1 files changed, 34 insertions, 0 deletions
diff --git a/xbmc/dialogs/GUIDialogVolumeBar.h b/xbmc/dialogs/GUIDialogVolumeBar.h
new file mode 100644
index 0000000..e8413d0
--- /dev/null
+++ b/xbmc/dialogs/GUIDialogVolumeBar.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include "guilib/GUIDialog.h"
+#include "threads/CriticalSection.h"
+
+#include <set>
+
+class IGUIVolumeBarCallback;
+
+class CGUIDialogVolumeBar : public CGUIDialog
+{
+public:
+  CGUIDialogVolumeBar(void);
+  ~CGUIDialogVolumeBar(void) override;
+  bool OnMessage(CGUIMessage& message) override;
+  bool OnAction(const CAction &action) override;
+
+  // Volume bar interface
+  void RegisterCallback(IGUIVolumeBarCallback *callback);
+  void UnregisterCallback(IGUIVolumeBarCallback *callback);
+  bool IsVolumeBarEnabled() const;
+
+private:
+  std::set<IGUIVolumeBarCallback*> m_callbacks;
+  mutable CCriticalSection m_callbackMutex;
+};