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LibVT: Add scrollback history to VT::Terminal

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The default (hard-coded) history size is 500 lines. When the history is
altered, the TerminalClient is notified via terminal_history_changed().
This commit is contained in:
Andreas Kling 2019-08-19 19:07:52 +02:00
parent a5cdd0afa5
commit 462336ed49
2 changed files with 12 additions and 0 deletions
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7
Libraries/LibVT/Terminal.cpp
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@ -666,6 +666,13 @@ void Terminal::scroll_up()
{
// NOTE: We have to invalidate the cursor first.
invalidate_cursor();
if (m_scroll_region_top == 0) {
auto line = move(m_lines.ptr_at(m_scroll_region_top));
m_history.append(move(line));
while (m_history.size() > max_history_size())
m_history.take_first();
m_client.terminal_history_changed();
}
m_lines.remove(m_scroll_region_top);
m_lines.insert(m_scroll_region_bottom, make<Line>(m_columns));
m_need_full_flush = true;