allow swapping of arbitrary containments, not just this view's containment

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=872751

view.cpp

@@ -253,7 +253,16 @@ Containment *View::containment() const
 
 Containment *View::swapContainment(const QString &name, const QVariantList &args)
 {
-    Containment *old = d->containment;
+    return swapContainment(d->containment, name, args);
+}
+
+Containment *View::swapContainment(Plasma::Containment *existing, const QString &name, const QVariantList &args)
+{
+    if (!existing) {
+        return 0;
+    }
+
+    Containment *old = existing;
     Plasma::Corona *corona = old->corona();
     Plasma::Containment *c = corona->addContainment(name, args);
     if (c) {
@@ -263,8 +272,10 @@ Containment *View::swapContainment(const QString &name, const QVariantList &args
         // ensure that the old containments configuration is up to date
         old->save(oldConfig);
 
+        if (old == d->containment) {
             // set our containment to the new one
             setContainment(c);
+        }
 
         // Copy configuration to new containment
         oldConfig.copyTo(&newConfig);
@@ -286,6 +297,7 @@ Containment *View::swapContainment(const QString &name, const QVariantList &args
 
         return c;
     }
+
     return old;
 }
 

view.h

@@ -121,6 +121,17 @@ public:
      */
     Containment *containment() const;
 
+    /**
+     * Swaps one containment with another.
+     *
+     * @param existing the existing containment to swap out
+     * @param name the plugin name for the new containment.
+     * @param args argument list to pass to the containment
+     */
+    Containment *swapContainment(Plasma::Containment *existing,
+                                 const QString &name,
+                                 const QVariantList &args = QVariantList());
+
     /**
      * Swap the containment for this view, which will also cause the view
      * to track the geometry of the containment.