void ICefWebBrowserInternal.OnLoadEnd(LoadEndEventArgs e)
{
// Reset the flags used to indicate that the resource associated
// with the main frame is not acessible or has a cert error.
_mainFrameResourceNotAccessible = false;
_mainFrameCertificateError = false;
this.DispatchIfRequired(() =>
{
try
{
// If the source URI has changed since navigation was started, initiate naviagation again.
if (!_sourceUrl.Equals(_currentUrl))
{
NavigateTo(_sourceUrl);
}
ExecuteJavaScript(StaticWebContent.GetOnLoadEndScript());
}
catch (Exception ex)
{
Logger.Error("Error in OnLoadEnd : {0}", ex);
}
finally
{
if (LoadEnd != null)
{
LoadEnd(this, e);
}
}
},
true);
}
void ICefWebBrowserInternal.OnLoadError(LoadErrorEventArgs e)
{
// OnLoadError is called when an error occurs while loading the main frame
// resource (resource of type CefResourceType.MainFrame). OnLoadError is not
// called when child resources of the main frame (scripts, etc) fail to load.
this.DispatchIfRequired(() =>
{
try
{
if (_mainFrameCertificateError)
{
var html = StaticWebContent.GetInvalidCertErrorPage(e.FailedUrl);
e.Frame.LoadString(html, PackagedApplicationSchemeHandlerFactory.ErrorPage);
Logger.Error("Unable to load the main frame due to an invalid certifiate: " + e.FailedUrl);
}
else if (_mainFrameResourceNotAccessible)
{
// The resource associated with the main frame is not accessible.
// The domain may not be whitelisted, etc.
var html = StaticWebContent.GetResourceNotAccessibleErrorPage(e.FailedUrl);
e.Frame.LoadString(html, PackagedApplicationSchemeHandlerFactory.ErrorPage);
Logger.Error("Main frame resource not accessible: " + e.FailedUrl);
}
else if (e.ErrorCode != CefErrorCode.Aborted)
{
// The main frame failed to load for some reason. Show the default error
// page along with any error text that may have been provided.
var html = StaticWebContent.GetLoadErrorPage(e.FailedUrl, e.ErrorText, ParagonLogManager.CurrentParagonLogFile);
e.Frame.LoadString(html, PackagedApplicationSchemeHandlerFactory.ErrorPage);
Logger.Error("Error loading the main frame: url = {0}, Error = {1} {2}", e.FailedUrl, e.ErrorCode, e.ErrorText);
}
else
{
// In various situations, OnLoadError is called with CefErrorCode.Aborted. Aside
// from certificate errors or cases where the main frame resource is not available
// (both of which are handled above and both of which are CefErrorCode.Aborted errors)
// OnLoadError may be called for cases where there it does not actually indicate
// that a real problem has occurred. For example, it is called when the main frame
// is refreshed. We log it here at INFO because in most cases it does not represent
// a real error condition.
Logger.Info("Main frame load aborted: " + e.FailedUrl);
}
if (LoadError != null)
{
LoadError(this, e);
}
}
catch (Exception ex)
{
Logger.Error("Exception encountered while handling a page load error", ex);
}
}, true);
}
void ICefWebBrowserInternal.OnLoadStart(LoadStartEventArgs e)
{
this.DispatchIfRequired(() =>
{
try
{
ExecuteJavaScript(StaticWebContent.GetOnLoadStartScript());
}
catch (Exception ex)
{
Logger.Error("Error in OnLoadStart : {0}", ex);
}
},
true);
}