1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
use crossterm::event::{KeyCode, KeyEvent, KeyEventKind};
use ratatui::prelude::*;
use ratatui::widgets::*;
use crate::app_action::AppAction;
use crate::component::Component;
use crate::keys::key_commands::*;
#[derive(Default)]
pub struct GlobalKeys {
pub key_commands: Vec<KeyCommand>,
pub should_show: bool,
pub scroll: u16,
}
impl Component for GlobalKeys {
fn init(&mut self) -> eyre::Result<()> {
self.key_commands.push(KeyCommand {
key_code: "?".to_string(),
description: "Show help menu".to_string(),
action: None,
});
Ok(())
}
fn handle_key_event(
&mut self,
key: KeyEvent,
) -> eyre::Result<Option<AppAction>> {
if key.kind == KeyEventKind::Press {
for key_command in self.key_commands.iter_mut() {
if key_command.key_code == serialize_key_event(key) {
if serialize_key_event(key) == "?" {
self.should_show = !self.should_show;
}
return Ok(key_command.action);
}
}
}
Ok(None)
}
fn render(&mut self, frame: &mut Frame, rect: Rect) -> eyre::Result<()> {
let block = Block::default()
.title("Keyboard shortcuts")
.borders(Borders::ALL);
let mut lines: Vec<Line> = vec![];
for key_command in self.key_commands.iter_mut() {
let command = Span::from(key_command.key_code.clone());
let description =
Span::from(key_command.description.clone()).italic();
let spacer = Span::from(" ");
let line = Line::from(vec![command, spacer, description]);
lines.push(line);
}
let commands = Paragraph::new(lines)
.block(block)
.wrap(Wrap { trim: true })
.scroll((self.scroll, 0));
if self.should_show {
frame.render_widget(commands, rect);
}
Ok(())
}
}
|
