C++ CGUIDialogBusy::IsCanceled方法代码示例

bool CGUIDialogBusy::WaitOnEvent(CEvent &event, unsigned int displaytime /* = 100 */, bool allowCancel /* = true */)
{
  bool cancelled = false;
  if (!event.WaitMSec(displaytime))
  {
    // throw up the progress
    CGUIDialogBusy* dialog = g_windowManager.GetWindow<CGUIDialogBusy>(WINDOW_DIALOG_BUSY);
    if (dialog)
    {
      dialog->Open();

      while(!event.WaitMSec(1))
      {
        dialog->ProcessRenderLoop(false);
        if (allowCancel && dialog->IsCanceled())
        {
          cancelled = true;
          break;
        }
      }
      
      dialog->Close();
    }
  }
  return !cancelled;
}

bool CDirectory::GetDirectory(const CURL& url, CFileItemList &items, const CHints &hints, bool allowThreads)
{
  try
  {
    CURL realURL = URIUtils::SubstitutePath(url);
    std::shared_ptr<IDirectory> pDirectory(CDirectoryFactory::Create(realURL));
    if (!pDirectory.get())
      return false;

    // check our cache for this path
    if (g_directoryCache.GetDirectory(realURL.Get(), items, (hints.flags & DIR_FLAG_READ_CACHE) == DIR_FLAG_READ_CACHE))
      items.SetURL(url);
    else
    {
      // need to clear the cache (in case the directory fetch fails)
      // and (re)fetch the folder
      if (!(hints.flags & DIR_FLAG_BYPASS_CACHE))
        g_directoryCache.ClearDirectory(realURL.Get());

      pDirectory->SetFlags(hints.flags);

      bool result = false, cancel = false;
      while (!result && !cancel)
      {
        const std::string pathToUrl(url.Get());
        if (g_application.IsCurrentThread() && allowThreads && !URIUtils::IsSpecial(pathToUrl))
        {
          CSingleExit ex(g_graphicsContext);

          CGetDirectory get(pDirectory, realURL, url);
          if(!get.Wait(TIME_TO_BUSY_DIALOG))
          {
            CGUIDialogBusy* dialog = (CGUIDialogBusy*)g_windowManager.GetWindow(WINDOW_DIALOG_BUSY);
            if (dialog)
            {
              dialog->Open();

              while(!get.Wait(10))
              {
                CSingleLock lock(g_graphicsContext);

                // update progress
                float progress = pDirectory->GetProgress();
                if (progress > 0)
                  dialog->SetProgress(progress);

                if (dialog->IsCanceled())
                {
                  cancel = true;
                  pDirectory->CancelDirectory();
                  break;
                }

                lock.Leave(); // prevent an occasional deadlock on exit
                g_windowManager.ProcessRenderLoop(false);
              }

              dialog->Close();
            }
          }
          result = get.GetDirectory(items);
        }
        else
        {
          items.SetURL(url);
          result = pDirectory->GetDirectory(realURL, items);
        }

        if (!result)
        {
          if (!cancel && g_application.IsCurrentThread() && pDirectory->ProcessRequirements())
            continue;
          CLog::Log(LOGERROR, "%s - Error getting %s", __FUNCTION__, url.GetRedacted().c_str());
          return false;
        }
      }

      // cache the directory, if necessary
      if (!(hints.flags & DIR_FLAG_BYPASS_CACHE))
        g_directoryCache.SetDirectory(realURL.Get(), items, pDirectory->GetCacheType(url));
    }

    // now filter for allowed files
    if (!pDirectory->AllowAll())
    {
      pDirectory->SetMask(hints.mask);
      for (int i = 0; i < items.Size(); ++i)
      {
        CFileItemPtr item = items[i];
        if (!item->m_bIsFolder && !pDirectory->IsAllowed(item->GetURL()))
        {
          items.Remove(i);
          i--; // don't confuse loop
        }
      }
    }
    // filter hidden files
    // TODO: we shouldn't be checking the gui setting here, callers should use getHidden instead
    if (!CSettings::Get().GetBool("filelists.showhidden") && !(hints.flags & DIR_FLAG_GET_HIDDEN))
    {
//.........这里部分代码省略.........

bool CDirectory::GetDirectory(const CStdString& strPath, CFileItemList &items, CStdString strMask /*=""*/, bool bUseFileDirectories /* = true */, bool allowPrompting /* = false */, DIR_CACHE_TYPE cacheDirectory /* = DIR_CACHE_ONCE */, bool extFileInfo /* = true */, bool allowThreads /* = false */, bool getHidden /* = false */)
{
  try
  {
    CStdString realPath = URIUtils::SubstitutePath(strPath);
    boost::shared_ptr<IDirectory> pDirectory(CFactoryDirectory::Create(realPath));
    if (!pDirectory.get())
      return false;

    // check our cache for this path
    if (g_directoryCache.GetDirectory(strPath, items, cacheDirectory == DIR_CACHE_ALWAYS))
      items.SetPath(strPath);
    else
    {
      // need to clear the cache (in case the directory fetch fails)
      // and (re)fetch the folder
      if (cacheDirectory != DIR_CACHE_NEVER)
        g_directoryCache.ClearDirectory(strPath);

      pDirectory->SetAllowPrompting(allowPrompting);
      pDirectory->SetCacheDirectory(cacheDirectory);
      pDirectory->SetUseFileDirectories(bUseFileDirectories);
      pDirectory->SetExtFileInfo(extFileInfo);

      bool result = false, cancel = false;
      while (!result && !cancel)
      {
        if (g_application.IsCurrentThread() && allowThreads && !URIUtils::IsSpecial(strPath))
        {
          CSingleExit ex(g_graphicsContext);

          CGetDirectory get(pDirectory, realPath);
          if(!get.Wait(TIME_TO_BUSY_DIALOG))
          {
            CGUIDialogBusy* dialog = (CGUIDialogBusy*)g_windowManager.GetWindow(WINDOW_DIALOG_BUSY);
            dialog->Show();

            while(!get.Wait(10))
            {
              CSingleLock lock(g_graphicsContext);

              if(dialog->IsCanceled())
              {
                cancel = true;
                break;
              }
              g_windowManager.ProcessRenderLoop(false);
            }
            if(dialog)
              dialog->Close();
          }
          result = get.GetDirectory(items);
        }
        else
        {
          items.SetPath(strPath);
          result = pDirectory->GetDirectory(realPath, items);
        }

        if (!result)
        {
          if (!cancel && g_application.IsCurrentThread() && pDirectory->ProcessRequirements())
            continue;
          CLog::Log(LOGERROR, "%s - Error getting %s", __FUNCTION__, strPath.c_str());
          return false;
        }
      }

      // cache the directory, if necessary
      if (cacheDirectory != DIR_CACHE_NEVER)
        g_directoryCache.SetDirectory(strPath, items, pDirectory->GetCacheType(strPath));
    }

    // now filter for allowed files
    pDirectory->SetMask(strMask);
    for (int i = 0; i < items.Size(); ++i)
    {
      CFileItemPtr item = items[i];
      // TODO: we shouldn't be checking the gui setting here;
      // callers should use getHidden instead
      if ((!item->m_bIsFolder && !pDirectory->IsAllowed(item->GetPath())) ||
          (item->GetPropertyBOOL("file:hidden") && !getHidden && !g_guiSettings.GetBool("filelists.showhidden")))
      {
        items.Remove(i);
        i--; // don't confuse loop
      }
    }

    //  Should any of the files we read be treated as a directory?
    //  Disable for database folders, as they already contain the extracted items
    if (bUseFileDirectories && !items.IsMusicDb() && !items.IsVideoDb() && !items.IsSmartPlayList())
      FilterFileDirectories(items, strMask);

    return true;
  }
#ifndef _LINUX
  catch (const win32_exception &e)
  {
    e.writelog(__FUNCTION__);
  }
//.........这里部分代码省略.........