/// <summary>Helper used to create an NSApplication subclass.</summary>
/// <param name = "appClass">The name of the subclass, e.g. "MyApplication".</param>
/// <param name = "nibName">The name of a nib file, e.g. "MainMenu.nib".</param>
/// <param name = "extendDebugMenu">Used to add custom items to the debug menu. May be null.</param>
public static NSApplication Create(string appClass, string nibName, Action<NSMenu> extendDebugMenu)
{
NSApplication app = new Class(appClass).Call("sharedApplication").To<NSApplication>();
ms_mainThread = Thread.CurrentThread;
// Load our nib. This will instantiate all of the native objects and wire them together.
// The C# objects will be created the first time a managed method is called.
NSMutableDictionary dict = NSMutableDictionary.Create();
bool loaded = NSBundle.mainBundle().loadNibFile_externalNameTable_withZone(
NSString.Create(nibName), dict, IntPtr.Zero);
if (!loaded)
throw new InvalidOperationException("Couldn't load " + nibName + ".");
// We need an NSAutoreleasePool to do Native.Call, but we don't want to have one
// hanging around while we're in the main event loop because that may hide bugs.
// So, we'll instantiate a Native instance here and call Invoke later which can
// be done without an NSAutoreleasePool.
ms_run = new Native(app, new Selector("run"));
ms_helper = AppHelper.Create();
#if DEBUG
app.BeginInvoke(() => DoInitDebugMenu(extendDebugMenu));
#endif
ms_startupPool.release();
ms_startupPool = null;
return app;
}
private void DoGetClassMethodsString(StringBuilder builder, bool includePrivate)
{
Class klass = new Class(object_getClass(m_class));
bool needNewLine = false;
while (klass != null && (IntPtr) klass != IntPtr.Zero)
{
List<List<string>> table = new List<List<string>>();
DoAddMethods(klass, table, includePrivate);
if (table.Count > 0)
{
if (needNewLine)
{
builder.AppendLine();
needNewLine = false;
}
table.Sort((lhs, rhs) => lhs[0].CompareTo(rhs[0]));
DoAlign(table);
builder.Append(klass.Name);
builder.AppendLine(" class methods:");
for (int i = 0; i < table.Count; ++i)
{
foreach (string entry in table[i])
{
builder.Append(entry);
builder.Append(" ");
}
builder.AppendLine();
}
needNewLine = true;
}
if (klass.Name == "NSObject")
break;
klass = klass.BaseClass;
}
}
internal Native(IntPtr target, Selector selector, Class klass)
: this(target, selector, DoGetImp(target, selector, (IntPtr) klass), null)
{
}
private void DoAddMethods(Class klass, List<List<string>> table, bool includePrivate)
{
int count = 0;
IntPtr buffer = class_copyMethodList((IntPtr) klass, ref count);
if (count > 0)
{
PtrArray methods = new PtrArray(buffer, count);
for (int i = 0; i < count; ++i)
{
Selector sel = new Selector(method_getName(methods[i]));
if (includePrivate || (sel.Name.Length > 0 && sel.Name[0] != '_'))
{
List<string> row = new List<string>();
row.Add(sel.Name);
IntPtr imp = method_getImplementation(methods[i]);
row.Add(imp.ToInt32().ToString("X"));
table.Add(row);
}
}
}
Marshal.FreeHGlobal(buffer);
}
private static object DoDrainBuffer(IntPtr buffer, string encoding)
{
object result;
switch (encoding)
{
case "i":
result = Marshal.ReadInt32(buffer);
break;
case "l":
result = Marshal.ReadInt32(buffer);
break;
case "q":
result = Marshal.ReadInt64(buffer);
break;
case "I":
result = unchecked((UInt32) Marshal.ReadInt32(buffer));
break;
case "L":
result = unchecked((UInt32) Marshal.ReadInt32(buffer));
break;
case "Q":
result = unchecked((UInt64) Marshal.ReadInt64(buffer));
break;
case "f":
result = Marshal.PtrToStructure(buffer, typeof(float));
break;
case "d":
result = Marshal.PtrToStructure(buffer, typeof(double));
break;
case "v":
case "Vv":
result = null;
break;
case "@":
IntPtr ip = Marshal.ReadIntPtr(buffer);
result = NSObject.Lookup(ip);
break;
case "#":
result = new Class(Marshal.ReadIntPtr(buffer));
break;
case ":":
result = new Selector(Marshal.ReadIntPtr(buffer));
break;
default:
result = DoDrainPtrBuffer(buffer, encoding);
if (result == null)
result = DoDrainStructBuffer(buffer, encoding);
if (result == null)
throw new ArgumentException("Don't know how to read buffer of: " + encoding);
break;
}
return result;
}
