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Add touch events support #27

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06fa457
Add touch events support
May 20, 2021
61598f6
Add touch events support
May 20, 2021
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46 changes: 36 additions & 10 deletions projects/ngx-resizable/src/lib/resizable/drag.directive.ts
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Original file line number Diff line number Diff line change
@@ -1,34 +1,60 @@
import { Directive, Output, EventEmitter, HostListener } from '@angular/core';

export type Point = {x: number, y: number};

@Directive({
selector: '[rszDragHandle]'
})
export class DragDirective {

@Output() DragStart = new EventEmitter();
@Output() Drag = new EventEmitter();
@Output() DragEnd = new EventEmitter();
@Output() DragStart = new EventEmitter<Point>();
@Output() Drag = new EventEmitter<Point>();
@Output() DragEnd = new EventEmitter<Point>();

private dragging = false;

@HostListener('mousedown', ['$event'])
onMousedown(event) {
if (event.which === 1) {
onMousedown(e: MouseEvent) {
if (e.which === 1) {
this.dragging = true;
this.DragStart.emit({ originalEvent: event });
this.DragStart.emit({ x: e.clientX, y: e.clientY });
}
}
@HostListener('touchstart', ['$event'])
onTouchstart(e: TouchEvent) {
const touch = e.touches[0];
this.dragging = true;
this.DragStart.emit({ x: touch.clientX, y: touch.clientY });
}

@HostListener('document:mouseup', ['$event'])
onMouseup(event) {
onMouseup(e: MouseEvent) {
if (this.dragging) {
this.DragEnd.emit({ originalEvent: event });
this.DragEnd.emit({ x: e.clientX, y: e.clientY });
}
this.dragging = false;
}
@HostListener('document:touchend', ['$event'])
@HostListener('document:touchcancel', ['$event'])
onTouchend(e: TouchEvent) {
if (this.dragging) {
const touch = e.changedTouches[0];
this.DragEnd.emit({ x: touch.clientX, y: touch.clientY });
}
this.dragging = false;
}

@HostListener('document:mousemove', ['$event'])
onMousemove(event: MouseEvent) {
onMousemove(e: MouseEvent) {
if (this.dragging) {
this.Drag.emit({ x: e.clientX, y: e.clientY });
}
}
@HostListener('document:touchmove', ['$event'])
onTouchmove(e: TouchEvent) {
if (this.dragging) {
this.Drag.emit({ originalEvent: event });
const touch = e.touches[0];
this.Drag.emit({ x: touch.clientX, y: touch.clientY });
}
}
}
24 changes: 10 additions & 14 deletions projects/ngx-resizable/src/lib/resizable/resizable.component.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import { Component, OnInit, HostBinding, Input, ElementRef, ViewEncapsulation, Output, EventEmitter, AfterViewInit } from '@angular/core';
import { NgxResizeableWindowRef } from '../window.service';
import { Point } from './drag.directive';

@Component({
selector: 'rsz-layout',
Expand Down Expand Up @@ -56,23 +57,21 @@ export class ResizableComponent implements OnInit, AfterViewInit {
this.style = this.windowRef.nativeWindow.getComputedStyle(this.nativeElement);
}

private updateInfo(e) {
private updateInfo(p: Point) {
this.info['width'] = false; this.info['height'] = false;
if (this.axis === 'x') {
this.info['width'] = parseInt(this.nativeElement.style[this.rFlex ? this.flexBasis : 'width'], 10);
} else {
this.info['height'] = parseInt(this.nativeElement.style[this.rFlex ? this.flexBasis : 'height'], 10);
}
this.info['id'] = this.nativeElement.id;
this.info['evt'] = e;
this.info['point'] = p;
}

public dragStart(e, direction) {
const mouseEvent = e.originalEvent;

public dragStart(p: Point, direction) {
this.dragDir = direction;
this.axis = (this.dragDir === 'left' || this.dragDir === 'right') ? 'x' : 'y';
this.start = (this.axis === 'x' ? mouseEvent.clientX : mouseEvent.clientY);
this.start = (this.axis === 'x' ? p.x : p.y);
this.w = parseInt(this.style.getPropertyValue('width'), 10);
this.h = parseInt(this.style.getPropertyValue('height'), 10);

Expand All @@ -82,17 +81,14 @@ export class ResizableComponent implements OnInit, AfterViewInit {
this.noTransition = true;
}

public dragEnd(e) {
const mouseEvent = e.originalEvent;

this.updateInfo(mouseEvent);
public dragEnd(p: Point) {
this.updateInfo(p);
this.resizeEnd.emit({ info: this.info });
this.noTransition = false;
}

public dragging(e) {
const mouseEvent = e.originalEvent;
const offset = (this.axis === 'x') ? this.start - mouseEvent.clientX : this.start - mouseEvent.clientY;
public dragging(p: Point) {
const offset = (this.axis === 'x') ? this.start - p.x : this.start - p.y;

let operand = 1;
switch (this.dragDir) {
Expand All @@ -119,7 +115,7 @@ export class ResizableComponent implements OnInit, AfterViewInit {
}
break;
}
this.updateInfo(mouseEvent);
this.updateInfo(p);
this.resizing.emit({ info: this.info });
}
}