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Abstract to ModalInstance. Use observables. Distinguish close and dis…
…miss events.
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Douglas Ludlow
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Mar 23, 2016
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| import { ElementRef } from 'angular2/core'; | ||
| import { Observable } from 'rxjs/Observable'; | ||
| import { Subscriber } from 'rxjs/Subscriber'; | ||
| import 'rxjs/add/operator/toPromise'; | ||
|
|
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| declare var jQuery: any; | ||
|
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| export class ModalInstance { | ||
|
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| private suffix: string = 'ng2-bs3-modal'; | ||
| private shownEventName: string = 'shown.bs.modal'; | ||
| private hiddenEventName: string = 'hidden.bs.modal'; | ||
|
|
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| $modal: any; | ||
| shown: Observable<any>; | ||
| shownSubscriber: Subscriber<any>; | ||
| hidden: Observable<ModalResult>; | ||
| hiddenSubscriber: Subscriber<ModalResult>; | ||
| result: ModalResult; | ||
| visible: boolean = false; | ||
|
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| constructor(private element: ElementRef) { | ||
| this.init(); | ||
| } | ||
|
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| open(): Promise<any> { | ||
| this.create(); | ||
| return this.show(); | ||
| } | ||
|
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| close(): Promise<any> { | ||
| this.result = ModalResult.Close; | ||
| return this.hide(); | ||
| } | ||
|
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| dismiss(): Promise<any> { | ||
| this.result = ModalResult.Dismiss; | ||
| return this.hide(); | ||
| } | ||
|
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| destroy(): Promise<any> { | ||
| return this.hide().then(() => { | ||
| this.$modal.data('bs.modal', null); | ||
| this.$modal.remove(); | ||
| }); | ||
| } | ||
|
|
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| private show() { | ||
| this.$modal.appendTo('body'); | ||
| this.$modal.modal('show'); | ||
| return this.shown.toPromise(); | ||
| } | ||
|
|
||
| private hide(): Promise<ModalResult> { | ||
| if (this.$modal) this.$modal.modal('hide'); | ||
| return this.hidden.toPromise(); | ||
| } | ||
|
|
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| private init() { | ||
| this.shown = new Observable<any>((subscriber: Subscriber<any>) => { | ||
| this.shownSubscriber = subscriber; | ||
| }); | ||
|
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| this.hidden = new Observable<ModalResult>((subscriber: Subscriber<ModalResult>) => { | ||
| this.hiddenSubscriber = subscriber; | ||
| }); | ||
| } | ||
|
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| private create() { | ||
| if (!this.$modal) { | ||
| this.$modal = jQuery(this.element.nativeElement.firstElementChild); | ||
| this.$modal.appendTo('body').modal({ show: false }); | ||
| } | ||
|
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| this.$modal | ||
| .off(`${this.shownEventName}.${this.suffix}`) | ||
| .on(`${this.shownEventName}.${this.suffix}`, () => { | ||
| this.visible = true; | ||
| this.shownSubscriber.next(); | ||
| this.shownSubscriber.complete(); | ||
| }) | ||
| .off(`${this.hiddenEventName}.${this.suffix}`) | ||
| .on(`${this.hiddenEventName}.${this.suffix}`, () => { | ||
| this.visible = false; | ||
| if (this.result === ModalResult.None) { | ||
| this.result = ModalResult.Dismiss; | ||
| }; | ||
| this.hiddenSubscriber.next(this.result); | ||
| this.hiddenSubscriber.complete(); | ||
| }); | ||
| } | ||
| } | ||
|
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||
| export enum ModalResult { | ||
| None, | ||
| Close, | ||
| Dismiss | ||
| } |
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