xbmc/windowing/OSScreenSaver.cpp

   1 /*
   2  *  Copyright (C) 2017-2018 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 "OSScreenSaver.h"
  10
  11 #include "utils/log.h"
  12
  13 using namespace KODI::WINDOWING;
  14
  15 COSScreenSaverManager::COSScreenSaverManager(std::unique_ptr<IOSScreenSaver> impl)
  16 : m_impl{std::move(impl)}
  17 {
  18 }
  19
  20 COSScreenSaverInhibitor COSScreenSaverManager::CreateInhibitor()
  21 {
  22   COSScreenSaverInhibitor inhibitor{this};
  23   if (m_inhibitionCount++ == 0)
  24   {
  25     // Inhibit if this was first inhibitor
  26     CLog::Log(LOGDEBUG, "Inhibiting OS screen saver");
  27     m_impl->Inhibit();
  28   }
  29   return inhibitor;
  30 }
  31
  32 bool COSScreenSaverManager::IsInhibited()
  33 {
  34   return (m_inhibitionCount > 0);
  35 }
  36
  37 void COSScreenSaverManager::RemoveInhibitor()
  38 {
  39   if (--m_inhibitionCount == 0)
  40   {
  41     CLog::Log(LOGDEBUG, "Uninhibiting OS screen saver");
  42     // Uninhibit if this was last inhibitor
  43     m_impl->Uninhibit();
  44   }
  45 }
  46
  47 COSScreenSaverInhibitor::COSScreenSaverInhibitor() noexcept
  48 : m_active{false}, m_manager{}
  49 {
  50 }
  51
  52 COSScreenSaverInhibitor::COSScreenSaverInhibitor(COSScreenSaverManager* manager)
  53 : m_active{true}, m_manager{manager}
  54 {
  55 }
  56
  57 COSScreenSaverInhibitor::COSScreenSaverInhibitor(COSScreenSaverInhibitor&& other) noexcept
  58 : m_active{false}, m_manager{}
  59 {
  60   *this = std::move(other);
  61 }
  62
  63 COSScreenSaverInhibitor& COSScreenSaverInhibitor::operator=(COSScreenSaverInhibitor&& other) noexcept
  64 {
  65   Release();
  66   m_active = other.m_active;
  67   m_manager = other.m_manager;
  68   other.m_active = false;
  69   other.m_manager = nullptr;
  70   return *this;
  71 }
  72
  73 bool COSScreenSaverInhibitor::IsActive() const
  74 {
  75   return m_active;
  76 }
  77
  78 COSScreenSaverInhibitor::operator bool() const
  79 {
  80   return IsActive();
  81 }
  82
  83 void COSScreenSaverInhibitor::Release()
  84 {
  85   if (m_active)
  86   {
  87     m_manager->RemoveInhibitor();
  88     m_active = false;
  89   }
  90 }
  91
  92 COSScreenSaverInhibitor::~COSScreenSaverInhibitor() noexcept
  93 {
  94   Release();
  95 }
  96
  97
  98