/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** If you have questions regarding the use of this file, please contact
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**************************************************************************/

#ifndef NAVIGATORVIEW_H
#define NAVIGATORVIEW_H

#include <qmlmodelview.h>

#include <QWeakPointer>

QT_BEGIN_NAMESPACE
class QTreeView;
class QStandardItem;
class QItemSelection;
class QModelIndex;
QT_END_NAMESPACE

namespace QmlDesigner {

class NavigatorWidget;
class NavigatorTreeModel;
class IconCheckboxItemDelegate;
class IdItemDelegate;

class NavigatorView : public QmlModelView
{
    Q_OBJECT

public:
    NavigatorView(QObject* parent = 0);
    ~NavigatorView();

    NavigatorWidget *widget();

    // AbstractView
    void modelAttached(Model *model);
    void modelAboutToBeDetached(Model *model);

    void importsChanged(const QList<Import> &addedImports, const QList<Import> &removedImports);

    void nodeCreated(const ModelNode &createdNode);
    void nodeRemoved(const ModelNode &removedNode, const NodeAbstractProperty &parentProperty, PropertyChangeFlags propertyChange);
    void propertiesRemoved(const QList<AbstractProperty> &propertyList);
    void variantPropertiesChanged(const QList<VariantProperty> &propertyList, PropertyChangeFlags propertyChange);
    void bindingPropertiesChanged(const QList<BindingProperty> &propertyList, PropertyChangeFlags propertyChange);

    void nodeAboutToBeRemoved(const ModelNode &removedNode);
    void nodeOrderChanged(const NodeListProperty &listProperty, const ModelNode &movedNode, int oldIndex);

    void nodeAboutToBeReparented(const ModelNode &node, const NodeAbstractProperty &newPropertyParent, const NodeAbstractProperty &oldPropertyParent, AbstractView::PropertyChangeFlags propertyChange);
    void nodeReparented(const ModelNode &node, const NodeAbstractProperty &newPropertyParent, const NodeAbstractProperty &oldPropertyParent, AbstractView::PropertyChangeFlags propertyChange);
    void rootNodeTypeChanged(const QString &type, int majorVersion, int minorVersion);
    void nodeIdChanged(const ModelNode& node, const QString& newId, const QString& oldId);
    void propertiesAboutToBeRemoved(const QList<AbstractProperty>& propertyList);

    void selectedNodesChanged(const QList<ModelNode> &selectedNodeList,
                                      const QList<ModelNode> &lastSelectedNodeList);
    void auxiliaryDataChanged(const ModelNode &node, const QString &name, const QVariant &data);
    void scriptFunctionsChanged(const ModelNode &node, const QStringList &scriptFunctionList);
    void instancePropertyChange(const QList<QPair<ModelNode, QString> > &propertyList);
    void instancesCompleted(const QVector<ModelNode> &completedNodeList);
    void instanceInformationsChange(const QMultiHash<ModelNode, InformationName> &informationChangeHash);
    void instancesRenderImageChanged(const QVector<ModelNode> &nodeList);
    void instancesPreviewImageChanged(const QVector<ModelNode> &nodeList);
    void instancesChildrenChanged(const QVector<ModelNode> &nodeList);
    void nodeSourceChanged(const ModelNode &modelNode, const QString &newNodeSource);

    void rewriterBeginTransaction();
    void rewriterEndTransaction();

    void actualStateChanged(const ModelNode &node);

private slots:
//    void handleChangedItem(QStandardItem * item);
    void changeSelection(const QItemSelection &selected, const QItemSelection &deselected);
    void updateItemSelection();
    void changeToComponent(const QModelIndex &index);

    void leftButtonClicked();
    void rightButtonClicked();
    void upButtonClicked();
    void downButtonClicked();

protected: //functions
    QTreeView *treeWidget();
    NavigatorTreeModel *treeModel();
    bool blockSelectionChangedSignal(bool block);
    void expandRecursively(const QModelIndex &index);

private:
    bool m_blockSelectionChangedSignal;

    QWeakPointer<NavigatorWidget> m_widget;
    QWeakPointer<NavigatorTreeModel> m_treeModel;

    friend class TestNavigator;
};

}
#endif // NAVIGATORVIEW_H
