1use std::sync::Arc;
2
3use fuzzy::StringMatchCandidate;
4use gpui::{AppContext, DismissEvent, FocusHandle, FocusableView, Task, View, WeakModel, WeakView};
5use picker::{Picker, PickerDelegate};
6use ui::{prelude::*, ListItem};
7
8use crate::context_picker::{ConfirmBehavior, ContextPicker};
9use crate::context_store::{self, ContextStore};
10use crate::thread::ThreadId;
11use crate::thread_store::ThreadStore;
12
13pub struct ThreadContextPicker {
14 picker: View<Picker<ThreadContextPickerDelegate>>,
15}
16
17impl ThreadContextPicker {
18 pub fn new(
19 thread_store: WeakModel<ThreadStore>,
20 context_picker: WeakView<ContextPicker>,
21 context_store: WeakModel<context_store::ContextStore>,
22 confirm_behavior: ConfirmBehavior,
23 cx: &mut ViewContext<Self>,
24 ) -> Self {
25 let delegate = ThreadContextPickerDelegate::new(
26 thread_store,
27 context_picker,
28 context_store,
29 confirm_behavior,
30 );
31 let picker = cx.new_view(|cx| Picker::uniform_list(delegate, cx));
32
33 ThreadContextPicker { picker }
34 }
35}
36
37impl FocusableView for ThreadContextPicker {
38 fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
39 self.picker.focus_handle(cx)
40 }
41}
42
43impl Render for ThreadContextPicker {
44 fn render(&mut self, _cx: &mut ViewContext<Self>) -> impl IntoElement {
45 self.picker.clone()
46 }
47}
48
49#[derive(Debug, Clone)]
50pub struct ThreadContextEntry {
51 pub id: ThreadId,
52 pub summary: SharedString,
53}
54
55pub struct ThreadContextPickerDelegate {
56 thread_store: WeakModel<ThreadStore>,
57 context_picker: WeakView<ContextPicker>,
58 context_store: WeakModel<context_store::ContextStore>,
59 confirm_behavior: ConfirmBehavior,
60 matches: Vec<ThreadContextEntry>,
61 selected_index: usize,
62}
63
64impl ThreadContextPickerDelegate {
65 pub fn new(
66 thread_store: WeakModel<ThreadStore>,
67 context_picker: WeakView<ContextPicker>,
68 context_store: WeakModel<context_store::ContextStore>,
69 confirm_behavior: ConfirmBehavior,
70 ) -> Self {
71 ThreadContextPickerDelegate {
72 thread_store,
73 context_picker,
74 context_store,
75 confirm_behavior,
76 matches: Vec::new(),
77 selected_index: 0,
78 }
79 }
80}
81
82impl PickerDelegate for ThreadContextPickerDelegate {
83 type ListItem = ListItem;
84
85 fn match_count(&self) -> usize {
86 self.matches.len()
87 }
88
89 fn selected_index(&self) -> usize {
90 self.selected_index
91 }
92
93 fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
94 self.selected_index = ix;
95 }
96
97 fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
98 "Search threads…".into()
99 }
100
101 fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
102 let Ok(threads) = self.thread_store.update(cx, |this, cx| {
103 this.threads(cx)
104 .into_iter()
105 .map(|thread| {
106 let id = thread.read(cx).id().clone();
107 let summary = thread.read(cx).summary_or_default();
108 ThreadContextEntry { id, summary }
109 })
110 .collect::<Vec<_>>()
111 }) else {
112 return Task::ready(());
113 };
114
115 let executor = cx.background_executor().clone();
116 let search_task = cx.background_executor().spawn(async move {
117 if query.is_empty() {
118 threads
119 } else {
120 let candidates = threads
121 .iter()
122 .enumerate()
123 .map(|(id, thread)| StringMatchCandidate::new(id, &thread.summary))
124 .collect::<Vec<_>>();
125 let matches = fuzzy::match_strings(
126 &candidates,
127 &query,
128 false,
129 100,
130 &Default::default(),
131 executor,
132 )
133 .await;
134
135 matches
136 .into_iter()
137 .map(|mat| threads[mat.candidate_id].clone())
138 .collect()
139 }
140 });
141
142 cx.spawn(|this, mut cx| async move {
143 let matches = search_task.await;
144 this.update(&mut cx, |this, cx| {
145 this.delegate.matches = matches;
146 this.delegate.selected_index = 0;
147 cx.notify();
148 })
149 .ok();
150 })
151 }
152
153 fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
154 let Some(entry) = self.matches.get(self.selected_index) else {
155 return;
156 };
157
158 let Some(thread_store) = self.thread_store.upgrade() else {
159 return;
160 };
161
162 let Some(thread) = thread_store.update(cx, |this, cx| this.open_thread(&entry.id, cx))
163 else {
164 return;
165 };
166
167 self.context_store
168 .update(cx, |context_store, cx| context_store.add_thread(thread, cx))
169 .ok();
170
171 match self.confirm_behavior {
172 ConfirmBehavior::KeepOpen => {}
173 ConfirmBehavior::Close => self.dismissed(cx),
174 }
175 }
176
177 fn dismissed(&mut self, cx: &mut ViewContext<Picker<Self>>) {
178 self.context_picker
179 .update(cx, |this, cx| {
180 this.reset_mode(cx);
181 cx.emit(DismissEvent);
182 })
183 .ok();
184 }
185
186 fn render_match(
187 &self,
188 ix: usize,
189 selected: bool,
190 cx: &mut ViewContext<Picker<Self>>,
191 ) -> Option<Self::ListItem> {
192 let thread = &self.matches[ix];
193
194 Some(ListItem::new(ix).inset(true).toggle_state(selected).child(
195 render_thread_context_entry(thread, self.context_store.clone(), cx),
196 ))
197 }
198}
199
200pub fn render_thread_context_entry(
201 thread: &ThreadContextEntry,
202 context_store: WeakModel<ContextStore>,
203 cx: &mut WindowContext,
204) -> Div {
205 let added = context_store.upgrade().map_or(false, |ctx_store| {
206 ctx_store.read(cx).includes_thread(&thread.id).is_some()
207 });
208
209 h_flex()
210 .gap_1()
211 .w_full()
212 .child(Icon::new(IconName::MessageCircle).size(IconSize::Small))
213 .child(Label::new(thread.summary.clone()))
214 .child(div().w_full())
215 .when(added, |el| {
216 el.child(
217 h_flex()
218 .gap_1()
219 .child(
220 Icon::new(IconName::Check)
221 .size(IconSize::Small)
222 .color(Color::Success),
223 )
224 .child(Label::new("Added").size(LabelSize::Small)),
225 )
226 })
227}