1use std::{cell::RefCell, ops::Range, rc::Rc};
2
3use super::thread_history::ThreadHistory;
4use acp_thread::{AcpThread, AgentThreadEntry};
5use agent::ThreadStore;
6use agent_client_protocol::{self as acp, 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, SharedString, TextStyleRefinement, WeakEntity, Window,
12};
13use language::language_settings::SoftWrap;
14use project::Project;
15use prompt_store::PromptStore;
16use rope::Point;
17use settings::Settings as _;
18use terminal_view::TerminalView;
19use theme::ThemeSettings;
20use ui::{Context, TextSize};
21use workspace::Workspace;
22
23use crate::message_editor::{MessageEditor, MessageEditorEvent};
24
25pub struct EntryViewState {
26 workspace: WeakEntity<Workspace>,
27 project: WeakEntity<Project>,
28 thread_store: Option<Entity<ThreadStore>>,
29 history: WeakEntity<ThreadHistory>,
30 prompt_store: Option<Entity<PromptStore>>,
31 entries: Vec<Entry>,
32 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
33 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
34 agent_name: SharedString,
35}
36
37impl EntryViewState {
38 pub fn new(
39 workspace: WeakEntity<Workspace>,
40 project: WeakEntity<Project>,
41 thread_store: Option<Entity<ThreadStore>>,
42 history: WeakEntity<ThreadHistory>,
43 prompt_store: Option<Entity<PromptStore>>,
44 prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
45 available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
46 agent_name: SharedString,
47 ) -> Self {
48 Self {
49 workspace,
50 project,
51 thread_store,
52 history,
53 prompt_store,
54 entries: Vec::new(),
55 prompt_capabilities,
56 available_commands,
57 agent_name,
58 }
59 }
60
61 pub fn entry(&self, index: usize) -> Option<&Entry> {
62 self.entries.get(index)
63 }
64
65 pub fn sync_entry(
66 &mut self,
67 index: usize,
68 thread: &Entity<AcpThread>,
69 window: &mut Window,
70 cx: &mut Context<Self>,
71 ) {
72 let Some(thread_entry) = thread.read(cx).entries().get(index) else {
73 return;
74 };
75
76 match thread_entry {
77 AgentThreadEntry::UserMessage(message) => {
78 let has_id = message.id.is_some();
79 let is_subagent = thread.read(cx).parent_session_id().is_some();
80 let chunks = message.chunks.clone();
81 if let Some(Entry::UserMessage(editor)) = self.entries.get_mut(index) {
82 if !editor.focus_handle(cx).is_focused(window) {
83 // Only update if we are not editing.
84 // If we are, cancelling the edit will set the message to the newest content.
85 editor.update(cx, |editor, cx| {
86 editor.set_message(chunks, window, cx);
87 });
88 }
89 } else {
90 let message_editor = cx.new(|cx| {
91 let mut editor = MessageEditor::new(
92 self.workspace.clone(),
93 self.project.clone(),
94 self.thread_store.clone(),
95 self.history.clone(),
96 self.prompt_store.clone(),
97 self.prompt_capabilities.clone(),
98 self.available_commands.clone(),
99 self.agent_name.clone(),
100 "Edit message － @ to include context",
101 editor::EditorMode::AutoHeight {
102 min_lines: 1,
103 max_lines: None,
104 },
105 window,
106 cx,
107 );
108 if !has_id || is_subagent {
109 editor.set_read_only(true, cx);
110 }
111 editor.set_message(chunks, window, cx);
112 editor
113 });
114 cx.subscribe(&message_editor, move |_, editor, event, cx| {
115 cx.emit(EntryViewEvent {
116 entry_index: index,
117 view_event: ViewEvent::MessageEditorEvent(editor, event.clone()),
118 })
119 })
120 .detach();
121 self.set_entry(index, Entry::UserMessage(message_editor));
122 }
123 }
124 AgentThreadEntry::ToolCall(tool_call) => {
125 let id = tool_call.id.clone();
126 let terminals = tool_call.terminals().cloned().collect::<Vec<_>>();
127 let diffs = tool_call.diffs().cloned().collect::<Vec<_>>();
128
129 let views = if let Some(Entry::ToolCall(tool_call)) = self.entries.get_mut(index) {
130 &mut tool_call.content
131 } else {
132 self.set_entry(
133 index,
134 Entry::ToolCall(ToolCallEntry {
135 content: HashMap::default(),
136 }),
137 );
138 let Some(Entry::ToolCall(tool_call)) = self.entries.get_mut(index) else {
139 unreachable!()
140 };
141 &mut tool_call.content
142 };
143
144 let is_tool_call_completed =
145 matches!(tool_call.status, acp_thread::ToolCallStatus::Completed);
146
147 for terminal in terminals {
148 match views.entry(terminal.entity_id()) {
149 collections::hash_map::Entry::Vacant(entry) => {
150 let element = create_terminal(
151 self.workspace.clone(),
152 self.project.clone(),
153 terminal.clone(),
154 window,
155 cx,
156 )
157 .into_any();
158 cx.emit(EntryViewEvent {
159 entry_index: index,
160 view_event: ViewEvent::NewTerminal(id.clone()),
161 });
162 entry.insert(element);
163 }
164 collections::hash_map::Entry::Occupied(_entry) => {
165 if is_tool_call_completed && terminal.read(cx).output().is_none() {
166 cx.emit(EntryViewEvent {
167 entry_index: index,
168 view_event: ViewEvent::TerminalMovedToBackground(id.clone()),
169 });
170 }
171 }
172 }
173 }
174
175 for diff in diffs {
176 views.entry(diff.entity_id()).or_insert_with(|| {
177 let editor = create_editor_diff(diff.clone(), window, cx);
178 cx.subscribe(&editor, {
179 let diff = diff.clone();
180 let entry_index = index;
181 move |_this, _editor, event: &EditorEvent, cx| {
182 if let EditorEvent::OpenExcerptsRequested {
183 selections_by_buffer,
184 split,
185 } = event
186 {
187 let multibuffer = diff.read(cx).multibuffer();
188 if let Some((buffer_id, (ranges, _))) =
189 selections_by_buffer.iter().next()
190 {
191 if let Some(buffer) =
192 multibuffer.read(cx).buffer(*buffer_id)
193 {
194 if let Some(range) = ranges.first() {
195 let point =
196 buffer.read(cx).offset_to_point(range.start.0);
197 if let Some(path) = diff.read(cx).file_path(cx) {
198 cx.emit(EntryViewEvent {
199 entry_index,
200 view_event: ViewEvent::OpenDiffLocation {
201 path,
202 position: point,
203 split: *split,
204 },
205 });
206 }
207 }
208 }
209 }
210 }
211 }
212 })
213 .detach();
214 cx.emit(EntryViewEvent {
215 entry_index: index,
216 view_event: ViewEvent::NewDiff(id.clone()),
217 });
218 editor.into_any()
219 });
220 }
221 }
222 AgentThreadEntry::AssistantMessage(message) => {
223 let entry = if let Some(Entry::AssistantMessage(entry)) =
224 self.entries.get_mut(index)
225 {
226 entry
227 } else {
228 self.set_entry(
229 index,
230 Entry::AssistantMessage(AssistantMessageEntry::default()),
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 };
240 }
241
242 fn set_entry(&mut self, index: usize, entry: Entry) {
243 if index == self.entries.len() {
244 self.entries.push(entry);
245 } else {
246 self.entries[index] = entry;
247 }
248 }
249
250 pub fn remove(&mut self, range: Range<usize>) {
251 self.entries.drain(range);
252 }
253
254 pub fn agent_ui_font_size_changed(&mut self, cx: &mut App) {
255 for entry in self.entries.iter() {
256 match entry {
257 Entry::UserMessage { .. } | Entry::AssistantMessage { .. } => {}
258 Entry::ToolCall(ToolCallEntry { content }) => {
259 for view in content.values() {
260 if let Ok(diff_editor) = view.clone().downcast::<Editor>() {
261 diff_editor.update(cx, |diff_editor, cx| {
262 diff_editor.set_text_style_refinement(
263 diff_editor_text_style_refinement(cx),
264 );
265 cx.notify();
266 })
267 }
268 }
269 }
270 }
271 }
272 }
273}
274
275impl EventEmitter<EntryViewEvent> for EntryViewState {}
276
277pub struct EntryViewEvent {
278 pub entry_index: usize,
279 pub view_event: ViewEvent,
280}
281
282pub enum ViewEvent {
283 NewDiff(ToolCallId),
284 NewTerminal(ToolCallId),
285 TerminalMovedToBackground(ToolCallId),
286 MessageEditorEvent(Entity<MessageEditor>, MessageEditorEvent),
287 OpenDiffLocation {
288 path: String,
289 position: Point,
290 split: bool,
291 },
292}
293
294#[derive(Default, Debug)]
295pub struct AssistantMessageEntry {
296 scroll_handles_by_chunk_index: HashMap<usize, ScrollHandle>,
297}
298
299impl AssistantMessageEntry {
300 pub fn scroll_handle_for_chunk(&self, ix: usize) -> Option<ScrollHandle> {
301 self.scroll_handles_by_chunk_index.get(&ix).cloned()
302 }
303
304 pub fn sync(&mut self, message: &acp_thread::AssistantMessage) {
305 if let Some(acp_thread::AssistantMessageChunk::Thought { .. }) = message.chunks.last() {
306 let ix = message.chunks.len() - 1;
307 let handle = self.scroll_handles_by_chunk_index.entry(ix).or_default();
308 handle.scroll_to_bottom();
309 }
310 }
311}
312
313#[derive(Debug)]
314pub struct ToolCallEntry {
315 content: HashMap<EntityId, AnyEntity>,
316}
317
318#[derive(Debug)]
319pub enum Entry {
320 UserMessage(Entity<MessageEditor>),
321 AssistantMessage(AssistantMessageEntry),
322 ToolCall(ToolCallEntry),
323}
324
325impl Entry {
326 pub fn focus_handle(&self, cx: &App) -> Option<FocusHandle> {
327 match self {
328 Self::UserMessage(editor) => Some(editor.read(cx).focus_handle(cx)),
329 Self::AssistantMessage(_) | Self::ToolCall(_) => None,
330 }
331 }
332
333 pub fn message_editor(&self) -> Option<&Entity<MessageEditor>> {
334 match self {
335 Self::UserMessage(editor) => Some(editor),
336 Self::AssistantMessage(_) | Self::ToolCall(_) => None,
337 }
338 }
339
340 pub fn editor_for_diff(&self, diff: &Entity<acp_thread::Diff>) -> Option<Entity<Editor>> {
341 self.content_map()?
342 .get(&diff.entity_id())
343 .cloned()
344 .map(|entity| entity.downcast::<Editor>().unwrap())
345 }
346
347 pub fn terminal(
348 &self,
349 terminal: &Entity<acp_thread::Terminal>,
350 ) -> Option<Entity<TerminalView>> {
351 self.content_map()?
352 .get(&terminal.entity_id())
353 .cloned()
354 .map(|entity| entity.downcast::<TerminalView>().unwrap())
355 }
356
357 pub fn scroll_handle_for_assistant_message_chunk(
358 &self,
359 chunk_ix: usize,
360 ) -> Option<ScrollHandle> {
361 match self {
362 Self::AssistantMessage(message) => message.scroll_handle_for_chunk(chunk_ix),
363 Self::UserMessage(_) | Self::ToolCall(_) => None,
364 }
365 }
366
367 fn content_map(&self) -> Option<&HashMap<EntityId, AnyEntity>> {
368 match self {
369 Self::ToolCall(ToolCallEntry { content }) => Some(content),
370 _ => None,
371 }
372 }
373
374 #[cfg(test)]
375 pub fn has_content(&self) -> bool {
376 match self {
377 Self::ToolCall(ToolCallEntry { content }) => !content.is_empty(),
378 Self::UserMessage(_) | Self::AssistantMessage(_) => false,
379 }
380 }
381}
382
383fn create_terminal(
384 workspace: WeakEntity<Workspace>,
385 project: WeakEntity<Project>,
386 terminal: Entity<acp_thread::Terminal>,
387 window: &mut Window,
388 cx: &mut App,
389) -> Entity<TerminalView> {
390 cx.new(|cx| {
391 let mut view = TerminalView::new(
392 terminal.read(cx).inner().clone(),
393 workspace,
394 None,
395 project,
396 window,
397 cx,
398 );
399 view.set_embedded_mode(Some(1000), cx);
400 view
401 })
402}
403
404fn create_editor_diff(
405 diff: Entity<acp_thread::Diff>,
406 window: &mut Window,
407 cx: &mut App,
408) -> Entity<Editor> {
409 cx.new(|cx| {
410 let mut editor = Editor::new(
411 EditorMode::Full {
412 scale_ui_elements_with_buffer_font_size: false,
413 show_active_line_background: false,
414 sizing_behavior: SizingBehavior::SizeByContent,
415 },
416 diff.read(cx).multibuffer().clone(),
417 None,
418 window,
419 cx,
420 );
421 editor.set_show_gutter(false, cx);
422 editor.disable_inline_diagnostics();
423 editor.disable_expand_excerpt_buttons(cx);
424 editor.set_show_vertical_scrollbar(false, cx);
425 editor.set_minimap_visibility(MinimapVisibility::Disabled, window, cx);
426 editor.set_soft_wrap_mode(SoftWrap::None, cx);
427 editor.scroll_manager.set_forbid_vertical_scroll(true);
428 editor.set_show_indent_guides(false, cx);
429 editor.set_read_only(true);
430 editor.set_delegate_open_excerpts(true);
431 editor.set_show_breakpoints(false, cx);
432 editor.set_show_code_actions(false, cx);
433 editor.set_show_git_diff_gutter(false, cx);
434 editor.set_expand_all_diff_hunks(cx);
435 editor.set_text_style_refinement(diff_editor_text_style_refinement(cx));
436 editor
437 })
438}
439
440fn diff_editor_text_style_refinement(cx: &mut App) -> TextStyleRefinement {
441 TextStyleRefinement {
442 font_size: Some(
443 TextSize::Small
444 .rems(cx)
445 .to_pixels(ThemeSettings::get_global(cx).agent_ui_font_size(cx))
446 .into(),
447 ),
448 ..Default::default()
449 }
450}
451
452#[cfg(test)]
453mod tests {
454 use std::path::Path;
455 use std::rc::Rc;
456
457 use acp_thread::{AgentConnection, StubAgentConnection};
458 use agent_client_protocol as acp;
459 use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
460 use editor::RowInfo;
461 use fs::FakeFs;
462 use gpui::{AppContext as _, TestAppContext};
463
464 use crate::entry_view_state::EntryViewState;
465 use multi_buffer::MultiBufferRow;
466 use pretty_assertions::assert_matches;
467 use project::Project;
468 use serde_json::json;
469 use settings::SettingsStore;
470 use util::path;
471 use workspace::MultiWorkspace;
472
473 #[gpui::test]
474 async fn test_diff_sync(cx: &mut TestAppContext) {
475 init_test(cx);
476 let fs = FakeFs::new(cx.executor());
477 fs.insert_tree(
478 "/project",
479 json!({
480 "hello.txt": "hi world"
481 }),
482 )
483 .await;
484 let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
485
486 let (multi_workspace, cx) =
487 cx.add_window_view(|window, cx| MultiWorkspace::test_new(project.clone(), window, cx));
488 let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
489
490 let tool_call = acp::ToolCall::new("tool", "Tool call")
491 .status(acp::ToolCallStatus::InProgress)
492 .content(vec![acp::ToolCallContent::Diff(
493 acp::Diff::new("/project/hello.txt", "hello world").old_text("hi world"),
494 )]);
495 let connection = Rc::new(StubAgentConnection::new());
496 let thread = cx
497 .update(|_, cx| {
498 connection
499 .clone()
500 .new_session(project.clone(), Path::new(path!("/project")), cx)
501 })
502 .await
503 .unwrap();
504 let session_id = thread.update(cx, |thread, _| thread.session_id().clone());
505
506 cx.update(|_, cx| {
507 connection.send_update(session_id, acp::SessionUpdate::ToolCall(tool_call), cx)
508 });
509
510 let thread_store = None;
511 let history =
512 cx.update(|window, cx| cx.new(|cx| crate::ThreadHistory::new(None, window, cx)));
513
514 let view_state = cx.new(|_cx| {
515 EntryViewState::new(
516 workspace.downgrade(),
517 project.downgrade(),
518 thread_store,
519 history.downgrade(),
520 None,
521 Default::default(),
522 Default::default(),
523 "Test Agent".into(),
524 )
525 });
526
527 view_state.update_in(cx, |view_state, window, cx| {
528 view_state.sync_entry(0, &thread, window, cx)
529 });
530
531 let diff = thread.read_with(cx, |thread, _| {
532 thread
533 .entries()
534 .get(0)
535 .unwrap()
536 .diffs()
537 .next()
538 .unwrap()
539 .clone()
540 });
541
542 cx.run_until_parked();
543
544 let diff_editor = view_state.read_with(cx, |view_state, _cx| {
545 view_state.entry(0).unwrap().editor_for_diff(&diff).unwrap()
546 });
547 assert_eq!(
548 diff_editor.read_with(cx, |editor, cx| editor.text(cx)),
549 "hi world\nhello world"
550 );
551 let row_infos = diff_editor.read_with(cx, |editor, cx| {
552 let multibuffer = editor.buffer().read(cx);
553 multibuffer
554 .snapshot(cx)
555 .row_infos(MultiBufferRow(0))
556 .collect::<Vec<_>>()
557 });
558 assert_matches!(
559 row_infos.as_slice(),
560 [
561 RowInfo {
562 multibuffer_row: Some(MultiBufferRow(0)),
563 diff_status: Some(DiffHunkStatus {
564 kind: DiffHunkStatusKind::Deleted,
565 ..
566 }),
567 ..
568 },
569 RowInfo {
570 multibuffer_row: Some(MultiBufferRow(1)),
571 diff_status: Some(DiffHunkStatus {
572 kind: DiffHunkStatusKind::Added,
573 ..
574 }),
575 ..
576 }
577 ]
578 );
579 }
580
581 fn init_test(cx: &mut TestAppContext) {
582 cx.update(|cx| {
583 let settings_store = SettingsStore::test(cx);
584 cx.set_global(settings_store);
585 theme::init(theme::LoadThemes::JustBase, cx);
586 release_channel::init(semver::Version::new(0, 0, 0), cx);
587 });
588 }
589}