1use super::Axis;
2use crate::{
3 Autoscroll, Editor, EditorMode, NextScreen, NextScrollCursorCenterTopBottom,
4 SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT, ScrollCursorBottom, ScrollCursorCenter,
5 ScrollCursorCenterTopBottom, ScrollCursorTop, display_map::DisplayRow,
6};
7use gpui::{Context, Point, Window};
8
9impl Editor {
10 pub fn next_screen(&mut self, _: &NextScreen, window: &mut Window, cx: &mut Context<Editor>) {
11 if self.take_rename(true, window, cx).is_some() {
12 return;
13 }
14
15 if self.mouse_context_menu.is_some() {
16 return;
17 }
18
19 if matches!(self.mode, EditorMode::SingleLine) {
20 cx.propagate();
21 return;
22 }
23 self.request_autoscroll(Autoscroll::Next, cx);
24 }
25
26 pub fn scroll(
27 &mut self,
28 scroll_position: Point<f32>,
29 axis: Option<Axis>,
30 window: &mut Window,
31 cx: &mut Context<Self>,
32 ) {
33 self.scroll_manager.update_ongoing_scroll(axis);
34 self.set_scroll_position(scroll_position, window, cx);
35 }
36
37 pub fn scroll_cursor_center_top_bottom(
38 &mut self,
39 _: &ScrollCursorCenterTopBottom,
40 window: &mut Window,
41 cx: &mut Context<Self>,
42 ) {
43 match self.next_scroll_position {
44 NextScrollCursorCenterTopBottom::Center => {
45 self.scroll_cursor_center(&Default::default(), window, cx);
46 }
47 NextScrollCursorCenterTopBottom::Top => {
48 self.scroll_cursor_top(&Default::default(), window, cx);
49 }
50 NextScrollCursorCenterTopBottom::Bottom => {
51 self.scroll_cursor_bottom(&Default::default(), window, cx);
52 }
53 }
54
55 self.next_scroll_position = self.next_scroll_position.next();
56 self._scroll_cursor_center_top_bottom_task = cx.spawn(async move |editor, cx| {
57 cx.background_executor()
58 .timer(SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT)
59 .await;
60 editor
61 .update(cx, |editor, _| {
62 editor.next_scroll_position = NextScrollCursorCenterTopBottom::default();
63 })
64 .ok();
65 });
66 }
67
68 pub fn scroll_cursor_top(
69 &mut self,
70 _: &ScrollCursorTop,
71 window: &mut Window,
72 cx: &mut Context<Editor>,
73 ) {
74 let scroll_margin_rows = self.vertical_scroll_margin() as u32;
75 let new_screen_top = self.selections.newest_display(cx).head().row().0;
76 let new_screen_top = new_screen_top.saturating_sub(scroll_margin_rows);
77 self.set_scroll_top_row(DisplayRow(new_screen_top), window, cx);
78 }
79
80 pub fn scroll_cursor_center(
81 &mut self,
82 _: &ScrollCursorCenter,
83 window: &mut Window,
84 cx: &mut Context<Editor>,
85 ) {
86 let Some(visible_rows) = self.visible_line_count().map(|count| count as u32) else {
87 return;
88 };
89 let new_screen_top = self.selections.newest_display(cx).head().row().0;
90 let new_screen_top = new_screen_top.saturating_sub(visible_rows / 2);
91 self.set_scroll_top_row(DisplayRow(new_screen_top), window, cx);
92 }
93
94 pub fn scroll_cursor_bottom(
95 &mut self,
96 _: &ScrollCursorBottom,
97 window: &mut Window,
98 cx: &mut Context<Editor>,
99 ) {
100 let scroll_margin_rows = self.vertical_scroll_margin() as u32;
101 let Some(visible_rows) = self.visible_line_count().map(|count| count as u32) else {
102 return;
103 };
104 let new_screen_top = self.selections.newest_display(cx).head().row().0;
105 let new_screen_top =
106 new_screen_top.saturating_sub(visible_rows.saturating_sub(scroll_margin_rows));
107 self.set_scroll_top_row(DisplayRow(new_screen_top), window, cx);
108 }
109}