public async Task <IReadOnlyList <IStorageItem> > GetItemsAsync()
{
var items = await FileHandle.InvokeAsync <IJSInProcessObjectReference?>("getItems");
if (items is null)
{
return(Array.Empty <IStorageItem>());
}
var count = items.Invoke <int>("count");
return(Enumerable.Range(0, count)
.Select(index =>
{
var reference = items.Invoke <IJSInProcessObjectReference>("at", index);
return reference.Invoke <string>("getKind") switch
{
"directory" => (IStorageItem) new JSStorageFolder(reference),
"file" => new JSStorageFile(reference),
_ => null
};
})
.Where(i => i is not null)
.ToArray() !);
}
public async Task <Stream> OpenReadAsync()
{
var stream = await FileHandle.InvokeAsync <IJSStreamReference>("openRead");
// Remove maxAllowedSize limit, as developer can decide if they read only small part or everything.
return(await stream.OpenReadStreamAsync(long.MaxValue, CancellationToken.None));
}
public async Task <Stream> OpenWriteAsync()
{
var properties = await FileHandle.InvokeAsync <FileProperties?>("getProperties");
var streamWriter = await FileHandle.InvokeAsync <IJSInProcessObjectReference>("openWrite");
return(new JSWriteableStream(streamWriter, (long)(properties?.Size ?? 0)));
}