{ "version": 3, "sources": ["../../../../../node_modules/@angular/platform-browser/fesm2022/platform-browser.mjs"], "sourcesContent": ["/**\n * @license Angular v17.0.7\n * (c) 2010-2022 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport * as i0 from '@angular/core';\nimport { ɵglobal, ɵRuntimeError, Injectable, InjectionToken, Inject, APP_ID, CSP_NONCE, PLATFORM_ID, Optional, ViewEncapsulation, RendererStyleFlags2, ɵinternalCreateApplication, ErrorHandler, ɵsetDocument, PLATFORM_INITIALIZER, createPlatformFactory, platformCore, ɵTESTABILITY_GETTER, ɵTESTABILITY, Testability, NgZone, TestabilityRegistry, ɵINJECTOR_SCOPE, RendererFactory2, ApplicationModule, NgModule, SkipSelf, ɵɵinject, ApplicationRef, ɵConsole, forwardRef, ɵXSS_SECURITY_URL, SecurityContext, ɵallowSanitizationBypassAndThrow, ɵunwrapSafeValue, ɵ_sanitizeUrl, ɵ_sanitizeHtml, ɵbypassSanitizationTrustHtml, ɵbypassSanitizationTrustStyle, ɵbypassSanitizationTrustScript, ɵbypassSanitizationTrustUrl, ɵbypassSanitizationTrustResourceUrl, Injector, ENVIRONMENT_INITIALIZER, inject, ɵformatRuntimeError, makeEnvironmentProviders, ɵwithDomHydration, Version, makeStateKey as makeStateKey$1, TransferState as TransferState$1 } from '@angular/core';\nimport { ɵDomAdapter, ɵsetRootDomAdapter, ɵparseCookieValue, ɵgetDOM, isPlatformServer, DOCUMENT, ɵPLATFORM_BROWSER_ID, XhrFactory, CommonModule } from '@angular/common';\nexport { ɵgetDOM } from '@angular/common';\nimport { ɵwithHttpTransferCache } from '@angular/common/http';\n\n/**\n * Provides DOM operations in any browser environment.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\nclass GenericBrowserDomAdapter extends ɵDomAdapter {\n constructor() {\n super(...arguments);\n this.supportsDOMEvents = true;\n }\n}\n\n/**\n * A `DomAdapter` powered by full browser DOM APIs.\n *\n * @security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\n/* tslint:disable:requireParameterType no-console */\nclass BrowserDomAdapter extends GenericBrowserDomAdapter {\n static makeCurrent() {\n ɵsetRootDomAdapter(new BrowserDomAdapter());\n }\n onAndCancel(el, evt, listener) {\n el.addEventListener(evt, listener);\n return () => {\n el.removeEventListener(evt, listener);\n };\n }\n dispatchEvent(el, evt) {\n el.dispatchEvent(evt);\n }\n remove(node) {\n if (node.parentNode) {\n node.parentNode.removeChild(node);\n }\n }\n createElement(tagName, doc) {\n doc = doc || this.getDefaultDocument();\n return doc.createElement(tagName);\n }\n createHtmlDocument() {\n return document.implementation.createHTMLDocument('fakeTitle');\n }\n getDefaultDocument() {\n return document;\n }\n isElementNode(node) {\n return node.nodeType === Node.ELEMENT_NODE;\n }\n isShadowRoot(node) {\n return node instanceof DocumentFragment;\n }\n /** @deprecated No longer being used in Ivy code. To be removed in version 14. */\n getGlobalEventTarget(doc, target) {\n if (target === 'window') {\n return window;\n }\n if (target === 'document') {\n return doc;\n }\n if (target === 'body') {\n return doc.body;\n }\n return null;\n }\n getBaseHref(doc) {\n const href = getBaseElementHref();\n return href == null ? null : relativePath(href);\n }\n resetBaseElement() {\n baseElement = null;\n }\n getUserAgent() {\n return window.navigator.userAgent;\n }\n getCookie(name) {\n return ɵparseCookieValue(document.cookie, name);\n }\n}\nlet baseElement = null;\nfunction getBaseElementHref() {\n baseElement = baseElement || document.querySelector('base');\n return baseElement ? baseElement.getAttribute('href') : null;\n}\nfunction relativePath(url) {\n // The base URL doesn't really matter, we just need it so relative paths have something\n // to resolve against. In the browser `HTMLBaseElement.href` is always absolute.\n return new URL(url, document.baseURI).pathname;\n}\nclass BrowserGetTestability {\n addToWindow(registry) {\n ɵglobal['getAngularTestability'] = (elem, findInAncestors = true) => {\n const testability = registry.findTestabilityInTree(elem, findInAncestors);\n if (testability == null) {\n throw new ɵRuntimeError(5103 /* RuntimeErrorCode.TESTABILITY_NOT_FOUND */, (typeof ngDevMode === 'undefined' || ngDevMode) && 'Could not find testability for element.');\n }\n return testability;\n };\n ɵglobal['getAllAngularTestabilities'] = () => registry.getAllTestabilities();\n ɵglobal['getAllAngularRootElements'] = () => registry.getAllRootElements();\n const whenAllStable = callback => {\n const testabilities = ɵglobal['getAllAngularTestabilities']();\n let count = testabilities.length;\n let didWork = false;\n const decrement = function (didWork_) {\n didWork = didWork || didWork_;\n count--;\n if (count == 0) {\n callback(didWork);\n }\n };\n testabilities.forEach(testability => {\n testability.whenStable(decrement);\n });\n };\n if (!ɵglobal['frameworkStabilizers']) {\n ɵglobal['frameworkStabilizers'] = [];\n }\n ɵglobal['frameworkStabilizers'].push(whenAllStable);\n }\n findTestabilityInTree(registry, elem, findInAncestors) {\n if (elem == null) {\n return null;\n }\n const t = registry.getTestability(elem);\n if (t != null) {\n return t;\n } else if (!findInAncestors) {\n return null;\n }\n if (ɵgetDOM().isShadowRoot(elem)) {\n return this.findTestabilityInTree(registry, elem.host, true);\n }\n return this.findTestabilityInTree(registry, elem.parentElement, true);\n }\n}\n\n/**\n * A factory for `HttpXhrBackend` that uses the `XMLHttpRequest` browser API.\n */\nclass BrowserXhr {\n build() {\n return new XMLHttpRequest();\n }\n static {\n this.ɵfac = function BrowserXhr_Factory(t) {\n return new (t || BrowserXhr)();\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: BrowserXhr,\n factory: BrowserXhr.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(BrowserXhr, [{\n type: Injectable\n }], null, null);\n})();\n\n/**\n * The injection token for plugins of the `EventManager` service.\n *\n * @publicApi\n */\nconst EVENT_MANAGER_PLUGINS = new InjectionToken('EventManagerPlugins');\n/**\n * An injectable service that provides event management for Angular\n * through a browser plug-in.\n *\n * @publicApi\n */\nclass EventManager {\n /**\n * Initializes an instance of the event-manager service.\n */\n constructor(plugins, _zone) {\n this._zone = _zone;\n this._eventNameToPlugin = new Map();\n plugins.forEach(plugin => {\n plugin.manager = this;\n });\n this._plugins = plugins.slice().reverse();\n }\n /**\n * Registers a handler for a specific element and event.\n *\n * @param element The HTML element to receive event notifications.\n * @param eventName The name of the event to listen for.\n * @param handler A function to call when the notification occurs. Receives the\n * event object as an argument.\n * @returns A callback function that can be used to remove the handler.\n */\n addEventListener(element, eventName, handler) {\n const plugin = this._findPluginFor(eventName);\n return plugin.addEventListener(element, eventName, handler);\n }\n /**\n * Retrieves the compilation zone in which event listeners are registered.\n */\n getZone() {\n return this._zone;\n }\n /** @internal */\n _findPluginFor(eventName) {\n let plugin = this._eventNameToPlugin.get(eventName);\n if (plugin) {\n return plugin;\n }\n const plugins = this._plugins;\n plugin = plugins.find(plugin => plugin.supports(eventName));\n if (!plugin) {\n throw new ɵRuntimeError(5101 /* RuntimeErrorCode.NO_PLUGIN_FOR_EVENT */, (typeof ngDevMode === 'undefined' || ngDevMode) && `No event manager plugin found for event ${eventName}`);\n }\n this._eventNameToPlugin.set(eventName, plugin);\n return plugin;\n }\n static {\n this.ɵfac = function EventManager_Factory(t) {\n return new (t || EventManager)(i0.ɵɵinject(EVENT_MANAGER_PLUGINS), i0.ɵɵinject(i0.NgZone));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: EventManager,\n factory: EventManager.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(EventManager, [{\n type: Injectable\n }], () => [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [EVENT_MANAGER_PLUGINS]\n }]\n }, {\n type: i0.NgZone\n }], null);\n})();\n/**\n * The plugin definition for the `EventManager` class\n *\n * It can be used as a base class to create custom manager plugins, i.e. you can create your own\n * class that extends the `EventManagerPlugin` one.\n *\n * @publicApi\n */\nclass EventManagerPlugin {\n // TODO: remove (has some usage in G3)\n constructor(_doc) {\n this._doc = _doc;\n }\n}\n\n/** The style elements attribute name used to set value of `APP_ID` token. */\nconst APP_ID_ATTRIBUTE_NAME = 'ng-app-id';\nclass SharedStylesHost {\n constructor(doc, appId, nonce, platformId = {}) {\n this.doc = doc;\n this.appId = appId;\n this.nonce = nonce;\n this.platformId = platformId;\n // Maps all registered host nodes to a list of style nodes that have been added to the host node.\n this.styleRef = new Map();\n this.hostNodes = new Set();\n this.styleNodesInDOM = this.collectServerRenderedStyles();\n this.platformIsServer = isPlatformServer(platformId);\n this.resetHostNodes();\n }\n addStyles(styles) {\n for (const style of styles) {\n const usageCount = this.changeUsageCount(style, 1);\n if (usageCount === 1) {\n this.onStyleAdded(style);\n }\n }\n }\n removeStyles(styles) {\n for (const style of styles) {\n const usageCount = this.changeUsageCount(style, -1);\n if (usageCount <= 0) {\n this.onStyleRemoved(style);\n }\n }\n }\n ngOnDestroy() {\n const styleNodesInDOM = this.styleNodesInDOM;\n if (styleNodesInDOM) {\n styleNodesInDOM.forEach(node => node.remove());\n styleNodesInDOM.clear();\n }\n for (const style of this.getAllStyles()) {\n this.onStyleRemoved(style);\n }\n this.resetHostNodes();\n }\n addHost(hostNode) {\n this.hostNodes.add(hostNode);\n for (const style of this.getAllStyles()) {\n this.addStyleToHost(hostNode, style);\n }\n }\n removeHost(hostNode) {\n this.hostNodes.delete(hostNode);\n }\n getAllStyles() {\n return this.styleRef.keys();\n }\n onStyleAdded(style) {\n for (const host of this.hostNodes) {\n this.addStyleToHost(host, style);\n }\n }\n onStyleRemoved(style) {\n const styleRef = this.styleRef;\n styleRef.get(style)?.elements?.forEach(node => node.remove());\n styleRef.delete(style);\n }\n collectServerRenderedStyles() {\n const styles = this.doc.head?.querySelectorAll(`style[${APP_ID_ATTRIBUTE_NAME}=\"${this.appId}\"]`);\n if (styles?.length) {\n const styleMap = new Map();\n styles.forEach(style => {\n if (style.textContent != null) {\n styleMap.set(style.textContent, style);\n }\n });\n return styleMap;\n }\n return null;\n }\n changeUsageCount(style, delta) {\n const map = this.styleRef;\n if (map.has(style)) {\n const styleRefValue = map.get(style);\n styleRefValue.usage += delta;\n return styleRefValue.usage;\n }\n map.set(style, {\n usage: delta,\n elements: []\n });\n return delta;\n }\n getStyleElement(host, style) {\n const styleNodesInDOM = this.styleNodesInDOM;\n const styleEl = styleNodesInDOM?.get(style);\n if (styleEl?.parentNode === host) {\n // `styleNodesInDOM` cannot be undefined due to the above `styleNodesInDOM?.get`.\n styleNodesInDOM.delete(style);\n styleEl.removeAttribute(APP_ID_ATTRIBUTE_NAME);\n if (typeof ngDevMode === 'undefined' || ngDevMode) {\n // This attribute is solely used for debugging purposes.\n styleEl.setAttribute('ng-style-reused', '');\n }\n return styleEl;\n } else {\n const styleEl = this.doc.createElement('style');\n if (this.nonce) {\n styleEl.setAttribute('nonce', this.nonce);\n }\n styleEl.textContent = style;\n if (this.platformIsServer) {\n styleEl.setAttribute(APP_ID_ATTRIBUTE_NAME, this.appId);\n }\n host.appendChild(styleEl);\n return styleEl;\n }\n }\n addStyleToHost(host, style) {\n const styleEl = this.getStyleElement(host, style);\n const styleRef = this.styleRef;\n const styleElRef = styleRef.get(style)?.elements;\n if (styleElRef) {\n styleElRef.push(styleEl);\n } else {\n styleRef.set(style, {\n elements: [styleEl],\n usage: 1\n });\n }\n }\n resetHostNodes() {\n const hostNodes = this.hostNodes;\n hostNodes.clear();\n // Re-add the head element back since this is the default host.\n hostNodes.add(this.doc.head);\n }\n static {\n this.ɵfac = function SharedStylesHost_Factory(t) {\n return new (t || SharedStylesHost)(i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(APP_ID), i0.ɵɵinject(CSP_NONCE, 8), i0.ɵɵinject(PLATFORM_ID));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: SharedStylesHost,\n factory: SharedStylesHost.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(SharedStylesHost, [{\n type: Injectable\n }], () => [{\n type: Document,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [APP_ID]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [CSP_NONCE]\n }, {\n type: Optional\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [PLATFORM_ID]\n }]\n }], null);\n})();\nconst NAMESPACE_URIS = {\n 'svg': 'http://www.w3.org/2000/svg',\n 'xhtml': 'http://www.w3.org/1999/xhtml',\n 'xlink': 'http://www.w3.org/1999/xlink',\n 'xml': 'http://www.w3.org/XML/1998/namespace',\n 'xmlns': 'http://www.w3.org/2000/xmlns/',\n 'math': 'http://www.w3.org/1998/MathML/'\n};\nconst COMPONENT_REGEX = /%COMP%/g;\nconst COMPONENT_VARIABLE = '%COMP%';\nconst HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\nconst CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\n/**\n * The default value for the `REMOVE_STYLES_ON_COMPONENT_DESTROY` DI token.\n */\nconst REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT = true;\n/**\n * A [DI token](guide/glossary#di-token \"DI token definition\") that indicates whether styles\n * of destroyed components should be removed from DOM.\n *\n * By default, the value is set to `true`.\n * @publicApi\n */\nconst REMOVE_STYLES_ON_COMPONENT_DESTROY = new InjectionToken('RemoveStylesOnCompDestroy', {\n providedIn: 'root',\n factory: () => REMOVE_STYLES_ON_COMPONENT_DESTROY_DEFAULT\n});\nfunction shimContentAttribute(componentShortId) {\n return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\nfunction shimHostAttribute(componentShortId) {\n return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\nfunction shimStylesContent(compId, styles) {\n return styles.map(s => s.replace(COMPONENT_REGEX, compId));\n}\nclass DomRendererFactory2 {\n constructor(eventManager, sharedStylesHost, appId, removeStylesOnCompDestroy, doc, platformId, ngZone, nonce = null) {\n this.eventManager = eventManager;\n this.sharedStylesHost = sharedStylesHost;\n this.appId = appId;\n this.removeStylesOnCompDestroy = removeStylesOnCompDestroy;\n this.doc = doc;\n this.platformId = platformId;\n this.ngZone = ngZone;\n this.nonce = nonce;\n this.rendererByCompId = new Map();\n this.platformIsServer = isPlatformServer(platformId);\n this.defaultRenderer = new DefaultDomRenderer2(eventManager, doc, ngZone, this.platformIsServer);\n }\n createRenderer(element, type) {\n if (!element || !type) {\n return this.defaultRenderer;\n }\n if (this.platformIsServer && type.encapsulation === ViewEncapsulation.ShadowDom) {\n // Domino does not support shadow DOM.\n type = {\n ...type,\n encapsulation: ViewEncapsulation.Emulated\n };\n }\n const renderer = this.getOrCreateRenderer(element, type);\n // Renderers have different logic due to different encapsulation behaviours.\n // Ex: for emulated, an attribute is added to the element.\n if (renderer instanceof EmulatedEncapsulationDomRenderer2) {\n renderer.applyToHost(element);\n } else if (renderer instanceof NoneEncapsulationDomRenderer) {\n renderer.applyStyles();\n }\n return renderer;\n }\n getOrCreateRenderer(element, type) {\n const rendererByCompId = this.rendererByCompId;\n let renderer = rendererByCompId.get(type.id);\n if (!renderer) {\n const doc = this.doc;\n const ngZone = this.ngZone;\n const eventManager = this.eventManager;\n const sharedStylesHost = this.sharedStylesHost;\n const removeStylesOnCompDestroy = this.removeStylesOnCompDestroy;\n const platformIsServer = this.platformIsServer;\n switch (type.encapsulation) {\n case ViewEncapsulation.Emulated:\n renderer = new EmulatedEncapsulationDomRenderer2(eventManager, sharedStylesHost, type, this.appId, removeStylesOnCompDestroy, doc, ngZone, platformIsServer);\n break;\n case ViewEncapsulation.ShadowDom:\n return new ShadowDomRenderer(eventManager, sharedStylesHost, element, type, doc, ngZone, this.nonce, platformIsServer);\n default:\n renderer = new NoneEncapsulationDomRenderer(eventManager, sharedStylesHost, type, removeStylesOnCompDestroy, doc, ngZone, platformIsServer);\n break;\n }\n rendererByCompId.set(type.id, renderer);\n }\n return renderer;\n }\n ngOnDestroy() {\n this.rendererByCompId.clear();\n }\n static {\n this.ɵfac = function DomRendererFactory2_Factory(t) {\n return new (t || DomRendererFactory2)(i0.ɵɵinject(EventManager), i0.ɵɵinject(SharedStylesHost), i0.ɵɵinject(APP_ID), i0.ɵɵinject(REMOVE_STYLES_ON_COMPONENT_DESTROY), i0.ɵɵinject(DOCUMENT), i0.ɵɵinject(PLATFORM_ID), i0.ɵɵinject(i0.NgZone), i0.ɵɵinject(CSP_NONCE));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: DomRendererFactory2,\n factory: DomRendererFactory2.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(DomRendererFactory2, [{\n type: Injectable\n }], () => [{\n type: EventManager\n }, {\n type: SharedStylesHost\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [APP_ID]\n }]\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [REMOVE_STYLES_ON_COMPONENT_DESTROY]\n }]\n }, {\n type: Document,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }, {\n type: Object,\n decorators: [{\n type: Inject,\n args: [PLATFORM_ID]\n }]\n }, {\n type: i0.NgZone\n }, {\n type: undefined,\n decorators: [{\n type: Inject,\n args: [CSP_NONCE]\n }]\n }], null);\n})();\nclass DefaultDomRenderer2 {\n constructor(eventManager, doc, ngZone, platformIsServer) {\n this.eventManager = eventManager;\n this.doc = doc;\n this.ngZone = ngZone;\n this.platformIsServer = platformIsServer;\n this.data = Object.create(null);\n /**\n * By default this renderer throws when encountering synthetic properties\n * This can be disabled for example by the AsyncAnimationRendererFactory\n */\n this.throwOnSyntheticProps = true;\n this.destroyNode = null;\n }\n destroy() {}\n createElement(name, namespace) {\n if (namespace) {\n // TODO: `|| namespace` was added in\n // https://github.com/angular/angular/commit/2b9cc8503d48173492c29f5a271b61126104fbdb to\n // support how Ivy passed around the namespace URI rather than short name at the time. It did\n // not, however extend the support to other parts of the system (setAttribute, setAttribute,\n // and the ServerRenderer). We should decide what exactly the semantics for dealing with\n // namespaces should be and make it consistent.\n // Related issues:\n // https://github.com/angular/angular/issues/44028\n // https://github.com/angular/angular/issues/44883\n return this.doc.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);\n }\n return this.doc.createElement(name);\n }\n createComment(value) {\n return this.doc.createComment(value);\n }\n createText(value) {\n return this.doc.createTextNode(value);\n }\n appendChild(parent, newChild) {\n const targetParent = isTemplateNode(parent) ? parent.content : parent;\n targetParent.appendChild(newChild);\n }\n insertBefore(parent, newChild, refChild) {\n if (parent) {\n const targetParent = isTemplateNode(parent) ? parent.content : parent;\n targetParent.insertBefore(newChild, refChild);\n }\n }\n removeChild(parent, oldChild) {\n if (parent) {\n parent.removeChild(oldChild);\n }\n }\n selectRootElement(selectorOrNode, preserveContent) {\n let el = typeof selectorOrNode === 'string' ? this.doc.querySelector(selectorOrNode) : selectorOrNode;\n if (!el) {\n throw new ɵRuntimeError(-5104 /* RuntimeErrorCode.ROOT_NODE_NOT_FOUND */, (typeof ngDevMode === 'undefined' || ngDevMode) && `The selector \"${selectorOrNode}\" did not match any elements`);\n }\n if (!preserveContent) {\n el.textContent = '';\n }\n return el;\n }\n parentNode(node) {\n return node.parentNode;\n }\n nextSibling(node) {\n return node.nextSibling;\n }\n setAttribute(el, name, value, namespace) {\n if (namespace) {\n name = namespace + ':' + name;\n const namespaceUri = NAMESPACE_URIS[namespace];\n if (namespaceUri) {\n el.setAttributeNS(namespaceUri, name, value);\n } else {\n el.setAttribute(name, value);\n }\n } else {\n el.setAttribute(name, value);\n }\n }\n removeAttribute(el, name, namespace) {\n if (namespace) {\n const namespaceUri = NAMESPACE_URIS[namespace];\n if (namespaceUri) {\n el.removeAttributeNS(namespaceUri, name);\n } else {\n el.removeAttribute(`${namespace}:${name}`);\n }\n } else {\n el.removeAttribute(name);\n }\n }\n addClass(el, name) {\n el.classList.add(name);\n }\n removeClass(el, name) {\n el.classList.remove(name);\n }\n setStyle(el, style, value, flags) {\n if (flags & (RendererStyleFlags2.DashCase | RendererStyleFlags2.Important)) {\n el.style.setProperty(style, value, flags & RendererStyleFlags2.Important ? 'important' : '');\n } else {\n el.style[style] = value;\n }\n }\n removeStyle(el, style, flags) {\n if (flags & RendererStyleFlags2.DashCase) {\n // removeProperty has no effect when used on camelCased properties.\n el.style.removeProperty(style);\n } else {\n el.style[style] = '';\n }\n }\n setProperty(el, name, value) {\n if (el == null) {\n return;\n }\n (typeof ngDevMode === 'undefined' || ngDevMode) && this.throwOnSyntheticProps && checkNoSyntheticProp(name, 'property');\n el[name] = value;\n }\n setValue(node, value) {\n node.nodeValue = value;\n }\n listen(target, event, callback) {\n (typeof ngDevMode === 'undefined' || ngDevMode) && this.throwOnSyntheticProps && checkNoSyntheticProp(event, 'listener');\n if (typeof target === 'string') {\n target = ɵgetDOM().getGlobalEventTarget(this.doc, target);\n if (!target) {\n throw new Error(`Unsupported event target ${target} for event ${event}`);\n }\n }\n return this.eventManager.addEventListener(target, event, this.decoratePreventDefault(callback));\n }\n decoratePreventDefault(eventHandler) {\n // `DebugNode.triggerEventHandler` needs to know if the listener was created with\n // decoratePreventDefault or is a listener added outside the Angular context so it can handle\n // the two differently. In the first case, the special '__ngUnwrap__' token is passed to the\n // unwrap the listener (see below).\n return event => {\n // Ivy uses '__ngUnwrap__' as a special token that allows us to unwrap the function\n // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`. The\n // debug_node can inspect the listener toString contents for the existence of this special\n // token. Because the token is a string literal, it is ensured to not be modified by compiled\n // code.\n if (event === '__ngUnwrap__') {\n return eventHandler;\n }\n // Run the event handler inside the ngZone because event handlers are not patched\n // by Zone on the server. This is required only for tests.\n const allowDefaultBehavior = this.platformIsServer ? this.ngZone.runGuarded(() => eventHandler(event)) : eventHandler(event);\n if (allowDefaultBehavior === false) {\n event.preventDefault();\n }\n return undefined;\n };\n }\n}\nconst AT_CHARCODE = (() => '@'.charCodeAt(0))();\nfunction checkNoSyntheticProp(name, nameKind) {\n if (name.charCodeAt(0) === AT_CHARCODE) {\n throw new ɵRuntimeError(5105 /* RuntimeErrorCode.UNEXPECTED_SYNTHETIC_PROPERTY */, `Unexpected synthetic ${nameKind} ${name} found. Please make sure that:\n - Either \\`BrowserAnimationsModule\\` or \\`NoopAnimationsModule\\` are imported in your application.\n - There is corresponding configuration for the animation named \\`${name}\\` defined in the \\`animations\\` field of the \\`@Component\\` decorator (see https://angular.io/api/core/Component#animations).`);\n }\n}\nfunction isTemplateNode(node) {\n return node.tagName === 'TEMPLATE' && node.content !== undefined;\n}\nclass ShadowDomRenderer extends DefaultDomRenderer2 {\n constructor(eventManager, sharedStylesHost, hostEl, component, doc, ngZone, nonce, platformIsServer) {\n super(eventManager, doc, ngZone, platformIsServer);\n this.sharedStylesHost = sharedStylesHost;\n this.hostEl = hostEl;\n this.shadowRoot = hostEl.attachShadow({\n mode: 'open'\n });\n this.sharedStylesHost.addHost(this.shadowRoot);\n const styles = shimStylesContent(component.id, component.styles);\n for (const style of styles) {\n const styleEl = document.createElement('style');\n if (nonce) {\n styleEl.setAttribute('nonce', nonce);\n }\n styleEl.textContent = style;\n this.shadowRoot.appendChild(styleEl);\n }\n }\n nodeOrShadowRoot(node) {\n return node === this.hostEl ? this.shadowRoot : node;\n }\n appendChild(parent, newChild) {\n return super.appendChild(this.nodeOrShadowRoot(parent), newChild);\n }\n insertBefore(parent, newChild, refChild) {\n return super.insertBefore(this.nodeOrShadowRoot(parent), newChild, refChild);\n }\n removeChild(parent, oldChild) {\n return super.removeChild(this.nodeOrShadowRoot(parent), oldChild);\n }\n parentNode(node) {\n return this.nodeOrShadowRoot(super.parentNode(this.nodeOrShadowRoot(node)));\n }\n destroy() {\n this.sharedStylesHost.removeHost(this.shadowRoot);\n }\n}\nclass NoneEncapsulationDomRenderer extends DefaultDomRenderer2 {\n constructor(eventManager, sharedStylesHost, component, removeStylesOnCompDestroy, doc, ngZone, platformIsServer, compId) {\n super(eventManager, doc, ngZone, platformIsServer);\n this.sharedStylesHost = sharedStylesHost;\n this.removeStylesOnCompDestroy = removeStylesOnCompDestroy;\n this.styles = compId ? shimStylesContent(compId, component.styles) : component.styles;\n }\n applyStyles() {\n this.sharedStylesHost.addStyles(this.styles);\n }\n destroy() {\n if (!this.removeStylesOnCompDestroy) {\n return;\n }\n this.sharedStylesHost.removeStyles(this.styles);\n }\n}\nclass EmulatedEncapsulationDomRenderer2 extends NoneEncapsulationDomRenderer {\n constructor(eventManager, sharedStylesHost, component, appId, removeStylesOnCompDestroy, doc, ngZone, platformIsServer) {\n const compId = appId + '-' + component.id;\n super(eventManager, sharedStylesHost, component, removeStylesOnCompDestroy, doc, ngZone, platformIsServer, compId);\n this.contentAttr = shimContentAttribute(compId);\n this.hostAttr = shimHostAttribute(compId);\n }\n applyToHost(element) {\n this.applyStyles();\n this.setAttribute(element, this.hostAttr, '');\n }\n createElement(parent, name) {\n const el = super.createElement(parent, name);\n super.setAttribute(el, this.contentAttr, '');\n return el;\n }\n}\nclass DomEventsPlugin extends EventManagerPlugin {\n constructor(doc) {\n super(doc);\n }\n // This plugin should come last in the list of plugins, because it accepts all\n // events.\n supports(eventName) {\n return true;\n }\n addEventListener(element, eventName, handler) {\n element.addEventListener(eventName, handler, false);\n return () => this.removeEventListener(element, eventName, handler);\n }\n removeEventListener(target, eventName, callback) {\n return target.removeEventListener(eventName, callback);\n }\n static {\n this.ɵfac = function DomEventsPlugin_Factory(t) {\n return new (t || DomEventsPlugin)(i0.ɵɵinject(DOCUMENT));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: DomEventsPlugin,\n factory: DomEventsPlugin.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(DomEventsPlugin, [{\n type: Injectable\n }], () => [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }], null);\n})();\n\n/**\n * Defines supported modifiers for key events.\n */\nconst MODIFIER_KEYS = ['alt', 'control', 'meta', 'shift'];\n// The following values are here for cross-browser compatibility and to match the W3C standard\n// cf https://www.w3.org/TR/DOM-Level-3-Events-key/\nconst _keyMap = {\n '\\b': 'Backspace',\n '\\t': 'Tab',\n '\\x7F': 'Delete',\n '\\x1B': 'Escape',\n 'Del': 'Delete',\n 'Esc': 'Escape',\n 'Left': 'ArrowLeft',\n 'Right': 'ArrowRight',\n 'Up': 'ArrowUp',\n 'Down': 'ArrowDown',\n 'Menu': 'ContextMenu',\n 'Scroll': 'ScrollLock',\n 'Win': 'OS'\n};\n/**\n * Retrieves modifiers from key-event objects.\n */\nconst MODIFIER_KEY_GETTERS = {\n 'alt': event => event.altKey,\n 'control': event => event.ctrlKey,\n 'meta': event => event.metaKey,\n 'shift': event => event.shiftKey\n};\n/**\n * A browser plug-in that provides support for handling of key events in Angular.\n */\nclass KeyEventsPlugin extends EventManagerPlugin {\n /**\n * Initializes an instance of the browser plug-in.\n * @param doc The document in which key events will be detected.\n */\n constructor(doc) {\n super(doc);\n }\n /**\n * Reports whether a named key event is supported.\n * @param eventName The event name to query.\n * @return True if the named key event is supported.\n */\n supports(eventName) {\n return KeyEventsPlugin.parseEventName(eventName) != null;\n }\n /**\n * Registers a handler for a specific element and key event.\n * @param element The HTML element to receive event notifications.\n * @param eventName The name of the key event to listen for.\n * @param handler A function to call when the notification occurs. Receives the\n * event object as an argument.\n * @returns The key event that was registered.\n */\n addEventListener(element, eventName, handler) {\n const parsedEvent = KeyEventsPlugin.parseEventName(eventName);\n const outsideHandler = KeyEventsPlugin.eventCallback(parsedEvent['fullKey'], handler, this.manager.getZone());\n return this.manager.getZone().runOutsideAngular(() => {\n return ɵgetDOM().onAndCancel(element, parsedEvent['domEventName'], outsideHandler);\n });\n }\n /**\n * Parses the user provided full keyboard event definition and normalizes it for\n * later internal use. It ensures the string is all lowercase, converts special\n * characters to a standard spelling, and orders all the values consistently.\n *\n * @param eventName The name of the key event to listen for.\n * @returns an object with the full, normalized string, and the dom event name\n * or null in the case when the event doesn't match a keyboard event.\n */\n static parseEventName(eventName) {\n const parts = eventName.toLowerCase().split('.');\n const domEventName = parts.shift();\n if (parts.length === 0 || !(domEventName === 'keydown' || domEventName === 'keyup')) {\n return null;\n }\n const key = KeyEventsPlugin._normalizeKey(parts.pop());\n let fullKey = '';\n let codeIX = parts.indexOf('code');\n if (codeIX > -1) {\n parts.splice(codeIX, 1);\n fullKey = 'code.';\n }\n MODIFIER_KEYS.forEach(modifierName => {\n const index = parts.indexOf(modifierName);\n if (index > -1) {\n parts.splice(index, 1);\n fullKey += modifierName + '.';\n }\n });\n fullKey += key;\n if (parts.length != 0 || key.length === 0) {\n // returning null instead of throwing to let another plugin process the event\n return null;\n }\n // NOTE: Please don't rewrite this as so, as it will break JSCompiler property renaming.\n // The code must remain in the `result['domEventName']` form.\n // return {domEventName, fullKey};\n const result = {};\n result['domEventName'] = domEventName;\n result['fullKey'] = fullKey;\n return result;\n }\n /**\n * Determines whether the actual keys pressed match the configured key code string.\n * The `fullKeyCode` event is normalized in the `parseEventName` method when the\n * event is attached to the DOM during the `addEventListener` call. This is unseen\n * by the end user and is normalized for internal consistency and parsing.\n *\n * @param event The keyboard event.\n * @param fullKeyCode The normalized user defined expected key event string\n * @returns boolean.\n */\n static matchEventFullKeyCode(event, fullKeyCode) {\n let keycode = _keyMap[event.key] || event.key;\n let key = '';\n if (fullKeyCode.indexOf('code.') > -1) {\n keycode = event.code;\n key = 'code.';\n }\n // the keycode could be unidentified so we have to check here\n if (keycode == null || !keycode) return false;\n keycode = keycode.toLowerCase();\n if (keycode === ' ') {\n keycode = 'space'; // for readability\n } else if (keycode === '.') {\n keycode = 'dot'; // because '.' is used as a separator in event names\n }\n\n MODIFIER_KEYS.forEach(modifierName => {\n if (modifierName !== keycode) {\n const modifierGetter = MODIFIER_KEY_GETTERS[modifierName];\n if (modifierGetter(event)) {\n key += modifierName + '.';\n }\n }\n });\n key += keycode;\n return key === fullKeyCode;\n }\n /**\n * Configures a handler callback for a key event.\n * @param fullKey The event name that combines all simultaneous keystrokes.\n * @param handler The function that responds to the key event.\n * @param zone The zone in which the event occurred.\n * @returns A callback function.\n */\n static eventCallback(fullKey, handler, zone) {\n return event => {\n if (KeyEventsPlugin.matchEventFullKeyCode(event, fullKey)) {\n zone.runGuarded(() => handler(event));\n }\n };\n }\n /** @internal */\n static _normalizeKey(keyName) {\n return keyName === 'esc' ? 'escape' : keyName;\n }\n static {\n this.ɵfac = function KeyEventsPlugin_Factory(t) {\n return new (t || KeyEventsPlugin)(i0.ɵɵinject(DOCUMENT));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: KeyEventsPlugin,\n factory: KeyEventsPlugin.ɵfac\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(KeyEventsPlugin, [{\n type: Injectable\n }], () => [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }], null);\n})();\n\n/**\n * Bootstraps an instance of an Angular application and renders a standalone component as the\n * application's root component. More information about standalone components can be found in [this\n * guide](guide/standalone-components).\n *\n * @usageNotes\n * The root component passed into this function *must* be a standalone one (should have the\n * `standalone: true` flag in the `@Component` decorator config).\n *\n * ```typescript\n * @Component({\n * standalone: true,\n * template: 'Hello world!'\n * })\n * class RootComponent {}\n *\n * const appRef: ApplicationRef = await bootstrapApplication(RootComponent);\n * ```\n *\n * You can add the list of providers that should be available in the application injector by\n * specifying the `providers` field in an object passed as the second argument:\n *\n * ```typescript\n * await bootstrapApplication(RootComponent, {\n * providers: [\n * {provide: BACKEND_URL, useValue: 'https://yourdomain.com/api'}\n * ]\n * });\n * ```\n *\n * The `importProvidersFrom` helper method can be used to collect all providers from any\n * existing NgModule (and transitively from all NgModules that it imports):\n *\n * ```typescript\n * await bootstrapApplication(RootComponent, {\n * providers: [\n * importProvidersFrom(SomeNgModule)\n * ]\n * });\n * ```\n *\n * Note: the `bootstrapApplication` method doesn't include [Testability](api/core/Testability) by\n * default. You can add [Testability](api/core/Testability) by getting the list of necessary\n * providers using `provideProtractorTestingSupport()` function and adding them into the `providers`\n * array, for example:\n *\n * ```typescript\n * import {provideProtractorTestingSupport} from '@angular/platform-browser';\n *\n * await bootstrapApplication(RootComponent, {providers: [provideProtractorTestingSupport()]});\n * ```\n *\n * @param rootComponent A reference to a standalone component that should be rendered.\n * @param options Extra configuration for the bootstrap operation, see `ApplicationConfig` for\n * additional info.\n * @returns A promise that returns an `ApplicationRef` instance once resolved.\n *\n * @publicApi\n */\nfunction bootstrapApplication(rootComponent, options) {\n return ɵinternalCreateApplication({\n rootComponent,\n ...createProvidersConfig(options)\n });\n}\n/**\n * Create an instance of an Angular application without bootstrapping any components. This is useful\n * for the situation where one wants to decouple application environment creation (a platform and\n * associated injectors) from rendering components on a screen. Components can be subsequently\n * bootstrapped on the returned `ApplicationRef`.\n *\n * @param options Extra configuration for the application environment, see `ApplicationConfig` for\n * additional info.\n * @returns A promise that returns an `ApplicationRef` instance once resolved.\n *\n * @publicApi\n */\nfunction createApplication(options) {\n return ɵinternalCreateApplication(createProvidersConfig(options));\n}\nfunction createProvidersConfig(options) {\n return {\n appProviders: [...BROWSER_MODULE_PROVIDERS, ...(options?.providers ?? [])],\n platformProviders: INTERNAL_BROWSER_PLATFORM_PROVIDERS\n };\n}\n/**\n * Returns a set of providers required to setup [Testability](api/core/Testability) for an\n * application bootstrapped using the `bootstrapApplication` function. The set of providers is\n * needed to support testing an application with Protractor (which relies on the Testability APIs\n * to be present).\n *\n * @returns An array of providers required to setup Testability for an application and make it\n * available for testing using Protractor.\n *\n * @publicApi\n */\nfunction provideProtractorTestingSupport() {\n // Return a copy to prevent changes to the original array in case any in-place\n // alterations are performed to the `provideProtractorTestingSupport` call results in app\n // code.\n return [...TESTABILITY_PROVIDERS];\n}\nfunction initDomAdapter() {\n BrowserDomAdapter.makeCurrent();\n}\nfunction errorHandler() {\n return new ErrorHandler();\n}\nfunction _document() {\n // Tell ivy about the global document\n ɵsetDocument(document);\n return document;\n}\nconst INTERNAL_BROWSER_PLATFORM_PROVIDERS = [{\n provide: PLATFORM_ID,\n useValue: ɵPLATFORM_BROWSER_ID\n}, {\n provide: PLATFORM_INITIALIZER,\n useValue: initDomAdapter,\n multi: true\n}, {\n provide: DOCUMENT,\n useFactory: _document,\n deps: []\n}];\n/**\n * A factory function that returns a `PlatformRef` instance associated with browser service\n * providers.\n *\n * @publicApi\n */\nconst platformBrowser = createPlatformFactory(platformCore, 'browser', INTERNAL_BROWSER_PLATFORM_PROVIDERS);\n/**\n * Internal marker to signal whether providers from the `BrowserModule` are already present in DI.\n * This is needed to avoid loading `BrowserModule` providers twice. We can't rely on the\n * `BrowserModule` presence itself, since the standalone-based bootstrap just imports\n * `BrowserModule` providers without referencing the module itself.\n */\nconst BROWSER_MODULE_PROVIDERS_MARKER = new InjectionToken(typeof ngDevMode === 'undefined' || ngDevMode ? 'BrowserModule Providers Marker' : '');\nconst TESTABILITY_PROVIDERS = [{\n provide: ɵTESTABILITY_GETTER,\n useClass: BrowserGetTestability,\n deps: []\n}, {\n provide: ɵTESTABILITY,\n useClass: Testability,\n deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]\n}, {\n provide: Testability,\n useClass: Testability,\n deps: [NgZone, TestabilityRegistry, ɵTESTABILITY_GETTER]\n}];\nconst BROWSER_MODULE_PROVIDERS = [{\n provide: ɵINJECTOR_SCOPE,\n useValue: 'root'\n}, {\n provide: ErrorHandler,\n useFactory: errorHandler,\n deps: []\n}, {\n provide: EVENT_MANAGER_PLUGINS,\n useClass: DomEventsPlugin,\n multi: true,\n deps: [DOCUMENT, NgZone, PLATFORM_ID]\n}, {\n provide: EVENT_MANAGER_PLUGINS,\n useClass: KeyEventsPlugin,\n multi: true,\n deps: [DOCUMENT]\n}, DomRendererFactory2, SharedStylesHost, EventManager, {\n provide: RendererFactory2,\n useExisting: DomRendererFactory2\n}, {\n provide: XhrFactory,\n useClass: BrowserXhr,\n deps: []\n}, typeof ngDevMode === 'undefined' || ngDevMode ? {\n provide: BROWSER_MODULE_PROVIDERS_MARKER,\n useValue: true\n} : []];\n/**\n * Exports required infrastructure for all Angular apps.\n * Included by default in all Angular apps created with the CLI\n * `new` command.\n * Re-exports `CommonModule` and `ApplicationModule`, making their\n * exports and providers available to all apps.\n *\n * @publicApi\n */\nclass BrowserModule {\n constructor(providersAlreadyPresent) {\n if ((typeof ngDevMode === 'undefined' || ngDevMode) && providersAlreadyPresent) {\n throw new ɵRuntimeError(5100 /* RuntimeErrorCode.BROWSER_MODULE_ALREADY_LOADED */, `Providers from the \\`BrowserModule\\` have already been loaded. If you need access ` + `to common directives such as NgIf and NgFor, import the \\`CommonModule\\` instead.`);\n }\n }\n /**\n * Configures a browser-based app to transition from a server-rendered app, if\n * one is present on the page.\n *\n * @param params An object containing an identifier for the app to transition.\n * The ID must match between the client and server versions of the app.\n * @returns The reconfigured `BrowserModule` to import into the app's root `AppModule`.\n *\n * @deprecated Use {@link APP_ID} instead to set the application ID.\n */\n static withServerTransition(params) {\n return {\n ngModule: BrowserModule,\n providers: [{\n provide: APP_ID,\n useValue: params.appId\n }]\n };\n }\n static {\n this.ɵfac = function BrowserModule_Factory(t) {\n return new (t || BrowserModule)(i0.ɵɵinject(BROWSER_MODULE_PROVIDERS_MARKER, 12));\n };\n }\n static {\n this.ɵmod = /* @__PURE__ */i0.ɵɵdefineNgModule({\n type: BrowserModule,\n exports: [CommonModule, ApplicationModule]\n });\n }\n static {\n this.ɵinj = /* @__PURE__ */i0.ɵɵdefineInjector({\n providers: [...BROWSER_MODULE_PROVIDERS, ...TESTABILITY_PROVIDERS],\n imports: [CommonModule, ApplicationModule]\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(BrowserModule, [{\n type: NgModule,\n args: [{\n providers: [...BROWSER_MODULE_PROVIDERS, ...TESTABILITY_PROVIDERS],\n exports: [CommonModule, ApplicationModule]\n }]\n }], () => [{\n type: undefined,\n decorators: [{\n type: Optional\n }, {\n type: SkipSelf\n }, {\n type: Inject,\n args: [BROWSER_MODULE_PROVIDERS_MARKER]\n }]\n }], null);\n})();\n\n/**\n * Factory to create a `Meta` service instance for the current DOM document.\n */\nfunction createMeta() {\n return new Meta(ɵɵinject(DOCUMENT));\n}\n/**\n * A service for managing HTML `` tags.\n *\n * Properties of the `MetaDefinition` object match the attributes of the\n * HTML `` tag. These tags define document metadata that is important for\n * things like configuring a Content Security Policy, defining browser compatibility\n * and security settings, setting HTTP Headers, defining rich content for social sharing,\n * and Search Engine Optimization (SEO).\n *\n * To identify specific `` tags in a document, use an attribute selection\n * string in the format `\"tag_attribute='value string'\"`.\n * For example, an `attrSelector` value of `\"name='description'\"` matches a tag\n * whose `name` attribute has the value `\"description\"`.\n * Selectors are used with the `querySelector()` Document method,\n * in the format `meta[{attrSelector}]`.\n *\n * @see [HTML meta tag](https://developer.mozilla.org/docs/Web/HTML/Element/meta)\n * @see [Document.querySelector()](https://developer.mozilla.org/docs/Web/API/Document/querySelector)\n *\n *\n * @publicApi\n */\nclass Meta {\n constructor(_doc) {\n this._doc = _doc;\n this._dom = ɵgetDOM();\n }\n /**\n * Retrieves or creates a specific `` tag element in the current HTML document.\n * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute\n * values in the provided tag definition, and verifies that all other attribute values are equal.\n * If an existing element is found, it is returned and is not modified in any way.\n * @param tag The definition of a `` element to match or create.\n * @param forceCreation True to create a new element without checking whether one already exists.\n * @returns The existing element with the same attributes and values if found,\n * the new element if no match is found, or `null` if the tag parameter is not defined.\n */\n addTag(tag, forceCreation = false) {\n if (!tag) return null;\n return this._getOrCreateElement(tag, forceCreation);\n }\n /**\n * Retrieves or creates a set of `` tag elements in the current HTML document.\n * In searching for an existing tag, Angular attempts to match the `name` or `property` attribute\n * values in the provided tag definition, and verifies that all other attribute values are equal.\n * @param tags An array of tag definitions to match or create.\n * @param forceCreation True to create new elements without checking whether they already exist.\n * @returns The matching elements if found, or the new elements.\n */\n addTags(tags, forceCreation = false) {\n if (!tags) return [];\n return tags.reduce((result, tag) => {\n if (tag) {\n result.push(this._getOrCreateElement(tag, forceCreation));\n }\n return result;\n }, []);\n }\n /**\n * Retrieves a `` tag element in the current HTML document.\n * @param attrSelector The tag attribute and value to match against, in the format\n * `\"tag_attribute='value string'\"`.\n * @returns The matching element, if any.\n */\n getTag(attrSelector) {\n if (!attrSelector) return null;\n return this._doc.querySelector(`meta[${attrSelector}]`) || null;\n }\n /**\n * Retrieves a set of `` tag elements in the current HTML document.\n * @param attrSelector The tag attribute and value to match against, in the format\n * `\"tag_attribute='value string'\"`.\n * @returns The matching elements, if any.\n */\n getTags(attrSelector) {\n if (!attrSelector) return [];\n const list /*NodeList*/ = this._doc.querySelectorAll(`meta[${attrSelector}]`);\n return list ? [].slice.call(list) : [];\n }\n /**\n * Modifies an existing `` tag element in the current HTML document.\n * @param tag The tag description with which to replace the existing tag content.\n * @param selector A tag attribute and value to match against, to identify\n * an existing tag. A string in the format `\"tag_attribute=`value string`\"`.\n * If not supplied, matches a tag with the same `name` or `property` attribute value as the\n * replacement tag.\n * @return The modified element.\n */\n updateTag(tag, selector) {\n if (!tag) return null;\n selector = selector || this._parseSelector(tag);\n const meta = this.getTag(selector);\n if (meta) {\n return this._setMetaElementAttributes(tag, meta);\n }\n return this._getOrCreateElement(tag, true);\n }\n /**\n * Removes an existing `` tag element from the current HTML document.\n * @param attrSelector A tag attribute and value to match against, to identify\n * an existing tag. A string in the format `\"tag_attribute=`value string`\"`.\n */\n removeTag(attrSelector) {\n this.removeTagElement(this.getTag(attrSelector));\n }\n /**\n * Removes an existing `` tag element from the current HTML document.\n * @param meta The tag definition to match against to identify an existing tag.\n */\n removeTagElement(meta) {\n if (meta) {\n this._dom.remove(meta);\n }\n }\n _getOrCreateElement(meta, forceCreation = false) {\n if (!forceCreation) {\n const selector = this._parseSelector(meta);\n // It's allowed to have multiple elements with the same name so it's not enough to\n // just check that element with the same name already present on the page. We also need to\n // check if element has tag attributes\n const elem = this.getTags(selector).filter(elem => this._containsAttributes(meta, elem))[0];\n if (elem !== undefined) return elem;\n }\n const element = this._dom.createElement('meta');\n this._setMetaElementAttributes(meta, element);\n const head = this._doc.getElementsByTagName('head')[0];\n head.appendChild(element);\n return element;\n }\n _setMetaElementAttributes(tag, el) {\n Object.keys(tag).forEach(prop => el.setAttribute(this._getMetaKeyMap(prop), tag[prop]));\n return el;\n }\n _parseSelector(tag) {\n const attr = tag.name ? 'name' : 'property';\n return `${attr}=\"${tag[attr]}\"`;\n }\n _containsAttributes(tag, elem) {\n return Object.keys(tag).every(key => elem.getAttribute(this._getMetaKeyMap(key)) === tag[key]);\n }\n _getMetaKeyMap(prop) {\n return META_KEYS_MAP[prop] || prop;\n }\n static {\n this.ɵfac = function Meta_Factory(t) {\n return new (t || Meta)(i0.ɵɵinject(DOCUMENT));\n };\n }\n static {\n this.ɵprov = /* @__PURE__ */i0.ɵɵdefineInjectable({\n token: Meta,\n factory: function Meta_Factory(t) {\n let r = null;\n if (t) {\n r = new t();\n } else {\n r = createMeta();\n }\n return r;\n },\n providedIn: 'root'\n });\n }\n}\n(() => {\n (typeof ngDevMode === \"undefined\" || ngDevMode) && i0.ɵsetClassMetadata(Meta, [{\n type: Injectable,\n args: [{\n providedIn: 'root',\n useFactory: createMeta,\n deps: []\n }]\n }], () => [{\n type: undefined,\n decorators: [{\n type: Inject,\n args: [DOCUMENT]\n }]\n }], null);\n})();\n/**\n * Mapping for MetaDefinition properties with their correct meta attribute names\n */\nconst META_KEYS_MAP = {\n httpEquiv: 'http-equiv'\n};\n\n/**\n * Factory to create Title service.\n */\nfunction createTitle() {\n return new Title(ɵɵinject(DOCUMENT));\n}\n/**\n * A service that can be used to get and set the title of a current HTML document.\n *\n * Since an Angular application can't be bootstrapped on the entire HTML document (`` tag)\n * it is not possible to bind to the `text` property of the `HTMLTitleElement` elements\n * (representing the `