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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "ui/base/gtk/owned_widget_gtk.h" | |
6 | |
7 #include <gtk/gtk.h> | |
8 | |
9 #include "base/logging.h" | |
10 | |
11 #error "The GTK+ port will be deleted later this week. If you are seeing this, y
ou are trying to compile it. Please check your gyp flags for 'use_aura=0' and re
move them." | |
12 | |
13 namespace ui { | |
14 | |
15 OwnedWidgetGtk::~OwnedWidgetGtk() { | |
16 Destroy(); | |
17 } | |
18 | |
19 void OwnedWidgetGtk::Own(GtkWidget* widget) { | |
20 if (!widget) | |
21 return; | |
22 | |
23 DCHECK(!widget_); | |
24 // We want to make sure that Own() was called properly, right after the | |
25 // widget was created. There should be a floating reference. | |
26 DCHECK(g_object_is_floating(widget)); | |
27 | |
28 // Sink the floating reference, we should now own this reference. | |
29 g_object_ref_sink(widget); | |
30 widget_ = widget; | |
31 } | |
32 | |
33 void OwnedWidgetGtk::Destroy() { | |
34 if (!widget_) | |
35 return; | |
36 | |
37 GtkWidget* widget = widget_; | |
38 widget_ = NULL; | |
39 gtk_widget_destroy(widget); | |
40 | |
41 DCHECK(!g_object_is_floating(widget)); | |
42 // NOTE: Assumes some implementation details about glib internals. | |
43 DCHECK_EQ(G_OBJECT(widget)->ref_count, 1U); | |
44 g_object_unref(widget); | |
45 } | |
46 | |
47 } // namespace ui | |
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