Add a kwin color picker
This uses the org.kde.kwin.ColorPicker interface.
This commit is contained in:
Matthias Clasen
187
gtk/gtkcolorpickerkwin.c
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187
gtk/gtkcolorpickerkwin.c
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/* GTK - The GIMP Toolkit
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* Copyright (C) 2018, Red Hat, Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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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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* Lesser 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 <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gtkcolorpickerkwinprivate.h"
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#include <gio/gio.h>
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struct _GtkColorPickerKwin
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{
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GObject parent_instance;
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GDBusProxy *kwin_proxy;
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GTask *task;
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};
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struct _GtkColorPickerKwinClass
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{
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GObjectClass parent_class;
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};
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static GInitableIface *initable_parent_iface;
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static void gtk_color_picker_kwin_initable_iface_init (GInitableIface *iface);
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static void gtk_color_picker_kwin_iface_init (GtkColorPickerInterface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkColorPickerKwin, gtk_color_picker_kwin, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, gtk_color_picker_kwin_initable_iface_init)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_COLOR_PICKER, gtk_color_picker_kwin_iface_init))
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static gboolean
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gtk_color_picker_kwin_initable_init (GInitable *initable,
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GCancellable *cancellable,
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GError **error)
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{
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GtkColorPickerKwin *picker = GTK_COLOR_PICKER_KWIN (initable);
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char *owner;
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picker->kwin_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
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G_DBUS_PROXY_FLAGS_NONE,
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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,
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error);
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if (picker->kwin_proxy == NULL)
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{
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g_debug ("Failed to create kwin colorpicker proxy");
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return FALSE;
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}
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owner = g_dbus_proxy_get_name_owner (picker->kwin_proxy);
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if (owner == NULL)
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{
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g_debug ("org.kde.kwin.ColorPicker not provided");
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g_clear_object (&picker->kwin_proxy);
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return FALSE;
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}
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g_free (owner);
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return TRUE;
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}
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static void
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gtk_color_picker_kwin_initable_iface_init (GInitableIface *iface)
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{
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initable_parent_iface = g_type_interface_peek_parent (iface);
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iface->init = gtk_color_picker_kwin_initable_init;
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}
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static void
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gtk_color_picker_kwin_init (GtkColorPickerKwin *picker)
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{
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}
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static void
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gtk_color_picker_kwin_finalize (GObject *object)
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{
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GtkColorPickerKwin *picker = GTK_COLOR_PICKER_KWIN (object);
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g_clear_object (&picker->kwin_proxy);
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G_OBJECT_CLASS (gtk_color_picker_kwin_parent_class)->finalize (object);
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}
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static void
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gtk_color_picker_kwin_class_init (GtkColorPickerKwinClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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object_class->finalize = gtk_color_picker_kwin_finalize;
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}
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GtkColorPicker *
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gtk_color_picker_kwin_new (void)
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{
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return GTK_COLOR_PICKER (g_initable_new (GTK_TYPE_COLOR_PICKER_KWIN, NULL, NULL, NULL));
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}
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static void
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color_picked (GObject *source,
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GAsyncResult *res,
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gpointer data)
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{
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GtkColorPickerKwin *picker = GTK_COLOR_PICKER_KWIN (data);
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GError *error = NULL;
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GVariant *ret;
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ret = g_dbus_proxy_call_finish (picker->kwin_proxy, res, &error);
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if (ret == NULL)
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{
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g_task_return_error (picker->task, error);
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}
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else
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{
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GdkRGBA c;
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guint32 color;
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g_variant_get (ret, "(u)", &color);
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c.blue = ( color & 0xff) / 255.0;
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c.green = ((color >> 8) & 0xff) / 255.0;
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c.red = ((color >> 16) & 0xff) / 255.0;
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c.alpha = ((color >> 24) & 0xff) / 255.0;
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g_task_return_pointer (picker->task, gdk_rgba_copy (&c), (GDestroyNotify)gdk_rgba_free);
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g_variant_unref (ret);
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}
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g_clear_object (&picker->task);
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}
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static void
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gtk_color_picker_kwin_pick (GtkColorPicker *cp,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GtkColorPickerKwin *picker = GTK_COLOR_PICKER_KWIN (cp);
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if (picker->task)
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return;
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picker->task = g_task_new (picker, NULL, callback, user_data);
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g_dbus_proxy_call (picker->kwin_proxy,
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"pick",
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NULL,
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0,
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-1,
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NULL,
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color_picked,
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picker);
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}
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static GdkRGBA *
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gtk_color_picker_kwin_pick_finish (GtkColorPicker *cp,
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GAsyncResult *res,
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GError **error)
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{
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g_return_val_if_fail (g_task_is_valid (res, cp), NULL);
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return g_task_propagate_pointer (G_TASK (res), error);
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}
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static void
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gtk_color_picker_kwin_iface_init (GtkColorPickerInterface *iface)
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{
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iface->pick = gtk_color_picker_kwin_pick;
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iface->pick_finish = gtk_color_picker_kwin_pick_finish;
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}
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