {\n source = { data: src };\n } else if (src instanceof PDFDataRangeTransport) {\n source = { range: src };\n } else {\n if (typeof src !== 'object') {\n error('Invalid parameter in getDocument, need either Uint8Array, ' +\n 'string or a parameter object');\n }\n if (!src.url && !src.data && !src.range) {\n error('Invalid parameter object: need either .data, .range or .url');\n }\n\n source = src;\n }\n\n var params = {};\n for (var key in source) {\n if (key === 'url' && typeof window !== 'undefined') {\n // The full path is required in the 'url' field.\n params[key] = combineUrl(window.location.href, source[key]);\n continue;\n } else if (key === 'range') {\n continue;\n } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {\n // Converting string or array-like data to Uint8Array.\n var pdfBytes = source[key];\n if (typeof pdfBytes === 'string') {\n params[key] = stringToBytes(pdfBytes);\n } else if (typeof pdfBytes === 'object' && pdfBytes !== null &&\n !isNaN(pdfBytes.length)) {\n params[key] = new Uint8Array(pdfBytes);\n } else {\n error('Invalid PDF binary data: either typed array, string or ' +\n 'array-like object is expected in the data property.');\n }\n continue;\n }\n params[key] = source[key];\n }\n\n workerInitializedCapability = createPromiseCapability();\n transport = new WorkerTransport(workerInitializedCapability, source.range);\n workerInitializedCapability.promise.then(function transportInitialized() {\n transport.fetchDocument(task, params);\n });\n\n return task;\n};\n\n/**\n * PDF document loading operation.\n * @class\n */\nvar PDFDocumentLoadingTask = (function PDFDocumentLoadingTaskClosure() {\n /** @constructs PDFDocumentLoadingTask */\n function PDFDocumentLoadingTask() {\n this._capability = createPromiseCapability();\n\n /**\n * Callback to request a password if wrong or no password was provided.\n * The callback receives two parameters: function that needs to be called\n * with new password and reason (see {PasswordResponses}).\n */\n this.onPassword = null;\n\n /**\n * Callback to be able to monitor the loading progress of the PDF file\n * (necessary to implement e.g. a loading bar). The callback receives\n * an {Object} with the properties: {number} loaded and {number} total.\n */\n this.onProgress = null;\n }\n\n PDFDocumentLoadingTask.prototype =\n /** @lends PDFDocumentLoadingTask.prototype */ {\n /**\n * @return {Promise}\n */\n get promise() {\n return this._capability.promise;\n },\n\n // TODO add cancel or abort method\n\n /**\n * Registers callbacks to indicate the document loading completion.\n *\n * @param {function} onFulfilled The callback for the loading completion.\n * @param {function} onRejected The callback for the loading failure.\n * @return {Promise} A promise that is resolved after the onFulfilled or\n * onRejected callback.\n */\n then: function PDFDocumentLoadingTask_then(onFulfilled, onRejected) {\n return this.promise.then.apply(this.promise, arguments);\n }\n };\n\n return PDFDocumentLoadingTask;\n})();\n\n/**\n * Abstract class to support range requests file loading.\n * @class\n */\nvar PDFDataRangeTransport = (function pdfDataRangeTransportClosure() {\n /**\n * @constructs PDFDataRangeTransport\n * @param {number} length\n * @param {Uint8Array} initialData\n */\n function PDFDataRangeTransport(length, initialData) {\n this.length = length;\n this.initialData = initialData;\n\n this._rangeListeners = [];\n this._progressListeners = [];\n this._progressiveReadListeners = [];\n this._readyCapability = createPromiseCapability();\n }\n PDFDataRangeTransport.prototype =\n /** @lends PDFDataRangeTransport.prototype */ {\n addRangeListener:\n function PDFDataRangeTransport_addRangeListener(listener) {\n this._rangeListeners.push(listener);\n },\n\n addProgressListener:\n function PDFDataRangeTransport_addProgressListener(listener) {\n this._progressListeners.push(listener);\n },\n\n addProgressiveReadListener:\n function PDFDataRangeTransport_addProgressiveReadListener(listener) {\n this._progressiveReadListeners.push(listener);\n },\n\n onDataRange: function PDFDataRangeTransport_onDataRange(begin, chunk) {\n var listeners = this._rangeListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](begin, chunk);\n }\n },\n\n onDataProgress: function PDFDataRangeTransport_onDataProgress(loaded) {\n this._readyCapability.promise.then(function () {\n var listeners = this._progressListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](loaded);\n }\n }.bind(this));\n },\n\n onDataProgressiveRead:\n function PDFDataRangeTransport_onDataProgress(chunk) {\n this._readyCapability.promise.then(function () {\n var listeners = this._progressiveReadListeners;\n for (var i = 0, n = listeners.length; i < n; ++i) {\n listeners[i](chunk);\n }\n }.bind(this));\n },\n\n transportReady: function PDFDataRangeTransport_transportReady() {\n this._readyCapability.resolve();\n },\n\n requestDataRange:\n function PDFDataRangeTransport_requestDataRange(begin, end) {\n throw new Error('Abstract method PDFDataRangeTransport.requestDataRange');\n }\n };\n return PDFDataRangeTransport;\n})();\n\nPDFJS.PDFDataRangeTransport = PDFDataRangeTransport;\n\n/**\n * Proxy to a PDFDocument in the worker thread. Also, contains commonly used\n * properties that can be read synchronously.\n * @class\n */\nvar PDFDocumentProxy = (function PDFDocumentProxyClosure() {\n function PDFDocumentProxy(pdfInfo, transport) {\n this.pdfInfo = pdfInfo;\n this.transport = transport;\n }\n PDFDocumentProxy.prototype = /** @lends PDFDocumentProxy.prototype */ {\n /**\n * @return {number} Total number of pages the PDF contains.\n */\n get numPages() {\n return this.pdfInfo.numPages;\n },\n /**\n * @return {string} A unique ID to identify a PDF. Not guaranteed to be\n * unique.\n */\n get fingerprint() {\n return this.pdfInfo.fingerprint;\n },\n /**\n * @param {number} pageNumber The page number to get. The first page is 1.\n * @return {Promise} A promise that is resolved with a {@link PDFPageProxy}\n * object.\n */\n getPage: function PDFDocumentProxy_getPage(pageNumber) {\n return this.transport.getPage(pageNumber);\n },\n /**\n * @param {{num: number, gen: number}} ref The page reference. Must have\n * the 'num' and 'gen' properties.\n * @return {Promise} A promise that is resolved with the page index that is\n * associated with the reference.\n */\n getPageIndex: function PDFDocumentProxy_getPageIndex(ref) {\n return this.transport.getPageIndex(ref);\n },\n /**\n * @return {Promise} A promise that is resolved with a lookup table for\n * mapping named destinations to reference numbers.\n *\n * This can be slow for large documents: use getDestination instead\n */\n getDestinations: function PDFDocumentProxy_getDestinations() {\n return this.transport.getDestinations();\n },\n /**\n * @param {string} id The named destination to get.\n * @return {Promise} A promise that is resolved with all information\n * of the given named destination.\n */\n getDestination: function PDFDocumentProxy_getDestination(id) {\n return this.transport.getDestination(id);\n },\n /**\n * @return {Promise} A promise that is resolved with a lookup table for\n * mapping named attachments to their content.\n */\n getAttachments: function PDFDocumentProxy_getAttachments() {\n return this.transport.getAttachments();\n },\n /**\n * @return {Promise} A promise that is resolved with an array of all the\n * JavaScript strings in the name tree.\n */\n getJavaScript: function PDFDocumentProxy_getJavaScript() {\n return this.transport.getJavaScript();\n },\n /**\n * @return {Promise} A promise that is resolved with an {Array} that is a\n * tree outline (if it has one) of the PDF. The tree is in the format of:\n * [\n * {\n * title: string,\n * bold: boolean,\n * italic: boolean,\n * color: rgb array,\n * dest: dest obj,\n * items: array of more items like this\n * },\n * ...\n * ].\n */\n getOutline: function PDFDocumentProxy_getOutline() {\n return this.transport.getOutline();\n },\n /**\n * @return {Promise} A promise that is resolved with an {Object} that has\n * info and metadata properties. Info is an {Object} filled with anything\n * available in the information dictionary and similarly metadata is a\n * {Metadata} object with information from the metadata section of the PDF.\n */\n getMetadata: function PDFDocumentProxy_getMetadata() {\n return this.transport.getMetadata();\n },\n /**\n * @return {Promise} A promise that is resolved with a TypedArray that has\n * the raw data from the PDF.\n */\n getData: function PDFDocumentProxy_getData() {\n return this.transport.getData();\n },\n /**\n * @return {Promise} A promise that is resolved when the document's data\n * is loaded. It is resolved with an {Object} that contains the length\n * property that indicates size of the PDF data in bytes.\n */\n getDownloadInfo: function PDFDocumentProxy_getDownloadInfo() {\n return this.transport.downloadInfoCapability.promise;\n },\n /**\n * @return {Promise} A promise this is resolved with current stats about\n * document structures (see {@link PDFDocumentStats}).\n */\n getStats: function PDFDocumentProxy_getStats() {\n return this.transport.getStats();\n },\n /**\n * Cleans up resources allocated by the document, e.g. created @font-face.\n */\n cleanup: function PDFDocumentProxy_cleanup() {\n this.transport.startCleanup();\n },\n /**\n * Destroys current document instance and terminates worker.\n */\n destroy: function PDFDocumentProxy_destroy() {\n this.transport.destroy();\n }\n };\n return PDFDocumentProxy;\n})();\n\n/**\n * Page text content.\n *\n * @typedef {Object} TextContent\n * @property {array} items - array of {@link TextItem}\n * @property {Object} styles - {@link TextStyles} objects, indexed by font\n * name.\n */\n\n/**\n * Page text content part.\n *\n * @typedef {Object} TextItem\n * @property {string} str - text content.\n * @property {string} dir - text direction: 'ttb', 'ltr' or 'rtl'.\n * @property {array} transform - transformation matrix.\n * @property {number} width - width in device space.\n * @property {number} height - height in device space.\n * @property {string} fontName - font name used by pdf.js for converted font.\n */\n\n/**\n * Text style.\n *\n * @typedef {Object} TextStyle\n * @property {number} ascent - font ascent.\n * @property {number} descent - font descent.\n * @property {boolean} vertical - text is in vertical mode.\n * @property {string} fontFamily - possible font family\n */\n\n/**\n * Page render parameters.\n *\n * @typedef {Object} RenderParameters\n * @property {Object} canvasContext - A 2D context of a DOM Canvas object.\n * @property {PDFJS.PageViewport} viewport - Rendering viewport obtained by\n * calling of PDFPage.getViewport method.\n * @property {string} intent - Rendering intent, can be 'display' or 'print'\n * (default value is 'display').\n * @property {Object} imageLayer - (optional) An object that has beginLayout,\n * endLayout and appendImage functions.\n * @property {function} continueCallback - (deprecated) A function that will be\n * called each time the rendering is paused. To continue\n * rendering call the function that is the first argument\n * to the callback.\n */\n\n/**\n * PDF page operator list.\n *\n * @typedef {Object} PDFOperatorList\n * @property {Array} fnArray - Array containing the operator functions.\n * @property {Array} argsArray - Array containing the arguments of the\n * functions.\n */\n\n/**\n * Proxy to a PDFPage in the worker thread.\n * @class\n */\nvar PDFPageProxy = (function PDFPageProxyClosure() {\n function PDFPageProxy(pageIndex, pageInfo, transport) {\n this.pageIndex = pageIndex;\n this.pageInfo = pageInfo;\n this.transport = transport;\n this.stats = new StatTimer();\n this.stats.enabled = !!globalScope.PDFJS.enableStats;\n this.commonObjs = transport.commonObjs;\n this.objs = new PDFObjects();\n this.cleanupAfterRender = false;\n this.pendingDestroy = false;\n this.intentStates = {};\n }\n PDFPageProxy.prototype = /** @lends PDFPageProxy.prototype */ {\n /**\n * @return {number} Page number of the page. First page is 1.\n */\n get pageNumber() {\n return this.pageIndex + 1;\n },\n /**\n * @return {number} The number of degrees the page is rotated clockwise.\n */\n get rotate() {\n return this.pageInfo.rotate;\n },\n /**\n * @return {Object} The reference that points to this page. It has 'num' and\n * 'gen' properties.\n */\n get ref() {\n return this.pageInfo.ref;\n },\n /**\n * @return {Array} An array of the visible portion of the PDF page in the\n * user space units - [x1, y1, x2, y2].\n */\n get view() {\n return this.pageInfo.view;\n },\n /**\n * @param {number} scale The desired scale of the viewport.\n * @param {number} rotate Degrees to rotate the viewport. If omitted this\n * defaults to the page rotation.\n * @return {PDFJS.PageViewport} Contains 'width' and 'height' properties\n * along with transforms required for rendering.\n */\n getViewport: function PDFPageProxy_getViewport(scale, rotate) {\n if (arguments.length < 2) {\n rotate = this.rotate;\n }\n return new PDFJS.PageViewport(this.view, scale, rotate, 0, 0);\n },\n /**\n * @return {Promise} A promise that is resolved with an {Array} of the\n * annotation objects.\n */\n getAnnotations: function PDFPageProxy_getAnnotations() {\n if (this.annotationsPromise) {\n return this.annotationsPromise;\n }\n\n var promise = this.transport.getAnnotations(this.pageIndex);\n this.annotationsPromise = promise;\n return promise;\n },\n /**\n * Begins the process of rendering a page to the desired context.\n * @param {RenderParameters} params Page render parameters.\n * @return {RenderTask} An object that contains the promise, which\n * is resolved when the page finishes rendering.\n */\n render: function PDFPageProxy_render(params) {\n var stats = this.stats;\n stats.time('Overall');\n\n // If there was a pending destroy cancel it so no cleanup happens during\n // this call to render.\n this.pendingDestroy = false;\n\n var renderingIntent = (params.intent === 'print' ? 'print' : 'display');\n\n if (!this.intentStates[renderingIntent]) {\n this.intentStates[renderingIntent] = {};\n }\n var intentState = this.intentStates[renderingIntent];\n\n // If there's no displayReadyCapability yet, then the operatorList\n // was never requested before. Make the request and create the promise.\n if (!intentState.displayReadyCapability) {\n intentState.receivingOperatorList = true;\n intentState.displayReadyCapability = createPromiseCapability();\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false\n };\n\n this.stats.time('Page Request');\n this.transport.messageHandler.send('RenderPageRequest', {\n pageIndex: this.pageNumber - 1,\n intent: renderingIntent\n });\n }\n\n var internalRenderTask = new InternalRenderTask(complete, params,\n this.objs,\n this.commonObjs,\n intentState.operatorList,\n this.pageNumber);\n if (!intentState.renderTasks) {\n intentState.renderTasks = [];\n }\n intentState.renderTasks.push(internalRenderTask);\n var renderTask = internalRenderTask.task;\n\n // Obsolete parameter support\n if (params.continueCallback) {\n renderTask.onContinue = params.continueCallback;\n }\n\n var self = this;\n intentState.displayReadyCapability.promise.then(\n function pageDisplayReadyPromise(transparency) {\n if (self.pendingDestroy) {\n complete();\n return;\n }\n stats.time('Rendering');\n internalRenderTask.initalizeGraphics(transparency);\n internalRenderTask.operatorListChanged();\n },\n function pageDisplayReadPromiseError(reason) {\n complete(reason);\n }\n );\n\n function complete(error) {\n var i = intentState.renderTasks.indexOf(internalRenderTask);\n if (i >= 0) {\n intentState.renderTasks.splice(i, 1);\n }\n\n if (self.cleanupAfterRender) {\n self.pendingDestroy = true;\n }\n self._tryDestroy();\n\n if (error) {\n internalRenderTask.capability.reject(error);\n } else {\n internalRenderTask.capability.resolve();\n }\n stats.timeEnd('Rendering');\n stats.timeEnd('Overall');\n }\n\n return renderTask;\n },\n\n /**\n * @return {Promise} A promise resolved with an {@link PDFOperatorList}\n * object that represents page's operator list.\n */\n getOperatorList: function PDFPageProxy_getOperatorList() {\n function operatorListChanged() {\n if (intentState.operatorList.lastChunk) {\n intentState.opListReadCapability.resolve(intentState.operatorList);\n }\n }\n\n var renderingIntent = 'oplist';\n if (!this.intentStates[renderingIntent]) {\n this.intentStates[renderingIntent] = {};\n }\n var intentState = this.intentStates[renderingIntent];\n\n if (!intentState.opListReadCapability) {\n var opListTask = {};\n opListTask.operatorListChanged = operatorListChanged;\n intentState.receivingOperatorList = true;\n intentState.opListReadCapability = createPromiseCapability();\n intentState.renderTasks = [];\n intentState.renderTasks.push(opListTask);\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false\n };\n\n this.transport.messageHandler.send('RenderPageRequest', {\n pageIndex: this.pageIndex,\n intent: renderingIntent\n });\n }\n return intentState.opListReadCapability.promise;\n },\n\n /**\n * @return {Promise} That is resolved a {@link TextContent}\n * object that represent the page text content.\n */\n getTextContent: function PDFPageProxy_getTextContent() {\n return this.transport.messageHandler.sendWithPromise('GetTextContent', {\n pageIndex: this.pageNumber - 1\n });\n },\n /**\n * Destroys resources allocated by the page.\n */\n destroy: function PDFPageProxy_destroy() {\n this.pendingDestroy = true;\n this._tryDestroy();\n },\n /**\n * For internal use only. Attempts to clean up if rendering is in a state\n * where that's possible.\n * @ignore\n */\n _tryDestroy: function PDFPageProxy__destroy() {\n if (!this.pendingDestroy ||\n Object.keys(this.intentStates).some(function(intent) {\n var intentState = this.intentStates[intent];\n return (intentState.renderTasks.length !== 0 ||\n intentState.receivingOperatorList);\n }, this)) {\n return;\n }\n\n Object.keys(this.intentStates).forEach(function(intent) {\n delete this.intentStates[intent];\n }, this);\n this.objs.clear();\n this.annotationsPromise = null;\n this.pendingDestroy = false;\n },\n /**\n * For internal use only.\n * @ignore\n */\n _startRenderPage: function PDFPageProxy_startRenderPage(transparency,\n intent) {\n var intentState = this.intentStates[intent];\n // TODO Refactor RenderPageRequest to separate rendering\n // and operator list logic\n if (intentState.displayReadyCapability) {\n intentState.displayReadyCapability.resolve(transparency);\n }\n },\n /**\n * For internal use only.\n * @ignore\n */\n _renderPageChunk: function PDFPageProxy_renderPageChunk(operatorListChunk,\n intent) {\n var intentState = this.intentStates[intent];\n var i, ii;\n // Add the new chunk to the current operator list.\n for (i = 0, ii = operatorListChunk.length; i < ii; i++) {\n intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);\n intentState.operatorList.argsArray.push(\n operatorListChunk.argsArray[i]);\n }\n intentState.operatorList.lastChunk = operatorListChunk.lastChunk;\n\n // Notify all the rendering tasks there are more operators to be consumed.\n for (i = 0; i < intentState.renderTasks.length; i++) {\n intentState.renderTasks[i].operatorListChanged();\n }\n\n if (operatorListChunk.lastChunk) {\n intentState.receivingOperatorList = false;\n this._tryDestroy();\n }\n }\n };\n return PDFPageProxy;\n})();\n\n/**\n * For internal use only.\n * @ignore\n */\nvar WorkerTransport = (function WorkerTransportClosure() {\n function WorkerTransport(workerInitializedCapability, pdfDataRangeTransport) {\n this.pdfDataRangeTransport = pdfDataRangeTransport;\n this.workerInitializedCapability = workerInitializedCapability;\n this.commonObjs = new PDFObjects();\n\n this.loadingTask = null;\n\n this.pageCache = [];\n this.pagePromises = [];\n this.downloadInfoCapability = createPromiseCapability();\n\n // If worker support isn't disabled explicit and the browser has worker\n // support, create a new web worker and test if it/the browser fullfills\n // all requirements to run parts of pdf.js in a web worker.\n // Right now, the requirement is, that an Uint8Array is still an Uint8Array\n // as it arrives on the worker. Chrome added this with version 15.\n//#if !SINGLE_FILE\n if (!globalScope.PDFJS.disableWorker && typeof Worker !== 'undefined') {\n var workerSrc = PDFJS.workerSrc;\n if (!workerSrc) {\n error('No PDFJS.workerSrc specified');\n }\n\n try {\n // Some versions of FF can't create a worker on localhost, see:\n // https://bugzilla.mozilla.org/show_bug.cgi?id=683280\n var worker = new Worker(workerSrc);\n var messageHandler = new MessageHandler('main', worker);\n this.messageHandler = messageHandler;\n\n messageHandler.on('test', function transportTest(data) {\n var supportTypedArray = data && data.supportTypedArray;\n if (supportTypedArray) {\n this.worker = worker;\n if (!data.supportTransfers) {\n PDFJS.postMessageTransfers = false;\n }\n this.setupMessageHandler(messageHandler);\n workerInitializedCapability.resolve();\n } else {\n this.setupFakeWorker();\n }\n }.bind(this));\n\n var testObj = new Uint8Array([PDFJS.postMessageTransfers ? 255 : 0]);\n // Some versions of Opera throw a DATA_CLONE_ERR on serializing the\n // typed array. Also, checking if we can use transfers.\n try {\n messageHandler.send('test', testObj, [testObj.buffer]);\n } catch (ex) {\n info('Cannot use postMessage transfers');\n testObj[0] = 0;\n messageHandler.send('test', testObj);\n }\n return;\n } catch (e) {\n info('The worker has been disabled.');\n }\n }\n//#endif\n // Either workers are disabled, not supported or have thrown an exception.\n // Thus, we fallback to a faked worker.\n this.setupFakeWorker();\n }\n WorkerTransport.prototype = {\n destroy: function WorkerTransport_destroy() {\n this.pageCache = [];\n this.pagePromises = [];\n var self = this;\n this.messageHandler.sendWithPromise('Terminate', null).then(function () {\n FontLoader.clear();\n if (self.worker) {\n self.worker.terminate();\n }\n });\n },\n\n setupFakeWorker: function WorkerTransport_setupFakeWorker() {\n globalScope.PDFJS.disableWorker = true;\n\n if (!PDFJS.fakeWorkerFilesLoadedCapability) {\n PDFJS.fakeWorkerFilesLoadedCapability = createPromiseCapability();\n // In the developer build load worker_loader which in turn loads all the\n // other files and resolves the promise. In production only the\n // pdf.worker.js file is needed.\n//#if !PRODUCTION\n Util.loadScript(PDFJS.workerSrc);\n//#endif\n//#if PRODUCTION && SINGLE_FILE\n// PDFJS.fakeWorkerFilesLoadedCapability.resolve();\n//#endif\n//#if PRODUCTION && !SINGLE_FILE\n// Util.loadScript(PDFJS.workerSrc, function() {\n// PDFJS.fakeWorkerFilesLoadedCapability.resolve();\n// });\n//#endif\n }\n PDFJS.fakeWorkerFilesLoadedCapability.promise.then(function () {\n warn('Setting up fake worker.');\n // If we don't use a worker, just post/sendMessage to the main thread.\n var fakeWorker = {\n postMessage: function WorkerTransport_postMessage(obj) {\n fakeWorker.onmessage({data: obj});\n },\n terminate: function WorkerTransport_terminate() {}\n };\n\n var messageHandler = new MessageHandler('main', fakeWorker);\n this.setupMessageHandler(messageHandler);\n\n // If the main thread is our worker, setup the handling for the messages\n // the main thread sends to it self.\n PDFJS.WorkerMessageHandler.setup(messageHandler);\n\n this.workerInitializedCapability.resolve();\n }.bind(this));\n },\n\n setupMessageHandler:\n function WorkerTransport_setupMessageHandler(messageHandler) {\n this.messageHandler = messageHandler;\n\n function updatePassword(password) {\n messageHandler.send('UpdatePassword', password);\n }\n\n var pdfDataRangeTransport = this.pdfDataRangeTransport;\n if (pdfDataRangeTransport) {\n pdfDataRangeTransport.addRangeListener(function(begin, chunk) {\n messageHandler.send('OnDataRange', {\n begin: begin,\n chunk: chunk\n });\n });\n\n pdfDataRangeTransport.addProgressListener(function(loaded) {\n messageHandler.send('OnDataProgress', {\n loaded: loaded\n });\n });\n\n pdfDataRangeTransport.addProgressiveReadListener(function(chunk) {\n messageHandler.send('OnDataRange', {\n chunk: chunk\n });\n });\n\n messageHandler.on('RequestDataRange',\n function transportDataRange(data) {\n pdfDataRangeTransport.requestDataRange(data.begin, data.end);\n }, this);\n }\n\n messageHandler.on('GetDoc', function transportDoc(data) {\n var pdfInfo = data.pdfInfo;\n this.numPages = data.pdfInfo.numPages;\n var pdfDocument = new PDFDocumentProxy(pdfInfo, this);\n this.pdfDocument = pdfDocument;\n this.loadingTask._capability.resolve(pdfDocument);\n }, this);\n\n messageHandler.on('NeedPassword',\n function transportNeedPassword(exception) {\n var loadingTask = this.loadingTask;\n if (loadingTask.onPassword) {\n return loadingTask.onPassword(updatePassword,\n PasswordResponses.NEED_PASSWORD);\n }\n loadingTask._capability.reject(\n new PasswordException(exception.message, exception.code));\n }, this);\n\n messageHandler.on('IncorrectPassword',\n function transportIncorrectPassword(exception) {\n var loadingTask = this.loadingTask;\n if (loadingTask.onPassword) {\n return loadingTask.onPassword(updatePassword,\n PasswordResponses.INCORRECT_PASSWORD);\n }\n loadingTask._capability.reject(\n new PasswordException(exception.message, exception.code));\n }, this);\n\n messageHandler.on('InvalidPDF', function transportInvalidPDF(exception) {\n this.loadingTask._capability.reject(\n new InvalidPDFException(exception.message));\n }, this);\n\n messageHandler.on('MissingPDF', function transportMissingPDF(exception) {\n this.loadingTask._capability.reject(\n new MissingPDFException(exception.message));\n }, this);\n\n messageHandler.on('UnexpectedResponse',\n function transportUnexpectedResponse(exception) {\n this.loadingTask._capability.reject(\n new UnexpectedResponseException(exception.message, exception.status));\n }, this);\n\n messageHandler.on('UnknownError',\n function transportUnknownError(exception) {\n this.loadingTask._capability.reject(\n new UnknownErrorException(exception.message, exception.details));\n }, this);\n\n messageHandler.on('DataLoaded', function transportPage(data) {\n this.downloadInfoCapability.resolve(data);\n }, this);\n\n messageHandler.on('PDFManagerReady', function transportPage(data) {\n if (this.pdfDataRangeTransport) {\n this.pdfDataRangeTransport.transportReady();\n }\n }, this);\n\n messageHandler.on('StartRenderPage', function transportRender(data) {\n var page = this.pageCache[data.pageIndex];\n\n page.stats.timeEnd('Page Request');\n page._startRenderPage(data.transparency, data.intent);\n }, this);\n\n messageHandler.on('RenderPageChunk', function transportRender(data) {\n var page = this.pageCache[data.pageIndex];\n\n page._renderPageChunk(data.operatorList, data.intent);\n }, this);\n\n messageHandler.on('commonobj', function transportObj(data) {\n var id = data[0];\n var type = data[1];\n if (this.commonObjs.hasData(id)) {\n return;\n }\n\n switch (type) {\n case 'Font':\n var exportedData = data[2];\n\n var font;\n if ('error' in exportedData) {\n var error = exportedData.error;\n warn('Error during font loading: ' + error);\n this.commonObjs.resolve(id, error);\n break;\n } else {\n font = new FontFaceObject(exportedData);\n }\n\n FontLoader.bind(\n [font],\n function fontReady(fontObjs) {\n this.commonObjs.resolve(id, font);\n }.bind(this)\n );\n break;\n case 'FontPath':\n this.commonObjs.resolve(id, data[2]);\n break;\n default:\n error('Got unknown common object type ' + type);\n }\n }, this);\n\n messageHandler.on('obj', function transportObj(data) {\n var id = data[0];\n var pageIndex = data[1];\n var type = data[2];\n var pageProxy = this.pageCache[pageIndex];\n var imageData;\n if (pageProxy.objs.hasData(id)) {\n return;\n }\n\n switch (type) {\n case 'JpegStream':\n imageData = data[3];\n loadJpegStream(id, imageData, pageProxy.objs);\n break;\n case 'Image':\n imageData = data[3];\n pageProxy.objs.resolve(id, imageData);\n\n // heuristics that will allow not to store large data\n var MAX_IMAGE_SIZE_TO_STORE = 8000000;\n if (imageData && 'data' in imageData &&\n imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {\n pageProxy.cleanupAfterRender = true;\n }\n break;\n default:\n error('Got unknown object type ' + type);\n }\n }, this);\n\n messageHandler.on('DocProgress', function transportDocProgress(data) {\n var loadingTask = this.loadingTask;\n if (loadingTask.onProgress) {\n loadingTask.onProgress({\n loaded: data.loaded,\n total: data.total\n });\n }\n }, this);\n\n messageHandler.on('PageError', function transportError(data) {\n var page = this.pageCache[data.pageNum - 1];\n var intentState = page.intentStates[data.intent];\n if (intentState.displayReadyCapability) {\n intentState.displayReadyCapability.reject(data.error);\n } else {\n error(data.error);\n }\n }, this);\n\n messageHandler.on('JpegDecode', function(data) {\n var imageUrl = data[0];\n var components = data[1];\n if (components !== 3 && components !== 1) {\n return Promise.reject(\n new Error('Only 3 components or 1 component can be returned'));\n }\n\n return new Promise(function (resolve, reject) {\n var img = new Image();\n img.onload = function () {\n var width = img.width;\n var height = img.height;\n var size = width * height;\n var rgbaLength = size * 4;\n var buf = new Uint8Array(size * components);\n var tmpCanvas = createScratchCanvas(width, height);\n var tmpCtx = tmpCanvas.getContext('2d');\n tmpCtx.drawImage(img, 0, 0);\n var data = tmpCtx.getImageData(0, 0, width, height).data;\n var i, j;\n\n if (components === 3) {\n for (i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {\n buf[j] = data[i];\n buf[j + 1] = data[i + 1];\n buf[j + 2] = data[i + 2];\n }\n } else if (components === 1) {\n for (i = 0, j = 0; i < rgbaLength; i += 4, j++) {\n buf[j] = data[i];\n }\n }\n resolve({ data: buf, width: width, height: height});\n };\n img.onerror = function () {\n reject(new Error('JpegDecode failed to load image'));\n };\n img.src = imageUrl;\n });\n });\n },\n\n fetchDocument: function WorkerTransport_fetchDocument(loadingTask, source) {\n this.loadingTask = loadingTask;\n\n source.disableAutoFetch = PDFJS.disableAutoFetch;\n source.disableStream = PDFJS.disableStream;\n source.chunkedViewerLoading = !!this.pdfDataRangeTransport;\n if (this.pdfDataRangeTransport) {\n source.length = this.pdfDataRangeTransport.length;\n source.initialData = this.pdfDataRangeTransport.initialData;\n }\n this.messageHandler.send('GetDocRequest', {\n source: source,\n disableRange: PDFJS.disableRange,\n maxImageSize: PDFJS.maxImageSize,\n cMapUrl: PDFJS.cMapUrl,\n cMapPacked: PDFJS.cMapPacked,\n disableFontFace: PDFJS.disableFontFace,\n disableCreateObjectURL: PDFJS.disableCreateObjectURL,\n verbosity: PDFJS.verbosity\n });\n },\n\n getData: function WorkerTransport_getData() {\n return this.messageHandler.sendWithPromise('GetData', null);\n },\n\n getPage: function WorkerTransport_getPage(pageNumber, capability) {\n if (pageNumber <= 0 || pageNumber > this.numPages ||\n (pageNumber|0) !== pageNumber) {\n return Promise.reject(new Error('Invalid page request'));\n }\n\n var pageIndex = pageNumber - 1;\n if (pageIndex in this.pagePromises) {\n return this.pagePromises[pageIndex];\n }\n var promise = this.messageHandler.sendWithPromise('GetPage', {\n pageIndex: pageIndex\n }).then(function (pageInfo) {\n var page = new PDFPageProxy(pageIndex, pageInfo, this);\n this.pageCache[pageIndex] = page;\n return page;\n }.bind(this));\n this.pagePromises[pageIndex] = promise;\n return promise;\n },\n\n getPageIndex: function WorkerTransport_getPageIndexByRef(ref) {\n return this.messageHandler.sendWithPromise('GetPageIndex', { ref: ref });\n },\n\n getAnnotations: function WorkerTransport_getAnnotations(pageIndex) {\n return this.messageHandler.sendWithPromise('GetAnnotations',\n { pageIndex: pageIndex });\n },\n\n getDestinations: function WorkerTransport_getDestinations() {\n return this.messageHandler.sendWithPromise('GetDestinations', null);\n },\n\n getDestination: function WorkerTransport_getDestination(id) {\n return this.messageHandler.sendWithPromise('GetDestination', { id: id } );\n },\n\n getAttachments: function WorkerTransport_getAttachments() {\n return this.messageHandler.sendWithPromise('GetAttachments', null);\n },\n\n getJavaScript: function WorkerTransport_getJavaScript() {\n return this.messageHandler.sendWithPromise('GetJavaScript', null);\n },\n\n getOutline: function WorkerTransport_getOutline() {\n return this.messageHandler.sendWithPromise('GetOutline', null);\n },\n\n getMetadata: function WorkerTransport_getMetadata() {\n return this.messageHandler.sendWithPromise('GetMetadata', null).\n then(function transportMetadata(results) {\n return {\n info: results[0],\n metadata: (results[1] ? new PDFJS.Metadata(results[1]) : null)\n };\n });\n },\n\n getStats: function WorkerTransport_getStats() {\n return this.messageHandler.sendWithPromise('GetStats', null);\n },\n\n startCleanup: function WorkerTransport_startCleanup() {\n this.messageHandler.sendWithPromise('Cleanup', null).\n then(function endCleanup() {\n for (var i = 0, ii = this.pageCache.length; i < ii; i++) {\n var page = this.pageCache[i];\n if (page) {\n page.destroy();\n }\n }\n this.commonObjs.clear();\n FontLoader.clear();\n }.bind(this));\n }\n };\n return WorkerTransport;\n\n})();\n\n/**\n * A PDF document and page is built of many objects. E.g. there are objects\n * for fonts, images, rendering code and such. These objects might get processed\n * inside of a worker. The `PDFObjects` implements some basic functions to\n * manage these objects.\n * @ignore\n */\nvar PDFObjects = (function PDFObjectsClosure() {\n function PDFObjects() {\n this.objs = {};\n }\n\n PDFObjects.prototype = {\n /**\n * Internal function.\n * Ensures there is an object defined for `objId`.\n */\n ensureObj: function PDFObjects_ensureObj(objId) {\n if (this.objs[objId]) {\n return this.objs[objId];\n }\n\n var obj = {\n capability: createPromiseCapability(),\n data: null,\n resolved: false\n };\n this.objs[objId] = obj;\n\n return obj;\n },\n\n /**\n * If called *without* callback, this returns the data of `objId` but the\n * object needs to be resolved. If it isn't, this function throws.\n *\n * If called *with* a callback, the callback is called with the data of the\n * object once the object is resolved. That means, if you call this\n * function and the object is already resolved, the callback gets called\n * right away.\n */\n get: function PDFObjects_get(objId, callback) {\n // If there is a callback, then the get can be async and the object is\n // not required to be resolved right now\n if (callback) {\n this.ensureObj(objId).capability.promise.then(callback);\n return null;\n }\n\n // If there isn't a callback, the user expects to get the resolved data\n // directly.\n var obj = this.objs[objId];\n\n // If there isn't an object yet or the object isn't resolved, then the\n // data isn't ready yet!\n if (!obj || !obj.resolved) {\n error('Requesting object that isn\\'t resolved yet ' + objId);\n }\n\n return obj.data;\n },\n\n /**\n * Resolves the object `objId` with optional `data`.\n */\n resolve: function PDFObjects_resolve(objId, data) {\n var obj = this.ensureObj(objId);\n\n obj.resolved = true;\n obj.data = data;\n obj.capability.resolve(data);\n },\n\n isResolved: function PDFObjects_isResolved(objId) {\n var objs = this.objs;\n\n if (!objs[objId]) {\n return false;\n } else {\n return objs[objId].resolved;\n }\n },\n\n hasData: function PDFObjects_hasData(objId) {\n return this.isResolved(objId);\n },\n\n /**\n * Returns the data of `objId` if object exists, null otherwise.\n */\n getData: function PDFObjects_getData(objId) {\n var objs = this.objs;\n if (!objs[objId] || !objs[objId].resolved) {\n return null;\n } else {\n return objs[objId].data;\n }\n },\n\n clear: function PDFObjects_clear() {\n this.objs = {};\n }\n };\n return PDFObjects;\n})();\n\n/**\n * Allows controlling of the rendering tasks.\n * @class\n */\nvar RenderTask = (function RenderTaskClosure() {\n function RenderTask(internalRenderTask) {\n this._internalRenderTask = internalRenderTask;\n\n /**\n * Callback for incremental rendering -- a function that will be called\n * each time the rendering is paused. To continue rendering call the\n * function that is the first argument to the callback.\n * @type {function}\n */\n this.onContinue = null;\n }\n\n RenderTask.prototype = /** @lends RenderTask.prototype */ {\n /**\n * Promise for rendering task completion.\n * @return {Promise}\n */\n get promise() {\n return this._internalRenderTask.capability.promise;\n },\n\n /**\n * Cancels the rendering task. If the task is currently rendering it will\n * not be cancelled until graphics pauses with a timeout. The promise that\n * this object extends will resolved when cancelled.\n */\n cancel: function RenderTask_cancel() {\n this._internalRenderTask.cancel();\n },\n\n /**\n * Registers callbacks to indicate the rendering task completion.\n *\n * @param {function} onFulfilled The callback for the rendering completion.\n * @param {function} onRejected The callback for the rendering failure.\n * @return {Promise} A promise that is resolved after the onFulfilled or\n * onRejected callback.\n */\n then: function RenderTask_then(onFulfilled, onRejected) {\n return this.promise.then.apply(this.promise, arguments);\n }\n };\n\n return RenderTask;\n})();\n\n/**\n * For internal use only.\n * @ignore\n */\nvar InternalRenderTask = (function InternalRenderTaskClosure() {\n\n function InternalRenderTask(callback, params, objs, commonObjs, operatorList,\n pageNumber) {\n this.callback = callback;\n this.params = params;\n this.objs = objs;\n this.commonObjs = commonObjs;\n this.operatorListIdx = null;\n this.operatorList = operatorList;\n this.pageNumber = pageNumber;\n this.running = false;\n this.graphicsReadyCallback = null;\n this.graphicsReady = false;\n this.cancelled = false;\n this.capability = createPromiseCapability();\n this.task = new RenderTask(this);\n // caching this-bound methods\n this._continueBound = this._continue.bind(this);\n this._scheduleNextBound = this._scheduleNext.bind(this);\n this._nextBound = this._next.bind(this);\n }\n\n InternalRenderTask.prototype = {\n\n initalizeGraphics:\n function InternalRenderTask_initalizeGraphics(transparency) {\n\n if (this.cancelled) {\n return;\n }\n if (PDFJS.pdfBug && 'StepperManager' in globalScope &&\n globalScope.StepperManager.enabled) {\n this.stepper = globalScope.StepperManager.create(this.pageNumber - 1);\n this.stepper.init(this.operatorList);\n this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();\n }\n\n var params = this.params;\n this.gfx = new CanvasGraphics(params.canvasContext, this.commonObjs,\n this.objs, params.imageLayer);\n\n this.gfx.beginDrawing(params.viewport, transparency);\n this.operatorListIdx = 0;\n this.graphicsReady = true;\n if (this.graphicsReadyCallback) {\n this.graphicsReadyCallback();\n }\n },\n\n cancel: function InternalRenderTask_cancel() {\n this.running = false;\n this.cancelled = true;\n this.callback('cancelled');\n },\n\n operatorListChanged: function InternalRenderTask_operatorListChanged() {\n if (!this.graphicsReady) {\n if (!this.graphicsReadyCallback) {\n this.graphicsReadyCallback = this._continueBound;\n }\n return;\n }\n\n if (this.stepper) {\n this.stepper.updateOperatorList(this.operatorList);\n }\n\n if (this.running) {\n return;\n }\n this._continue();\n },\n\n _continue: function InternalRenderTask__continue() {\n this.running = true;\n if (this.cancelled) {\n return;\n }\n if (this.task.onContinue) {\n this.task.onContinue.call(this.task, this._scheduleNextBound);\n } else {\n this._scheduleNext();\n }\n },\n\n _scheduleNext: function InternalRenderTask__scheduleNext() {\n window.requestAnimationFrame(this._nextBound);\n },\n\n _next: function InternalRenderTask__next() {\n if (this.cancelled) {\n return;\n }\n this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList,\n this.operatorListIdx,\n this._continueBound,\n this.stepper);\n if (this.operatorListIdx === this.operatorList.argsArray.length) {\n this.running = false;\n if (this.operatorList.lastChunk) {\n this.gfx.endDrawing();\n this.callback();\n }\n }\n }\n\n };\n\n return InternalRenderTask;\n})();\n\n\nvar Metadata = PDFJS.Metadata = (function MetadataClosure() {\n function fixMetadata(meta) {\n return meta.replace(/>\\\\376\\\\377([^<]+)/g, function(all, codes) {\n var bytes = codes.replace(/\\\\([0-3])([0-7])([0-7])/g,\n function(code, d1, d2, d3) {\n return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);\n });\n var chars = '';\n for (var i = 0; i < bytes.length; i += 2) {\n var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);\n chars += code >= 32 && code < 127 && code !== 60 && code !== 62 &&\n code !== 38 && false ? String.fromCharCode(code) :\n '&#x' + (0x10000 + code).toString(16).substring(1) + ';';\n }\n return '>' + chars;\n });\n }\n\n function Metadata(meta) {\n if (typeof meta === 'string') {\n // Ghostscript produces invalid metadata\n meta = fixMetadata(meta);\n\n var parser = new DOMParser();\n meta = parser.parseFromString(meta, 'application/xml');\n } else if (!(meta instanceof Document)) {\n error('Metadata: Invalid metadata object');\n }\n\n this.metaDocument = meta;\n this.metadata = {};\n this.parse();\n }\n\n Metadata.prototype = {\n parse: function Metadata_parse() {\n var doc = this.metaDocument;\n var rdf = doc.documentElement;\n\n if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') { // Wrapped in \n \n
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