Define vim_mode setting in vim crate

crates/vim/src/vim.rs

@@ -22,11 +22,13 @@ use language::CursorShape;
 use motion::Motion;
 use normal::normal_replace;
 use serde::Deserialize;
-use settings::Settings;
+use settings::{Setting, SettingsStore};
 use state::{Mode, Operator, VimState};
 use visual::visual_replace;
 use workspace::{self, Workspace};
 
+struct VimModeSetting(bool);
+
 #[derive(Clone, Deserialize, PartialEq)]
 pub struct SwitchMode(pub Mode);
 
@@ -40,6 +42,8 @@ actions!(vim, [Tab, Enter]);
 impl_actions!(vim, [Number, SwitchMode, PushOperator]);
 
 pub fn init(cx: &mut AppContext) {
+    settings::register_setting::<VimModeSetting>(cx);
+
     editor_events::init(cx);
     normal::init(cx);
     visual::init(cx);
@@ -91,11 +95,11 @@ pub fn init(cx: &mut AppContext) {
         filter.filtered_namespaces.insert("vim");
     });
     cx.update_default_global(|vim: &mut Vim, cx: &mut AppContext| {
-        vim.set_enabled(cx.global::<Settings>().vim_mode, cx)
+        vim.set_enabled(settings::get_setting::<VimModeSetting>(None, cx).0, cx)
     });
-    cx.observe_global::<Settings, _>(|cx| {
+    cx.observe_global::<SettingsStore, _>(|cx| {
         cx.update_default_global(|vim: &mut Vim, cx: &mut AppContext| {
-            vim.set_enabled(cx.global::<Settings>().vim_mode, cx)
+            vim.set_enabled(settings::get_setting::<VimModeSetting>(None, cx).0, cx)
         });
     })
     .detach();
@@ -330,6 +334,26 @@ impl Vim {
     }
 }
 
+impl Setting for VimModeSetting {
+    const KEY: Option<&'static str> = Some("vim_mode");
+
+    type FileContent = Option<bool>;
+
+    fn load(
+        default_value: &Self::FileContent,
+        user_values: &[&Self::FileContent],
+        _: &AppContext,
+    ) -> Self {
+        Self(
+            user_values
+                .first()
+                .map(|e| **e)
+                .flatten()
+                .unwrap_or(default_value.unwrap()),
+        )
+    }
+}
+
 fn local_selections_changed(newest_empty: bool, cx: &mut WindowContext) {
     Vim::update(cx, |vim, cx| {
         if vim.enabled && vim.state.mode == Mode::Normal && !newest_empty {