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gtkwindow: Disable CSD if we aren't running under a supported WM

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Also, split the checks for CSD out into a separate function.

https://bugzilla.gnome.org/show_bug.cgi?id=706529
This commit is contained in:
Jasper St. Pierre 2013-08-21 15:08:08 -04:00
parent 7462de8fba
commit a2eafe2f57
1 changed files with 47 additions and 10 deletions
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57
gtk/gtkwindow.c
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@ -3472,6 +3472,50 @@ unset_titlebar (GtkWindow *window)
} }
} }
static gboolean
gdk_window_supports_csd (GtkWindow *window)
{
GtkWidget *widget = GTK_WIDGET (window);
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY (gtk_widget_get_display (widget)))
{
GdkScreen *screen;
GdkVisual *visual;
screen = gtk_widget_get_screen (widget);
if (!gdk_screen_is_composited (screen))
return FALSE;
if (!gdk_x11_screen_supports_net_wm_hint (screen, gdk_atom_intern_static_string ("_GTK_FRAME_EXTENTS")))
return FALSE;
/* We need a visual with alpha */
visual = gdk_screen_get_rgba_visual (screen);
if (!visual)
return FALSE;
}
#endif
return TRUE;
}
static void
gdk_window_enable_csd (GtkWindow *window)
{
GtkWindowPrivate *priv = window->priv;
GtkWidget *widget = GTK_WIDGET (window);
GdkVisual *visual;
/* We need a visual with alpha */
visual = gdk_screen_get_rgba_visual (gtk_widget_get_screen (widget));
g_assert (visual != NULL);
gtk_widget_set_visual (widget, visual);
priv->client_decorated = TRUE;
}
/** /**
* gtk_window_set_titlebar: * gtk_window_set_titlebar:
* @window: a #GtkWindow * @window: a #GtkWindow
@ -5266,17 +5310,10 @@ create_decoration (GtkWidget *widget)
GtkWindow *window = GTK_WINDOW (widget); GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = window->priv; GtkWindowPrivate *priv = window->priv;
#ifdef GDK_WINDOWING_X11 if (!gdk_window_supports_csd (window))
if (GDK_IS_X11_DISPLAY (gtk_widget_get_display (widget))) return;
{
GdkVisual *visual;
/* We need a visual with alpha */ gdk_window_enable_csd (window);
visual = gdk_screen_get_rgba_visual (gtk_widget_get_screen (widget));
if (visual)
gtk_widget_set_visual (widget, visual);
}
#endif
if (priv->title_box == NULL) if (priv->title_box == NULL)
{ {