Add a way to configure default search options (#17179)

Closes https://github.com/zed-industries/zed/issues/4646

```json
// Search options to enable by default when opening new project and buffer searches.
"search": {
  "whole_word": false,
  "case_sensitive": false,
  "include_ignored": false,
  "regex": false
}
```

Release Notes:

- Added `search` settings section to configure default options enabled
in buffer and project searches
([#4646](https://github.com/zed-industries/zed/issues/4646))

---------

Co-authored-by: Kirill Bulatov <mail4score@gmail.com>

crates/search/src/buffer_search.rs

@@ -9,7 +9,7 @@ use any_vec::AnyVec;
 use collections::HashMap;
 use editor::{
     actions::{Tab, TabPrev},
-    DisplayPoint, Editor, EditorElement, EditorSettings, EditorStyle,
+    DisplayPoint, Editor, EditorElement, EditorSettings, EditorStyle, SearchSettings,
 };
 use futures::channel::oneshot;
 use gpui::{
@@ -22,7 +22,7 @@ use project::{
     search_history::{SearchHistory, SearchHistoryCursor},
 };
 use serde::Deserialize;
-use settings::Settings;
+use settings::{Settings, SettingsStore};
 use std::sync::Arc;
 use theme::ThemeSettings;
 
@@ -96,6 +96,7 @@ pub struct BufferSearchBar {
     scroll_handle: ScrollHandle,
     editor_scroll_handle: ScrollHandle,
     editor_needed_width: Pixels,
+    _subscriptions: Vec<Subscription>,
 }
 
 impl BufferSearchBar {
@@ -505,6 +506,12 @@ impl BufferSearchBar {
         cx.subscribe(&replacement_editor, Self::on_replacement_editor_event)
             .detach();
 
+        let search_options = SearchOptions::from_settings(&SearchSettings::get_global(cx));
+
+        let settings_subscription = cx.observe_global::<SettingsStore>(move |this, cx| {
+            this.default_options = SearchOptions::from_settings(&SearchSettings::get_global(cx));
+        });
+
         Self {
             query_editor,
             query_editor_focused: false,
@@ -514,8 +521,8 @@ impl BufferSearchBar {
             active_searchable_item_subscription: None,
             active_match_index: None,
             searchable_items_with_matches: Default::default(),
-            default_options: SearchOptions::NONE,
-            search_options: SearchOptions::NONE,
+            default_options: search_options,
+            search_options,
             pending_search: None,
             query_contains_error: false,
             dismissed: true,
@@ -530,6 +537,7 @@ impl BufferSearchBar {
             scroll_handle: ScrollHandle::new(),
             editor_scroll_handle: ScrollHandle::new(),
             editor_needed_width: px(0.),
+            _subscriptions: vec![settings_subscription],
         }
     }
 
@@ -602,6 +610,9 @@ impl BufferSearchBar {
         let Some(handle) = self.active_searchable_item.as_ref() else {
             return false;
         };
+        if self.default_options != self.search_options {
+            self.search_options = self.default_options;
+        }
 
         self.dismissed = false;
         handle.search_bar_visibility_changed(true, cx);
@@ -1203,6 +1214,7 @@ mod tests {
             language::init(cx);
             Project::init_settings(cx);
             theme::init(theme::LoadThemes::JustBase, cx);
+            crate::init(cx);
         });
     }
 

crates/search/src/project_search.rs

@@ -668,7 +668,9 @@ impl ProjectSearchView {
         let (mut options, filters_enabled) = if let Some(settings) = settings {
             (settings.search_options, settings.filters_enabled)
         } else {
-            (SearchOptions::NONE, false)
+            let search_options =
+                SearchOptions::from_settings(&EditorSettings::get_global(cx).search);
+            (search_options, false)
         };
 
         {
@@ -3537,7 +3539,7 @@ pub mod tests {
             editor::init(cx);
             workspace::init_settings(cx);
             Project::init_settings(cx);
-            super::init(cx);
+            crate::init(cx);
         });
     }
 

crates/search/src/search.rs

@@ -1,8 +1,10 @@
 use bitflags::bitflags;
 pub use buffer_search::BufferSearchBar;
+use editor::SearchSettings;
 use gpui::{actions, Action, AppContext, IntoElement};
 use project::search::SearchQuery;
 pub use project_search::ProjectSearchView;
+use settings::Settings;
 use ui::{prelude::*, Tooltip};
 use ui::{ButtonStyle, IconButton};
 use workspace::notifications::NotificationId;
@@ -13,6 +15,7 @@ pub mod project_search;
 pub(crate) mod search_bar;
 
 pub fn init(cx: &mut AppContext) {
+    SearchSettings::register(cx);
     menu::init();
     buffer_search::init(cx);
     project_search::init(cx);
@@ -93,6 +96,15 @@ impl SearchOptions {
         options
     }
 
+    pub fn from_settings(settings: &SearchSettings) -> SearchOptions {
+        let mut options = SearchOptions::NONE;
+        options.set(SearchOptions::WHOLE_WORD, settings.whole_word);
+        options.set(SearchOptions::CASE_SENSITIVE, settings.case_sensitive);
+        options.set(SearchOptions::INCLUDE_IGNORED, settings.include_ignored);
+        options.set(SearchOptions::REGEX, settings.regex);
+        options
+    }
+
     pub fn as_button(
         &self,
         active: bool,