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using System;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
namespace GuiUnit
{
public class MonoMacMainLoopIntegration : IMainLoopIntegration
{
Type Application {
get; set;
}
object SharedApplication {
get; set;
}
public MonoMacMainLoopIntegration ()
{
Application =
Type.GetType ("AppKit.NSApplication, Xamarin.Mac") ??
Type.GetType ("MonoMac.AppKit.NSApplication, XamMac") ??
Type.GetType ("MonoMac.AppKit.NSApplication, MonoMac");
if (Application == null)
throw new NotSupportedException ();
}
public void InitializeToolkit ()
{
// First, dlopen libxammac.dylib from the same dir we loaded the Xamarin.Mac dll
var dylibPath = Path.Combine (Path.GetDirectoryName (Application.Assembly.Location), "libxammac.dylib");
if (dlopen (dylibPath, 0) == IntPtr.Zero) {
var errPtr = dlerror ();
var errStr = (errPtr == IntPtr.Zero)? "<unknown error>" : Marshal.PtrToStringAnsi (errPtr);
Console.WriteLine ("WARNING: Cannot load {0}: {1}", dylibPath, errStr);
throw new InvalidOperationException("Unable to initialize Xamarin.Mac");
}
var initMethod = Application.GetMethod ("Init", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
initMethod.Invoke (null, null);
var sharedAppProperty = Application.GetProperty ("SharedApplication", System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Static);
SharedApplication = sharedAppProperty.GetValue (null, null);
}
public void InvokeOnMainLoop (InvokerHelper helper)
{
var potentialMethods = Application.GetMethods (System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance);
var invokeOnMainThreadMethod = potentialMethods.First (m => m.Name == "InvokeOnMainThread" && m.GetParameters ().Length == 1);
var invoker = Delegate.CreateDelegate (invokeOnMainThreadMethod.GetParameters () [0].ParameterType, helper, "Invoke");
invokeOnMainThreadMethod.Invoke (SharedApplication, new [] { invoker });
}
public void RunMainLoop ()
{
Application.GetMethod ("Run").Invoke (SharedApplication, null);
}
public void Shutdown (int exitCode)
{
Application.GetMethod ("Terminate").Invoke (SharedApplication, new [] { SharedApplication });
}
[DllImport ("/usr/lib/libSystem.dylib")]
static extern IntPtr dlopen (string path, int mode);
[DllImport ("/usr/lib/libSystem.dylib")]
static extern IntPtr dlerror ();
}
}
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