+ supportPointer (low level api)

Author: RubaXa

.gitignore

@@ -3,3 +3,4 @@ mock.png
 .*.sw*
 .build*
 jquery.fn.*
+.idea/

Sortable.js

@@ -275,7 +275,8 @@
 			fallbackClass: 'sortable-fallback',
 			fallbackOnBody: false,
 			fallbackTolerance: 0,
-			fallbackOffset: {x: 0, y: 0}
+			fallbackOffset: {x: 0, y: 0},
+			supportPointer: Sortable.supportPointer !== false,
 		};
 
 
@@ -299,7 +300,7 @@
 		// Bind events
 		_on(el, 'mousedown', this._onTapStart);
 		_on(el, 'touchstart', this._onTapStart);
-		_on(el, 'pointerdown', this._onTapStart);
+		options.supportPointer && _on(el, 'pointerdown', this._onTapStart);
 
 		if (this.nativeDraggable) {
 			_on(el, 'dragover', this);
@@ -440,8 +441,8 @@
 				_on(ownerDocument, 'mouseup', _this._onDrop);
 				_on(ownerDocument, 'touchend', _this._onDrop);
 				_on(ownerDocument, 'touchcancel', _this._onDrop);
-				_on(ownerDocument, 'pointercancel', _this._onDrop);
 				_on(ownerDocument, 'selectstart', _this);
+				options.supportPointer && _on(ownerDocument, 'pointercancel', _this._onDrop);
 
 				if (options.delay) {
 					// If the user moves the pointer or let go the click or touch
@@ -452,7 +453,7 @@
 					_on(ownerDocument, 'touchcancel', _this._disableDelayedDrag);
 					_on(ownerDocument, 'mousemove', _this._disableDelayedDrag);
 					_on(ownerDocument, 'touchmove', _this._disableDelayedDrag);
-					_on(ownerDocument, 'pointermove', _this._disableDelayedDrag);
+					options.supportPointer && _on(ownerDocument, 'pointermove', _this._disableDelayedDrag);
 
 					_this._dragStartTimer = setTimeout(dragStartFn, options.delay);
 				} else {
@@ -674,8 +675,11 @@
 					_on(document, 'touchmove', _this._onTouchMove);
 					_on(document, 'touchend', _this._onDrop);
 					_on(document, 'touchcancel', _this._onDrop);
-					_on(document, 'pointermove', _this._onTouchMove);
-					_on(document, 'pointerup', _this._onDrop);
+
+					if (options.supportPointer) {
+						_on(document, 'pointermove', _this._onTouchMove);
+						_on(document, 'pointerup', _this._onDrop);
+					}
 				} else {
 					// Old brwoser
 					_on(document, 'mousemove', _this._onTouchMove);