@hxui/angular
Version:
An Angular library based on the [HXUI design system](https://hxui.io).
88 lines • 13 kB
JavaScript
import { Injectable, Injector } from '@angular/core';
import { Overlay, OverlayConfig } from '@angular/cdk/overlay';
import { DialogOverlayRef } from './dialog-overlay.ref';
import { ComponentPortal, PortalInjector } from '@angular/cdk/portal';
import { FocusTrapFactory } from '@angular/cdk/a11y';
import * as i0 from "@angular/core";
import * as i1 from "@angular/cdk/overlay";
import * as i2 from "@angular/cdk/a11y";
const DEFAULT_CONFIG = {
hasBackdrop: true,
backdropClass: 'dark-backdrop',
panelClass: 'hx-modal-panel',
backdropClickable: true
};
export class DialogService {
constructor(injector, overlay, focusTrapFactory) {
this.injector = injector;
this.overlay = overlay;
this.focusTrapFactory = focusTrapFactory;
}
/**
* Create component dynamically
*/
open(component, config = {}, parameters) {
// Override default configuration
const dialogConfig = { ...DEFAULT_CONFIG, ...config };
// Returns an OverlayRef (which is a PortalHost)
const overlayRef = this.createOverlay(dialogConfig);
const dialogRef = new DialogOverlayRef(overlayRef);
// Create ComponentPortal that can be attached to a PortalHost
// and then attach ComponentPortal to PortalHost
const containerRef = this.attachDialogContainer(component, overlayRef, dialogConfig, dialogRef);
// pass the @Input parameters to the instance
Object.assign(containerRef.instance, parameters);
// Subscribe to a stream that emits when the backdrop was clicked
if (dialogConfig.backdropClickable) {
overlayRef.backdropClick().subscribe(_ => dialogRef.close());
}
// create and manage focus trap
this.componentNativeElement = containerRef.location.nativeElement;
this.trapFocus();
return dialogRef;
}
createOverlay(config) {
// Returns an OverlayConfig
const overlayConfig = this.getOverlayConfig(config);
// Returns an OverlayRef
return this.overlay.create(overlayConfig);
}
getOverlayConfig(config) {
const positionStrategy = this.overlay.position()
.global()
.centerHorizontally()
.centerVertically();
const overlayConfig = new OverlayConfig({
hasBackdrop: config.hasBackdrop,
backdropClass: config.backdropClass,
panelClass: config.panelClass,
scrollStrategy: this.overlay.scrollStrategies.block(),
positionStrategy
});
return overlayConfig;
}
createInjector(dialogRef) {
// Instantiate new WeakMap for our custom injection tokens
const injectionTokens = new WeakMap();
// Set custom injection tokens
injectionTokens.set(DialogOverlayRef, dialogRef);
// Instantiate new PortalInjector
return new PortalInjector(this.injector, injectionTokens);
}
attachDialogContainer(component, overlayRef, config, dialogRef) {
const injector = this.createInjector(dialogRef);
const containerPortal = new ComponentPortal(component, null, injector);
const containerRef = overlayRef.attach(containerPortal);
return containerRef;
}
trapFocus() {
this.focusTrap = this.focusTrapFactory.create(this.componentNativeElement);
this.focusTrap.focusInitialElementWhenReady();
}
}
DialogService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.11", ngImport: i0, type: DialogService, deps: [{ token: i0.Injector }, { token: i1.Overlay }, { token: i2.FocusTrapFactory }], target: i0.ɵɵFactoryTarget.Injectable });
DialogService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.3.11", ngImport: i0, type: DialogService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.11", ngImport: i0, type: DialogService, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i0.Injector }, { type: i1.Overlay }, { type: i2.FocusTrapFactory }]; } });
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{ComponentRef, Inject, Injectable, Injector, Optional} from '@angular/core';\r\nimport {Overlay, OverlayConfig, OverlayRef} from '@angular/cdk/overlay';\r\nimport {DialogOverlayRef} from './dialog-overlay.ref';\r\nimport {ComponentPortal, PortalInjector} from '@angular/cdk/portal';\r\nimport {FocusTrapFactory} from '@angular/cdk/a11y';\r\nimport {DOCUMENT} from '@angular/common';\r\n\r\ninterface DialogConfig {\r\n  panelClass?: string;\r\n  hasBackdrop?: boolean;\r\n  backdropClass?: string;\r\n  backdropClickable?: boolean;\r\n}\r\n\r\nconst DEFAULT_CONFIG: DialogConfig = {\r\n  hasBackdrop: true,\r\n  backdropClass: 'dark-backdrop',\r\n  panelClass: 'hx-modal-panel',\r\n  backdropClickable: true\r\n};\r\n\r\n@Injectable()\r\nexport class DialogService {\r\n\r\n  private focusTrap;\r\n  private componentNativeElement;\r\n\r\n  constructor(\r\n    private injector: Injector,\r\n    private overlay: Overlay,\r\n    private focusTrapFactory: FocusTrapFactory\r\n  ) {}\r\n\r\n\r\n  /**\r\n   * Create component dynamically\r\n   */\r\n  open(component: any, config: DialogConfig = {}, parameters?: Object): DialogOverlayRef {\r\n\r\n    // Override default configuration\r\n    const dialogConfig = { ...DEFAULT_CONFIG, ...config };\r\n\r\n    // Returns an OverlayRef (which is a PortalHost)\r\n    const overlayRef = this.createOverlay(dialogConfig);\r\n\r\n    const dialogRef = new DialogOverlayRef(overlayRef);\r\n\r\n    // Create ComponentPortal that can be attached to a PortalHost\r\n    // and then attach ComponentPortal to PortalHost\r\n    const containerRef = this.attachDialogContainer(component, overlayRef, dialogConfig, dialogRef);\r\n\r\n    // pass the @Input parameters to the instance\r\n    Object.assign(containerRef.instance, parameters);\r\n\r\n    // Subscribe to a stream that emits when the backdrop was clicked\r\n    if (dialogConfig.backdropClickable) {\r\n      overlayRef.backdropClick().subscribe(_ => dialogRef.close());\r\n    }\r\n\r\n    // create and manage focus trap\r\n    this.componentNativeElement = containerRef.location.nativeElement;\r\n    this.trapFocus();\r\n\r\n    return dialogRef;\r\n  }\r\n\r\n  private createOverlay(config: DialogConfig) {\r\n    // Returns an OverlayConfig\r\n    const overlayConfig = this.getOverlayConfig(config);\r\n\r\n    // Returns an OverlayRef\r\n    return this.overlay.create(overlayConfig);\r\n  }\r\n\r\n\r\n  private getOverlayConfig(config: DialogConfig): OverlayConfig {\r\n    const positionStrategy = this.overlay.position()\r\n      .global()\r\n      .centerHorizontally()\r\n      .centerVertically();\r\n\r\n    const overlayConfig = new OverlayConfig({\r\n      hasBackdrop: config.hasBackdrop,\r\n      backdropClass: config.backdropClass,\r\n      panelClass: config.panelClass,\r\n      scrollStrategy: this.overlay.scrollStrategies.block(),\r\n      positionStrategy\r\n    });\r\n\r\n    return overlayConfig;\r\n  }\r\n\r\n  private createInjector(dialogRef: DialogOverlayRef): PortalInjector {\r\n    // Instantiate new WeakMap for our custom injection tokens\r\n    const injectionTokens = new WeakMap();\r\n\r\n    // Set custom injection tokens\r\n    injectionTokens.set(DialogOverlayRef, dialogRef);\r\n\r\n    // Instantiate new PortalInjector\r\n    return new PortalInjector(this.injector, injectionTokens);\r\n  }\r\n\r\n  private attachDialogContainer(component: any, overlayRef: OverlayRef, config: DialogConfig, dialogRef: DialogOverlayRef) {\r\n    const injector = this.createInjector(dialogRef);\r\n\r\n    const containerPortal = new ComponentPortal(component, null, injector);\r\n    const containerRef: ComponentRef<any> = overlayRef.attach(containerPortal);\r\n\r\n    return containerRef;\r\n  }\r\n\r\n  private trapFocus() {\r\n    this.focusTrap = this.focusTrapFactory.create(this.componentNativeElement);\r\n    this.focusTrap.focusInitialElementWhenReady();\r\n  }\r\n\r\n}\r\n"]}