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author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
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committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/react-dom/lib/ReactCompositeComponent.js | |
parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
download | wallet-core-de98e0b232509d5f40c135d540a70e415272ff85.tar.xz |
node_modules
Diffstat (limited to 'node_modules/react-dom/lib/ReactCompositeComponent.js')
-rw-r--r-- | node_modules/react-dom/lib/ReactCompositeComponent.js | 901 |
1 files changed, 901 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/ReactCompositeComponent.js b/node_modules/react-dom/lib/ReactCompositeComponent.js new file mode 100644 index 000000000..9f751b203 --- /dev/null +++ b/node_modules/react-dom/lib/ReactCompositeComponent.js @@ -0,0 +1,901 @@ +/** + * 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 _prodInvariant = require('./reactProdInvariant'), + _assign = require('object-assign'); + +var React = require('react/lib/React'); +var ReactComponentEnvironment = require('./ReactComponentEnvironment'); +var ReactCurrentOwner = require('react/lib/ReactCurrentOwner'); +var ReactErrorUtils = require('./ReactErrorUtils'); +var ReactInstanceMap = require('./ReactInstanceMap'); +var ReactInstrumentation = require('./ReactInstrumentation'); +var ReactNodeTypes = require('./ReactNodeTypes'); +var ReactReconciler = require('./ReactReconciler'); + +if (process.env.NODE_ENV !== 'production') { + var checkReactTypeSpec = require('./checkReactTypeSpec'); +} + +var emptyObject = require('fbjs/lib/emptyObject'); +var invariant = require('fbjs/lib/invariant'); +var shallowEqual = require('fbjs/lib/shallowEqual'); +var shouldUpdateReactComponent = require('./shouldUpdateReactComponent'); +var warning = require('fbjs/lib/warning'); + +var CompositeTypes = { + ImpureClass: 0, + PureClass: 1, + StatelessFunctional: 2 +}; + +function StatelessComponent(Component) {} +StatelessComponent.prototype.render = function () { + var Component = ReactInstanceMap.get(this)._currentElement.type; + var element = Component(this.props, this.context, this.updater); + warnIfInvalidElement(Component, element); + return element; +}; + +function warnIfInvalidElement(Component, element) { + if (process.env.NODE_ENV !== 'production') { + process.env.NODE_ENV !== 'production' ? warning(element === null || element === false || React.isValidElement(element), '%s(...): A valid React element (or null) must be returned. You may have ' + 'returned undefined, an array or some other invalid object.', Component.displayName || Component.name || 'Component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(!Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', Component.displayName || Component.name || 'Component') : void 0; + } +} + +function shouldConstruct(Component) { + return !!(Component.prototype && Component.prototype.isReactComponent); +} + +function isPureComponent(Component) { + return !!(Component.prototype && Component.prototype.isPureReactComponent); +} + +// Separated into a function to contain deoptimizations caused by try/finally. +function measureLifeCyclePerf(fn, debugID, timerType) { + if (debugID === 0) { + // Top-level wrappers (see ReactMount) and empty components (see + // ReactDOMEmptyComponent) are invisible to hooks and devtools. + // Both are implementation details that should go away in the future. + return fn(); + } + + ReactInstrumentation.debugTool.onBeginLifeCycleTimer(debugID, timerType); + try { + return fn(); + } finally { + ReactInstrumentation.debugTool.onEndLifeCycleTimer(debugID, timerType); + } +} + +/** + * ------------------ The Life-Cycle of a Composite Component ------------------ + * + * - constructor: Initialization of state. The instance is now retained. + * - componentWillMount + * - render + * - [children's constructors] + * - [children's componentWillMount and render] + * - [children's componentDidMount] + * - componentDidMount + * + * Update Phases: + * - componentWillReceiveProps (only called if parent updated) + * - shouldComponentUpdate + * - componentWillUpdate + * - render + * - [children's constructors or receive props phases] + * - componentDidUpdate + * + * - componentWillUnmount + * - [children's componentWillUnmount] + * - [children destroyed] + * - (destroyed): The instance is now blank, released by React and ready for GC. + * + * ----------------------------------------------------------------------------- + */ + +/** + * An incrementing ID assigned to each component when it is mounted. This is + * used to enforce the order in which `ReactUpdates` updates dirty components. + * + * @private + */ +var nextMountID = 1; + +/** + * @lends {ReactCompositeComponent.prototype} + */ +var ReactCompositeComponent = { + + /** + * Base constructor for all composite component. + * + * @param {ReactElement} element + * @final + * @internal + */ + construct: function (element) { + this._currentElement = element; + this._rootNodeID = 0; + this._compositeType = null; + this._instance = null; + this._hostParent = null; + this._hostContainerInfo = null; + + // See ReactUpdateQueue + this._updateBatchNumber = null; + this._pendingElement = null; + this._pendingStateQueue = null; + this._pendingReplaceState = false; + this._pendingForceUpdate = false; + + this._renderedNodeType = null; + this._renderedComponent = null; + this._context = null; + this._mountOrder = 0; + this._topLevelWrapper = null; + + // See ReactUpdates and ReactUpdateQueue. + this._pendingCallbacks = null; + + // ComponentWillUnmount shall only be called once + this._calledComponentWillUnmount = false; + + if (process.env.NODE_ENV !== 'production') { + this._warnedAboutRefsInRender = false; + } + }, + + /** + * Initializes the component, renders markup, and registers event listeners. + * + * @param {ReactReconcileTransaction|ReactServerRenderingTransaction} transaction + * @param {?object} hostParent + * @param {?object} hostContainerInfo + * @param {?object} context + * @return {?string} Rendered markup to be inserted into the DOM. + * @final + * @internal + */ + mountComponent: function (transaction, hostParent, hostContainerInfo, context) { + var _this = this; + + this._context = context; + this._mountOrder = nextMountID++; + this._hostParent = hostParent; + this._hostContainerInfo = hostContainerInfo; + + var publicProps = this._currentElement.props; + var publicContext = this._processContext(context); + + var Component = this._currentElement.type; + + var updateQueue = transaction.getUpdateQueue(); + + // Initialize the public class + var doConstruct = shouldConstruct(Component); + var inst = this._constructComponent(doConstruct, publicProps, publicContext, updateQueue); + var renderedElement; + + // Support functional components + if (!doConstruct && (inst == null || inst.render == null)) { + renderedElement = inst; + warnIfInvalidElement(Component, renderedElement); + !(inst === null || inst === false || React.isValidElement(inst)) ? process.env.NODE_ENV !== 'production' ? invariant(false, '%s(...): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.', Component.displayName || Component.name || 'Component') : _prodInvariant('105', Component.displayName || Component.name || 'Component') : void 0; + inst = new StatelessComponent(Component); + this._compositeType = CompositeTypes.StatelessFunctional; + } else { + if (isPureComponent(Component)) { + this._compositeType = CompositeTypes.PureClass; + } else { + this._compositeType = CompositeTypes.ImpureClass; + } + } + + if (process.env.NODE_ENV !== 'production') { + // This will throw later in _renderValidatedComponent, but add an early + // warning now to help debugging + if (inst.render == null) { + process.env.NODE_ENV !== 'production' ? warning(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', Component.displayName || Component.name || 'Component') : void 0; + } + + var propsMutated = inst.props !== publicProps; + var componentName = Component.displayName || Component.name || 'Component'; + + process.env.NODE_ENV !== 'production' ? warning(inst.props === undefined || !propsMutated, '%s(...): When calling super() in `%s`, make sure to pass ' + 'up the same props that your component\'s constructor was passed.', componentName, componentName) : void 0; + } + + // These should be set up in the constructor, but as a convenience for + // simpler class abstractions, we set them up after the fact. + inst.props = publicProps; + inst.context = publicContext; + inst.refs = emptyObject; + inst.updater = updateQueue; + + this._instance = inst; + + // Store a reference from the instance back to the internal representation + ReactInstanceMap.set(inst, this); + + if (process.env.NODE_ENV !== 'production') { + // Since plain JS classes are defined without any special initialization + // logic, we can not catch common errors early. Therefore, we have to + // catch them here, at initialization time, instead. + process.env.NODE_ENV !== 'production' ? warning(!inst.getInitialState || inst.getInitialState.isReactClassApproved || inst.state, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', this.getName() || 'a component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(!inst.getDefaultProps || inst.getDefaultProps.isReactClassApproved, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', this.getName() || 'a component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(!inst.propTypes, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', this.getName() || 'a component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(!inst.contextTypes, 'contextTypes was defined as an instance property on %s. Use a ' + 'static property to define contextTypes instead.', this.getName() || 'a component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(typeof inst.componentShouldUpdate !== 'function', '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', this.getName() || 'A component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(typeof inst.componentDidUnmount !== 'function', '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', this.getName() || 'A component') : void 0; + process.env.NODE_ENV !== 'production' ? warning(typeof inst.componentWillRecieveProps !== 'function', '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', this.getName() || 'A component') : void 0; + } + + var initialState = inst.state; + if (initialState === undefined) { + inst.state = initialState = null; + } + !(typeof initialState === 'object' && !Array.isArray(initialState)) ? process.env.NODE_ENV !== 'production' ? invariant(false, '%s.state: must be set to an object or null', this.getName() || 'ReactCompositeComponent') : _prodInvariant('106', this.getName() || 'ReactCompositeComponent') : void 0; + + this._pendingStateQueue = null; + this._pendingReplaceState = false; + this._pendingForceUpdate = false; + + var markup; + if (inst.unstable_handleError) { + markup = this.performInitialMountWithErrorHandling(renderedElement, hostParent, hostContainerInfo, transaction, context); + } else { + markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context); + } + + if (inst.componentDidMount) { + if (process.env.NODE_ENV !== 'production') { + transaction.getReactMountReady().enqueue(function () { + measureLifeCyclePerf(function () { + return inst.componentDidMount(); + }, _this._debugID, 'componentDidMount'); + }); + } else { + transaction.getReactMountReady().enqueue(inst.componentDidMount, inst); + } + } + + return markup; + }, + + _constructComponent: function (doConstruct, publicProps, publicContext, updateQueue) { + if (process.env.NODE_ENV !== 'production') { + ReactCurrentOwner.current = this; + try { + return this._constructComponentWithoutOwner(doConstruct, publicProps, publicContext, updateQueue); + } finally { + ReactCurrentOwner.current = null; + } + } else { + return this._constructComponentWithoutOwner(doConstruct, publicProps, publicContext, updateQueue); + } + }, + + _constructComponentWithoutOwner: function (doConstruct, publicProps, publicContext, updateQueue) { + var Component = this._currentElement.type; + + if (doConstruct) { + if (process.env.NODE_ENV !== 'production') { + return measureLifeCyclePerf(function () { + return new Component(publicProps, publicContext, updateQueue); + }, this._debugID, 'ctor'); + } else { + return new Component(publicProps, publicContext, updateQueue); + } + } + + // This can still be an instance in case of factory components + // but we'll count this as time spent rendering as the more common case. + if (process.env.NODE_ENV !== 'production') { + return measureLifeCyclePerf(function () { + return Component(publicProps, publicContext, updateQueue); + }, this._debugID, 'render'); + } else { + return Component(publicProps, publicContext, updateQueue); + } + }, + + performInitialMountWithErrorHandling: function (renderedElement, hostParent, hostContainerInfo, transaction, context) { + var markup; + var checkpoint = transaction.checkpoint(); + try { + markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context); + } catch (e) { + // Roll back to checkpoint, handle error (which may add items to the transaction), and take a new checkpoint + transaction.rollback(checkpoint); + this._instance.unstable_handleError(e); + if (this._pendingStateQueue) { + this._instance.state = this._processPendingState(this._instance.props, this._instance.context); + } + checkpoint = transaction.checkpoint(); + + this._renderedComponent.unmountComponent(true); + transaction.rollback(checkpoint); + + // Try again - we've informed the component about the error, so they can render an error message this time. + // If this throws again, the error will bubble up (and can be caught by a higher error boundary). + markup = this.performInitialMount(renderedElement, hostParent, hostContainerInfo, transaction, context); + } + return markup; + }, + + performInitialMount: function (renderedElement, hostParent, hostContainerInfo, transaction, context) { + var inst = this._instance; + + var debugID = 0; + if (process.env.NODE_ENV !== 'production') { + debugID = this._debugID; + } + + if (inst.componentWillMount) { + if (process.env.NODE_ENV !== 'production') { + measureLifeCyclePerf(function () { + return inst.componentWillMount(); + }, debugID, 'componentWillMount'); + } else { + inst.componentWillMount(); + } + // When mounting, calls to `setState` by `componentWillMount` will set + // `this._pendingStateQueue` without triggering a re-render. + if (this._pendingStateQueue) { + inst.state = this._processPendingState(inst.props, inst.context); + } + } + + // If not a stateless component, we now render + if (renderedElement === undefined) { + renderedElement = this._renderValidatedComponent(); + } + + var nodeType = ReactNodeTypes.getType(renderedElement); + this._renderedNodeType = nodeType; + var child = this._instantiateReactComponent(renderedElement, nodeType !== ReactNodeTypes.EMPTY /* shouldHaveDebugID */ + ); + this._renderedComponent = child; + + var markup = ReactReconciler.mountComponent(child, transaction, hostParent, hostContainerInfo, this._processChildContext(context), debugID); + + if (process.env.NODE_ENV !== 'production') { + if (debugID !== 0) { + var childDebugIDs = child._debugID !== 0 ? [child._debugID] : []; + ReactInstrumentation.debugTool.onSetChildren(debugID, childDebugIDs); + } + } + + return markup; + }, + + getHostNode: function () { + return ReactReconciler.getHostNode(this._renderedComponent); + }, + + /** + * Releases any resources allocated by `mountComponent`. + * + * @final + * @internal + */ + unmountComponent: function (safely) { + if (!this._renderedComponent) { + return; + } + + var inst = this._instance; + + if (inst.componentWillUnmount && !inst._calledComponentWillUnmount) { + inst._calledComponentWillUnmount = true; + + if (safely) { + var name = this.getName() + '.componentWillUnmount()'; + ReactErrorUtils.invokeGuardedCallback(name, inst.componentWillUnmount.bind(inst)); + } else { + if (process.env.NODE_ENV !== 'production') { + measureLifeCyclePerf(function () { + return inst.componentWillUnmount(); + }, this._debugID, 'componentWillUnmount'); + } else { + inst.componentWillUnmount(); + } + } + } + + if (this._renderedComponent) { + ReactReconciler.unmountComponent(this._renderedComponent, safely); + this._renderedNodeType = null; + this._renderedComponent = null; + this._instance = null; + } + + // Reset pending fields + // Even if this component is scheduled for another update in ReactUpdates, + // it would still be ignored because these fields are reset. + this._pendingStateQueue = null; + this._pendingReplaceState = false; + this._pendingForceUpdate = false; + this._pendingCallbacks = null; + this._pendingElement = null; + + // These fields do not really need to be reset since this object is no + // longer accessible. + this._context = null; + this._rootNodeID = 0; + this._topLevelWrapper = null; + + // Delete the reference from the instance to this internal representation + // which allow the internals to be properly cleaned up even if the user + // leaks a reference to the public instance. + ReactInstanceMap.remove(inst); + + // Some existing components rely on inst.props even after they've been + // destroyed (in event handlers). + // TODO: inst.props = null; + // TODO: inst.state = null; + // TODO: inst.context = null; + }, + + /** + * Filters the context object to only contain keys specified in + * `contextTypes` + * + * @param {object} context + * @return {?object} + * @private + */ + _maskContext: function (context) { + var Component = this._currentElement.type; + var contextTypes = Component.contextTypes; + if (!contextTypes) { + return emptyObject; + } + var maskedContext = {}; + for (var contextName in contextTypes) { + maskedContext[contextName] = context[contextName]; + } + return maskedContext; + }, + + /** + * Filters the context object to only contain keys specified in + * `contextTypes`, and asserts that they are valid. + * + * @param {object} context + * @return {?object} + * @private + */ + _processContext: function (context) { + var maskedContext = this._maskContext(context); + if (process.env.NODE_ENV !== 'production') { + var Component = this._currentElement.type; + if (Component.contextTypes) { + this._checkContextTypes(Component.contextTypes, maskedContext, 'context'); + } + } + return maskedContext; + }, + + /** + * @param {object} currentContext + * @return {object} + * @private + */ + _processChildContext: function (currentContext) { + var Component = this._currentElement.type; + var inst = this._instance; + var childContext; + + if (inst.getChildContext) { + if (process.env.NODE_ENV !== 'production') { + ReactInstrumentation.debugTool.onBeginProcessingChildContext(); + try { + childContext = inst.getChildContext(); + } finally { + ReactInstrumentation.debugTool.onEndProcessingChildContext(); + } + } else { + childContext = inst.getChildContext(); + } + } + + if (childContext) { + !(typeof Component.childContextTypes === 'object') ? process.env.NODE_ENV !== 'production' ? invariant(false, '%s.getChildContext(): childContextTypes must be defined in order to use getChildContext().', this.getName() || 'ReactCompositeComponent') : _prodInvariant('107', this.getName() || 'ReactCompositeComponent') : void 0; + if (process.env.NODE_ENV !== 'production') { + this._checkContextTypes(Component.childContextTypes, childContext, 'child context'); + } + for (var name in childContext) { + !(name in Component.childContextTypes) ? process.env.NODE_ENV !== 'production' ? invariant(false, '%s.getChildContext(): key "%s" is not defined in childContextTypes.', this.getName() || 'ReactCompositeComponent', name) : _prodInvariant('108', this.getName() || 'ReactCompositeComponent', name) : void 0; + } + return _assign({}, currentContext, childContext); + } + return currentContext; + }, + + /** + * Assert that the context types are valid + * + * @param {object} typeSpecs Map of context field to a ReactPropType + * @param {object} values Runtime values that need to be type-checked + * @param {string} location e.g. "prop", "context", "child context" + * @private + */ + _checkContextTypes: function (typeSpecs, values, location) { + if (process.env.NODE_ENV !== 'production') { + checkReactTypeSpec(typeSpecs, values, location, this.getName(), null, this._debugID); + } + }, + + receiveComponent: function (nextElement, transaction, nextContext) { + var prevElement = this._currentElement; + var prevContext = this._context; + + this._pendingElement = null; + + this.updateComponent(transaction, prevElement, nextElement, prevContext, nextContext); + }, + + /** + * If any of `_pendingElement`, `_pendingStateQueue`, or `_pendingForceUpdate` + * is set, update the component. + * + * @param {ReactReconcileTransaction} transaction + * @internal + */ + performUpdateIfNecessary: function (transaction) { + if (this._pendingElement != null) { + ReactReconciler.receiveComponent(this, this._pendingElement, transaction, this._context); + } else if (this._pendingStateQueue !== null || this._pendingForceUpdate) { + this.updateComponent(transaction, this._currentElement, this._currentElement, this._context, this._context); + } else { + this._updateBatchNumber = null; + } + }, + + /** + * Perform an update to a mounted component. The componentWillReceiveProps and + * shouldComponentUpdate methods are called, then (assuming the update isn't + * skipped) the remaining update lifecycle methods are called and the DOM + * representation is updated. + * + * By default, this implements React's rendering and reconciliation algorithm. + * Sophisticated clients may wish to override this. + * + * @param {ReactReconcileTransaction} transaction + * @param {ReactElement} prevParentElement + * @param {ReactElement} nextParentElement + * @internal + * @overridable + */ + updateComponent: function (transaction, prevParentElement, nextParentElement, prevUnmaskedContext, nextUnmaskedContext) { + var inst = this._instance; + !(inst != null) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Attempted to update component `%s` that has already been unmounted (or failed to mount).', this.getName() || 'ReactCompositeComponent') : _prodInvariant('136', this.getName() || 'ReactCompositeComponent') : void 0; + + var willReceive = false; + var nextContext; + + // Determine if the context has changed or not + if (this._context === nextUnmaskedContext) { + nextContext = inst.context; + } else { + nextContext = this._processContext(nextUnmaskedContext); + willReceive = true; + } + + var prevProps = prevParentElement.props; + var nextProps = nextParentElement.props; + + // Not a simple state update but a props update + if (prevParentElement !== nextParentElement) { + willReceive = true; + } + + // An update here will schedule an update but immediately set + // _pendingStateQueue which will ensure that any state updates gets + // immediately reconciled instead of waiting for the next batch. + if (willReceive && inst.componentWillReceiveProps) { + if (process.env.NODE_ENV !== 'production') { + measureLifeCyclePerf(function () { + return inst.componentWillReceiveProps(nextProps, nextContext); + }, this._debugID, 'componentWillReceiveProps'); + } else { + inst.componentWillReceiveProps(nextProps, nextContext); + } + } + + var nextState = this._processPendingState(nextProps, nextContext); + var shouldUpdate = true; + + if (!this._pendingForceUpdate) { + if (inst.shouldComponentUpdate) { + if (process.env.NODE_ENV !== 'production') { + shouldUpdate = measureLifeCyclePerf(function () { + return inst.shouldComponentUpdate(nextProps, nextState, nextContext); + }, this._debugID, 'shouldComponentUpdate'); + } else { + shouldUpdate = inst.shouldComponentUpdate(nextProps, nextState, nextContext); + } + } else { + if (this._compositeType === CompositeTypes.PureClass) { + shouldUpdate = !shallowEqual(prevProps, nextProps) || !shallowEqual(inst.state, nextState); + } + } + } + + if (process.env.NODE_ENV !== 'production') { + process.env.NODE_ENV !== 'production' ? warning(shouldUpdate !== undefined, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', this.getName() || 'ReactCompositeComponent') : void 0; + } + + this._updateBatchNumber = null; + if (shouldUpdate) { + this._pendingForceUpdate = false; + // Will set `this.props`, `this.state` and `this.context`. + this._performComponentUpdate(nextParentElement, nextProps, nextState, nextContext, transaction, nextUnmaskedContext); + } else { + // If it's determined that a component should not update, we still want + // to set props and state but we shortcut the rest of the update. + this._currentElement = nextParentElement; + this._context = nextUnmaskedContext; + inst.props = nextProps; + inst.state = nextState; + inst.context = nextContext; + } + }, + + _processPendingState: function (props, context) { + var inst = this._instance; + var queue = this._pendingStateQueue; + var replace = this._pendingReplaceState; + this._pendingReplaceState = false; + this._pendingStateQueue = null; + + if (!queue) { + return inst.state; + } + + if (replace && queue.length === 1) { + return queue[0]; + } + + var nextState = _assign({}, replace ? queue[0] : inst.state); + for (var i = replace ? 1 : 0; i < queue.length; i++) { + var partial = queue[i]; + _assign(nextState, typeof partial === 'function' ? partial.call(inst, nextState, props, context) : partial); + } + + return nextState; + }, + + /** + * Merges new props and state, notifies delegate methods of update and + * performs update. + * + * @param {ReactElement} nextElement Next element + * @param {object} nextProps Next public object to set as properties. + * @param {?object} nextState Next object to set as state. + * @param {?object} nextContext Next public object to set as context. + * @param {ReactReconcileTransaction} transaction + * @param {?object} unmaskedContext + * @private + */ + _performComponentUpdate: function (nextElement, nextProps, nextState, nextContext, transaction, unmaskedContext) { + var _this2 = this; + + var inst = this._instance; + + var hasComponentDidUpdate = Boolean(inst.componentDidUpdate); + var prevProps; + var prevState; + var prevContext; + if (hasComponentDidUpdate) { + prevProps = inst.props; + prevState = inst.state; + prevContext = inst.context; + } + + if (inst.componentWillUpdate) { + if (process.env.NODE_ENV !== 'production') { + measureLifeCyclePerf(function () { + return inst.componentWillUpdate(nextProps, nextState, nextContext); + }, this._debugID, 'componentWillUpdate'); + } else { + inst.componentWillUpdate(nextProps, nextState, nextContext); + } + } + + this._currentElement = nextElement; + this._context = unmaskedContext; + inst.props = nextProps; + inst.state = nextState; + inst.context = nextContext; + + this._updateRenderedComponent(transaction, unmaskedContext); + + if (hasComponentDidUpdate) { + if (process.env.NODE_ENV !== 'production') { + transaction.getReactMountReady().enqueue(function () { + measureLifeCyclePerf(inst.componentDidUpdate.bind(inst, prevProps, prevState, prevContext), _this2._debugID, 'componentDidUpdate'); + }); + } else { + transaction.getReactMountReady().enqueue(inst.componentDidUpdate.bind(inst, prevProps, prevState, prevContext), inst); + } + } + }, + + /** + * Call the component's `render` method and update the DOM accordingly. + * + * @param {ReactReconcileTransaction} transaction + * @internal + */ + _updateRenderedComponent: function (transaction, context) { + var prevComponentInstance = this._renderedComponent; + var prevRenderedElement = prevComponentInstance._currentElement; + var nextRenderedElement = this._renderValidatedComponent(); + + var debugID = 0; + if (process.env.NODE_ENV !== 'production') { + debugID = this._debugID; + } + + if (shouldUpdateReactComponent(prevRenderedElement, nextRenderedElement)) { + ReactReconciler.receiveComponent(prevComponentInstance, nextRenderedElement, transaction, this._processChildContext(context)); + } else { + var oldHostNode = ReactReconciler.getHostNode(prevComponentInstance); + ReactReconciler.unmountComponent(prevComponentInstance, false); + + var nodeType = ReactNodeTypes.getType(nextRenderedElement); + this._renderedNodeType = nodeType; + var child = this._instantiateReactComponent(nextRenderedElement, nodeType !== ReactNodeTypes.EMPTY /* shouldHaveDebugID */ + ); + this._renderedComponent = child; + + var nextMarkup = ReactReconciler.mountComponent(child, transaction, this._hostParent, this._hostContainerInfo, this._processChildContext(context), debugID); + + if (process.env.NODE_ENV !== 'production') { + if (debugID !== 0) { + var childDebugIDs = child._debugID !== 0 ? [child._debugID] : []; + ReactInstrumentation.debugTool.onSetChildren(debugID, childDebugIDs); + } + } + + this._replaceNodeWithMarkup(oldHostNode, nextMarkup, prevComponentInstance); + } + }, + + /** + * Overridden in shallow rendering. + * + * @protected + */ + _replaceNodeWithMarkup: function (oldHostNode, nextMarkup, prevInstance) { + ReactComponentEnvironment.replaceNodeWithMarkup(oldHostNode, nextMarkup, prevInstance); + }, + + /** + * @protected + */ + _renderValidatedComponentWithoutOwnerOrContext: function () { + var inst = this._instance; + var renderedElement; + + if (process.env.NODE_ENV !== 'production') { + renderedElement = measureLifeCyclePerf(function () { + return inst.render(); + }, this._debugID, 'render'); + } else { + renderedElement = inst.render(); + } + + if (process.env.NODE_ENV !== 'production') { + // We allow auto-mocks to proceed as if they're returning null. + if (renderedElement === undefined && inst.render._isMockFunction) { + // This is probably bad practice. Consider warning here and + // deprecating this convenience. + renderedElement = null; + } + } + + return renderedElement; + }, + + /** + * @private + */ + _renderValidatedComponent: function () { + var renderedElement; + if (process.env.NODE_ENV !== 'production' || this._compositeType !== CompositeTypes.StatelessFunctional) { + ReactCurrentOwner.current = this; + try { + renderedElement = this._renderValidatedComponentWithoutOwnerOrContext(); + } finally { + ReactCurrentOwner.current = null; + } + } else { + renderedElement = this._renderValidatedComponentWithoutOwnerOrContext(); + } + !( + // TODO: An `isValidNode` function would probably be more appropriate + renderedElement === null || renderedElement === false || React.isValidElement(renderedElement)) ? process.env.NODE_ENV !== 'production' ? invariant(false, '%s.render(): A valid React element (or null) must be returned. You may have returned undefined, an array or some other invalid object.', this.getName() || 'ReactCompositeComponent') : _prodInvariant('109', this.getName() || 'ReactCompositeComponent') : void 0; + + return renderedElement; + }, + + /** + * Lazily allocates the refs object and stores `component` as `ref`. + * + * @param {string} ref Reference name. + * @param {component} component Component to store as `ref`. + * @final + * @private + */ + attachRef: function (ref, component) { + var inst = this.getPublicInstance(); + !(inst != null) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Stateless function components cannot have refs.') : _prodInvariant('110') : void 0; + var publicComponentInstance = component.getPublicInstance(); + if (process.env.NODE_ENV !== 'production') { + var componentName = component && component.getName ? component.getName() : 'a component'; + process.env.NODE_ENV !== 'production' ? warning(publicComponentInstance != null || component._compositeType !== CompositeTypes.StatelessFunctional, 'Stateless function components cannot be given refs ' + '(See ref "%s" in %s created by %s). ' + 'Attempts to access this ref will fail.', ref, componentName, this.getName()) : void 0; + } + var refs = inst.refs === emptyObject ? inst.refs = {} : inst.refs; + refs[ref] = publicComponentInstance; + }, + + /** + * Detaches a reference name. + * + * @param {string} ref Name to dereference. + * @final + * @private + */ + detachRef: function (ref) { + var refs = this.getPublicInstance().refs; + delete refs[ref]; + }, + + /** + * Get a text description of the component that can be used to identify it + * in error messages. + * @return {string} The name or null. + * @internal + */ + getName: function () { + var type = this._currentElement.type; + var constructor = this._instance && this._instance.constructor; + return type.displayName || constructor && constructor.displayName || type.name || constructor && constructor.name || null; + }, + + /** + * Get the publicly accessible representation of this component - i.e. what + * is exposed by refs and returned by render. Can be null for stateless + * components. + * + * @return {ReactComponent} the public component instance. + * @internal + */ + getPublicInstance: function () { + var inst = this._instance; + if (this._compositeType === CompositeTypes.StatelessFunctional) { + return null; + } + return inst; + }, + + // Stub + _instantiateReactComponent: null + +}; + +module.exports = ReactCompositeComponent;
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