73 lines
1.7 KiB
TypeScript
73 lines
1.7 KiB
TypeScript
import {Directive, EventEmitter, HostListener, Input, Output} from '@angular/core';
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@Directive({
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selector: '[long-click]'
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})
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export class LongClick {
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@Input() duration: number = 500;
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@Output() onLongPress: EventEmitter<any> = new EventEmitter();
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@Output() onLongPressing: EventEmitter<any> = new EventEmitter();
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@Output() onLongPressEnd: EventEmitter<any> = new EventEmitter();
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private pressing: boolean;
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private longPressing: boolean;
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private timeout: any;
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private mouseX: number = 0;
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private mouseY: number = 0;
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@HostListener('mousedown', ['$event'])
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onMouseDown(event) {
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// don't do right/middle clicks
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if (event.which !== 1) return;
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this.mouseX = event.clientX;
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this.mouseY = event.clientY;
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this.pressing = true;
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this.longPressing = false;
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this.timeout = setTimeout(() => {
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this.longPressing = true;
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this.onLongPress.emit(event);
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this.loop(event);
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}, this.duration);
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this.loop(event);
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}
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@HostListener('mousemove', ['$event'])
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onMouseMove(event) {
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if (this.pressing && !this.longPressing) {
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const xThres = (event.clientX - this.mouseX) > 10;
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const yThres = (event.clientY - this.mouseY) > 10;
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if (xThres || yThres) {
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this.endPress();
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}
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}
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}
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loop(event) {
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if (this.longPressing) {
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this.timeout = setTimeout(() => {
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this.onLongPressing.emit(event);
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this.loop(event);
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}, 50);
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}
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}
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endPress() {
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clearTimeout(this.timeout);
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this.longPressing = false;
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this.pressing = false;
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this.onLongPressEnd.emit(true);
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}
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@HostListener('mouseup')
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onMouseUp() {
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this.endPress();
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}
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}
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