1 files changed, 88 insertions, 0 deletions
diff --git a/xbmc/dialogs/GUIDialogVolumeBar.cpp b/xbmc/dialogs/GUIDialogVolumeBar.cpp
new file mode 100644
index 0000000..a4d903f
--- /dev/null
+++ b/xbmc/dialogs/GUIDialogVolumeBar.cpp
@@ -0,0 +1,88 @@
+/*
+ *  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.
+ */
+
+#include "GUIDialogVolumeBar.h"
+
+#include "IGUIVolumeBarCallback.h"
+#include "application/ApplicationComponents.h"
+#include "application/ApplicationVolumeHandling.h"
+#include "guilib/GUIMessage.h"
+#include "input/actions/Action.h"
+#include "input/actions/ActionIDs.h"
+
+#include <mutex>
+
+#define VOLUME_BAR_DISPLAY_TIME 1000L
+
+CGUIDialogVolumeBar::CGUIDialogVolumeBar(void)
+  : CGUIDialog(WINDOW_DIALOG_VOLUME_BAR, "DialogVolumeBar.xml", DialogModalityType::MODELESS)
+{
+  m_loadType = LOAD_ON_GUI_INIT;
+}
+
+CGUIDialogVolumeBar::~CGUIDialogVolumeBar(void) = default;
+
+bool CGUIDialogVolumeBar::OnAction(const CAction &action)
+{
+  if (action.GetID() == ACTION_VOLUME_UP || action.GetID() == ACTION_VOLUME_DOWN || action.GetID() == ACTION_VOLUME_SET || action.GetID() == ACTION_MUTE)
+  {
+    const auto& components = CServiceBroker::GetAppComponents();
+    const auto appVolume = components.GetComponent<CApplicationVolumeHandling>();
+    if (appVolume->IsMuted() ||
+        appVolume->GetVolumeRatio() <= CApplicationVolumeHandling::VOLUME_MINIMUM)
+    { // cancel the timer, dialog needs to stay visible
+      CancelAutoClose();
+    }
+    else
+    { // reset the timer, as we've changed the volume level
+      SetAutoClose(VOLUME_BAR_DISPLAY_TIME);
+    }
+    MarkDirtyRegion();
+    return true;
+  }
+  return CGUIDialog::OnAction(action);
+}
+
+bool CGUIDialogVolumeBar::OnMessage(CGUIMessage& message)
+{
+  switch (message.GetMessage())
+  {
+  case GUI_MSG_WINDOW_INIT:
+  case GUI_MSG_WINDOW_DEINIT:
+    return CGUIDialog::OnMessage(message);
+  }
+  return false; // don't process anything other than what we need!
+}
+
+void CGUIDialogVolumeBar::RegisterCallback(IGUIVolumeBarCallback *callback)
+{
+  std::unique_lock<CCriticalSection> lock(m_callbackMutex);
+
+  m_callbacks.insert(callback);
+}
+
+void CGUIDialogVolumeBar::UnregisterCallback(IGUIVolumeBarCallback *callback)
+{
+  std::unique_lock<CCriticalSection> lock(m_callbackMutex);
+
+  m_callbacks.erase(callback);
+}
+
+bool CGUIDialogVolumeBar::IsVolumeBarEnabled() const
+{
+  std::unique_lock<CCriticalSection> lock(m_callbackMutex);
+
+  // Hide volume bar if any callbacks are shown
+  for (const auto &callback : m_callbacks)
+  {
+    if (callback->IsShown())
+      return false;
+  }
+
+  return true;
+}