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- /*
- * Copyright (C) 2020 Alberts Muktupāvels
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
- #include "config.h"
- #include "gp-lock-screen-applet.h"
- #include <gio/gdesktopappinfo.h>
- #include <glib/gi18n-lib.h>
- #include "gpab-screensaver-gen.h"
- struct _GpLockScreenApplet
- {
- GpActionButtonApplet parent;
- GDesktopAppInfo *lock_panel;
- GpabScreensaverGen *screensaver;
- };
- G_DEFINE_TYPE (GpLockScreenApplet,
- gp_lock_screen_applet,
- GP_TYPE_ACTION_BUTTON_APPLET)
- static void
- error_response_cb (GtkWidget *widget,
- int response_id,
- gpointer user_data)
- {
- gtk_widget_destroy (widget);
- }
- static void
- show_error_message (GtkWindow *parent,
- const char *primary_text,
- const char *secondary_text)
- {
- GtkWidget *dialog;
- dialog = gtk_message_dialog_new (parent,
- GTK_DIALOG_DESTROY_WITH_PARENT,
- GTK_MESSAGE_ERROR,
- GTK_BUTTONS_CLOSE,
- "%s",
- primary_text);
- gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
- "%s",
- secondary_text);
- g_signal_connect (dialog, "response", G_CALLBACK (error_response_cb), NULL);
- gtk_window_present (GTK_WINDOW (dialog));
- }
- static void
- lockdown_changed (GpLockScreenApplet *self)
- {
- GpLockdownFlags lockdowns;
- gboolean applet_sensitive;
- gboolean properties_enabled;
- GAction *action;
- lockdowns = gp_applet_get_lockdowns (GP_APPLET (self));
- applet_sensitive = TRUE;
- if ((lockdowns & GP_LOCKDOWN_FLAGS_APPLET) == GP_LOCKDOWN_FLAGS_APPLET ||
- (lockdowns & GP_LOCKDOWN_FLAGS_LOCK_SCREEN) == GP_LOCKDOWN_FLAGS_LOCK_SCREEN)
- applet_sensitive = FALSE;
- gtk_widget_set_sensitive (GTK_WIDGET (self), applet_sensitive);
- action = gp_applet_menu_lookup_action (GP_APPLET (self), "lock-screen");
- g_simple_action_set_enabled (G_SIMPLE_ACTION (action), applet_sensitive);
- properties_enabled = (lockdowns & GP_LOCKDOWN_FLAGS_LOCKED_DOWN) != GP_LOCKDOWN_FLAGS_LOCKED_DOWN &&
- (lockdowns & GP_LOCKDOWN_FLAGS_LOCK_SCREEN) != GP_LOCKDOWN_FLAGS_LOCK_SCREEN &&
- self->lock_panel != NULL;
- action = gp_applet_menu_lookup_action (GP_APPLET (self), "properties");
- g_simple_action_set_enabled (G_SIMPLE_ACTION (action), properties_enabled);
- }
- static void
- lockdowns_cb (GpApplet *applet,
- GParamSpec *pspec,
- GpLockScreenApplet *self)
- {
- lockdown_changed (self);
- }
- static void
- lock_cb (GObject *source,
- GAsyncResult *res,
- gpointer user_data)
- {
- GError *error;
- error = NULL;
- gpab_screensaver_gen_call_lock_finish (GPAB_SCREENSAVER_GEN (source),
- res,
- &error);
- if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- {
- g_error_free (error);
- return;
- }
- if (error)
- {
- g_warning ("Could not ask screensaver to lock: %s",
- error->message);
- g_error_free (error);
- return;
- }
- }
- static void
- lock_screen (GpLockScreenApplet *self)
- {
- if (!self->screensaver)
- {
- g_warning ("Screensaver service not available.");
- return;
- }
- gpab_screensaver_gen_call_lock (self->screensaver,
- NULL,
- lock_cb,
- self);
- }
- static void
- lock_screen_cb (GSimpleAction *action,
- GVariant *parameter,
- gpointer user_data)
- {
- lock_screen (GP_LOCK_SCREEN_APPLET (user_data));
- }
- static void
- set_active_cb (GObject *source,
- GAsyncResult *res,
- gpointer user_data)
- {
- GError *error;
- error = NULL;
- gpab_screensaver_gen_call_set_active_finish (GPAB_SCREENSAVER_GEN (source),
- res,
- &error);
- if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- {
- g_error_free (error);
- return;
- }
- if (error)
- {
- g_warning ("Could not ask screensaver to activate: %s",
- error->message);
- g_error_free (error);
- return;
- }
- }
- static void
- screensaver_cb (GSimpleAction *action,
- GVariant *parameter,
- gpointer user_data)
- {
- GpLockScreenApplet *self;
- self = GP_LOCK_SCREEN_APPLET (user_data);
- if (!self->screensaver)
- {
- g_warning ("Screensaver service not available.");
- return;
- }
- gpab_screensaver_gen_call_set_active (self->screensaver,
- TRUE,
- NULL,
- set_active_cb,
- self);
- }
- static void
- child_setup (gpointer user_data)
- {
- GAppInfo *info;
- const gchar *id;
- gint stdout_fd;
- gint stderr_fd;
- info = G_APP_INFO (user_data);
- id = g_app_info_get_id (info);
- }
- static void
- close_pid (GPid pid,
- gint status,
- gpointer user_data)
- {
- g_spawn_close_pid (pid);
- }
- static void
- pid_cb (GDesktopAppInfo *info,
- GPid pid,
- gpointer user_data)
- {
- g_child_watch_add (pid, close_pid, NULL);
- }
- static void
- properties_cb (GSimpleAction *action,
- GVariant *parameter,
- gpointer user_data)
- {
- GpLockScreenApplet *self;
- GSpawnFlags flags;
- GError *error;
- self = GP_LOCK_SCREEN_APPLET (user_data);
- g_assert (self->lock_panel != NULL);
- flags = G_SPAWN_SEARCH_PATH | G_SPAWN_DO_NOT_REAP_CHILD;
- error = NULL;
- g_desktop_app_info_launch_uris_as_manager (self->lock_panel,
- NULL,
- NULL,
- flags,
- child_setup,
- self->lock_panel,
- pid_cb,
- NULL,
- &error);
- if (error != NULL)
- {
- show_error_message (NULL,
- _("Could not launch application"),
- error->message);
- g_error_free (error);
- }
- }
- static const GActionEntry lock_screen_menu_actions[] =
- {
- { "lock-screen", lock_screen_cb, NULL, NULL, NULL },
- { "screensaver", screensaver_cb, NULL, NULL, NULL },
- { "properties", properties_cb, NULL, NULL, NULL },
- { NULL }
- };
- static void
- setup_menu (GpLockScreenApplet *self)
- {
- GpApplet *applet;
- const char *resource;
- applet = GP_APPLET (self);
- resource = "/org/gnome/gnome-panel/modules/action-button/gp-lock-screen-menu.ui";
- gp_applet_setup_menu_from_resource (applet, resource, lock_screen_menu_actions);
- lockdown_changed (self);
- }
- static void
- setup_applet (GpLockScreenApplet *self)
- {
- const char *text;
- AtkObject *atk;
- setup_menu (self);
- gp_action_button_applet_set_icon_name (GP_ACTION_BUTTON_APPLET (self),
- "system-lock-screen");
- text = _("Protect your computer from unauthorized use");
- atk = gtk_widget_get_accessible (GTK_WIDGET (self));
- atk_object_set_name (atk, text);
- atk_object_set_description (atk, text);
- gtk_widget_set_tooltip_text (GTK_WIDGET (self), text);
- g_object_bind_property (self,
- "enable-tooltips",
- self,
- "has-tooltip",
- G_BINDING_DEFAULT | G_BINDING_SYNC_CREATE);
- lockdown_changed (self);
- }
- static void
- screensaver_proxy_ready_cb (GObject *source_object,
- GAsyncResult *res,
- gpointer user_data)
- {
- GError *error;
- GpabScreensaverGen *screensaver;
- GpLockScreenApplet *self;
- error = NULL;
- screensaver = gpab_screensaver_gen_proxy_new_for_bus_finish (res, &error);
- if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
- {
- g_error_free (error);
- return;
- }
- self = GP_LOCK_SCREEN_APPLET (user_data);
- self->screensaver = screensaver;
- if (error)
- {
- g_warning ("%s", error->message);
- g_error_free (error);
- return;
- }
- }
- static void
- gp_lock_screen_applet_constructed (GObject *object)
- {
- G_OBJECT_CLASS (gp_lock_screen_applet_parent_class)->constructed (object);
- setup_applet (GP_LOCK_SCREEN_APPLET (object));
- }
- static void
- gp_lock_screen_applet_dispose (GObject *object)
- {
- GpLockScreenApplet *self;
- self = GP_LOCK_SCREEN_APPLET (object);
- g_clear_object (&self->lock_panel);
- g_clear_object (&self->screensaver);
- G_OBJECT_CLASS (gp_lock_screen_applet_parent_class)->dispose (object);
- }
- static void
- gp_lock_screen_applet_clicked (GpActionButtonApplet *applet)
- {
- lock_screen (GP_LOCK_SCREEN_APPLET (applet));
- }
- static void
- gp_lock_screen_applet_class_init (GpLockScreenAppletClass *self_class)
- {
- GObjectClass *object_class;
- GpActionButtonAppletClass *action_button_applet_class;
- object_class = G_OBJECT_CLASS (self_class);
- action_button_applet_class = GP_ACTION_BUTTON_APPLET_CLASS (self_class);
- object_class->constructed = gp_lock_screen_applet_constructed;
- object_class->dispose = gp_lock_screen_applet_dispose;
- action_button_applet_class->clicked = gp_lock_screen_applet_clicked;
- }
- static void
- gp_lock_screen_applet_init (GpLockScreenApplet *self)
- {
- self->lock_panel = g_desktop_app_info_new ("gnome-lock-panel.desktop");
- gpab_screensaver_gen_proxy_new_for_bus (G_BUS_TYPE_SESSION,
- G_DBUS_PROXY_FLAGS_NONE,
- "org.gnome.ScreenSaver",
- "/org/gnome/ScreenSaver",
- NULL,
- screensaver_proxy_ready_cb,
- self);
- g_signal_connect (self,
- "notify::lockdowns",
- G_CALLBACK (lockdowns_cb),
- self);
- }
- gboolean
- gp_lock_screen_applet_is_disabled (GpLockdownFlags flags,
- char **reason)
- {
- if ((flags & GP_LOCKDOWN_FLAGS_LOCK_SCREEN) != GP_LOCKDOWN_FLAGS_LOCK_SCREEN)
- return FALSE;
- *reason = g_strdup (_("Disabled because “disable-lock-screen” setting in "
- "“org.gnome.desktop.lockdown” GSettings schema is "
- "set to true."));
- return TRUE;
- }
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