1 files changed, 95 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/ancestormovemonitor.h b/src/3rdparty/phonon/mmf/ancestormovemonitor.h
new file mode 100644
index 0000000..0e681aa
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+++ b/src/3rdparty/phonon/mmf/ancestormovemonitor.h
@@ -0,0 +1,95 @@
+/*  This file is part of the KDE project.
+
+Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+This library is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 2.1 or 3 of the License.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef PHONON_MMF_ANCESTORMOVEMONITOR_H
+#define PHONON_MMF_ANCESTORMOVEMONITOR_H
+
+#include <QObject>
+#include <QHash>
+#include <QList>
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+namespace MMF
+{
+class VideoOutput;
+
+class AncestorMoveMonitor : public QObject
+{
+    Q_OBJECT
+
+public:
+    explicit AncestorMoveMonitor(QObject *parent);
+    ~AncestorMoveMonitor();
+
+    /**
+     * Register target widget for notification.
+     *
+     * The widget receives an ancestorMoveEvent callback when a move event
+     * is delivered to any of its ancestors:
+     *
+     * If the target is already registered, this function causes its
+     * ancestor list to be updated - therefore it should be called when
+     * the target receives a ParentChange event.
+     */
+    void registerTarget(VideoOutput *target);
+
+    /**
+     * Remove target from the monitor.
+     *
+     * The target will no longer receive notification when move events are
+     * delivered to its ancestors.
+     */
+    void unRegisterTarget(VideoOutput *target);
+
+protected:
+    /**
+     * Function which receives events from the global event filter.
+     */
+    bool eventFilter(QObject *watched, QEvent *event);
+
+    void dump();
+
+private:
+    /**
+     * List of registered target widgets which descend from a given
+     * ancestor.
+     *
+     * Note that the members of the list should be non-redundant; this
+     * invariant is checked in debug builds.  Semantically, the value is
+     * therefore a set, however we use QList rather than QSet for
+     * efficiency of iteration.
+     */
+    typedef QList<VideoOutput *> TargetList;
+
+    /**
+     * Map from widget on which the move event occurs, to widgets which
+     * descend from it and therefore need to be notified.
+     */
+    typedef QHash<QObject *, TargetList> Hash;
+    Hash m_hash;
+
+};
+}
+}
+
+QT_END_NAMESPACE
+
+#endif