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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
// bibiman - a TUI for managing BibLaTeX databases
// Copyright (C) 2024 lukeflo
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
/////
pub mod commands;
pub mod popup;
pub mod ui;
use crate::{App, config::BibiConfig};
use crossterm::{
cursor,
event::{
DisableMouseCapture, EnableMouseCapture, Event as CrosstermEvent, KeyEvent, MouseEvent,
},
terminal::{EnterAlternateScreen, LeaveAlternateScreen},
};
// use ratatui::backend::{Backend, CrosstermBackend};
use color_eyre::eyre::{OptionExt, Result};
use futures::{FutureExt, StreamExt};
use ratatui::backend::CrosstermBackend;
use std::io::{Stdout, stdout};
use std::panic;
use std::{
ops::{Deref, DerefMut},
time::Duration,
};
use tokio::sync::mpsc;
use tokio_util::sync::CancellationToken;
// Terminal events.
#[derive(Clone, Copy, Debug)]
pub enum Event {
/// Terminal tick.
Tick,
/// Key press.
Key(KeyEvent),
/// Mouse click/scroll.
Mouse(MouseEvent),
/// Terminal resize.
Resize(u16, u16),
}
#[derive(Debug)]
pub struct Tui {
/// Interface to the Terminal.
pub terminal: ratatui::Terminal<CrosstermBackend<Stdout>>,
/// Event sender channel.
evt_sender: mpsc::UnboundedSender<Event>,
/// Event receiver channel.
evt_receiver: mpsc::UnboundedReceiver<Event>,
/// Event handler thread.
handler: tokio::task::JoinHandle<()>,
cancellation_token: CancellationToken,
}
impl Tui {
// Constructs a new instance of [`Tui`].
pub fn new() -> Result<Self> {
let terminal = ratatui::Terminal::new(CrosstermBackend::new(stdout()))?;
let (evt_sender, evt_receiver) = mpsc::unbounded_channel();
let handler = tokio::spawn(async {});
let cancellation_token = CancellationToken::new();
Ok(Self {
terminal,
evt_sender,
evt_receiver,
handler,
cancellation_token,
})
}
pub fn start(&mut self) {
let tick_rate = Duration::from_millis(1000);
self.cancel();
self.cancellation_token = CancellationToken::new();
let event_loop = Self::event_loop(
self.evt_sender.clone(),
self.cancellation_token.clone(),
tick_rate,
);
// let _cancellation_token = self.cancellation_token.clone();
// let _sender = self.sender.clone();
self.handler = tokio::spawn(async {
event_loop.await;
});
}
async fn event_loop(
sender: mpsc::UnboundedSender<Event>,
cancellation_token: CancellationToken,
tick_rate: Duration,
) {
let mut reader = crossterm::event::EventStream::new();
let mut tick = tokio::time::interval(tick_rate);
loop {
let tick_delay = tick.tick();
let crossterm_event = reader.next().fuse();
tokio::select! {
// _ = sender.closed() => {
// break;
// }
_ = cancellation_token.cancelled() => {
break;
}
Some(Ok(evt)) = crossterm_event => {
match evt {
CrosstermEvent::Key(key) => {
if key.kind == crossterm::event::KeyEventKind::Press {
sender.send(Event::Key(key)).unwrap();
}
},
CrosstermEvent::Mouse(mouse) => {
sender.send(Event::Mouse(mouse)).unwrap();
},
CrosstermEvent::Resize(x, y) => {
sender.send(Event::Resize(x, y)).unwrap();
},
CrosstermEvent::FocusLost => {
},
CrosstermEvent::FocusGained => {
},
CrosstermEvent::Paste(_) => {
},
}
}
_ = tick_delay => {
sender.send(Event::Tick).unwrap();
}
};
}
cancellation_token.cancel();
}
pub fn enter(&mut self) -> Result<()> {
crossterm::terminal::enable_raw_mode()?;
crossterm::execute!(stdout(), EnterAlternateScreen, cursor::Hide)?;
// if self.mouse {
crossterm::execute!(stdout(), EnableMouseCapture)?;
// }
// if self.paste {
// crossterm::execute!(stdout(), EnableBracketedPaste)?;
// }
// Self::init_error_hooks()?;
self.start();
Ok(())
}
pub fn cancel(&self) {
self.cancellation_token.cancel();
}
pub fn suspend(&mut self) -> Result<()> {
self.exit()?;
#[cfg(not(windows))]
signal_hook::low_level::raise(signal_hook::consts::signal::SIGTSTP)?;
Ok(())
}
pub fn resume(&mut self) -> Result<()> {
self.enter()?;
Ok(())
}
pub fn exit(&mut self) -> Result<()> {
self.cancellation_token.cancel();
if crossterm::terminal::is_raw_mode_enabled()? {
self.terminal.flush()?;
// if self.paste {
// crossterm::execute!(stdout(), DisableBracketedPaste)?;
// }
// if self.mouse {
crossterm::execute!(stdout(), DisableMouseCapture)?;
// }
crossterm::execute!(stdout(), LeaveAlternateScreen, cursor::Show)?;
crossterm::terminal::disable_raw_mode()?;
}
Ok(())
}
// [`Draw`] the terminal interface by [`rendering`] the widgets.
//
// [`Draw`]: ratatui::Terminal::draw
// [`rendering`]: crate::ui::render
pub fn draw(&mut self, app: &mut App, cfg: &BibiConfig) -> Result<()> {
// self.terminal.draw(|frame| ui::render(app, frame))?;
self.terminal
// .draw(|frame| frame.render_widget(app, frame.area()))?;
.draw(|frame| ui::render_ui(app, cfg, frame))?;
Ok(())
}
pub async fn next(&mut self) -> Result<Event> {
self.evt_receiver
.recv()
.await
.ok_or_eyre("This is an IO error")
}
}
impl Deref for Tui {
type Target = ratatui::Terminal<CrosstermBackend<Stdout>>;
fn deref(&self) -> &Self::Target {
&self.terminal
}
}
impl DerefMut for Tui {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.terminal
}
}
impl Drop for Tui {
fn drop(&mut self) {
self.exit().unwrap();
}
}
|
