mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2025-01-10 12:40:10 +00:00
Add a color picker implementation for portals
This adds a GtkColorPicker implementation that talks to the screnshot portal to get a color.
This commit is contained in:
Matthias Clasen
parent
6b3272e4b0
commit
740fc3eeff
@ -399,6 +399,7 @@ gtk_private_h_sources = \
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gtkcolorswatchprivate.h \
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gtkcoloreditorprivate.h \
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gtkcolorpickerprivate.h \
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gtkcolorpickerportalprivate.h \
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gtkcolorplaneprivate.h \
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gtkcolorscaleprivate.h \
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gtkcolorchooserprivate.h \
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@ -677,6 +678,7 @@ gtk_base_c_sources = \
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gtkcolorchooserdialog.c \
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gtkcoloreditor.c \
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gtkcolorpicker.c \
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gtkcolorpickerportal.c \
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gtkcolorplane.c \
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gtkcolorscale.c \
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gtkcolorswatch.c \
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@ -18,6 +18,8 @@
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#include "config.h"
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#include "gtkcolorpickerprivate.h"
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#include "gtkcolorpickerportalprivate.h"
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#include "gtkprivate.h"
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#include <gio/gio.h>
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@ -48,6 +50,9 @@ gtk_color_picker_pick_finish (GtkColorPicker *picker,
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GtkColorPicker *
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gtk_color_picker_new (void)
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{
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return NULL;
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if (gtk_should_use_portal ())
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return gtk_color_picker_portal_new ();
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else
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return NULL;
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}
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240
gtk/gtkcolorpickerportal.c
Normal file
240
gtk/gtkcolorpickerportal.c
Normal file
@ -0,0 +1,240 @@
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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 "gtkcolorpickerportalprivate.h"
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#include <gio/gio.h>
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struct _GtkColorPickerPortal
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{
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GObject parent_instance;
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GDBusProxy *portal_proxy;
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guint portal_signal_id;
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GTask *task;
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};
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struct _GtkColorPickerPortalClass
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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_portal_initable_iface_init (GInitableIface *iface);
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static void gtk_color_picker_portal_iface_init (GtkColorPickerInterface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkColorPickerPortal, gtk_color_picker_portal, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, gtk_color_picker_portal_initable_iface_init)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_COLOR_PICKER, gtk_color_picker_portal_iface_init))
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static gboolean
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gtk_color_picker_portal_initable_init (GInitable *initable,
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GCancellable *cancellable,
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GError **error)
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{
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GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (initable);
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char *owner;
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GVariant *ret;
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guint version;
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picker->portal_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.freedesktop.portal.Desktop",
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"/org/freedesktop/portal/desktop",
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"org.freedesktop.portal.Screenshot",
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NULL,
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error);
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if (picker->portal_proxy == NULL)
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{
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g_debug ("Failed to create screnshot portal proxy");
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return FALSE;
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}
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owner = g_dbus_proxy_get_name_owner (picker->portal_proxy);
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if (owner == NULL)
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{
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g_debug ("org.freedesktop.portal.Screenshot not provided");
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g_clear_object (&picker->portal_proxy);
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return FALSE;
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}
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g_free (owner);
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ret = g_dbus_proxy_get_cached_property (picker->portal_proxy, "version");
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g_variant_get (ret, "u", &version);
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g_variant_unref (ret);
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if (version != 2)
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{
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g_debug ("Screenshot portal version: %u", version);
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g_clear_object (&picker->portal_proxy);
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return FALSE;
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}
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return TRUE;
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}
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static void
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gtk_color_picker_portal_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_portal_initable_init;
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}
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static void
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gtk_color_picker_portal_init (GtkColorPickerPortal *picker)
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{
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}
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static void
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gtk_color_picker_portal_finalize (GObject *object)
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{
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GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (object);
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g_clear_object (&picker->portal_proxy);
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G_OBJECT_CLASS (gtk_color_picker_portal_parent_class)->finalize (object);
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}
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static void
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gtk_color_picker_portal_class_init (GtkColorPickerPortalClass *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_portal_finalize;
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}
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GtkColorPicker *
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gtk_color_picker_portal_new (void)
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{
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return GTK_COLOR_PICKER (g_initable_new (GTK_TYPE_COLOR_PICKER_PORTAL, NULL, NULL, NULL));
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}
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static void
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portal_response_received (GDBusConnection *connection,
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const char *sender_name,
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const char *object_path,
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const char *interface_name,
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const char *signal_name,
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GVariant *parameters,
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gpointer user_data)
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{
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GtkColorPickerPortal *picker = user_data;
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guint32 response;
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GVariant *ret;
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g_dbus_connection_signal_unsubscribe (connection, picker->portal_signal_id);
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picker->portal_signal_id = 0;
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g_variant_get (parameters, "(u@a{sv})", &response, &ret);
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if (response == 0)
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{
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GdkRGBA c;
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c.alpha = 1.0;
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if (g_variant_lookup (ret, "color", "(ddd)", &c.red, &c.green, &c.blue))
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g_task_return_pointer (picker->task, gdk_rgba_copy (&c), (GDestroyNotify)gdk_rgba_free);
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else
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g_task_return_new_error (picker->task,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"No color received");
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}
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else
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g_task_return_new_error (picker->task,
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G_IO_ERROR,
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G_IO_ERROR_FAILED,
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"PickColor error");
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g_variant_unref (ret);
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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_portal_pick (GtkColorPicker *cp,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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GtkColorPickerPortal *picker = GTK_COLOR_PICKER_PORTAL (cp);
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GVariantBuilder options;
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char *token;
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GDBusConnection *connection;
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char *sender;
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char *handle;
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int i;
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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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connection = g_dbus_proxy_get_connection (picker->portal_proxy);
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token = g_strdup_printf ("gtk%d", g_random_int_range (0, G_MAXINT));
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sender = g_strdup (g_dbus_connection_get_unique_name (connection) + 1);
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for (i = 0; sender[i]; i++)
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if (sender[i] == '.')
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sender[i] = '_';
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handle = g_strdup_printf ("/org/freedesktop/portal/desktop/request/%s/%s", sender, token);
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picker->portal_signal_id = g_dbus_connection_signal_subscribe (connection,
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"org.freedesktop.portal.Desktop",
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"org.freedesktop.portal.Request",
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"Response",
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handle,
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NULL,
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G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
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portal_response_received,
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picker,
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NULL);
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g_free (handle);
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g_free (sender);
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g_variant_builder_init (&options, G_VARIANT_TYPE_VARDICT);
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g_variant_builder_add (&options, "{sv}", "handle_token", g_variant_new_string (token));
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g_free (token);
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g_dbus_proxy_call (picker->portal_proxy,
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"PickColor",
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g_variant_new ("(sa{sv})", "", &options),
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0,
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-1,
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NULL,
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NULL,
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NULL);
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}
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static GdkRGBA *
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gtk_color_picker_portal_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_portal_iface_init (GtkColorPickerInterface *iface)
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{
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iface->pick = gtk_color_picker_portal_pick;
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iface->pick_finish = gtk_color_picker_portal_pick_finish;
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}
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41
gtk/gtkcolorpickerportalprivate.h
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41
gtk/gtkcolorpickerportalprivate.h
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@ -0,0 +1,41 @@
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/*
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* GTK - The GIMP Toolkit
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* Copyright (C) 2018 Red Hat, Inc.
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* All rights reserved.
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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 Library General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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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#ifndef __GTK_COLOR_PICKER_PORTAL_H__
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#define __GTK_COLOR_PICKER_PORTAL_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gtk/gtkcolorpickerprivate.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_COLOR_PICKER_PORTAL gtk_color_picker_portal_get_type ()
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G_DECLARE_FINAL_TYPE (GtkColorPickerPortal, gtk_color_picker_portal, GTK, COLOR_PICKER_PORTAL, GObject)
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GDK_AVAILABLE_IN_ALL
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GtkColorPicker * gtk_color_picker_portal_new (void);
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G_END_DECLS
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#endif /* __GTK_COLOR_PICKER_PORTAL_H__ */
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