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Diffstat (limited to 'node_modules/react-dom/lib/ReactBrowserEventEmitter.js')
| -rw-r--r-- | node_modules/react-dom/lib/ReactBrowserEventEmitter.js | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/node_modules/react-dom/lib/ReactBrowserEventEmitter.js b/node_modules/react-dom/lib/ReactBrowserEventEmitter.js deleted file mode 100644 index ac2990c15..000000000 --- a/node_modules/react-dom/lib/ReactBrowserEventEmitter.js +++ /dev/null @@ -1,323 +0,0 @@ -/** - * Copyright 2013-present, Facebook, Inc. - * All rights reserved. - * - * This source code is licensed under the BSD-style license found in the - * LICENSE file in the root directory of this source tree. An additional grant - * of patent rights can be found in the PATENTS file in the same directory. - * - */ - -'use strict'; - -var _assign = require('object-assign'); - -var EventPluginRegistry = require('./EventPluginRegistry'); -var ReactEventEmitterMixin = require('./ReactEventEmitterMixin'); -var ViewportMetrics = require('./ViewportMetrics'); - -var getVendorPrefixedEventName = require('./getVendorPrefixedEventName'); -var isEventSupported = require('./isEventSupported'); - -/** - * 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 - * ReactEventListener, 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 hasEventPageXY; -var alreadyListeningTo = {}; -var isMonitoringScrollValue = false; -var reactTopListenersCounter = 0; - -// For events like 'submit' which don't consistently bubble (which we trap at a -// lower node than `document`), binding at `document` would cause duplicate -// events so we don't include them here -var topEventMapping = { - topAbort: 'abort', - topAnimationEnd: getVendorPrefixedEventName('animationend') || 'animationend', - topAnimationIteration: getVendorPrefixedEventName('animationiteration') || 'animationiteration', - topAnimationStart: getVendorPrefixedEventName('animationstart') || 'animationstart', - topBlur: 'blur', - topCanPlay: 'canplay', - topCanPlayThrough: 'canplaythrough', - topChange: 'change', - topClick: 'click', - topCompositionEnd: 'compositionend', - topCompositionStart: 'compositionstart', - topCompositionUpdate: 'compositionupdate', - topContextMenu: 'contextmenu', - topCopy: 'copy', - topCut: 'cut', - topDoubleClick: 'dblclick', - topDrag: 'drag', - topDragEnd: 'dragend', - topDragEnter: 'dragenter', - topDragExit: 'dragexit', - topDragLeave: 'dragleave', - topDragOver: 'dragover', - topDragStart: 'dragstart', - topDrop: 'drop', - topDurationChange: 'durationchange', - topEmptied: 'emptied', - topEncrypted: 'encrypted', - topEnded: 'ended', - topError: 'error', - topFocus: 'focus', - topInput: 'input', - topKeyDown: 'keydown', - topKeyPress: 'keypress', - topKeyUp: 'keyup', - topLoadedData: 'loadeddata', - topLoadedMetadata: 'loadedmetadata', - topLoadStart: 'loadstart', - topMouseDown: 'mousedown', - topMouseMove: 'mousemove', - topMouseOut: 'mouseout', - topMouseOver: 'mouseover', - topMouseUp: 'mouseup', - topPaste: 'paste', - topPause: 'pause', - topPlay: 'play', - topPlaying: 'playing', - topProgress: 'progress', - topRateChange: 'ratechange', - topScroll: 'scroll', - topSeeked: 'seeked', - topSeeking: 'seeking', - topSelectionChange: 'selectionchange', - topStalled: 'stalled', - topSuspend: 'suspend', - topTextInput: 'textInput', - topTimeUpdate: 'timeupdate', - topTouchCancel: 'touchcancel', - topTouchEnd: 'touchend', - topTouchMove: 'touchmove', - topTouchStart: 'touchstart', - topTransitionEnd: getVendorPrefixedEventName('transitionend') || 'transitionend', - topVolumeChange: 'volumechange', - topWaiting: 'waiting', - topWheel: 'wheel' -}; - -/** - * To ensure no conflicts with other potential React instances on the page - */ -var topListenersIDKey = '_reactListenersID' + String(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]]; -} - -/** - * `ReactBrowserEventEmitter` is used to attach top-level event listeners. For - * example: - * - * EventPluginHub.putListener('myID', 'onClick', myFunction); - * - * This would allocate a "registration" of `('onClick', myFunction)` on 'myID'. - * - * @internal - */ -var ReactBrowserEventEmitter = _assign({}, ReactEventEmitterMixin, { - /** - * Injectable event backend - */ - ReactEventListener: null, - - injection: { - /** - * @param {object} ReactEventListener - */ - injectReactEventListener: function (ReactEventListener) { - ReactEventListener.setHandleTopLevel(ReactBrowserEventEmitter.handleTopLevel); - ReactBrowserEventEmitter.ReactEventListener = ReactEventListener; - } - }, - - /** - * Sets whether or not any created callbacks should be enabled. - * - * @param {boolean} enabled True if callbacks should be enabled. - */ - setEnabled: function (enabled) { - if (ReactBrowserEventEmitter.ReactEventListener) { - ReactBrowserEventEmitter.ReactEventListener.setEnabled(enabled); - } - }, - - /** - * @return {boolean} True if callbacks are enabled. - */ - isEnabled: function () { - return !!(ReactBrowserEventEmitter.ReactEventListener && ReactBrowserEventEmitter.ReactEventListener.isEnabled()); - }, - - /** - * 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} contentDocumentHandle Document which owns the container - */ - listenTo: function (registrationName, contentDocumentHandle) { - var mountAt = contentDocumentHandle; - var isListening = getListeningForDocument(mountAt); - var dependencies = EventPluginRegistry.registrationNameDependencies[registrationName]; - - for (var i = 0; i < dependencies.length; i++) { - var dependency = dependencies[i]; - if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) { - if (dependency === 'topWheel') { - if (isEventSupported('wheel')) { - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topWheel', 'wheel', mountAt); - } else if (isEventSupported('mousewheel')) { - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topWheel', 'mousewheel', mountAt); - } else { - // Firefox needs to capture a different mouse scroll event. - // @see http://www.quirksmode.org/dom/events/tests/scroll.html - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topWheel', 'DOMMouseScroll', mountAt); - } - } else if (dependency === 'topScroll') { - if (isEventSupported('scroll', true)) { - ReactBrowserEventEmitter.ReactEventListener.trapCapturedEvent('topScroll', 'scroll', mountAt); - } else { - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topScroll', 'scroll', ReactBrowserEventEmitter.ReactEventListener.WINDOW_HANDLE); - } - } else if (dependency === 'topFocus' || dependency === 'topBlur') { - if (isEventSupported('focus', true)) { - ReactBrowserEventEmitter.ReactEventListener.trapCapturedEvent('topFocus', 'focus', mountAt); - ReactBrowserEventEmitter.ReactEventListener.trapCapturedEvent('topBlur', 'blur', mountAt); - } else if (isEventSupported('focusin')) { - // IE has `focusin` and `focusout` events which bubble. - // @see http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topFocus', 'focusin', mountAt); - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent('topBlur', 'focusout', mountAt); - } - - // to make sure blur and focus event listeners are only attached once - isListening.topBlur = true; - isListening.topFocus = true; - } else if (topEventMapping.hasOwnProperty(dependency)) { - ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent(dependency, topEventMapping[dependency], mountAt); - } - - isListening[dependency] = true; - } - } - }, - - trapBubbledEvent: function (topLevelType, handlerBaseName, handle) { - return ReactBrowserEventEmitter.ReactEventListener.trapBubbledEvent(topLevelType, handlerBaseName, handle); - }, - - trapCapturedEvent: function (topLevelType, handlerBaseName, handle) { - return ReactBrowserEventEmitter.ReactEventListener.trapCapturedEvent(topLevelType, handlerBaseName, handle); - }, - - /** - * Protect against document.createEvent() returning null - * Some popup blocker extensions appear to do this: - * https://github.com/facebook/react/issues/6887 - */ - supportsEventPageXY: function () { - if (!document.createEvent) { - return false; - } - var ev = document.createEvent('MouseEvent'); - return ev != null && 'pageX' in ev; - }, - - /** - * Listens to window scroll and resize events. We cache scroll values so that - * application code can access them without triggering reflows. - * - * ViewportMetrics is only used by SyntheticMouse/TouchEvent and only when - * pageX/pageY isn't supported (legacy browsers). - * - * NOTE: Scroll events do not bubble. - * - * @see http://www.quirksmode.org/dom/events/scroll.html - */ - ensureScrollValueMonitoring: function () { - if (hasEventPageXY === undefined) { - hasEventPageXY = ReactBrowserEventEmitter.supportsEventPageXY(); - } - if (!hasEventPageXY && !isMonitoringScrollValue) { - var refresh = ViewportMetrics.refreshScrollValues; - ReactBrowserEventEmitter.ReactEventListener.monitorScrollValue(refresh); - isMonitoringScrollValue = true; - } - } -}); - -module.exports = ReactBrowserEventEmitter;
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