mirrors/ladybird
0
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-04-23 13:05:12 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 10

LibLine: Ask for cursor position once and handle the rest internally

Browse source 
Prior to this, writing to stdin while a display refresh was happening
corrupted the input and displayed garbage.
This commit is contained in:
AnotherTest 2020-04-11 17:22:24 +04:30 • committed by Andreas Kling
parent c993c7e3dc
commit b59a391a78
Notes: sideshowbarker 2024-07-19 07:42:55 +09:00
1 changed files with 6 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
Libraries/LibLine/Editor.cpp
View file

@ -43,7 +43,6 @@ Editor::Editor()
} else {
m_num_columns = ws.ws_col;
m_num_lines = ws.ws_row;
dbg() << m_num_lines;
}
}
@ -131,10 +130,9 @@ String Editor::get_line(const String& prompt)
{
set_prompt(prompt);
reset();
refresh_display();
set_origin();
m_history_cursor = m_history.size();
m_cursor = 0;
for (;;) {
refresh_display();
char keybuf[16];
@ -328,7 +326,8 @@ String Editor::get_line(const String& prompt)
// we probably have some suggestions drawn
// let's clean them up
if (m_lines_used_for_last_suggestions) {
vt_clear_lines(1, m_lines_used_for_last_suggestions);
vt_clear_lines(0, m_lines_used_for_last_suggestions);
vt_move_relative(-m_lines_used_for_last_suggestions, 0);
m_refresh_needed = true;
m_lines_used_for_last_suggestions = 0;
}
@ -374,7 +373,8 @@ String Editor::get_line(const String& prompt)
if (ch == 0xc) { // ^L
printf("\033[3J\033[H\033[2J"); // Clear screen.
vt_move_absolute(1, 1);
set_origin();
m_origin_x = 1;
m_origin_y = 1;
m_refresh_needed = true;
continue;
}
@ -415,7 +415,6 @@ void Editor::recalculate_origin()
// compensate for that
if (m_cached_prompt_length >= m_num_columns) {
auto added_lines = (m_cached_prompt_length + 1) / m_num_columns - 1;
dbg() << "added lines: " << added_lines;
m_origin_x += added_lines;
}
@ -488,8 +487,8 @@ void Editor::refresh_display()
// FIXME: handle multiline stuff
if (!has_cleaned_up) {
cleanup();
set_origin();
}
vt_move_absolute(m_origin_x, m_origin_y);
fputs(m_new_prompt.characters(), stdout);