private async void NavigationCompleteB(Windows.UI.Xaml.Controls.WebView webView, WebViewNavigationCompletedEventArgs args)
{
webView.NavigationCompleted -= NavigationCompleteB;
webView.NavigationCompleted += NavigationCompleteC;
IsMainPageChild(webView);
using (InMemoryRandomAccessStream ms = new InMemoryRandomAccessStream())
{
System.Diagnostics.Debug.WriteLine("B webView.Size=[" + webView.Width + "," + webView.Height + "] IsOnMainThread=[" + P42.Utils.Environment.IsOnMainThread + "]");
try
{
var width = (int)webView.GetValue(PngWidthProperty);
System.Diagnostics.Debug.WriteLine("B width=[" + width + "]");
var contentSize = await webView.WebViewContentSizeAsync();
System.Diagnostics.Debug.WriteLine("B contentSize=[" + contentSize + "]");
System.Diagnostics.Debug.WriteLine("B webView.Size=[" + webView.Width + "," + webView.Height + "] IsOnMainThread=[" + P42.Utils.Environment.IsOnMainThread + "]");
if (contentSize.Height != webView.Height || width != webView.Width)
{
webView.Width = contentSize.Width;
webView.Height = contentSize.Height;
System.Diagnostics.Debug.WriteLine("B webView.Size=[" + webView.Width + "," + webView.Height + "] IsOnMainThread=[" + P42.Utils.Environment.IsOnMainThread + "]");
webView.InvalidateMeasure();
System.Diagnostics.Debug.WriteLine("B webView.Size=[" + webView.Width + "," + webView.Height + "] IsOnMainThread=[" + P42.Utils.Environment.IsOnMainThread + "]");
}
//await Task.Delay(2000);
await webView.CapturePreviewToStreamAsync(ms);
var decoder = await BitmapDecoder.CreateAsync(ms);
var transform = new BitmapTransform
{
//ScaledHeight = (uint)decoder.PixelHeight,
//ScaledWidth = (uint)decoder.PixelWidth
ScaledHeight = (uint)Math.Ceiling(webView.Height),
ScaledWidth = (uint)Math.Ceiling(webView.Width)
};
var pixelData = await decoder.GetPixelDataAsync(
BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Straight,
transform,
ExifOrientationMode.RespectExifOrientation,
ColorManagementMode.DoNotColorManage);
var bytes = pixelData.DetachPixelData();
var piclib = Windows.Storage.ApplicationData.Current.TemporaryFolder;
var fileName = (string)webView.GetValue(PngFileNameProperty) + ".png";
var file = await piclib.CreateFileAsync(fileName, Windows.Storage.CreationCollisionOption.GenerateUniqueName);
using (var stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
//(uint)decoder.PixelWidth, (uint)decoder.PixelHeight,
(uint)Math.Ceiling(webView.Width), (uint)Math.Ceiling(webView.Height),
0, 0, bytes);
await encoder.FlushAsync();
}
webView.Width = (int)webView.GetValue(BeforeWidthProperty);
webView.Height = (int)webView.GetValue(BeforeHeightProperty);
webView.Refresh();
var toFileResult = new ToFileResult(false, file.Path);
webView.SetValue(ToFileResultProperty, toFileResult);
}
catch (Exception e)
{
webView.Width = (int)webView.GetValue(BeforeWidthProperty);
webView.Height = (int)webView.GetValue(BeforeHeightProperty);
webView.Refresh();
var toFileResult = new ToFileResult(true, e.InnerException?.Message ?? e.Message);
webView.SetValue(ToFileResultProperty, toFileResult);
}
}
webView.Refresh();
}
