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NCursesUI: Handle CSI in 8-bit mode as well

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This commit is contained in:
Maxime Coste 2018-12-09 11:20:03 +11:00
parent e90e77e5fc
commit 1670a7514a
1 changed files with 59 additions and 50 deletions
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109
src/ncurses_ui.cc
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@ -656,62 +656,68 @@ Optional<Key> NCursesUI::get_next_key()
return {}; return {};
}; };
auto parse_csi = [this]() -> Optional<Key> {
const Codepoint c1 = wgetch(m_window);
switch (c1)
{
case 'I': return {Key::FocusIn};
case 'O': return {Key::FocusOut};
case '1':
{
const Codepoint c2 = wgetch(m_window);
if (c2 != ';')
{
ungetch(c2); ungetch(c1);
break;
}
const Codepoint c3 = wgetch(m_window);
function<Key(Key)> f;
switch (c3)
{
case '2': f = shift; break;
case '3': f = alt; break;
case '4': f = shift_alt; break;
case '5': f = ctrl; break;
case '6': f = shift_ctrl; break;
case '7': f = alt_ctrl; break;
case '8': f = shift_alt_ctrl; break;
}
if (!f)
{
ungetch(c3); ungetch(c2); ungetch(c1);
break;
}
const Codepoint c4 = wgetch(m_window);
switch (c4)
{
case 'A': return f(Key::Up);
case 'B': return f(Key::Down);
case 'C': return f(Key::Right);
case 'D': return f(Key::Left);
case 'H': return f(Key::Home);
case 'F': return f(Key::End);
}
ungetch(c4); ungetch(c3); ungetch(c2); ungetch(c1);
break;
}
default:
ungetch(c1);
break;
}
return {};
};
if (c == 27) if (c == 27)
{ {
wtimeout(m_window, 0); wtimeout(m_window, 0);
const int new_c = wgetch(m_window); const int new_c = wgetch(m_window);
if (new_c == '[') // potential CSI if (new_c == '[') // potential CSI
{ {
const Codepoint c1 = wgetch(m_window); if (auto key = parse_csi())
switch (c1) return key;
{
case 'I': return {Key::FocusIn};
case 'O': return {Key::FocusOut};
case '1':
{
const Codepoint c2 = wgetch(m_window);
if (c2 != ';')
{
ungetch(c2); ungetch(c1);
break;
}
const Codepoint c3 = wgetch(m_window);
function<Key(Key)> f;
switch (c3)
{
case '2': f = shift; break;
case '3': f = alt; break;
case '4': f = shift_alt; break;
case '5': f = ctrl; break;
case '6': f = shift_ctrl; break;
case '7': f = alt_ctrl; break;
case '8': f = shift_alt_ctrl; break;
}
if (!f)
{
ungetch(c3); ungetch(c2); ungetch(c1);
break;
}
const Codepoint c4 = wgetch(m_window);
switch (c4)
{
case 'A': return f(Key::Up);
case 'B': return f(Key::Down);
case 'C': return f(Key::Right);
case 'D': return f(Key::Left);
case 'H': return f(Key::Home);
case 'F': return f(Key::End);
}
ungetch(c4); ungetch(c3); ungetch(c2); ungetch(c1);
break;
}
default:
ungetch(c1);
break;
}
} }
wtimeout(m_window, -1); wtimeout(m_window, -1);
@ -720,6 +726,9 @@ Optional<Key> NCursesUI::get_next_key()
else else
return {Key::Escape}; return {Key::Escape};
} }
else if (c == 0x9b)
return parse_csi();
return parse_key(c); return parse_key(c);
} }