1use std::sync::Arc;
2
3use editor::{Editor, EditorElement, EditorEvent, EditorStyle};
4use fs::Fs;
5use gpui::{
6 AppContext, DismissEvent, FocusableView, Model, Subscription, TextStyle, View, WeakModel,
7 WeakView,
8};
9use language_model::{LanguageModelRegistry, LanguageModelRequestTool};
10use language_model_selector::LanguageModelSelector;
11use rope::Point;
12use settings::Settings;
13use theme::{get_ui_font_size, ThemeSettings};
14use ui::{
15 prelude::*, ButtonLike, ElevationIndex, KeyBinding, PopoverMenu, PopoverMenuHandle,
16 SwitchWithLabel,
17};
18use workspace::Workspace;
19
20use crate::assistant_model_selector::AssistantModelSelector;
21use crate::context_picker::{ConfirmBehavior, ContextPicker};
22use crate::context_store::ContextStore;
23use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
24use crate::thread::{RequestKind, Thread};
25use crate::thread_store::ThreadStore;
26use crate::{Chat, RemoveAllContext, ToggleContextPicker, ToggleModelSelector};
27
28pub struct MessageEditor {
29 thread: Model<Thread>,
30 editor: View<Editor>,
31 context_store: Model<ContextStore>,
32 context_strip: View<ContextStrip>,
33 context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
34 inline_context_picker: View<ContextPicker>,
35 inline_context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
36 model_selector: View<AssistantModelSelector>,
37 model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
38 use_tools: bool,
39 _subscriptions: Vec<Subscription>,
40}
41
42impl MessageEditor {
43 pub fn new(
44 fs: Arc<dyn Fs>,
45 workspace: WeakView<Workspace>,
46 thread_store: WeakModel<ThreadStore>,
47 thread: Model<Thread>,
48 cx: &mut ViewContext<Self>,
49 ) -> Self {
50 let context_store = cx.new_model(|_cx| ContextStore::new());
51 let context_picker_menu_handle = PopoverMenuHandle::default();
52 let inline_context_picker_menu_handle = PopoverMenuHandle::default();
53 let model_selector_menu_handle = PopoverMenuHandle::default();
54
55 let editor = cx.new_view(|cx| {
56 let mut editor = Editor::auto_height(10, cx);
57 editor.set_placeholder_text("Ask anything…", cx);
58 editor.set_show_indent_guides(false, cx);
59
60 editor
61 });
62
63 let inline_context_picker = cx.new_view(|cx| {
64 ContextPicker::new(
65 workspace.clone(),
66 Some(thread_store.clone()),
67 context_store.downgrade(),
68 ConfirmBehavior::Close,
69 cx,
70 )
71 });
72
73 let context_strip = cx.new_view(|cx| {
74 ContextStrip::new(
75 context_store.clone(),
76 workspace.clone(),
77 Some(thread_store.clone()),
78 editor.focus_handle(cx),
79 context_picker_menu_handle.clone(),
80 SuggestContextKind::File,
81 cx,
82 )
83 });
84
85 let subscriptions = vec![
86 cx.subscribe(&editor, Self::handle_editor_event),
87 cx.subscribe(
88 &inline_context_picker,
89 Self::handle_inline_context_picker_event,
90 ),
91 cx.subscribe(&context_strip, Self::handle_context_strip_event),
92 ];
93
94 Self {
95 thread,
96 editor: editor.clone(),
97 context_store,
98 context_strip,
99 context_picker_menu_handle,
100 inline_context_picker,
101 inline_context_picker_menu_handle,
102 model_selector: cx.new_view(|cx| {
103 AssistantModelSelector::new(fs, model_selector_menu_handle.clone(), cx)
104 }),
105 model_selector_menu_handle,
106 use_tools: false,
107 _subscriptions: subscriptions,
108 }
109 }
110
111 fn toggle_model_selector(&mut self, _: &ToggleModelSelector, cx: &mut ViewContext<Self>) {
112 self.model_selector_menu_handle.toggle(cx)
113 }
114
115 fn toggle_context_picker(&mut self, _: &ToggleContextPicker, cx: &mut ViewContext<Self>) {
116 self.context_picker_menu_handle.toggle(cx);
117 }
118
119 pub fn remove_all_context(&mut self, _: &RemoveAllContext, cx: &mut ViewContext<Self>) {
120 self.context_store.update(cx, |store, _cx| store.clear());
121 cx.notify();
122 }
123
124 fn chat(&mut self, _: &Chat, cx: &mut ViewContext<Self>) {
125 self.send_to_model(RequestKind::Chat, cx);
126 }
127
128 fn send_to_model(
129 &mut self,
130 request_kind: RequestKind,
131 cx: &mut ViewContext<Self>,
132 ) -> Option<()> {
133 let provider = LanguageModelRegistry::read_global(cx).active_provider();
134 if provider
135 .as_ref()
136 .map_or(false, |provider| provider.must_accept_terms(cx))
137 {
138 cx.notify();
139 return None;
140 }
141
142 let model_registry = LanguageModelRegistry::read_global(cx);
143 let model = model_registry.active_model()?;
144
145 let user_message = self.editor.update(cx, |editor, cx| {
146 let text = editor.text(cx);
147 editor.clear(cx);
148 text
149 });
150 let context = self
151 .context_store
152 .update(cx, |this, _cx| this.context().clone());
153
154 self.thread.update(cx, |thread, cx| {
155 thread.insert_user_message(user_message, context, cx);
156 let mut request = thread.to_completion_request(request_kind, cx);
157
158 if self.use_tools {
159 request.tools = thread
160 .tools()
161 .tools(cx)
162 .into_iter()
163 .map(|tool| LanguageModelRequestTool {
164 name: tool.name(),
165 description: tool.description(),
166 input_schema: tool.input_schema(),
167 })
168 .collect();
169 }
170
171 thread.stream_completion(request, model, cx)
172 });
173
174 None
175 }
176
177 fn handle_editor_event(
178 &mut self,
179 editor: View<Editor>,
180 event: &EditorEvent,
181 cx: &mut ViewContext<Self>,
182 ) {
183 match event {
184 EditorEvent::SelectionsChanged { .. } => {
185 editor.update(cx, |editor, cx| {
186 let snapshot = editor.buffer().read(cx).snapshot(cx);
187 let newest_cursor = editor.selections.newest::<Point>(cx).head();
188 if newest_cursor.column > 0 {
189 let behind_cursor = Point::new(newest_cursor.row, newest_cursor.column - 1);
190 let char_behind_cursor = snapshot.chars_at(behind_cursor).next();
191 if char_behind_cursor == Some('@') {
192 self.inline_context_picker_menu_handle.show(cx);
193 }
194 }
195 });
196 }
197 _ => {}
198 }
199 }
200
201 fn handle_inline_context_picker_event(
202 &mut self,
203 _inline_context_picker: View<ContextPicker>,
204 _event: &DismissEvent,
205 cx: &mut ViewContext<Self>,
206 ) {
207 let editor_focus_handle = self.editor.focus_handle(cx);
208 cx.focus(&editor_focus_handle);
209 }
210
211 fn handle_context_strip_event(
212 &mut self,
213 _context_strip: View<ContextStrip>,
214 ContextStripEvent::PickerDismissed: &ContextStripEvent,
215 cx: &mut ViewContext<Self>,
216 ) {
217 let editor_focus_handle = self.editor.focus_handle(cx);
218 cx.focus(&editor_focus_handle);
219 }
220}
221
222impl FocusableView for MessageEditor {
223 fn focus_handle(&self, cx: &AppContext) -> gpui::FocusHandle {
224 self.editor.focus_handle(cx)
225 }
226}
227
228impl Render for MessageEditor {
229 fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
230 let font_size = TextSize::Default.rems(cx);
231 let line_height = font_size.to_pixels(cx.rem_size()) * 1.5;
232 let focus_handle = self.editor.focus_handle(cx);
233 let inline_context_picker = self.inline_context_picker.clone();
234 let bg_color = cx.theme().colors().editor_background;
235
236 v_flex()
237 .key_context("MessageEditor")
238 .on_action(cx.listener(Self::chat))
239 .on_action(cx.listener(Self::toggle_model_selector))
240 .on_action(cx.listener(Self::toggle_context_picker))
241 .on_action(cx.listener(Self::remove_all_context))
242 .size_full()
243 .gap_2()
244 .p_2()
245 .bg(bg_color)
246 .child(self.context_strip.clone())
247 .child(
248 v_flex()
249 .gap_4()
250 .child({
251 let settings = ThemeSettings::get_global(cx);
252 let text_style = TextStyle {
253 color: cx.theme().colors().text,
254 font_family: settings.ui_font.family.clone(),
255 font_features: settings.ui_font.features.clone(),
256 font_size: font_size.into(),
257 font_weight: settings.ui_font.weight,
258 line_height: line_height.into(),
259 ..Default::default()
260 };
261
262 EditorElement::new(
263 &self.editor,
264 EditorStyle {
265 background: bg_color,
266 local_player: cx.theme().players().local(),
267 text: text_style,
268 ..Default::default()
269 },
270 )
271 })
272 .child(
273 PopoverMenu::new("inline-context-picker")
274 .menu(move |_cx| Some(inline_context_picker.clone()))
275 .attach(gpui::Corner::TopLeft)
276 .anchor(gpui::Corner::BottomLeft)
277 .offset(gpui::Point {
278 x: px(0.0),
279 y: (-get_ui_font_size(cx) * 2) - px(4.0),
280 })
281 .with_handle(self.inline_context_picker_menu_handle.clone()),
282 )
283 .child(
284 h_flex()
285 .justify_between()
286 .child(SwitchWithLabel::new(
287 "use-tools",
288 Label::new("Tools").size(LabelSize::Small),
289 self.use_tools.into(),
290 cx.listener(|this, selection, _cx| {
291 this.use_tools = match selection {
292 ToggleState::Selected => true,
293 ToggleState::Unselected | ToggleState::Indeterminate => {
294 false
295 }
296 };
297 }),
298 ))
299 .child(
300 h_flex().gap_1().child(self.model_selector.clone()).child(
301 ButtonLike::new("chat")
302 .style(ButtonStyle::Filled)
303 .layer(ElevationIndex::ModalSurface)
304 .child(Label::new("Submit").size(LabelSize::Small))
305 .children(
306 KeyBinding::for_action_in(&Chat, &focus_handle, cx)
307 .map(|binding| binding.into_any_element()),
308 )
309 .on_click(move |_event, cx| {
310 focus_handle.dispatch_action(&Chat, cx);
311 }),
312 ),
313 ),
314 ),
315 )
316 }
317}