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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CONTEXTKITLAYER_P_H
#define CONTEXTKITLAYER_P_H
#include "qvaluespace.h"
#include "qvaluespacepublisher.h"
#include "qvaluespace_p.h"
#include <QSet>
#include <QStringList>
#include <contextproperty.h>
#include <context/property.h>
#include <context/service.h>
#include <contextregistryinfo.h>
QTM_BEGIN_NAMESPACE
using namespace QValueSpace;
class ContextKitPath
{
public:
enum PathType {
DotPath,
SlashPath
};
ContextKitPath();
ContextKitPath(QString path);
ContextKitPath(QString path, PathType type);
ContextKitPath(const ContextKitPath &other);
QString toQtPath() const;
QString toNative() const;
inline PathType type() const { return m_type; }
bool includes(ContextKitPath &other) const;
bool isRegistered() const;
bool isProvided() const;
inline int size() const { return parts.size(); }
inline QString at(int i) const { return parts.at(i); }
ContextKitPath &operator=(const ContextKitPath &other);
bool operator==(const ContextKitPath &other) const;
ContextKitPath operator+(const QString &str) const;
ContextKitPath operator-(const ContextKitPath &other) const;
ContextKitPath operator+(const ContextKitPath &other) const;
private:
QStringList parts;
PathType m_type;
void initFromPath(QString path);
};
class ContextKitHandle : public QObject
{
Q_OBJECT
public:
ContextKitHandle(ContextKitHandle *parent, const QString &root,
QValueSpace::LayerOptions opts);
~ContextKitHandle();
bool value(const QString &path, QVariant *data);
bool setValue(const QString &path, const QVariant &data);
bool unsetValue(const QString &path);
void subscribe();
void unsubscribe();
QSet<QString> children();
ContextKitPath path;
signals:
void valueChanged();
void interestChanged(QString path, bool status);
private:
QHash<QString, ContextProperty*> readProps;
QHash<QString, ContextProvider::Property*> writeProps;
ContextProvider::Service *service;
bool subscribed;
void insertRead(const ContextKitPath &path);
ContextProvider::Property *insertWrite(const ContextKitPath &path);
private slots:
void updateSubtrees();
void on_firstAppeared(QString key);
void on_lastDisappeared(QString key);
};
class ContextKitLayer : public QAbstractValueSpaceLayer
{
Q_OBJECT
public:
ContextKitLayer();
virtual ~ContextKitLayer();
/* ValueSpaceLayer interface - Common functions */
bool startup(Type);
Handle item(Handle parent, const QString &);
void removeHandle(Handle);
void setProperty(Handle handle, Properties);
bool value(Handle, QVariant *);
bool value(Handle, const QString &, QVariant *);
QSet<QString> children(Handle);
/* ValueSpaceLayer interface - QValueSpaceSubscriber functions */
bool supportsInterestNotification() const { return true; }
bool notifyInterest(Handle handle, bool interested);
/* ValueSpaceLayer interface - QValueSpacePublisher functions */
bool setValue(QValueSpacePublisher *vsp, Handle handle,
const QString &path, const QVariant &value);
bool removeValue(QValueSpacePublisher *vsp, Handle handle,
const QString &path);
bool removeSubTree(QValueSpacePublisher *vsp, Handle handle);
void addWatch(QValueSpacePublisher *, Handle);
void removeWatches(QValueSpacePublisher *, Handle);
void sync();
virtual QValueSpace::LayerOptions layerOptions() const = 0;
virtual QUuid id() = 0;
private slots:
void contextHandleChanged();
private:
static ContextKitHandle *handleToCKHandle(Handle handle);
};
class ContextKitCoreLayer : public ContextKitLayer
{
Q_OBJECT
public:
QValueSpace::LayerOptions layerOptions() const;
QUuid id();
QString name();
unsigned int order();
static ContextKitCoreLayer *instance();
};
class ContextKitNonCoreLayer : public ContextKitLayer
{
Q_OBJECT
public:
QValueSpace::LayerOptions layerOptions() const;
QUuid id();
QString name();
unsigned int order();
static ContextKitNonCoreLayer *instance();
};
QTM_END_NAMESPACE
#endif // CONTEXTKITLAYER_P_H
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