1 files changed, 201 insertions, 0 deletions
diff --git a/xbmc/application/ApplicationVolumeHandling.cpp b/xbmc/application/ApplicationVolumeHandling.cpp
new file mode 100644
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--- /dev/null
+++ b/xbmc/application/ApplicationVolumeHandling.cpp
@@ -0,0 +1,201 @@
+/*
+ *  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 "ApplicationVolumeHandling.h"
+
+#include "ServiceBroker.h"
+#include "application/ApplicationComponents.h"
+#include "application/ApplicationPlayer.h"
+#include "cores/AudioEngine/Interfaces/AE.h"
+#include "dialogs/GUIDialogVolumeBar.h"
+#include "guilib/GUIComponent.h"
+#include "guilib/GUIWindowManager.h"
+#include "interfaces/AnnouncementManager.h"
+#include "peripherals/Peripherals.h"
+#include "settings/Settings.h"
+#include "settings/lib/Setting.h"
+#include "utils/Variant.h"
+#include "utils/XMLUtils.h"
+
+#include <tinyxml.h>
+
+float CApplicationVolumeHandling::GetVolumePercent() const
+{
+  // converts the hardware volume to a percentage
+  return m_volumeLevel * 100.0f;
+}
+
+float CApplicationVolumeHandling::GetVolumeRatio() const
+{
+  return m_volumeLevel;
+}
+
+void CApplicationVolumeHandling::SetHardwareVolume(float hardwareVolume)
+{
+  m_volumeLevel = std::clamp(hardwareVolume, VOLUME_MINIMUM, VOLUME_MAXIMUM);
+
+  IAE* ae = CServiceBroker::GetActiveAE();
+  if (ae)
+    ae->SetVolume(m_volumeLevel);
+}
+
+void CApplicationVolumeHandling::VolumeChanged()
+{
+  CVariant data(CVariant::VariantTypeObject);
+  data["volume"] = static_cast<int>(std::lroundf(GetVolumePercent()));
+  data["muted"] = m_muted;
+  const auto announcementMgr = CServiceBroker::GetAnnouncementManager();
+  announcementMgr->Announce(ANNOUNCEMENT::Application, "OnVolumeChanged", data);
+
+  auto& components = CServiceBroker::GetAppComponents();
+  const auto appPlayer = components.GetComponent<CApplicationPlayer>();
+  // if player has volume control, set it.
+  if (appPlayer)
+  {
+    appPlayer->SetVolume(m_volumeLevel);
+    appPlayer->SetMute(m_muted);
+  }
+}
+
+void CApplicationVolumeHandling::ShowVolumeBar(const CAction* action)
+{
+  const auto& wm = CServiceBroker::GetGUI()->GetWindowManager();
+  auto* volumeBar = wm.GetWindow<CGUIDialogVolumeBar>(WINDOW_DIALOG_VOLUME_BAR);
+  if (volumeBar != nullptr && volumeBar->IsVolumeBarEnabled())
+  {
+    volumeBar->Open();
+    if (action)
+      volumeBar->OnAction(*action);
+  }
+}
+
+bool CApplicationVolumeHandling::IsMuted() const
+{
+  if (CServiceBroker::GetPeripherals().IsMuted())
+    return true;
+  IAE* ae = CServiceBroker::GetActiveAE();
+  if (ae)
+    return ae->IsMuted();
+  return true;
+}
+
+void CApplicationVolumeHandling::ToggleMute(void)
+{
+  if (m_muted)
+    UnMute();
+  else
+    Mute();
+}
+
+void CApplicationVolumeHandling::SetMute(bool mute)
+{
+  if (m_muted != mute)
+  {
+    ToggleMute();
+    m_muted = mute;
+  }
+}
+
+void CApplicationVolumeHandling::Mute()
+{
+  if (CServiceBroker::GetPeripherals().Mute())
+    return;
+
+  IAE* ae = CServiceBroker::GetActiveAE();
+  if (ae)
+    ae->SetMute(true);
+  m_muted = true;
+  VolumeChanged();
+}
+
+void CApplicationVolumeHandling::UnMute()
+{
+  if (CServiceBroker::GetPeripherals().UnMute())
+    return;
+
+  IAE* ae = CServiceBroker::GetActiveAE();
+  if (ae)
+    ae->SetMute(false);
+  m_muted = false;
+  VolumeChanged();
+}
+
+void CApplicationVolumeHandling::SetVolume(float iValue, bool isPercentage)
+{
+  float hardwareVolume = iValue;
+
+  if (isPercentage)
+    hardwareVolume /= 100.0f;
+
+  SetHardwareVolume(hardwareVolume);
+  VolumeChanged();
+}
+
+void CApplicationVolumeHandling::CacheReplayGainSettings(const CSettings& settings)
+{
+  // initialize m_replayGainSettings
+  m_replayGainSettings.iType = settings.GetInt(CSettings::SETTING_MUSICPLAYER_REPLAYGAINTYPE);
+  m_replayGainSettings.iPreAmp = settings.GetInt(CSettings::SETTING_MUSICPLAYER_REPLAYGAINPREAMP);
+  m_replayGainSettings.iNoGainPreAmp =
+      settings.GetInt(CSettings::SETTING_MUSICPLAYER_REPLAYGAINNOGAINPREAMP);
+  m_replayGainSettings.bAvoidClipping =
+      settings.GetBool(CSettings::SETTING_MUSICPLAYER_REPLAYGAINAVOIDCLIPPING);
+}
+
+bool CApplicationVolumeHandling::Load(const TiXmlNode* settings)
+{
+  if (!settings)
+    return false;
+
+  const TiXmlElement* audioElement = settings->FirstChildElement("audio");
+  if (audioElement)
+  {
+    XMLUtils::GetBoolean(audioElement, "mute", m_muted);
+    if (!XMLUtils::GetFloat(audioElement, "fvolumelevel", m_volumeLevel, VOLUME_MINIMUM,
+                            VOLUME_MAXIMUM))
+      m_volumeLevel = VOLUME_MAXIMUM;
+  }
+
+  return true;
+}
+
+bool CApplicationVolumeHandling::Save(TiXmlNode* settings) const
+{
+  if (!settings)
+    return false;
+
+  TiXmlElement volumeNode("audio");
+  TiXmlNode* audioNode = settings->InsertEndChild(volumeNode);
+  if (!audioNode)
+    return false;
+
+  XMLUtils::SetBoolean(audioNode, "mute", m_muted);
+  XMLUtils::SetFloat(audioNode, "fvolumelevel", m_volumeLevel);
+
+  return true;
+}
+
+bool CApplicationVolumeHandling::OnSettingChanged(const CSetting& setting)
+{
+  const std::string& settingId = setting.GetId();
+
+  if (StringUtils::EqualsNoCase(settingId, CSettings::SETTING_MUSICPLAYER_REPLAYGAINTYPE))
+    m_replayGainSettings.iType = static_cast<const CSettingInt&>(setting).GetValue();
+  else if (StringUtils::EqualsNoCase(settingId, CSettings::SETTING_MUSICPLAYER_REPLAYGAINPREAMP))
+    m_replayGainSettings.iPreAmp = static_cast<const CSettingInt&>(setting).GetValue();
+  else if (StringUtils::EqualsNoCase(settingId,
+                                     CSettings::SETTING_MUSICPLAYER_REPLAYGAINNOGAINPREAMP))
+    m_replayGainSettings.iNoGainPreAmp = static_cast<const CSettingInt&>(setting).GetValue();
+  else if (StringUtils::EqualsNoCase(settingId,
+                                     CSettings::SETTING_MUSICPLAYER_REPLAYGAINAVOIDCLIPPING))
+    m_replayGainSettings.bAvoidClipping = static_cast<const CSettingBool&>(setting).GetValue();
+  else
+    return false;
+
+  return true;
+}