primeng/esm2015/dynamicdialog/dialogservice.js

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import { Injectable, ComponentFactoryResolver, ApplicationRef, Injector } from '@angular/core';
import { DynamicDialogComponent } from './dynamicdialog';
import { DynamicDialogInjector } from './dynamicdialog-injector';
import { DynamicDialogConfig } from './dynamicdialog-config';
import { DynamicDialogRef } from './dynamicdialog-ref';
export class DialogService {
    constructor(componentFactoryResolver, appRef, injector) {
        this.componentFactoryResolver = componentFactoryResolver;
        this.appRef = appRef;
        this.injector = injector;
        this.dialogComponentRefMap = new Map();
    }
    open(componentType, config) {
        const dialogRef = this.appendDialogComponentToBody(config);
        this.dialogComponentRefMap.get(dialogRef).instance.childComponentType = componentType;
        return dialogRef;
    }
    appendDialogComponentToBody(config) {
        const map = new WeakMap();
        map.set(DynamicDialogConfig, config);
        const dialogRef = new DynamicDialogRef();
        map.set(DynamicDialogRef, dialogRef);
        const sub = dialogRef.onClose.subscribe(() => {
            this.dialogComponentRefMap.get(dialogRef).instance.close();
        });
        const destroySub = dialogRef.onDestroy.subscribe(() => {
            this.removeDialogComponentFromBody(dialogRef);
            destroySub.unsubscribe();
            sub.unsubscribe();
        });
        const componentFactory = this.componentFactoryResolver.resolveComponentFactory(DynamicDialogComponent);
        const componentRef = componentFactory.create(new DynamicDialogInjector(this.injector, map));
        this.appRef.attachView(componentRef.hostView);
        const domElem = componentRef.hostView.rootNodes[0];
        document.body.appendChild(domElem);
        this.dialogComponentRefMap.set(dialogRef, componentRef);
        return dialogRef;
    }
    removeDialogComponentFromBody(dialogRef) {
        if (!dialogRef || !this.dialogComponentRefMap.has(dialogRef)) {
            return;
        }
        const dialogComponentRef = this.dialogComponentRefMap.get(dialogRef);
        this.appRef.detachView(dialogComponentRef.hostView);
        dialogComponentRef.destroy();
        this.dialogComponentRefMap.delete(dialogRef);
    }
}
DialogService.decorators = [
    { type: Injectable }
];
DialogService.ctorParameters = () => [
    { type: ComponentFactoryResolver },
    { type: ApplicationRef },
    { type: Injector }
];
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