/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** 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
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** 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.
**
****************************************************************************/

#ifndef QMLJSFINDREFERENCES_H
#define QMLJSFINDREFERENCES_H

#include <QMutex>
#include <QObject>
#include <QFuture>
#include <QFutureWatcher>
#include <QPointer>
#include <utils/filesearch.h>
#include <qmljs/qmljsdocument.h>

QT_FORWARD_DECLARE_CLASS(QTimer)

namespace Find {
    struct SearchResultItem;
    class SearchResult;
} // namespace Find

namespace QmlJSEditor {

class FindReferences: public QObject
{
    Q_OBJECT
public:
    class Usage
    {
    public:
        Usage()
            : line(0), col(0), len(0) {}

        Usage(const QString &path, const QString &lineText, int line, int col, int len)
            : path(path), lineText(lineText), line(line), col(col), len(len) {}

    public:
        QString path;
        QString lineText;
        int line;
        int col;
        int len;
    };

public:
    FindReferences(QObject *parent = 0);
    virtual ~FindReferences();

Q_SIGNALS:
    void changed();

public:
    void findUsages(const QString &fileName, quint32 offset);
    void renameUsages(const QString &fileName, quint32 offset,
                      const QString &replacement = QString());

private Q_SLOTS:
    void displayResults(int first, int last);
    void searchFinished();
    void cancel();
    void setPaused(bool paused);
    void openEditor(const Find::SearchResultItem &item);
    void onReplaceButtonClicked(const QString &text, const QList<Find::SearchResultItem> &items);

private:
    QPointer<Find::SearchResult> m_currentSearch;
    QFutureWatcher<Usage> m_watcher;
};

} // namespace QmlJSEditor

#endif // QMLJSFINDREFERENCES_H