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54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
/*
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* Copyright (C) 2021 CutefishOS Team.
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*
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* Author: revenmartin <revenmartin@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pathhistory.h"
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#include <QUrl>
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PathHistory::PathHistory(QObject *parent)
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: QObject(parent)
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{
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}
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void PathHistory::append(const QUrl &path)
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{
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m_prevHistory.append(path);
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}
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QUrl PathHistory::posteriorPath()
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{
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if (m_postHistory.isEmpty())
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return QUrl();
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return m_postHistory.takeLast();
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}
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QUrl PathHistory::previousPath()
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{
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if (m_prevHistory.isEmpty())
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return QUrl();
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if (m_prevHistory.length() < 2)
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return m_prevHistory.at(0);
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m_postHistory.append(m_prevHistory.takeLast());
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return m_prevHistory.takeLast();
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}
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