6baf490aab
In order to support OpenExtensionPrefs()'s parentWindow parameter, we will need the ability to make a window transient to an external window identified by a string handle. This takes the corresponding code from xdg-desktop-portal-gtk and brings it into an introspectable form, likewise the counterpart in libportal to export a string handle for a GtkWindow. https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1087
134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/*
|
|
* Copyright © 2016 Red Hat, Inc
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Authors:
|
|
* Jonas Ådahl <jadahl@redhat.com>
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <gdk/gdk.h>
|
|
#ifdef GDK_WINDOWING_X11
|
|
#include <gdk/gdkx.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
|
|
#include "shew-external-window-x11.h"
|
|
|
|
static GdkDisplay *x11_display;
|
|
|
|
struct _ShewExternalWindowX11
|
|
{
|
|
ShewExternalWindow parent;
|
|
|
|
GdkWindow *foreign_gdk_window;
|
|
};
|
|
|
|
G_DEFINE_TYPE (ShewExternalWindowX11, shew_external_window_x11,
|
|
SHEW_TYPE_EXTERNAL_WINDOW)
|
|
|
|
static GdkDisplay *
|
|
get_x11_display (void)
|
|
{
|
|
if (x11_display)
|
|
return x11_display;
|
|
|
|
gdk_set_allowed_backends ("x11");
|
|
x11_display = gdk_display_open (NULL);
|
|
gdk_set_allowed_backends (NULL);
|
|
if (!x11_display)
|
|
g_warning ("Failed to open X11 display");
|
|
|
|
return x11_display;
|
|
}
|
|
|
|
ShewExternalWindowX11 *
|
|
shew_external_window_x11_new (const char *handle_str)
|
|
{
|
|
ShewExternalWindowX11 *external_window_x11;
|
|
GdkDisplay *display;
|
|
int xid;
|
|
GdkWindow *foreign_gdk_window = NULL;
|
|
|
|
display = get_x11_display ();
|
|
if (!display)
|
|
{
|
|
g_warning ("No X display connection, ignoring X11 parent");
|
|
return NULL;
|
|
}
|
|
|
|
errno = 0;
|
|
xid = strtol (handle_str, NULL, 16);
|
|
if (errno != 0)
|
|
{
|
|
g_warning ("Failed to reference external X11 window, invalid XID %s", handle_str);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef GDK_WINDOWING_X11
|
|
foreign_gdk_window = gdk_x11_window_foreign_new_for_display (display, xid);
|
|
#endif
|
|
|
|
if (!foreign_gdk_window)
|
|
{
|
|
g_warning ("Failed to create foreign window for XID %d", xid);
|
|
return NULL;
|
|
}
|
|
|
|
external_window_x11 = g_object_new (SHEW_TYPE_EXTERNAL_WINDOW_X11,
|
|
"display", display,
|
|
NULL);
|
|
external_window_x11->foreign_gdk_window = foreign_gdk_window;
|
|
|
|
return external_window_x11;
|
|
}
|
|
|
|
static void
|
|
shew_external_window_x11_set_parent_of (ShewExternalWindow *external_window,
|
|
GdkWindow *child_window)
|
|
{
|
|
ShewExternalWindowX11 *external_window_x11 =
|
|
SHEW_EXTERNAL_WINDOW_X11 (external_window);
|
|
|
|
gdk_window_set_transient_for (child_window,
|
|
external_window_x11->foreign_gdk_window);
|
|
}
|
|
|
|
static void
|
|
shew_external_window_x11_dispose (GObject *object)
|
|
{
|
|
ShewExternalWindowX11 *external_window_x11 = SHEW_EXTERNAL_WINDOW_X11 (object);
|
|
|
|
g_clear_object (&external_window_x11->foreign_gdk_window);
|
|
|
|
G_OBJECT_CLASS (shew_external_window_x11_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
shew_external_window_x11_init (ShewExternalWindowX11 *external_window_x11)
|
|
{
|
|
}
|
|
|
|
static void
|
|
shew_external_window_x11_class_init (ShewExternalWindowX11Class *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
ShewExternalWindowClass *external_window_class = SHEW_EXTERNAL_WINDOW_CLASS (klass);
|
|
|
|
object_class->dispose = shew_external_window_x11_dispose;
|
|
|
|
external_window_class->set_parent_of = shew_external_window_x11_set_parent_of;
|
|
}
|