import {
Component,
Directive,
Input,
Output,
EventEmitter,
ChangeDetectionStrategy,
OnInit,
OnDestroy,
Injector,
Renderer,
ComponentRef,
ElementRef,
TemplateRef,
ViewContainerRef,
ComponentFactoryResolver,
NgZone
} from '@angular/core';
import { listenToTriggers } from './util/triggers';
import { positionElements } from './util/positioning';
import { PopupService } from './util/popup';
import { OesDaterangePopoverConfig } from './popover-config';
let nextId = 0;
@Component({
selector: 'ngb-popover-window',
changeDetection: ChangeDetectionStrategy.OnPush,
host: { '[class]': '"popover show popover-" + placement', 'role': 'tooltip', '[id]': 'id' },
styles: [`
.popover-title,.popover-content{
background-color: #fff;
}
.popover-custom{
padding:9px 5px !important;
}
`],
template: `
{{title}}
`
})
export class OesDaterangePopoverWindow {
@Input() public placement: 'top' | 'bottom' | 'left' | 'right' = 'top';
@Input() public title: string;
@Input() public id: string;
}
/**
* A lightweight, extensible directive for fancy oes-popover creation.
*/
@Directive({ selector: '[oesDaterangePopover]', exportAs: 'oesDaterangePopover' })
export class OesDaterangePopover implements OnInit, OnDestroy {
/**
* Content to be displayed as oes-popover.
*/
@Input() public oesDaterangePopover: string | TemplateRef;
/**
* Title of a oes-popover.
*/
@Input() public popoverTitle: string;
/**
* Placement of a oes-popover. Accepts: "top", "bottom", "left", "right"
*/
@Input() public placement: 'top' | 'bottom' | 'left' | 'right';
/**
* Specifies events that should trigger. Supports a space separated list of event names.
*/
@Input() public triggers: string;
/**
* A selector specifying the element the oes-popover should be appended to.
* Currently only supports "body".
*/
@Input() public container: string;
/**
* Emits an event when the oes-popover is shown
*/
@Output() public shown = new EventEmitter();
/**
* Emits an event when the oes-popover is hidden
*/
@Output() public hidden = new EventEmitter();
private _OesDaterangePopoverWindowId = `ngb-popover-${nextId++}`;
private _popupService: PopupService;
private _windowRef: ComponentRef;
private _unregisterListenersFn;
private _zoneSubscription: any;
constructor(
private _elementRef: ElementRef, private _renderer: Renderer, injector: Injector,
componentFactoryResolver: ComponentFactoryResolver, viewContainerRef: ViewContainerRef, config: OesDaterangePopoverConfig,
ngZone: NgZone) {
this.placement = config.placement;
this.triggers = config.triggers;
this.container = config.container;
this._popupService = new PopupService(
OesDaterangePopoverWindow, injector, viewContainerRef, _renderer, componentFactoryResolver);
this._zoneSubscription = ngZone.onStable.subscribe(() => {
if (this._windowRef) {
positionElements(
this._elementRef.nativeElement, this._windowRef.location.nativeElement, this.placement,
this.container === 'body');
}
});
}
/**
* Opens an element’s oes-popover. This is considered a “manual” triggering of the oes-popover.
* The context is an optional value to be injected into the oes-popover template when it is created.
*/
public open(context?: any) {
if (!this._windowRef) {
this._windowRef = this._popupService.open(this.oesDaterangePopover, context);
this._windowRef.instance.placement = this.placement;
this._windowRef.instance.title = this.popoverTitle;
this._windowRef.instance.id = this._OesDaterangePopoverWindowId;
this._renderer.setElementAttribute(this._elementRef.nativeElement, 'aria-describedby', this._OesDaterangePopoverWindowId);
if (this.container === 'body') {
window.document.querySelector(this.container).appendChild(this._windowRef.location.nativeElement);
}
// we need to manually invoke change detection since events registered via
// Renderer::listen() are not picked up by change detection with the OnPush strategy
this._windowRef.changeDetectorRef.markForCheck();
this.shown.emit();
}
}
/**
* Closes an element’s oes-popover. This is considered a “manual” triggering of the oes-popover.
*/
public close(): void {
if (this._windowRef) {
this._renderer.setElementAttribute(this._elementRef.nativeElement, 'aria-describedby', null);
this._popupService.close();
this._windowRef = null;
this.hidden.emit();
}
}
/**
* Toggles an element’s oes-popover. This is considered a “manual” triggering of the oes-popover.
*/
public toggle(): void {
if (this._windowRef) {
this.close();
} else {
this.open();
}
}
/**
* Returns whether or not the oes-popover is currently being shown
*/
public isOpen(): boolean { return this._windowRef !== null; }
public ngOnInit() {
this._unregisterListenersFn = listenToTriggers(
this._renderer, this._elementRef.nativeElement, this.triggers, this.open.bind(this), this.close.bind(this),
this.toggle.bind(this));
}
public ngOnDestroy() {
this.close();
this._unregisterListenersFn();
this._zoneSubscription.unsubscribe();
}
}