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@angular/platform-browser

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Angular - library for using Angular in a web browser

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/** * @license * Copyright Google LLC All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import { APP_ID, Inject, Injectable, RendererStyleFlags2, ViewEncapsulation } from '@angular/core'; import { EventManager } from './events/event_manager'; import { DomSharedStylesHost } from './shared_styles_host'; import * as i0 from "@angular/core"; import * as i1 from "./events/event_manager"; import * as i2 from "./shared_styles_host"; export 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/', }; const COMPONENT_REGEX = /%COMP%/g; const NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode; export const COMPONENT_VARIABLE = '%COMP%'; export const HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`; export const CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`; export function shimContentAttribute(componentShortId) { return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId); } export function shimHostAttribute(componentShortId) { return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId); } export function flattenStyles(compId, styles, target) { for (let i = 0; i < styles.length; i++) { let style = styles[i]; if (Array.isArray(style)) { flattenStyles(compId, style, target); } else { style = style.replace(COMPONENT_REGEX, compId); target.push(style); } } return target; } 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; }; } let hasLoggedNativeEncapsulationWarning = false; export class DomRendererFactory2 { constructor(eventManager, sharedStylesHost, appId) { this.eventManager = eventManager; this.sharedStylesHost = sharedStylesHost; this.appId = appId; this.rendererByCompId = new Map(); this.defaultRenderer = new DefaultDomRenderer2(eventManager); } createRenderer(element, type) { if (!element || !type) { return this.defaultRenderer; } switch (type.encapsulation) { case ViewEncapsulation.Emulated: { let renderer = this.rendererByCompId.get(type.id); if (!renderer) { renderer = new EmulatedEncapsulationDomRenderer2(this.eventManager, this.sharedStylesHost, type, this.appId); this.rendererByCompId.set(type.id, renderer); } renderer.applyToHost(element); return renderer; } // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an enum // value that is not known (but previously was the value for ViewEncapsulation.Native) case 1: case ViewEncapsulation.ShadowDom: // TODO(FW-2290): remove the `case 1:` fallback logic and the warning in v12. if ((typeof ngDevMode === 'undefined' || ngDevMode) && // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an // enum value that is not known (but previously was the value for // ViewEncapsulation.Native) !hasLoggedNativeEncapsulationWarning && type.encapsulation === 1) { hasLoggedNativeEncapsulationWarning = true; console.warn('ViewEncapsulation.Native is no longer supported. Falling back to ViewEncapsulation.ShadowDom. The fallback will be removed in v12.'); } return new ShadowDomRenderer(this.eventManager, this.sharedStylesHost, element, type); default: { if (!this.rendererByCompId.has(type.id)) { const styles = flattenStyles(type.id, type.styles, []); this.sharedStylesHost.addStyles(styles); this.rendererByCompId.set(type.id, this.defaultRenderer); } return this.defaultRenderer; } } } begin() { } end() { } } DomRendererFactory2.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.0.3", ngImport: i0, type: DomRendererFactory2, deps: [{ token: i1.EventManager }, { token: i2.DomSharedStylesHost }, { token: APP_ID }], target: i0.ɵɵFactoryTarget.Injectable }); DomRendererFactory2.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.0.3", ngImport: i0, type: DomRendererFactory2 }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.0.3", ngImport: i0, type: DomRendererFactory2, decorators: [{ type: Injectable }], ctorParameters: function () { return [{ type: i1.EventManager }, { type: i2.DomSharedStylesHost }, { type: undefined, decorators: [{ type: Inject, args: [APP_ID] }] }]; } }); class DefaultDomRenderer2 { constructor(eventManager) { this.eventManager = eventManager; this.data = Object.create(null); this.destroyNode = null; } destroy() { } createElement(name, namespace) { if (namespace) { // In cases where Ivy (not ViewEngine) is giving us the actual namespace, the look up by key // will result in undefined, so we just return the namespace here. 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) { parent.appendChild(newChild); } insertBefore(parent, newChild, refChild) { if (parent) { parent.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 "${selectorOrNode}" did not match any elements`); } if (!preserveContent) { el.textContent = ''; } return el; } parentNode(node) { return node.parentNode; } nextSibling(node) { return node.nextSibling; } setAttribute(el, name, value, namespace) { if (namespace) { name = namespace + ':' + name; // TODO(FW-811): Ivy may cause issues here because it's passing around // full URIs for namespaces, therefore this lookup will fail. const namespaceUri = NAMESPACE_URIS[namespace]; if (namespaceUri) { el.setAttributeNS(namespaceUri, name, value); } else { el.setAttribute(name, value); } } else { el.setAttribute(name, value); } } removeAttribute(el, name, namespace) { if (namespace) { // TODO(FW-811): Ivy may cause issues here because it's passing around // full URIs for namespaces, therefore this lookup will fail. const namespaceUri = NAMESPACE_URIS[namespace]; if (namespaceUri) { el.removeAttributeNS(namespaceUri, name); } else { // TODO(FW-811): Since ivy is passing around full URIs for namespaces // this could result in properties like `http://www.w3.org/2000/svg:cx="123"`, // which is wrong. el.removeAttribute(`${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) { el.style.removeProperty(style); } else { // IE requires '' instead of null // see https://github.com/angular/angular/issues/7916 el.style[style] = ''; } } setProperty(el, name, value) { NG_DEV_MODE && checkNoSyntheticProp(name, 'property'); el[name] = value; } setValue(node, value) { node.nodeValue = value; } listen(target, event, callback) { NG_DEV_MODE && 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).`); } } class EmulatedEncapsulationDomRenderer2 extends DefaultDomRenderer2 { constructor(eventManager, sharedStylesHost, component, appId) { super(eventManager); this.component = component; const styles = flattenStyles(appId + '-' + component.id, component.styles, []); sharedStylesHost.addStyles(styles); this.contentAttr = shimContentAttribute(appId + '-' + component.id); this.hostAttr = shimHostAttribute(appId + '-' + component.id); } applyToHost(element) { super.setAttribute(element, this.hostAttr, ''); } createElement(parent, name) { const el = super.createElement(parent, name); super.setAttribute(el, this.contentAttr, ''); return el; } } 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 (let i = 0; i < styles.length; i++) { const styleEl = document.createElement('style'); styleEl.textContent = styles[i]; this.shadowRoot.appendChild(styleEl); } } nodeOrShadowRoot(node) { return node === this.hostEl ? this.shadowRoot : node; } destroy() { this.sharedStylesHost.removeHost(this.shadowRoot); } 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))); } } //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport {APP_ID, Inject, Injectable, Renderer2, RendererFactory2, RendererStyleFlags2, RendererType2, ViewEncapsulation} from '@angular/core';\n\nimport {EventManager} from './events/event_manager';\nimport {DomSharedStylesHost} from './shared_styles_host';\n\nexport const NAMESPACE_URIS: {[ns: string]: string} = {\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};\n\nconst COMPONENT_REGEX = /%COMP%/g;\nconst NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode;\n\nexport const COMPONENT_VARIABLE = '%COMP%';\nexport const HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\nexport const CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\n\nexport function shimContentAttribute(componentShortId: string): string {\n  return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\n\nexport function shimHostAttribute(componentShortId: string): string {\n  return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\n\nexport function flattenStyles(\n    compId: string, styles: Array<any|any[]>, target: string[]): string[] {\n  for (let i = 0; i < styles.length; i++) {\n    let style = styles[i];\n\n    if (Array.isArray(style)) {\n      flattenStyles(compId, style, target);\n    } else {\n      style = style.replace(COMPONENT_REGEX, compId);\n      target.push(style);\n    }\n  }\n  return target;\n}\n\nfunction decoratePreventDefault(eventHandler: Function): Function {\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 the\n  // two differently. In the first case, the special '__ngUnwrap__' token is passed to the unwrap\n  // the listener (see below).\n  return (event: any) => {\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 debug_node\n    // can inspect the listener toString contents for the existence of this special token. Because\n    // the token is a string literal, it is ensured to not be modified by compiled code.\n    if (event === '__ngUnwrap__') {\n      return eventHandler;\n    }\n\n    const allowDefaultBehavior = eventHandler(event);\n    if (allowDefaultBehavior === false) {\n      // TODO(tbosch): move preventDefault into event plugins...\n      event.preventDefault();\n      event.returnValue = false;\n    }\n\n    return undefined;\n  };\n}\n\nlet hasLoggedNativeEncapsulationWarning = false;\n\n@Injectable()\nexport class DomRendererFactory2 implements RendererFactory2 {\n  private rendererByCompId = new Map<string, Renderer2>();\n  private defaultRenderer: Renderer2;\n\n  constructor(\n      private eventManager: EventManager, private sharedStylesHost: DomSharedStylesHost,\n      @Inject(APP_ID) private appId: string) {\n    this.defaultRenderer = new DefaultDomRenderer2(eventManager);\n  }\n\n  createRenderer(element: any, type: RendererType2|null): Renderer2 {\n    if (!element || !type) {\n      return this.defaultRenderer;\n    }\n    switch (type.encapsulation) {\n      case ViewEncapsulation.Emulated: {\n        let renderer = this.rendererByCompId.get(type.id);\n        if (!renderer) {\n          renderer = new EmulatedEncapsulationDomRenderer2(\n              this.eventManager, this.sharedStylesHost, type, this.appId);\n          this.rendererByCompId.set(type.id, renderer);\n        }\n        (<EmulatedEncapsulationDomRenderer2>renderer).applyToHost(element);\n        return renderer;\n      }\n      // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an enum\n      // value that is not known (but previously was the value for ViewEncapsulation.Native)\n      case 1:\n      case ViewEncapsulation.ShadowDom:\n        // TODO(FW-2290): remove the `case 1:` fallback logic and the warning in v12.\n        if ((typeof ngDevMode === 'undefined' || ngDevMode) &&\n            // @ts-ignore TODO: Remove as part of FW-2290. TS complains about us dealing with an\n            // enum value that is not known (but previously was the value for\n            // ViewEncapsulation.Native)\n            !hasLoggedNativeEncapsulationWarning && type.encapsulation === 1) {\n          hasLoggedNativeEncapsulationWarning = true;\n          console.warn(\n              'ViewEncapsulation.Native is no longer supported. Falling back to ViewEncapsulation.ShadowDom. The fallback will be removed in v12.');\n        }\n\n        return new ShadowDomRenderer(this.eventManager, this.sharedStylesHost, element, type);\n      default: {\n        if (!this.rendererByCompId.has(type.id)) {\n          const styles = flattenStyles(type.id, type.styles, []);\n          this.sharedStylesHost.addStyles(styles);\n          this.rendererByCompId.set(type.id, this.defaultRenderer);\n        }\n        return this.defaultRenderer;\n      }\n    }\n  }\n\n  begin() {}\n  end() {}\n}\n\nclass DefaultDomRenderer2 implements Renderer2 {\n  data: {[key: string]: any} = Object.create(null);\n\n  constructor(private eventManager: EventManager) {}\n\n  destroy(): void {}\n\n  destroyNode = null;\n\n  createElement(name: string, namespace?: string): any {\n    if (namespace) {\n      // In cases where Ivy (not ViewEngine) is giving us the actual namespace, the look up by key\n      // will result in undefined, so we just return the namespace here.\n      return document.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);\n    }\n\n    return document.createElement(name);\n  }\n\n  createComment(value: string): any {\n    return document.createComment(value);\n  }\n\n  createText(value: string): any {\n    return document.createTextNode(value);\n  }\n\n  appendChild(parent: any, newChild: any): void {\n    parent.appendChild(newChild);\n  }\n\n  insertBefore(parent: any, newChild: any, refChild: any): void {\n    if (parent) {\n      parent.insertBefore(newChild, refChild);\n    }\n  }\n\n  removeChild(parent: any, oldChild: any): void {\n    if (parent) {\n      parent.removeChild(oldChild);\n    }\n  }\n\n  selectRootElement(selectorOrNode: string|any, preserveContent?: boolean): any {\n    let el: any = typeof selectorOrNode === 'string' ? document.querySelector(selectorOrNode) :\n                                                       selectorOrNode;\n    if (!el) {\n      throw new Error(`The selector \"${selectorOrNode}\" did not match any elements`);\n    }\n    if (!preserveContent) {\n      el.textContent = '';\n    }\n    return el;\n  }\n\n  parentNode(node: any): any {\n    return node.parentNode;\n  }\n\n  nextSibling(node: any): any {\n    return node.nextSibling;\n  }\n\n  setAttribute(el: any, name: string, value: string, namespace?: string): void {\n    if (namespace) {\n      name = namespace + ':' + name;\n      // TODO(FW-811): Ivy may cause issues here because it's passing around\n      // full URIs for namespaces, therefore this lookup will fail.\n      const namespaceUri = NAMESPACE_URIS[namespace];\n      if (namespaceUri) {\n        el.setAttributeNS(namespaceUri, name, value);\n      } else {\n        el.setAttribute(name, value);\n      }\n    } else {\n      el.setAttribute(name, value);\n    }\n  }\n\n  removeAttribute(el: any, name: string, namespace?: string): void {\n    if (namespace) {\n      // TODO(FW-811): Ivy may cause issues here because it's passing around\n      // full URIs for namespaces, therefore this lookup will fail.\n      const namespaceUri = NAMESPACE_URIS[namespace];\n      if (namespaceUri) {\n        el.removeAttributeNS(namespaceUri, name);\n      } else {\n        // TODO(FW-811): Since ivy is passing around full URIs for namespaces\n        // this could result in properties like `http://www.w3.org/2000/svg:cx=\"123\"`,\n        // which is wrong.\n        el.removeAttribute(`${namespace}:${name}`);\n      }\n    } else {\n      el.removeAttribute(name);\n    }\n  }\n\n  addClass(el: any, name: string): void {\n    el.classList.add(name);\n  }\n\n  removeClass(el: any, name: string): void {\n    el.classList.remove(name);\n  }\n\n  setStyle(el: any, style: string, value: any, flags: RendererStyleFlags2): void {\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\n  removeStyle(el: any, style: string, flags: RendererStyleFlags2): void {\n    if (flags & RendererStyleFlags2.DashCase) {\n      el.style.removeProperty(style);\n    } else {\n      // IE requires '' instead of null\n      // see https://github.com/angular/angular/issues/7916\n      el.style[style] = '';\n    }\n  }\n\n  setProperty(el: any, name: string, value: any): void {\n    NG_DEV_MODE && checkNoSyntheticProp(name, 'property');\n    el[name] = value;\n  }\n\n  setValue(node: any, value: string): void {\n    node.nodeValue = value;\n  }\n\n  listen(target: 'window'|'document'|'body'|any, event: string, callback: (event: any) => boolean):\n      () => void {\n    NG_DEV_MODE && checkNoSyntheticProp(event, 'listener');\n    if (typeof target === 'string') {\n      return <() => void>this.eventManager.addGlobalEventListener(\n          target, event, decoratePreventDefault(callback));\n    }\n    return <() => void>this.eventManager.addEventListener(\n               target, event, decoratePreventDefault(callback)) as () => void;\n  }\n}\n\nconst AT_CHARCODE = (() => '@'.charCodeAt(0))();\nfunction checkNoSyntheticProp(name: string, nameKind: string) {\n  if (name.charCodeAt(0) === AT_CHARCODE) {\n    throw new Error(`Unexpected synthetic ${nameKind} ${name} found. Please make sure that:\n  - Either \\`BrowserAnimationsModule\\` or \\`NoopAnimationsModule\\` are imported in your application.\n  - There is corresponding configuration for the animation named \\`${\n        name}\\` defined in the \\`animations\\` field of the \\`@Component\\` decorator (see https://angular.io/api/core/Component#animations).`);\n  }\n}\n\nclass EmulatedEncapsulationDomRenderer2 extends DefaultDomRenderer2 {\n  private contentAttr: string;\n  private hostAttr: string;\n\n  constructor(\n      eventManager: EventManager, sharedStylesHost: DomSharedStylesHost,\n      private component: RendererType2, appId: string) {\n    super(eventManager);\n    const styles = flattenStyles(appId + '-' + component.id, component.styles, []);\n    sharedStylesHost.addStyles(styles);\n\n    this.contentAttr = shimContentAttribute(appId + '-' + component.id);\n    this.hostAttr = shimHostAttribute(appId + '-' + component.id);\n  }\n\n  applyToHost(element: any) {\n    super.setAttribute(element, this.hostAttr, '');\n  }\n\n  override createElement(parent: any, name: string): Element {\n    const el = super.createElement(parent, name);\n    super.setAttribute(el, this.contentAttr, '');\n    return el;\n  }\n}\n\nclass ShadowDomRenderer extends DefaultDomRenderer2 {\n  private shadowRoot: any;\n\n  constructor(\n      eventManager: EventManager, private sharedStylesHost: DomSharedStylesHost,\n      private hostEl: any, component: RendererType2) {\n    super(eventManager);\n    this.shadowRoot = (hostEl as any).attachShadow({mode: 'open'});\n    this.sharedStylesHost.addHost(this.shadowRoot);\n    const styles = flattenStyles(component.id, component.styles, []);\n    for (let i = 0; i < styles.length; i++) {\n      const styleEl = document.createElement('style');\n      styleEl.textContent = styles[i];\n      this.shadowRoot.appendChild(styleEl);\n    }\n  }\n\n  private nodeOrShadowRoot(node: any): any {\n    return node === this.hostEl ? this.shadowRoot : node;\n  }\n\n  override destroy() {\n    this.sharedStylesHost.removeHost(this.shadowRoot);\n  }\n\n  override appendChild(parent: any, newChild: any): void {\n    return super.appendChild(this.nodeOrShadowRoot(parent), newChild);\n  }\n  override insertBefore(parent: any, newChild: any, refChild: any): void {\n    return super.insertBefore(this.nodeOrShadowRoot(parent), newChild, refChild);\n  }\n  override removeChild(parent: any, oldChild: any): void {\n    return super.removeChild(this.nodeOrShadowRoot(parent), oldChild);\n  }\n  override parentNode(node: any): any {\n    return this.nodeOrShadowRoot(super.parentNode(this.nodeOrShadowRoot(node)));\n  }\n}\n"]}