/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
*
* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
*
* 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/>.
*
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#include <gio/gio.h>
#include "gsd-xsettings-gtk.h"
#define XSETTINGS_PLUGIN_SCHEMA "org.gnome.settings-daemon.plugins.xsettings"
#define GTK_MODULES_DISABLED_KEY "disabled-gtk-modules"
#define GTK_MODULES_ENABLED_KEY "enabled-gtk-modules"
static const char *modules_path = NULL;
enum {
PROP_0,
PROP_GTK_MODULES
};
struct GsdXSettingsGtkPrivate {
char *modules;
GHashTable *dir_modules;
GSettings *settings;
guint64 dir_mtime;
GFileMonitor *monitor;
GList *cond_settings;
};
#define GSD_XSETTINGS_GTK_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), GSD_TYPE_XSETTINGS_GTK, GsdXSettingsGtkPrivate))
G_DEFINE_TYPE(GsdXSettingsGtk, gsd_xsettings_gtk, G_TYPE_OBJECT)
static void update_gtk_modules (GsdXSettingsGtk *gtk);
static void
empty_cond_settings_list (GsdXSettingsGtk *gtk)
{
if (gtk->priv->cond_settings == NULL)
return;
/* Empty the list of settings */
g_list_foreach (gtk->priv->cond_settings, (GFunc) g_object_unref, NULL);
g_list_free (gtk->priv->cond_settings);
gtk->priv->cond_settings = NULL;
}
static void
cond_setting_changed (GSettings *settings,
const char *key,
GsdXSettingsGtk *gtk)
{
gboolean enabled;
const char *module_name;
module_name = g_object_get_data (G_OBJECT (settings), "module-name");
enabled = g_settings_get_boolean (settings, key);
if (enabled != FALSE) {
if (gtk->priv->dir_modules == NULL)
gtk->priv->dir_modules = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
g_hash_table_insert (gtk->priv->dir_modules, g_strdup (module_name), NULL);
} else if (gtk->priv->dir_modules != NULL) {
g_hash_table_remove (gtk->priv->dir_modules, module_name);
}
update_gtk_modules (gtk);
}
static char *
process_desktop_file (const char *path,
GsdXSettingsGtk *gtk)
{
GKeyFile *keyfile;
char *retval;
char *module_name;
retval = NULL;
if (g_str_has_suffix (path, ".desktop") == FALSE &&
g_str_has_suffix (path, ".gtk-module") == FALSE)
return retval;
keyfile = g_key_file_new ();
if (g_key_file_load_from_file (keyfile, path, G_KEY_FILE_NONE, NULL) == FALSE)
goto bail;
if (g_key_file_has_group (keyfile, "GTK Module") == FALSE)
goto bail;
module_name = g_key_file_get_string (keyfile, "GTK Module", "X-GTK-Module-Name", NULL);
if (module_name == NULL)
goto bail;
if (g_key_file_has_key (keyfile, "GTK Module", "X-GTK-Module-Enabled-Schema", NULL) != FALSE) {
char *schema;
char *key;
gboolean enabled;
GSettings *settings;
char *signal;
schema = g_key_file_get_string (keyfile, "GTK Module", "X-GTK-Module-Enabled-Schema", NULL);
key = g_key_file_get_string (keyfile, "GTK Module", "X-GTK-Module-Enabled-Key", NULL);
settings = g_settings_new (schema);
gtk->priv->cond_settings = g_list_prepend (gtk->priv->cond_settings, settings);
g_object_set_data_full (G_OBJECT (settings), "module-name", g_strdup (module_name), (GDestroyNotify) g_free);
signal = g_strdup_printf ("changed::%s", key);
g_signal_connect_object (G_OBJECT (settings), signal, G_CALLBACK (cond_setting_changed), gtk, 0);
enabled = g_settings_get_boolean (settings, key);
g_free (signal);
g_free (schema);
g_free (key);
if (enabled != FALSE)
retval = g_strdup (module_name);
} else {
retval = g_strdup (module_name);
}
g_free (module_name);
bail:
g_key_file_free (keyfile);
return retval;
}
static void
get_gtk_modules_from_dir (GsdXSettingsGtk *gtk)
{
GFile *file;
GFileInfo *info;
GHashTable *ht;
file = g_file_new_for_path (modules_path);
info = g_file_query_info (file,
G_FILE_ATTRIBUTE_TIME_MODIFIED,
G_FILE_QUERY_INFO_NONE,
NULL,
NULL);
if (info != NULL) {
guint64 dir_mtime;
dir_mtime = g_file_info_get_attribute_uint64 (info, G_FILE_ATTRIBUTE_TIME_MODIFIED);
if (gtk->priv->dir_mtime == 0 ||
dir_mtime > gtk->priv->dir_mtime) {
GDir *dir;
const char *name;
empty_cond_settings_list (gtk);
gtk->priv->dir_mtime = dir_mtime;
if (gtk->priv->dir_modules != NULL) {
g_hash_table_destroy (gtk->priv->dir_modules);
gtk->priv->dir_modules = NULL;
}
dir = g_dir_open (modules_path, 0, NULL);
if (dir == NULL)
goto bail;
ht = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
while ((name = g_dir_read_name (dir)) != NULL) {
char *path;
char *module;
path = g_build_filename (modules_path, name, NULL);
module = process_desktop_file (path, gtk);
if (module != NULL)
g_hash_table_insert (ht, module, NULL);
g_free (path);
}
g_dir_close (dir);
gtk->priv->dir_modules = ht;
}
g_object_unref (info);
} else {
empty_cond_settings_list (gtk);
}
bail:
g_object_unref (file);
}
static void
stringify_gtk_modules (gpointer key,
gpointer value,
GString *str)
{
if (str->len != 0)
g_string_append_c (str, ':');
g_string_append (str, key);
}
static void
update_gtk_modules (GsdXSettingsGtk *gtk)
{
char **enabled, **disabled;
GHashTable *ht;
guint i;
GString *str;
char *modules;
enabled = g_settings_get_strv (gtk->priv->settings, GTK_MODULES_ENABLED_KEY);
disabled = g_settings_get_strv (gtk->priv->settings, GTK_MODULES_DISABLED_KEY);
ht = g_hash_table_new (g_str_hash, g_str_equal);
if (gtk->priv->dir_modules != NULL) {
GList *list, *l;
list = g_hash_table_get_keys (gtk->priv->dir_modules);
for (l = list; l != NULL; l = l->next) {
g_hash_table_insert (ht, l->data, NULL);
}
g_list_free (list);
}
for (i = 0; enabled[i] != NULL; i++)
g_hash_table_insert (ht, enabled[i], NULL);
for (i = 0; disabled[i] != NULL; i++)
g_hash_table_remove (ht, disabled[i]);
str = g_string_new (NULL);
g_hash_table_foreach (ht, (GHFunc) stringify_gtk_modules, str);
g_hash_table_destroy (ht);
modules = g_string_free (str, FALSE);
if (modules == NULL ||
gtk->priv->modules == NULL ||
g_str_equal (modules, gtk->priv->modules) == FALSE) {
g_free (gtk->priv->modules);
gtk->priv->modules = modules;
g_object_notify (G_OBJECT (gtk), "gtk-modules");
} else {
g_free (modules);
}
g_strfreev (enabled);
g_strfreev (disabled);
}
static void
gtk_modules_dir_changed_cb (GFileMonitor *monitor,
GFile *file,
GFile *other_file,
GFileMonitorEvent event_type,
GsdXSettingsGtk *gtk)
{
get_gtk_modules_from_dir (gtk);
update_gtk_modules (gtk);
}
static void
gsd_xsettings_gtk_init (GsdXSettingsGtk *gtk)
{
GFile *file;
gtk->priv = GSD_XSETTINGS_GTK_GET_PRIVATE (gtk);
g_debug ("GsdXSettingsGtk initializing");
gtk->priv->settings = g_settings_new (XSETTINGS_PLUGIN_SCHEMA);
modules_path = g_getenv ("GSD_gtk_modules_dir");
if (modules_path == NULL)
modules_path = GTK_MODULES_DIRECTORY;
get_gtk_modules_from_dir (gtk);
file = g_file_new_for_path (modules_path);
gtk->priv->monitor = g_file_monitor (file,
G_FILE_MONITOR_NONE,
NULL,
NULL);
g_signal_connect (G_OBJECT (gtk->priv->monitor), "changed",
G_CALLBACK (gtk_modules_dir_changed_cb), gtk);
g_object_unref (file);
update_gtk_modules (gtk);
}
static void
gsd_xsettings_gtk_finalize (GObject *object)
{
GsdXSettingsGtk *gtk;
g_return_if_fail (object != NULL);
g_return_if_fail (GSD_IS_XSETTINGS_GTK (object));
g_debug ("GsdXSettingsGtk finalizing");
gtk = GSD_XSETTINGS_GTK (object);
g_return_if_fail (gtk->priv != NULL);
g_free (gtk->priv->modules);
gtk->priv->modules = NULL;
if (gtk->priv->dir_modules != NULL) {
g_hash_table_destroy (gtk->priv->dir_modules);
gtk->priv->dir_modules = NULL;
}
g_object_unref (gtk->priv->settings);
if (gtk->priv->monitor != NULL)
g_object_unref (gtk->priv->monitor);
empty_cond_settings_list (gtk);
G_OBJECT_CLASS (gsd_xsettings_gtk_parent_class)->finalize (object);
}
static void
gsd_xsettings_gtk_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GsdXSettingsGtk *self;
self = GSD_XSETTINGS_GTK (object);
switch (prop_id) {
case PROP_GTK_MODULES:
g_value_set_string (value, self->priv->modules);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gsd_xsettings_gtk_class_init (GsdXSettingsGtkClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gsd_xsettings_gtk_get_property;
object_class->finalize = gsd_xsettings_gtk_finalize;
g_object_class_install_property (object_class, PROP_GTK_MODULES,
g_param_spec_string ("gtk-modules", NULL, NULL,
NULL, G_PARAM_READABLE));
g_type_class_add_private (klass, sizeof (GsdXSettingsGtkPrivate));
}
GsdXSettingsGtk *
gsd_xsettings_gtk_new (void)
{
return GSD_XSETTINGS_GTK (g_object_new (GSD_TYPE_XSETTINGS_GTK, NULL));
}
const char *
gsd_xsettings_gtk_get_modules (GsdXSettingsGtk *gtk)
{
return gtk->priv->modules;
}