remove ContainmentActions::event, replace with triggering methods

containment.cpp

@@ -482,18 +482,6 @@ void Containment::setLocation(Location location)
         return;
     }
 
-    bool emitGeomChange = false;
-
-    if ((location == TopEdge || location == BottomEdge) &&
-        (d->location == TopEdge || d->location == BottomEdge)) {
-        emitGeomChange = true;
-    }
-
-    if ((location == RightEdge || location == LeftEdge) &&
-        (d->location == RightEdge || d->location == LeftEdge)) {
-        emitGeomChange = true;
-    }
-
     d->location = location;
 
     foreach (Applet *applet, d->applets) {
@@ -751,7 +739,11 @@ void Containment::wheelEvent(QWheelEvent *event)
     QString trigger = ContainmentActions::eventToString(event);
 
     if (d->prepareContainmentActions(trigger, event->globalPos())) {
-        d->actionPlugins()->value(trigger)->contextEvent(event);
+        if (event->delta() > 0) {
+            d->actionPlugins()->value(trigger)->performNext();
+        } else {
+            d->actionPlugins()->value(trigger)->performPrevious();
+        }
         event->accept();
     }
 }

containmentactions.cpp

@@ -128,9 +128,17 @@ void ContainmentActions::configurationAccepted()
     //do nothing by default
 }
 
-void ContainmentActions::contextEvent(QEvent *event)
+QAction *ContainmentActions::triggerableContextAction()
+{
+    return 0;
+}
+
+void ContainmentActions::performNext()
+{
+}
+
+void ContainmentActions::performPrevious()
 {
-    Q_UNUSED(event)
 }
 
 QList<QAction*> ContainmentActions::contextualActions()

containmentactions.h

@@ -115,7 +115,9 @@ class PLASMA_EXPORT ContainmentActions : public QObject
          * those parameters.
          * The event may be a QMouseEvent or a QWheelEvent.
          */
-        virtual void contextEvent(QEvent *event);
+        virtual QAction *triggerableContextAction();
+        virtual void performNext();
+        virtual void performPrevious();
 
         /**
          * Implement this to provide a list of actions that can be added to another menu