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/**
* Copyright © 2010 Canonical Limited
*
* 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 3 of the licence, 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/>.
*
* Author: Ryan Lortie <desrt@desrt.ca>
**/
#include "config.h"
#include "dconf-dbus-1.h"
#include "../engine/dconf-engine.h"
#include "dconf-libdbus-1.h"
#include <string.h>
struct _DConfDBusClient
{
DConfEngine *engine;
GSList *watches;
gint ref_count;
};
typedef struct
{
gchar *path;
DConfDBusNotify notify;
gpointer user_data;
} Watch;
void
dconf_engine_change_notify (DConfEngine *engine,
const gchar *prefix,
const gchar * const *changes,
const gchar *tag,
gpointer origin_tag,
gpointer user_data)
{
DConfDBusClient *dcdbc = user_data;
gchar **my_changes;
gint n_changes;
GSList *iter;
gint i;
n_changes = g_strv_length ((gchar **) changes);
my_changes = g_new (gchar *, n_changes + 1);
for (i = 0; i < n_changes; i++)
my_changes[i] = g_strconcat (prefix, changes[i], NULL);
my_changes[i] = NULL;
for (iter = dcdbc->watches; iter; iter = iter->next)
{
Watch *watch = iter->data;
for (i = 0; i < n_changes; i++)
if (g_str_has_prefix (my_changes[i], watch->path))
watch->notify (dcdbc, my_changes[i], watch->user_data);
}
g_strfreev (my_changes);
}
GVariant *
dconf_dbus_client_read (DConfDBusClient *dcdbc,
const gchar *key)
{
return dconf_engine_read (dcdbc->engine, NULL, key);
}
gboolean
dconf_dbus_client_write (DConfDBusClient *dcdbc,
const gchar *key,
GVariant *value)
{
DConfChangeset *changeset;
gboolean success;
changeset = dconf_changeset_new_write (key, value);
success = dconf_engine_change_fast (dcdbc->engine, changeset, NULL, NULL);
dconf_changeset_unref (changeset);
return success;
}
void
dconf_dbus_client_subscribe (DConfDBusClient *dcdbc,
const gchar *path,
DConfDBusNotify notify,
gpointer user_data)
{
Watch *watch;
watch = g_slice_new (Watch);
watch->path = g_strdup (path);
watch->notify = notify;
watch->user_data = user_data;
dcdbc->watches = g_slist_prepend (dcdbc->watches, watch);
dconf_engine_watch_fast (dcdbc->engine, path);
}
void
dconf_dbus_client_unsubscribe (DConfDBusClient *dcdbc,
DConfDBusNotify notify,
gpointer user_data)
{
GSList **ptr;
for (ptr = &dcdbc->watches; *ptr; ptr = &(*ptr)->next)
{
Watch *watch = (*ptr)->data;
if (watch->notify == notify && watch->user_data == user_data)
{
*ptr = g_slist_remove_link (*ptr, *ptr);
dconf_engine_unwatch_fast (dcdbc->engine, watch->path);
g_free (watch->path);
g_slice_free (Watch, watch);
return;
}
}
g_warning ("No matching watch found to unsubscribe");
}
gboolean
dconf_dbus_client_has_pending (DConfDBusClient *dcdbc)
{
return dconf_engine_has_outstanding (dcdbc->engine);
}
DConfDBusClient *
dconf_dbus_client_new (const gchar *profile,
DBusConnection *session,
DBusConnection *system)
{
DConfDBusClient *dcdbc;
if (session == NULL)
session = dbus_bus_get (DBUS_BUS_SESSION, NULL);
if (system == NULL)
system = dbus_bus_get (DBUS_BUS_SYSTEM, NULL);
dconf_libdbus_1_provide_bus (G_BUS_TYPE_SESSION, session);
dconf_libdbus_1_provide_bus (G_BUS_TYPE_SYSTEM, system);
dcdbc = g_slice_new (DConfDBusClient);
dcdbc->engine = dconf_engine_new (dcdbc, NULL);
dcdbc->watches = NULL;
dcdbc->ref_count = 1;
return dcdbc;
}
void
dconf_dbus_client_unref (DConfDBusClient *dcdbc)
{
if (--dcdbc->ref_count == 0)
{
g_return_if_fail (dcdbc->watches == NULL);
g_slice_free (DConfDBusClient, dcdbc);
}
}
DConfDBusClient *
dconf_dbus_client_ref (DConfDBusClient *dcdbc)
{
dcdbc->ref_count++;
return dcdbc;
}
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