private void FormsWebView_OnNavigationStarted(object sender, DecisionHandlerDelegate e)
{
System.Diagnostics.Debug.WriteLine("Navigation has started");
System.Diagnostics.Debug.WriteLine($"Will cancel: {ViewModel.IsCancelled}");
e.Cancel = ViewModel.IsCancelled;
}
private void SetCurrentUrl(object sender, DecisionHandlerDelegate e)
{
Device.BeginInvokeOnMainThread(() =>
{
Element.CurrentUrl = e.Uri;
});
}
private void stringContent_OnNavigationStarted(object sender, DecisionHandlerDelegate e)
{
if (e.Uri.Contains("bbc.co.uk"))
{
e.OffloadOntoDevice = true;
}
}
public override WebResourceResponse ShouldInterceptRequest(Android.Webkit.WebView view,
IWebResourceRequest request)
{
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
goto EndShouldInterceptRequest;
}
if (renderer.Element == null)
{
goto EndShouldInterceptRequest;
}
var url = request.Url.ToString();
DecisionHandlerDelegate response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
Device.BeginInvokeOnMainThread(() =>
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
});
}
EndShouldInterceptRequest:
return(base.ShouldInterceptRequest(view, request));
}
private void CheckResponseValidity(Android.Webkit.WebView view, string url)
{
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
return;
}
if (renderer.Element == null)
{
return;
}
DecisionHandlerDelegate response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
Device.BeginInvokeOnMainThread(() =>
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
});
}
}
private void SetCurrentUrl(object sender, DecisionHandlerDelegate e)
{
if (Element == null || Control == null || Control.Disposed)
{
return;
}
Device.BeginInvokeOnMainThread(() =>
{
if (Element == null || Control == null || Control.Disposed)
{
return;
}
Element.CurrentUrl = Control.Url;
});
}
private void LoadFromString()
{
if (Element == null || Control == null || Element.Source == null)
{
return;
}
// Check cancellation
DecisionHandlerDelegate handler = Element.HandleNavigationStartRequest(Element.Source);
if (handler.Cancel)
{
return;
}
// Load
Control.LoadDataWithBaseURL(Element.BaseUrl ?? BaseUrl, Element.Source, MimeType, EncodingType, HistoryUri);
}
private void FormsWebView_OnNavigationStarted(object sender, DecisionHandlerDelegate e)
{
System.Diagnostics.Debug.WriteLine("Navigation has started");
}