ngx-mat-cdk
Version:
Extra Components for Angular Material including Filters,Drag Drop File, MatSelect Mobile Version
102 lines • 12.1 kB
JavaScript
import { Directive, ElementRef, EventEmitter, Inject, Output, PLATFORM_ID } from '@angular/core';
import { isPlatformBrowser } from "@angular/common";
export class NgxCdkTouchDetectDirective {
constructor(el, plateFormId) {
this.el = el;
this.plateFormId = plateFormId;
this.swipeLeft = new EventEmitter();
this.swipeUp = new EventEmitter();
this.swipeRight = new EventEmitter();
this.swipeDown = new EventEmitter();
this.swipe = new EventEmitter();
this.xDown = null;
this.yDown = null;
}
getTouches(evt) {
return evt.touches || // browser API
evt.originalEvent.touches; // jQuery
}
ngAfterViewInit() {
if (isPlatformBrowser(this.plateFormId)) {
this._addEvents();
}
}
_handleTouchStartFunc(evt) {
const firstTouch = this.getTouches(evt)[0];
this.xDown = firstTouch.clientX;
this.yDown = firstTouch.clientY;
}
_handleTouchMoveFunc(evt) {
if (!this.xDown || !this.yDown) {
return;
}
let xUp = evt.touches[0].clientX;
let yUp = evt.touches[0].clientY;
let xDiff = this.xDown - xUp;
let yDiff = this.yDown - yUp;
let direction = 'up';
if (Math.abs(xDiff) > Math.abs(yDiff)) { /*most significant*/
if (xDiff > 0) {
/* left swipe */
this.swipeLeft.emit(evt);
direction = 'left';
}
else {
/* right swipe */
this.swipeRight.emit(evt);
direction = 'right';
}
}
else {
if (yDiff > 0) {
/* up swipe */
this.swipeUp.emit(evt);
direction = 'up';
}
else {
/* down swipe */
this.swipeDown.emit(evt);
direction = 'down';
}
}
this.swipe.emit({ event: evt, direction });
/* reset values */
this.xDown = null;
this.yDown = null;
}
;
_addEvents() {
this._handleTouchMove = this._handleTouchMoveFunc.bind(this);
this._handleTouchStart = this._handleTouchStartFunc.bind(this);
this.el.nativeElement.addEventListener('touchstart', this._handleTouchStart, false);
this.el.nativeElement.addEventListener('touchmove', this._handleTouchMove, false);
}
_removeEvents() {
this.el.nativeElement.removeEventListener('touchstart', this._handleTouchStart, false);
this.el.nativeElement.removeEventListener('touchmove', this._handleTouchMove, false);
}
ngOnDestroy() {
if (isPlatformBrowser(this.plateFormId)) {
this._removeEvents();
}
}
}
NgxCdkTouchDetectDirective.decorators = [
{ type: Directive, args: [{
selector: '[ngxCdkTouchDetect]'
},] }
];
NgxCdkTouchDetectDirective.ctorParameters = () => [
{ type: ElementRef },
{ type: undefined, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] }
];
NgxCdkTouchDetectDirective.propDecorators = {
swipeLeft: [{ type: Output }],
swipeUp: [{ type: Output }],
swipeRight: [{ type: Output }],
swipeDown: [{ type: Output }],
swipe: [{ type: Output }]
};
export class NgxCdkTouchResult {
}
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// jQuery\r\n  }\r\n\r\n\r\n  ngAfterViewInit(): void {\r\n    if (isPlatformBrowser(this.plateFormId)) {\r\n      this._addEvents();\r\n    }\r\n  }\r\n\r\n  private _handleTouchStart: any;\r\n\r\n  private _handleTouchStartFunc(evt): void {\r\n    const firstTouch = this.getTouches(evt)[0];\r\n    this.xDown = firstTouch.clientX;\r\n    this.yDown = firstTouch.clientY;\r\n  }\r\n\r\n  private _handleTouchMove: any;\r\n\r\n  private _handleTouchMoveFunc(evt): void {\r\n    if (!this.xDown || !this.yDown) {\r\n      return;\r\n    }\r\n\r\n    let xUp = evt.touches[0].clientX;\r\n    let yUp = evt.touches[0].clientY;\r\n\r\n    let xDiff = this.xDown - xUp;\r\n    let yDiff = this.yDown - yUp;\r\n    let direction: string = 'up';\r\n    if (Math.abs(xDiff) > Math.abs(yDiff)) {/*most significant*/\r\n      if (xDiff > 0) {\r\n        /* left swipe */\r\n        this.swipeLeft.emit(evt);\r\n        direction = 'left';\r\n      } else {\r\n        /* right swipe */\r\n        this.swipeRight.emit(evt);\r\n        direction = 'right';\r\n      }\r\n    } else {\r\n      if (yDiff > 0) {\r\n        /* up swipe */\r\n        this.swipeUp.emit(evt);\r\n        direction = 'up';\r\n\r\n      } else {\r\n        /* down swipe */\r\n        this.swipeDown.emit(evt);\r\n        direction = 'down';\r\n      }\r\n    }\r\n    this.swipe.emit({event: evt, direction});\r\n    /* reset values */\r\n    this.xDown = null;\r\n    this.yDown = null;\r\n  };\r\n\r\n  private _addEvents(): void {\r\n\r\n    this._handleTouchMove = this._handleTouchMoveFunc.bind(this);\r\n    this._handleTouchStart = this._handleTouchStartFunc.bind(this);\r\n\r\n    this.el.nativeElement.addEventListener('touchstart', this._handleTouchStart, false);\r\n    this.el.nativeElement.addEventListener('touchmove', this._handleTouchMove, false);\r\n\r\n  }\r\n\r\n  private _removeEvents(): void {\r\n    this.el.nativeElement.removeEventListener('touchstart', this._handleTouchStart, false);\r\n    this.el.nativeElement.removeEventListener('touchmove', this._handleTouchMove, false);\r\n\r\n  }\r\n\r\n  ngOnDestroy(): void {\r\n    if (isPlatformBrowser(this.plateFormId)) {\r\n      this._removeEvents();\r\n    }\r\n\r\n  }\r\n\r\n}\r\n\r\nexport class NgxCdkTouchResult {\r\n  event: TouchEvent;\r\n  direction: string;\r\n}\r\n"]}