File: /var/www/web.enelar.com.co/node_modules/zone.js/fesm2015/zone-mix.js
'use strict';
/**
* @license Angular v<unknown>
* (c) 2010-2024 Google LLC. https://angular.io/
* License: MIT
*/
const global = globalThis;
// __Zone_symbol_prefix global can be used to override the default zone
// symbol prefix with a custom one if needed.
function __symbol__(name) {
const symbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';
return symbolPrefix + name;
}
function initZone() {
const performance = global['performance'];
function mark(name) {
performance && performance['mark'] && performance['mark'](name);
}
function performanceMeasure(name, label) {
performance && performance['measure'] && performance['measure'](name, label);
}
mark('Zone');
class ZoneImpl {
// tslint:disable-next-line:require-internal-with-underscore
static { this.__symbol__ = __symbol__; }
static assertZonePatched() {
if (global['Promise'] !== patches['ZoneAwarePromise']) {
throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' +
'has been overwritten.\n' +
'Most likely cause is that a Promise polyfill has been loaded ' +
'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' +
'If you must load one, do so before loading zone.js.)');
}
}
static get root() {
let zone = ZoneImpl.current;
while (zone.parent) {
zone = zone.parent;
}
return zone;
}
static get current() {
return _currentZoneFrame.zone;
}
static get currentTask() {
return _currentTask;
}
// tslint:disable-next-line:require-internal-with-underscore
static __load_patch(name, fn, ignoreDuplicate = false) {
if (patches.hasOwnProperty(name)) {
// `checkDuplicate` option is defined from global variable
// so it works for all modules.
// `ignoreDuplicate` can work for the specified module
const checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;
if (!ignoreDuplicate && checkDuplicate) {
throw Error('Already loaded patch: ' + name);
}
}
else if (!global['__Zone_disable_' + name]) {
const perfName = 'Zone:' + name;
mark(perfName);
patches[name] = fn(global, ZoneImpl, _api);
performanceMeasure(perfName, perfName);
}
}
get parent() {
return this._parent;
}
get name() {
return this._name;
}
constructor(parent, zoneSpec) {
this._parent = parent;
this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '<root>';
this._properties = (zoneSpec && zoneSpec.properties) || {};
this._zoneDelegate = new _ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);
}
get(key) {
const zone = this.getZoneWith(key);
if (zone)
return zone._properties[key];
}
getZoneWith(key) {
let current = this;
while (current) {
if (current._properties.hasOwnProperty(key)) {
return current;
}
current = current._parent;
}
return null;
}
fork(zoneSpec) {
if (!zoneSpec)
throw new Error('ZoneSpec required!');
return this._zoneDelegate.fork(this, zoneSpec);
}
wrap(callback, source) {
if (typeof callback !== 'function') {
throw new Error('Expecting function got: ' + callback);
}
const _callback = this._zoneDelegate.intercept(this, callback, source);
const zone = this;
return function () {
return zone.runGuarded(_callback, this, arguments, source);
};
}
run(callback, applyThis, applyArgs, source) {
_currentZoneFrame = { parent: _currentZoneFrame, zone: this };
try {
return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
}
finally {
_currentZoneFrame = _currentZoneFrame.parent;
}
}
runGuarded(callback, applyThis = null, applyArgs, source) {
_currentZoneFrame = { parent: _currentZoneFrame, zone: this };
try {
try {
return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
}
catch (error) {
if (this._zoneDelegate.handleError(this, error)) {
throw error;
}
}
}
finally {
_currentZoneFrame = _currentZoneFrame.parent;
}
}
runTask(task, applyThis, applyArgs) {
if (task.zone != this) {
throw new Error('A task can only be run in the zone of creation! (Creation: ' +
(task.zone || NO_ZONE).name +
'; Execution: ' +
this.name +
')');
}
const zoneTask = task;
// https://github.com/angular/zone.js/issues/778, sometimes eventTask
// will run in notScheduled(canceled) state, we should not try to
// run such kind of task but just return
const { type, data: { isPeriodic = false, isRefreshable = false } = {} } = task;
if (task.state === notScheduled && (type === eventTask || type === macroTask)) {
return;
}
const reEntryGuard = task.state != running;
reEntryGuard && zoneTask._transitionTo(running, scheduled);
const previousTask = _currentTask;
_currentTask = zoneTask;
_currentZoneFrame = { parent: _currentZoneFrame, zone: this };
try {
if (type == macroTask && task.data && !isPeriodic && !isRefreshable) {
task.cancelFn = undefined;
}
try {
return this._zoneDelegate.invokeTask(this, zoneTask, applyThis, applyArgs);
}
catch (error) {
if (this._zoneDelegate.handleError(this, error)) {
throw error;
}
}
}
finally {
// if the task's state is notScheduled or unknown, then it has already been cancelled
// we should not reset the state to scheduled
const state = task.state;
if (state !== notScheduled && state !== unknown) {
if (type == eventTask || isPeriodic || (isRefreshable && state === scheduling)) {
reEntryGuard && zoneTask._transitionTo(scheduled, running, scheduling);
}
else {
const zoneDelegates = zoneTask._zoneDelegates;
this._updateTaskCount(zoneTask, -1);
reEntryGuard && zoneTask._transitionTo(notScheduled, running, notScheduled);
if (isRefreshable) {
zoneTask._zoneDelegates = zoneDelegates;
}
}
}
_currentZoneFrame = _currentZoneFrame.parent;
_currentTask = previousTask;
}
}
scheduleTask(task) {
if (task.zone && task.zone !== this) {
// check if the task was rescheduled, the newZone
// should not be the children of the original zone
let newZone = this;
while (newZone) {
if (newZone === task.zone) {
throw Error(`can not reschedule task to ${this.name} which is descendants of the original zone ${task.zone.name}`);
}
newZone = newZone.parent;
}
}
task._transitionTo(scheduling, notScheduled);
const zoneDelegates = [];
task._zoneDelegates = zoneDelegates;
task._zone = this;
try {
task = this._zoneDelegate.scheduleTask(this, task);
}
catch (err) {
// should set task's state to unknown when scheduleTask throw error
// because the err may from reschedule, so the fromState maybe notScheduled
task._transitionTo(unknown, scheduling, notScheduled);
// TODO: @JiaLiPassion, should we check the result from handleError?
this._zoneDelegate.handleError(this, err);
throw err;
}
if (task._zoneDelegates === zoneDelegates) {
// we have to check because internally the delegate can reschedule the task.
this._updateTaskCount(task, 1);
}
if (task.state == scheduling) {
task._transitionTo(scheduled, scheduling);
}
return task;
}
scheduleMicroTask(source, callback, data, customSchedule) {
return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));
}
scheduleMacroTask(source, callback, data, customSchedule, customCancel) {
return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));
}
scheduleEventTask(source, callback, data, customSchedule, customCancel) {
return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));
}
cancelTask(task) {
if (task.zone != this)
throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' +
(task.zone || NO_ZONE).name +
'; Execution: ' +
this.name +
')');
if (task.state !== scheduled && task.state !== running) {
return;
}
task._transitionTo(canceling, scheduled, running);
try {
this._zoneDelegate.cancelTask(this, task);
}
catch (err) {
// if error occurs when cancelTask, transit the state to unknown
task._transitionTo(unknown, canceling);
this._zoneDelegate.handleError(this, err);
throw err;
}
this._updateTaskCount(task, -1);
task._transitionTo(notScheduled, canceling);
task.runCount = -1;
return task;
}
_updateTaskCount(task, count) {
const zoneDelegates = task._zoneDelegates;
if (count == -1) {
task._zoneDelegates = null;
}
for (let i = 0; i < zoneDelegates.length; i++) {
zoneDelegates[i]._updateTaskCount(task.type, count);
}
}
}
const DELEGATE_ZS = {
name: '',
onHasTask: (delegate, _, target, hasTaskState) => delegate.hasTask(target, hasTaskState),
onScheduleTask: (delegate, _, target, task) => delegate.scheduleTask(target, task),
onInvokeTask: (delegate, _, target, task, applyThis, applyArgs) => delegate.invokeTask(target, task, applyThis, applyArgs),
onCancelTask: (delegate, _, target, task) => delegate.cancelTask(target, task),
};
class _ZoneDelegate {
get zone() {
return this._zone;
}
constructor(zone, parentDelegate, zoneSpec) {
this._taskCounts = {
'microTask': 0,
'macroTask': 0,
'eventTask': 0,
};
this._zone = zone;
this._parentDelegate = parentDelegate;
this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);
this._forkCurrZone =
zoneSpec && (zoneSpec.onFork ? this._zone : parentDelegate._forkCurrZone);
this._interceptZS =
zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);
this._interceptDlgt =
zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);
this._interceptCurrZone =
zoneSpec && (zoneSpec.onIntercept ? this._zone : parentDelegate._interceptCurrZone);
this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);
this._invokeDlgt =
zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);
this._invokeCurrZone =
zoneSpec && (zoneSpec.onInvoke ? this._zone : parentDelegate._invokeCurrZone);
this._handleErrorZS =
zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);
this._handleErrorDlgt =
zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);
this._handleErrorCurrZone =
zoneSpec && (zoneSpec.onHandleError ? this._zone : parentDelegate._handleErrorCurrZone);
this._scheduleTaskZS =
zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);
this._scheduleTaskDlgt =
zoneSpec && (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);
this._scheduleTaskCurrZone =
zoneSpec && (zoneSpec.onScheduleTask ? this._zone : parentDelegate._scheduleTaskCurrZone);
this._invokeTaskZS =
zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);
this._invokeTaskDlgt =
zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);
this._invokeTaskCurrZone =
zoneSpec && (zoneSpec.onInvokeTask ? this._zone : parentDelegate._invokeTaskCurrZone);
this._cancelTaskZS =
zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);
this._cancelTaskDlgt =
zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);
this._cancelTaskCurrZone =
zoneSpec && (zoneSpec.onCancelTask ? this._zone : parentDelegate._cancelTaskCurrZone);
this._hasTaskZS = null;
this._hasTaskDlgt = null;
this._hasTaskDlgtOwner = null;
this._hasTaskCurrZone = null;
const zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;
const parentHasTask = parentDelegate && parentDelegate._hasTaskZS;
if (zoneSpecHasTask || parentHasTask) {
// If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such
// a case all task related interceptors must go through this ZD. We can't short circuit it.
this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;
this._hasTaskDlgt = parentDelegate;
this._hasTaskDlgtOwner = this;
this._hasTaskCurrZone = this._zone;
if (!zoneSpec.onScheduleTask) {
this._scheduleTaskZS = DELEGATE_ZS;
this._scheduleTaskDlgt = parentDelegate;
this._scheduleTaskCurrZone = this._zone;
}
if (!zoneSpec.onInvokeTask) {
this._invokeTaskZS = DELEGATE_ZS;
this._invokeTaskDlgt = parentDelegate;
this._invokeTaskCurrZone = this._zone;
}
if (!zoneSpec.onCancelTask) {
this._cancelTaskZS = DELEGATE_ZS;
this._cancelTaskDlgt = parentDelegate;
this._cancelTaskCurrZone = this._zone;
}
}
}
fork(targetZone, zoneSpec) {
return this._forkZS
? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec)
: new ZoneImpl(targetZone, zoneSpec);
}
intercept(targetZone, callback, source) {
return this._interceptZS
? this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source)
: callback;
}
invoke(targetZone, callback, applyThis, applyArgs, source) {
return this._invokeZS
? this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source)
: callback.apply(applyThis, applyArgs);
}
handleError(targetZone, error) {
return this._handleErrorZS
? this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error)
: true;
}
scheduleTask(targetZone, task) {
let returnTask = task;
if (this._scheduleTaskZS) {
if (this._hasTaskZS) {
returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);
}
returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);
if (!returnTask)
returnTask = task;
}
else {
if (task.scheduleFn) {
task.scheduleFn(task);
}
else if (task.type == microTask) {
scheduleMicroTask(task);
}
else {
throw new Error('Task is missing scheduleFn.');
}
}
return returnTask;
}
invokeTask(targetZone, task, applyThis, applyArgs) {
return this._invokeTaskZS
? this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs)
: task.callback.apply(applyThis, applyArgs);
}
cancelTask(targetZone, task) {
let value;
if (this._cancelTaskZS) {
value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);
}
else {
if (!task.cancelFn) {
throw Error('Task is not cancelable');
}
value = task.cancelFn(task);
}
return value;
}
hasTask(targetZone, isEmpty) {
// hasTask should not throw error so other ZoneDelegate
// can still trigger hasTask callback
try {
this._hasTaskZS &&
this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);
}
catch (err) {
this.handleError(targetZone, err);
}
}
// tslint:disable-next-line:require-internal-with-underscore
_updateTaskCount(type, count) {
const counts = this._taskCounts;
const prev = counts[type];
const next = (counts[type] = prev + count);
if (next < 0) {
throw new Error('More tasks executed then were scheduled.');
}
if (prev == 0 || next == 0) {
const isEmpty = {
microTask: counts['microTask'] > 0,
macroTask: counts['macroTask'] > 0,
eventTask: counts['eventTask'] > 0,
change: type,
};
this.hasTask(this._zone, isEmpty);
}
}
}
class ZoneTask {
constructor(type, source, callback, options, scheduleFn, cancelFn) {
// tslint:disable-next-line:require-internal-with-underscore
this._zone = null;
this.runCount = 0;
// tslint:disable-next-line:require-internal-with-underscore
this._zoneDelegates = null;
// tslint:disable-next-line:require-internal-with-underscore
this._state = 'notScheduled';
this.type = type;
this.source = source;
this.data = options;
this.scheduleFn = scheduleFn;
this.cancelFn = cancelFn;
if (!callback) {
throw new Error('callback is not defined');
}
this.callback = callback;
const self = this;
// TODO: @JiaLiPassion options should have interface
if (type === eventTask && options && options.useG) {
this.invoke = ZoneTask.invokeTask;
}
else {
this.invoke = function () {
return ZoneTask.invokeTask.call(global, self, this, arguments);
};
}
}
static invokeTask(task, target, args) {
if (!task) {
task = this;
}
_numberOfNestedTaskFrames++;
try {
task.runCount++;
return task.zone.runTask(task, target, args);
}
finally {
if (_numberOfNestedTaskFrames == 1) {
drainMicroTaskQueue();
}
_numberOfNestedTaskFrames--;
}
}
get zone() {
return this._zone;
}
get state() {
return this._state;
}
cancelScheduleRequest() {
this._transitionTo(notScheduled, scheduling);
}
// tslint:disable-next-line:require-internal-with-underscore
_transitionTo(toState, fromState1, fromState2) {
if (this._state === fromState1 || this._state === fromState2) {
this._state = toState;
if (toState == notScheduled) {
this._zoneDelegates = null;
}
}
else {
throw new Error(`${this.type} '${this.source}': can not transition to '${toState}', expecting state '${fromState1}'${fromState2 ? " or '" + fromState2 + "'" : ''}, was '${this._state}'.`);
}
}
toString() {
if (this.data && typeof this.data.handleId !== 'undefined') {
return this.data.handleId.toString();
}
else {
return Object.prototype.toString.call(this);
}
}
// add toJSON method to prevent cyclic error when
// call JSON.stringify(zoneTask)
toJSON() {
return {
type: this.type,
state: this.state,
source: this.source,
zone: this.zone.name,
runCount: this.runCount,
};
}
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
/// MICROTASK QUEUE
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
const symbolSetTimeout = __symbol__('setTimeout');
const symbolPromise = __symbol__('Promise');
const symbolThen = __symbol__('then');
let _microTaskQueue = [];
let _isDrainingMicrotaskQueue = false;
let nativeMicroTaskQueuePromise;
function nativeScheduleMicroTask(func) {
if (!nativeMicroTaskQueuePromise) {
if (global[symbolPromise]) {
nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);
}
}
if (nativeMicroTaskQueuePromise) {
let nativeThen = nativeMicroTaskQueuePromise[symbolThen];
if (!nativeThen) {
// native Promise is not patchable, we need to use `then` directly
// issue 1078
nativeThen = nativeMicroTaskQueuePromise['then'];
}
nativeThen.call(nativeMicroTaskQueuePromise, func);
}
else {
global[symbolSetTimeout](func, 0);
}
}
function scheduleMicroTask(task) {
// if we are not running in any task, and there has not been anything scheduled
// we must bootstrap the initial task creation by manually scheduling the drain
if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {
// We are not running in Task, so we need to kickstart the microtask queue.
nativeScheduleMicroTask(drainMicroTaskQueue);
}
task && _microTaskQueue.push(task);
}
function drainMicroTaskQueue() {
if (!_isDrainingMicrotaskQueue) {
_isDrainingMicrotaskQueue = true;
while (_microTaskQueue.length) {
const queue = _microTaskQueue;
_microTaskQueue = [];
for (let i = 0; i < queue.length; i++) {
const task = queue[i];
try {
task.zone.runTask(task, null, null);
}
catch (error) {
_api.onUnhandledError(error);
}
}
}
_api.microtaskDrainDone();
_isDrainingMicrotaskQueue = false;
}
}
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
/// BOOTSTRAP
//////////////////////////////////////////////////////
//////////////////////////////////////////////////////
const NO_ZONE = { name: 'NO ZONE' };
const notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling', unknown = 'unknown';
const microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';
const patches = {};
const _api = {
symbol: __symbol__,
currentZoneFrame: () => _currentZoneFrame,
onUnhandledError: noop,
microtaskDrainDone: noop,
scheduleMicroTask: scheduleMicroTask,
showUncaughtError: () => !ZoneImpl[__symbol__('ignoreConsoleErrorUncaughtError')],
patchEventTarget: () => [],
patchOnProperties: noop,
patchMethod: () => noop,
bindArguments: () => [],
patchThen: () => noop,
patchMacroTask: () => noop,
patchEventPrototype: () => noop,
isIEOrEdge: () => false,
getGlobalObjects: () => undefined,
ObjectDefineProperty: () => noop,
ObjectGetOwnPropertyDescriptor: () => undefined,
ObjectCreate: () => undefined,
ArraySlice: () => [],
patchClass: () => noop,
wrapWithCurrentZone: () => noop,
filterProperties: () => [],
attachOriginToPatched: () => noop,
_redefineProperty: () => noop,
patchCallbacks: () => noop,
nativeScheduleMicroTask: nativeScheduleMicroTask,
};
let _currentZoneFrame = { parent: null, zone: new ZoneImpl(null, null) };
let _currentTask = null;
let _numberOfNestedTaskFrames = 0;
function noop() { }
performanceMeasure('Zone', 'Zone');
return ZoneImpl;
}
/**
* Suppress closure compiler errors about unknown 'Zone' variable
* @fileoverview
* @suppress {undefinedVars,globalThis,missingRequire}
*/
// issue #989, to reduce bundle size, use short name
/** Object.getOwnPropertyDescriptor */
const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
/** Object.defineProperty */
const ObjectDefineProperty = Object.defineProperty;
/** Object.getPrototypeOf */
const ObjectGetPrototypeOf = Object.getPrototypeOf;
/** Object.create */
const ObjectCreate = Object.create;
/** Array.prototype.slice */
const ArraySlice = Array.prototype.slice;
/** addEventListener string const */
const ADD_EVENT_LISTENER_STR = 'addEventListener';
/** removeEventListener string const */
const REMOVE_EVENT_LISTENER_STR = 'removeEventListener';
/** zoneSymbol addEventListener */
const ZONE_SYMBOL_ADD_EVENT_LISTENER = __symbol__(ADD_EVENT_LISTENER_STR);
/** zoneSymbol removeEventListener */
const ZONE_SYMBOL_REMOVE_EVENT_LISTENER = __symbol__(REMOVE_EVENT_LISTENER_STR);
/** true string const */
const TRUE_STR = 'true';
/** false string const */
const FALSE_STR = 'false';
/** Zone symbol prefix string const. */
const ZONE_SYMBOL_PREFIX = __symbol__('');
function wrapWithCurrentZone(callback, source) {
return Zone.current.wrap(callback, source);
}
function scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {
return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);
}
const zoneSymbol = __symbol__;
const isWindowExists = typeof window !== 'undefined';
const internalWindow = isWindowExists ? window : undefined;
const _global = (isWindowExists && internalWindow) || globalThis;
const REMOVE_ATTRIBUTE = 'removeAttribute';
function bindArguments(args, source) {
for (let i = args.length - 1; i >= 0; i--) {
if (typeof args[i] === 'function') {
args[i] = wrapWithCurrentZone(args[i], source + '_' + i);
}
}
return args;
}
function patchPrototype(prototype, fnNames) {
const source = prototype.constructor['name'];
for (let i = 0; i < fnNames.length; i++) {
const name = fnNames[i];
const delegate = prototype[name];
if (delegate) {
const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name);
if (!isPropertyWritable(prototypeDesc)) {
continue;
}
prototype[name] = ((delegate) => {
const patched = function () {
return delegate.apply(this, bindArguments(arguments, source + '.' + name));
};
attachOriginToPatched(patched, delegate);
return patched;
})(delegate);
}
}
}
function isPropertyWritable(propertyDesc) {
if (!propertyDesc) {
return true;
}
if (propertyDesc.writable === false) {
return false;
}
return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');
}
const isWebWorker = typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope;
// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
// this code.
const isNode = !('nw' in _global) &&
typeof _global.process !== 'undefined' &&
_global.process.toString() === '[object process]';
const isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);
// we are in electron of nw, so we are both browser and nodejs
// Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
// this code.
const isMix = typeof _global.process !== 'undefined' &&
_global.process.toString() === '[object process]' &&
!isWebWorker &&
!!(isWindowExists && internalWindow['HTMLElement']);
const zoneSymbolEventNames$1 = {};
const enableBeforeunloadSymbol = zoneSymbol('enable_beforeunload');
const wrapFn = function (event) {
// https://github.com/angular/zone.js/issues/911, in IE, sometimes
// event will be undefined, so we need to use window.event
event = event || _global.event;
if (!event) {
return;
}
let eventNameSymbol = zoneSymbolEventNames$1[event.type];
if (!eventNameSymbol) {
eventNameSymbol = zoneSymbolEventNames$1[event.type] = zoneSymbol('ON_PROPERTY' + event.type);
}
const target = this || event.target || _global;
const listener = target[eventNameSymbol];
let result;
if (isBrowser && target === internalWindow && event.type === 'error') {
// window.onerror have different signature
// https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror
// and onerror callback will prevent default when callback return true
const errorEvent = event;
result =
listener &&
listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);
if (result === true) {
event.preventDefault();
}
}
else {
result = listener && listener.apply(this, arguments);
if (
// https://github.com/angular/angular/issues/47579
// https://www.w3.org/TR/2011/WD-html5-20110525/history.html#beforeunloadevent
// This is the only specific case we should check for. The spec defines that the
// `returnValue` attribute represents the message to show the user. When the event
// is created, this attribute must be set to the empty string.
event.type === 'beforeunload' &&
// To prevent any breaking changes resulting from this change, given that
// it was already causing a significant number of failures in G3, we have hidden
// that behavior behind a global configuration flag. Consumers can enable this
// flag explicitly if they want the `beforeunload` event to be handled as defined
// in the specification.
_global[enableBeforeunloadSymbol] &&
// The IDL event definition is `attribute DOMString returnValue`, so we check whether
// `typeof result` is a string.
typeof result === 'string') {
event.returnValue = result;
}
else if (result != undefined && !result) {
event.preventDefault();
}
}
return result;
};
function patchProperty(obj, prop, prototype) {
let desc = ObjectGetOwnPropertyDescriptor(obj, prop);
if (!desc && prototype) {
// when patch window object, use prototype to check prop exist or not
const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);
if (prototypeDesc) {
desc = { enumerable: true, configurable: true };
}
}
// if the descriptor not exists or is not configurable
// just return
if (!desc || !desc.configurable) {
return;
}
const onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');
if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {
return;
}
// A property descriptor cannot have getter/setter and be writable
// deleting the writable and value properties avoids this error:
//
// TypeError: property descriptors must not specify a value or be writable when a
// getter or setter has been specified
delete desc.writable;
delete desc.value;
const originalDescGet = desc.get;
const originalDescSet = desc.set;
// slice(2) cuz 'onclick' -> 'click', etc
const eventName = prop.slice(2);
let eventNameSymbol = zoneSymbolEventNames$1[eventName];
if (!eventNameSymbol) {
eventNameSymbol = zoneSymbolEventNames$1[eventName] = zoneSymbol('ON_PROPERTY' + eventName);
}
desc.set = function (newValue) {
// in some of windows's onproperty callback, this is undefined
// so we need to check it
let target = this;
if (!target && obj === _global) {
target = _global;
}
if (!target) {
return;
}
const previousValue = target[eventNameSymbol];
if (typeof previousValue === 'function') {
target.removeEventListener(eventName, wrapFn);
}
// issue #978, when onload handler was added before loading zone.js
// we should remove it with originalDescSet
originalDescSet && originalDescSet.call(target, null);
target[eventNameSymbol] = newValue;
if (typeof newValue === 'function') {
target.addEventListener(eventName, wrapFn, false);
}
};
// The getter would return undefined for unassigned properties but the default value of an
// unassigned property is null
desc.get = function () {
// in some of windows's onproperty callback, this is undefined
// so we need to check it
let target = this;
if (!target && obj === _global) {
target = _global;
}
if (!target) {
return null;
}
const listener = target[eventNameSymbol];
if (listener) {
return listener;
}
else if (originalDescGet) {
// result will be null when use inline event attribute,
// such as <button onclick="func();">OK</button>
// because the onclick function is internal raw uncompiled handler
// the onclick will be evaluated when first time event was triggered or
// the property is accessed, https://github.com/angular/zone.js/issues/525
// so we should use original native get to retrieve the handler
let value = originalDescGet.call(this);
if (value) {
desc.set.call(this, value);
if (typeof target[REMOVE_ATTRIBUTE] === 'function') {
target.removeAttribute(prop);
}
return value;
}
}
return null;
};
ObjectDefineProperty(obj, prop, desc);
obj[onPropPatchedSymbol] = true;
}
function patchOnProperties(obj, properties, prototype) {
if (properties) {
for (let i = 0; i < properties.length; i++) {
patchProperty(obj, 'on' + properties[i], prototype);
}
}
else {
const onProperties = [];
for (const prop in obj) {
if (prop.slice(0, 2) == 'on') {
onProperties.push(prop);
}
}
for (let j = 0; j < onProperties.length; j++) {
patchProperty(obj, onProperties[j], prototype);
}
}
}
const originalInstanceKey = zoneSymbol('originalInstance');
// wrap some native API on `window`
function patchClass(className) {
const OriginalClass = _global[className];
if (!OriginalClass)
return;
// keep original class in global
_global[zoneSymbol(className)] = OriginalClass;
_global[className] = function () {
const a = bindArguments(arguments, className);
switch (a.length) {
case 0:
this[originalInstanceKey] = new OriginalClass();
break;
case 1:
this[originalInstanceKey] = new OriginalClass(a[0]);
break;
case 2:
this[originalInstanceKey] = new OriginalClass(a[0], a[1]);
break;
case 3:
this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);
break;
case 4:
this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);
break;
default:
throw new Error('Arg list too long.');
}
};
// attach original delegate to patched function
attachOriginToPatched(_global[className], OriginalClass);
const instance = new OriginalClass(function () { });
let prop;
for (prop in instance) {
// https://bugs.webkit.org/show_bug.cgi?id=44721
if (className === 'XMLHttpRequest' && prop === 'responseBlob')
continue;
(function (prop) {
if (typeof instance[prop] === 'function') {
_global[className].prototype[prop] = function () {
return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);
};
}
else {
ObjectDefineProperty(_global[className].prototype, prop, {
set: function (fn) {
if (typeof fn === 'function') {
this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop);
// keep callback in wrapped function so we can
// use it in Function.prototype.toString to return
// the native one.
attachOriginToPatched(this[originalInstanceKey][prop], fn);
}
else {
this[originalInstanceKey][prop] = fn;
}
},
get: function () {
return this[originalInstanceKey][prop];
},
});
}
})(prop);
}
for (prop in OriginalClass) {
if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {
_global[className][prop] = OriginalClass[prop];
}
}
}
function copySymbolProperties(src, dest) {
if (typeof Object.getOwnPropertySymbols !== 'function') {
return;
}
const symbols = Object.getOwnPropertySymbols(src);
symbols.forEach((symbol) => {
const desc = Object.getOwnPropertyDescriptor(src, symbol);
Object.defineProperty(dest, symbol, {
get: function () {
return src[symbol];
},
set: function (value) {
if (desc && (!desc.writable || typeof desc.set !== 'function')) {
// if src[symbol] is not writable or not have a setter, just return
return;
}
src[symbol] = value;
},
enumerable: desc ? desc.enumerable : true,
configurable: desc ? desc.configurable : true,
});
});
}
let shouldCopySymbolProperties = false;
function setShouldCopySymbolProperties(flag) {
shouldCopySymbolProperties = flag;
}
function patchMethod(target, name, patchFn) {
let proto = target;
while (proto && !proto.hasOwnProperty(name)) {
proto = ObjectGetPrototypeOf(proto);
}
if (!proto && target[name]) {
// somehow we did not find it, but we can see it. This happens on IE for Window properties.
proto = target;
}
const delegateName = zoneSymbol(name);
let delegate = null;
if (proto && (!(delegate = proto[delegateName]) || !proto.hasOwnProperty(delegateName))) {
delegate = proto[delegateName] = proto[name];
// check whether proto[name] is writable
// some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob
const desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);
if (isPropertyWritable(desc)) {
const patchDelegate = patchFn(delegate, delegateName, name);
proto[name] = function () {
return patchDelegate(this, arguments);
};
attachOriginToPatched(proto[name], delegate);
if (shouldCopySymbolProperties) {
copySymbolProperties(delegate, proto[name]);
}
}
}
return delegate;
}
// TODO: @JiaLiPassion, support cancel task later if necessary
function patchMacroTask(obj, funcName, metaCreator) {
let setNative = null;
function scheduleTask(task) {
const data = task.data;
data.args[data.cbIdx] = function () {
task.invoke.apply(this, arguments);
};
setNative.apply(data.target, data.args);
return task;
}
setNative = patchMethod(obj, funcName, (delegate) => function (self, args) {
const meta = metaCreator(self, args);
if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);
}
else {
// cause an error by calling it directly.
return delegate.apply(self, args);
}
});
}
function patchMicroTask(obj, funcName, metaCreator) {
let setNative = null;
function scheduleTask(task) {
const data = task.data;
data.args[data.cbIdx] = function () {
task.invoke.apply(this, arguments);
};
setNative.apply(data.target, data.args);
return task;
}
setNative = patchMethod(obj, funcName, (delegate) => function (self, args) {
const meta = metaCreator(self, args);
if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
return Zone.current.scheduleMicroTask(meta.name, args[meta.cbIdx], meta, scheduleTask);
}
else {
// cause an error by calling it directly.
return delegate.apply(self, args);
}
});
}
function attachOriginToPatched(patched, original) {
patched[zoneSymbol('OriginalDelegate')] = original;
}
let isDetectedIEOrEdge = false;
let ieOrEdge = false;
function isIE() {
try {
const ua = internalWindow.navigator.userAgent;
if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1) {
return true;
}
}
catch (error) { }
return false;
}
function isIEOrEdge() {
if (isDetectedIEOrEdge) {
return ieOrEdge;
}
isDetectedIEOrEdge = true;
try {
const ua = internalWindow.navigator.userAgent;
if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {
ieOrEdge = true;
}
}
catch (error) { }
return ieOrEdge;
}
function isFunction(value) {
return typeof value === 'function';
}
function isNumber(value) {
return typeof value === 'number';
}
/**
* @fileoverview
* @suppress {missingRequire}
*/
// Note that passive event listeners are now supported by most modern browsers,
// including Chrome, Firefox, Safari, and Edge. There's a pending change that
// would remove support for legacy browsers by zone.js. Removing `passiveSupported`
// from the codebase will reduce the final code size for existing apps that still use zone.js.
let passiveSupported = false;
if (typeof window !== 'undefined') {
try {
const options = Object.defineProperty({}, 'passive', {
get: function () {
passiveSupported = true;
},
});
// Note: We pass the `options` object as the event handler too. This is not compatible with the
// signature of `addEventListener` or `removeEventListener` but enables us to remove the handler
// without an actual handler.
window.addEventListener('test', options, options);
window.removeEventListener('test', options, options);
}
catch (err) {
passiveSupported = false;
}
}
// an identifier to tell ZoneTask do not create a new invoke closure
const OPTIMIZED_ZONE_EVENT_TASK_DATA = {
useG: true,
};
const zoneSymbolEventNames = {};
const globalSources = {};
const EVENT_NAME_SYMBOL_REGX = new RegExp('^' + ZONE_SYMBOL_PREFIX + '(\\w+)(true|false)$');
const IMMEDIATE_PROPAGATION_SYMBOL = zoneSymbol('propagationStopped');
function prepareEventNames(eventName, eventNameToString) {
const falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;
const trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;
const symbol = ZONE_SYMBOL_PREFIX + falseEventName;
const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
zoneSymbolEventNames[eventName] = {};
zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
}
function patchEventTarget(_global, api, apis, patchOptions) {
const ADD_EVENT_LISTENER = (patchOptions && patchOptions.add) || ADD_EVENT_LISTENER_STR;
const REMOVE_EVENT_LISTENER = (patchOptions && patchOptions.rm) || REMOVE_EVENT_LISTENER_STR;
const LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.listeners) || 'eventListeners';
const REMOVE_ALL_LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.rmAll) || 'removeAllListeners';
const zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);
const ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';
const PREPEND_EVENT_LISTENER = 'prependListener';
const PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';
const invokeTask = function (task, target, event) {
// for better performance, check isRemoved which is set
// by removeEventListener
if (task.isRemoved) {
return;
}
const delegate = task.callback;
if (typeof delegate === 'object' && delegate.handleEvent) {
// create the bind version of handleEvent when invoke
task.callback = (event) => delegate.handleEvent(event);
task.originalDelegate = delegate;
}
// invoke static task.invoke
// need to try/catch error here, otherwise, the error in one event listener
// will break the executions of the other event listeners. Also error will
// not remove the event listener when `once` options is true.
let error;
try {
task.invoke(task, target, [event]);
}
catch (err) {
error = err;
}
const options = task.options;
if (options && typeof options === 'object' && options.once) {
// if options.once is true, after invoke once remove listener here
// only browser need to do this, nodejs eventEmitter will cal removeListener
// inside EventEmitter.once
const delegate = task.originalDelegate ? task.originalDelegate : task.callback;
target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate, options);
}
return error;
};
function globalCallback(context, event, isCapture) {
// https://github.com/angular/zone.js/issues/911, in IE, sometimes
// event will be undefined, so we need to use window.event
event = event || _global.event;
if (!event) {
return;
}
// event.target is needed for Samsung TV and SourceBuffer
// || global is needed https://github.com/angular/zone.js/issues/190
const target = context || event.target || _global;
const tasks = target[zoneSymbolEventNames[event.type][isCapture ? TRUE_STR : FALSE_STR]];
if (tasks) {
const errors = [];
// invoke all tasks which attached to current target with given event.type and capture = false
// for performance concern, if task.length === 1, just invoke
if (tasks.length === 1) {
const err = invokeTask(tasks[0], target, event);
err && errors.push(err);
}
else {
// https://github.com/angular/zone.js/issues/836
// copy the tasks array before invoke, to avoid
// the callback will remove itself or other listener
const copyTasks = tasks.slice();
for (let i = 0; i < copyTasks.length; i++) {
if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {
break;
}
const err = invokeTask(copyTasks[i], target, event);
err && errors.push(err);
}
}
// Since there is only one error, we don't need to schedule microTask
// to throw the error.
if (errors.length === 1) {
throw errors[0];
}
else {
for (let i = 0; i < errors.length; i++) {
const err = errors[i];
api.nativeScheduleMicroTask(() => {
throw err;
});
}
}
}
}
// global shared zoneAwareCallback to handle all event callback with capture = false
const globalZoneAwareCallback = function (event) {
return globalCallback(this, event, false);
};
// global shared zoneAwareCallback to handle all event callback with capture = true
const globalZoneAwareCaptureCallback = function (event) {
return globalCallback(this, event, true);
};
function patchEventTargetMethods(obj, patchOptions) {
if (!obj) {
return false;
}
let useGlobalCallback = true;
if (patchOptions && patchOptions.useG !== undefined) {
useGlobalCallback = patchOptions.useG;
}
const validateHandler = patchOptions && patchOptions.vh;
let checkDuplicate = true;
if (patchOptions && patchOptions.chkDup !== undefined) {
checkDuplicate = patchOptions.chkDup;
}
let returnTarget = false;
if (patchOptions && patchOptions.rt !== undefined) {
returnTarget = patchOptions.rt;
}
let proto = obj;
while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {
proto = ObjectGetPrototypeOf(proto);
}
if (!proto && obj[ADD_EVENT_LISTENER]) {
// somehow we did not find it, but we can see it. This happens on IE for Window properties.
proto = obj;
}
if (!proto) {
return false;
}
if (proto[zoneSymbolAddEventListener]) {
return false;
}
const eventNameToString = patchOptions && patchOptions.eventNameToString;
// We use a shared global `taskData` to pass data for `scheduleEventTask`,
// eliminating the need to create a new object solely for passing data.
// WARNING: This object has a static lifetime, meaning it is not created
// each time `addEventListener` is called. It is instantiated only once
// and captured by reference inside the `addEventListener` and
// `removeEventListener` functions. Do not add any new properties to this
// object, as doing so would necessitate maintaining the information
// between `addEventListener` calls.
const taskData = {};
const nativeAddEventListener = (proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER]);
const nativeRemoveEventListener = (proto[zoneSymbol(REMOVE_EVENT_LISTENER)] =
proto[REMOVE_EVENT_LISTENER]);
const nativeListeners = (proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] =
proto[LISTENERS_EVENT_LISTENER]);
const nativeRemoveAllListeners = (proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] =
proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER]);
let nativePrependEventListener;
if (patchOptions && patchOptions.prepend) {
nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] =
proto[patchOptions.prepend];
}
/**
* This util function will build an option object with passive option
* to handle all possible input from the user.
*/
function buildEventListenerOptions(options, passive) {
if (!passiveSupported && typeof options === 'object' && options) {
// doesn't support passive but user want to pass an object as options.
// this will not work on some old browser, so we just pass a boolean
// as useCapture parameter
return !!options.capture;
}
if (!passiveSupported || !passive) {
return options;
}
if (typeof options === 'boolean') {
return { capture: options, passive: true };
}
if (!options) {
return { passive: true };
}
if (typeof options === 'object' && options.passive !== false) {
return { ...options, passive: true };
}
return options;
}
const customScheduleGlobal = function (task) {
// if there is already a task for the eventName + capture,
// just return, because we use the shared globalZoneAwareCallback here.
if (taskData.isExisting) {
return;
}
return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);
};
/**
* In the context of events and listeners, this function will be
* called at the end by `cancelTask`, which, in turn, calls `task.cancelFn`.
* Cancelling a task is primarily used to remove event listeners from
* the task target.
*/
const customCancelGlobal = function (task) {
// if task is not marked as isRemoved, this call is directly
// from Zone.prototype.cancelTask, we should remove the task
// from tasksList of target first
if (!task.isRemoved) {
const symbolEventNames = zoneSymbolEventNames[task.eventName];
let symbolEventName;
if (symbolEventNames) {
symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];
}
const existingTasks = symbolEventName && task.target[symbolEventName];
if (existingTasks) {
for (let i = 0; i < existingTasks.length; i++) {
const existingTask = existingTasks[i];
if (existingTask === task) {
existingTasks.splice(i, 1);
// set isRemoved to data for faster invokeTask check
task.isRemoved = true;
if (task.removeAbortListener) {
task.removeAbortListener();
task.removeAbortListener = null;
}
if (existingTasks.length === 0) {
// all tasks for the eventName + capture have gone,
// remove globalZoneAwareCallback and remove the task cache from target
task.allRemoved = true;
task.target[symbolEventName] = null;
}
break;
}
}
}
}
// if all tasks for the eventName + capture have gone,
// we will really remove the global event callback,
// if not, return
if (!task.allRemoved) {
return;
}
return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);
};
const customScheduleNonGlobal = function (task) {
return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
};
const customSchedulePrepend = function (task) {
return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
};
const customCancelNonGlobal = function (task) {
return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);
};
const customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;
const customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;
const compareTaskCallbackVsDelegate = function (task, delegate) {
const typeOfDelegate = typeof delegate;
return ((typeOfDelegate === 'function' && task.callback === delegate) ||
(typeOfDelegate === 'object' && task.originalDelegate === delegate));
};
const compare = patchOptions && patchOptions.diff ? patchOptions.diff : compareTaskCallbackVsDelegate;
const unpatchedEvents = Zone[zoneSymbol('UNPATCHED_EVENTS')];
const passiveEvents = _global[zoneSymbol('PASSIVE_EVENTS')];
function copyEventListenerOptions(options) {
if (typeof options === 'object' && options !== null) {
// We need to destructure the target `options` object since it may
// be frozen or sealed (possibly provided implicitly by a third-party
// library), or its properties may be readonly.
const newOptions = { ...options };
// The `signal` option was recently introduced, which caused regressions in
// third-party scenarios where `AbortController` was directly provided to
// `addEventListener` as options. For instance, in cases like
// `document.addEventListener('keydown', callback, abortControllerInstance)`,
// which is valid because `AbortController` includes a `signal` getter, spreading
// `{...options}` wouldn't copy the `signal`. Additionally, using `Object.create`
// isn't feasible since `AbortController` is a built-in object type, and attempting
// to create a new object directly with it as the prototype might result in
// unexpected behavior.
if (options.signal) {
newOptions.signal = options.signal;
}
return newOptions;
}
return options;
}
const makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget = false, prepend = false) {
return function () {
const target = this || _global;
let eventName = arguments[0];
if (patchOptions && patchOptions.transferEventName) {
eventName = patchOptions.transferEventName(eventName);
}
let delegate = arguments[1];
if (!delegate) {
return nativeListener.apply(this, arguments);
}
if (isNode && eventName === 'uncaughtException') {
// don't patch uncaughtException of nodejs to prevent endless loop
return nativeListener.apply(this, arguments);
}
// don't create the bind delegate function for handleEvent
// case here to improve addEventListener performance
// we will create the bind delegate when invoke
let isHandleEvent = false;
if (typeof delegate !== 'function') {
if (!delegate.handleEvent) {
return nativeListener.apply(this, arguments);
}
isHandleEvent = true;
}
if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {
return;
}
const passive = passiveSupported && !!passiveEvents && passiveEvents.indexOf(eventName) !== -1;
const options = copyEventListenerOptions(buildEventListenerOptions(arguments[2], passive));
const signal = options?.signal;
if (signal?.aborted) {
// the signal is an aborted one, just return without attaching the event listener.
return;
}
if (unpatchedEvents) {
// check unpatched list
for (let i = 0; i < unpatchedEvents.length; i++) {
if (eventName === unpatchedEvents[i]) {
if (passive) {
return nativeListener.call(target, eventName, delegate, options);
}
else {
return nativeListener.apply(this, arguments);
}
}
}
}
const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
const once = options && typeof options === 'object' ? options.once : false;
const zone = Zone.current;
let symbolEventNames = zoneSymbolEventNames[eventName];
if (!symbolEventNames) {
prepareEventNames(eventName, eventNameToString);
symbolEventNames = zoneSymbolEventNames[eventName];
}
const symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
let existingTasks = target[symbolEventName];
let isExisting = false;
if (existingTasks) {
// already have task registered
isExisting = true;
if (checkDuplicate) {
for (let i = 0; i < existingTasks.length; i++) {
if (compare(existingTasks[i], delegate)) {
// same callback, same capture, same event name, just return
return;
}
}
}
}
else {
existingTasks = target[symbolEventName] = [];
}
let source;
const constructorName = target.constructor['name'];
const targetSource = globalSources[constructorName];
if (targetSource) {
source = targetSource[eventName];
}
if (!source) {
source =
constructorName +
addSource +
(eventNameToString ? eventNameToString(eventName) : eventName);
}
// In the code below, `options` should no longer be reassigned; instead, it
// should only be mutated. This is because we pass that object to the native
// `addEventListener`.
// It's generally recommended to use the same object reference for options.
// This ensures consistency and avoids potential issues.
taskData.options = options;
if (once) {
// When using `addEventListener` with the `once` option, we don't pass
// the `once` option directly to the native `addEventListener` method.
// Instead, we keep the `once` setting and handle it ourselves.
taskData.options.once = false;
}
taskData.target = target;
taskData.capture = capture;
taskData.eventName = eventName;
taskData.isExisting = isExisting;
const data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined;
// keep taskData into data to allow onScheduleEventTask to access the task information
if (data) {
data.taskData = taskData;
}
if (signal) {
// When using `addEventListener` with the `signal` option, we don't pass
// the `signal` option directly to the native `addEventListener` method.
// Instead, we keep the `signal` setting and handle it ourselves.
taskData.options.signal = undefined;
}
// The `scheduleEventTask` function will ultimately call `customScheduleGlobal`,
// which in turn calls the native `addEventListener`. This is why `taskData.options`
// is updated before scheduling the task, as `customScheduleGlobal` uses
// `taskData.options` to pass it to the native `addEventListener`.
const task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);
if (signal) {
// after task is scheduled, we need to store the signal back to task.options
taskData.options.signal = signal;
// Wrapping `task` in a weak reference would not prevent memory leaks. Weak references are
// primarily used for preventing strong references cycles. `onAbort` is always reachable
// as it's an event listener, so its closure retains a strong reference to the `task`.
const onAbort = () => task.zone.cancelTask(task);
nativeListener.call(signal, 'abort', onAbort, { once: true });
// We need to remove the `abort` listener when the event listener is going to be removed,
// as it creates a closure that captures `task`. This closure retains a reference to the
// `task` object even after it goes out of scope, preventing `task` from being garbage
// collected.
task.removeAbortListener = () => signal.removeEventListener('abort', onAbort);
}
// should clear taskData.target to avoid memory leak
// issue, https://github.com/angular/angular/issues/20442
taskData.target = null;
// need to clear up taskData because it is a global object
if (data) {
data.taskData = null;
}
// have to save those information to task in case
// application may call task.zone.cancelTask() directly
if (once) {
taskData.options.once = true;
}
if (!(!passiveSupported && typeof task.options === 'boolean')) {
// if not support passive, and we pass an option object
// to addEventListener, we should save the options to task
task.options = options;
}
task.target = target;
task.capture = capture;
task.eventName = eventName;
if (isHandleEvent) {
// save original delegate for compare to check duplicate
task.originalDelegate = delegate;
}
if (!prepend) {
existingTasks.push(task);
}
else {
existingTasks.unshift(task);
}
if (returnTarget) {
return target;
}
};
};
proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);
if (nativePrependEventListener) {
proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);
}
proto[REMOVE_EVENT_LISTENER] = function () {
const target = this || _global;
let eventName = arguments[0];
if (patchOptions && patchOptions.transferEventName) {
eventName = patchOptions.transferEventName(eventName);
}
const options = arguments[2];
const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
const delegate = arguments[1];
if (!delegate) {
return nativeRemoveEventListener.apply(this, arguments);
}
if (validateHandler &&
!validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {
return;
}
const symbolEventNames = zoneSymbolEventNames[eventName];
let symbolEventName;
if (symbolEventNames) {
symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
}
const existingTasks = symbolEventName && target[symbolEventName];
// `existingTasks` may not exist if the `addEventListener` was called before
// it was patched by zone.js. Please refer to the attached issue for
// clarification, particularly after the `if` condition, before calling
// the native `removeEventListener`.
if (existingTasks) {
for (let i = 0; i < existingTasks.length; i++) {
const existingTask = existingTasks[i];
if (compare(existingTask, delegate)) {
existingTasks.splice(i, 1);
// set isRemoved to data for faster invokeTask check
existingTask.isRemoved = true;
if (existingTasks.length === 0) {
// all tasks for the eventName + capture have gone,
// remove globalZoneAwareCallback and remove the task cache from target
existingTask.allRemoved = true;
target[symbolEventName] = null;
// in the target, we have an event listener which is added by on_property
// such as target.onclick = function() {}, so we need to clear this internal
// property too if all delegates with capture=false were removed
// https:// github.com/angular/angular/issues/31643
// https://github.com/angular/angular/issues/54581
if (!capture && typeof eventName === 'string') {
const onPropertySymbol = ZONE_SYMBOL_PREFIX + 'ON_PROPERTY' + eventName;
target[onPropertySymbol] = null;
}
}
// In all other conditions, when `addEventListener` is called after being
// patched by zone.js, we would always find an event task on the `EventTarget`.
// This will trigger `cancelFn` on the `existingTask`, leading to `customCancelGlobal`,
// which ultimately removes an event listener and cleans up the abort listener
// (if an `AbortSignal` was provided when scheduling a task).
existingTask.zone.cancelTask(existingTask);
if (returnTarget) {
return target;
}
return;
}
}
}
// https://github.com/angular/zone.js/issues/930
// We may encounter a situation where the `addEventListener` was
// called on the event target before zone.js is loaded, resulting
// in no task being stored on the event target due to its invocation
// of the native implementation. In this scenario, we simply need to
// invoke the native `removeEventListener`.
return nativeRemoveEventListener.apply(this, arguments);
};
proto[LISTENERS_EVENT_LISTENER] = function () {
const target = this || _global;
let eventName = arguments[0];
if (patchOptions && patchOptions.transferEventName) {
eventName = patchOptions.transferEventName(eventName);
}
const listeners = [];
const tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);
for (let i = 0; i < tasks.length; i++) {
const task = tasks[i];
let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
listeners.push(delegate);
}
return listeners;
};
proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {
const target = this || _global;
let eventName = arguments[0];
if (!eventName) {
const keys = Object.keys(target);
for (let i = 0; i < keys.length; i++) {
const prop = keys[i];
const match = EVENT_NAME_SYMBOL_REGX.exec(prop);
let evtName = match && match[1];
// in nodejs EventEmitter, removeListener event is
// used for monitoring the removeListener call,
// so just keep removeListener eventListener until
// all other eventListeners are removed
if (evtName && evtName !== 'removeListener') {
this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);
}
}
// remove removeListener listener finally
this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');
}
else {
if (patchOptions && patchOptions.transferEventName) {
eventName = patchOptions.transferEventName(eventName);
}
const symbolEventNames = zoneSymbolEventNames[eventName];
if (symbolEventNames) {
const symbolEventName = symbolEventNames[FALSE_STR];
const symbolCaptureEventName = symbolEventNames[TRUE_STR];
const tasks = target[symbolEventName];
const captureTasks = target[symbolCaptureEventName];
if (tasks) {
const removeTasks = tasks.slice();
for (let i = 0; i < removeTasks.length; i++) {
const task = removeTasks[i];
let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
}
}
if (captureTasks) {
const removeTasks = captureTasks.slice();
for (let i = 0; i < removeTasks.length; i++) {
const task = removeTasks[i];
let delegate = task.originalDelegate ? task.originalDelegate : task.callback;
this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
}
}
}
}
if (returnTarget) {
return this;
}
};
// for native toString patch
attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);
attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);
if (nativeRemoveAllListeners) {
attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);
}
if (nativeListeners) {
attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);
}
return true;
}
let results = [];
for (let i = 0; i < apis.length; i++) {
results[i] = patchEventTargetMethods(apis[i], patchOptions);
}
return results;
}
function findEventTasks(target, eventName) {
if (!eventName) {
const foundTasks = [];
for (let prop in target) {
const match = EVENT_NAME_SYMBOL_REGX.exec(prop);
let evtName = match && match[1];
if (evtName && (!eventName || evtName === eventName)) {
const tasks = target[prop];
if (tasks) {
for (let i = 0; i < tasks.length; i++) {
foundTasks.push(tasks[i]);
}
}
}
}
return foundTasks;
}
let symbolEventName = zoneSymbolEventNames[eventName];
if (!symbolEventName) {
prepareEventNames(eventName);
symbolEventName = zoneSymbolEventNames[eventName];
}
const captureFalseTasks = target[symbolEventName[FALSE_STR]];
const captureTrueTasks = target[symbolEventName[TRUE_STR]];
if (!captureFalseTasks) {
return captureTrueTasks ? captureTrueTasks.slice() : [];
}
else {
return captureTrueTasks
? captureFalseTasks.concat(captureTrueTasks)
: captureFalseTasks.slice();
}
}
function patchEventPrototype(global, api) {
const Event = global['Event'];
if (Event && Event.prototype) {
api.patchMethod(Event.prototype, 'stopImmediatePropagation', (delegate) => function (self, args) {
self[IMMEDIATE_PROPAGATION_SYMBOL] = true;
// we need to call the native stopImmediatePropagation
// in case in some hybrid application, some part of
// application will be controlled by zone, some are not
delegate && delegate.apply(self, args);
});
}
}
/**
* @fileoverview
* @suppress {missingRequire}
*/
function patchQueueMicrotask(global, api) {
api.patchMethod(global, 'queueMicrotask', (delegate) => {
return function (self, args) {
Zone.current.scheduleMicroTask('queueMicrotask', args[0]);
};
});
}
/**
* @fileoverview
* @suppress {missingRequire}
*/
const taskSymbol = zoneSymbol('zoneTask');
function patchTimer(window, setName, cancelName, nameSuffix) {
let setNative = null;
let clearNative = null;
setName += nameSuffix;
cancelName += nameSuffix;
const tasksByHandleId = {};
function scheduleTask(task) {
const data = task.data;
data.args[0] = function () {
return task.invoke.apply(this, arguments);
};
const handleOrId = setNative.apply(window, data.args);
// Whlist on Node.js when get can the ID by using `[Symbol.toPrimitive]()` we do
// to this so that we do not cause potentally leaks when using `setTimeout`
// since this can be periodic when using `.refresh`.
if (isNumber(handleOrId)) {
data.handleId = handleOrId;
}
else {
data.handle = handleOrId;
// On Node.js a timeout and interval can be restarted over and over again by using the `.refresh` method.
data.isRefreshable = isFunction(handleOrId.refresh);
}
return task;
}
function clearTask(task) {
const { handle, handleId } = task.data;
return clearNative.call(window, handle ?? handleId);
}
setNative = patchMethod(window, setName, (delegate) => function (self, args) {
if (isFunction(args[0])) {
const options = {
isRefreshable: false,
isPeriodic: nameSuffix === 'Interval',
delay: nameSuffix === 'Timeout' || nameSuffix === 'Interval' ? args[1] || 0 : undefined,
args: args,
};
const callback = args[0];
args[0] = function timer() {
try {
return callback.apply(this, arguments);
}
finally {
// issue-934, task will be cancelled
// even it is a periodic task such as
// setInterval
// https://github.com/angular/angular/issues/40387
// Cleanup tasksByHandleId should be handled before scheduleTask
// Since some zoneSpec may intercept and doesn't trigger
// scheduleFn(scheduleTask) provided here.
const { handle, handleId, isPeriodic, isRefreshable } = options;
if (!isPeriodic && !isRefreshable) {
if (handleId) {
// in non-nodejs env, we remove timerId
// from local cache
delete tasksByHandleId[handleId];
}
else if (handle) {
// Node returns complex objects as handleIds
// we remove task reference from timer object
handle[taskSymbol] = null;
}
}
}
};
const task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);
if (!task) {
return task;
}
// Node.js must additionally support the ref and unref functions.
const { handleId, handle, isRefreshable, isPeriodic } = task.data;
if (handleId) {
// for non nodejs env, we save handleId: task
// mapping in local cache for clearTimeout
tasksByHandleId[handleId] = task;
}
else if (handle) {
// for nodejs env, we save task
// reference in timerId Object for clearTimeout
handle[taskSymbol] = task;
if (isRefreshable && !isPeriodic) {
const originalRefresh = handle.refresh;
handle.refresh = function () {
const { zone, state } = task;
if (state === 'notScheduled') {
task._state = 'scheduled';
zone._updateTaskCount(task, 1);
}
else if (state === 'running') {
task._state = 'scheduling';
}
return originalRefresh.call(this);
};
}
}
return handle ?? handleId ?? task;
}
else {
// cause an error by calling it directly.
return delegate.apply(window, args);
}
});
clearNative = patchMethod(window, cancelName, (delegate) => function (self, args) {
const id = args[0];
let task;
if (isNumber(id)) {
// non nodejs env.
task = tasksByHandleId[id];
delete tasksByHandleId[id];
}
else {
// nodejs env ?? other environments.
task = id?.[taskSymbol];
if (task) {
id[taskSymbol] = null;
}
else {
task = id;
}
}
if (task?.type) {
if (task.cancelFn) {
// Do not cancel already canceled functions
task.zone.cancelTask(task);
}
}
else {
// cause an error by calling it directly.
delegate.apply(window, args);
}
});
}
function patchCustomElements(_global, api) {
const { isBrowser, isMix } = api.getGlobalObjects();
if ((!isBrowser && !isMix) || !_global['customElements'] || !('customElements' in _global)) {
return;
}
// https://html.spec.whatwg.org/multipage/custom-elements.html#concept-custom-element-definition-lifecycle-callbacks
const callbacks = [
'connectedCallback',
'disconnectedCallback',
'adoptedCallback',
'attributeChangedCallback',
'formAssociatedCallback',
'formDisabledCallback',
'formResetCallback',
'formStateRestoreCallback',
];
api.patchCallbacks(api, _global.customElements, 'customElements', 'define', callbacks);
}
function eventTargetPatch(_global, api) {
if (Zone[api.symbol('patchEventTarget')]) {
// EventTarget is already patched.
return;
}
const { eventNames, zoneSymbolEventNames, TRUE_STR, FALSE_STR, ZONE_SYMBOL_PREFIX } = api.getGlobalObjects();
// predefine all __zone_symbol__ + eventName + true/false string
for (let i = 0; i < eventNames.length; i++) {
const eventName = eventNames[i];
const falseEventName = eventName + FALSE_STR;
const trueEventName = eventName + TRUE_STR;
const symbol = ZONE_SYMBOL_PREFIX + falseEventName;
const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
zoneSymbolEventNames[eventName] = {};
zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
}
const EVENT_TARGET = _global['EventTarget'];
if (!EVENT_TARGET || !EVENT_TARGET.prototype) {
return;
}
api.patchEventTarget(_global, api, [EVENT_TARGET && EVENT_TARGET.prototype]);
return true;
}
function patchEvent(global, api) {
api.patchEventPrototype(global, api);
}
/**
* @fileoverview
* @suppress {globalThis}
*/
function filterProperties(target, onProperties, ignoreProperties) {
if (!ignoreProperties || ignoreProperties.length === 0) {
return onProperties;
}
const tip = ignoreProperties.filter((ip) => ip.target === target);
if (!tip || tip.length === 0) {
return onProperties;
}
const targetIgnoreProperties = tip[0].ignoreProperties;
return onProperties.filter((op) => targetIgnoreProperties.indexOf(op) === -1);
}
function patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {
// check whether target is available, sometimes target will be undefined
// because different browser or some 3rd party plugin.
if (!target) {
return;
}
const filteredProperties = filterProperties(target, onProperties, ignoreProperties);
patchOnProperties(target, filteredProperties, prototype);
}
/**
* Get all event name properties which the event name startsWith `on`
* from the target object itself, inherited properties are not considered.
*/
function getOnEventNames(target) {
return Object.getOwnPropertyNames(target)
.filter((name) => name.startsWith('on') && name.length > 2)
.map((name) => name.substring(2));
}
function propertyDescriptorPatch(api, _global) {
if (isNode && !isMix) {
return;
}
if (Zone[api.symbol('patchEvents')]) {
// events are already been patched by legacy patch.
return;
}
const ignoreProperties = _global['__Zone_ignore_on_properties'];
// for browsers that we can patch the descriptor: Chrome & Firefox
let patchTargets = [];
if (isBrowser) {
const internalWindow = window;
patchTargets = patchTargets.concat([
'Document',
'SVGElement',
'Element',
'HTMLElement',
'HTMLBodyElement',
'HTMLMediaElement',
'HTMLFrameSetElement',
'HTMLFrameElement',
'HTMLIFrameElement',
'HTMLMarqueeElement',
'Worker',
]);
const ignoreErrorProperties = isIE()
? [{ target: internalWindow, ignoreProperties: ['error'] }]
: [];
// in IE/Edge, onProp not exist in window object, but in WindowPrototype
// so we need to pass WindowPrototype to check onProp exist or not
patchFilteredProperties(internalWindow, getOnEventNames(internalWindow), ignoreProperties ? ignoreProperties.concat(ignoreErrorProperties) : ignoreProperties, ObjectGetPrototypeOf(internalWindow));
}
patchTargets = patchTargets.concat([
'XMLHttpRequest',
'XMLHttpRequestEventTarget',
'IDBIndex',
'IDBRequest',
'IDBOpenDBRequest',
'IDBDatabase',
'IDBTransaction',
'IDBCursor',
'WebSocket',
]);
for (let i = 0; i < patchTargets.length; i++) {
const target = _global[patchTargets[i]];
target &&
target.prototype &&
patchFilteredProperties(target.prototype, getOnEventNames(target.prototype), ignoreProperties);
}
}
/**
* @fileoverview
* @suppress {missingRequire}
*/
function patchBrowser(Zone) {
Zone.__load_patch('legacy', (global) => {
const legacyPatch = global[Zone.__symbol__('legacyPatch')];
if (legacyPatch) {
legacyPatch();
}
});
Zone.__load_patch('timers', (global) => {
const set = 'set';
const clear = 'clear';
patchTimer(global, set, clear, 'Timeout');
patchTimer(global, set, clear, 'Interval');
patchTimer(global, set, clear, 'Immediate');
});
Zone.__load_patch('requestAnimationFrame', (global) => {
patchTimer(global, 'request', 'cancel', 'AnimationFrame');
patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');
patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');
});
Zone.__load_patch('blocking', (global, Zone) => {
const blockingMethods = ['alert', 'prompt', 'confirm'];
for (let i = 0; i < blockingMethods.length; i++) {
const name = blockingMethods[i];
patchMethod(global, name, (delegate, symbol, name) => {
return function (s, args) {
return Zone.current.run(delegate, global, args, name);
};
});
}
});
Zone.__load_patch('EventTarget', (global, Zone, api) => {
patchEvent(global, api);
eventTargetPatch(global, api);
// patch XMLHttpRequestEventTarget's addEventListener/removeEventListener
const XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];
if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {
api.patchEventTarget(global, api, [XMLHttpRequestEventTarget.prototype]);
}
});
Zone.__load_patch('MutationObserver', (global, Zone, api) => {
patchClass('MutationObserver');
patchClass('WebKitMutationObserver');
});
Zone.__load_patch('IntersectionObserver', (global, Zone, api) => {
patchClass('IntersectionObserver');
});
Zone.__load_patch('FileReader', (global, Zone, api) => {
patchClass('FileReader');
});
Zone.__load_patch('on_property', (global, Zone, api) => {
propertyDescriptorPatch(api, global);
});
Zone.__load_patch('customElements', (global, Zone, api) => {
patchCustomElements(global, api);
});
Zone.__load_patch('XHR', (global, Zone) => {
// Treat XMLHttpRequest as a macrotask.
patchXHR(global);
const XHR_TASK = zoneSymbol('xhrTask');
const XHR_SYNC = zoneSymbol('xhrSync');
const XHR_LISTENER = zoneSymbol('xhrListener');
const XHR_SCHEDULED = zoneSymbol('xhrScheduled');
const XHR_URL = zoneSymbol('xhrURL');
const XHR_ERROR_BEFORE_SCHEDULED = zoneSymbol('xhrErrorBeforeScheduled');
function patchXHR(window) {
const XMLHttpRequest = window['XMLHttpRequest'];
if (!XMLHttpRequest) {
// XMLHttpRequest is not available in service worker
return;
}
const XMLHttpRequestPrototype = XMLHttpRequest.prototype;
function findPendingTask(target) {
return target[XHR_TASK];
}
let oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
let oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
if (!oriAddListener) {
const XMLHttpRequestEventTarget = window['XMLHttpRequestEventTarget'];
if (XMLHttpRequestEventTarget) {
const XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget.prototype;
oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];
oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
}
}
const READY_STATE_CHANGE = 'readystatechange';
const SCHEDULED = 'scheduled';
function scheduleTask(task) {
const data = task.data;
const target = data.target;
target[XHR_SCHEDULED] = false;
target[XHR_ERROR_BEFORE_SCHEDULED] = false;
// remove existing event listener
const listener = target[XHR_LISTENER];
if (!oriAddListener) {
oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];
oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];
}
if (listener) {
oriRemoveListener.call(target, READY_STATE_CHANGE, listener);
}
const newListener = (target[XHR_LISTENER] = () => {
if (target.readyState === target.DONE) {
// sometimes on some browsers XMLHttpRequest will fire onreadystatechange with
// readyState=4 multiple times, so we need to check task state here
if (!data.aborted && target[XHR_SCHEDULED] && task.state === SCHEDULED) {
// check whether the xhr has registered onload listener
// if that is the case, the task should invoke after all
// onload listeners finish.
// Also if the request failed without response (status = 0), the load event handler
// will not be triggered, in that case, we should also invoke the placeholder callback
// to close the XMLHttpRequest::send macroTask.
// https://github.com/angular/angular/issues/38795
const loadTasks = target[Zone.__symbol__('loadfalse')];
if (target.status !== 0 && loadTasks && loadTasks.length > 0) {
const oriInvoke = task.invoke;
task.invoke = function () {
// need to load the tasks again, because in other
// load listener, they may remove themselves
const loadTasks = target[Zone.__symbol__('loadfalse')];
for (let i = 0; i < loadTasks.length; i++) {
if (loadTasks[i] === task) {
loadTasks.splice(i, 1);
}
}
if (!data.aborted && task.state === SCHEDULED) {
oriInvoke.call(task);
}
};
loadTasks.push(task);
}
else {
task.invoke();
}
}
else if (!data.aborted && target[XHR_SCHEDULED] === false) {
// error occurs when xhr.send()
target[XHR_ERROR_BEFORE_SCHEDULED] = true;
}
}
});
oriAddListener.call(target, READY_STATE_CHANGE, newListener);
const storedTask = target[XHR_TASK];
if (!storedTask) {
target[XHR_TASK] = task;
}
sendNative.apply(target, data.args);
target[XHR_SCHEDULED] = true;
return task;
}
function placeholderCallback() { }
function clearTask(task) {
const data = task.data;
// Note - ideally, we would call data.target.removeEventListener here, but it's too late
// to prevent it from firing. So instead, we store info for the event listener.
data.aborted = true;
return abortNative.apply(data.target, data.args);
}
const openNative = patchMethod(XMLHttpRequestPrototype, 'open', () => function (self, args) {
self[XHR_SYNC] = args[2] == false;
self[XHR_URL] = args[1];
return openNative.apply(self, args);
});
const XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';
const fetchTaskAborting = zoneSymbol('fetchTaskAborting');
const fetchTaskScheduling = zoneSymbol('fetchTaskScheduling');
const sendNative = patchMethod(XMLHttpRequestPrototype, 'send', () => function (self, args) {
if (Zone.current[fetchTaskScheduling] === true) {
// a fetch is scheduling, so we are using xhr to polyfill fetch
// and because we already schedule macroTask for fetch, we should
// not schedule a macroTask for xhr again
return sendNative.apply(self, args);
}
if (self[XHR_SYNC]) {
// if the XHR is sync there is no task to schedule, just execute the code.
return sendNative.apply(self, args);
}
else {
const options = {
target: self,
url: self[XHR_URL],
isPeriodic: false,
args: args,
aborted: false,
};
const task = scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);
if (self &&
self[XHR_ERROR_BEFORE_SCHEDULED] === true &&
!options.aborted &&
task.state === SCHEDULED) {
// xhr request throw error when send
// we should invoke task instead of leaving a scheduled
// pending macroTask
task.invoke();
}
}
});
const abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', () => function (self, args) {
const task = findPendingTask(self);
if (task && typeof task.type == 'string') {
// If the XHR has already completed, do nothing.
// If the XHR has already been aborted, do nothing.
// Fix #569, call abort multiple times before done will cause
// macroTask task count be negative number
if (task.cancelFn == null || (task.data && task.data.aborted)) {
return;
}
task.zone.cancelTask(task);
}
else if (Zone.current[fetchTaskAborting] === true) {
// the abort is called from fetch polyfill, we need to call native abort of XHR.
return abortNative.apply(self, args);
}
// Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no
// task
// to cancel. Do nothing.
});
}
});
Zone.__load_patch('geolocation', (global) => {
/// GEO_LOCATION
if (global['navigator'] && global['navigator'].geolocation) {
patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);
}
});
Zone.__load_patch('PromiseRejectionEvent', (global, Zone) => {
// handle unhandled promise rejection
function findPromiseRejectionHandler(evtName) {
return function (e) {
const eventTasks = findEventTasks(global, evtName);
eventTasks.forEach((eventTask) => {
// windows has added unhandledrejection event listener
// trigger the event listener
const PromiseRejectionEvent = global['PromiseRejectionEvent'];
if (PromiseRejectionEvent) {
const evt = new PromiseRejectionEvent(evtName, {
promise: e.promise,
reason: e.rejection,
});
eventTask.invoke(evt);
}
});
};
}
if (global['PromiseRejectionEvent']) {
Zone[zoneSymbol('unhandledPromiseRejectionHandler')] =
findPromiseRejectionHandler('unhandledrejection');
Zone[zoneSymbol('rejectionHandledHandler')] =
findPromiseRejectionHandler('rejectionhandled');
}
});
Zone.__load_patch('queueMicrotask', (global, Zone, api) => {
patchQueueMicrotask(global, api);
});
}
function patchPromise(Zone) {
Zone.__load_patch('ZoneAwarePromise', (global, Zone, api) => {
const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
const ObjectDefineProperty = Object.defineProperty;
function readableObjectToString(obj) {
if (obj && obj.toString === Object.prototype.toString) {
const className = obj.constructor && obj.constructor.name;
return (className ? className : '') + ': ' + JSON.stringify(obj);
}
return obj ? obj.toString() : Object.prototype.toString.call(obj);
}
const __symbol__ = api.symbol;
const _uncaughtPromiseErrors = [];
const isDisableWrappingUncaughtPromiseRejection = global[__symbol__('DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION')] !== false;
const symbolPromise = __symbol__('Promise');
const symbolThen = __symbol__('then');
const creationTrace = '__creationTrace__';
api.onUnhandledError = (e) => {
if (api.showUncaughtError()) {
const rejection = e && e.rejection;
if (rejection) {
console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);
}
else {
console.error(e);
}
}
};
api.microtaskDrainDone = () => {
while (_uncaughtPromiseErrors.length) {
const uncaughtPromiseError = _uncaughtPromiseErrors.shift();
try {
uncaughtPromiseError.zone.runGuarded(() => {
if (uncaughtPromiseError.throwOriginal) {
throw uncaughtPromiseError.rejection;
}
throw uncaughtPromiseError;
});
}
catch (error) {
handleUnhandledRejection(error);
}
}
};
const UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');
function handleUnhandledRejection(e) {
api.onUnhandledError(e);
try {
const handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];
if (typeof handler === 'function') {
handler.call(this, e);
}
}
catch (err) { }
}
function isThenable(value) {
return value && value.then;
}
function forwardResolution(value) {
return value;
}
function forwardRejection(rejection) {
return ZoneAwarePromise.reject(rejection);
}
const symbolState = __symbol__('state');
const symbolValue = __symbol__('value');
const symbolFinally = __symbol__('finally');
const symbolParentPromiseValue = __symbol__('parentPromiseValue');
const symbolParentPromiseState = __symbol__('parentPromiseState');
const source = 'Promise.then';
const UNRESOLVED = null;
const RESOLVED = true;
const REJECTED = false;
const REJECTED_NO_CATCH = 0;
function makeResolver(promise, state) {
return (v) => {
try {
resolvePromise(promise, state, v);
}
catch (err) {
resolvePromise(promise, false, err);
}
// Do not return value or you will break the Promise spec.
};
}
const once = function () {
let wasCalled = false;
return function wrapper(wrappedFunction) {
return function () {
if (wasCalled) {
return;
}
wasCalled = true;
wrappedFunction.apply(null, arguments);
};
};
};
const TYPE_ERROR = 'Promise resolved with itself';
const CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');
// Promise Resolution
function resolvePromise(promise, state, value) {
const onceWrapper = once();
if (promise === value) {
throw new TypeError(TYPE_ERROR);
}
if (promise[symbolState] === UNRESOLVED) {
// should only get value.then once based on promise spec.
let then = null;
try {
if (typeof value === 'object' || typeof value === 'function') {
then = value && value.then;
}
}
catch (err) {
onceWrapper(() => {
resolvePromise(promise, false, err);
})();
return promise;
}
// if (value instanceof ZoneAwarePromise) {
if (state !== REJECTED &&
value instanceof ZoneAwarePromise &&
value.hasOwnProperty(symbolState) &&
value.hasOwnProperty(symbolValue) &&
value[symbolState] !== UNRESOLVED) {
clearRejectedNoCatch(value);
resolvePromise(promise, value[symbolState], value[symbolValue]);
}
else if (state !== REJECTED && typeof then === 'function') {
try {
then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));
}
catch (err) {
onceWrapper(() => {
resolvePromise(promise, false, err);
})();
}
}
else {
promise[symbolState] = state;
const queue = promise[symbolValue];
promise[symbolValue] = value;
if (promise[symbolFinally] === symbolFinally) {
// the promise is generated by Promise.prototype.finally
if (state === RESOLVED) {
// the state is resolved, should ignore the value
// and use parent promise value
promise[symbolState] = promise[symbolParentPromiseState];
promise[symbolValue] = promise[symbolParentPromiseValue];
}
}
// record task information in value when error occurs, so we can
// do some additional work such as render longStackTrace
if (state === REJECTED && value instanceof Error) {
// check if longStackTraceZone is here
const trace = Zone.currentTask &&
Zone.currentTask.data &&
Zone.currentTask.data[creationTrace];
if (trace) {
// only keep the long stack trace into error when in longStackTraceZone
ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, {
configurable: true,
enumerable: false,
writable: true,
value: trace,
});
}
}
for (let i = 0; i < queue.length;) {
scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);
}
if (queue.length == 0 && state == REJECTED) {
promise[symbolState] = REJECTED_NO_CATCH;
let uncaughtPromiseError = value;
try {
// Here we throws a new Error to print more readable error log
// and if the value is not an error, zone.js builds an `Error`
// Object here to attach the stack information.
throw new Error('Uncaught (in promise): ' +
readableObjectToString(value) +
(value && value.stack ? '\n' + value.stack : ''));
}
catch (err) {
uncaughtPromiseError = err;
}
if (isDisableWrappingUncaughtPromiseRejection) {
// If disable wrapping uncaught promise reject
// use the value instead of wrapping it.
uncaughtPromiseError.throwOriginal = true;
}
uncaughtPromiseError.rejection = value;
uncaughtPromiseError.promise = promise;
uncaughtPromiseError.zone = Zone.current;
uncaughtPromiseError.task = Zone.currentTask;
_uncaughtPromiseErrors.push(uncaughtPromiseError);
api.scheduleMicroTask(); // to make sure that it is running
}
}
}
// Resolving an already resolved promise is a noop.
return promise;
}
const REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');
function clearRejectedNoCatch(promise) {
if (promise[symbolState] === REJECTED_NO_CATCH) {
// if the promise is rejected no catch status
// and queue.length > 0, means there is a error handler
// here to handle the rejected promise, we should trigger
// windows.rejectionhandled eventHandler or nodejs rejectionHandled
// eventHandler
try {
const handler = Zone[REJECTION_HANDLED_HANDLER];
if (handler && typeof handler === 'function') {
handler.call(this, { rejection: promise[symbolValue], promise: promise });
}
}
catch (err) { }
promise[symbolState] = REJECTED;
for (let i = 0; i < _uncaughtPromiseErrors.length; i++) {
if (promise === _uncaughtPromiseErrors[i].promise) {
_uncaughtPromiseErrors.splice(i, 1);
}
}
}
}
function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {
clearRejectedNoCatch(promise);
const promiseState = promise[symbolState];
const delegate = promiseState
? typeof onFulfilled === 'function'
? onFulfilled
: forwardResolution
: typeof onRejected === 'function'
? onRejected
: forwardRejection;
zone.scheduleMicroTask(source, () => {
try {
const parentPromiseValue = promise[symbolValue];
const isFinallyPromise = !!chainPromise && symbolFinally === chainPromise[symbolFinally];
if (isFinallyPromise) {
// if the promise is generated from finally call, keep parent promise's state and value
chainPromise[symbolParentPromiseValue] = parentPromiseValue;
chainPromise[symbolParentPromiseState] = promiseState;
}
// should not pass value to finally callback
const value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution
? []
: [parentPromiseValue]);
resolvePromise(chainPromise, true, value);
}
catch (error) {
// if error occurs, should always return this error
resolvePromise(chainPromise, false, error);
}
}, chainPromise);
}
const ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';
const noop = function () { };
const AggregateError = global.AggregateError;
class ZoneAwarePromise {
static toString() {
return ZONE_AWARE_PROMISE_TO_STRING;
}
static resolve(value) {
if (value instanceof ZoneAwarePromise) {
return value;
}
return resolvePromise(new this(null), RESOLVED, value);
}
static reject(error) {
return resolvePromise(new this(null), REJECTED, error);
}
static withResolvers() {
const result = {};
result.promise = new ZoneAwarePromise((res, rej) => {
result.resolve = res;
result.reject = rej;
});
return result;
}
static any(values) {
if (!values || typeof values[Symbol.iterator] !== 'function') {
return Promise.reject(new AggregateError([], 'All promises were rejected'));
}
const promises = [];
let count = 0;
try {
for (let v of values) {
count++;
promises.push(ZoneAwarePromise.resolve(v));
}
}
catch (err) {
return Promise.reject(new AggregateError([], 'All promises were rejected'));
}
if (count === 0) {
return Promise.reject(new AggregateError([], 'All promises were rejected'));
}
let finished = false;
const errors = [];
return new ZoneAwarePromise((resolve, reject) => {
for (let i = 0; i < promises.length; i++) {
promises[i].then((v) => {
if (finished) {
return;
}
finished = true;
resolve(v);
}, (err) => {
errors.push(err);
count--;
if (count === 0) {
finished = true;
reject(new AggregateError(errors, 'All promises were rejected'));
}
});
}
});
}
static race(values) {
let resolve;
let reject;
let promise = new this((res, rej) => {
resolve = res;
reject = rej;
});
function onResolve(value) {
resolve(value);
}
function onReject(error) {
reject(error);
}
for (let value of values) {
if (!isThenable(value)) {
value = this.resolve(value);
}
value.then(onResolve, onReject);
}
return promise;
}
static all(values) {
return ZoneAwarePromise.allWithCallback(values);
}
static allSettled(values) {
const P = this && this.prototype instanceof ZoneAwarePromise ? this : ZoneAwarePromise;
return P.allWithCallback(values, {
thenCallback: (value) => ({ status: 'fulfilled', value }),
errorCallback: (err) => ({ status: 'rejected', reason: err }),
});
}
static allWithCallback(values, callback) {
let resolve;
let reject;
let promise = new this((res, rej) => {
resolve = res;
reject = rej;
});
// Start at 2 to prevent prematurely resolving if .then is called immediately.
let unresolvedCount = 2;
let valueIndex = 0;
const resolvedValues = [];
for (let value of values) {
if (!isThenable(value)) {
value = this.resolve(value);
}
const curValueIndex = valueIndex;
try {
value.then((value) => {
resolvedValues[curValueIndex] = callback ? callback.thenCallback(value) : value;
unresolvedCount--;
if (unresolvedCount === 0) {
resolve(resolvedValues);
}
}, (err) => {
if (!callback) {
reject(err);
}
else {
resolvedValues[curValueIndex] = callback.errorCallback(err);
unresolvedCount--;
if (unresolvedCount === 0) {
resolve(resolvedValues);
}
}
});
}
catch (thenErr) {
reject(thenErr);
}
unresolvedCount++;
valueIndex++;
}
// Make the unresolvedCount zero-based again.
unresolvedCount -= 2;
if (unresolvedCount === 0) {
resolve(resolvedValues);
}
return promise;
}
constructor(executor) {
const promise = this;
if (!(promise instanceof ZoneAwarePromise)) {
throw new Error('Must be an instanceof Promise.');
}
promise[symbolState] = UNRESOLVED;
promise[symbolValue] = []; // queue;
try {
const onceWrapper = once();
executor &&
executor(onceWrapper(makeResolver(promise, RESOLVED)), onceWrapper(makeResolver(promise, REJECTED)));
}
catch (error) {
resolvePromise(promise, false, error);
}
}
get [Symbol.toStringTag]() {
return 'Promise';
}
get [Symbol.species]() {
return ZoneAwarePromise;
}
then(onFulfilled, onRejected) {
// We must read `Symbol.species` safely because `this` may be anything. For instance, `this`
// may be an object without a prototype (created through `Object.create(null)`); thus
// `this.constructor` will be undefined. One of the use cases is SystemJS creating
// prototype-less objects (modules) via `Object.create(null)`. The SystemJS creates an empty
// object and copies promise properties into that object (within the `getOrCreateLoad`
// function). The zone.js then checks if the resolved value has the `then` method and
// invokes it with the `value` context. Otherwise, this will throw an error: `TypeError:
// Cannot read properties of undefined (reading 'Symbol(Symbol.species)')`.
let C = this.constructor?.[Symbol.species];
if (!C || typeof C !== 'function') {
C = this.constructor || ZoneAwarePromise;
}
const chainPromise = new C(noop);
const zone = Zone.current;
if (this[symbolState] == UNRESOLVED) {
this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);
}
else {
scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);
}
return chainPromise;
}
catch(onRejected) {
return this.then(null, onRejected);
}
finally(onFinally) {
// See comment on the call to `then` about why thee `Symbol.species` is safely accessed.
let C = this.constructor?.[Symbol.species];
if (!C || typeof C !== 'function') {
C = ZoneAwarePromise;
}
const chainPromise = new C(noop);
chainPromise[symbolFinally] = symbolFinally;
const zone = Zone.current;
if (this[symbolState] == UNRESOLVED) {
this[symbolValue].push(zone, chainPromise, onFinally, onFinally);
}
else {
scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);
}
return chainPromise;
}
}
// Protect against aggressive optimizers dropping seemingly unused properties.
// E.g. Closure Compiler in advanced mode.
ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;
ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;
ZoneAwarePromise['race'] = ZoneAwarePromise.race;
ZoneAwarePromise['all'] = ZoneAwarePromise.all;
const NativePromise = (global[symbolPromise] = global['Promise']);
global['Promise'] = ZoneAwarePromise;
const symbolThenPatched = __symbol__('thenPatched');
function patchThen(Ctor) {
const proto = Ctor.prototype;
const prop = ObjectGetOwnPropertyDescriptor(proto, 'then');
if (prop && (prop.writable === false || !prop.configurable)) {
// check Ctor.prototype.then propertyDescriptor is writable or not
// in meteor env, writable is false, we should ignore such case
return;
}
const originalThen = proto.then;
// Keep a reference to the original method.
proto[symbolThen] = originalThen;
Ctor.prototype.then = function (onResolve, onReject) {
const wrapped = new ZoneAwarePromise((resolve, reject) => {
originalThen.call(this, resolve, reject);
});
return wrapped.then(onResolve, onReject);
};
Ctor[symbolThenPatched] = true;
}
api.patchThen = patchThen;
function zoneify(fn) {
return function (self, args) {
let resultPromise = fn.apply(self, args);
if (resultPromise instanceof ZoneAwarePromise) {
return resultPromise;
}
let ctor = resultPromise.constructor;
if (!ctor[symbolThenPatched]) {
patchThen(ctor);
}
return resultPromise;
};
}
if (NativePromise) {
patchThen(NativePromise);
patchMethod(global, 'fetch', (delegate) => zoneify(delegate));
}
// This is not part of public API, but it is useful for tests, so we expose it.
Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;
return ZoneAwarePromise;
});
}
function patchToString(Zone) {
// override Function.prototype.toString to make zone.js patched function
// look like native function
Zone.__load_patch('toString', (global) => {
// patch Func.prototype.toString to let them look like native
const originalFunctionToString = Function.prototype.toString;
const ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');
const PROMISE_SYMBOL = zoneSymbol('Promise');
const ERROR_SYMBOL = zoneSymbol('Error');
const newFunctionToString = function toString() {
if (typeof this === 'function') {
const originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];
if (originalDelegate) {
if (typeof originalDelegate === 'function') {
return originalFunctionToString.call(originalDelegate);
}
else {
return Object.prototype.toString.call(originalDelegate);
}
}
if (this === Promise) {
const nativePromise = global[PROMISE_SYMBOL];
if (nativePromise) {
return originalFunctionToString.call(nativePromise);
}
}
if (this === Error) {
const nativeError = global[ERROR_SYMBOL];
if (nativeError) {
return originalFunctionToString.call(nativeError);
}
}
}
return originalFunctionToString.call(this);
};
newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;
Function.prototype.toString = newFunctionToString;
// patch Object.prototype.toString to let them look like native
const originalObjectToString = Object.prototype.toString;
const PROMISE_OBJECT_TO_STRING = '[object Promise]';
Object.prototype.toString = function () {
if (typeof Promise === 'function' && this instanceof Promise) {
return PROMISE_OBJECT_TO_STRING;
}
return originalObjectToString.call(this);
};
});
}
function patchCallbacks(api, target, targetName, method, callbacks) {
const symbol = Zone.__symbol__(method);
if (target[symbol]) {
return;
}
const nativeDelegate = (target[symbol] = target[method]);
target[method] = function (name, opts, options) {
if (opts && opts.prototype) {
callbacks.forEach(function (callback) {
const source = `${targetName}.${method}::` + callback;
const prototype = opts.prototype;
// Note: the `patchCallbacks` is used for patching the `document.registerElement` and
// `customElements.define`. We explicitly wrap the patching code into try-catch since
// callbacks may be already patched by other web components frameworks (e.g. LWC), and they
// make those properties non-writable. This means that patching callback will throw an error
// `cannot assign to read-only property`. See this code as an example:
// https://github.com/salesforce/lwc/blob/master/packages/@lwc/engine-core/src/framework/base-bridge-element.ts#L180-L186
// We don't want to stop the application rendering if we couldn't patch some
// callback, e.g. `attributeChangedCallback`.
try {
if (prototype.hasOwnProperty(callback)) {
const descriptor = api.ObjectGetOwnPropertyDescriptor(prototype, callback);
if (descriptor && descriptor.value) {
descriptor.value = api.wrapWithCurrentZone(descriptor.value, source);
api._redefineProperty(opts.prototype, callback, descriptor);
}
else if (prototype[callback]) {
prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
}
}
else if (prototype[callback]) {
prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);
}
}
catch {
// Note: we leave the catch block empty since there's no way to handle the error related
// to non-writable property.
}
});
}
return nativeDelegate.call(target, name, opts, options);
};
api.attachOriginToPatched(target[method], nativeDelegate);
}
function patchUtil(Zone) {
Zone.__load_patch('util', (global, Zone, api) => {
// Collect native event names by looking at properties
// on the global namespace, e.g. 'onclick'.
const eventNames = getOnEventNames(global);
api.patchOnProperties = patchOnProperties;
api.patchMethod = patchMethod;
api.bindArguments = bindArguments;
api.patchMacroTask = patchMacroTask;
// In earlier version of zone.js (<0.9.0), we use env name `__zone_symbol__BLACK_LISTED_EVENTS`
// to define which events will not be patched by `Zone.js`. In newer version (>=0.9.0), we
// change the env name to `__zone_symbol__UNPATCHED_EVENTS` to keep the name consistent with
// angular repo. The `__zone_symbol__BLACK_LISTED_EVENTS` is deprecated, but it is still be
// supported for backwards compatibility.
const SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');
const SYMBOL_UNPATCHED_EVENTS = Zone.__symbol__('UNPATCHED_EVENTS');
if (global[SYMBOL_UNPATCHED_EVENTS]) {
global[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_UNPATCHED_EVENTS];
}
if (global[SYMBOL_BLACK_LISTED_EVENTS]) {
Zone[SYMBOL_BLACK_LISTED_EVENTS] = Zone[SYMBOL_UNPATCHED_EVENTS] =
global[SYMBOL_BLACK_LISTED_EVENTS];
}
api.patchEventPrototype = patchEventPrototype;
api.patchEventTarget = patchEventTarget;
api.isIEOrEdge = isIEOrEdge;
api.ObjectDefineProperty = ObjectDefineProperty;
api.ObjectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;
api.ObjectCreate = ObjectCreate;
api.ArraySlice = ArraySlice;
api.patchClass = patchClass;
api.wrapWithCurrentZone = wrapWithCurrentZone;
api.filterProperties = filterProperties;
api.attachOriginToPatched = attachOriginToPatched;
api._redefineProperty = Object.defineProperty;
api.patchCallbacks = patchCallbacks;
api.getGlobalObjects = () => ({
globalSources,
zoneSymbolEventNames,
eventNames,
isBrowser,
isMix,
isNode,
TRUE_STR,
FALSE_STR,
ZONE_SYMBOL_PREFIX,
ADD_EVENT_LISTENER_STR,
REMOVE_EVENT_LISTENER_STR,
});
});
}
function patchCommon(Zone) {
patchPromise(Zone);
patchToString(Zone);
patchUtil(Zone);
}
function patchEvents(Zone) {
Zone.__load_patch('EventEmitter', (global, Zone, api) => {
// For EventEmitter
const EE_ADD_LISTENER = 'addListener';
const EE_PREPEND_LISTENER = 'prependListener';
const EE_REMOVE_LISTENER = 'removeListener';
const EE_REMOVE_ALL_LISTENER = 'removeAllListeners';
const EE_LISTENERS = 'listeners';
const EE_ON = 'on';
const EE_OFF = 'off';
const compareTaskCallbackVsDelegate = function (task, delegate) {
// same callback, same capture, same event name, just return
return task.callback === delegate || task.callback.listener === delegate;
};
const eventNameToString = function (eventName) {
if (typeof eventName === 'string') {
return eventName;
}
if (!eventName) {
return '';
}
return eventName.toString().replace('(', '_').replace(')', '_');
};
function patchEventEmitterMethods(obj) {
const result = patchEventTarget(global, api, [obj], {
useG: false,
add: EE_ADD_LISTENER,
rm: EE_REMOVE_LISTENER,
prepend: EE_PREPEND_LISTENER,
rmAll: EE_REMOVE_ALL_LISTENER,
listeners: EE_LISTENERS,
chkDup: false,
rt: true,
diff: compareTaskCallbackVsDelegate,
eventNameToString: eventNameToString,
});
if (result && result[0]) {
obj[EE_ON] = obj[EE_ADD_LISTENER];
obj[EE_OFF] = obj[EE_REMOVE_LISTENER];
}
}
// EventEmitter
let events;
try {
events = require('events');
}
catch (err) { }
if (events && events.EventEmitter) {
patchEventEmitterMethods(events.EventEmitter.prototype);
}
});
}
function patchFs(Zone) {
Zone.__load_patch('fs', (global, Zone, api) => {
let fs;
try {
fs = require('fs');
}
catch (err) { }
if (!fs)
return;
// watch, watchFile, unwatchFile has been patched
// because EventEmitter has been patched
const TO_PATCH_MACROTASK_METHODS = [
'access',
'appendFile',
'chmod',
'chown',
'close',
'exists',
'fchmod',
'fchown',
'fdatasync',
'fstat',
'fsync',
'ftruncate',
'futimes',
'lchmod',
'lchown',
'lutimes',
'link',
'lstat',
'mkdir',
'mkdtemp',
'open',
'opendir',
'read',
'readdir',
'readFile',
'readlink',
'realpath',
'rename',
'rmdir',
'stat',
'symlink',
'truncate',
'unlink',
'utimes',
'write',
'writeFile',
'writev',
];
TO_PATCH_MACROTASK_METHODS.filter((name) => !!fs[name] && typeof fs[name] === 'function').forEach((name) => {
patchMacroTask(fs, name, (self, args) => {
return {
name: 'fs.' + name,
args: args,
cbIdx: args.length > 0 ? args.length - 1 : -1,
target: self,
};
});
});
const realpathOriginalDelegate = fs.realpath?.[api.symbol('OriginalDelegate')];
// This is the only specific method that should be additionally patched because the previous
// `patchMacroTask` has overridden the `realpath` function and its `native` property.
if (realpathOriginalDelegate?.native) {
fs.realpath.native = realpathOriginalDelegate.native;
patchMacroTask(fs.realpath, 'native', (self, args) => ({
args,
target: self,
cbIdx: args.length > 0 ? args.length - 1 : -1,
name: 'fs.realpath.native',
}));
}
});
}
function patchNodeUtil(Zone) {
Zone.__load_patch('node_util', (global, Zone, api) => {
api.patchOnProperties = patchOnProperties;
api.patchMethod = patchMethod;
api.bindArguments = bindArguments;
api.patchMacroTask = patchMacroTask;
setShouldCopySymbolProperties(true);
});
}
const set = 'set';
const clear = 'clear';
function patchNode(Zone) {
patchNodeUtil(Zone);
patchEvents(Zone);
patchFs(Zone);
Zone.__load_patch('node_timers', (global, Zone) => {
// Timers
let globalUseTimeoutFromTimer = false;
try {
const timers = require('timers');
let globalEqualTimersTimeout = global.setTimeout === timers.setTimeout;
if (!globalEqualTimersTimeout && !isMix) {
// 1. if isMix, then we are in mix environment such as Electron
// we should only patch timers.setTimeout because global.setTimeout
// have been patched
// 2. if global.setTimeout not equal timers.setTimeout, check
// whether global.setTimeout use timers.setTimeout or not
const originSetTimeout = timers.setTimeout;
timers.setTimeout = function () {
globalUseTimeoutFromTimer = true;
return originSetTimeout.apply(this, arguments);
};
const detectTimeout = global.setTimeout(() => { }, 100);
clearTimeout(detectTimeout);
timers.setTimeout = originSetTimeout;
}
patchTimer(timers, set, clear, 'Timeout');
patchTimer(timers, set, clear, 'Interval');
patchTimer(timers, set, clear, 'Immediate');
}
catch (error) {
// timers module not exists, for example, when we using nativeScript
// timers is not available
}
if (isMix) {
// if we are in mix environment, such as Electron,
// the global.setTimeout has already been patched,
// so we just patch timers.setTimeout
return;
}
if (!globalUseTimeoutFromTimer) {
// 1. global setTimeout equals timers setTimeout
// 2. or global don't use timers setTimeout(maybe some other library patch setTimeout)
// 3. or load timers module error happens, we should patch global setTimeout
patchTimer(global, set, clear, 'Timeout');
patchTimer(global, set, clear, 'Interval');
patchTimer(global, set, clear, 'Immediate');
}
else {
// global use timers setTimeout, but not equals
// this happens when use nodejs v0.10.x, global setTimeout will
// use a lazy load version of timers setTimeout
// we should not double patch timer's setTimeout
// so we only store the __symbol__ for consistency
global[Zone.__symbol__('setTimeout')] = global.setTimeout;
global[Zone.__symbol__('setInterval')] = global.setInterval;
global[Zone.__symbol__('setImmediate')] = global.setImmediate;
}
});
// patch process related methods
Zone.__load_patch('nextTick', () => {
// patch nextTick as microTask
patchMicroTask(process, 'nextTick', (self, args) => {
return {
name: 'process.nextTick',
args: args,
cbIdx: args.length > 0 && typeof args[0] === 'function' ? 0 : -1,
target: process,
};
});
});
Zone.__load_patch('handleUnhandledPromiseRejection', (global, Zone, api) => {
Zone[api.symbol('unhandledPromiseRejectionHandler')] =
findProcessPromiseRejectionHandler('unhandledRejection');
Zone[api.symbol('rejectionHandledHandler')] =
findProcessPromiseRejectionHandler('rejectionHandled');
// handle unhandled promise rejection
function findProcessPromiseRejectionHandler(evtName) {
return function (e) {
const eventTasks = findEventTasks(process, evtName);
eventTasks.forEach((eventTask) => {
// process has added unhandledrejection event listener
// trigger the event listener
if (evtName === 'unhandledRejection') {
eventTask.invoke(e.rejection, e.promise);
}
else if (evtName === 'rejectionHandled') {
eventTask.invoke(e.promise);
}
});
};
}
});
// Crypto
Zone.__load_patch('crypto', () => {
let crypto;
try {
crypto = require('crypto');
}
catch (err) { }
// use the generic patchMacroTask to patch crypto
if (crypto) {
const methodNames = ['randomBytes', 'pbkdf2'];
methodNames.forEach((name) => {
patchMacroTask(crypto, name, (self, args) => {
return {
name: 'crypto.' + name,
args: args,
cbIdx: args.length > 0 && typeof args[args.length - 1] === 'function' ? args.length - 1 : -1,
target: crypto,
};
});
});
}
});
Zone.__load_patch('console', (global, Zone) => {
const consoleMethods = [
'dir',
'log',
'info',
'error',
'warn',
'assert',
'debug',
'timeEnd',
'trace',
];
consoleMethods.forEach((m) => {
const originalMethod = (console[Zone.__symbol__(m)] = console[m]);
if (originalMethod) {
console[m] = function () {
const args = ArraySlice.call(arguments);
if (Zone.current === Zone.root) {
return originalMethod.apply(this, args);
}
else {
return Zone.root.run(originalMethod, this, args);
}
};
}
});
});
Zone.__load_patch('queueMicrotask', (global, Zone, api) => {
patchQueueMicrotask(global, api);
});
}
function loadZone() {
// if global['Zone'] already exists (maybe zone.js was already loaded or
// some other lib also registered a global object named Zone), we may need
// to throw an error, but sometimes user may not want this error.
// For example,
// we have two web pages, page1 includes zone.js, page2 doesn't.
// and the 1st time user load page1 and page2, everything work fine,
// but when user load page2 again, error occurs because global['Zone'] already exists.
// so we add a flag to let user choose whether to throw this error or not.
// By default, if existing Zone is from zone.js, we will not throw the error.
const global = globalThis;
const checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;
if (global['Zone'] && (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function')) {
throw new Error('Zone already loaded.');
}
// Initialize global `Zone` constant.
global['Zone'] ??= initZone();
return global['Zone'];
}
const Zone$1 = loadZone();
patchCommon(Zone$1);
patchBrowser(Zone$1);
patchNode(Zone$1);