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/**
* 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 ReactUpdates = require('./ReactUpdates');
var Transaction = require('./Transaction');
var emptyFunction = require('fbjs/lib/emptyFunction');
var RESET_BATCHED_UPDATES = {
initialize: emptyFunction,
close: function () {
ReactDefaultBatchingStrategy.isBatchingUpdates = false;
}
};
var FLUSH_BATCHED_UPDATES = {
initialize: emptyFunction,
close: ReactUpdates.flushBatchedUpdates.bind(ReactUpdates)
};
var TRANSACTION_WRAPPERS = [FLUSH_BATCHED_UPDATES, RESET_BATCHED_UPDATES];
function ReactDefaultBatchingStrategyTransaction() {
this.reinitializeTransaction();
}
_assign(ReactDefaultBatchingStrategyTransaction.prototype, Transaction, {
getTransactionWrappers: function () {
return TRANSACTION_WRAPPERS;
}
});
var transaction = new ReactDefaultBatchingStrategyTransaction();
var ReactDefaultBatchingStrategy = {
isBatchingUpdates: false,
/**
* Call the provided function in a context within which calls to `setState`
* and friends are batched such that components aren't updated unnecessarily.
*/
batchedUpdates: function (callback, a, b, c, d, e) {
var alreadyBatchingUpdates = ReactDefaultBatchingStrategy.isBatchingUpdates;
ReactDefaultBatchingStrategy.isBatchingUpdates = true;
// The code is written this way to avoid extra allocations
if (alreadyBatchingUpdates) {
return callback(a, b, c, d, e);
} else {
return transaction.perform(callback, null, a, b, c, d, e);
}
}
};
module.exports = ReactDefaultBatchingStrategy;
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