Repository: ruanyf/react-demos Branch: master Commit: 86ae6304ff36 Files: 27 Total size: 1.5 MB Directory structure: gitextract_79p0ubh_/ ├── .gitignore ├── README.md ├── build/ │ ├── prop-types.js │ ├── react-dom.development.js │ ├── react.development.js │ └── react.js ├── demo01/ │ └── index.html ├── demo02/ │ └── index.html ├── demo03/ │ └── index.html ├── demo04/ │ └── index.html ├── demo05/ │ └── index.html ├── demo06/ │ └── index.html ├── demo07/ │ └── index.html ├── demo08/ │ └── index.html ├── demo09/ │ └── index.html ├── demo10/ │ └── index.html ├── demo11/ │ └── index.html ├── demo12/ │ └── index.html └── demo13/ ├── .babelrc ├── README.md ├── app.js ├── browser.js ├── package.json ├── server.js └── src/ ├── app.js ├── browser.js └── server.js ================================================ FILE CONTENTS ================================================ ================================================ FILE: .gitignore ================================================ example/ node_modules ================================================ FILE: README.md ================================================ This is a collection of simple demos of React.js. These demos are purposely written in a simple and clear style. You will find no difficulty in following them to learn the powerful library. ## Related Projects - [Flux Demo](https://github.com/ruanyf/extremely-simple-flux-demo) - [Webpack Demos](https://github.com/ruanyf/webpack-demos) - [React Router Tutorial](https://github.com/reactjs/react-router-tutorial) - [CSS Modules Demos](https://github.com/ruanyf/css-modules-demos) - [React Testing Demo](https://github.com/ruanyf/react-testing-demo) - [A boilerplate for React-Babel-Webpack project](https://github.com/ruanyf/react-babel-webpack-boilerplate) ## How to use First, copy the repo into your disk. ```bash $ git clone git@github.com:ruanyf/react-demos.git ``` Then play with the source files under the repo's demo* directories. ## HTML Template ```html
``` ## Index 1. [Render JSX](#demo01-render-jsx) 1. [Use JavaScript in JSX](#demo02-use-javascript-in-jsx) 1. [Use array in JSX](#demo03-use-array-in-jsx) 1. [Define a component](#demo04-define-a-component) 1. [this.props.children](#demo05-thispropschildren) 1. [PropTypes](#demo06-proptypes) 1. [Finding a DOM node](#demo07-finding-a-dom-node) 1. [this.state](#demo08-thisstate) 1. [Form](#demo09-form) 1. [Component Lifecycle](#demo10-component-lifecycle) 1. [Ajax](#demo11-ajax) 1. [Display value from a Promise](#demo12-display-value-from-a-promise) 1. [Server-side rendering](#demo13-server-side-rendering) --- ## Demo01: Render JSX [demo](http://ruanyf.github.io/react-demos/demo01/) / [source](https://github.com/ruanyf/react-demos/blob/master/demo01/index.html) The template syntax in React is called [JSX](http://facebook.github.io/react/docs/displaying-data.html#jsx-syntax). JSX allows you to use HTML tags in JavaScript code. `ReactDOM.render()` is the method which translates JSX into HTML and renders it into the specified DOM node. ```js ReactDOM.render(

Hello, world!

, document.getElementById('example') ); ``` To actually perform the transformation in the browser, you must use `
``` ## Useful links - [React's official site](http://facebook.github.io/react) - [React's official examples](https://github.com/facebook/react/tree/master/examples) - [React (Virtual) DOM Terminology](http://facebook.github.io/react/docs/glossary.html), by Sebastian Markbåge - [The React Quick Start Guide](http://www.jackcallister.com/2015/01/05/the-react-quick-start-guide.html), by Jack Callister - [Learning React.js: Getting Started and Concepts](https://scotch.io/tutorials/learning-react-getting-started-and-concepts), by Ken Wheeler - [Getting started with React](http://ryanclark.me/getting-started-with-react), by Ryan Clark - [React JS Tutorial and Guide to the Gotchas](https://zapier.com/engineering/react-js-tutorial-guide-gotchas/), by Justin Deal - [React Primer](https://github.com/BinaryMuse/react-primer), by Binary Muse - [jQuery versus React.js thinking](http://blog.zigomir.com/react.js/jquery/2015/01/11/jquery-versus-react-thinking.html), by zigomir ## License BSD licensed ================================================ FILE: build/prop-types.js ================================================ (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.PropTypes = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o -1) ? invariant(false, 'EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `%s`.', pluginName) : void 0; if (plugins[pluginIndex]) { continue; } !pluginModule.extractEvents ? invariant(false, 'EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `%s` does not.', pluginName) : void 0; plugins[pluginIndex] = pluginModule; var publishedEvents = pluginModule.eventTypes; for (var eventName in publishedEvents) { !publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName) ? invariant(false, 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName) : void 0; } } } /** * Publishes an event so that it can be dispatched by the supplied plugin. * * @param {object} dispatchConfig Dispatch configuration for the event. * @param {object} PluginModule Plugin publishing the event. * @return {boolean} True if the event was successfully published. * @private */ function publishEventForPlugin(dispatchConfig, pluginModule, eventName) { !!eventNameDispatchConfigs.hasOwnProperty(eventName) ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same event name, `%s`.', eventName) : void 0; eventNameDispatchConfigs[eventName] = dispatchConfig; var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames; if (phasedRegistrationNames) { for (var phaseName in phasedRegistrationNames) { if (phasedRegistrationNames.hasOwnProperty(phaseName)) { var phasedRegistrationName = phasedRegistrationNames[phaseName]; publishRegistrationName(phasedRegistrationName, pluginModule, eventName); } } return true; } else if (dispatchConfig.registrationName) { publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName); return true; } return false; } /** * Publishes a registration name that is used to identify dispatched events. * * @param {string} registrationName Registration name to add. * @param {object} PluginModule Plugin publishing the event. * @private */ function publishRegistrationName(registrationName, pluginModule, eventName) { !!registrationNameModules[registrationName] ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same registration name, `%s`.', registrationName) : void 0; registrationNameModules[registrationName] = pluginModule; registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies; { var lowerCasedName = registrationName.toLowerCase(); possibleRegistrationNames[lowerCasedName] = registrationName; if (registrationName === 'onDoubleClick') { possibleRegistrationNames.ondblclick = registrationName; } } } /** * Registers plugins so that they can extract and dispatch events. * * @see {EventPluginHub} */ /** * Ordered list of injected plugins. */ var plugins = []; /** * Mapping from event name to dispatch config */ var eventNameDispatchConfigs = {}; /** * Mapping from registration name to plugin module */ var registrationNameModules = {}; /** * Mapping from registration name to event name */ var registrationNameDependencies = {}; /** * Mapping from lowercase registration names to the properly cased version, * used to warn in the case of missing event handlers. Available * only in true. * @type {Object} */ var possibleRegistrationNames = {}; // Trust the developer to only use possibleRegistrationNames in true /** * Injects an ordering of plugins (by plugin name). This allows the ordering * to be decoupled from injection of the actual plugins so that ordering is * always deterministic regardless of packaging, on-the-fly injection, etc. * * @param {array} InjectedEventPluginOrder * @internal * @see {EventPluginHub.injection.injectEventPluginOrder} */ function injectEventPluginOrder(injectedEventPluginOrder) { !!eventPluginOrder ? invariant(false, 'EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React.') : void 0; // Clone the ordering so it cannot be dynamically mutated. eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder); recomputePluginOrdering(); } /** * Injects plugins to be used by `EventPluginHub`. The plugin names must be * in the ordering injected by `injectEventPluginOrder`. * * Plugins can be injected as part of page initialization or on-the-fly. * * @param {object} injectedNamesToPlugins Map from names to plugin modules. * @internal * @see {EventPluginHub.injection.injectEventPluginsByName} */ function injectEventPluginsByName(injectedNamesToPlugins) { var isOrderingDirty = false; for (var pluginName in injectedNamesToPlugins) { if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) { continue; } var pluginModule = injectedNamesToPlugins[pluginName]; if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) { !!namesToPlugins[pluginName] ? invariant(false, 'EventPluginRegistry: Cannot inject two different event plugins using the same name, `%s`.', pluginName) : void 0; namesToPlugins[pluginName] = pluginModule; isOrderingDirty = true; } } if (isOrderingDirty) { recomputePluginOrdering(); } } /** * Similar to invariant but only logs a warning if the condition is not met. * This can be used to log issues in development environments in critical * paths. Removing the logging code for production environments will keep the * same logic and follow the same code paths. */ var warningWithoutStack = function () {}; { warningWithoutStack = function (condition, format) { for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) { args[_key - 2] = arguments[_key]; } if (format === undefined) { throw new Error('`warningWithoutStack(condition, format, ...args)` requires a warning ' + 'message argument'); } if (args.length > 8) { // Check before the condition to catch violations early. throw new Error('warningWithoutStack() currently supports at most 8 arguments.'); } if (condition) { return; } if (typeof console !== 'undefined') { var argsWithFormat = args.map(function (item) { return '' + item; }); argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it // breaks IE9: https://github.com/facebook/react/issues/13610 Function.prototype.apply.call(console.error, console, argsWithFormat); } try { // --- Welcome to debugging React --- // This error was thrown as a convenience so that you can use this stack // to find the callsite that caused this warning to fire. var argIndex = 0; var message = 'Warning: ' + format.replace(/%s/g, function () { return args[argIndex++]; }); throw new Error(message); } catch (x) {} }; } var warningWithoutStack$1 = warningWithoutStack; var getFiberCurrentPropsFromNode = null; var getInstanceFromNode = null; var getNodeFromInstance = null; function setComponentTree(getFiberCurrentPropsFromNodeImpl, getInstanceFromNodeImpl, getNodeFromInstanceImpl) { getFiberCurrentPropsFromNode = getFiberCurrentPropsFromNodeImpl; getInstanceFromNode = getInstanceFromNodeImpl; getNodeFromInstance = getNodeFromInstanceImpl; { !(getNodeFromInstance && getInstanceFromNode) ? warningWithoutStack$1(false, 'EventPluginUtils.setComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.') : void 0; } } var validateEventDispatches = void 0; { validateEventDispatches = function (event) { var dispatchListeners = event._dispatchListeners; var dispatchInstances = event._dispatchInstances; var listenersIsArr = Array.isArray(dispatchListeners); var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0; var instancesIsArr = Array.isArray(dispatchInstances); var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0; !(instancesIsArr === listenersIsArr && instancesLen === listenersLen) ? warningWithoutStack$1(false, 'EventPluginUtils: Invalid `event`.') : void 0; }; } /** * Dispatch the event to the listener. * @param {SyntheticEvent} event SyntheticEvent to handle * @param {function} listener Application-level callback * @param {*} inst Internal component instance */ function executeDispatch(event, listener, inst) { var type = event.type || 'unknown-event'; event.currentTarget = getNodeFromInstance(inst); invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event); event.currentTarget = null; } /** * Standard/simple iteration through an event's collected dispatches. */ function executeDispatchesInOrder(event) { var dispatchListeners = event._dispatchListeners; var dispatchInstances = event._dispatchInstances; { validateEventDispatches(event); } if (Array.isArray(dispatchListeners)) { for (var i = 0; i < dispatchListeners.length; i++) { if (event.isPropagationStopped()) { break; } // Listeners and Instances are two parallel arrays that are always in sync. executeDispatch(event, dispatchListeners[i], dispatchInstances[i]); } } else if (dispatchListeners) { executeDispatch(event, dispatchListeners, dispatchInstances); } event._dispatchListeners = null; event._dispatchInstances = null; } /** * @see executeDispatchesInOrderStopAtTrueImpl */ /** * Execution of a "direct" dispatch - there must be at most one dispatch * accumulated on the event or it is considered an error. It doesn't really make * sense for an event with multiple dispatches (bubbled) to keep track of the * return values at each dispatch execution, but it does tend to make sense when * dealing with "direct" dispatches. * * @return {*} The return value of executing the single dispatch. */ /** * @param {SyntheticEvent} event * @return {boolean} True iff number of dispatches accumulated is greater than 0. */ /** * Accumulates items that must not be null or undefined into the first one. This * is used to conserve memory by avoiding array allocations, and thus sacrifices * API cleanness. Since `current` can be null before being passed in and not * null after this function, make sure to assign it back to `current`: * * `a = accumulateInto(a, b);` * * This API should be sparingly used. Try `accumulate` for something cleaner. * * @return {*|array<*>} An accumulation of items. */ function accumulateInto(current, next) { !(next != null) ? invariant(false, 'accumulateInto(...): Accumulated items must not be null or undefined.') : void 0; if (current == null) { return next; } // Both are not empty. Warning: Never call x.concat(y) when you are not // certain that x is an Array (x could be a string with concat method). if (Array.isArray(current)) { if (Array.isArray(next)) { current.push.apply(current, next); return current; } current.push(next); return current; } if (Array.isArray(next)) { // A bit too dangerous to mutate `next`. return [current].concat(next); } return [current, next]; } /** * @param {array} arr an "accumulation" of items which is either an Array or * a single item. Useful when paired with the `accumulate` module. This is a * simple utility that allows us to reason about a collection of items, but * handling the case when there is exactly one item (and we do not need to * allocate an array). * @param {function} cb Callback invoked with each element or a collection. * @param {?} [scope] Scope used as `this` in a callback. */ function forEachAccumulated(arr, cb, scope) { if (Array.isArray(arr)) { arr.forEach(cb, scope); } else if (arr) { cb.call(scope, arr); } } /** * Internal queue of events that have accumulated their dispatches and are * waiting to have their dispatches executed. */ var eventQueue = null; /** * Dispatches an event and releases it back into the pool, unless persistent. * * @param {?object} event Synthetic event to be dispatched. * @private */ var executeDispatchesAndRelease = function (event) { if (event) { executeDispatchesInOrder(event); if (!event.isPersistent()) { event.constructor.release(event); } } }; var executeDispatchesAndReleaseTopLevel = function (e) { return executeDispatchesAndRelease(e); }; function isInteractive(tag) { return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea'; } function shouldPreventMouseEvent(name, type, props) { switch (name) { case 'onClick': case 'onClickCapture': case 'onDoubleClick': case 'onDoubleClickCapture': case 'onMouseDown': case 'onMouseDownCapture': case 'onMouseMove': case 'onMouseMoveCapture': case 'onMouseUp': case 'onMouseUpCapture': return !!(props.disabled && isInteractive(type)); default: return false; } } /** * This is a unified interface for event plugins to be installed and configured. * * Event plugins can implement the following properties: * * `extractEvents` {function(string, DOMEventTarget, string, object): *} * Required. When a top-level event is fired, this method is expected to * extract synthetic events that will in turn be queued and dispatched. * * `eventTypes` {object} * Optional, plugins that fire events must publish a mapping of registration * names that are used to register listeners. Values of this mapping must * be objects that contain `registrationName` or `phasedRegistrationNames`. * * `executeDispatch` {function(object, function, string)} * Optional, allows plugins to override how an event gets dispatched. By * default, the listener is simply invoked. * * Each plugin that is injected into `EventsPluginHub` is immediately operable. * * @public */ /** * Methods for injecting dependencies. */ var injection = { /** * @param {array} InjectedEventPluginOrder * @public */ injectEventPluginOrder: injectEventPluginOrder, /** * @param {object} injectedNamesToPlugins Map from names to plugin modules. */ injectEventPluginsByName: injectEventPluginsByName }; /** * @param {object} inst The instance, which is the source of events. * @param {string} registrationName Name of listener (e.g. `onClick`). * @return {?function} The stored callback. */ function getListener(inst, registrationName) { var listener = void 0; // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not // live here; needs to be moved to a better place soon var stateNode = inst.stateNode; if (!stateNode) { // Work in progress (ex: onload events in incremental mode). return null; } var props = getFiberCurrentPropsFromNode(stateNode); if (!props) { // Work in progress. return null; } listener = props[registrationName]; if (shouldPreventMouseEvent(registrationName, inst.type, props)) { return null; } !(!listener || typeof listener === 'function') ? invariant(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener) : void 0; return listener; } /** * Allows registered plugins an opportunity to extract events from top-level * native browser events. * * @return {*} An accumulation of synthetic events. * @internal */ function extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget) { var events = null; for (var i = 0; i < plugins.length; i++) { // Not every plugin in the ordering may be loaded at runtime. var possiblePlugin = plugins[i]; if (possiblePlugin) { var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget); if (extractedEvents) { events = accumulateInto(events, extractedEvents); } } } return events; } function runEventsInBatch(events) { if (events !== null) { eventQueue = accumulateInto(eventQueue, events); } // Set `eventQueue` to null before processing it so that we can tell if more // events get enqueued while processing. var processingEventQueue = eventQueue; eventQueue = null; if (!processingEventQueue) { return; } forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel); !!eventQueue ? invariant(false, 'processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.') : void 0; // This would be a good time to rethrow if any of the event handlers threw. rethrowCaughtError(); } function runExtractedEventsInBatch(topLevelType, targetInst, nativeEvent, nativeEventTarget) { var events = extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget); runEventsInBatch(events); } var FunctionComponent = 0; var ClassComponent = 1; var IndeterminateComponent = 2; // Before we know whether it is function or class var HostRoot = 3; // Root of a host tree. Could be nested inside another node. var HostPortal = 4; // A subtree. Could be an entry point to a different renderer. var HostComponent = 5; var HostText = 6; var Fragment = 7; var Mode = 8; var ContextConsumer = 9; var ContextProvider = 10; var ForwardRef = 11; var Profiler = 12; var SuspenseComponent = 13; var MemoComponent = 14; var SimpleMemoComponent = 15; var LazyComponent = 16; var IncompleteClassComponent = 17; var randomKey = Math.random().toString(36).slice(2); var internalInstanceKey = '__reactInternalInstance$' + randomKey; var internalEventHandlersKey = '__reactEventHandlers$' + randomKey; function precacheFiberNode(hostInst, node) { node[internalInstanceKey] = hostInst; } /** * Given a DOM node, return the closest ReactDOMComponent or * ReactDOMTextComponent instance ancestor. */ function getClosestInstanceFromNode(node) { if (node[internalInstanceKey]) { return node[internalInstanceKey]; } while (!node[internalInstanceKey]) { if (node.parentNode) { node = node.parentNode; } else { // Top of the tree. This node must not be part of a React tree (or is // unmounted, potentially). return null; } } var inst = node[internalInstanceKey]; if (inst.tag === HostComponent || inst.tag === HostText) { // In Fiber, this will always be the deepest root. return inst; } return null; } /** * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent * instance, or null if the node was not rendered by this React. */ function getInstanceFromNode$1(node) { var inst = node[internalInstanceKey]; if (inst) { if (inst.tag === HostComponent || inst.tag === HostText) { return inst; } else { return null; } } return null; } /** * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding * DOM node. */ function getNodeFromInstance$1(inst) { if (inst.tag === HostComponent || inst.tag === HostText) { // In Fiber this, is just the state node right now. We assume it will be // a host component or host text. return inst.stateNode; } // Without this first invariant, passing a non-DOM-component triggers the next // invariant for a missing parent, which is super confusing. invariant(false, 'getNodeFromInstance: Invalid argument.'); } function getFiberCurrentPropsFromNode$1(node) { return node[internalEventHandlersKey] || null; } function updateFiberProps(node, props) { node[internalEventHandlersKey] = props; } function getParent(inst) { do { inst = inst.return; // TODO: If this is a HostRoot we might want to bail out. // That is depending on if we want nested subtrees (layers) to bubble // events to their parent. We could also go through parentNode on the // host node but that wouldn't work for React Native and doesn't let us // do the portal feature. } while (inst && inst.tag !== HostComponent); if (inst) { return inst; } return null; } /** * Return the lowest common ancestor of A and B, or null if they are in * different trees. */ function getLowestCommonAncestor(instA, instB) { var depthA = 0; for (var tempA = instA; tempA; tempA = getParent(tempA)) { depthA++; } var depthB = 0; for (var tempB = instB; tempB; tempB = getParent(tempB)) { depthB++; } // If A is deeper, crawl up. while (depthA - depthB > 0) { instA = getParent(instA); depthA--; } // If B is deeper, crawl up. while (depthB - depthA > 0) { instB = getParent(instB); depthB--; } // Walk in lockstep until we find a match. var depth = depthA; while (depth--) { if (instA === instB || instA === instB.alternate) { return instA; } instA = getParent(instA); instB = getParent(instB); } return null; } /** * Return if A is an ancestor of B. */ /** * Return the parent instance of the passed-in instance. */ /** * Simulates the traversal of a two-phase, capture/bubble event dispatch. */ function traverseTwoPhase(inst, fn, arg) { var path = []; while (inst) { path.push(inst); inst = getParent(inst); } var i = void 0; for (i = path.length; i-- > 0;) { fn(path[i], 'captured', arg); } for (i = 0; i < path.length; i++) { fn(path[i], 'bubbled', arg); } } /** * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that * should would receive a `mouseEnter` or `mouseLeave` event. * * Does not invoke the callback on the nearest common ancestor because nothing * "entered" or "left" that element. */ function traverseEnterLeave(from, to, fn, argFrom, argTo) { var common = from && to ? getLowestCommonAncestor(from, to) : null; var pathFrom = []; while (true) { if (!from) { break; } if (from === common) { break; } var alternate = from.alternate; if (alternate !== null && alternate === common) { break; } pathFrom.push(from); from = getParent(from); } var pathTo = []; while (true) { if (!to) { break; } if (to === common) { break; } var _alternate = to.alternate; if (_alternate !== null && _alternate === common) { break; } pathTo.push(to); to = getParent(to); } for (var i = 0; i < pathFrom.length; i++) { fn(pathFrom[i], 'bubbled', argFrom); } for (var _i = pathTo.length; _i-- > 0;) { fn(pathTo[_i], 'captured', argTo); } } /** * Some event types have a notion of different registration names for different * "phases" of propagation. This finds listeners by a given phase. */ function listenerAtPhase(inst, event, propagationPhase) { var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase]; return getListener(inst, registrationName); } /** * A small set of propagation patterns, each of which will accept a small amount * of information, and generate a set of "dispatch ready event objects" - which * are sets of events that have already been annotated with a set of dispatched * listener functions/ids. The API is designed this way to discourage these * propagation strategies from actually executing the dispatches, since we * always want to collect the entire set of dispatches before executing even a * single one. */ /** * Tags a `SyntheticEvent` with dispatched listeners. Creating this function * here, allows us to not have to bind or create functions for each event. * Mutating the event's members allows us to not have to create a wrapping * "dispatch" object that pairs the event with the listener. */ function accumulateDirectionalDispatches(inst, phase, event) { { !inst ? warningWithoutStack$1(false, 'Dispatching inst must not be null') : void 0; } var listener = listenerAtPhase(inst, event, phase); if (listener) { event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); } } /** * Collect dispatches (must be entirely collected before dispatching - see unit * tests). Lazily allocate the array to conserve memory. We must loop through * each event and perform the traversal for each one. We cannot perform a * single traversal for the entire collection of events because each event may * have a different target. */ function accumulateTwoPhaseDispatchesSingle(event) { if (event && event.dispatchConfig.phasedRegistrationNames) { traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event); } } /** * Accumulates without regard to direction, does not look for phased * registration names. Same as `accumulateDirectDispatchesSingle` but without * requiring that the `dispatchMarker` be the same as the dispatched ID. */ function accumulateDispatches(inst, ignoredDirection, event) { if (inst && event && event.dispatchConfig.registrationName) { var registrationName = event.dispatchConfig.registrationName; var listener = getListener(inst, registrationName); if (listener) { event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); } } } /** * Accumulates dispatches on an `SyntheticEvent`, but only for the * `dispatchMarker`. * @param {SyntheticEvent} event */ function accumulateDirectDispatchesSingle(event) { if (event && event.dispatchConfig.registrationName) { accumulateDispatches(event._targetInst, null, event); } } function accumulateTwoPhaseDispatches(events) { forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle); } function accumulateEnterLeaveDispatches(leave, enter, from, to) { traverseEnterLeave(from, to, accumulateDispatches, leave, enter); } function accumulateDirectDispatches(events) { forEachAccumulated(events, accumulateDirectDispatchesSingle); } var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement); // Do not uses the below two methods directly! // Instead use constants exported from DOMTopLevelEventTypes in ReactDOM. // (It is the only module that is allowed to access these methods.) function unsafeCastStringToDOMTopLevelType(topLevelType) { return topLevelType; } function unsafeCastDOMTopLevelTypeToString(topLevelType) { return topLevelType; } /** * Generate a mapping of standard vendor prefixes using the defined style property and event name. * * @param {string} styleProp * @param {string} eventName * @returns {object} */ function makePrefixMap(styleProp, eventName) { var prefixes = {}; prefixes[styleProp.toLowerCase()] = eventName.toLowerCase(); prefixes['Webkit' + styleProp] = 'webkit' + eventName; prefixes['Moz' + styleProp] = 'moz' + eventName; return prefixes; } /** * A list of event names to a configurable list of vendor prefixes. */ var vendorPrefixes = { animationend: makePrefixMap('Animation', 'AnimationEnd'), animationiteration: makePrefixMap('Animation', 'AnimationIteration'), animationstart: makePrefixMap('Animation', 'AnimationStart'), transitionend: makePrefixMap('Transition', 'TransitionEnd') }; /** * Event names that have already been detected and prefixed (if applicable). */ var prefixedEventNames = {}; /** * Element to check for prefixes on. */ var style = {}; /** * Bootstrap if a DOM exists. */ if (canUseDOM) { style = document.createElement('div').style; // On some platforms, in particular some releases of Android 4.x, // the un-prefixed "animation" and "transition" properties are defined on the // style object but the events that fire will still be prefixed, so we need // to check if the un-prefixed events are usable, and if not remove them from the map. if (!('AnimationEvent' in window)) { delete vendorPrefixes.animationend.animation; delete vendorPrefixes.animationiteration.animation; delete vendorPrefixes.animationstart.animation; } // Same as above if (!('TransitionEvent' in window)) { delete vendorPrefixes.transitionend.transition; } } /** * Attempts to determine the correct vendor prefixed event name. * * @param {string} eventName * @returns {string} */ function getVendorPrefixedEventName(eventName) { if (prefixedEventNames[eventName]) { return prefixedEventNames[eventName]; } else if (!vendorPrefixes[eventName]) { return eventName; } var prefixMap = vendorPrefixes[eventName]; for (var styleProp in prefixMap) { if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) { return prefixedEventNames[eventName] = prefixMap[styleProp]; } } return eventName; } /** * To identify top level events in ReactDOM, we use constants defined by this * module. This is the only module that uses the unsafe* methods to express * that the constants actually correspond to the browser event names. This lets * us save some bundle size by avoiding a top level type -> event name map. * The rest of ReactDOM code should import top level types from this file. */ var TOP_ABORT = unsafeCastStringToDOMTopLevelType('abort'); var TOP_ANIMATION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationend')); var TOP_ANIMATION_ITERATION = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationiteration')); var TOP_ANIMATION_START = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('animationstart')); var TOP_BLUR = unsafeCastStringToDOMTopLevelType('blur'); var TOP_CAN_PLAY = unsafeCastStringToDOMTopLevelType('canplay'); var TOP_CAN_PLAY_THROUGH = unsafeCastStringToDOMTopLevelType('canplaythrough'); var TOP_CANCEL = unsafeCastStringToDOMTopLevelType('cancel'); var TOP_CHANGE = unsafeCastStringToDOMTopLevelType('change'); var TOP_CLICK = unsafeCastStringToDOMTopLevelType('click'); var TOP_CLOSE = unsafeCastStringToDOMTopLevelType('close'); var TOP_COMPOSITION_END = unsafeCastStringToDOMTopLevelType('compositionend'); var TOP_COMPOSITION_START = unsafeCastStringToDOMTopLevelType('compositionstart'); var TOP_COMPOSITION_UPDATE = unsafeCastStringToDOMTopLevelType('compositionupdate'); var TOP_CONTEXT_MENU = unsafeCastStringToDOMTopLevelType('contextmenu'); var TOP_COPY = unsafeCastStringToDOMTopLevelType('copy'); var TOP_CUT = unsafeCastStringToDOMTopLevelType('cut'); var TOP_DOUBLE_CLICK = unsafeCastStringToDOMTopLevelType('dblclick'); var TOP_AUX_CLICK = unsafeCastStringToDOMTopLevelType('auxclick'); var TOP_DRAG = unsafeCastStringToDOMTopLevelType('drag'); var TOP_DRAG_END = unsafeCastStringToDOMTopLevelType('dragend'); var TOP_DRAG_ENTER = unsafeCastStringToDOMTopLevelType('dragenter'); var TOP_DRAG_EXIT = unsafeCastStringToDOMTopLevelType('dragexit'); var TOP_DRAG_LEAVE = unsafeCastStringToDOMTopLevelType('dragleave'); var TOP_DRAG_OVER = unsafeCastStringToDOMTopLevelType('dragover'); var TOP_DRAG_START = unsafeCastStringToDOMTopLevelType('dragstart'); var TOP_DROP = unsafeCastStringToDOMTopLevelType('drop'); var TOP_DURATION_CHANGE = unsafeCastStringToDOMTopLevelType('durationchange'); var TOP_EMPTIED = unsafeCastStringToDOMTopLevelType('emptied'); var TOP_ENCRYPTED = unsafeCastStringToDOMTopLevelType('encrypted'); var TOP_ENDED = unsafeCastStringToDOMTopLevelType('ended'); var TOP_ERROR = unsafeCastStringToDOMTopLevelType('error'); var TOP_FOCUS = unsafeCastStringToDOMTopLevelType('focus'); var TOP_GOT_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('gotpointercapture'); var TOP_INPUT = unsafeCastStringToDOMTopLevelType('input'); var TOP_INVALID = unsafeCastStringToDOMTopLevelType('invalid'); var TOP_KEY_DOWN = unsafeCastStringToDOMTopLevelType('keydown'); var TOP_KEY_PRESS = unsafeCastStringToDOMTopLevelType('keypress'); var TOP_KEY_UP = unsafeCastStringToDOMTopLevelType('keyup'); var TOP_LOAD = unsafeCastStringToDOMTopLevelType('load'); var TOP_LOAD_START = unsafeCastStringToDOMTopLevelType('loadstart'); var TOP_LOADED_DATA = unsafeCastStringToDOMTopLevelType('loadeddata'); var TOP_LOADED_METADATA = unsafeCastStringToDOMTopLevelType('loadedmetadata'); var TOP_LOST_POINTER_CAPTURE = unsafeCastStringToDOMTopLevelType('lostpointercapture'); var TOP_MOUSE_DOWN = unsafeCastStringToDOMTopLevelType('mousedown'); var TOP_MOUSE_MOVE = unsafeCastStringToDOMTopLevelType('mousemove'); var TOP_MOUSE_OUT = unsafeCastStringToDOMTopLevelType('mouseout'); var TOP_MOUSE_OVER = unsafeCastStringToDOMTopLevelType('mouseover'); var TOP_MOUSE_UP = unsafeCastStringToDOMTopLevelType('mouseup'); var TOP_PASTE = unsafeCastStringToDOMTopLevelType('paste'); var TOP_PAUSE = unsafeCastStringToDOMTopLevelType('pause'); var TOP_PLAY = unsafeCastStringToDOMTopLevelType('play'); var TOP_PLAYING = unsafeCastStringToDOMTopLevelType('playing'); var TOP_POINTER_CANCEL = unsafeCastStringToDOMTopLevelType('pointercancel'); var TOP_POINTER_DOWN = unsafeCastStringToDOMTopLevelType('pointerdown'); var TOP_POINTER_MOVE = unsafeCastStringToDOMTopLevelType('pointermove'); var TOP_POINTER_OUT = unsafeCastStringToDOMTopLevelType('pointerout'); var TOP_POINTER_OVER = unsafeCastStringToDOMTopLevelType('pointerover'); var TOP_POINTER_UP = unsafeCastStringToDOMTopLevelType('pointerup'); var TOP_PROGRESS = unsafeCastStringToDOMTopLevelType('progress'); var TOP_RATE_CHANGE = unsafeCastStringToDOMTopLevelType('ratechange'); var TOP_RESET = unsafeCastStringToDOMTopLevelType('reset'); var TOP_SCROLL = unsafeCastStringToDOMTopLevelType('scroll'); var TOP_SEEKED = unsafeCastStringToDOMTopLevelType('seeked'); var TOP_SEEKING = unsafeCastStringToDOMTopLevelType('seeking'); var TOP_SELECTION_CHANGE = unsafeCastStringToDOMTopLevelType('selectionchange'); var TOP_STALLED = unsafeCastStringToDOMTopLevelType('stalled'); var TOP_SUBMIT = unsafeCastStringToDOMTopLevelType('submit'); var TOP_SUSPEND = unsafeCastStringToDOMTopLevelType('suspend'); var TOP_TEXT_INPUT = unsafeCastStringToDOMTopLevelType('textInput'); var TOP_TIME_UPDATE = unsafeCastStringToDOMTopLevelType('timeupdate'); var TOP_TOGGLE = unsafeCastStringToDOMTopLevelType('toggle'); var TOP_TOUCH_CANCEL = unsafeCastStringToDOMTopLevelType('touchcancel'); var TOP_TOUCH_END = unsafeCastStringToDOMTopLevelType('touchend'); var TOP_TOUCH_MOVE = unsafeCastStringToDOMTopLevelType('touchmove'); var TOP_TOUCH_START = unsafeCastStringToDOMTopLevelType('touchstart'); var TOP_TRANSITION_END = unsafeCastStringToDOMTopLevelType(getVendorPrefixedEventName('transitionend')); var TOP_VOLUME_CHANGE = unsafeCastStringToDOMTopLevelType('volumechange'); var TOP_WAITING = unsafeCastStringToDOMTopLevelType('waiting'); var TOP_WHEEL = unsafeCastStringToDOMTopLevelType('wheel'); // List of events that need to be individually attached to media elements. // Note that events in this list will *not* be listened to at the top level // unless they're explicitly whitelisted in `ReactBrowserEventEmitter.listenTo`. var mediaEventTypes = [TOP_ABORT, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_VOLUME_CHANGE, TOP_WAITING]; function getRawEventName(topLevelType) { return unsafeCastDOMTopLevelTypeToString(topLevelType); } /** * These variables store information about text content of a target node, * allowing comparison of content before and after a given event. * * Identify the node where selection currently begins, then observe * both its text content and its current position in the DOM. Since the * browser may natively replace the target node during composition, we can * use its position to find its replacement. * * */ var root = null; var startText = null; var fallbackText = null; function initialize(nativeEventTarget) { root = nativeEventTarget; startText = getText(); return true; } function reset() { root = null; startText = null; fallbackText = null; } function getData() { if (fallbackText) { return fallbackText; } var start = void 0; var startValue = startText; var startLength = startValue.length; var end = void 0; var endValue = getText(); var endLength = endValue.length; for (start = 0; start < startLength; start++) { if (startValue[start] !== endValue[start]) { break; } } var minEnd = startLength - start; for (end = 1; end <= minEnd; end++) { if (startValue[startLength - end] !== endValue[endLength - end]) { break; } } var sliceTail = end > 1 ? 1 - end : undefined; fallbackText = endValue.slice(start, sliceTail); return fallbackText; } function getText() { if ('value' in root) { return root.value; } return root.textContent; } var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; var _assign = ReactInternals.assign; /* eslint valid-typeof: 0 */ var EVENT_POOL_SIZE = 10; /** * @interface Event * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var EventInterface = { type: null, target: null, // currentTarget is set when dispatching; no use in copying it here currentTarget: function () { return null; }, eventPhase: null, bubbles: null, cancelable: null, timeStamp: function (event) { return event.timeStamp || Date.now(); }, defaultPrevented: null, isTrusted: null }; function functionThatReturnsTrue() { return true; } function functionThatReturnsFalse() { return false; } /** * Synthetic events are dispatched by event plugins, typically in response to a * top-level event delegation handler. * * These systems should generally use pooling to reduce the frequency of garbage * collection. The system should check `isPersistent` to determine whether the * event should be released into the pool after being dispatched. Users that * need a persisted event should invoke `persist`. * * Synthetic events (and subclasses) implement the DOM Level 3 Events API by * normalizing browser quirks. Subclasses do not necessarily have to implement a * DOM interface; custom application-specific events can also subclass this. * * @param {object} dispatchConfig Configuration used to dispatch this event. * @param {*} targetInst Marker identifying the event target. * @param {object} nativeEvent Native browser event. * @param {DOMEventTarget} nativeEventTarget Target node. */ function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) { { // these have a getter/setter for warnings delete this.nativeEvent; delete this.preventDefault; delete this.stopPropagation; delete this.isDefaultPrevented; delete this.isPropagationStopped; } this.dispatchConfig = dispatchConfig; this._targetInst = targetInst; this.nativeEvent = nativeEvent; var Interface = this.constructor.Interface; for (var propName in Interface) { if (!Interface.hasOwnProperty(propName)) { continue; } { delete this[propName]; // this has a getter/setter for warnings } var normalize = Interface[propName]; if (normalize) { this[propName] = normalize(nativeEvent); } else { if (propName === 'target') { this.target = nativeEventTarget; } else { this[propName] = nativeEvent[propName]; } } } var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false; if (defaultPrevented) { this.isDefaultPrevented = functionThatReturnsTrue; } else { this.isDefaultPrevented = functionThatReturnsFalse; } this.isPropagationStopped = functionThatReturnsFalse; return this; } _assign(SyntheticEvent.prototype, { preventDefault: function () { this.defaultPrevented = true; var event = this.nativeEvent; if (!event) { return; } if (event.preventDefault) { event.preventDefault(); } else if (typeof event.returnValue !== 'unknown') { event.returnValue = false; } this.isDefaultPrevented = functionThatReturnsTrue; }, stopPropagation: function () { var event = this.nativeEvent; if (!event) { return; } if (event.stopPropagation) { event.stopPropagation(); } else if (typeof event.cancelBubble !== 'unknown') { // The ChangeEventPlugin registers a "propertychange" event for // IE. This event does not support bubbling or cancelling, and // any references to cancelBubble throw "Member not found". A // typeof check of "unknown" circumvents this issue (and is also // IE specific). event.cancelBubble = true; } this.isPropagationStopped = functionThatReturnsTrue; }, /** * We release all dispatched `SyntheticEvent`s after each event loop, adding * them back into the pool. This allows a way to hold onto a reference that * won't be added back into the pool. */ persist: function () { this.isPersistent = functionThatReturnsTrue; }, /** * Checks if this event should be released back into the pool. * * @return {boolean} True if this should not be released, false otherwise. */ isPersistent: functionThatReturnsFalse, /** * `PooledClass` looks for `destructor` on each instance it releases. */ destructor: function () { var Interface = this.constructor.Interface; for (var propName in Interface) { { Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName])); } } this.dispatchConfig = null; this._targetInst = null; this.nativeEvent = null; this.isDefaultPrevented = functionThatReturnsFalse; this.isPropagationStopped = functionThatReturnsFalse; this._dispatchListeners = null; this._dispatchInstances = null; { Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null)); Object.defineProperty(this, 'isDefaultPrevented', getPooledWarningPropertyDefinition('isDefaultPrevented', functionThatReturnsFalse)); Object.defineProperty(this, 'isPropagationStopped', getPooledWarningPropertyDefinition('isPropagationStopped', functionThatReturnsFalse)); Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', function () {})); Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', function () {})); } } }); SyntheticEvent.Interface = EventInterface; /** * Helper to reduce boilerplate when creating subclasses. */ SyntheticEvent.extend = function (Interface) { var Super = this; var E = function () {}; E.prototype = Super.prototype; var prototype = new E(); function Class() { return Super.apply(this, arguments); } _assign(prototype, Class.prototype); Class.prototype = prototype; Class.prototype.constructor = Class; Class.Interface = _assign({}, Super.Interface, Interface); Class.extend = Super.extend; addEventPoolingTo(Class); return Class; }; addEventPoolingTo(SyntheticEvent); /** * Helper to nullify syntheticEvent instance properties when destructing * * @param {String} propName * @param {?object} getVal * @return {object} defineProperty object */ function getPooledWarningPropertyDefinition(propName, getVal) { var isFunction = typeof getVal === 'function'; return { configurable: true, set: set, get: get }; function set(val) { var action = isFunction ? 'setting the method' : 'setting the property'; warn(action, 'This is effectively a no-op'); return val; } function get() { var action = isFunction ? 'accessing the method' : 'accessing the property'; var result = isFunction ? 'This is a no-op function' : 'This is set to null'; warn(action, result); return getVal; } function warn(action, result) { var warningCondition = false; !warningCondition ? warningWithoutStack$1(false, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result) : void 0; } } function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) { var EventConstructor = this; if (EventConstructor.eventPool.length) { var instance = EventConstructor.eventPool.pop(); EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst); return instance; } return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst); } function releasePooledEvent(event) { var EventConstructor = this; !(event instanceof EventConstructor) ? invariant(false, 'Trying to release an event instance into a pool of a different type.') : void 0; event.destructor(); if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) { EventConstructor.eventPool.push(event); } } function addEventPoolingTo(EventConstructor) { EventConstructor.eventPool = []; EventConstructor.getPooled = getPooledEvent; EventConstructor.release = releasePooledEvent; } /** * @interface Event * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents */ var SyntheticCompositionEvent = SyntheticEvent.extend({ data: null }); /** * @interface Event * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105 * /#events-inputevents */ var SyntheticInputEvent = SyntheticEvent.extend({ data: null }); var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space var START_KEYCODE = 229; var canUseCompositionEvent = canUseDOM && 'CompositionEvent' in window; var documentMode = null; if (canUseDOM && 'documentMode' in document) { documentMode = document.documentMode; } // Webkit offers a very useful `textInput` event that can be used to // directly represent `beforeInput`. The IE `textinput` event is not as // useful, so we don't use it. var canUseTextInputEvent = canUseDOM && 'TextEvent' in window && !documentMode; // In IE9+, we have access to composition events, but the data supplied // by the native compositionend event may be incorrect. Japanese ideographic // spaces, for instance (\u3000) are not recorded correctly. var useFallbackCompositionData = canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11); var SPACEBAR_CODE = 32; var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE); // Events and their corresponding property names. var eventTypes = { beforeInput: { phasedRegistrationNames: { bubbled: 'onBeforeInput', captured: 'onBeforeInputCapture' }, dependencies: [TOP_COMPOSITION_END, TOP_KEY_PRESS, TOP_TEXT_INPUT, TOP_PASTE] }, compositionEnd: { phasedRegistrationNames: { bubbled: 'onCompositionEnd', captured: 'onCompositionEndCapture' }, dependencies: [TOP_BLUR, TOP_COMPOSITION_END, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN] }, compositionStart: { phasedRegistrationNames: { bubbled: 'onCompositionStart', captured: 'onCompositionStartCapture' }, dependencies: [TOP_BLUR, TOP_COMPOSITION_START, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN] }, compositionUpdate: { phasedRegistrationNames: { bubbled: 'onCompositionUpdate', captured: 'onCompositionUpdateCapture' }, dependencies: [TOP_BLUR, TOP_COMPOSITION_UPDATE, TOP_KEY_DOWN, TOP_KEY_PRESS, TOP_KEY_UP, TOP_MOUSE_DOWN] } }; // Track whether we've ever handled a keypress on the space key. var hasSpaceKeypress = false; /** * Return whether a native keypress event is assumed to be a command. * This is required because Firefox fires `keypress` events for key commands * (cut, copy, select-all, etc.) even though no character is inserted. */ function isKeypressCommand(nativeEvent) { return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) && // ctrlKey && altKey is equivalent to AltGr, and is not a command. !(nativeEvent.ctrlKey && nativeEvent.altKey); } /** * Translate native top level events into event types. * * @param {string} topLevelType * @return {object} */ function getCompositionEventType(topLevelType) { switch (topLevelType) { case TOP_COMPOSITION_START: return eventTypes.compositionStart; case TOP_COMPOSITION_END: return eventTypes.compositionEnd; case TOP_COMPOSITION_UPDATE: return eventTypes.compositionUpdate; } } /** * Does our fallback best-guess model think this event signifies that * composition has begun? * * @param {string} topLevelType * @param {object} nativeEvent * @return {boolean} */ function isFallbackCompositionStart(topLevelType, nativeEvent) { return topLevelType === TOP_KEY_DOWN && nativeEvent.keyCode === START_KEYCODE; } /** * Does our fallback mode think that this event is the end of composition? * * @param {string} topLevelType * @param {object} nativeEvent * @return {boolean} */ function isFallbackCompositionEnd(topLevelType, nativeEvent) { switch (topLevelType) { case TOP_KEY_UP: // Command keys insert or clear IME input. return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1; case TOP_KEY_DOWN: // Expect IME keyCode on each keydown. If we get any other // code we must have exited earlier. return nativeEvent.keyCode !== START_KEYCODE; case TOP_KEY_PRESS: case TOP_MOUSE_DOWN: case TOP_BLUR: // Events are not possible without cancelling IME. return true; default: return false; } } /** * Google Input Tools provides composition data via a CustomEvent, * with the `data` property populated in the `detail` object. If this * is available on the event object, use it. If not, this is a plain * composition event and we have nothing special to extract. * * @param {object} nativeEvent * @return {?string} */ function getDataFromCustomEvent(nativeEvent) { var detail = nativeEvent.detail; if (typeof detail === 'object' && 'data' in detail) { return detail.data; } return null; } /** * Check if a composition event was triggered by Korean IME. * Our fallback mode does not work well with IE's Korean IME, * so just use native composition events when Korean IME is used. * Although CompositionEvent.locale property is deprecated, * it is available in IE, where our fallback mode is enabled. * * @param {object} nativeEvent * @return {boolean} */ function isUsingKoreanIME(nativeEvent) { return nativeEvent.locale === 'ko'; } // Track the current IME composition status, if any. var isComposing = false; /** * @return {?object} A SyntheticCompositionEvent. */ function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) { var eventType = void 0; var fallbackData = void 0; if (canUseCompositionEvent) { eventType = getCompositionEventType(topLevelType); } else if (!isComposing) { if (isFallbackCompositionStart(topLevelType, nativeEvent)) { eventType = eventTypes.compositionStart; } } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) { eventType = eventTypes.compositionEnd; } if (!eventType) { return null; } if (useFallbackCompositionData && !isUsingKoreanIME(nativeEvent)) { // The current composition is stored statically and must not be // overwritten while composition continues. if (!isComposing && eventType === eventTypes.compositionStart) { isComposing = initialize(nativeEventTarget); } else if (eventType === eventTypes.compositionEnd) { if (isComposing) { fallbackData = getData(); } } } var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget); if (fallbackData) { // Inject data generated from fallback path into the synthetic event. // This matches the property of native CompositionEventInterface. event.data = fallbackData; } else { var customData = getDataFromCustomEvent(nativeEvent); if (customData !== null) { event.data = customData; } } accumulateTwoPhaseDispatches(event); return event; } /** * @param {TopLevelType} topLevelType Number from `TopLevelType`. * @param {object} nativeEvent Native browser event. * @return {?string} The string corresponding to this `beforeInput` event. */ function getNativeBeforeInputChars(topLevelType, nativeEvent) { switch (topLevelType) { case TOP_COMPOSITION_END: return getDataFromCustomEvent(nativeEvent); case TOP_KEY_PRESS: /** * If native `textInput` events are available, our goal is to make * use of them. However, there is a special case: the spacebar key. * In Webkit, preventing default on a spacebar `textInput` event * cancels character insertion, but it *also* causes the browser * to fall back to its default spacebar behavior of scrolling the * page. * * Tracking at: * https://code.google.com/p/chromium/issues/detail?id=355103 * * To avoid this issue, use the keypress event as if no `textInput` * event is available. */ var which = nativeEvent.which; if (which !== SPACEBAR_CODE) { return null; } hasSpaceKeypress = true; return SPACEBAR_CHAR; case TOP_TEXT_INPUT: // Record the characters to be added to the DOM. var chars = nativeEvent.data; // If it's a spacebar character, assume that we have already handled // it at the keypress level and bail immediately. Android Chrome // doesn't give us keycodes, so we need to ignore it. if (chars === SPACEBAR_CHAR && hasSpaceKeypress) { return null; } return chars; default: // For other native event types, do nothing. return null; } } /** * For browsers that do not provide the `textInput` event, extract the * appropriate string to use for SyntheticInputEvent. * * @param {number} topLevelType Number from `TopLevelEventTypes`. * @param {object} nativeEvent Native browser event. * @return {?string} The fallback string for this `beforeInput` event. */ function getFallbackBeforeInputChars(topLevelType, nativeEvent) { // If we are currently composing (IME) and using a fallback to do so, // try to extract the composed characters from the fallback object. // If composition event is available, we extract a string only at // compositionevent, otherwise extract it at fallback events. if (isComposing) { if (topLevelType === TOP_COMPOSITION_END || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) { var chars = getData(); reset(); isComposing = false; return chars; } return null; } switch (topLevelType) { case TOP_PASTE: // If a paste event occurs after a keypress, throw out the input // chars. Paste events should not lead to BeforeInput events. return null; case TOP_KEY_PRESS: /** * As of v27, Firefox may fire keypress events even when no character * will be inserted. A few possibilities: * * - `which` is `0`. Arrow keys, Esc key, etc. * * - `which` is the pressed key code, but no char is available. * Ex: 'AltGr + d` in Polish. There is no modified character for * this key combination and no character is inserted into the * document, but FF fires the keypress for char code `100` anyway. * No `input` event will occur. * * - `which` is the pressed key code, but a command combination is * being used. Ex: `Cmd+C`. No character is inserted, and no * `input` event will occur. */ if (!isKeypressCommand(nativeEvent)) { // IE fires the `keypress` event when a user types an emoji via // Touch keyboard of Windows. In such a case, the `char` property // holds an emoji character like `\uD83D\uDE0A`. Because its length // is 2, the property `which` does not represent an emoji correctly. // In such a case, we directly return the `char` property instead of // using `which`. if (nativeEvent.char && nativeEvent.char.length > 1) { return nativeEvent.char; } else if (nativeEvent.which) { return String.fromCharCode(nativeEvent.which); } } return null; case TOP_COMPOSITION_END: return useFallbackCompositionData && !isUsingKoreanIME(nativeEvent) ? null : nativeEvent.data; default: return null; } } /** * Extract a SyntheticInputEvent for `beforeInput`, based on either native * `textInput` or fallback behavior. * * @return {?object} A SyntheticInputEvent. */ function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) { var chars = void 0; if (canUseTextInputEvent) { chars = getNativeBeforeInputChars(topLevelType, nativeEvent); } else { chars = getFallbackBeforeInputChars(topLevelType, nativeEvent); } // If no characters are being inserted, no BeforeInput event should // be fired. if (!chars) { return null; } var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget); event.data = chars; accumulateTwoPhaseDispatches(event); return event; } /** * Create an `onBeforeInput` event to match * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents. * * This event plugin is based on the native `textInput` event * available in Chrome, Safari, Opera, and IE. This event fires after * `onKeyPress` and `onCompositionEnd`, but before `onInput`. * * `beforeInput` is spec'd but not implemented in any browsers, and * the `input` event does not provide any useful information about what has * actually been added, contrary to the spec. Thus, `textInput` is the best * available event to identify the characters that have actually been inserted * into the target node. * * This plugin is also responsible for emitting `composition` events, thus * allowing us to share composition fallback code for both `beforeInput` and * `composition` event types. */ var BeforeInputEventPlugin = { eventTypes: eventTypes, extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { var composition = extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget); var beforeInput = extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget); if (composition === null) { return beforeInput; } if (beforeInput === null) { return composition; } return [composition, beforeInput]; } }; // Use to restore controlled state after a change event has fired. var restoreImpl = null; var restoreTarget = null; var restoreQueue = null; function restoreStateOfTarget(target) { // We perform this translation at the end of the event loop so that we // always receive the correct fiber here var internalInstance = getInstanceFromNode(target); if (!internalInstance) { // Unmounted return; } !(typeof restoreImpl === 'function') ? invariant(false, 'setRestoreImplementation() needs to be called to handle a target for controlled events. This error is likely caused by a bug in React. Please file an issue.') : void 0; var props = getFiberCurrentPropsFromNode(internalInstance.stateNode); restoreImpl(internalInstance.stateNode, internalInstance.type, props); } function setRestoreImplementation(impl) { restoreImpl = impl; } function enqueueStateRestore(target) { if (restoreTarget) { if (restoreQueue) { restoreQueue.push(target); } else { restoreQueue = [target]; } } else { restoreTarget = target; } } function needsStateRestore() { return restoreTarget !== null || restoreQueue !== null; } function restoreStateIfNeeded() { if (!restoreTarget) { return; } var target = restoreTarget; var queuedTargets = restoreQueue; restoreTarget = null; restoreQueue = null; restoreStateOfTarget(target); if (queuedTargets) { for (var i = 0; i < queuedTargets.length; i++) { restoreStateOfTarget(queuedTargets[i]); } } } // Used as a way to call batchedUpdates when we don't have a reference to // the renderer. Such as when we're dispatching events or if third party // libraries need to call batchedUpdates. Eventually, this API will go away when // everything is batched by default. We'll then have a similar API to opt-out of // scheduled work and instead do synchronous work. // Defaults var _batchedUpdatesImpl = function (fn, bookkeeping) { return fn(bookkeeping); }; var _interactiveUpdatesImpl = function (fn, a, b) { return fn(a, b); }; var _flushInteractiveUpdatesImpl = function () {}; var isBatching = false; function batchedUpdates(fn, bookkeeping) { if (isBatching) { // If we are currently inside another batch, we need to wait until it // fully completes before restoring state. return fn(bookkeeping); } isBatching = true; try { return _batchedUpdatesImpl(fn, bookkeeping); } finally { // Here we wait until all updates have propagated, which is important // when using controlled components within layers: // https://github.com/facebook/react/issues/1698 // Then we restore state of any controlled component. isBatching = false; var controlledComponentsHavePendingUpdates = needsStateRestore(); if (controlledComponentsHavePendingUpdates) { // If a controlled event was fired, we may need to restore the state of // the DOM node back to the controlled value. This is necessary when React // bails out of the update without touching the DOM. _flushInteractiveUpdatesImpl(); restoreStateIfNeeded(); } } } function interactiveUpdates(fn, a, b) { return _interactiveUpdatesImpl(fn, a, b); } function setBatchingImplementation(batchedUpdatesImpl, interactiveUpdatesImpl, flushInteractiveUpdatesImpl) { _batchedUpdatesImpl = batchedUpdatesImpl; _interactiveUpdatesImpl = interactiveUpdatesImpl; _flushInteractiveUpdatesImpl = flushInteractiveUpdatesImpl; } /** * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary */ var supportedInputTypes = { color: true, date: true, datetime: true, 'datetime-local': true, email: true, month: true, number: true, password: true, range: true, search: true, tel: true, text: true, time: true, url: true, week: true }; function isTextInputElement(elem) { var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase(); if (nodeName === 'input') { return !!supportedInputTypes[elem.type]; } if (nodeName === 'textarea') { return true; } return false; } /** * HTML nodeType values that represent the type of the node */ var ELEMENT_NODE = 1; var TEXT_NODE = 3; var COMMENT_NODE = 8; var DOCUMENT_NODE = 9; var DOCUMENT_FRAGMENT_NODE = 11; /** * Gets the target node from a native browser event by accounting for * inconsistencies in browser DOM APIs. * * @param {object} nativeEvent Native browser event. * @return {DOMEventTarget} Target node. */ function getEventTarget(nativeEvent) { // Fallback to nativeEvent.srcElement for IE9 // https://github.com/facebook/react/issues/12506 var target = nativeEvent.target || nativeEvent.srcElement || window; // Normalize SVG element events #4963 if (target.correspondingUseElement) { target = target.correspondingUseElement; } // Safari may fire events on text nodes (Node.TEXT_NODE is 3). // @see http://www.quirksmode.org/js/events_properties.html return target.nodeType === TEXT_NODE ? target.parentNode : target; } /** * Checks if an event is supported in the current execution environment. * * NOTE: This will not work correctly for non-generic events such as `change`, * `reset`, `load`, `error`, and `select`. * * Borrows from Modernizr. * * @param {string} eventNameSuffix Event name, e.g. "click". * @return {boolean} True if the event is supported. * @internal * @license Modernizr 3.0.0pre (Custom Build) | MIT */ function isEventSupported(eventNameSuffix) { if (!canUseDOM) { return false; } var eventName = 'on' + eventNameSuffix; var isSupported = eventName in document; if (!isSupported) { var element = document.createElement('div'); element.setAttribute(eventName, 'return;'); isSupported = typeof element[eventName] === 'function'; } return isSupported; } function isCheckable(elem) { var type = elem.type; var nodeName = elem.nodeName; return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio'); } function getTracker(node) { return node._valueTracker; } function detachTracker(node) { node._valueTracker = null; } function getValueFromNode(node) { var value = ''; if (!node) { return value; } if (isCheckable(node)) { value = node.checked ? 'true' : 'false'; } else { value = node.value; } return value; } function trackValueOnNode(node) { var valueField = isCheckable(node) ? 'checked' : 'value'; var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField); var currentValue = '' + node[valueField]; // if someone has already defined a value or Safari, then bail // and don't track value will cause over reporting of changes, // but it's better then a hard failure // (needed for certain tests that spyOn input values and Safari) if (node.hasOwnProperty(valueField) || typeof descriptor === 'undefined' || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') { return; } var get = descriptor.get, set = descriptor.set; Object.defineProperty(node, valueField, { configurable: true, get: function () { return get.call(this); }, set: function (value) { currentValue = '' + value; set.call(this, value); } }); // We could've passed this the first time // but it triggers a bug in IE11 and Edge 14/15. // Calling defineProperty() again should be equivalent. // https://github.com/facebook/react/issues/11768 Object.defineProperty(node, valueField, { enumerable: descriptor.enumerable }); var tracker = { getValue: function () { return currentValue; }, setValue: function (value) { currentValue = '' + value; }, stopTracking: function () { detachTracker(node); delete node[valueField]; } }; return tracker; } function track(node) { if (getTracker(node)) { return; } // TODO: Once it's just Fiber we can move this to node._wrapperState node._valueTracker = trackValueOnNode(node); } function updateValueIfChanged(node) { if (!node) { return false; } var tracker = getTracker(node); // if there is no tracker at this point it's unlikely // that trying again will succeed if (!tracker) { return true; } var lastValue = tracker.getValue(); var nextValue = getValueFromNode(node); if (nextValue !== lastValue) { tracker.setValue(nextValue); return true; } return false; } var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; var BEFORE_SLASH_RE = /^(.*)[\\\/]/; var describeComponentFrame = function (name, source, ownerName) { var sourceInfo = ''; if (source) { var path = source.fileName; var fileName = path.replace(BEFORE_SLASH_RE, ''); { // In DEV, include code for a common special case: // prefer "folder/index.js" instead of just "index.js". if (/^index\./.test(fileName)) { var match = path.match(BEFORE_SLASH_RE); if (match) { var pathBeforeSlash = match[1]; if (pathBeforeSlash) { var folderName = pathBeforeSlash.replace(BEFORE_SLASH_RE, ''); fileName = folderName + '/' + fileName; } } } } sourceInfo = ' (at ' + fileName + ':' + source.lineNumber + ')'; } else if (ownerName) { sourceInfo = ' (created by ' + ownerName + ')'; } return '\n in ' + (name || 'Unknown') + sourceInfo; }; // The Symbol used to tag the ReactElement-like types. If there is no native Symbol // nor polyfill, then a plain number is used for performance. var hasSymbol = typeof Symbol === 'function' && Symbol.for; var REACT_ELEMENT_TYPE = hasSymbol ? Symbol.for('react.element') : 0xeac7; var REACT_PORTAL_TYPE = hasSymbol ? Symbol.for('react.portal') : 0xeaca; var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol.for('react.fragment') : 0xeacb; var REACT_STRICT_MODE_TYPE = hasSymbol ? Symbol.for('react.strict_mode') : 0xeacc; var REACT_PROFILER_TYPE = hasSymbol ? Symbol.for('react.profiler') : 0xead2; var REACT_PROVIDER_TYPE = hasSymbol ? Symbol.for('react.provider') : 0xeacd; var REACT_CONTEXT_TYPE = hasSymbol ? Symbol.for('react.context') : 0xeace; var REACT_CONCURRENT_MODE_TYPE = hasSymbol ? Symbol.for('react.concurrent_mode') : 0xeacf; var REACT_FORWARD_REF_TYPE = hasSymbol ? Symbol.for('react.forward_ref') : 0xead0; var REACT_SUSPENSE_TYPE = hasSymbol ? Symbol.for('react.suspense') : 0xead1; var REACT_MEMO_TYPE = hasSymbol ? Symbol.for('react.memo') : 0xead3; var REACT_LAZY_TYPE = hasSymbol ? Symbol.for('react.lazy') : 0xead4; var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator; var FAUX_ITERATOR_SYMBOL = '@@iterator'; function getIteratorFn(maybeIterable) { if (maybeIterable === null || typeof maybeIterable !== 'object') { return null; } var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]; if (typeof maybeIterator === 'function') { return maybeIterator; } return null; } var Pending = 0; var Resolved = 1; var Rejected = 2; function refineResolvedLazyComponent(lazyComponent) { return lazyComponent._status === Resolved ? lazyComponent._result : null; } function getWrappedName(outerType, innerType, wrapperName) { var functionName = innerType.displayName || innerType.name || ''; return outerType.displayName || (functionName !== '' ? wrapperName + '(' + functionName + ')' : wrapperName); } function getComponentName(type) { if (type == null) { // Host root, text node or just invalid type. return null; } { if (typeof type.tag === 'number') { warningWithoutStack$1(false, 'Received an unexpected object in getComponentName(). ' + 'This is likely a bug in React. Please file an issue.'); } } if (typeof type === 'function') { return type.displayName || type.name || null; } if (typeof type === 'string') { return type; } switch (type) { case REACT_CONCURRENT_MODE_TYPE: return 'ConcurrentMode'; case REACT_FRAGMENT_TYPE: return 'Fragment'; case REACT_PORTAL_TYPE: return 'Portal'; case REACT_PROFILER_TYPE: return 'Profiler'; case REACT_STRICT_MODE_TYPE: return 'StrictMode'; case REACT_SUSPENSE_TYPE: return 'Suspense'; } if (typeof type === 'object') { switch (type.$$typeof) { case REACT_CONTEXT_TYPE: return 'Context.Consumer'; case REACT_PROVIDER_TYPE: return 'Context.Provider'; case REACT_FORWARD_REF_TYPE: return getWrappedName(type, type.render, 'ForwardRef'); case REACT_MEMO_TYPE: return getComponentName(type.type); case REACT_LAZY_TYPE: { var thenable = type; var resolvedThenable = refineResolvedLazyComponent(thenable); if (resolvedThenable) { return getComponentName(resolvedThenable); } } } } return null; } var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame; function describeFiber(fiber) { switch (fiber.tag) { case HostRoot: case HostPortal: case HostText: case Fragment: case ContextProvider: case ContextConsumer: return ''; default: var owner = fiber._debugOwner; var source = fiber._debugSource; var name = getComponentName(fiber.type); var ownerName = null; if (owner) { ownerName = getComponentName(owner.type); } return describeComponentFrame(name, source, ownerName); } } function getStackByFiberInDevAndProd(workInProgress) { var info = ''; var node = workInProgress; do { info += describeFiber(node); node = node.return; } while (node); return info; } var current = null; var phase = null; function getCurrentFiberOwnerNameInDevOrNull() { { if (current === null) { return null; } var owner = current._debugOwner; if (owner !== null && typeof owner !== 'undefined') { return getComponentName(owner.type); } } return null; } function getCurrentFiberStackInDev() { { if (current === null) { return ''; } // Safe because if current fiber exists, we are reconciling, // and it is guaranteed to be the work-in-progress version. return getStackByFiberInDevAndProd(current); } return ''; } function resetCurrentFiber() { { ReactDebugCurrentFrame.getCurrentStack = null; current = null; phase = null; } } function setCurrentFiber(fiber) { { ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackInDev; current = fiber; phase = null; } } function setCurrentPhase(lifeCyclePhase) { { phase = lifeCyclePhase; } } /** * Similar to invariant but only logs a warning if the condition is not met. * This can be used to log issues in development environments in critical * paths. Removing the logging code for production environments will keep the * same logic and follow the same code paths. */ var warning = warningWithoutStack$1; { warning = function (condition, format) { if (condition) { return; } var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame; var stack = ReactDebugCurrentFrame.getStackAddendum(); // eslint-disable-next-line react-internal/warning-and-invariant-args for (var _len = arguments.length, args = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) { args[_key - 2] = arguments[_key]; } warningWithoutStack$1.apply(undefined, [false, format + '%s'].concat(args, [stack])); }; } var warning$1 = warning; // A reserved attribute. // It is handled by React separately and shouldn't be written to the DOM. var RESERVED = 0; // A simple string attribute. // Attributes that aren't in the whitelist are presumed to have this type. var STRING = 1; // A string attribute that accepts booleans in React. In HTML, these are called // "enumerated" attributes with "true" and "false" as possible values. // When true, it should be set to a "true" string. // When false, it should be set to a "false" string. var BOOLEANISH_STRING = 2; // A real boolean attribute. // When true, it should be present (set either to an empty string or its name). // When false, it should be omitted. var BOOLEAN = 3; // An attribute that can be used as a flag as well as with a value. // When true, it should be present (set either to an empty string or its name). // When false, it should be omitted. // For any other value, should be present with that value. var OVERLOADED_BOOLEAN = 4; // An attribute that must be numeric or parse as a numeric. // When falsy, it should be removed. var NUMERIC = 5; // An attribute that must be positive numeric or parse as a positive numeric. // When falsy, it should be removed. var POSITIVE_NUMERIC = 6; /* eslint-disable max-len */ var ATTRIBUTE_NAME_START_CHAR = ':A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD'; /* eslint-enable max-len */ var ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + '\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040'; var ROOT_ATTRIBUTE_NAME = 'data-reactroot'; var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$'); var hasOwnProperty = Object.prototype.hasOwnProperty; var illegalAttributeNameCache = {}; var validatedAttributeNameCache = {}; function isAttributeNameSafe(attributeName) { if (hasOwnProperty.call(validatedAttributeNameCache, attributeName)) { return true; } if (hasOwnProperty.call(illegalAttributeNameCache, attributeName)) { return false; } if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) { validatedAttributeNameCache[attributeName] = true; return true; } illegalAttributeNameCache[attributeName] = true; { warning$1(false, 'Invalid attribute name: `%s`', attributeName); } return false; } function shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag) { if (propertyInfo !== null) { return propertyInfo.type === RESERVED; } if (isCustomComponentTag) { return false; } if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) { return true; } return false; } function shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) { if (propertyInfo !== null && propertyInfo.type === RESERVED) { return false; } switch (typeof value) { case 'function': // $FlowIssue symbol is perfectly valid here case 'symbol': // eslint-disable-line return true; case 'boolean': { if (isCustomComponentTag) { return false; } if (propertyInfo !== null) { return !propertyInfo.acceptsBooleans; } else { var prefix = name.toLowerCase().slice(0, 5); return prefix !== 'data-' && prefix !== 'aria-'; } } default: return false; } } function shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag) { if (value === null || typeof value === 'undefined') { return true; } if (shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag)) { return true; } if (isCustomComponentTag) { return false; } if (propertyInfo !== null) { switch (propertyInfo.type) { case BOOLEAN: return !value; case OVERLOADED_BOOLEAN: return value === false; case NUMERIC: return isNaN(value); case POSITIVE_NUMERIC: return isNaN(value) || value < 1; } } return false; } function getPropertyInfo(name) { return properties.hasOwnProperty(name) ? properties[name] : null; } function PropertyInfoRecord(name, type, mustUseProperty, attributeName, attributeNamespace) { this.acceptsBooleans = type === BOOLEANISH_STRING || type === BOOLEAN || type === OVERLOADED_BOOLEAN; this.attributeName = attributeName; this.attributeNamespace = attributeNamespace; this.mustUseProperty = mustUseProperty; this.propertyName = name; this.type = type; } // When adding attributes to this list, be sure to also add them to // the `possibleStandardNames` module to ensure casing and incorrect // name warnings. var properties = {}; // These props are reserved by React. They shouldn't be written to the DOM. ['children', 'dangerouslySetInnerHTML', // TODO: This prevents the assignment of defaultValue to regular // elements (not just inputs). Now that ReactDOMInput assigns to the // defaultValue property -- do we need this? 'defaultValue', 'defaultChecked', 'innerHTML', 'suppressContentEditableWarning', 'suppressHydrationWarning', 'style'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, RESERVED, false, // mustUseProperty name, // attributeName null); } // attributeNamespace ); // A few React string attributes have a different name. // This is a mapping from React prop names to the attribute names. [['acceptCharset', 'accept-charset'], ['className', 'class'], ['htmlFor', 'for'], ['httpEquiv', 'http-equiv']].forEach(function (_ref) { var name = _ref[0], attributeName = _ref[1]; properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty attributeName, // attributeName null); } // attributeNamespace ); // These are "enumerated" HTML attributes that accept "true" and "false". // In React, we let users pass `true` and `false` even though technically // these aren't boolean attributes (they are coerced to strings). ['contentEditable', 'draggable', 'spellCheck', 'value'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty name.toLowerCase(), // attributeName null); } // attributeNamespace ); // These are "enumerated" SVG attributes that accept "true" and "false". // In React, we let users pass `true` and `false` even though technically // these aren't boolean attributes (they are coerced to strings). // Since these are SVG attributes, their attribute names are case-sensitive. ['autoReverse', 'externalResourcesRequired', 'focusable', 'preserveAlpha'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, BOOLEANISH_STRING, false, // mustUseProperty name, // attributeName null); } // attributeNamespace ); // These are HTML boolean attributes. ['allowFullScreen', 'async', // Note: there is a special case that prevents it from being written to the DOM // on the client side because the browsers are inconsistent. Instead we call focus(). 'autoFocus', 'autoPlay', 'controls', 'default', 'defer', 'disabled', 'formNoValidate', 'hidden', 'loop', 'noModule', 'noValidate', 'open', 'playsInline', 'readOnly', 'required', 'reversed', 'scoped', 'seamless', // Microdata 'itemScope'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, BOOLEAN, false, // mustUseProperty name.toLowerCase(), // attributeName null); } // attributeNamespace ); // These are the few React props that we set as DOM properties // rather than attributes. These are all booleans. ['checked', // Note: `option.selected` is not updated if `select.multiple` is // disabled with `removeAttribute`. We have special logic for handling this. 'multiple', 'muted', 'selected'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, BOOLEAN, true, // mustUseProperty name, // attributeName null); } // attributeNamespace ); // These are HTML attributes that are "overloaded booleans": they behave like // booleans, but can also accept a string value. ['capture', 'download'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, OVERLOADED_BOOLEAN, false, // mustUseProperty name, // attributeName null); } // attributeNamespace ); // These are HTML attributes that must be positive numbers. ['cols', 'rows', 'size', 'span'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, POSITIVE_NUMERIC, false, // mustUseProperty name, // attributeName null); } // attributeNamespace ); // These are HTML attributes that must be numbers. ['rowSpan', 'start'].forEach(function (name) { properties[name] = new PropertyInfoRecord(name, NUMERIC, false, // mustUseProperty name.toLowerCase(), // attributeName null); } // attributeNamespace ); var CAMELIZE = /[\-\:]([a-z])/g; var capitalize = function (token) { return token[1].toUpperCase(); }; // This is a list of all SVG attributes that need special casing, namespacing, // or boolean value assignment. Regular attributes that just accept strings // and have the same names are omitted, just like in the HTML whitelist. // Some of these attributes can be hard to find. This list was created by // scrapping the MDN documentation. ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'xmlns:xlink', 'x-height'].forEach(function (attributeName) { var name = attributeName.replace(CAMELIZE, capitalize); properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty attributeName, null); } // attributeNamespace ); // String SVG attributes with the xlink namespace. ['xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type'].forEach(function (attributeName) { var name = attributeName.replace(CAMELIZE, capitalize); properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty attributeName, 'http://www.w3.org/1999/xlink'); }); // String SVG attributes with the xml namespace. ['xml:base', 'xml:lang', 'xml:space'].forEach(function (attributeName) { var name = attributeName.replace(CAMELIZE, capitalize); properties[name] = new PropertyInfoRecord(name, STRING, false, // mustUseProperty attributeName, 'http://www.w3.org/XML/1998/namespace'); }); // Special case: this attribute exists both in HTML and SVG. // Its "tabindex" attribute name is case-sensitive in SVG so we can't just use // its React `tabIndex` name, like we do for attributes that exist only in HTML. properties.tabIndex = new PropertyInfoRecord('tabIndex', STRING, false, // mustUseProperty 'tabindex', // attributeName null); /** * Get the value for a property on a node. Only used in DEV for SSR validation. * The "expected" argument is used as a hint of what the expected value is. * Some properties have multiple equivalent values. */ function getValueForProperty(node, name, expected, propertyInfo) { { if (propertyInfo.mustUseProperty) { var propertyName = propertyInfo.propertyName; return node[propertyName]; } else { var attributeName = propertyInfo.attributeName; var stringValue = null; if (propertyInfo.type === OVERLOADED_BOOLEAN) { if (node.hasAttribute(attributeName)) { var value = node.getAttribute(attributeName); if (value === '') { return true; } if (shouldRemoveAttribute(name, expected, propertyInfo, false)) { return value; } if (value === '' + expected) { return expected; } return value; } } else if (node.hasAttribute(attributeName)) { if (shouldRemoveAttribute(name, expected, propertyInfo, false)) { // We had an attribute but shouldn't have had one, so read it // for the error message. return node.getAttribute(attributeName); } if (propertyInfo.type === BOOLEAN) { // If this was a boolean, it doesn't matter what the value is // the fact that we have it is the same as the expected. return expected; } // Even if this property uses a namespace we use getAttribute // because we assume its namespaced name is the same as our config. // To use getAttributeNS we need the local name which we don't have // in our config atm. stringValue = node.getAttribute(attributeName); } if (shouldRemoveAttribute(name, expected, propertyInfo, false)) { return stringValue === null ? expected : stringValue; } else if (stringValue === '' + expected) { return expected; } else { return stringValue; } } } } /** * Get the value for a attribute on a node. Only used in DEV for SSR validation. * The third argument is used as a hint of what the expected value is. Some * attributes have multiple equivalent values. */ function getValueForAttribute(node, name, expected) { { if (!isAttributeNameSafe(name)) { return; } if (!node.hasAttribute(name)) { return expected === undefined ? undefined : null; } var value = node.getAttribute(name); if (value === '' + expected) { return expected; } return value; } } /** * Sets the value for a property on a node. * * @param {DOMElement} node * @param {string} name * @param {*} value */ function setValueForProperty(node, name, value, isCustomComponentTag) { var propertyInfo = getPropertyInfo(name); if (shouldIgnoreAttribute(name, propertyInfo, isCustomComponentTag)) { return; } if (shouldRemoveAttribute(name, value, propertyInfo, isCustomComponentTag)) { value = null; } // If the prop isn't in the special list, treat it as a simple attribute. if (isCustomComponentTag || propertyInfo === null) { if (isAttributeNameSafe(name)) { var _attributeName = name; if (value === null) { node.removeAttribute(_attributeName); } else { node.setAttribute(_attributeName, '' + value); } } return; } var mustUseProperty = propertyInfo.mustUseProperty; if (mustUseProperty) { var propertyName = propertyInfo.propertyName; if (value === null) { var type = propertyInfo.type; node[propertyName] = type === BOOLEAN ? false : ''; } else { // Contrary to `setAttribute`, object properties are properly // `toString`ed by IE8/9. node[propertyName] = value; } return; } // The rest are treated as attributes with special cases. var attributeName = propertyInfo.attributeName, attributeNamespace = propertyInfo.attributeNamespace; if (value === null) { node.removeAttribute(attributeName); } else { var _type = propertyInfo.type; var attributeValue = void 0; if (_type === BOOLEAN || _type === OVERLOADED_BOOLEAN && value === true) { attributeValue = ''; } else { // `setAttribute` with objects becomes only `[object]` in IE8/9, // ('' + value) makes it output the correct toString()-value. attributeValue = '' + value; } if (attributeNamespace) { node.setAttributeNS(attributeNamespace, attributeName, attributeValue); } else { node.setAttribute(attributeName, attributeValue); } } } // Flow does not allow string concatenation of most non-string types. To work // around this limitation, we use an opaque type that can only be obtained by // passing the value through getToStringValue first. function toString(value) { return '' + value; } function getToStringValue(value) { switch (typeof value) { case 'boolean': case 'number': case 'object': case 'string': case 'undefined': return value; default: // function, symbol are assigned as empty strings return ''; } } /** * Copyright (c) 2013-present, Facebook, Inc. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ var ReactPropTypesSecret$1 = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED'; var ReactPropTypesSecret_1 = ReactPropTypesSecret$1; /** * Copyright (c) 2013-present, Facebook, Inc. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ var printWarning = function() {}; { var ReactPropTypesSecret = ReactPropTypesSecret_1; var loggedTypeFailures = {}; printWarning = function(text) { var message = 'Warning: ' + text; if (typeof console !== 'undefined') { console.error(message); } try { // --- Welcome to debugging React --- // This error was thrown as a convenience so that you can use this stack // to find the callsite that caused this warning to fire. throw new Error(message); } catch (x) {} }; } /** * Assert that the values match with the type specs. * Error messages are memorized and will only be shown once. * * @param {object} typeSpecs Map of name to a ReactPropType * @param {object} values Runtime values that need to be type-checked * @param {string} location e.g. "prop", "context", "child context" * @param {string} componentName Name of the component for error messages. * @param {?Function} getStack Returns the component stack. * @private */ function checkPropTypes(typeSpecs, values, location, componentName, getStack) { { for (var typeSpecName in typeSpecs) { if (typeSpecs.hasOwnProperty(typeSpecName)) { var error; // Prop type validation may throw. In case they do, we don't want to // fail the render phase where it didn't fail before. So we log it. // After these have been cleaned up, we'll let them throw. try { // This is intentionally an invariant that gets caught. It's the same // behavior as without this statement except with a better message. if (typeof typeSpecs[typeSpecName] !== 'function') { var err = Error( (componentName || 'React class') + ': ' + location + ' type `' + typeSpecName + '` is invalid; ' + 'it must be a function, usually from the `prop-types` package, but received `' + typeof typeSpecs[typeSpecName] + '`.' ); err.name = 'Invariant Violation'; throw err; } error = typeSpecs[typeSpecName](values, typeSpecName, componentName, location, null, ReactPropTypesSecret); } catch (ex) { error = ex; } if (error && !(error instanceof Error)) { printWarning( (componentName || 'React class') + ': type specification of ' + location + ' `' + typeSpecName + '` is invalid; the type checker ' + 'function must return `null` or an `Error` but returned a ' + typeof error + '. ' + 'You may have forgotten to pass an argument to the type checker ' + 'creator (arrayOf, instanceOf, objectOf, oneOf, oneOfType, and ' + 'shape all require an argument).' ); } if (error instanceof Error && !(error.message in loggedTypeFailures)) { // Only monitor this failure once because there tends to be a lot of the // same error. loggedTypeFailures[error.message] = true; var stack = getStack ? getStack() : ''; printWarning( 'Failed ' + location + ' type: ' + error.message + (stack != null ? stack : '') ); } } } } } var checkPropTypes_1 = checkPropTypes; var ReactDebugCurrentFrame$1 = null; var ReactControlledValuePropTypes = { checkPropTypes: null }; { ReactDebugCurrentFrame$1 = ReactSharedInternals.ReactDebugCurrentFrame; var hasReadOnlyValue = { button: true, checkbox: true, image: true, hidden: true, radio: true, reset: true, submit: true }; var propTypes = { value: function (props, propName, componentName) { if (hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled || props[propName] == null) { return null; } return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.'); }, checked: function (props, propName, componentName) { if (props.onChange || props.readOnly || props.disabled || props[propName] == null) { return null; } return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.'); } }; /** * Provide a linked `value` attribute for controlled forms. You should not use * this outside of the ReactDOM controlled form components. */ ReactControlledValuePropTypes.checkPropTypes = function (tagName, props) { checkPropTypes_1(propTypes, props, 'prop', tagName, ReactDebugCurrentFrame$1.getStackAddendum); }; } var enableUserTimingAPI = true; var enableHooks = false; // Helps identify side effects in begin-phase lifecycle hooks and setState reducers: var debugRenderPhaseSideEffects = false; // In some cases, StrictMode should also double-render lifecycles. // This can be confusing for tests though, // And it can be bad for performance in production. // This feature flag can be used to control the behavior: var debugRenderPhaseSideEffectsForStrictMode = true; // To preserve the "Pause on caught exceptions" behavior of the debugger, we // replay the begin phase of a failed component inside invokeGuardedCallback. var replayFailedUnitOfWorkWithInvokeGuardedCallback = true; // Warn about deprecated, async-unsafe lifecycles; relates to RFC #6: var warnAboutDeprecatedLifecycles = false; // Gather advanced timing metrics for Profiler subtrees. var enableProfilerTimer = true; // Trace which interactions trigger each commit. var enableSchedulerTracing = true; // Only used in www builds. // TODO: true? Here it might just be false. // Only used in www builds. // Only used in www builds. // React Fire: prevent the value and checked attributes from syncing // with their related DOM properties var disableInputAttributeSyncing = false; // These APIs will no longer be "unstable" in the upcoming 16.7 release, // Control this behavior with a flag to support 16.6 minor releases in the meanwhile. var enableStableConcurrentModeAPIs = false; var warnAboutShorthandPropertyCollision = false; // TODO: direct imports like some-package/src/* are bad. Fix me. var didWarnValueDefaultValue = false; var didWarnCheckedDefaultChecked = false; var didWarnControlledToUncontrolled = false; var didWarnUncontrolledToControlled = false; function isControlled(props) { var usesChecked = props.type === 'checkbox' || props.type === 'radio'; return usesChecked ? props.checked != null : props.value != null; } /** * Implements an host component that allows setting these optional * props: `checked`, `value`, `defaultChecked`, and `defaultValue`. * * If `checked` or `value` are not supplied (or null/undefined), user actions * that affect the checked state or value will trigger updates to the element. * * If they are supplied (and not null/undefined), the rendered element will not * trigger updates to the element. Instead, the props must change in order for * the rendered element to be updated. * * The rendered element will be initialized as unchecked (or `defaultChecked`) * with an empty value (or `defaultValue`). * * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html */ function getHostProps(element, props) { var node = element; var checked = props.checked; var hostProps = _assign({}, props, { defaultChecked: undefined, defaultValue: undefined, value: undefined, checked: checked != null ? checked : node._wrapperState.initialChecked }); return hostProps; } function initWrapperState(element, props) { { ReactControlledValuePropTypes.checkPropTypes('input', props); if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) { warning$1(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type); didWarnCheckedDefaultChecked = true; } if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) { warning$1(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerNameInDevOrNull() || 'A component', props.type); didWarnValueDefaultValue = true; } } var node = element; var defaultValue = props.defaultValue == null ? '' : props.defaultValue; node._wrapperState = { initialChecked: props.checked != null ? props.checked : props.defaultChecked, initialValue: getToStringValue(props.value != null ? props.value : defaultValue), controlled: isControlled(props) }; } function updateChecked(element, props) { var node = element; var checked = props.checked; if (checked != null) { setValueForProperty(node, 'checked', checked, false); } } function updateWrapper(element, props) { var node = element; { var _controlled = isControlled(props); if (!node._wrapperState.controlled && _controlled && !didWarnUncontrolledToControlled) { warning$1(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type); didWarnUncontrolledToControlled = true; } if (node._wrapperState.controlled && !_controlled && !didWarnControlledToUncontrolled) { warning$1(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components', props.type); didWarnControlledToUncontrolled = true; } } updateChecked(element, props); var value = getToStringValue(props.value); var type = props.type; if (value != null) { if (type === 'number') { if (value === 0 && node.value === '' || // We explicitly want to coerce to number here if possible. // eslint-disable-next-line node.value != value) { node.value = toString(value); } } else if (node.value !== toString(value)) { node.value = toString(value); } } else if (type === 'submit' || type === 'reset') { // Submit/reset inputs need the attribute removed completely to avoid // blank-text buttons. node.removeAttribute('value'); return; } if (disableInputAttributeSyncing) { // When not syncing the value attribute, React only assigns a new value // whenever the defaultValue React prop has changed. When not present, // React does nothing if (props.hasOwnProperty('defaultValue')) { setDefaultValue(node, props.type, getToStringValue(props.defaultValue)); } } else { // When syncing the value attribute, the value comes from a cascade of // properties: // 1. The value React property // 2. The defaultValue React property // 3. Otherwise there should be no change if (props.hasOwnProperty('value')) { setDefaultValue(node, props.type, value); } else if (props.hasOwnProperty('defaultValue')) { setDefaultValue(node, props.type, getToStringValue(props.defaultValue)); } } if (disableInputAttributeSyncing) { // When not syncing the checked attribute, the attribute is directly // controllable from the defaultValue React property. It needs to be // updated as new props come in. if (props.defaultChecked == null) { node.removeAttribute('checked'); } else { node.defaultChecked = !!props.defaultChecked; } } else { // When syncing the checked attribute, it only changes when it needs // to be removed, such as transitioning from a checkbox into a text input if (props.checked == null && props.defaultChecked != null) { node.defaultChecked = !!props.defaultChecked; } } } function postMountWrapper(element, props, isHydrating) { var node = element; // Do not assign value if it is already set. This prevents user text input // from being lost during SSR hydration. if (props.hasOwnProperty('value') || props.hasOwnProperty('defaultValue')) { var type = props.type; var isButton = type === 'submit' || type === 'reset'; // Avoid setting value attribute on submit/reset inputs as it overrides the // default value provided by the browser. See: #12872 if (isButton && (props.value === undefined || props.value === null)) { return; } var _initialValue = toString(node._wrapperState.initialValue); // Do not assign value if it is already set. This prevents user text input // from being lost during SSR hydration. if (!isHydrating) { if (disableInputAttributeSyncing) { var value = getToStringValue(props.value); // When not syncing the value attribute, the value property points // directly to the React prop. Only assign it if it exists. if (value != null) { // Always assign on buttons so that it is possible to assign an // empty string to clear button text. // // Otherwise, do not re-assign the value property if is empty. This // potentially avoids a DOM write and prevents Firefox (~60.0.1) from // prematurely marking required inputs as invalid. Equality is compared // to the current value in case the browser provided value is not an // empty string. if (isButton || value !== node.value) { node.value = toString(value); } } } else { // When syncing the value attribute, the value property should use // the wrapperState._initialValue property. This uses: // // 1. The value React property when present // 2. The defaultValue React property when present // 3. An empty string if (_initialValue !== node.value) { node.value = _initialValue; } } } if (disableInputAttributeSyncing) { // When not syncing the value attribute, assign the value attribute // directly from the defaultValue React property (when present) var defaultValue = getToStringValue(props.defaultValue); if (defaultValue != null) { node.defaultValue = toString(defaultValue); } } else { // Otherwise, the value attribute is synchronized to the property, // so we assign defaultValue to the same thing as the value property // assignment step above. node.defaultValue = _initialValue; } } // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug // this is needed to work around a chrome bug where setting defaultChecked // will sometimes influence the value of checked (even after detachment). // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416 // We need to temporarily unset name to avoid disrupting radio button groups. var name = node.name; if (name !== '') { node.name = ''; } if (disableInputAttributeSyncing) { // When not syncing the checked attribute, the checked property // never gets assigned. It must be manually set. We don't want // to do this when hydrating so that existing user input isn't // modified if (!isHydrating) { updateChecked(element, props); } // Only assign the checked attribute if it is defined. This saves // a DOM write when controlling the checked attribute isn't needed // (text inputs, submit/reset) if (props.hasOwnProperty('defaultChecked')) { node.defaultChecked = !node.defaultChecked; node.defaultChecked = !!props.defaultChecked; } } else { // When syncing the checked attribute, both the checked property and // attribute are assigned at the same time using defaultChecked. This uses: // // 1. The checked React property when present // 2. The defaultChecked React property when present // 3. Otherwise, false node.defaultChecked = !node.defaultChecked; node.defaultChecked = !!node._wrapperState.initialChecked; } if (name !== '') { node.name = name; } } function restoreControlledState(element, props) { var node = element; updateWrapper(node, props); updateNamedCousins(node, props); } function updateNamedCousins(rootNode, props) { var name = props.name; if (props.type === 'radio' && name != null) { var queryRoot = rootNode; while (queryRoot.parentNode) { queryRoot = queryRoot.parentNode; } // If `rootNode.form` was non-null, then we could try `form.elements`, // but that sometimes behaves strangely in IE8. We could also try using // `form.getElementsByName`, but that will only return direct children // and won't include inputs that use the HTML5 `form=` attribute. Since // the input might not even be in a form. It might not even be in the // document. Let's just use the local `querySelectorAll` to ensure we don't // miss anything. var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]'); for (var i = 0; i < group.length; i++) { var otherNode = group[i]; if (otherNode === rootNode || otherNode.form !== rootNode.form) { continue; } // This will throw if radio buttons rendered by different copies of React // and the same name are rendered into the same form (same as #1939). // That's probably okay; we don't support it just as we don't support // mixing React radio buttons with non-React ones. var otherProps = getFiberCurrentPropsFromNode$1(otherNode); !otherProps ? invariant(false, 'ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.') : void 0; // We need update the tracked value on the named cousin since the value // was changed but the input saw no event or value set updateValueIfChanged(otherNode); // If this is a controlled radio button group, forcing the input that // was previously checked to update will cause it to be come re-checked // as appropriate. updateWrapper(otherNode, otherProps); } } } // In Chrome, assigning defaultValue to certain input types triggers input validation. // For number inputs, the display value loses trailing decimal points. For email inputs, // Chrome raises "The specified value is not a valid email address". // // Here we check to see if the defaultValue has actually changed, avoiding these problems // when the user is inputting text // // https://github.com/facebook/react/issues/7253 function setDefaultValue(node, type, value) { if ( // Focused number inputs synchronize on blur. See ChangeEventPlugin.js type !== 'number' || node.ownerDocument.activeElement !== node) { if (value == null) { node.defaultValue = toString(node._wrapperState.initialValue); } else if (node.defaultValue !== toString(value)) { node.defaultValue = toString(value); } } } var eventTypes$1 = { change: { phasedRegistrationNames: { bubbled: 'onChange', captured: 'onChangeCapture' }, dependencies: [TOP_BLUR, TOP_CHANGE, TOP_CLICK, TOP_FOCUS, TOP_INPUT, TOP_KEY_DOWN, TOP_KEY_UP, TOP_SELECTION_CHANGE] } }; function createAndAccumulateChangeEvent(inst, nativeEvent, target) { var event = SyntheticEvent.getPooled(eventTypes$1.change, inst, nativeEvent, target); event.type = 'change'; // Flag this event loop as needing state restore. enqueueStateRestore(target); accumulateTwoPhaseDispatches(event); return event; } /** * For IE shims */ var activeElement = null; var activeElementInst = null; /** * SECTION: handle `change` event */ function shouldUseChangeEvent(elem) { var nodeName = elem.nodeName && elem.nodeName.toLowerCase(); return nodeName === 'select' || nodeName === 'input' && elem.type === 'file'; } function manualDispatchChangeEvent(nativeEvent) { var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent)); // If change and propertychange bubbled, we'd just bind to it like all the // other events and have it go through ReactBrowserEventEmitter. Since it // doesn't, we manually listen for the events and so we have to enqueue and // process the abstract event manually. // // Batching is necessary here in order to ensure that all event handlers run // before the next rerender (including event handlers attached to ancestor // elements instead of directly on the input). Without this, controlled // components don't work properly in conjunction with event bubbling because // the component is rerendered and the value reverted before all the event // handlers can run. See https://github.com/facebook/react/issues/708. batchedUpdates(runEventInBatch, event); } function runEventInBatch(event) { runEventsInBatch(event); } function getInstIfValueChanged(targetInst) { var targetNode = getNodeFromInstance$1(targetInst); if (updateValueIfChanged(targetNode)) { return targetInst; } } function getTargetInstForChangeEvent(topLevelType, targetInst) { if (topLevelType === TOP_CHANGE) { return targetInst; } } /** * SECTION: handle `input` event */ var isInputEventSupported = false; if (canUseDOM) { // IE9 claims to support the input event but fails to trigger it when // deleting text, so we ignore its input events. isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9); } /** * (For IE <=9) Starts tracking propertychange events on the passed-in element * and override the value property so that we can distinguish user events from * value changes in JS. */ function startWatchingForValueChange(target, targetInst) { activeElement = target; activeElementInst = targetInst; activeElement.attachEvent('onpropertychange', handlePropertyChange); } /** * (For IE <=9) Removes the event listeners from the currently-tracked element, * if any exists. */ function stopWatchingForValueChange() { if (!activeElement) { return; } activeElement.detachEvent('onpropertychange', handlePropertyChange); activeElement = null; activeElementInst = null; } /** * (For IE <=9) Handles a propertychange event, sending a `change` event if * the value of the active element has changed. */ function handlePropertyChange(nativeEvent) { if (nativeEvent.propertyName !== 'value') { return; } if (getInstIfValueChanged(activeElementInst)) { manualDispatchChangeEvent(nativeEvent); } } function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) { if (topLevelType === TOP_FOCUS) { // In IE9, propertychange fires for most input events but is buggy and // doesn't fire when text is deleted, but conveniently, selectionchange // appears to fire in all of the remaining cases so we catch those and // forward the event if the value has changed // In either case, we don't want to call the event handler if the value // is changed from JS so we redefine a setter for `.value` that updates // our activeElementValue variable, allowing us to ignore those changes // // stopWatching() should be a noop here but we call it just in case we // missed a blur event somehow. stopWatchingForValueChange(); startWatchingForValueChange(target, targetInst); } else if (topLevelType === TOP_BLUR) { stopWatchingForValueChange(); } } // For IE8 and IE9. function getTargetInstForInputEventPolyfill(topLevelType, targetInst) { if (topLevelType === TOP_SELECTION_CHANGE || topLevelType === TOP_KEY_UP || topLevelType === TOP_KEY_DOWN) { // On the selectionchange event, the target is just document which isn't // helpful for us so just check activeElement instead. // // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire // propertychange on the first input event after setting `value` from a // script and fires only keydown, keypress, keyup. Catching keyup usually // gets it and catching keydown lets us fire an event for the first // keystroke if user does a key repeat (it'll be a little delayed: right // before the second keystroke). Other input methods (e.g., paste) seem to // fire selectionchange normally. return getInstIfValueChanged(activeElementInst); } } /** * SECTION: handle `click` event */ function shouldUseClickEvent(elem) { // Use the `click` event to detect changes to checkbox and radio inputs. // This approach works across all browsers, whereas `change` does not fire // until `blur` in IE8. var nodeName = elem.nodeName; return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio'); } function getTargetInstForClickEvent(topLevelType, targetInst) { if (topLevelType === TOP_CLICK) { return getInstIfValueChanged(targetInst); } } function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) { if (topLevelType === TOP_INPUT || topLevelType === TOP_CHANGE) { return getInstIfValueChanged(targetInst); } } function handleControlledInputBlur(node) { var state = node._wrapperState; if (!state || !state.controlled || node.type !== 'number') { return; } if (!disableInputAttributeSyncing) { // If controlled, assign the value attribute to the current value on blur setDefaultValue(node, 'number', node.value); } } /** * This plugin creates an `onChange` event that normalizes change events * across form elements. This event fires at a time when it's possible to * change the element's value without seeing a flicker. * * Supported elements are: * - input (see `isTextInputElement`) * - textarea * - select */ var ChangeEventPlugin = { eventTypes: eventTypes$1, _isInputEventSupported: isInputEventSupported, extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window; var getTargetInstFunc = void 0, handleEventFunc = void 0; if (shouldUseChangeEvent(targetNode)) { getTargetInstFunc = getTargetInstForChangeEvent; } else if (isTextInputElement(targetNode)) { if (isInputEventSupported) { getTargetInstFunc = getTargetInstForInputOrChangeEvent; } else { getTargetInstFunc = getTargetInstForInputEventPolyfill; handleEventFunc = handleEventsForInputEventPolyfill; } } else if (shouldUseClickEvent(targetNode)) { getTargetInstFunc = getTargetInstForClickEvent; } if (getTargetInstFunc) { var inst = getTargetInstFunc(topLevelType, targetInst); if (inst) { var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget); return event; } } if (handleEventFunc) { handleEventFunc(topLevelType, targetNode, targetInst); } // When blurring, set the value attribute for number inputs if (topLevelType === TOP_BLUR) { handleControlledInputBlur(targetNode); } } }; /** * Module that is injectable into `EventPluginHub`, that specifies a * deterministic ordering of `EventPlugin`s. A convenient way to reason about * plugins, without having to package every one of them. This is better than * having plugins be ordered in the same order that they are injected because * that ordering would be influenced by the packaging order. * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that * preventing default on events is convenient in `SimpleEventPlugin` handlers. */ var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin']; var SyntheticUIEvent = SyntheticEvent.extend({ view: null, detail: null }); var modifierKeyToProp = { Alt: 'altKey', Control: 'ctrlKey', Meta: 'metaKey', Shift: 'shiftKey' }; // Older browsers (Safari <= 10, iOS Safari <= 10.2) do not support // getModifierState. If getModifierState is not supported, we map it to a set of // modifier keys exposed by the event. In this case, Lock-keys are not supported. /** * Translation from modifier key to the associated property in the event. * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers */ function modifierStateGetter(keyArg) { var syntheticEvent = this; var nativeEvent = syntheticEvent.nativeEvent; if (nativeEvent.getModifierState) { return nativeEvent.getModifierState(keyArg); } var keyProp = modifierKeyToProp[keyArg]; return keyProp ? !!nativeEvent[keyProp] : false; } function getEventModifierState(nativeEvent) { return modifierStateGetter; } var previousScreenX = 0; var previousScreenY = 0; // Use flags to signal movementX/Y has already been set var isMovementXSet = false; var isMovementYSet = false; /** * @interface MouseEvent * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var SyntheticMouseEvent = SyntheticUIEvent.extend({ screenX: null, screenY: null, clientX: null, clientY: null, pageX: null, pageY: null, ctrlKey: null, shiftKey: null, altKey: null, metaKey: null, getModifierState: getEventModifierState, button: null, buttons: null, relatedTarget: function (event) { return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement); }, movementX: function (event) { if ('movementX' in event) { return event.movementX; } var screenX = previousScreenX; previousScreenX = event.screenX; if (!isMovementXSet) { isMovementXSet = true; return 0; } return event.type === 'mousemove' ? event.screenX - screenX : 0; }, movementY: function (event) { if ('movementY' in event) { return event.movementY; } var screenY = previousScreenY; previousScreenY = event.screenY; if (!isMovementYSet) { isMovementYSet = true; return 0; } return event.type === 'mousemove' ? event.screenY - screenY : 0; } }); /** * @interface PointerEvent * @see http://www.w3.org/TR/pointerevents/ */ var SyntheticPointerEvent = SyntheticMouseEvent.extend({ pointerId: null, width: null, height: null, pressure: null, tangentialPressure: null, tiltX: null, tiltY: null, twist: null, pointerType: null, isPrimary: null }); var eventTypes$2 = { mouseEnter: { registrationName: 'onMouseEnter', dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER] }, mouseLeave: { registrationName: 'onMouseLeave', dependencies: [TOP_MOUSE_OUT, TOP_MOUSE_OVER] }, pointerEnter: { registrationName: 'onPointerEnter', dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER] }, pointerLeave: { registrationName: 'onPointerLeave', dependencies: [TOP_POINTER_OUT, TOP_POINTER_OVER] } }; var EnterLeaveEventPlugin = { eventTypes: eventTypes$2, /** * For almost every interaction we care about, there will be both a top-level * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that * we do not extract duplicate events. However, moving the mouse into the * browser from outside will not fire a `mouseout` event. In this case, we use * the `mouseover` top-level event. */ extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { var isOverEvent = topLevelType === TOP_MOUSE_OVER || topLevelType === TOP_POINTER_OVER; var isOutEvent = topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_POINTER_OUT; if (isOverEvent && (nativeEvent.relatedTarget || nativeEvent.fromElement)) { return null; } if (!isOutEvent && !isOverEvent) { // Must not be a mouse or pointer in or out - ignoring. return null; } var win = void 0; if (nativeEventTarget.window === nativeEventTarget) { // `nativeEventTarget` is probably a window object. win = nativeEventTarget; } else { // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8. var doc = nativeEventTarget.ownerDocument; if (doc) { win = doc.defaultView || doc.parentWindow; } else { win = window; } } var from = void 0; var to = void 0; if (isOutEvent) { from = targetInst; var related = nativeEvent.relatedTarget || nativeEvent.toElement; to = related ? getClosestInstanceFromNode(related) : null; } else { // Moving to a node from outside the window. from = null; to = targetInst; } if (from === to) { // Nothing pertains to our managed components. return null; } var eventInterface = void 0, leaveEventType = void 0, enterEventType = void 0, eventTypePrefix = void 0; if (topLevelType === TOP_MOUSE_OUT || topLevelType === TOP_MOUSE_OVER) { eventInterface = SyntheticMouseEvent; leaveEventType = eventTypes$2.mouseLeave; enterEventType = eventTypes$2.mouseEnter; eventTypePrefix = 'mouse'; } else if (topLevelType === TOP_POINTER_OUT || topLevelType === TOP_POINTER_OVER) { eventInterface = SyntheticPointerEvent; leaveEventType = eventTypes$2.pointerLeave; enterEventType = eventTypes$2.pointerEnter; eventTypePrefix = 'pointer'; } var fromNode = from == null ? win : getNodeFromInstance$1(from); var toNode = to == null ? win : getNodeFromInstance$1(to); var leave = eventInterface.getPooled(leaveEventType, from, nativeEvent, nativeEventTarget); leave.type = eventTypePrefix + 'leave'; leave.target = fromNode; leave.relatedTarget = toNode; var enter = eventInterface.getPooled(enterEventType, to, nativeEvent, nativeEventTarget); enter.type = eventTypePrefix + 'enter'; enter.target = toNode; enter.relatedTarget = fromNode; accumulateEnterLeaveDispatches(leave, enter, from, to); return [leave, enter]; } }; /*eslint-disable no-self-compare */ var hasOwnProperty$1 = Object.prototype.hasOwnProperty; /** * inlined Object.is polyfill to avoid requiring consumers ship their own * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is */ function is(x, y) { // SameValue algorithm if (x === y) { // Steps 1-5, 7-10 // Steps 6.b-6.e: +0 != -0 // Added the nonzero y check to make Flow happy, but it is redundant return x !== 0 || y !== 0 || 1 / x === 1 / y; } else { // Step 6.a: NaN == NaN return x !== x && y !== y; } } /** * Performs equality by iterating through keys on an object and returning false * when any key has values which are not strictly equal between the arguments. * Returns true when the values of all keys are strictly equal. */ function shallowEqual(objA, objB) { if (is(objA, objB)) { return true; } if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) { return false; } var keysA = Object.keys(objA); var keysB = Object.keys(objB); if (keysA.length !== keysB.length) { return false; } // Test for A's keys different from B. for (var i = 0; i < keysA.length; i++) { if (!hasOwnProperty$1.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) { return false; } } return true; } /** * `ReactInstanceMap` maintains a mapping from a public facing stateful * instance (key) and the internal representation (value). This allows public * methods to accept the user facing instance as an argument and map them back * to internal methods. * * Note that this module is currently shared and assumed to be stateless. * If this becomes an actual Map, that will break. */ /** * This API should be called `delete` but we'd have to make sure to always * transform these to strings for IE support. When this transform is fully * supported we can rename it. */ function get(key) { return key._reactInternalFiber; } function has(key) { return key._reactInternalFiber !== undefined; } function set(key, value) { key._reactInternalFiber = value; } // Don't change these two values. They're used by React Dev Tools. var NoEffect = /* */0; var PerformedWork = /* */1; // You can change the rest (and add more). var Placement = /* */2; var Update = /* */4; var PlacementAndUpdate = /* */6; var Deletion = /* */8; var ContentReset = /* */16; var Callback = /* */32; var DidCapture = /* */64; var Ref = /* */128; var Snapshot = /* */256; var Passive = /* */512; // Passive & Update & Callback & Ref & Snapshot var LifecycleEffectMask = /* */932; // Union of all host effects var HostEffectMask = /* */1023; var Incomplete = /* */1024; var ShouldCapture = /* */2048; var ReactCurrentOwner$1 = ReactSharedInternals.ReactCurrentOwner; var MOUNTING = 1; var MOUNTED = 2; var UNMOUNTED = 3; function isFiberMountedImpl(fiber) { var node = fiber; if (!fiber.alternate) { // If there is no alternate, this might be a new tree that isn't inserted // yet. If it is, then it will have a pending insertion effect on it. if ((node.effectTag & Placement) !== NoEffect) { return MOUNTING; } while (node.return) { node = node.return; if ((node.effectTag & Placement) !== NoEffect) { return MOUNTING; } } } else { while (node.return) { node = node.return; } } if (node.tag === HostRoot) { // TODO: Check if this was a nested HostRoot when used with // renderContainerIntoSubtree. return MOUNTED; } // If we didn't hit the root, that means that we're in an disconnected tree // that has been unmounted. return UNMOUNTED; } function isFiberMounted(fiber) { return isFiberMountedImpl(fiber) === MOUNTED; } function isMounted(component) { { var owner = ReactCurrentOwner$1.current; if (owner !== null && owner.tag === ClassComponent) { var ownerFiber = owner; var instance = ownerFiber.stateNode; !instance._warnedAboutRefsInRender ? warningWithoutStack$1(false, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber.type) || 'A component') : void 0; instance._warnedAboutRefsInRender = true; } } var fiber = get(component); if (!fiber) { return false; } return isFiberMountedImpl(fiber) === MOUNTED; } function assertIsMounted(fiber) { !(isFiberMountedImpl(fiber) === MOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; } function findCurrentFiberUsingSlowPath(fiber) { var alternate = fiber.alternate; if (!alternate) { // If there is no alternate, then we only need to check if it is mounted. var state = isFiberMountedImpl(fiber); !(state !== UNMOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; if (state === MOUNTING) { return null; } return fiber; } // If we have two possible branches, we'll walk backwards up to the root // to see what path the root points to. On the way we may hit one of the // special cases and we'll deal with them. var a = fiber; var b = alternate; while (true) { var parentA = a.return; var parentB = parentA ? parentA.alternate : null; if (!parentA || !parentB) { // We're at the root. break; } // If both copies of the parent fiber point to the same child, we can // assume that the child is current. This happens when we bailout on low // priority: the bailed out fiber's child reuses the current child. if (parentA.child === parentB.child) { var child = parentA.child; while (child) { if (child === a) { // We've determined that A is the current branch. assertIsMounted(parentA); return fiber; } if (child === b) { // We've determined that B is the current branch. assertIsMounted(parentA); return alternate; } child = child.sibling; } // We should never have an alternate for any mounting node. So the only // way this could possibly happen is if this was unmounted, if at all. invariant(false, 'Unable to find node on an unmounted component.'); } if (a.return !== b.return) { // The return pointer of A and the return pointer of B point to different // fibers. We assume that return pointers never criss-cross, so A must // belong to the child set of A.return, and B must belong to the child // set of B.return. a = parentA; b = parentB; } else { // The return pointers point to the same fiber. We'll have to use the // default, slow path: scan the child sets of each parent alternate to see // which child belongs to which set. // // Search parent A's child set var didFindChild = false; var _child = parentA.child; while (_child) { if (_child === a) { didFindChild = true; a = parentA; b = parentB; break; } if (_child === b) { didFindChild = true; b = parentA; a = parentB; break; } _child = _child.sibling; } if (!didFindChild) { // Search parent B's child set _child = parentB.child; while (_child) { if (_child === a) { didFindChild = true; a = parentB; b = parentA; break; } if (_child === b) { didFindChild = true; b = parentB; a = parentA; break; } _child = _child.sibling; } !didFindChild ? invariant(false, 'Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.') : void 0; } } !(a.alternate === b) ? invariant(false, 'Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.') : void 0; } // If the root is not a host container, we're in a disconnected tree. I.e. // unmounted. !(a.tag === HostRoot) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0; if (a.stateNode.current === a) { // We've determined that A is the current branch. return fiber; } // Otherwise B has to be current branch. return alternate; } function findCurrentHostFiber(parent) { var currentParent = findCurrentFiberUsingSlowPath(parent); if (!currentParent) { return null; } // Next we'll drill down this component to find the first HostComponent/Text. var node = currentParent; while (true) { if (node.tag === HostComponent || node.tag === HostText) { return node; } else if (node.child) { node.child.return = node; node = node.child; continue; } if (node === currentParent) { return null; } while (!node.sibling) { if (!node.return || node.return === currentParent) { return null; } node = node.return; } node.sibling.return = node.return; node = node.sibling; } // Flow needs the return null here, but ESLint complains about it. // eslint-disable-next-line no-unreachable return null; } function findCurrentHostFiberWithNoPortals(parent) { var currentParent = findCurrentFiberUsingSlowPath(parent); if (!currentParent) { return null; } // Next we'll drill down this component to find the first HostComponent/Text. var node = currentParent; while (true) { if (node.tag === HostComponent || node.tag === HostText) { return node; } else if (node.child && node.tag !== HostPortal) { node.child.return = node; node = node.child; continue; } if (node === currentParent) { return null; } while (!node.sibling) { if (!node.return || node.return === currentParent) { return null; } node = node.return; } node.sibling.return = node.return; node = node.sibling; } // Flow needs the return null here, but ESLint complains about it. // eslint-disable-next-line no-unreachable return null; } function addEventBubbleListener(element, eventType, listener) { element.addEventListener(eventType, listener, false); } function addEventCaptureListener(element, eventType, listener) { element.addEventListener(eventType, listener, true); } /** * @interface Event * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent */ var SyntheticAnimationEvent = SyntheticEvent.extend({ animationName: null, elapsedTime: null, pseudoElement: null }); /** * @interface Event * @see http://www.w3.org/TR/clipboard-apis/ */ var SyntheticClipboardEvent = SyntheticEvent.extend({ clipboardData: function (event) { return 'clipboardData' in event ? event.clipboardData : window.clipboardData; } }); /** * @interface FocusEvent * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var SyntheticFocusEvent = SyntheticUIEvent.extend({ relatedTarget: null }); /** * `charCode` represents the actual "character code" and is safe to use with * `String.fromCharCode`. As such, only keys that correspond to printable * characters produce a valid `charCode`, the only exception to this is Enter. * The Tab-key is considered non-printable and does not have a `charCode`, * presumably because it does not produce a tab-character in browsers. * * @param {object} nativeEvent Native browser event. * @return {number} Normalized `charCode` property. */ function getEventCharCode(nativeEvent) { var charCode = void 0; var keyCode = nativeEvent.keyCode; if ('charCode' in nativeEvent) { charCode = nativeEvent.charCode; // FF does not set `charCode` for the Enter-key, check against `keyCode`. if (charCode === 0 && keyCode === 13) { charCode = 13; } } else { // IE8 does not implement `charCode`, but `keyCode` has the correct value. charCode = keyCode; } // IE and Edge (on Windows) and Chrome / Safari (on Windows and Linux) // report Enter as charCode 10 when ctrl is pressed. if (charCode === 10) { charCode = 13; } // Some non-printable keys are reported in `charCode`/`keyCode`, discard them. // Must not discard the (non-)printable Enter-key. if (charCode >= 32 || charCode === 13) { return charCode; } return 0; } /** * Normalization of deprecated HTML5 `key` values * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names */ var normalizeKey = { Esc: 'Escape', Spacebar: ' ', Left: 'ArrowLeft', Up: 'ArrowUp', Right: 'ArrowRight', Down: 'ArrowDown', Del: 'Delete', Win: 'OS', Menu: 'ContextMenu', Apps: 'ContextMenu', Scroll: 'ScrollLock', MozPrintableKey: 'Unidentified' }; /** * Translation from legacy `keyCode` to HTML5 `key` * Only special keys supported, all others depend on keyboard layout or browser * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names */ var translateToKey = { '8': 'Backspace', '9': 'Tab', '12': 'Clear', '13': 'Enter', '16': 'Shift', '17': 'Control', '18': 'Alt', '19': 'Pause', '20': 'CapsLock', '27': 'Escape', '32': ' ', '33': 'PageUp', '34': 'PageDown', '35': 'End', '36': 'Home', '37': 'ArrowLeft', '38': 'ArrowUp', '39': 'ArrowRight', '40': 'ArrowDown', '45': 'Insert', '46': 'Delete', '112': 'F1', '113': 'F2', '114': 'F3', '115': 'F4', '116': 'F5', '117': 'F6', '118': 'F7', '119': 'F8', '120': 'F9', '121': 'F10', '122': 'F11', '123': 'F12', '144': 'NumLock', '145': 'ScrollLock', '224': 'Meta' }; /** * @param {object} nativeEvent Native browser event. * @return {string} Normalized `key` property. */ function getEventKey(nativeEvent) { if (nativeEvent.key) { // Normalize inconsistent values reported by browsers due to // implementations of a working draft specification. // FireFox implements `key` but returns `MozPrintableKey` for all // printable characters (normalized to `Unidentified`), ignore it. var key = normalizeKey[nativeEvent.key] || nativeEvent.key; if (key !== 'Unidentified') { return key; } } // Browser does not implement `key`, polyfill as much of it as we can. if (nativeEvent.type === 'keypress') { var charCode = getEventCharCode(nativeEvent); // The enter-key is technically both printable and non-printable and can // thus be captured by `keypress`, no other non-printable key should. return charCode === 13 ? 'Enter' : String.fromCharCode(charCode); } if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') { // While user keyboard layout determines the actual meaning of each // `keyCode` value, almost all function keys have a universal value. return translateToKey[nativeEvent.keyCode] || 'Unidentified'; } return ''; } /** * @interface KeyboardEvent * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var SyntheticKeyboardEvent = SyntheticUIEvent.extend({ key: getEventKey, location: null, ctrlKey: null, shiftKey: null, altKey: null, metaKey: null, repeat: null, locale: null, getModifierState: getEventModifierState, // Legacy Interface charCode: function (event) { // `charCode` is the result of a KeyPress event and represents the value of // the actual printable character. // KeyPress is deprecated, but its replacement is not yet final and not // implemented in any major browser. Only KeyPress has charCode. if (event.type === 'keypress') { return getEventCharCode(event); } return 0; }, keyCode: function (event) { // `keyCode` is the result of a KeyDown/Up event and represents the value of // physical keyboard key. // The actual meaning of the value depends on the users' keyboard layout // which cannot be detected. Assuming that it is a US keyboard layout // provides a surprisingly accurate mapping for US and European users. // Due to this, it is left to the user to implement at this time. if (event.type === 'keydown' || event.type === 'keyup') { return event.keyCode; } return 0; }, which: function (event) { // `which` is an alias for either `keyCode` or `charCode` depending on the // type of the event. if (event.type === 'keypress') { return getEventCharCode(event); } if (event.type === 'keydown' || event.type === 'keyup') { return event.keyCode; } return 0; } }); /** * @interface DragEvent * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var SyntheticDragEvent = SyntheticMouseEvent.extend({ dataTransfer: null }); /** * @interface TouchEvent * @see http://www.w3.org/TR/touch-events/ */ var SyntheticTouchEvent = SyntheticUIEvent.extend({ touches: null, targetTouches: null, changedTouches: null, altKey: null, metaKey: null, ctrlKey: null, shiftKey: null, getModifierState: getEventModifierState }); /** * @interface Event * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events- * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent */ var SyntheticTransitionEvent = SyntheticEvent.extend({ propertyName: null, elapsedTime: null, pseudoElement: null }); /** * @interface WheelEvent * @see http://www.w3.org/TR/DOM-Level-3-Events/ */ var SyntheticWheelEvent = SyntheticMouseEvent.extend({ deltaX: function (event) { return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive). 'wheelDeltaX' in event ? -event.wheelDeltaX : 0; }, deltaY: function (event) { return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive). 'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive). 'wheelDelta' in event ? -event.wheelDelta : 0; }, deltaZ: null, // Browsers without "deltaMode" is reporting in raw wheel delta where one // notch on the scroll is always +/- 120, roughly equivalent to pixels. // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size. deltaMode: null }); /** * Turns * ['abort', ...] * into * eventTypes = { * 'abort': { * phasedRegistrationNames: { * bubbled: 'onAbort', * captured: 'onAbortCapture', * }, * dependencies: [TOP_ABORT], * }, * ... * }; * topLevelEventsToDispatchConfig = new Map([ * [TOP_ABORT, { sameConfig }], * ]); */ var interactiveEventTypeNames = [[TOP_BLUR, 'blur'], [TOP_CANCEL, 'cancel'], [TOP_CLICK, 'click'], [TOP_CLOSE, 'close'], [TOP_CONTEXT_MENU, 'contextMenu'], [TOP_COPY, 'copy'], [TOP_CUT, 'cut'], [TOP_AUX_CLICK, 'auxClick'], [TOP_DOUBLE_CLICK, 'doubleClick'], [TOP_DRAG_END, 'dragEnd'], [TOP_DRAG_START, 'dragStart'], [TOP_DROP, 'drop'], [TOP_FOCUS, 'focus'], [TOP_INPUT, 'input'], [TOP_INVALID, 'invalid'], [TOP_KEY_DOWN, 'keyDown'], [TOP_KEY_PRESS, 'keyPress'], [TOP_KEY_UP, 'keyUp'], [TOP_MOUSE_DOWN, 'mouseDown'], [TOP_MOUSE_UP, 'mouseUp'], [TOP_PASTE, 'paste'], [TOP_PAUSE, 'pause'], [TOP_PLAY, 'play'], [TOP_POINTER_CANCEL, 'pointerCancel'], [TOP_POINTER_DOWN, 'pointerDown'], [TOP_POINTER_UP, 'pointerUp'], [TOP_RATE_CHANGE, 'rateChange'], [TOP_RESET, 'reset'], [TOP_SEEKED, 'seeked'], [TOP_SUBMIT, 'submit'], [TOP_TOUCH_CANCEL, 'touchCancel'], [TOP_TOUCH_END, 'touchEnd'], [TOP_TOUCH_START, 'touchStart'], [TOP_VOLUME_CHANGE, 'volumeChange']]; var nonInteractiveEventTypeNames = [[TOP_ABORT, 'abort'], [TOP_ANIMATION_END, 'animationEnd'], [TOP_ANIMATION_ITERATION, 'animationIteration'], [TOP_ANIMATION_START, 'animationStart'], [TOP_CAN_PLAY, 'canPlay'], [TOP_CAN_PLAY_THROUGH, 'canPlayThrough'], [TOP_DRAG, 'drag'], [TOP_DRAG_ENTER, 'dragEnter'], [TOP_DRAG_EXIT, 'dragExit'], [TOP_DRAG_LEAVE, 'dragLeave'], [TOP_DRAG_OVER, 'dragOver'], [TOP_DURATION_CHANGE, 'durationChange'], [TOP_EMPTIED, 'emptied'], [TOP_ENCRYPTED, 'encrypted'], [TOP_ENDED, 'ended'], [TOP_ERROR, 'error'], [TOP_GOT_POINTER_CAPTURE, 'gotPointerCapture'], [TOP_LOAD, 'load'], [TOP_LOADED_DATA, 'loadedData'], [TOP_LOADED_METADATA, 'loadedMetadata'], [TOP_LOAD_START, 'loadStart'], [TOP_LOST_POINTER_CAPTURE, 'lostPointerCapture'], [TOP_MOUSE_MOVE, 'mouseMove'], [TOP_MOUSE_OUT, 'mouseOut'], [TOP_MOUSE_OVER, 'mouseOver'], [TOP_PLAYING, 'playing'], [TOP_POINTER_MOVE, 'pointerMove'], [TOP_POINTER_OUT, 'pointerOut'], [TOP_POINTER_OVER, 'pointerOver'], [TOP_PROGRESS, 'progress'], [TOP_SCROLL, 'scroll'], [TOP_SEEKING, 'seeking'], [TOP_STALLED, 'stalled'], [TOP_SUSPEND, 'suspend'], [TOP_TIME_UPDATE, 'timeUpdate'], [TOP_TOGGLE, 'toggle'], [TOP_TOUCH_MOVE, 'touchMove'], [TOP_TRANSITION_END, 'transitionEnd'], [TOP_WAITING, 'waiting'], [TOP_WHEEL, 'wheel']]; var eventTypes$4 = {}; var topLevelEventsToDispatchConfig = {}; function addEventTypeNameToConfig(_ref, isInteractive) { var topEvent = _ref[0], event = _ref[1]; var capitalizedEvent = event[0].toUpperCase() + event.slice(1); var onEvent = 'on' + capitalizedEvent; var type = { phasedRegistrationNames: { bubbled: onEvent, captured: onEvent + 'Capture' }, dependencies: [topEvent], isInteractive: isInteractive }; eventTypes$4[event] = type; topLevelEventsToDispatchConfig[topEvent] = type; } interactiveEventTypeNames.forEach(function (eventTuple) { addEventTypeNameToConfig(eventTuple, true); }); nonInteractiveEventTypeNames.forEach(function (eventTuple) { addEventTypeNameToConfig(eventTuple, false); }); // Only used in DEV for exhaustiveness validation. var knownHTMLTopLevelTypes = [TOP_ABORT, TOP_CANCEL, TOP_CAN_PLAY, TOP_CAN_PLAY_THROUGH, TOP_CLOSE, TOP_DURATION_CHANGE, TOP_EMPTIED, TOP_ENCRYPTED, TOP_ENDED, TOP_ERROR, TOP_INPUT, TOP_INVALID, TOP_LOAD, TOP_LOADED_DATA, TOP_LOADED_METADATA, TOP_LOAD_START, TOP_PAUSE, TOP_PLAY, TOP_PLAYING, TOP_PROGRESS, TOP_RATE_CHANGE, TOP_RESET, TOP_SEEKED, TOP_SEEKING, TOP_STALLED, TOP_SUBMIT, TOP_SUSPEND, TOP_TIME_UPDATE, TOP_TOGGLE, TOP_VOLUME_CHANGE, TOP_WAITING]; var SimpleEventPlugin = { eventTypes: eventTypes$4, isInteractiveTopLevelEventType: function (topLevelType) { var config = topLevelEventsToDispatchConfig[topLevelType]; return config !== undefined && config.isInteractive === true; }, extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType]; if (!dispatchConfig) { return null; } var EventConstructor = void 0; switch (topLevelType) { case TOP_KEY_PRESS: // Firefox creates a keypress event for function keys too. This removes // the unwanted keypress events. Enter is however both printable and // non-printable. One would expect Tab to be as well (but it isn't). if (getEventCharCode(nativeEvent) === 0) { return null; } /* falls through */ case TOP_KEY_DOWN: case TOP_KEY_UP: EventConstructor = SyntheticKeyboardEvent; break; case TOP_BLUR: case TOP_FOCUS: EventConstructor = SyntheticFocusEvent; break; case TOP_CLICK: // Firefox creates a click event on right mouse clicks. This removes the // unwanted click events. if (nativeEvent.button === 2) { return null; } /* falls through */ case TOP_AUX_CLICK: case TOP_DOUBLE_CLICK: case TOP_MOUSE_DOWN: case TOP_MOUSE_MOVE: case TOP_MOUSE_UP: // TODO: Disabled elements should not respond to mouse events /* falls through */ case TOP_MOUSE_OUT: case TOP_MOUSE_OVER: case TOP_CONTEXT_MENU: EventConstructor = SyntheticMouseEvent; break; case TOP_DRAG: case TOP_DRAG_END: case TOP_DRAG_ENTER: case TOP_DRAG_EXIT: case TOP_DRAG_LEAVE: case TOP_DRAG_OVER: case TOP_DRAG_START: case TOP_DROP: EventConstructor = SyntheticDragEvent; break; case TOP_TOUCH_CANCEL: case TOP_TOUCH_END: case TOP_TOUCH_MOVE: case TOP_TOUCH_START: EventConstructor = SyntheticTouchEvent; break; case TOP_ANIMATION_END: case TOP_ANIMATION_ITERATION: case TOP_ANIMATION_START: EventConstructor = SyntheticAnimationEvent; break; case TOP_TRANSITION_END: EventConstructor = SyntheticTransitionEvent; break; case TOP_SCROLL: EventConstructor = SyntheticUIEvent; break; case TOP_WHEEL: EventConstructor = SyntheticWheelEvent; break; case TOP_COPY: case TOP_CUT: case TOP_PASTE: EventConstructor = SyntheticClipboardEvent; break; case TOP_GOT_POINTER_CAPTURE: case TOP_LOST_POINTER_CAPTURE: case TOP_POINTER_CANCEL: case TOP_POINTER_DOWN: case TOP_POINTER_MOVE: case TOP_POINTER_OUT: case TOP_POINTER_OVER: case TOP_POINTER_UP: EventConstructor = SyntheticPointerEvent; break; default: { if (knownHTMLTopLevelTypes.indexOf(topLevelType) === -1) { warningWithoutStack$1(false, 'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' + 'is likely caused by a bug in React. Please file an issue.', topLevelType); } } // HTML Events // @see http://www.w3.org/TR/html5/index.html#events-0 EventConstructor = SyntheticEvent; break; } var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget); accumulateTwoPhaseDispatches(event); return event; } }; var isInteractiveTopLevelEventType = SimpleEventPlugin.isInteractiveTopLevelEventType; var CALLBACK_BOOKKEEPING_POOL_SIZE = 10; var callbackBookkeepingPool = []; /** * Find the deepest React component completely containing the root of the * passed-in instance (for use when entire React trees are nested within each * other). If React trees are not nested, returns null. */ function findRootContainerNode(inst) { // TODO: It may be a good idea to cache this to prevent unnecessary DOM // traversal, but caching is difficult to do correctly without using a // mutation observer to listen for all DOM changes. while (inst.return) { inst = inst.return; } if (inst.tag !== HostRoot) { // This can happen if we're in a detached tree. return null; } return inst.stateNode.containerInfo; } // Used to store ancestor hierarchy in top level callback function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) { if (callbackBookkeepingPool.length) { var instance = callbackBookkeepingPool.pop(); instance.topLevelType = topLevelType; instance.nativeEvent = nativeEvent; instance.targetInst = targetInst; return instance; } return { topLevelType: topLevelType, nativeEvent: nativeEvent, targetInst: targetInst, ancestors: [] }; } function releaseTopLevelCallbackBookKeeping(instance) { instance.topLevelType = null; instance.nativeEvent = null; instance.targetInst = null; instance.ancestors.length = 0; if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) { callbackBookkeepingPool.push(instance); } } function handleTopLevel(bookKeeping) { var targetInst = bookKeeping.targetInst; // Loop through the hierarchy, in case there's any nested components. // It's important that we build the array of ancestors before calling any // event handlers, because event handlers can modify the DOM, leading to // inconsistencies with ReactMount's node cache. See #1105. var ancestor = targetInst; do { if (!ancestor) { bookKeeping.ancestors.push(ancestor); break; } var root = findRootContainerNode(ancestor); if (!root) { break; } bookKeeping.ancestors.push(ancestor); ancestor = getClosestInstanceFromNode(root); } while (ancestor); for (var i = 0; i < bookKeeping.ancestors.length; i++) { targetInst = bookKeeping.ancestors[i]; runExtractedEventsInBatch(bookKeeping.topLevelType, targetInst, bookKeeping.nativeEvent, getEventTarget(bookKeeping.nativeEvent)); } } // TODO: can we stop exporting these? var _enabled = true; function setEnabled(enabled) { _enabled = !!enabled; } function isEnabled() { return _enabled; } /** * Traps top-level events by using event bubbling. * * @param {number} topLevelType Number from `TopLevelEventTypes`. * @param {object} element Element on which to attach listener. * @return {?object} An object with a remove function which will forcefully * remove the listener. * @internal */ function trapBubbledEvent(topLevelType, element) { if (!element) { return null; } var dispatch = isInteractiveTopLevelEventType(topLevelType) ? dispatchInteractiveEvent : dispatchEvent; addEventBubbleListener(element, getRawEventName(topLevelType), // Check if interactive and wrap in interactiveUpdates dispatch.bind(null, topLevelType)); } /** * Traps a top-level event by using event capturing. * * @param {number} topLevelType Number from `TopLevelEventTypes`. * @param {object} element Element on which to attach listener. * @return {?object} An object with a remove function which will forcefully * remove the listener. * @internal */ function trapCapturedEvent(topLevelType, element) { if (!element) { return null; } var dispatch = isInteractiveTopLevelEventType(topLevelType) ? dispatchInteractiveEvent : dispatchEvent; addEventCaptureListener(element, getRawEventName(topLevelType), // Check if interactive and wrap in interactiveUpdates dispatch.bind(null, topLevelType)); } function dispatchInteractiveEvent(topLevelType, nativeEvent) { interactiveUpdates(dispatchEvent, topLevelType, nativeEvent); } function dispatchEvent(topLevelType, nativeEvent) { if (!_enabled) { return; } var nativeEventTarget = getEventTarget(nativeEvent); var targetInst = getClosestInstanceFromNode(nativeEventTarget); if (targetInst !== null && typeof targetInst.tag === 'number' && !isFiberMounted(targetInst)) { // If we get an event (ex: img onload) before committing that // component's mount, ignore it for now (that is, treat it as if it was an // event on a non-React tree). We might also consider queueing events and // dispatching them after the mount. targetInst = null; } var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst); try { // Event queue being processed in the same cycle allows // `preventDefault`. batchedUpdates(handleTopLevel, bookKeeping); } finally { releaseTopLevelCallbackBookKeeping(bookKeeping); } } /** * Summary of `ReactBrowserEventEmitter` event handling: * * - Top-level delegation is used to trap most native browser events. This * may only occur in the main thread and is the responsibility of * ReactDOMEventListener, which is injected and can therefore support * pluggable event sources. This is the only work that occurs in the main * thread. * * - We normalize and de-duplicate events to account for browser quirks. This * may be done in the worker thread. * * - Forward these native events (with the associated top-level type used to * trap it) to `EventPluginHub`, which in turn will ask plugins if they want * to extract any synthetic events. * * - The `EventPluginHub` will then process each event by annotating them with * "dispatches", a sequence of listeners and IDs that care about that event. * * - The `EventPluginHub` then dispatches the events. * * Overview of React and the event system: * * +------------+ . * | DOM | . * +------------+ . * | . * v . * +------------+ . * | ReactEvent | . * | Listener | . * +------------+ . +-----------+ * | . +--------+|SimpleEvent| * | . | |Plugin | * +-----|------+ . v +-----------+ * | | | . +--------------+ +------------+ * | +-----------.--->|EventPluginHub| | Event | * | | . | | +-----------+ | Propagators| * | ReactEvent | . | | |TapEvent | |------------| * | Emitter | . | |<---+|Plugin | |other plugin| * | | . | | +-----------+ | utilities | * | +-----------.--->| | +------------+ * | | | . +--------------+ * +-----|------+ . ^ +-----------+ * | . | |Enter/Leave| * + . +-------+|Plugin | * +-------------+ . +-----------+ * | application | . * |-------------| . * | | . * | | . * +-------------+ . * . * React Core . General Purpose Event Plugin System */ var alreadyListeningTo = {}; var reactTopListenersCounter = 0; /** * To ensure no conflicts with other potential React instances on the page */ var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2); function getListeningForDocument(mountAt) { // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty` // directly. if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) { mountAt[topListenersIDKey] = reactTopListenersCounter++; alreadyListeningTo[mountAt[topListenersIDKey]] = {}; } return alreadyListeningTo[mountAt[topListenersIDKey]]; } /** * We listen for bubbled touch events on the document object. * * Firefox v8.01 (and possibly others) exhibited strange behavior when * mounting `onmousemove` events at some node that was not the document * element. The symptoms were that if your mouse is not moving over something * contained within that mount point (for example on the background) the * top-level listeners for `onmousemove` won't be called. However, if you * register the `mousemove` on the document object, then it will of course * catch all `mousemove`s. This along with iOS quirks, justifies restricting * top-level listeners to the document object only, at least for these * movement types of events and possibly all events. * * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html * * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but * they bubble to document. * * @param {string} registrationName Name of listener (e.g. `onClick`). * @param {object} mountAt Container where to mount the listener */ function listenTo(registrationName, mountAt) { var isListening = getListeningForDocument(mountAt); var dependencies = registrationNameDependencies[registrationName]; for (var i = 0; i < dependencies.length; i++) { var dependency = dependencies[i]; if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) { switch (dependency) { case TOP_SCROLL: trapCapturedEvent(TOP_SCROLL, mountAt); break; case TOP_FOCUS: case TOP_BLUR: trapCapturedEvent(TOP_FOCUS, mountAt); trapCapturedEvent(TOP_BLUR, mountAt); // We set the flag for a single dependency later in this function, // but this ensures we mark both as attached rather than just one. isListening[TOP_BLUR] = true; isListening[TOP_FOCUS] = true; break; case TOP_CANCEL: case TOP_CLOSE: if (isEventSupported(getRawEventName(dependency))) { trapCapturedEvent(dependency, mountAt); } break; case TOP_INVALID: case TOP_SUBMIT: case TOP_RESET: // We listen to them on the target DOM elements. // Some of them bubble so we don't want them to fire twice. break; default: // By default, listen on the top level to all non-media events. // Media events don't bubble so adding the listener wouldn't do anything. var isMediaEvent = mediaEventTypes.indexOf(dependency) !== -1; if (!isMediaEvent) { trapBubbledEvent(dependency, mountAt); } break; } isListening[dependency] = true; } } } function isListeningToAllDependencies(registrationName, mountAt) { var isListening = getListeningForDocument(mountAt); var dependencies = registrationNameDependencies[registrationName]; for (var i = 0; i < dependencies.length; i++) { var dependency = dependencies[i]; if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) { return false; } } return true; } function getActiveElement(doc) { doc = doc || (typeof document !== 'undefined' ? document : undefined); if (typeof doc === 'undefined') { return null; } try { return doc.activeElement || doc.body; } catch (e) { return doc.body; } } /** * Given any node return the first leaf node without children. * * @param {DOMElement|DOMTextNode} node * @return {DOMElement|DOMTextNode} */ function getLeafNode(node) { while (node && node.firstChild) { node = node.firstChild; } return node; } /** * Get the next sibling within a container. This will walk up the * DOM if a node's siblings have been exhausted. * * @param {DOMElement|DOMTextNode} node * @return {?DOMElement|DOMTextNode} */ function getSiblingNode(node) { while (node) { if (node.nextSibling) { return node.nextSibling; } node = node.parentNode; } } /** * Get object describing the nodes which contain characters at offset. * * @param {DOMElement|DOMTextNode} root * @param {number} offset * @return {?object} */ function getNodeForCharacterOffset(root, offset) { var node = getLeafNode(root); var nodeStart = 0; var nodeEnd = 0; while (node) { if (node.nodeType === TEXT_NODE) { nodeEnd = nodeStart + node.textContent.length; if (nodeStart <= offset && nodeEnd >= offset) { return { node: node, offset: offset - nodeStart }; } nodeStart = nodeEnd; } node = getLeafNode(getSiblingNode(node)); } } /** * @param {DOMElement} outerNode * @return {?object} */ function getOffsets(outerNode) { var ownerDocument = outerNode.ownerDocument; var win = ownerDocument && ownerDocument.defaultView || window; var selection = win.getSelection && win.getSelection(); if (!selection || selection.rangeCount === 0) { return null; } var anchorNode = selection.anchorNode, anchorOffset = selection.anchorOffset, focusNode = selection.focusNode, focusOffset = selection.focusOffset; // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the // up/down buttons on an . Anonymous divs do not seem to // expose properties, triggering a "Permission denied error" if any of its // properties are accessed. The only seemingly possible way to avoid erroring // is to access a property that typically works for non-anonymous divs and // catch any error that may otherwise arise. See // https://bugzilla.mozilla.org/show_bug.cgi?id=208427 try { /* eslint-disable no-unused-expressions */ anchorNode.nodeType; focusNode.nodeType; /* eslint-enable no-unused-expressions */ } catch (e) { return null; } return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset); } /** * Returns {start, end} where `start` is the character/codepoint index of * (anchorNode, anchorOffset) within the textContent of `outerNode`, and * `end` is the index of (focusNode, focusOffset). * * Returns null if you pass in garbage input but we should probably just crash. * * Exported only for testing. */ function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode, focusOffset) { var length = 0; var start = -1; var end = -1; var indexWithinAnchor = 0; var indexWithinFocus = 0; var node = outerNode; var parentNode = null; outer: while (true) { var next = null; while (true) { if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) { start = length + anchorOffset; } if (node === focusNode && (focusOffset === 0 || node.nodeType === TEXT_NODE)) { end = length + focusOffset; } if (node.nodeType === TEXT_NODE) { length += node.nodeValue.length; } if ((next = node.firstChild) === null) { break; } // Moving from `node` to its first child `next`. parentNode = node; node = next; } while (true) { if (node === outerNode) { // If `outerNode` has children, this is always the second time visiting // it. If it has no children, this is still the first loop, and the only // valid selection is anchorNode and focusNode both equal to this node // and both offsets 0, in which case we will have handled above. break outer; } if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) { start = length; } if (parentNode === focusNode && ++indexWithinFocus === focusOffset) { end = length; } if ((next = node.nextSibling) !== null) { break; } node = parentNode; parentNode = node.parentNode; } // Moving from `node` to its next sibling `next`. node = next; } if (start === -1 || end === -1) { // This should never happen. (Would happen if the anchor/focus nodes aren't // actually inside the passed-in node.) return null; } return { start: start, end: end }; } /** * In modern non-IE browsers, we can support both forward and backward * selections. * * Note: IE10+ supports the Selection object, but it does not support * the `extend` method, which means that even in modern IE, it's not possible * to programmatically create a backward selection. Thus, for all IE * versions, we use the old IE API to create our selections. * * @param {DOMElement|DOMTextNode} node * @param {object} offsets */ function setOffsets(node, offsets) { var doc = node.ownerDocument || document; var win = doc && doc.defaultView || window; // Edge fails with "Object expected" in some scenarios. // (For instance: TinyMCE editor used in a list component that supports pasting to add more, // fails when pasting 100+ items) if (!win.getSelection) { return; } var selection = win.getSelection(); var length = node.textContent.length; var start = Math.min(offsets.start, length); var end = offsets.end === undefined ? start : Math.min(offsets.end, length); // IE 11 uses modern selection, but doesn't support the extend method. // Flip backward selections, so we can set with a single range. if (!selection.extend && start > end) { var temp = end; end = start; start = temp; } var startMarker = getNodeForCharacterOffset(node, start); var endMarker = getNodeForCharacterOffset(node, end); if (startMarker && endMarker) { if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) { return; } var range = doc.createRange(); range.setStart(startMarker.node, startMarker.offset); selection.removeAllRanges(); if (start > end) { selection.addRange(range); selection.extend(endMarker.node, endMarker.offset); } else { range.setEnd(endMarker.node, endMarker.offset); selection.addRange(range); } } } function isTextNode(node) { return node && node.nodeType === TEXT_NODE; } function containsNode(outerNode, innerNode) { if (!outerNode || !innerNode) { return false; } else if (outerNode === innerNode) { return true; } else if (isTextNode(outerNode)) { return false; } else if (isTextNode(innerNode)) { return containsNode(outerNode, innerNode.parentNode); } else if ('contains' in outerNode) { return outerNode.contains(innerNode); } else if (outerNode.compareDocumentPosition) { return !!(outerNode.compareDocumentPosition(innerNode) & 16); } else { return false; } } function isInDocument(node) { return node && node.ownerDocument && containsNode(node.ownerDocument.documentElement, node); } function getActiveElementDeep() { var win = window; var element = getActiveElement(); while (element instanceof win.HTMLIFrameElement) { // Accessing the contentDocument of a HTMLIframeElement can cause the browser // to throw, e.g. if it has a cross-origin src attribute try { win = element.contentDocument.defaultView; } catch (e) { return element; } element = getActiveElement(win.document); } return element; } /** * @ReactInputSelection: React input selection module. Based on Selection.js, * but modified to be suitable for react and has a couple of bug fixes (doesn't * assume buttons have range selections allowed). * Input selection module for React. */ /** * @hasSelectionCapabilities: we get the element types that support selection * from https://html.spec.whatwg.org/#do-not-apply, looking at `selectionStart` * and `selectionEnd` rows. */ function hasSelectionCapabilities(elem) { var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase(); return nodeName && (nodeName === 'input' && (elem.type === 'text' || elem.type === 'search' || elem.type === 'tel' || elem.type === 'url' || elem.type === 'password') || nodeName === 'textarea' || elem.contentEditable === 'true'); } function getSelectionInformation() { var focusedElem = getActiveElementDeep(); return { focusedElem: focusedElem, selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection$1(focusedElem) : null }; } /** * @restoreSelection: If any selection information was potentially lost, * restore it. This is useful when performing operations that could remove dom * nodes and place them back in, resulting in focus being lost. */ function restoreSelection(priorSelectionInformation) { var curFocusedElem = getActiveElementDeep(); var priorFocusedElem = priorSelectionInformation.focusedElem; var priorSelectionRange = priorSelectionInformation.selectionRange; if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) { if (priorSelectionRange !== null && hasSelectionCapabilities(priorFocusedElem)) { setSelection(priorFocusedElem, priorSelectionRange); } // Focusing a node can change the scroll position, which is undesirable var ancestors = []; var ancestor = priorFocusedElem; while (ancestor = ancestor.parentNode) { if (ancestor.nodeType === ELEMENT_NODE) { ancestors.push({ element: ancestor, left: ancestor.scrollLeft, top: ancestor.scrollTop }); } } if (typeof priorFocusedElem.focus === 'function') { priorFocusedElem.focus(); } for (var i = 0; i < ancestors.length; i++) { var info = ancestors[i]; info.element.scrollLeft = info.left; info.element.scrollTop = info.top; } } } /** * @getSelection: Gets the selection bounds of a focused textarea, input or * contentEditable node. * -@input: Look up selection bounds of this input * -@return {start: selectionStart, end: selectionEnd} */ function getSelection$1(input) { var selection = void 0; if ('selectionStart' in input) { // Modern browser with input or textarea. selection = { start: input.selectionStart, end: input.selectionEnd }; } else { // Content editable or old IE textarea. selection = getOffsets(input); } return selection || { start: 0, end: 0 }; } /** * @setSelection: Sets the selection bounds of a textarea or input and focuses * the input. * -@input Set selection bounds of this input or textarea * -@offsets Object of same form that is returned from get* */ function setSelection(input, offsets) { var start = offsets.start, end = offsets.end; if (end === undefined) { end = start; } if ('selectionStart' in input) { input.selectionStart = start; input.selectionEnd = Math.min(end, input.value.length); } else { setOffsets(input, offsets); } } var skipSelectionChangeEvent = canUseDOM && 'documentMode' in document && document.documentMode <= 11; var eventTypes$3 = { select: { phasedRegistrationNames: { bubbled: 'onSelect', captured: 'onSelectCapture' }, dependencies: [TOP_BLUR, TOP_CONTEXT_MENU, TOP_DRAG_END, TOP_FOCUS, TOP_KEY_DOWN, TOP_KEY_UP, TOP_MOUSE_DOWN, TOP_MOUSE_UP, TOP_SELECTION_CHANGE] } }; var activeElement$1 = null; var activeElementInst$1 = null; var lastSelection = null; var mouseDown = false; /** * Get an object which is a unique representation of the current selection. * * The return value will not be consistent across nodes or browsers, but * two identical selections on the same node will return identical objects. * * @param {DOMElement} node * @return {object} */ function getSelection(node) { if ('selectionStart' in node && hasSelectionCapabilities(node)) { return { start: node.selectionStart, end: node.selectionEnd }; } else { var win = node.ownerDocument && node.ownerDocument.defaultView || window; var selection = win.getSelection(); return { anchorNode: selection.anchorNode, anchorOffset: selection.anchorOffset, focusNode: selection.focusNode, focusOffset: selection.focusOffset }; } } /** * Get document associated with the event target. * * @param {object} nativeEventTarget * @return {Document} */ function getEventTargetDocument(eventTarget) { return eventTarget.window === eventTarget ? eventTarget.document : eventTarget.nodeType === DOCUMENT_NODE ? eventTarget : eventTarget.ownerDocument; } /** * Poll selection to see whether it's changed. * * @param {object} nativeEvent * @param {object} nativeEventTarget * @return {?SyntheticEvent} */ function constructSelectEvent(nativeEvent, nativeEventTarget) { // Ensure we have the right element, and that the user is not dragging a // selection (this matches native `select` event behavior). In HTML5, select // fires only on input and textarea thus if there's no focused element we // won't dispatch. var doc = getEventTargetDocument(nativeEventTarget); if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement(doc)) { return null; } // Only fire when selection has actually changed. var currentSelection = getSelection(activeElement$1); if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) { lastSelection = currentSelection; var syntheticEvent = SyntheticEvent.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget); syntheticEvent.type = 'select'; syntheticEvent.target = activeElement$1; accumulateTwoPhaseDispatches(syntheticEvent); return syntheticEvent; } return null; } /** * This plugin creates an `onSelect` event that normalizes select events * across form elements. * * Supported elements are: * - input (see `isTextInputElement`) * - textarea * - contentEditable * * This differs from native browser implementations in the following ways: * - Fires on contentEditable fields as well as inputs. * - Fires for collapsed selection. * - Fires after user input. */ var SelectEventPlugin = { eventTypes: eventTypes$3, extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { var doc = getEventTargetDocument(nativeEventTarget); // Track whether all listeners exists for this plugin. If none exist, we do // not extract events. See #3639. if (!doc || !isListeningToAllDependencies('onSelect', doc)) { return null; } var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window; switch (topLevelType) { // Track the input node that has focus. case TOP_FOCUS: if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') { activeElement$1 = targetNode; activeElementInst$1 = targetInst; lastSelection = null; } break; case TOP_BLUR: activeElement$1 = null; activeElementInst$1 = null; lastSelection = null; break; // Don't fire the event while the user is dragging. This matches the // semantics of the native select event. case TOP_MOUSE_DOWN: mouseDown = true; break; case TOP_CONTEXT_MENU: case TOP_MOUSE_UP: case TOP_DRAG_END: mouseDown = false; return constructSelectEvent(nativeEvent, nativeEventTarget); // Chrome and IE fire non-standard event when selection is changed (and // sometimes when it hasn't). IE's event fires out of order with respect // to key and input events on deletion, so we discard it. // // Firefox doesn't support selectionchange, so check selection status // after each key entry. The selection changes after keydown and before // keyup, but we check on keydown as well in the case of holding down a // key, when multiple keydown events are fired but only one keyup is. // This is also our approach for IE handling, for the reason above. case TOP_SELECTION_CHANGE: if (skipSelectionChangeEvent) { break; } // falls through case TOP_KEY_DOWN: case TOP_KEY_UP: return constructSelectEvent(nativeEvent, nativeEventTarget); } return null; } }; /** * Inject modules for resolving DOM hierarchy and plugin ordering. */ injection.injectEventPluginOrder(DOMEventPluginOrder); setComponentTree(getFiberCurrentPropsFromNode$1, getInstanceFromNode$1, getNodeFromInstance$1); /** * Some important event plugins included by default (without having to require * them). */ injection.injectEventPluginsByName({ SimpleEventPlugin: SimpleEventPlugin, EnterLeaveEventPlugin: EnterLeaveEventPlugin, ChangeEventPlugin: ChangeEventPlugin, SelectEventPlugin: SelectEventPlugin, BeforeInputEventPlugin: BeforeInputEventPlugin }); var didWarnSelectedSetOnOption = false; var didWarnInvalidChild = false; function flattenChildren(children) { var content = ''; // Flatten children. We'll warn if they are invalid // during validateProps() which runs for hydration too. // Note that this would throw on non-element objects. // Elements are stringified (which is normally irrelevant // but matters for ). React.Children.forEach(children, function (child) { if (child == null) { return; } content += child; // Note: we don't warn about invalid children here. // Instead, this is done separately below so that // it happens during the hydration codepath too. }); return content; } /** * Implements an