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/ArtUtils.h"
  15 #include "utils/FileUtils.h"
  16
  17 using namespace KODI;
  18
  19 CThumbLoader::CThumbLoader() :
  20   CBackgroundInfoLoader()
  21 {
  22   m_textureDatabase = new CTextureDatabase();
  23 }
  24
  25 CThumbLoader::~CThumbLoader()
  26 {
  27   delete m_textureDatabase;
  28 }
  29
  30 void CThumbLoader::OnLoaderStart()
  31 {
  32   m_textureDatabase->Open();
  33 }
  34
  35 void CThumbLoader::OnLoaderFinish()
  36 {
  37   m_textureDatabase->Close();
  38 }
  39
  40 std::string CThumbLoader::GetCachedImage(const CFileItem &item, const std::string &type)
  41 {
  42   if (!item.GetPath().empty() && m_textureDatabase->Open())
  43   {
  44     std::string image = m_textureDatabase->GetTextureForPath(item.GetPath(), type);
  45     m_textureDatabase->Close();
  46     return image;
  47   }
  48   return "";
  49 }
  50
  51 void CThumbLoader::SetCachedImage(const CFileItem &item, const std::string &type, const std::string &image)
  52 {
  53   if (!item.GetPath().empty() && m_textureDatabase->Open())
  54   {
  55     m_textureDatabase->SetTextureForPath(item.GetPath(), type, image);
  56     m_textureDatabase->Close();
  57   }
  58 }
  59
  60 CProgramThumbLoader::CProgramThumbLoader() = default;
  61
  62 CProgramThumbLoader::~CProgramThumbLoader() = default;
  63
  64 bool CProgramThumbLoader::LoadItem(CFileItem *pItem)
  65 {
  66   bool result  = LoadItemCached(pItem);
  67        result |= LoadItemLookup(pItem);
  68
  69   return result;
  70 }
  71
  72 bool CProgramThumbLoader::LoadItemCached(CFileItem *pItem)
  73 {
  74   if (pItem->IsParentFolder())
  75     return false;
  76
  77   return FillThumb(*pItem);
  78 }
  79
  80 bool CProgramThumbLoader::LoadItemLookup(CFileItem *pItem)
  81 {
  82   return false;
  83 }
  84
  85 bool CProgramThumbLoader::FillThumb(CFileItem &item)
  86 {
  87   // no need to do anything if we already have a thumb set
  88   std::string thumb = item.GetArt("thumb");
  89
  90   if (thumb.empty())
  91   { // see whether we have a cached image for this item
  92     thumb = GetCachedImage(item, "thumb");
  93     if (thumb.empty())
  94     {
  95       thumb = GetLocalThumb(item);
  96       if (!thumb.empty())
  97         SetCachedImage(item, "thumb", thumb);
  98     }
  99   }
 100
 101   if (!thumb.empty())
 102   {
 103     CServiceBroker::GetTextureCache()->BackgroundCacheImage(thumb);
 104     item.SetArt("thumb", thumb);
 105   }
 106   return true;
 107 }
 108
 109 std::string CProgramThumbLoader::GetLocalThumb(const CFileItem &item)
 110 {
 111   if (item.IsAddonsPath())
 112     return "";
 113
 114   // look for the thumb
 115   if (item.m_bIsFolder)
 116   {
 117     const std::string folderThumb = ART::GetFolderThumb(item);
 118     if (CFileUtils::Exists(folderThumb))
 119       return folderThumb;
 120   }
 121   else
 122   {
 123     std::string fileThumb(ART::GetTBNFile(item));
 124     if (CFileUtils::Exists(fileThumb))
 125       return fileThumb;
 126   }
 127   return "";
 128 }