xbmc/dialogs/GUIDialogVolumeBar.cpp

   1 /*
   2  *  Copyright (C) 2005-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "GUIDialogVolumeBar.h"
  10
  11 #include "IGUIVolumeBarCallback.h"
  12 #include "application/ApplicationComponents.h"
  13 #include "application/ApplicationVolumeHandling.h"
  14 #include "guilib/GUIMessage.h"
  15 #include "input/actions/Action.h"
  16 #include "input/actions/ActionIDs.h"
  17
  18 #include <mutex>
  19
  20 #define VOLUME_BAR_DISPLAY_TIME 1000L
  21
  22 CGUIDialogVolumeBar::CGUIDialogVolumeBar(void)
  23   : CGUIDialog(WINDOW_DIALOG_VOLUME_BAR, "DialogVolumeBar.xml", DialogModalityType::MODELESS)
  24 {
  25   m_loadType = LOAD_ON_GUI_INIT;
  26 }
  27
  28 CGUIDialogVolumeBar::~CGUIDialogVolumeBar(void) = default;
  29
  30 bool CGUIDialogVolumeBar::OnAction(const CAction &action)
  31 {
  32   if (action.GetID() == ACTION_VOLUME_UP || action.GetID() == ACTION_VOLUME_DOWN || action.GetID() == ACTION_VOLUME_SET || action.GetID() == ACTION_MUTE)
  33   {
  34     const auto& components = CServiceBroker::GetAppComponents();
  35     const auto appVolume = components.GetComponent<CApplicationVolumeHandling>();
  36     if (appVolume->IsMuted() ||
  37         appVolume->GetVolumeRatio() <= CApplicationVolumeHandling::VOLUME_MINIMUM)
  38     { // cancel the timer, dialog needs to stay visible
  39       CancelAutoClose();
  40     }
  41     else
  42     { // reset the timer, as we've changed the volume level
  43       SetAutoClose(VOLUME_BAR_DISPLAY_TIME);
  44     }
  45     MarkDirtyRegion();
  46     return true;
  47   }
  48   return CGUIDialog::OnAction(action);
  49 }
  50
  51 bool CGUIDialogVolumeBar::OnMessage(CGUIMessage& message)
  52 {
  53   switch (message.GetMessage())
  54   {
  55   case GUI_MSG_WINDOW_INIT:
  56   case GUI_MSG_WINDOW_DEINIT:
  57     return CGUIDialog::OnMessage(message);
  58   }
  59   return false; // don't process anything other than what we need!
  60 }
  61
  62 void CGUIDialogVolumeBar::RegisterCallback(IGUIVolumeBarCallback *callback)
  63 {
  64   std::unique_lock<CCriticalSection> lock(m_callbackMutex);
  65
  66   m_callbacks.insert(callback);
  67 }
  68
  69 void CGUIDialogVolumeBar::UnregisterCallback(IGUIVolumeBarCallback *callback)
  70 {
  71   std::unique_lock<CCriticalSection> lock(m_callbackMutex);
  72
  73   m_callbacks.erase(callback);
  74 }
  75
  76 bool CGUIDialogVolumeBar::IsVolumeBarEnabled() const
  77 {
  78   std::unique_lock<CCriticalSection> lock(m_callbackMutex);
  79
  80   // Hide volume bar if any callbacks are shown
  81   for (const auto &callback : m_callbacks)
  82   {
  83     if (callback->IsShown())
  84       return false;
  85   }
  86
  87   return true;
  88 }