113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
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/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* pikapickbutton-kwin.c
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* Copyright (C) 2017 Jehan <jehan@gimp.org>
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libpikacolor/pikacolor.h"
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#include "pikawidgetstypes.h"
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#include "pikapickbutton.h"
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#include "pikapickbutton-default.h"
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#include "pikapickbutton-kwin.h"
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#include "libpika/libpika-intl.h"
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gboolean
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_pika_pick_button_kwin_available (void)
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{
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GDBusProxy *proxy = NULL;
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gboolean available = FALSE;
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proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
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G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
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NULL,
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"org.kde.KWin",
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"/ColorPicker",
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"org.kde.kwin.ColorPicker",
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NULL, NULL);
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if (proxy)
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{
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GError *error = NULL;
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g_dbus_proxy_call_sync (proxy, "org.freedesktop.DBus.Peer.Ping",
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NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1, NULL, &error);
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if (! error)
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available = TRUE;
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g_clear_error (&error);
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g_object_unref (proxy);
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}
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return available;
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}
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/* entry point to this file, called from pikapickbutton.c */
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void
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_pika_pick_button_kwin_pick (PikaPickButton *button)
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{
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GDBusProxy *proxy = NULL;
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GError *error = NULL;
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GVariant *retval;
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proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
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G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
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NULL,
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"org.kde.KWin",
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"/ColorPicker",
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"org.kde.kwin.ColorPicker",
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NULL, NULL);
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g_return_if_fail (proxy);
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retval = g_dbus_proxy_call_sync (proxy, "pick", NULL,
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G_DBUS_CALL_FLAGS_NONE,
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-1, NULL, &error);
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if (retval)
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{
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PikaRGB rgb;
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guint32 color;
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g_variant_get (retval, "((u))", &color);
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g_variant_unref (retval);
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/* Returned value is ARGB stored in uint32. */
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pika_rgba_set_uchar (&rgb,
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(color >> 16 ) & 0xff, /* Red */
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(color >> 8) & 0xff, /* Green */
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color & 0xff, /* Blue: least significant byte. */
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(color >> 24) & 0xff); /* Alpha: most significant byte. */
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g_signal_emit_by_name (button, "color-picked", &rgb);
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}
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else
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{
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/* I had failure of KDE's color picking API. So let's just
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* fallback to the default color picking when this happens. This
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* will at least work on X11.
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* See: https://bugs.kde.org/show_bug.cgi?id=387720
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*/
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if (error)
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g_warning ("KWin backend for color picking failed with error: %s",
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error->message);
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_pika_pick_button_default_pick (PIKA_PICK_BUTTON (button));
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}
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g_clear_error (&error);
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g_object_unref (proxy);
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}
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