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
|
use std::io::{stdin, stdout, Stdout, Write};
use std::sync::{Arc, Mutex};
use termion::event::{Event, Key};
use termion::input::TermRead;
use termion::screen::AlternateScreen;
use crate::term;
use crate::term::ScreenExt;
use crate::coordinates::{Coordinates, Position, Size};
use crate::widget::Widget;
pub struct Window<T>
where
T: Widget,
{
pub selection: usize,
pub widget: T,
pub status: Arc<Mutex<Option<String>>>,
pub screen: AlternateScreen<Box<Stdout>>,
pub coordinates: Coordinates,
}
impl<T> Window<T>
where
T: Widget,
{
pub fn new(widget: T) -> Window<T> {
let mut screen = AlternateScreen::from(Box::new(stdout()));
screen.cursor_hide();
let (xsize, ysize) = termion::terminal_size().unwrap();
let mut win = Window::<T> {
selection: 0,
widget: widget,
status: STATUS_BAR_CONTENT.clone(),
screen: screen,
coordinates: Coordinates {
size: Size((xsize, ysize)),
position: Position((1, 1)),
},
};
win.widget.set_coordinates(&Coordinates {
size: Size((xsize, ysize - 2)),
position: Position((1, 2)),
});
win.widget.refresh();
win
}
pub fn draw(&mut self) {
let output = self.widget.get_drawlist() + &self.widget.get_header_drawlist();
self.screen.write(output.as_ref()).unwrap();
self.screen.flush().unwrap();
Self::draw_status();
}
pub fn show_status(status: &str) {
show_status(status);
}
pub fn draw_status() {
draw_status();
}
pub fn clear_status() {
Self::show_status("");
}
pub fn handle_input(&mut self) {
for event in stdin().events() {
Self::clear_status();
let event = event.unwrap();
self.widget.on_event(event);
self.draw();
}
}
}
impl<T> Drop for Window<T>
where
T: Widget,
{
fn drop(&mut self) {
// When done, restore the defaults to avoid messing with the terminal.
self.screen
.write(
format!(
"{}{}{}{}{}",
termion::screen::ToMainScreen,
termion::clear::All,
termion::style::Reset,
termion::cursor::Show,
termion::cursor::Goto(1, 1)
)
.as_ref(),
)
.unwrap();
}
}
lazy_static! {
static ref STATUS_BAR_CONTENT: Arc<Mutex<Option<String>>> = Arc::new(Mutex::new(None));
}
pub fn draw_status() {
let xsize = term::xsize() as u16;
let status = STATUS_BAR_CONTENT.try_lock().unwrap().clone();
status.or(Some("".to_string())).and_then(|status| {
write!(
stdout(),
"{}{}{:xsize$}{}{}",
term::move_bottom(),
term::status_bg(),
" ",
term::move_bottom(),
status,
xsize = xsize as usize
)
.ok()
});
stdout().flush().unwrap();
}
pub fn show_status(status: &str) {
{
let mut status_content = STATUS_BAR_CONTENT.try_lock().unwrap();
*status_content = Some(status.to_string());
}
draw_status();
}
pub fn minibuffer(query: &str) -> Option<String> {
show_status(&(query.to_string() + ": "));
let mut buffer = "".to_string();
for key in stdin().events() {
match key {
Ok(Event::Key(key)) => match key {
Key::Esc => return None,
Key::Char('\n') => {
if buffer == "" {
return None;
} else {
return Some(buffer);
}
}
Key::Backspace => {
buffer.pop();
}
Key::Char(key) => {
buffer = buffer + &format!("{}", key);
}
_ => {}
},
_ => {}
}
show_status(&(query.to_string() + ": " + &buffer));
}
None
}
|