60 lines
1.7 KiB
TypeScript
60 lines
1.7 KiB
TypeScript
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// (C) Copyright 2015 Moodle Pty Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Based on https://medium.com/madewithply/ionic-4-long-press-gestures-96cf1e44098b
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import { Directive, ElementRef, OnInit, OnDestroy, Output, EventEmitter } from '@angular/core';
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import { Gesture } from '@ionic/angular';
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import { GestureController } from '@singletons/core.singletons';
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/**
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* Directive to add long press actions to html elements.
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*/
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@Directive({
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selector: '[longPress]',
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})
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export class CoreLongPressDirective implements OnInit, OnDestroy {
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element: HTMLElement;
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pressGesture?: Gesture;
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@Output() longPress = new EventEmitter();
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constructor(el: ElementRef) {
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this.element = el.nativeElement;
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this.element.setAttribute('tappable', '');
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}
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/**
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* Initialize gesture listening.
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*/
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ngOnInit(): void {
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this.pressGesture = GestureController.instance.create({
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el: this.element,
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threshold: 0,
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gestureName: 'longpress',
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onEnd: ev => this.longPress.emit(ev.event),
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}, true);
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this.pressGesture.enable();
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}
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/**
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* Destroy gesture listening.
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*/
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ngOnDestroy(): void {
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this.pressGesture?.destroy();
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}
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}
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