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LibLine+Shell: Allow some programs to modify the current termios

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This setting can be controlled by setting the
PROGRAMS_ALLOWED_TO_MODIFY_DEFAULT_TERMIOS _local_ shell variable to a
list containing such programs.
This commit is contained in:
Ali Mohammad Pur 2021-05-24 16:50:16 +04:30 • committed by Ali Mohammad Pur
parent e318f12263
commit b2ef18d538
4 changed files with 50 additions and 11 deletions
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22
Userland/Libraries/LibLine/Editor.cpp
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@ -141,10 +141,6 @@ void Editor::set_default_keybinds()
{
register_key_input_callback(ctrl('N'), EDITOR_INTERNAL_FUNCTION(search_forwards));
register_key_input_callback(ctrl('P'), EDITOR_INTERNAL_FUNCTION(search_backwards));
// Normally ^W. `stty werase \^n` can change it to ^N (or something else), but Serenity doesn't have `stty` yet.
register_key_input_callback(m_termios.c_cc[VWERASE], EDITOR_INTERNAL_FUNCTION(erase_word_backwards));
// Normally ^U. `stty kill \^n` can change it to ^N (or something else), but Serenity doesn't have `stty` yet.
register_key_input_callback(m_termios.c_cc[VKILL], EDITOR_INTERNAL_FUNCTION(kill_line));
register_key_input_callback(ctrl('A'), EDITOR_INTERNAL_FUNCTION(go_home));
register_key_input_callback(ctrl('B'), EDITOR_INTERNAL_FUNCTION(cursor_left_character));
register_key_input_callback(ctrl('D'), EDITOR_INTERNAL_FUNCTION(erase_character_forwards));
@ -154,7 +150,6 @@ void Editor::set_default_keybinds()
register_key_input_callback(ctrl('H'), EDITOR_INTERNAL_FUNCTION(erase_character_backwards));
// DEL - Some terminals send this instead of ^H.
register_key_input_callback((char)127, EDITOR_INTERNAL_FUNCTION(erase_character_backwards));
register_key_input_callback(m_termios.c_cc[VERASE], EDITOR_INTERNAL_FUNCTION(erase_character_backwards));
register_key_input_callback(ctrl('K'), EDITOR_INTERNAL_FUNCTION(erase_to_end));
register_key_input_callback(ctrl('L'), EDITOR_INTERNAL_FUNCTION(clear_screen));
register_key_input_callback(ctrl('R'), EDITOR_INTERNAL_FUNCTION(enter_search));
@ -175,6 +170,13 @@ void Editor::set_default_keybinds()
register_key_input_callback(Key { 'l', Key::Alt }, EDITOR_INTERNAL_FUNCTION(lowercase_word));
register_key_input_callback(Key { 'u', Key::Alt }, EDITOR_INTERNAL_FUNCTION(uppercase_word));
register_key_input_callback(Key { 't', Key::Alt }, EDITOR_INTERNAL_FUNCTION(transpose_words));
// Register these last to all the user to override the previous key bindings
// Normally ^W. `stty werase \^n` can change it to ^N (or something else).
register_key_input_callback(m_termios.c_cc[VWERASE], EDITOR_INTERNAL_FUNCTION(erase_word_backwards));
// Normally ^U. `stty kill \^n` can change it to ^N (or something else).
register_key_input_callback(m_termios.c_cc[VKILL], EDITOR_INTERNAL_FUNCTION(kill_line));
register_key_input_callback(m_termios.c_cc[VERASE], EDITOR_INTERNAL_FUNCTION(erase_character_backwards));
}
Editor::Editor(Configuration configuration)
@ -552,6 +554,16 @@ void Editor::initialize()
m_initialized = true;
}
void Editor::refetch_default_termios()
{
struct termios termios;
tcgetattr(0, &termios);
m_default_termios = termios;
if (m_configuration.operation_mode == Configuration::Full)
termios.c_lflag &= ~(ECHO | ICANON);
m_termios = termios;
}
void Editor::interrupted()
{
if (m_is_searching)