API change: instead of Containment having activityId functions, it just

exposes the whole Context*.
The activity functions have to be left in for BC, and they still work as
they did before.

svn path=/trunk/KDE/kdelibs/; revision=1125570

containment.cpp

@@ -359,7 +359,7 @@ void Containment::restore(KConfigGroup &group)
     setScreen(group.readEntry("screen", d->screen), group.readEntry("desktop", d->desktop));
     QString activityId = group.readEntry("activityId", QString());
     if (!activityId.isEmpty()) {
-        setActivityId(activityId);
+        d->context()->setCurrentActivityId(activityId);
     }
     setActivity(group.readEntry("activity", QString()));
 
@@ -1971,39 +1971,34 @@ void Containment::setActivity(const QString &activity)
     Context *context = d->context();
     if (context->currentActivity() != activity) {
         context->setCurrentActivity(activity);
-
-        foreach (Applet *a, d->applets) {
-            a->updateConstraints(ContextConstraint);
-        }
-
-        KConfigGroup c = config();
-        c.writeEntry("activity", activity);
-
-        if (d->toolBox) {
-            d->toolBox.data()->update();
-        }
-        emit configNeedsSaving();
     }
 }
 
-void Containment::setActivityId(const QString &activity)
+void ContainmentPrivate::onContextChanged(Plasma::Context *con)
 {
-    Context *context = d->context();
+    foreach (Applet *a, applets) {
-    if (context->currentActivityId() != activity) {
-        context->setCurrentActivityId(activity);
-
-        foreach (Applet *a, d->applets) {
         a->updateConstraints(ContextConstraint);
     }
 
-        KConfigGroup c = config();
+    KConfigGroup c = q->config();
-        c.writeEntry("activityId", activity);
+    QString act = con->currentActivityId();
 
-        if (d->toolBox) {
+    //save anything that's been set (boy I hope this avoids overwriting things)
-            d->toolBox.data()->update();
+    //FIXME of course if the user sets the name to an empty string we have a bug
+    //but once we get context retrieving the name as soon as the id is set, this issue should go away
+    if (!act.isEmpty()) {
+        c.writeEntry("activityId", act);
     }
-        emit configNeedsSaving();
+    act = con->currentActivity();
+    if (!act.isEmpty()) {
+        c.writeEntry("activity", act);
     }
+
+    if (toolBox) {
+        toolBox.data()->update();
+    }
+    emit q->configNeedsSaving();
+    emit q->contextChanged(con);
 }
 
 QString Containment::activity() const
@@ -2011,9 +2006,9 @@ QString Containment::activity() const
     return d->context()->currentActivity();
 }
 
-QString Containment::activityId() const
+Context *Containment::context() const
 {
-    return d->context()->currentActivityId();
+    return d->context();
 }
 
 Context *ContainmentPrivate::context()
@@ -2021,9 +2016,7 @@ Context *ContainmentPrivate::context()
     if (!con) {
         con = new Context(q);
         q->connect(con, SIGNAL(changed(Plasma::Context*)),
-                   q, SIGNAL(contextChanged(Plasma::Context*)));
+                   q, SLOT(onContextChanged(Plasma::Context*)));
-        q->connect(con, SIGNAL(activityChanged(Plasma::Context*)),
-                   q, SIGNAL(activityNameChanged(Plasma::Context*)));
     }
 
     return con;

containment.h

@@ -352,18 +352,10 @@ class PLASMA_EXPORT Containment : public Applet
         QString activity() const;
 
         /**
-         * Sets the current activity by id
+         * @return the context for this containment
-         *
-         * @param activity the id of the activity
          * @since 4.5
          */
-        void setActivityId(const QString &activity);
+        Context* context() const;
-
-        /**
-         * @return the current activity id associated with this containment
-         * @since 4.5
-         */
-        QString activityId() const;
 
         /**
          * Shows the context menu for the containment directly, bypassing Applets
@@ -464,11 +456,6 @@ class PLASMA_EXPORT Containment : public Applet
          * The context associated to this containment has changed
          */
         void contextChanged(Plasma::Context *context);
-        /**
-         * The activity name for the context associated to this containment has changed
-         * @since 4.5
-         */
-        void activityNameChanged(Plasma::Context *context);
 
     public Q_SLOTS:
         /**
@@ -632,6 +619,7 @@ class PLASMA_EXPORT Containment : public Applet
         Q_PRIVATE_SLOT(d, void showDropZoneDelayed())
         Q_PRIVATE_SLOT(d, void checkStatus(Plasma::ItemStatus))
         Q_PRIVATE_SLOT(d, void remoteAppletReady(Plasma::AccessAppletJob *))
+        Q_PRIVATE_SLOT(d, void onContextChanged(Plasma::Context *con))
         /**
         * This slot is called when the 'stat' after a job event has finished.
         */

private/containment_p.h

@@ -120,6 +120,11 @@ public:
      */
     Context *context();
 
+    /**
+     * propogates context changes
+     */
+    void onContextChanged(Plasma::Context *con);
+
     /**
      * Handles dropped/pasted mimetype data
      * @param scenePos scene-relative position