@angular/cdk
Version:
Angular Material Component Development Kit
85 lines • 12.9 kB
JavaScript
/**
* @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 { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';
import { Subject } from 'rxjs';
/**
* Reference to a dialog opened via the Dialog service.
*/
export class DialogRef {
constructor(overlayRef, config) {
this.overlayRef = overlayRef;
this.config = config;
/** Emits when the dialog has been closed. */
this.closed = new Subject();
this.disableClose = config.disableClose;
this.backdropClick = overlayRef.backdropClick();
this.keydownEvents = overlayRef.keydownEvents();
this.outsidePointerEvents = overlayRef.outsidePointerEvents();
this.id = config.id; // By the time the dialog is created we are guaranteed to have an ID.
this.keydownEvents.subscribe(event => {
if (event.keyCode === ESCAPE && !this.disableClose && !hasModifierKey(event)) {
event.preventDefault();
this.close(undefined, { focusOrigin: 'keyboard' });
}
});
this.backdropClick.subscribe(() => {
if (!this.disableClose) {
this.close(undefined, { focusOrigin: 'mouse' });
}
});
this._detachSubscription = overlayRef.detachments().subscribe(() => {
// Check specifically for `false`, because we want `undefined` to be treated like `true`.
if (config.closeOnOverlayDetachments !== false) {
this.close();
}
});
}
/**
* Close the dialog.
* @param result Optional result to return to the dialog opener.
* @param options Additional options to customize the closing behavior.
*/
close(result, options) {
if (this.containerInstance) {
const closedSubject = this.closed;
this.containerInstance._closeInteractionType = options?.focusOrigin || 'program';
// Drop the detach subscription first since it can be triggered by the
// `dispose` call and override the result of this closing sequence.
this._detachSubscription.unsubscribe();
this.overlayRef.dispose();
closedSubject.next(result);
closedSubject.complete();
this.componentInstance = this.containerInstance = null;
}
}
/** Updates the position of the dialog based on the current position strategy. */
updatePosition() {
this.overlayRef.updatePosition();
return this;
}
/**
* Updates the dialog's width and height.
* @param width New width of the dialog.
* @param height New height of the dialog.
*/
updateSize(width = '', height = '') {
this.overlayRef.updateSize({ width, height });
return this;
}
/** Add a CSS class or an array of classes to the overlay pane. */
addPanelClass(classes) {
this.overlayRef.addPanelClass(classes);
return this;
}
/** Remove a CSS class or an array of classes from the overlay pane. */
removePanelClass(classes) {
this.overlayRef.removePanelClass(classes);
return this;
}
}
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Will be\n   * null when the dialog is opened using a `TemplateRef`.\n   */\n  readonly componentInstance: C | null;\n\n  /** Instance of the container that is rendering out the dialog content. */\n  readonly containerInstance: BasePortalOutlet & {_closeInteractionType?: FocusOrigin};\n\n  /** Whether the user is allowed to close the dialog. */\n  disableClose: boolean | undefined;\n\n  /** Emits when the dialog has been closed. */\n  readonly closed: Observable<R | undefined> = new Subject<R | undefined>();\n\n  /** Emits when the backdrop of the dialog is clicked. */\n  readonly backdropClick: Observable<MouseEvent>;\n\n  /** Emits when on keyboard events within the dialog. */\n  readonly keydownEvents: Observable<KeyboardEvent>;\n\n  /** Emits on pointer events that happen outside of the dialog. */\n  readonly outsidePointerEvents: Observable<MouseEvent>;\n\n  /** Unique ID for the dialog. */\n  readonly id: string;\n\n  /** Subscription to external detachments of the dialog. */\n  private _detachSubscription: Subscription;\n\n  constructor(\n    readonly overlayRef: OverlayRef,\n    readonly config: DialogConfig<any, DialogRef<R, C>, BasePortalOutlet>,\n  ) {\n    this.disableClose = config.disableClose;\n    this.backdropClick = overlayRef.backdropClick();\n    this.keydownEvents = overlayRef.keydownEvents();\n    this.outsidePointerEvents = overlayRef.outsidePointerEvents();\n    this.id = config.id!; // By the time the dialog is created we are guaranteed to have an ID.\n\n    this.keydownEvents.subscribe(event => {\n      if (event.keyCode === ESCAPE && !this.disableClose && !hasModifierKey(event)) {\n        event.preventDefault();\n        this.close(undefined, {focusOrigin: 'keyboard'});\n      }\n    });\n\n    this.backdropClick.subscribe(() => {\n      if (!this.disableClose) {\n        this.close(undefined, {focusOrigin: 'mouse'});\n      }\n    });\n\n    this._detachSubscription = overlayRef.detachments().subscribe(() => {\n      // Check specifically for `false`, because we want `undefined` to be treated like `true`.\n      if (config.closeOnOverlayDetachments !== false) {\n        this.close();\n      }\n    });\n  }\n\n  /**\n   * Close the dialog.\n   * @param result Optional result to return to the dialog opener.\n   * @param options Additional options to customize the closing behavior.\n   */\n  close(result?: R, options?: DialogCloseOptions): void {\n    if (this.containerInstance) {\n      const closedSubject = this.closed as Subject<R | undefined>;\n      this.containerInstance._closeInteractionType = options?.focusOrigin || 'program';\n      // Drop the detach subscription first since it can be triggered by the\n      // `dispose` call and override the result of this closing sequence.\n      this._detachSubscription.unsubscribe();\n      this.overlayRef.dispose();\n      closedSubject.next(result);\n      closedSubject.complete();\n      (this as {componentInstance: C}).componentInstance = (\n        this as {containerInstance: BasePortalOutlet}\n      ).containerInstance = null!;\n    }\n  }\n\n  /** Updates the position of the dialog based on the current position strategy. */\n  updatePosition(): this {\n    this.overlayRef.updatePosition();\n    return this;\n  }\n\n  /**\n   * Updates the dialog's width and height.\n   * @param width New width of the dialog.\n   * @param height New height of the dialog.\n   */\n  updateSize(width: string | number = '', height: string | number = ''): this {\n    this.overlayRef.updateSize({width, height});\n    return this;\n  }\n\n  /** Add a CSS class or an array of classes to the overlay pane. */\n  addPanelClass(classes: string | string[]): this {\n    this.overlayRef.addPanelClass(classes);\n    return this;\n  }\n\n  /** Remove a CSS class or an array of classes from the overlay pane. */\n  removePanelClass(classes: string | string[]): this {\n    this.overlayRef.removePanelClass(classes);\n    return this;\n  }\n}\n"]}