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 49
