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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QQMLLISTMODEL_H
#define QQMLLISTMODEL_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qqml.h>
#include <private/qqmlcustomparser_p.h>
#include <QtCore/QObject>
#include <QtCore/QStringList>
#include <QtCore/QHash>
#include <QtCore/QList>
#include <QtCore/QVariant>
#include <QtCore/qabstractitemmodel.h>
#include <private/qv4engine_p.h>
#include <private/qpodvector_p.h>
QT_BEGIN_NAMESPACE
class QQmlListModelWorkerAgent;
class ListModel;
class ListLayout;
namespace QV4 {
struct ModelObject;
}
class Q_QML_PRIVATE_EXPORT QQmlListModel : public QAbstractListModel
{
Q_OBJECT
Q_PROPERTY(int count READ count NOTIFY countChanged)
Q_PROPERTY(bool dynamicRoles READ dynamicRoles WRITE setDynamicRoles)
public:
QQmlListModel(QObject *parent=0);
~QQmlListModel();
QModelIndex index(int row, int column, const QModelIndex &parent) const;
int rowCount(const QModelIndex &parent) const;
QVariant data(const QModelIndex &index, int role) const;
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
QHash<int,QByteArray> roleNames() const;
QVariant data(int index, int role) const;
int count() const;
Q_INVOKABLE void clear();
Q_INVOKABLE void remove(QQmlV4Function *args);
Q_INVOKABLE void append(QQmlV4Function *args);
Q_INVOKABLE void insert(QQmlV4Function *args);
Q_INVOKABLE QQmlV4Handle get(int index) const;
Q_INVOKABLE void set(int index, const QQmlV4Handle &);
Q_INVOKABLE void setProperty(int index, const QString& property, const QVariant& value);
Q_INVOKABLE void move(int from, int to, int count);
Q_INVOKABLE void sync();
QQmlListModelWorkerAgent *agent();
bool dynamicRoles() const { return m_dynamicRoles; }
void setDynamicRoles(bool enableDynamicRoles);
Q_SIGNALS:
void countChanged();
private:
friend class QQmlListModelParser;
friend class QQmlListModelWorkerAgent;
friend class ModelObject;
friend struct QV4::ModelObject;
friend class ModelNodeMetaObject;
friend class ListModel;
friend class ListElement;
friend class DynamicRoleModelNode;
friend class DynamicRoleModelNodeMetaObject;
// Constructs a flat list model for a worker agent
QQmlListModel(QQmlListModel *orig, QQmlListModelWorkerAgent *agent);
QQmlListModel(const QQmlListModel *owner, ListModel *data, QV4::ExecutionEngine *engine, QObject *parent=0);
QV4::ExecutionEngine *engine() const;
inline bool canMove(int from, int to, int n) const { return !(from+n > count() || to+n > count() || from < 0 || to < 0 || n < 0); }
QQmlListModelWorkerAgent *m_agent;
mutable QV4::ExecutionEngine *m_engine;
bool m_mainThread;
bool m_primary;
bool m_dynamicRoles;
ListLayout *m_layout;
ListModel *m_listModel;
QVector<class DynamicRoleModelNode *> m_modelObjects;
QVector<QString> m_roles;
int m_uid;
struct ElementSync
{
ElementSync() : src(0), target(0) {}
DynamicRoleModelNode *src;
DynamicRoleModelNode *target;
};
int getUid() const { return m_uid; }
static void sync(QQmlListModel *src, QQmlListModel *target, QHash<int, QQmlListModel *> *targetModelHash);
static QQmlListModel *createWithOwner(QQmlListModel *newOwner);
void emitItemsChanged(int index, int count, const QVector<int> &roles);
void emitItemsAboutToBeRemoved(int index, int count);
void emitItemsRemoved(int index, int count);
void emitItemsAboutToBeInserted(int index, int count);
void emitItemsInserted(int index, int count);
void emitItemsAboutToBeMoved(int from, int to, int n);
void emitItemsMoved(int from, int to, int n);
};
// ### FIXME
class QQmlListElement : public QObject
{
Q_OBJECT
};
class QQmlListModelParser : public QQmlCustomParser
{
public:
enum PropertyType {
Invalid,
Boolean,
Number,
String,
Script
};
QQmlListModelParser() : QQmlCustomParser(QQmlCustomParser::AcceptsSignalHandlers) {}
virtual void verifyBindings(const QV4::CompiledData::Unit *qmlUnit, const QList<const QV4::CompiledData::Binding *> &bindings);
virtual void applyBindings(QObject *obj, QQmlCompiledData *cdata, const QList<const QV4::CompiledData::Binding *> &bindings);
private:
bool verifyProperty(const QV4::CompiledData::Unit *qmlUnit, const QV4::CompiledData::Binding *binding);
// returns true if a role was set
bool applyProperty(const QV4::CompiledData::Unit *qmlUnit, const QV4::CompiledData::Binding *binding, ListModel *model, int outterElementIndex);
bool definesEmptyList(const QString &);
QString listElementTypeName;
};
QT_END_NAMESPACE
QML_DECLARE_TYPE(QQmlListModel)
QML_DECLARE_TYPE(QQmlListElement)
#endif // QQMLLISTMODEL_H
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