fix #148,improve tooltips focus

--when mouse leaves the task the relevant
task the window previews becomes hidden

plasmoid/contents/ui/MouseHandler.qml

@@ -143,6 +143,11 @@ Item {
                 hoveredItem = null;
                 activationTimer.stop();
             }
+
+            if (hoveredItem && windowsPreviewDlg.visible && toolTipDelegate.currentItem !== hoveredItem.itemIndex ) {
+                windowsPreviewDlg.hide();
+                toolTipDelegate.currentItem=-1;
+            }
         }
 
         onDragLeave: {
@@ -182,6 +187,11 @@ Item {
                    // groupDialog.visualParent = parent.hoveredItem;
                    // groupDialog.visible = true;
                 } else if (parent.hoveredItem.m.IsLauncher !== true) {
+                    if(windowsPreviewDlg.visible && toolTipDelegate.currentItem !==parent.hoveredItem.itemIndex ) {
+                        windowsPreviewDlg.hide();
+                        toolTipDelegate.currentItem=-1;
+                    }
+
                     tasksModel.requestActivate(parent.hoveredItem.modelIndex());
                 }
             }

plasmoid/contents/ui/TaskDelegate.qml

@@ -501,6 +501,11 @@ MouseArea{
 
     ///////////////// Mouse Area Events ///////////////////
     onEntered: {
+        if ((icList.hoveredIndex !== itemIndex) && isLauncher && windowsPreviewDlg.visible) {
+            windowsPreviewDlg.hide();
+            toolTipDelegate.currentItem = -1;
+        }
+
         checkListHovered.stop();
 
         if((!inAnimation)&&(root.dragSource == null)&&(!root.taskInAnimation)){