gnome-shell/subprojects/shew/src/shew-external-window.c
Florian Müllner 6baf490aab shew: Add small library for dealing with external windows
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
2020-03-26 18:32:30 +01:00

162 lines
4.9 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 <string.h>
#include "shew-external-window.h"
#include "shew-external-window-x11.h"
#include "shew-external-window-wayland.h"
enum
{
PROP_0,
PROP_DISPLAY,
};
typedef struct _ShewExternalWindowPrivate
{
GdkDisplay *display;
} ShewExternalWindowPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (ShewExternalWindow, shew_external_window, G_TYPE_OBJECT)
ShewExternalWindow *
shew_external_window_new_from_handle (const char *handle_str)
{
#ifdef GDK_WINDOWING_X11
{
const char x11_prefix[] = "x11:";
if (g_str_has_prefix (handle_str, x11_prefix))
{
ShewExternalWindowX11 *external_window_x11;
const char *x11_handle_str = handle_str + strlen (x11_prefix);
external_window_x11 = shew_external_window_x11_new (x11_handle_str);
return SHEW_EXTERNAL_WINDOW (external_window_x11);
}
}
#endif
#ifdef GDK_WINDOWING_WAYLAND
{
const char wayland_prefix[] = "wayland:";
if (g_str_has_prefix (handle_str, wayland_prefix))
{
ShewExternalWindowWayland *external_window_wayland;
const char *wayland_handle_str = handle_str + strlen (wayland_prefix);
external_window_wayland =
shew_external_window_wayland_new (wayland_handle_str);
return SHEW_EXTERNAL_WINDOW (external_window_wayland);
}
}
#endif
g_warning ("Unhandled parent window type %s\n", handle_str);
return NULL;
}
void
shew_external_window_set_parent_of (ShewExternalWindow *external_window,
GdkWindow *child_window)
{
SHEW_EXTERNAL_WINDOW_GET_CLASS (external_window)->set_parent_of (external_window,
child_window);
}
/**
* shew_external_window_get_display:
* Returns: (transfer none)
*/
GdkDisplay *
shew_external_window_get_display (ShewExternalWindow *external_window)
{
ShewExternalWindowPrivate *priv =
shew_external_window_get_instance_private (external_window);
return priv->display;
}
static void
shew_external_window_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ShewExternalWindow *external_window = SHEW_EXTERNAL_WINDOW (object);
ShewExternalWindowPrivate *priv =
shew_external_window_get_instance_private (external_window);
switch (prop_id)
{
case PROP_DISPLAY:
g_set_object (&priv->display, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
shew_external_window_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ShewExternalWindow *external_window = SHEW_EXTERNAL_WINDOW (object);
ShewExternalWindowPrivate *priv =
shew_external_window_get_instance_private (external_window);
switch (prop_id)
{
case PROP_DISPLAY:
g_value_set_object (value, priv->display);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
shew_external_window_init (ShewExternalWindow *external_window)
{
}
static void
shew_external_window_class_init (ShewExternalWindowClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = shew_external_window_get_property;
object_class->set_property = shew_external_window_set_property;
g_object_class_install_property (object_class,
PROP_DISPLAY,
g_param_spec_object ("display",
"GdkDisplay",
"The GdkDisplay instance",
GDK_TYPE_DISPLAY,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}