--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/publishsubscribe/gconflayer_linux.cpp Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,425 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "gconflayer_linux_p.h"
+#include <QVariant>
+
+QTM_BEGIN_NAMESPACE
+
+Q_GLOBAL_STATIC(GConfLayer, gConfLayer);
+QVALUESPACE_AUTO_INSTALL_LAYER(GConfLayer);
+
+GConfLayer::GConfLayer()
+{
+ GConfItem *gconfItem = new GConfItem("/", true, this);
+ connect(gconfItem, SIGNAL(subtreeChanged(const QString &, const QVariant &)), this, SLOT(notifyChanged(const QString &, const QVariant &)));
+}
+
+GConfLayer::~GConfLayer()
+{
+ QMutableHashIterator<QString, GConfHandle *> i(m_handles);
+ while (i.hasNext()) {
+ i.next();
+
+ doRemoveHandle(Handle(i.value()));
+ }
+}
+
+QString GConfLayer::name()
+{
+ return QLatin1String("GConf Layer");
+}
+
+QUuid GConfLayer::id()
+{
+ return QVALUESPACE_GCONF_LAYER;
+}
+
+unsigned int GConfLayer::order()
+{
+ return 0;
+}
+
+QValueSpace::LayerOptions GConfLayer::layerOptions() const
+{
+ return QValueSpace::PermanentLayer |
+ QValueSpace::WritableLayer;
+}
+
+GConfLayer *GConfLayer::instance()
+{
+ return gConfLayer();
+}
+
+bool GConfLayer::startup(Type /*type*/)
+{
+ return true;
+}
+
+bool GConfLayer::value(Handle handle, QVariant *data)
+{
+ QMutexLocker locker(&m_mutex);
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return false;
+
+ return getValue(InvalidHandle, sh->path, data);
+}
+
+bool GConfLayer::value(Handle handle, const QString &subPath, QVariant *data)
+{
+ QMutexLocker locker(&m_mutex);
+ return getValue(handle, subPath, data);
+}
+
+bool GConfLayer::getValue(Handle handle, const QString &subPath, QVariant *data)
+{
+ if (handle != InvalidHandle && !gConfHandle(handle))
+ return false;
+
+ QString path(subPath);
+ while (path.endsWith(QLatin1Char('/')))
+ path.chop(1);
+ if (handle != InvalidHandle)
+ while (path.startsWith(QLatin1Char('/')))
+ path = path.mid(1);
+ int index = path.lastIndexOf(QLatin1Char('/'), -1);
+
+ bool createdHandle = false;
+
+ QString value;
+ if (index == -1) {
+ value = path;
+ } else {
+ // want a value that is in a sub path under handle
+ value = path.mid(index + 1);
+ path.truncate(index);
+
+ handle = getItem(handle, path);
+ createdHandle = true;
+ }
+
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return false;
+
+ QString fullPath(sh->path);
+ if (fullPath != QLatin1String("/") && !value.isEmpty())
+ fullPath.append(QLatin1Char('/'));
+
+ fullPath.append(value);
+
+ GConfItem gconfItem(fullPath);
+ QVariant readValue = gconfItem.value();
+ switch (readValue.type()) {
+ case QVariant::Invalid:
+ case QVariant::Bool:
+ case QVariant::Int:
+ case QVariant::Double:
+ case QVariant::StringList:
+ case QVariant::List:
+ *data = readValue;
+ break;
+ case QVariant::String:
+ {
+ QString readString = readValue.toString();
+ QDataStream readStream(QByteArray::fromBase64(readString.toAscii()));
+ QVariant serializedValue;
+ readStream >> serializedValue;
+ if (serializedValue.isValid()) {
+ *data = serializedValue;
+ } else {
+ *data = readValue;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (createdHandle)
+ doRemoveHandle(handle);
+ return data->isValid();
+}
+
+QSet<QString> GConfLayer::children(Handle handle)
+{
+ QMutexLocker locker(&m_mutex);
+
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return QSet<QString>();
+
+ GConfItem gconfItem(sh->path);
+
+ QSet<QString> ret;
+ foreach (const QString &child, gconfItem.listEntries() + gconfItem.listDirs()) {
+ const int index = child.lastIndexOf(QLatin1Char('/'), -1);
+ ret += child.mid(index + 1);
+ }
+
+ return ret;
+}
+
+QAbstractValueSpaceLayer::Handle GConfLayer::item(Handle parent, const QString &subPath)
+{
+ QMutexLocker locker(&m_mutex);
+ return getItem(parent, subPath);
+}
+
+QAbstractValueSpaceLayer::Handle GConfLayer::getItem(Handle parent, const QString &subPath)
+{
+ QString fullPath;
+
+ // Fail on invalid path.
+ if (subPath.isEmpty() || subPath.contains(QLatin1String("//")))
+ return InvalidHandle;
+
+ if (parent == InvalidHandle) {
+ fullPath = subPath;
+ } else {
+ GConfHandle *sh = gConfHandle(parent);
+ if (!sh)
+ return InvalidHandle;
+
+ if (subPath == QLatin1String("/")) {
+ fullPath = sh->path;
+ } else if (sh->path.endsWith(QLatin1Char('/')) && subPath.startsWith(QLatin1Char('/')))
+ fullPath = sh->path + subPath.mid(1);
+ else if (!sh->path.endsWith(QLatin1Char('/')) && !subPath.startsWith(QLatin1Char('/')))
+ fullPath = sh->path + QLatin1Char('/') + subPath;
+ else
+ fullPath = sh->path + subPath;
+ }
+
+ if (m_handles.contains(fullPath)) {
+ GConfHandle *sh = m_handles.value(fullPath);
+ ++sh->refCount;
+ return Handle(sh);
+ }
+
+ // Create a new handle for path
+ GConfHandle *sh = new GConfHandle(fullPath);
+ m_handles.insert(fullPath, sh);
+
+ return Handle(sh);
+}
+
+void GConfLayer::setProperty(Handle handle, Properties properties)
+{
+ QMutexLocker locker(&m_mutex);
+
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return;
+ QString basePath = sh->path;
+ if (!basePath.endsWith(QLatin1Char('/'))) {
+ basePath += QLatin1Char('/');
+ }
+
+ if (properties & QAbstractValueSpaceLayer::Publish) {
+ m_monitoringHandles.insert(sh);
+ } else {
+ m_monitoringHandles.remove(sh);
+ }
+}
+
+void GConfLayer::removeHandle(Handle handle)
+{
+ QMutexLocker locker(&m_mutex);
+ doRemoveHandle(handle);
+}
+
+void GConfLayer::doRemoveHandle(Handle handle)
+{
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return;
+
+ if (--sh->refCount)
+ return;
+
+ m_monitoringHandles.remove(sh);
+ m_handles.remove(sh->path);
+
+ delete sh;
+}
+
+bool GConfLayer::setValue(QValueSpacePublisher */*creator*/,
+ Handle handle,
+ const QString &subPath,
+ const QVariant &data)
+{
+ QMutexLocker locker(&m_mutex);
+
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return false;
+
+ QString path(subPath);
+ while (path.endsWith(QLatin1Char('/')))
+ path.chop(1);
+
+ int index = path.lastIndexOf(QLatin1Char('/'), -1);
+
+ bool createdHandle = false;
+
+ QString value;
+ if (index == -1) {
+ value = path;
+ } else {
+ // want a value that is in a sub path under handle
+ value = path.mid(index + 1);
+ path.truncate(index);
+
+ if (path.isEmpty())
+ path.append(QLatin1Char('/'));
+
+ sh = gConfHandle(getItem(Handle(sh), path));
+ createdHandle = true;
+ }
+
+ QString fullPath(sh->path);
+ if (fullPath != QLatin1String("/"))
+ fullPath.append(QLatin1Char('/'));
+
+ fullPath.append(value);
+
+ GConfItem gconfItem(fullPath);
+ switch (data.type()) {
+ case QVariant::Invalid:
+ case QVariant::Bool:
+ case QVariant::Int:
+ case QVariant::Double:
+ case QVariant::String:
+ case QVariant::StringList:
+ case QVariant::List:
+ gconfItem.set(data);
+ break;
+ default:
+ QByteArray byteArray;
+ QDataStream writeStream(&byteArray, QIODevice::WriteOnly);
+ writeStream << data;
+ QString serializedValue(byteArray.toBase64());
+ gconfItem.set(serializedValue);
+ }
+
+ if (createdHandle)
+ doRemoveHandle(Handle(sh));
+
+ return true;
+}
+
+void GConfLayer::sync()
+{
+ //Not needed
+}
+
+bool GConfLayer::removeSubTree(QValueSpacePublisher * /*creator*/, Handle /*handle*/)
+{
+ //Not needed
+ return false;
+}
+
+bool GConfLayer::removeValue(QValueSpacePublisher */*creator*/,
+ Handle handle,
+ const QString &subPath)
+{
+ QMutexLocker locker(&m_mutex);
+
+ QString fullPath;
+
+ GConfHandle *sh = gConfHandle(handle);
+ if (!sh)
+ return false;
+
+ if (handle == InvalidHandle) {
+ fullPath = subPath;
+ } else {
+ if (subPath == QLatin1String("/"))
+ fullPath = sh->path;
+ else if (sh->path.endsWith(QLatin1Char('/')) && subPath.startsWith(QLatin1Char('/')))
+ fullPath = sh->path + subPath.mid(1);
+ else if (!sh->path.endsWith(QLatin1Char('/')) && !subPath.startsWith(QLatin1Char('/')))
+ fullPath = sh->path + QLatin1Char('/') + subPath;
+ else
+ fullPath = sh->path + subPath;
+ }
+
+ GConfItem gconfItem(fullPath);
+ gconfItem.unset();
+
+ return true;
+}
+
+void GConfLayer::addWatch(QValueSpacePublisher *, Handle)
+{
+ //Not needed
+}
+
+void GConfLayer::removeWatches(QValueSpacePublisher *, Handle)
+{
+ //Not needed
+}
+
+bool GConfLayer::supportsInterestNotification() const
+{
+ return false;
+}
+
+bool GConfLayer::notifyInterest(Handle, bool)
+{
+ //Not needed
+ return false;
+}
+
+void GConfLayer::notifyChanged(const QString &key, const QVariant & /*value*/)
+{
+ foreach (GConfHandle *handle, m_monitoringHandles.values()) {
+ if (key.startsWith(handle->path)) {
+ emit handleChanged(Handle(handle));
+ }
+ }
+}
+
+#include "moc_gconflayer_linux_p.cpp"
+
+QTM_END_NAMESPACE