C++ CFileItemList::Save方法代码示例

// \brief Sorts Fileitems based on the sort method and sort oder provided by guiViewState
void CGUIMediaWindow::SortItems(CFileItemList &items)
{
  auto_ptr<CGUIViewState> guiState(CGUIViewState::GetViewState(GetID(), items));

  if (guiState.get())
  {
    items.Sort(guiState->GetSortMethod(), guiState->GetDisplaySortOrder());

    // Should these items be saved to the hdd
    if (items.CacheToDiscAlways())
      items.Save(GetID());
  }
}

/*!
  \brief Overwrite to fill fileitems from a source
  \param strDirectory Path to read
  \param items Fill with items specified in \e strDirectory
  */
bool CGUIMediaWindow::GetDirectory(const CStdString &strDirectory, CFileItemList &items)
{
  // cleanup items
  if (items.Size())
    items.Clear();

  CStdString strParentPath=m_history.GetParentPath();

  CLog::Log(LOGDEBUG,"CGUIMediaWindow::GetDirectory (%s)", strDirectory.c_str());
  CLog::Log(LOGDEBUG,"  ParentPath = [%s]", strParentPath.c_str());

  if (m_guiState.get() && !m_guiState->HideParentDirItems())
  {
    CFileItem *pItem = new CFileItem("..");
    pItem->m_strPath = strParentPath;
    pItem->m_bIsFolder = true;
    pItem->m_bIsShareOrDrive = false;
    items.Add(pItem);
  }

  // see if we can load a previously cached folder
  CFileItemList cachedItems(strDirectory);
  if (!strDirectory.IsEmpty() && cachedItems.Load())
  {
    items.AssignPointer(cachedItems, true); // true to keep any previous items (".." item)
    cachedItems.ClearKeepPointer();
  }
  else
  {
    DWORD time = timeGetTime();

    if (!m_rootDir.GetDirectory(strDirectory, items))
      return false;

    // took over a second, and not normally cached, so cache it
    if (time + 1000 < timeGetTime() && !items.GetCacheToDisc())
      items.Save();

    // if these items should replace the current listing, then pop it off the top
    if (items.GetReplaceListing())
      m_history.RemoveParentPath();
  }
  return true;
}

/*!
  \brief Overwrite to fill fileitems from a source
  \param strDirectory Path to read
  \param items Fill with items specified in \e strDirectory
  */
bool CGUIMediaWindow::GetDirectory(const CStdString &strDirectory, CFileItemList &items)
{
  // cleanup items
  if (items.Size())
    items.Clear();

  CStdString strParentPath=m_history.GetParentPath();

  CLog::Log(LOGDEBUG,"CGUIMediaWindow::GetDirectory (%s)", strDirectory.c_str());
  CLog::Log(LOGDEBUG,"  ParentPath = [%s]", strParentPath.c_str());

  // see if we can load a previously cached folder
  CFileItemList cachedItems(strDirectory);
  if (!strDirectory.IsEmpty() && cachedItems.Load(GetID()))
  {
    items.Assign(cachedItems);
  }
  else
  {
    unsigned int time = XbmcThreads::SystemClockMillis();

    if (strDirectory.IsEmpty())
      SetupShares();

    if (!m_rootDir.GetDirectory(strDirectory, items))
      return false;

    // took over a second, and not normally cached, so cache it
    if ((XbmcThreads::SystemClockMillis() - time) > 1000  && items.CacheToDiscIfSlow())
      items.Save(GetID());

    // if these items should replace the current listing, then pop it off the top
    if (items.GetReplaceListing())
      m_history.RemoveParentPath();
  }

  if (m_guiState.get() && !m_guiState->HideParentDirItems() && items.GetPath() != m_startDirectory)
  {
    CFileItemPtr pItem(new CFileItem(".."));
    pItem->SetPath(strParentPath);
    pItem->m_bIsFolder = true;
    pItem->m_bIsShareOrDrive = false;
    items.AddFront(pItem, 0);
  }

  CStdStringArray regexps;
  int iWindow = GetID();

  // TODO: Do we want to limit the directories we apply the video ones to?
  if (iWindow == WINDOW_VIDEO_NAV)
    regexps = g_advancedSettings.m_videoExcludeFromListingRegExps;
  if (iWindow == WINDOW_MUSIC_FILES)
    regexps = g_advancedSettings.m_audioExcludeFromListingRegExps;
  if (iWindow == WINDOW_PICTURES)
    regexps = g_advancedSettings.m_pictureExcludeFromListingRegExps;

  if (regexps.size())
  {
    for (int i=0; i < items.Size();)
    {
      if (CUtil::ExcludeFileOrFolder(items[i]->GetPath(), regexps))
        items.Remove(i);
      else
        i++;
    }
  }

  // clear the filter
  SetProperty("filter", "");
  return true;
}

bool CRSSDirectory::GetDirectory(const CURL& url, CFileItemList &items)
{
  const std::string pathToUrl(url.Get());
  std::string strPath(pathToUrl);
  URIUtils::RemoveSlashAtEnd(strPath);
  std::map<std::string,CDateTime>::iterator it;
  items.SetPath(strPath);
  CSingleLock lock(m_section);
  if ((it=m_cache.find(strPath)) != m_cache.end())
  {
    if (it->second > CDateTime::GetCurrentDateTime() && 
        items.Load())
      return true;
    m_cache.erase(it);
  }
  lock.Leave();

  CXBMCTinyXML xmlDoc;
  if (!xmlDoc.LoadFile(strPath))
  {
    CLog::Log(LOGERROR,"failed to load xml from <%s>. error: <%d>", strPath.c_str(), xmlDoc.ErrorId());
    return false;
  }
  if (xmlDoc.Error())
  {
    CLog::Log(LOGERROR,"error parsing xml doc from <%s>. error: <%d>", strPath.c_str(), xmlDoc.ErrorId());
    return false;
  }

  TiXmlElement* rssXmlNode = xmlDoc.RootElement();

  if (!rssXmlNode)
    return false;

  TiXmlHandle docHandle( &xmlDoc );
  TiXmlElement* channelXmlNode = docHandle.FirstChild( "rss" ).FirstChild( "channel" ).Element();
  if (channelXmlNode)
    ParseItem(&items, channelXmlNode, pathToUrl);
  else
    return false;

  TiXmlElement* child = NULL;
  for (child = channelXmlNode->FirstChildElement("item"); child; child = child->NextSiblingElement())
  {
    // Create new item,
    CFileItemPtr item(new CFileItem());
    ParseItem(item.get(), child, pathToUrl);

    item->SetProperty("isrss", "1");
    // Use channel image if item doesn't have one
    if (!item->HasArt("thumb") && items.HasArt("thumb"))
      item->SetArt("thumb", items.GetArt("thumb"));

    if (!item->GetPath().empty())
      items.Add(item);
  }

  items.AddSortMethod(SortByNone   , 231, LABEL_MASKS("%L", "%D", "%L", ""));    // FileName, Duration | Foldername, empty
  items.AddSortMethod(SortByLabel  , 551, LABEL_MASKS("%L", "%D", "%L", ""));    // FileName, Duration | Foldername, empty
  items.AddSortMethod(SortBySize   , 553, LABEL_MASKS("%L", "%I", "%L", "%I"));  // FileName, Size | Foldername, Size
  items.AddSortMethod(SortByDate   , 552, LABEL_MASKS("%L", "%J", "%L", "%J"));  // FileName, Date | Foldername, Date

  CDateTime time = CDateTime::GetCurrentDateTime();
  int mins = 60;
  TiXmlElement* ttl = docHandle.FirstChild("rss").FirstChild("ttl").Element();
  if (ttl)
    mins = strtol(ttl->FirstChild()->Value(),NULL,10);
  time += CDateTimeSpan(0,0,mins,0);
  items.SetPath(strPath);
  items.Save();
  CSingleLock lock2(m_section);
  m_cache.insert(make_pair(strPath,time));

  return true;
}

/*!
  \brief Overwrite to fill fileitems from a source
  \param strDirectory Path to read
  \param items Fill with items specified in \e strDirectory
  */
bool CGUIMediaWindow::GetDirectory(const CStdString &strDirectory, CFileItemList &items)
{
  // cleanup items
  if (items.Size())
    items.Clear();

  CStdString strParentPath=m_history.GetParentPath();

  CLog::Log(LOGDEBUG,"CGUIMediaWindow::GetDirectory (%s)", strDirectory.c_str());
  CLog::Log(LOGDEBUG,"  ParentPath = [%s]", strParentPath.c_str());

  // see if we can load a previously cached folder
  CFileItemList cachedItems(strDirectory);
  if (!strDirectory.IsEmpty() && cachedItems.Load())
  {
    items.Assign(cachedItems);
  }
  else
  {
    DWORD time = timeGetTime();

    if (!m_rootDir.GetDirectory(strDirectory, items))
      return false;

    // took over a second, and not normally cached, so cache it
    if (time + 1000 < timeGetTime() && items.CacheToDiscIfSlow())
      items.Save();

    // if these items should replace the current listing, then pop it off the top
    if (items.GetReplaceListing())
      m_history.RemoveParentPath();
  }

  if (m_guiState.get() && !m_guiState->HideParentDirItems() && !items.m_strPath.IsEmpty())
  {
    CFileItemPtr pItem(new CFileItem(".."));
    pItem->m_strPath = strParentPath;
    pItem->m_bIsFolder = true;
    pItem->m_bIsShareOrDrive = false;
    items.AddFront(pItem, 0);
  }

  int iWindow = GetID();
  CStdStringArray regexps;

  if (iWindow == WINDOW_VIDEO_FILES)
    regexps = g_advancedSettings.m_videoExcludeFromListingRegExps;
  if (iWindow == WINDOW_MUSIC_FILES)
    regexps = g_advancedSettings.m_audioExcludeFromListingRegExps;
  if (iWindow == WINDOW_PICTURES)
    regexps = g_advancedSettings.m_pictureExcludeFromListingRegExps;

  if (regexps.size())
  {
    for (int i=0; i < items.Size();)
    {
      if (CUtil::ExcludeFileOrFolder(items[i]->m_strPath, regexps))
        items.Remove(i);
      else
        i++;
    }
  }

  // clear window properties at root or plugin root
  if (items.IsVirtualDirectoryRoot() || items.IsPluginRoot())
    ClearProperties();

  return true;
}