mirror of
https://github.com/Ryujinx/GtkSharp.git
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2007-02-16 Mike Kestner <mkestner@novell.com>
* glib/Object.cs : switch to ToggleRefs for all items created with CreateNativeObject. This gets all managed subclasses, with a little overhang into simple wrappers. * glib/ToggleRef.cs : new class to manage the weak to strong ref transitions as a native object flips between shared and unshared ownership. * gtk/Object.custom : revamp of the Destroyed signal handling. * gtk/Gtk.metadata : hide destroy signal so we can deal with it manually. [Fixes the reopen note of #72018.] svn path=/trunk/gtk-sharp/; revision=73023
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12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2007-02-16 Mike Kestner <mkestner@novell.com>
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* glib/Object.cs : switch to ToggleRefs for all items created with
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CreateNativeObject. This gets all managed subclasses, with a little
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overhang into simple wrappers.
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* glib/ToggleRef.cs : new class to manage the weak to strong ref
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transitions as a native object flips between shared and unshared
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ownership.
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* gtk/Object.custom : revamp of the Destroyed signal handling.
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* gtk/Gtk.metadata : hide destroy signal so we can deal with it
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manually. [Fixes the reopen note of #72018.]
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2007-02-03 Mike Kestner <mkestner@novell.com>
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* gtk/StatusIcon.custom : obsolete overload for backcompat on
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@ -55,6 +55,7 @@ sources = \
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Source.cs \
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Thread.cs \
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Timeout.cs \
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ToggleRef.cs \
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TypeConverter.cs \
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TypeFundamentals.cs \
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UnwrappedObject.cs \
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@ -63,7 +63,11 @@ namespace GLib {
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continue;
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try {
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g_object_unref (o._obj);
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ToggleRef toggle_ref = Objects [o._obj] as ToggleRef;
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if (toggle_ref == null)
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g_object_unref (o._obj);
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else
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toggle_ref.Free ();
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} catch (Exception e) {
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Console.WriteLine ("Exception while disposing a " + o + " in Gtk#");
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throw e;
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@ -101,13 +105,17 @@ namespace GLib {
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return null;
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Object obj = null;
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WeakReference weak_ref = Objects[o] as WeakReference;
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object reference = Objects[o];
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if (weak_ref != null && weak_ref.IsAlive)
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obj = weak_ref.Target as Object;
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if (obj == null)
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obj = Objects[o] as Object;
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if (reference is WeakReference) {
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WeakReference weak_ref = reference as WeakReference;
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if (weak_ref.IsAlive)
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obj = weak_ref.Target as Object;
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} else if (reference is ToggleRef) {
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ToggleRef toggle_ref = reference as ToggleRef;
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if (toggle_ref.IsAlive)
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obj = toggle_ref.Target;
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}
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if (obj != null && obj._obj == o) {
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lock (PendingDestroys)
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@ -247,7 +255,7 @@ namespace GLib {
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for (int i = 0; i < names.Length; i++)
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native_names [i] = GLib.Marshaller.StringToPtrGStrdup (names [i]);
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Raw = gtksharp_object_newv (LookupGType ().Val, names.Length, native_names, vals);
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Objects [_obj] = this;
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Objects [_obj] = new ToggleRef (this);
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foreach (IntPtr p in native_names)
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GLib.Marshaller.Free (p);
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}
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110
glib/ToggleRef.cs
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110
glib/ToggleRef.cs
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@ -0,0 +1,110 @@
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// GLib.ToggleRef.cs - GLib ToggleRef class implementation
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//
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// Author: Mike Kestner <mkestner@novell.com>
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//
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// Copyright <c> 2007 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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namespace GLib {
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using System;
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using System.Runtime.InteropServices;
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internal class ToggleRef {
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IntPtr handle;
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object reference;
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GCHandle gch;
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public ToggleRef (GLib.Object target)
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{
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handle = target.Handle;
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gch = GCHandle.Alloc (this);
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reference = target;
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g_object_add_toggle_ref (target.Handle, ToggleNotifyCallback, (IntPtr) gch);
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g_object_unref (target.Handle);
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}
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public bool IsAlive {
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get {
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if (reference is WeakReference) {
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WeakReference weak = reference as WeakReference;
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return weak.IsAlive;
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}
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return true;
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}
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}
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public GLib.Object Target {
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get {
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if (reference is GLib.Object)
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return reference as GLib.Object;
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WeakReference weak = reference as WeakReference;
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return weak.Target as GLib.Object;
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}
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}
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public void Free ()
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{
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g_object_remove_toggle_ref (handle, ToggleNotifyCallback, (IntPtr) gch);
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gch.Free ();
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}
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void Toggle (bool is_last_ref)
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{
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if (is_last_ref && reference is GLib.Object)
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reference = new WeakReference (reference);
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else if (!is_last_ref && reference is WeakReference) {
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WeakReference weak = reference as WeakReference;
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if (weak.IsAlive)
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reference = weak.Target;
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else
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throw new Exception ("Toggling dead object wrapper");
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}
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}
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[CDeclCallback]
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delegate void ToggleNotifyHandler (IntPtr data, IntPtr handle, bool is_last_ref);
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static void RefToggled (IntPtr data, IntPtr handle, bool is_last_ref)
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{
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GCHandle gch = (GCHandle) data;
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ToggleRef tref = gch.Target as ToggleRef;
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tref.Toggle (is_last_ref);
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}
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static ToggleNotifyHandler toggle_notify_callback;
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static ToggleNotifyHandler ToggleNotifyCallback {
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get {
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if (toggle_notify_callback == null)
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toggle_notify_callback = new ToggleNotifyHandler (RefToggled);
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return toggle_notify_callback;
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}
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}
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[DllImport("libgobject-2.0-0.dll")]
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static extern void g_object_add_toggle_ref (IntPtr raw, ToggleNotifyHandler notify_cb, IntPtr data);
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[DllImport("libgobject-2.0-0.dll")]
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static extern void g_object_remove_toggle_ref (IntPtr raw, ToggleNotifyHandler notify_cb, IntPtr data);
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[DllImport("libgobject-2.0-0.dll")]
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static extern void g_object_unref (IntPtr raw);
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}
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}
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@ -424,7 +424,7 @@
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<attr path="/api/namespace/object[@cname='GtkObject']/method[@name='SetDataByIdFull']/*/*[@name='destroy']" name="type">GtkDestroyNotify</attr>
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<attr path="/api/namespace/object[@cname='GtkObject']/method[@name='Weakref']/*/*[@name='notify']" name="type">GtkDestroyNotify</attr>
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<attr path="/api/namespace/object[@cname='GtkObject']/method[@name='Weakunref']/*/*[@name='notify']" name="type">GtkDestroyNotify</attr>
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<attr path="/api/namespace/object[@cname='GtkObject']/signal[@name='Destroy']" name="name">Destroyed</attr>
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<attr path="/api/namespace/object[@cname='GtkObject']/signal[@name='Destroy']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@cname='GtkPlug']/constructor[@cname='gtk_plug_new']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@cname='GtkPlug']/constructor[@cname='gtk_plug_new_for_display']" name="hidden">1</attr>
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<attr path="/api/namespace/object[@cname='GtkPrinter']/method[@name='AcceptsPdf']" name="name">GetAcceptsPdf</attr>
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@ -1,8 +1,9 @@
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// Gtk.Object.custom - Gtk Object class customizations
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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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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@ -20,25 +21,66 @@
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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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[DllImport("gtksharpglue-2")]
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private static extern bool gtksharp_object_is_floating (IntPtr raw);
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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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[DllImport("gtksharpglue-2")]
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private static extern bool gtksharp_object_set_floating (IntPtr raw, bool val);
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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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[DllImport("libgobject-2.0-0.dll")]
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private static extern void g_object_ref (IntPtr raw);
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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.Destroyed -= NativeDestroyHandler;
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obj.Dispose ();
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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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@ -51,15 +93,17 @@
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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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Destroyed += NativeDestroyHandler;
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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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Destroyed -= NativeDestroyHandler;
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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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@ -69,8 +113,8 @@
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if (value == IntPtr.Zero)
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return;
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g_object_ref (value);
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Sink ();
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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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@ -82,6 +126,12 @@
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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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