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[feature] Add scroll wheel support to interactive history search (#435)

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This commit is contained in:
Frank Hamand 2022-06-04 10:16:12 +01:00 committed by GitHub
parent dcdde22511
commit 3f5350dee6
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 36 additions and 25 deletions
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20
src/command/client/event.rs
View file

@ -1,7 +1,7 @@
use std::{thread, time::Duration};
use crossbeam_channel::unbounded;
use termion::{event::Key, input::TermRead};
use crossbeam_channel::{bounded, TrySendError};
use termion::{event::Event as TermEvent, event::Key, input::TermRead};
pub enum Event<I> {
Input(I),
@ -11,7 +11,7 @@ pub enum Event<I> {
/// A small event handler that wrap termion input and tick events. Each event
/// type is handled in its own thread and returned to a common `Receiver`
pub struct Events {
rx: crossbeam_channel::Receiver<Event<Key>>,
rx: crossbeam_channel::Receiver<Event<TermEvent>>,
}
#[derive(Debug, Clone, Copy)]
@ -35,18 +35,24 @@ impl Events {
}
pub fn with_config(config: Config) -> Events {
let (tx, rx) = unbounded();
// Keep channel small so scroll events don't stack for ages.
let (tx, rx) = bounded(1);
{
let tx = tx.clone();
thread::spawn(move || {
let tty = termion::get_tty().expect("Could not find tty");
for key in tty.keys().flatten() {
if let Err(err) = tx.send(Event::Input(key)) {
for event in tty.events().flatten() {
if let Err(err) = tx.try_send(Event::Input(event)) {
if let TrySendError::Full(_) = err {
// Silently ignore send fails when buffer is full.
// This will most likely be scroll wheel spam and we can drop some events.
} else {
eprintln!("{}", err);
return;
}
}
}
})
};
@ -60,7 +66,7 @@ impl Events {
Events { rx }
}
pub fn next(&self) -> Result<Event<Key>, crossbeam_channel::RecvError> {
pub fn next(&self) -> Result<Event<TermEvent>, crossbeam_channel::RecvError> {
self.rx.recv()
}
}

37
src/command/client/search.rs
View file

@ -3,7 +3,10 @@ use std::{env, io::stdout, ops::Sub, time::Duration};
use chrono::Utc;
use clap::Parser;
use eyre::Result;
use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen};
use termion::{
event::Event as TermEvent, event::Key, event::MouseButton, event::MouseEvent,
input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen,
};
use tui::{
backend::{Backend, TermionBackend},
layout::{Alignment, Constraint, Corner, Direction, Layout},
@ -305,14 +308,14 @@ fn remove_char_from_input(app: &mut State, i: usize) -> char {
#[allow(clippy::too_many_lines)]
async fn key_handler(
input: Key,
input: TermEvent,
search_mode: SearchMode,
db: &mut impl Database,
app: &mut State,
) -> Option<String> {
match input {
Key::Esc | Key::Ctrl('c' | 'd' | 'g') => return Some(String::from("")),
Key::Char('\n') => {
TermEvent::Key(Key::Esc | Key::Ctrl('c' | 'd' | 'g')) => return Some(String::from("")),
TermEvent::Key(Key::Char('\n')) => {
let i = app.results_state.selected().unwrap_or(0);
return Some(
@ -321,7 +324,7 @@ async fn key_handler(
.map_or(app.input.clone(), |h| h.command.clone()),
);
}
Key::Alt(c) if ('1'..='9').contains(&c) => {
TermEvent::Key(Key::Alt(c)) if ('1'..='9').contains(&c) => {
let c = c.to_digit(10)? as usize;
let i = app.results_state.selected()? + c;
@ -331,28 +334,28 @@ async fn key_handler(
.map_or(app.input.clone(), |h| h.command.clone()),
);
}
Key::Left | Key::Ctrl('h') => {
TermEvent::Key(Key::Left | Key::Ctrl('h')) => {
if app.cursor_index != 0 {
app.cursor_index -= 1;
}
}
Key::Right | Key::Ctrl('l') => {
TermEvent::Key(Key::Right | Key::Ctrl('l')) => {
if app.cursor_index < app.input.width() {
app.cursor_index += 1;
}
}
Key::Ctrl('a') => {
TermEvent::Key(Key::Ctrl('a')) => {
app.cursor_index = 0;
}
Key::Ctrl('e') => {
TermEvent::Key(Key::Ctrl('e')) => {
app.cursor_index = app.input.chars().count();
}
Key::Char(c) => {
TermEvent::Key(Key::Char(c)) => {
insert_char_into_input(app, app.cursor_index, c);
app.cursor_index += 1;
query_results(app, search_mode, db).await.unwrap();
}
Key::Backspace => {
TermEvent::Key(Key::Backspace) => {
if app.cursor_index == 0 {
return None;
}
@ -360,7 +363,7 @@ async fn key_handler(
app.cursor_index -= 1;
query_results(app, search_mode, db).await.unwrap();
}
Key::Ctrl('w') => {
TermEvent::Key(Key::Ctrl('w')) => {
let mut stop_on_next_whitespace = false;
loop {
if app.cursor_index == 0 {
@ -378,12 +381,12 @@ async fn key_handler(
}
query_results(app, search_mode, db).await.unwrap();
}
Key::Ctrl('u') => {
TermEvent::Key(Key::Ctrl('u')) => {
app.input = String::from("");
app.cursor_index = 0;
query_results(app, search_mode, db).await.unwrap();
}
Key::Ctrl('r') => {
TermEvent::Key(Key::Ctrl('r')) => {
app.filter_mode = match app.filter_mode {
FilterMode::Global => FilterMode::Host,
FilterMode::Host => FilterMode::Session,
@ -393,7 +396,8 @@ async fn key_handler(
query_results(app, search_mode, db).await.unwrap();
}
Key::Down | Key::Ctrl('n' | 'j') => {
TermEvent::Key(Key::Down | Key::Ctrl('n' | 'j'))
| TermEvent::Mouse(MouseEvent::Press(MouseButton::WheelDown, _, _)) => {
let i = match app.results_state.selected() {
Some(i) => {
if i == 0 {
@ -406,7 +410,8 @@ async fn key_handler(
};
app.results_state.select(Some(i));
}
Key::Up | Key::Ctrl('p' | 'k') => {
TermEvent::Key(Key::Up | Key::Ctrl('p' | 'k'))
| TermEvent::Mouse(MouseEvent::Press(MouseButton::WheelUp, _, _)) => {
let i = match app.results_state.selected() {
Some(i) => {
if i >= app.results.len() - 1 {