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LibVT: Implement support for Cursor Keys Mode (DECCKM)

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Jelle Raaijmakers 2021-09-30 11:44:20 +02:00 • committed by Linus Groh
parent e33e0e6a27
commit aaa1382bd6
2 changed files with 14 additions and 2 deletions
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10
Userland/Libraries/LibVT/Terminal.cpp
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@ -89,6 +89,11 @@ void Terminal::alter_private_mode(bool should_set, Parameters params)
for (auto mode : params) { for (auto mode : params) {
switch (mode) { switch (mode) {
case 1:
// Cursor Keys Mode (DECCKM)
dbgln_if(TERMINAL_DEBUG, "Setting cursor keys mode (should_set={})", should_set);
m_cursor_keys_mode = should_set ? CursorKeysMode::Application : CursorKeysMode::Cursor;
break;
case 3: { case 3: {
// 80/132-column mode (DECCOLM) // 80/132-column mode (DECCOLM)
unsigned new_columns = should_set ? 132 : 80; unsigned new_columns = should_set ? 132 : 80;
@ -1297,10 +1302,11 @@ void Terminal::handle_key_press(KeyCode key, u32 code_point, u8 flags)
unsigned modifier_mask = int(shift) + (int(alt) << 1) + (int(ctrl) << 2); unsigned modifier_mask = int(shift) + (int(alt) << 1) + (int(ctrl) << 2);
auto emit_final_with_modifier = [this, modifier_mask](char final) { auto emit_final_with_modifier = [this, modifier_mask](char final) {
char escape_character = m_cursor_keys_mode == CursorKeysMode::Application ? 'O' : '[';
if (modifier_mask) if (modifier_mask)
emit_string(String::formatted("\e[1;{}{:c}", modifier_mask + 1, final)); emit_string(String::formatted("\e{}1;{}{:c}", escape_character, modifier_mask + 1, final));
else else
emit_string(String::formatted("\e[{:c}", final)); emit_string(String::formatted("\e{}{:c}", escape_character, final));
}; };
auto emit_tilde_with_modifier = [this, modifier_mask](unsigned num) { auto emit_tilde_with_modifier = [this, modifier_mask](unsigned num) {
if (modifier_mask) if (modifier_mask)

6
Userland/Libraries/LibVT/Terminal.h
View file

@ -37,6 +37,11 @@ enum CursorStyle {
SteadyBar SteadyBar
}; };
enum CursorKeysMode {
Application,
Cursor,
};
class TerminalClient { class TerminalClient {
public: public:
virtual ~TerminalClient() { } virtual ~TerminalClient() { }
@ -437,6 +442,7 @@ protected:
Optional<u16> m_column_before_carriage_return; Optional<u16> m_column_before_carriage_return;
bool m_controls_are_logically_generated { false }; bool m_controls_are_logically_generated { false };
CursorKeysMode m_cursor_keys_mode { Cursor };
}; };
} }