1use editor::{display_map::ToDisplayPoint, movement, scroll::Autoscroll, Bias, Direction, Editor};
2use gpui::{actions, View};
3use ui::{ViewContext, WindowContext};
4use workspace::Workspace;
5
6use crate::{state::Mode, Vim};
7
8actions!(vim, [ChangeListOlder, ChangeListNewer]);
9
10pub(crate) fn register(workspace: &mut Workspace, _: &mut ViewContext<Workspace>) {
11 workspace.register_action(|_, _: &ChangeListOlder, cx| {
12 Vim::update(cx, |vim, cx| {
13 move_to_change(vim, Direction::Prev, cx);
14 })
15 });
16 workspace.register_action(|_, _: &ChangeListNewer, cx| {
17 Vim::update(cx, |vim, cx| {
18 move_to_change(vim, Direction::Next, cx);
19 })
20 });
21}
22
23fn move_to_change(vim: &mut Vim, direction: Direction, cx: &mut WindowContext) {
24 let count = vim.take_count(cx).unwrap_or(1);
25 let selections = vim.update_state(|state| {
26 if state.change_list.is_empty() {
27 return None;
28 }
29
30 let prev = state
31 .change_list_position
32 .unwrap_or(state.change_list.len());
33 let next = if direction == Direction::Prev {
34 prev.saturating_sub(count)
35 } else {
36 (prev + count).min(state.change_list.len() - 1)
37 };
38 state.change_list_position = Some(next);
39 state.change_list.get(next).cloned()
40 });
41
42 let Some(selections) = selections else {
43 return;
44 };
45 vim.update_active_editor(cx, |_, editor, cx| {
46 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
47 let map = s.display_map();
48 s.select_display_ranges(selections.into_iter().map(|a| {
49 let point = a.to_display_point(&map);
50 point..point
51 }))
52 })
53 });
54}
55
56pub(crate) fn push_to_change_list(vim: &mut Vim, editor: View<Editor>, cx: &mut WindowContext) {
57 let (map, selections) =
58 editor.update(cx, |editor, cx| editor.selections.all_adjusted_display(cx));
59
60 let pop_state =
61 vim.state()
62 .change_list
63 .last()
64 .map(|previous| {
65 previous.len() == selections.len()
66 && previous.iter().enumerate().all(|(ix, p)| {
67 p.to_display_point(&map).row() == selections[ix].head().row()
68 })
69 })
70 .unwrap_or(false);
71
72 let new_positions = selections
73 .into_iter()
74 .map(|s| {
75 let point = if vim.state().mode == Mode::Insert {
76 movement::saturating_left(&map, s.head())
77 } else {
78 s.head()
79 };
80 map.display_point_to_anchor(point, Bias::Left)
81 })
82 .collect();
83
84 vim.update_state(|state| {
85 state.change_list_position.take();
86 if pop_state {
87 state.change_list.pop();
88 }
89 state.change_list.push(new_positions);
90 })
91}
92
93#[cfg(test)]
94mod test {
95 use indoc::indoc;
96
97 use crate::{state::Mode, test::NeovimBackedTestContext};
98
99 #[gpui::test]
100 async fn test_change_list_insert(cx: &mut gpui::TestAppContext) {
101 let mut cx = NeovimBackedTestContext::new(cx).await;
102
103 cx.set_shared_state("ˇ").await;
104
105 cx.simulate_shared_keystrokes("i 1 1 escape shift-o 2 2 escape shift-g o 3 3 escape")
106 .await;
107
108 cx.shared_state().await.assert_eq(indoc! {
109 "22
110 11
111 3ˇ3"
112 });
113
114 cx.simulate_shared_keystrokes("g ;").await;
115 // NOTE: this matches nvim when I type it into it
116 // but in tests, nvim always reports the column as 0...
117 cx.assert_state(
118 indoc! {
119 "22
120 11
121 3ˇ3"
122 },
123 Mode::Normal,
124 );
125 cx.simulate_shared_keystrokes("g ;").await;
126 cx.assert_state(
127 indoc! {
128 "2ˇ2
129 11
130 33"
131 },
132 Mode::Normal,
133 );
134 cx.simulate_shared_keystrokes("g ;").await;
135 cx.assert_state(
136 indoc! {
137 "22
138 1ˇ1
139 33"
140 },
141 Mode::Normal,
142 );
143 cx.simulate_shared_keystrokes("g ,").await;
144 cx.assert_state(
145 indoc! {
146 "2ˇ2
147 11
148 33"
149 },
150 Mode::Normal,
151 );
152 cx.simulate_shared_keystrokes("shift-g i 4 4 escape").await;
153 cx.simulate_shared_keystrokes("g ;").await;
154 cx.assert_state(
155 indoc! {
156 "22
157 11
158 34ˇ43"
159 },
160 Mode::Normal,
161 );
162 cx.simulate_shared_keystrokes("g ;").await;
163 cx.assert_state(
164 indoc! {
165 "2ˇ2
166 11
167 3443"
168 },
169 Mode::Normal,
170 );
171 }
172
173 #[gpui::test]
174 async fn test_change_list_delete(cx: &mut gpui::TestAppContext) {
175 let mut cx = NeovimBackedTestContext::new(cx).await;
176 cx.set_shared_state(indoc! {
177 "one two
178 three fˇour"})
179 .await;
180 cx.simulate_shared_keystrokes("x k d i w ^ x").await;
181 cx.shared_state().await.assert_eq(indoc! {
182 "ˇne•
183 three fur"});
184 cx.simulate_shared_keystrokes("2 g ;").await;
185 cx.shared_state().await.assert_eq(indoc! {
186 "ne•
187 three fˇur"});
188 cx.simulate_shared_keystrokes("g ,").await;
189 cx.shared_state().await.assert_eq(indoc! {
190 "ˇne•
191 three fur"});
192 }
193
194 #[gpui::test]
195 async fn test_gi(cx: &mut gpui::TestAppContext) {
196 let mut cx = NeovimBackedTestContext::new(cx).await;
197 cx.set_shared_state(indoc! {
198 "one two
199 three fˇr"})
200 .await;
201 cx.simulate_shared_keystrokes("i o escape k g i").await;
202 cx.simulate_shared_keystrokes("u escape").await;
203 cx.shared_state().await.assert_eq(indoc! {
204 "one two
205 three foˇur"});
206 }
207
208 #[gpui::test]
209 async fn test_dot_mark(cx: &mut gpui::TestAppContext) {
210 let mut cx = NeovimBackedTestContext::new(cx).await;
211 cx.set_shared_state(indoc! {
212 "one two
213 three fˇr"})
214 .await;
215 cx.simulate_shared_keystrokes("i o escape k ` .").await;
216 cx.shared_state().await.assert_eq(indoc! {
217 "one two
218 three fˇor"});
219 }
220}