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Move to rawkey

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This commit is contained in:
Jonathan Turner 2019-07-25 13:25:17 +12:00
parent a6b79748d9
commit 501482cc31
1 changed files with 17 additions and 51 deletions
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68
src/plugins/textview.rs
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@ -1,11 +1,12 @@
#![feature(option_flattening)]
use crossterm::{cursor, terminal, InputEvent, KeyEvent, RawScreen};
use crossterm::{cursor, terminal, RawScreen};
use indexmap::IndexMap;
use nu::{
serve_plugin, CallInfo, CommandConfig, Plugin, Primitive, ShellError, SourceMap, SpanSource,
Spanned, Value,
};
use rawkey::RawKey;
use std::io::Write;
use std::path::Path;
@ -80,63 +81,27 @@ fn paint_textview(lines: &Vec<String>, starting_row: usize) -> (u16, u16) {
fn scroll_view_lines(lines: Vec<String>) {
let mut starting_row = 0;
let rawkey = RawKey::new();
if let Ok(_raw) = RawScreen::into_raw_mode() {
let terminal = terminal();
let input = crossterm::input();
let cursor = cursor();
let _ = cursor.hide();
let mut async_stdin = input.read_async();
let _ = terminal.clear(crossterm::ClearType::All);
let mut size = paint_textview(&lines, starting_row);
loop {
if let Some(key_event) = async_stdin.next() {
match key_event {
InputEvent::Keyboard(k) => match k {
KeyEvent::Esc => {
break;
}
KeyEvent::Up => {
if starting_row > 0 {
starting_row -= 1;
size = paint_textview(&lines, starting_row);
}
}
KeyEvent::Down => {
if starting_row
< (std::cmp::max(size.1 as usize, lines.len()) - size.1 as usize)
{
starting_row += 1;
size = paint_textview(&lines, starting_row);
}
}
KeyEvent::PageUp => {
starting_row -= std::cmp::min(starting_row, size.1 as usize);
size = paint_textview(&lines, starting_row);
}
KeyEvent::Char(c) if c == ' ' => {
if starting_row
< (std::cmp::max(size.1 as usize, lines.len()) - size.1 as usize)
{
starting_row += size.1 as usize;
size = paint_textview(&lines, starting_row);
}
}
KeyEvent::PageDown => {
if starting_row
< (std::cmp::max(size.1 as usize, lines.len()) - size.1 as usize)
{
starting_row += size.1 as usize;
size = paint_textview(&lines, starting_row);
}
}
_ => {}
},
_ => {}
if rawkey.is_pressed(rawkey::KeyCode::Escape) {
break;
}
if rawkey.is_pressed(rawkey::KeyCode::UpArrow) {
if starting_row > 0 {
starting_row -= 1;
size = paint_textview(&lines, starting_row);
}
}
if rawkey.is_pressed(rawkey::KeyCode::DownArrow) {
if starting_row < (std::cmp::max(size.1 as usize, lines.len()) - size.1 as usize) {
starting_row += 1;
size = paint_textview(&lines, starting_row);
}
}
@ -145,6 +110,7 @@ fn scroll_view_lines(lines: Vec<String>) {
let _ = cursor.show();
}
thread::sleep(Duration::from_millis(250));
}
fn scroll_view(s: &str) {