1use crate::{insert::NormalBefore, Vim, VimModeSetting};
2use editor::{Editor, EditorEvent};
3use gpui::{
4 Action, AppContext, BorrowAppContext, Entity, EntityId, View, ViewContext, WindowContext,
5};
6use settings::{Settings, SettingsStore};
7
8pub fn init(cx: &mut AppContext) {
9 cx.observe_new_views(|_, cx: &mut ViewContext<Editor>| {
10 let editor = cx.view().clone();
11 cx.subscribe(&editor, |_, editor, event: &EditorEvent, cx| match event {
12 EditorEvent::Focused => cx.window_context().defer(|cx| focused(editor, cx)),
13 EditorEvent::Blurred => cx.window_context().defer(|cx| blurred(editor, cx)),
14 _ => {}
15 })
16 .detach();
17
18 let mut enabled = VimModeSetting::get_global(cx).0;
19 cx.observe_global::<SettingsStore>(move |editor, cx| {
20 if VimModeSetting::get_global(cx).0 != enabled {
21 enabled = VimModeSetting::get_global(cx).0;
22 if !enabled {
23 Vim::unhook_vim_settings(editor, cx);
24 }
25 }
26 })
27 .detach();
28
29 let id = cx.view().entity_id();
30 cx.on_release(move |_, _, cx| released(id, cx)).detach();
31 })
32 .detach();
33}
34fn focused(editor: View<Editor>, cx: &mut WindowContext) {
35 Vim::update(cx, |vim, cx| {
36 if !vim.enabled {
37 return;
38 }
39 vim.activate_editor(editor.clone(), cx);
40 });
41}
42
43fn blurred(editor: View<Editor>, cx: &mut WindowContext) {
44 Vim::update(cx, |vim, cx| {
45 if let Some(previous_editor) = vim.active_editor.clone() {
46 vim.stop_recording_immediately(NormalBefore.boxed_clone());
47 if previous_editor
48 .upgrade()
49 .is_some_and(|previous| previous == editor.clone())
50 {
51 vim.clear_operator(cx);
52 }
53 }
54 });
55}
56
57fn released(entity_id: EntityId, cx: &mut AppContext) {
58 cx.update_global(|vim: &mut Vim, _| {
59 if vim
60 .active_editor
61 .as_ref()
62 .is_some_and(|previous| previous.entity_id() == entity_id)
63 {
64 vim.active_editor = None;
65 vim.editor_subscription = None;
66 }
67 vim.editor_states.remove(&entity_id)
68 });
69}
70
71#[cfg(test)]
72mod test {
73 use crate::{test::VimTestContext, Vim};
74 use editor::Editor;
75 use gpui::{Context, Entity, VisualTestContext};
76 use language::Buffer;
77
78 // regression test for blur called with a different active editor
79 #[gpui::test]
80 async fn test_blur_focus(cx: &mut gpui::TestAppContext) {
81 let mut cx = VimTestContext::new(cx, true).await;
82
83 let buffer = cx.new_model(|cx| Buffer::local("a = 1\nb = 2\n", cx));
84 let window2 = cx.add_window(|cx| Editor::for_buffer(buffer, None, cx));
85 let editor2 = cx
86 .update(|cx| {
87 window2.update(cx, |_, cx| {
88 cx.activate_window();
89 cx.focus_self();
90 cx.view().clone()
91 })
92 })
93 .unwrap();
94 cx.run_until_parked();
95
96 cx.update(|cx| {
97 let vim = Vim::read(cx);
98 assert_eq!(
99 vim.active_editor.as_ref().unwrap().entity_id(),
100 editor2.entity_id(),
101 )
102 });
103
104 // no panic when blurring an editor in a different window.
105 cx.update_editor(|editor1, cx| {
106 editor1.handle_blur(cx);
107 });
108 }
109
110 // regression test for focus_in/focus_out being called on window activation
111 #[gpui::test]
112 async fn test_focus_across_windows(cx: &mut gpui::TestAppContext) {
113 let mut cx = VimTestContext::new(cx, true).await;
114
115 let mut cx1 = VisualTestContext::from_window(cx.window, &cx);
116 let editor1 = cx.editor.clone();
117
118 let buffer = cx.new_model(|cx| Buffer::local("a = 1\nb = 2\n", cx));
119 let (editor2, cx2) = cx.add_window_view(|cx| Editor::for_buffer(buffer, None, cx));
120
121 editor2.update(cx2, |_, cx| {
122 cx.focus_self();
123 cx.activate_window();
124 });
125 cx.run_until_parked();
126
127 cx1.update(|cx| {
128 assert_eq!(
129 Vim::read(cx).active_editor.as_ref().unwrap().entity_id(),
130 editor2.entity_id(),
131 )
132 });
133
134 cx1.update(|cx| {
135 cx.activate_window();
136 });
137 cx.run_until_parked();
138
139 cx.update(|cx| {
140 assert_eq!(
141 Vim::read(cx).active_editor.as_ref().unwrap().entity_id(),
142 editor1.entity_id(),
143 )
144 });
145 }
146}