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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimppickbutton-xdg.c
* Copyright (C) 2021 Niels De Graef <nielsdegraef@gmail.com>
*
* 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
* Library 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
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif
#include "libgimpcolor/gimpcolor.h"
#include "gimpwidgetstypes.h"
#include "gimppickbutton.h"
#include "gimppickbutton-xdg.h"
#include "libgimp/libgimp-intl.h"
#include "libgimp/gimpui.h"
gboolean
_gimp_pick_button_xdg_available (void)
{
gboolean ret = TRUE;
GDBusProxy *proxy = NULL;
GVariant *version = NULL;
proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
NULL,
"org.freedesktop.portal.Desktop",
"/org/freedesktop/portal/desktop",
"org.freedesktop.portal.Screenshot",
NULL, NULL);
if (proxy == NULL)
{
ret = FALSE;
goto out;
}
/* Finally, PickColor is only available starting V2 of the portal */
version = g_dbus_proxy_get_cached_property (proxy, "version");
if (version == NULL)
{
ret = FALSE;
goto out;
}
if (g_variant_get_uint32 (version) < 2)
{
ret = FALSE;
goto out;
}
out:
g_clear_pointer (&version, g_variant_unref);
g_clear_object (&proxy);
return ret;
}
static void
pick_color_xdg_dbus_signal (GDBusProxy *proxy,
gchar *sender_name,
gchar *signal_name,
GVariant *parameters,
GimpPickButton *button)
{
if (g_strcmp0 (signal_name, "Response") == 0)
{
GVariant *results;
guint32 response;
g_variant_get (parameters, "(u@a{sv})",
&response,
&results);
/* Possible values:
* 0: Success, the request is carried out
* 1: The user cancelled the interaction
* 2: The user interaction was ended in some other way
* Cf. https://github.com/flatpak/xdg-desktop-portal/blob/master/data/org.freedesktop.portal.Request.xml
*/
if (response == 0)
{
GeglColor *color = gegl_color_new ("none");
gdouble rgba[4] = {0.0, 0.0, 0.0, 1.0};
if (g_variant_lookup (results, "color", "(ddd)", &rgba[0], &rgba[1], &rgba[2]))
{
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"), rgba);
g_signal_emit_by_name (button, "color-picked", color);
g_object_unref (color);
}
}
g_variant_unref (results);
/* Quit anyway. */
gtk_main_quit ();
}
}
/* entry point to this file, called from gimppickbutton.c */
void
_gimp_pick_button_xdg_pick (GimpPickButton *button)
{
GDBusProxy *proxy = NULL;
GVariant *retval = NULL;
gchar *opath = NULL;
gchar *parent_window = NULL;
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY (gdk_display_get_default ()))
{
GdkWindow *window;
window = gtk_widget_get_window (GTK_WIDGET (button));
if (window)
{
gint id;
id = GDK_WINDOW_XID (window);
parent_window = g_strdup_printf ("x11:0x%x", id);
}
}
#endif
proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
NULL,
"org.freedesktop.portal.Desktop",
"/org/freedesktop/portal/desktop",
"org.freedesktop.portal.Screenshot",
NULL, NULL);
if (!proxy)
{
return;
}
retval = g_dbus_proxy_call_sync (proxy, "PickColor",
g_variant_new ("(sa{sv})", parent_window ? parent_window : "", NULL),
G_DBUS_CALL_FLAGS_NONE,
-1, NULL, NULL);
g_free (parent_window);
g_clear_object (&proxy);
if (retval)
{
g_variant_get (retval, "(o)", &opath);
g_variant_unref (retval);
}
if (opath)
{
GDBusProxy *proxy2 = NULL;
proxy2 = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
NULL,
"org.freedesktop.portal.Desktop",
opath,
"org.freedesktop.portal.Request",
NULL, NULL);
g_signal_connect (proxy2, "g-signal",
G_CALLBACK (pick_color_xdg_dbus_signal),
button);
gtk_main ();
g_object_unref (proxy2);
g_free (opath);
}
}
|
