1use std::{cell::RefCell, ops::Range, rc::Rc};
2
3use acp_thread::{AcpThread, AgentSessionList, AgentThreadEntry};
4use agent::ThreadStore;
5use agent_client_protocol::{self as acp, ToolCallId};
6use collections::HashMap;
7use editor::{Editor, EditorMode, MinimapVisibility, SizingBehavior};
8use gpui::{
9 AnyEntity, App, AppContext as _, Entity, EntityId, EventEmitter, FocusHandle, Focusable,
10 ScrollHandle, SharedString, TextStyleRefinement, WeakEntity, Window,
11};
12use language::language_settings::SoftWrap;
13use project::Project;
14use prompt_store::PromptStore;
15use settings::Settings as _;
16use terminal_view::TerminalView;
17use theme::ThemeSettings;
18use ui::{Context, TextSize};
19use workspace::Workspace;
20
21use crate::acp::message_editor::{MessageEditor, MessageEditorEvent};
22
23pub struct EntryViewState {
24 workspace: WeakEntity<Workspace>,
25 project: WeakEntity<Project>,
26 thread_store: Option<Entity<ThreadStore>>,
27 session_list: Rc<RefCell<Option<Rc<dyn AgentSessionList>>>>,
28 prompt_store: Option<Entity<PromptStore>>,
29 entries: Vec<Entry>,
30 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
31 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
32 agent_name: SharedString,
33}
34
35impl EntryViewState {
36 pub fn new(
37 workspace: WeakEntity<Workspace>,
38 project: WeakEntity<Project>,
39 thread_store: Option<Entity<ThreadStore>>,
40 session_list: Rc<RefCell<Option<Rc<dyn AgentSessionList>>>>,
41 prompt_store: Option<Entity<PromptStore>>,
42 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
43 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
44 agent_name: SharedString,
45 ) -> Self {
46 Self {
47 workspace,
48 project,
49 thread_store,
50 session_list,
51 prompt_store,
52 entries: Vec::new(),
53 prompt_capabilities,
54 available_commands,
55 agent_name,
56 }
57 }
58
59 pub fn entry(&self, index: usize) -> Option<&Entry> {
60 self.entries.get(index)
61 }
62
63 pub fn sync_entry(
64 &mut self,
65 index: usize,
66 thread: &Entity<AcpThread>,
67 window: &mut Window,
68 cx: &mut Context<Self>,
69 ) {
70 let Some(thread_entry) = thread.read(cx).entries().get(index) else {
71 return;
72 };
73
74 match thread_entry {
75 AgentThreadEntry::UserMessage(message) => {
76 let has_id = message.id.is_some();
77 let chunks = message.chunks.clone();
78 if let Some(Entry::UserMessage(editor)) = self.entries.get_mut(index) {
79 if !editor.focus_handle(cx).is_focused(window) {
80 // Only update if we are not editing.
81 // If we are, cancelling the edit will set the message to the newest content.
82 editor.update(cx, |editor, cx| {
83 editor.set_message(chunks, window, cx);
84 });
85 }
86 } else {
87 let message_editor = cx.new(|cx| {
88 let mut editor = MessageEditor::new(
89 self.workspace.clone(),
90 self.project.clone(),
91 self.thread_store.clone(),
92 self.session_list.clone(),
93 self.prompt_store.clone(),
94 self.prompt_capabilities.clone(),
95 self.available_commands.clone(),
96 self.agent_name.clone(),
97 "Edit message － @ to include context",
98 editor::EditorMode::AutoHeight {
99 min_lines: 1,
100 max_lines: None,
101 },
102 window,
103 cx,
104 );
105 if !has_id {
106 editor.set_read_only(true, cx);
107 }
108 editor.set_message(chunks, window, cx);
109 editor
110 });
111 cx.subscribe(&message_editor, move |_, editor, event, cx| {
112 cx.emit(EntryViewEvent {
113 entry_index: index,
114 view_event: ViewEvent::MessageEditorEvent(editor, *event),
115 })
116 })
117 .detach();
118 self.set_entry(index, Entry::UserMessage(message_editor));
119 }
120 }
121 AgentThreadEntry::ToolCall(tool_call) => {
122 let id = tool_call.id.clone();
123 let terminals = tool_call.terminals().cloned().collect::<Vec<_>>();
124 let diffs = tool_call.diffs().cloned().collect::<Vec<_>>();
125
126 let views = if let Some(Entry::Content(views)) = self.entries.get_mut(index) {
127 views
128 } else {
129 self.set_entry(index, Entry::empty());
130 let Some(Entry::Content(views)) = self.entries.get_mut(index) else {
131 unreachable!()
132 };
133 views
134 };
135
136 let is_tool_call_completed =
137 matches!(tool_call.status, acp_thread::ToolCallStatus::Completed);
138
139 for terminal in terminals {
140 match views.entry(terminal.entity_id()) {
141 collections::hash_map::Entry::Vacant(entry) => {
142 let element = create_terminal(
143 self.workspace.clone(),
144 self.project.clone(),
145 terminal.clone(),
146 window,
147 cx,
148 )
149 .into_any();
150 cx.emit(EntryViewEvent {
151 entry_index: index,
152 view_event: ViewEvent::NewTerminal(id.clone()),
153 });
154 entry.insert(element);
155 }
156 collections::hash_map::Entry::Occupied(_entry) => {
157 if is_tool_call_completed && terminal.read(cx).output().is_none() {
158 cx.emit(EntryViewEvent {
159 entry_index: index,
160 view_event: ViewEvent::TerminalMovedToBackground(id.clone()),
161 });
162 }
163 }
164 }
165 }
166
167 for diff in diffs {
168 views.entry(diff.entity_id()).or_insert_with(|| {
169 let element = create_editor_diff(diff.clone(), window, cx).into_any();
170 cx.emit(EntryViewEvent {
171 entry_index: index,
172 view_event: ViewEvent::NewDiff(id.clone()),
173 });
174 element
175 });
176 }
177 }
178 AgentThreadEntry::AssistantMessage(message) => {
179 let entry = if let Some(Entry::AssistantMessage(entry)) =
180 self.entries.get_mut(index)
181 {
182 entry
183 } else {
184 self.set_entry(
185 index,
186 Entry::AssistantMessage(AssistantMessageEntry::default()),
187 );
188 let Some(Entry::AssistantMessage(entry)) = self.entries.get_mut(index) else {
189 unreachable!()
190 };
191 entry
192 };
193 entry.sync(message);
194 }
195 };
196 }
197
198 fn set_entry(&mut self, index: usize, entry: Entry) {
199 if index == self.entries.len() {
200 self.entries.push(entry);
201 } else {
202 self.entries[index] = entry;
203 }
204 }
205
206 pub fn remove(&mut self, range: Range<usize>) {
207 self.entries.drain(range);
208 }
209
210 pub fn agent_ui_font_size_changed(&mut self, cx: &mut App) {
211 for entry in self.entries.iter() {
212 match entry {
213 Entry::UserMessage { .. } | Entry::AssistantMessage { .. } => {}
214 Entry::Content(response_views) => {
215 for view in response_views.values() {
216 if let Ok(diff_editor) = view.clone().downcast::<Editor>() {
217 diff_editor.update(cx, |diff_editor, cx| {
218 diff_editor.set_text_style_refinement(
219 diff_editor_text_style_refinement(cx),
220 );
221 cx.notify();
222 })
223 }
224 }
225 }
226 }
227 }
228 }
229}
230
231impl EventEmitter<EntryViewEvent> for EntryViewState {}
232
233pub struct EntryViewEvent {
234 pub entry_index: usize,
235 pub view_event: ViewEvent,
236}
237
238pub enum ViewEvent {
239 NewDiff(ToolCallId),
240 NewTerminal(ToolCallId),
241 TerminalMovedToBackground(ToolCallId),
242 MessageEditorEvent(Entity<MessageEditor>, MessageEditorEvent),
243}
244
245#[derive(Default, Debug)]
246pub struct AssistantMessageEntry {
247 scroll_handles_by_chunk_index: HashMap<usize, ScrollHandle>,
248}
249
250impl AssistantMessageEntry {
251 pub fn scroll_handle_for_chunk(&self, ix: usize) -> Option<ScrollHandle> {
252 self.scroll_handles_by_chunk_index.get(&ix).cloned()
253 }
254
255 pub fn sync(&mut self, message: &acp_thread::AssistantMessage) {
256 if let Some(acp_thread::AssistantMessageChunk::Thought { .. }) = message.chunks.last() {
257 let ix = message.chunks.len() - 1;
258 let handle = self.scroll_handles_by_chunk_index.entry(ix).or_default();
259 handle.scroll_to_bottom();
260 }
261 }
262}
263
264#[derive(Debug)]
265pub enum Entry {
266 UserMessage(Entity<MessageEditor>),
267 AssistantMessage(AssistantMessageEntry),
268 Content(HashMap<EntityId, AnyEntity>),
269}
270
271impl Entry {
272 pub fn focus_handle(&self, cx: &App) -> Option<FocusHandle> {
273 match self {
274 Self::UserMessage(editor) => Some(editor.read(cx).focus_handle(cx)),
275 Self::AssistantMessage(_) | Self::Content(_) => None,
276 }
277 }
278
279 pub fn message_editor(&self) -> Option<&Entity<MessageEditor>> {
280 match self {
281 Self::UserMessage(editor) => Some(editor),
282 Self::AssistantMessage(_) | Self::Content(_) => None,
283 }
284 }
285
286 pub fn editor_for_diff(&self, diff: &Entity<acp_thread::Diff>) -> Option<Entity<Editor>> {
287 self.content_map()?
288 .get(&diff.entity_id())
289 .cloned()
290 .map(|entity| entity.downcast::<Editor>().unwrap())
291 }
292
293 pub fn terminal(
294 &self,
295 terminal: &Entity<acp_thread::Terminal>,
296 ) -> Option<Entity<TerminalView>> {
297 self.content_map()?
298 .get(&terminal.entity_id())
299 .cloned()
300 .map(|entity| entity.downcast::<TerminalView>().unwrap())
301 }
302
303 pub fn scroll_handle_for_assistant_message_chunk(
304 &self,
305 chunk_ix: usize,
306 ) -> Option<ScrollHandle> {
307 match self {
308 Self::AssistantMessage(message) => message.scroll_handle_for_chunk(chunk_ix),
309 Self::UserMessage(_) | Self::Content(_) => None,
310 }
311 }
312
313 fn content_map(&self) -> Option<&HashMap<EntityId, AnyEntity>> {
314 match self {
315 Self::Content(map) => Some(map),
316 _ => None,
317 }
318 }
319
320 fn empty() -> Self {
321 Self::Content(HashMap::default())
322 }
323
324 #[cfg(test)]
325 pub fn has_content(&self) -> bool {
326 match self {
327 Self::Content(map) => !map.is_empty(),
328 Self::UserMessage(_) | Self::AssistantMessage(_) => false,
329 }
330 }
331}
332
333fn create_terminal(
334 workspace: WeakEntity<Workspace>,
335 project: WeakEntity<Project>,
336 terminal: Entity<acp_thread::Terminal>,
337 window: &mut Window,
338 cx: &mut App,
339) -> Entity<TerminalView> {
340 cx.new(|cx| {
341 let mut view = TerminalView::new(
342 terminal.read(cx).inner().clone(),
343 workspace,
344 None,
345 project,
346 window,
347 cx,
348 );
349 view.set_embedded_mode(Some(1000), cx);
350 view
351 })
352}
353
354fn create_editor_diff(
355 diff: Entity<acp_thread::Diff>,
356 window: &mut Window,
357 cx: &mut App,
358) -> Entity<Editor> {
359 cx.new(|cx| {
360 let mut editor = Editor::new(
361 EditorMode::Full {
362 scale_ui_elements_with_buffer_font_size: false,
363 show_active_line_background: false,
364 sizing_behavior: SizingBehavior::SizeByContent,
365 },
366 diff.read(cx).multibuffer().clone(),
367 None,
368 window,
369 cx,
370 );
371 editor.set_show_gutter(false, cx);
372 editor.disable_inline_diagnostics();
373 editor.disable_expand_excerpt_buttons(cx);
374 editor.set_show_vertical_scrollbar(false, cx);
375 editor.set_minimap_visibility(MinimapVisibility::Disabled, window, cx);
376 editor.set_soft_wrap_mode(SoftWrap::None, cx);
377 editor.scroll_manager.set_forbid_vertical_scroll(true);
378 editor.set_show_indent_guides(false, cx);
379 editor.set_read_only(true);
380 editor.set_show_breakpoints(false, cx);
381 editor.set_show_code_actions(false, cx);
382 editor.set_show_git_diff_gutter(false, cx);
383 editor.set_expand_all_diff_hunks(cx);
384 editor.set_text_style_refinement(diff_editor_text_style_refinement(cx));
385 editor
386 })
387}
388
389fn diff_editor_text_style_refinement(cx: &mut App) -> TextStyleRefinement {
390 TextStyleRefinement {
391 font_size: Some(
392 TextSize::Small
393 .rems(cx)
394 .to_pixels(ThemeSettings::get_global(cx).agent_ui_font_size(cx))
395 .into(),
396 ),
397 ..Default::default()
398 }
399}
400
401#[cfg(test)]
402mod tests {
403 use std::{cell::RefCell, path::Path, rc::Rc};
404
405 use acp_thread::{AgentConnection, StubAgentConnection};
406 use agent_client_protocol as acp;
407 use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
408 use editor::RowInfo;
409 use fs::FakeFs;
410 use gpui::{AppContext as _, TestAppContext};
411
412 use crate::acp::entry_view_state::EntryViewState;
413 use multi_buffer::MultiBufferRow;
414 use pretty_assertions::assert_matches;
415 use project::Project;
416 use serde_json::json;
417 use settings::SettingsStore;
418 use util::path;
419 use workspace::Workspace;
420
421 #[gpui::test]
422 async fn test_diff_sync(cx: &mut TestAppContext) {
423 init_test(cx);
424 let fs = FakeFs::new(cx.executor());
425 fs.insert_tree(
426 "/project",
427 json!({
428 "hello.txt": "hi world"
429 }),
430 )
431 .await;
432 let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
433
434 let (workspace, cx) =
435 cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
436
437 let tool_call = acp::ToolCall::new("tool", "Tool call")
438 .status(acp::ToolCallStatus::InProgress)
439 .content(vec![acp::ToolCallContent::Diff(
440 acp::Diff::new("/project/hello.txt", "hello world").old_text("hi world"),
441 )]);
442 let connection = Rc::new(StubAgentConnection::new());
443 let thread = cx
444 .update(|_, cx| {
445 connection
446 .clone()
447 .new_thread(project.clone(), Path::new(path!("/project")), cx)
448 })
449 .await
450 .unwrap();
451 let session_id = thread.update(cx, |thread, _| thread.session_id().clone());
452
453 cx.update(|_, cx| {
454 connection.send_update(session_id, acp::SessionUpdate::ToolCall(tool_call), cx)
455 });
456
457 let thread_store = None;
458 let session_list = Rc::new(RefCell::new(None));
459
460 let view_state = cx.new(|_cx| {
461 EntryViewState::new(
462 workspace.downgrade(),
463 project.downgrade(),
464 thread_store,
465 session_list,
466 None,
467 Default::default(),
468 Default::default(),
469 "Test Agent".into(),
470 )
471 });
472
473 view_state.update_in(cx, |view_state, window, cx| {
474 view_state.sync_entry(0, &thread, window, cx)
475 });
476
477 let diff = thread.read_with(cx, |thread, _cx| {
478 thread
479 .entries()
480 .get(0)
481 .unwrap()
482 .diffs()
483 .next()
484 .unwrap()
485 .clone()
486 });
487
488 cx.run_until_parked();
489
490 let diff_editor = view_state.read_with(cx, |view_state, _cx| {
491 view_state.entry(0).unwrap().editor_for_diff(&diff).unwrap()
492 });
493 assert_eq!(
494 diff_editor.read_with(cx, |editor, cx| editor.text(cx)),
495 "hi world\nhello world"
496 );
497 let row_infos = diff_editor.read_with(cx, |editor, cx| {
498 let multibuffer = editor.buffer().read(cx);
499 multibuffer
500 .snapshot(cx)
501 .row_infos(MultiBufferRow(0))
502 .collect::<Vec<_>>()
503 });
504 assert_matches!(
505 row_infos.as_slice(),
506 [
507 RowInfo {
508 multibuffer_row: Some(MultiBufferRow(0)),
509 diff_status: Some(DiffHunkStatus {
510 kind: DiffHunkStatusKind::Deleted,
511 ..
512 }),
513 ..
514 },
515 RowInfo {
516 multibuffer_row: Some(MultiBufferRow(1)),
517 diff_status: Some(DiffHunkStatus {
518 kind: DiffHunkStatusKind::Added,
519 ..
520 }),
521 ..
522 }
523 ]
524 );
525 }
526
527 fn init_test(cx: &mut TestAppContext) {
528 cx.update(|cx| {
529 let settings_store = SettingsStore::test(cx);
530 cx.set_global(settings_store);
531 theme::init(theme::LoadThemes::JustBase, cx);
532 release_channel::init(semver::Version::new(0, 0, 0), cx);
533 });
534 }
535}