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import {Injectable, ComponentRef} from '@angular/core';
import {PlxModalBackdrop} from './modal-backdrop';
import {PlxModalWindow} from './modal-window';
import {ContentRef} from '../util/popup';
/**
* A reference to an active (currently opened) modal. Instances of this class
* can be injected into components passed as modal content.
*/
@Injectable()
export class PlxActiveModal {
/**
* Can be used to close a modal, passing an optional result.
*/
public close(result?: any): void {
// TO DO
}
/**
* Can be used to dismiss a modal, passing an optional reason.
*/
public dismiss(reason?: any): void {
// TO DO
}
}
/**
* A reference to a newly opened modal.
*/
@Injectable()
export class PlxModalRef {
private _resolve: (result?: any) => void;
private _reject: (reason?: any) => void;
/**
* The instance of component used as modal's content.
* Undefined when a TemplateRef is used as modal's content.
*/
get componentInstance(): any {
if (this._contentRef.componentRef) {
return this._contentRef.componentRef.instance;
}
}
// only needed to keep TS1.8 compatibility
set componentInstance(instance: any) {
// TO DO
}
/**
* A promise that is resolved when a modal is closed and rejected when a modal is dismissed.
*/
public result: Promise<any>;
constructor(private _windowCmptRef: ComponentRef<PlxModalWindow>, private _contentRef: ContentRef,
private _backdropCmptRef?: ComponentRef<PlxModalBackdrop>) {
_windowCmptRef.instance.dismissEvent.subscribe((reason: any) => {
this.dismiss(reason);
});
this.result = new Promise((resolve, reject) => {
this._resolve = resolve;
this._reject = reject;
});
this.result.then(null, () => {
// TO DO
});
}
/**
* Can be used to close a modal, passing an optional result.
*/
public close(result?: any): void {
if (this._windowCmptRef) {
this._resolve(result);
this._removeModalElements();
}
}
/**
* Can be used to dismiss a modal, passing an optional reason.
*/
public dismiss(reason?: any): void {
if (this._windowCmptRef) {
this._reject(reason);
this._removeModalElements();
}
}
private _removeModalElements() {
const windowNativeEl = this._windowCmptRef.location.nativeElement;
windowNativeEl.parentNode.removeChild(windowNativeEl);
this._windowCmptRef.destroy();
if (this._backdropCmptRef) {
const backdropNativeEl = this._backdropCmptRef.location.nativeElement;
backdropNativeEl.parentNode.removeChild(backdropNativeEl);
this._backdropCmptRef.destroy();
}
if (this._contentRef && this._contentRef.viewRef) {
this._contentRef.viewRef.destroy();
}
this._windowCmptRef = null;
this._backdropCmptRef = null;
this._contentRef = null;
}
}
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