private void HandleDecisionHandlerDelegateResponse(Android.Webkit.WebView view, string url, Abstractions.Delegates.DecisionHandlerDelegate response)
{
if (!response.Cancel && !response.OffloadOntoDevice)
{
return;
}
var finishedManualResetEvent = new ManualResetEvent(false);
void CancelOrOffloadOntoDevice()
{
if (response.OffloadOntoDevice && !AttemptToHandleCustomUrlScheme(view, url))
{
Device.OpenUri(new Uri(url));
}
view.StopLoading();
finishedManualResetEvent.Set();
}
if (Device.IsInvokeRequired)
{
Device.BeginInvokeOnMainThread(CancelOrOffloadOntoDevice);
}
else
{
CancelOrOffloadOntoDevice();
}
finishedManualResetEvent.WaitOne();
}
void CheckResponseValidity(Android.Webkit.WebView view, string url)
{
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer 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 WebResourceResponse ShouldInterceptRequest(Android.Webkit.WebView view, string url)
{
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Lollipop)
{
goto EndShouldInterceptRequest;
}
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
goto EndShouldInterceptRequest;
}
if (renderer.Element == null)
{
goto EndShouldInterceptRequest;
}
var 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, url));
}
public override void OnPageStarted(AWebView view, string url, Bitmap favicon)
{
if (view is null)
{
throw new ArgumentNullException(nameof(view));
}
if (_renderer?.Element == null || _webView == null || string.IsNullOrWhiteSpace(url) || url == WebViewRenderer.AssetBaseUrl)
{
return;
}
_renderer.SyncNativeCookiesToElement(url);
var cancel = false;
if (!url.Equals(_renderer.UrlCanceled, StringComparison.OrdinalIgnoreCase))
{
cancel = SendNavigatingCanceled(url);
}
_renderer.UrlCanceled = null;
if (cancel)
{
_navigationResult = WebNavigationResult.Cancel;
view.StopLoading();
}
else
{
_navigationResult = WebNavigationResult.Success;
base.OnPageStarted(view, url, favicon);
_webView.HandleNavigationStarting(new Uri(url));
}
}
public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, IWebResourceRequest request)
{
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
goto EndShouldInterceptRequest;
}
if (renderer.Element == null)
{
goto EndShouldInterceptRequest;
}
string url = request.Url.ToString();
var response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
Device.BeginInvokeOnMainThread(() =>
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
});
return(true);
}
EndShouldInterceptRequest:
return(base.ShouldOverrideUrlLoading(view, request));
}
public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, string url)
{
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.N)
{
return(base.ShouldOverrideUrlLoading(view, url));
}
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
return(base.ShouldOverrideUrlLoading(view, url));
}
if (renderer.Element == null)
{
return(base.ShouldOverrideUrlLoading(view, url));
}
var response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
return(true);
}
return(base.ShouldOverrideUrlLoading(view, url));
}
public override void OnPageStarted(WView view, string url, Bitmap favicon)
{
if (_renderer == null || string.IsNullOrWhiteSpace(url) || url == WebViewRenderer.AssetBaseUrl)
{
return;
}
var cancel = false;
if (!url.Equals(_renderer.UrlCanceled, StringComparison.OrdinalIgnoreCase))
{
cancel = SendNavigatingCanceled(url);
}
_renderer.UrlCanceled = null;
if (cancel)
{
_navigationResult = WebNavigationResult.Cancel;
view.StopLoading();
}
else
{
_navigationResult = WebNavigationResult.Success;
base.OnPageStarted(view, url, favicon);
}
}
public override bool ShouldOverrideUrlLoading(Android.Webkit.WebView view, IWebResourceRequest request)
{
if (Reference == null || !Reference.TryGetTarget(out FormsWebViewRenderer renderer))
{
return(true);
}
if (renderer.Element == null)
{
return(true);
}
string url = request.Url.ToString();
var response = renderer.Element.HandleNavigationStartRequest(url);
if (response.Cancel || response.OffloadOntoDevice)
{
if (response.OffloadOntoDevice)
{
AttemptToHandleCustomUrlScheme(view, url);
}
view.StopLoading();
return(true);
}
return(false);
}
public override void OnPageStarted(Android.Webkit.WebView view, string url, Bitmap favicon)
{
if (((NavigationRequestedDelegate)Element.InvokeEvent(WebViewEventType.NavigationRequested, new NavigationRequestedDelegate(Element, url))).Cancel)
{
view.StopLoading();
}
else
{
Element.SetValue(FormsWebView.SourceProperty, url);
}
}
public override void OnPageStarted(WView view, string url, Bitmap favicon)
{
if (_renderer == null || string.IsNullOrWhiteSpace(url) || url == WebViewRenderer.AssetBaseUrl)
{
return;
}
if (_renderer?.Element?.ShouldManageCookies == true)
{
var cookieManager = CookieManager.Instance;
cookieManager.SetAcceptCookie(true);
cookieManager.RemoveAllCookie();
var cookies = _renderer.Element.Cookies?.GetCookies(new System.Uri(url));
for (var i = 0; i < (cookies?.Count ?? -1); i++)
{
string cookieValue = cookies[i].Value;
string cookieDomain = cookies[i].Domain;
string cookieName = cookies[i].Name;
cookieManager.SetCookie(cookieDomain, cookieName + "=" + cookieValue);
}
}
var cancel = false;
if (!url.Equals(_renderer.UrlCanceled, StringComparison.OrdinalIgnoreCase))
{
cancel = SendNavigatingCanceled(url);
}
_renderer.UrlCanceled = null;
if (cancel)
{
_navigationResult = WebNavigationResult.Cancel;
view.StopLoading();
}
else
{
_navigationResult = WebNavigationResult.Success;
base.OnPageStarted(view, url, favicon);
}
}
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);
}
partial void StopPartial()
{
_webView.StopLoading();
}
