Fix for #205

Author: mackenzieajudd

src/ui-layout.js

@@ -171,14 +171,20 @@ angular.module('ui.layout', [])
       return event;
     };
 
+    ctrl.getMousePosition = function(mouseEvent){
+      return ctrl.sizeProperties.mouseProperty in mouseEvent ? mouseEvent[ctrl.sizeProperties.mouseProperty] 
+                      : mouseEvent.originalEvent && ctrl.sizeProperties.mouseProperty in mouseEvent.originalEvent ? mouseEvent.originalEvent[ctrl.sizeProperties.mouseProperty]
+                      : mouseEvent.targetTouches ? mouseEvent.targetTouches[0][ctrl.sizeProperties.mouseProperty]
+                      : mouseEvent.originalEvent && mouseEvent.originalEvent.targetTouches ? mouseEvent.originalEvent.targetTouches[0][ctrl.sizeProperties.mouseProperty]
+                      : null;
+    };
+    
     ctrl.mouseMoveHandler = function(mouseEvent) {
-      var mousePos = mouseEvent[ctrl.sizeProperties.mouseProperty] ||
-        (mouseEvent.originalEvent && mouseEvent.originalEvent[ctrl.sizeProperties.mouseProperty]) ||
-        // jQuery does touches weird, see #82
-        ($window.jQuery ?
-          (mouseEvent.originalEvent ? mouseEvent.originalEvent.targetTouches[0][ctrl.sizeProperties.mouseProperty] : 0) :
-          (mouseEvent.targetTouches ? mouseEvent.targetTouches[0][ctrl.sizeProperties.mouseProperty] : 0));
 
+      var mousePos = ctrl.getMousePosition(mouseEvent);
+      
+      if(mousePos === null) return;
+      
       lastPos = mousePos - offset($element)[ctrl.sizeProperties.offsetPos];
 
       //Cancel previous rAF call

test/uiLayoutCtrl.spec.js

@@ -36,5 +36,86 @@ describe('Controller: uiLayoutCtrl', function () {
       expect(uic.isLayoutElement(tagContainer)).toEqual(true);
       expect(uic.isLayoutElement(notUiEl)).toEqual(false);
     });
+    
+    describe('getMousePosition', function(){
+      
+      var controller;
+
+      beforeEach(function(){
+        controller = $controller('uiLayoutCtrl', {
+          $scope: scope,
+          $attrs: {},
+          $element: angular.element('<div></div>')});
+      });
+      
+      it('should handle standard mouse event', function(){
+        var mockMouseEvent = {};
+        mockMouseEvent[controller.sizeProperties.mouseProperty] = 0;
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+        
+        expect(result).toEqual(0);
+      });
+      
+      it('should handle jQuery mouse event', function(){
+        
+        var mockMouseEvent = {
+          originalEvent: {}
+        };
+        mockMouseEvent.originalEvent[controller.sizeProperties.mouseProperty] = 0;
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+
+        expect(result).toEqual(0);
+      });
+      
+      it('should handle standard touch event', function(){
+        
+        var mockMouseEvent = {
+          targetTouches: []
+        };
+        mockMouseEvent.targetTouches[0] = {};
+        mockMouseEvent.targetTouches[0][controller.sizeProperties.mouseProperty] = 0;
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+ 
+        expect(result).toEqual(0);
+      });
+      
+      it('should handle unrecognised standard event', function(){
+        var mockMouseEvent = {};
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+        
+        expect(result).toEqual(null);
+      });
+      
+      it('should handle jQuery touch event', function(){
+        
+        var mockMouseEvent = {
+          originalEvent: {
+            targetTouches: []
+          }
+        };
+        
+        mockMouseEvent.originalEvent.targetTouches[0] = {};
+        mockMouseEvent.originalEvent.targetTouches[0][controller.sizeProperties.mouseProperty] = 0;
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+
+        expect(result).toEqual(0);
+      });
+      
+      it('should handle unrecognised jQuery event', function(){
+
+        var mockMouseEvent = {
+          originalEvent: {}
+        };
+        
+        var result = controller.getMousePosition(mockMouseEvent);
+
+        expect(result).toEqual(null);
+      });
+    });
   });
 });