From 735cecbeedb0bd8f088251b31c43e56c259a4209 Mon Sep 17 00:00:00 2001 From: Anthony Schneider Date: Thu, 24 Feb 2022 01:45:46 -0600 Subject: This version lets you type in the terminal. It still doesn't work right, but it's a start. --- ...dom-unstable-native-dependencies.development.js | 1628 ++++++++++++++++++++ 1 file changed, 1628 insertions(+) create mode 100644 node_modules/react-dom/umd/react-dom-unstable-native-dependencies.development.js (limited to 'node_modules/react-dom/umd/react-dom-unstable-native-dependencies.development.js') diff --git a/node_modules/react-dom/umd/react-dom-unstable-native-dependencies.development.js b/node_modules/react-dom/umd/react-dom-unstable-native-dependencies.development.js new file mode 100644 index 0000000..06ecd18 --- /dev/null +++ b/node_modules/react-dom/umd/react-dom-unstable-native-dependencies.development.js @@ -0,0 +1,1628 @@ +/** @license React v16.13.1 + * react-dom-unstable-native-dependencies.development.js + * + * Copyright (c) Facebook, Inc. and its affiliates. + * + * This source code is licensed under the MIT license found in the + * LICENSE file in the root directory of this source tree. + */ + +'use strict'; + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('react-dom'), require('react')) : + typeof define === 'function' && define.amd ? define(['react-dom', 'react'], factory) : + (global = global || self, global.ReactDOMUnstableNativeDependencies = factory(global.ReactDOM, global.React)); +}(this, (function (ReactDOM, React) { 'use strict'; + + var ReactSharedInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; // Prevent newer renderers from RTE when used with older react package versions. + // Current owner and dispatcher used to share the same ref, + // but PR #14548 split them out to better support the react-debug-tools package. + + if (!ReactSharedInternals.hasOwnProperty('ReactCurrentDispatcher')) { + ReactSharedInternals.ReactCurrentDispatcher = { + current: null + }; + } + + if (!ReactSharedInternals.hasOwnProperty('ReactCurrentBatchConfig')) { + ReactSharedInternals.ReactCurrentBatchConfig = { + suspense: null + }; + } + + // by calls to these methods by a Babel plugin. + // + // In PROD (or in packages without access to React internals), + // they are left as they are instead. + + function warn(format) { + { + for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { + args[_key - 1] = arguments[_key]; + } + + printWarning('warn', format, args); + } + } + function error(format) { + { + for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) { + args[_key2 - 1] = arguments[_key2]; + } + + printWarning('error', format, args); + } + } + + function printWarning(level, format, args) { + // When changing this logic, you might want to also + // update consoleWithStackDev.www.js as well. + { + var hasExistingStack = args.length > 0 && typeof args[args.length - 1] === 'string' && args[args.length - 1].indexOf('\n in') === 0; + + if (!hasExistingStack) { + var ReactDebugCurrentFrame = ReactSharedInternals.ReactDebugCurrentFrame; + var stack = ReactDebugCurrentFrame.getStackAddendum(); + + if (stack !== '') { + format += '%s'; + args = args.concat([stack]); + } + } + + var argsWithFormat = args.map(function (item) { + return '' + item; + }); // Careful: RN currently depends on this prefix + + argsWithFormat.unshift('Warning: ' + format); // We intentionally don't use spread (or .apply) directly because it + // breaks IE9: https://github.com/facebook/react/issues/13610 + // eslint-disable-next-line react-internal/no-production-logging + + Function.prototype.apply.call(console[level], console, argsWithFormat); + + try { + // --- Welcome to debugging React --- + // This error was thrown as a convenience so that you can use this stack + // to find the callsite that caused this warning to fire. + var argIndex = 0; + var message = 'Warning: ' + format.replace(/%s/g, function () { + return args[argIndex++]; + }); + throw new Error(message); + } catch (x) {} + } + } + + { + // In DEV mode, we swap out invokeGuardedCallback for a special version + // that plays more nicely with the browser's DevTools. The idea is to preserve + // "Pause on exceptions" behavior. Because React wraps all user-provided + // functions in invokeGuardedCallback, and the production version of + // invokeGuardedCallback uses a try-catch, all user exceptions are treated + // like caught exceptions, and the DevTools won't pause unless the developer + // takes the extra step of enabling pause on caught exceptions. This is + // unintuitive, though, because even though React has caught the error, from + // the developer's perspective, the error is uncaught. + // + // To preserve the expected "Pause on exceptions" behavior, we don't use a + // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake + // DOM node, and call the user-provided callback from inside an event handler + // for that fake event. If the callback throws, the error is "captured" using + // a global event handler. But because the error happens in a different + // event loop context, it does not interrupt the normal program flow. + // Effectively, this gives us try-catch behavior without actually using + // try-catch. Neat! + // Check that the browser supports the APIs we need to implement our special + // DEV version of invokeGuardedCallback + if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') { + var fakeNode = document.createElement('react'); + } + } + + var getFiberCurrentPropsFromNode = null; + var getInstanceFromNode = null; + var getNodeFromInstance = null; + function setComponentTree(getFiberCurrentPropsFromNodeImpl, getInstanceFromNodeImpl, getNodeFromInstanceImpl) { + getFiberCurrentPropsFromNode = getFiberCurrentPropsFromNodeImpl; + getInstanceFromNode = getInstanceFromNodeImpl; + getNodeFromInstance = getNodeFromInstanceImpl; + + { + if (!getNodeFromInstance || !getInstanceFromNode) { + error('EventPluginUtils.setComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.'); + } + } + } + var validateEventDispatches; + + { + validateEventDispatches = function (event) { + var dispatchListeners = event._dispatchListeners; + var dispatchInstances = event._dispatchInstances; + var listenersIsArr = Array.isArray(dispatchListeners); + var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0; + var instancesIsArr = Array.isArray(dispatchInstances); + var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0; + + if (instancesIsArr !== listenersIsArr || instancesLen !== listenersLen) { + error('EventPluginUtils: Invalid `event`.'); + } + }; + } + /** + * Standard/simple iteration through an event's collected dispatches, but stops + * at the first dispatch execution returning true, and returns that id. + * + * @return {?string} id of the first dispatch execution who's listener returns + * true, or null if no listener returned true. + */ + + function executeDispatchesInOrderStopAtTrueImpl(event) { + var dispatchListeners = event._dispatchListeners; + var dispatchInstances = event._dispatchInstances; + + { + validateEventDispatches(event); + } + + if (Array.isArray(dispatchListeners)) { + for (var i = 0; i < dispatchListeners.length; i++) { + if (event.isPropagationStopped()) { + break; + } // Listeners and Instances are two parallel arrays that are always in sync. + + + if (dispatchListeners[i](event, dispatchInstances[i])) { + return dispatchInstances[i]; + } + } + } else if (dispatchListeners) { + if (dispatchListeners(event, dispatchInstances)) { + return dispatchInstances; + } + } + + return null; + } + /** + * @see executeDispatchesInOrderStopAtTrueImpl + */ + + + function executeDispatchesInOrderStopAtTrue(event) { + var ret = executeDispatchesInOrderStopAtTrueImpl(event); + event._dispatchInstances = null; + event._dispatchListeners = null; + return ret; + } + /** + * Execution of a "direct" dispatch - there must be at most one dispatch + * accumulated on the event or it is considered an error. It doesn't really make + * sense for an event with multiple dispatches (bubbled) to keep track of the + * return values at each dispatch execution, but it does tend to make sense when + * dealing with "direct" dispatches. + * + * @return {*} The return value of executing the single dispatch. + */ + + function executeDirectDispatch(event) { + { + validateEventDispatches(event); + } + + var dispatchListener = event._dispatchListeners; + var dispatchInstance = event._dispatchInstances; + + if (!!Array.isArray(dispatchListener)) { + { + throw Error( "executeDirectDispatch(...): Invalid `event`." ); + } + } + + event.currentTarget = dispatchListener ? getNodeFromInstance(dispatchInstance) : null; + var res = dispatchListener ? dispatchListener(event) : null; + event.currentTarget = null; + event._dispatchListeners = null; + event._dispatchInstances = null; + return res; + } + /** + * @param {SyntheticEvent} event + * @return {boolean} True iff number of dispatches accumulated is greater than 0. + */ + + function hasDispatches(event) { + return !!event._dispatchListeners; + } + + var HostComponent = 5; + + function getParent(inst) { + do { + inst = inst.return; // TODO: If this is a HostRoot we might want to bail out. + // That is depending on if we want nested subtrees (layers) to bubble + // events to their parent. We could also go through parentNode on the + // host node but that wouldn't work for React Native and doesn't let us + // do the portal feature. + } while (inst && inst.tag !== HostComponent); + + if (inst) { + return inst; + } + + return null; + } + /** + * Return the lowest common ancestor of A and B, or null if they are in + * different trees. + */ + + + function getLowestCommonAncestor(instA, instB) { + var depthA = 0; + + for (var tempA = instA; tempA; tempA = getParent(tempA)) { + depthA++; + } + + var depthB = 0; + + for (var tempB = instB; tempB; tempB = getParent(tempB)) { + depthB++; + } // If A is deeper, crawl up. + + + while (depthA - depthB > 0) { + instA = getParent(instA); + depthA--; + } // If B is deeper, crawl up. + + + while (depthB - depthA > 0) { + instB = getParent(instB); + depthB--; + } // Walk in lockstep until we find a match. + + + var depth = depthA; + + while (depth--) { + if (instA === instB || instA === instB.alternate) { + return instA; + } + + instA = getParent(instA); + instB = getParent(instB); + } + + return null; + } + /** + * Return if A is an ancestor of B. + */ + + function isAncestor(instA, instB) { + while (instB) { + if (instA === instB || instA === instB.alternate) { + return true; + } + + instB = getParent(instB); + } + + return false; + } + /** + * Return the parent instance of the passed-in instance. + */ + + function getParentInstance(inst) { + return getParent(inst); + } + /** + * Simulates the traversal of a two-phase, capture/bubble event dispatch. + */ + + function traverseTwoPhase(inst, fn, arg) { + var path = []; + + while (inst) { + path.push(inst); + inst = getParent(inst); + } + + var i; + + for (i = path.length; i-- > 0;) { + fn(path[i], 'captured', arg); + } + + for (i = 0; i < path.length; i++) { + fn(path[i], 'bubbled', arg); + } + } + + function isInteractive(tag) { + return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea'; + } + + function shouldPreventMouseEvent(name, type, props) { + switch (name) { + case 'onClick': + case 'onClickCapture': + case 'onDoubleClick': + case 'onDoubleClickCapture': + case 'onMouseDown': + case 'onMouseDownCapture': + case 'onMouseMove': + case 'onMouseMoveCapture': + case 'onMouseUp': + case 'onMouseUpCapture': + case 'onMouseEnter': + return !!(props.disabled && isInteractive(type)); + + default: + return false; + } + } + /** + * @param {object} inst The instance, which is the source of events. + * @param {string} registrationName Name of listener (e.g. `onClick`). + * @return {?function} The stored callback. + */ + + + function getListener(inst, registrationName) { + var listener; // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not + // live here; needs to be moved to a better place soon + + var stateNode = inst.stateNode; + + if (!stateNode) { + // Work in progress (ex: onload events in incremental mode). + return null; + } + + var props = getFiberCurrentPropsFromNode(stateNode); + + if (!props) { + // Work in progress. + return null; + } + + listener = props[registrationName]; + + if (shouldPreventMouseEvent(registrationName, inst.type, props)) { + return null; + } + + if (!(!listener || typeof listener === 'function')) { + { + throw Error( "Expected `" + registrationName + "` listener to be a function, instead got a value of `" + typeof listener + "` type." ); + } + } + + return listener; + } + + /** + * Accumulates items that must not be null or undefined into the first one. This + * is used to conserve memory by avoiding array allocations, and thus sacrifices + * API cleanness. Since `current` can be null before being passed in and not + * null after this function, make sure to assign it back to `current`: + * + * `a = accumulateInto(a, b);` + * + * This API should be sparingly used. Try `accumulate` for something cleaner. + * + * @return {*|array<*>} An accumulation of items. + */ + + function accumulateInto(current, next) { + if (!(next != null)) { + { + throw Error( "accumulateInto(...): Accumulated items must not be null or undefined." ); + } + } + + if (current == null) { + return next; + } // Both are not empty. Warning: Never call x.concat(y) when you are not + // certain that x is an Array (x could be a string with concat method). + + + if (Array.isArray(current)) { + if (Array.isArray(next)) { + current.push.apply(current, next); + return current; + } + + current.push(next); + return current; + } + + if (Array.isArray(next)) { + // A bit too dangerous to mutate `next`. + return [current].concat(next); + } + + return [current, next]; + } + + /** + * @param {array} arr an "accumulation" of items which is either an Array or + * a single item. Useful when paired with the `accumulate` module. This is a + * simple utility that allows us to reason about a collection of items, but + * handling the case when there is exactly one item (and we do not need to + * allocate an array). + * @param {function} cb Callback invoked with each element or a collection. + * @param {?} [scope] Scope used as `this` in a callback. + */ + function forEachAccumulated(arr, cb, scope) { + if (Array.isArray(arr)) { + arr.forEach(cb, scope); + } else if (arr) { + cb.call(scope, arr); + } + } + + /** + * Some event types have a notion of different registration names for different + * "phases" of propagation. This finds listeners by a given phase. + */ + function listenerAtPhase(inst, event, propagationPhase) { + var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase]; + return getListener(inst, registrationName); + } + /** + * A small set of propagation patterns, each of which will accept a small amount + * of information, and generate a set of "dispatch ready event objects" - which + * are sets of events that have already been annotated with a set of dispatched + * listener functions/ids. The API is designed this way to discourage these + * propagation strategies from actually executing the dispatches, since we + * always want to collect the entire set of dispatches before executing even a + * single one. + */ + + /** + * Tags a `SyntheticEvent` with dispatched listeners. Creating this function + * here, allows us to not have to bind or create functions for each event. + * Mutating the event's members allows us to not have to create a wrapping + * "dispatch" object that pairs the event with the listener. + */ + + + function accumulateDirectionalDispatches(inst, phase, event) { + { + if (!inst) { + error('Dispatching inst must not be null'); + } + } + + var listener = listenerAtPhase(inst, event, phase); + + if (listener) { + event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); + event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); + } + } + /** + * Collect dispatches (must be entirely collected before dispatching - see unit + * tests). Lazily allocate the array to conserve memory. We must loop through + * each event and perform the traversal for each one. We cannot perform a + * single traversal for the entire collection of events because each event may + * have a different target. + */ + + + function accumulateTwoPhaseDispatchesSingle(event) { + if (event && event.dispatchConfig.phasedRegistrationNames) { + traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event); + } + } + /** + * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID. + */ + + + function accumulateTwoPhaseDispatchesSingleSkipTarget(event) { + if (event && event.dispatchConfig.phasedRegistrationNames) { + var targetInst = event._targetInst; + var parentInst = targetInst ? getParentInstance(targetInst) : null; + traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event); + } + } + /** + * Accumulates without regard to direction, does not look for phased + * registration names. Same as `accumulateDirectDispatchesSingle` but without + * requiring that the `dispatchMarker` be the same as the dispatched ID. + */ + + + function accumulateDispatches(inst, ignoredDirection, event) { + if (inst && event && event.dispatchConfig.registrationName) { + var registrationName = event.dispatchConfig.registrationName; + var listener = getListener(inst, registrationName); + + if (listener) { + event._dispatchListeners = accumulateInto(event._dispatchListeners, listener); + event._dispatchInstances = accumulateInto(event._dispatchInstances, inst); + } + } + } + /** + * Accumulates dispatches on an `SyntheticEvent`, but only for the + * `dispatchMarker`. + * @param {SyntheticEvent} event + */ + + + function accumulateDirectDispatchesSingle(event) { + if (event && event.dispatchConfig.registrationName) { + accumulateDispatches(event._targetInst, null, event); + } + } + + function accumulateTwoPhaseDispatches(events) { + forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle); + } + function accumulateTwoPhaseDispatchesSkipTarget(events) { + forEachAccumulated(events, accumulateTwoPhaseDispatchesSingleSkipTarget); + } + function accumulateDirectDispatches(events) { + forEachAccumulated(events, accumulateDirectDispatchesSingle); + } + + var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED; + var _assign = ReactInternals.assign; + + var EVENT_POOL_SIZE = 10; + /** + * @interface Event + * @see http://www.w3.org/TR/DOM-Level-3-Events/ + */ + + var EventInterface = { + type: null, + target: null, + // currentTarget is set when dispatching; no use in copying it here + currentTarget: function () { + return null; + }, + eventPhase: null, + bubbles: null, + cancelable: null, + timeStamp: function (event) { + return event.timeStamp || Date.now(); + }, + defaultPrevented: null, + isTrusted: null + }; + + function functionThatReturnsTrue() { + return true; + } + + function functionThatReturnsFalse() { + return false; + } + /** + * Synthetic events are dispatched by event plugins, typically in response to a + * top-level event delegation handler. + * + * These systems should generally use pooling to reduce the frequency of garbage + * collection. The system should check `isPersistent` to determine whether the + * event should be released into the pool after being dispatched. Users that + * need a persisted event should invoke `persist`. + * + * Synthetic events (and subclasses) implement the DOM Level 3 Events API by + * normalizing browser quirks. Subclasses do not necessarily have to implement a + * DOM interface; custom application-specific events can also subclass this. + * + * @param {object} dispatchConfig Configuration used to dispatch this event. + * @param {*} targetInst Marker identifying the event target. + * @param {object} nativeEvent Native browser event. + * @param {DOMEventTarget} nativeEventTarget Target node. + */ + + + function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) { + { + // these have a getter/setter for warnings + delete this.nativeEvent; + delete this.preventDefault; + delete this.stopPropagation; + delete this.isDefaultPrevented; + delete this.isPropagationStopped; + } + + this.dispatchConfig = dispatchConfig; + this._targetInst = targetInst; + this.nativeEvent = nativeEvent; + var Interface = this.constructor.Interface; + + for (var propName in Interface) { + if (!Interface.hasOwnProperty(propName)) { + continue; + } + + { + delete this[propName]; // this has a getter/setter for warnings + } + + var normalize = Interface[propName]; + + if (normalize) { + this[propName] = normalize(nativeEvent); + } else { + if (propName === 'target') { + this.target = nativeEventTarget; + } else { + this[propName] = nativeEvent[propName]; + } + } + } + + var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false; + + if (defaultPrevented) { + this.isDefaultPrevented = functionThatReturnsTrue; + } else { + this.isDefaultPrevented = functionThatReturnsFalse; + } + + this.isPropagationStopped = functionThatReturnsFalse; + return this; + } + + _assign(SyntheticEvent.prototype, { + preventDefault: function () { + this.defaultPrevented = true; + var event = this.nativeEvent; + + if (!event) { + return; + } + + if (event.preventDefault) { + event.preventDefault(); + } else if (typeof event.returnValue !== 'unknown') { + event.returnValue = false; + } + + this.isDefaultPrevented = functionThatReturnsTrue; + }, + stopPropagation: function () { + var event = this.nativeEvent; + + if (!event) { + return; + } + + if (event.stopPropagation) { + event.stopPropagation(); + } else if (typeof event.cancelBubble !== 'unknown') { + // The ChangeEventPlugin registers a "propertychange" event for + // IE. This event does not support bubbling or cancelling, and + // any references to cancelBubble throw "Member not found". A + // typeof check of "unknown" circumvents this issue (and is also + // IE specific). + event.cancelBubble = true; + } + + this.isPropagationStopped = functionThatReturnsTrue; + }, + + /** + * We release all dispatched `SyntheticEvent`s after each event loop, adding + * them back into the pool. This allows a way to hold onto a reference that + * won't be added back into the pool. + */ + persist: function () { + this.isPersistent = functionThatReturnsTrue; + }, + + /** + * Checks if this event should be released back into the pool. + * + * @return {boolean} True if this should not be released, false otherwise. + */ + isPersistent: functionThatReturnsFalse, + + /** + * `PooledClass` looks for `destructor` on each instance it releases. + */ + destructor: function () { + var Interface = this.constructor.Interface; + + for (var propName in Interface) { + { + Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName])); + } + } + + this.dispatchConfig = null; + this._targetInst = null; + this.nativeEvent = null; + this.isDefaultPrevented = functionThatReturnsFalse; + this.isPropagationStopped = functionThatReturnsFalse; + this._dispatchListeners = null; + this._dispatchInstances = null; + + { + Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null)); + Object.defineProperty(this, 'isDefaultPrevented', getPooledWarningPropertyDefinition('isDefaultPrevented', functionThatReturnsFalse)); + Object.defineProperty(this, 'isPropagationStopped', getPooledWarningPropertyDefinition('isPropagationStopped', functionThatReturnsFalse)); + Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', function () {})); + Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', function () {})); + } + } + }); + + SyntheticEvent.Interface = EventInterface; + /** + * Helper to reduce boilerplate when creating subclasses. + */ + + SyntheticEvent.extend = function (Interface) { + var Super = this; + + var E = function () {}; + + E.prototype = Super.prototype; + var prototype = new E(); + + function Class() { + return Super.apply(this, arguments); + } + + _assign(prototype, Class.prototype); + + Class.prototype = prototype; + Class.prototype.constructor = Class; + Class.Interface = _assign({}, Super.Interface, Interface); + Class.extend = Super.extend; + addEventPoolingTo(Class); + return Class; + }; + + addEventPoolingTo(SyntheticEvent); + /** + * Helper to nullify syntheticEvent instance properties when destructing + * + * @param {String} propName + * @param {?object} getVal + * @return {object} defineProperty object + */ + + function getPooledWarningPropertyDefinition(propName, getVal) { + var isFunction = typeof getVal === 'function'; + return { + configurable: true, + set: set, + get: get + }; + + function set(val) { + var action = isFunction ? 'setting the method' : 'setting the property'; + warn(action, 'This is effectively a no-op'); + return val; + } + + function get() { + var action = isFunction ? 'accessing the method' : 'accessing the property'; + var result = isFunction ? 'This is a no-op function' : 'This is set to null'; + warn(action, result); + return getVal; + } + + function warn(action, result) { + { + error("This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result); + } + } + } + + function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) { + var EventConstructor = this; + + if (EventConstructor.eventPool.length) { + var instance = EventConstructor.eventPool.pop(); + EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst); + return instance; + } + + return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst); + } + + function releasePooledEvent(event) { + var EventConstructor = this; + + if (!(event instanceof EventConstructor)) { + { + throw Error( "Trying to release an event instance into a pool of a different type." ); + } + } + + event.destructor(); + + if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) { + EventConstructor.eventPool.push(event); + } + } + + function addEventPoolingTo(EventConstructor) { + EventConstructor.eventPool = []; + EventConstructor.getPooled = getPooledEvent; + EventConstructor.release = releasePooledEvent; + } + + /** + * `touchHistory` isn't actually on the native event, but putting it in the + * interface will ensure that it is cleaned up when pooled/destroyed. The + * `ResponderEventPlugin` will populate it appropriately. + */ + + var ResponderSyntheticEvent = SyntheticEvent.extend({ + touchHistory: function (nativeEvent) { + return null; // Actually doesn't even look at the native event. + } + }); + + // Note: ideally these would be imported from DOMTopLevelEventTypes, + // but our build system currently doesn't let us do that from a fork. + var TOP_TOUCH_START = 'touchstart'; + var TOP_TOUCH_MOVE = 'touchmove'; + var TOP_TOUCH_END = 'touchend'; + var TOP_TOUCH_CANCEL = 'touchcancel'; + var TOP_SCROLL = 'scroll'; + var TOP_SELECTION_CHANGE = 'selectionchange'; + var TOP_MOUSE_DOWN = 'mousedown'; + var TOP_MOUSE_MOVE = 'mousemove'; + var TOP_MOUSE_UP = 'mouseup'; + function isStartish(topLevelType) { + return topLevelType === TOP_TOUCH_START || topLevelType === TOP_MOUSE_DOWN; + } + function isMoveish(topLevelType) { + return topLevelType === TOP_TOUCH_MOVE || topLevelType === TOP_MOUSE_MOVE; + } + function isEndish(topLevelType) { + return topLevelType === TOP_TOUCH_END || topLevelType === TOP_TOUCH_CANCEL || topLevelType === TOP_MOUSE_UP; + } + var startDependencies = [TOP_TOUCH_START, TOP_MOUSE_DOWN]; + var moveDependencies = [TOP_TOUCH_MOVE, TOP_MOUSE_MOVE]; + var endDependencies = [TOP_TOUCH_CANCEL, TOP_TOUCH_END, TOP_MOUSE_UP]; + + /** + * Tracks the position and time of each active touch by `touch.identifier`. We + * should typically only see IDs in the range of 1-20 because IDs get recycled + * when touches end and start again. + */ + + var MAX_TOUCH_BANK = 20; + var touchBank = []; + var touchHistory = { + touchBank: touchBank, + numberActiveTouches: 0, + // If there is only one active touch, we remember its location. This prevents + // us having to loop through all of the touches all the time in the most + // common case. + indexOfSingleActiveTouch: -1, + mostRecentTimeStamp: 0 + }; + + function timestampForTouch(touch) { + // The legacy internal implementation provides "timeStamp", which has been + // renamed to "timestamp". Let both work for now while we iron it out + // TODO (evv): rename timeStamp to timestamp in internal code + return touch.timeStamp || touch.timestamp; + } + /** + * TODO: Instead of making gestures recompute filtered velocity, we could + * include a built in velocity computation that can be reused globally. + */ + + + function createTouchRecord(touch) { + return { + touchActive: true, + startPageX: touch.pageX, + startPageY: touch.pageY, + startTimeStamp: timestampForTouch(touch), + currentPageX: touch.pageX, + currentPageY: touch.pageY, + currentTimeStamp: timestampForTouch(touch), + previousPageX: touch.pageX, + previousPageY: touch.pageY, + previousTimeStamp: timestampForTouch(touch) + }; + } + + function resetTouchRecord(touchRecord, touch) { + touchRecord.touchActive = true; + touchRecord.startPageX = touch.pageX; + touchRecord.startPageY = touch.pageY; + touchRecord.startTimeStamp = timestampForTouch(touch); + touchRecord.currentPageX = touch.pageX; + touchRecord.currentPageY = touch.pageY; + touchRecord.currentTimeStamp = timestampForTouch(touch); + touchRecord.previousPageX = touch.pageX; + touchRecord.previousPageY = touch.pageY; + touchRecord.previousTimeStamp = timestampForTouch(touch); + } + + function getTouchIdentifier(_ref) { + var identifier = _ref.identifier; + + if (!(identifier != null)) { + { + throw Error( "Touch object is missing identifier." ); + } + } + + { + if (identifier > MAX_TOUCH_BANK) { + error('Touch identifier %s is greater than maximum supported %s which causes ' + 'performance issues backfilling array locations for all of the indices.', identifier, MAX_TOUCH_BANK); + } + } + + return identifier; + } + + function recordTouchStart(touch) { + var identifier = getTouchIdentifier(touch); + var touchRecord = touchBank[identifier]; + + if (touchRecord) { + resetTouchRecord(touchRecord, touch); + } else { + touchBank[identifier] = createTouchRecord(touch); + } + + touchHistory.mostRecentTimeStamp = timestampForTouch(touch); + } + + function recordTouchMove(touch) { + var touchRecord = touchBank[getTouchIdentifier(touch)]; + + if (touchRecord) { + touchRecord.touchActive = true; + touchRecord.previousPageX = touchRecord.currentPageX; + touchRecord.previousPageY = touchRecord.currentPageY; + touchRecord.previousTimeStamp = touchRecord.currentTimeStamp; + touchRecord.currentPageX = touch.pageX; + touchRecord.currentPageY = touch.pageY; + touchRecord.currentTimeStamp = timestampForTouch(touch); + touchHistory.mostRecentTimeStamp = timestampForTouch(touch); + } else { + { + warn('Cannot record touch move without a touch start.\n' + 'Touch Move: %s\n' + 'Touch Bank: %s', printTouch(touch), printTouchBank()); + } + } + } + + function recordTouchEnd(touch) { + var touchRecord = touchBank[getTouchIdentifier(touch)]; + + if (touchRecord) { + touchRecord.touchActive = false; + touchRecord.previousPageX = touchRecord.currentPageX; + touchRecord.previousPageY = touchRecord.currentPageY; + touchRecord.previousTimeStamp = touchRecord.currentTimeStamp; + touchRecord.currentPageX = touch.pageX; + touchRecord.currentPageY = touch.pageY; + touchRecord.currentTimeStamp = timestampForTouch(touch); + touchHistory.mostRecentTimeStamp = timestampForTouch(touch); + } else { + { + warn('Cannot record touch end without a touch start.\n' + 'Touch End: %s\n' + 'Touch Bank: %s', printTouch(touch), printTouchBank()); + } + } + } + + function printTouch(touch) { + return JSON.stringify({ + identifier: touch.identifier, + pageX: touch.pageX, + pageY: touch.pageY, + timestamp: timestampForTouch(touch) + }); + } + + function printTouchBank() { + var printed = JSON.stringify(touchBank.slice(0, MAX_TOUCH_BANK)); + + if (touchBank.length > MAX_TOUCH_BANK) { + printed += ' (original size: ' + touchBank.length + ')'; + } + + return printed; + } + + var ResponderTouchHistoryStore = { + recordTouchTrack: function (topLevelType, nativeEvent) { + if (isMoveish(topLevelType)) { + nativeEvent.changedTouches.forEach(recordTouchMove); + } else if (isStartish(topLevelType)) { + nativeEvent.changedTouches.forEach(recordTouchStart); + touchHistory.numberActiveTouches = nativeEvent.touches.length; + + if (touchHistory.numberActiveTouches === 1) { + touchHistory.indexOfSingleActiveTouch = nativeEvent.touches[0].identifier; + } + } else if (isEndish(topLevelType)) { + nativeEvent.changedTouches.forEach(recordTouchEnd); + touchHistory.numberActiveTouches = nativeEvent.touches.length; + + if (touchHistory.numberActiveTouches === 1) { + for (var i = 0; i < touchBank.length; i++) { + var touchTrackToCheck = touchBank[i]; + + if (touchTrackToCheck != null && touchTrackToCheck.touchActive) { + touchHistory.indexOfSingleActiveTouch = i; + break; + } + } + + { + var activeRecord = touchBank[touchHistory.indexOfSingleActiveTouch]; + + if (activeRecord == null || !activeRecord.touchActive) { + error('Cannot find single active touch.'); + } + } + } + } + }, + touchHistory: touchHistory + }; + + /** + * Accumulates items that must not be null or undefined. + * + * This is used to conserve memory by avoiding array allocations. + * + * @return {*|array<*>} An accumulation of items. + */ + + function accumulate(current, next) { + if (!(next != null)) { + { + throw Error( "accumulate(...): Accumulated items must not be null or undefined." ); + } + } + + if (current == null) { + return next; + } // Both are not empty. Warning: Never call x.concat(y) when you are not + // certain that x is an Array (x could be a string with concat method). + + + if (Array.isArray(current)) { + return current.concat(next); + } + + if (Array.isArray(next)) { + return [current].concat(next); + } + + return [current, next]; + } + + /** + * Instance of element that should respond to touch/move types of interactions, + * as indicated explicitly by relevant callbacks. + */ + + var responderInst = null; + /** + * Count of current touches. A textInput should become responder iff the + * selection changes while there is a touch on the screen. + */ + + var trackedTouchCount = 0; + + var changeResponder = function (nextResponderInst, blockHostResponder) { + var oldResponderInst = responderInst; + responderInst = nextResponderInst; + + if (ResponderEventPlugin.GlobalResponderHandler !== null) { + ResponderEventPlugin.GlobalResponderHandler.onChange(oldResponderInst, nextResponderInst, blockHostResponder); + } + }; + + var eventTypes = { + /** + * On a `touchStart`/`mouseDown`, is it desired that this element become the + * responder? + */ + startShouldSetResponder: { + phasedRegistrationNames: { + bubbled: 'onStartShouldSetResponder', + captured: 'onStartShouldSetResponderCapture' + }, + dependencies: startDependencies + }, + + /** + * On a `scroll`, is it desired that this element become the responder? This + * is usually not needed, but should be used to retroactively infer that a + * `touchStart` had occurred during momentum scroll. During a momentum scroll, + * a touch start will be immediately followed by a scroll event if the view is + * currently scrolling. + * + * TODO: This shouldn't bubble. + */ + scrollShouldSetResponder: { + phasedRegistrationNames: { + bubbled: 'onScrollShouldSetResponder', + captured: 'onScrollShouldSetResponderCapture' + }, + dependencies: [TOP_SCROLL] + }, + + /** + * On text selection change, should this element become the responder? This + * is needed for text inputs or other views with native selection, so the + * JS view can claim the responder. + * + * TODO: This shouldn't bubble. + */ + selectionChangeShouldSetResponder: { + phasedRegistrationNames: { + bubbled: 'onSelectionChangeShouldSetResponder', + captured: 'onSelectionChangeShouldSetResponderCapture' + }, + dependencies: [TOP_SELECTION_CHANGE] + }, + + /** + * On a `touchMove`/`mouseMove`, is it desired that this element become the + * responder? + */ + moveShouldSetResponder: { + phasedRegistrationNames: { + bubbled: 'onMoveShouldSetResponder', + captured: 'onMoveShouldSetResponderCapture' + }, + dependencies: moveDependencies + }, + + /** + * Direct responder events dispatched directly to responder. Do not bubble. + */ + responderStart: { + registrationName: 'onResponderStart', + dependencies: startDependencies + }, + responderMove: { + registrationName: 'onResponderMove', + dependencies: moveDependencies + }, + responderEnd: { + registrationName: 'onResponderEnd', + dependencies: endDependencies + }, + responderRelease: { + registrationName: 'onResponderRelease', + dependencies: endDependencies + }, + responderTerminationRequest: { + registrationName: 'onResponderTerminationRequest', + dependencies: [] + }, + responderGrant: { + registrationName: 'onResponderGrant', + dependencies: [] + }, + responderReject: { + registrationName: 'onResponderReject', + dependencies: [] + }, + responderTerminate: { + registrationName: 'onResponderTerminate', + dependencies: [] + } + }; + /** + * + * Responder System: + * ---------------- + * + * - A global, solitary "interaction lock" on a view. + * - If a node becomes the responder, it should convey visual feedback + * immediately to indicate so, either by highlighting or moving accordingly. + * - To be the responder means, that touches are exclusively important to that + * responder view, and no other view. + * - While touches are still occurring, the responder lock can be transferred to + * a new view, but only to increasingly "higher" views (meaning ancestors of + * the current responder). + * + * Responder being granted: + * ------------------------ + * + * - Touch starts, moves, and scrolls can cause an ID to become the responder. + * - We capture/bubble `startShouldSetResponder`/`moveShouldSetResponder` to + * the "appropriate place". + * - If nothing is currently the responder, the "appropriate place" is the + * initiating event's `targetID`. + * - If something *is* already the responder, the "appropriate place" is the + * first common ancestor of the event target and the current `responderInst`. + * - Some negotiation happens: See the timing diagram below. + * - Scrolled views automatically become responder. The reasoning is that a + * platform scroll view that isn't built on top of the responder system has + * began scrolling, and the active responder must now be notified that the + * interaction is no longer locked to it - the system has taken over. + * + * - Responder being released: + * As soon as no more touches that *started* inside of descendants of the + * *current* responderInst, an `onResponderRelease` event is dispatched to the + * current responder, and the responder lock is released. + * + * TODO: + * - on "end", a callback hook for `onResponderEndShouldRemainResponder` that + * determines if the responder lock should remain. + * - If a view shouldn't "remain" the responder, any active touches should by + * default be considered "dead" and do not influence future negotiations or + * bubble paths. It should be as if those touches do not exist. + * -- For multitouch: Usually a translate-z will choose to "remain" responder + * after one out of many touches ended. For translate-y, usually the view + * doesn't wish to "remain" responder after one of many touches end. + * - Consider building this on top of a `stopPropagation` model similar to + * `W3C` events. + * - Ensure that `onResponderTerminate` is called on touch cancels, whether or + * not `onResponderTerminationRequest` returns `true` or `false`. + * + */ + + /* Negotiation Performed + +-----------------------+ + / \ + Process low level events to + Current Responder + wantsResponderID + determine who to perform negot-| (if any exists at all) | + iation/transition | Otherwise just pass through| + -------------------------------+----------------------------+------------------+ + Bubble to find first ID | | + to return true:wantsResponderID| | + | | + +-------------+ | | + | onTouchStart| | | + +------+------+ none | | + | return| | + +-----------v-------------+true| +------------------------+ | + |onStartShouldSetResponder|----->|onResponderStart (cur) |<-----------+ + +-----------+-------------+ | +------------------------+ | | + | | | +--------+-------+ + | returned true for| false:REJECT +-------->|onResponderReject + | wantsResponderID | | | +----------------+ + | (now attempt | +------------------+-----+ | + | handoff) | | onResponder | | + +------------------->| TerminationRequest| | + | +------------------+-----+ | + | | | +----------------+ + | true:GRANT +-------->|onResponderGrant| + | | +--------+-------+ + | +------------------------+ | | + | | onResponderTerminate |<-----------+ + | +------------------+-----+ | + | | | +----------------+ + | +-------->|onResponderStart| + | | +----------------+ + Bubble to find first ID | | + to return true:wantsResponderID| | + | | + +-------------+ | | + | onTouchMove | | | + +------+------+ none | | + | return| | + +-----------v-------------+true| +------------------------+ | + |onMoveShouldSetResponder |----->|onResponderMove (cur) |<-----------+ + +-----------+-------------+ | +------------------------+ | | + | | | +--------+-------+ + | returned true for| false:REJECT +-------->|onResponderRejec| + | wantsResponderID | | | +----------------+ + | (now attempt | +------------------+-----+ | + | handoff) | | onResponder | | + +------------------->| TerminationRequest| | + | +------------------+-----+ | + | | | +----------------+ + | true:GRANT +-------->|onResponderGrant| + | | +--------+-------+ + | +------------------------+ | | + | | onResponderTerminate |<-----------+ + | +------------------+-----+ | + | | | +----------------+ + | +-------->|onResponderMove | + | | +----------------+ + | | + | | + Some active touch started| | + inside current responder | +------------------------+ | + +------------------------->| onResponderEnd | | + | | +------------------------+ | + +---+---------+ | | + | onTouchEnd | | | + +---+---------+ | | + | | +------------------------+ | + +------------------------->| onResponderEnd | | + No active touches started| +-----------+------------+ | + inside current responder | | | + | v | + | +------------------------+ | + | | onResponderRelease | | + | +------------------------+ | + | | + + + */ + + /** + * A note about event ordering in the `EventPluginRegistry`. + * + * Suppose plugins are injected in the following order: + * + * `[R, S, C]` + * + * To help illustrate the example, assume `S` is `SimpleEventPlugin` (for + * `onClick` etc) and `R` is `ResponderEventPlugin`. + * + * "Deferred-Dispatched Events": + * + * - The current event plugin system will traverse the list of injected plugins, + * in order, and extract events by collecting the plugin's return value of + * `extractEvents()`. + * - These events that are returned from `extractEvents` are "deferred + * dispatched events". + * - When returned from `extractEvents`, deferred-dispatched events contain an + * "accumulation" of deferred dispatches. + * - These deferred dispatches are accumulated/collected before they are + * returned, but processed at a later time by the `EventPluginRegistry` (hence the + * name deferred). + * + * In the process of returning their deferred-dispatched events, event plugins + * themselves can dispatch events on-demand without returning them from + * `extractEvents`. Plugins might want to do this, so that they can use event + * dispatching as a tool that helps them decide which events should be extracted + * in the first place. + * + * "On-Demand-Dispatched Events": + * + * - On-demand-dispatched events are not returned from `extractEvents`. + * - On-demand-dispatched events are dispatched during the process of returning + * the deferred-dispatched events. + * - They should not have side effects. + * - They should be avoided, and/or eventually be replaced with another + * abstraction that allows event plugins to perform multiple "rounds" of event + * extraction. + * + * Therefore, the sequence of event dispatches becomes: + * + * - `R`s on-demand events (if any) (dispatched by `R` on-demand) + * - `S`s on-demand events (if any) (dispatched by `S` on-demand) + * - `C`s on-demand events (if any) (dispatched by `C` on-demand) + * - `R`s extracted events (if any) (dispatched by `EventPluginRegistry`) + * - `S`s extracted events (if any) (dispatched by `EventPluginRegistry`) + * - `C`s extracted events (if any) (dispatched by `EventPluginRegistry`) + * + * In the case of `ResponderEventPlugin`: If the `startShouldSetResponder` + * on-demand dispatch returns `true` (and some other details are satisfied) the + * `onResponderGrant` deferred dispatched event is returned from + * `extractEvents`. The sequence of dispatch executions in this case + * will appear as follows: + * + * - `startShouldSetResponder` (`ResponderEventPlugin` dispatches on-demand) + * - `touchStartCapture` (`EventPluginRegistry` dispatches as usual) + * - `touchStart` (`EventPluginRegistry` dispatches as usual) + * - `responderGrant/Reject` (`EventPluginRegistry` dispatches as usual) + */ + + function setResponderAndExtractTransfer(topLevelType, targetInst, nativeEvent, nativeEventTarget) { + var shouldSetEventType = isStartish(topLevelType) ? eventTypes.startShouldSetResponder : isMoveish(topLevelType) ? eventTypes.moveShouldSetResponder : topLevelType === TOP_SELECTION_CHANGE ? eventTypes.selectionChangeShouldSetResponder : eventTypes.scrollShouldSetResponder; // TODO: stop one short of the current responder. + + var bubbleShouldSetFrom = !responderInst ? targetInst : getLowestCommonAncestor(responderInst, targetInst); // When capturing/bubbling the "shouldSet" event, we want to skip the target + // (deepest ID) if it happens to be the current responder. The reasoning: + // It's strange to get an `onMoveShouldSetResponder` when you're *already* + // the responder. + + var skipOverBubbleShouldSetFrom = bubbleShouldSetFrom === responderInst; + var shouldSetEvent = ResponderSyntheticEvent.getPooled(shouldSetEventType, bubbleShouldSetFrom, nativeEvent, nativeEventTarget); + shouldSetEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + + if (skipOverBubbleShouldSetFrom) { + accumulateTwoPhaseDispatchesSkipTarget(shouldSetEvent); + } else { + accumulateTwoPhaseDispatches(shouldSetEvent); + } + + var wantsResponderInst = executeDispatchesInOrderStopAtTrue(shouldSetEvent); + + if (!shouldSetEvent.isPersistent()) { + shouldSetEvent.constructor.release(shouldSetEvent); + } + + if (!wantsResponderInst || wantsResponderInst === responderInst) { + return null; + } + + var extracted; + var grantEvent = ResponderSyntheticEvent.getPooled(eventTypes.responderGrant, wantsResponderInst, nativeEvent, nativeEventTarget); + grantEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(grantEvent); + var blockHostResponder = executeDirectDispatch(grantEvent) === true; + + if (responderInst) { + var terminationRequestEvent = ResponderSyntheticEvent.getPooled(eventTypes.responderTerminationRequest, responderInst, nativeEvent, nativeEventTarget); + terminationRequestEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(terminationRequestEvent); + var shouldSwitch = !hasDispatches(terminationRequestEvent) || executeDirectDispatch(terminationRequestEvent); + + if (!terminationRequestEvent.isPersistent()) { + terminationRequestEvent.constructor.release(terminationRequestEvent); + } + + if (shouldSwitch) { + var terminateEvent = ResponderSyntheticEvent.getPooled(eventTypes.responderTerminate, responderInst, nativeEvent, nativeEventTarget); + terminateEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(terminateEvent); + extracted = accumulate(extracted, [grantEvent, terminateEvent]); + changeResponder(wantsResponderInst, blockHostResponder); + } else { + var rejectEvent = ResponderSyntheticEvent.getPooled(eventTypes.responderReject, wantsResponderInst, nativeEvent, nativeEventTarget); + rejectEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(rejectEvent); + extracted = accumulate(extracted, rejectEvent); + } + } else { + extracted = accumulate(extracted, grantEvent); + changeResponder(wantsResponderInst, blockHostResponder); + } + + return extracted; + } + /** + * A transfer is a negotiation between a currently set responder and the next + * element to claim responder status. Any start event could trigger a transfer + * of responderInst. Any move event could trigger a transfer. + * + * @param {string} topLevelType Record from `BrowserEventConstants`. + * @return {boolean} True if a transfer of responder could possibly occur. + */ + + + function canTriggerTransfer(topLevelType, topLevelInst, nativeEvent) { + return topLevelInst && ( // responderIgnoreScroll: We are trying to migrate away from specifically + // tracking native scroll events here and responderIgnoreScroll indicates we + // will send topTouchCancel to handle canceling touch events instead + topLevelType === TOP_SCROLL && !nativeEvent.responderIgnoreScroll || trackedTouchCount > 0 && topLevelType === TOP_SELECTION_CHANGE || isStartish(topLevelType) || isMoveish(topLevelType)); + } + /** + * Returns whether or not this touch end event makes it such that there are no + * longer any touches that started inside of the current `responderInst`. + * + * @param {NativeEvent} nativeEvent Native touch end event. + * @return {boolean} Whether or not this touch end event ends the responder. + */ + + + function noResponderTouches(nativeEvent) { + var touches = nativeEvent.touches; + + if (!touches || touches.length === 0) { + return true; + } + + for (var i = 0; i < touches.length; i++) { + var activeTouch = touches[i]; + var target = activeTouch.target; + + if (target !== null && target !== undefined && target !== 0) { + // Is the original touch location inside of the current responder? + var targetInst = getInstanceFromNode(target); + + if (isAncestor(responderInst, targetInst)) { + return false; + } + } + } + + return true; + } + + var ResponderEventPlugin = { + /* For unit testing only */ + _getResponder: function () { + return responderInst; + }, + eventTypes: eventTypes, + + /** + * We must be resilient to `targetInst` being `null` on `touchMove` or + * `touchEnd`. On certain platforms, this means that a native scroll has + * assumed control and the original touch targets are destroyed. + */ + extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget, eventSystemFlags) { + if (isStartish(topLevelType)) { + trackedTouchCount += 1; + } else if (isEndish(topLevelType)) { + if (trackedTouchCount >= 0) { + trackedTouchCount -= 1; + } else { + { + warn('Ended a touch event which was not counted in `trackedTouchCount`.'); + } + + return null; + } + } + + ResponderTouchHistoryStore.recordTouchTrack(topLevelType, nativeEvent); + var extracted = canTriggerTransfer(topLevelType, targetInst, nativeEvent) ? setResponderAndExtractTransfer(topLevelType, targetInst, nativeEvent, nativeEventTarget) : null; // Responder may or may not have transferred on a new touch start/move. + // Regardless, whoever is the responder after any potential transfer, we + // direct all touch start/move/ends to them in the form of + // `onResponderMove/Start/End`. These will be called for *every* additional + // finger that move/start/end, dispatched directly to whoever is the + // current responder at that moment, until the responder is "released". + // + // These multiple individual change touch events are are always bookended + // by `onResponderGrant`, and one of + // (`onResponderRelease/onResponderTerminate`). + + var isResponderTouchStart = responderInst && isStartish(topLevelType); + var isResponderTouchMove = responderInst && isMoveish(topLevelType); + var isResponderTouchEnd = responderInst && isEndish(topLevelType); + var incrementalTouch = isResponderTouchStart ? eventTypes.responderStart : isResponderTouchMove ? eventTypes.responderMove : isResponderTouchEnd ? eventTypes.responderEnd : null; + + if (incrementalTouch) { + var gesture = ResponderSyntheticEvent.getPooled(incrementalTouch, responderInst, nativeEvent, nativeEventTarget); + gesture.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(gesture); + extracted = accumulate(extracted, gesture); + } + + var isResponderTerminate = responderInst && topLevelType === TOP_TOUCH_CANCEL; + var isResponderRelease = responderInst && !isResponderTerminate && isEndish(topLevelType) && noResponderTouches(nativeEvent); + var finalTouch = isResponderTerminate ? eventTypes.responderTerminate : isResponderRelease ? eventTypes.responderRelease : null; + + if (finalTouch) { + var finalEvent = ResponderSyntheticEvent.getPooled(finalTouch, responderInst, nativeEvent, nativeEventTarget); + finalEvent.touchHistory = ResponderTouchHistoryStore.touchHistory; + accumulateDirectDispatches(finalEvent); + extracted = accumulate(extracted, finalEvent); + changeResponder(null); + } + + return extracted; + }, + GlobalResponderHandler: null, + injection: { + /** + * @param {{onChange: (ReactID, ReactID) => void} GlobalResponderHandler + * Object that handles any change in responder. Use this to inject + * integration with an existing touch handling system etc. + */ + injectGlobalResponderHandler: function (GlobalResponderHandler) { + ResponderEventPlugin.GlobalResponderHandler = GlobalResponderHandler; + } + } + }; + + // Keep in sync with ReactDOM.js, ReactTestUtils.js, and ReactTestUtilsAct.js: + + var _ReactDOM$__SECRET_IN = ReactDOM.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.Events, + getInstanceFromNode$1 = _ReactDOM$__SECRET_IN[0], + getNodeFromInstance$1 = _ReactDOM$__SECRET_IN[1], + getFiberCurrentPropsFromNode$1 = _ReactDOM$__SECRET_IN[2], + injectEventPluginsByName = _ReactDOM$__SECRET_IN[3]; + setComponentTree(getFiberCurrentPropsFromNode$1, getInstanceFromNode$1, getNodeFromInstance$1); + + var ReactDOMUnstableNativeDependencies = /*#__PURE__*/Object.freeze({ + __proto__: null, + ResponderEventPlugin: ResponderEventPlugin, + ResponderTouchHistoryStore: ResponderTouchHistoryStore, + injectEventPluginsByName: injectEventPluginsByName + }); + + var unstableNativeDependencies = ReactDOMUnstableNativeDependencies; + + return unstableNativeDependencies; + +}))); -- cgit v1.2.3-70-g09d2