zone-legacy.js

/**
* @license Angular v9.1.0-next.4+61.sha-e552591.with-local-changes
* (c) 2010-2020 Google LLC. https://angular.io/
* License: MIT
*/
(function (factory) {
    typeof define === 'function' && define.amd ? define(factory) :
        factory();
}((function () {
    'use strict';
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    /*
     * This is necessary for Chrome and Chrome mobile, to enable
     * things like redefining `createdCallback` on an element.
     */
    var zoneSymbol;
    var _defineProperty;
    var _getOwnPropertyDescriptor;
    var _create;
    var unconfigurablesKey;
    function propertyPatch() {
        zoneSymbol = Zone.__symbol__;
        _defineProperty = Object[zoneSymbol('defineProperty')] = Object.defineProperty;
        _getOwnPropertyDescriptor = Object[zoneSymbol('getOwnPropertyDescriptor')] =
            Object.getOwnPropertyDescriptor;
        _create = Object.create;
        unconfigurablesKey = zoneSymbol('unconfigurables');
        Object.defineProperty = function (obj, prop, desc) {
            if (isUnconfigurable(obj, prop)) {
                throw new TypeError('Cannot assign to read only property \'' + prop + '\' of ' + obj);
            }
            var originalConfigurableFlag = desc.configurable;
            if (prop !== 'prototype') {
                desc = rewriteDescriptor(obj, prop, desc);
            }
            return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
        };
        Object.defineProperties = function (obj, props) {
            Object.keys(props).forEach(function (prop) { Object.defineProperty(obj, prop, props[prop]); });
            return obj;
        };
        Object.create = function (obj, proto) {
            if (typeof proto === 'object' && !Object.isFrozen(proto)) {
                Object.keys(proto).forEach(function (prop) {
                    proto[prop] = rewriteDescriptor(obj, prop, proto[prop]);
                });
            }
            return _create(obj, proto);
        };
        Object.getOwnPropertyDescriptor = function (obj, prop) {
            var desc = _getOwnPropertyDescriptor(obj, prop);
            if (desc && isUnconfigurable(obj, prop)) {
                desc.configurable = false;
            }
            return desc;
        };
    }
    function _redefineProperty(obj, prop, desc) {
        var originalConfigurableFlag = desc.configurable;
        desc = rewriteDescriptor(obj, prop, desc);
        return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
    }
    function isUnconfigurable(obj, prop) {
        return obj && obj[unconfigurablesKey] && obj[unconfigurablesKey][prop];
    }
    function rewriteDescriptor(obj, prop, desc) {
        // issue-927, if the desc is frozen, don't try to change the desc
        if (!Object.isFrozen(desc)) {
            desc.configurable = true;
        }
        if (!desc.configurable) {
            // issue-927, if the obj is frozen, don't try to set the desc to obj
            if (!obj[unconfigurablesKey] && !Object.isFrozen(obj)) {
                _defineProperty(obj, unconfigurablesKey, { writable: true, value: {} });
            }
            if (obj[unconfigurablesKey]) {
                obj[unconfigurablesKey][prop] = true;
            }
        }
        return desc;
    }
    function _tryDefineProperty(obj, prop, desc, originalConfigurableFlag) {
        try {
            return _defineProperty(obj, prop, desc);
        }
        catch (error) {
            if (desc.configurable) {
                // In case of errors, when the configurable flag was likely set by rewriteDescriptor(), let's
                // retry with the original flag value
                if (typeof originalConfigurableFlag == 'undefined') {
                    delete desc.configurable;
                }
                else {
                    desc.configurable = originalConfigurableFlag;
                }
                try {
                    return _defineProperty(obj, prop, desc);
                }
                catch (error) {
                    var descJson = null;
                    try {
                        descJson = JSON.stringify(desc);
                    }
                    catch (error) {
                        descJson = desc.toString();
                    }
                    console.log("Attempting to configure '" + prop + "' with descriptor '" + descJson + "' on object '" + obj + "' and got error, giving up: " + error);
                }
            }
            else {
                throw error;
            }
        }
    }
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    function eventTargetLegacyPatch(_global, api) {
        var _a = api.getGlobalObjects(), eventNames = _a.eventNames, globalSources = _a.globalSources, zoneSymbolEventNames = _a.zoneSymbolEventNames, TRUE_STR = _a.TRUE_STR, FALSE_STR = _a.FALSE_STR, ZONE_SYMBOL_PREFIX = _a.ZONE_SYMBOL_PREFIX;
        var WTF_ISSUE_555 = 'Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video';
        var NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex,WebSocket'
            .split(',');
        var EVENT_TARGET = 'EventTarget';
        var apis = [];
        var isWtf = _global['wtf'];
        var WTF_ISSUE_555_ARRAY = WTF_ISSUE_555.split(',');
        if (isWtf) {
            // Workaround for: https://github.com/google/tracing-framework/issues/555
            apis = WTF_ISSUE_555_ARRAY.map(function (v) { return 'HTML' + v + 'Element'; }).concat(NO_EVENT_TARGET);
        }
        else if (_global[EVENT_TARGET]) {
            apis.push(EVENT_TARGET);
        }
        else {
            // Note: EventTarget is not available in all browsers,
            // if it's not available, we instead patch the APIs in the IDL that inherit from EventTarget
            apis = NO_EVENT_TARGET;
        }
        var isDisableIECheck = _global['__Zone_disable_IE_check'] || false;
        var isEnableCrossContextCheck = _global['__Zone_enable_cross_context_check'] || false;
        var ieOrEdge = api.isIEOrEdge();
        var ADD_EVENT_LISTENER_SOURCE = '.addEventListener:';
        var FUNCTION_WRAPPER = '[object FunctionWrapper]';
        var BROWSER_TOOLS = 'function __BROWSERTOOLS_CONSOLE_SAFEFUNC() { [native code] }';
        var pointerEventsMap = {
            'MSPointerCancel': 'pointercancel',
            'MSPointerDown': 'pointerdown',
            'MSPointerEnter': 'pointerenter',
            'MSPointerHover': 'pointerhover',
            'MSPointerLeave': 'pointerleave',
            'MSPointerMove': 'pointermove',
            'MSPointerOut': 'pointerout',
            'MSPointerOver': 'pointerover',
            'MSPointerUp': 'pointerup'
        };
        //  predefine all __zone_symbol__ + eventName + true/false string
        for (var i = 0; i < eventNames.length; i++) {
            var eventName = eventNames[i];
            var falseEventName = eventName + FALSE_STR;
            var trueEventName = eventName + TRUE_STR;
            var symbol = ZONE_SYMBOL_PREFIX + falseEventName;
            var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
            zoneSymbolEventNames[eventName] = {};
            zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
            zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
        }
        //  predefine all task.source string
        for (var i = 0; i < WTF_ISSUE_555_ARRAY.length; i++) {
            var target = WTF_ISSUE_555_ARRAY[i];
            var targets = globalSources[target] = {};
            for (var j = 0; j < eventNames.length; j++) {
                var eventName = eventNames[j];
                targets[eventName] = target + ADD_EVENT_LISTENER_SOURCE + eventName;
            }
        }
        var checkIEAndCrossContext = function (nativeDelegate, delegate, target, args) {
            if (!isDisableIECheck && ieOrEdge) {
                if (isEnableCrossContextCheck) {
                    try {
                        var testString = delegate.toString();
                        if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {
                            nativeDelegate.apply(target, args);
                            return false;
                        }
                    }
                    catch (error) {
                        nativeDelegate.apply(target, args);
                        return false;
                    }
                }
                else {
                    var testString = delegate.toString();
                    if ((testString === FUNCTION_WRAPPER || testString == BROWSER_TOOLS)) {
                        nativeDelegate.apply(target, args);
                        return false;
                    }
                }
            }
            else if (isEnableCrossContextCheck) {
                try {
                    delegate.toString();
                }
                catch (error) {
                    nativeDelegate.apply(target, args);
                    return false;
                }
            }
            return true;
        };
        var apiTypes = [];
        for (var i = 0; i < apis.length; i++) {
            var type = _global[apis[i]];
            apiTypes.push(type && type.prototype);
        }
        // vh is validateHandler to check event handler
        // is valid or not(for security check)
        api.patchEventTarget(_global, apiTypes, {
            vh: checkIEAndCrossContext,
            transferEventName: function (eventName) {
                var pointerEventName = pointerEventsMap[eventName];
                return pointerEventName || eventName;
            }
        });
        Zone[api.symbol('patchEventTarget')] = !!_global[EVENT_TARGET];
        return true;
    }
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    // we have to patch the instance since the proto is non-configurable
    function apply(api, _global) {
        var _a = api.getGlobalObjects(), ADD_EVENT_LISTENER_STR = _a.ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR = _a.REMOVE_EVENT_LISTENER_STR;
        var WS = _global.WebSocket;
        // On Safari window.EventTarget doesn't exist so need to patch WS add/removeEventListener
        // On older Chrome, no need since EventTarget was already patched
        if (!_global.EventTarget) {
            api.patchEventTarget(_global, [WS.prototype]);
        }
        _global.WebSocket = function (x, y) {
            var socket = arguments.length > 1 ? new WS(x, y) : new WS(x);
            var proxySocket;
            var proxySocketProto;
            // Safari 7.0 has non-configurable own 'onmessage' and friends properties on the socket instance
            var onmessageDesc = api.ObjectGetOwnPropertyDescriptor(socket, 'onmessage');
            if (onmessageDesc && onmessageDesc.configurable === false) {
                proxySocket = api.ObjectCreate(socket);
                // socket have own property descriptor 'onopen', 'onmessage', 'onclose', 'onerror'
                // but proxySocket not, so we will keep socket as prototype and pass it to
                // patchOnProperties method
                proxySocketProto = socket;
                [ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR, 'send', 'close'].forEach(function (propName) {
                    proxySocket[propName] = function () {
                        var args = api.ArraySlice.call(arguments);
                        if (propName === ADD_EVENT_LISTENER_STR || propName === REMOVE_EVENT_LISTENER_STR) {
                            var eventName = args.length > 0 ? args[0] : undefined;
                            if (eventName) {
                                var propertySymbol = Zone.__symbol__('ON_PROPERTY' + eventName);
                                socket[propertySymbol] = proxySocket[propertySymbol];
                            }
                        }
                        return socket[propName].apply(socket, args);
                    };
                });
            }
            else {
                // we can patch the real socket
                proxySocket = socket;
            }
            api.patchOnProperties(proxySocket, ['close', 'error', 'message', 'open'], proxySocketProto);
            return proxySocket;
        };
        var globalWebSocket = _global['WebSocket'];
        for (var prop in WS) {
            globalWebSocket[prop] = WS[prop];
        }
    }
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    function propertyDescriptorLegacyPatch(api, _global) {
        var _a = api.getGlobalObjects(), isNode = _a.isNode, isMix = _a.isMix;
        if (isNode && !isMix) {
            return;
        }
        if (!canPatchViaPropertyDescriptor(api, _global)) {
            var supportsWebSocket = typeof WebSocket !== 'undefined';
            // Safari, Android browsers (Jelly Bean)
            patchViaCapturingAllTheEvents(api);
            api.patchClass('XMLHttpRequest');
            if (supportsWebSocket) {
                apply(api, _global);
            }
            Zone[api.symbol('patchEvents')] = true;
        }
    }
    function canPatchViaPropertyDescriptor(api, _global) {
        var _a = api.getGlobalObjects(), isBrowser = _a.isBrowser, isMix = _a.isMix;
        if ((isBrowser || isMix) &&
            !api.ObjectGetOwnPropertyDescriptor(HTMLElement.prototype, 'onclick') &&
            typeof Element !== 'undefined') {
            // WebKit https://bugs.webkit.org/show_bug.cgi?id=134364
            // IDL interface attributes are not configurable
            var desc = api.ObjectGetOwnPropertyDescriptor(Element.prototype, 'onclick');
            if (desc && !desc.configurable)
                return false;
            // try to use onclick to detect whether we can patch via propertyDescriptor
            // because XMLHttpRequest is not available in service worker
            if (desc) {
                api.ObjectDefineProperty(Element.prototype, 'onclick', { enumerable: true, configurable: true, get: function () { return true; } });
                var div = document.createElement('div');
                var result = !!div.onclick;
                api.ObjectDefineProperty(Element.prototype, 'onclick', desc);
                return result;
            }
        }
        var XMLHttpRequest = _global['XMLHttpRequest'];
        if (!XMLHttpRequest) {
            // XMLHttpRequest is not available in service worker
            return false;
        }
        var ON_READY_STATE_CHANGE = 'onreadystatechange';
        var XMLHttpRequestPrototype = XMLHttpRequest.prototype;
        var xhrDesc = api.ObjectGetOwnPropertyDescriptor(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE);
        // add enumerable and configurable here because in opera
        // by default XMLHttpRequest.prototype.onreadystatechange is undefined
        // without adding enumerable and configurable will cause onreadystatechange
        // non-configurable
        // and if XMLHttpRequest.prototype.onreadystatechange is undefined,
        // we should set a real desc instead a fake one
        if (xhrDesc) {
            api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, { enumerable: true, configurable: true, get: function () { return true; } });
            var req = new XMLHttpRequest();
            var result = !!req.onreadystatechange;
            // restore original desc
            api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, xhrDesc || {});
            return result;
        }
        else {
            var SYMBOL_FAKE_ONREADYSTATECHANGE_1 = api.symbol('fake');
            api.ObjectDefineProperty(XMLHttpRequestPrototype, ON_READY_STATE_CHANGE, {
                enumerable: true,
                configurable: true,
                get: function () { return this[SYMBOL_FAKE_ONREADYSTATECHANGE_1]; },
                set: function (value) { this[SYMBOL_FAKE_ONREADYSTATECHANGE_1] = value; }
            });
            var req = new XMLHttpRequest();
            var detectFunc = function () { };
            req.onreadystatechange = detectFunc;
            var result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;
            req.onreadystatechange = null;
            return result;
        }
    }
    // Whenever any eventListener fires, we check the eventListener target and all parents
    // for `onwhatever` properties and replace them with zone-bound functions
    // - Chrome (for now)
    function patchViaCapturingAllTheEvents(api) {
        var eventNames = api.getGlobalObjects().eventNames;
        var unboundKey = api.symbol('unbound');
        var _loop_1 = function (i) {
            var property = eventNames[i];
            var onproperty = 'on' + property;
            self.addEventListener(property, function (event) {
                var elt = event.target, bound, source;
                if (elt) {
                    source = elt.constructor['name'] + '.' + onproperty;
                }
                else {
                    source = 'unknown.' + onproperty;
                }
                while (elt) {
                    if (elt[onproperty] && !elt[onproperty][unboundKey]) {
                        bound = api.wrapWithCurrentZone(elt[onproperty], source);
                        bound[unboundKey] = elt[onproperty];
                        elt[onproperty] = bound;
                    }
                    elt = elt.parentElement;
                }
            }, true);
        };
        for (var i = 0; i < eventNames.length; i++) {
            _loop_1(i);
        }
    }
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    function registerElementPatch(_global, api) {
        var _a = api.getGlobalObjects(), isBrowser = _a.isBrowser, isMix = _a.isMix;
        if ((!isBrowser && !isMix) || !('registerElement' in _global.document)) {
            return;
        }
        var callbacks = ['createdCallback', 'attachedCallback', 'detachedCallback', 'attributeChangedCallback'];
        api.patchCallbacks(api, document, 'Document', 'registerElement', callbacks);
    }
    /**
     * @license
     * Copyright Google Inc. All Rights Reserved.
     *
     * Use of this source code is governed by an MIT-style license that can be
     * found in the LICENSE file at https://angular.io/license
     */
    (function (_global) {
        var symbolPrefix = _global['__Zone_symbol_prefix'] || '__zone_symbol__';
        function __symbol__(name) { return symbolPrefix + name; }
        _global[__symbol__('legacyPatch')] = function () {
            var Zone = _global['Zone'];
            Zone.__load_patch('defineProperty', function (global, Zone, api) {
                api._redefineProperty = _redefineProperty;
                propertyPatch();
            });
            Zone.__load_patch('registerElement', function (global, Zone, api) {
                registerElementPatch(global, api);
            });
            Zone.__load_patch('EventTargetLegacy', function (global, Zone, api) {
                eventTargetLegacyPatch(global, api);
                propertyDescriptorLegacyPatch(api, global);
            });
        };
    })(typeof window !== 'undefined' ?
        window :
        typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {});
})));