/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** GNU Lesser General Public License Usage
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** 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
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#include "linenumberfilter.h"
#include "itexteditor.h"

#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/coreconstants.h>
#include <coreplugin/modemanager.h>

#include <QtCore/QVariant>

using namespace Core;
using namespace Locator;
using namespace TextEditor;
using namespace TextEditor::Internal;

LineNumberFilter::LineNumberFilter(QObject *parent)
  : ILocatorFilter(parent)
{
    setShortcutString(QString(QLatin1Char('l')));
    setIncludedByDefault(true);
}

QList<FilterEntry> LineNumberFilter::matchesFor(QFutureInterface<Locator::FilterEntry> &, const QString &entry)
{
    bool ok;
    QList<FilterEntry> value;
    int line = entry.toInt(&ok);
    if (line > 0 && currentTextEditor())
        value.append(FilterEntry(this, tr("Line %1").arg(line), QVariant(line)));
    return value;
}

void LineNumberFilter::accept(FilterEntry selection) const
{
    ITextEditor *editor = currentTextEditor();
    if (editor) {
        Core::EditorManager *editorManager = Core::EditorManager::instance();
        editorManager->addCurrentPositionToNavigationHistory();
        editor->gotoLine(selection.internalData.toInt());
        editor->widget()->setFocus();
        Core::ModeManager::instance()->activateMode(Core::Constants::MODE_EDIT);
    }
}

ITextEditor *LineNumberFilter::currentTextEditor() const
{
    Core::EditorManager *editorManager = Core::EditorManager::instance();
    if (!editorManager->currentEditor())
        return 0;
    return qobject_cast<TextEditor::ITextEditor*>(editorManager->currentEditor());
}