does.\n contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText';\n }\n return contentKey;\n}\n\nmodule.exports = getTextContentAccessor;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar _assign = require('object-assign');\n\nvar PooledClass = require('./PooledClass');\n\nvar getTextContentAccessor = require('./getTextContentAccessor');\n\n/**\n * This helper class stores information about text content of a target node,\n * allowing comparison of content before and after a given event.\n *\n * Identify the node where selection currently begins, then observe\n * both its text content and its current position in the DOM. Since the\n * browser may natively replace the target node during composition, we can\n * use its position to find its replacement.\n *\n * @param {DOMEventTarget} root\n */\nfunction FallbackCompositionState(root) {\n this._root = root;\n this._startText = this.getText();\n this._fallbackText = null;\n}\n\n_assign(FallbackCompositionState.prototype, {\n destructor: function () {\n this._root = null;\n this._startText = null;\n this._fallbackText = null;\n },\n\n /**\n * Get current text of input.\n *\n * @return {string}\n */\n getText: function () {\n if ('value' in this._root) {\n return this._root.value;\n }\n return this._root[getTextContentAccessor()];\n },\n\n /**\n * Determine the differing substring between the initially stored\n * text content and the current content.\n *\n * @return {string}\n */\n getData: function () {\n if (this._fallbackText) {\n return this._fallbackText;\n }\n\n var start;\n var startValue = this._startText;\n var startLength = startValue.length;\n var end;\n var endValue = this.getText();\n var endLength = endValue.length;\n\n for (start = 0; start < startLength; start++) {\n if (startValue[start] !== endValue[start]) {\n break;\n }\n }\n\n var minEnd = startLength - start;\n for (end = 1; end <= minEnd; end++) {\n if (startValue[startLength - end] !== endValue[endLength - end]) {\n break;\n }\n }\n\n var sliceTail = end > 1 ? 1 - end : undefined;\n this._fallbackText = endValue.slice(start, sliceTail);\n return this._fallbackText;\n }\n});\n\nPooledClass.addPoolingTo(FallbackCompositionState);\n\nmodule.exports = FallbackCompositionState;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar _assign = require('object-assign');\n\nvar PooledClass = require('./PooledClass');\n\nvar emptyFunction = require('fbjs/lib/emptyFunction');\nvar warning = require('fbjs/lib/warning');\n\nvar didWarnForAddedNewProperty = false;\nvar isProxySupported = typeof Proxy === 'function';\n\nvar shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances'];\n\n/**\n * @interface Event\n * @see http://www.w3.org/TR/DOM-Level-3-Events/\n */\nvar EventInterface = {\n type: null,\n target: null,\n // currentTarget is set when dispatching; no use in copying it here\n currentTarget: emptyFunction.thatReturnsNull,\n eventPhase: null,\n bubbles: null,\n cancelable: null,\n timeStamp: function (event) {\n return event.timeStamp || Date.now();\n },\n defaultPrevented: null,\n isTrusted: null\n};\n\n/**\n * Synthetic events are dispatched by event plugins, typically in response to a\n * top-level event delegation handler.\n *\n * These systems should generally use pooling to reduce the frequency of garbage\n * collection. The system should check `isPersistent` to determine whether the\n * event should be released into the pool after being dispatched. Users that\n * need a persisted event should invoke `persist`.\n *\n * Synthetic events (and subclasses) implement the DOM Level 3 Events API by\n * normalizing browser quirks. Subclasses do not necessarily have to implement a\n * DOM interface; custom application-specific events can also subclass this.\n *\n * @param {object} dispatchConfig Configuration used to dispatch this event.\n * @param {*} targetInst Marker identifying the event target.\n * @param {object} nativeEvent Native browser event.\n * @param {DOMEventTarget} nativeEventTarget Target node.\n */\nfunction SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {\n if (process.env.NODE_ENV !== 'production') {\n // these have a getter/setter for warnings\n delete this.nativeEvent;\n delete this.preventDefault;\n delete this.stopPropagation;\n }\n\n this.dispatchConfig = dispatchConfig;\n this._targetInst = targetInst;\n this.nativeEvent = nativeEvent;\n\n var Interface = this.constructor.Interface;\n for (var propName in Interface) {\n if (!Interface.hasOwnProperty(propName)) {\n continue;\n }\n if (process.env.NODE_ENV !== 'production') {\n delete this[propName]; // this has a getter/setter for warnings\n }\n var normalize = Interface[propName];\n if (normalize) {\n this[propName] = normalize(nativeEvent);\n } else {\n if (propName === 'target') {\n this.target = nativeEventTarget;\n } else {\n this[propName] = nativeEvent[propName];\n }\n }\n }\n\n var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;\n if (defaultPrevented) {\n this.isDefaultPrevented = emptyFunction.thatReturnsTrue;\n } else {\n this.isDefaultPrevented = emptyFunction.thatReturnsFalse;\n }\n this.isPropagationStopped = emptyFunction.thatReturnsFalse;\n return this;\n}\n\n_assign(SyntheticEvent.prototype, {\n preventDefault: function () {\n this.defaultPrevented = true;\n var event = this.nativeEvent;\n if (!event) {\n return;\n }\n\n if (event.preventDefault) {\n event.preventDefault();\n // eslint-disable-next-line valid-typeof\n } else if (typeof event.returnValue !== 'unknown') {\n event.returnValue = false;\n }\n this.isDefaultPrevented = emptyFunction.thatReturnsTrue;\n },\n\n stopPropagation: function () {\n var event = this.nativeEvent;\n if (!event) {\n return;\n }\n\n if (event.stopPropagation) {\n event.stopPropagation();\n // eslint-disable-next-line valid-typeof\n } else if (typeof event.cancelBubble !== 'unknown') {\n // The ChangeEventPlugin registers a \"propertychange\" event for\n // IE. This event does not support bubbling or cancelling, and\n // any references to cancelBubble throw \"Member not found\". A\n // typeof check of \"unknown\" circumvents this issue (and is also\n // IE specific).\n event.cancelBubble = true;\n }\n\n this.isPropagationStopped = emptyFunction.thatReturnsTrue;\n },\n\n /**\n * We release all dispatched `SyntheticEvent`s after each event loop, adding\n * them back into the pool. This allows a way to hold onto a reference that\n * won't be added back into the pool.\n */\n persist: function () {\n this.isPersistent = emptyFunction.thatReturnsTrue;\n },\n\n /**\n * Checks if this event should be released back into the pool.\n *\n * @return {boolean} True if this should not be released, false otherwise.\n */\n isPersistent: emptyFunction.thatReturnsFalse,\n\n /**\n * `PooledClass` looks for `destructor` on each instance it releases.\n */\n destructor: function () {\n var Interface = this.constructor.Interface;\n for (var propName in Interface) {\n if (process.env.NODE_ENV !== 'production') {\n Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));\n } else {\n this[propName] = null;\n }\n }\n for (var i = 0; i < shouldBeReleasedProperties.length; i++) {\n this[shouldBeReleasedProperties[i]] = null;\n }\n if (process.env.NODE_ENV !== 'production') {\n Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));\n Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction));\n Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction));\n }\n }\n});\n\nSyntheticEvent.Interface = EventInterface;\n\n/**\n * Helper to reduce boilerplate when creating subclasses.\n *\n * @param {function} Class\n * @param {?object} Interface\n */\nSyntheticEvent.augmentClass = function (Class, Interface) {\n var Super = this;\n\n var E = function () {};\n E.prototype = Super.prototype;\n var prototype = new E();\n\n _assign(prototype, Class.prototype);\n Class.prototype = prototype;\n Class.prototype.constructor = Class;\n\n Class.Interface = _assign({}, Super.Interface, Interface);\n Class.augmentClass = Super.augmentClass;\n\n PooledClass.addPoolingTo(Class, PooledClass.fourArgumentPooler);\n};\n\n/** Proxying after everything set on SyntheticEvent\n * to resolve Proxy issue on some WebKit browsers\n * in which some Event properties are set to undefined (GH#10010)\n */\nif (process.env.NODE_ENV !== 'production') {\n if (isProxySupported) {\n /*eslint-disable no-func-assign */\n SyntheticEvent = new Proxy(SyntheticEvent, {\n construct: function (target, args) {\n return this.apply(target, Object.create(target.prototype), args);\n },\n apply: function (constructor, that, args) {\n return new Proxy(constructor.apply(that, args), {\n set: function (target, prop, value) {\n if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) {\n process.env.NODE_ENV !== 'production' ? warning(didWarnForAddedNewProperty || target.isPersistent(), \"This synthetic event is reused for performance reasons. If you're \" + \"seeing this, you're adding a new property in the synthetic event object. \" + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.') : void 0;\n didWarnForAddedNewProperty = true;\n }\n target[prop] = value;\n return true;\n }\n });\n }\n });\n /*eslint-enable no-func-assign */\n }\n}\n\nPooledClass.addPoolingTo(SyntheticEvent, PooledClass.fourArgumentPooler);\n\nmodule.exports = SyntheticEvent;\n\n/**\n * Helper to nullify syntheticEvent instance properties when destructing\n *\n * @param {object} SyntheticEvent\n * @param {String} propName\n * @return {object} defineProperty object\n */\nfunction getPooledWarningPropertyDefinition(propName, getVal) {\n var isFunction = typeof getVal === 'function';\n return {\n configurable: true,\n set: set,\n get: get\n };\n\n function set(val) {\n var action = isFunction ? 'setting the method' : 'setting the property';\n warn(action, 'This is effectively a no-op');\n return val;\n }\n\n function get() {\n var action = isFunction ? 'accessing the method' : 'accessing the property';\n var result = isFunction ? 'This is a no-op function' : 'This is set to null';\n warn(action, result);\n return getVal;\n }\n\n function warn(action, result) {\n var warningCondition = false;\n process.env.NODE_ENV !== 'production' ? warning(warningCondition, \"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;\n }\n}", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar SyntheticEvent = require('./SyntheticEvent');\n\n/**\n * @interface Event\n * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents\n */\nvar CompositionEventInterface = {\n data: null\n};\n\n/**\n * @param {object} dispatchConfig Configuration used to dispatch this event.\n * @param {string} dispatchMarker Marker identifying the event target.\n * @param {object} nativeEvent Native browser event.\n * @extends {SyntheticUIEvent}\n */\nfunction SyntheticCompositionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {\n return SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);\n}\n\nSyntheticEvent.augmentClass(SyntheticCompositionEvent, CompositionEventInterface);\n\nmodule.exports = SyntheticCompositionEvent;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar SyntheticEvent = require('./SyntheticEvent');\n\n/**\n * @interface Event\n * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105\n * /#events-inputevents\n */\nvar InputEventInterface = {\n data: null\n};\n\n/**\n * @param {object} dispatchConfig Configuration used to dispatch this event.\n * @param {string} dispatchMarker Marker identifying the event target.\n * @param {object} nativeEvent Native browser event.\n * @extends {SyntheticUIEvent}\n */\nfunction SyntheticInputEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {\n return SyntheticEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);\n}\n\nSyntheticEvent.augmentClass(SyntheticInputEvent, InputEventInterface);\n\nmodule.exports = SyntheticInputEvent;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar EventPropagators = require('./EventPropagators');\nvar ExecutionEnvironment = require('fbjs/lib/ExecutionEnvironment');\nvar FallbackCompositionState = require('./FallbackCompositionState');\nvar SyntheticCompositionEvent = require('./SyntheticCompositionEvent');\nvar SyntheticInputEvent = require('./SyntheticInputEvent');\n\nvar END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space\nvar START_KEYCODE = 229;\n\nvar canUseCompositionEvent = ExecutionEnvironment.canUseDOM && 'CompositionEvent' in window;\n\nvar documentMode = null;\nif (ExecutionEnvironment.canUseDOM && 'documentMode' in document) {\n documentMode = document.documentMode;\n}\n\n// Webkit offers a very useful `textInput` event that can be used to\n// directly represent `beforeInput`. The IE `textinput` event is not as\n// useful, so we don't use it.\nvar canUseTextInputEvent = ExecutionEnvironment.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto();\n\n// In IE9+, we have access to composition events, but the data supplied\n// by the native compositionend event may be incorrect. Japanese ideographic\n// spaces, for instance (\\u3000) are not recorded correctly.\nvar useFallbackCompositionData = ExecutionEnvironment.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);\n\n/**\n * Opera <= 12 includes TextEvent in window, but does not fire\n * text input events. Rely on keypress instead.\n */\nfunction isPresto() {\n var opera = window.opera;\n return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12;\n}\n\nvar SPACEBAR_CODE = 32;\nvar SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);\n\n// Events and their corresponding property names.\nvar eventTypes = {\n beforeInput: {\n phasedRegistrationNames: {\n bubbled: 'onBeforeInput',\n captured: 'onBeforeInputCapture'\n },\n dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste']\n },\n compositionEnd: {\n phasedRegistrationNames: {\n bubbled: 'onCompositionEnd',\n captured: 'onCompositionEndCapture'\n },\n dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']\n },\n compositionStart: {\n phasedRegistrationNames: {\n bubbled: 'onCompositionStart',\n captured: 'onCompositionStartCapture'\n },\n dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']\n },\n compositionUpdate: {\n phasedRegistrationNames: {\n bubbled: 'onCompositionUpdate',\n captured: 'onCompositionUpdateCapture'\n },\n dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']\n }\n};\n\n// Track whether we've ever handled a keypress on the space key.\nvar hasSpaceKeypress = false;\n\n/**\n * Return whether a native keypress event is assumed to be a command.\n * This is required because Firefox fires `keypress` events for key commands\n * (cut, copy, select-all, etc.) even though no character is inserted.\n */\nfunction isKeypressCommand(nativeEvent) {\n return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&\n // ctrlKey && altKey is equivalent to AltGr, and is not a command.\n !(nativeEvent.ctrlKey && nativeEvent.altKey);\n}\n\n/**\n * Translate native top level events into event types.\n *\n * @param {string} topLevelType\n * @return {object}\n */\nfunction getCompositionEventType(topLevelType) {\n switch (topLevelType) {\n case 'topCompositionStart':\n return eventTypes.compositionStart;\n case 'topCompositionEnd':\n return eventTypes.compositionEnd;\n case 'topCompositionUpdate':\n return eventTypes.compositionUpdate;\n }\n}\n\n/**\n * Does our fallback best-guess model think this event signifies that\n * composition has begun?\n *\n * @param {string} topLevelType\n * @param {object} nativeEvent\n * @return {boolean}\n */\nfunction isFallbackCompositionStart(topLevelType, nativeEvent) {\n return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE;\n}\n\n/**\n * Does our fallback mode think that this event is the end of composition?\n *\n * @param {string} topLevelType\n * @param {object} nativeEvent\n * @return {boolean}\n */\nfunction isFallbackCompositionEnd(topLevelType, nativeEvent) {\n switch (topLevelType) {\n case 'topKeyUp':\n // Command keys insert or clear IME input.\n return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;\n case 'topKeyDown':\n // Expect IME keyCode on each keydown. If we get any other\n // code we must have exited earlier.\n return nativeEvent.keyCode !== START_KEYCODE;\n case 'topKeyPress':\n case 'topMouseDown':\n case 'topBlur':\n // Events are not possible without cancelling IME.\n return true;\n default:\n return false;\n }\n}\n\n/**\n * Google Input Tools provides composition data via a CustomEvent,\n * with the `data` property populated in the `detail` object. If this\n * is available on the event object, use it. If not, this is a plain\n * composition event and we have nothing special to extract.\n *\n * @param {object} nativeEvent\n * @return {?string}\n */\nfunction getDataFromCustomEvent(nativeEvent) {\n var detail = nativeEvent.detail;\n if (typeof detail === 'object' && 'data' in detail) {\n return detail.data;\n }\n return null;\n}\n\n// Track the current IME composition fallback object, if any.\nvar currentComposition = null;\n\n/**\n * @return {?object} A SyntheticCompositionEvent.\n */\nfunction extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {\n var eventType;\n var fallbackData;\n\n if (canUseCompositionEvent) {\n eventType = getCompositionEventType(topLevelType);\n } else if (!currentComposition) {\n if (isFallbackCompositionStart(topLevelType, nativeEvent)) {\n eventType = eventTypes.compositionStart;\n }\n } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {\n eventType = eventTypes.compositionEnd;\n }\n\n if (!eventType) {\n return null;\n }\n\n if (useFallbackCompositionData) {\n // The current composition is stored statically and must not be\n // overwritten while composition continues.\n if (!currentComposition && eventType === eventTypes.compositionStart) {\n currentComposition = FallbackCompositionState.getPooled(nativeEventTarget);\n } else if (eventType === eventTypes.compositionEnd) {\n if (currentComposition) {\n fallbackData = currentComposition.getData();\n }\n }\n }\n\n var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);\n\n if (fallbackData) {\n // Inject data generated from fallback path into the synthetic event.\n // This matches the property of native CompositionEventInterface.\n event.data = fallbackData;\n } else {\n var customData = getDataFromCustomEvent(nativeEvent);\n if (customData !== null) {\n event.data = customData;\n }\n }\n\n EventPropagators.accumulateTwoPhaseDispatches(event);\n return event;\n}\n\n/**\n * @param {string} topLevelType Record from `EventConstants`.\n * @param {object} nativeEvent Native browser event.\n * @return {?string} The string corresponding to this `beforeInput` event.\n */\nfunction getNativeBeforeInputChars(topLevelType, nativeEvent) {\n switch (topLevelType) {\n case 'topCompositionEnd':\n return getDataFromCustomEvent(nativeEvent);\n case 'topKeyPress':\n /**\n * If native `textInput` events are available, our goal is to make\n * use of them. However, there is a special case: the spacebar key.\n * In Webkit, preventing default on a spacebar `textInput` event\n * cancels character insertion, but it *also* causes the browser\n * to fall back to its default spacebar behavior of scrolling the\n * page.\n *\n * Tracking at:\n * https://code.google.com/p/chromium/issues/detail?id=355103\n *\n * To avoid this issue, use the keypress event as if no `textInput`\n * event is available.\n */\n var which = nativeEvent.which;\n if (which !== SPACEBAR_CODE) {\n return null;\n }\n\n hasSpaceKeypress = true;\n return SPACEBAR_CHAR;\n\n case 'topTextInput':\n // Record the characters to be added to the DOM.\n var chars = nativeEvent.data;\n\n // If it's a spacebar character, assume that we have already handled\n // it at the keypress level and bail immediately. Android Chrome\n // doesn't give us keycodes, so we need to blacklist it.\n if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {\n return null;\n }\n\n return chars;\n\n default:\n // For other native event types, do nothing.\n return null;\n }\n}\n\n/**\n * For browsers that do not provide the `textInput` event, extract the\n * appropriate string to use for SyntheticInputEvent.\n *\n * @param {string} topLevelType Record from `EventConstants`.\n * @param {object} nativeEvent Native browser event.\n * @return {?string} The fallback string for this `beforeInput` event.\n */\nfunction getFallbackBeforeInputChars(topLevelType, nativeEvent) {\n // If we are currently composing (IME) and using a fallback to do so,\n // try to extract the composed characters from the fallback object.\n // If composition event is available, we extract a string only at\n // compositionevent, otherwise extract it at fallback events.\n if (currentComposition) {\n if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {\n var chars = currentComposition.getData();\n FallbackCompositionState.release(currentComposition);\n currentComposition = null;\n return chars;\n }\n return null;\n }\n\n switch (topLevelType) {\n case 'topPaste':\n // If a paste event occurs after a keypress, throw out the input\n // chars. Paste events should not lead to BeforeInput events.\n return null;\n case 'topKeyPress':\n /**\n * As of v27, Firefox may fire keypress events even when no character\n * will be inserted. A few possibilities:\n *\n * - `which` is `0`. Arrow keys, Esc key, etc.\n *\n * - `which` is the pressed key code, but no char is available.\n * Ex: 'AltGr + d` in Polish. There is no modified character for\n * this key combination and no character is inserted into the\n * document, but FF fires the keypress for char code `100` anyway.\n * No `input` event will occur.\n *\n * - `which` is the pressed key code, but a command combination is\n * being used. Ex: `Cmd+C`. No character is inserted, and no\n * `input` event will occur.\n */\n if (nativeEvent.which && !isKeypressCommand(nativeEvent)) {\n return String.fromCharCode(nativeEvent.which);\n }\n return null;\n case 'topCompositionEnd':\n return useFallbackCompositionData ? null : nativeEvent.data;\n default:\n return null;\n }\n}\n\n/**\n * Extract a SyntheticInputEvent for `beforeInput`, based on either native\n * `textInput` or fallback behavior.\n *\n * @return {?object} A SyntheticInputEvent.\n */\nfunction extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {\n var chars;\n\n if (canUseTextInputEvent) {\n chars = getNativeBeforeInputChars(topLevelType, nativeEvent);\n } else {\n chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);\n }\n\n // If no characters are being inserted, no BeforeInput event should\n // be fired.\n if (!chars) {\n return null;\n }\n\n var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);\n\n event.data = chars;\n EventPropagators.accumulateTwoPhaseDispatches(event);\n return event;\n}\n\n/**\n * Create an `onBeforeInput` event to match\n * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.\n *\n * This event plugin is based on the native `textInput` event\n * available in Chrome, Safari, Opera, and IE. This event fires after\n * `onKeyPress` and `onCompositionEnd`, but before `onInput`.\n *\n * `beforeInput` is spec'd but not implemented in any browsers, and\n * the `input` event does not provide any useful information about what has\n * actually been added, contrary to the spec. Thus, `textInput` is the best\n * available event to identify the characters that have actually been inserted\n * into the target node.\n *\n * This plugin is also responsible for emitting `composition` events, thus\n * allowing us to share composition fallback code for both `beforeInput` and\n * `composition` event types.\n */\nvar BeforeInputEventPlugin = {\n eventTypes: eventTypes,\n\n extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {\n return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)];\n }\n};\n\nmodule.exports = BeforeInputEventPlugin;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\nvar _prodInvariant = require('./reactProdInvariant');\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar PooledClass = require('./PooledClass');\n\nvar invariant = require('fbjs/lib/invariant');\n\n/**\n * A specialized pseudo-event module to help keep track of components waiting to\n * be notified when their DOM representations are available for use.\n *\n * This implements `PooledClass`, so you should never need to instantiate this.\n * Instead, use `CallbackQueue.getPooled()`.\n *\n * @class ReactMountReady\n * @implements PooledClass\n * @internal\n */\n\nvar CallbackQueue = function () {\n function CallbackQueue(arg) {\n _classCallCheck(this, CallbackQueue);\n\n this._callbacks = null;\n this._contexts = null;\n this._arg = arg;\n }\n\n /**\n * Enqueues a callback to be invoked when `notifyAll` is invoked.\n *\n * @param {function} callback Invoked when `notifyAll` is invoked.\n * @param {?object} context Context to call `callback` with.\n * @internal\n */\n\n\n CallbackQueue.prototype.enqueue = function enqueue(callback, context) {\n this._callbacks = this._callbacks || [];\n this._callbacks.push(callback);\n this._contexts = this._contexts || [];\n this._contexts.push(context);\n };\n\n /**\n * Invokes all enqueued callbacks and clears the queue. This is invoked after\n * the DOM representation of a component has been created or updated.\n *\n * @internal\n */\n\n\n CallbackQueue.prototype.notifyAll = function notifyAll() {\n var callbacks = this._callbacks;\n var contexts = this._contexts;\n var arg = this._arg;\n if (callbacks && contexts) {\n !(callbacks.length === contexts.length) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Mismatched list of contexts in callback queue') : _prodInvariant('24') : void 0;\n this._callbacks = null;\n this._contexts = null;\n for (var i = 0; i < callbacks.length; i++) {\n callbacks[i].call(contexts[i], arg);\n }\n callbacks.length = 0;\n contexts.length = 0;\n }\n };\n\n CallbackQueue.prototype.checkpoint = function checkpoint() {\n return this._callbacks ? this._callbacks.length : 0;\n };\n\n CallbackQueue.prototype.rollback = function rollback(len) {\n if (this._callbacks && this._contexts) {\n this._callbacks.length = len;\n this._contexts.length = len;\n }\n };\n\n /**\n * Resets the internal queue.\n *\n * @internal\n */\n\n\n CallbackQueue.prototype.reset = function reset() {\n this._callbacks = null;\n this._contexts = null;\n };\n\n /**\n * `PooledClass` looks for this.\n */\n\n\n CallbackQueue.prototype.destructor = function destructor() {\n this.reset();\n };\n\n return CallbackQueue;\n}();\n\nmodule.exports = PooledClass.addPoolingTo(CallbackQueue);", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\nvar ReactFeatureFlags = {\n // When true, call console.time() before and .timeEnd() after each top-level\n // render (both initial renders and updates). Useful when looking at prod-mode\n // timeline profiles in Chrome, for example.\n logTopLevelRenders: false\n};\n\nmodule.exports = ReactFeatureFlags;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\nvar _prodInvariant = require('./reactProdInvariant');\n\nvar invariant = require('fbjs/lib/invariant');\n\n/**\n * @param {?object} object\n * @return {boolean} True if `object` is a valid owner.\n * @final\n */\nfunction isValidOwner(object) {\n return !!(object && typeof object.attachRef === 'function' && typeof object.detachRef === 'function');\n}\n\n/**\n * ReactOwners are capable of storing references to owned components.\n *\n * All components are capable of //being// referenced by owner components, but\n * only ReactOwner components are capable of //referencing// owned components.\n * The named reference is known as a \"ref\".\n *\n * Refs are available when mounted and updated during reconciliation.\n *\n * var MyComponent = React.createClass({\n * render: function() {\n * return (\n *
\n * \n *
\n * );\n * },\n * handleClick: function() {\n * this.refs.custom.handleClick();\n * },\n * componentDidMount: function() {\n * this.refs.custom.initialize();\n * }\n * });\n *\n * Refs should rarely be used. When refs are used, they should only be done to\n * control data that is not handled by React's data flow.\n *\n * @class ReactOwner\n */\nvar ReactOwner = {\n /**\n * Adds a component by ref to an owner component.\n *\n * @param {ReactComponent} component Component to reference.\n * @param {string} ref Name by which to refer to the component.\n * @param {ReactOwner} owner Component on which to record the ref.\n * @final\n * @internal\n */\n addComponentAsRefTo: function (component, ref, owner) {\n !isValidOwner(owner) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'addComponentAsRefTo(...): Only a ReactOwner can have refs. You might be adding a ref to a component that was not created inside a component\\'s `render` method, or you have multiple copies of React loaded (details: https://fb.me/react-refs-must-have-owner).') : _prodInvariant('119') : void 0;\n owner.attachRef(ref, component);\n },\n\n /**\n * Removes a component by ref from an owner component.\n *\n * @param {ReactComponent} component Component to dereference.\n * @param {string} ref Name of the ref to remove.\n * @param {ReactOwner} owner Component on which the ref is recorded.\n * @final\n * @internal\n */\n removeComponentAsRefFrom: function (component, ref, owner) {\n !isValidOwner(owner) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'removeComponentAsRefFrom(...): Only a ReactOwner can have refs. You might be removing a ref to a component that was not created inside a component\\'s `render` method, or you have multiple copies of React loaded (details: https://fb.me/react-refs-must-have-owner).') : _prodInvariant('120') : void 0;\n var ownerPublicInstance = owner.getPublicInstance();\n // Check that `component`'s owner is still alive and that `component` is still the current ref\n // because we do not want to detach the ref if another component stole it.\n if (ownerPublicInstance && ownerPublicInstance.refs[ref] === component.getPublicInstance()) {\n owner.detachRef(ref);\n }\n }\n};\n\nmodule.exports = ReactOwner;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\nvar ReactOwner = require('./ReactOwner');\n\nvar ReactRef = {};\n\nfunction attachRef(ref, component, owner) {\n if (typeof ref === 'function') {\n ref(component.getPublicInstance());\n } else {\n // Legacy ref\n ReactOwner.addComponentAsRefTo(component, ref, owner);\n }\n}\n\nfunction detachRef(ref, component, owner) {\n if (typeof ref === 'function') {\n ref(null);\n } else {\n // Legacy ref\n ReactOwner.removeComponentAsRefFrom(component, ref, owner);\n }\n}\n\nReactRef.attachRefs = function (instance, element) {\n if (element === null || typeof element !== 'object') {\n return;\n }\n var ref = element.ref;\n if (ref != null) {\n attachRef(ref, instance, element._owner);\n }\n};\n\nReactRef.shouldUpdateRefs = function (prevElement, nextElement) {\n // If either the owner or a `ref` has changed, make sure the newest owner\n // has stored a reference to `this`, and the previous owner (if different)\n // has forgotten the reference to `this`. We use the element instead\n // of the public this.props because the post processing cannot determine\n // a ref. The ref conceptually lives on the element.\n\n // TODO: Should this even be possible? The owner cannot change because\n // it's forbidden by shouldUpdateReactComponent. The ref can change\n // if you swap the keys of but not the refs. Reconsider where this check\n // is made. It probably belongs where the key checking and\n // instantiateReactComponent is done.\n\n var prevRef = null;\n var prevOwner = null;\n if (prevElement !== null && typeof prevElement === 'object') {\n prevRef = prevElement.ref;\n prevOwner = prevElement._owner;\n }\n\n var nextRef = null;\n var nextOwner = null;\n if (nextElement !== null && typeof nextElement === 'object') {\n nextRef = nextElement.ref;\n nextOwner = nextElement._owner;\n }\n\n return prevRef !== nextRef ||\n // If owner changes but we have an unchanged function ref, don't update refs\n typeof nextRef === 'string' && nextOwner !== prevOwner;\n};\n\nReactRef.detachRefs = function (instance, element) {\n if (element === null || typeof element !== 'object') {\n return;\n }\n var ref = element.ref;\n if (ref != null) {\n detachRef(ref, instance, element._owner);\n }\n};\n\nmodule.exports = ReactRef;", "/**\n * Copyright (c) 2016-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\n// Trust the developer to only use ReactInstrumentation with a __DEV__ check\n\nvar debugTool = null;\n\nif (process.env.NODE_ENV !== 'production') {\n var ReactDebugTool = require('./ReactDebugTool');\n debugTool = ReactDebugTool;\n}\n\nmodule.exports = { debugTool: debugTool };", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar ReactRef = require('./ReactRef');\nvar ReactInstrumentation = require('./ReactInstrumentation');\n\nvar warning = require('fbjs/lib/warning');\n\n/**\n * Helper to call ReactRef.attachRefs with this composite component, split out\n * to avoid allocations in the transaction mount-ready queue.\n */\nfunction attachRefs() {\n ReactRef.attachRefs(this, this._currentElement);\n}\n\nvar ReactReconciler = {\n /**\n * Initializes the component, renders markup, and registers event listeners.\n *\n * @param {ReactComponent} internalInstance\n * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction\n * @param {?object} the containing host component instance\n * @param {?object} info about the host container\n * @return {?string} Rendered markup to be inserted into the DOM.\n * @final\n * @internal\n */\n mountComponent: function (internalInstance, transaction, hostParent, hostContainerInfo, context, parentDebugID) // 0 in production and for roots\n {\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onBeforeMountComponent(internalInstance._debugID, internalInstance._currentElement, parentDebugID);\n }\n }\n var markup = internalInstance.mountComponent(transaction, hostParent, hostContainerInfo, context, parentDebugID);\n if (internalInstance._currentElement && internalInstance._currentElement.ref != null) {\n transaction.getReactMountReady().enqueue(attachRefs, internalInstance);\n }\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onMountComponent(internalInstance._debugID);\n }\n }\n return markup;\n },\n\n /**\n * Returns a value that can be passed to\n * ReactComponentEnvironment.replaceNodeWithMarkup.\n */\n getHostNode: function (internalInstance) {\n return internalInstance.getHostNode();\n },\n\n /**\n * Releases any resources allocated by `mountComponent`.\n *\n * @final\n * @internal\n */\n unmountComponent: function (internalInstance, safely) {\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onBeforeUnmountComponent(internalInstance._debugID);\n }\n }\n ReactRef.detachRefs(internalInstance, internalInstance._currentElement);\n internalInstance.unmountComponent(safely);\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onUnmountComponent(internalInstance._debugID);\n }\n }\n },\n\n /**\n * Update a component using a new element.\n *\n * @param {ReactComponent} internalInstance\n * @param {ReactElement} nextElement\n * @param {ReactReconcileTransaction} transaction\n * @param {object} context\n * @internal\n */\n receiveComponent: function (internalInstance, nextElement, transaction, context) {\n var prevElement = internalInstance._currentElement;\n\n if (nextElement === prevElement && context === internalInstance._context) {\n // Since elements are immutable after the owner is rendered,\n // we can do a cheap identity compare here to determine if this is a\n // superfluous reconcile. It's possible for state to be mutable but such\n // change should trigger an update of the owner which would recreate\n // the element. We explicitly check for the existence of an owner since\n // it's possible for an element created outside a composite to be\n // deeply mutated and reused.\n\n // TODO: Bailing out early is just a perf optimization right?\n // TODO: Removing the return statement should affect correctness?\n return;\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onBeforeUpdateComponent(internalInstance._debugID, nextElement);\n }\n }\n\n var refsChanged = ReactRef.shouldUpdateRefs(prevElement, nextElement);\n\n if (refsChanged) {\n ReactRef.detachRefs(internalInstance, prevElement);\n }\n\n internalInstance.receiveComponent(nextElement, transaction, context);\n\n if (refsChanged && internalInstance._currentElement && internalInstance._currentElement.ref != null) {\n transaction.getReactMountReady().enqueue(attachRefs, internalInstance);\n }\n\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onUpdateComponent(internalInstance._debugID);\n }\n }\n },\n\n /**\n * Flush any dirty changes in a component.\n *\n * @param {ReactComponent} internalInstance\n * @param {ReactReconcileTransaction} transaction\n * @internal\n */\n performUpdateIfNecessary: function (internalInstance, transaction, updateBatchNumber) {\n if (internalInstance._updateBatchNumber !== updateBatchNumber) {\n // The component's enqueued batch number should always be the current\n // batch or the following one.\n process.env.NODE_ENV !== 'production' ? warning(internalInstance._updateBatchNumber == null || internalInstance._updateBatchNumber === updateBatchNumber + 1, 'performUpdateIfNecessary: Unexpected batch number (current %s, ' + 'pending %s)', updateBatchNumber, internalInstance._updateBatchNumber) : void 0;\n return;\n }\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onBeforeUpdateComponent(internalInstance._debugID, internalInstance._currentElement);\n }\n }\n internalInstance.performUpdateIfNecessary(transaction);\n if (process.env.NODE_ENV !== 'production') {\n if (internalInstance._debugID !== 0) {\n ReactInstrumentation.debugTool.onUpdateComponent(internalInstance._debugID);\n }\n }\n }\n};\n\nmodule.exports = ReactReconciler;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n\n'use strict';\n\nvar _prodInvariant = require('./reactProdInvariant');\n\nvar invariant = require('fbjs/lib/invariant');\n\nvar OBSERVED_ERROR = {};\n\n/**\n * `Transaction` creates a black box that is able to wrap any method such that\n * certain invariants are maintained before and after the method is invoked\n * (Even if an exception is thrown while invoking the wrapped method). Whoever\n * instantiates a transaction can provide enforcers of the invariants at\n * creation time. The `Transaction` class itself will supply one additional\n * automatic invariant for you - the invariant that any transaction instance\n * should not be run while it is already being run. You would typically create a\n * single instance of a `Transaction` for reuse multiple times, that potentially\n * is used to wrap several different methods. Wrappers are extremely simple -\n * they only require implementing two methods.\n *\n *
\n * wrappers (injected at creation time)\n * + +\n * | |\n * +-----------------|--------|--------------+\n * | v | |\n * | +---------------+ | |\n * | +--| wrapper1 |---|----+ |\n * | | +---------------+ v | |\n * | | +-------------+ | |\n * | | +----| wrapper2 |--------+ |\n * | | | +-------------+ | | |\n * | | | | | |\n * | v v v v | wrapper\n * | +---+ +---+ +---------+ +---+ +---+ | invariants\n * perform(anyMethod) | | | | | | | | | | | | maintained\n * +----------------->|-|---|-|---|-->|anyMethod|---|---|-|---|-|-------->\n * | | | | | | | | | | | |\n * | | | | | | | | | | | |\n * | | | | | | | | | | | |\n * | +---+ +---+ +---------+ +---+ +---+ |\n * | initialize close |\n * +-----------------------------------------+\n *
\n *\n * Use cases:\n * - Preserving the input selection ranges before/after reconciliation.\n * Restoring selection even in the event of an unexpected error.\n * - Deactivating events while rearranging the DOM, preventing blurs/focuses,\n * while guaranteeing that afterwards, the event system is reactivated.\n * - Flushing a queue of collected DOM mutations to the main UI thread after a\n * reconciliation takes place in a worker thread.\n * - Invoking any collected `componentDidUpdate` callbacks after rendering new\n * content.\n * - (Future use case): Wrapping particular flushes of the `ReactWorker` queue\n * to preserve the `scrollTop` (an automatic scroll aware DOM).\n * - (Future use case): Layout calculations before and after DOM updates.\n *\n * Transactional plugin API:\n * - A module that has an `initialize` method that returns any precomputation.\n * - and a `close` method that accepts the precomputation. `close` is invoked\n * when the wrapped process is completed, or has failed.\n *\n * @param {Array
} transactionWrapper Wrapper modules\n * that implement `initialize` and `close`.\n * @return {Transaction} Single transaction for reuse in thread.\n *\n * @class Transaction\n */\nvar TransactionImpl = {\n /**\n * Sets up this instance so that it is prepared for collecting metrics. Does\n * so such that this setup method may be used on an instance that is already\n * initialized, in a way that does not consume additional memory upon reuse.\n * That can be useful if you decide to make your subclass of this mixin a\n * \"PooledClass\".\n */\n reinitializeTransaction: function () {\n this.transactionWrappers = this.getTransactionWrappers();\n if (this.wrapperInitData) {\n this.wrapperInitData.length = 0;\n } else {\n this.wrapperInitData = [];\n }\n this._isInTransaction = false;\n },\n\n _isInTransaction: false,\n\n /**\n * @abstract\n * @return {Array} Array of transaction wrappers.\n */\n getTransactionWrappers: null,\n\n isInTransaction: function () {\n return !!this._isInTransaction;\n },\n\n /* eslint-disable space-before-function-paren */\n\n /**\n * Executes the function within a safety window. Use this for the top level\n * methods that result in large amounts of computation/mutations that would\n * need to be safety checked. The optional arguments helps prevent the need\n * to bind in many cases.\n *\n * @param {function} method Member of scope to call.\n * @param {Object} scope Scope to invoke from.\n * @param {Object?=} a Argument to pass to the method.\n * @param {Object?=} b Argument to pass to the method.\n * @param {Object?=} c Argument to pass to the method.\n * @param {Object?=} d Argument to pass to the method.\n * @param {Object?=} e Argument to pass to the method.\n * @param {Object?=} f Argument to pass to the method.\n *\n * @return {*} Return value from `method`.\n */\n perform: function (method, scope, a, b, c, d, e, f) {\n /* eslint-enable space-before-function-paren */\n !!this.isInTransaction() ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Transaction.perform(...): Cannot initialize a transaction when there is already an outstanding transaction.') : _prodInvariant('27') : void 0;\n var errorThrown;\n var ret;\n try {\n this._isInTransaction = true;\n // Catching errors makes debugging more difficult, so we start with\n // errorThrown set to true before setting it to false after calling\n // close -- if it's still set to true in the finally block, it means\n // one of these calls threw.\n errorThrown = true;\n this.initializeAll(0);\n ret = method.call(scope, a, b, c, d, e, f);\n errorThrown = false;\n } finally {\n try {\n if (errorThrown) {\n // If `method` throws, prefer to show that stack trace over any thrown\n // by invoking `closeAll`.\n try {\n this.closeAll(0);\n } catch (err) {}\n } else {\n // Since `method` didn't throw, we don't want to silence the exception\n // here.\n this.closeAll(0);\n }\n } finally {\n this._isInTransaction = false;\n }\n }\n return ret;\n },\n\n initializeAll: function (startIndex) {\n var transactionWrappers = this.transactionWrappers;\n for (var i = startIndex; i < transactionWrappers.length; i++) {\n var wrapper = transactionWrappers[i];\n try {\n // Catching errors makes debugging more difficult, so we start with the\n // OBSERVED_ERROR state before overwriting it with the real return value\n // of initialize -- if it's still set to OBSERVED_ERROR in the finally\n // block, it means wrapper.initialize threw.\n this.wrapperInitData[i] = OBSERVED_ERROR;\n this.wrapperInitData[i] = wrapper.initialize ? wrapper.initialize.call(this) : null;\n } finally {\n if (this.wrapperInitData[i] === OBSERVED_ERROR) {\n // The initializer for wrapper i threw an error; initialize the\n // remaining wrappers but silence any exceptions from them to ensure\n // that the first error is the one to bubble up.\n try {\n this.initializeAll(i + 1);\n } catch (err) {}\n }\n }\n }\n },\n\n /**\n * Invokes each of `this.transactionWrappers.close[i]` functions, passing into\n * them the respective return values of `this.transactionWrappers.init[i]`\n * (`close`rs that correspond to initializers that failed will not be\n * invoked).\n */\n closeAll: function (startIndex) {\n !this.isInTransaction() ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Transaction.closeAll(): Cannot close transaction when none are open.') : _prodInvariant('28') : void 0;\n var transactionWrappers = this.transactionWrappers;\n for (var i = startIndex; i < transactionWrappers.length; i++) {\n var wrapper = transactionWrappers[i];\n var initData = this.wrapperInitData[i];\n var errorThrown;\n try {\n // Catching errors makes debugging more difficult, so we start with\n // errorThrown set to true before setting it to false after calling\n // close -- if it's still set to true in the finally block, it means\n // wrapper.close threw.\n errorThrown = true;\n if (initData !== OBSERVED_ERROR && wrapper.close) {\n wrapper.close.call(this, initData);\n }\n errorThrown = false;\n } finally {\n if (errorThrown) {\n // The closer for wrapper i threw an error; close the remaining\n // wrappers but silence any exceptions from them to ensure that the\n // first error is the one to bubble up.\n try {\n this.closeAll(i + 1);\n } catch (e) {}\n }\n }\n }\n this.wrapperInitData.length = 0;\n }\n};\n\nmodule.exports = TransactionImpl;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar _prodInvariant = require('./reactProdInvariant'),\n _assign = require('object-assign');\n\nvar CallbackQueue = require('./CallbackQueue');\nvar PooledClass = require('./PooledClass');\nvar ReactFeatureFlags = require('./ReactFeatureFlags');\nvar ReactReconciler = require('./ReactReconciler');\nvar Transaction = require('./Transaction');\n\nvar invariant = require('fbjs/lib/invariant');\n\nvar dirtyComponents = [];\nvar updateBatchNumber = 0;\nvar asapCallbackQueue = CallbackQueue.getPooled();\nvar asapEnqueued = false;\n\nvar batchingStrategy = null;\n\nfunction ensureInjected() {\n !(ReactUpdates.ReactReconcileTransaction && batchingStrategy) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactUpdates: must inject a reconcile transaction class and batching strategy') : _prodInvariant('123') : void 0;\n}\n\nvar NESTED_UPDATES = {\n initialize: function () {\n this.dirtyComponentsLength = dirtyComponents.length;\n },\n close: function () {\n if (this.dirtyComponentsLength !== dirtyComponents.length) {\n // Additional updates were enqueued by componentDidUpdate handlers or\n // similar; before our own UPDATE_QUEUEING wrapper closes, we want to run\n // these new updates so that if A's componentDidUpdate calls setState on\n // B, B will update before the callback A's updater provided when calling\n // setState.\n dirtyComponents.splice(0, this.dirtyComponentsLength);\n flushBatchedUpdates();\n } else {\n dirtyComponents.length = 0;\n }\n }\n};\n\nvar UPDATE_QUEUEING = {\n initialize: function () {\n this.callbackQueue.reset();\n },\n close: function () {\n this.callbackQueue.notifyAll();\n }\n};\n\nvar TRANSACTION_WRAPPERS = [NESTED_UPDATES, UPDATE_QUEUEING];\n\nfunction ReactUpdatesFlushTransaction() {\n this.reinitializeTransaction();\n this.dirtyComponentsLength = null;\n this.callbackQueue = CallbackQueue.getPooled();\n this.reconcileTransaction = ReactUpdates.ReactReconcileTransaction.getPooled(\n /* useCreateElement */true);\n}\n\n_assign(ReactUpdatesFlushTransaction.prototype, Transaction, {\n getTransactionWrappers: function () {\n return TRANSACTION_WRAPPERS;\n },\n\n destructor: function () {\n this.dirtyComponentsLength = null;\n CallbackQueue.release(this.callbackQueue);\n this.callbackQueue = null;\n ReactUpdates.ReactReconcileTransaction.release(this.reconcileTransaction);\n this.reconcileTransaction = null;\n },\n\n perform: function (method, scope, a) {\n // Essentially calls `this.reconcileTransaction.perform(method, scope, a)`\n // with this transaction's wrappers around it.\n return Transaction.perform.call(this, this.reconcileTransaction.perform, this.reconcileTransaction, method, scope, a);\n }\n});\n\nPooledClass.addPoolingTo(ReactUpdatesFlushTransaction);\n\nfunction batchedUpdates(callback, a, b, c, d, e) {\n ensureInjected();\n return batchingStrategy.batchedUpdates(callback, a, b, c, d, e);\n}\n\n/**\n * Array comparator for ReactComponents by mount ordering.\n *\n * @param {ReactComponent} c1 first component you're comparing\n * @param {ReactComponent} c2 second component you're comparing\n * @return {number} Return value usable by Array.prototype.sort().\n */\nfunction mountOrderComparator(c1, c2) {\n return c1._mountOrder - c2._mountOrder;\n}\n\nfunction runBatchedUpdates(transaction) {\n var len = transaction.dirtyComponentsLength;\n !(len === dirtyComponents.length) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Expected flush transaction\\'s stored dirty-components length (%s) to match dirty-components array length (%s).', len, dirtyComponents.length) : _prodInvariant('124', len, dirtyComponents.length) : void 0;\n\n // Since reconciling a component higher in the owner hierarchy usually (not\n // always -- see shouldComponentUpdate()) will reconcile children, reconcile\n // them before their children by sorting the array.\n dirtyComponents.sort(mountOrderComparator);\n\n // Any updates enqueued while reconciling must be performed after this entire\n // batch. Otherwise, if dirtyComponents is [A, B] where A has children B and\n // C, B could update twice in a single batch if C's render enqueues an update\n // to B (since B would have already updated, we should skip it, and the only\n // way we can know to do so is by checking the batch counter).\n updateBatchNumber++;\n\n for (var i = 0; i < len; i++) {\n // If a component is unmounted before pending changes apply, it will still\n // be here, but we assume that it has cleared its _pendingCallbacks and\n // that performUpdateIfNecessary is a noop.\n var component = dirtyComponents[i];\n\n // If performUpdateIfNecessary happens to enqueue any new updates, we\n // shouldn't execute the callbacks until the next render happens, so\n // stash the callbacks first\n var callbacks = component._pendingCallbacks;\n component._pendingCallbacks = null;\n\n var markerName;\n if (ReactFeatureFlags.logTopLevelRenders) {\n var namedComponent = component;\n // Duck type TopLevelWrapper. This is probably always true.\n if (component._currentElement.type.isReactTopLevelWrapper) {\n namedComponent = component._renderedComponent;\n }\n markerName = 'React update: ' + namedComponent.getName();\n console.time(markerName);\n }\n\n ReactReconciler.performUpdateIfNecessary(component, transaction.reconcileTransaction, updateBatchNumber);\n\n if (markerName) {\n console.timeEnd(markerName);\n }\n\n if (callbacks) {\n for (var j = 0; j < callbacks.length; j++) {\n transaction.callbackQueue.enqueue(callbacks[j], component.getPublicInstance());\n }\n }\n }\n}\n\nvar flushBatchedUpdates = function () {\n // ReactUpdatesFlushTransaction's wrappers will clear the dirtyComponents\n // array and perform any updates enqueued by mount-ready handlers (i.e.,\n // componentDidUpdate) but we need to check here too in order to catch\n // updates enqueued by setState callbacks and asap calls.\n while (dirtyComponents.length || asapEnqueued) {\n if (dirtyComponents.length) {\n var transaction = ReactUpdatesFlushTransaction.getPooled();\n transaction.perform(runBatchedUpdates, null, transaction);\n ReactUpdatesFlushTransaction.release(transaction);\n }\n\n if (asapEnqueued) {\n asapEnqueued = false;\n var queue = asapCallbackQueue;\n asapCallbackQueue = CallbackQueue.getPooled();\n queue.notifyAll();\n CallbackQueue.release(queue);\n }\n }\n};\n\n/**\n * Mark a component as needing a rerender, adding an optional callback to a\n * list of functions which will be executed once the rerender occurs.\n */\nfunction enqueueUpdate(component) {\n ensureInjected();\n\n // Various parts of our code (such as ReactCompositeComponent's\n // _renderValidatedComponent) assume that calls to render aren't nested;\n // verify that that's the case. (This is called by each top-level update\n // function, like setState, forceUpdate, etc.; creation and\n // destruction of top-level components is guarded in ReactMount.)\n\n if (!batchingStrategy.isBatchingUpdates) {\n batchingStrategy.batchedUpdates(enqueueUpdate, component);\n return;\n }\n\n dirtyComponents.push(component);\n if (component._updateBatchNumber == null) {\n component._updateBatchNumber = updateBatchNumber + 1;\n }\n}\n\n/**\n * Enqueue a callback to be run at the end of the current batching cycle. Throws\n * if no updates are currently being performed.\n */\nfunction asap(callback, context) {\n invariant(batchingStrategy.isBatchingUpdates, \"ReactUpdates.asap: Can't enqueue an asap callback in a context where\" + 'updates are not being batched.');\n asapCallbackQueue.enqueue(callback, context);\n asapEnqueued = true;\n}\n\nvar ReactUpdatesInjection = {\n injectReconcileTransaction: function (ReconcileTransaction) {\n !ReconcileTransaction ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactUpdates: must provide a reconcile transaction class') : _prodInvariant('126') : void 0;\n ReactUpdates.ReactReconcileTransaction = ReconcileTransaction;\n },\n\n injectBatchingStrategy: function (_batchingStrategy) {\n !_batchingStrategy ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactUpdates: must provide a batching strategy') : _prodInvariant('127') : void 0;\n !(typeof _batchingStrategy.batchedUpdates === 'function') ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactUpdates: must provide a batchedUpdates() function') : _prodInvariant('128') : void 0;\n !(typeof _batchingStrategy.isBatchingUpdates === 'boolean') ? process.env.NODE_ENV !== 'production' ? invariant(false, 'ReactUpdates: must provide an isBatchingUpdates boolean attribute') : _prodInvariant('129') : void 0;\n batchingStrategy = _batchingStrategy;\n }\n};\n\nvar ReactUpdates = {\n /**\n * React references `ReactReconcileTransaction` using this property in order\n * to allow dependency injection.\n *\n * @internal\n */\n ReactReconcileTransaction: null,\n\n batchedUpdates: batchedUpdates,\n enqueueUpdate: enqueueUpdate,\n flushBatchedUpdates: flushBatchedUpdates,\n injection: ReactUpdatesInjection,\n asap: asap\n};\n\nmodule.exports = ReactUpdates;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\nvar ReactDOMComponentTree = require('./ReactDOMComponentTree');\n\nfunction isCheckable(elem) {\n var type = elem.type;\n var nodeName = elem.nodeName;\n return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');\n}\n\nfunction getTracker(inst) {\n return inst._wrapperState.valueTracker;\n}\n\nfunction attachTracker(inst, tracker) {\n inst._wrapperState.valueTracker = tracker;\n}\n\nfunction detachTracker(inst) {\n inst._wrapperState.valueTracker = null;\n}\n\nfunction getValueFromNode(node) {\n var value;\n if (node) {\n value = isCheckable(node) ? '' + node.checked : node.value;\n }\n return value;\n}\n\nvar inputValueTracking = {\n // exposed for testing\n _getTrackerFromNode: function (node) {\n return getTracker(ReactDOMComponentTree.getInstanceFromNode(node));\n },\n\n\n track: function (inst) {\n if (getTracker(inst)) {\n return;\n }\n\n var node = ReactDOMComponentTree.getNodeFromInstance(inst);\n var valueField = isCheckable(node) ? 'checked' : 'value';\n var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);\n\n var currentValue = '' + node[valueField];\n\n // if someone has already defined a value or Safari, then bail\n // and don't track value will cause over reporting of changes,\n // but it's better then a hard failure\n // (needed for certain tests that spyOn input values and Safari)\n if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {\n return;\n }\n\n Object.defineProperty(node, valueField, {\n enumerable: descriptor.enumerable,\n configurable: true,\n get: function () {\n return descriptor.get.call(this);\n },\n set: function (value) {\n currentValue = '' + value;\n descriptor.set.call(this, value);\n }\n });\n\n attachTracker(inst, {\n getValue: function () {\n return currentValue;\n },\n setValue: function (value) {\n currentValue = '' + value;\n },\n stopTracking: function () {\n detachTracker(inst);\n delete node[valueField];\n }\n });\n },\n\n updateValueIfChanged: function (inst) {\n if (!inst) {\n return false;\n }\n var tracker = getTracker(inst);\n\n if (!tracker) {\n inputValueTracking.track(inst);\n return true;\n }\n\n var lastValue = tracker.getValue();\n var nextValue = getValueFromNode(ReactDOMComponentTree.getNodeFromInstance(inst));\n\n if (nextValue !== lastValue) {\n tracker.setValue(nextValue);\n return true;\n }\n\n return false;\n },\n stopTracking: function (inst) {\n var tracker = getTracker(inst);\n if (tracker) {\n tracker.stopTracking();\n }\n }\n};\n\nmodule.exports = inputValueTracking;", "/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n'use strict';\n\n/**\n * Gets the target node from a native browser event by accounting for\n * inconsistencies in browser DOM APIs.\n *\n * @param {object} nativeEvent Native browser event.\n * @return {DOMEventTarget} Target node.\n */\n\nfunction getEventTarget(nativeEvent) {\n var target = nativeEvent.target || nativeEvent.srcElement || window;\n\n // Normalize SVG