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ReactComponentEnvironment.js
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57 lines (47 loc) · 1.59 KB
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/**
* Copyright 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 ReactComponentEnvironment
*/
"use strict";
var invariant = require('invariant');
var injected = false;
var ReactComponentEnvironment = {
/**
* Optionally injectable environment dependent cleanup hook. (server vs.
* browser etc). Example: A browser system caches DOM nodes based on component
* ID and must remove that cache entry when this instance is unmounted.
*/
unmountIDFromEnvironment: null,
/**
* Optionally injectable hook for swapping out mount images in the middle of
* the tree.
*/
replaceNodeWithMarkupByID: null,
/**
* Optionally injectable hook for processing a queue of child updates. Will
* later move into MultiChildComponents.
*/
processChildrenUpdates: null,
injection: {
injectEnvironment: function(environment) {
invariant(
!injected,
'ReactCompositeComponent: injectEnvironment() can only be called once.'
);
ReactComponentEnvironment.unmountIDFromEnvironment =
environment.unmountIDFromEnvironment;
ReactComponentEnvironment.replaceNodeWithMarkupByID =
environment.replaceNodeWithMarkupByID;
ReactComponentEnvironment.processChildrenUpdates =
environment.processChildrenUpdates;
injected = true;
}
},
};
module.exports = ReactComponentEnvironment;