1use std::cmp;
2use std::mem;
3use std::ops::Range;
4use std::rc::Rc;
5use std::sync::Arc;
6
7use anyhow::{Context as _, Result};
8use assistant_settings::AssistantSettings;
9use client::telemetry::Telemetry;
10use collections::{HashMap, HashSet, VecDeque, hash_map};
11use editor::{
12 Anchor, AnchorRangeExt, CodeActionProvider, Editor, EditorEvent, ExcerptId, ExcerptRange,
13 GutterDimensions, MultiBuffer, MultiBufferSnapshot, ToOffset as _, ToPoint,
14 actions::SelectAll,
15 display_map::{
16 BlockContext, BlockPlacement, BlockProperties, BlockStyle, CustomBlockId, RenderBlock,
17 ToDisplayPoint,
18 },
19};
20use feature_flags::{Assistant2FeatureFlag, FeatureFlagViewExt as _};
21use fs::Fs;
22use gpui::{
23 App, Context, Entity, Focusable, Global, HighlightStyle, Subscription, Task, UpdateGlobal,
24 WeakEntity, Window, point,
25};
26use language::{Buffer, Point, Selection, TransactionId};
27use language_model::{LanguageModelRegistry, report_assistant_event};
28use multi_buffer::MultiBufferRow;
29use parking_lot::Mutex;
30use project::LspAction;
31use project::{CodeAction, ProjectTransaction};
32use prompt_store::PromptBuilder;
33use settings::{Settings, SettingsStore};
34use telemetry_events::{AssistantEvent, AssistantKind, AssistantPhase};
35use terminal_view::{TerminalView, terminal_panel::TerminalPanel};
36use text::{OffsetRangeExt, ToPoint as _};
37use ui::prelude::*;
38use util::RangeExt;
39use util::ResultExt;
40use workspace::{ItemHandle, Toast, Workspace, notifications::NotificationId};
41use workspace::{ShowConfiguration, dock::Panel};
42
43use crate::AssistantPanel;
44use crate::buffer_codegen::{BufferCodegen, CodegenAlternative, CodegenEvent};
45use crate::context_store::ContextStore;
46use crate::inline_prompt_editor::{CodegenStatus, InlineAssistId, PromptEditor, PromptEditorEvent};
47use crate::terminal_inline_assistant::TerminalInlineAssistant;
48use crate::thread_store::ThreadStore;
49
50pub fn init(
51 fs: Arc<dyn Fs>,
52 prompt_builder: Arc<PromptBuilder>,
53 telemetry: Arc<Telemetry>,
54 cx: &mut App,
55) {
56 cx.set_global(InlineAssistant::new(fs, prompt_builder, telemetry));
57 cx.observe_new(|_workspace: &mut Workspace, window, cx| {
58 let Some(window) = window else {
59 return;
60 };
61 let workspace = cx.entity().clone();
62 InlineAssistant::update_global(cx, |inline_assistant, cx| {
63 inline_assistant.register_workspace(&workspace, window, cx)
64 });
65
66 cx.observe_flag::<Assistant2FeatureFlag, _>(window, {
67 |is_assistant2_enabled, _workspace, _window, cx| {
68 InlineAssistant::update_global(cx, |inline_assistant, _cx| {
69 inline_assistant.is_assistant2_enabled = is_assistant2_enabled;
70 });
71 }
72 })
73 .detach();
74 })
75 .detach();
76}
77
78const PROMPT_HISTORY_MAX_LEN: usize = 20;
79
80enum InlineAssistTarget {
81 Editor(Entity<Editor>),
82 Terminal(Entity<TerminalView>),
83}
84
85pub struct InlineAssistant {
86 next_assist_id: InlineAssistId,
87 next_assist_group_id: InlineAssistGroupId,
88 assists: HashMap<InlineAssistId, InlineAssist>,
89 assists_by_editor: HashMap<WeakEntity<Editor>, EditorInlineAssists>,
90 assist_groups: HashMap<InlineAssistGroupId, InlineAssistGroup>,
91 confirmed_assists: HashMap<InlineAssistId, Entity<CodegenAlternative>>,
92 prompt_history: VecDeque<String>,
93 prompt_builder: Arc<PromptBuilder>,
94 telemetry: Arc<Telemetry>,
95 fs: Arc<dyn Fs>,
96 is_assistant2_enabled: bool,
97}
98
99impl Global for InlineAssistant {}
100
101impl InlineAssistant {
102 pub fn new(
103 fs: Arc<dyn Fs>,
104 prompt_builder: Arc<PromptBuilder>,
105 telemetry: Arc<Telemetry>,
106 ) -> Self {
107 Self {
108 next_assist_id: InlineAssistId::default(),
109 next_assist_group_id: InlineAssistGroupId::default(),
110 assists: HashMap::default(),
111 assists_by_editor: HashMap::default(),
112 assist_groups: HashMap::default(),
113 confirmed_assists: HashMap::default(),
114 prompt_history: VecDeque::default(),
115 prompt_builder,
116 telemetry,
117 fs,
118 is_assistant2_enabled: false,
119 }
120 }
121
122 pub fn register_workspace(
123 &mut self,
124 workspace: &Entity<Workspace>,
125 window: &mut Window,
126 cx: &mut App,
127 ) {
128 window
129 .subscribe(workspace, cx, |workspace, event, window, cx| {
130 Self::update_global(cx, |this, cx| {
131 this.handle_workspace_event(workspace, event, window, cx)
132 });
133 })
134 .detach();
135
136 let workspace = workspace.downgrade();
137 cx.observe_global::<SettingsStore>(move |cx| {
138 let Some(workspace) = workspace.upgrade() else {
139 return;
140 };
141 let Some(terminal_panel) = workspace.read(cx).panel::<TerminalPanel>(cx) else {
142 return;
143 };
144 let enabled = AssistantSettings::get_global(cx).enabled;
145 terminal_panel.update(cx, |terminal_panel, cx| {
146 terminal_panel.set_assistant_enabled(enabled, cx)
147 });
148 })
149 .detach();
150 }
151
152 fn handle_workspace_event(
153 &mut self,
154 workspace: Entity<Workspace>,
155 event: &workspace::Event,
156 window: &mut Window,
157 cx: &mut App,
158 ) {
159 match event {
160 workspace::Event::UserSavedItem { item, .. } => {
161 // When the user manually saves an editor, automatically accepts all finished transformations.
162 if let Some(editor) = item.upgrade().and_then(|item| item.act_as::<Editor>(cx)) {
163 if let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) {
164 for assist_id in editor_assists.assist_ids.clone() {
165 let assist = &self.assists[&assist_id];
166 if let CodegenStatus::Done = assist.codegen.read(cx).status(cx) {
167 self.finish_assist(assist_id, false, window, cx)
168 }
169 }
170 }
171 }
172 }
173 workspace::Event::ItemAdded { item } => {
174 self.register_workspace_item(&workspace, item.as_ref(), window, cx);
175 }
176 _ => (),
177 }
178 }
179
180 fn register_workspace_item(
181 &mut self,
182 workspace: &Entity<Workspace>,
183 item: &dyn ItemHandle,
184 window: &mut Window,
185 cx: &mut App,
186 ) {
187 let is_assistant2_enabled = self.is_assistant2_enabled;
188
189 if let Some(editor) = item.act_as::<Editor>(cx) {
190 editor.update(cx, |editor, cx| {
191 if is_assistant2_enabled {
192 let thread_store = workspace
193 .read(cx)
194 .panel::<AssistantPanel>(cx)
195 .map(|assistant_panel| assistant_panel.read(cx).thread_store().downgrade());
196
197 editor.add_code_action_provider(
198 Rc::new(AssistantCodeActionProvider {
199 editor: cx.entity().downgrade(),
200 workspace: workspace.downgrade(),
201 thread_store,
202 }),
203 window,
204 cx,
205 );
206
207 // Remove the Assistant1 code action provider, as it still might be registered.
208 editor.remove_code_action_provider("assistant".into(), window, cx);
209 } else {
210 editor.remove_code_action_provider(
211 ASSISTANT_CODE_ACTION_PROVIDER_ID.into(),
212 window,
213 cx,
214 );
215 }
216 });
217 }
218 }
219
220 pub fn inline_assist(
221 workspace: &mut Workspace,
222 _action: &zed_actions::assistant::InlineAssist,
223 window: &mut Window,
224 cx: &mut Context<Workspace>,
225 ) {
226 let settings = AssistantSettings::get_global(cx);
227 if !settings.enabled {
228 return;
229 }
230
231 let Some(inline_assist_target) = Self::resolve_inline_assist_target(
232 workspace,
233 workspace.panel::<AssistantPanel>(cx),
234 window,
235 cx,
236 ) else {
237 return;
238 };
239
240 let is_authenticated = || {
241 LanguageModelRegistry::read_global(cx)
242 .active_provider()
243 .map_or(false, |provider| provider.is_authenticated(cx))
244 };
245
246 let thread_store = workspace
247 .panel::<AssistantPanel>(cx)
248 .map(|assistant_panel| assistant_panel.read(cx).thread_store().downgrade());
249
250 let handle_assist =
251 |window: &mut Window, cx: &mut Context<Workspace>| match inline_assist_target {
252 InlineAssistTarget::Editor(active_editor) => {
253 InlineAssistant::update_global(cx, |assistant, cx| {
254 assistant.assist(
255 &active_editor,
256 cx.entity().downgrade(),
257 thread_store,
258 window,
259 cx,
260 )
261 })
262 }
263 InlineAssistTarget::Terminal(active_terminal) => {
264 TerminalInlineAssistant::update_global(cx, |assistant, cx| {
265 assistant.assist(
266 &active_terminal,
267 cx.entity().downgrade(),
268 thread_store,
269 window,
270 cx,
271 )
272 })
273 }
274 };
275
276 if is_authenticated() {
277 handle_assist(window, cx);
278 } else {
279 cx.spawn_in(window, async move |_workspace, cx| {
280 let Some(task) = cx.update(|_, cx| {
281 LanguageModelRegistry::read_global(cx)
282 .active_provider()
283 .map_or(None, |provider| Some(provider.authenticate(cx)))
284 })?
285 else {
286 let answer = cx
287 .prompt(
288 gpui::PromptLevel::Warning,
289 "No language model provider configured",
290 None,
291 &["Configure", "Cancel"],
292 )
293 .await
294 .ok();
295 if let Some(answer) = answer {
296 if answer == 0 {
297 cx.update(|window, cx| {
298 window.dispatch_action(Box::new(ShowConfiguration), cx)
299 })
300 .ok();
301 }
302 }
303 return Ok(());
304 };
305 task.await?;
306
307 anyhow::Ok(())
308 })
309 .detach_and_log_err(cx);
310
311 if is_authenticated() {
312 handle_assist(window, cx);
313 }
314 }
315 }
316
317 pub fn assist(
318 &mut self,
319 editor: &Entity<Editor>,
320 workspace: WeakEntity<Workspace>,
321 thread_store: Option<WeakEntity<ThreadStore>>,
322 window: &mut Window,
323 cx: &mut App,
324 ) {
325 let (snapshot, initial_selections) = editor.update(cx, |editor, cx| {
326 (
327 editor.snapshot(window, cx),
328 editor.selections.all::<Point>(cx),
329 )
330 });
331
332 let mut selections = Vec::<Selection<Point>>::new();
333 let mut newest_selection = None;
334 for mut selection in initial_selections {
335 if selection.end > selection.start {
336 selection.start.column = 0;
337 // If the selection ends at the start of the line, we don't want to include it.
338 if selection.end.column == 0 {
339 selection.end.row -= 1;
340 }
341 selection.end.column = snapshot
342 .buffer_snapshot
343 .line_len(MultiBufferRow(selection.end.row));
344 } else if let Some(fold) =
345 snapshot.crease_for_buffer_row(MultiBufferRow(selection.end.row))
346 {
347 selection.start = fold.range().start;
348 selection.end = fold.range().end;
349 if MultiBufferRow(selection.end.row) < snapshot.buffer_snapshot.max_row() {
350 let chars = snapshot
351 .buffer_snapshot
352 .chars_at(Point::new(selection.end.row + 1, 0));
353
354 for c in chars {
355 if c == '\n' {
356 break;
357 }
358 if c.is_whitespace() {
359 continue;
360 }
361 if snapshot
362 .language_at(selection.end)
363 .is_some_and(|language| language.config().brackets.is_closing_brace(c))
364 {
365 selection.end.row += 1;
366 selection.end.column = snapshot
367 .buffer_snapshot
368 .line_len(MultiBufferRow(selection.end.row));
369 }
370 }
371 }
372 }
373
374 if let Some(prev_selection) = selections.last_mut() {
375 if selection.start <= prev_selection.end {
376 prev_selection.end = selection.end;
377 continue;
378 }
379 }
380
381 let latest_selection = newest_selection.get_or_insert_with(|| selection.clone());
382 if selection.id > latest_selection.id {
383 *latest_selection = selection.clone();
384 }
385 selections.push(selection);
386 }
387 let snapshot = &snapshot.buffer_snapshot;
388 let newest_selection = newest_selection.unwrap();
389
390 let mut codegen_ranges = Vec::new();
391 for (buffer, buffer_range, excerpt_id) in
392 snapshot.ranges_to_buffer_ranges(selections.iter().map(|selection| {
393 snapshot.anchor_before(selection.start)..snapshot.anchor_after(selection.end)
394 }))
395 {
396 let anchor_range = Anchor::range_in_buffer(
397 excerpt_id,
398 buffer.remote_id(),
399 buffer.anchor_before(buffer_range.start)..buffer.anchor_after(buffer_range.end),
400 );
401
402 codegen_ranges.push(anchor_range);
403
404 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
405 self.telemetry.report_assistant_event(AssistantEvent {
406 conversation_id: None,
407 kind: AssistantKind::Inline,
408 phase: AssistantPhase::Invoked,
409 message_id: None,
410 model: model.telemetry_id(),
411 model_provider: model.provider_id().to_string(),
412 response_latency: None,
413 error_message: None,
414 language_name: buffer.language().map(|language| language.name().to_proto()),
415 });
416 }
417 }
418
419 let assist_group_id = self.next_assist_group_id.post_inc();
420 let prompt_buffer =
421 cx.new(|cx| MultiBuffer::singleton(cx.new(|cx| Buffer::local(String::new(), cx)), cx));
422
423 let mut assists = Vec::new();
424 let mut assist_to_focus = None;
425 for range in codegen_ranges {
426 let assist_id = self.next_assist_id.post_inc();
427 let context_store = cx.new(|_cx| ContextStore::new(workspace.clone()));
428 let codegen = cx.new(|cx| {
429 BufferCodegen::new(
430 editor.read(cx).buffer().clone(),
431 range.clone(),
432 None,
433 context_store.clone(),
434 self.telemetry.clone(),
435 self.prompt_builder.clone(),
436 cx,
437 )
438 });
439
440 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
441 let prompt_editor = cx.new(|cx| {
442 PromptEditor::new_buffer(
443 assist_id,
444 gutter_dimensions.clone(),
445 self.prompt_history.clone(),
446 prompt_buffer.clone(),
447 codegen.clone(),
448 self.fs.clone(),
449 context_store,
450 workspace.clone(),
451 thread_store.clone(),
452 window,
453 cx,
454 )
455 });
456
457 if assist_to_focus.is_none() {
458 let focus_assist = if newest_selection.reversed {
459 range.start.to_point(&snapshot) == newest_selection.start
460 } else {
461 range.end.to_point(&snapshot) == newest_selection.end
462 };
463 if focus_assist {
464 assist_to_focus = Some(assist_id);
465 }
466 }
467
468 let [prompt_block_id, end_block_id] =
469 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
470
471 assists.push((
472 assist_id,
473 range,
474 prompt_editor,
475 prompt_block_id,
476 end_block_id,
477 ));
478 }
479
480 let editor_assists = self
481 .assists_by_editor
482 .entry(editor.downgrade())
483 .or_insert_with(|| EditorInlineAssists::new(&editor, window, cx));
484 let mut assist_group = InlineAssistGroup::new();
485 for (assist_id, range, prompt_editor, prompt_block_id, end_block_id) in assists {
486 let codegen = prompt_editor.read(cx).codegen().clone();
487
488 self.assists.insert(
489 assist_id,
490 InlineAssist::new(
491 assist_id,
492 assist_group_id,
493 editor,
494 &prompt_editor,
495 prompt_block_id,
496 end_block_id,
497 range,
498 codegen,
499 workspace.clone(),
500 window,
501 cx,
502 ),
503 );
504 assist_group.assist_ids.push(assist_id);
505 editor_assists.assist_ids.push(assist_id);
506 }
507 self.assist_groups.insert(assist_group_id, assist_group);
508
509 if let Some(assist_id) = assist_to_focus {
510 self.focus_assist(assist_id, window, cx);
511 }
512 }
513
514 pub fn suggest_assist(
515 &mut self,
516 editor: &Entity<Editor>,
517 mut range: Range<Anchor>,
518 initial_prompt: String,
519 initial_transaction_id: Option<TransactionId>,
520 focus: bool,
521 workspace: WeakEntity<Workspace>,
522 thread_store: Option<WeakEntity<ThreadStore>>,
523 window: &mut Window,
524 cx: &mut App,
525 ) -> InlineAssistId {
526 let assist_group_id = self.next_assist_group_id.post_inc();
527 let prompt_buffer = cx.new(|cx| Buffer::local(&initial_prompt, cx));
528 let prompt_buffer = cx.new(|cx| MultiBuffer::singleton(prompt_buffer, cx));
529
530 let assist_id = self.next_assist_id.post_inc();
531
532 let buffer = editor.read(cx).buffer().clone();
533 {
534 let snapshot = buffer.read(cx).read(cx);
535 range.start = range.start.bias_left(&snapshot);
536 range.end = range.end.bias_right(&snapshot);
537 }
538
539 let context_store = cx.new(|_cx| ContextStore::new(workspace.clone()));
540
541 let codegen = cx.new(|cx| {
542 BufferCodegen::new(
543 editor.read(cx).buffer().clone(),
544 range.clone(),
545 initial_transaction_id,
546 context_store.clone(),
547 self.telemetry.clone(),
548 self.prompt_builder.clone(),
549 cx,
550 )
551 });
552
553 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
554 let prompt_editor = cx.new(|cx| {
555 PromptEditor::new_buffer(
556 assist_id,
557 gutter_dimensions.clone(),
558 self.prompt_history.clone(),
559 prompt_buffer.clone(),
560 codegen.clone(),
561 self.fs.clone(),
562 context_store,
563 workspace.clone(),
564 thread_store,
565 window,
566 cx,
567 )
568 });
569
570 let [prompt_block_id, end_block_id] =
571 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
572
573 let editor_assists = self
574 .assists_by_editor
575 .entry(editor.downgrade())
576 .or_insert_with(|| EditorInlineAssists::new(&editor, window, cx));
577
578 let mut assist_group = InlineAssistGroup::new();
579 self.assists.insert(
580 assist_id,
581 InlineAssist::new(
582 assist_id,
583 assist_group_id,
584 editor,
585 &prompt_editor,
586 prompt_block_id,
587 end_block_id,
588 range,
589 codegen.clone(),
590 workspace.clone(),
591 window,
592 cx,
593 ),
594 );
595 assist_group.assist_ids.push(assist_id);
596 editor_assists.assist_ids.push(assist_id);
597 self.assist_groups.insert(assist_group_id, assist_group);
598
599 if focus {
600 self.focus_assist(assist_id, window, cx);
601 }
602
603 assist_id
604 }
605
606 fn insert_assist_blocks(
607 &self,
608 editor: &Entity<Editor>,
609 range: &Range<Anchor>,
610 prompt_editor: &Entity<PromptEditor<BufferCodegen>>,
611 cx: &mut App,
612 ) -> [CustomBlockId; 2] {
613 let prompt_editor_height = prompt_editor.update(cx, |prompt_editor, cx| {
614 prompt_editor
615 .editor
616 .update(cx, |editor, cx| editor.max_point(cx).row().0 + 1 + 2)
617 });
618 let assist_blocks = vec![
619 BlockProperties {
620 style: BlockStyle::Sticky,
621 placement: BlockPlacement::Above(range.start),
622 height: prompt_editor_height,
623 render: build_assist_editor_renderer(prompt_editor),
624 priority: 0,
625 },
626 BlockProperties {
627 style: BlockStyle::Sticky,
628 placement: BlockPlacement::Below(range.end),
629 height: 0,
630 render: Arc::new(|cx| {
631 v_flex()
632 .h_full()
633 .w_full()
634 .border_t_1()
635 .border_color(cx.theme().status().info_border)
636 .into_any_element()
637 }),
638 priority: 0,
639 },
640 ];
641
642 editor.update(cx, |editor, cx| {
643 let block_ids = editor.insert_blocks(assist_blocks, None, cx);
644 [block_ids[0], block_ids[1]]
645 })
646 }
647
648 fn handle_prompt_editor_focus_in(&mut self, assist_id: InlineAssistId, cx: &mut App) {
649 let assist = &self.assists[&assist_id];
650 let Some(decorations) = assist.decorations.as_ref() else {
651 return;
652 };
653 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
654 let editor_assists = self.assists_by_editor.get_mut(&assist.editor).unwrap();
655
656 assist_group.active_assist_id = Some(assist_id);
657 if assist_group.linked {
658 for assist_id in &assist_group.assist_ids {
659 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
660 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
661 prompt_editor.set_show_cursor_when_unfocused(true, cx)
662 });
663 }
664 }
665 }
666
667 assist
668 .editor
669 .update(cx, |editor, cx| {
670 let scroll_top = editor.scroll_position(cx).y;
671 let scroll_bottom = scroll_top + editor.visible_line_count().unwrap_or(0.);
672 let prompt_row = editor
673 .row_for_block(decorations.prompt_block_id, cx)
674 .unwrap()
675 .0 as f32;
676
677 if (scroll_top..scroll_bottom).contains(&prompt_row) {
678 editor_assists.scroll_lock = Some(InlineAssistScrollLock {
679 assist_id,
680 distance_from_top: prompt_row - scroll_top,
681 });
682 } else {
683 editor_assists.scroll_lock = None;
684 }
685 })
686 .ok();
687 }
688
689 fn handle_prompt_editor_focus_out(&mut self, assist_id: InlineAssistId, cx: &mut App) {
690 let assist = &self.assists[&assist_id];
691 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
692 if assist_group.active_assist_id == Some(assist_id) {
693 assist_group.active_assist_id = None;
694 if assist_group.linked {
695 for assist_id in &assist_group.assist_ids {
696 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
697 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
698 prompt_editor.set_show_cursor_when_unfocused(false, cx)
699 });
700 }
701 }
702 }
703 }
704 }
705
706 fn handle_prompt_editor_event(
707 &mut self,
708 prompt_editor: Entity<PromptEditor<BufferCodegen>>,
709 event: &PromptEditorEvent,
710 window: &mut Window,
711 cx: &mut App,
712 ) {
713 let assist_id = prompt_editor.read(cx).id();
714 match event {
715 PromptEditorEvent::StartRequested => {
716 self.start_assist(assist_id, window, cx);
717 }
718 PromptEditorEvent::StopRequested => {
719 self.stop_assist(assist_id, cx);
720 }
721 PromptEditorEvent::ConfirmRequested { execute: _ } => {
722 self.finish_assist(assist_id, false, window, cx);
723 }
724 PromptEditorEvent::CancelRequested => {
725 self.finish_assist(assist_id, true, window, cx);
726 }
727 PromptEditorEvent::DismissRequested => {
728 self.dismiss_assist(assist_id, window, cx);
729 }
730 PromptEditorEvent::Resized { .. } => {
731 // This only matters for the terminal inline assistant
732 }
733 }
734 }
735
736 fn handle_editor_newline(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
737 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
738 return;
739 };
740
741 if editor.read(cx).selections.count() == 1 {
742 let (selection, buffer) = editor.update(cx, |editor, cx| {
743 (
744 editor.selections.newest::<usize>(cx),
745 editor.buffer().read(cx).snapshot(cx),
746 )
747 });
748 for assist_id in &editor_assists.assist_ids {
749 let assist = &self.assists[assist_id];
750 let assist_range = assist.range.to_offset(&buffer);
751 if assist_range.contains(&selection.start) && assist_range.contains(&selection.end)
752 {
753 if matches!(assist.codegen.read(cx).status(cx), CodegenStatus::Pending) {
754 self.dismiss_assist(*assist_id, window, cx);
755 } else {
756 self.finish_assist(*assist_id, false, window, cx);
757 }
758
759 return;
760 }
761 }
762 }
763
764 cx.propagate();
765 }
766
767 fn handle_editor_cancel(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
768 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
769 return;
770 };
771
772 if editor.read(cx).selections.count() == 1 {
773 let (selection, buffer) = editor.update(cx, |editor, cx| {
774 (
775 editor.selections.newest::<usize>(cx),
776 editor.buffer().read(cx).snapshot(cx),
777 )
778 });
779 let mut closest_assist_fallback = None;
780 for assist_id in &editor_assists.assist_ids {
781 let assist = &self.assists[assist_id];
782 let assist_range = assist.range.to_offset(&buffer);
783 if assist.decorations.is_some() {
784 if assist_range.contains(&selection.start)
785 && assist_range.contains(&selection.end)
786 {
787 self.focus_assist(*assist_id, window, cx);
788 return;
789 } else {
790 let distance_from_selection = assist_range
791 .start
792 .abs_diff(selection.start)
793 .min(assist_range.start.abs_diff(selection.end))
794 + assist_range
795 .end
796 .abs_diff(selection.start)
797 .min(assist_range.end.abs_diff(selection.end));
798 match closest_assist_fallback {
799 Some((_, old_distance)) => {
800 if distance_from_selection < old_distance {
801 closest_assist_fallback =
802 Some((assist_id, distance_from_selection));
803 }
804 }
805 None => {
806 closest_assist_fallback = Some((assist_id, distance_from_selection))
807 }
808 }
809 }
810 }
811 }
812
813 if let Some((&assist_id, _)) = closest_assist_fallback {
814 self.focus_assist(assist_id, window, cx);
815 }
816 }
817
818 cx.propagate();
819 }
820
821 fn handle_editor_release(
822 &mut self,
823 editor: WeakEntity<Editor>,
824 window: &mut Window,
825 cx: &mut App,
826 ) {
827 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor) {
828 for assist_id in editor_assists.assist_ids.clone() {
829 self.finish_assist(assist_id, true, window, cx);
830 }
831 }
832 }
833
834 fn handle_editor_change(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
835 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
836 return;
837 };
838 let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() else {
839 return;
840 };
841 let assist = &self.assists[&scroll_lock.assist_id];
842 let Some(decorations) = assist.decorations.as_ref() else {
843 return;
844 };
845
846 editor.update(cx, |editor, cx| {
847 let scroll_position = editor.scroll_position(cx);
848 let target_scroll_top = editor
849 .row_for_block(decorations.prompt_block_id, cx)
850 .unwrap()
851 .0 as f32
852 - scroll_lock.distance_from_top;
853 if target_scroll_top != scroll_position.y {
854 editor.set_scroll_position(point(scroll_position.x, target_scroll_top), window, cx);
855 }
856 });
857 }
858
859 fn handle_editor_event(
860 &mut self,
861 editor: Entity<Editor>,
862 event: &EditorEvent,
863 window: &mut Window,
864 cx: &mut App,
865 ) {
866 let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) else {
867 return;
868 };
869
870 match event {
871 EditorEvent::Edited { transaction_id } => {
872 let buffer = editor.read(cx).buffer().read(cx);
873 let edited_ranges =
874 buffer.edited_ranges_for_transaction::<usize>(*transaction_id, cx);
875 let snapshot = buffer.snapshot(cx);
876
877 for assist_id in editor_assists.assist_ids.clone() {
878 let assist = &self.assists[&assist_id];
879 if matches!(
880 assist.codegen.read(cx).status(cx),
881 CodegenStatus::Error(_) | CodegenStatus::Done
882 ) {
883 let assist_range = assist.range.to_offset(&snapshot);
884 if edited_ranges
885 .iter()
886 .any(|range| range.overlaps(&assist_range))
887 {
888 self.finish_assist(assist_id, false, window, cx);
889 }
890 }
891 }
892 }
893 EditorEvent::ScrollPositionChanged { .. } => {
894 if let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() {
895 let assist = &self.assists[&scroll_lock.assist_id];
896 if let Some(decorations) = assist.decorations.as_ref() {
897 let distance_from_top = editor.update(cx, |editor, cx| {
898 let scroll_top = editor.scroll_position(cx).y;
899 let prompt_row = editor
900 .row_for_block(decorations.prompt_block_id, cx)
901 .unwrap()
902 .0 as f32;
903 prompt_row - scroll_top
904 });
905
906 if distance_from_top != scroll_lock.distance_from_top {
907 editor_assists.scroll_lock = None;
908 }
909 }
910 }
911 }
912 EditorEvent::SelectionsChanged { .. } => {
913 for assist_id in editor_assists.assist_ids.clone() {
914 let assist = &self.assists[&assist_id];
915 if let Some(decorations) = assist.decorations.as_ref() {
916 if decorations
917 .prompt_editor
918 .focus_handle(cx)
919 .is_focused(window)
920 {
921 return;
922 }
923 }
924 }
925
926 editor_assists.scroll_lock = None;
927 }
928 _ => {}
929 }
930 }
931
932 pub fn finish_assist(
933 &mut self,
934 assist_id: InlineAssistId,
935 undo: bool,
936 window: &mut Window,
937 cx: &mut App,
938 ) {
939 if let Some(assist) = self.assists.get(&assist_id) {
940 let assist_group_id = assist.group_id;
941 if self.assist_groups[&assist_group_id].linked {
942 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
943 self.finish_assist(assist_id, undo, window, cx);
944 }
945 return;
946 }
947 }
948
949 self.dismiss_assist(assist_id, window, cx);
950
951 if let Some(assist) = self.assists.remove(&assist_id) {
952 if let hash_map::Entry::Occupied(mut entry) = self.assist_groups.entry(assist.group_id)
953 {
954 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
955 if entry.get().assist_ids.is_empty() {
956 entry.remove();
957 }
958 }
959
960 if let hash_map::Entry::Occupied(mut entry) =
961 self.assists_by_editor.entry(assist.editor.clone())
962 {
963 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
964 if entry.get().assist_ids.is_empty() {
965 entry.remove();
966 if let Some(editor) = assist.editor.upgrade() {
967 self.update_editor_highlights(&editor, cx);
968 }
969 } else {
970 entry.get().highlight_updates.send(()).ok();
971 }
972 }
973
974 let active_alternative = assist.codegen.read(cx).active_alternative().clone();
975 let message_id = active_alternative.read(cx).message_id.clone();
976
977 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
978 let language_name = assist.editor.upgrade().and_then(|editor| {
979 let multibuffer = editor.read(cx).buffer().read(cx);
980 let snapshot = multibuffer.snapshot(cx);
981 let ranges = snapshot.range_to_buffer_ranges(assist.range.clone());
982 ranges
983 .first()
984 .and_then(|(buffer, _, _)| buffer.language())
985 .map(|language| language.name())
986 });
987 report_assistant_event(
988 AssistantEvent {
989 conversation_id: None,
990 kind: AssistantKind::Inline,
991 message_id,
992 phase: if undo {
993 AssistantPhase::Rejected
994 } else {
995 AssistantPhase::Accepted
996 },
997 model: model.telemetry_id(),
998 model_provider: model.provider_id().to_string(),
999 response_latency: None,
1000 error_message: None,
1001 language_name: language_name.map(|name| name.to_proto()),
1002 },
1003 Some(self.telemetry.clone()),
1004 cx.http_client(),
1005 model.api_key(cx),
1006 cx.background_executor(),
1007 );
1008 }
1009
1010 if undo {
1011 assist.codegen.update(cx, |codegen, cx| codegen.undo(cx));
1012 } else {
1013 self.confirmed_assists.insert(assist_id, active_alternative);
1014 }
1015 }
1016 }
1017
1018 fn dismiss_assist(
1019 &mut self,
1020 assist_id: InlineAssistId,
1021 window: &mut Window,
1022 cx: &mut App,
1023 ) -> bool {
1024 let Some(assist) = self.assists.get_mut(&assist_id) else {
1025 return false;
1026 };
1027 let Some(editor) = assist.editor.upgrade() else {
1028 return false;
1029 };
1030 let Some(decorations) = assist.decorations.take() else {
1031 return false;
1032 };
1033
1034 editor.update(cx, |editor, cx| {
1035 let mut to_remove = decorations.removed_line_block_ids;
1036 to_remove.insert(decorations.prompt_block_id);
1037 to_remove.insert(decorations.end_block_id);
1038 editor.remove_blocks(to_remove, None, cx);
1039 });
1040
1041 if decorations
1042 .prompt_editor
1043 .focus_handle(cx)
1044 .contains_focused(window, cx)
1045 {
1046 self.focus_next_assist(assist_id, window, cx);
1047 }
1048
1049 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) {
1050 if editor_assists
1051 .scroll_lock
1052 .as_ref()
1053 .map_or(false, |lock| lock.assist_id == assist_id)
1054 {
1055 editor_assists.scroll_lock = None;
1056 }
1057 editor_assists.highlight_updates.send(()).ok();
1058 }
1059
1060 true
1061 }
1062
1063 fn focus_next_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1064 let Some(assist) = self.assists.get(&assist_id) else {
1065 return;
1066 };
1067
1068 let assist_group = &self.assist_groups[&assist.group_id];
1069 let assist_ix = assist_group
1070 .assist_ids
1071 .iter()
1072 .position(|id| *id == assist_id)
1073 .unwrap();
1074 let assist_ids = assist_group
1075 .assist_ids
1076 .iter()
1077 .skip(assist_ix + 1)
1078 .chain(assist_group.assist_ids.iter().take(assist_ix));
1079
1080 for assist_id in assist_ids {
1081 let assist = &self.assists[assist_id];
1082 if assist.decorations.is_some() {
1083 self.focus_assist(*assist_id, window, cx);
1084 return;
1085 }
1086 }
1087
1088 assist
1089 .editor
1090 .update(cx, |editor, cx| window.focus(&editor.focus_handle(cx)))
1091 .ok();
1092 }
1093
1094 fn focus_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1095 let Some(assist) = self.assists.get(&assist_id) else {
1096 return;
1097 };
1098
1099 if let Some(decorations) = assist.decorations.as_ref() {
1100 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
1101 prompt_editor.editor.update(cx, |editor, cx| {
1102 window.focus(&editor.focus_handle(cx));
1103 editor.select_all(&SelectAll, window, cx);
1104 })
1105 });
1106 }
1107
1108 self.scroll_to_assist(assist_id, window, cx);
1109 }
1110
1111 pub fn scroll_to_assist(
1112 &mut self,
1113 assist_id: InlineAssistId,
1114 window: &mut Window,
1115 cx: &mut App,
1116 ) {
1117 let Some(assist) = self.assists.get(&assist_id) else {
1118 return;
1119 };
1120 let Some(editor) = assist.editor.upgrade() else {
1121 return;
1122 };
1123
1124 let position = assist.range.start;
1125 editor.update(cx, |editor, cx| {
1126 editor.change_selections(None, window, cx, |selections| {
1127 selections.select_anchor_ranges([position..position])
1128 });
1129
1130 let mut scroll_target_top;
1131 let mut scroll_target_bottom;
1132 if let Some(decorations) = assist.decorations.as_ref() {
1133 scroll_target_top = editor
1134 .row_for_block(decorations.prompt_block_id, cx)
1135 .unwrap()
1136 .0 as f32;
1137 scroll_target_bottom = editor
1138 .row_for_block(decorations.end_block_id, cx)
1139 .unwrap()
1140 .0 as f32;
1141 } else {
1142 let snapshot = editor.snapshot(window, cx);
1143 let start_row = assist
1144 .range
1145 .start
1146 .to_display_point(&snapshot.display_snapshot)
1147 .row();
1148 scroll_target_top = start_row.0 as f32;
1149 scroll_target_bottom = scroll_target_top + 1.;
1150 }
1151 scroll_target_top -= editor.vertical_scroll_margin() as f32;
1152 scroll_target_bottom += editor.vertical_scroll_margin() as f32;
1153
1154 let height_in_lines = editor.visible_line_count().unwrap_or(0.);
1155 let scroll_top = editor.scroll_position(cx).y;
1156 let scroll_bottom = scroll_top + height_in_lines;
1157
1158 if scroll_target_top < scroll_top {
1159 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1160 } else if scroll_target_bottom > scroll_bottom {
1161 if (scroll_target_bottom - scroll_target_top) <= height_in_lines {
1162 editor.set_scroll_position(
1163 point(0., scroll_target_bottom - height_in_lines),
1164 window,
1165 cx,
1166 );
1167 } else {
1168 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1169 }
1170 }
1171 });
1172 }
1173
1174 fn unlink_assist_group(
1175 &mut self,
1176 assist_group_id: InlineAssistGroupId,
1177 window: &mut Window,
1178 cx: &mut App,
1179 ) -> Vec<InlineAssistId> {
1180 let assist_group = self.assist_groups.get_mut(&assist_group_id).unwrap();
1181 assist_group.linked = false;
1182 for assist_id in &assist_group.assist_ids {
1183 let assist = self.assists.get_mut(assist_id).unwrap();
1184 if let Some(editor_decorations) = assist.decorations.as_ref() {
1185 editor_decorations
1186 .prompt_editor
1187 .update(cx, |prompt_editor, cx| prompt_editor.unlink(window, cx));
1188 }
1189 }
1190 assist_group.assist_ids.clone()
1191 }
1192
1193 pub fn start_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1194 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1195 assist
1196 } else {
1197 return;
1198 };
1199
1200 let assist_group_id = assist.group_id;
1201 if self.assist_groups[&assist_group_id].linked {
1202 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
1203 self.start_assist(assist_id, window, cx);
1204 }
1205 return;
1206 }
1207
1208 let Some(user_prompt) = assist.user_prompt(cx) else {
1209 return;
1210 };
1211
1212 self.prompt_history.retain(|prompt| *prompt != user_prompt);
1213 self.prompt_history.push_back(user_prompt.clone());
1214 if self.prompt_history.len() > PROMPT_HISTORY_MAX_LEN {
1215 self.prompt_history.pop_front();
1216 }
1217
1218 assist
1219 .codegen
1220 .update(cx, |codegen, cx| codegen.start(user_prompt, cx))
1221 .log_err();
1222 }
1223
1224 pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut App) {
1225 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1226 assist
1227 } else {
1228 return;
1229 };
1230
1231 assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
1232 }
1233
1234 fn update_editor_highlights(&self, editor: &Entity<Editor>, cx: &mut App) {
1235 let mut gutter_pending_ranges = Vec::new();
1236 let mut gutter_transformed_ranges = Vec::new();
1237 let mut foreground_ranges = Vec::new();
1238 let mut inserted_row_ranges = Vec::new();
1239 let empty_assist_ids = Vec::new();
1240 let assist_ids = self
1241 .assists_by_editor
1242 .get(&editor.downgrade())
1243 .map_or(&empty_assist_ids, |editor_assists| {
1244 &editor_assists.assist_ids
1245 });
1246
1247 for assist_id in assist_ids {
1248 if let Some(assist) = self.assists.get(assist_id) {
1249 let codegen = assist.codegen.read(cx);
1250 let buffer = codegen.buffer(cx).read(cx).read(cx);
1251 foreground_ranges.extend(codegen.last_equal_ranges(cx).iter().cloned());
1252
1253 let pending_range =
1254 codegen.edit_position(cx).unwrap_or(assist.range.start)..assist.range.end;
1255 if pending_range.end.to_offset(&buffer) > pending_range.start.to_offset(&buffer) {
1256 gutter_pending_ranges.push(pending_range);
1257 }
1258
1259 if let Some(edit_position) = codegen.edit_position(cx) {
1260 let edited_range = assist.range.start..edit_position;
1261 if edited_range.end.to_offset(&buffer) > edited_range.start.to_offset(&buffer) {
1262 gutter_transformed_ranges.push(edited_range);
1263 }
1264 }
1265
1266 if assist.decorations.is_some() {
1267 inserted_row_ranges
1268 .extend(codegen.diff(cx).inserted_row_ranges.iter().cloned());
1269 }
1270 }
1271 }
1272
1273 let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
1274 merge_ranges(&mut foreground_ranges, &snapshot);
1275 merge_ranges(&mut gutter_pending_ranges, &snapshot);
1276 merge_ranges(&mut gutter_transformed_ranges, &snapshot);
1277 editor.update(cx, |editor, cx| {
1278 enum GutterPendingRange {}
1279 if gutter_pending_ranges.is_empty() {
1280 editor.clear_gutter_highlights::<GutterPendingRange>(cx);
1281 } else {
1282 editor.highlight_gutter::<GutterPendingRange>(
1283 &gutter_pending_ranges,
1284 |cx| cx.theme().status().info_background,
1285 cx,
1286 )
1287 }
1288
1289 enum GutterTransformedRange {}
1290 if gutter_transformed_ranges.is_empty() {
1291 editor.clear_gutter_highlights::<GutterTransformedRange>(cx);
1292 } else {
1293 editor.highlight_gutter::<GutterTransformedRange>(
1294 &gutter_transformed_ranges,
1295 |cx| cx.theme().status().info,
1296 cx,
1297 )
1298 }
1299
1300 if foreground_ranges.is_empty() {
1301 editor.clear_highlights::<InlineAssist>(cx);
1302 } else {
1303 editor.highlight_text::<InlineAssist>(
1304 foreground_ranges,
1305 HighlightStyle {
1306 fade_out: Some(0.6),
1307 ..Default::default()
1308 },
1309 cx,
1310 );
1311 }
1312
1313 editor.clear_row_highlights::<InlineAssist>();
1314 for row_range in inserted_row_ranges {
1315 editor.highlight_rows::<InlineAssist>(
1316 row_range,
1317 cx.theme().status().info_background,
1318 false,
1319 cx,
1320 );
1321 }
1322 });
1323 }
1324
1325 fn update_editor_blocks(
1326 &mut self,
1327 editor: &Entity<Editor>,
1328 assist_id: InlineAssistId,
1329 window: &mut Window,
1330 cx: &mut App,
1331 ) {
1332 let Some(assist) = self.assists.get_mut(&assist_id) else {
1333 return;
1334 };
1335 let Some(decorations) = assist.decorations.as_mut() else {
1336 return;
1337 };
1338
1339 let codegen = assist.codegen.read(cx);
1340 let old_snapshot = codegen.snapshot(cx);
1341 let old_buffer = codegen.old_buffer(cx);
1342 let deleted_row_ranges = codegen.diff(cx).deleted_row_ranges.clone();
1343
1344 editor.update(cx, |editor, cx| {
1345 let old_blocks = mem::take(&mut decorations.removed_line_block_ids);
1346 editor.remove_blocks(old_blocks, None, cx);
1347
1348 let mut new_blocks = Vec::new();
1349 for (new_row, old_row_range) in deleted_row_ranges {
1350 let (_, buffer_start) = old_snapshot
1351 .point_to_buffer_offset(Point::new(*old_row_range.start(), 0))
1352 .unwrap();
1353 let (_, buffer_end) = old_snapshot
1354 .point_to_buffer_offset(Point::new(
1355 *old_row_range.end(),
1356 old_snapshot.line_len(MultiBufferRow(*old_row_range.end())),
1357 ))
1358 .unwrap();
1359
1360 let deleted_lines_editor = cx.new(|cx| {
1361 let multi_buffer =
1362 cx.new(|_| MultiBuffer::without_headers(language::Capability::ReadOnly));
1363 multi_buffer.update(cx, |multi_buffer, cx| {
1364 multi_buffer.push_excerpts(
1365 old_buffer.clone(),
1366 Some(ExcerptRange {
1367 context: buffer_start..buffer_end,
1368 primary: None,
1369 }),
1370 cx,
1371 );
1372 });
1373
1374 enum DeletedLines {}
1375 let mut editor = Editor::for_multibuffer(multi_buffer, None, window, cx);
1376 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::None, cx);
1377 editor.set_show_wrap_guides(false, cx);
1378 editor.set_show_gutter(false, cx);
1379 editor.scroll_manager.set_forbid_vertical_scroll(true);
1380 editor.set_show_scrollbars(false, cx);
1381 editor.set_read_only(true);
1382 editor.set_show_edit_predictions(Some(false), window, cx);
1383 editor.highlight_rows::<DeletedLines>(
1384 Anchor::min()..Anchor::max(),
1385 cx.theme().status().deleted_background,
1386 false,
1387 cx,
1388 );
1389 editor
1390 });
1391
1392 let height =
1393 deleted_lines_editor.update(cx, |editor, cx| editor.max_point(cx).row().0 + 1);
1394 new_blocks.push(BlockProperties {
1395 placement: BlockPlacement::Above(new_row),
1396 height,
1397 style: BlockStyle::Flex,
1398 render: Arc::new(move |cx| {
1399 div()
1400 .block_mouse_down()
1401 .bg(cx.theme().status().deleted_background)
1402 .size_full()
1403 .h(height as f32 * cx.window.line_height())
1404 .pl(cx.gutter_dimensions.full_width())
1405 .child(deleted_lines_editor.clone())
1406 .into_any_element()
1407 }),
1408 priority: 0,
1409 });
1410 }
1411
1412 decorations.removed_line_block_ids = editor
1413 .insert_blocks(new_blocks, None, cx)
1414 .into_iter()
1415 .collect();
1416 })
1417 }
1418
1419 fn resolve_inline_assist_target(
1420 workspace: &mut Workspace,
1421 assistant_panel: Option<Entity<AssistantPanel>>,
1422 window: &mut Window,
1423 cx: &mut App,
1424 ) -> Option<InlineAssistTarget> {
1425 if let Some(terminal_panel) = workspace.panel::<TerminalPanel>(cx) {
1426 if terminal_panel
1427 .read(cx)
1428 .focus_handle(cx)
1429 .contains_focused(window, cx)
1430 {
1431 if let Some(terminal_view) = terminal_panel.read(cx).pane().and_then(|pane| {
1432 pane.read(cx)
1433 .active_item()
1434 .and_then(|t| t.downcast::<TerminalView>())
1435 }) {
1436 return Some(InlineAssistTarget::Terminal(terminal_view));
1437 }
1438 }
1439 }
1440
1441 let context_editor = assistant_panel
1442 .and_then(|panel| panel.read(cx).active_context_editor())
1443 .and_then(|editor| {
1444 let editor = &editor.read(cx).editor().clone();
1445 if editor.read(cx).is_focused(window) {
1446 Some(editor.clone())
1447 } else {
1448 None
1449 }
1450 });
1451
1452 if let Some(context_editor) = context_editor {
1453 Some(InlineAssistTarget::Editor(context_editor))
1454 } else if let Some(workspace_editor) = workspace
1455 .active_item(cx)
1456 .and_then(|item| item.act_as::<Editor>(cx))
1457 {
1458 Some(InlineAssistTarget::Editor(workspace_editor))
1459 } else if let Some(terminal_view) = workspace
1460 .active_item(cx)
1461 .and_then(|item| item.act_as::<TerminalView>(cx))
1462 {
1463 Some(InlineAssistTarget::Terminal(terminal_view))
1464 } else {
1465 None
1466 }
1467 }
1468}
1469
1470struct EditorInlineAssists {
1471 assist_ids: Vec<InlineAssistId>,
1472 scroll_lock: Option<InlineAssistScrollLock>,
1473 highlight_updates: async_watch::Sender<()>,
1474 _update_highlights: Task<Result<()>>,
1475 _subscriptions: Vec<gpui::Subscription>,
1476}
1477
1478struct InlineAssistScrollLock {
1479 assist_id: InlineAssistId,
1480 distance_from_top: f32,
1481}
1482
1483impl EditorInlineAssists {
1484 fn new(editor: &Entity<Editor>, window: &mut Window, cx: &mut App) -> Self {
1485 let (highlight_updates_tx, mut highlight_updates_rx) = async_watch::channel(());
1486 Self {
1487 assist_ids: Vec::new(),
1488 scroll_lock: None,
1489 highlight_updates: highlight_updates_tx,
1490 _update_highlights: cx.spawn({
1491 let editor = editor.downgrade();
1492 async move |cx| {
1493 while let Ok(()) = highlight_updates_rx.changed().await {
1494 let editor = editor.upgrade().context("editor was dropped")?;
1495 cx.update_global(|assistant: &mut InlineAssistant, cx| {
1496 assistant.update_editor_highlights(&editor, cx);
1497 })?;
1498 }
1499 Ok(())
1500 }
1501 }),
1502 _subscriptions: vec![
1503 cx.observe_release_in(editor, window, {
1504 let editor = editor.downgrade();
1505 |_, window, cx| {
1506 InlineAssistant::update_global(cx, |this, cx| {
1507 this.handle_editor_release(editor, window, cx);
1508 })
1509 }
1510 }),
1511 window.observe(editor, cx, move |editor, window, cx| {
1512 InlineAssistant::update_global(cx, |this, cx| {
1513 this.handle_editor_change(editor, window, cx)
1514 })
1515 }),
1516 window.subscribe(editor, cx, move |editor, event, window, cx| {
1517 InlineAssistant::update_global(cx, |this, cx| {
1518 this.handle_editor_event(editor, event, window, cx)
1519 })
1520 }),
1521 editor.update(cx, |editor, cx| {
1522 let editor_handle = cx.entity().downgrade();
1523 editor.register_action(move |_: &editor::actions::Newline, window, cx| {
1524 InlineAssistant::update_global(cx, |this, cx| {
1525 if let Some(editor) = editor_handle.upgrade() {
1526 this.handle_editor_newline(editor, window, cx)
1527 }
1528 })
1529 })
1530 }),
1531 editor.update(cx, |editor, cx| {
1532 let editor_handle = cx.entity().downgrade();
1533 editor.register_action(move |_: &editor::actions::Cancel, window, cx| {
1534 InlineAssistant::update_global(cx, |this, cx| {
1535 if let Some(editor) = editor_handle.upgrade() {
1536 this.handle_editor_cancel(editor, window, cx)
1537 }
1538 })
1539 })
1540 }),
1541 ],
1542 }
1543 }
1544}
1545
1546struct InlineAssistGroup {
1547 assist_ids: Vec<InlineAssistId>,
1548 linked: bool,
1549 active_assist_id: Option<InlineAssistId>,
1550}
1551
1552impl InlineAssistGroup {
1553 fn new() -> Self {
1554 Self {
1555 assist_ids: Vec::new(),
1556 linked: true,
1557 active_assist_id: None,
1558 }
1559 }
1560}
1561
1562fn build_assist_editor_renderer(editor: &Entity<PromptEditor<BufferCodegen>>) -> RenderBlock {
1563 let editor = editor.clone();
1564
1565 Arc::new(move |cx: &mut BlockContext| {
1566 let gutter_dimensions = editor.read(cx).gutter_dimensions();
1567
1568 *gutter_dimensions.lock() = *cx.gutter_dimensions;
1569 editor.clone().into_any_element()
1570 })
1571}
1572
1573#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1574struct InlineAssistGroupId(usize);
1575
1576impl InlineAssistGroupId {
1577 fn post_inc(&mut self) -> InlineAssistGroupId {
1578 let id = *self;
1579 self.0 += 1;
1580 id
1581 }
1582}
1583
1584pub struct InlineAssist {
1585 group_id: InlineAssistGroupId,
1586 range: Range<Anchor>,
1587 editor: WeakEntity<Editor>,
1588 decorations: Option<InlineAssistDecorations>,
1589 codegen: Entity<BufferCodegen>,
1590 _subscriptions: Vec<Subscription>,
1591 workspace: WeakEntity<Workspace>,
1592}
1593
1594impl InlineAssist {
1595 fn new(
1596 assist_id: InlineAssistId,
1597 group_id: InlineAssistGroupId,
1598 editor: &Entity<Editor>,
1599 prompt_editor: &Entity<PromptEditor<BufferCodegen>>,
1600 prompt_block_id: CustomBlockId,
1601 end_block_id: CustomBlockId,
1602 range: Range<Anchor>,
1603 codegen: Entity<BufferCodegen>,
1604 workspace: WeakEntity<Workspace>,
1605 window: &mut Window,
1606 cx: &mut App,
1607 ) -> Self {
1608 let prompt_editor_focus_handle = prompt_editor.focus_handle(cx);
1609 InlineAssist {
1610 group_id,
1611 editor: editor.downgrade(),
1612 decorations: Some(InlineAssistDecorations {
1613 prompt_block_id,
1614 prompt_editor: prompt_editor.clone(),
1615 removed_line_block_ids: HashSet::default(),
1616 end_block_id,
1617 }),
1618 range,
1619 codegen: codegen.clone(),
1620 workspace: workspace.clone(),
1621 _subscriptions: vec![
1622 window.on_focus_in(&prompt_editor_focus_handle, cx, move |_, cx| {
1623 InlineAssistant::update_global(cx, |this, cx| {
1624 this.handle_prompt_editor_focus_in(assist_id, cx)
1625 })
1626 }),
1627 window.on_focus_out(&prompt_editor_focus_handle, cx, move |_, _, cx| {
1628 InlineAssistant::update_global(cx, |this, cx| {
1629 this.handle_prompt_editor_focus_out(assist_id, cx)
1630 })
1631 }),
1632 window.subscribe(prompt_editor, cx, |prompt_editor, event, window, cx| {
1633 InlineAssistant::update_global(cx, |this, cx| {
1634 this.handle_prompt_editor_event(prompt_editor, event, window, cx)
1635 })
1636 }),
1637 window.observe(&codegen, cx, {
1638 let editor = editor.downgrade();
1639 move |_, window, cx| {
1640 if let Some(editor) = editor.upgrade() {
1641 InlineAssistant::update_global(cx, |this, cx| {
1642 if let Some(editor_assists) =
1643 this.assists_by_editor.get(&editor.downgrade())
1644 {
1645 editor_assists.highlight_updates.send(()).ok();
1646 }
1647
1648 this.update_editor_blocks(&editor, assist_id, window, cx);
1649 })
1650 }
1651 }
1652 }),
1653 window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
1654 InlineAssistant::update_global(cx, |this, cx| match event {
1655 CodegenEvent::Undone => this.finish_assist(assist_id, false, window, cx),
1656 CodegenEvent::Finished => {
1657 let assist = if let Some(assist) = this.assists.get(&assist_id) {
1658 assist
1659 } else {
1660 return;
1661 };
1662
1663 if let CodegenStatus::Error(error) = codegen.read(cx).status(cx) {
1664 if assist.decorations.is_none() {
1665 if let Some(workspace) = assist.workspace.upgrade() {
1666 let error = format!("Inline assistant error: {}", error);
1667 workspace.update(cx, |workspace, cx| {
1668 struct InlineAssistantError;
1669
1670 let id =
1671 NotificationId::composite::<InlineAssistantError>(
1672 assist_id.0,
1673 );
1674
1675 workspace.show_toast(Toast::new(id, error), cx);
1676 })
1677 }
1678 }
1679 }
1680
1681 if assist.decorations.is_none() {
1682 this.finish_assist(assist_id, false, window, cx);
1683 }
1684 }
1685 })
1686 }),
1687 ],
1688 }
1689 }
1690
1691 fn user_prompt(&self, cx: &App) -> Option<String> {
1692 let decorations = self.decorations.as_ref()?;
1693 Some(decorations.prompt_editor.read(cx).prompt(cx))
1694 }
1695}
1696
1697struct InlineAssistDecorations {
1698 prompt_block_id: CustomBlockId,
1699 prompt_editor: Entity<PromptEditor<BufferCodegen>>,
1700 removed_line_block_ids: HashSet<CustomBlockId>,
1701 end_block_id: CustomBlockId,
1702}
1703
1704struct AssistantCodeActionProvider {
1705 editor: WeakEntity<Editor>,
1706 workspace: WeakEntity<Workspace>,
1707 thread_store: Option<WeakEntity<ThreadStore>>,
1708}
1709
1710const ASSISTANT_CODE_ACTION_PROVIDER_ID: &str = "assistant2";
1711
1712impl CodeActionProvider for AssistantCodeActionProvider {
1713 fn id(&self) -> Arc<str> {
1714 ASSISTANT_CODE_ACTION_PROVIDER_ID.into()
1715 }
1716
1717 fn code_actions(
1718 &self,
1719 buffer: &Entity<Buffer>,
1720 range: Range<text::Anchor>,
1721 _: &mut Window,
1722 cx: &mut App,
1723 ) -> Task<Result<Vec<CodeAction>>> {
1724 if !AssistantSettings::get_global(cx).enabled {
1725 return Task::ready(Ok(Vec::new()));
1726 }
1727
1728 let snapshot = buffer.read(cx).snapshot();
1729 let mut range = range.to_point(&snapshot);
1730
1731 // Expand the range to line boundaries.
1732 range.start.column = 0;
1733 range.end.column = snapshot.line_len(range.end.row);
1734
1735 let mut has_diagnostics = false;
1736 for diagnostic in snapshot.diagnostics_in_range::<_, Point>(range.clone(), false) {
1737 range.start = cmp::min(range.start, diagnostic.range.start);
1738 range.end = cmp::max(range.end, diagnostic.range.end);
1739 has_diagnostics = true;
1740 }
1741 if has_diagnostics {
1742 if let Some(symbols_containing_start) = snapshot.symbols_containing(range.start, None) {
1743 if let Some(symbol) = symbols_containing_start.last() {
1744 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
1745 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
1746 }
1747 }
1748
1749 if let Some(symbols_containing_end) = snapshot.symbols_containing(range.end, None) {
1750 if let Some(symbol) = symbols_containing_end.last() {
1751 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
1752 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
1753 }
1754 }
1755
1756 Task::ready(Ok(vec![CodeAction {
1757 server_id: language::LanguageServerId(0),
1758 range: snapshot.anchor_before(range.start)..snapshot.anchor_after(range.end),
1759 lsp_action: LspAction::Action(Box::new(lsp::CodeAction {
1760 title: "Fix with Assistant".into(),
1761 ..Default::default()
1762 })),
1763 resolved: true,
1764 }]))
1765 } else {
1766 Task::ready(Ok(Vec::new()))
1767 }
1768 }
1769
1770 fn apply_code_action(
1771 &self,
1772 buffer: Entity<Buffer>,
1773 action: CodeAction,
1774 excerpt_id: ExcerptId,
1775 _push_to_history: bool,
1776 window: &mut Window,
1777 cx: &mut App,
1778 ) -> Task<Result<ProjectTransaction>> {
1779 let editor = self.editor.clone();
1780 let workspace = self.workspace.clone();
1781 let thread_store = self.thread_store.clone();
1782 window.spawn(cx, async move |cx| {
1783 let editor = editor.upgrade().context("editor was released")?;
1784 let range = editor
1785 .update(cx, |editor, cx| {
1786 editor.buffer().update(cx, |multibuffer, cx| {
1787 let buffer = buffer.read(cx);
1788 let multibuffer_snapshot = multibuffer.read(cx);
1789
1790 let old_context_range =
1791 multibuffer_snapshot.context_range_for_excerpt(excerpt_id)?;
1792 let mut new_context_range = old_context_range.clone();
1793 if action
1794 .range
1795 .start
1796 .cmp(&old_context_range.start, buffer)
1797 .is_lt()
1798 {
1799 new_context_range.start = action.range.start;
1800 }
1801 if action.range.end.cmp(&old_context_range.end, buffer).is_gt() {
1802 new_context_range.end = action.range.end;
1803 }
1804 drop(multibuffer_snapshot);
1805
1806 if new_context_range != old_context_range {
1807 multibuffer.resize_excerpt(excerpt_id, new_context_range, cx);
1808 }
1809
1810 let multibuffer_snapshot = multibuffer.read(cx);
1811 Some(
1812 multibuffer_snapshot
1813 .anchor_in_excerpt(excerpt_id, action.range.start)?
1814 ..multibuffer_snapshot
1815 .anchor_in_excerpt(excerpt_id, action.range.end)?,
1816 )
1817 })
1818 })?
1819 .context("invalid range")?;
1820
1821 cx.update_global(|assistant: &mut InlineAssistant, window, cx| {
1822 let assist_id = assistant.suggest_assist(
1823 &editor,
1824 range,
1825 "Fix Diagnostics".into(),
1826 None,
1827 true,
1828 workspace,
1829 thread_store,
1830 window,
1831 cx,
1832 );
1833 assistant.start_assist(assist_id, window, cx);
1834 })?;
1835
1836 Ok(ProjectTransaction::default())
1837 })
1838 }
1839}
1840
1841fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
1842 ranges.sort_unstable_by(|a, b| {
1843 a.start
1844 .cmp(&b.start, buffer)
1845 .then_with(|| b.end.cmp(&a.end, buffer))
1846 });
1847
1848 let mut ix = 0;
1849 while ix + 1 < ranges.len() {
1850 let b = ranges[ix + 1].clone();
1851 let a = &mut ranges[ix];
1852 if a.end.cmp(&b.start, buffer).is_gt() {
1853 if a.end.cmp(&b.end, buffer).is_lt() {
1854 a.end = b.end;
1855 }
1856 ranges.remove(ix + 1);
1857 } else {
1858 ix += 1;
1859 }
1860 }
1861}