qt-creator/src/plugins/coreplugin/ifile.cpp

/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.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.
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**************************************************************************/

#include "ifile.h"

#include "infobar.h"

#include <QtCore/QFile>

namespace Core {

IFile::IFile(QObject *parent) : QObject(parent), m_infoBar(0), m_hasWriteWarning(false), m_restored(false)
{
}

IFile::~IFile()
{
    removeAutoSaveFile();
    delete m_infoBar;
}

IFile::ReloadBehavior IFile::reloadBehavior(ChangeTrigger state, ChangeType type) const
{
    if (type == TypePermissions)
        return BehaviorSilent;
    if (type == TypeContents && state == TriggerInternal && !isModified())
        return BehaviorSilent;
    return BehaviorAsk;
}

void IFile::checkPermissions()
{
}

bool IFile::shouldAutoSave() const
{
    return false;
}

bool IFile::autoSave(QString *errorString, const QString &fileName)
{
    if (!save(errorString, fileName, true))
        return false;
    m_autoSaveName = fileName;
    return true;
}

static const char kRestoredAutoSave[] = "RestoredAutoSave";

void IFile::setRestoredFrom(const QString &name)
{
    m_autoSaveName = name;
    m_restored = true;
    InfoBarEntry info(QLatin1String(kRestoredAutoSave),
          tr("File was restored from auto-saved copy. "
             "Use <i>Save</i> to confirm, or <i>Revert to Saved</i> to discard changes."));
    infoBar()->addInfo(info);
}

void IFile::removeAutoSaveFile()
{
    if (!m_autoSaveName.isEmpty()) {
        QFile::remove(m_autoSaveName);
        m_autoSaveName.clear();
        if (m_restored) {
            m_restored = false;
            infoBar()->removeInfo(QLatin1String(kRestoredAutoSave));
        }
    }
}

InfoBar *IFile::infoBar()
{
    if (!m_infoBar)
        m_infoBar = new InfoBar;
    return m_infoBar;
}

} // namespace Core