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
|
use std::path::PathBuf;
use anyhow::Result;
use crossbeam::channel::Receiver;
use crosstermion::input::Event;
use dua::{
traverse::{EntryData, Traversal, Tree},
ByteFormat, WalkOptions, WalkResult,
};
use tui::prelude::Backend;
use tui_react::Terminal;
use crate::interactive::widgets::MainWindow;
use super::{
app_state::{AppState, ProcessingResult},
refresh_key, sorted_entries, ByteVisualization, DisplayOptions,
};
/// State and methods representing the interactive disk usage analyser for the terminal
pub struct TerminalApp {
pub traversal: Traversal,
pub display: DisplayOptions,
pub state: AppState,
pub window: MainWindow,
}
type KeyboardInputAndApp = (crossbeam::channel::Receiver<Event>, TerminalApp);
impl TerminalApp {
pub fn refresh_view<B>(&mut self, terminal: &mut Terminal<B>)
where
B: Backend,
{
// Use an event that does nothing to trigger a refresh
self.state
.process_events(
&mut self.window,
&mut self.traversal,
&mut self.display,
terminal,
std::iter::once(Event::Key(refresh_key())),
)
.ok();
}
pub fn process_events<B>(
&mut self,
terminal: &mut Terminal<B>,
events: impl Iterator<Item = Event>,
) -> Result<WalkResult>
where
B: Backend,
{
match self.state.process_events(
&mut self.window,
&mut self.traversal,
&mut self.display,
terminal,
events,
)? {
ProcessingResult::Finished(res) | ProcessingResult::ExitRequested(res) => Ok(res),
}
}
pub fn initialize<B>(terminal: &mut Terminal<B>, byte_format: ByteFormat) -> Result<TerminalApp>
where
B: Backend,
{
terminal.hide_cursor()?;
terminal.clear()?;
let mut display = DisplayOptions::new(byte_format);
let mut window = MainWindow::default();
// #[inline]
// fn fetch_buffered_key_events(keys_rx: &Receiver<Event>) -> Vec<Event> {
// let mut keys = Vec::new();
// while let Ok(key) = keys_rx.try_recv() {
// keys.push(key);
// }
// keys
// }
let mut state = AppState {
is_scanning: false,
..Default::default()
};
// let mut received_events = false;
// let traversal =
// Traversal::from_walk(options, input_paths, &keys_rx, |traversal, event| {
// if !received_events {
// state.navigation_mut().view_root = traversal.root_index;
// }
// state.entries = sorted_entries(
// &traversal.tree,
// state.navigation().view_root,
// state.sorting,
// state.glob_root(),
// );
// if !received_events {
// state.navigation_mut().selected = state.entries.first().map(|b| b.index);
// }
// state.reset_message(); // force "scanning" to appear
// let mut events = fetch_buffered_key_events(&keys_rx);
// if let Some(event) = event {
// // This update is triggered by a user event, insert it
// // before any events fetched later.
// events.insert(0, event);
// }
// received_events |= !events.is_empty();
// let should_exit = match state.process_events(
// &mut window,
// traversal,
// &mut display,
// terminal,
// events.into_iter(),
// )? {
// ProcessingResult::ExitRequested(_) => true,
// ProcessingResult::Finished(_) => false,
// };
// Ok(should_exit)
// })?;
// let traversal = match traversal {
// Some(t) => t,
// None => return Ok(None),
// };
// state.is_scanning = false;
// if !received_events {
// }
let traversal = {
let mut tree = Tree::new();
let root_index = tree.add_node(EntryData::default());
Traversal {
tree,
root_index,
entries_traversed: 0,
start: std::time::Instant::now(),
elapsed: None,
io_errors: 0,
total_bytes: None,
}
};
state.navigation_mut().view_root = traversal.root_index;
state.entries = sorted_entries(
&traversal.tree,
state.navigation().view_root,
state.sorting,
state.glob_root(),
);
state.navigation_mut().selected = state.entries.first().map(|b| b.index);
let mut app = TerminalApp {
state,
display,
traversal,
window,
};
app.refresh_view(terminal);
Ok(app)
}
}
|
