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![Mike Kestner](/assets/img/avatar_default.png)
* gtk/Object.custom (Destroy): add a null check to avoid Gtk criticals. The destroy case seems to be problematic with a bunch of existing code, so this turns it into a noop. svn path=/trunk/gtk-sharp/; revision=85657
145 lines
3.9 KiB
Plaintext
Executable File
145 lines
3.9 KiB
Plaintext
Executable File
// Gtk.Object.custom - Gtk Object class customizations
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//
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// Author: Mike Kestner <mkestner@novell.com>
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//
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// Copyright (c) 2002-2003 Mike Kestner
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// Copyright (c) 2007 Novell, Inc.
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//
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// This code is inserted after the automatically generated code.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the Lesser GNU General
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// Public License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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static Hashtable destroy_handlers;
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static Hashtable DestroyHandlers {
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get {
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if (destroy_handlers == null)
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destroy_handlers = new Hashtable ();
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return destroy_handlers;
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}
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}
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private static void OverrideDestroyed (GLib.GType gtype)
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{
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// Do Nothing. We don't want to hook into the native vtable.
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// We will manually invoke the VM on signal invocation. The signal
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// always raises before the default handler because this signal
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// is RUN_CLEANUP.
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}
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[GLib.DefaultSignalHandler(Type=typeof(Gtk.Object), ConnectionMethod="OverrideDestroyed")]
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protected virtual void OnDestroyed ()
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{
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if (DestroyHandlers [Handle] == null)
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return;
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EventHandler handler = (EventHandler) DestroyHandlers [Handle];
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handler (this, EventArgs.Empty);
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DestroyHandlers [Handle] = null;
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Dispose ();
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}
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[GLib.Signal("destroy")]
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public event EventHandler Destroyed {
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add {
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EventHandler handler = (EventHandler) DestroyHandlers [Handle];
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DestroyHandlers [Handle] = Delegate.Combine (handler, value);
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}
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remove {
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EventHandler handler = (EventHandler) DestroyHandlers [Handle];
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DestroyHandlers [Handle] = Delegate.Remove (handler, value);
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}
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}
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event EventHandler InternalDestroyed {
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add {
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GLib.Signal sig = GLib.Signal.Lookup (this, "destroy");
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sig.AddDelegate (value);
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}
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remove {
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GLib.Signal sig = GLib.Signal.Lookup (this, "destroy");
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sig.RemoveDelegate (value);
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}
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}
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static void NativeDestroy (object o, EventArgs args)
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{
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Gtk.Object obj = o as Gtk.Object;
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if (obj == null)
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return;
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obj.OnDestroyed ();
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}
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static EventHandler native_destroy_handler;
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static EventHandler NativeDestroyHandler {
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get {
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if (native_destroy_handler == null)
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native_destroy_handler = new EventHandler (NativeDestroy);
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return native_destroy_handler;
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}
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}
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protected override void CreateNativeObject (string[] names, GLib.Value[] vals)
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{
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base.CreateNativeObject (names, vals);
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}
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public override void Dispose ()
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{
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InternalDestroyed -= NativeDestroyHandler;
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base.Dispose ();
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}
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[DllImport("libgobject-2.0-0.dll")]
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private static extern void g_object_ref_sink (IntPtr raw);
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protected override IntPtr Raw {
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get {
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return base.Raw;
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}
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set {
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base.Raw = value;
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if (value == IntPtr.Zero)
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return;
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g_object_ref_sink (value);
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InternalDestroyed += NativeDestroyHandler;
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}
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}
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[DllImport("libgtk-win32-2.0-0.dll")]
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private static extern void gtk_object_destroy (IntPtr raw);
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public virtual void Destroy ()
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{
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if (Handle != IntPtr.Zero)
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gtk_object_destroy (Handle);
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}
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[DllImport("gtksharpglue-2")]
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private static extern bool gtksharp_object_is_floating (IntPtr raw);
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[DllImport("gtksharpglue-2")]
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private static extern bool gtksharp_object_set_floating (IntPtr raw, bool val);
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public bool IsFloating {
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get {
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return gtksharp_object_is_floating (Handle);
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}
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set {
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gtksharp_object_set_floating (Handle, value);
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}
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}
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