1use std::{cell::Cell, ops::Range, rc::Rc};
2
3use acp_thread::{AcpThread, AgentThreadEntry};
4use agent_client_protocol::{PromptCapabilities, ToolCallId};
5use agent2::HistoryStore;
6use collections::HashMap;
7use editor::{Editor, EditorMode, MinimapVisibility};
8use gpui::{
9 AnyEntity, App, AppContext as _, Entity, EntityId, EventEmitter, FocusHandle, Focusable,
10 ScrollHandle, 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 prevent_slash_commands: bool,
30 prompt_capabilities: Rc<Cell<PromptCapabilities>>,
31}
32
33impl EntryViewState {
34 pub fn new(
35 workspace: WeakEntity<Workspace>,
36 project: Entity<Project>,
37 history_store: Entity<HistoryStore>,
38 prompt_store: Option<Entity<PromptStore>>,
39 prompt_capabilities: Rc<Cell<PromptCapabilities>>,
40 prevent_slash_commands: bool,
41 ) -> Self {
42 Self {
43 workspace,
44 project,
45 history_store,
46 prompt_store,
47 entries: Vec::new(),
48 prevent_slash_commands,
49 prompt_capabilities,
50 }
51 }
52
53 pub fn entry(&self, index: usize) -> Option<&Entry> {
54 self.entries.get(index)
55 }
56
57 pub fn sync_entry(
58 &mut self,
59 index: usize,
60 thread: &Entity<AcpThread>,
61 window: &mut Window,
62 cx: &mut Context<Self>,
63 ) {
64 let Some(thread_entry) = thread.read(cx).entries().get(index) else {
65 return;
66 };
67
68 match thread_entry {
69 AgentThreadEntry::UserMessage(message) => {
70 let has_id = message.id.is_some();
71 let chunks = message.chunks.clone();
72 if let Some(Entry::UserMessage(editor)) = self.entries.get_mut(index) {
73 if !editor.focus_handle(cx).is_focused(window) {
74 // Only update if we are not editing.
75 // If we are, cancelling the edit will set the message to the newest content.
76 editor.update(cx, |editor, cx| {
77 editor.set_message(chunks, window, cx);
78 });
79 }
80 } else {
81 let message_editor = cx.new(|cx| {
82 let mut editor = MessageEditor::new(
83 self.workspace.clone(),
84 self.project.clone(),
85 self.history_store.clone(),
86 self.prompt_store.clone(),
87 self.prompt_capabilities.clone(),
88 "Edit message － @ to include context",
89 self.prevent_slash_commands,
90 editor::EditorMode::AutoHeight {
91 min_lines: 1,
92 max_lines: None,
93 },
94 window,
95 cx,
96 );
97 if !has_id {
98 editor.set_read_only(true, cx);
99 }
100 editor.set_message(chunks, window, cx);
101 editor
102 });
103 cx.subscribe(&message_editor, move |_, editor, event, cx| {
104 cx.emit(EntryViewEvent {
105 entry_index: index,
106 view_event: ViewEvent::MessageEditorEvent(editor, *event),
107 })
108 })
109 .detach();
110 self.set_entry(index, Entry::UserMessage(message_editor));
111 }
112 }
113 AgentThreadEntry::ToolCall(tool_call) => {
114 let id = tool_call.id.clone();
115 let terminals = tool_call.terminals().cloned().collect::<Vec<_>>();
116 let diffs = tool_call.diffs().cloned().collect::<Vec<_>>();
117
118 let views = if let Some(Entry::Content(views)) = self.entries.get_mut(index) {
119 views
120 } else {
121 self.set_entry(index, Entry::empty());
122 let Some(Entry::Content(views)) = self.entries.get_mut(index) else {
123 unreachable!()
124 };
125 views
126 };
127
128 for terminal in terminals {
129 views.entry(terminal.entity_id()).or_insert_with(|| {
130 let element = create_terminal(
131 self.workspace.clone(),
132 self.project.clone(),
133 terminal.clone(),
134 window,
135 cx,
136 )
137 .into_any();
138 cx.emit(EntryViewEvent {
139 entry_index: index,
140 view_event: ViewEvent::NewTerminal(id.clone()),
141 });
142 element
143 });
144 }
145
146 for diff in diffs {
147 views.entry(diff.entity_id()).or_insert_with(|| {
148 let element = create_editor_diff(diff.clone(), window, cx).into_any();
149 cx.emit(EntryViewEvent {
150 entry_index: index,
151 view_event: ViewEvent::NewDiff(id.clone()),
152 });
153 element
154 });
155 }
156 }
157 AgentThreadEntry::AssistantMessage(message) => {
158 let entry = if let Some(Entry::AssistantMessage(entry)) =
159 self.entries.get_mut(index)
160 {
161 entry
162 } else {
163 self.set_entry(
164 index,
165 Entry::AssistantMessage(AssistantMessageEntry::default()),
166 );
167 let Some(Entry::AssistantMessage(entry)) = self.entries.get_mut(index) else {
168 unreachable!()
169 };
170 entry
171 };
172 entry.sync(message);
173 }
174 };
175 }
176
177 fn set_entry(&mut self, index: usize, entry: Entry) {
178 if index == self.entries.len() {
179 self.entries.push(entry);
180 } else {
181 self.entries[index] = entry;
182 }
183 }
184
185 pub fn remove(&mut self, range: Range<usize>) {
186 self.entries.drain(range);
187 }
188
189 pub fn settings_changed(&mut self, cx: &mut App) {
190 for entry in self.entries.iter() {
191 match entry {
192 Entry::UserMessage { .. } | Entry::AssistantMessage { .. } => {}
193 Entry::Content(response_views) => {
194 for view in response_views.values() {
195 if let Ok(diff_editor) = view.clone().downcast::<Editor>() {
196 diff_editor.update(cx, |diff_editor, cx| {
197 diff_editor.set_text_style_refinement(
198 diff_editor_text_style_refinement(cx),
199 );
200 cx.notify();
201 })
202 }
203 }
204 }
205 }
206 }
207 }
208}
209
210impl EventEmitter<EntryViewEvent> for EntryViewState {}
211
212pub struct EntryViewEvent {
213 pub entry_index: usize,
214 pub view_event: ViewEvent,
215}
216
217pub enum ViewEvent {
218 NewDiff(ToolCallId),
219 NewTerminal(ToolCallId),
220 MessageEditorEvent(Entity<MessageEditor>, MessageEditorEvent),
221}
222
223#[derive(Default, Debug)]
224pub struct AssistantMessageEntry {
225 scroll_handles_by_chunk_index: HashMap<usize, ScrollHandle>,
226}
227
228impl AssistantMessageEntry {
229 pub fn scroll_handle_for_chunk(&self, ix: usize) -> Option<ScrollHandle> {
230 self.scroll_handles_by_chunk_index.get(&ix).cloned()
231 }
232
233 pub fn sync(&mut self, message: &acp_thread::AssistantMessage) {
234 if let Some(acp_thread::AssistantMessageChunk::Thought { .. }) = message.chunks.last() {
235 let ix = message.chunks.len() - 1;
236 let handle = self.scroll_handles_by_chunk_index.entry(ix).or_default();
237 handle.scroll_to_bottom();
238 }
239 }
240}
241
242#[derive(Debug)]
243pub enum Entry {
244 UserMessage(Entity<MessageEditor>),
245 AssistantMessage(AssistantMessageEntry),
246 Content(HashMap<EntityId, AnyEntity>),
247}
248
249impl Entry {
250 pub fn focus_handle(&self, cx: &App) -> Option<FocusHandle> {
251 match self {
252 Self::UserMessage(editor) => Some(editor.read(cx).focus_handle(cx)),
253 Self::AssistantMessage(_) | Self::Content(_) => None,
254 }
255 }
256
257 pub fn message_editor(&self) -> Option<&Entity<MessageEditor>> {
258 match self {
259 Self::UserMessage(editor) => Some(editor),
260 Self::AssistantMessage(_) | Self::Content(_) => None,
261 }
262 }
263
264 pub fn editor_for_diff(&self, diff: &Entity<acp_thread::Diff>) -> Option<Entity<Editor>> {
265 self.content_map()?
266 .get(&diff.entity_id())
267 .cloned()
268 .map(|entity| entity.downcast::<Editor>().unwrap())
269 }
270
271 pub fn terminal(
272 &self,
273 terminal: &Entity<acp_thread::Terminal>,
274 ) -> Option<Entity<TerminalView>> {
275 self.content_map()?
276 .get(&terminal.entity_id())
277 .cloned()
278 .map(|entity| entity.downcast::<TerminalView>().unwrap())
279 }
280
281 pub fn scroll_handle_for_assistant_message_chunk(
282 &self,
283 chunk_ix: usize,
284 ) -> Option<ScrollHandle> {
285 match self {
286 Self::AssistantMessage(message) => message.scroll_handle_for_chunk(chunk_ix),
287 Self::UserMessage(_) | Self::Content(_) => None,
288 }
289 }
290
291 fn content_map(&self) -> Option<&HashMap<EntityId, AnyEntity>> {
292 match self {
293 Self::Content(map) => Some(map),
294 _ => None,
295 }
296 }
297
298 fn empty() -> Self {
299 Self::Content(HashMap::default())
300 }
301
302 #[cfg(test)]
303 pub fn has_content(&self) -> bool {
304 match self {
305 Self::Content(map) => !map.is_empty(),
306 Self::UserMessage(_) | Self::AssistantMessage(_) => false,
307 }
308 }
309}
310
311fn create_terminal(
312 workspace: WeakEntity<Workspace>,
313 project: Entity<Project>,
314 terminal: Entity<acp_thread::Terminal>,
315 window: &mut Window,
316 cx: &mut App,
317) -> Entity<TerminalView> {
318 cx.new(|cx| {
319 let mut view = TerminalView::new(
320 terminal.read(cx).inner().clone(),
321 workspace.clone(),
322 None,
323 project.downgrade(),
324 window,
325 cx,
326 );
327 view.set_embedded_mode(Some(1000), cx);
328 view
329 })
330}
331
332fn create_editor_diff(
333 diff: Entity<acp_thread::Diff>,
334 window: &mut Window,
335 cx: &mut App,
336) -> Entity<Editor> {
337 cx.new(|cx| {
338 let mut editor = Editor::new(
339 EditorMode::Full {
340 scale_ui_elements_with_buffer_font_size: false,
341 show_active_line_background: false,
342 sized_by_content: true,
343 },
344 diff.read(cx).multibuffer().clone(),
345 None,
346 window,
347 cx,
348 );
349 editor.set_show_gutter(false, cx);
350 editor.disable_inline_diagnostics();
351 editor.disable_expand_excerpt_buttons(cx);
352 editor.set_show_vertical_scrollbar(false, cx);
353 editor.set_minimap_visibility(MinimapVisibility::Disabled, window, cx);
354 editor.set_soft_wrap_mode(SoftWrap::None, cx);
355 editor.scroll_manager.set_forbid_vertical_scroll(true);
356 editor.set_show_indent_guides(false, cx);
357 editor.set_read_only(true);
358 editor.set_show_breakpoints(false, cx);
359 editor.set_show_code_actions(false, cx);
360 editor.set_show_git_diff_gutter(false, cx);
361 editor.set_expand_all_diff_hunks(cx);
362 editor.set_text_style_refinement(diff_editor_text_style_refinement(cx));
363 editor
364 })
365}
366
367fn diff_editor_text_style_refinement(cx: &mut App) -> TextStyleRefinement {
368 TextStyleRefinement {
369 font_size: Some(
370 TextSize::Small
371 .rems(cx)
372 .to_pixels(ThemeSettings::get_global(cx).agent_font_size(cx))
373 .into(),
374 ),
375 ..Default::default()
376 }
377}
378
379#[cfg(test)]
380mod tests {
381 use std::{path::Path, rc::Rc};
382
383 use acp_thread::{AgentConnection, StubAgentConnection};
384 use agent_client_protocol as acp;
385 use agent_settings::AgentSettings;
386 use agent2::HistoryStore;
387 use assistant_context::ContextStore;
388 use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
389 use editor::{EditorSettings, RowInfo};
390 use fs::FakeFs;
391 use gpui::{AppContext as _, SemanticVersion, TestAppContext};
392
393 use crate::acp::entry_view_state::EntryViewState;
394 use multi_buffer::MultiBufferRow;
395 use pretty_assertions::assert_matches;
396 use project::Project;
397 use serde_json::json;
398 use settings::{Settings as _, SettingsStore};
399 use theme::ThemeSettings;
400 use util::path;
401 use workspace::Workspace;
402
403 #[gpui::test]
404 async fn test_diff_sync(cx: &mut TestAppContext) {
405 init_test(cx);
406 let fs = FakeFs::new(cx.executor());
407 fs.insert_tree(
408 "/project",
409 json!({
410 "hello.txt": "hi world"
411 }),
412 )
413 .await;
414 let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
415
416 let (workspace, cx) =
417 cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
418
419 let tool_call = acp::ToolCall {
420 id: acp::ToolCallId("tool".into()),
421 title: "Tool call".into(),
422 kind: acp::ToolKind::Other,
423 status: acp::ToolCallStatus::InProgress,
424 content: vec![acp::ToolCallContent::Diff {
425 diff: acp::Diff {
426 path: "/project/hello.txt".into(),
427 old_text: Some("hi world".into()),
428 new_text: "hello world".into(),
429 },
430 }],
431 locations: vec![],
432 raw_input: None,
433 raw_output: None,
434 };
435 let connection = Rc::new(StubAgentConnection::new());
436 let thread = cx
437 .update(|_, cx| {
438 connection
439 .clone()
440 .new_thread(project.clone(), Path::new(path!("/project")), cx)
441 })
442 .await
443 .unwrap();
444 let session_id = thread.update(cx, |thread, _| thread.session_id().clone());
445
446 cx.update(|_, cx| {
447 connection.send_update(session_id, acp::SessionUpdate::ToolCall(tool_call), cx)
448 });
449
450 let context_store = cx.new(|cx| ContextStore::fake(project.clone(), cx));
451 let history_store = cx.new(|cx| HistoryStore::new(context_store, cx));
452
453 let view_state = cx.new(|_cx| {
454 EntryViewState::new(
455 workspace.downgrade(),
456 project.clone(),
457 history_store,
458 None,
459 Default::default(),
460 false,
461 )
462 });
463
464 view_state.update_in(cx, |view_state, window, cx| {
465 view_state.sync_entry(0, &thread, window, cx)
466 });
467
468 let diff = thread.read_with(cx, |thread, _cx| {
469 thread
470 .entries()
471 .get(0)
472 .unwrap()
473 .diffs()
474 .next()
475 .unwrap()
476 .clone()
477 });
478
479 cx.run_until_parked();
480
481 let diff_editor = view_state.read_with(cx, |view_state, _cx| {
482 view_state.entry(0).unwrap().editor_for_diff(&diff).unwrap()
483 });
484 assert_eq!(
485 diff_editor.read_with(cx, |editor, cx| editor.text(cx)),
486 "hi world\nhello world"
487 );
488 let row_infos = diff_editor.read_with(cx, |editor, cx| {
489 let multibuffer = editor.buffer().read(cx);
490 multibuffer
491 .snapshot(cx)
492 .row_infos(MultiBufferRow(0))
493 .collect::<Vec<_>>()
494 });
495 assert_matches!(
496 row_infos.as_slice(),
497 [
498 RowInfo {
499 multibuffer_row: Some(MultiBufferRow(0)),
500 diff_status: Some(DiffHunkStatus {
501 kind: DiffHunkStatusKind::Deleted,
502 ..
503 }),
504 ..
505 },
506 RowInfo {
507 multibuffer_row: Some(MultiBufferRow(1)),
508 diff_status: Some(DiffHunkStatus {
509 kind: DiffHunkStatusKind::Added,
510 ..
511 }),
512 ..
513 }
514 ]
515 );
516 }
517
518 fn init_test(cx: &mut TestAppContext) {
519 cx.update(|cx| {
520 let settings_store = SettingsStore::test(cx);
521 cx.set_global(settings_store);
522 language::init(cx);
523 Project::init_settings(cx);
524 AgentSettings::register(cx);
525 workspace::init_settings(cx);
526 ThemeSettings::register(cx);
527 release_channel::init(SemanticVersion::default(), cx);
528 EditorSettings::register(cx);
529 });
530 }
531}