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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** This file is part of Qt Creator.
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** General Public License version 2.1 as published by the Free Software
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****************************************************************************/

#ifndef QMLJSHOVERHANDLER_H
#define QMLJSHOVERHANDLER_H

#include <qmljs/qmljsmodelmanagerinterface.h>
#include <texteditor/basehoverhandler.h>

#include <QColor>

QT_BEGIN_NAMESPACE
template <class> class QList;
QT_END_NAMESPACE

namespace Core {
class IEditor;
}

namespace TextEditor {
class ITextEditor;
}

namespace QmlJS {
class ScopeChain;
class Context;
typedef QSharedPointer<const Context> ContextPtr;
class Value;
}

namespace QmlJSEditor {
class QmlJSTextEditorWidget;

namespace Internal {

class HoverHandler : public TextEditor::BaseHoverHandler
{
    Q_OBJECT
public:
    HoverHandler(QObject *parent = 0);

private:
    void reset();

    virtual bool acceptEditor(Core::IEditor *editor);
    virtual void identifyMatch(TextEditor::ITextEditor *editor, int pos);
    virtual void operateTooltip(TextEditor::ITextEditor *editor, const QPoint &point);

    bool matchDiagnosticMessage(QmlJSEditor::QmlJSTextEditorWidget *qmlEditor, int pos);
    bool matchColorItem(const QmlJS::ScopeChain &lookupContext,
                        const QmlJS::Document::Ptr &qmlDocument,
                        const QList<QmlJS::AST::Node *> &astPath,
                        unsigned pos);
    void handleOrdinaryMatch(const QmlJS::ScopeChain &lookupContext,
                             QmlJS::AST::Node *node);
    void handleImport(const QmlJS::ScopeChain &lookupContext,
                      QmlJS::AST::UiImport *node);

    void prettyPrintTooltip(const QmlJS::Value *value,
                            const QmlJS::ContextPtr &context);

    TextEditor::HelpItem qmlHelpItem(const QmlJS::ScopeChain &lookupContext,
                                     const QmlJS::Document::Ptr &qmlDocument,
                                     QmlJS::AST::Node *node) const;

    QmlJS::ModelManagerInterface *m_modelManager;
    QColor m_colorTip;
};

} // namespace Internal
} // namespace QmlJSEditor

#endif // QMLJSHOVERHANDLER_H