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/* GTK - The GIMP Toolkit
* Copyright (C) 2018, Red Hat, Inc
*
* This library 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/>.
*/
#include "config.h"
#include "gtkcolorpickerportalprivate.h"
#include "gtkprivate.h"
#include <gio/gio.h>
struct _GtkColorPickerPortal
{
GObject parent_instance;
GDBusProxy *portal_proxy;
guint portal_signal_id;
GTask *task;
};
struct _GtkColorPickerPortalClass
{
GObjectClass parent_class;
};
static GInitableIface *initable_parent_iface;
static void gtk_color_picker_portal_initable_iface_init (GInitableIface *iface);
static void gtk_color_picker_portal_iface_init (GtkColorPickerInterface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkColorPickerPortal, gtk_color_picker_portal, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, gtk_color_picker_portal_initable_iface_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_COLOR_PICKER, gtk_color_picker_portal_iface_init))
static gboolean
gtk_color_picker_portal_initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (initable);
char *owner;
GVariant *ret;
guint version = 0;
picker->portal_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_NONE,
NULL,
PORTAL_BUS_NAME,
PORTAL_OBJECT_PATH,
PORTAL_SCREENSHOT_INTERFACE,
NULL,
error);
if (picker->portal_proxy == NULL)
{
g_debug ("Failed to create screenshot portal proxy");
return FALSE;
}
owner = g_dbus_proxy_get_name_owner (picker->portal_proxy);
if (owner == NULL)
{
g_debug ("%s not provided", PORTAL_SCREENSHOT_INTERFACE);
g_clear_object (&picker->portal_proxy);
return FALSE;
}
g_free (owner);
ret = g_dbus_proxy_get_cached_property (picker->portal_proxy, "version");
if (ret)
{
version = g_variant_get_uint32 (ret);
g_variant_unref (ret);
}
if (version != 2)
{
g_debug ("Screenshot portal version: %u", version);
g_clear_object (&picker->portal_proxy);
return FALSE;
}
return TRUE;
}
static void
gtk_color_picker_portal_initable_iface_init (GInitableIface *iface)
{
initable_parent_iface = g_type_interface_peek_parent (iface);
iface->init = gtk_color_picker_portal_initable_init;
}
static void
gtk_color_picker_portal_init (GtkColorPickerPortal *picker)
{
}
static void
gtk_color_picker_portal_finalize (GObject *object)
{
GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (object);
g_clear_object (&picker->portal_proxy);
G_OBJECT_CLASS (gtk_color_picker_portal_parent_class)->finalize (object);
}
static void
gtk_color_picker_portal_class_init (GtkColorPickerPortalClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
object_class->finalize = gtk_color_picker_portal_finalize;
}
GtkColorPicker *
gtk_color_picker_portal_new (void)
{
return GTK_COLOR_PICKER (g_initable_new (GTK_TYPE_COLOR_PICKER_PORTAL, NULL, NULL, NULL));
}
static void
portal_response_received (GDBusConnection *connection,
const char *sender_name,
const char *object_path,
const char *interface_name,
const char *signal_name,
GVariant *parameters,
gpointer user_data)
{
GtkColorPickerPortal *picker = user_data;
guint32 response;
GVariant *ret;
g_dbus_connection_signal_unsubscribe (connection, picker->portal_signal_id);
picker->portal_signal_id = 0;
g_variant_get (parameters, "(u@a{sv})", &response, &ret);
if (response == 0)
{
double d1, d2, d3;
if (g_variant_lookup (ret, "color", "(ddd)", &d1, &d2, &d3))
g_task_return_pointer (picker->task,
gdk_rgba_copy (&(GdkRGBA){d1, d2, d3, 1.0f}), (GDestroyNotify)gdk_rgba_free);
else
g_task_return_new_error (picker->task,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"No color received");
}
else
g_task_return_new_error (picker->task,
G_IO_ERROR,
G_IO_ERROR_FAILED,
"PickColor error");
g_variant_unref (ret);
g_clear_object (&picker->task);
}
static void
gtk_color_picker_portal_pick (GtkColorPicker *cp,
GAsyncReadyCallback callback,
gpointer user_data)
{
GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (cp);
GVariantBuilder options;
GDBusConnection *connection;
char *token;
char *handle;
if (picker->task)
return;
picker->task = g_task_new (picker, NULL, callback, user_data);
connection = g_dbus_proxy_get_connection (picker->portal_proxy);
handle = gtk_get_portal_request_path (connection, &token);
picker->portal_signal_id = g_dbus_connection_signal_subscribe (connection,
PORTAL_BUS_NAME,
PORTAL_REQUEST_INTERFACE,
"Response",
handle,
NULL,
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
portal_response_received,
picker,
NULL);
g_free (handle);
g_variant_builder_init (&options, G_VARIANT_TYPE_VARDICT);
g_variant_builder_add (&options, "{sv}", "handle_token", g_variant_new_string (token));
g_free (token);
g_dbus_proxy_call (picker->portal_proxy,
"PickColor",
g_variant_new ("(sa{sv})", "", &options),
0,
-1,
NULL,
NULL,
NULL);
}
static GdkRGBA *
gtk_color_picker_portal_pick_finish (GtkColorPicker *cp,
GAsyncResult *res,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (res, cp), NULL);
return g_task_propagate_pointer (G_TASK (res), error);
}
static void
gtk_color_picker_portal_iface_init (GtkColorPickerInterface *iface)
{
iface->pick = gtk_color_picker_portal_pick;
iface->pick_finish = gtk_color_picker_portal_pick_finish;
}
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