diff options
Diffstat (limited to '')
| -rw-r--r-- | gnome-session/gsm-shell-extensions.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/gnome-session/gsm-shell-extensions.c b/gnome-session/gsm-shell-extensions.c new file mode 100644 index 0000000..73d898f --- /dev/null +++ b/gnome-session/gsm-shell-extensions.c @@ -0,0 +1,199 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ +/* + * Copyright (C) 2011 Red Hat, Inc + * + * 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, 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/>. + * + * Authors: + * Jasper St. Pierre <jstpierre@mecheye.net> + */ + +#include <config.h> + +#include <glib.h> +#include <gio/gio.h> +#include <json-glib/json-glib.h> + +#include "gsm-shell-extensions.h" + +#define SHELL_SCHEMA "org.gnome.shell" +#define DISABLE_EXTENSIONS_KEY "disable-user-extensions" + +#define SHELL_EXTENSIONS_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GSM_TYPE_SHELL_EXTENSIONS, GsmShellExtensionsPrivate)) + +struct _GsmShellExtensionsPrivate +{ + GSettings *settings; + guint num_extensions; +}; + +G_DEFINE_TYPE (GsmShellExtensions, gsm_shell_extensions, G_TYPE_OBJECT); + +/** + * gsm_shell_extensions_finalize: + * @object: (in): A #GsmShellExtensions. + * + * Finalizer for a #GsmShellExtensions instance. Frees any resources held by + * the instance. + */ +static void +gsm_shell_extensions_finalize (GObject *object) +{ + GsmShellExtensions *extensions = GSM_SHELL_EXTENSIONS (object); + GsmShellExtensionsPrivate *priv = extensions->priv; + + g_clear_object (&priv->settings); + + G_OBJECT_CLASS (gsm_shell_extensions_parent_class)->finalize (object); +} + +/** + * gsm_shell_extensions_class_init: + * @klass: (in): A #GsmShellExtensionsClass. + * + * Initializes the #GsmShellExtensionsClass and prepares the vtable. + */ +static void +gsm_shell_extensions_class_init (GsmShellExtensionsClass *klass) +{ + GObjectClass *object_class; + + object_class = G_OBJECT_CLASS (klass); + object_class->finalize = gsm_shell_extensions_finalize; + g_type_class_add_private (object_class, sizeof (GsmShellExtensionsPrivate)); +} + +static void +gsm_shell_extensions_scan_dir (GsmShellExtensions *self, + GFile *dir) +{ + GFileEnumerator *enumerator; + GFileInfo *info; + JsonParser *metadata_parser; + + metadata_parser = json_parser_new (); + + enumerator = g_file_enumerate_children (dir, + "standard::*", + G_FILE_QUERY_INFO_NONE, + NULL, + NULL); + + if (enumerator == NULL) + return; + + while ((info = g_file_enumerator_next_file (enumerator, NULL, NULL)) != NULL) + { + gchar *metadata_filename; + const gchar *metadata_uuid; + gchar *dir_uuid; + JsonObject *metadata_root; + + dir_uuid = (char *) g_file_info_get_name (info); + + metadata_filename = g_build_filename (g_file_get_path (dir), + dir_uuid, + "metadata.json", + NULL); + + if (!json_parser_load_from_file (metadata_parser, metadata_filename, NULL)) + continue; + + g_free (metadata_filename); + + metadata_root = json_node_get_object (json_parser_get_root (metadata_parser)); + + metadata_uuid = json_object_get_string_member (metadata_root, "uuid"); + if (!g_str_equal (metadata_uuid, dir_uuid)) + { + g_warning ("Extension with dirname '%s' does not match metadata's UUID of '%s'. Skipping.", + dir_uuid, metadata_uuid); + continue; + } + + self->priv->num_extensions++; + } +} + +static void +gsm_shell_extensions_scan (GsmShellExtensions *self) +{ + gchar *dirname; + GFile *dir; + const gchar * const * system_data_dirs; + int i; + + /* User data dir first. */ + dirname = g_build_filename (g_get_user_data_dir (), "gnome-shell", "extensions", NULL); + dir = g_file_new_for_path (dirname); + g_free (dirname); + + gsm_shell_extensions_scan_dir (self, dir); + g_object_unref (dir); + + system_data_dirs = g_get_system_data_dirs (); + for (i = 0; system_data_dirs[i]; i++) + { + dirname = g_build_filename (system_data_dirs[i], "gnome-shell", "extensions", NULL); + dir = g_file_new_for_path (dirname); + g_free (dirname); + + gsm_shell_extensions_scan_dir (self, dir); + g_object_unref (dir); + } +} + +/** + * gsm_shell_extensions_init: + * @self: (in): A #GsmShellExtensions. + * + * Initializes the newly created #GsmShellExtensions instance. + */ +static void +gsm_shell_extensions_init (GsmShellExtensions *self) +{ + GSettingsSchemaSource *source; + GSettingsSchema *schema; + + self->priv = SHELL_EXTENSIONS_PRIVATE (self); + + source = g_settings_schema_source_get_default (); + schema = g_settings_schema_source_lookup (source, SHELL_SCHEMA, TRUE); + + if (schema != NULL) + { + self->priv->settings = g_settings_new_full (schema, NULL, NULL); + g_settings_schema_unref (schema); + } + + if (self->priv->settings != NULL) + gsm_shell_extensions_scan (self); +} + +gboolean +gsm_shell_extensions_disable_all (GsmShellExtensions *self) +{ + return g_settings_set_boolean (self->priv->settings, + DISABLE_EXTENSIONS_KEY, + TRUE); +} + +guint +gsm_shell_extensions_n_extensions (GsmShellExtensions *self) +{ + if (self->priv->settings == NULL) + return 0; + + return self->priv->num_extensions; +} |