--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/libgq/gconf/gconfitem.cpp Mon Oct 04 01:19:32 2010 +0300
@@ -0,0 +1,376 @@
+/* * This file is part of libgq *
+ *
+ * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ *
+ * Contact: Marius Vollmer <marius.vollmer@nokia.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <QString>
+#include <QStringList>
+#include <QByteArray>
+#include <QVariant>
+#include <QtDebug>
+
+#include "gconfitem.h"
+
+#include <glib.h>
+#include <gconf/gconf-value.h>
+#include <gconf/gconf-client.h>
+
+struct GConfItemPrivate {
+ QString key;
+ QVariant value;
+ guint notify_id;
+
+ static void notify_trampoline(GConfClient*, guint, GConfEntry *, gpointer);
+};
+
+/* We get the default client and never release it, on purpose, to
+ avoid disconnecting from the GConf daemon when a program happens to
+ not have any GConfItems for short periods of time.
+ */
+static GConfClient *
+get_gconf_client ()
+{
+ static bool initialized = false;
+ static GConfClient *client;
+
+ if (initialized)
+ return client;
+
+ g_type_init ();
+ client = gconf_client_get_default();
+ initialized = true;
+
+ return client;
+}
+
+/* Sometimes I like being too clever...
+ */
+#define withClient(c) for (GConfClient *c = get_gconf_client (); c; c = NULL)
+
+static QByteArray convertKey (QString key)
+{
+ if (key.startsWith('/'))
+ return key.toUtf8();
+ else
+ {
+ qWarning() << "Using dot-separated key names with GConfItem is deprecated.";
+ qWarning() << "Please use" << '/' + key.replace('.', '/') << "instead of" << key;
+ return '/' + key.replace('.', '/').toUtf8();
+ }
+}
+
+static QString convertKey(const char *key)
+{
+ return QString::fromUtf8(key);
+}
+
+static QVariant convertValue(GConfValue *src)
+{
+ if (!src) {
+ return QVariant();
+ } else {
+ switch (src->type) {
+ case GCONF_VALUE_INVALID:
+ return QVariant(QVariant::Invalid);
+ case GCONF_VALUE_BOOL:
+ return QVariant((bool)gconf_value_get_bool(src));
+ case GCONF_VALUE_INT:
+ return QVariant(gconf_value_get_int(src));
+ case GCONF_VALUE_FLOAT:
+ return QVariant(gconf_value_get_float(src));
+ case GCONF_VALUE_STRING:
+ return QVariant(QString::fromUtf8(gconf_value_get_string(src)));
+ case GCONF_VALUE_LIST:
+ switch (gconf_value_get_list_type(src)) {
+ case GCONF_VALUE_STRING:
+ {
+ QStringList result;
+ for (GSList *elts = gconf_value_get_list(src); elts; elts = elts->next)
+ result.append(QString::fromUtf8(gconf_value_get_string((GConfValue *)elts->data)));
+ return QVariant(result);
+ }
+ default:
+ {
+ QList<QVariant> result;
+ for (GSList *elts = gconf_value_get_list(src); elts; elts = elts->next)
+ result.append(convertValue((GConfValue *)elts->data));
+ return QVariant(result);
+ }
+ }
+ case GCONF_VALUE_SCHEMA:
+ default:
+ return QVariant();
+ }
+ }
+}
+
+static GConfValue *convertString(const QString &str)
+{
+ GConfValue *v = gconf_value_new (GCONF_VALUE_STRING);
+ gconf_value_set_string (v, str.toUtf8().data());
+ return v;
+}
+
+static GConfValueType primitiveType (const QVariant &elt)
+{
+ switch(elt.type()) {
+ case QVariant::String:
+ return GCONF_VALUE_STRING;
+ case QVariant::Int:
+ return GCONF_VALUE_INT;
+ case QVariant::Double:
+ return GCONF_VALUE_FLOAT;
+ case QVariant::Bool:
+ return GCONF_VALUE_BOOL;
+ default:
+ return GCONF_VALUE_INVALID;
+ }
+}
+
+static GConfValueType uniformType(const QList<QVariant> &list)
+{
+ GConfValueType result = GCONF_VALUE_INVALID;
+
+ foreach (const QVariant &elt, list) {
+ GConfValueType elt_type = primitiveType (elt);
+
+ if (elt_type == GCONF_VALUE_INVALID)
+ return GCONF_VALUE_INVALID;
+
+ if (result == GCONF_VALUE_INVALID)
+ result = elt_type;
+ else if (result != elt_type)
+ return GCONF_VALUE_INVALID;
+ }
+
+ if (result == GCONF_VALUE_INVALID)
+ return GCONF_VALUE_STRING; // empty list.
+ else
+ return result;
+}
+
+static int convertValue(const QVariant &src, GConfValue **valp)
+{
+ GConfValue *v;
+
+ switch(src.type()) {
+ case QVariant::Invalid:
+ v = NULL;
+ break;
+ case QVariant::Bool:
+ v = gconf_value_new (GCONF_VALUE_BOOL);
+ gconf_value_set_bool (v, src.toBool());
+ break;
+ case QVariant::Int:
+ v = gconf_value_new (GCONF_VALUE_INT);
+ gconf_value_set_int (v, src.toInt());
+ break;
+ case QVariant::Double:
+ v = gconf_value_new (GCONF_VALUE_FLOAT);
+ gconf_value_set_float (v, src.toDouble());
+ break;
+ case QVariant::String:
+ v = convertString(src.toString());
+ break;
+ case QVariant::StringList:
+ {
+ GSList *elts = NULL;
+ v = gconf_value_new(GCONF_VALUE_LIST);
+ gconf_value_set_list_type(v, GCONF_VALUE_STRING);
+ foreach (const QString &str, src.toStringList())
+ elts = g_slist_prepend(elts, convertString(str));
+ gconf_value_set_list_nocopy(v, g_slist_reverse(elts));
+ break;
+ }
+ case QVariant::List:
+ {
+ GConfValueType elt_type = uniformType(src.toList());
+ if (elt_type == GCONF_VALUE_INVALID)
+ v = NULL;
+ else
+ {
+ GSList *elts = NULL;
+ v = gconf_value_new(GCONF_VALUE_LIST);
+ gconf_value_set_list_type(v, elt_type);
+ foreach (const QVariant &elt, src.toList())
+ {
+ GConfValue *val = NULL;
+ convertValue(elt, &val); // guaranteed to succeed.
+ elts = g_slist_prepend(elts, val);
+ }
+ gconf_value_set_list_nocopy(v, g_slist_reverse(elts));
+ }
+ break;
+ }
+ default:
+ return 0;
+ }
+
+ *valp = v;
+ return 1;
+}
+
+void GConfItemPrivate::notify_trampoline (GConfClient*,
+ guint,
+ GConfEntry *,
+ gpointer data)
+{
+ GConfItem *item = (GConfItem *)data;
+ item->update_value (true);
+}
+
+void GConfItem::update_value (bool emit_signal)
+{
+ QVariant new_value;
+
+ withClient(client) {
+ GError *error = NULL;
+ QByteArray k = convertKey(priv->key);
+ GConfValue *v = gconf_client_get(client, k.data(), &error);
+
+ if (error) {
+ qWarning() << error->message;
+ g_error_free (error);
+ new_value = priv->value;
+ } else {
+ new_value = convertValue(v);
+ if (v)
+ gconf_value_free(v);
+ }
+ }
+
+ if (new_value != priv->value) {
+ priv->value = new_value;
+ if (emit_signal)
+ emit valueChanged();
+ }
+}
+
+QString GConfItem::key() const
+{
+ return priv->key;
+}
+
+QVariant GConfItem::value() const
+{
+ return priv->value;
+}
+
+QVariant GConfItem::value(const QVariant &def) const
+{
+ if (priv->value.isNull())
+ return def;
+ else
+ return priv->value;
+}
+
+void GConfItem::set(const QVariant &val)
+{
+ withClient(client) {
+ QByteArray k = convertKey(priv->key);
+ GConfValue *v;
+ if (convertValue(val, &v)) {
+ GError *error = NULL;
+
+ if (v) {
+ gconf_client_set(client, k.data(), v, &error);
+ gconf_value_free(v);
+ } else {
+ gconf_client_unset(client, k.data(), &error);
+ }
+
+ if (error) {
+ qWarning() << error->message;
+ g_error_free(error);
+ } else if (priv->value != val) {
+ priv->value = val;
+ emit valueChanged();
+ }
+
+ } else
+ qWarning() << "Can't store a" << val.typeName();
+ }
+}
+
+void GConfItem::unset() {
+ set(QVariant());
+}
+
+QList<QString> GConfItem::listDirs() const
+{
+ QList<QString> children;
+
+ withClient(client) {
+ QByteArray k = convertKey(priv->key);
+ GSList *dirs = gconf_client_all_dirs(client, k.data(), NULL);
+ for (GSList *d = dirs; d; d = d->next) {
+ children.append(convertKey((char *)d->data));
+ g_free (d->data);
+ }
+ g_slist_free (dirs);
+ }
+
+ return children;
+}
+
+QList<QString> GConfItem::listEntries() const
+{
+ QList<QString> children;
+
+ withClient(client) {
+ QByteArray k = convertKey(priv->key);
+ GSList *entries = gconf_client_all_entries(client, k.data(), NULL);
+ for (GSList *e = entries; e; e = e->next) {
+ children.append(convertKey(((GConfEntry *)e->data)->key));
+ gconf_entry_free ((GConfEntry *)e->data);
+ }
+ g_slist_free (entries);
+ }
+
+ return children;
+}
+
+GConfItem::GConfItem(const QString &key, QObject *parent)
+ : QObject (parent)
+{
+ priv = new GConfItemPrivate;
+ priv->key = key;
+ priv->notify_id = 0;
+ withClient(client) {
+ update_value (false);
+ QByteArray k = convertKey(priv->key);
+ gconf_client_add_dir (client, k.data(), GCONF_CLIENT_PRELOAD_ONELEVEL, NULL);
+ priv->notify_id = gconf_client_notify_add (client, k.data(),
+ GConfItemPrivate::notify_trampoline, this,
+ NULL, NULL);
+ }
+}
+
+GConfItem::~GConfItem()
+{
+ withClient(client) {
+ QByteArray k = convertKey(priv->key);
+ if (priv->notify_id)
+ gconf_client_notify_remove (client, priv->notify_id);
+ gconf_client_remove_dir (client, k.data(), NULL);
+ }
+ delete priv;
+}