78 lines
2.6 KiB
JavaScript
78 lines
2.6 KiB
JavaScript
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/**
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* Copyright 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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*
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*/
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'use strict';
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var ReactTypeOfWork = require('./ReactTypeOfWork');
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var ClassComponent = ReactTypeOfWork.ClassComponent,
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HostContainer = ReactTypeOfWork.HostContainer,
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HostComponent = ReactTypeOfWork.HostComponent;
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var _require = require('./ReactFiberUpdateQueue'),
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callCallbacks = _require.callCallbacks;
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module.exports = function (config) {
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var updateContainer = config.updateContainer;
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var commitUpdate = config.commitUpdate;
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function commitWork(current, finishedWork) {
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switch (finishedWork.tag) {
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case ClassComponent:
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{
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// Clear updates from current fiber. This must go before the callbacks
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// are reset, in case an update is triggered from inside a callback. Is
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// this safe? Relies on the assumption that work is only committed if
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// the update queue is empty.
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if (finishedWork.alternate) {
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finishedWork.alternate.updateQueue = null;
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}
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if (finishedWork.callbackList) {
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var callbackList = finishedWork.callbackList;
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finishedWork.callbackList = null;
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callCallbacks(callbackList, finishedWork.stateNode);
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}
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// TODO: Fire componentDidMount/componentDidUpdate, update refs
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return;
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}
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case HostContainer:
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{
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// TODO: Attach children to root container.
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var children = finishedWork.output;
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var root = finishedWork.stateNode;
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var containerInfo = root.containerInfo;
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updateContainer(containerInfo, children);
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return;
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}
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case HostComponent:
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{
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if (finishedWork.stateNode == null || !current) {
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throw new Error('This should only be done during updates.');
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}
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// Commit the work prepared earlier.
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var child = finishedWork.child;
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var _children = child && !child.sibling ? child.output : child;
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var newProps = finishedWork.memoizedProps;
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var oldProps = current.memoizedProps;
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var instance = finishedWork.stateNode;
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commitUpdate(instance, oldProps, newProps, _children);
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return;
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}
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default:
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throw new Error('This unit of work tag should not have side-effects.');
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}
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}
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return {
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commitWork: commitWork
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};
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};
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