1use std::cmp;
2use std::mem;
3use std::ops::Range;
4use std::rc::Rc;
5use std::sync::Arc;
6
7use crate::{
8 AgentPanel,
9 buffer_codegen::{BufferCodegen, CodegenAlternative, CodegenEvent},
10 context_store::ContextStore,
11 inline_prompt_editor::{CodegenStatus, InlineAssistId, PromptEditor, PromptEditorEvent},
12 terminal_inline_assistant::TerminalInlineAssistant,
13};
14use agent::HistoryStore;
15use agent_settings::AgentSettings;
16use anyhow::{Context as _, Result};
17use client::telemetry::Telemetry;
18use collections::{HashMap, HashSet, VecDeque, hash_map};
19use editor::RowExt;
20use editor::SelectionEffects;
21use editor::scroll::ScrollOffset;
22use editor::{
23 Anchor, AnchorRangeExt, CodeActionProvider, Editor, EditorEvent, ExcerptId, ExcerptRange,
24 MultiBuffer, MultiBufferSnapshot, ToOffset as _, ToPoint,
25 actions::SelectAll,
26 display_map::{
27 BlockContext, BlockPlacement, BlockProperties, BlockStyle, CustomBlockId, EditorMargins,
28 RenderBlock, ToDisplayPoint,
29 },
30};
31use fs::Fs;
32use gpui::{
33 App, Context, Entity, Focusable, Global, HighlightStyle, Subscription, Task, UpdateGlobal,
34 WeakEntity, Window, point,
35};
36use language::{Buffer, Point, Selection, TransactionId};
37use language_model::{
38 ConfigurationError, ConfiguredModel, LanguageModelRegistry, report_assistant_event,
39};
40use multi_buffer::MultiBufferRow;
41use parking_lot::Mutex;
42use project::{CodeAction, DisableAiSettings, LspAction, Project, ProjectTransaction};
43use prompt_store::{PromptBuilder, PromptStore};
44use settings::{Settings, SettingsStore};
45use telemetry_events::{AssistantEventData, AssistantKind, AssistantPhase};
46use terminal_view::{TerminalView, terminal_panel::TerminalPanel};
47use text::{OffsetRangeExt, ToPoint as _};
48use ui::prelude::*;
49use util::{RangeExt, ResultExt, maybe};
50use workspace::{ItemHandle, Toast, Workspace, dock::Panel, notifications::NotificationId};
51use zed_actions::agent::OpenSettings;
52
53pub fn init(
54 fs: Arc<dyn Fs>,
55 prompt_builder: Arc<PromptBuilder>,
56 telemetry: Arc<Telemetry>,
57 cx: &mut App,
58) {
59 cx.set_global(InlineAssistant::new(fs, prompt_builder, telemetry));
60
61 cx.observe_global::<SettingsStore>(|cx| {
62 if DisableAiSettings::get_global(cx).disable_ai {
63 // Hide any active inline assist UI when AI is disabled
64 InlineAssistant::update_global(cx, |assistant, cx| {
65 assistant.cancel_all_active_completions(cx);
66 });
67 }
68 })
69 .detach();
70
71 cx.observe_new(|_workspace: &mut Workspace, window, cx| {
72 let Some(window) = window else {
73 return;
74 };
75 let workspace = cx.entity();
76 InlineAssistant::update_global(cx, |inline_assistant, cx| {
77 inline_assistant.register_workspace(&workspace, window, cx)
78 });
79 })
80 .detach();
81}
82
83const PROMPT_HISTORY_MAX_LEN: usize = 20;
84
85enum InlineAssistTarget {
86 Editor(Entity<Editor>),
87 Terminal(Entity<TerminalView>),
88}
89
90pub struct InlineAssistant {
91 next_assist_id: InlineAssistId,
92 next_assist_group_id: InlineAssistGroupId,
93 assists: HashMap<InlineAssistId, InlineAssist>,
94 assists_by_editor: HashMap<WeakEntity<Editor>, EditorInlineAssists>,
95 assist_groups: HashMap<InlineAssistGroupId, InlineAssistGroup>,
96 confirmed_assists: HashMap<InlineAssistId, Entity<CodegenAlternative>>,
97 prompt_history: VecDeque<String>,
98 prompt_builder: Arc<PromptBuilder>,
99 telemetry: Arc<Telemetry>,
100 fs: Arc<dyn Fs>,
101}
102
103impl Global for InlineAssistant {}
104
105impl InlineAssistant {
106 pub fn new(
107 fs: Arc<dyn Fs>,
108 prompt_builder: Arc<PromptBuilder>,
109 telemetry: Arc<Telemetry>,
110 ) -> Self {
111 Self {
112 next_assist_id: InlineAssistId::default(),
113 next_assist_group_id: InlineAssistGroupId::default(),
114 assists: HashMap::default(),
115 assists_by_editor: HashMap::default(),
116 assist_groups: HashMap::default(),
117 confirmed_assists: HashMap::default(),
118 prompt_history: VecDeque::default(),
119 prompt_builder,
120 telemetry,
121 fs,
122 }
123 }
124
125 pub fn register_workspace(
126 &mut self,
127 workspace: &Entity<Workspace>,
128 window: &mut Window,
129 cx: &mut App,
130 ) {
131 window
132 .subscribe(workspace, cx, |workspace, event, window, cx| {
133 Self::update_global(cx, |this, cx| {
134 this.handle_workspace_event(workspace, event, window, cx)
135 });
136 })
137 .detach();
138
139 let workspace = workspace.downgrade();
140 cx.observe_global::<SettingsStore>(move |cx| {
141 let Some(workspace) = workspace.upgrade() else {
142 return;
143 };
144 let Some(terminal_panel) = workspace.read(cx).panel::<TerminalPanel>(cx) else {
145 return;
146 };
147 let enabled = AgentSettings::get_global(cx).enabled(cx);
148 terminal_panel.update(cx, |terminal_panel, cx| {
149 terminal_panel.set_assistant_enabled(enabled, cx)
150 });
151 })
152 .detach();
153 }
154
155 /// Hides all active inline assists when AI is disabled
156 pub fn cancel_all_active_completions(&mut self, cx: &mut App) {
157 // Cancel all active completions in editors
158 for (editor_handle, _) in self.assists_by_editor.iter() {
159 if let Some(editor) = editor_handle.upgrade() {
160 let windows = cx.windows();
161 if !windows.is_empty() {
162 let window = windows[0];
163 let _ = window.update(cx, |_, window, cx| {
164 editor.update(cx, |editor, cx| {
165 if editor.has_active_edit_prediction() {
166 editor.cancel(&Default::default(), window, cx);
167 }
168 });
169 });
170 }
171 }
172 }
173 }
174
175 fn handle_workspace_event(
176 &mut self,
177 workspace: Entity<Workspace>,
178 event: &workspace::Event,
179 window: &mut Window,
180 cx: &mut App,
181 ) {
182 match event {
183 workspace::Event::UserSavedItem { item, .. } => {
184 // When the user manually saves an editor, automatically accepts all finished transformations.
185 if let Some(editor) = item.upgrade().and_then(|item| item.act_as::<Editor>(cx))
186 && let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade())
187 {
188 for assist_id in editor_assists.assist_ids.clone() {
189 let assist = &self.assists[&assist_id];
190 if let CodegenStatus::Done = assist.codegen.read(cx).status(cx) {
191 self.finish_assist(assist_id, false, window, cx)
192 }
193 }
194 }
195 }
196 workspace::Event::ItemAdded { item } => {
197 self.register_workspace_item(&workspace, item.as_ref(), window, cx);
198 }
199 _ => (),
200 }
201 }
202
203 fn register_workspace_item(
204 &mut self,
205 workspace: &Entity<Workspace>,
206 item: &dyn ItemHandle,
207 window: &mut Window,
208 cx: &mut App,
209 ) {
210 let is_ai_enabled = !DisableAiSettings::get_global(cx).disable_ai;
211
212 if let Some(editor) = item.act_as::<Editor>(cx) {
213 editor.update(cx, |editor, cx| {
214 if is_ai_enabled {
215 let panel = workspace.read(cx).panel::<AgentPanel>(cx);
216 let thread_store = panel
217 .as_ref()
218 .map(|agent_panel| agent_panel.read(cx).thread_store().downgrade());
219
220 editor.add_code_action_provider(
221 Rc::new(AssistantCodeActionProvider {
222 editor: cx.entity().downgrade(),
223 workspace: workspace.downgrade(),
224 thread_store,
225 }),
226 window,
227 cx,
228 );
229
230 if DisableAiSettings::get_global(cx).disable_ai {
231 // Cancel any active edit predictions
232 if editor.has_active_edit_prediction() {
233 editor.cancel(&Default::default(), window, cx);
234 }
235 }
236
237 // Remove the Assistant1 code action provider, as it still might be registered.
238 editor.remove_code_action_provider("assistant".into(), window, cx);
239 } else {
240 editor.remove_code_action_provider(
241 ASSISTANT_CODE_ACTION_PROVIDER_ID.into(),
242 window,
243 cx,
244 );
245 }
246 });
247 }
248 }
249
250 pub fn inline_assist(
251 workspace: &mut Workspace,
252 action: &zed_actions::assistant::InlineAssist,
253 window: &mut Window,
254 cx: &mut Context<Workspace>,
255 ) {
256 if !AgentSettings::get_global(cx).enabled(cx) {
257 return;
258 }
259
260 let Some(inline_assist_target) = Self::resolve_inline_assist_target(
261 workspace,
262 workspace.panel::<AgentPanel>(cx),
263 window,
264 cx,
265 ) else {
266 return;
267 };
268
269 let configuration_error = || {
270 let model_registry = LanguageModelRegistry::read_global(cx);
271 model_registry.configuration_error(model_registry.inline_assistant_model(), cx)
272 };
273
274 let Some(agent_panel) = workspace.panel::<AgentPanel>(cx) else {
275 return;
276 };
277 let agent_panel = agent_panel.read(cx);
278
279 let prompt_store = agent_panel.prompt_store().as_ref().cloned();
280 let thread_store = Some(agent_panel.thread_store().downgrade());
281 let context_store = agent_panel.inline_assist_context_store().clone();
282
283 let handle_assist =
284 |window: &mut Window, cx: &mut Context<Workspace>| match inline_assist_target {
285 InlineAssistTarget::Editor(active_editor) => {
286 InlineAssistant::update_global(cx, |assistant, cx| {
287 assistant.assist(
288 &active_editor,
289 cx.entity().downgrade(),
290 context_store,
291 workspace.project().downgrade(),
292 prompt_store,
293 thread_store,
294 action.prompt.clone(),
295 window,
296 cx,
297 )
298 })
299 }
300 InlineAssistTarget::Terminal(active_terminal) => {
301 TerminalInlineAssistant::update_global(cx, |assistant, cx| {
302 assistant.assist(
303 &active_terminal,
304 cx.entity().downgrade(),
305 workspace.project().downgrade(),
306 prompt_store,
307 thread_store,
308 action.prompt.clone(),
309 window,
310 cx,
311 )
312 })
313 }
314 };
315
316 if let Some(error) = configuration_error() {
317 if let ConfigurationError::ProviderNotAuthenticated(provider) = error {
318 cx.spawn(async move |_, cx| {
319 cx.update(|cx| provider.authenticate(cx))?.await?;
320 anyhow::Ok(())
321 })
322 .detach_and_log_err(cx);
323
324 if configuration_error().is_none() {
325 handle_assist(window, cx);
326 }
327 } else {
328 cx.spawn_in(window, async move |_, cx| {
329 let answer = cx
330 .prompt(
331 gpui::PromptLevel::Warning,
332 &error.to_string(),
333 None,
334 &["Configure", "Cancel"],
335 )
336 .await
337 .ok();
338 if let Some(answer) = answer
339 && answer == 0
340 {
341 cx.update(|window, cx| window.dispatch_action(Box::new(OpenSettings), cx))
342 .ok();
343 }
344 anyhow::Ok(())
345 })
346 .detach_and_log_err(cx);
347 }
348 } else {
349 handle_assist(window, cx);
350 }
351 }
352
353 pub fn assist(
354 &mut self,
355 editor: &Entity<Editor>,
356 workspace: WeakEntity<Workspace>,
357 context_store: Entity<ContextStore>,
358 project: WeakEntity<Project>,
359 prompt_store: Option<Entity<PromptStore>>,
360 thread_store: Option<WeakEntity<HistoryStore>>,
361 initial_prompt: Option<String>,
362 window: &mut Window,
363 cx: &mut App,
364 ) {
365 let (snapshot, initial_selections, newest_selection) = editor.update(cx, |editor, cx| {
366 let snapshot = editor.snapshot(window, cx);
367 let selections = editor.selections.all::<Point>(&snapshot.display_snapshot);
368 let newest_selection = editor
369 .selections
370 .newest::<Point>(&snapshot.display_snapshot);
371 (snapshot, selections, newest_selection)
372 });
373
374 // Check if there is already an inline assistant that contains the
375 // newest selection, if there is, focus it
376 if let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) {
377 for assist_id in &editor_assists.assist_ids {
378 let assist = &self.assists[assist_id];
379 let range = assist.range.to_point(&snapshot.buffer_snapshot());
380 if range.start.row <= newest_selection.start.row
381 && newest_selection.end.row <= range.end.row
382 {
383 self.focus_assist(*assist_id, window, cx);
384 return;
385 }
386 }
387 }
388
389 let mut selections = Vec::<Selection<Point>>::new();
390 let mut newest_selection = None;
391 for mut selection in initial_selections {
392 if selection.end > selection.start {
393 selection.start.column = 0;
394 // If the selection ends at the start of the line, we don't want to include it.
395 if selection.end.column == 0 {
396 selection.end.row -= 1;
397 }
398 selection.end.column = snapshot
399 .buffer_snapshot()
400 .line_len(MultiBufferRow(selection.end.row));
401 } else if let Some(fold) =
402 snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row))
403 {
404 selection.start = fold.range().start;
405 selection.end = fold.range().end;
406 if MultiBufferRow(selection.end.row) < snapshot.buffer_snapshot().max_row() {
407 let chars = snapshot
408 .buffer_snapshot()
409 .chars_at(Point::new(selection.end.row + 1, 0));
410
411 for c in chars {
412 if c == '\n' {
413 break;
414 }
415 if c.is_whitespace() {
416 continue;
417 }
418 if snapshot
419 .language_at(selection.end)
420 .is_some_and(|language| language.config().brackets.is_closing_brace(c))
421 {
422 selection.end.row += 1;
423 selection.end.column = snapshot
424 .buffer_snapshot()
425 .line_len(MultiBufferRow(selection.end.row));
426 }
427 }
428 }
429 }
430
431 if let Some(prev_selection) = selections.last_mut()
432 && selection.start <= prev_selection.end
433 {
434 prev_selection.end = selection.end;
435 continue;
436 }
437
438 let latest_selection = newest_selection.get_or_insert_with(|| selection.clone());
439 if selection.id > latest_selection.id {
440 *latest_selection = selection.clone();
441 }
442 selections.push(selection);
443 }
444 let snapshot = &snapshot.buffer_snapshot();
445 let newest_selection = newest_selection.unwrap();
446
447 let mut codegen_ranges = Vec::new();
448 for (buffer, buffer_range, excerpt_id) in
449 snapshot.ranges_to_buffer_ranges(selections.iter().map(|selection| {
450 snapshot.anchor_before(selection.start)..snapshot.anchor_after(selection.end)
451 }))
452 {
453 let anchor_range = Anchor::range_in_buffer(
454 excerpt_id,
455 buffer.remote_id(),
456 buffer.anchor_before(buffer_range.start)..buffer.anchor_after(buffer_range.end),
457 );
458
459 codegen_ranges.push(anchor_range);
460
461 if let Some(model) = LanguageModelRegistry::read_global(cx).inline_assistant_model() {
462 self.telemetry.report_assistant_event(AssistantEventData {
463 conversation_id: None,
464 kind: AssistantKind::Inline,
465 phase: AssistantPhase::Invoked,
466 message_id: None,
467 model: model.model.telemetry_id(),
468 model_provider: model.provider.id().to_string(),
469 response_latency: None,
470 error_message: None,
471 language_name: buffer.language().map(|language| language.name().to_proto()),
472 });
473 }
474 }
475
476 let assist_group_id = self.next_assist_group_id.post_inc();
477 let prompt_buffer = cx.new(|cx| {
478 MultiBuffer::singleton(
479 cx.new(|cx| Buffer::local(initial_prompt.unwrap_or_default(), cx)),
480 cx,
481 )
482 });
483
484 let mut assists = Vec::new();
485 let mut assist_to_focus = None;
486 for range in codegen_ranges {
487 let assist_id = self.next_assist_id.post_inc();
488 let codegen = cx.new(|cx| {
489 BufferCodegen::new(
490 editor.read(cx).buffer().clone(),
491 range.clone(),
492 None,
493 context_store.clone(),
494 project.clone(),
495 prompt_store.clone(),
496 self.telemetry.clone(),
497 self.prompt_builder.clone(),
498 cx,
499 )
500 });
501
502 let editor_margins = Arc::new(Mutex::new(EditorMargins::default()));
503 let prompt_editor = cx.new(|cx| {
504 PromptEditor::new_buffer(
505 assist_id,
506 editor_margins,
507 self.prompt_history.clone(),
508 prompt_buffer.clone(),
509 codegen.clone(),
510 self.fs.clone(),
511 context_store.clone(),
512 workspace.clone(),
513 thread_store.clone(),
514 prompt_store.as_ref().map(|s| s.downgrade()),
515 window,
516 cx,
517 )
518 });
519
520 if assist_to_focus.is_none() {
521 let focus_assist = if newest_selection.reversed {
522 range.start.to_point(snapshot) == newest_selection.start
523 } else {
524 range.end.to_point(snapshot) == newest_selection.end
525 };
526 if focus_assist {
527 assist_to_focus = Some(assist_id);
528 }
529 }
530
531 let [prompt_block_id, end_block_id] =
532 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
533
534 assists.push((
535 assist_id,
536 range,
537 prompt_editor,
538 prompt_block_id,
539 end_block_id,
540 ));
541 }
542
543 let editor_assists = self
544 .assists_by_editor
545 .entry(editor.downgrade())
546 .or_insert_with(|| EditorInlineAssists::new(editor, window, cx));
547 let mut assist_group = InlineAssistGroup::new();
548 for (assist_id, range, prompt_editor, prompt_block_id, end_block_id) in assists {
549 let codegen = prompt_editor.read(cx).codegen().clone();
550
551 self.assists.insert(
552 assist_id,
553 InlineAssist::new(
554 assist_id,
555 assist_group_id,
556 editor,
557 &prompt_editor,
558 prompt_block_id,
559 end_block_id,
560 range,
561 codegen,
562 workspace.clone(),
563 window,
564 cx,
565 ),
566 );
567 assist_group.assist_ids.push(assist_id);
568 editor_assists.assist_ids.push(assist_id);
569 }
570 self.assist_groups.insert(assist_group_id, assist_group);
571
572 if let Some(assist_id) = assist_to_focus {
573 self.focus_assist(assist_id, window, cx);
574 }
575 }
576
577 pub fn suggest_assist(
578 &mut self,
579 editor: &Entity<Editor>,
580 mut range: Range<Anchor>,
581 initial_prompt: String,
582 initial_transaction_id: Option<TransactionId>,
583 focus: bool,
584 workspace: Entity<Workspace>,
585 prompt_store: Option<Entity<PromptStore>>,
586 thread_store: Option<WeakEntity<HistoryStore>>,
587 window: &mut Window,
588 cx: &mut App,
589 ) -> InlineAssistId {
590 let assist_group_id = self.next_assist_group_id.post_inc();
591 let prompt_buffer = cx.new(|cx| Buffer::local(&initial_prompt, cx));
592 let prompt_buffer = cx.new(|cx| MultiBuffer::singleton(prompt_buffer, cx));
593
594 let assist_id = self.next_assist_id.post_inc();
595
596 let buffer = editor.read(cx).buffer().clone();
597 {
598 let snapshot = buffer.read(cx).read(cx);
599 range.start = range.start.bias_left(&snapshot);
600 range.end = range.end.bias_right(&snapshot);
601 }
602
603 let project = workspace.read(cx).project().downgrade();
604 let context_store = cx.new(|_cx| ContextStore::new(project.clone()));
605
606 let codegen = cx.new(|cx| {
607 BufferCodegen::new(
608 editor.read(cx).buffer().clone(),
609 range.clone(),
610 initial_transaction_id,
611 context_store.clone(),
612 project,
613 prompt_store.clone(),
614 self.telemetry.clone(),
615 self.prompt_builder.clone(),
616 cx,
617 )
618 });
619
620 let editor_margins = Arc::new(Mutex::new(EditorMargins::default()));
621 let prompt_editor = cx.new(|cx| {
622 PromptEditor::new_buffer(
623 assist_id,
624 editor_margins,
625 self.prompt_history.clone(),
626 prompt_buffer.clone(),
627 codegen.clone(),
628 self.fs.clone(),
629 context_store,
630 workspace.downgrade(),
631 thread_store,
632 prompt_store.map(|s| s.downgrade()),
633 window,
634 cx,
635 )
636 });
637
638 let [prompt_block_id, end_block_id] =
639 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
640
641 let editor_assists = self
642 .assists_by_editor
643 .entry(editor.downgrade())
644 .or_insert_with(|| EditorInlineAssists::new(editor, window, cx));
645
646 let mut assist_group = InlineAssistGroup::new();
647 self.assists.insert(
648 assist_id,
649 InlineAssist::new(
650 assist_id,
651 assist_group_id,
652 editor,
653 &prompt_editor,
654 prompt_block_id,
655 end_block_id,
656 range,
657 codegen.clone(),
658 workspace.downgrade(),
659 window,
660 cx,
661 ),
662 );
663 assist_group.assist_ids.push(assist_id);
664 editor_assists.assist_ids.push(assist_id);
665 self.assist_groups.insert(assist_group_id, assist_group);
666
667 if focus {
668 self.focus_assist(assist_id, window, cx);
669 }
670
671 assist_id
672 }
673
674 fn insert_assist_blocks(
675 &self,
676 editor: &Entity<Editor>,
677 range: &Range<Anchor>,
678 prompt_editor: &Entity<PromptEditor<BufferCodegen>>,
679 cx: &mut App,
680 ) -> [CustomBlockId; 2] {
681 let prompt_editor_height = prompt_editor.update(cx, |prompt_editor, cx| {
682 prompt_editor
683 .editor
684 .update(cx, |editor, cx| editor.max_point(cx).row().0 + 1 + 2)
685 });
686 let assist_blocks = vec![
687 BlockProperties {
688 style: BlockStyle::Sticky,
689 placement: BlockPlacement::Above(range.start),
690 height: Some(prompt_editor_height),
691 render: build_assist_editor_renderer(prompt_editor),
692 priority: 0,
693 },
694 BlockProperties {
695 style: BlockStyle::Sticky,
696 placement: BlockPlacement::Below(range.end),
697 height: None,
698 render: Arc::new(|cx| {
699 v_flex()
700 .h_full()
701 .w_full()
702 .border_t_1()
703 .border_color(cx.theme().status().info_border)
704 .into_any_element()
705 }),
706 priority: 0,
707 },
708 ];
709
710 editor.update(cx, |editor, cx| {
711 let block_ids = editor.insert_blocks(assist_blocks, None, cx);
712 [block_ids[0], block_ids[1]]
713 })
714 }
715
716 fn handle_prompt_editor_focus_in(&mut self, assist_id: InlineAssistId, cx: &mut App) {
717 let assist = &self.assists[&assist_id];
718 let Some(decorations) = assist.decorations.as_ref() else {
719 return;
720 };
721 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
722 let editor_assists = self.assists_by_editor.get_mut(&assist.editor).unwrap();
723
724 assist_group.active_assist_id = Some(assist_id);
725 if assist_group.linked {
726 for assist_id in &assist_group.assist_ids {
727 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
728 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
729 prompt_editor.set_show_cursor_when_unfocused(true, cx)
730 });
731 }
732 }
733 }
734
735 assist
736 .editor
737 .update(cx, |editor, cx| {
738 let scroll_top = editor.scroll_position(cx).y;
739 let scroll_bottom = scroll_top + editor.visible_line_count().unwrap_or(0.);
740 editor_assists.scroll_lock = editor
741 .row_for_block(decorations.prompt_block_id, cx)
742 .map(|row| row.as_f64())
743 .filter(|prompt_row| (scroll_top..scroll_bottom).contains(&prompt_row))
744 .map(|prompt_row| InlineAssistScrollLock {
745 assist_id,
746 distance_from_top: prompt_row - scroll_top,
747 });
748 })
749 .ok();
750 }
751
752 fn handle_prompt_editor_focus_out(&mut self, assist_id: InlineAssistId, cx: &mut App) {
753 let assist = &self.assists[&assist_id];
754 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
755 if assist_group.active_assist_id == Some(assist_id) {
756 assist_group.active_assist_id = None;
757 if assist_group.linked {
758 for assist_id in &assist_group.assist_ids {
759 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
760 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
761 prompt_editor.set_show_cursor_when_unfocused(false, cx)
762 });
763 }
764 }
765 }
766 }
767 }
768
769 fn handle_prompt_editor_event(
770 &mut self,
771 prompt_editor: Entity<PromptEditor<BufferCodegen>>,
772 event: &PromptEditorEvent,
773 window: &mut Window,
774 cx: &mut App,
775 ) {
776 let assist_id = prompt_editor.read(cx).id();
777 match event {
778 PromptEditorEvent::StartRequested => {
779 self.start_assist(assist_id, window, cx);
780 }
781 PromptEditorEvent::StopRequested => {
782 self.stop_assist(assist_id, cx);
783 }
784 PromptEditorEvent::ConfirmRequested { execute: _ } => {
785 self.finish_assist(assist_id, false, window, cx);
786 }
787 PromptEditorEvent::CancelRequested => {
788 self.finish_assist(assist_id, true, window, cx);
789 }
790 PromptEditorEvent::Resized { .. } => {
791 // This only matters for the terminal inline assistant
792 }
793 }
794 }
795
796 fn handle_editor_newline(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
797 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
798 return;
799 };
800
801 if editor.read(cx).selections.count() == 1 {
802 let (selection, buffer) = editor.update(cx, |editor, cx| {
803 (
804 editor
805 .selections
806 .newest::<usize>(&editor.display_snapshot(cx)),
807 editor.buffer().read(cx).snapshot(cx),
808 )
809 });
810 for assist_id in &editor_assists.assist_ids {
811 let assist = &self.assists[assist_id];
812 let assist_range = assist.range.to_offset(&buffer);
813 if assist_range.contains(&selection.start) && assist_range.contains(&selection.end)
814 {
815 if matches!(assist.codegen.read(cx).status(cx), CodegenStatus::Pending) {
816 self.dismiss_assist(*assist_id, window, cx);
817 } else {
818 self.finish_assist(*assist_id, false, window, cx);
819 }
820
821 return;
822 }
823 }
824 }
825
826 cx.propagate();
827 }
828
829 fn handle_editor_cancel(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
830 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
831 return;
832 };
833
834 if editor.read(cx).selections.count() == 1 {
835 let (selection, buffer) = editor.update(cx, |editor, cx| {
836 (
837 editor
838 .selections
839 .newest::<usize>(&editor.display_snapshot(cx)),
840 editor.buffer().read(cx).snapshot(cx),
841 )
842 });
843 let mut closest_assist_fallback = None;
844 for assist_id in &editor_assists.assist_ids {
845 let assist = &self.assists[assist_id];
846 let assist_range = assist.range.to_offset(&buffer);
847 if assist.decorations.is_some() {
848 if assist_range.contains(&selection.start)
849 && assist_range.contains(&selection.end)
850 {
851 self.focus_assist(*assist_id, window, cx);
852 return;
853 } else {
854 let distance_from_selection = assist_range
855 .start
856 .abs_diff(selection.start)
857 .min(assist_range.start.abs_diff(selection.end))
858 + assist_range
859 .end
860 .abs_diff(selection.start)
861 .min(assist_range.end.abs_diff(selection.end));
862 match closest_assist_fallback {
863 Some((_, old_distance)) => {
864 if distance_from_selection < old_distance {
865 closest_assist_fallback =
866 Some((assist_id, distance_from_selection));
867 }
868 }
869 None => {
870 closest_assist_fallback = Some((assist_id, distance_from_selection))
871 }
872 }
873 }
874 }
875 }
876
877 if let Some((&assist_id, _)) = closest_assist_fallback {
878 self.focus_assist(assist_id, window, cx);
879 }
880 }
881
882 cx.propagate();
883 }
884
885 fn handle_editor_release(
886 &mut self,
887 editor: WeakEntity<Editor>,
888 window: &mut Window,
889 cx: &mut App,
890 ) {
891 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor) {
892 for assist_id in editor_assists.assist_ids.clone() {
893 self.finish_assist(assist_id, true, window, cx);
894 }
895 }
896 }
897
898 fn handle_editor_change(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
899 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
900 return;
901 };
902 let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() else {
903 return;
904 };
905 let assist = &self.assists[&scroll_lock.assist_id];
906 let Some(decorations) = assist.decorations.as_ref() else {
907 return;
908 };
909
910 editor.update(cx, |editor, cx| {
911 let scroll_position = editor.scroll_position(cx);
912 let target_scroll_top = editor
913 .row_for_block(decorations.prompt_block_id, cx)?
914 .as_f64()
915 - scroll_lock.distance_from_top;
916 if target_scroll_top != scroll_position.y {
917 editor.set_scroll_position(point(scroll_position.x, target_scroll_top), window, cx);
918 }
919 Some(())
920 });
921 }
922
923 fn handle_editor_event(
924 &mut self,
925 editor: Entity<Editor>,
926 event: &EditorEvent,
927 window: &mut Window,
928 cx: &mut App,
929 ) {
930 let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) else {
931 return;
932 };
933
934 match event {
935 EditorEvent::Edited { transaction_id } => {
936 let buffer = editor.read(cx).buffer().read(cx);
937 let edited_ranges =
938 buffer.edited_ranges_for_transaction::<usize>(*transaction_id, cx);
939 let snapshot = buffer.snapshot(cx);
940
941 for assist_id in editor_assists.assist_ids.clone() {
942 let assist = &self.assists[&assist_id];
943 if matches!(
944 assist.codegen.read(cx).status(cx),
945 CodegenStatus::Error(_) | CodegenStatus::Done
946 ) {
947 let assist_range = assist.range.to_offset(&snapshot);
948 if edited_ranges
949 .iter()
950 .any(|range| range.overlaps(&assist_range))
951 {
952 self.finish_assist(assist_id, false, window, cx);
953 }
954 }
955 }
956 }
957 EditorEvent::ScrollPositionChanged { .. } => {
958 if let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() {
959 let assist = &self.assists[&scroll_lock.assist_id];
960 if let Some(decorations) = assist.decorations.as_ref() {
961 let distance_from_top = editor.update(cx, |editor, cx| {
962 let scroll_top = editor.scroll_position(cx).y;
963 let prompt_row = editor
964 .row_for_block(decorations.prompt_block_id, cx)?
965 .0 as ScrollOffset;
966 Some(prompt_row - scroll_top)
967 });
968
969 if distance_from_top.is_none_or(|distance_from_top| {
970 distance_from_top != scroll_lock.distance_from_top
971 }) {
972 editor_assists.scroll_lock = None;
973 }
974 }
975 }
976 }
977 EditorEvent::SelectionsChanged { .. } => {
978 for assist_id in editor_assists.assist_ids.clone() {
979 let assist = &self.assists[&assist_id];
980 if let Some(decorations) = assist.decorations.as_ref()
981 && decorations
982 .prompt_editor
983 .focus_handle(cx)
984 .is_focused(window)
985 {
986 return;
987 }
988 }
989
990 editor_assists.scroll_lock = None;
991 }
992 _ => {}
993 }
994 }
995
996 pub fn finish_assist(
997 &mut self,
998 assist_id: InlineAssistId,
999 undo: bool,
1000 window: &mut Window,
1001 cx: &mut App,
1002 ) {
1003 if let Some(assist) = self.assists.get(&assist_id) {
1004 let assist_group_id = assist.group_id;
1005 if self.assist_groups[&assist_group_id].linked {
1006 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
1007 self.finish_assist(assist_id, undo, window, cx);
1008 }
1009 return;
1010 }
1011 }
1012
1013 self.dismiss_assist(assist_id, window, cx);
1014
1015 if let Some(assist) = self.assists.remove(&assist_id) {
1016 if let hash_map::Entry::Occupied(mut entry) = self.assist_groups.entry(assist.group_id)
1017 {
1018 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
1019 if entry.get().assist_ids.is_empty() {
1020 entry.remove();
1021 }
1022 }
1023
1024 if let hash_map::Entry::Occupied(mut entry) =
1025 self.assists_by_editor.entry(assist.editor.clone())
1026 {
1027 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
1028 if entry.get().assist_ids.is_empty() {
1029 entry.remove();
1030 if let Some(editor) = assist.editor.upgrade() {
1031 self.update_editor_highlights(&editor, cx);
1032 }
1033 } else {
1034 entry.get_mut().highlight_updates.send(()).ok();
1035 }
1036 }
1037
1038 let active_alternative = assist.codegen.read(cx).active_alternative().clone();
1039 let message_id = active_alternative.read(cx).message_id.clone();
1040
1041 if let Some(model) = LanguageModelRegistry::read_global(cx).inline_assistant_model() {
1042 let language_name = assist.editor.upgrade().and_then(|editor| {
1043 let multibuffer = editor.read(cx).buffer().read(cx);
1044 let snapshot = multibuffer.snapshot(cx);
1045 let ranges = snapshot.range_to_buffer_ranges(assist.range.clone());
1046 ranges
1047 .first()
1048 .and_then(|(buffer, _, _)| buffer.language())
1049 .map(|language| language.name())
1050 });
1051 report_assistant_event(
1052 AssistantEventData {
1053 conversation_id: None,
1054 kind: AssistantKind::Inline,
1055 message_id,
1056 phase: if undo {
1057 AssistantPhase::Rejected
1058 } else {
1059 AssistantPhase::Accepted
1060 },
1061 model: model.model.telemetry_id(),
1062 model_provider: model.model.provider_id().to_string(),
1063 response_latency: None,
1064 error_message: None,
1065 language_name: language_name.map(|name| name.to_proto()),
1066 },
1067 Some(self.telemetry.clone()),
1068 cx.http_client(),
1069 model.model.api_key(cx),
1070 cx.background_executor(),
1071 );
1072 }
1073
1074 if undo {
1075 assist.codegen.update(cx, |codegen, cx| codegen.undo(cx));
1076 } else {
1077 self.confirmed_assists.insert(assist_id, active_alternative);
1078 }
1079 }
1080 }
1081
1082 fn dismiss_assist(
1083 &mut self,
1084 assist_id: InlineAssistId,
1085 window: &mut Window,
1086 cx: &mut App,
1087 ) -> bool {
1088 let Some(assist) = self.assists.get_mut(&assist_id) else {
1089 return false;
1090 };
1091 let Some(editor) = assist.editor.upgrade() else {
1092 return false;
1093 };
1094 let Some(decorations) = assist.decorations.take() else {
1095 return false;
1096 };
1097
1098 editor.update(cx, |editor, cx| {
1099 let mut to_remove = decorations.removed_line_block_ids;
1100 to_remove.insert(decorations.prompt_block_id);
1101 to_remove.insert(decorations.end_block_id);
1102 editor.remove_blocks(to_remove, None, cx);
1103 });
1104
1105 if decorations
1106 .prompt_editor
1107 .focus_handle(cx)
1108 .contains_focused(window, cx)
1109 {
1110 self.focus_next_assist(assist_id, window, cx);
1111 }
1112
1113 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) {
1114 if editor_assists
1115 .scroll_lock
1116 .as_ref()
1117 .is_some_and(|lock| lock.assist_id == assist_id)
1118 {
1119 editor_assists.scroll_lock = None;
1120 }
1121 editor_assists.highlight_updates.send(()).ok();
1122 }
1123
1124 true
1125 }
1126
1127 fn focus_next_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1128 let Some(assist) = self.assists.get(&assist_id) else {
1129 return;
1130 };
1131
1132 let assist_group = &self.assist_groups[&assist.group_id];
1133 let assist_ix = assist_group
1134 .assist_ids
1135 .iter()
1136 .position(|id| *id == assist_id)
1137 .unwrap();
1138 let assist_ids = assist_group
1139 .assist_ids
1140 .iter()
1141 .skip(assist_ix + 1)
1142 .chain(assist_group.assist_ids.iter().take(assist_ix));
1143
1144 for assist_id in assist_ids {
1145 let assist = &self.assists[assist_id];
1146 if assist.decorations.is_some() {
1147 self.focus_assist(*assist_id, window, cx);
1148 return;
1149 }
1150 }
1151
1152 assist
1153 .editor
1154 .update(cx, |editor, cx| window.focus(&editor.focus_handle(cx)))
1155 .ok();
1156 }
1157
1158 fn focus_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1159 let Some(assist) = self.assists.get(&assist_id) else {
1160 return;
1161 };
1162
1163 if let Some(decorations) = assist.decorations.as_ref() {
1164 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
1165 prompt_editor.editor.update(cx, |editor, cx| {
1166 window.focus(&editor.focus_handle(cx));
1167 editor.select_all(&SelectAll, window, cx);
1168 })
1169 });
1170 }
1171
1172 self.scroll_to_assist(assist_id, window, cx);
1173 }
1174
1175 pub fn scroll_to_assist(
1176 &mut self,
1177 assist_id: InlineAssistId,
1178 window: &mut Window,
1179 cx: &mut App,
1180 ) {
1181 let Some(assist) = self.assists.get(&assist_id) else {
1182 return;
1183 };
1184 let Some(editor) = assist.editor.upgrade() else {
1185 return;
1186 };
1187
1188 let position = assist.range.start;
1189 editor.update(cx, |editor, cx| {
1190 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |selections| {
1191 selections.select_anchor_ranges([position..position])
1192 });
1193
1194 let mut scroll_target_range = None;
1195 if let Some(decorations) = assist.decorations.as_ref() {
1196 scroll_target_range = maybe!({
1197 let top = editor.row_for_block(decorations.prompt_block_id, cx)?.0 as f64;
1198 let bottom = editor.row_for_block(decorations.end_block_id, cx)?.0 as f64;
1199 Some((top, bottom))
1200 });
1201 if scroll_target_range.is_none() {
1202 log::error!("bug: failed to find blocks for scrolling to inline assist");
1203 }
1204 }
1205 let scroll_target_range = scroll_target_range.unwrap_or_else(|| {
1206 let snapshot = editor.snapshot(window, cx);
1207 let start_row = assist
1208 .range
1209 .start
1210 .to_display_point(&snapshot.display_snapshot)
1211 .row();
1212 let top = start_row.0 as ScrollOffset;
1213 let bottom = top + 1.0;
1214 (top, bottom)
1215 });
1216 let mut scroll_target_top = scroll_target_range.0;
1217 let mut scroll_target_bottom = scroll_target_range.1;
1218
1219 scroll_target_top -= editor.vertical_scroll_margin() as ScrollOffset;
1220 scroll_target_bottom += editor.vertical_scroll_margin() as ScrollOffset;
1221
1222 let height_in_lines = editor.visible_line_count().unwrap_or(0.);
1223 let scroll_top = editor.scroll_position(cx).y;
1224 let scroll_bottom = scroll_top + height_in_lines;
1225
1226 if scroll_target_top < scroll_top {
1227 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1228 } else if scroll_target_bottom > scroll_bottom {
1229 if (scroll_target_bottom - scroll_target_top) <= height_in_lines {
1230 editor.set_scroll_position(
1231 point(0., scroll_target_bottom - height_in_lines),
1232 window,
1233 cx,
1234 );
1235 } else {
1236 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1237 }
1238 }
1239 });
1240 }
1241
1242 fn unlink_assist_group(
1243 &mut self,
1244 assist_group_id: InlineAssistGroupId,
1245 window: &mut Window,
1246 cx: &mut App,
1247 ) -> Vec<InlineAssistId> {
1248 let assist_group = self.assist_groups.get_mut(&assist_group_id).unwrap();
1249 assist_group.linked = false;
1250
1251 for assist_id in &assist_group.assist_ids {
1252 let assist = self.assists.get_mut(assist_id).unwrap();
1253 if let Some(editor_decorations) = assist.decorations.as_ref() {
1254 editor_decorations
1255 .prompt_editor
1256 .update(cx, |prompt_editor, cx| prompt_editor.unlink(window, cx));
1257 }
1258 }
1259 assist_group.assist_ids.clone()
1260 }
1261
1262 pub fn start_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1263 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1264 assist
1265 } else {
1266 return;
1267 };
1268
1269 let assist_group_id = assist.group_id;
1270 if self.assist_groups[&assist_group_id].linked {
1271 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
1272 self.start_assist(assist_id, window, cx);
1273 }
1274 return;
1275 }
1276
1277 let Some(user_prompt) = assist.user_prompt(cx) else {
1278 return;
1279 };
1280
1281 self.prompt_history.retain(|prompt| *prompt != user_prompt);
1282 self.prompt_history.push_back(user_prompt.clone());
1283 if self.prompt_history.len() > PROMPT_HISTORY_MAX_LEN {
1284 self.prompt_history.pop_front();
1285 }
1286
1287 let Some(ConfiguredModel { model, .. }) =
1288 LanguageModelRegistry::read_global(cx).inline_assistant_model()
1289 else {
1290 return;
1291 };
1292
1293 assist
1294 .codegen
1295 .update(cx, |codegen, cx| codegen.start(model, user_prompt, cx))
1296 .log_err();
1297 }
1298
1299 pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut App) {
1300 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1301 assist
1302 } else {
1303 return;
1304 };
1305
1306 assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
1307 }
1308
1309 fn update_editor_highlights(&self, editor: &Entity<Editor>, cx: &mut App) {
1310 let mut gutter_pending_ranges = Vec::new();
1311 let mut gutter_transformed_ranges = Vec::new();
1312 let mut foreground_ranges = Vec::new();
1313 let mut inserted_row_ranges = Vec::new();
1314 let empty_assist_ids = Vec::new();
1315 let assist_ids = self
1316 .assists_by_editor
1317 .get(&editor.downgrade())
1318 .map_or(&empty_assist_ids, |editor_assists| {
1319 &editor_assists.assist_ids
1320 });
1321
1322 for assist_id in assist_ids {
1323 if let Some(assist) = self.assists.get(assist_id) {
1324 let codegen = assist.codegen.read(cx);
1325 let buffer = codegen.buffer(cx).read(cx).read(cx);
1326 foreground_ranges.extend(codegen.last_equal_ranges(cx).iter().cloned());
1327
1328 let pending_range =
1329 codegen.edit_position(cx).unwrap_or(assist.range.start)..assist.range.end;
1330 if pending_range.end.to_offset(&buffer) > pending_range.start.to_offset(&buffer) {
1331 gutter_pending_ranges.push(pending_range);
1332 }
1333
1334 if let Some(edit_position) = codegen.edit_position(cx) {
1335 let edited_range = assist.range.start..edit_position;
1336 if edited_range.end.to_offset(&buffer) > edited_range.start.to_offset(&buffer) {
1337 gutter_transformed_ranges.push(edited_range);
1338 }
1339 }
1340
1341 if assist.decorations.is_some() {
1342 inserted_row_ranges
1343 .extend(codegen.diff(cx).inserted_row_ranges.iter().cloned());
1344 }
1345 }
1346 }
1347
1348 let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
1349 merge_ranges(&mut foreground_ranges, &snapshot);
1350 merge_ranges(&mut gutter_pending_ranges, &snapshot);
1351 merge_ranges(&mut gutter_transformed_ranges, &snapshot);
1352 editor.update(cx, |editor, cx| {
1353 enum GutterPendingRange {}
1354 if gutter_pending_ranges.is_empty() {
1355 editor.clear_gutter_highlights::<GutterPendingRange>(cx);
1356 } else {
1357 editor.highlight_gutter::<GutterPendingRange>(
1358 gutter_pending_ranges,
1359 |cx| cx.theme().status().info_background,
1360 cx,
1361 )
1362 }
1363
1364 enum GutterTransformedRange {}
1365 if gutter_transformed_ranges.is_empty() {
1366 editor.clear_gutter_highlights::<GutterTransformedRange>(cx);
1367 } else {
1368 editor.highlight_gutter::<GutterTransformedRange>(
1369 gutter_transformed_ranges,
1370 |cx| cx.theme().status().info,
1371 cx,
1372 )
1373 }
1374
1375 if foreground_ranges.is_empty() {
1376 editor.clear_highlights::<InlineAssist>(cx);
1377 } else {
1378 editor.highlight_text::<InlineAssist>(
1379 foreground_ranges,
1380 HighlightStyle {
1381 fade_out: Some(0.6),
1382 ..Default::default()
1383 },
1384 cx,
1385 );
1386 }
1387
1388 editor.clear_row_highlights::<InlineAssist>();
1389 for row_range in inserted_row_ranges {
1390 editor.highlight_rows::<InlineAssist>(
1391 row_range,
1392 cx.theme().status().info_background,
1393 Default::default(),
1394 cx,
1395 );
1396 }
1397 });
1398 }
1399
1400 fn update_editor_blocks(
1401 &mut self,
1402 editor: &Entity<Editor>,
1403 assist_id: InlineAssistId,
1404 window: &mut Window,
1405 cx: &mut App,
1406 ) {
1407 let Some(assist) = self.assists.get_mut(&assist_id) else {
1408 return;
1409 };
1410 let Some(decorations) = assist.decorations.as_mut() else {
1411 return;
1412 };
1413
1414 let codegen = assist.codegen.read(cx);
1415 let old_snapshot = codegen.snapshot(cx);
1416 let old_buffer = codegen.old_buffer(cx);
1417 let deleted_row_ranges = codegen.diff(cx).deleted_row_ranges.clone();
1418
1419 editor.update(cx, |editor, cx| {
1420 let old_blocks = mem::take(&mut decorations.removed_line_block_ids);
1421 editor.remove_blocks(old_blocks, None, cx);
1422
1423 let mut new_blocks = Vec::new();
1424 for (new_row, old_row_range) in deleted_row_ranges {
1425 let (_, buffer_start) = old_snapshot
1426 .point_to_buffer_offset(Point::new(*old_row_range.start(), 0))
1427 .unwrap();
1428 let (_, buffer_end) = old_snapshot
1429 .point_to_buffer_offset(Point::new(
1430 *old_row_range.end(),
1431 old_snapshot.line_len(MultiBufferRow(*old_row_range.end())),
1432 ))
1433 .unwrap();
1434
1435 let deleted_lines_editor = cx.new(|cx| {
1436 let multi_buffer =
1437 cx.new(|_| MultiBuffer::without_headers(language::Capability::ReadOnly));
1438 multi_buffer.update(cx, |multi_buffer, cx| {
1439 multi_buffer.push_excerpts(
1440 old_buffer.clone(),
1441 Some(ExcerptRange::new(buffer_start..buffer_end)),
1442 cx,
1443 );
1444 });
1445
1446 enum DeletedLines {}
1447 let mut editor = Editor::for_multibuffer(multi_buffer, None, window, cx);
1448 editor.disable_scrollbars_and_minimap(window, cx);
1449 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::None, cx);
1450 editor.set_show_wrap_guides(false, cx);
1451 editor.set_show_gutter(false, cx);
1452 editor.scroll_manager.set_forbid_vertical_scroll(true);
1453 editor.set_read_only(true);
1454 editor.set_show_edit_predictions(Some(false), window, cx);
1455 editor.highlight_rows::<DeletedLines>(
1456 Anchor::min()..Anchor::max(),
1457 cx.theme().status().deleted_background,
1458 Default::default(),
1459 cx,
1460 );
1461 editor
1462 });
1463
1464 let height =
1465 deleted_lines_editor.update(cx, |editor, cx| editor.max_point(cx).row().0 + 1);
1466 new_blocks.push(BlockProperties {
1467 placement: BlockPlacement::Above(new_row),
1468 height: Some(height),
1469 style: BlockStyle::Flex,
1470 render: Arc::new(move |cx| {
1471 div()
1472 .block_mouse_except_scroll()
1473 .bg(cx.theme().status().deleted_background)
1474 .size_full()
1475 .h(height as f32 * cx.window.line_height())
1476 .pl(cx.margins.gutter.full_width())
1477 .child(deleted_lines_editor.clone())
1478 .into_any_element()
1479 }),
1480 priority: 0,
1481 });
1482 }
1483
1484 decorations.removed_line_block_ids = editor
1485 .insert_blocks(new_blocks, None, cx)
1486 .into_iter()
1487 .collect();
1488 })
1489 }
1490
1491 fn resolve_inline_assist_target(
1492 workspace: &mut Workspace,
1493 agent_panel: Option<Entity<AgentPanel>>,
1494 window: &mut Window,
1495 cx: &mut App,
1496 ) -> Option<InlineAssistTarget> {
1497 if let Some(terminal_panel) = workspace.panel::<TerminalPanel>(cx)
1498 && terminal_panel
1499 .read(cx)
1500 .focus_handle(cx)
1501 .contains_focused(window, cx)
1502 && let Some(terminal_view) = terminal_panel.read(cx).pane().and_then(|pane| {
1503 pane.read(cx)
1504 .active_item()
1505 .and_then(|t| t.downcast::<TerminalView>())
1506 })
1507 {
1508 return Some(InlineAssistTarget::Terminal(terminal_view));
1509 }
1510
1511 let text_thread_editor = agent_panel
1512 .and_then(|panel| panel.read(cx).active_text_thread_editor())
1513 .and_then(|editor| {
1514 let editor = &editor.read(cx).editor().clone();
1515 if editor.read(cx).is_focused(window) {
1516 Some(editor.clone())
1517 } else {
1518 None
1519 }
1520 });
1521
1522 if let Some(text_thread_editor) = text_thread_editor {
1523 Some(InlineAssistTarget::Editor(text_thread_editor))
1524 } else if let Some(workspace_editor) = workspace
1525 .active_item(cx)
1526 .and_then(|item| item.act_as::<Editor>(cx))
1527 {
1528 Some(InlineAssistTarget::Editor(workspace_editor))
1529 } else {
1530 workspace
1531 .active_item(cx)
1532 .and_then(|item| item.act_as::<TerminalView>(cx))
1533 .map(InlineAssistTarget::Terminal)
1534 }
1535 }
1536}
1537
1538struct EditorInlineAssists {
1539 assist_ids: Vec<InlineAssistId>,
1540 scroll_lock: Option<InlineAssistScrollLock>,
1541 highlight_updates: watch::Sender<()>,
1542 _update_highlights: Task<Result<()>>,
1543 _subscriptions: Vec<gpui::Subscription>,
1544}
1545
1546struct InlineAssistScrollLock {
1547 assist_id: InlineAssistId,
1548 distance_from_top: ScrollOffset,
1549}
1550
1551impl EditorInlineAssists {
1552 fn new(editor: &Entity<Editor>, window: &mut Window, cx: &mut App) -> Self {
1553 let (highlight_updates_tx, mut highlight_updates_rx) = watch::channel(());
1554 Self {
1555 assist_ids: Vec::new(),
1556 scroll_lock: None,
1557 highlight_updates: highlight_updates_tx,
1558 _update_highlights: cx.spawn({
1559 let editor = editor.downgrade();
1560 async move |cx| {
1561 while let Ok(()) = highlight_updates_rx.changed().await {
1562 let editor = editor.upgrade().context("editor was dropped")?;
1563 cx.update_global(|assistant: &mut InlineAssistant, cx| {
1564 assistant.update_editor_highlights(&editor, cx);
1565 })?;
1566 }
1567 Ok(())
1568 }
1569 }),
1570 _subscriptions: vec![
1571 cx.observe_release_in(editor, window, {
1572 let editor = editor.downgrade();
1573 |_, window, cx| {
1574 InlineAssistant::update_global(cx, |this, cx| {
1575 this.handle_editor_release(editor, window, cx);
1576 })
1577 }
1578 }),
1579 window.observe(editor, cx, move |editor, window, cx| {
1580 InlineAssistant::update_global(cx, |this, cx| {
1581 this.handle_editor_change(editor, window, cx)
1582 })
1583 }),
1584 window.subscribe(editor, cx, move |editor, event, window, cx| {
1585 InlineAssistant::update_global(cx, |this, cx| {
1586 this.handle_editor_event(editor, event, window, cx)
1587 })
1588 }),
1589 editor.update(cx, |editor, cx| {
1590 let editor_handle = cx.entity().downgrade();
1591 editor.register_action(move |_: &editor::actions::Newline, window, cx| {
1592 InlineAssistant::update_global(cx, |this, cx| {
1593 if let Some(editor) = editor_handle.upgrade() {
1594 this.handle_editor_newline(editor, window, cx)
1595 }
1596 })
1597 })
1598 }),
1599 editor.update(cx, |editor, cx| {
1600 let editor_handle = cx.entity().downgrade();
1601 editor.register_action(move |_: &editor::actions::Cancel, window, cx| {
1602 InlineAssistant::update_global(cx, |this, cx| {
1603 if let Some(editor) = editor_handle.upgrade() {
1604 this.handle_editor_cancel(editor, window, cx)
1605 }
1606 })
1607 })
1608 }),
1609 ],
1610 }
1611 }
1612}
1613
1614struct InlineAssistGroup {
1615 assist_ids: Vec<InlineAssistId>,
1616 linked: bool,
1617 active_assist_id: Option<InlineAssistId>,
1618}
1619
1620impl InlineAssistGroup {
1621 fn new() -> Self {
1622 Self {
1623 assist_ids: Vec::new(),
1624 linked: true,
1625 active_assist_id: None,
1626 }
1627 }
1628}
1629
1630fn build_assist_editor_renderer(editor: &Entity<PromptEditor<BufferCodegen>>) -> RenderBlock {
1631 let editor = editor.clone();
1632
1633 Arc::new(move |cx: &mut BlockContext| {
1634 let editor_margins = editor.read(cx).editor_margins();
1635
1636 *editor_margins.lock() = *cx.margins;
1637 editor.clone().into_any_element()
1638 })
1639}
1640
1641#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1642struct InlineAssistGroupId(usize);
1643
1644impl InlineAssistGroupId {
1645 fn post_inc(&mut self) -> InlineAssistGroupId {
1646 let id = *self;
1647 self.0 += 1;
1648 id
1649 }
1650}
1651
1652pub struct InlineAssist {
1653 group_id: InlineAssistGroupId,
1654 range: Range<Anchor>,
1655 editor: WeakEntity<Editor>,
1656 decorations: Option<InlineAssistDecorations>,
1657 codegen: Entity<BufferCodegen>,
1658 _subscriptions: Vec<Subscription>,
1659 workspace: WeakEntity<Workspace>,
1660}
1661
1662impl InlineAssist {
1663 fn new(
1664 assist_id: InlineAssistId,
1665 group_id: InlineAssistGroupId,
1666 editor: &Entity<Editor>,
1667 prompt_editor: &Entity<PromptEditor<BufferCodegen>>,
1668 prompt_block_id: CustomBlockId,
1669 end_block_id: CustomBlockId,
1670 range: Range<Anchor>,
1671 codegen: Entity<BufferCodegen>,
1672 workspace: WeakEntity<Workspace>,
1673 window: &mut Window,
1674 cx: &mut App,
1675 ) -> Self {
1676 let prompt_editor_focus_handle = prompt_editor.focus_handle(cx);
1677 InlineAssist {
1678 group_id,
1679 editor: editor.downgrade(),
1680 decorations: Some(InlineAssistDecorations {
1681 prompt_block_id,
1682 prompt_editor: prompt_editor.clone(),
1683 removed_line_block_ids: HashSet::default(),
1684 end_block_id,
1685 }),
1686 range,
1687 codegen: codegen.clone(),
1688 workspace,
1689 _subscriptions: vec![
1690 window.on_focus_in(&prompt_editor_focus_handle, cx, move |_, cx| {
1691 InlineAssistant::update_global(cx, |this, cx| {
1692 this.handle_prompt_editor_focus_in(assist_id, cx)
1693 })
1694 }),
1695 window.on_focus_out(&prompt_editor_focus_handle, cx, move |_, _, cx| {
1696 InlineAssistant::update_global(cx, |this, cx| {
1697 this.handle_prompt_editor_focus_out(assist_id, cx)
1698 })
1699 }),
1700 window.subscribe(prompt_editor, cx, |prompt_editor, event, window, cx| {
1701 InlineAssistant::update_global(cx, |this, cx| {
1702 this.handle_prompt_editor_event(prompt_editor, event, window, cx)
1703 })
1704 }),
1705 window.observe(&codegen, cx, {
1706 let editor = editor.downgrade();
1707 move |_, window, cx| {
1708 if let Some(editor) = editor.upgrade() {
1709 InlineAssistant::update_global(cx, |this, cx| {
1710 if let Some(editor_assists) =
1711 this.assists_by_editor.get_mut(&editor.downgrade())
1712 {
1713 editor_assists.highlight_updates.send(()).ok();
1714 }
1715
1716 this.update_editor_blocks(&editor, assist_id, window, cx);
1717 })
1718 }
1719 }
1720 }),
1721 window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
1722 InlineAssistant::update_global(cx, |this, cx| match event {
1723 CodegenEvent::Undone => this.finish_assist(assist_id, false, window, cx),
1724 CodegenEvent::Finished => {
1725 let assist = if let Some(assist) = this.assists.get(&assist_id) {
1726 assist
1727 } else {
1728 return;
1729 };
1730
1731 if let CodegenStatus::Error(error) = codegen.read(cx).status(cx)
1732 && assist.decorations.is_none()
1733 && let Some(workspace) = assist.workspace.upgrade()
1734 {
1735 let error = format!("Inline assistant error: {}", error);
1736 workspace.update(cx, |workspace, cx| {
1737 struct InlineAssistantError;
1738
1739 let id = NotificationId::composite::<InlineAssistantError>(
1740 assist_id.0,
1741 );
1742
1743 workspace.show_toast(Toast::new(id, error), cx);
1744 })
1745 }
1746
1747 if assist.decorations.is_none() {
1748 this.finish_assist(assist_id, false, window, cx);
1749 }
1750 }
1751 })
1752 }),
1753 ],
1754 }
1755 }
1756
1757 fn user_prompt(&self, cx: &App) -> Option<String> {
1758 let decorations = self.decorations.as_ref()?;
1759 Some(decorations.prompt_editor.read(cx).prompt(cx))
1760 }
1761}
1762
1763struct InlineAssistDecorations {
1764 prompt_block_id: CustomBlockId,
1765 prompt_editor: Entity<PromptEditor<BufferCodegen>>,
1766 removed_line_block_ids: HashSet<CustomBlockId>,
1767 end_block_id: CustomBlockId,
1768}
1769
1770struct AssistantCodeActionProvider {
1771 editor: WeakEntity<Editor>,
1772 workspace: WeakEntity<Workspace>,
1773 thread_store: Option<WeakEntity<HistoryStore>>,
1774}
1775
1776const ASSISTANT_CODE_ACTION_PROVIDER_ID: &str = "assistant2";
1777
1778impl CodeActionProvider for AssistantCodeActionProvider {
1779 fn id(&self) -> Arc<str> {
1780 ASSISTANT_CODE_ACTION_PROVIDER_ID.into()
1781 }
1782
1783 fn code_actions(
1784 &self,
1785 buffer: &Entity<Buffer>,
1786 range: Range<text::Anchor>,
1787 _: &mut Window,
1788 cx: &mut App,
1789 ) -> Task<Result<Vec<CodeAction>>> {
1790 if !AgentSettings::get_global(cx).enabled(cx) {
1791 return Task::ready(Ok(Vec::new()));
1792 }
1793
1794 let snapshot = buffer.read(cx).snapshot();
1795 let mut range = range.to_point(&snapshot);
1796
1797 // Expand the range to line boundaries.
1798 range.start.column = 0;
1799 range.end.column = snapshot.line_len(range.end.row);
1800
1801 let mut has_diagnostics = false;
1802 for diagnostic in snapshot.diagnostics_in_range::<_, Point>(range.clone(), false) {
1803 range.start = cmp::min(range.start, diagnostic.range.start);
1804 range.end = cmp::max(range.end, diagnostic.range.end);
1805 has_diagnostics = true;
1806 }
1807 if has_diagnostics {
1808 let symbols_containing_start = snapshot.symbols_containing(range.start, None);
1809 if let Some(symbol) = symbols_containing_start.last() {
1810 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
1811 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
1812 }
1813 let symbols_containing_end = snapshot.symbols_containing(range.end, None);
1814 if let Some(symbol) = symbols_containing_end.last() {
1815 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
1816 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
1817 }
1818
1819 Task::ready(Ok(vec![CodeAction {
1820 server_id: language::LanguageServerId(0),
1821 range: snapshot.anchor_before(range.start)..snapshot.anchor_after(range.end),
1822 lsp_action: LspAction::Action(Box::new(lsp::CodeAction {
1823 title: "Fix with Assistant".into(),
1824 ..Default::default()
1825 })),
1826 resolved: true,
1827 }]))
1828 } else {
1829 Task::ready(Ok(Vec::new()))
1830 }
1831 }
1832
1833 fn apply_code_action(
1834 &self,
1835 buffer: Entity<Buffer>,
1836 action: CodeAction,
1837 excerpt_id: ExcerptId,
1838 _push_to_history: bool,
1839 window: &mut Window,
1840 cx: &mut App,
1841 ) -> Task<Result<ProjectTransaction>> {
1842 let editor = self.editor.clone();
1843 let workspace = self.workspace.clone();
1844 let thread_store = self.thread_store.clone();
1845 let prompt_store = PromptStore::global(cx);
1846 window.spawn(cx, async move |cx| {
1847 let workspace = workspace.upgrade().context("workspace was released")?;
1848 let editor = editor.upgrade().context("editor was released")?;
1849 let range = editor
1850 .update(cx, |editor, cx| {
1851 editor.buffer().update(cx, |multibuffer, cx| {
1852 let buffer = buffer.read(cx);
1853 let multibuffer_snapshot = multibuffer.read(cx);
1854
1855 let old_context_range =
1856 multibuffer_snapshot.context_range_for_excerpt(excerpt_id)?;
1857 let mut new_context_range = old_context_range.clone();
1858 if action
1859 .range
1860 .start
1861 .cmp(&old_context_range.start, buffer)
1862 .is_lt()
1863 {
1864 new_context_range.start = action.range.start;
1865 }
1866 if action.range.end.cmp(&old_context_range.end, buffer).is_gt() {
1867 new_context_range.end = action.range.end;
1868 }
1869 drop(multibuffer_snapshot);
1870
1871 if new_context_range != old_context_range {
1872 multibuffer.resize_excerpt(excerpt_id, new_context_range, cx);
1873 }
1874
1875 let multibuffer_snapshot = multibuffer.read(cx);
1876 multibuffer_snapshot.anchor_range_in_excerpt(excerpt_id, action.range)
1877 })
1878 })?
1879 .context("invalid range")?;
1880
1881 let prompt_store = prompt_store.await.ok();
1882 cx.update_global(|assistant: &mut InlineAssistant, window, cx| {
1883 let assist_id = assistant.suggest_assist(
1884 &editor,
1885 range,
1886 "Fix Diagnostics".into(),
1887 None,
1888 true,
1889 workspace,
1890 prompt_store,
1891 thread_store,
1892 window,
1893 cx,
1894 );
1895 assistant.start_assist(assist_id, window, cx);
1896 })?;
1897
1898 Ok(ProjectTransaction::default())
1899 })
1900 }
1901}
1902
1903fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
1904 ranges.sort_unstable_by(|a, b| {
1905 a.start
1906 .cmp(&b.start, buffer)
1907 .then_with(|| b.end.cmp(&a.end, buffer))
1908 });
1909
1910 let mut ix = 0;
1911 while ix + 1 < ranges.len() {
1912 let b = ranges[ix + 1].clone();
1913 let a = &mut ranges[ix];
1914 if a.end.cmp(&b.start, buffer).is_gt() {
1915 if a.end.cmp(&b.end, buffer).is_lt() {
1916 a.end = b.end;
1917 }
1918 ranges.remove(ix + 1);
1919 } else {
1920 ix += 1;
1921 }
1922 }
1923}