private async void ShowOverlayIfBookDownloading()
{
if (CheckIsDownloading())
{
_busyOverlay.Closing -= GoBack;
_busyOverlay.Closing += GoBack;
await _busyOverlay.Start(false);
IsBusy = true;
}
else if (StartDownload)
{
StartDownload = false;
DownloadBook(true);
}
}
public async void ShareAsync()
{
if (Book == null)
{
return;
}
if (!await SharingDataModel.ShowMessage())
{
return;
}
_busyOverlay.Closable = true;
_busyOverlay.Content = UIStrings.BookInfoPage_Loading;
_busyOverlay.Closing += Cancel;
using (await _busyOverlay.Start())
{
await SharingDataModel.UploadBook(Book);
}
}