/// <summary>
/// Raised when the user initiates a Share operation.
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
async void DataTransferManager_DataRequested(DataTransferManager sender, DataRequestedEventArgs args)
{
DataRequest request = args.Request;
// We are going to use an async API to talk to the webview, so get a deferral to give
// us time to generate the results.
DataRequestDeferral deferral = request.GetDeferral();
DataPackage dp = await WebViewControl.CaptureSelectedContentToDataPackageAsync();
// Determine whether there was any selected content.
bool hasSelection = false;
try
{
hasSelection = (dp != null) && (dp.GetView().AvailableFormats.Count > 0);
}
catch (Exception ex)
{
switch (ex.HResult)
{
case unchecked ((int)0x80070490):
// Mobile does not generate a data package with AvailableFormats
// and results in an exception. Sorry. Handle the case by acting as
// if we had no selected content.
hasSelection = false;
break;
default:
// All other exceptions are unexpected. Let them propagate.
throw;
}
}
if (hasSelection)
{
// Webview has a selection, so we'll share its data package.
dp.Properties.Title = "WebView sample selected content";
}
else
{
// No selection, so we'll share the url of the webview.
dp = new DataPackage();
dp.SetWebLink(WebViewControl.Source);
dp.Properties.Title = "WebView sample page";
}
dp.Properties.Description = WebViewControl.Source.ToString();
request.Data = dp;
deferral.Complete();
}
