static IntPtr CreateClosure(ClosureMarshal marshaler)
{
IntPtr raw_closure = g_closure_new_simple(Marshal.SizeOf(typeof(GClosure)), IntPtr.Zero);
g_closure_set_marshal(raw_closure, marshaler);
return(raw_closure);
}
void SetCallback(Delegate callback, ClosureMarshal callbackWrapper)
{
var gcHandle = GCHandle.Alloc(callback, GCHandleType.Weak);
Marshal.WriteIntPtr(handle, (int)callbackGCHandleOffset, (IntPtr)gcHandle);
var(callback_, notify_, userData_) = UnmanagedClosureMarshalDelegateFactory.CreateNotifyDelegate(callbackWrapper);
g_closure_set_meta_marshal(handle, userData_, callback_);
g_closure_add_invalidate_notifier(handle, userData_, notify_);
}
static void ConnectActivate(GLib.GType gtype)
{
if (ActivateMarshalCallback == null)
{
ActivateMarshalCallback = new ClosureMarshal(ActivateMarshal_cb);
}
GtkWidgetClass klass = GetClassStruct(gtype, false);
klass.ActivateSignal = RegisterSignal("activate_signal", gtype, GLib.Signal.Flags.RunLast, GLib.GType.None, new GLib.GType [0], ActivateMarshalCallback);
OverrideClassStruct(gtype, klass);
}
static uint RegisterSignal (string signal_name, GLib.GType gtype, GLib.Signal.Flags signal_flags, GLib.GType return_type, GLib.GType[] param_types, ClosureMarshal marshaler)
{
IntPtr[] native_param_types = new IntPtr [param_types.Length];
for (int parm_idx = 0; parm_idx < param_types.Length; parm_idx++)
native_param_types [parm_idx] = param_types [parm_idx].Val;
IntPtr native_signal_name = GLib.Marshaller.StringToPtrGStrdup (signal_name);
try {
return g_signal_newv (native_signal_name, gtype.Val, signal_flags, CreateClosure (marshaler), IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, return_type.Val, (uint) param_types.Length, native_param_types);
} finally {
GLib.Marshaller.Free (native_signal_name);
}
}
static void ConnectActivate(GLib.GType gtype)
{
if (ActivateMarshalCallback == null)
{
ActivateMarshalCallback = new ClosureMarshal(ActivateMarshal_cb);
}
unsafe {
uint *raw_ptr = (uint *)(((long)gtype.GetClassPtr()) + (long)class_abi.GetFieldOffset("activate_signal"));
*raw_ptr = RegisterSignal("activate_signal", gtype, GLib.Signal.Flags.RunLast, GLib.GType.None,
new GLib.GType [0], ActivateMarshalCallback);
}
}
public Closure(SignalHandler <TArgs> callback, GLib.Object obj, string signal_name)
{
this.obj = obj;
this.callback = callback;
this.signal_name = signal_name;
this.marshaller = new ClosureMarshal(SignalMarshaller);
IntPtr raw_closure = g_closure_new_simple(Marshal.SizeOf(typeof(GClosure)), IntPtr.Zero);
g_closure_set_marshal(raw_closure, marshaller);
g_signal_connect_closure(obj.Handle, Utils.StringToPtrGStrdup(signal_name), raw_closure, false);
ClosureTable[raw_closure] = this;
// Value[] values = GetValues();
// Do we want to populate args here or in signal_marshaller?
// Perhaps marshaller is better
// TODO: Perf profiling
}
static extern void g_closure_set_marshal (IntPtr closure, ClosureMarshal marshaler);
static uint RegisterSignal(string signal_name, GLib.GType gtype, GLib.Signal.Flags signal_flags, GLib.GType return_type, GLib.GType[] param_types, ClosureMarshal marshaler)
{
IntPtr[] native_param_types = new IntPtr [param_types.Length];
for (int parm_idx = 0; parm_idx < param_types.Length; parm_idx++)
{
native_param_types [parm_idx] = param_types [parm_idx].Val;
}
IntPtr native_signal_name = GLib.Marshaller.StringToPtrGStrdup(signal_name);
try {
return(g_signal_newv(native_signal_name, gtype.Val, signal_flags, CreateClosure(marshaler), IntPtr.Zero, IntPtr.Zero, IntPtr.Zero, return_type.Val, (uint)param_types.Length, native_param_types));
} finally {
GLib.Marshaller.Free(native_signal_name);
}
}
static extern void g_closure_set_marshal(IntPtr closure, ClosureMarshal marshaler);
public static ValueTuple <UnmanagedClosureMarshal, UnmanagedClosureNotify, IntPtr> CreateNotifyDelegate(ClosureMarshal closureMarshal)
{
if (closureMarshal == null)
{
throw new ArgumentNullException(nameof(closureMarshal));
}
var userData = new UnmanagedClosureMarshalData {
ClosureMarshal = closureMarshal,
UnmanagedClosureMarshal = UnmanagedClosureMarshal,
UnmanagedClosureNotify = UnmanagedClosureNotify,
};
var userData_ = GCHandle.Alloc(userData);
return(userData.UnmanagedClosureMarshal, userData.UnmanagedClosureNotify, (IntPtr)userData_);
}
static IntPtr CreateClosure (ClosureMarshal marshaler) {
IntPtr raw_closure = g_closure_new_simple (Marshal.SizeOf (typeof (GClosure)), IntPtr.Zero);
g_closure_set_marshal (raw_closure, marshaler);
return raw_closure;
}
static void ConnectActivate (GLib.GType gtype)
{
if (ActivateMarshalCallback == null)
ActivateMarshalCallback = new ClosureMarshal (ActivateMarshal_cb);
GtkWidgetClass klass = GetClassStruct (gtype, false);
klass.ActivateSignal = RegisterSignal ("activate_signal", gtype, GLib.Signal.Flags.RunLast, GLib.GType.None, new GLib.GType [0], ActivateMarshalCallback);
OverrideClassStruct (gtype, klass);
}
static extern IntPtr glibsharp_closure_new (ClosureMarshal marshaler, ClosureNotify notify, IntPtr gch);
static extern IntPtr glibsharp_closure_new(ClosureMarshal marshaler, ClosureNotify notify, IntPtr gch);