C++ CFileItemList::AddFront方法代码示例

void CGUIWindowPVRCommon::ShowBusyItem(void)
{
  // FIXME: display a temporary entry so that the list can keep its focus
  // busy_items has to be static, because m_viewControl holds the pointer to it
  static CFileItemList busy_items;
  if (busy_items.IsEmpty())
  {
    CFileItemPtr pItem(new CFileItem(g_localizeStrings.Get(1040)));
    busy_items.AddFront(pItem, 0);
  }
  m_parent->m_viewControl.SetItems(busy_items);
}

bool CGUIWindowAddonBrowser::GetDirectory(const CStdString& strDirectory,
                                          CFileItemList& items)
{
  bool result;
  if (strDirectory.Equals("addons://downloading/"))
  {
    VECADDONS addons;
    CAddonInstaller::Get().GetInstallList(addons);

    CURL url(strDirectory);
    CAddonsDirectory::GenerateListing(url,addons,items);
    result = true;
    items.SetProperty("reponame",g_localizeStrings.Get(24067));
    items.SetPath(strDirectory);

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

  }
  else
    result = CGUIMediaWindow::GetDirectory(strDirectory,items);

  if (strDirectory.IsEmpty() && CAddonInstaller::Get().IsDownloading())
  {
    CFileItemPtr item(new CFileItem("addons://downloading/",true));
    item->SetLabel(g_localizeStrings.Get(24067));
    item->SetLabelPreformated(true);
    item->SetIconImage("DefaultNetwork.png");
    items.Add(item);
  }

  items.SetContent("addons");

  for (int i=0;i<items.Size();++i)
    SetItemLabel2(items[i]);

  return result;
}

// \brief This function will be called by Update() after the
// labels of the fileitems are formatted. Override this function
// to modify the fileitems. Eg. to modify the item label
void CGUIMediaWindow::OnFinalizeFileItems(CFileItemList &items)
{
  m_unfilteredItems->Append(items);
  
  CStdString filter(GetProperty("filter"));
  if (!filter.IsEmpty())
  {
    items.ClearItems();
    GetFilteredItems(filter, items);
  }

  // The idea here is to ensure we have something to focus if our file list
  // is empty.  As such, this check MUST be last and ignore the hide parent
  // fileitems settings.
  if (items.IsEmpty())
  {
    CFileItemPtr pItem(new CFileItem(".."));
    pItem->m_strPath=m_history.GetParentPath();
    pItem->m_bIsFolder = true;
    pItem->m_bIsShareOrDrive = false;
    items.AddFront(pItem, 0);
  }
}

/*!
  \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;
}

//  Add an "* All ..." folder to the CFileItemList
//  depending on the child node
void CDirectoryNode::AddQueuingFolder(CFileItemList& items) const
{
  CFileItemPtr pItem;

  CMusicDbUrl musicUrl;
  if (!musicUrl.FromString(BuildPath()))
    return;

  // always hide "all" items
  if (g_advancedSettings.m_bMusicLibraryHideAllItems)
    return;

  // no need for "all" item when only one item
  if (items.GetObjectCount() <= 1)
    return;

  switch (GetChildType())
  {
    //  Have no queuing folder
  case NODE_TYPE_ROOT:
  case NODE_TYPE_OVERVIEW:
  case NODE_TYPE_TOP100:
    break;

  /* no need for all genres
  case NODE_TYPE_GENRE:
    pItem.reset(new CFileItem(g_localizeStrings.Get(15105)));  // "All Genres"
    musicUrl.AppendPath("-1/");
    pItem->SetPath(musicUrl.ToString());
    break;
  */

  case NODE_TYPE_ARTIST:
    if (GetType() == NODE_TYPE_OVERVIEW) return;
    pItem.reset(new CFileItem(g_localizeStrings.Get(15103)));  // "All Artists"
    musicUrl.AppendPath("-1/");
    pItem->SetPath(musicUrl.ToString());
    break;

    //  All album related nodes
  case NODE_TYPE_ALBUM:
    if (GetType() == NODE_TYPE_OVERVIEW) return;
  case NODE_TYPE_ALBUM_RECENTLY_PLAYED:
  case NODE_TYPE_ALBUM_RECENTLY_ADDED:
  case NODE_TYPE_ALBUM_COMPILATIONS:
  case NODE_TYPE_ALBUM_TOP100:
  case NODE_TYPE_YEAR_ALBUM:
    pItem.reset(new CFileItem(g_localizeStrings.Get(15102)));  // "All Albums"
    musicUrl.AppendPath("-1/");
    pItem->SetPath(musicUrl.ToString());
    break;

    //  All song related nodes
/*  case NODE_TYPE_ALBUM_RECENTLY_PLAYED_SONGS:
  case NODE_TYPE_ALBUM_RECENTLY_ADDED_SONGS:
  case NODE_TYPE_ALBUM_COMPILATIONS_SONGS:
  case NODE_TYPE_ALBUM_TOP100_SONGS:
  case NODE_TYPE_SONG_TOP100:
  case NODE_TYPE_SONG:
    pItem = new CFileItem(g_localizeStrings.Get(15104));  // "All Songs"
    musicUrl.AppendPath("-1/");
    pItem->SetPath(musicUrl.ToString());
    break;*/
  default:
    break;
  }

  if (pItem)
  {
    pItem->m_bIsFolder = true;
    pItem->SetSpecialSort(g_advancedSettings.m_bMusicLibraryAllItemsOnBottom ? SortSpecialOnBottom : SortSpecialOnTop);
    pItem->SetCanQueue(false);
    pItem->SetLabelPreformated(true);
    if (g_advancedSettings.m_bMusicLibraryAllItemsOnBottom)
      items.Add(pItem);
    else
      items.AddFront(pItem, (items.Size() > 0 && items[0]->IsParentFolder()) ? 1 : 0);
  }
}

/*!
  \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;
}

bool CGUIWindowAddonBrowser::GetDirectory(const std::string& strDirectory,
                                          CFileItemList& items)
{
  bool result;
  if (URIUtils::PathEquals(strDirectory, "addons://downloading/"))
  {
    VECADDONS addons;
    CAddonInstaller::Get().GetInstallList(addons);

    CURL url(strDirectory);
    CAddonsDirectory::GenerateAddonListing(url, addons, items, g_localizeStrings.Get(24067));
    result = true;
    items.SetPath(strDirectory);

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

  }
  else
  {
    result = CGUIMediaWindow::GetDirectory(strDirectory, items);

    if (CAddonsDirectory::IsRepoDirectory(CURL(strDirectory)))
    {
      if (CSettings::Get().GetBool("general.addonforeignfilter"))
      {
        int i=0;
        while (i < items.Size())
        {
          if (!FilterVar(true, items[i]->GetProperty("Addon.Language"), "en") ||
              !FilterVar(true, items[i]->GetProperty("Addon.Language"), g_langInfo.GetLocale().GetLanguageCode()) ||
              !FilterVar(true, items[i]->GetProperty("Addon.Language"), g_langInfo.GetLocale().ToShortString()))
          {
            i++;
          }
          else
            items.Remove(i);
        }
      }
      if (CSettings::Get().GetBool("general.addonbrokenfilter"))
      {
        for (int i = items.Size() - 1; i >= 0; i--)
        {
          if (!items[i]->GetProperty("Addon.Broken").empty())
          { //check if it's installed
            AddonPtr addon;
            if (!CAddonMgr::Get().GetAddon(items[i]->GetProperty("Addon.ID").asString(), addon))
              items.Remove(i);
          }
        }
      }
    }
  }

  if (strDirectory.empty() && CAddonInstaller::Get().IsDownloading())
  {
    CFileItemPtr item(new CFileItem("addons://downloading/",true));
    item->SetLabel(g_localizeStrings.Get(24067));
    item->SetLabelPreformated(true);
    item->SetIconImage("DefaultNetwork.png");
    items.Add(item);
  }

  items.SetContent("addons");

  for (int i=0;i<items.Size();++i)
    SetItemLabel2(items[i]);

  return result;
}

bool CGUIWindowAddonBrowser::GetDirectory(const std::string& strDirectory, CFileItemList& items)
{
  bool result;
  if (URIUtils::PathEquals(strDirectory, "addons://downloading/"))
  {
    VECADDONS addons;
    CAddonInstaller::GetInstance().GetInstallList(addons);

    CURL url(strDirectory);
    CAddonsDirectory::GenerateAddonListing(url, addons, items, g_localizeStrings.Get(24067));
    result = true;
    items.SetPath(strDirectory);

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

  }
  else
  {
    result = CGUIMediaWindow::GetDirectory(strDirectory, items);

    if (result && CAddonsDirectory::IsRepoDirectory(CURL(strDirectory)))
    {
      if (CSettings::GetInstance().GetBool(CSettings::SETTING_GENERAL_ADDONFOREIGNFILTER))
      {
        int i = 0;
        while (i < items.Size())
        {
          auto prop = items[i]->GetProperty("Addon.Language");
          if (!prop.isNull() && IsForeign(prop.asString()))
            items.Remove(i);
          else
            ++i;
        }
      }
      if (CSettings::GetInstance().GetBool(CSettings::SETTING_GENERAL_ADDONBROKENFILTER))
      {
        for (int i = items.Size() - 1; i >= 0; i--)
        {
          if (!items[i]->GetProperty("Addon.Broken").empty())
          {
            //check if it's installed
            AddonPtr addon;
            if (!CAddonMgr::GetInstance().GetAddon(items[i]->GetProperty("Addon.ID").asString(), addon))
              items.Remove(i);
          }
        }
      }
    }
  }

  if (strDirectory.empty() && CAddonInstaller::GetInstance().IsDownloading())
  {
    CFileItemPtr item(new CFileItem("addons://downloading/", true));
    item->SetLabel(g_localizeStrings.Get(24067));
    item->SetLabelPreformated(true);
    item->SetIconImage("DefaultNetwork.png");
    items.Add(item);
  }

  for (int i = 0; i < items.Size(); ++i)
    SetItemLabel2(items[i]);

  return result;
}

void CGUIDialogFileBrowser::Update(const std::string &strDirectory)
{
  const CURL pathToUrl(strDirectory);

  if (m_browsingForImages && m_thumbLoader.IsLoading())
    m_thumbLoader.StopThread();
  // get selected item
  int iItem = m_viewControl.GetSelectedItem();
  std::string strSelectedItem;
  if (iItem >= 0 && iItem < m_vecItems->Size())
  {
    CFileItemPtr pItem = (*m_vecItems)[iItem];
    if (!pItem->IsParentFolder())
    {
      strSelectedItem = pItem->GetPath();
      URIUtils::RemoveSlashAtEnd(strSelectedItem);
      m_history.SetSelectedItem(strSelectedItem, m_Directory->GetPath().empty()?"empty":m_Directory->GetPath());
    }
  }

  if (!m_singleList)
  {
    CFileItemList items;
    std::string strParentPath;

    if (!m_rootDir.GetDirectory(pathToUrl, items, m_useFileDirectories, false))
    {
      CLog::Log(LOGERROR,"CGUIDialogFileBrowser::GetDirectory(%s) failed", pathToUrl.GetRedacted().c_str());

      // We assume, we can get the parent
      // directory again
      std::string strParentPath = m_history.GetParentPath();
      m_history.RemoveParentPath();
      Update(strParentPath);
      return;
    }

    // check if current directory is a root share
    if (!m_rootDir.IsSource(strDirectory))
    {
      if (URIUtils::GetParentPath(strDirectory, strParentPath))
      {
        CFileItemPtr pItem(new CFileItem(".."));
        pItem->SetPath(strParentPath);
        pItem->m_bIsFolder = true;
        pItem->m_bIsShareOrDrive = false;
        items.AddFront(pItem, 0);
      }
    }
    else
    {
      // yes, this is the root of a share
      // add parent path to the virtual directory
      CFileItemPtr pItem(new CFileItem(".."));
      pItem->SetPath("");
      pItem->m_bIsShareOrDrive = false;
      pItem->m_bIsFolder = true;
      items.AddFront(pItem, 0);
      strParentPath = "";
    }

    ClearFileItems();
    m_vecItems->Copy(items);
    m_Directory->SetPath(strDirectory);
    m_strParentPath = strParentPath;
  }

  // if we're getting the root source listing
  // make sure the path history is clean
  if (strDirectory.empty())
    m_history.ClearPathHistory();

  // some evil stuff don't work with the '/' mask, e.g. shoutcast directory - make sure no files are in there
  if (m_browsingForFolders)
  {
    for (int i=0;i<m_vecItems->Size();++i)
      if (!(*m_vecItems)[i]->m_bIsFolder)
      {
        m_vecItems->Remove(i);
        i--;
      }
  }

  // No need to set thumbs

  m_vecItems->FillInDefaultIcons();

  OnSort();

  if (m_Directory->GetPath().empty() && m_addNetworkShareEnabled &&
     (CServiceBroker::GetSettingsComponent()->GetProfileManager()->GetMasterProfile().getLockMode() == LOCK_MODE_EVERYONE ||
      CServiceBroker::GetSettingsComponent()->GetProfileManager()->IsMasterProfile() || g_passwordManager.bMasterUser))
  { // we are in the virtual directory - add the "Add Network Location" item
    CFileItemPtr pItem(new CFileItem(g_localizeStrings.Get(1032)));
    pItem->SetPath("net://");
    pItem->m_bIsFolder = true;
    m_vecItems->Add(pItem);
  }
  if (m_Directory->GetPath().empty() && !m_addSourceType.empty())
  {
//.........这里部分代码省略.........