fix(ngScenario): provide event parameters as object

BREAKING CHANGE: browserTrigger now uses an eventData object instead of direct parameters for mouse events.
To migrate, place the `keys`,`x` and `y` parameters inside of an object and place that as the third parameter
for the browserTrigger function.

src/ngScenario/browserTrigger.js

@@ -19,16 +19,19 @@
    * not specified.
    *
    * @param {Object} element Either a wrapped jQuery/jqLite node or a DOMElement
-   * @param {string} eventType Optional event type.
-   * @param {Array.<string>=} keys Optional list of pressed keys
-   *        (valid values: 'alt', 'meta', 'shift', 'ctrl')
-   * @param {number} x Optional x-coordinate for mouse/touch events.
-   * @param {number} y Optional y-coordinate for mouse/touch events.
+   * @param {string} eventType Optional event type
+   * @param {Object=} eventData An optional object which contains additional event data (such as x,y coordinates, keys, etc...) that
+   * are passed into the event when triggered
    */
-  window.browserTrigger = function browserTrigger(element, eventType, keys, x, y) {
+  window.browserTrigger = function browserTrigger(element, eventType, eventData) {
     if (element && !element.nodeName) element = element[0];
     if (!element) return;
 
+    eventData = eventData || {};
+    var keys = eventData.keys;
+    var x = eventData.x;
+    var y = eventData.y;
+
     var inputType = (element.type) ? element.type.toLowerCase() : null,
         nodeName = element.nodeName.toLowerCase();
 
@@ -86,8 +89,38 @@
       }
       return ret;
     } else {
-      var evnt = document.createEvent('MouseEvents'),
-          originalPreventDefault = evnt.preventDefault,
+      var evnt;
+      if(/transitionend/.test(eventType)) {
+        if(window.WebKitTransitionEvent) {
+          evnt = new WebKitTransitionEvent(eventType, eventData);
+          evnt.initEvent(eventType, false, true);
+        }
+        else {
+          evnt = document.createEvent('TransitionEvent');
+          evnt.initTransitionEvent(eventType, null, null, null, eventData.elapsedTime);
+        }
+      }
+      else if(/animationend/.test(eventType)) {
+        if(window.WebKitAnimationEvent) {
+          evnt = new WebKitAnimationEvent(eventType, eventData);
+          evnt.initEvent(eventType, false, true);
+        }
+        else {
+          evnt = document.createEvent('AnimationEvent');
+          evnt.initAnimationEvent(eventType, null, null, null, eventData.elapsedTime);
+        }
+      }
+      else {
+        evnt = document.createEvent('MouseEvents');
+        x = x || 0;
+        y = y || 0;
+        evnt.initMouseEvent(eventType, true, true, window, 0, x, y, x, y, pressed('ctrl'), pressed('alt'),
+            pressed('shift'), pressed('meta'), 0, element);
+      }
+
+      if(!evnt) return;
+
+      var originalPreventDefault = evnt.preventDefault,
           appWindow = element.ownerDocument.defaultView,
           fakeProcessDefault = true,
           finalProcessDefault,
@@ -100,11 +133,6 @@
         return originalPreventDefault.apply(evnt, arguments);
       };
 
-      x = x || 0;
-      y = y || 0;
-      evnt.initMouseEvent(eventType, true, true, window, 0, x, y, x, y, pressed('ctrl'), pressed('alt'),
-          pressed('shift'), pressed('meta'), 0, element);
-
       element.dispatchEvent(evnt);
       finalProcessDefault = !(angular['ff-684208-preventDefault'] || !fakeProcessDefault);