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Fix selection list display glitches

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This commit is contained in:
Pirmin Kalberer 2019-09-18 23:08:00 +02:00
parent 0c9a62aeec
commit 639a316677
1 changed files with 36 additions and 23 deletions
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59
src/fuzzysearch.rs
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@ -1,4 +1,4 @@
use ansi_term::Colour;
use ansi_term::{ANSIString, ANSIStrings, Colour, Style};
use crossterm::{cursor, terminal, ClearType, InputEvent, KeyEvent, RawScreen};
use std::io::Write;
use sublime_fuzzy::best_match;
@ -29,9 +29,8 @@ pub fn interactive_fuzzy_search(lines: &Vec<&str>, max_results: usize) -> Select
let mut sync_stdin = input.read_sync();
while state == State::Selecting {
let mut search_result = fuzzy_search(&searchinput, &lines, max_results);
let selected_lines: Vec<String> =
search_result.iter().map(|item| highlight(&item)).collect();
let mut selected_lines = fuzzy_search(&searchinput, &lines, max_results);
let num_lines = selected_lines.len();
paint_selection_list(&selected_lines, selected);
if let Some(ev) = sync_stdin.next() {
match ev {
@ -50,10 +49,18 @@ pub fn interactive_fuzzy_search(lines: &Vec<&str>, max_results: usize) -> Select
}
}
KeyEvent::Char('\n') => {
state = State::Selected(search_result.remove(selected).text);
state = if selected_lines.len() > 0 {
State::Selected(selected_lines.remove(selected).text)
} else {
State::Edit("".to_string())
};
}
KeyEvent::Char('\t') | KeyEvent::Right => {
state = State::Edit(search_result.remove(selected).text);
state = if selected_lines.len() > 0 {
State::Edit(selected_lines.remove(selected).text)
} else {
State::Edit("".to_string())
};
}
KeyEvent::Char(ch) => {
searchinput.push(ch);
@ -70,16 +77,16 @@ pub fn interactive_fuzzy_search(lines: &Vec<&str>, max_results: usize) -> Select
_ => {}
}
}
cursor.move_up(selected_lines.len() as u16);
if num_lines > 0 {
cursor.move_up(num_lines as u16);
}
}
let (_x, y) = cursor.pos();
let _ = cursor.goto(0, y - 1);
let _ = cursor.show();
let _ = RawScreen::disable_raw_mode();
}
let terminal = terminal();
terminal.clear(ClearType::FromCursorDown).unwrap();
terminal().clear(ClearType::FromCursorDown).unwrap();
match state {
State::Selected(line) => SelectionResult::Selected(line),
@ -125,33 +132,39 @@ pub fn fuzzy_search(searchstr: &str, lines: &Vec<&str>, max_results: usize) -> V
results
}
fn highlight(textmatch: &Match) -> String {
let hlcol = Colour::Cyan;
fn highlight(textmatch: &Match, normal: Style, highlighted: Style) -> Vec<ANSIString> {
let text = &textmatch.text;
let mut outstr = String::with_capacity(text.len());
let mut ansi_strings = vec![];
let mut idx = 0;
for (match_idx, len) in &textmatch.char_matches {
outstr.push_str(&text[idx..*match_idx]);
ansi_strings.push(normal.paint(&text[idx..*match_idx]));
idx = match_idx + len;
outstr.push_str(&format!("{}", hlcol.paint(&text[*match_idx..idx])));
ansi_strings.push(highlighted.paint(&text[*match_idx..idx]));
}
if idx < text.len() {
outstr.push_str(&text[idx..text.len()]);
ansi_strings.push(normal.paint(&text[idx..text.len()]));
}
outstr
ansi_strings
}
fn paint_selection_list(lines: &Vec<String>, selected: usize) {
let dimmed = Colour::White.dimmed();
fn paint_selection_list(lines: &Vec<Match>, selected: usize) {
let terminal = terminal();
let size = terminal.terminal_size();
let width = size.0 as usize;
let cursor = cursor();
let (_x, y) = cursor.pos();
for (i, line) in lines.iter().enumerate() {
let _ = cursor.goto(0, y + (i as u16));
if selected == i {
println!("{}", line);
let (style, highlighted) = if selected == i {
(Colour::White.normal(), Colour::Cyan.normal())
} else {
println!("{}", dimmed.paint(line));
(Colour::White.dimmed(), Colour::Cyan.normal())
};
let mut ansi_strings = highlight(line, style, highlighted);
for _ in line.text.len()..width {
ansi_strings.push(style.paint(' '.to_string()));
}
println!("{}", ANSIStrings(&ansi_strings));
}
let _ = cursor.goto(0, y + (lines.len() as u16));
print!(
@ -161,7 +174,7 @@ fn paint_selection_list(lines: &Vec<String>, selected: usize) {
let _ = std::io::stdout().flush();
// Clear additional lines from previous selection
terminal().clear(ClearType::FromCursorDown).unwrap();
terminal.clear(ClearType::FromCursorDown).unwrap();
}
#[test]