78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
import {Directive, OnInit, OnDestroy, Output, EventEmitter, ElementRef, Input} from '@angular/core';
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import {Observable} from 'rxjs/Observable';
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import 'rxjs/add/observable/fromEvent';
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import 'rxjs/add/operator/delay';
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import 'rxjs/add/operator/do';
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import {Subscriber} from "rxjs";
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@Directive({
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selector: '[click-outside-or-esc]'
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})
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export class ClickOutsideOrEsc implements OnInit, OnDestroy {
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private listening: boolean;
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private subscriptions: any[] = [];
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@Input()
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public targetId = null;
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@Input()
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public escClose = true;
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@Output('clickOutside') clickOutside: EventEmitter<Object>;
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constructor(private _elRef: ElementRef) {
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this.listening = false;
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this.clickOutside = new EventEmitter();
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}
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ngOnInit() {
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if(typeof document !== 'undefined') {
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this.subscriptions.push(Observable
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.fromEvent(document, 'click')
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.delay(1)
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.do(() => {
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this.listening = true;
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}).subscribe((event: MouseEvent) => {
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this.onGlobalClick(event);
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}));
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this.subscriptions.push(Observable
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.fromEvent(document, 'keydown')
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.delay(1)
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.do(() => {
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this.listening = true;
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}).subscribe((event: KeyboardEvent) => {
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if (event.keyCode === 27 && this.escClose) {
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this.clickOutside.emit({
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target: (event.target || null),
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value: true
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});
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}
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}));
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}
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}
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ngOnDestroy() {
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if (this.subscriptions) {
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this.subscriptions.forEach((subscription: Subscriber<any>) => {
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subscription.unsubscribe();
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});
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}
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this.subscriptions = [];
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}
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onGlobalClick(event: MouseEvent) {
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if (event instanceof MouseEvent && this.listening === true) {
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if (event.target['id'] != this.targetId) {
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this.clickOutside.emit({
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target: (event.target || null),
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value: false
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});
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} else {
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this.clickOutside.emit({
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target: (event.target || null),
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value: true
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});
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}
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}
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}
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}
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