1use std::{cell::RefCell, ops::Range, rc::Rc};
2
3use acp_thread::{AcpThread, AgentThreadEntry};
4use agent::HistoryStore;
5use agent_client_protocol::{self as acp, ToolCallId};
6use collections::HashMap;
7use editor::{Editor, EditorMode, MinimapVisibility};
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: Entity<Project>,
26 history_store: Entity<HistoryStore>,
27 prompt_store: Option<Entity<PromptStore>>,
28 entries: Vec<Entry>,
29 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
30 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
31 agent_name: SharedString,
32}
33
34impl EntryViewState {
35 pub const fn new(
36 workspace: WeakEntity<Workspace>,
37 project: Entity<Project>,
38 history_store: Entity<HistoryStore>,
39 prompt_store: Option<Entity<PromptStore>>,
40 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
41 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
42 agent_name: SharedString,
43 ) -> Self {
44 Self {
45 workspace,
46 project,
47 history_store,
48 prompt_store,
49 entries: Vec::new(),
50 prompt_capabilities,
51 available_commands,
52 agent_name,
53 }
54 }
55
56 pub fn entry(&self, index: usize) -> Option<&Entry> {
57 self.entries.get(index)
58 }
59
60 pub fn sync_entry(
61 &mut self,
62 index: usize,
63 thread: &Entity<AcpThread>,
64 window: &mut Window,
65 cx: &mut Context<Self>,
66 ) {
67 let Some(thread_entry) = thread.read(cx).entries().get(index) else {
68 return;
69 };
70
71 match thread_entry {
72 AgentThreadEntry::UserMessage(message) => {
73 let has_id = message.id.is_some();
74 let chunks = message.chunks.clone();
75 if let Some(Entry::UserMessage(editor)) = self.entries.get_mut(index) {
76 if !editor.focus_handle(cx).is_focused(window) {
77 // Only update if we are not editing.
78 // If we are, cancelling the edit will set the message to the newest content.
79 editor.update(cx, |editor, cx| {
80 editor.set_message(chunks, window, cx);
81 });
82 }
83 } else {
84 let message_editor = cx.new(|cx| {
85 let mut editor = MessageEditor::new(
86 self.workspace.clone(),
87 self.project.clone(),
88 self.history_store.clone(),
89 self.prompt_store.clone(),
90 self.prompt_capabilities.clone(),
91 self.available_commands.clone(),
92 self.agent_name.clone(),
93 "Edit message － @ to include context",
94 editor::EditorMode::AutoHeight {
95 min_lines: 1,
96 max_lines: None,
97 },
98 window,
99 cx,
100 );
101 if !has_id {
102 editor.set_read_only(true, cx);
103 }
104 editor.set_message(chunks, window, cx);
105 editor
106 });
107 cx.subscribe(&message_editor, move |_, editor, event, cx| {
108 cx.emit(EntryViewEvent {
109 entry_index: index,
110 view_event: ViewEvent::MessageEditorEvent(editor, *event),
111 })
112 })
113 .detach();
114 self.set_entry(index, Entry::UserMessage(message_editor));
115 }
116 }
117 AgentThreadEntry::ToolCall(tool_call) => {
118 let id = tool_call.id.clone();
119 let terminals = tool_call.terminals().cloned().collect::<Vec<_>>();
120 let diffs = tool_call.diffs().cloned().collect::<Vec<_>>();
121
122 let views = if let Some(Entry::Content(views)) = self.entries.get_mut(index) {
123 views
124 } else {
125 self.set_entry(index, Entry::empty());
126 let Some(Entry::Content(views)) = self.entries.get_mut(index) else {
127 unreachable!()
128 };
129 views
130 };
131
132 let is_tool_call_completed =
133 matches!(tool_call.status, acp_thread::ToolCallStatus::Completed);
134
135 for terminal in terminals {
136 match views.entry(terminal.entity_id()) {
137 collections::hash_map::Entry::Vacant(entry) => {
138 let element = create_terminal(
139 self.workspace.clone(),
140 self.project.clone(),
141 terminal.clone(),
142 window,
143 cx,
144 )
145 .into_any();
146 cx.emit(EntryViewEvent {
147 entry_index: index,
148 view_event: ViewEvent::NewTerminal(id.clone()),
149 });
150 entry.insert(element);
151 }
152 collections::hash_map::Entry::Occupied(_entry) => {
153 if is_tool_call_completed && terminal.read(cx).output().is_none() {
154 cx.emit(EntryViewEvent {
155 entry_index: index,
156 view_event: ViewEvent::TerminalMovedToBackground(id.clone()),
157 });
158 }
159 }
160 }
161 }
162
163 for diff in diffs {
164 views.entry(diff.entity_id()).or_insert_with(|| {
165 let element = create_editor_diff(diff.clone(), window, cx).into_any();
166 cx.emit(EntryViewEvent {
167 entry_index: index,
168 view_event: ViewEvent::NewDiff(id.clone()),
169 });
170 element
171 });
172 }
173 }
174 AgentThreadEntry::AssistantMessage(message) => {
175 let entry = if let Some(Entry::AssistantMessage(entry)) =
176 self.entries.get_mut(index)
177 {
178 entry
179 } else {
180 self.set_entry(
181 index,
182 Entry::AssistantMessage(AssistantMessageEntry::default()),
183 );
184 let Some(Entry::AssistantMessage(entry)) = self.entries.get_mut(index) else {
185 unreachable!()
186 };
187 entry
188 };
189 entry.sync(message);
190 }
191 };
192 }
193
194 fn set_entry(&mut self, index: usize, entry: Entry) {
195 if index == self.entries.len() {
196 self.entries.push(entry);
197 } else {
198 self.entries[index] = entry;
199 }
200 }
201
202 pub fn remove(&mut self, range: Range<usize>) {
203 self.entries.drain(range);
204 }
205
206 pub fn agent_ui_font_size_changed(&mut self, cx: &mut App) {
207 for entry in self.entries.iter() {
208 match entry {
209 Entry::UserMessage { .. } | Entry::AssistantMessage { .. } => {}
210 Entry::Content(response_views) => {
211 for view in response_views.values() {
212 if let Ok(diff_editor) = view.clone().downcast::<Editor>() {
213 diff_editor.update(cx, |diff_editor, cx| {
214 diff_editor.set_text_style_refinement(
215 diff_editor_text_style_refinement(cx),
216 );
217 cx.notify();
218 })
219 }
220 }
221 }
222 }
223 }
224 }
225}
226
227impl EventEmitter<EntryViewEvent> for EntryViewState {}
228
229pub struct EntryViewEvent {
230 pub entry_index: usize,
231 pub view_event: ViewEvent,
232}
233
234pub enum ViewEvent {
235 NewDiff(ToolCallId),
236 NewTerminal(ToolCallId),
237 TerminalMovedToBackground(ToolCallId),
238 MessageEditorEvent(Entity<MessageEditor>, MessageEditorEvent),
239}
240
241#[derive(Default, Debug)]
242pub struct AssistantMessageEntry {
243 scroll_handles_by_chunk_index: HashMap<usize, ScrollHandle>,
244}
245
246impl AssistantMessageEntry {
247 pub fn scroll_handle_for_chunk(&self, ix: usize) -> Option<ScrollHandle> {
248 self.scroll_handles_by_chunk_index.get(&ix).cloned()
249 }
250
251 pub fn sync(&mut self, message: &acp_thread::AssistantMessage) {
252 if let Some(acp_thread::AssistantMessageChunk::Thought { .. }) = message.chunks.last() {
253 let ix = message.chunks.len() - 1;
254 let handle = self.scroll_handles_by_chunk_index.entry(ix).or_default();
255 handle.scroll_to_bottom();
256 }
257 }
258}
259
260#[derive(Debug)]
261pub enum Entry {
262 UserMessage(Entity<MessageEditor>),
263 AssistantMessage(AssistantMessageEntry),
264 Content(HashMap<EntityId, AnyEntity>),
265}
266
267impl Entry {
268 pub fn focus_handle(&self, cx: &App) -> Option<FocusHandle> {
269 match self {
270 Self::UserMessage(editor) => Some(editor.read(cx).focus_handle(cx)),
271 Self::AssistantMessage(_) | Self::Content(_) => None,
272 }
273 }
274
275 pub const fn message_editor(&self) -> Option<&Entity<MessageEditor>> {
276 match self {
277 Self::UserMessage(editor) => Some(editor),
278 Self::AssistantMessage(_) | Self::Content(_) => None,
279 }
280 }
281
282 pub fn editor_for_diff(&self, diff: &Entity<acp_thread::Diff>) -> Option<Entity<Editor>> {
283 self.content_map()?
284 .get(&diff.entity_id())
285 .cloned()
286 .map(|entity| entity.downcast::<Editor>().unwrap())
287 }
288
289 pub fn terminal(
290 &self,
291 terminal: &Entity<acp_thread::Terminal>,
292 ) -> Option<Entity<TerminalView>> {
293 self.content_map()?
294 .get(&terminal.entity_id())
295 .cloned()
296 .map(|entity| entity.downcast::<TerminalView>().unwrap())
297 }
298
299 pub fn scroll_handle_for_assistant_message_chunk(
300 &self,
301 chunk_ix: usize,
302 ) -> Option<ScrollHandle> {
303 match self {
304 Self::AssistantMessage(message) => message.scroll_handle_for_chunk(chunk_ix),
305 Self::UserMessage(_) | Self::Content(_) => None,
306 }
307 }
308
309 const fn content_map(&self) -> Option<&HashMap<EntityId, AnyEntity>> {
310 match self {
311 Self::Content(map) => Some(map),
312 _ => None,
313 }
314 }
315
316 fn empty() -> Self {
317 Self::Content(HashMap::default())
318 }
319
320 #[cfg(test)]
321 pub fn has_content(&self) -> bool {
322 match self {
323 Self::Content(map) => !map.is_empty(),
324 Self::UserMessage(_) | Self::AssistantMessage(_) => false,
325 }
326 }
327}
328
329fn create_terminal(
330 workspace: WeakEntity<Workspace>,
331 project: Entity<Project>,
332 terminal: Entity<acp_thread::Terminal>,
333 window: &mut Window,
334 cx: &mut App,
335) -> Entity<TerminalView> {
336 cx.new(|cx| {
337 let mut view = TerminalView::new(
338 terminal.read(cx).inner().clone(),
339 workspace.clone(),
340 None,
341 project.downgrade(),
342 window,
343 cx,
344 );
345 view.set_embedded_mode(Some(1000), cx);
346 view
347 })
348}
349
350fn create_editor_diff(
351 diff: Entity<acp_thread::Diff>,
352 window: &mut Window,
353 cx: &mut App,
354) -> Entity<Editor> {
355 cx.new(|cx| {
356 let mut editor = Editor::new(
357 EditorMode::Full {
358 scale_ui_elements_with_buffer_font_size: false,
359 show_active_line_background: false,
360 sized_by_content: true,
361 },
362 diff.read(cx).multibuffer().clone(),
363 None,
364 window,
365 cx,
366 );
367 editor.set_show_gutter(false, cx);
368 editor.disable_inline_diagnostics();
369 editor.disable_expand_excerpt_buttons(cx);
370 editor.set_show_vertical_scrollbar(false, cx);
371 editor.set_minimap_visibility(MinimapVisibility::Disabled, window, cx);
372 editor.set_soft_wrap_mode(SoftWrap::None, cx);
373 editor.scroll_manager.set_forbid_vertical_scroll(true);
374 editor.set_show_indent_guides(false, cx);
375 editor.set_read_only(true);
376 editor.set_show_breakpoints(false, cx);
377 editor.set_show_code_actions(false, cx);
378 editor.set_show_git_diff_gutter(false, cx);
379 editor.set_expand_all_diff_hunks(cx);
380 editor.set_text_style_refinement(diff_editor_text_style_refinement(cx));
381 editor
382 })
383}
384
385fn diff_editor_text_style_refinement(cx: &mut App) -> TextStyleRefinement {
386 TextStyleRefinement {
387 font_size: Some(
388 TextSize::Small
389 .rems(cx)
390 .to_pixels(ThemeSettings::get_global(cx).agent_ui_font_size(cx))
391 .into(),
392 ),
393 ..Default::default()
394 }
395}
396
397#[cfg(test)]
398mod tests {
399 use std::{path::Path, rc::Rc};
400
401 use acp_thread::{AgentConnection, StubAgentConnection};
402 use agent::HistoryStore;
403 use agent_client_protocol as acp;
404 use agent_settings::AgentSettings;
405 use assistant_context::ContextStore;
406 use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
407 use editor::{EditorSettings, RowInfo};
408 use fs::FakeFs;
409 use gpui::{AppContext as _, SemanticVersion, TestAppContext};
410
411 use crate::acp::entry_view_state::EntryViewState;
412 use multi_buffer::MultiBufferRow;
413 use pretty_assertions::assert_matches;
414 use project::Project;
415 use serde_json::json;
416 use settings::{Settings as _, SettingsStore};
417 use util::path;
418 use workspace::Workspace;
419
420 #[gpui::test]
421 async fn test_diff_sync(cx: &mut TestAppContext) {
422 init_test(cx);
423 let fs = FakeFs::new(cx.executor());
424 fs.insert_tree(
425 "/project",
426 json!({
427 "hello.txt": "hi world"
428 }),
429 )
430 .await;
431 let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
432
433 let (workspace, cx) =
434 cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
435
436 let tool_call = acp::ToolCall {
437 id: acp::ToolCallId("tool".into()),
438 title: "Tool call".into(),
439 kind: acp::ToolKind::Other,
440 status: acp::ToolCallStatus::InProgress,
441 content: vec![acp::ToolCallContent::Diff {
442 diff: acp::Diff {
443 path: "/project/hello.txt".into(),
444 old_text: Some("hi world".into()),
445 new_text: "hello world".into(),
446 meta: None,
447 },
448 }],
449 locations: vec![],
450 raw_input: None,
451 raw_output: None,
452 meta: None,
453 };
454 let connection = Rc::new(StubAgentConnection::new());
455 let thread = cx
456 .update(|_, cx| {
457 connection
458 .clone()
459 .new_thread(project.clone(), Path::new(path!("/project")), cx)
460 })
461 .await
462 .unwrap();
463 let session_id = thread.update(cx, |thread, _| thread.session_id().clone());
464
465 cx.update(|_, cx| {
466 connection.send_update(session_id, acp::SessionUpdate::ToolCall(tool_call), cx)
467 });
468
469 let context_store = cx.new(|cx| ContextStore::fake(project.clone(), cx));
470 let history_store = cx.new(|cx| HistoryStore::new(context_store, cx));
471
472 let view_state = cx.new(|_cx| {
473 EntryViewState::new(
474 workspace.downgrade(),
475 project.clone(),
476 history_store,
477 None,
478 Default::default(),
479 Default::default(),
480 "Test Agent".into(),
481 )
482 });
483
484 view_state.update_in(cx, |view_state, window, cx| {
485 view_state.sync_entry(0, &thread, window, cx)
486 });
487
488 let diff = thread.read_with(cx, |thread, _cx| {
489 thread
490 .entries()
491 .get(0)
492 .unwrap()
493 .diffs()
494 .next()
495 .unwrap()
496 .clone()
497 });
498
499 cx.run_until_parked();
500
501 let diff_editor = view_state.read_with(cx, |view_state, _cx| {
502 view_state.entry(0).unwrap().editor_for_diff(&diff).unwrap()
503 });
504 assert_eq!(
505 diff_editor.read_with(cx, |editor, cx| editor.text(cx)),
506 "hi world\nhello world"
507 );
508 let row_infos = diff_editor.read_with(cx, |editor, cx| {
509 let multibuffer = editor.buffer().read(cx);
510 multibuffer
511 .snapshot(cx)
512 .row_infos(MultiBufferRow(0))
513 .collect::<Vec<_>>()
514 });
515 assert_matches!(
516 row_infos.as_slice(),
517 [
518 RowInfo {
519 multibuffer_row: Some(MultiBufferRow(0)),
520 diff_status: Some(DiffHunkStatus {
521 kind: DiffHunkStatusKind::Deleted,
522 ..
523 }),
524 ..
525 },
526 RowInfo {
527 multibuffer_row: Some(MultiBufferRow(1)),
528 diff_status: Some(DiffHunkStatus {
529 kind: DiffHunkStatusKind::Added,
530 ..
531 }),
532 ..
533 }
534 ]
535 );
536 }
537
538 fn init_test(cx: &mut TestAppContext) {
539 cx.update(|cx| {
540 let settings_store = SettingsStore::test(cx);
541 cx.set_global(settings_store);
542 language::init(cx);
543 Project::init_settings(cx);
544 AgentSettings::register(cx);
545 workspace::init_settings(cx);
546 theme::init(theme::LoadThemes::JustBase, cx);
547 release_channel::init(SemanticVersion::default(), cx);
548 EditorSettings::register(cx);
549 });
550 }
551}