onPointerUp method

dynamic onPointerUp(dynamic event)

Implementation

onPointerUp(event) {
  if (event.pointerType == 'touch' && this._input != INPUT.CURSOR) {
    var nTouch = this._touchCurrent.length;

    for (var i = 0; i < nTouch; i++) {
      if (this._touchCurrent[i].pointerId == event.pointerId) {
        this._touchCurrent.splice(i, 1);
        this._touchStart.splice(i, 1);
        break;
      }
    }

    switch (this._input) {
      case INPUT.ONE_FINGER:
      case INPUT.ONE_FINGER_SWITCHED:

        //singleEnd
        domElement.removeEventListener('pointermove', this.onPointerMove);
        domElement.removeEventListener('pointerup', this.onPointerUp);

        this._input = INPUT.NONE;
        this.onSinglePanEnd();

        break;

      case INPUT.TWO_FINGER:

        //doubleEnd
        this.onDoublePanEnd(event);
        this.onPinchEnd(event);
        this.onRotateEnd(event);

        //switching to singleStart
        this._input = INPUT.ONE_FINGER_SWITCHED;

        break;

      case INPUT.MULT_FINGER:
        if (this._touchCurrent.length == 0) {
          domElement.removeEventListener('pointermove', this.onPointerMove);
          domElement.removeEventListener('pointerup', this.onPointerUp);

          //multCancel
          this._input = INPUT.NONE;
          this.onTriplePanEnd();
        }

        break;
    }
  } else if (event.pointerType != 'touch' && this._input == INPUT.CURSOR) {
    domElement.removeEventListener('pointermove', this.onPointerMove);
    domElement.removeEventListener('pointerup', this.onPointerUp);

    this._input = INPUT.NONE;
    this.onSinglePanEnd();
    this._button = -1;
  }

  if (event.isPrimary) {
    if (this._downValid) {
      var downTime = event.timeStamp -
          this._downEvents[this._downEvents.length - 1].timeStamp;

      if (downTime <= this._maxDownTime) {
        if (this._nclicks == 0) {
          //first valid click detected
          this._nclicks = 1;
          this._clickStart = DateTime.now().millisecondsSinceEpoch;
        } else {
          var clickInterval = event.timeStamp - this._clickStart;
          var movement = this.calculatePointersDistance(
                  this._downEvents[1], this._downEvents[0]) *
              this._devPxRatio;

          if (clickInterval <= this._maxInterval &&
              movement <= this._posThreshold) {
            //second valid click detected
            //fire double tap and reset values
            this._nclicks = 0;
            this._downEvents.splice(0, this._downEvents.length);
            this.onDoubleTap(event);
          } else {
            //new 'first click'
            this._nclicks = 1;
            this._downEvents.removeAt(0);
            this._clickStart = DateTime.now().millisecondsSinceEpoch;
          }
        }
      } else {
        this._downValid = false;
        this._nclicks = 0;
        this._downEvents.splice(0, this._downEvents.length);
      }
    } else {
      this._nclicks = 0;
      this._downEvents.splice(0, this._downEvents.length);
    }
  }
}