/**
 * A `ComponentPortal` is a portal that instantiates some Component upon attachment.
 */
export class ComponentPortal {
    _attachedHost;
    /** The type of the component that will be instantiated for attachment. */
    component;
    /**
     * [Optional] Where the attached component should live in Angular's *logical* component tree.
     * This is different from where the component *renders*, which is determined by the PortalHost.
     * The origin necessary when the host is outside of the Angular application context.
     */
    viewContainerRef;
    /** Injector used for the instantiation of the component. */
    injector;
    constructor(component, injector) {
        this.component = component;
        this.injector = injector;
    }
    /** Attach this portal to a host. */
    attach(host, newestOnTop) {
        this._attachedHost = host;
        return host.attach(this, newestOnTop);
    }
    /** Detach this portal from its host */
    detach() {
        const host = this._attachedHost;
        if (host) {
            this._attachedHost = undefined;
            return host.detach();
        }
    }
    /** Whether this portal is attached to a host. */
    get isAttached() {
        return this._attachedHost != null;
    }
    /**
     * Sets the PortalHost reference without performing `attach()`. This is used directly by
     * the PortalHost when it is performing an `attach()` or `detach()`.
     */
    setAttachedHost(host) {
        this._attachedHost = host;
    }
}
/**
 * Partial implementation of PortalHost that only deals with attaching a
 * ComponentPortal
 */
export class BasePortalHost {
    /** The portal currently attached to the host. */
    _attachedPortal;
    /** A function that will permanently dispose this host. */
    _disposeFn;
    attach(portal, newestOnTop) {
        this._attachedPortal = portal;
        return this.attachComponentPortal(portal, newestOnTop);
    }
    detach() {
        if (this._attachedPortal) {
            this._attachedPortal.setAttachedHost();
        }
        this._attachedPortal = undefined;
        if (this._disposeFn) {
            this._disposeFn();
            this._disposeFn = undefined;
        }
    }
    setDisposeFn(fn) {
        this._disposeFn = fn;
    }
}
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