Item in array with a (click) event fired on "mouse up" about angular-slick-carousel HOT 2 OPEN

// fires on mousedown, "(mousedown)=trackMouse()"
trackMouse() {
  this.mouseDown = true;
  window.setTimeout(() => {
    this.mouseDown = false;
  }, 100);
}

// fires on click, "(click)=navigateIfClick(item)"
navigateIfClick(item) {
  if (this.mouseDown) {
    this.router.navigate(['/item/', item.id]);
  }
}

trackMouseDown(event: MouseEvent) {
  this.x1 = event.x;
  this.y1 = event.y;
}

trackMouseUp(event: MouseEvent, item: Item) {
  let a = this.x1 - event.x;
  let b = this.y1 - event.y;
  let c = Math.sqrt(a * a + b * b);

  if (c < 10) {
    switch (event.which) {
      case 1:
        // left click
        this.router.navigate(['/items/', item.id]);
        break;
      case 2:
        // middle button
        window.open(window.location.hostname + `/items/${item.id}`, '_blank');
        break;
      case 3:
        // right click
        break;
      default:
        this.router.navigate(['/items/', item.id]);
        break;
    }
  }
}