private void OnFrameNavigationCompleted(WebViewControlNavigationCompletedEventArgs args)
{
var handler = FrameNavigationCompleted;
if (handler != null)
{
handler(this, args);
}
}
private void OnNavigationCompleted(WebViewControlNavigationCompletedEventArgs args)
{
// We could have used
// if (NavigationCompleted != null) NavigationCompleted(this, args);
// However, if there is a subscriber and the moment the null check and the call to
// the event handler by the method is invoked, the subscriber may unsubscribe
// (e.g. on a different thread) and cause a NullReferenceException.
// To work around this create a temporarily local variable to store the reference and check that
var handler = NavigationCompleted;
if (handler != null)
{
handler(this, args);
}
}
private void OnNavigationCompleted(IWebViewControl sender, Windows.Web.UI.WebViewControlNavigationCompletedEventArgs args)
{
// When Source set to null or navigating to stream/string, we navigate to "about:blank" internally.
if (NavigatingToAboutBlank)
{
Verify.Implies(NavigatingToAboutBlank, Source == null || Source == WebViewDefaults.AboutBlankUri);
// Make sure we pass null in the event args
var a = new WebViewControlNavigationCompletedEventArgs(args, null);
OnNavigationCompleted(a);
}
else
{
OnNavigationCompleted(args);
}
}
