private async Task AddItemToRecentListAsync(IStorageItem item, AccessListEntry entry)
{
BitmapImage ItemImage;
string ItemPath;
string ItemName;
StorageItemTypes ItemType;
bool ItemFolderImgVis;
bool ItemEmptyImgVis;
bool ItemFileIconVis;
if (item.IsOfType(StorageItemTypes.File))
{
// Try to read the file to check if still exists
// This is only needed to remove files opened from a disconnected android/MTP phone
if (string.IsNullOrEmpty(item.Path)) // This indicates that the file was open from an MTP device
{
using (var inputStream = await item.AsBaseStorageFile().OpenReadAsync())
using (var classicStream = inputStream.AsStreamForRead())
using (var streamReader = new StreamReader(classicStream))
{
// NB: this might trigger the download of the file from OneDrive
streamReader.Peek();
}
}
ItemName = item.Name;
ItemPath = string.IsNullOrEmpty(item.Path) ? entry.Metadata : item.Path;
ItemType = StorageItemTypes.File;
ItemImage = new BitmapImage();
BaseStorageFile file = item.AsBaseStorageFile();
using var thumbnail = await file.GetThumbnailAsync(Windows.Storage.FileProperties.ThumbnailMode.ListView, 24, Windows.Storage.FileProperties.ThumbnailOptions.UseCurrentScale);
if (thumbnail == null)
{
ItemEmptyImgVis = true;
}
else
{
await ItemImage.SetSourceAsync(thumbnail);
ItemEmptyImgVis = false;
}
ItemFolderImgVis = false;
ItemFileIconVis = true;
recentItemsCollection.Add(new RecentItem()
{
RecentPath = ItemPath,
Name = ItemName,
Type = ItemType,
FolderImg = ItemFolderImgVis,
EmptyImgVis = ItemEmptyImgVis,
FileImg = ItemImage,
FileIconVis = ItemFileIconVis
});
}
}
public override IAsyncOperation <IDictionary <string, object> > RetrievePropertiesAsync(IEnumerable <string> propertiesToRetrieve)
{
return(AsyncInfo.Run <IDictionary <string, object> >(async(cancellationToken) =>
{
var props = new Dictionary <string, object>();
propertiesToRetrieve.ForEach(x => props[x] = null);
// Fill common poperties
var ret = item.AsBaseStorageFile()?.GetBasicPropertiesAsync() ?? item.AsBaseStorageFolder()?.GetBasicPropertiesAsync();
var basicProps = ret != null ? await ret : null;
props["System.ItemPathDisplay"] = item?.Path;
props["System.DateCreated"] = basicProps?.ItemDate;
props["System.DateModified"] = basicProps?.DateModified;
return props;
}));
}
public static async Task <byte[]> LoadIconFromStorageItemAsync(IStorageItem item, uint thumbnailSize, ThumbnailMode thumbnailMode)
{
if (item.IsOfType(StorageItemTypes.File))
{
using var thumbnail = (StorageItemThumbnail) await FilesystemTasks.Wrap(
() => item.AsBaseStorageFile ().GetThumbnailAsync (thumbnailMode, thumbnailSize, ThumbnailOptions.ResizeThumbnail).AsTask());
if (thumbnail != null)
{
return(await thumbnail.ToByteArrayAsync());
}
}
else if (item.IsOfType(StorageItemTypes.Folder))
{
using var thumbnail = (StorageItemThumbnail) await FilesystemTasks.Wrap(
() => item.AsBaseStorageFolder ().GetThumbnailAsync (thumbnailMode, thumbnailSize, ThumbnailOptions.ResizeThumbnail).AsTask());
if (thumbnail != null)
{
return(await thumbnail.ToByteArrayAsync());
}
}
return(null);
}
