| /* * 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; |
| } |