/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#ifndef SEARCHRESULTWINDOW_H
#define SEARCHRESULTWINDOW_H

#include "find_global.h"

#include <coreplugin/ioutputpane.h>

#include <QVariant>
#include <QStringList>
#include <QIcon>

QT_BEGIN_NAMESPACE
class QFont;
QT_END_NAMESPACE

namespace Find {
namespace Internal {
    class SearchResultTreeView;
    class SearchResultWindowPrivate;
    class SearchResultWidget;
}
class SearchResultWindow;

struct FIND_EXPORT SearchResultItem
{
    SearchResultItem()
        : textMarkPos(-1),
        textMarkLength(0),
        lineNumber(-1),
        useTextEditorFont(false)
    {
    }

    SearchResultItem(const SearchResultItem &other)
        : path(other.path),
        text(other.text),
        textMarkPos(other.textMarkPos),
        textMarkLength(other.textMarkLength),
        icon(other.icon),
        lineNumber(other.lineNumber),
        useTextEditorFont(other.useTextEditorFont),
        userData(other.userData)
    {
    }

    QStringList path; // hierarchy to the parent item of this item
    QString text; // text to show for the item itself
    int textMarkPos; // 0-based starting position for a mark (-1 for no mark)
    int textMarkLength; // length of the mark (0 for no mark)
    QIcon icon; // icon to show in front of the item (by be null icon to hide)
    int lineNumber; // (0 or -1 for no line number)
    bool useTextEditorFont;
    QVariant userData; // user data for identification of the item
};

class FIND_EXPORT SearchResult : public QObject
{
    Q_OBJECT

public:
    enum AddMode {
        AddSorted,
        AddOrdered
    };

    void setUserData(const QVariant &data);
    QVariant userData() const;
    QString textToReplace() const;
    int count() const;
    void setSearchAgainSupported(bool supported);

public slots:
    void addResult(const QString &fileName, int lineNumber, const QString &lineText,
                   int searchTermStart, int searchTermLength, const QVariant &userData = QVariant());
    void addResults(const QList<SearchResultItem> &items, AddMode mode);
    void finishSearch();
    void setTextToReplace(const QString &textToReplace);
    void restart();
    void setSearchAgainEnabled(bool enabled);

signals:
    void activated(const Find::SearchResultItem &item);
    void replaceButtonClicked(const QString &replaceText, const QList<Find::SearchResultItem> &checkedItems);
    void cancelled();
    void visibilityChanged(bool visible);
    void countChanged(int count);
    void searchAgainRequested();

private:
    SearchResult(Internal::SearchResultWidget *widget);
    friend class SearchResultWindow; // for the constructor

private:
    Internal::SearchResultWidget *m_widget;
    QVariant m_userData;
};

class FIND_EXPORT SearchResultWindow : public Core::IOutputPane
{
    Q_OBJECT

public:
    enum SearchMode {
        SearchOnly,
        SearchAndReplace
    };


    SearchResultWindow(QWidget *newSearchPanel);
    virtual ~SearchResultWindow();
    static SearchResultWindow *instance();

    QWidget *outputWidget(QWidget *);
    QList<QWidget*> toolBarWidgets() const;

    QString displayName() const { return tr("Search Results"); }
    int priorityInStatusBar() const;
    void visibilityChanged(bool visible);
    bool hasFocus() const;
    bool canFocus() const;
    void setFocus();

    bool canNext() const;
    bool canPrevious() const;
    void goToNext();
    void goToPrev();
    bool canNavigate() const;

    void setTextEditorFont(const QFont &font);
    void openNewSearchPanel();

    // The search result window owns the returned SearchResult
    // and might delete it any time, even while the search is running
    // (e.g. when the user clears the search result pane, or if the user opens so many other searches
    // that this search falls out of the history).
    SearchResult *startNewSearch(const QString &label,
                                 const QString &toolTip,
                                 const QString &searchTerm,
                                 SearchMode searchOrSearchAndReplace = SearchOnly,
                                 const QString &cfgGroup = QString());

public slots:
    void clearContents();

private slots:
    void handleExpandCollapseToolButton(bool checked);

private:
    void readSettings();
    void writeSettings();

    Internal::SearchResultWindowPrivate *d;
    static SearchResultWindow *m_instance;
};

} // namespace Find

Q_DECLARE_METATYPE(Find::SearchResultItem)

#endif // SEARCHRESULTWINDOW_H
