/// <summary>
/// 共有の<c>DataPackageView</c>からこのクラスのインスタンスを作成する.
/// </summary>
/// <param name="package">共有の<c>DataPackageView</c></param>
/// <returns>このクラスのインスタンス</returns>
public static async Task <SharedBitmapItem> CreateFromDataPackage(DataPackageView package)
{
if (package == null)
{
throw new ArgumentNullException("package");
}
if (!package.Contains(StandardDataFormats.Bitmap))
{
return(null);
}
var bmpStream = await package.GetBitmapAsync();
using (var bmpStreamWithContentType = await bmpStream.OpenReadAsync())
{
var bmpImage = new BitmapImage();
bmpImage.SetSource(bmpStreamWithContentType);
var item = new SharedBitmapItem(bmpImage);
await item.KeepSharedBitmapInfoAsync(bmpStreamWithContentType);
return(item);
}
}
/// <summary>
/// 貼り付けのポップアップの中身をクリップボードを参照して設定する.
/// </summary>
private async void PreparePastePopupContentsAsync()
{
var dataPackageView = Clipboard.GetContent();
var sharedItems = new List <ISharedItem>();
var bmpItem = await SharedBitmapItem.CreateFromDataPackage(dataPackageView);
if (bmpItem != null)
{
sharedItems.Add(bmpItem);
}
var stgItems = await SharedStorageFileItem.CreateFromDataPackage(dataPackageView);
if (stgItems != null)
{
foreach (var stgItem in stgItems)
{
sharedItems.Add(stgItem);
}
}
if (sharedItems.Count == 0)
{
this.PasteAppBarButton.IsEnabled = false;
return;
}
this.pastedItemsView.ItemsSource = sharedItems;
this.pastedItemsView.SelectAll();
this.PasteAppBarButton.IsEnabled = true;
}
/// <summary>
/// 共有データに含まれる画像とファイルを登録候補として追加する.
/// </summary>
/// <param name="shareOperation"></param>
private async void AddSharedItemsAsync(ShareOperation shareOperation)
{
var bmpItem = await SharedBitmapItem.CreateFromDataPackage(shareOperation.Data);
if (bmpItem != null)
{
this.sharedItems.Add(bmpItem);
}
var stgItems = await SharedStorageFileItem.CreateFromDataPackage(shareOperation.Data);
if (stgItems != null)
{
foreach (var stgItem in stgItems)
{
this.sharedItems.Add(stgItem);
}
}
this.SharedItemsView.SelectAll();
}