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using System;
using System.IO;
using System.Linq;
using System.Reflection;
namespace GuiUnit
{
public class XwtMainLoopIntegration : IMainLoopIntegration
{
// List of Xwt backends we will try to use in order of priority
Tuple<string,string>[] backends = new[] {
Tuple.Create ("Xwt.Gtk.dll", "Xwt.GtkBackend.GtkEngine, Xwt.Gtk"),
Tuple.Create ("Xwt.WPF.dll", "Xwt.WPFBackend.WPFEngine, Xwt.WPF"),
Tuple.Create ("Xwt.Mac.dll", "Xwt.Mac.MacEngine, Xwt.Mac")
};
Type Application {
get; set;
}
public XwtMainLoopIntegration ()
{
Application = Type.GetType ("Xwt.Application, Xwt");
if (Application == null)
throw new NotSupportedException ();
}
public void InitializeToolkit ()
{
Type assemblyType = typeof (Assembly);
PropertyInfo locationProperty = assemblyType.GetProperty ("Location");
if (locationProperty == null)
throw new NotSupportedException();
if (TestRunner.LoadFileMethod == null)
throw new NotSupportedException();
string assemblyDirectory = Path.GetDirectoryName ((string)locationProperty.GetValue (Application.Assembly, null));
// Firstly init Xwt
var initialized = false;
var initMethods = Application.GetMethods (System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
var initMethod = initMethods.First (m => m.Name == "Initialize" && m.GetParameters ().Length == 1 && m.GetParameters ()[0].ParameterType == typeof (string));
foreach (var impl in backends) {
var xwtImpl = Path.Combine (assemblyDirectory, impl.Item1);
if (File.Exists (xwtImpl)) {
TestRunner.LoadFileMethod.Invoke (null, new[] { xwtImpl });
initMethod.Invoke (null, new object[] { impl.Item2 });
initialized = true;
break;
}
}
if (!initialized)
initMethod.Invoke (null, new object[] { null });
}
public void InvokeOnMainLoop (InvokerHelper helper)
{
var application = Type.GetType ("Xwt.Application, Xwt");
var invokeOnMainThreadMethod = application.GetMethod ("Invoke", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
var invoker = Delegate.CreateDelegate (invokeOnMainThreadMethod.GetParameters () [0].ParameterType, helper, "Invoke");
invokeOnMainThreadMethod.Invoke (null, new [] { invoker });
}
public void RunMainLoop ()
{
Application.GetMethod ("Run").Invoke (null, null);
}
public void Shutdown ()
{
Application.GetMethod ("Exit").Invoke (null, null);
}
}
}
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