/**
 * @license Angular v15.2.9
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */

import { ɵDomAdapter, ɵsetRootDomAdapter, ɵparseCookieValue, ɵgetDOM, DOCUMENT, ɵPLATFORM_BROWSER_ID, XhrFactory, CommonModule } from '@angular/common';
export { ɵgetDOM } from '@angular/common';
import * as i0 from '@angular/core';
import { InjectionToken, ApplicationInitStatus, APP_INITIALIZER, Injector, ɵglobal, Injectable, Inject, ViewEncapsulation, APP_ID, RendererStyleFlags2, ɵinternalCreateApplication, ErrorHandler, ɵsetDocument, PLATFORM_ID, PLATFORM_INITIALIZER, createPlatformFactory, platformCore, ɵTESTABILITY_GETTER, ɵTESTABILITY, Testability, NgZone, TestabilityRegistry, ɵINJECTOR_SCOPE, RendererFactory2, ApplicationModule, NgModule, Optional, SkipSelf, ɵɵinject, ApplicationRef, inject, ɵConsole, forwardRef, ɵXSS_SECURITY_URL, SecurityContext, ɵallowSanitizationBypassAndThrow, ɵunwrapSafeValue, ɵ_sanitizeUrl, ɵ_sanitizeHtml, ɵbypassSanitizationTrustHtml, ɵbypassSanitizationTrustStyle, ɵbypassSanitizationTrustScript, ɵbypassSanitizationTrustUrl, ɵbypassSanitizationTrustResourceUrl, Version } from '@angular/core';

/**
 * Provides DOM operations in any browser environment.
 *
 * @security Tread carefully! Interacting with the DOM directly is dangerous and
 * can introduce XSS risks.
 */
class GenericBrowserDomAdapter extends ɵDomAdapter {
    constructor() {
        super(...arguments);
        this.supportsDOMEvents = true;
    }
}

/**
 * A `DomAdapter` powered by full browser DOM APIs.
 *
 * @security Tread carefully! Interacting with the DOM directly is dangerous and
 * can introduce XSS risks.
 */
/* tslint:disable:requireParameterType no-console */
class BrowserDomAdapter extends GenericBrowserDomAdapter {
    static makeCurrent() {
        ɵsetRootDomAdapter(new BrowserDomAdapter());
    }
    onAndCancel(el, evt, listener) {
        el.addEventListener(evt, listener, false);
        // Needed to follow Dart's subscription semantic, until fix of
        // https://code.google.com/p/dart/issues/detail?id=17406
        return () => {
            el.removeEventListener(evt, listener, false);
        };
    }
    dispatchEvent(el, evt) {
        el.dispatchEvent(evt);
    }
    remove(node) {
        if (node.parentNode) {
            node.parentNode.removeChild(node);
        }
    }
    createElement(tagName, doc) {
        doc = doc || this.getDefaultDocument();
        return doc.createElement(tagName);
    }
    createHtmlDocument() {
        return document.implementation.createHTMLDocument('fakeTitle');
    }
    getDefaultDocument() {
        return document;
    }
    isElementNode(node) {
        return node.nodeType === Node.ELEMENT_NODE;
    }
    isShadowRoot(node) {
        return node instanceof DocumentFragment;
    }
    /** @deprecated No longer being used in Ivy code. To be removed in version 14. */
    getGlobalEventTarget(doc, target) {
        if (target === 'window') {
            return window;
        }
        if (target === 'document') {
            return doc;
        }
        if (target === 'body') {
            return doc.body;
        }
        return null;
    }
    getBaseHref(doc) {
        const href = getBaseElementHref();
        return href == null ? null : relativePath(href);
    }
    resetBaseElement() {
        baseElement = null;
    }
    getUserAgent() {
        return window.navigator.userAgent;
    }
    getCookie(name) {
        return ɵparseCookieValue(document.cookie, name);
    }
}
let baseElement = null;
function getBaseElementHref() {
    baseElement = baseElement || document.querySelector('base');
    return baseElement ? baseElement.getAttribute('href') : null;
}
// based on urlUtils.js in AngularJS 1
let urlParsingNode;
function relativePath(url) {
    urlParsingNode = urlParsingNode || document.createElement('a');
    urlParsingNode.setAttribute('href', url);
    const pathName = urlParsingNode.pathname;
    return pathName.charAt(0) === '/' ? pathName : `/${pathName}`;
}

/**
 * An id that identifies a particular application being bootstrapped, that should
 * match across the client/server boundary.
 */
const TRANSITION_ID = new InjectionToken('TRANSITION_ID');
function appInitializerFactory(transitionId, document, injector) {
    return () => {
        // Wait for all application initializers to be completed before removing the styles set by
        // the server.
        injector.get(ApplicationInitStatus).donePromise.then(() => {
            const dom = ɵgetDOM();
            const styles = document.querySelectorAll(`style[ng-transition="${transitionId}"]`);
            for (let i = 0; i < styles.length; i++) {
                dom.remove(styles[i]);
            }
        });
    };
}
const SERVER_TRANSITION_PROVIDERS = [
    {
        provide: APP_INITIALIZER,
        useFactory: appInitializerFactory,
        deps: [TRANSITION_ID, DOCUMENT, Injector],
        multi: true
    },
];

class BrowserGetTestability {
    addToWindow(registry) {
        ɵglobal['getAngularTestability'] = (elem, findInAncestors = true) => {
            const testability = registry.findTestabilityInTree(elem, findInAncestors);
            if (testability == null) {
                throw new Error('Could not find testability for element.');
            }
            return testability;
        };
        ɵglobal['getAllAngularTestabilities'] = () => registry.getAllTestabilities();
        ɵglobal['getAllAngularRootElements'] = () => registry.getAllRootElements();
        const whenAllStable = (callback /** TODO #9100 */) => {
            const testabilities = ɵglobal['getAllAngularTestabilities']();
            let count = testabilities.length;
            let didWork = false;
            const decrement = function (didWork_ /** TODO #9100 */) {
                didWork = didWork || didWork_;
                count--;
                if (count == 0) {
                    callback(didWork);
                }
            };
            testabilities.forEach(function (testability /** TODO #9100 */) {
                testability.whenStable(decrement);
            });
        };
        if (!ɵglobal['frameworkStabilizers']) {
            ɵglobal['frameworkStabilizers'] = [];
        }
        ɵglobal['frameworkStabilizers'].push(whenAllStable);
    }
    findTestabilityInTree(registry, elem, findInAncestors) {
        if (elem == null) {
            return null;
        }
        const t = registry.getTestability(elem);
        if (t != null) {
            return t;
        }
        else if (!findInAncestors) {
            return null;
        }
        if (ɵgetDOM().isShadowRoot(elem)) {
            return this.findTestabilityInTree(registry, elem.host, true);
        }
        return this.findTestabilityInTree(registry, elem.parentElement, true);
    }
}

/**
 * A factory for `HttpXhrBackend` that uses the `XMLHttpRequest` browser API.
 */
class BrowserXhr {
    build() {
        return new XMLHttpRequest();
    }
}
BrowserXhr.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserXhr, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
BrowserXhr.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserXhr });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserXhr, decorators: [{
            type: Injectable
        }] });

/**
 * The injection token for the event-manager plug-in service.
 *
 * @publicApi
 */
const EVENT_MANAGER_PLUGINS = new InjectionToken('EventManagerPlugins');
/**
 * An injectable service that provides event management for Angular
 * through a browser plug-in.
 *
 * @publicApi
 */
class EventManager {
    /**
     * Initializes an instance of the event-manager service.
     */
    constructor(plugins, _zone) {
        this._zone = _zone;
        this._eventNameToPlugin = new Map();
        plugins.forEach((plugin) => {
            plugin.manager = this;
        });
        this._plugins = plugins.slice().reverse();
    }
    /**
     * Registers a handler for a specific element and event.
     *
     * @param element The HTML element to receive event notifications.
     * @param eventName The name of the event to listen for.
     * @param handler A function to call when the notification occurs. Receives the
     * event object as an argument.
     * @returns  A callback function that can be used to remove the handler.
     */
    addEventListener(element, eventName, handler) {
        const plugin = this._findPluginFor(eventName);
        return plugin.addEventListener(element, eventName, handler);
    }
    /**
     * Registers a global handler for an event in a target view.
     *
     * @param target A target for global event notifications. One of "window", "document", or "body".
     * @param eventName The name of the event to listen for.
     * @param handler A function to call when the notification occurs. Receives the
     * event object as an argument.
     * @returns A callback function that can be used to remove the handler.
     * @deprecated No longer being used in Ivy code. To be removed in version 14.
     */
    addGlobalEventListener(target, eventName, handler) {
        const plugin = this._findPluginFor(eventName);
        return plugin.addGlobalEventListener(target, eventName, handler);
    }
    /**
     * Retrieves the compilation zone in which event listeners are registered.
     */
    getZone() {
        return this._zone;
    }
    /** @internal */
    _findPluginFor(eventName) {
        const plugin = this._eventNameToPlugin.get(eventName);
        if (plugin) {
            return plugin;
        }
        const plugins = this._plugins;
        for (let i = 0; i < plugins.length; i++) {
            const plugin = plugins[i];
            if (plugin.supports(eventName)) {
                this._eventNameToPlugin.set(eventName, plugin);
                return plugin;
            }
        }
        throw new Error(`No event manager plugin found for event ${eventName}`);
    }
}
EventManager.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: EventManager, deps: [{ token: EVENT_MANAGER_PLUGINS }, { token: i0.NgZone }], target: i0.ɵɵFactoryTarget.Injectable });
EventManager.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: EventManager });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: EventManager, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [EVENT_MANAGER_PLUGINS]
                }] }, { type: i0.NgZone }]; } });
class EventManagerPlugin {
    constructor(_doc) {
        this._doc = _doc;
    }
    addGlobalEventListener(element, eventName, handler) {
        const target = ɵgetDOM().getGlobalEventTarget(this._doc, element);
        if (!target) {
            throw new Error(`Unsupported event target ${target} for event ${eventName}`);
        }
        return this.addEventListener(target, eventName, handler);
    }
}

class SharedStylesHost {
    constructor() {
        this.usageCount = new Map();
    }
    addStyles(styles) {
        for (const style of styles) {
            const usageCount = this.changeUsageCount(style, 1);
            if (usageCount === 1) {
                this.onStyleAdded(style);
            }
        }
    }
    removeStyles(styles) {
        for (const style of styles) {
            const usageCount = this.changeUsageCount(style, -1);
            if (usageCount === 0) {
                this.onStyleRemoved(style);
            }
        }
    }
    onStyleRemoved(style) { }
    onStyleAdded(style) { }
    getAllStyles() {
        return this.usageCount.keys();
    }
    changeUsageCount(style, delta) {
        const map = this.usageCount;
        let usage = map.get(style) ?? 0;
        usage += delta;
        if (usage > 0) {
            map.set(style, usage);
        }
        else {
            map.delete(style);
        }
        return usage;
    }
    ngOnDestroy() {
        for (const style of this.getAllStyles()) {
            this.onStyleRemoved(style);
        }
        this.usageCount.clear();
    }
}
SharedStylesHost.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: SharedStylesHost, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
SharedStylesHost.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: SharedStylesHost });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: SharedStylesHost, decorators: [{
            type: Injectable
        }] });
class DomSharedStylesHost extends SharedStylesHost {
    constructor(doc) {
        super();
        this.doc = doc;
        // Maps all registered host nodes to a list of style nodes that have been added to the host node.
        this.styleRef = new Map();
        this.hostNodes = new Set();
        this.resetHostNodes();
    }
    onStyleAdded(style) {
        for (const host of this.hostNodes) {
            this.addStyleToHost(host, style);
        }
    }
    onStyleRemoved(style) {
        const styleRef = this.styleRef;
        const styleElements = styleRef.get(style);
        styleElements?.forEach(e => e.remove());
        styleRef.delete(style);
    }
    ngOnDestroy() {
        super.ngOnDestroy();
        this.styleRef.clear();
        this.resetHostNodes();
    }
    addHost(hostNode) {
        this.hostNodes.add(hostNode);
        for (const style of this.getAllStyles()) {
            this.addStyleToHost(hostNode, style);
        }
    }
    removeHost(hostNode) {
        this.hostNodes.delete(hostNode);
    }
    addStyleToHost(host, style) {
        const styleEl = this.doc.createElement('style');
        styleEl.textContent = style;
        host.appendChild(styleEl);
        const styleElRef = this.styleRef.get(style);
        if (styleElRef) {
            styleElRef.push(styleEl);
        }
        else {
            this.styleRef.set(style, [styleEl]);
        }
    }
    resetHostNodes() {
        const hostNodes = this.hostNodes;
        hostNodes.clear();
        // Re-add the head element back since this is the default host.
        hostNodes.add(this.doc.head);
    }
}
DomSharedStylesHost.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSharedStylesHost, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
DomSharedStylesHost.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSharedStylesHost });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSharedStylesHost, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });

const NAMESPACE_URIS = {
    'svg': 'http://www.w3.org/2000/svg',
    'xhtml': 'http://www.w3.org/1999/xhtml',
    'xlink': 'http://www.w3.org/1999/xlink',
    'xml': 'http://www.w3.org/XML/1998/namespace',
    'xmlns': 'http://www.w3.org/2000/xmlns/',
    'math': 'http://www.w3.org/1998/MathML/',
};
const COMPONENT_REGEX = /%COMP%/g;
const NG_DEV_MODE$1 = typeof ngDevMode === 'undefined' || !!ngDevMode;
const COMPONENT_VARIABLE = '%COMP%';
const HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;
const CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;
/**
 * The default value for the `REMOVE_STYLES_ON_COMPONENT_DESTROY` DI token.
 */
const REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT = false;
/**
 * A [DI token](guide/glossary#di-token "DI token definition") that indicates whether styles
 * of destroyed components should be removed from DOM.
 *
 * By default, the value is set to `false`. This will be changed in the next major version.
 * @publicApi
 */
const REMOVE_STYLES_ON_COMPONENT_DESTROY = new InjectionToken('RemoveStylesOnCompDestory', {
    providedIn: 'root',
    factory: () => REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT,
});
function shimContentAttribute(componentShortId) {
    return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId);
}
function shimHostAttribute(componentShortId) {
    return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId);
}
function flattenStyles(compId, styles) {
    // Cannot use `Infinity` as depth as `infinity` is not a number literal in TypeScript.
    // See: https://github.com/microsoft/TypeScript/issues/32277
    return styles.flat(100).map(s => s.replace(COMPONENT_REGEX, compId));
}
function decoratePreventDefault(eventHandler) {
    // `DebugNode.triggerEventHandler` needs to know if the listener was created with
    // decoratePreventDefault or is a listener added outside the Angular context so it can handle the
    // two differently. In the first case, the special '__ngUnwrap__' token is passed to the unwrap
    // the listener (see below).
    return (event) => {
        // Ivy uses '__ngUnwrap__' as a special token that allows us to unwrap the function
        // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`. The debug_node
        // can inspect the listener toString contents for the existence of this special token. Because
        // the token is a string literal, it is ensured to not be modified by compiled code.
        if (event === '__ngUnwrap__') {
            return eventHandler;
        }
        const allowDefaultBehavior = eventHandler(event);
        if (allowDefaultBehavior === false) {
            // TODO(tbosch): move preventDefault into event plugins...
            event.preventDefault();
            event.returnValue = false;
        }
        return undefined;
    };
}
class DomRendererFactory2 {
    constructor(eventManager, sharedStylesHost, appId, removeStylesOnCompDestory) {
        this.eventManager = eventManager;
        this.sharedStylesHost = sharedStylesHost;
        this.appId = appId;
        this.removeStylesOnCompDestory = removeStylesOnCompDestory;
        this.rendererByCompId = new Map();
        this.defaultRenderer = new DefaultDomRenderer2(eventManager);
    }
    createRenderer(element, type) {
        if (!element || !type) {
            return this.defaultRenderer;
        }
        const renderer = this.getOrCreateRenderer(element, type);
        // Renderers have different logic due to different encapsulation behaviours.
        // Ex: for emulated, an attribute is added to the element.
        if (renderer instanceof EmulatedEncapsulationDomRenderer2) {
            renderer.applyToHost(element);
        }
        else if (renderer instanceof NoneEncapsulationDomRenderer) {
            renderer.applyStyles();
        }
        return renderer;
    }
    getOrCreateRenderer(element, type) {
        const rendererByCompId = this.rendererByCompId;
        let renderer = rendererByCompId.get(type.id);
        if (!renderer) {
            const eventManager = this.eventManager;
            const sharedStylesHost = this.sharedStylesHost;
            const removeStylesOnCompDestory = this.removeStylesOnCompDestory;
            switch (type.encapsulation) {
                case ViewEncapsulation.Emulated:
                    renderer = new EmulatedEncapsulationDomRenderer2(eventManager, sharedStylesHost, type, this.appId, removeStylesOnCompDestory);
                    break;
                case ViewEncapsulation.ShadowDom:
                    return new ShadowDomRenderer(eventManager, sharedStylesHost, element, type);
                default:
                    renderer = new NoneEncapsulationDomRenderer(eventManager, sharedStylesHost, type, removeStylesOnCompDestory);
                    break;
            }
            renderer.onDestroy = () => rendererByCompId.delete(type.id);
            rendererByCompId.set(type.id, renderer);
        }
        return renderer;
    }
    ngOnDestroy() {
        this.rendererByCompId.clear();
    }
    begin() { }
    end() { }
}
DomRendererFactory2.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomRendererFactory2, deps: [{ token: EventManager }, { token: DomSharedStylesHost }, { token: APP_ID }, { token: REMOVE_STYLES_ON_COMPONENT_DESTROY }], target: i0.ɵɵFactoryTarget.Injectable });
DomRendererFactory2.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomRendererFactory2 });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomRendererFactory2, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: EventManager }, { type: DomSharedStylesHost }, { type: undefined, decorators: [{
                    type: Inject,
                    args: [APP_ID]
                }] }, { type: undefined, decorators: [{
                    type: Inject,
                    args: [REMOVE_STYLES_ON_COMPONENT_DESTROY]
                }] }]; } });
class DefaultDomRenderer2 {
    constructor(eventManager) {
        this.eventManager = eventManager;
        this.data = Object.create(null);
        this.destroyNode = null;
    }
    destroy() { }
    createElement(name, namespace) {
        if (namespace) {
            // TODO: `|| namespace` was added in
            // https://github.com/angular/angular/commit/2b9cc8503d48173492c29f5a271b61126104fbdb to
            // support how Ivy passed around the namespace URI rather than short name at the time. It did
            // not, however extend the support to other parts of the system (setAttribute, setAttribute,
            // and the ServerRenderer). We should decide what exactly the semantics for dealing with
            // namespaces should be and make it consistent.
            // Related issues:
            // https://github.com/angular/angular/issues/44028
            // https://github.com/angular/angular/issues/44883
            return document.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);
        }
        return document.createElement(name);
    }
    createComment(value) {
        return document.createComment(value);
    }
    createText(value) {
        return document.createTextNode(value);
    }
    appendChild(parent, newChild) {
        const targetParent = isTemplateNode(parent) ? parent.content : parent;
        targetParent.appendChild(newChild);
    }
    insertBefore(parent, newChild, refChild) {
        if (parent) {
            const targetParent = isTemplateNode(parent) ? parent.content : parent;
            targetParent.insertBefore(newChild, refChild);
        }
    }
    removeChild(parent, oldChild) {
        if (parent) {
            parent.removeChild(oldChild);
        }
    }
    selectRootElement(selectorOrNode, preserveContent) {
        let el = typeof selectorOrNode === 'string' ? document.querySelector(selectorOrNode) :
            selectorOrNode;
        if (!el) {
            throw new Error(`The selector "${selectorOrNode}" did not match any elements`);
        }
        if (!preserveContent) {
            el.textContent = '';
        }
        return el;
    }
    parentNode(node) {
        return node.parentNode;
    }
    nextSibling(node) {
        return node.nextSibling;
    }
    setAttribute(el, name, value, namespace) {
        if (namespace) {
            name = namespace + ':' + name;
            const namespaceUri = NAMESPACE_URIS[namespace];
            if (namespaceUri) {
                el.setAttributeNS(namespaceUri, name, value);
            }
            else {
                el.setAttribute(name, value);
            }
        }
        else {
            el.setAttribute(name, value);
        }
    }
    removeAttribute(el, name, namespace) {
        if (namespace) {
            const namespaceUri = NAMESPACE_URIS[namespace];
            if (namespaceUri) {
                el.removeAttributeNS(namespaceUri, name);
            }
            else {
                el.removeAttribute(`${namespace}:${name}`);
            }
        }
        else {
            el.removeAttribute(name);
        }
    }
    addClass(el, name) {
        el.classList.add(name);
    }
    removeClass(el, name) {
        el.classList.remove(name);
    }
    setStyle(el, style, value, flags) {
        if (flags & (RendererStyleFlags2.DashCase | RendererStyleFlags2.Important)) {
            el.style.setProperty(style, value, flags & RendererStyleFlags2.Important ? 'important' : '');
        }
        else {
            el.style[style] = value;
        }
    }
    removeStyle(el, style, flags) {
        if (flags & RendererStyleFlags2.DashCase) {
            // removeProperty has no effect when used on camelCased properties.
            el.style.removeProperty(style);
        }
        else {
            el.style[style] = '';
        }
    }
    setProperty(el, name, value) {
        NG_DEV_MODE$1 && checkNoSyntheticProp(name, 'property');
        el[name] = value;
    }
    setValue(node, value) {
        node.nodeValue = value;
    }
    listen(target, event, callback) {
        NG_DEV_MODE$1 && checkNoSyntheticProp(event, 'listener');
        if (typeof target === 'string') {
            return this.eventManager.addGlobalEventListener(target, event, decoratePreventDefault(callback));
        }
        return this.eventManager.addEventListener(target, event, decoratePreventDefault(callback));
    }
}
const AT_CHARCODE = (() => '@'.charCodeAt(0))();
function checkNoSyntheticProp(name, nameKind) {
    if (name.charCodeAt(0) === AT_CHARCODE) {
        throw new Error(`Unexpected synthetic ${nameKind} ${name} found. Please make sure that:
  - Either \`BrowserAnimationsModule\` or \`NoopAnimationsModule\` are imported in your application.
  - There is corresponding configuration for the animation named \`${name}\` defined in the \`animations\` field of the \`@Component\` decorator (see https://angular.io/api/core/Component#animations).`);
    }
}
function isTemplateNode(node) {
    return node.tagName === 'TEMPLATE' && node.content !== undefined;
}
class ShadowDomRenderer extends DefaultDomRenderer2 {
    constructor(eventManager, sharedStylesHost, hostEl, component) {
        super(eventManager);
        this.sharedStylesHost = sharedStylesHost;
        this.hostEl = hostEl;
        this.shadowRoot = hostEl.attachShadow({ mode: 'open' });
        this.sharedStylesHost.addHost(this.shadowRoot);
        const styles = flattenStyles(component.id, component.styles);
        for (const style of styles) {
            const styleEl = document.createElement('style');
            styleEl.textContent = style;
            this.shadowRoot.appendChild(styleEl);
        }
    }
    nodeOrShadowRoot(node) {
        return node === this.hostEl ? this.shadowRoot : node;
    }
    appendChild(parent, newChild) {
        return super.appendChild(this.nodeOrShadowRoot(parent), newChild);
    }
    insertBefore(parent, newChild, refChild) {
        return super.insertBefore(this.nodeOrShadowRoot(parent), newChild, refChild);
    }
    removeChild(parent, oldChild) {
        return super.removeChild(this.nodeOrShadowRoot(parent), oldChild);
    }
    parentNode(node) {
        return this.nodeOrShadowRoot(super.parentNode(this.nodeOrShadowRoot(node)));
    }
    destroy() {
        this.sharedStylesHost.removeHost(this.shadowRoot);
    }
}
class NoneEncapsulationDomRenderer extends DefaultDomRenderer2 {
    constructor(eventManager, sharedStylesHost, component, removeStylesOnCompDestory, compId = component.id) {
        super(eventManager);
        this.sharedStylesHost = sharedStylesHost;
        this.removeStylesOnCompDestory = removeStylesOnCompDestory;
        this.rendererUsageCount = 0;
        this.styles = flattenStyles(compId, component.styles);
    }
    applyStyles() {
        this.sharedStylesHost.addStyles(this.styles);
        this.rendererUsageCount++;
    }
    destroy() {
        if (!this.removeStylesOnCompDestory) {
            return;
        }
        this.sharedStylesHost.removeStyles(this.styles);
        this.rendererUsageCount--;
        if (this.rendererUsageCount === 0) {
            this.onDestroy?.();
        }
    }
}
class EmulatedEncapsulationDomRenderer2 extends NoneEncapsulationDomRenderer {
    constructor(eventManager, sharedStylesHost, component, appId, removeStylesOnCompDestory) {
        const compId = appId + '-' + component.id;
        super(eventManager, sharedStylesHost, component, removeStylesOnCompDestory, compId);
        this.contentAttr = shimContentAttribute(compId);
        this.hostAttr = shimHostAttribute(compId);
    }
    applyToHost(element) {
        this.applyStyles();
        this.setAttribute(element, this.hostAttr, '');
    }
    createElement(parent, name) {
        const el = super.createElement(parent, name);
        super.setAttribute(el, this.contentAttr, '');
        return el;
    }
}

class DomEventsPlugin extends EventManagerPlugin {
    constructor(doc) {
        super(doc);
    }
    // This plugin should come last in the list of plugins, because it accepts all
    // events.
    supports(eventName) {
        return true;
    }
    addEventListener(element, eventName, handler) {
        element.addEventListener(eventName, handler, false);
        return () => this.removeEventListener(element, eventName, handler);
    }
    removeEventListener(target, eventName, callback) {
        return target.removeEventListener(eventName, callback);
    }
}
DomEventsPlugin.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomEventsPlugin, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
DomEventsPlugin.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomEventsPlugin });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomEventsPlugin, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });

/**
 * Defines supported modifiers for key events.
 */
const MODIFIER_KEYS = ['alt', 'control', 'meta', 'shift'];
// The following values are here for cross-browser compatibility and to match the W3C standard
// cf https://www.w3.org/TR/DOM-Level-3-Events-key/
const _keyMap = {
    '\b': 'Backspace',
    '\t': 'Tab',
    '\x7F': 'Delete',
    '\x1B': 'Escape',
    'Del': 'Delete',
    'Esc': 'Escape',
    'Left': 'ArrowLeft',
    'Right': 'ArrowRight',
    'Up': 'ArrowUp',
    'Down': 'ArrowDown',
    'Menu': 'ContextMenu',
    'Scroll': 'ScrollLock',
    'Win': 'OS'
};
/**
 * Retrieves modifiers from key-event objects.
 */
const MODIFIER_KEY_GETTERS = {
    'alt': (event) => event.altKey,
    'control': (event) => event.ctrlKey,
    'meta': (event) => event.metaKey,
    'shift': (event) => event.shiftKey
};
/**
 * @publicApi
 * A browser plug-in that provides support for handling of key events in Angular.
 */
class KeyEventsPlugin extends EventManagerPlugin {
    /**
     * Initializes an instance of the browser plug-in.
     * @param doc The document in which key events will be detected.
     */
    constructor(doc) {
        super(doc);
    }
    /**
     * Reports whether a named key event is supported.
     * @param eventName The event name to query.
     * @return True if the named key event is supported.
     */
    supports(eventName) {
        return KeyEventsPlugin.parseEventName(eventName) != null;
    }
    /**
     * Registers a handler for a specific element and key event.
     * @param element The HTML element to receive event notifications.
     * @param eventName The name of the key event to listen for.
     * @param handler A function to call when the notification occurs. Receives the
     * event object as an argument.
     * @returns The key event that was registered.
     */
    addEventListener(element, eventName, handler) {
        const parsedEvent = KeyEventsPlugin.parseEventName(eventName);
        const outsideHandler = KeyEventsPlugin.eventCallback(parsedEvent['fullKey'], handler, this.manager.getZone());
        return this.manager.getZone().runOutsideAngular(() => {
            return ɵgetDOM().onAndCancel(element, parsedEvent['domEventName'], outsideHandler);
        });
    }
    /**
     * Parses the user provided full keyboard event definition and normalizes it for
     * later internal use. It ensures the string is all lowercase, converts special
     * characters to a standard spelling, and orders all the values consistently.
     *
     * @param eventName The name of the key event to listen for.
     * @returns an object with the full, normalized string, and the dom event name
     * or null in the case when the event doesn't match a keyboard event.
     */
    static parseEventName(eventName) {
        const parts = eventName.toLowerCase().split('.');
        const domEventName = parts.shift();
        if ((parts.length === 0) || !(domEventName === 'keydown' || domEventName === 'keyup')) {
            return null;
        }
        const key = KeyEventsPlugin._normalizeKey(parts.pop());
        let fullKey = '';
        let codeIX = parts.indexOf('code');
        if (codeIX > -1) {
            parts.splice(codeIX, 1);
            fullKey = 'code.';
        }
        MODIFIER_KEYS.forEach(modifierName => {
            const index = parts.indexOf(modifierName);
            if (index > -1) {
                parts.splice(index, 1);
                fullKey += modifierName + '.';
            }
        });
        fullKey += key;
        if (parts.length != 0 || key.length === 0) {
            // returning null instead of throwing to let another plugin process the event
            return null;
        }
        // NOTE: Please don't rewrite this as so, as it will break JSCompiler property renaming.
        //       The code must remain in the `result['domEventName']` form.
        // return {domEventName, fullKey};
        const result = {};
        result['domEventName'] = domEventName;
        result['fullKey'] = fullKey;
        return result;
    }
    /**
     * Determines whether the actual keys pressed match the configured key code string.
     * The `fullKeyCode` event is normalized in the `parseEventName` method when the
     * event is attached to the DOM during the `addEventListener` call. This is unseen
     * by the end user and is normalized for internal consistency and parsing.
     *
     * @param event The keyboard event.
     * @param fullKeyCode The normalized user defined expected key event string
     * @returns boolean.
     */
    static matchEventFullKeyCode(event, fullKeyCode) {
        let keycode = _keyMap[event.key] || event.key;
        let key = '';
        if (fullKeyCode.indexOf('code.') > -1) {
            keycode = event.code;
            key = 'code.';
        }
        // the keycode could be unidentified so we have to check here
        if (keycode == null || !keycode)
            return false;
        keycode = keycode.toLowerCase();
        if (keycode === ' ') {
            keycode = 'space'; // for readability
        }
        else if (keycode === '.') {
            keycode = 'dot'; // because '.' is used as a separator in event names
        }
        MODIFIER_KEYS.forEach(modifierName => {
            if (modifierName !== keycode) {
                const modifierGetter = MODIFIER_KEY_GETTERS[modifierName];
                if (modifierGetter(event)) {
                    key += modifierName + '.';
                }
            }
        });
        key += keycode;
        return key === fullKeyCode;
    }
    /**
     * Configures a handler callback for a key event.
     * @param fullKey The event name that combines all simultaneous keystrokes.
     * @param handler The function that responds to the key event.
     * @param zone The zone in which the event occurred.
     * @returns A callback function.
     */
    static eventCallback(fullKey, handler, zone) {
        return (event) => {
            if (KeyEventsPlugin.matchEventFullKeyCode(event, fullKey)) {
                zone.runGuarded(() => handler(event));
            }
        };
    }
    /** @internal */
    static _normalizeKey(keyName) {
        // TODO: switch to a Map if the mapping grows too much
        switch (keyName) {
            case 'esc':
                return 'escape';
            default:
                return keyName;
        }
    }
}
KeyEventsPlugin.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: KeyEventsPlugin, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
KeyEventsPlugin.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: KeyEventsPlugin });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: KeyEventsPlugin, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });

const NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode;
/**
 * Bootstraps an instance of an Angular application and renders a standalone component as the
 * application's root component. More information about standalone components can be found in [this
 * guide](guide/standalone-components).
 *
 * @usageNotes
 * The root component passed into this function *must* be a standalone one (should have the
 * `standalone: true` flag in the `@Component` decorator config).
 *
 * ```typescript
 * @Component({
 *   standalone: true,
 *   template: 'Hello world!'
 * })
 * class RootComponent {}
 *
 * const appRef: ApplicationRef = await bootstrapApplication(RootComponent);
 * ```
 *
 * You can add the list of providers that should be available in the application injector by
 * specifying the `providers` field in an object passed as the second argument:
 *
 * ```typescript
 * await bootstrapApplication(RootComponent, {
 *   providers: [
 *     {provide: BACKEND_URL, useValue: 'https://yourdomain.com/api'}
 *   ]
 * });
 * ```
 *
 * The `importProvidersFrom` helper method can be used to collect all providers from any
 * existing NgModule (and transitively from all NgModules that it imports):
 *
 * ```typescript
 * await bootstrapApplication(RootComponent, {
 *   providers: [
 *     importProvidersFrom(SomeNgModule)
 *   ]
 * });
 * ```
 *
 * Note: the `bootstrapApplication` method doesn't include [Testability](api/core/Testability) by
 * default. You can add [Testability](api/core/Testability) by getting the list of necessary
 * providers using `provideProtractorTestingSupport()` function and adding them into the `providers`
 * array, for example:
 *
 * ```typescript
 * import {provideProtractorTestingSupport} from '@angular/platform-browser';
 *
 * await bootstrapApplication(RootComponent, {providers: [provideProtractorTestingSupport()]});
 * ```
 *
 * @param rootComponent A reference to a standalone component that should be rendered.
 * @param options Extra configuration for the bootstrap operation, see `ApplicationConfig` for
 *     additional info.
 * @returns A promise that returns an `ApplicationRef` instance once resolved.
 *
 * @publicApi
 */
function bootstrapApplication(rootComponent, options) {
    return ɵinternalCreateApplication({ rootComponent, ...createProvidersConfig(options) });
}
/**
 * Create an instance of an Angular application without bootstrapping any components. This is useful
 * for the situation where one wants to decouple application environment creation (a platform and
 * associated injectors) from rendering components on a screen. Components can be subsequently
 * bootstrapped on the returned `ApplicationRef`.
 *
 * @param options Extra configuration for the application environment, see `ApplicationConfig` for
 *     additional info.
 * @returns A promise that returns an `ApplicationRef` instance once resolved.
 *
 * @publicApi
 */
function createApplication(options) {
    return ɵinternalCreateApplication(createProvidersConfig(options));
}
function createProvidersConfig(options) {
    return {
        appProviders: [
            ...BROWSER_MODULE_PROVIDERS,
            ...(options?.providers ?? []),
        ],
        platformProviders: INTERNAL_BROWSER_PLATFORM_PROVIDERS
    };
}
/**
 * Returns a set of providers required to setup [Testability](api/core/Testability) for an
 * application bootstrapped using the `bootstrapApplication` function. The set of providers is
 * needed to support testing an application with Protractor (which relies on the Testability APIs
 * to be present).
 *
 * @returns An array of providers required to setup Testability for an application and make it
 *     available for testing using Protractor.
 *
 * @publicApi
 */
function provideProtractorTestingSupport() {
    // Return a copy to prevent changes to the original array in case any in-place
    // alterations are performed to the `provideProtractorTestingSupport` call results in app code.
    return [...TESTABILITY_PROVIDERS];
}
function initDomAdapter() {
    BrowserDomAdapter.makeCurrent();
}
function errorHandler() {
    return new ErrorHandler();
}
function _document() {
    // Tell ivy about the global document
    ɵsetDocument(document);
    return document;
}
const INTERNAL_BROWSER_PLATFORM_PROVIDERS = [
    { provide: PLATFORM_ID, useValue: ɵPLATFORM_BROWSER_ID },
    { provide: PLATFORM_INITIALIZER, useValue: initDomAdapter, multi: true },
    { provide: DOCUMENT, useFactory: _document, deps: [] },
];
/**
 * A factory function that returns a `PlatformRef` instance associated with browser service
 * providers.
 *
 * @publicApi
 */
const platformBrowser = createPlatformFactory(platformCore, 'browser', INTERNAL_BROWSER_PLATFORM_PROVIDERS);
/**
 * Internal marker to signal whether providers from the `BrowserModule` are already present in DI.
 * This is needed to avoid loading `BrowserModule` providers twice. We can't rely on the
 * `BrowserModule` presence itself, since the standalone-based bootstrap just imports
 * `BrowserModule` providers without referencing the module itself.
 */
const BROWSER_MODULE_PROVIDERS_MARKER = new InjectionToken(NG_DEV_MODE ? 'BrowserModule Providers Marker' : '');
const TESTABILITY_PROVIDERS = [
    {
        provide: ɵTESTABILITY_GETTER,
        useClass: BrowserGetTestability,
        deps: [],
    },
    {
        provide: ɵTESTABILITY,
        useClass: Testability,
        deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]
    },
    {
        provide: Testability,
        useClass: Testability,
        deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]
    }
];
const BROWSER_MODULE_PROVIDERS = [
    { provide: ɵINJECTOR_SCOPE, useValue: 'root' },
    { provide: ErrorHandler, useFactory: errorHandler, deps: [] }, {
        provide: EVENT_MANAGER_PLUGINS,
        useClass: DomEventsPlugin,
        multi: true,
        deps: [DOCUMENT, NgZone, PLATFORM_ID]
    },
    { provide: EVENT_MANAGER_PLUGINS, useClass: KeyEventsPlugin, multi: true, deps: [DOCUMENT] }, {
        provide: DomRendererFactory2,
        useClass: DomRendererFactory2,
        deps: [EventManager, DomSharedStylesHost, APP_ID, REMOVE_STYLES_ON_COMPONENT_DESTROY]
    },
    { provide: RendererFactory2, useExisting: DomRendererFactory2 },
    { provide: SharedStylesHost, useExisting: DomSharedStylesHost },
    { provide: DomSharedStylesHost, useClass: DomSharedStylesHost, deps: [DOCUMENT] },
    { provide: EventManager, useClass: EventManager, deps: [EVENT_MANAGER_PLUGINS, NgZone] },
    { provide: XhrFactory, useClass: BrowserXhr, deps: [] },
    NG_DEV_MODE ? { provide: BROWSER_MODULE_PROVIDERS_MARKER, useValue: true } : []
];
/**
 * Exports required infrastructure for all Angular apps.
 * Included by default in all Angular apps created with the CLI
 * `new` command.
 * Re-exports `CommonModule` and `ApplicationModule`, making their
 * exports and providers available to all apps.
 *
 * @publicApi
 */
class BrowserModule {
    constructor(providersAlreadyPresent) {
        if (NG_DEV_MODE && providersAlreadyPresent) {
            throw new Error(`Providers from the \`BrowserModule\` have already been loaded. If you need access ` +
                `to common directives such as NgIf and NgFor, import the \`CommonModule\` instead.`);
        }
    }
    /**
     * Configures a browser-based app to transition from a server-rendered app, if
     * one is present on the page.
     *
     * @param params An object containing an identifier for the app to transition.
     * The ID must match between the client and server versions of the app.
     * @returns The reconfigured `BrowserModule` to import into the app's root `AppModule`.
     */
    static withServerTransition(params) {
        return {
            ngModule: BrowserModule,
            providers: [
                { provide: APP_ID, useValue: params.appId },
                { provide: TRANSITION_ID, useExisting: APP_ID },
                SERVER_TRANSITION_PROVIDERS,
            ],
        };
    }
}
BrowserModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserModule, deps: [{ token: BROWSER_MODULE_PROVIDERS_MARKER, optional: true, skipSelf: true }], target: i0.ɵɵFactoryTarget.NgModule });
BrowserModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "15.2.9", ngImport: i0, type: BrowserModule, exports: [CommonModule, ApplicationModule] });
BrowserModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserModule, providers: [
        ...BROWSER_MODULE_PROVIDERS,
        ...TESTABILITY_PROVIDERS
    ], imports: [CommonModule, ApplicationModule] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserModule, decorators: [{
            type: NgModule,
            args: [{
                    providers: [
                        ...BROWSER_MODULE_PROVIDERS,
                        ...TESTABILITY_PROVIDERS
                    ],
                    exports: [CommonModule, ApplicationModule],
                }]
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Optional
                }, {
                    type: SkipSelf
                }, {
                    type: Inject,
                    args: [BROWSER_MODULE_PROVIDERS_MARKER]
                }] }]; } });

/**
 * Factory to create a `Meta` service instance for the current DOM document.
 */
function createMeta() {
    return new Meta(ɵɵinject(DOCUMENT));
}
/**
 * A service for managing HTML `<meta>` tags.
 *
 * Properties of the `MetaDefinition` object match the attributes of the
 * HTML `<meta>` tag. These tags define document metadata that is important for
 * things like configuring a Content Security Policy, defining browser compatibility
 * and security settings, setting HTTP Headers, defining rich content for social sharing,
 * and Search Engine Optimization (SEO).
 *
 * To identify specific `<meta>` tags in a document, use an attribute selection
 * string in the format `"tag_attribute='value string'"`.
 * For example, an `attrSelector` value of `"name='description'"` matches a tag
 * whose `name` attribute has the value `"description"`.
 * Selectors are used with the `querySelector()` Document method,
 * in the format `meta[{attrSelector}]`.
 *
 * @see [HTML meta tag](https://developer.mozilla.org/docs/Web/HTML/Element/meta)
 * @see [Document.querySelector()](https://developer.mozilla.org/docs/Web/API/Document/querySelector)
 *
 *
 * @publicApi
 */
class Meta {
    constructor(_doc) {
        this._doc = _doc;
        this._dom = ɵgetDOM();
    }
    /**
     * Retrieves or creates a specific `<meta>` tag element in the current HTML document.
     * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute
     * values in the provided tag definition, and verifies that all other attribute values are equal.
     * If an existing element is found, it is returned and is not modified in any way.
     * @param tag The definition of a `<meta>` element to match or create.
     * @param forceCreation True to create a new element without checking whether one already exists.
     * @returns The existing element with the same attributes and values if found,
     * the new element if no match is found, or `null` if the tag parameter is not defined.
     */
    addTag(tag, forceCreation = false) {
        if (!tag)
            return null;
        return this._getOrCreateElement(tag, forceCreation);
    }
    /**
     * Retrieves or creates a set of `<meta>` tag elements in the current HTML document.
     * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute
     * values in the provided tag definition, and verifies that all other attribute values are equal.
     * @param tags An array of tag definitions to match or create.
     * @param forceCreation True to create new elements without checking whether they already exist.
     * @returns The matching elements if found, or the new elements.
     */
    addTags(tags, forceCreation = false) {
        if (!tags)
            return [];
        return tags.reduce((result, tag) => {
            if (tag) {
                result.push(this._getOrCreateElement(tag, forceCreation));
            }
            return result;
        }, []);
    }
    /**
     * Retrieves a `<meta>` tag element in the current HTML document.
     * @param attrSelector The tag attribute and value to match against, in the format
     * `"tag_attribute='value string'"`.
     * @returns The matching element, if any.
     */
    getTag(attrSelector) {
        if (!attrSelector)
            return null;
        return this._doc.querySelector(`meta[${attrSelector}]`) || null;
    }
    /**
     * Retrieves a set of `<meta>` tag elements in the current HTML document.
     * @param attrSelector The tag attribute and value to match against, in the format
     * `"tag_attribute='value string'"`.
     * @returns The matching elements, if any.
     */
    getTags(attrSelector) {
        if (!attrSelector)
            return [];
        const list /*NodeList*/ = this._doc.querySelectorAll(`meta[${attrSelector}]`);
        return list ? [].slice.call(list) : [];
    }
    /**
     * Modifies an existing `<meta>` tag element in the current HTML document.
     * @param tag The tag description with which to replace the existing tag content.
     * @param selector A tag attribute and value to match against, to identify
     * an existing tag. A string in the format `"tag_attribute=`value string`"`.
     * If not supplied, matches a tag with the same `name` or `property` attribute value as the
     * replacement tag.
     * @return The modified element.
     */
    updateTag(tag, selector) {
        if (!tag)
            return null;
        selector = selector || this._parseSelector(tag);
        const meta = this.getTag(selector);
        if (meta) {
            return this._setMetaElementAttributes(tag, meta);
        }
        return this._getOrCreateElement(tag, true);
    }
    /**
     * Removes an existing `<meta>` tag element from the current HTML document.
     * @param attrSelector A tag attribute and value to match against, to identify
     * an existing tag. A string in the format `"tag_attribute=`value string`"`.
     */
    removeTag(attrSelector) {
        this.removeTagElement(this.getTag(attrSelector));
    }
    /**
     * Removes an existing `<meta>` tag element from the current HTML document.
     * @param meta The tag definition to match against to identify an existing tag.
     */
    removeTagElement(meta) {
        if (meta) {
            this._dom.remove(meta);
        }
    }
    _getOrCreateElement(meta, forceCreation = false) {
        if (!forceCreation) {
            const selector = this._parseSelector(meta);
            // It's allowed to have multiple elements with the same name so it's not enough to
            // just check that element with the same name already present on the page. We also need to
            // check if element has tag attributes
            const elem = this.getTags(selector).filter(elem => this._containsAttributes(meta, elem))[0];
            if (elem !== undefined)
                return elem;
        }
        const element = this._dom.createElement('meta');
        this._setMetaElementAttributes(meta, element);
        const head = this._doc.getElementsByTagName('head')[0];
        head.appendChild(element);
        return element;
    }
    _setMetaElementAttributes(tag, el) {
        Object.keys(tag).forEach((prop) => el.setAttribute(this._getMetaKeyMap(prop), tag[prop]));
        return el;
    }
    _parseSelector(tag) {
        const attr = tag.name ? 'name' : 'property';
        return `${attr}="${tag[attr]}"`;
    }
    _containsAttributes(tag, elem) {
        return Object.keys(tag).every((key) => elem.getAttribute(this._getMetaKeyMap(key)) === tag[key]);
    }
    _getMetaKeyMap(prop) {
        return META_KEYS_MAP[prop] || prop;
    }
}
Meta.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Meta, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
Meta.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Meta, providedIn: 'root', useFactory: createMeta, deps: [] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Meta, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root', useFactory: createMeta, deps: [] }]
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });
/**
 * Mapping for MetaDefinition properties with their correct meta attribute names
 */
const META_KEYS_MAP = {
    httpEquiv: 'http-equiv'
};

/**
 * Factory to create Title service.
 */
function createTitle() {
    return new Title(ɵɵinject(DOCUMENT));
}
/**
 * A service that can be used to get and set the title of a current HTML document.
 *
 * Since an Angular application can't be bootstrapped on the entire HTML document (`<html>` tag)
 * it is not possible to bind to the `text` property of the `HTMLTitleElement` elements
 * (representing the `<title>` tag). Instead, this service can be used to set and get the current
 * title value.
 *
 * @publicApi
 */
class Title {
    constructor(_doc) {
        this._doc = _doc;
    }
    /**
     * Get the title of the current HTML document.
     */
    getTitle() {
        return this._doc.title;
    }
    /**
     * Set the title of the current HTML document.
     * @param newTitle
     */
    setTitle(newTitle) {
        this._doc.title = newTitle || '';
    }
}
Title.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Title, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
Title.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Title, providedIn: 'root', useFactory: createTitle, deps: [] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: Title, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root', useFactory: createTitle, deps: [] }]
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });

/**
 * Exports the value under a given `name` in the global property `ng`. For example `ng.probe` if
 * `name` is `'probe'`.
 * @param name Name under which it will be exported. Keep in mind this will be a property of the
 * global `ng` object.
 * @param value The value to export.
 */
function exportNgVar(name, value) {
    if (typeof COMPILED === 'undefined' || !COMPILED) {
        // Note: we can't export `ng` when using closure enhanced optimization as:
        // - closure declares globals itself for minified names, which sometimes clobber our `ng` global
        // - we can't declare a closure extern as the namespace `ng` is already used within Google
        //   for typings for angularJS (via `goog.provide('ng....')`).
        const ng = ɵglobal['ng'] = ɵglobal['ng'] || {};
        ng[name] = value;
    }
}

const win = typeof window !== 'undefined' && window || {};

class ChangeDetectionPerfRecord {
    constructor(msPerTick, numTicks) {
        this.msPerTick = msPerTick;
        this.numTicks = numTicks;
    }
}
/**
 * Entry point for all Angular profiling-related debug tools. This object
 * corresponds to the `ng.profiler` in the dev console.
 */
class AngularProfiler {
    constructor(ref) {
        this.appRef = ref.injector.get(ApplicationRef);
    }
    // tslint:disable:no-console
    /**
     * Exercises change detection in a loop and then prints the average amount of
     * time in milliseconds how long a single round of change detection takes for
     * the current state of the UI. It runs a minimum of 5 rounds for a minimum
     * of 500 milliseconds.
     *
     * Optionally, a user may pass a `config` parameter containing a map of
     * options. Supported options are:
     *
     * `record` (boolean) - causes the profiler to record a CPU profile while
     * it exercises the change detector. Example:
     *
     * ```
     * ng.profiler.timeChangeDetection({record: true})
     * ```
     */
    timeChangeDetection(config) {
        const record = config && config['record'];
        const profileName = 'Change Detection';
        // Profiler is not available in Android browsers without dev tools opened
        const isProfilerAvailable = win.console.profile != null;
        if (record && isProfilerAvailable) {
            win.console.profile(profileName);
        }
        const start = performanceNow();
        let numTicks = 0;
        while (numTicks < 5 || (performanceNow() - start) < 500) {
            this.appRef.tick();
            numTicks++;
        }
        const end = performanceNow();
        if (record && isProfilerAvailable) {
            win.console.profileEnd(profileName);
        }
        const msPerTick = (end - start) / numTicks;
        win.console.log(`ran ${numTicks} change detection cycles`);
        win.console.log(`${msPerTick.toFixed(2)} ms per check`);
        return new ChangeDetectionPerfRecord(msPerTick, numTicks);
    }
}
function performanceNow() {
    return win.performance && win.performance.now ? win.performance.now() :
        new Date().getTime();
}

const PROFILER_GLOBAL_NAME = 'profiler';
/**
 * Enabled Angular debug tools that are accessible via your browser's
 * developer console.
 *
 * Usage:
 *
 * 1. Open developer console (e.g. in Chrome Ctrl + Shift + j)
 * 1. Type `ng.` (usually the console will show auto-complete suggestion)
 * 1. Try the change detection profiler `ng.profiler.timeChangeDetection()`
 *    then hit Enter.
 *
 * @publicApi
 */
function enableDebugTools(ref) {
    exportNgVar(PROFILER_GLOBAL_NAME, new AngularProfiler(ref));
    return ref;
}
/**
 * Disables Angular tools.
 *
 * @publicApi
 */
function disableDebugTools() {
    exportNgVar(PROFILER_GLOBAL_NAME, null);
}

function escapeHtml(text) {
    const escapedText = {
        '&': '&a;',
        '"': '&q;',
        '\'': '&s;',
        '<': '&l;',
        '>': '&g;',
    };
    return text.replace(/[&"'<>]/g, s => escapedText[s]);
}
function unescapeHtml(text) {
    const unescapedText = {
        '&a;': '&',
        '&q;': '"',
        '&s;': '\'',
        '&l;': '<',
        '&g;': '>',
    };
    return text.replace(/&[^;]+;/g, s => unescapedText[s]);
}
/**
 * Create a `StateKey<T>` that can be used to store value of type T with `TransferState`.
 *
 * Example:
 *
 * ```
 * const COUNTER_KEY = makeStateKey<number>('counter');
 * let value = 10;
 *
 * transferState.set(COUNTER_KEY, value);
 * ```
 *
 * @publicApi
 */
function makeStateKey(key) {
    return key;
}
/**
 * A key value store that is transferred from the application on the server side to the application
 * on the client side.
 *
 * The `TransferState` is available as an injectable token.
 * On the client, just inject this token using DI and use it, it will be lazily initialized.
 * On the server it's already included if `renderApplication` function is used. Otherwise, import
 * the `ServerTransferStateModule` module to make the `TransferState` available.
 *
 * The values in the store are serialized/deserialized using JSON.stringify/JSON.parse. So only
 * boolean, number, string, null and non-class objects will be serialized and deserialized in a
 * non-lossy manner.
 *
 * @publicApi
 */
class TransferState {
    constructor() {
        this.store = {};
        this.onSerializeCallbacks = {};
        this.store = retrieveTransferredState(inject(DOCUMENT), inject(APP_ID));
    }
    /**
     * Get the value corresponding to a key. Return `defaultValue` if key is not found.
     */
    get(key, defaultValue) {
        return this.store[key] !== undefined ? this.store[key] : defaultValue;
    }
    /**
     * Set the value corresponding to a key.
     */
    set(key, value) {
        this.store[key] = value;
    }
    /**
     * Remove a key from the store.
     */
    remove(key) {
        delete this.store[key];
    }
    /**
     * Test whether a key exists in the store.
     */
    hasKey(key) {
        return this.store.hasOwnProperty(key);
    }
    /**
     * Indicates whether the state is empty.
     */
    get isEmpty() {
        return Object.keys(this.store).length === 0;
    }
    /**
     * Register a callback to provide the value for a key when `toJson` is called.
     */
    onSerialize(key, callback) {
        this.onSerializeCallbacks[key] = callback;
    }
    /**
     * Serialize the current state of the store to JSON.
     */
    toJson() {
        // Call the onSerialize callbacks and put those values into the store.
        for (const key in this.onSerializeCallbacks) {
            if (this.onSerializeCallbacks.hasOwnProperty(key)) {
                try {
                    this.store[key] = this.onSerializeCallbacks[key]();
                }
                catch (e) {
                    console.warn('Exception in onSerialize callback: ', e);
                }
            }
        }
        return JSON.stringify(this.store);
    }
}
TransferState.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: TransferState, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
TransferState.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: TransferState, providedIn: 'root' });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: TransferState, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root' }]
        }], ctorParameters: function () { return []; } });
function retrieveTransferredState(doc, appId) {
    // Locate the script tag with the JSON data transferred from the server.
    // The id of the script tag is set to the Angular appId + 'state'.
    const script = doc.getElementById(appId + '-state');
    let initialState = {};
    if (script && script.textContent) {
        try {
            // Avoid using any here as it triggers lint errors in google3 (any is not allowed).
            initialState = JSON.parse(unescapeHtml(script.textContent));
        }
        catch (e) {
            console.warn('Exception while restoring TransferState for app ' + appId, e);
        }
    }
    return initialState;
}
/**
 * NgModule to install on the client side while using the `TransferState` to transfer state from
 * server to client.
 *
 * @publicApi
 * @deprecated no longer needed, you can inject the `TransferState` in an app without providing
 *     this module.
 */
class BrowserTransferStateModule {
}
BrowserTransferStateModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserTransferStateModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
BrowserTransferStateModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "15.2.9", ngImport: i0, type: BrowserTransferStateModule });
BrowserTransferStateModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserTransferStateModule });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: BrowserTransferStateModule, decorators: [{
            type: NgModule,
            args: [{}]
        }] });

/**
 * Predicates for use with {@link DebugElement}'s query functions.
 *
 * @publicApi
 */
class By {
    /**
     * Match all nodes.
     *
     * @usageNotes
     * ### Example
     *
     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_all'}
     */
    static all() {
        return () => true;
    }
    /**
     * Match elements by the given CSS selector.
     *
     * @usageNotes
     * ### Example
     *
     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_css'}
     */
    static css(selector) {
        return (debugElement) => {
            return debugElement.nativeElement != null ?
                elementMatches(debugElement.nativeElement, selector) :
                false;
        };
    }
    /**
     * Match nodes that have the given directive present.
     *
     * @usageNotes
     * ### Example
     *
     * {@example platform-browser/dom/debug/ts/by/by.ts region='by_directive'}
     */
    static directive(type) {
        return (debugNode) => debugNode.providerTokens.indexOf(type) !== -1;
    }
}
function elementMatches(n, selector) {
    if (ɵgetDOM().isElementNode(n)) {
        return n.matches && n.matches(selector) ||
            n.msMatchesSelector && n.msMatchesSelector(selector) ||
            n.webkitMatchesSelector && n.webkitMatchesSelector(selector);
    }
    return false;
}

/**
 * Supported HammerJS recognizer event names.
 */
const EVENT_NAMES = {
    // pan
    'pan': true,
    'panstart': true,
    'panmove': true,
    'panend': true,
    'pancancel': true,
    'panleft': true,
    'panright': true,
    'panup': true,
    'pandown': true,
    // pinch
    'pinch': true,
    'pinchstart': true,
    'pinchmove': true,
    'pinchend': true,
    'pinchcancel': true,
    'pinchin': true,
    'pinchout': true,
    // press
    'press': true,
    'pressup': true,
    // rotate
    'rotate': true,
    'rotatestart': true,
    'rotatemove': true,
    'rotateend': true,
    'rotatecancel': true,
    // swipe
    'swipe': true,
    'swipeleft': true,
    'swiperight': true,
    'swipeup': true,
    'swipedown': true,
    // tap
    'tap': true,
    'doubletap': true
};
/**
 * DI token for providing [HammerJS](https://hammerjs.github.io/) support to Angular.
 * @see `HammerGestureConfig`
 *
 * @ngModule HammerModule
 * @publicApi
 */
const HAMMER_GESTURE_CONFIG = new InjectionToken('HammerGestureConfig');
/**
 * Injection token used to provide a {@link HammerLoader} to Angular.
 *
 * @publicApi
 */
const HAMMER_LOADER = new InjectionToken('HammerLoader');
/**
 * An injectable [HammerJS Manager](https://hammerjs.github.io/api/#hammermanager)
 * for gesture recognition. Configures specific event recognition.
 * @publicApi
 */
class HammerGestureConfig {
    constructor() {
        /**
         * A set of supported event names for gestures to be used in Angular.
         * Angular supports all built-in recognizers, as listed in
         * [HammerJS documentation](https://hammerjs.github.io/).
         */
        this.events = [];
        /**
         * Maps gesture event names to a set of configuration options
         * that specify overrides to the default values for specific properties.
         *
         * The key is a supported event name to be configured,
         * and the options object contains a set of properties, with override values
         * to be applied to the named recognizer event.
         * For example, to disable recognition of the rotate event, specify
         *  `{"rotate": {"enable": false}}`.
         *
         * Properties that are not present take the HammerJS default values.
         * For information about which properties are supported for which events,
         * and their allowed and default values, see
         * [HammerJS documentation](https://hammerjs.github.io/).
         *
         */
        this.overrides = {};
    }
    /**
     * Creates a [HammerJS Manager](https://hammerjs.github.io/api/#hammermanager)
     * and attaches it to a given HTML element.
     * @param element The element that will recognize gestures.
     * @returns A HammerJS event-manager object.
     */
    buildHammer(element) {
        const mc = new Hammer(element, this.options);
        mc.get('pinch').set({ enable: true });
        mc.get('rotate').set({ enable: true });
        for (const eventName in this.overrides) {
            mc.get(eventName).set(this.overrides[eventName]);
        }
        return mc;
    }
}
HammerGestureConfig.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGestureConfig, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
HammerGestureConfig.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGestureConfig });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGestureConfig, decorators: [{
            type: Injectable
        }] });
/**
 * Event plugin that adds Hammer support to an application.
 *
 * @ngModule HammerModule
 */
class HammerGesturesPlugin extends EventManagerPlugin {
    constructor(doc, _config, console, loader) {
        super(doc);
        this._config = _config;
        this.console = console;
        this.loader = loader;
        this._loaderPromise = null;
    }
    supports(eventName) {
        if (!EVENT_NAMES.hasOwnProperty(eventName.toLowerCase()) && !this.isCustomEvent(eventName)) {
            return false;
        }
        if (!window.Hammer && !this.loader) {
            if (typeof ngDevMode === 'undefined' || ngDevMode) {
                this.console.warn(`The "${eventName}" event cannot be bound because Hammer.JS is not ` +
                    `loaded and no custom loader has been specified.`);
            }
            return false;
        }
        return true;
    }
    addEventListener(element, eventName, handler) {
        const zone = this.manager.getZone();
        eventName = eventName.toLowerCase();
        // If Hammer is not present but a loader is specified, we defer adding the event listener
        // until Hammer is loaded.
        if (!window.Hammer && this.loader) {
            this._loaderPromise = this._loaderPromise || zone.runOutsideAngular(() => this.loader());
            // This `addEventListener` method returns a function to remove the added listener.
            // Until Hammer is loaded, the returned function needs to *cancel* the registration rather
            // than remove anything.
            let cancelRegistration = false;
            let deregister = () => {
                cancelRegistration = true;
            };
            zone.runOutsideAngular(() => this._loaderPromise
                .then(() => {
                // If Hammer isn't actually loaded when the custom loader resolves, give up.
                if (!window.Hammer) {
                    if (typeof ngDevMode === 'undefined' || ngDevMode) {
                        this.console.warn(`The custom HAMMER_LOADER completed, but Hammer.JS is not present.`);
                    }
                    deregister = () => { };
                    return;
                }
                if (!cancelRegistration) {
                    // Now that Hammer is loaded and the listener is being loaded for real,
                    // the deregistration function changes from canceling registration to
                    // removal.
                    deregister = this.addEventListener(element, eventName, handler);
                }
            })
                .catch(() => {
                if (typeof ngDevMode === 'undefined' || ngDevMode) {
                    this.console.warn(`The "${eventName}" event cannot be bound because the custom ` +
                        `Hammer.JS loader failed.`);
                }
                deregister = () => { };
            }));
            // Return a function that *executes* `deregister` (and not `deregister` itself) so that we
            // can change the behavior of `deregister` once the listener is added. Using a closure in
            // this way allows us to avoid any additional data structures to track listener removal.
            return () => {
                deregister();
            };
        }
        return zone.runOutsideAngular(() => {
            // Creating the manager bind events, must be done outside of angular
            const mc = this._config.buildHammer(element);
            const callback = function (eventObj) {
                zone.runGuarded(function () {
                    handler(eventObj);
                });
            };
            mc.on(eventName, callback);
            return () => {
                mc.off(eventName, callback);
                // destroy mc to prevent memory leak
                if (typeof mc.destroy === 'function') {
                    mc.destroy();
                }
            };
        });
    }
    isCustomEvent(eventName) {
        return this._config.events.indexOf(eventName) > -1;
    }
}
HammerGesturesPlugin.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGesturesPlugin, deps: [{ token: DOCUMENT }, { token: HAMMER_GESTURE_CONFIG }, { token: i0.ɵConsole }, { token: HAMMER_LOADER, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });
HammerGesturesPlugin.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGesturesPlugin });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerGesturesPlugin, decorators: [{
            type: Injectable
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }, { type: HammerGestureConfig, decorators: [{
                    type: Inject,
                    args: [HAMMER_GESTURE_CONFIG]
                }] }, { type: i0.ɵConsole }, { type: undefined, decorators: [{
                    type: Optional
                }, {
                    type: Inject,
                    args: [HAMMER_LOADER]
                }] }]; } });
/**
 * Adds support for HammerJS.
 *
 * Import this module at the root of your application so that Angular can work with
 * HammerJS to detect gesture events.
 *
 * Note that applications still need to include the HammerJS script itself. This module
 * simply sets up the coordination layer between HammerJS and Angular's EventManager.
 *
 * @publicApi
 */
class HammerModule {
}
HammerModule.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerModule, deps: [], target: i0.ɵɵFactoryTarget.NgModule });
HammerModule.ɵmod = i0.ɵɵngDeclareNgModule({ minVersion: "14.0.0", version: "15.2.9", ngImport: i0, type: HammerModule });
HammerModule.ɵinj = i0.ɵɵngDeclareInjector({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerModule, providers: [
        {
            provide: EVENT_MANAGER_PLUGINS,
            useClass: HammerGesturesPlugin,
            multi: true,
            deps: [DOCUMENT, HAMMER_GESTURE_CONFIG, ɵConsole, [new Optional(), HAMMER_LOADER]]
        },
        { provide: HAMMER_GESTURE_CONFIG, useClass: HammerGestureConfig, deps: [] },
    ] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: HammerModule, decorators: [{
            type: NgModule,
            args: [{
                    providers: [
                        {
                            provide: EVENT_MANAGER_PLUGINS,
                            useClass: HammerGesturesPlugin,
                            multi: true,
                            deps: [DOCUMENT, HAMMER_GESTURE_CONFIG, ɵConsole, [new Optional(), HAMMER_LOADER]]
                        },
                        { provide: HAMMER_GESTURE_CONFIG, useClass: HammerGestureConfig, deps: [] },
                    ]
                }]
        }] });

/**
 * DomSanitizer helps preventing Cross Site Scripting Security bugs (XSS) by sanitizing
 * values to be safe to use in the different DOM contexts.
 *
 * For example, when binding a URL in an `<a [href]="someValue">` hyperlink, `someValue` will be
 * sanitized so that an attacker cannot inject e.g. a `javascript:` URL that would execute code on
 * the website.
 *
 * In specific situations, it might be necessary to disable sanitization, for example if the
 * application genuinely needs to produce a `javascript:` style link with a dynamic value in it.
 * Users can bypass security by constructing a value with one of the `bypassSecurityTrust...`
 * methods, and then binding to that value from the template.
 *
 * These situations should be very rare, and extraordinary care must be taken to avoid creating a
 * Cross Site Scripting (XSS) security bug!
 *
 * When using `bypassSecurityTrust...`, make sure to call the method as early as possible and as
 * close as possible to the source of the value, to make it easy to verify no security bug is
 * created by its use.
 *
 * It is not required (and not recommended) to bypass security if the value is safe, e.g. a URL that
 * does not start with a suspicious protocol, or an HTML snippet that does not contain dangerous
 * code. The sanitizer leaves safe values intact.
 *
 * @security Calling any of the `bypassSecurityTrust...` APIs disables Angular's built-in
 * sanitization for the value passed in. Carefully check and audit all values and code paths going
 * into this call. Make sure any user data is appropriately escaped for this security context.
 * For more detail, see the [Security Guide](https://g.co/ng/security).
 *
 * @publicApi
 */
class DomSanitizer {
}
DomSanitizer.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizer, deps: [], target: i0.ɵɵFactoryTarget.Injectable });
DomSanitizer.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizer, providedIn: 'root', useExisting: i0.forwardRef(function () { return DomSanitizerImpl; }) });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizer, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root', useExisting: forwardRef(() => DomSanitizerImpl) }]
        }] });
function domSanitizerImplFactory(injector) {
    return new DomSanitizerImpl(injector.get(DOCUMENT));
}
class DomSanitizerImpl extends DomSanitizer {
    constructor(_doc) {
        super();
        this._doc = _doc;
    }
    sanitize(ctx, value) {
        if (value == null)
            return null;
        switch (ctx) {
            case SecurityContext.NONE:
                return value;
            case SecurityContext.HTML:
                if (ɵallowSanitizationBypassAndThrow(value, "HTML" /* BypassType.Html */)) {
                    return ɵunwrapSafeValue(value);
                }
                return ɵ_sanitizeHtml(this._doc, String(value)).toString();
            case SecurityContext.STYLE:
                if (ɵallowSanitizationBypassAndThrow(value, "Style" /* BypassType.Style */)) {
                    return ɵunwrapSafeValue(value);
                }
                return value;
            case SecurityContext.SCRIPT:
                if (ɵallowSanitizationBypassAndThrow(value, "Script" /* BypassType.Script */)) {
                    return ɵunwrapSafeValue(value);
                }
                throw new Error('unsafe value used in a script context');
            case SecurityContext.URL:
                if (ɵallowSanitizationBypassAndThrow(value, "URL" /* BypassType.Url */)) {
                    return ɵunwrapSafeValue(value);
                }
                return ɵ_sanitizeUrl(String(value));
            case SecurityContext.RESOURCE_URL:
                if (ɵallowSanitizationBypassAndThrow(value, "ResourceURL" /* BypassType.ResourceUrl */)) {
                    return ɵunwrapSafeValue(value);
                }
                throw new Error(`unsafe value used in a resource URL context (see ${ɵXSS_SECURITY_URL})`);
            default:
                throw new Error(`Unexpected SecurityContext ${ctx} (see ${ɵXSS_SECURITY_URL})`);
        }
    }
    bypassSecurityTrustHtml(value) {
        return ɵbypassSanitizationTrustHtml(value);
    }
    bypassSecurityTrustStyle(value) {
        return ɵbypassSanitizationTrustStyle(value);
    }
    bypassSecurityTrustScript(value) {
        return ɵbypassSanitizationTrustScript(value);
    }
    bypassSecurityTrustUrl(value) {
        return ɵbypassSanitizationTrustUrl(value);
    }
    bypassSecurityTrustResourceUrl(value) {
        return ɵbypassSanitizationTrustResourceUrl(value);
    }
}
DomSanitizerImpl.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizerImpl, deps: [{ token: DOCUMENT }], target: i0.ɵɵFactoryTarget.Injectable });
DomSanitizerImpl.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizerImpl, providedIn: 'root', useFactory: domSanitizerImplFactory, deps: [{ token: Injector }] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.9", ngImport: i0, type: DomSanitizerImpl, decorators: [{
            type: Injectable,
            args: [{ providedIn: 'root', useFactory: domSanitizerImplFactory, deps: [Injector] }]
        }], ctorParameters: function () { return [{ type: undefined, decorators: [{
                    type: Inject,
                    args: [DOCUMENT]
                }] }]; } });

/**
 * @module
 * @description
 * Entry point for all public APIs of the platform-browser package.
 */
/**
 * @publicApi
 */
const VERSION = new Version('15.2.9');

/**
 * @module
 * @description
 * Entry point for all public APIs of this package.
 */
// This file only reexports content of the `src` folder. Keep it that way.

// This file is not used to build this module. It is only used during editing

/**
 * Generated bundle index. Do not edit.
 */

export { BrowserModule, BrowserTransferStateModule, By, DomSanitizer, EVENT_MANAGER_PLUGINS, EventManager, HAMMER_GESTURE_CONFIG, HAMMER_LOADER, HammerGestureConfig, HammerModule, Meta, REMOVE_STYLES_ON_COMPONENT_DESTROY, Title, TransferState, VERSION, bootstrapApplication, createApplication, disableDebugTools, enableDebugTools, makeStateKey, platformBrowser, provideProtractorTestingSupport, BrowserDomAdapter as ɵBrowserDomAdapter, BrowserGetTestability as ɵBrowserGetTestability, DomEventsPlugin as ɵDomEventsPlugin, DomRendererFactory2 as ɵDomRendererFactory2, DomSanitizerImpl as ɵDomSanitizerImpl, DomSharedStylesHost as ɵDomSharedStylesHost, HammerGesturesPlugin as ɵHammerGesturesPlugin, INTERNAL_BROWSER_PLATFORM_PROVIDERS as ɵINTERNAL_BROWSER_PLATFORM_PROVIDERS, KeyEventsPlugin as ɵKeyEventsPlugin, NAMESPACE_URIS as ɵNAMESPACE_URIS, SharedStylesHost as ɵSharedStylesHost, TRANSITION_ID as ɵTRANSITION_ID, escapeHtml as ɵescapeHtml, flattenStyles as ɵflattenStyles, initDomAdapter as ɵinitDomAdapter, shimContentAttribute as ɵshimContentAttribute, shimHostAttribute as ɵshimHostAttribute };
//# sourceMappingURL=platform-browser.mjs.map
