private void HtmlPreviewLoaded(object sender, RoutedEventArgs e)
{
Loaded -= HtmlPreviewLoaded;
var context = TaskScheduler.FromCurrentSynchronizationContext();
//This is a perf helper, the MetroContentControl slides content in
// The preview pane stutters and looks crap, but hiding it then showing it after the animation it looks way better
Unloaded += (o, args) =>
{
if (hwndContentHost == null)
{
return;
}
hwndContentHost.Visibility = Visibility.Hidden;
};
Loaded +=
(o, args) =>
{
var delay = TaskEx.Delay(500);
delay.ContinueWith(t =>
{
hwndContentHost.Visibility = Visibility.Visible;
}, context);
};
//We are hosting the Awesomium preview in another appdomain so our main UI thread does not take the hit
hostAppDomain = AppDomain.CreateDomain("HtmlPreviewDomain");
var filename = FileName;
// create the AppDomain on a new thread as we want to ensure it is an
// STA thread as this makes life easier for creating UI components
var thread = new Thread(() =>
{
var awesomiumHostType = typeof(AwesomiumHost);
host = (AwesomiumHost)hostAppDomain.CreateInstanceAndUnwrap(awesomiumHostType.Assembly.FullName, awesomiumHostType.FullName,
false, BindingFlags.Default, null, new object[] { filename, BaseDirectory }, CultureInfo.CurrentCulture, null);
host.SetHtml(content);
var controlHandle = host.ControlHandle;
Task.Factory.StartNew(() =>
{
//Delay until preview control has loaded before creating content host
host.LoadedWaitHandle.WaitOne();
// We need to invoke on the Markpad dispatcher, we are currently in the host appdomains STA Thread.
Dispatcher.BeginInvoke(new Action(() =>
{
hwndContentHost = new HwndContentHost(controlHandle);
//Without the border we don't get the dropshadows
Content = new Border
{
Background = Brushes.White,
Padding = new Thickness(3),
Child = hwndContentHost
};
}));
}, TaskCreationOptions.LongRunning);
host.Run();
//I can't get this unloading without an error,
// I am gathering Application.Shutdown is causing the appdomain to shutdown too
//AppDomain.Unload(hostAppDomain);
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
private void HtmlPreviewLoaded(object sender, RoutedEventArgs e)
{
Loaded -= HtmlPreviewLoaded;
var context = TaskScheduler.FromCurrentSynchronizationContext();
//This is a perf helper, the MetroContentControl slides content in
// The preview pane stutters and looks crap, but hiding it then showing it after the animation it looks way better
Unloaded += (o, args) =>
{
if (hwndContentHost == null) return;
hwndContentHost.Visibility = Visibility.Hidden;
};
Loaded +=
(o, args) =>
{
var delay = TaskEx.Delay(500);
delay.ContinueWith(t =>
{
hwndContentHost.Visibility = Visibility.Visible;
}, context);
};
//We are hosting the Awesomium preview in another appdomain so our main UI thread does not take the hit
hostAppDomain = AppDomain.CreateDomain("HtmlPreviewDomain");
var filename = FileName;
// create the AppDomain on a new thread as we want to ensure it is an
// STA thread as this makes life easier for creating UI components
var thread = new Thread(() =>
{
var awesomiumHostType = typeof(AwesomiumHost);
host = (AwesomiumHost)hostAppDomain.CreateInstanceAndUnwrap(awesomiumHostType.Assembly.FullName, awesomiumHostType.FullName,
false, BindingFlags.Default, null, new object[] { filename, BaseDirectory }, CultureInfo.CurrentCulture, null);
host.SetHtml(content);
var controlHandle = host.ControlHandle;
Task.Factory.StartNew(() =>
{
//Delay until preview control has loaded before creating content host
host.LoadedWaitHandle.WaitOne();
// We need to invoke on the Markpad dispatcher, we are currently in the host appdomains STA Thread.
Dispatcher.BeginInvoke(new Action(() =>
{
hwndContentHost = new HwndContentHost(controlHandle);
//Without the border we don't get the dropshadows
Content = new Border
{
Background = Brushes.White,
Padding = new Thickness(3),
Child = hwndContentHost
};
}));
}, TaskCreationOptions.LongRunning);
host.Run();
//I can't get this unloading without an error,
// I am gathering Application.Shutdown is causing the appdomain to shutdown too
//AppDomain.Unload(hostAppDomain);
});
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
