replace Panel::remove() with Containment::destroy()

now I can remove some of the ten desktop containments I accumulated :)
oh, and the code is cleaner too, yay!

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=810129

applet.cpp

@@ -655,10 +655,9 @@ void Applet::flushPendingConstraintsEvents()
     if (c & Plasma::StartupCompletedConstraint) {
         //common actions
         bool unlocked = immutability() == Mutable;
-        //FIXME make it work for containments
+        //FIXME desktop containments can't be removed while in use.
-        //also, don't allow to delete the last desktop containment
+        //it's kinda silly to have a keyboard shortcut for something that can only be used when the
-        //heck, can desktop ctmts even handle being deleted yet?
+        //shortcut isn't active.
-        //so panel has a remove() that tears it down nicely. what does desktop have?
         QAction* closeApplet = new QAction(i18n("Remove this %1", name()), this);
         closeApplet->setIcon(KIcon("edit-delete"));
         closeApplet->setEnabled(unlocked);
@@ -666,8 +665,10 @@ void Applet::flushPendingConstraintsEvents()
         closeApplet->setShortcutContext(Qt::WidgetWithChildrenShortcut); //don't clash with other views
         if (! isContainment()) {
             closeApplet->setShortcut(QKeySequence("ctrl+r"));
-            connect(closeApplet, SIGNAL(triggered(bool)), this, SLOT(destroy()));
+        } else {
+            closeApplet->setShortcut(QKeySequence("ctrl+shift+r"));
         }
+        connect(closeApplet, SIGNAL(triggered(bool)), this, SLOT(destroy()));
         d->actions.addAction("remove", closeApplet);
     }
 

applet.h

@@ -518,7 +518,7 @@ class PLASMA_EXPORT Applet : public QGraphicsWidget
          * Destroys the applet; it will be removed nicely and deleted.
          * Its configuration will also be deleted.
          */
-        void destroy();
+        virtual void destroy();
 
         /**
          * Lets the user interact with the plasmoid options.

containment.cpp

@@ -36,6 +36,7 @@
 #include <KAuthorized>
 #include <KIcon>
 #include <KMenu>
+#include <KMessageBox>
 #include <KMimeType>
 #include <KRun>
 #include <KServiceTypeTrader>
@@ -927,6 +928,19 @@ void Containment::focusPreviousApplet()
     d->focusApplet(d->applets.at(index));
 }
 
+void Containment::destroy()
+{
+    if (immutability() != Mutable) {
+        return;
+    }
+    //FIXME maybe that %1 should be the containment type not the name
+    if (KMessageBox::warningContinueCancel(0, i18n("Do you really want to remove this %1?", name()),
+                     i18n("Remove %1", name()), KStandardGuiItem::remove()) == KMessageBox::Continue ) {
+         clearApplets();
+         corona()->destroyContainment(this);
+    }
+}
+
 
 // Private class implementation
 

containment.h

@@ -350,6 +350,13 @@ class PLASMA_EXPORT Containment : public Applet
          */
         void focusPreviousApplet();
 
+        /**
+         * Destroys this containment and all its applets (after a confirmation dialog);
+         * it will be removed nicely and deleted.
+         * Its configuration will also be deleted.
+         */
+        void destroy();
+
     protected:
         /**
          * Sets the type of this containment.

corona.cpp

@@ -351,6 +351,11 @@ void Corona::destroyContainment(Containment *c)
     if (!d->containments.contains(c)) {
         return;
     }
+    //don't remove a desktop that's in use
+    //FIXME allow removal of containments for screens that don't currently exist
+    if (c->containmentType() != Containment::PanelContainment && c->screen() != -1) {
+        return;
+    }
 
     d->containments.removeAll(c);
     c->config().deleteGroup();