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https://github.com/facebook/react.git
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Ben Alpert
933dde9c6d
Fixes #1227. It seems rare that event handlers in two roots nested in the DOM will update the same component in the same tick, but if that happens, the updates should be batched together.
56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
/**
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* Copyright 2013-2014 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @providesModule ReactEventEmitterMixin
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*/
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"use strict";
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var EventPluginHub = require('EventPluginHub');
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function runEventQueueInBatch(events) {
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EventPluginHub.enqueueEvents(events);
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EventPluginHub.processEventQueue();
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}
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var ReactEventEmitterMixin = {
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/**
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* Streams a fired top-level event to `EventPluginHub` where plugins have the
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* opportunity to create `ReactEvent`s to be dispatched.
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*
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* @param {string} topLevelType Record from `EventConstants`.
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* @param {object} topLevelTarget The listening component root node.
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* @param {string} topLevelTargetID ID of `topLevelTarget`.
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* @param {object} nativeEvent Native environment event.
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*/
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handleTopLevel: function(
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topLevelType,
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topLevelTarget,
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topLevelTargetID,
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nativeEvent) {
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var events = EventPluginHub.extractEvents(
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topLevelType,
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topLevelTarget,
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topLevelTargetID,
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nativeEvent
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);
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runEventQueueInBatch(events);
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}
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};
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module.exports = ReactEventEmitterMixin;
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