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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/gtk_windowing.h" | |
6 | |
7 #include <gdk/gdkx.h> | |
8 | |
9 #include "base/logging.h" | |
10 #include "ui/base/x/x11_util.h" | |
11 #include "ui/gfx/gtk_compat.h" | |
12 | |
13 namespace ui { | |
14 | |
15 void StackPopupWindow(GtkWidget* popup, GtkWidget* toplevel) { | |
16 DCHECK(GTK_IS_WINDOW(popup) && gtk_widget_is_toplevel(popup) && | |
17 gtk_widget_get_realized(popup)); | |
18 DCHECK(GTK_IS_WINDOW(toplevel) && gtk_widget_is_toplevel(toplevel) && | |
19 gtk_widget_get_realized(toplevel)); | |
20 | |
21 // Stack the |popup| window directly above the |toplevel| window. | |
22 // The popup window is a direct child of the root window, so we need to | |
23 // find a similar ancestor for the toplevel window (which might have been | |
24 // reparented by a window manager). We grab the server while we're doing | |
25 // this -- otherwise, we'll get an error if the window manager reparents the | |
26 // toplevel window right after we call GetHighestAncestorWindow(). | |
27 gdk_x11_display_grab(gtk_widget_get_display(toplevel)); | |
28 XID toplevel_window_base = ui::GetHighestAncestorWindow( | |
29 ui::GetX11WindowFromGtkWidget(toplevel), | |
30 ui::GetX11RootWindow()); | |
31 if (toplevel_window_base) { | |
32 XID window_xid = ui::GetX11WindowFromGtkWidget(popup); | |
33 XID window_parent = ui::GetParentWindow(window_xid); | |
34 if (window_parent == ui::GetX11RootWindow()) { | |
35 ui::RestackWindow(window_xid, toplevel_window_base, true); | |
36 } else { | |
37 // The window manager shouldn't reparent override-redirect windows. | |
38 DLOG(ERROR) << "override-redirect window " << window_xid | |
39 << "'s parent is " << window_parent | |
40 << ", rather than root window " | |
41 << ui::GetX11RootWindow(); | |
42 } | |
43 } | |
44 gdk_x11_display_ungrab(gtk_widget_get_display(toplevel)); | |
45 } | |
46 | |
47 } // namespace ui | |
48 | |
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