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Diffstat (limited to 'node_modules/react-dom/lib/EventPluginHub.js')
-rw-r--r-- | node_modules/react-dom/lib/EventPluginHub.js | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/node_modules/react-dom/lib/EventPluginHub.js b/node_modules/react-dom/lib/EventPluginHub.js deleted file mode 100644 index 85ea4a501..000000000 --- a/node_modules/react-dom/lib/EventPluginHub.js +++ /dev/null @@ -1,273 +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 _prodInvariant = require('./reactProdInvariant'); - -var EventPluginRegistry = require('./EventPluginRegistry'); -var EventPluginUtils = require('./EventPluginUtils'); -var ReactErrorUtils = require('./ReactErrorUtils'); - -var accumulateInto = require('./accumulateInto'); -var forEachAccumulated = require('./forEachAccumulated'); -var invariant = require('fbjs/lib/invariant'); - -/** - * Internal store for event listeners - */ -var listenerBank = {}; - -/** - * 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. - * @param {boolean} simulated If the event is simulated (changes exn behavior) - * @private - */ -var executeDispatchesAndRelease = function (event, simulated) { - if (event) { - EventPluginUtils.executeDispatchesInOrder(event, simulated); - - if (!event.isPersistent()) { - event.constructor.release(event); - } - } -}; -var executeDispatchesAndReleaseSimulated = function (e) { - return executeDispatchesAndRelease(e, true); -}; -var executeDispatchesAndReleaseTopLevel = function (e) { - return executeDispatchesAndRelease(e, false); -}; - -var getDictionaryKey = function (inst) { - // Prevents V8 performance issue: - // https://github.com/facebook/react/pull/7232 - return '.' + inst._rootNodeID; -}; - -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 - */ -var EventPluginHub = { - /** - * Methods for injecting dependencies. - */ - injection: { - /** - * @param {array} InjectedEventPluginOrder - * @public - */ - injectEventPluginOrder: EventPluginRegistry.injectEventPluginOrder, - - /** - * @param {object} injectedNamesToPlugins Map from names to plugin modules. - */ - injectEventPluginsByName: EventPluginRegistry.injectEventPluginsByName - }, - - /** - * Stores `listener` at `listenerBank[registrationName][key]`. Is idempotent. - * - * @param {object} inst The instance, which is the source of events. - * @param {string} registrationName Name of listener (e.g. `onClick`). - * @param {function} listener The callback to store. - */ - putListener: function (inst, registrationName, listener) { - !(typeof listener === 'function') ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Expected %s listener to be a function, instead got type %s', registrationName, typeof listener) : _prodInvariant('94', registrationName, typeof listener) : void 0; - - var key = getDictionaryKey(inst); - var bankForRegistrationName = listenerBank[registrationName] || (listenerBank[registrationName] = {}); - bankForRegistrationName[key] = listener; - - var PluginModule = EventPluginRegistry.registrationNameModules[registrationName]; - if (PluginModule && PluginModule.didPutListener) { - PluginModule.didPutListener(inst, registrationName, listener); - } - }, - - /** - * @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. - */ - getListener: function (inst, registrationName) { - // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not - // live here; needs to be moved to a better place soon - var bankForRegistrationName = listenerBank[registrationName]; - if (shouldPreventMouseEvent(registrationName, inst._currentElement.type, inst._currentElement.props)) { - return null; - } - var key = getDictionaryKey(inst); - return bankForRegistrationName && bankForRegistrationName[key]; - }, - - /** - * Deletes a listener from the registration bank. - * - * @param {object} inst The instance, which is the source of events. - * @param {string} registrationName Name of listener (e.g. `onClick`). - */ - deleteListener: function (inst, registrationName) { - var PluginModule = EventPluginRegistry.registrationNameModules[registrationName]; - if (PluginModule && PluginModule.willDeleteListener) { - PluginModule.willDeleteListener(inst, registrationName); - } - - var bankForRegistrationName = listenerBank[registrationName]; - // TODO: This should never be null -- when is it? - if (bankForRegistrationName) { - var key = getDictionaryKey(inst); - delete bankForRegistrationName[key]; - } - }, - - /** - * Deletes all listeners for the DOM element with the supplied ID. - * - * @param {object} inst The instance, which is the source of events. - */ - deleteAllListeners: function (inst) { - var key = getDictionaryKey(inst); - for (var registrationName in listenerBank) { - if (!listenerBank.hasOwnProperty(registrationName)) { - continue; - } - - if (!listenerBank[registrationName][key]) { - continue; - } - - var PluginModule = EventPluginRegistry.registrationNameModules[registrationName]; - if (PluginModule && PluginModule.willDeleteListener) { - PluginModule.willDeleteListener(inst, registrationName); - } - - delete listenerBank[registrationName][key]; - } - }, - - /** - * Allows registered plugins an opportunity to extract events from top-level - * native browser events. - * - * @return {*} An accumulation of synthetic events. - * @internal - */ - extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) { - var events; - var plugins = EventPluginRegistry.plugins; - 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; - }, - - /** - * Enqueues a synthetic event that should be dispatched when - * `processEventQueue` is invoked. - * - * @param {*} events An accumulation of synthetic events. - * @internal - */ - enqueueEvents: function (events) { - if (events) { - eventQueue = accumulateInto(eventQueue, events); - } - }, - - /** - * Dispatches all synthetic events on the event queue. - * - * @internal - */ - processEventQueue: function (simulated) { - // 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 (simulated) { - forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseSimulated); - } else { - forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel); - } - !!eventQueue ? process.env.NODE_ENV !== 'production' ? invariant(false, 'processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.') : _prodInvariant('95') : void 0; - // This would be a good time to rethrow if any of the event handlers threw. - ReactErrorUtils.rethrowCaughtError(); - }, - - /** - * These are needed for tests only. Do not use! - */ - __purge: function () { - listenerBank = {}; - }, - - __getListenerBank: function () { - return listenerBank; - } -}; - -module.exports = EventPluginHub;
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