mirror of
https://github.com/facebook/react.git
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96 lines
2.5 KiB
JavaScript
96 lines
2.5 KiB
JavaScript
/**
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* Copyright 2013 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 ReactOnDOMReady
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*/
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"use strict";
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var PooledClass = require('PooledClass');
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var mixInto = require('mixInto');
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/**
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* A specialized pseudo-event module to help keep track of components waiting to
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* be notified when their DOM representations are available for use.
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*
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* This implements `PooledClass`, so you should never need to instantiate this.
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* Instead, use `ReactOnDOMReady.getPooled()`.
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*
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* @param {?array<function>} initialCollection
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* @class ReactOnDOMReady
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* @implements PooledClass
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* @internal
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*/
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function ReactOnDOMReady(initialCollection) {
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this._queue = initialCollection || null;
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}
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mixInto(ReactOnDOMReady, {
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/**
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* Enqueues a callback to be invoked when `notifyAll` is invoked. This is used
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* to enqueue calls to `componentDidMount` and `componentDidUpdate`.
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*
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* @param {ReactComponent} component Component being rendered.
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* @param {function(DOMElement)} callback Invoked when `notifyAll` is invoked.
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* @internal
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*/
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enqueue: function(component, callback) {
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this._queue = this._queue || [];
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this._queue.push({component: component, callback: callback});
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},
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/**
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* Invokes all enqueued callbacks and clears the queue. This is invoked after
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* the DOM representation of a component has been created or updated.
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*
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* @internal
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*/
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notifyAll: function() {
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var queue = this._queue;
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if (queue) {
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this._queue = null;
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for (var i = 0, l = queue.length; i < l; i++) {
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var component = queue[i].component;
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var callback = queue[i].callback;
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callback.call(component, component.getDOMNode());
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}
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queue.length = 0;
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}
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},
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/**
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* Resets the internal queue.
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*
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* @internal
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*/
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reset: function() {
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this._queue = null;
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},
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/**
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* `PooledClass` looks for this.
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*/
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destructor: function() {
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this.reset();
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}
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});
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PooledClass.addPoolingTo(ReactOnDOMReady);
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module.exports = ReactOnDOMReady;
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