mirror of
https://github.com/facebook/react.git
synced 2025-11-01 09:12:30 +00:00
Sebastian Markbage
8210beeef4
Because the JS community's polyfilling infrastructure sucks and we'll have to fix it for them before we require this. JSX spread uses React.__spread (which might get special behavior for key/ref, not sure yet) This never uses the native implementation and throws for prototype chains. Once the native implementations are faster, we'll start using them.
97 lines
2.3 KiB
JavaScript
97 lines
2.3 KiB
JavaScript
/**
|
|
* Copyright 2013-2014, 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.
|
|
*
|
|
* @providesModule CallbackQueue
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
var PooledClass = require('PooledClass');
|
|
|
|
var assign = require('Object.assign');
|
|
var invariant = require('invariant');
|
|
|
|
/**
|
|
* A specialized pseudo-event module to help keep track of components waiting to
|
|
* be notified when their DOM representations are available for use.
|
|
*
|
|
* This implements `PooledClass`, so you should never need to instantiate this.
|
|
* Instead, use `CallbackQueue.getPooled()`.
|
|
*
|
|
* @class ReactMountReady
|
|
* @implements PooledClass
|
|
* @internal
|
|
*/
|
|
function CallbackQueue() {
|
|
this._callbacks = null;
|
|
this._contexts = null;
|
|
}
|
|
|
|
assign(CallbackQueue.prototype, {
|
|
|
|
/**
|
|
* Enqueues a callback to be invoked when `notifyAll` is invoked.
|
|
*
|
|
* @param {function} callback Invoked when `notifyAll` is invoked.
|
|
* @param {?object} context Context to call `callback` with.
|
|
* @internal
|
|
*/
|
|
enqueue: function(callback, context) {
|
|
this._callbacks = this._callbacks || [];
|
|
this._contexts = this._contexts || [];
|
|
this._callbacks.push(callback);
|
|
this._contexts.push(context);
|
|
},
|
|
|
|
/**
|
|
* Invokes all enqueued callbacks and clears the queue. This is invoked after
|
|
* the DOM representation of a component has been created or updated.
|
|
*
|
|
* @internal
|
|
*/
|
|
notifyAll: function() {
|
|
var callbacks = this._callbacks;
|
|
var contexts = this._contexts;
|
|
if (callbacks) {
|
|
invariant(
|
|
callbacks.length === contexts.length,
|
|
"Mismatched list of contexts in callback queue"
|
|
);
|
|
this._callbacks = null;
|
|
this._contexts = null;
|
|
for (var i = 0, l = callbacks.length; i < l; i++) {
|
|
callbacks[i].call(contexts[i]);
|
|
}
|
|
callbacks.length = 0;
|
|
contexts.length = 0;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Resets the internal queue.
|
|
*
|
|
* @internal
|
|
*/
|
|
reset: function() {
|
|
this._callbacks = null;
|
|
this._contexts = null;
|
|
},
|
|
|
|
/**
|
|
* `PooledClass` looks for this.
|
|
*/
|
|
destructor: function() {
|
|
this.reset();
|
|
}
|
|
|
|
});
|
|
|
|
PooledClass.addPoolingTo(CallbackQueue);
|
|
|
|
module.exports = CallbackQueue;
|