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fd01afc12b
* glib/Signal.cs : guard against NULL gchandles. * gdk/Input.custom : add try/catch blocks to native callbacks. * gtk/*.custom : ditto * gtk/NodeStore.cs : ditto svn path=/trunk/gtk-sharp/; revision=74004
95 lines
3.1 KiB
Plaintext
95 lines
3.1 KiB
Plaintext
// Gtk.Input.custom - Gtk Input 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) 2005 Novell, Inc.
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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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[DllImport("libgtk-win32-2.0-0.dll")]
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static extern uint gtk_input_add_full(int source, int condition, InputFunctionNative function, GtkSharp.CallbackMarshalNative marshal, IntPtr data, GLib.DestroyNotify destroy);
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[GLib.CDeclCallback]
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delegate void InputFunctionNative(IntPtr data, int source, int condition);
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class InputFunctionWrapper {
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public void NativeCallback (IntPtr data, int source, int condition)
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{
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try {
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IntPtr _arg0 = data;
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int _arg1 = source;
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Gdk.InputCondition _arg2 = (Gdk.InputCondition) condition;
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managed ( _arg0, _arg1, _arg2);
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} catch (Exception e) {
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GLib.ExceptionManager.RaiseUnhandledException (e, false);
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}
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}
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internal InputFunctionNative NativeDelegate;
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Gdk.InputFunction managed;
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public InputFunctionWrapper (Gdk.InputFunction managed)
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{
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this.managed = managed;
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if (managed != null)
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NativeDelegate = new InputFunctionNative (NativeCallback);
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}
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}
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class InputProxy {
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InputFunctionWrapper function;
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GtkSharp.CallbackMarshalWrapper marshal;
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IntPtr data;
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DestroyNotify destroy;
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GLib.DestroyNotify handler;
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public InputProxy (InputFunctionWrapper function, GtkSharp.CallbackMarshalWrapper marshal, IntPtr data, DestroyNotify destroy)
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{
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this.marshal = marshal;
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this.function = function;
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this.destroy = destroy;
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this.data = data;
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handler = new GLib.DestroyNotify (OnDestroy);
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}
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void OnDestroy (IntPtr data)
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{
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if (destroy != null)
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destroy ();
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GCHandle gch = (GCHandle) data;
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gch.Free ();
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}
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public GLib.DestroyNotify Handler {
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get {
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return handler;
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}
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}
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}
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[Obsolete]
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public static uint AddFull(int source, Gdk.InputCondition condition, Gdk.InputFunction function, Gtk.CallbackMarshal marshal, IntPtr data, Gtk.DestroyNotify destroy) {
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InputFunctionWrapper function_wrapper = new InputFunctionWrapper (function);
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GtkSharp.CallbackMarshalWrapper marshal_wrapper = new GtkSharp.CallbackMarshalWrapper (marshal);
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InputProxy proxy = new InputProxy (function_wrapper, marshal_wrapper, data, destroy);
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GCHandle gch = GCHandle.Alloc (proxy);
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return gtk_input_add_full (source, (int) condition, function_wrapper.NativeDelegate, marshal_wrapper.NativeDelegate, (IntPtr) gch, proxy.Handler);
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}
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