public override async void OnPageFinished(Android.Webkit.WebView view, string url)
{
if (_reference == null || !_reference.TryGetTarget(out var renderer))
{
return;
}
if (renderer.Element == null || !renderer.Element.Navigating)
{
return;
}
renderer.Element.Navigating = false;
renderer.Element.HandleNavigationCompleted(url);
await renderer.OnJavascriptInjectionRequest(HybridWebViewControl.InjectedFunction);
if (renderer.Element.EnableGlobalCallbacks)
{
foreach (var function in HybridWebViewControl.GlobalRegisteredCallbacks.ToList())
{
await renderer.OnJavascriptInjectionRequest(HybridWebViewControl.GenerateFunctionScript(function.Key));
}
}
foreach (var function in renderer.Element.LocalRegisteredCallbacks.ToList())
{
await renderer.OnJavascriptInjectionRequest(HybridWebViewControl.GenerateFunctionScript(function.Key));
}
renderer.Element.CanGoBack = view.CanGoBack();
renderer.Element.CanGoForward = view.CanGoForward();
renderer.Element.HandleContentLoaded();
}
private bool AttemptToHandleCustomUrlScheme(Android.Webkit.WebView view, string url)
{
if (url.StartsWith("mailto"))
{
var emailData = Android.Net.MailTo.Parse(url);
var email = new Intent(Intent.ActionSendto);
email.SetData(Android.Net.Uri.Parse("mailto:"));
email.PutExtra(Intent.ExtraEmail, new string[] { emailData.To });
email.PutExtra(Intent.ExtraSubject, emailData.Subject);
email.PutExtra(Intent.ExtraCc, emailData.Cc);
email.PutExtra(Intent.ExtraText, emailData.Body);
if (email.ResolveActivity(Forms.Context.PackageManager) != null)
{
Forms.Context.StartActivity(email);
}
return(true);
}
if (url.StartsWith("http"))
{
var webPage = new Intent(Intent.ActionView, Android.Net.Uri.Parse(url));
if (webPage.ResolveActivity(Forms.Context.PackageManager) != null)
{
Forms.Context.StartActivity(webPage);
}
return(true);
}
return(false);
}
private void CheckResponseValidity(Android.Webkit.WebView view, string url)
{
if (_reference == null || !_reference.TryGetTarget(out var renderer))
{
return;
}
if (renderer.Element == null)
{
return;
}
var response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
Device.BeginInvokeOnMainThread(() =>
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
});
}
}
public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, string url)
{
if (DoesComponentWantToOverrideUrlLoading(view, url))
{
return(true);
}
return(base.ShouldOverrideUrlLoading(view, url));
}
public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, IWebResourceRequest request)
{
if (DoesComponentWantToOverrideUrlLoading(view, request.Url.ToString()))
{
return(true);
}
return(base.ShouldOverrideUrlLoading(view, request));
}
public override void OnPageStarted(Android.Webkit.WebView view, string url, Bitmap favicon)
{
if (_reference == null || !_reference.TryGetTarget(out var renderer))
{
return;
}
if (renderer.Element == null)
{
return;
}
renderer.Element.Navigating = true;
}
public override void OnReceivedHttpError(Android.Webkit.WebView view, IWebResourceRequest request, WebResourceResponse errorResponse)
{
if (_reference == null || !_reference.TryGetTarget(out var renderer))
{
return;
}
if (renderer.Element == null)
{
return;
}
renderer.Element.HandleNavigationError(errorResponse.StatusCode, request.Url.ToString());
renderer.Element.Navigating = false;
}
public override void OnReceivedSslError(Android.Webkit.WebView view, SslErrorHandler handler, SslError error)
{
if (_reference == null || !_reference.TryGetTarget(out var renderer))
{
return;
}
if (renderer.Element == null)
{
return;
}
if (HybridWebViewRenderer.IgnoreSslGlobally)
{
handler.Proceed();
}
else
{
handler.Cancel();
renderer.Element.Navigating = false;
}
}
private bool DoesComponentWantToOverrideUrlLoading(Android.Webkit.WebView view, string url)
{
if (_reference != null && _reference.TryGetTarget(out var renderer) && renderer.Element != null)
{
var response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
Device.BeginInvokeOnMainThread(() =>
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
});
return(true);
}
}
return(false);
}
public ValueCallback(Android.Webkit.WebView wbView)
{
webView = wbView;
}
