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Angular 2 - a web framework for modern web apps

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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) { if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc); switch (arguments.length) { case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target); case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0); case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc); } }; var __metadata = (this && this.__metadata) || function (k, v) { if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v); }; import { Injectable } from 'angular2/src/core/di'; import { Compiler } from './compiler'; import { isPresent } from 'angular2/src/facade/lang'; import { AppViewManager } from 'angular2/src/core/linker/view_manager'; /** * Represents an instance of a Component created via {@link DynamicComponentLoader}. * * `ComponentRef` provides access to the Component Instance as well other objects related to this * Component Instance and allows you to destroy the Component Instance via the {@link #dispose} * method. */ export class ComponentRef { /** * The {@link ViewRef} of the Host View of this Component instance. */ get hostView() { return this.location.parentView; } /** * @internal * * The instance of the component. * * TODO(i): this api should be removed */ get hostComponent() { return this.instance; } } export class ComponentRef_ extends ComponentRef { /** * TODO(i): refactor into public/private fields */ constructor(location, instance, componentType, injector, _dispose) { super(); this._dispose = _dispose; this.location = location; this.instance = instance; this.componentType = componentType; this.injector = injector; } /** * @internal * * Returns the type of this Component instance. * * TODO(i): this api should be removed */ get hostComponentType() { return this.componentType; } dispose() { this._dispose(); } } /** * Service for instantiating a Component and attaching it to a View at a specified location. */ export class DynamicComponentLoader { } export let DynamicComponentLoader_ = class extends DynamicComponentLoader { constructor(_compiler, _viewManager) { super(); this._compiler = _compiler; this._viewManager = _viewManager; } loadAsRoot(type, overrideSelector, injector, onDispose) { return this._compiler.compileInHost(type).then(hostProtoViewRef => { var hostViewRef = this._viewManager.createRootHostView(hostProtoViewRef, overrideSelector, injector); var newLocation = this._viewManager.getHostElement(hostViewRef); var component = this._viewManager.getComponent(newLocation); var dispose = () => { if (isPresent(onDispose)) { onDispose(); } this._viewManager.destroyRootHostView(hostViewRef); }; return new ComponentRef_(newLocation, component, type, injector, dispose); }); } loadIntoLocation(type, hostLocation, anchorName, providers = null) { return this.loadNextToLocation(type, this._viewManager.getNamedElementInComponentView(hostLocation, anchorName), providers); } loadNextToLocation(type, location, providers = null) { return this._compiler.compileInHost(type).then(hostProtoViewRef => { var viewContainer = this._viewManager.getViewContainer(location); var hostViewRef = viewContainer.createHostView(hostProtoViewRef, viewContainer.length, providers); var newLocation = this._viewManager.getHostElement(hostViewRef); var component = this._viewManager.getComponent(newLocation); var dispose = () => { var index = viewContainer.indexOf(hostViewRef); if (index !== -1) { viewContainer.remove(index); } }; return new ComponentRef_(newLocation, component, type, null, dispose); }); } }; DynamicComponentLoader_ = __decorate([ Injectable(), __metadata('design:paramtypes', [Compiler, AppViewManager]) ], DynamicComponentLoader_); //# 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{Key, Injector, ResolvedProvider, Provider, provide, Injectable} from 'angular2/src/core/di';\nimport {Compiler} from './compiler';\nimport {isType, Type, stringify, isPresent} from 'angular2/src/facade/lang';\nimport {Promise} from 'angular2/src/facade/async';\nimport {AppViewManager} from 'angular2/src/core/linker/view_manager';\nimport {ElementRef} from './element_ref';\nimport {ViewRef, HostViewRef} from './view_ref';\n\n/**\n * Represents an instance of a Component created via {@link DynamicComponentLoader}.\n *\n * `ComponentRef` provides access to the Component Instance as well other objects related to this\n * Component Instance and allows you to destroy the Component Instance via the {@link #dispose}\n * method.\n */\nexport abstract class ComponentRef {\n  /**\n   * The injector provided {@link DynamicComponentLoader#loadAsRoot}.\n   *\n   * TODO(i): this api is useless and should be replaced by an injector retrieved from\n   *     the HostElementRef, which is currently not possible.\n   */\n  injector: Injector;\n\n  /**\n   * Location of the Host Element of this Component Instance.\n   */\n  location: ElementRef;\n\n  /**\n   * The instance of the Component.\n   */\n  instance: any;\n\n  /**\n   * The user defined component type, represented via the constructor function.\n   *\n   * <!-- TODO: customize wording for Dart docs -->\n   */\n  componentType: Type;\n\n  /**\n   * The {@link ViewRef} of the Host View of this Component instance.\n   */\n  get hostView(): HostViewRef { return this.location.parentView; }\n\n  /**\n   * @internal\n   *\n   * The instance of the component.\n   *\n   * TODO(i): this api should be removed\n   */\n  get hostComponent(): any { return this.instance; }\n\n  /**\n   * Destroys the component instance and all of the data structures associated with it.\n   *\n   * TODO(i): rename to destroy to be consistent with AppViewManager and ViewContainerRef\n   */\n  abstract dispose();\n}\n\nexport class ComponentRef_ extends ComponentRef {\n  /**\n   * TODO(i): refactor into public/private fields\n   */\n  constructor(location: ElementRef, instance: any, componentType: Type, injector: Injector,\n              private _dispose: () => void) {\n    super();\n    this.location = location;\n    this.instance = instance;\n    this.componentType = componentType;\n    this.injector = injector;\n  }\n\n  /**\n   * @internal\n   *\n   * Returns the type of this Component instance.\n   *\n   * TODO(i): this api should be removed\n   */\n  get hostComponentType(): Type { return this.componentType; }\n\n  dispose() { this._dispose(); }\n}\n\n/**\n * Service for instantiating a Component and attaching it to a View at a specified location.\n */\nexport abstract class DynamicComponentLoader {\n  /**\n   * Creates an instance of a Component `type` and attaches it to the first element in the\n   * platform-specific global view that matches the component's selector.\n   *\n   * In a browser the platform-specific global view is the main DOM Document.\n   *\n   * If needed, the component's selector can be overridden via `overrideSelector`.\n   *\n   * You can optionally provide `injector` and this {@link Injector} will be used to instantiate the\n   * Component.\n   *\n   * To be notified when this Component instance is destroyed, you can also optionally provide\n   * `onDispose` callback.\n   *\n   * Returns a promise for the {@link ComponentRef} representing the newly created Component.\n   *\n   * ### Example\n   *\n   * ```\n   * @Component({\n   *   selector: 'child-component',\n   *   template: 'Child'\n   * })\n   * class ChildComponent {\n   * }\n   *\n   * @Component({\n   *   selector: 'my-app',\n   *   template: 'Parent (<child id=\"child\"></child>)'\n   * })\n   * class MyApp {\n   *   constructor(dcl: DynamicComponentLoader, injector: Injector) {\n   *     dcl.loadAsRoot(ChildComponent, '#child', injector);\n   *   }\n   * }\n   *\n   * bootstrap(MyApp);\n   * ```\n   *\n   * Resulting DOM:\n   *\n   * ```\n   * <my-app>\n   *   Parent (\n   *     <child id=\"child\">Child</child>\n   *   )\n   * </my-app>\n   * ```\n   */\n  abstract loadAsRoot(type: Type, overrideSelector: string, injector: Injector,\n                      onDispose?: () => void): Promise<ComponentRef>;\n\n  /**\n   * Creates an instance of a Component and attaches it to a View Container located inside of the\n   * Component View of another Component instance.\n   *\n   * The targeted Component Instance is specified via its `hostLocation` {@link ElementRef}. The\n   * location within the Component View of this Component Instance is specified via `anchorName`\n   * Template Variable Name.\n   *\n   * You can optionally provide `providers` to configure the {@link Injector} provisioned for this\n   * Component Instance.\n   *\n   * Returns a promise for the {@link ComponentRef} representing the newly created Component.\n   *\n   * ### Example\n   *\n   * ```\n   * @Component({\n   *   selector: 'child-component',\n   *   template: 'Child'\n   * })\n   * class ChildComponent {\n   * }\n   *\n   * @Component({\n   *   selector: 'my-app',\n   *   template: 'Parent (<div #child></div>)'\n   * })\n   * class MyApp {\n   *   constructor(dcl: DynamicComponentLoader, elementRef: ElementRef) {\n   *     dcl.loadIntoLocation(ChildComponent, elementRef, 'child');\n   *   }\n   * }\n   *\n   * bootstrap(MyApp);\n   * ```\n   *\n   * Resulting DOM:\n   *\n   * ```\n   * <my-app>\n   *    Parent (\n   *      <div #child=\"\" class=\"ng-binding\"></div>\n   *      <child-component class=\"ng-binding\">Child</child-component>\n   *    )\n   * </my-app>\n   * ```\n   */\n  abstract loadIntoLocation(type: Type, hostLocation: ElementRef, anchorName: string,\n                            providers?: ResolvedProvider[]): Promise<ComponentRef>;\n\n  /**\n   * Creates an instance of a Component and attaches it to the View Container found at the\n   * `location` specified as {@link ElementRef}.\n   *\n   * You can optionally provide `providers` to configure the {@link Injector} provisioned for this\n   * Component Instance.\n   *\n   * Returns a promise for the {@link ComponentRef} representing the newly created Component.\n   *\n   *\n   * ### Example\n   *\n   * ```\n   * @Component({\n   *   selector: 'child-component',\n   *   template: 'Child'\n   * })\n   * class ChildComponent {\n   * }\n   *\n   * @Component({\n   *   selector: 'my-app',\n   *   template: 'Parent'\n   * })\n   * class MyApp {\n   *   constructor(dcl: DynamicComponentLoader, elementRef: ElementRef) {\n   *     dcl.loadNextToLocation(ChildComponent, elementRef);\n   *   }\n   * }\n   *\n   * bootstrap(MyApp);\n   * ```\n   *\n   * Resulting DOM:\n   *\n   * ```\n   * <my-app>Parent</my-app>\n   * <child-component>Child</child-component>\n   * ```\n   */\n  abstract loadNextToLocation(type: Type, location: ElementRef,\n                              providers?: ResolvedProvider[]): Promise<ComponentRef>;\n}\n\n@Injectable()\nexport class DynamicComponentLoader_ extends DynamicComponentLoader {\n  constructor(private _compiler: Compiler, private _viewManager: AppViewManager) { super(); }\n\n  loadAsRoot(type: Type, overrideSelector: string, injector: Injector,\n             onDispose?: () => void): Promise<ComponentRef> {\n    return this._compiler.compileInHost(type).then(hostProtoViewRef => {\n      var hostViewRef =\n          this._viewManager.createRootHostView(hostProtoViewRef, overrideSelector, injector);\n      var newLocation = this._viewManager.getHostElement(hostViewRef);\n      var component = this._viewManager.getComponent(newLocation);\n\n      var dispose = () => {\n        if (isPresent(onDispose)) {\n          onDispose();\n        }\n        this._viewManager.destroyRootHostView(hostViewRef);\n      };\n      return new ComponentRef_(newLocation, component, type, injector, dispose);\n    });\n  }\n\n  loadIntoLocation(type: Type, hostLocation: ElementRef, anchorName: string,\n                   providers: ResolvedProvider[] = null): Promise<ComponentRef> {\n    return this.loadNextToLocation(\n        type, this._viewManager.getNamedElementInComponentView(hostLocation, anchorName),\n        providers);\n  }\n\n  loadNextToLocation(type: Type, location: ElementRef,\n                     providers: ResolvedProvider[] = null): Promise<ComponentRef> {\n    return this._compiler.compileInHost(type).then(hostProtoViewRef => {\n      var viewContainer = this._viewManager.getViewContainer(location);\n      var hostViewRef =\n          viewContainer.createHostView(hostProtoViewRef, viewContainer.length, providers);\n      var newLocation = this._viewManager.getHostElement(hostViewRef);\n      var component = this._viewManager.getComponent(newLocation);\n\n      var dispose = () => {\n        var index = viewContainer.indexOf(<ViewRef>hostViewRef);\n        if (index !== -1) {\n          viewContainer.remove(index);\n        }\n      };\n      return new ComponentRef_(newLocation, component, type, null, dispose);\n    });\n  }\n}\n"]}