public override IAsyncOperation <IReadOnlyList <IStorageItem> > GetItemsAsync(uint startIndex, uint maxItemsToRetrieve)
{
return(AsyncInfo.Run <IReadOnlyList <IStorageItem> >(async(cancellationToken) =>
{
var res = await GetFolderAndItems(Path, true, (int)startIndex, (int)maxItemsToRetrieve);
if (res.Items is null)
{
return null;
}
var items = new List <IStorageItem>();
foreach (var entry in res.Items)
{
if (entry.IsFolder)
{
items.Add(ShellStorageFolder.FromShellItem(entry));
}
else
{
items.Add(ShellStorageFile.FromShellItem(entry));
}
}
return items;
}));
}
public override IAsyncOperation <StorageItemThumbnail> GetThumbnailAsync(ThumbnailMode mode, uint requestedSize, ThumbnailOptions options)
{
return(AsyncInfo.Run(async(cancellationToken) =>
{
if (ShellStorageFolder.IsShellPath(Path))
{
return null;
}
var zipFile = await StorageFile.GetFileFromPathAsync(Path);
return await zipFile.GetThumbnailAsync(mode, requestedSize, options);
}));
}
public static IAsyncOperation <BaseStorageFile> FromPathAsync(string path)
{
return(AsyncInfo.Run <BaseStorageFile>(async(cancellationToken) =>
{
if (ShellStorageFolder.IsShellPath(path))
{
if (await GetFile(path) is ShellFileItem file)
{
return FromShellItem(file);
}
}
return null;
}));
}
public override IAsyncOperation <IStorageItem> GetItemAsync(string name)
{
return(AsyncInfo.Run <IStorageItem>(async(cancellationToken) =>
{
var res = await GetFolderAndItems(Path, true);
if (res.Items is null)
{
return null;
}
var entry = res.Items.FirstOrDefault(x => x.FileName != null && x.FileName.Equals(name, StringComparison.OrdinalIgnoreCase));
if (entry is null)
{
return null;
}
if (entry.IsFolder)
{
return ShellStorageFolder.FromShellItem(entry);
}
return ShellStorageFile.FromShellItem(entry);
}));
}
