xbmc/pvr/PVRThumbLoader.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 "PVRThumbLoader.h"
  10
  11 #include "FileItem.h"
  12 #include "ServiceBroker.h"
  13 #include "TextureCache.h"
  14 #include "pvr/PVRManager.h"
  15 #include "pvr/filesystem/PVRGUIDirectory.h"
  16 #include "settings/AdvancedSettings.h"
  17 #include "settings/Settings.h"
  18 #include "settings/SettingsComponent.h"
  19 #include "utils/StringUtils.h"
  20 #include "utils/log.h"
  21
  22 #include <ctime>
  23
  24 using namespace PVR;
  25
  26 bool CPVRThumbLoader::LoadItem(CFileItem* item)
  27 {
  28   bool result = LoadItemCached(item);
  29   result |= LoadItemLookup(item);
  30   return result;
  31 }
  32
  33 bool CPVRThumbLoader::LoadItemCached(CFileItem* item)
  34 {
  35   return FillThumb(*item);
  36 }
  37
  38 bool CPVRThumbLoader::LoadItemLookup(CFileItem* item)
  39 {
  40   return false;
  41 }
  42
  43 void CPVRThumbLoader::OnLoaderFinish()
  44 {
  45   if (m_bInvalidated)
  46   {
  47     m_bInvalidated = false;
  48     CServiceBroker::GetPVRManager().PublishEvent(PVREvent::ChannelGroupsInvalidated);
  49   }
  50   CThumbLoader::OnLoaderFinish();
  51 }
  52
  53 void CPVRThumbLoader::ClearCachedImage(CFileItem& item)
  54 {
  55   const std::string thumb = item.GetArt("thumb");
  56   if (!thumb.empty())
  57   {
  58     CServiceBroker::GetTextureCache()->ClearCachedImage(thumb);
  59     if (m_textureDatabase->Open())
  60     {
  61       m_textureDatabase->ClearTextureForPath(item.GetPath(), "thumb");
  62       m_textureDatabase->Close();
  63     }
  64     item.SetArt("thumb", "");
  65     m_bInvalidated = true;
  66   }
  67 }
  68
  69 void CPVRThumbLoader::ClearCachedImages(const CFileItemList& items)
  70 {
  71   for (auto& item : items)
  72     ClearCachedImage(*item);
  73 }
  74
  75 bool CPVRThumbLoader::FillThumb(CFileItem& item)
  76 {
  77   // see whether we have a cached image for this item
  78   std::string thumb = GetCachedImage(item, "thumb");
  79   if (thumb.empty())
  80   {
  81     if (item.IsPVRChannelGroup())
  82       thumb = CreateChannelGroupThumb(item);
  83     else
  84       CLog::LogF(LOGERROR, "Unsupported PVR item '{}'", item.GetPath());
  85
  86     if (!thumb.empty())
  87     {
  88       SetCachedImage(item, "thumb", thumb);
  89       m_bInvalidated = true;
  90     }
  91   }
  92
  93   if (thumb.empty())
  94     return false;
  95
  96   item.SetArt("thumb", thumb);
  97   return true;
  98 }
  99
 100 std::string CPVRThumbLoader::CreateChannelGroupThumb(const CFileItem& channelGroupItem)
 101 {
 102   return StringUtils::Format("{}?ts={}", // append timestamp to Thumb URL to enforce texture refresh
 103                              CTextureUtils::GetWrappedImageURL(channelGroupItem.GetPath(), "pvr"),
 104                              std::time(nullptr));
 105 }