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#ifndef NAVIGATORVIEW_H
#define NAVIGATORVIEW_H

#include <abstractview.h>

#include <QPointer>

QT_BEGIN_NAMESPACE
class QTreeView;
class QItemSelection;
class QModelIndex;
QT_END_NAMESPACE

namespace QmlDesigner {

class NavigatorWidget;
class NavigatorTreeModel;

class NavigatorView : public AbstractView
{
    Q_OBJECT

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

    bool hasWidget() const;
    WidgetInfo widgetInfo();

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

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

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

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

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

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

    void rewriterBeginTransaction() Q_DECL_OVERRIDE;
    void rewriterEndTransaction() Q_DECL_OVERRIDE;

    void currentStateChanged(const ModelNode &node) Q_DECL_OVERRIDE;

    void instancesToken(const QString &tokenName, int tokenNumber, const QVector<ModelNode> &nodeVector) Q_DECL_OVERRIDE;

private slots:
    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;

    QPointer<NavigatorWidget> m_widget;
    QPointer<NavigatorTreeModel> m_treeModel;

    friend class TestNavigator;
};

}
#endif // NAVIGATORVIEW_H
