fixed touch rotate

Author: Vasyl Vavrychuk

src/webdriver/extension_qt/web_view_executor.cc

@@ -840,7 +840,6 @@ void QWebViewCmdExecutor::TouchPinchRotate(const ElementId &element, const int &
     float degree = angle;
     float rad = M_PI*degree/180;
 
-
     QTouchEvent *touchBeginEvent = create2PointTouchEvent(QEvent::TouchBegin, Qt::TouchPointPressed, startPoint, startPoint2);
     QApplication::postEvent(view_, touchBeginEvent);
 
@@ -908,7 +907,7 @@ void QWebViewCmdExecutor::TouchPinchZoom(const ElementId &element, const double
             point2.setX(startPoint2.x() + dx*i/stepCount);
         else
             point2.setX(startPoint2.x() - dx*i/stepCount);
-        qDebug()<<i<<point1<<point2;
+
         QTouchEvent *touchMoveEvent = create2PointTouchEvent(QEvent::TouchUpdate, Qt::TouchPointMoved, point1, point2);
         QApplication::postEvent(view_, touchMoveEvent);
 

web/webdriver-app.js

@@ -450,10 +450,21 @@ VisualizerController.prototype.visualizerAssignEventHandlers = function() {
   });
 
   hammer.on("rotate", function(event) {
+    // get principal angle from the interval (-180, 180)
+    function toPrincipalAngle(angle) {
+      while (angle < 0) angle += 360;
+      angle = angle - Math.round(angle / 360) * 360;
+      if (angle > 180) angle -= 360;
+      return angle;
+    }
+
+    var angle = event.gesture.rotation;
+    angle = Math.round(toPrincipalAngle(angle));
+
     var xpath = Util.getXPath(event.target);
     var target = self.driver.findElement(webdriver.By.xpath(xpath));
     self.driver.actions().
-      touchPinchRotate(target, event.gesture.rotation).
+      touchPinchRotate(target, angle).
       perform();
   });