xbmc/ThumbLoader.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 "ThumbLoader.h"
  10
  11 #include "FileItem.h"
  12 #include "ServiceBroker.h"
  13 #include "TextureCache.h"
  14 #include "utils/FileUtils.h"
  15
  16 CThumbLoader::CThumbLoader() :
  17   CBackgroundInfoLoader()
  18 {
  19   m_textureDatabase = new CTextureDatabase();
  20 }
  21
  22 CThumbLoader::~CThumbLoader()
  23 {
  24   delete m_textureDatabase;
  25 }
  26
  27 void CThumbLoader::OnLoaderStart()
  28 {
  29   m_textureDatabase->Open();
  30 }
  31
  32 void CThumbLoader::OnLoaderFinish()
  33 {
  34   m_textureDatabase->Close();
  35 }
  36
  37 std::string CThumbLoader::GetCachedImage(const CFileItem &item, const std::string &type)
  38 {
  39   if (!item.GetPath().empty() && m_textureDatabase->Open())
  40   {
  41     std::string image = m_textureDatabase->GetTextureForPath(item.GetPath(), type);
  42     m_textureDatabase->Close();
  43     return image;
  44   }
  45   return "";
  46 }
  47
  48 void CThumbLoader::SetCachedImage(const CFileItem &item, const std::string &type, const std::string &image)
  49 {
  50   if (!item.GetPath().empty() && m_textureDatabase->Open())
  51   {
  52     m_textureDatabase->SetTextureForPath(item.GetPath(), type, image);
  53     m_textureDatabase->Close();
  54   }
  55 }
  56
  57 CProgramThumbLoader::CProgramThumbLoader() = default;
  58
  59 CProgramThumbLoader::~CProgramThumbLoader() = default;
  60
  61 bool CProgramThumbLoader::LoadItem(CFileItem *pItem)
  62 {
  63   bool result  = LoadItemCached(pItem);
  64        result |= LoadItemLookup(pItem);
  65
  66   return result;
  67 }
  68
  69 bool CProgramThumbLoader::LoadItemCached(CFileItem *pItem)
  70 {
  71   if (pItem->IsParentFolder())
  72     return false;
  73
  74   return FillThumb(*pItem);
  75 }
  76
  77 bool CProgramThumbLoader::LoadItemLookup(CFileItem *pItem)
  78 {
  79   return false;
  80 }
  81
  82 bool CProgramThumbLoader::FillThumb(CFileItem &item)
  83 {
  84   // no need to do anything if we already have a thumb set
  85   std::string thumb = item.GetArt("thumb");
  86
  87   if (thumb.empty())
  88   { // see whether we have a cached image for this item
  89     thumb = GetCachedImage(item, "thumb");
  90     if (thumb.empty())
  91     {
  92       thumb = GetLocalThumb(item);
  93       if (!thumb.empty())
  94         SetCachedImage(item, "thumb", thumb);
  95     }
  96   }
  97
  98   if (!thumb.empty())
  99   {
 100     CServiceBroker::GetTextureCache()->BackgroundCacheImage(thumb);
 101     item.SetArt("thumb", thumb);
 102   }
 103   return true;
 104 }
 105
 106 std::string CProgramThumbLoader::GetLocalThumb(const CFileItem &item)
 107 {
 108   if (item.IsAddonsPath())
 109     return "";
 110
 111   // look for the thumb
 112   if (item.m_bIsFolder)
 113   {
 114     std::string folderThumb = item.GetFolderThumb();
 115     if (CFileUtils::Exists(folderThumb))
 116       return folderThumb;
 117   }
 118   else
 119   {
 120     std::string fileThumb(item.GetTBNFile());
 121     if (CFileUtils::Exists(fileThumb))
 122       return fileThumb;
 123   }
 124   return "";
 125 }