protected override async Task <List <string> > GetFileNamesAsync()
{
// Query to retreive colorings ordered by date modified.
QueryOptions queryOptions = new QueryOptions(CommonFolderQuery.DefaultQuery);
queryOptions.SortOrder.Clear();
SortEntry se = new SortEntry
{
PropertyName = "System.DateModified",
AscendingOrder = false
};
queryOptions.SortOrder.Add(se);
var assetsDir = await Tools.GetAssetsFolderAsync();
var libraryImagesDir = await Tools.GetSubDirectoryAsync(assetsDir, "LibraryImages");
StorageFolderQueryResult queryResult = libraryImagesDir.CreateFolderQueryWithOptions(queryOptions);
var libraryImages = await queryResult.GetFoldersAsync();
return(libraryImages.Select(image => image.Name).ToList());
}
/// <summary>
/// helper for all list by functions
/// </summary>
private async Task GroupByHelperAsync(QueryOptions queryOptions)
{
GroupedFiles.Clear();
StorageFolder picturesFolder = await KnownFolders.GetFolderForUserAsync(null /* current user */, KnownFolderId.PicturesLibrary);
StorageFolderQueryResult queryResult = picturesFolder.CreateFolderQueryWithOptions(queryOptions);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
var newList = new List <string>();
newList.Add("Group: " + folder.Name + " (" + fileList.Count + ")");
GroupedFiles.Add(newList);
foreach (StorageFile file in fileList)
{
newList.Add(file.Name);
}
}
}
// 分组文件夹
private async void btnFolderGroup_Click(object sender, RoutedEventArgs e)
{
lblMsg.Text = "";
StorageFolder picturesFolder = await KnownFolders.GetFolderForUserAsync(null, KnownFolderId.PicturesLibrary);
// 文件夹按月分组查询参数，其他多种分组方式请参见 CommonFolderQuery 枚举
CommonFolderQuery folderQuery = CommonFolderQuery.GroupByMonth;
// 判断一下 picturesFolder 是否支持指定的查询参数
if (picturesFolder.IsCommonFolderQuerySupported(folderQuery))
{
// 创建查询
StorageFolderQueryResult queryResult = picturesFolder.CreateFolderQuery(folderQuery);
// 执行查询
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
foreach (StorageFolder storageFolder in folderList) // 这里的 storageFolder 就是按月份分组后的月份文件夹（当然，物理上并没有月份文件夹）
{
IReadOnlyList <StorageFile> fileList = await storageFolder.GetFilesAsync();
lblMsg.Text += storageFolder.Name + " (" + fileList.Count + ")";
lblMsg.Text += Environment.NewLine;
foreach (StorageFile file in fileList) // 月份文件夹内的文件
{
lblMsg.Text += " " + file.Name;
lblMsg.Text += Environment.NewLine;
}
}
}
}
public async Task <String> carpeta()
{
StorageFolder picturesFolder = KnownFolders.PicturesLibrary;
StorageFolderQueryResult queryResult =
picturesFolder.CreateFolderQuery(CommonFolderQuery.GroupByMonth);
IReadOnlyList <StorageFolder> folderList =
await queryResult.GetFoldersAsync();
StringBuilder outputText = new StringBuilder();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
// Print the month and number of files in this group.
outputText.AppendLine(folder.Name + " (" + fileList.Count + ")");
foreach (StorageFile file in fileList)
{
// Print the name of the file.
outputText.AppendLine(" " + file.Name);
}
}
return(Convert.ToString(outputText));
}
public async void playMedia(string mediaType, string videoName)
{
mediaPlayerElement.Source = null;
StorageFolder chosenFolder = null;
if (mediaType == "video")
{
chosenFolder = KnownFolders.VideosLibrary;
}
else if (mediaType == "music")
{
chosenFolder = KnownFolders.MusicLibrary;
}
StorageFolderQueryResult queryResult = chosenFolder.CreateFolderQuery(Windows.Storage.Search.CommonFolderQuery.GroupByMonth);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
foreach (StorageFile file in fileList)
{
if (file.Name.StartsWith(videoName))
{
this.mediaPlayerElement.MediaPlayer.Source = MediaSource.CreateFromStorageFile(file);
this.mediaPlayerElement.MediaPlayer.Play();
}
}
}
}
private async void Button_Click3(object sender, RoutedEventArgs e)
{
StorageFolder picturesFolder = KnownFolders.PicturesLibrary;
StorageFolderQueryResult queryResult = picturesFolder.CreateFolderQuery(CommonFolderQuery.GroupByMonth);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
StringBuilder outputText = new StringBuilder();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
// Print the month and number of files in this group.
outputText.AppendLine(folder.Name + " (" + fileList.Count + ")");
foreach (StorageFile file in fileList)
{
// Print the name of the file.
outputText.AppendLine(" " + file.Name);
}
}
MyText.Text = outputText.ToString() + "\nPath:==" + picturesFolder.Path;
}
private async static Task <IReadOnlyList <IStorageItem> > EnumerateFileQuery(string path, string searchPattern, SearchOption searchOption, SearchTarget searchTarget)
{
// Get a StorageFolder for "path"
string fullPath = Path.GetFullPath(path);
StorageFolder folder = await StorageFolder.GetFolderFromPathAsync(fullPath).TranslateWinRTTask(fullPath, isDirectory: true);
// Construct a query for the search.
QueryOptions query = new QueryOptions();
// Translate SearchOption into FolderDepth
query.FolderDepth = searchOption == SearchOption.AllDirectories ? FolderDepth.Deep : FolderDepth.Shallow;
// Construct an AQS filter
string normalizedSearchPattern = PathHelpers.NormalizeSearchPattern(searchPattern);
if (normalizedSearchPattern.Length == 0)
{
// An empty searchPattern will return no results and requires no AQS parsing.
return(new IStorageItem[0]);
}
else
{
// Parse the query as an ItemPathDisplay filter.
string searchPath = PathHelpers.GetFullSearchString(fullPath, normalizedSearchPattern);
string aqs = "System.ItemPathDisplay:~\"" + searchPath + "\"";
query.ApplicationSearchFilter = aqs;
// If the filtered path is deeper than the given user path, we need to get a new folder for it.
// This occurs when someone does something like Enumerate("C:\first\second\", "C:\first\second\third\*").
// When AllDirectories is set this isn't an issue, but for TopDirectoryOnly we have to do some special work
// to make sure something is actually returned when the searchPattern is a subdirectory of the path.
// To do this, we attempt to get a new StorageFolder for the subdirectory and return an empty enumerable
// if we can't.
string searchPatternDirName = Path.GetDirectoryName(normalizedSearchPattern);
string userPath = string.IsNullOrEmpty(searchPatternDirName) ? fullPath : Path.Combine(fullPath, searchPatternDirName);
if (userPath != folder.Path)
{
folder = await StorageFolder.GetFolderFromPathAsync(userPath).TranslateWinRTTask(userPath, isDirectory: true);
}
}
// Execute our built query
if (searchTarget == SearchTarget.Files)
{
StorageFileQueryResult queryResult = folder.CreateFileQueryWithOptions(query);
return(await queryResult.GetFilesAsync().TranslateWinRTTask(folder.Path, isDirectory: true));
}
else if (searchTarget == SearchTarget.Directories)
{
StorageFolderQueryResult queryResult = folder.CreateFolderQueryWithOptions(query);
return(await queryResult.GetFoldersAsync().TranslateWinRTTask(folder.Path, isDirectory: true));
}
else
{
StorageItemQueryResult queryResult = folder.CreateItemQueryWithOptions(query);
return(await queryResult.GetItemsAsync().TranslateWinRTTask(folder.Path, isDirectory: true));
}
}
public async static Task <IList <StorageFolderWithPath> > GetFoldersWithPathAsync(this StorageFolderWithPath parentFolder, string nameFilter, uint maxNumberOfItems = uint.MaxValue)
{
var queryOptions = new QueryOptions();
queryOptions.ApplicationSearchFilter = $"System.FileName:{nameFilter}*";
StorageFolderQueryResult queryResult = parentFolder.Folder.CreateFolderQueryWithOptions(queryOptions);
return((await queryResult.GetFoldersAsync(0, maxNumberOfItems)).Select(x => new StorageFolderWithPath(x, Path.Combine(parentFolder.Path, x.Name))).ToList());
}
public async Task updatePhraseLists(string mediaType)
{
try
{
// Update the video phrase list, so that Cortana voice commands can use videos found in system.
//Adapted from Miscrosoft docs: https://docs.microsoft.com/en-us/cortana/voicecommands/dynamically-modify-voice-command-definition-vcd-phrase-lists
VoiceCommandDefinition commandDefinitions;
StorageFolder videoFolder = null;
switch (mediaType)
{
case "video":
videoFolder = KnownFolders.VideosLibrary;
break;
case "music":
videoFolder = KnownFolders.MusicLibrary;
break;
}
if (VoiceCommandDefinitionManager.InstalledCommandDefinitions.TryGetValue("ProjectCommandSet_en-us", out commandDefinitions))
{
StorageFolderQueryResult queryResult = videoFolder.CreateFolderQuery(Windows.Storage.Search.CommonFolderQuery.GroupByMonth);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
List <string> namesList = new List <string>();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
foreach (StorageFile file in fileList)
{
namesList.Add(Path.GetFileNameWithoutExtension(file.Name));
}
}
//add video names to phraselist
await commandDefinitions.SetPhraseListAsync(mediaType, namesList);
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("Error updating Phrase list for VCDs: " + ex.ToString());
}
}
private async void ApplyFilter(object sender, RoutedEventArgs e)
{
if (canAddFilter == false)
{
return;
}
StorageFolder assetsFolder = await Windows.ApplicationModel.Package.Current.InstalledLocation.GetFolderAsync("Assets");
StorageFolderQueryResult results = assetsFolder.CreateFolderQuery();
IReadOnlyList <StorageFolder> folders = await results.GetFoldersAsync();
StorageFolder filterFolder = folders.Where(fol => fol.DisplayName == "Filters").First();
filters = await filterFolder.GetFilesAsync();
/*Debug.WriteLine("Displaying Folder");
* Debug.WriteLine(filterFolder.DisplayName);
*
* Debug.WriteLine("Displaying filter names");
*
* foreach (StorageFile fil in filters)
* {
* Debug.WriteLine(fil.DisplayName);
* }*/
Image filter = new Image();
filter.VerticalAlignment = VerticalAlignment.Center;
filter.HorizontalAlignment = HorizontalAlignment.Center;
BitmapImage bm = new BitmapImage(new Uri(filters[0].Path));
filter.Source = bm;
Canvas.SetZIndex(filter, 1);
this.renderTarget.Children.Add(filter);
currentFilter = filter;
filterCount++;
canAddFilter = (filterCount == 5) ? !canAddFilter : canAddFilter;
if (canAddFilter == false)
{
Debug.WriteLine("Cannot apply filter");
}
}
private async Task LoadFoldersAsync(CancellationToken cancellationToken)
{
uint si = 0;
IReadOnlyList <StorageFolder> folders;
do
{
if (cancellationToken.IsCancellationRequested)
{
return;
}
folders = await folderQuery.GetFoldersAsync(si, FILE_RETRIEVE_STEPSIZE);
await AddFoldersAsync(folders, cancellationToken);
si += FILE_RETRIEVE_STEPSIZE;
} while (folders.Count != 0);
}
private async static Task <IReadOnlyList <StorageFolder> > GetWslDriveAsync()
{
try
{
StorageFolder WslBaseFolder = await StorageFolder.GetFolderFromPathAsync(@"\\wsl$");
StorageFolderQueryResult Query = WslBaseFolder.CreateFolderQueryWithOptions(new QueryOptions
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.DoNotUseIndexer
});
return(await Query.GetFoldersAsync());
}
catch
{
return(new List <StorageFolder>(0));
}
}
/// <summary>
/// helper for all list by functions
/// </summary>
async Task GroupByHelperAsync(QueryOptions queryOptions)
{
OutputPanel.Children.Clear();
StorageFolder picturesFolder = KnownFolders.PicturesLibrary;
StorageFolderQueryResult queryResult = picturesFolder.CreateFolderQueryWithOptions(queryOptions);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> fileList = await folder.GetFilesAsync();
OutputPanel.Children.Add(CreateHeaderTextBlock(folder.Name + " (" + fileList.Count + ")"));
foreach (StorageFile file in fileList)
{
OutputPanel.Children.Add(CreateLineItemTextBlock(file.Name));
}
}
}
//按月分组，每个虚拟文件夹都表示一组具有相同月份的文件。
async public void selectfilesbymonth()
{
StorageFolder sf = KnownFolders.PicturesLibrary;
StorageFolderQueryResult queryResult = sf.CreateFolderQuery(CommonFolderQuery.GroupByMonth);
IReadOnlyList <StorageFolder> folderList = await queryResult.GetFoldersAsync();
StringBuilder stringBuilder = new StringBuilder();
foreach (StorageFolder folder in folderList)
{
IReadOnlyList <StorageFile> storageFiles = await folder.GetFilesAsync();
stringBuilder.AppendLine(folder.Name + "(" + storageFiles.Count + ")");
foreach (StorageFile file in storageFiles)
{
stringBuilder.AppendLine(" " + file.Name);
}
}
outputtextblock3.Text = stringBuilder.ToString();
}
private async Task LoadAlbums(StorageFolderQueryResult albumQueryResult, int artistId)
{
IReadOnlyList <StorageFolder> albumFolders = null;
try
{
albumFolders = await albumQueryResult.GetFoldersAsync();
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
if (albumFolders != null)
{
foreach (var item in albumFolders)
{
AlbumItem albumItem = await GetInformationsFromMusicFile.GetAlbumItemFromFolder(item, albumQueryResult, artistId);
await albumItem.GetCover();
// Album is in database, update with cover.
await _albumDataRepository.Update(albumItem);
await DispatchHelper.InvokeAsync(() =>
{
Albums.Add(albumItem);
if (Locator.MusicLibraryVM.RandomAlbums.Count < 12)
{
Locator.MusicLibraryVM.RandomAlbums.Add(albumItem);
}
});
Locator.MusicLibraryVM.AlbumCover.Add(albumItem.Picture);
}
}
}
public async void polulateListBox(string mediaType)
{
StorageFolder chosenFolder = null;
if (mediaType == "videos")
{
chosenFolder = KnownFolders.VideosLibrary;
}
else if (mediaType == "music")
{
chosenFolder = KnownFolders.MusicLibrary;
}
StorageFolderQueryResult queryResult = chosenFolder.CreateFolderQuery(Windows.Storage.Search.CommonFolderQuery.GroupByAlbumArtist);
IReadOnlyList <StorageFolder> tempFolderList = await queryResult.GetFoldersAsync();
//clear fileList before populating
fileList.Clear();
mySpiltView.IsPaneOpen = true;
foreach (StorageFolder folder in tempFolderList)
{
//create tempfileList for reading
IReadOnlyList <StorageFile> tempFileList = await folder.GetFilesAsync();
foreach (StorageFile file in tempFileList)
{
//add to mediaListBox for displaying to user
mediaListBox.Items.Add(Path.GetFileNameWithoutExtension(file.Name));
//add to fileList for playing after selection
fileList.Add(file);
}
}
}
private async void FileContentsChanged(IStorageQueryResultBase sender, object args)
{
if (_filesRefreshing)
{
Debug.WriteLine("Filesystem change event fired but refresh is already running");
return;
}
else
{
Debug.WriteLine("Filesystem change event fired. Refreshing...");
}
_filesRefreshing = true;
//query options have to be reapplied otherwise old results are returned
_fileQueryResult.ApplyNewQueryOptions(_options);
_folderQueryResult.ApplyNewQueryOptions(_options);
var fileCount = await _fileQueryResult.GetItemCountAsync();
var folderCount = await _folderQueryResult.GetItemCountAsync();
var files = await _fileQueryResult.GetFilesAsync();
var folders = await _folderQueryResult.GetFoldersAsync();
var cancellationTokenSourceCopy = _cancellationTokenSource;
// modifying a file also results in a new unique FolderRelativeId so no need to check for DateModified explicitly
var addedFiles = files.Select(f => f.FolderRelativeId).Except(_filesAndFolders.Select(f => f.FolderRelativeId));
var addedFolders = folders.Select(f => f.FolderRelativeId).Except(_filesAndFolders.Select(f => f.FolderRelativeId));
var removedFilesAndFolders = _filesAndFolders
.Select(f => f.FolderRelativeId)
.Except(files.Select(f => f.FolderRelativeId))
.Except(folders.Select(f => f.FolderRelativeId))
.ToArray();
foreach (var file in addedFiles)
{
var toAdd = files.First(f => f.FolderRelativeId == file);
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
async() =>
{
await AddFile(toAdd, _pageName, cancellationTokenSourceCopy.Token);
});
}
foreach (var folder in addedFolders)
{
var toAdd = folders.First(f => f.FolderRelativeId == folder);
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
async() =>
{
await AddFolder(toAdd, _pageName, cancellationTokenSourceCopy.Token);
});
}
foreach (var item in removedFilesAndFolders)
{
var toRemove = _filesAndFolders.First(f => f.FolderRelativeId == item);
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal,
() =>
{
RemoveFileOrFolder(toRemove);
});
}
_filesRefreshing = false;
Debug.WriteLine("Filesystem refresh complete");
}
public async void MemoryFriendlyGetItemsAsync(string path, Page passedPage)
{
TextState.isVisible = Visibility.Collapsed;
tokenSource = new CancellationTokenSource();
CancellationToken token = App.ViewModel.tokenSource.Token;
pageName = passedPage.Name;
Universal.path = path;
// Personalize retrieved items for view they are displayed in
switch (pageName)
{
case "GenericItemView":
isPhotoAlbumMode = false;
break;
case "PhotoAlbumViewer":
isPhotoAlbumMode = true;
break;
case "ClassicModePage":
isPhotoAlbumMode = false;
break;
}
if (pageName != "ClassicModePage")
{
FilesAndFolders.Clear();
}
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
Universal.path = path; // Set visible path to reflect new navigation
try
{
PVIS.isVisible = Visibility.Visible;
TextState.isVisible = Visibility.Collapsed;
switch (Universal.path)
{
case "Desktop":
Universal.path = MainPage.DesktopPath;
break;
case "Downloads":
Universal.path = MainPage.DownloadsPath;
break;
case "Documents":
Universal.path = MainPage.DocumentsPath;
break;
case "Pictures":
Universal.path = MainPage.PicturesPath;
break;
case "Music":
Universal.path = MainPage.MusicPath;
break;
case "Videos":
Universal.path = MainPage.VideosPath;
break;
case "OneDrive":
Universal.path = MainPage.OneDrivePath;
break;
}
folder = await StorageFolder.GetFolderFromPathAsync(Universal.path);
History.AddToHistory(Universal.path);
if (History.HistoryList.Count == 1)
{
BS.isEnabled = false;
}
else if (History.HistoryList.Count > 1)
{
BS.isEnabled = true;
}
QueryOptions options = new QueryOptions()
{
FolderDepth = FolderDepth.Shallow,
IndexerOption = IndexerOption.UseIndexerWhenAvailable
};
string sort = "By_Name";
if (sort == "By_Name")
{
SortEntry entry = new SortEntry()
{
AscendingOrder = true,
PropertyName = "System.FileName"
};
options.SortOrder.Add(entry);
}
uint index = 0;
const uint step = 250;
if (!folder.AreQueryOptionsSupported(options))
{
options.SortOrder.Clear();
}
folderQueryResult = folder.CreateFolderQueryWithOptions(options);
IReadOnlyList <StorageFolder> folders = await folderQueryResult.GetFoldersAsync(index, step);
int foldersCountSnapshot = folders.Count;
while (folders.Count != 0)
{
foreach (StorageFolder folder in folders)
{
if (token.IsCancellationRequested)
{
return;
}
gotFolName = folder.Name.ToString();
gotFolDate = folder.DateCreated.ToString();
gotFolPath = folder.Path.ToString();
gotFolType = "Folder";
gotFolImg = Visibility.Visible;
gotFileImgVis = Visibility.Collapsed;
gotEmptyImgVis = Visibility.Collapsed;
if (pageName == "ClassicModePage")
{
ClassicFolderList.Add(new Classic_ListedFolderItem()
{
FileName = gotFolName, FileDate = gotFolDate, FileExtension = gotFolType, FilePath = gotFolPath
});
}
else
{
FilesAndFolders.Add(new ListedItem()
{
EmptyImgVis = gotEmptyImgVis, ItemIndex = FilesAndFolders.Count, FileImg = null, FileIconVis = gotFileImgVis, FolderImg = gotFolImg, FileName = gotFolName, FileDate = gotFolDate, FileExtension = gotFolType, FilePath = gotFolPath
});
}
}
index += step;
folders = await folderQueryResult.GetFoldersAsync(index, step);
}
index = 0;
fileQueryResult = folder.CreateFileQueryWithOptions(options);
IReadOnlyList <StorageFile> files = await fileQueryResult.GetFilesAsync(index, step);
int filesCountSnapshot = files.Count;
while (files.Count != 0)
{
foreach (StorageFile file in files)
{
if (token.IsCancellationRequested)
{
return;
}
gotName = file.DisplayName.ToString();
gotDate = file.DateCreated.ToString(); // In the future, parse date to human readable format
if (file.FileType.ToString() == ".exe")
{
gotType = "Executable";
}
else
{
gotType = file.DisplayType;
}
gotPath = file.Path.ToString();
gotFolImg = Visibility.Collapsed;
gotDotFileExtension = file.FileType;
if (isPhotoAlbumMode == false)
{
const uint requestedSize = 20;
const ThumbnailMode thumbnailMode = ThumbnailMode.ListView;
const ThumbnailOptions thumbnailOptions = ThumbnailOptions.UseCurrentScale;
try
{
gotFileImg = await file.GetThumbnailAsync(thumbnailMode, requestedSize, thumbnailOptions);
BitmapImage icon = new BitmapImage();
if (gotFileImg != null)
{
gotEmptyImgVis = Visibility.Collapsed;
icon.SetSource(gotFileImg.CloneStream());
}
else
{
gotEmptyImgVis = Visibility.Visible;
}
gotFileImgVis = Visibility.Visible;
if (pageName == "ClassicModePage")
{
ClassicFileList.Add(new ListedItem()
{
FileImg = icon, FileIconVis = gotFileImgVis, FolderImg = gotFolImg, FileName = gotName, FileDate = gotDate, FileExtension = gotType, FilePath = gotPath
});
}
else
{
FilesAndFolders.Add(new ListedItem()
{
DotFileExtension = gotDotFileExtension, EmptyImgVis = gotEmptyImgVis, FileImg = icon, FileIconVis = gotFileImgVis, FolderImg = gotFolImg, FileName = gotName, FileDate = gotDate, FileExtension = gotType, FilePath = gotPath
});
}
}
catch
{
// Silent catch here to avoid crash
// TODO maybe some logging could be added in the future...
}
}
else
{
const uint requestedSize = 275;
const ThumbnailMode thumbnailMode = ThumbnailMode.PicturesView;
const ThumbnailOptions thumbnailOptions = ThumbnailOptions.ResizeThumbnail;
try
{
gotFileImg = await file.GetThumbnailAsync(thumbnailMode, requestedSize, thumbnailOptions);
BitmapImage icon = new BitmapImage();
if (gotFileImg != null)
{
gotEmptyImgVis = Visibility.Collapsed;
icon.SetSource(gotFileImg.CloneStream());
}
else
{
gotEmptyImgVis = Visibility.Visible;
}
gotFileImgVis = Visibility.Visible;
if (pageName == "ClassicModePage")
{
ClassicFileList.Add(new ListedItem()
{
FileImg = icon, FileIconVis = gotFileImgVis, FolderImg = gotFolImg, FileName = gotName, FileDate = gotDate, FileExtension = gotType, FilePath = gotPath
});
}
else
{
FilesAndFolders.Add(new ListedItem()
{
DotFileExtension = gotDotFileExtension, EmptyImgVis = gotEmptyImgVis, FileImg = icon, FileIconVis = gotFileImgVis, FolderImg = gotFolImg, FileName = gotName, FileDate = gotDate, FileExtension = gotType, FilePath = gotPath
});
}
}
catch
{
// Silent catch here to avoid crash
// TODO maybe some logging could be added in the future...
}
}
}
index += step;
files = await fileQueryResult.GetFilesAsync(index, step);
}
if (foldersCountSnapshot + filesCountSnapshot == 0)
{
TextState.isVisible = Visibility.Visible;
}
if (pageName != "ClassicModePage")
{
PVIS.isVisible = Visibility.Collapsed;
}
PVIS.isVisible = Visibility.Collapsed;
stopwatch.Stop();
Debug.WriteLine("Loading of: " + path + " completed in " + stopwatch.ElapsedMilliseconds + " Milliseconds.");
}
catch (UnauthorizedAccessException e)
{
if (path.Contains(@"C:\"))
{
DisplayConsentDialog();
}
else
{
MessageDialog unsupportedDevice = new MessageDialog("This device may be unsupported. Please file an issue report in Settings - About containing what device we couldn't access. Technical information: " + e, "Unsupported Device");
await unsupportedDevice.ShowAsync();
}
stopwatch.Stop();
Debug.WriteLine("Loading of: " + Universal.path + " failed in " + stopwatch.ElapsedMilliseconds + " Milliseconds.");
}
catch (COMException e)
{
stopwatch.Stop();
Debug.WriteLine("Loading of: " + Universal.path + " failed in " + stopwatch.ElapsedMilliseconds + " Milliseconds.");
Frame rootFrame = Window.Current.Content as Frame;
MessageDialog driveGone = new MessageDialog(e.Message, "Drive Unplugged");
await driveGone.ShowAsync();
rootFrame.Navigate(typeof(MainPage), new SuppressNavigationTransitionInfo());
}
tokenSource = null;
}
public async void AddItemsToCollectionAsync(string path, Page currentPage)
{
CancelLoadAndClearFiles();
_cancellationTokenSource = new CancellationTokenSource();
var tokenSourceCopy = _cancellationTokenSource;
TextState.isVisible = Visibility.Collapsed;
_pageName = currentPage.Name;
Universal.path = path;
if (!_pageName.Contains("Classic"))
{
_filesAndFolders.Clear();
}
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
PVIS.isVisible = Visibility.Visible;
switch (Universal.path)
{
case "Desktop":
Universal.path = MainPage.DesktopPath;
break;
case "Downloads":
Universal.path = MainPage.DownloadsPath;
break;
case "Documents":
Universal.path = MainPage.DocumentsPath;
break;
case "Pictures":
Universal.path = MainPage.PicturesPath;
break;
case "Music":
Universal.path = MainPage.MusicPath;
break;
case "Videos":
Universal.path = MainPage.VideosPath;
break;
case "OneDrive":
Universal.path = MainPage.OneDrivePath;
break;
}
try
{
_rootFolder = await StorageFolder.GetFolderFromPathAsync(Universal.path);
History.AddToHistory(Universal.path);
if (History.HistoryList.Count == 1) // If this is the only item present in History, we don't want back button to be enabled
{
BS.isEnabled = false;
}
else if (History.HistoryList.Count > 1) // Otherwise, if this is not the first item, we'll enable back click
{
BS.isEnabled = true;
}
switch (await _rootFolder.GetIndexedStateAsync())
{
case (IndexedState.FullyIndexed):
_options = new QueryOptions();
_options.FolderDepth = FolderDepth.Shallow;
if (_pageName.Contains("Generic"))
{
_options.SetThumbnailPrefetch(ThumbnailMode.ListView, 20, ThumbnailOptions.UseCurrentScale);
_options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.DateModified", "System.ContentType", "System.Size", "System.FileExtension" });
}
else if (_pageName.Contains("Photo"))
{
_options.SetThumbnailPrefetch(ThumbnailMode.PicturesView, 275, ThumbnailOptions.ResizeThumbnail);
_options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.FileExtension" });
}
_options.IndexerOption = IndexerOption.OnlyUseIndexerAndOptimizeForIndexedProperties;
break;
default:
_options = new QueryOptions();
_options.FolderDepth = FolderDepth.Shallow;
if (_pageName.Contains("Generic"))
{
_options.SetThumbnailPrefetch(ThumbnailMode.ListView, 20, ThumbnailOptions.UseCurrentScale);
_options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.DateModified", "System.ContentType", "System.ItemPathDisplay", "System.Size", "System.FileExtension" });
}
else if (_pageName.Contains("Photo"))
{
_options.SetThumbnailPrefetch(ThumbnailMode.PicturesView, 275, ThumbnailOptions.ResizeThumbnail);
_options.SetPropertyPrefetch(PropertyPrefetchOptions.BasicProperties, new string[] { "System.FileExtension" });
}
_options.IndexerOption = IndexerOption.UseIndexerWhenAvailable;
break;
}
SortEntry sort = new SortEntry()
{
PropertyName = "System.FileName",
AscendingOrder = true
};
_options.SortOrder.Add(sort);
if (!_rootFolder.AreQueryOptionsSupported(_options))
{
_options.SortOrder.Clear();
}
uint index = 0;
_folderQueryResult = _rootFolder.CreateFolderQueryWithOptions(_options);
//_folderQueryResult.ContentsChanged += FolderContentsChanged;
var numFolders = await _folderQueryResult.GetItemCountAsync();
IReadOnlyList <StorageFolder> storageFolders = await _folderQueryResult.GetFoldersAsync(index, _step);
while (storageFolders.Count > 0)
{
foreach (StorageFolder folder in storageFolders)
{
if (tokenSourceCopy.IsCancellationRequested)
{
return;
}
await AddFolder(folder, _pageName, tokenSourceCopy.Token);
}
index += _step;
storageFolders = await _folderQueryResult.GetFoldersAsync(index, _step);
}
index = 0;
_fileQueryResult = _rootFolder.CreateFileQueryWithOptions(_options);
_fileQueryResult.ContentsChanged += FileContentsChanged;
var numFiles = await _fileQueryResult.GetItemCountAsync();
IReadOnlyList <StorageFile> storageFiles = await _fileQueryResult.GetFilesAsync(index, _step);
while (storageFiles.Count > 0)
{
foreach (StorageFile file in storageFiles)
{
if (tokenSourceCopy.IsCancellationRequested)
{
return;
}
await AddFile(file, _pageName, tokenSourceCopy.Token);
}
index += _step;
storageFiles = await _fileQueryResult.GetFilesAsync(index, _step);
}
if (numFiles + numFolders == 0)
{
TextState.isVisible = Visibility.Visible;
}
stopwatch.Stop();
Debug.WriteLine("Loading of items in " + Universal.path + " completed in " + stopwatch.Elapsed.Seconds + " seconds.\n");
}
catch (UnauthorizedAccessException e)
{
if (path.Contains(@"C:\"))
{
DisplayConsentDialog();
}
else
{
MessageDialog unsupportedDevice = new MessageDialog("This device may be unsupported. Please file an issue report in Settings - About containing what device we couldn't access. Technical information: " + e, "Unsupported Device");
await unsupportedDevice.ShowAsync();
return;
}
}
catch (COMException e)
{
Frame rootFrame = Window.Current.Content as Frame;
MessageDialog driveGone = new MessageDialog(e.Message, "Drive Unplugged");
await driveGone.ShowAsync();
rootFrame.Navigate(typeof(MainPage), new SuppressNavigationTransitionInfo());
return;
}
if (!_pageName.Contains("Classic"))
{
PVIS.isVisible = Visibility.Collapsed;
}
PVIS.isVisible = Visibility.Collapsed;
}