@angular/cdk/esm2022/portal/portal.mjs

/**
 * @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 { ElementRef, } from '@angular/core';
import { throwNullPortalOutletError, throwPortalAlreadyAttachedError, throwNoPortalAttachedError, throwNullPortalError, throwPortalOutletAlreadyDisposedError, throwUnknownPortalTypeError, } from './portal-errors';
/**
 * A `Portal` is something that you want to render somewhere else.
 * It can be attach to / detached from a `PortalOutlet`.
 */
export class Portal {
    /** Attach this portal to a host. */
    attach(host) {
        if (typeof ngDevMode === 'undefined' || ngDevMode) {
            if (host == null) {
                throwNullPortalOutletError();
            }
            if (host.hasAttached()) {
                throwPortalAlreadyAttachedError();
            }
        }
        this._attachedHost = host;
        return host.attach(this);
    }
    /** Detach this portal from its host */
    detach() {
        let host = this._attachedHost;
        if (host != null) {
            this._attachedHost = null;
            host.detach();
        }
        else if (typeof ngDevMode === 'undefined' || ngDevMode) {
            throwNoPortalAttachedError();
        }
    }
    /** Whether this portal is attached to a host. */
    get isAttached() {
        return this._attachedHost != null;
    }
    /**
     * Sets the PortalOutlet reference without performing `attach()`. This is used directly by
     * the PortalOutlet when it is performing an `attach()` or `detach()`.
     */
    setAttachedHost(host) {
        this._attachedHost = host;
    }
}
/**
 * A `ComponentPortal` is a portal that instantiates some Component upon attachment.
 */
export class ComponentPortal extends Portal {
    constructor(component, viewContainerRef, injector, componentFactoryResolver, projectableNodes) {
        super();
        this.component = component;
        this.viewContainerRef = viewContainerRef;
        this.injector = injector;
        this.componentFactoryResolver = componentFactoryResolver;
        this.projectableNodes = projectableNodes;
    }
}
/**
 * A `TemplatePortal` is a portal that represents some embedded template (TemplateRef).
 */
export class TemplatePortal extends Portal {
    constructor(
    /** The embedded template that will be used to instantiate an embedded View in the host. */
    templateRef, 
    /** Reference to the ViewContainer into which the template will be stamped out. */
    viewContainerRef, 
    /** Contextual data to be passed in to the embedded view. */
    context, 
    /** The injector to use for the embedded view. */
    injector) {
        super();
        this.templateRef = templateRef;
        this.viewContainerRef = viewContainerRef;
        this.context = context;
        this.injector = injector;
    }
    get origin() {
        return this.templateRef.elementRef;
    }
    /**
     * Attach the portal to the provided `PortalOutlet`.
     * When a context is provided it will override the `context` property of the `TemplatePortal`
     * instance.
     */
    attach(host, context = this.context) {
        this.context = context;
        return super.attach(host);
    }
    detach() {
        this.context = undefined;
        return super.detach();
    }
}
/**
 * A `DomPortal` is a portal whose DOM element will be taken from its current position
 * in the DOM and moved into a portal outlet, when it is attached. On detach, the content
 * will be restored to its original position.
 */
export class DomPortal extends Portal {
    constructor(element) {
        super();
        this.element = element instanceof ElementRef ? element.nativeElement : element;
    }
}
/**
 * Partial implementation of PortalOutlet that handles attaching
 * ComponentPortal and TemplatePortal.
 */
export class BasePortalOutlet {
    constructor() {
        /** Whether this host has already been permanently disposed. */
        this._isDisposed = false;
        // @breaking-change 10.0.0 `attachDomPortal` to become a required abstract method.
        this.attachDomPortal = null;
    }
    /** Whether this host has an attached portal. */
    hasAttached() {
        return !!this._attachedPortal;
    }
    /** Attaches a portal. */
    attach(portal) {
        if (typeof ngDevMode === 'undefined' || ngDevMode) {
            if (!portal) {
                throwNullPortalError();
            }
            if (this.hasAttached()) {
                throwPortalAlreadyAttachedError();
            }
            if (this._isDisposed) {
                throwPortalOutletAlreadyDisposedError();
            }
        }
        if (portal instanceof ComponentPortal) {
            this._attachedPortal = portal;
            return this.attachComponentPortal(portal);
        }
        else if (portal instanceof TemplatePortal) {
            this._attachedPortal = portal;
            return this.attachTemplatePortal(portal);
            // @breaking-change 10.0.0 remove null check for `this.attachDomPortal`.
        }
        else if (this.attachDomPortal && portal instanceof DomPortal) {
            this._attachedPortal = portal;
            return this.attachDomPortal(portal);
        }
        if (typeof ngDevMode === 'undefined' || ngDevMode) {
            throwUnknownPortalTypeError();
        }
    }
    /** Detaches a previously attached portal. */
    detach() {
        if (this._attachedPortal) {
            this._attachedPortal.setAttachedHost(null);
            this._attachedPortal = null;
        }
        this._invokeDisposeFn();
    }
    /** Permanently dispose of this portal host. */
    dispose() {
        if (this.hasAttached()) {
            this.detach();
        }
        this._invokeDisposeFn();
        this._isDisposed = true;
    }
    /** @docs-private */
    setDisposeFn(fn) {
        this._disposeFn = fn;
    }
    _invokeDisposeFn() {
        if (this._disposeFn) {
            this._disposeFn();
            this._disposeFn = null;
        }
    }
}
/**
 * @deprecated Use `BasePortalOutlet` instead.
 * @breaking-change 9.0.0
 */
export class BasePortalHost extends BasePortalOutlet {
}
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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 {\n  TemplateRef,\n  ViewContainerRef,\n  ElementRef,\n  ComponentRef,\n  EmbeddedViewRef,\n  Injector,\n  ComponentFactoryResolver,\n} from '@angular/core';\nimport {\n  throwNullPortalOutletError,\n  throwPortalAlreadyAttachedError,\n  throwNoPortalAttachedError,\n  throwNullPortalError,\n  throwPortalOutletAlreadyDisposedError,\n  throwUnknownPortalTypeError,\n} from './portal-errors';\n\n/** Interface that can be used to generically type a class. */\nexport interface ComponentType<T> {\n  new (...args: any[]): T;\n}\n\n/**\n * A `Portal` is something that you want to render somewhere else.\n * It can be attach to / detached from a `PortalOutlet`.\n */\nexport abstract class Portal<T> {\n  private _attachedHost: PortalOutlet | null;\n\n  /** Attach this portal to a host. */\n  attach(host: PortalOutlet): T {\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n      if (host == null) {\n        throwNullPortalOutletError();\n      }\n\n      if (host.hasAttached()) {\n        throwPortalAlreadyAttachedError();\n      }\n    }\n\n    this._attachedHost = host;\n    return <T>host.attach(this);\n  }\n\n  /** Detach this portal from its host */\n  detach(): void {\n    let host = this._attachedHost;\n\n    if (host != null) {\n      this._attachedHost = null;\n      host.detach();\n    } else if (typeof ngDevMode === 'undefined' || ngDevMode) {\n      throwNoPortalAttachedError();\n    }\n  }\n\n  /** Whether this portal is attached to a host. */\n  get isAttached(): boolean {\n    return this._attachedHost != null;\n  }\n\n  /**\n   * Sets the PortalOutlet reference without performing `attach()`. This is used directly by\n   * the PortalOutlet when it is performing an `attach()` or `detach()`.\n   */\n  setAttachedHost(host: PortalOutlet | null) {\n    this._attachedHost = host;\n  }\n}\n\n/**\n * A `ComponentPortal` is a portal that instantiates some Component upon attachment.\n */\nexport class ComponentPortal<T> extends Portal<ComponentRef<T>> {\n  /** The type of the component that will be instantiated for attachment. */\n  component: ComponentType<T>;\n\n  /**\n   * Where the attached component should live in Angular's *logical* component tree.\n   * This is different from where the component *renders*, which is determined by the PortalOutlet.\n   * The origin is necessary when the host is outside of the Angular application context.\n   */\n  viewContainerRef?: ViewContainerRef | null;\n\n  /** Injector used for the instantiation of the component. */\n  injector?: Injector | null;\n\n  /**\n   * Alternate `ComponentFactoryResolver` to use when resolving the associated component.\n   * Defaults to using the resolver from the outlet that the portal is attached to.\n   */\n  componentFactoryResolver?: ComponentFactoryResolver | null;\n\n  /**\n   * List of DOM nodes that should be projected through `<ng-content>` of the attached component.\n   */\n  projectableNodes?: Node[][] | null;\n\n  constructor(\n    component: ComponentType<T>,\n    viewContainerRef?: ViewContainerRef | null,\n    injector?: Injector | null,\n    componentFactoryResolver?: ComponentFactoryResolver | null,\n    projectableNodes?: Node[][] | null,\n  ) {\n    super();\n    this.component = component;\n    this.viewContainerRef = viewContainerRef;\n    this.injector = injector;\n    this.componentFactoryResolver = componentFactoryResolver;\n    this.projectableNodes = projectableNodes;\n  }\n}\n\n/**\n * A `TemplatePortal` is a portal that represents some embedded template (TemplateRef).\n */\nexport class TemplatePortal<C = any> extends Portal<EmbeddedViewRef<C>> {\n  constructor(\n    /** The embedded template that will be used to instantiate an embedded View in the host. */\n    public templateRef: TemplateRef<C>,\n    /** Reference to the ViewContainer into which the template will be stamped out. */\n    public viewContainerRef: ViewContainerRef,\n    /** Contextual data to be passed in to the embedded view. */\n    public context?: C,\n    /** The injector to use for the embedded view. */\n    public injector?: Injector,\n  ) {\n    super();\n  }\n\n  get origin(): ElementRef {\n    return this.templateRef.elementRef;\n  }\n\n  /**\n   * Attach the portal to the provided `PortalOutlet`.\n   * When a context is provided it will override the `context` property of the `TemplatePortal`\n   * instance.\n   */\n  override attach(host: PortalOutlet, context: C | undefined = this.context): EmbeddedViewRef<C> {\n    this.context = context;\n    return super.attach(host);\n  }\n\n  override detach(): void {\n    this.context = undefined;\n    return super.detach();\n  }\n}\n\n/**\n * A `DomPortal` is a portal whose DOM element will be taken from its current position\n * in the DOM and moved into a portal outlet, when it is attached. On detach, the content\n * will be restored to its original position.\n */\nexport class DomPortal<T = HTMLElement> extends Portal<T> {\n  /** DOM node hosting the portal's content. */\n  readonly element: T;\n\n  constructor(element: T | ElementRef<T>) {\n    super();\n    this.element = element instanceof ElementRef ? element.nativeElement : element;\n  }\n}\n\n/** A `PortalOutlet` is an space that can contain a single `Portal`. */\nexport interface PortalOutlet {\n  /** Attaches a portal to this outlet. */\n  attach(portal: Portal<any>): any;\n\n  /** Detaches the currently attached portal from this outlet. */\n  detach(): any;\n\n  /** Performs cleanup before the outlet is destroyed. */\n  dispose(): void;\n\n  /** Whether there is currently a portal attached to this outlet. */\n  hasAttached(): boolean;\n}\n\n/**\n * @deprecated Use `PortalOutlet` instead.\n * @breaking-change 9.0.0\n */\nexport type PortalHost = PortalOutlet;\n\n/**\n * Partial implementation of PortalOutlet that handles attaching\n * ComponentPortal and TemplatePortal.\n */\nexport abstract class BasePortalOutlet implements PortalOutlet {\n  /** The portal currently attached to the host. */\n  protected _attachedPortal: Portal<any> | null;\n\n  /** A function that will permanently dispose this host. */\n  private _disposeFn: (() => void) | null;\n\n  /** Whether this host has already been permanently disposed. */\n  private _isDisposed: boolean = false;\n\n  /** Whether this host has an attached portal. */\n  hasAttached(): boolean {\n    return !!this._attachedPortal;\n  }\n\n  attach<T>(portal: ComponentPortal<T>): ComponentRef<T>;\n  attach<T>(portal: TemplatePortal<T>): EmbeddedViewRef<T>;\n  attach(portal: any): any;\n\n  /** Attaches a portal. */\n  attach(portal: Portal<any>): any {\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n      if (!portal) {\n        throwNullPortalError();\n      }\n\n      if (this.hasAttached()) {\n        throwPortalAlreadyAttachedError();\n      }\n\n      if (this._isDisposed) {\n        throwPortalOutletAlreadyDisposedError();\n      }\n    }\n\n    if (portal instanceof ComponentPortal) {\n      this._attachedPortal = portal;\n      return this.attachComponentPortal(portal);\n    } else if (portal instanceof TemplatePortal) {\n      this._attachedPortal = portal;\n      return this.attachTemplatePortal(portal);\n      // @breaking-change 10.0.0 remove null check for `this.attachDomPortal`.\n    } else if (this.attachDomPortal && portal instanceof DomPortal) {\n      this._attachedPortal = portal;\n      return this.attachDomPortal(portal);\n    }\n\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n      throwUnknownPortalTypeError();\n    }\n  }\n\n  abstract attachComponentPortal<T>(portal: ComponentPortal<T>): ComponentRef<T>;\n\n  abstract attachTemplatePortal<C>(portal: TemplatePortal<C>): EmbeddedViewRef<C>;\n\n  // @breaking-change 10.0.0 `attachDomPortal` to become a required abstract method.\n  readonly attachDomPortal: null | ((portal: DomPortal) => any) = null;\n\n  /** Detaches a previously attached portal. */\n  detach(): void {\n    if (this._attachedPortal) {\n      this._attachedPortal.setAttachedHost(null);\n      this._attachedPortal = null;\n    }\n\n    this._invokeDisposeFn();\n  }\n\n  /** Permanently dispose of this portal host. */\n  dispose(): void {\n    if (this.hasAttached()) {\n      this.detach();\n    }\n\n    this._invokeDisposeFn();\n    this._isDisposed = true;\n  }\n\n  /** @docs-private */\n  setDisposeFn(fn: () => void) {\n    this._disposeFn = fn;\n  }\n\n  private _invokeDisposeFn() {\n    if (this._disposeFn) {\n      this._disposeFn();\n      this._disposeFn = null;\n    }\n  }\n}\n\n/**\n * @deprecated Use `BasePortalOutlet` instead.\n * @breaking-change 9.0.0\n */\nexport abstract class BasePortalHost extends BasePortalOutlet {}\n"]}