basalt_widgets/markdown/
state.rs

1use ratatui::widgets::ScrollbarState;
2
3#[derive(Clone, Debug, PartialEq, Default)]
4pub struct Scrollbar {
5    pub state: ScrollbarState,
6    pub position: usize,
7}
8
9#[derive(Clone, Debug, PartialEq, Default)]
10pub struct MarkdownViewState {
11    pub(crate) text: String,
12    pub(crate) scrollbar: Scrollbar,
13}
14
15impl MarkdownViewState {
16    pub fn new(text: &str) -> Self {
17        Self {
18            text: text.into(),
19            ..Default::default()
20        }
21    }
22
23    pub fn get_lines(&self) -> Vec<&str> {
24        self.text.lines().collect()
25    }
26
27    pub fn scroll_up(self, amount: usize) -> Self {
28        let new_position = self.scrollbar.position.saturating_sub(amount);
29        let new_state = self.scrollbar.state.position(new_position);
30
31        Self {
32            scrollbar: Scrollbar {
33                state: new_state,
34                position: new_position,
35            },
36            ..self
37        }
38    }
39
40    pub fn scroll_down(self, amount: usize) -> Self {
41        let new_position = self.scrollbar.position.saturating_add(amount);
42        let new_state = self.scrollbar.state.position(new_position);
43
44        Self {
45            scrollbar: Scrollbar {
46                state: new_state,
47                position: new_position,
48            },
49            ..self
50        }
51    }
52
53    pub fn set_text(self, text: String) -> Self {
54        Self { text, ..self }
55    }
56
57    pub fn reset_scrollbar(self) -> Self {
58        Self {
59            scrollbar: Scrollbar::default(),
60            ..self
61        }
62    }
63}
basalt_widgets/markdown/state.rs

basalt_widgets/markdown/
state.rs
