1use std::ops::Range;
2
3use super::thread_history::ThreadHistory;
4use acp_thread::{AcpThread, AgentThreadEntry};
5use agent::ThreadStore;
6use agent_client_protocol::ToolCallId;
7use collections::HashMap;
8use editor::{Editor, EditorEvent, EditorMode, MinimapVisibility, SizingBehavior};
9use gpui::{
10 AnyEntity, App, AppContext as _, Entity, EntityId, EventEmitter, FocusHandle, Focusable,
11 ScrollHandle, TextStyleRefinement, WeakEntity, Window,
12};
13use language::language_settings::SoftWrap;
14use project::{AgentId, Project};
15use prompt_store::PromptStore;
16use rope::Point;
17use settings::Settings as _;
18use terminal_view::TerminalView;
19use theme_settings::ThemeSettings;
20use ui::{Context, TextSize};
21use workspace::Workspace;
22
23use crate::message_editor::{MessageEditor, MessageEditorEvent, SharedSessionCapabilities};
24
25pub struct EntryViewState {
26 workspace: WeakEntity<Workspace>,
27 project: WeakEntity<Project>,
28 thread_store: Option<Entity<ThreadStore>>,
29 history: Option<WeakEntity<ThreadHistory>>,
30 prompt_store: Option<Entity<PromptStore>>,
31 entries: Vec<Entry>,
32 session_capabilities: SharedSessionCapabilities,
33 agent_id: AgentId,
34}
35
36impl EntryViewState {
37 pub fn new(
38 workspace: WeakEntity<Workspace>,
39 project: WeakEntity<Project>,
40 thread_store: Option<Entity<ThreadStore>>,
41 history: Option<WeakEntity<ThreadHistory>>,
42 prompt_store: Option<Entity<PromptStore>>,
43 session_capabilities: SharedSessionCapabilities,
44 agent_id: AgentId,
45 ) -> Self {
46 Self {
47 workspace,
48 project,
49 thread_store,
50 history,
51 prompt_store,
52 entries: Vec::new(),
53 session_capabilities,
54 agent_id,
55 }
56 }
57
58 pub fn entry(&self, index: usize) -> Option<&Entry> {
59 self.entries.get(index)
60 }
61
62 pub fn sync_entry(
63 &mut self,
64 index: usize,
65 thread: &Entity<AcpThread>,
66 window: &mut Window,
67 cx: &mut Context<Self>,
68 ) {
69 let Some(thread_entry) = thread.read(cx).entries().get(index) else {
70 return;
71 };
72
73 match thread_entry {
74 AgentThreadEntry::UserMessage(message) => {
75 let can_rewind = thread.read(cx).supports_truncate(cx);
76 let has_id = message.id.is_some();
77 let is_subagent = thread.read(cx).parent_session_id().is_some();
78 let chunks = message.chunks.clone();
79 if let Some(Entry::UserMessage(editor)) = self.entries.get_mut(index) {
80 if !editor.focus_handle(cx).is_focused(window) {
81 // Only update if we are not editing.
82 // If we are, cancelling the edit will set the message to the newest content.
83 editor.update(cx, |editor, cx| {
84 editor.set_message(chunks, window, cx);
85 });
86 }
87 } else {
88 let message_editor = cx.new(|cx| {
89 let mut editor = MessageEditor::new(
90 self.workspace.clone(),
91 self.project.clone(),
92 self.thread_store.clone(),
93 self.history.clone(),
94 self.prompt_store.clone(),
95 self.session_capabilities.clone(),
96 self.agent_id.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 !can_rewind || !has_id || is_subagent {
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.clone()),
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::ToolCall(tool_call)) = self.entries.get_mut(index) {
127 &mut tool_call.content
128 } else {
129 self.set_entry(
130 index,
131 Entry::ToolCall(ToolCallEntry {
132 content: HashMap::default(),
133 }),
134 );
135 let Some(Entry::ToolCall(tool_call)) = self.entries.get_mut(index) else {
136 unreachable!()
137 };
138 &mut tool_call.content
139 };
140
141 let is_tool_call_completed =
142 matches!(tool_call.status, acp_thread::ToolCallStatus::Completed);
143
144 for terminal in terminals {
145 match views.entry(terminal.entity_id()) {
146 collections::hash_map::Entry::Vacant(entry) => {
147 let element = create_terminal(
148 self.workspace.clone(),
149 self.project.clone(),
150 terminal.clone(),
151 window,
152 cx,
153 )
154 .into_any();
155 cx.emit(EntryViewEvent {
156 entry_index: index,
157 view_event: ViewEvent::NewTerminal(id.clone()),
158 });
159 entry.insert(element);
160 }
161 collections::hash_map::Entry::Occupied(_entry) => {
162 if is_tool_call_completed && terminal.read(cx).output().is_none() {
163 cx.emit(EntryViewEvent {
164 entry_index: index,
165 view_event: ViewEvent::TerminalMovedToBackground(id.clone()),
166 });
167 }
168 }
169 }
170 }
171
172 for diff in diffs {
173 views.entry(diff.entity_id()).or_insert_with(|| {
174 let editor = create_editor_diff(diff.clone(), window, cx);
175 cx.subscribe(&editor, {
176 let diff = diff.clone();
177 let entry_index = index;
178 move |_this, _editor, event: &EditorEvent, cx| {
179 if let EditorEvent::OpenExcerptsRequested {
180 selections_by_buffer,
181 split,
182 } = event
183 {
184 let multibuffer = diff.read(cx).multibuffer();
185 if let Some((buffer_id, (ranges, _))) =
186 selections_by_buffer.iter().next()
187 {
188 if let Some(buffer) =
189 multibuffer.read(cx).buffer(*buffer_id)
190 {
191 if let Some(range) = ranges.first() {
192 let point =
193 buffer.read(cx).offset_to_point(range.start.0);
194 if let Some(path) = diff.read(cx).file_path(cx) {
195 cx.emit(EntryViewEvent {
196 entry_index,
197 view_event: ViewEvent::OpenDiffLocation {
198 path,
199 position: point,
200 split: *split,
201 },
202 });
203 }
204 }
205 }
206 }
207 }
208 }
209 })
210 .detach();
211 cx.emit(EntryViewEvent {
212 entry_index: index,
213 view_event: ViewEvent::NewDiff(id.clone()),
214 });
215 editor.into_any()
216 });
217 }
218 }
219 AgentThreadEntry::AssistantMessage(message) => {
220 let entry = if let Some(Entry::AssistantMessage(entry)) =
221 self.entries.get_mut(index)
222 {
223 entry
224 } else {
225 self.set_entry(
226 index,
227 Entry::AssistantMessage(AssistantMessageEntry {
228 scroll_handles_by_chunk_index: HashMap::default(),
229 focus_handle: cx.focus_handle(),
230 }),
231 );
232 let Some(Entry::AssistantMessage(entry)) = self.entries.get_mut(index) else {
233 unreachable!()
234 };
235 entry
236 };
237 entry.sync(message);
238 }
239 AgentThreadEntry::CompletedPlan(_) => {
240 if !matches!(self.entries.get(index), Some(Entry::CompletedPlan)) {
241 self.set_entry(index, Entry::CompletedPlan);
242 }
243 }
244 };
245 }
246
247 fn set_entry(&mut self, index: usize, entry: Entry) {
248 if index == self.entries.len() {
249 self.entries.push(entry);
250 } else {
251 self.entries[index] = entry;
252 }
253 }
254
255 pub fn remove(&mut self, range: Range<usize>) {
256 self.entries.drain(range);
257 }
258
259 pub fn agent_ui_font_size_changed(&mut self, cx: &mut App) {
260 for entry in self.entries.iter() {
261 match entry {
262 Entry::UserMessage { .. }
263 | Entry::AssistantMessage { .. }
264 | Entry::CompletedPlan => {}
265 Entry::ToolCall(ToolCallEntry { content }) => {
266 for view in content.values() {
267 if let Ok(diff_editor) = view.clone().downcast::<Editor>() {
268 diff_editor.update(cx, |diff_editor, cx| {
269 diff_editor.set_text_style_refinement(
270 diff_editor_text_style_refinement(cx),
271 );
272 cx.notify();
273 })
274 }
275 }
276 }
277 }
278 }
279 }
280}
281
282impl EventEmitter<EntryViewEvent> for EntryViewState {}
283
284pub struct EntryViewEvent {
285 pub entry_index: usize,
286 pub view_event: ViewEvent,
287}
288
289pub enum ViewEvent {
290 NewDiff(ToolCallId),
291 NewTerminal(ToolCallId),
292 TerminalMovedToBackground(ToolCallId),
293 MessageEditorEvent(Entity<MessageEditor>, MessageEditorEvent),
294 OpenDiffLocation {
295 path: String,
296 position: Point,
297 split: bool,
298 },
299}
300
301#[derive(Debug)]
302pub struct AssistantMessageEntry {
303 scroll_handles_by_chunk_index: HashMap<usize, ScrollHandle>,
304 focus_handle: FocusHandle,
305}
306
307impl AssistantMessageEntry {
308 pub fn scroll_handle_for_chunk(&self, ix: usize) -> Option<ScrollHandle> {
309 self.scroll_handles_by_chunk_index.get(&ix).cloned()
310 }
311
312 pub fn sync(&mut self, message: &acp_thread::AssistantMessage) {
313 if let Some(acp_thread::AssistantMessageChunk::Thought { .. }) = message.chunks.last() {
314 let ix = message.chunks.len() - 1;
315 let handle = self.scroll_handles_by_chunk_index.entry(ix).or_default();
316 handle.scroll_to_bottom();
317 }
318 }
319}
320
321#[derive(Debug)]
322pub struct ToolCallEntry {
323 content: HashMap<EntityId, AnyEntity>,
324}
325
326#[derive(Debug)]
327pub enum Entry {
328 UserMessage(Entity<MessageEditor>),
329 AssistantMessage(AssistantMessageEntry),
330 ToolCall(ToolCallEntry),
331 CompletedPlan,
332}
333
334impl Entry {
335 pub fn focus_handle(&self, cx: &App) -> Option<FocusHandle> {
336 match self {
337 Self::UserMessage(editor) => Some(editor.read(cx).focus_handle(cx)),
338 Self::AssistantMessage(message) => Some(message.focus_handle.clone()),
339 Self::ToolCall(_) | Self::CompletedPlan => None,
340 }
341 }
342
343 pub fn message_editor(&self) -> Option<&Entity<MessageEditor>> {
344 match self {
345 Self::UserMessage(editor) => Some(editor),
346 Self::AssistantMessage(_) | Self::ToolCall(_) | Self::CompletedPlan => None,
347 }
348 }
349
350 pub fn editor_for_diff(&self, diff: &Entity<acp_thread::Diff>) -> Option<Entity<Editor>> {
351 self.content_map()?
352 .get(&diff.entity_id())
353 .cloned()
354 .map(|entity| entity.downcast::<Editor>().unwrap())
355 }
356
357 pub fn terminal(
358 &self,
359 terminal: &Entity<acp_thread::Terminal>,
360 ) -> Option<Entity<TerminalView>> {
361 self.content_map()?
362 .get(&terminal.entity_id())
363 .cloned()
364 .map(|entity| entity.downcast::<TerminalView>().unwrap())
365 }
366
367 pub fn scroll_handle_for_assistant_message_chunk(
368 &self,
369 chunk_ix: usize,
370 ) -> Option<ScrollHandle> {
371 match self {
372 Self::AssistantMessage(message) => message.scroll_handle_for_chunk(chunk_ix),
373 Self::UserMessage(_) | Self::ToolCall(_) | Self::CompletedPlan => None,
374 }
375 }
376
377 fn content_map(&self) -> Option<&HashMap<EntityId, AnyEntity>> {
378 match self {
379 Self::ToolCall(ToolCallEntry { content }) => Some(content),
380 _ => None,
381 }
382 }
383
384 #[cfg(test)]
385 pub fn has_content(&self) -> bool {
386 match self {
387 Self::ToolCall(ToolCallEntry { content }) => !content.is_empty(),
388 Self::UserMessage(_) | Self::AssistantMessage(_) | Self::CompletedPlan => false,
389 }
390 }
391}
392
393fn create_terminal(
394 workspace: WeakEntity<Workspace>,
395 project: WeakEntity<Project>,
396 terminal: Entity<acp_thread::Terminal>,
397 window: &mut Window,
398 cx: &mut App,
399) -> Entity<TerminalView> {
400 cx.new(|cx| {
401 let mut view = TerminalView::new(
402 terminal.read(cx).inner().clone(),
403 workspace,
404 None,
405 project,
406 window,
407 cx,
408 );
409 view.set_embedded_mode(Some(1000), cx);
410 view
411 })
412}
413
414fn create_editor_diff(
415 diff: Entity<acp_thread::Diff>,
416 window: &mut Window,
417 cx: &mut App,
418) -> Entity<Editor> {
419 cx.new(|cx| {
420 let mut editor = Editor::new(
421 EditorMode::Full {
422 scale_ui_elements_with_buffer_font_size: false,
423 show_active_line_background: false,
424 sizing_behavior: SizingBehavior::SizeByContent,
425 },
426 diff.read(cx).multibuffer().clone(),
427 None,
428 window,
429 cx,
430 );
431 editor.set_show_gutter(false, cx);
432 editor.disable_inline_diagnostics();
433 editor.disable_expand_excerpt_buttons(cx);
434 editor.set_show_vertical_scrollbar(false, cx);
435 editor.set_minimap_visibility(MinimapVisibility::Disabled, window, cx);
436 editor.set_soft_wrap_mode(SoftWrap::None, cx);
437 editor.scroll_manager.set_forbid_vertical_scroll(true);
438 editor.set_show_indent_guides(false, cx);
439 editor.set_read_only(true);
440 editor.set_delegate_open_excerpts(true);
441 editor.set_show_breakpoints(false, cx);
442 editor.set_show_code_actions(false, cx);
443 editor.set_show_git_diff_gutter(false, cx);
444 editor.set_expand_all_diff_hunks(cx);
445 editor.set_text_style_refinement(diff_editor_text_style_refinement(cx));
446 editor
447 })
448}
449
450fn diff_editor_text_style_refinement(cx: &mut App) -> TextStyleRefinement {
451 TextStyleRefinement {
452 font_size: Some(
453 TextSize::Small
454 .rems(cx)
455 .to_pixels(ThemeSettings::get_global(cx).agent_ui_font_size(cx))
456 .into(),
457 ),
458 ..Default::default()
459 }
460}
461
462#[cfg(test)]
463mod tests {
464 use std::path::Path;
465 use std::rc::Rc;
466 use std::sync::Arc;
467
468 use acp_thread::{AgentConnection, StubAgentConnection};
469 use agent_client_protocol as acp;
470 use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
471 use editor::RowInfo;
472 use fs::FakeFs;
473 use gpui::{AppContext as _, TestAppContext};
474 use parking_lot::RwLock;
475
476 use crate::entry_view_state::EntryViewState;
477 use crate::message_editor::SessionCapabilities;
478 use multi_buffer::MultiBufferRow;
479 use pretty_assertions::assert_matches;
480 use project::Project;
481 use serde_json::json;
482 use settings::SettingsStore;
483 use util::path;
484 use workspace::{MultiWorkspace, PathList};
485
486 #[gpui::test]
487 async fn test_diff_sync(cx: &mut TestAppContext) {
488 init_test(cx);
489 let fs = FakeFs::new(cx.executor());
490 fs.insert_tree(
491 "/project",
492 json!({
493 "hello.txt": "hi world"
494 }),
495 )
496 .await;
497 let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
498
499 let (multi_workspace, cx) =
500 cx.add_window_view(|window, cx| MultiWorkspace::test_new(project.clone(), window, cx));
501 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
502
503 let tool_call = acp::ToolCall::new("tool", "Tool call")
504 .status(acp::ToolCallStatus::InProgress)
505 .content(vec![acp::ToolCallContent::Diff(
506 acp::Diff::new("/project/hello.txt", "hello world").old_text("hi world"),
507 )]);
508 let connection = Rc::new(StubAgentConnection::new());
509 let thread = cx
510 .update(|_, cx| {
511 connection.clone().new_session(
512 project.clone(),
513 PathList::new(&[Path::new(path!("/project"))]),
514 cx,
515 )
516 })
517 .await
518 .unwrap();
519 let session_id = thread.update(cx, |thread, _| thread.session_id().clone());
520
521 cx.update(|_, cx| {
522 connection.send_update(session_id, acp::SessionUpdate::ToolCall(tool_call), cx)
523 });
524
525 let thread_store = None;
526 let history: Option<gpui::WeakEntity<crate::ThreadHistory>> = None;
527
528 let view_state = cx.new(|_cx| {
529 EntryViewState::new(
530 workspace.downgrade(),
531 project.downgrade(),
532 thread_store,
533 history,
534 None,
535 Arc::new(RwLock::new(SessionCapabilities::default())),
536 "Test Agent".into(),
537 )
538 });
539
540 view_state.update_in(cx, |view_state, window, cx| {
541 view_state.sync_entry(0, &thread, window, cx)
542 });
543
544 let diff = thread.read_with(cx, |thread, _| {
545 thread
546 .entries()
547 .get(0)
548 .unwrap()
549 .diffs()
550 .next()
551 .unwrap()
552 .clone()
553 });
554
555 cx.run_until_parked();
556
557 let diff_editor = view_state.read_with(cx, |view_state, _cx| {
558 view_state.entry(0).unwrap().editor_for_diff(&diff).unwrap()
559 });
560 assert_eq!(
561 diff_editor.read_with(cx, |editor, cx| editor.text(cx)),
562 "hi world\nhello world"
563 );
564 let row_infos = diff_editor.read_with(cx, |editor, cx| {
565 let multibuffer = editor.buffer().read(cx);
566 multibuffer
567 .snapshot(cx)
568 .row_infos(MultiBufferRow(0))
569 .collect::<Vec<_>>()
570 });
571 assert_matches!(
572 row_infos.as_slice(),
573 [
574 RowInfo {
575 multibuffer_row: Some(MultiBufferRow(0)),
576 diff_status: Some(DiffHunkStatus {
577 kind: DiffHunkStatusKind::Deleted,
578 ..
579 }),
580 ..
581 },
582 RowInfo {
583 multibuffer_row: Some(MultiBufferRow(1)),
584 diff_status: Some(DiffHunkStatus {
585 kind: DiffHunkStatusKind::Added,
586 ..
587 }),
588 ..
589 }
590 ]
591 );
592 }
593
594 fn init_test(cx: &mut TestAppContext) {
595 cx.update(|cx| {
596 let settings_store = SettingsStore::test(cx);
597 cx.set_global(settings_store);
598 theme_settings::init(theme::LoadThemes::JustBase, cx);
599 release_channel::init(semver::Version::new(0, 0, 0), cx);
600 });
601 }
602}