1use crate::{
2 AssistantPanel, AssistantPanelEvent, CycleNextInlineAssist, CyclePreviousInlineAssist,
3};
4use anyhow::{anyhow, Context as _, Result};
5use assistant_context_editor::{humanize_token_count, RequestType};
6use assistant_settings::AssistantSettings;
7use client::{telemetry::Telemetry, ErrorExt};
8use collections::{hash_map, HashMap, HashSet, VecDeque};
9use editor::{
10 actions::{MoveDown, MoveUp, SelectAll},
11 display_map::{
12 BlockContext, BlockPlacement, BlockProperties, BlockStyle, CustomBlockId, RenderBlock,
13 ToDisplayPoint,
14 },
15 Anchor, AnchorRangeExt, CodeActionProvider, Editor, EditorElement, EditorEvent, EditorMode,
16 EditorStyle, ExcerptId, ExcerptRange, GutterDimensions, MultiBuffer, MultiBufferSnapshot,
17 ToOffset as _, ToPoint,
18};
19use feature_flags::{
20 Assistant2FeatureFlag, FeatureFlagAppExt as _, FeatureFlagViewExt as _, ZedPro,
21};
22use fs::Fs;
23use futures::{
24 channel::mpsc,
25 future::{BoxFuture, LocalBoxFuture},
26 join, SinkExt, Stream, StreamExt,
27};
28use gpui::{
29 anchored, deferred, point, AnyElement, App, ClickEvent, Context, CursorStyle, Entity,
30 EventEmitter, FocusHandle, Focusable, FontWeight, Global, HighlightStyle, Subscription, Task,
31 TextStyle, UpdateGlobal, WeakEntity, Window,
32};
33use language::{line_diff, Buffer, IndentKind, Point, Selection, TransactionId};
34use language_model::{
35 report_assistant_event, LanguageModel, LanguageModelRegistry, LanguageModelRequest,
36 LanguageModelRequestMessage, LanguageModelTextStream, Role,
37};
38use language_model_selector::inline_language_model_selector;
39use multi_buffer::MultiBufferRow;
40use parking_lot::Mutex;
41use project::{CodeAction, ProjectTransaction};
42use prompt_store::PromptBuilder;
43use rope::Rope;
44use settings::{update_settings_file, Settings, SettingsStore};
45use smol::future::FutureExt;
46use std::{
47 cmp,
48 future::{self, Future},
49 iter, mem,
50 ops::{Range, RangeInclusive},
51 pin::Pin,
52 rc::Rc,
53 sync::Arc,
54 task::{self, Poll},
55 time::{Duration, Instant},
56};
57use streaming_diff::{CharOperation, LineDiff, LineOperation, StreamingDiff};
58use telemetry_events::{AssistantEvent, AssistantKind, AssistantPhase};
59use terminal_view::terminal_panel::TerminalPanel;
60use text::{OffsetRangeExt, ToPoint as _};
61use theme::ThemeSettings;
62use ui::{
63 prelude::*, text_for_action, CheckboxWithLabel, IconButtonShape, KeyBinding, Popover, Tooltip,
64};
65use util::{RangeExt, ResultExt};
66use workspace::{notifications::NotificationId, ItemHandle, Toast, Workspace};
67
68pub fn init(
69 fs: Arc<dyn Fs>,
70 prompt_builder: Arc<PromptBuilder>,
71 telemetry: Arc<Telemetry>,
72 cx: &mut App,
73) {
74 cx.set_global(InlineAssistant::new(fs, prompt_builder, telemetry));
75 cx.observe_new(|_, window, cx| {
76 let Some(window) = window else {
77 return;
78 };
79 let workspace = cx.entity().clone();
80 InlineAssistant::update_global(cx, |inline_assistant, cx| {
81 inline_assistant.register_workspace(&workspace, window, cx)
82 });
83
84 cx.observe_flag::<Assistant2FeatureFlag, _>(window, {
85 |is_assistant2_enabled, _workspace, _window, cx| {
86 InlineAssistant::update_global(cx, |inline_assistant, _cx| {
87 inline_assistant.is_assistant2_enabled = is_assistant2_enabled;
88 });
89 }
90 })
91 .detach();
92 })
93 .detach();
94}
95
96const PROMPT_HISTORY_MAX_LEN: usize = 20;
97
98pub struct InlineAssistant {
99 next_assist_id: InlineAssistId,
100 next_assist_group_id: InlineAssistGroupId,
101 assists: HashMap<InlineAssistId, InlineAssist>,
102 assists_by_editor: HashMap<WeakEntity<Editor>, EditorInlineAssists>,
103 assist_groups: HashMap<InlineAssistGroupId, InlineAssistGroup>,
104 confirmed_assists: HashMap<InlineAssistId, Entity<CodegenAlternative>>,
105 prompt_history: VecDeque<String>,
106 prompt_builder: Arc<PromptBuilder>,
107 telemetry: Arc<Telemetry>,
108 fs: Arc<dyn Fs>,
109 is_assistant2_enabled: bool,
110}
111
112impl Global for InlineAssistant {}
113
114impl InlineAssistant {
115 pub fn new(
116 fs: Arc<dyn Fs>,
117 prompt_builder: Arc<PromptBuilder>,
118 telemetry: Arc<Telemetry>,
119 ) -> Self {
120 Self {
121 next_assist_id: InlineAssistId::default(),
122 next_assist_group_id: InlineAssistGroupId::default(),
123 assists: HashMap::default(),
124 assists_by_editor: HashMap::default(),
125 assist_groups: HashMap::default(),
126 confirmed_assists: HashMap::default(),
127 prompt_history: VecDeque::default(),
128 prompt_builder,
129 telemetry,
130 fs,
131 is_assistant2_enabled: false,
132 }
133 }
134
135 pub fn register_workspace(
136 &mut self,
137 workspace: &Entity<Workspace>,
138 window: &mut Window,
139 cx: &mut App,
140 ) {
141 window
142 .subscribe(workspace, cx, |workspace, event, window, cx| {
143 Self::update_global(cx, |this, cx| {
144 this.handle_workspace_event(workspace, event, window, cx)
145 });
146 })
147 .detach();
148
149 let workspace = workspace.downgrade();
150 cx.observe_global::<SettingsStore>(move |cx| {
151 let Some(workspace) = workspace.upgrade() else {
152 return;
153 };
154 let Some(terminal_panel) = workspace.read(cx).panel::<TerminalPanel>(cx) else {
155 return;
156 };
157 let enabled = AssistantSettings::get_global(cx).enabled;
158 terminal_panel.update(cx, |terminal_panel, cx| {
159 terminal_panel.set_assistant_enabled(enabled, cx)
160 });
161 })
162 .detach();
163 }
164
165 fn handle_workspace_event(
166 &mut self,
167 workspace: Entity<Workspace>,
168 event: &workspace::Event,
169 window: &mut Window,
170 cx: &mut App,
171 ) {
172 match event {
173 workspace::Event::UserSavedItem { item, .. } => {
174 // When the user manually saves an editor, automatically accepts all finished transformations.
175 if let Some(editor) = item.upgrade().and_then(|item| item.act_as::<Editor>(cx)) {
176 if let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) {
177 for assist_id in editor_assists.assist_ids.clone() {
178 let assist = &self.assists[&assist_id];
179 if let CodegenStatus::Done = assist.codegen.read(cx).status(cx) {
180 self.finish_assist(assist_id, false, window, cx)
181 }
182 }
183 }
184 }
185 }
186 workspace::Event::ItemAdded { item } => {
187 self.register_workspace_item(&workspace, item.as_ref(), window, cx);
188 }
189 _ => (),
190 }
191 }
192
193 fn register_workspace_item(
194 &mut self,
195 workspace: &Entity<Workspace>,
196 item: &dyn ItemHandle,
197 window: &mut Window,
198 cx: &mut App,
199 ) {
200 let is_assistant2_enabled = self.is_assistant2_enabled;
201
202 if let Some(editor) = item.act_as::<Editor>(cx) {
203 editor.update(cx, |editor, cx| {
204 if is_assistant2_enabled {
205 editor.remove_code_action_provider(
206 ASSISTANT_CODE_ACTION_PROVIDER_ID.into(),
207 window,
208 cx,
209 );
210 } else {
211 editor.add_code_action_provider(
212 Rc::new(AssistantCodeActionProvider {
213 editor: cx.entity().downgrade(),
214 workspace: workspace.downgrade(),
215 }),
216 window,
217 cx,
218 );
219 }
220 });
221 }
222 }
223
224 pub fn assist(
225 &mut self,
226 editor: &Entity<Editor>,
227 workspace: Option<WeakEntity<Workspace>>,
228 assistant_panel: Option<&Entity<AssistantPanel>>,
229 initial_prompt: Option<String>,
230 window: &mut Window,
231 cx: &mut App,
232 ) {
233 let (snapshot, initial_selections) = editor.update(cx, |editor, cx| {
234 (
235 editor.buffer().read(cx).snapshot(cx),
236 editor.selections.all::<Point>(cx),
237 )
238 });
239
240 let mut selections = Vec::<Selection<Point>>::new();
241 let mut newest_selection = None;
242 for mut selection in initial_selections {
243 if selection.end > selection.start {
244 selection.start.column = 0;
245 // If the selection ends at the start of the line, we don't want to include it.
246 if selection.end.column == 0 {
247 selection.end.row -= 1;
248 }
249 selection.end.column = snapshot.line_len(MultiBufferRow(selection.end.row));
250 }
251
252 if let Some(prev_selection) = selections.last_mut() {
253 if selection.start <= prev_selection.end {
254 prev_selection.end = selection.end;
255 continue;
256 }
257 }
258
259 let latest_selection = newest_selection.get_or_insert_with(|| selection.clone());
260 if selection.id > latest_selection.id {
261 *latest_selection = selection.clone();
262 }
263 selections.push(selection);
264 }
265 let newest_selection = newest_selection.unwrap();
266
267 let mut codegen_ranges = Vec::new();
268 for (buffer, buffer_range, excerpt_id) in
269 snapshot.ranges_to_buffer_ranges(selections.iter().map(|selection| {
270 snapshot.anchor_before(selection.start)..snapshot.anchor_after(selection.end)
271 }))
272 {
273 let start = buffer.anchor_before(buffer_range.start);
274 let end = buffer.anchor_after(buffer_range.end);
275
276 codegen_ranges.push(Anchor::range_in_buffer(
277 excerpt_id,
278 buffer.remote_id(),
279 start..end,
280 ));
281
282 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
283 self.telemetry.report_assistant_event(AssistantEvent {
284 conversation_id: None,
285 kind: AssistantKind::Inline,
286 phase: AssistantPhase::Invoked,
287 message_id: None,
288 model: model.telemetry_id(),
289 model_provider: model.provider_id().to_string(),
290 response_latency: None,
291 error_message: None,
292 language_name: buffer.language().map(|language| language.name().to_proto()),
293 });
294 }
295 }
296
297 let assist_group_id = self.next_assist_group_id.post_inc();
298 let prompt_buffer = cx.new(|cx| Buffer::local(initial_prompt.unwrap_or_default(), cx));
299 let prompt_buffer = cx.new(|cx| MultiBuffer::singleton(prompt_buffer, cx));
300
301 let mut assists = Vec::new();
302 let mut assist_to_focus = None;
303 for range in codegen_ranges {
304 let assist_id = self.next_assist_id.post_inc();
305 let codegen = cx.new(|cx| {
306 Codegen::new(
307 editor.read(cx).buffer().clone(),
308 range.clone(),
309 None,
310 self.telemetry.clone(),
311 self.prompt_builder.clone(),
312 cx,
313 )
314 });
315
316 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
317 let prompt_editor = cx.new(|cx| {
318 PromptEditor::new(
319 assist_id,
320 gutter_dimensions.clone(),
321 self.prompt_history.clone(),
322 prompt_buffer.clone(),
323 codegen.clone(),
324 editor,
325 assistant_panel,
326 workspace.clone(),
327 self.fs.clone(),
328 window,
329 cx,
330 )
331 });
332
333 if assist_to_focus.is_none() {
334 let focus_assist = if newest_selection.reversed {
335 range.start.to_point(&snapshot) == newest_selection.start
336 } else {
337 range.end.to_point(&snapshot) == newest_selection.end
338 };
339 if focus_assist {
340 assist_to_focus = Some(assist_id);
341 }
342 }
343
344 let [prompt_block_id, end_block_id] =
345 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
346
347 assists.push((
348 assist_id,
349 range,
350 prompt_editor,
351 prompt_block_id,
352 end_block_id,
353 ));
354 }
355
356 let editor_assists = self
357 .assists_by_editor
358 .entry(editor.downgrade())
359 .or_insert_with(|| EditorInlineAssists::new(&editor, window, cx));
360 let mut assist_group = InlineAssistGroup::new();
361 for (assist_id, range, prompt_editor, prompt_block_id, end_block_id) in assists {
362 self.assists.insert(
363 assist_id,
364 InlineAssist::new(
365 assist_id,
366 assist_group_id,
367 assistant_panel.is_some(),
368 editor,
369 &prompt_editor,
370 prompt_block_id,
371 end_block_id,
372 range,
373 prompt_editor.read(cx).codegen.clone(),
374 workspace.clone(),
375 window,
376 cx,
377 ),
378 );
379 assist_group.assist_ids.push(assist_id);
380 editor_assists.assist_ids.push(assist_id);
381 }
382 self.assist_groups.insert(assist_group_id, assist_group);
383
384 if let Some(assist_id) = assist_to_focus {
385 self.focus_assist(assist_id, window, cx);
386 }
387 }
388
389 #[allow(clippy::too_many_arguments)]
390 pub fn suggest_assist(
391 &mut self,
392 editor: &Entity<Editor>,
393 mut range: Range<Anchor>,
394 initial_prompt: String,
395 initial_transaction_id: Option<TransactionId>,
396 focus: bool,
397 workspace: Option<WeakEntity<Workspace>>,
398 assistant_panel: Option<&Entity<AssistantPanel>>,
399 window: &mut Window,
400 cx: &mut App,
401 ) -> InlineAssistId {
402 let assist_group_id = self.next_assist_group_id.post_inc();
403 let prompt_buffer = cx.new(|cx| Buffer::local(&initial_prompt, cx));
404 let prompt_buffer = cx.new(|cx| MultiBuffer::singleton(prompt_buffer, cx));
405
406 let assist_id = self.next_assist_id.post_inc();
407
408 let buffer = editor.read(cx).buffer().clone();
409 {
410 let snapshot = buffer.read(cx).read(cx);
411 range.start = range.start.bias_left(&snapshot);
412 range.end = range.end.bias_right(&snapshot);
413 }
414
415 let codegen = cx.new(|cx| {
416 Codegen::new(
417 editor.read(cx).buffer().clone(),
418 range.clone(),
419 initial_transaction_id,
420 self.telemetry.clone(),
421 self.prompt_builder.clone(),
422 cx,
423 )
424 });
425
426 let gutter_dimensions = Arc::new(Mutex::new(GutterDimensions::default()));
427 let prompt_editor = cx.new(|cx| {
428 PromptEditor::new(
429 assist_id,
430 gutter_dimensions.clone(),
431 self.prompt_history.clone(),
432 prompt_buffer.clone(),
433 codegen.clone(),
434 editor,
435 assistant_panel,
436 workspace.clone(),
437 self.fs.clone(),
438 window,
439 cx,
440 )
441 });
442
443 let [prompt_block_id, end_block_id] =
444 self.insert_assist_blocks(editor, &range, &prompt_editor, cx);
445
446 let editor_assists = self
447 .assists_by_editor
448 .entry(editor.downgrade())
449 .or_insert_with(|| EditorInlineAssists::new(&editor, window, cx));
450
451 let mut assist_group = InlineAssistGroup::new();
452 self.assists.insert(
453 assist_id,
454 InlineAssist::new(
455 assist_id,
456 assist_group_id,
457 assistant_panel.is_some(),
458 editor,
459 &prompt_editor,
460 prompt_block_id,
461 end_block_id,
462 range,
463 prompt_editor.read(cx).codegen.clone(),
464 workspace.clone(),
465 window,
466 cx,
467 ),
468 );
469 assist_group.assist_ids.push(assist_id);
470 editor_assists.assist_ids.push(assist_id);
471 self.assist_groups.insert(assist_group_id, assist_group);
472
473 if focus {
474 self.focus_assist(assist_id, window, cx);
475 }
476
477 assist_id
478 }
479
480 fn insert_assist_blocks(
481 &self,
482 editor: &Entity<Editor>,
483 range: &Range<Anchor>,
484 prompt_editor: &Entity<PromptEditor>,
485 cx: &mut App,
486 ) -> [CustomBlockId; 2] {
487 let prompt_editor_height = prompt_editor.update(cx, |prompt_editor, cx| {
488 prompt_editor
489 .editor
490 .update(cx, |editor, cx| editor.max_point(cx).row().0 + 1 + 2)
491 });
492 let assist_blocks = vec![
493 BlockProperties {
494 style: BlockStyle::Sticky,
495 placement: BlockPlacement::Above(range.start),
496 height: prompt_editor_height,
497 render: build_assist_editor_renderer(prompt_editor),
498 priority: 0,
499 },
500 BlockProperties {
501 style: BlockStyle::Sticky,
502 placement: BlockPlacement::Below(range.end),
503 height: 0,
504 render: Arc::new(|cx| {
505 v_flex()
506 .h_full()
507 .w_full()
508 .border_t_1()
509 .border_color(cx.theme().status().info_border)
510 .into_any_element()
511 }),
512 priority: 0,
513 },
514 ];
515
516 editor.update(cx, |editor, cx| {
517 let block_ids = editor.insert_blocks(assist_blocks, None, cx);
518 [block_ids[0], block_ids[1]]
519 })
520 }
521
522 fn handle_prompt_editor_focus_in(&mut self, assist_id: InlineAssistId, cx: &mut App) {
523 let assist = &self.assists[&assist_id];
524 let Some(decorations) = assist.decorations.as_ref() else {
525 return;
526 };
527 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
528 let editor_assists = self.assists_by_editor.get_mut(&assist.editor).unwrap();
529
530 assist_group.active_assist_id = Some(assist_id);
531 if assist_group.linked {
532 for assist_id in &assist_group.assist_ids {
533 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
534 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
535 prompt_editor.set_show_cursor_when_unfocused(true, cx)
536 });
537 }
538 }
539 }
540
541 assist
542 .editor
543 .update(cx, |editor, cx| {
544 let scroll_top = editor.scroll_position(cx).y;
545 let scroll_bottom = scroll_top + editor.visible_line_count().unwrap_or(0.);
546 let prompt_row = editor
547 .row_for_block(decorations.prompt_block_id, cx)
548 .unwrap()
549 .0 as f32;
550
551 if (scroll_top..scroll_bottom).contains(&prompt_row) {
552 editor_assists.scroll_lock = Some(InlineAssistScrollLock {
553 assist_id,
554 distance_from_top: prompt_row - scroll_top,
555 });
556 } else {
557 editor_assists.scroll_lock = None;
558 }
559 })
560 .ok();
561 }
562
563 fn handle_prompt_editor_focus_out(&mut self, assist_id: InlineAssistId, cx: &mut App) {
564 let assist = &self.assists[&assist_id];
565 let assist_group = self.assist_groups.get_mut(&assist.group_id).unwrap();
566 if assist_group.active_assist_id == Some(assist_id) {
567 assist_group.active_assist_id = None;
568 if assist_group.linked {
569 for assist_id in &assist_group.assist_ids {
570 if let Some(decorations) = self.assists[assist_id].decorations.as_ref() {
571 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
572 prompt_editor.set_show_cursor_when_unfocused(false, cx)
573 });
574 }
575 }
576 }
577 }
578 }
579
580 fn handle_prompt_editor_event(
581 &mut self,
582 prompt_editor: Entity<PromptEditor>,
583 event: &PromptEditorEvent,
584 window: &mut Window,
585 cx: &mut App,
586 ) {
587 let assist_id = prompt_editor.read(cx).id;
588 match event {
589 PromptEditorEvent::StartRequested => {
590 self.start_assist(assist_id, window, cx);
591 }
592 PromptEditorEvent::StopRequested => {
593 self.stop_assist(assist_id, cx);
594 }
595 PromptEditorEvent::ConfirmRequested => {
596 self.finish_assist(assist_id, false, window, cx);
597 }
598 PromptEditorEvent::CancelRequested => {
599 self.finish_assist(assist_id, true, window, cx);
600 }
601 PromptEditorEvent::DismissRequested => {
602 self.dismiss_assist(assist_id, window, cx);
603 }
604 }
605 }
606
607 fn handle_editor_newline(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
608 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
609 return;
610 };
611
612 if editor.read(cx).selections.count() == 1 {
613 let (selection, buffer) = editor.update(cx, |editor, cx| {
614 (
615 editor.selections.newest::<usize>(cx),
616 editor.buffer().read(cx).snapshot(cx),
617 )
618 });
619 for assist_id in &editor_assists.assist_ids {
620 let assist = &self.assists[assist_id];
621 let assist_range = assist.range.to_offset(&buffer);
622 if assist_range.contains(&selection.start) && assist_range.contains(&selection.end)
623 {
624 if matches!(assist.codegen.read(cx).status(cx), CodegenStatus::Pending) {
625 self.dismiss_assist(*assist_id, window, cx);
626 } else {
627 self.finish_assist(*assist_id, false, window, cx);
628 }
629
630 return;
631 }
632 }
633 }
634
635 cx.propagate();
636 }
637
638 fn handle_editor_cancel(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
639 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
640 return;
641 };
642
643 if editor.read(cx).selections.count() == 1 {
644 let (selection, buffer) = editor.update(cx, |editor, cx| {
645 (
646 editor.selections.newest::<usize>(cx),
647 editor.buffer().read(cx).snapshot(cx),
648 )
649 });
650 let mut closest_assist_fallback = None;
651 for assist_id in &editor_assists.assist_ids {
652 let assist = &self.assists[assist_id];
653 let assist_range = assist.range.to_offset(&buffer);
654 if assist.decorations.is_some() {
655 if assist_range.contains(&selection.start)
656 && assist_range.contains(&selection.end)
657 {
658 self.focus_assist(*assist_id, window, cx);
659 return;
660 } else {
661 let distance_from_selection = assist_range
662 .start
663 .abs_diff(selection.start)
664 .min(assist_range.start.abs_diff(selection.end))
665 + assist_range
666 .end
667 .abs_diff(selection.start)
668 .min(assist_range.end.abs_diff(selection.end));
669 match closest_assist_fallback {
670 Some((_, old_distance)) => {
671 if distance_from_selection < old_distance {
672 closest_assist_fallback =
673 Some((assist_id, distance_from_selection));
674 }
675 }
676 None => {
677 closest_assist_fallback = Some((assist_id, distance_from_selection))
678 }
679 }
680 }
681 }
682 }
683
684 if let Some((&assist_id, _)) = closest_assist_fallback {
685 self.focus_assist(assist_id, window, cx);
686 }
687 }
688
689 cx.propagate();
690 }
691
692 fn handle_editor_release(
693 &mut self,
694 editor: WeakEntity<Editor>,
695 window: &mut Window,
696 cx: &mut App,
697 ) {
698 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor) {
699 for assist_id in editor_assists.assist_ids.clone() {
700 self.finish_assist(assist_id, true, window, cx);
701 }
702 }
703 }
704
705 fn handle_editor_change(&mut self, editor: Entity<Editor>, window: &mut Window, cx: &mut App) {
706 let Some(editor_assists) = self.assists_by_editor.get(&editor.downgrade()) else {
707 return;
708 };
709 let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() else {
710 return;
711 };
712 let assist = &self.assists[&scroll_lock.assist_id];
713 let Some(decorations) = assist.decorations.as_ref() else {
714 return;
715 };
716
717 editor.update(cx, |editor, cx| {
718 let scroll_position = editor.scroll_position(cx);
719 let target_scroll_top = editor
720 .row_for_block(decorations.prompt_block_id, cx)
721 .unwrap()
722 .0 as f32
723 - scroll_lock.distance_from_top;
724 if target_scroll_top != scroll_position.y {
725 editor.set_scroll_position(point(scroll_position.x, target_scroll_top), window, cx);
726 }
727 });
728 }
729
730 fn handle_editor_event(
731 &mut self,
732 editor: Entity<Editor>,
733 event: &EditorEvent,
734 window: &mut Window,
735 cx: &mut App,
736 ) {
737 let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) else {
738 return;
739 };
740
741 match event {
742 EditorEvent::Edited { transaction_id } => {
743 let buffer = editor.read(cx).buffer().read(cx);
744 let edited_ranges =
745 buffer.edited_ranges_for_transaction::<usize>(*transaction_id, cx);
746 let snapshot = buffer.snapshot(cx);
747
748 for assist_id in editor_assists.assist_ids.clone() {
749 let assist = &self.assists[&assist_id];
750 if matches!(
751 assist.codegen.read(cx).status(cx),
752 CodegenStatus::Error(_) | CodegenStatus::Done
753 ) {
754 let assist_range = assist.range.to_offset(&snapshot);
755 if edited_ranges
756 .iter()
757 .any(|range| range.overlaps(&assist_range))
758 {
759 self.finish_assist(assist_id, false, window, cx);
760 }
761 }
762 }
763 }
764 EditorEvent::ScrollPositionChanged { .. } => {
765 if let Some(scroll_lock) = editor_assists.scroll_lock.as_ref() {
766 let assist = &self.assists[&scroll_lock.assist_id];
767 if let Some(decorations) = assist.decorations.as_ref() {
768 let distance_from_top = editor.update(cx, |editor, cx| {
769 let scroll_top = editor.scroll_position(cx).y;
770 let prompt_row = editor
771 .row_for_block(decorations.prompt_block_id, cx)
772 .unwrap()
773 .0 as f32;
774 prompt_row - scroll_top
775 });
776
777 if distance_from_top != scroll_lock.distance_from_top {
778 editor_assists.scroll_lock = None;
779 }
780 }
781 }
782 }
783 EditorEvent::SelectionsChanged { .. } => {
784 for assist_id in editor_assists.assist_ids.clone() {
785 let assist = &self.assists[&assist_id];
786 if let Some(decorations) = assist.decorations.as_ref() {
787 if decorations
788 .prompt_editor
789 .focus_handle(cx)
790 .is_focused(window)
791 {
792 return;
793 }
794 }
795 }
796
797 editor_assists.scroll_lock = None;
798 }
799 _ => {}
800 }
801 }
802
803 pub fn finish_assist(
804 &mut self,
805 assist_id: InlineAssistId,
806 undo: bool,
807 window: &mut Window,
808 cx: &mut App,
809 ) {
810 if let Some(assist) = self.assists.get(&assist_id) {
811 let assist_group_id = assist.group_id;
812 if self.assist_groups[&assist_group_id].linked {
813 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
814 self.finish_assist(assist_id, undo, window, cx);
815 }
816 return;
817 }
818 }
819
820 self.dismiss_assist(assist_id, window, cx);
821
822 if let Some(assist) = self.assists.remove(&assist_id) {
823 if let hash_map::Entry::Occupied(mut entry) = self.assist_groups.entry(assist.group_id)
824 {
825 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
826 if entry.get().assist_ids.is_empty() {
827 entry.remove();
828 }
829 }
830
831 if let hash_map::Entry::Occupied(mut entry) =
832 self.assists_by_editor.entry(assist.editor.clone())
833 {
834 entry.get_mut().assist_ids.retain(|id| *id != assist_id);
835 if entry.get().assist_ids.is_empty() {
836 entry.remove();
837 if let Some(editor) = assist.editor.upgrade() {
838 self.update_editor_highlights(&editor, cx);
839 }
840 } else {
841 entry.get().highlight_updates.send(()).ok();
842 }
843 }
844
845 let active_alternative = assist.codegen.read(cx).active_alternative().clone();
846 let message_id = active_alternative.read(cx).message_id.clone();
847
848 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
849 let language_name = assist.editor.upgrade().and_then(|editor| {
850 let multibuffer = editor.read(cx).buffer().read(cx);
851 let multibuffer_snapshot = multibuffer.snapshot(cx);
852 let ranges = multibuffer_snapshot.range_to_buffer_ranges(assist.range.clone());
853 ranges
854 .first()
855 .and_then(|(buffer, _, _)| buffer.language())
856 .map(|language| language.name())
857 });
858 report_assistant_event(
859 AssistantEvent {
860 conversation_id: None,
861 kind: AssistantKind::Inline,
862 message_id,
863 phase: if undo {
864 AssistantPhase::Rejected
865 } else {
866 AssistantPhase::Accepted
867 },
868 model: model.telemetry_id(),
869 model_provider: model.provider_id().to_string(),
870 response_latency: None,
871 error_message: None,
872 language_name: language_name.map(|name| name.to_proto()),
873 },
874 Some(self.telemetry.clone()),
875 cx.http_client(),
876 model.api_key(cx),
877 cx.background_executor(),
878 );
879 }
880
881 if undo {
882 assist.codegen.update(cx, |codegen, cx| codegen.undo(cx));
883 } else {
884 self.confirmed_assists.insert(assist_id, active_alternative);
885 }
886 }
887 }
888
889 fn dismiss_assist(
890 &mut self,
891 assist_id: InlineAssistId,
892 window: &mut Window,
893 cx: &mut App,
894 ) -> bool {
895 let Some(assist) = self.assists.get_mut(&assist_id) else {
896 return false;
897 };
898 let Some(editor) = assist.editor.upgrade() else {
899 return false;
900 };
901 let Some(decorations) = assist.decorations.take() else {
902 return false;
903 };
904
905 editor.update(cx, |editor, cx| {
906 let mut to_remove = decorations.removed_line_block_ids;
907 to_remove.insert(decorations.prompt_block_id);
908 to_remove.insert(decorations.end_block_id);
909 editor.remove_blocks(to_remove, None, cx);
910 });
911
912 if decorations
913 .prompt_editor
914 .focus_handle(cx)
915 .contains_focused(window, cx)
916 {
917 self.focus_next_assist(assist_id, window, cx);
918 }
919
920 if let Some(editor_assists) = self.assists_by_editor.get_mut(&editor.downgrade()) {
921 if editor_assists
922 .scroll_lock
923 .as_ref()
924 .map_or(false, |lock| lock.assist_id == assist_id)
925 {
926 editor_assists.scroll_lock = None;
927 }
928 editor_assists.highlight_updates.send(()).ok();
929 }
930
931 true
932 }
933
934 fn focus_next_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
935 let Some(assist) = self.assists.get(&assist_id) else {
936 return;
937 };
938
939 let assist_group = &self.assist_groups[&assist.group_id];
940 let assist_ix = assist_group
941 .assist_ids
942 .iter()
943 .position(|id| *id == assist_id)
944 .unwrap();
945 let assist_ids = assist_group
946 .assist_ids
947 .iter()
948 .skip(assist_ix + 1)
949 .chain(assist_group.assist_ids.iter().take(assist_ix));
950
951 for assist_id in assist_ids {
952 let assist = &self.assists[assist_id];
953 if assist.decorations.is_some() {
954 self.focus_assist(*assist_id, window, cx);
955 return;
956 }
957 }
958
959 assist
960 .editor
961 .update(cx, |editor, cx| window.focus(&editor.focus_handle(cx)))
962 .ok();
963 }
964
965 fn focus_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
966 let Some(assist) = self.assists.get(&assist_id) else {
967 return;
968 };
969
970 if let Some(decorations) = assist.decorations.as_ref() {
971 decorations.prompt_editor.update(cx, |prompt_editor, cx| {
972 prompt_editor.editor.update(cx, |editor, cx| {
973 window.focus(&editor.focus_handle(cx));
974 editor.select_all(&SelectAll, window, cx);
975 })
976 });
977 }
978
979 self.scroll_to_assist(assist_id, window, cx);
980 }
981
982 pub fn scroll_to_assist(
983 &mut self,
984 assist_id: InlineAssistId,
985 window: &mut Window,
986 cx: &mut App,
987 ) {
988 let Some(assist) = self.assists.get(&assist_id) else {
989 return;
990 };
991 let Some(editor) = assist.editor.upgrade() else {
992 return;
993 };
994
995 let position = assist.range.start;
996 editor.update(cx, |editor, cx| {
997 editor.change_selections(None, window, cx, |selections| {
998 selections.select_anchor_ranges([position..position])
999 });
1000
1001 let mut scroll_target_top;
1002 let mut scroll_target_bottom;
1003 if let Some(decorations) = assist.decorations.as_ref() {
1004 scroll_target_top = editor
1005 .row_for_block(decorations.prompt_block_id, cx)
1006 .unwrap()
1007 .0 as f32;
1008 scroll_target_bottom = editor
1009 .row_for_block(decorations.end_block_id, cx)
1010 .unwrap()
1011 .0 as f32;
1012 } else {
1013 let snapshot = editor.snapshot(window, cx);
1014 let start_row = assist
1015 .range
1016 .start
1017 .to_display_point(&snapshot.display_snapshot)
1018 .row();
1019 scroll_target_top = start_row.0 as f32;
1020 scroll_target_bottom = scroll_target_top + 1.;
1021 }
1022 scroll_target_top -= editor.vertical_scroll_margin() as f32;
1023 scroll_target_bottom += editor.vertical_scroll_margin() as f32;
1024
1025 let height_in_lines = editor.visible_line_count().unwrap_or(0.);
1026 let scroll_top = editor.scroll_position(cx).y;
1027 let scroll_bottom = scroll_top + height_in_lines;
1028
1029 if scroll_target_top < scroll_top {
1030 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1031 } else if scroll_target_bottom > scroll_bottom {
1032 if (scroll_target_bottom - scroll_target_top) <= height_in_lines {
1033 editor.set_scroll_position(
1034 point(0., scroll_target_bottom - height_in_lines),
1035 window,
1036 cx,
1037 );
1038 } else {
1039 editor.set_scroll_position(point(0., scroll_target_top), window, cx);
1040 }
1041 }
1042 });
1043 }
1044
1045 fn unlink_assist_group(
1046 &mut self,
1047 assist_group_id: InlineAssistGroupId,
1048 window: &mut Window,
1049 cx: &mut App,
1050 ) -> Vec<InlineAssistId> {
1051 let assist_group = self.assist_groups.get_mut(&assist_group_id).unwrap();
1052 assist_group.linked = false;
1053 for assist_id in &assist_group.assist_ids {
1054 let assist = self.assists.get_mut(assist_id).unwrap();
1055 if let Some(editor_decorations) = assist.decorations.as_ref() {
1056 editor_decorations
1057 .prompt_editor
1058 .update(cx, |prompt_editor, cx| prompt_editor.unlink(window, cx));
1059 }
1060 }
1061 assist_group.assist_ids.clone()
1062 }
1063
1064 pub fn start_assist(&mut self, assist_id: InlineAssistId, window: &mut Window, cx: &mut App) {
1065 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1066 assist
1067 } else {
1068 return;
1069 };
1070
1071 let assist_group_id = assist.group_id;
1072 if self.assist_groups[&assist_group_id].linked {
1073 for assist_id in self.unlink_assist_group(assist_group_id, window, cx) {
1074 self.start_assist(assist_id, window, cx);
1075 }
1076 return;
1077 }
1078
1079 let Some(user_prompt) = assist.user_prompt(cx) else {
1080 return;
1081 };
1082
1083 self.prompt_history.retain(|prompt| *prompt != user_prompt);
1084 self.prompt_history.push_back(user_prompt.clone());
1085 if self.prompt_history.len() > PROMPT_HISTORY_MAX_LEN {
1086 self.prompt_history.pop_front();
1087 }
1088
1089 let assistant_panel_context = assist.assistant_panel_context(cx);
1090
1091 assist
1092 .codegen
1093 .update(cx, |codegen, cx| {
1094 codegen.start(user_prompt, assistant_panel_context, cx)
1095 })
1096 .log_err();
1097 }
1098
1099 pub fn stop_assist(&mut self, assist_id: InlineAssistId, cx: &mut App) {
1100 let assist = if let Some(assist) = self.assists.get_mut(&assist_id) {
1101 assist
1102 } else {
1103 return;
1104 };
1105
1106 assist.codegen.update(cx, |codegen, cx| codegen.stop(cx));
1107 }
1108
1109 fn update_editor_highlights(&self, editor: &Entity<Editor>, cx: &mut App) {
1110 let mut gutter_pending_ranges = Vec::new();
1111 let mut gutter_transformed_ranges = Vec::new();
1112 let mut foreground_ranges = Vec::new();
1113 let mut inserted_row_ranges = Vec::new();
1114 let empty_assist_ids = Vec::new();
1115 let assist_ids = self
1116 .assists_by_editor
1117 .get(&editor.downgrade())
1118 .map_or(&empty_assist_ids, |editor_assists| {
1119 &editor_assists.assist_ids
1120 });
1121
1122 for assist_id in assist_ids {
1123 if let Some(assist) = self.assists.get(assist_id) {
1124 let codegen = assist.codegen.read(cx);
1125 let buffer = codegen.buffer(cx).read(cx).read(cx);
1126 foreground_ranges.extend(codegen.last_equal_ranges(cx).iter().cloned());
1127
1128 let pending_range =
1129 codegen.edit_position(cx).unwrap_or(assist.range.start)..assist.range.end;
1130 if pending_range.end.to_offset(&buffer) > pending_range.start.to_offset(&buffer) {
1131 gutter_pending_ranges.push(pending_range);
1132 }
1133
1134 if let Some(edit_position) = codegen.edit_position(cx) {
1135 let edited_range = assist.range.start..edit_position;
1136 if edited_range.end.to_offset(&buffer) > edited_range.start.to_offset(&buffer) {
1137 gutter_transformed_ranges.push(edited_range);
1138 }
1139 }
1140
1141 if assist.decorations.is_some() {
1142 inserted_row_ranges
1143 .extend(codegen.diff(cx).inserted_row_ranges.iter().cloned());
1144 }
1145 }
1146 }
1147
1148 let snapshot = editor.read(cx).buffer().read(cx).snapshot(cx);
1149 merge_ranges(&mut foreground_ranges, &snapshot);
1150 merge_ranges(&mut gutter_pending_ranges, &snapshot);
1151 merge_ranges(&mut gutter_transformed_ranges, &snapshot);
1152 editor.update(cx, |editor, cx| {
1153 enum GutterPendingRange {}
1154 if gutter_pending_ranges.is_empty() {
1155 editor.clear_gutter_highlights::<GutterPendingRange>(cx);
1156 } else {
1157 editor.highlight_gutter::<GutterPendingRange>(
1158 &gutter_pending_ranges,
1159 |cx| cx.theme().status().info_background,
1160 cx,
1161 )
1162 }
1163
1164 enum GutterTransformedRange {}
1165 if gutter_transformed_ranges.is_empty() {
1166 editor.clear_gutter_highlights::<GutterTransformedRange>(cx);
1167 } else {
1168 editor.highlight_gutter::<GutterTransformedRange>(
1169 &gutter_transformed_ranges,
1170 |cx| cx.theme().status().info,
1171 cx,
1172 )
1173 }
1174
1175 if foreground_ranges.is_empty() {
1176 editor.clear_highlights::<InlineAssist>(cx);
1177 } else {
1178 editor.highlight_text::<InlineAssist>(
1179 foreground_ranges,
1180 HighlightStyle {
1181 fade_out: Some(0.6),
1182 ..Default::default()
1183 },
1184 cx,
1185 );
1186 }
1187
1188 editor.clear_row_highlights::<InlineAssist>();
1189 for row_range in inserted_row_ranges {
1190 editor.highlight_rows::<InlineAssist>(
1191 row_range,
1192 cx.theme().status().info_background,
1193 false,
1194 cx,
1195 );
1196 }
1197 });
1198 }
1199
1200 fn update_editor_blocks(
1201 &mut self,
1202 editor: &Entity<Editor>,
1203 assist_id: InlineAssistId,
1204 window: &mut Window,
1205 cx: &mut App,
1206 ) {
1207 let Some(assist) = self.assists.get_mut(&assist_id) else {
1208 return;
1209 };
1210 let Some(decorations) = assist.decorations.as_mut() else {
1211 return;
1212 };
1213
1214 let codegen = assist.codegen.read(cx);
1215 let old_snapshot = codegen.snapshot(cx);
1216 let old_buffer = codegen.old_buffer(cx);
1217 let deleted_row_ranges = codegen.diff(cx).deleted_row_ranges.clone();
1218
1219 editor.update(cx, |editor, cx| {
1220 let old_blocks = mem::take(&mut decorations.removed_line_block_ids);
1221 editor.remove_blocks(old_blocks, None, cx);
1222
1223 let mut new_blocks = Vec::new();
1224 for (new_row, old_row_range) in deleted_row_ranges {
1225 let (_, buffer_start) = old_snapshot
1226 .point_to_buffer_offset(Point::new(*old_row_range.start(), 0))
1227 .unwrap();
1228 let (_, buffer_end) = old_snapshot
1229 .point_to_buffer_offset(Point::new(
1230 *old_row_range.end(),
1231 old_snapshot.line_len(MultiBufferRow(*old_row_range.end())),
1232 ))
1233 .unwrap();
1234
1235 let deleted_lines_editor = cx.new(|cx| {
1236 let multi_buffer =
1237 cx.new(|_| MultiBuffer::without_headers(language::Capability::ReadOnly));
1238 multi_buffer.update(cx, |multi_buffer, cx| {
1239 multi_buffer.push_excerpts(
1240 old_buffer.clone(),
1241 Some(ExcerptRange {
1242 context: buffer_start..buffer_end,
1243 primary: None,
1244 }),
1245 cx,
1246 );
1247 });
1248
1249 enum DeletedLines {}
1250 let mut editor = Editor::for_multibuffer(multi_buffer, None, true, window, cx);
1251 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::None, cx);
1252 editor.set_show_wrap_guides(false, cx);
1253 editor.set_show_gutter(false, cx);
1254 editor.scroll_manager.set_forbid_vertical_scroll(true);
1255 editor.set_show_scrollbars(false, cx);
1256 editor.set_read_only(true);
1257 editor.set_show_edit_predictions(Some(false), window, cx);
1258 editor.highlight_rows::<DeletedLines>(
1259 Anchor::min()..Anchor::max(),
1260 cx.theme().status().deleted_background,
1261 false,
1262 cx,
1263 );
1264 editor
1265 });
1266
1267 let height =
1268 deleted_lines_editor.update(cx, |editor, cx| editor.max_point(cx).row().0 + 1);
1269 new_blocks.push(BlockProperties {
1270 placement: BlockPlacement::Above(new_row),
1271 height,
1272 style: BlockStyle::Flex,
1273 render: Arc::new(move |cx| {
1274 div()
1275 .block_mouse_down()
1276 .bg(cx.theme().status().deleted_background)
1277 .size_full()
1278 .h(height as f32 * cx.window.line_height())
1279 .pl(cx.gutter_dimensions.full_width())
1280 .child(deleted_lines_editor.clone())
1281 .into_any_element()
1282 }),
1283 priority: 0,
1284 });
1285 }
1286
1287 decorations.removed_line_block_ids = editor
1288 .insert_blocks(new_blocks, None, cx)
1289 .into_iter()
1290 .collect();
1291 })
1292 }
1293}
1294
1295struct EditorInlineAssists {
1296 assist_ids: Vec<InlineAssistId>,
1297 scroll_lock: Option<InlineAssistScrollLock>,
1298 highlight_updates: async_watch::Sender<()>,
1299 _update_highlights: Task<Result<()>>,
1300 _subscriptions: Vec<gpui::Subscription>,
1301}
1302
1303struct InlineAssistScrollLock {
1304 assist_id: InlineAssistId,
1305 distance_from_top: f32,
1306}
1307
1308impl EditorInlineAssists {
1309 fn new(editor: &Entity<Editor>, window: &mut Window, cx: &mut App) -> Self {
1310 let (highlight_updates_tx, mut highlight_updates_rx) = async_watch::channel(());
1311 Self {
1312 assist_ids: Vec::new(),
1313 scroll_lock: None,
1314 highlight_updates: highlight_updates_tx,
1315 _update_highlights: cx.spawn(|cx| {
1316 let editor = editor.downgrade();
1317 async move {
1318 while let Ok(()) = highlight_updates_rx.changed().await {
1319 let editor = editor.upgrade().context("editor was dropped")?;
1320 cx.update_global(|assistant: &mut InlineAssistant, cx| {
1321 assistant.update_editor_highlights(&editor, cx);
1322 })?;
1323 }
1324 Ok(())
1325 }
1326 }),
1327 _subscriptions: vec![
1328 cx.observe_release_in(editor, window, {
1329 let editor = editor.downgrade();
1330 |_, window, cx| {
1331 InlineAssistant::update_global(cx, |this, cx| {
1332 this.handle_editor_release(editor, window, cx);
1333 })
1334 }
1335 }),
1336 window.observe(editor, cx, move |editor, window, cx| {
1337 InlineAssistant::update_global(cx, |this, cx| {
1338 this.handle_editor_change(editor, window, cx)
1339 })
1340 }),
1341 window.subscribe(editor, cx, move |editor, event, window, cx| {
1342 InlineAssistant::update_global(cx, |this, cx| {
1343 this.handle_editor_event(editor, event, window, cx)
1344 })
1345 }),
1346 editor.update(cx, |editor, cx| {
1347 let editor_handle = cx.entity().downgrade();
1348 editor.register_action(move |_: &editor::actions::Newline, window, cx| {
1349 InlineAssistant::update_global(cx, |this, cx| {
1350 if let Some(editor) = editor_handle.upgrade() {
1351 this.handle_editor_newline(editor, window, cx)
1352 }
1353 })
1354 })
1355 }),
1356 editor.update(cx, |editor, cx| {
1357 let editor_handle = cx.entity().downgrade();
1358 editor.register_action(move |_: &editor::actions::Cancel, window, cx| {
1359 InlineAssistant::update_global(cx, |this, cx| {
1360 if let Some(editor) = editor_handle.upgrade() {
1361 this.handle_editor_cancel(editor, window, cx)
1362 }
1363 })
1364 })
1365 }),
1366 ],
1367 }
1368 }
1369}
1370
1371struct InlineAssistGroup {
1372 assist_ids: Vec<InlineAssistId>,
1373 linked: bool,
1374 active_assist_id: Option<InlineAssistId>,
1375}
1376
1377impl InlineAssistGroup {
1378 fn new() -> Self {
1379 Self {
1380 assist_ids: Vec::new(),
1381 linked: true,
1382 active_assist_id: None,
1383 }
1384 }
1385}
1386
1387fn build_assist_editor_renderer(editor: &Entity<PromptEditor>) -> RenderBlock {
1388 let editor = editor.clone();
1389 Arc::new(move |cx: &mut BlockContext| {
1390 *editor.read(cx).gutter_dimensions.lock() = *cx.gutter_dimensions;
1391 editor.clone().into_any_element()
1392 })
1393}
1394
1395#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1396pub struct InlineAssistId(usize);
1397
1398impl InlineAssistId {
1399 fn post_inc(&mut self) -> InlineAssistId {
1400 let id = *self;
1401 self.0 += 1;
1402 id
1403 }
1404}
1405
1406#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, Hash)]
1407struct InlineAssistGroupId(usize);
1408
1409impl InlineAssistGroupId {
1410 fn post_inc(&mut self) -> InlineAssistGroupId {
1411 let id = *self;
1412 self.0 += 1;
1413 id
1414 }
1415}
1416
1417enum PromptEditorEvent {
1418 StartRequested,
1419 StopRequested,
1420 ConfirmRequested,
1421 CancelRequested,
1422 DismissRequested,
1423}
1424
1425struct PromptEditor {
1426 id: InlineAssistId,
1427 editor: Entity<Editor>,
1428 edited_since_done: bool,
1429 gutter_dimensions: Arc<Mutex<GutterDimensions>>,
1430 prompt_history: VecDeque<String>,
1431 prompt_history_ix: Option<usize>,
1432 pending_prompt: String,
1433 codegen: Entity<Codegen>,
1434 _codegen_subscription: Subscription,
1435 editor_subscriptions: Vec<Subscription>,
1436 pending_token_count: Task<Result<()>>,
1437 token_counts: Option<TokenCounts>,
1438 _token_count_subscriptions: Vec<Subscription>,
1439 workspace: Option<WeakEntity<Workspace>>,
1440 show_rate_limit_notice: bool,
1441 fs: Arc<dyn Fs>,
1442}
1443
1444#[derive(Copy, Clone)]
1445pub struct TokenCounts {
1446 total: usize,
1447 assistant_panel: usize,
1448}
1449
1450impl EventEmitter<PromptEditorEvent> for PromptEditor {}
1451
1452impl Render for PromptEditor {
1453 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1454 let gutter_dimensions = *self.gutter_dimensions.lock();
1455 let codegen = self.codegen.read(cx);
1456
1457 let mut buttons = Vec::new();
1458 if codegen.alternative_count(cx) > 1 {
1459 buttons.push(self.render_cycle_controls(cx));
1460 }
1461
1462 let status = codegen.status(cx);
1463 buttons.extend(match status {
1464 CodegenStatus::Idle => {
1465 vec![
1466 IconButton::new("cancel", IconName::Close)
1467 .icon_color(Color::Muted)
1468 .shape(IconButtonShape::Square)
1469 .tooltip(|window, cx| {
1470 Tooltip::for_action("Cancel Assist", &menu::Cancel, window, cx)
1471 })
1472 .on_click(
1473 cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1474 )
1475 .into_any_element(),
1476 IconButton::new("start", IconName::SparkleAlt)
1477 .icon_color(Color::Muted)
1478 .shape(IconButtonShape::Square)
1479 .tooltip(|window, cx| {
1480 Tooltip::for_action("Transform", &menu::Confirm, window, cx)
1481 })
1482 .on_click(
1483 cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StartRequested)),
1484 )
1485 .into_any_element(),
1486 ]
1487 }
1488 CodegenStatus::Pending => {
1489 vec![
1490 IconButton::new("cancel", IconName::Close)
1491 .icon_color(Color::Muted)
1492 .shape(IconButtonShape::Square)
1493 .tooltip(Tooltip::text("Cancel Assist"))
1494 .on_click(
1495 cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1496 )
1497 .into_any_element(),
1498 IconButton::new("stop", IconName::Stop)
1499 .icon_color(Color::Error)
1500 .shape(IconButtonShape::Square)
1501 .tooltip(|window, cx| {
1502 Tooltip::with_meta(
1503 "Interrupt Transformation",
1504 Some(&menu::Cancel),
1505 "Changes won't be discarded",
1506 window,
1507 cx,
1508 )
1509 })
1510 .on_click(
1511 cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::StopRequested)),
1512 )
1513 .into_any_element(),
1514 ]
1515 }
1516 CodegenStatus::Error(_) | CodegenStatus::Done => {
1517 let must_rerun =
1518 self.edited_since_done || matches!(status, CodegenStatus::Error(_));
1519 // when accept button isn't visible, then restart maps to confirm
1520 // when accept button is visible, then restart must be mapped to an alternate keyboard shortcut
1521 let restart_key: &dyn gpui::Action = if must_rerun {
1522 &menu::Confirm
1523 } else {
1524 &menu::Restart
1525 };
1526 vec![
1527 IconButton::new("cancel", IconName::Close)
1528 .icon_color(Color::Muted)
1529 .shape(IconButtonShape::Square)
1530 .tooltip(|window, cx| {
1531 Tooltip::for_action("Cancel Assist", &menu::Cancel, window, cx)
1532 })
1533 .on_click(
1534 cx.listener(|_, _, _, cx| cx.emit(PromptEditorEvent::CancelRequested)),
1535 )
1536 .into_any_element(),
1537 IconButton::new("restart", IconName::RotateCw)
1538 .icon_color(Color::Muted)
1539 .shape(IconButtonShape::Square)
1540 .tooltip(|window, cx| {
1541 Tooltip::with_meta(
1542 "Regenerate Transformation",
1543 Some(restart_key),
1544 "Current change will be discarded",
1545 window,
1546 cx,
1547 )
1548 })
1549 .on_click(cx.listener(|_, _, _, cx| {
1550 cx.emit(PromptEditorEvent::StartRequested);
1551 }))
1552 .into_any_element(),
1553 if !must_rerun {
1554 IconButton::new("confirm", IconName::Check)
1555 .icon_color(Color::Info)
1556 .shape(IconButtonShape::Square)
1557 .tooltip(|window, cx| {
1558 Tooltip::for_action("Confirm Assist", &menu::Confirm, window, cx)
1559 })
1560 .on_click(cx.listener(|_, _, _, cx| {
1561 cx.emit(PromptEditorEvent::ConfirmRequested);
1562 }))
1563 .into_any_element()
1564 } else {
1565 div().into_any_element()
1566 },
1567 ]
1568 }
1569 });
1570
1571 h_flex()
1572 .key_context("PromptEditor")
1573 .bg(cx.theme().colors().editor_background)
1574 .block_mouse_down()
1575 .cursor(CursorStyle::Arrow)
1576 .border_y_1()
1577 .border_color(cx.theme().status().info_border)
1578 .size_full()
1579 .py(window.line_height() / 2.5)
1580 .on_action(cx.listener(Self::confirm))
1581 .on_action(cx.listener(Self::cancel))
1582 .on_action(cx.listener(Self::restart))
1583 .on_action(cx.listener(Self::move_up))
1584 .on_action(cx.listener(Self::move_down))
1585 .capture_action(cx.listener(Self::cycle_prev))
1586 .capture_action(cx.listener(Self::cycle_next))
1587 .child(
1588 h_flex()
1589 .w(gutter_dimensions.full_width() + (gutter_dimensions.margin / 2.0))
1590 .justify_center()
1591 .gap_2()
1592 .child(inline_language_model_selector({
1593 let fs = self.fs.clone();
1594 move |model, cx| {
1595 update_settings_file::<AssistantSettings>(
1596 fs.clone(),
1597 cx,
1598 move |settings, _| settings.set_model(model.clone()),
1599 );
1600 }
1601 }))
1602 .map(|el| {
1603 let CodegenStatus::Error(error) = self.codegen.read(cx).status(cx) else {
1604 return el;
1605 };
1606
1607 let error_message = SharedString::from(error.to_string());
1608 if error.error_code() == proto::ErrorCode::RateLimitExceeded
1609 && cx.has_flag::<ZedPro>()
1610 {
1611 el.child(
1612 v_flex()
1613 .child(
1614 IconButton::new("rate-limit-error", IconName::XCircle)
1615 .toggle_state(self.show_rate_limit_notice)
1616 .shape(IconButtonShape::Square)
1617 .icon_size(IconSize::Small)
1618 .on_click(cx.listener(Self::toggle_rate_limit_notice)),
1619 )
1620 .children(self.show_rate_limit_notice.then(|| {
1621 deferred(
1622 anchored()
1623 .position_mode(gpui::AnchoredPositionMode::Local)
1624 .position(point(px(0.), px(24.)))
1625 .anchor(gpui::Corner::TopLeft)
1626 .child(self.render_rate_limit_notice(cx)),
1627 )
1628 })),
1629 )
1630 } else {
1631 el.child(
1632 div()
1633 .id("error")
1634 .tooltip(Tooltip::text(error_message))
1635 .child(
1636 Icon::new(IconName::XCircle)
1637 .size(IconSize::Small)
1638 .color(Color::Error),
1639 ),
1640 )
1641 }
1642 }),
1643 )
1644 .child(div().flex_1().child(self.render_prompt_editor(cx)))
1645 .child(
1646 h_flex()
1647 .gap_2()
1648 .pr_6()
1649 .children(self.render_token_count(cx))
1650 .children(buttons),
1651 )
1652 }
1653}
1654
1655impl Focusable for PromptEditor {
1656 fn focus_handle(&self, cx: &App) -> FocusHandle {
1657 self.editor.focus_handle(cx)
1658 }
1659}
1660
1661impl PromptEditor {
1662 const MAX_LINES: u8 = 8;
1663
1664 #[allow(clippy::too_many_arguments)]
1665 fn new(
1666 id: InlineAssistId,
1667 gutter_dimensions: Arc<Mutex<GutterDimensions>>,
1668 prompt_history: VecDeque<String>,
1669 prompt_buffer: Entity<MultiBuffer>,
1670 codegen: Entity<Codegen>,
1671 parent_editor: &Entity<Editor>,
1672 assistant_panel: Option<&Entity<AssistantPanel>>,
1673 workspace: Option<WeakEntity<Workspace>>,
1674 fs: Arc<dyn Fs>,
1675 window: &mut Window,
1676 cx: &mut Context<Self>,
1677 ) -> Self {
1678 let prompt_editor = cx.new(|cx| {
1679 let mut editor = Editor::new(
1680 EditorMode::AutoHeight {
1681 max_lines: Self::MAX_LINES as usize,
1682 },
1683 prompt_buffer,
1684 None,
1685 false,
1686 window,
1687 cx,
1688 );
1689 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
1690 // Since the prompt editors for all inline assistants are linked,
1691 // always show the cursor (even when it isn't focused) because
1692 // typing in one will make what you typed appear in all of them.
1693 editor.set_show_cursor_when_unfocused(true, cx);
1694 editor.set_placeholder_text(Self::placeholder_text(codegen.read(cx), window, cx), cx);
1695 editor
1696 });
1697
1698 let mut token_count_subscriptions = Vec::new();
1699 token_count_subscriptions.push(cx.subscribe_in(
1700 parent_editor,
1701 window,
1702 Self::handle_parent_editor_event,
1703 ));
1704 if let Some(assistant_panel) = assistant_panel {
1705 token_count_subscriptions.push(cx.subscribe_in(
1706 assistant_panel,
1707 window,
1708 Self::handle_assistant_panel_event,
1709 ));
1710 }
1711
1712 let mut this = Self {
1713 id,
1714 fs,
1715 editor: prompt_editor,
1716 edited_since_done: false,
1717 gutter_dimensions,
1718 prompt_history,
1719 prompt_history_ix: None,
1720 pending_prompt: String::new(),
1721 _codegen_subscription: cx.observe(&codegen, Self::handle_codegen_changed),
1722 editor_subscriptions: Vec::new(),
1723 codegen,
1724 pending_token_count: Task::ready(Ok(())),
1725 token_counts: None,
1726 _token_count_subscriptions: token_count_subscriptions,
1727 workspace,
1728 show_rate_limit_notice: false,
1729 };
1730 this.count_tokens(cx);
1731 this.subscribe_to_editor(window, cx);
1732 this
1733 }
1734
1735 fn subscribe_to_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1736 self.editor_subscriptions.clear();
1737 self.editor_subscriptions.push(cx.subscribe_in(
1738 &self.editor,
1739 window,
1740 Self::handle_prompt_editor_events,
1741 ));
1742 }
1743
1744 fn set_show_cursor_when_unfocused(
1745 &mut self,
1746 show_cursor_when_unfocused: bool,
1747 cx: &mut Context<Self>,
1748 ) {
1749 self.editor.update(cx, |editor, cx| {
1750 editor.set_show_cursor_when_unfocused(show_cursor_when_unfocused, cx)
1751 });
1752 }
1753
1754 fn unlink(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1755 let prompt = self.prompt(cx);
1756 let focus = self.editor.focus_handle(cx).contains_focused(window, cx);
1757 self.editor = cx.new(|cx| {
1758 let mut editor = Editor::auto_height(Self::MAX_LINES as usize, window, cx);
1759 editor.set_soft_wrap_mode(language::language_settings::SoftWrap::EditorWidth, cx);
1760 editor.set_placeholder_text(
1761 Self::placeholder_text(self.codegen.read(cx), window, cx),
1762 cx,
1763 );
1764 editor.set_placeholder_text("Add a prompt…", cx);
1765 editor.set_text(prompt, window, cx);
1766 if focus {
1767 window.focus(&editor.focus_handle(cx));
1768 }
1769 editor
1770 });
1771 self.subscribe_to_editor(window, cx);
1772 }
1773
1774 fn placeholder_text(codegen: &Codegen, window: &Window, cx: &App) -> String {
1775 let context_keybinding = text_for_action(&zed_actions::assistant::ToggleFocus, window, cx)
1776 .map(|keybinding| format!(" • {keybinding} for context"))
1777 .unwrap_or_default();
1778
1779 let action = if codegen.is_insertion {
1780 "Generate"
1781 } else {
1782 "Transform"
1783 };
1784
1785 format!("{action}…{context_keybinding} • ↓↑ for history")
1786 }
1787
1788 fn prompt(&self, cx: &App) -> String {
1789 self.editor.read(cx).text(cx)
1790 }
1791
1792 fn toggle_rate_limit_notice(
1793 &mut self,
1794 _: &ClickEvent,
1795 window: &mut Window,
1796 cx: &mut Context<Self>,
1797 ) {
1798 self.show_rate_limit_notice = !self.show_rate_limit_notice;
1799 if self.show_rate_limit_notice {
1800 window.focus(&self.editor.focus_handle(cx));
1801 }
1802 cx.notify();
1803 }
1804
1805 fn handle_parent_editor_event(
1806 &mut self,
1807 _: &Entity<Editor>,
1808 event: &EditorEvent,
1809 _: &mut Window,
1810 cx: &mut Context<Self>,
1811 ) {
1812 if let EditorEvent::BufferEdited { .. } = event {
1813 self.count_tokens(cx);
1814 }
1815 }
1816
1817 fn handle_assistant_panel_event(
1818 &mut self,
1819 _: &Entity<AssistantPanel>,
1820 event: &AssistantPanelEvent,
1821 _: &mut Window,
1822 cx: &mut Context<Self>,
1823 ) {
1824 let AssistantPanelEvent::ContextEdited { .. } = event;
1825 self.count_tokens(cx);
1826 }
1827
1828 fn count_tokens(&mut self, cx: &mut Context<Self>) {
1829 let assist_id = self.id;
1830 self.pending_token_count = cx.spawn(|this, mut cx| async move {
1831 cx.background_executor().timer(Duration::from_secs(1)).await;
1832 let token_count = cx
1833 .update_global(|inline_assistant: &mut InlineAssistant, cx| {
1834 let assist = inline_assistant
1835 .assists
1836 .get(&assist_id)
1837 .context("assist not found")?;
1838 anyhow::Ok(assist.count_tokens(cx))
1839 })??
1840 .await?;
1841
1842 this.update(&mut cx, |this, cx| {
1843 this.token_counts = Some(token_count);
1844 cx.notify();
1845 })
1846 })
1847 }
1848
1849 fn handle_prompt_editor_events(
1850 &mut self,
1851 _: &Entity<Editor>,
1852 event: &EditorEvent,
1853 window: &mut Window,
1854 cx: &mut Context<Self>,
1855 ) {
1856 match event {
1857 EditorEvent::Edited { .. } => {
1858 if let Some(workspace) = window.root::<Workspace>().flatten() {
1859 workspace.update(cx, |workspace, cx| {
1860 let is_via_ssh = workspace
1861 .project()
1862 .update(cx, |project, _| project.is_via_ssh());
1863
1864 workspace
1865 .client()
1866 .telemetry()
1867 .log_edit_event("inline assist", is_via_ssh);
1868 });
1869 }
1870 let prompt = self.editor.read(cx).text(cx);
1871 if self
1872 .prompt_history_ix
1873 .map_or(true, |ix| self.prompt_history[ix] != prompt)
1874 {
1875 self.prompt_history_ix.take();
1876 self.pending_prompt = prompt;
1877 }
1878
1879 self.edited_since_done = true;
1880 cx.notify();
1881 }
1882 EditorEvent::BufferEdited => {
1883 self.count_tokens(cx);
1884 }
1885 EditorEvent::Blurred => {
1886 if self.show_rate_limit_notice {
1887 self.show_rate_limit_notice = false;
1888 cx.notify();
1889 }
1890 }
1891 _ => {}
1892 }
1893 }
1894
1895 fn handle_codegen_changed(&mut self, _: Entity<Codegen>, cx: &mut Context<Self>) {
1896 match self.codegen.read(cx).status(cx) {
1897 CodegenStatus::Idle => {
1898 self.editor
1899 .update(cx, |editor, _| editor.set_read_only(false));
1900 }
1901 CodegenStatus::Pending => {
1902 self.editor
1903 .update(cx, |editor, _| editor.set_read_only(true));
1904 }
1905 CodegenStatus::Done => {
1906 self.edited_since_done = false;
1907 self.editor
1908 .update(cx, |editor, _| editor.set_read_only(false));
1909 }
1910 CodegenStatus::Error(error) => {
1911 if cx.has_flag::<ZedPro>()
1912 && error.error_code() == proto::ErrorCode::RateLimitExceeded
1913 && !dismissed_rate_limit_notice()
1914 {
1915 self.show_rate_limit_notice = true;
1916 cx.notify();
1917 }
1918
1919 self.edited_since_done = false;
1920 self.editor
1921 .update(cx, |editor, _| editor.set_read_only(false));
1922 }
1923 }
1924 }
1925
1926 fn restart(&mut self, _: &menu::Restart, _window: &mut Window, cx: &mut Context<Self>) {
1927 cx.emit(PromptEditorEvent::StartRequested);
1928 }
1929
1930 fn cancel(
1931 &mut self,
1932 _: &editor::actions::Cancel,
1933 _window: &mut Window,
1934 cx: &mut Context<Self>,
1935 ) {
1936 match self.codegen.read(cx).status(cx) {
1937 CodegenStatus::Idle | CodegenStatus::Done | CodegenStatus::Error(_) => {
1938 cx.emit(PromptEditorEvent::CancelRequested);
1939 }
1940 CodegenStatus::Pending => {
1941 cx.emit(PromptEditorEvent::StopRequested);
1942 }
1943 }
1944 }
1945
1946 fn confirm(&mut self, _: &menu::Confirm, _window: &mut Window, cx: &mut Context<Self>) {
1947 match self.codegen.read(cx).status(cx) {
1948 CodegenStatus::Idle => {
1949 cx.emit(PromptEditorEvent::StartRequested);
1950 }
1951 CodegenStatus::Pending => {
1952 cx.emit(PromptEditorEvent::DismissRequested);
1953 }
1954 CodegenStatus::Done => {
1955 if self.edited_since_done {
1956 cx.emit(PromptEditorEvent::StartRequested);
1957 } else {
1958 cx.emit(PromptEditorEvent::ConfirmRequested);
1959 }
1960 }
1961 CodegenStatus::Error(_) => {
1962 cx.emit(PromptEditorEvent::StartRequested);
1963 }
1964 }
1965 }
1966
1967 fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1968 if let Some(ix) = self.prompt_history_ix {
1969 if ix > 0 {
1970 self.prompt_history_ix = Some(ix - 1);
1971 let prompt = self.prompt_history[ix - 1].as_str();
1972 self.editor.update(cx, |editor, cx| {
1973 editor.set_text(prompt, window, cx);
1974 editor.move_to_beginning(&Default::default(), window, cx);
1975 });
1976 }
1977 } else if !self.prompt_history.is_empty() {
1978 self.prompt_history_ix = Some(self.prompt_history.len() - 1);
1979 let prompt = self.prompt_history[self.prompt_history.len() - 1].as_str();
1980 self.editor.update(cx, |editor, cx| {
1981 editor.set_text(prompt, window, cx);
1982 editor.move_to_beginning(&Default::default(), window, cx);
1983 });
1984 }
1985 }
1986
1987 fn move_down(&mut self, _: &MoveDown, window: &mut Window, cx: &mut Context<Self>) {
1988 if let Some(ix) = self.prompt_history_ix {
1989 if ix < self.prompt_history.len() - 1 {
1990 self.prompt_history_ix = Some(ix + 1);
1991 let prompt = self.prompt_history[ix + 1].as_str();
1992 self.editor.update(cx, |editor, cx| {
1993 editor.set_text(prompt, window, cx);
1994 editor.move_to_end(&Default::default(), window, cx)
1995 });
1996 } else {
1997 self.prompt_history_ix = None;
1998 let prompt = self.pending_prompt.as_str();
1999 self.editor.update(cx, |editor, cx| {
2000 editor.set_text(prompt, window, cx);
2001 editor.move_to_end(&Default::default(), window, cx)
2002 });
2003 }
2004 }
2005 }
2006
2007 fn cycle_prev(
2008 &mut self,
2009 _: &CyclePreviousInlineAssist,
2010 _: &mut Window,
2011 cx: &mut Context<Self>,
2012 ) {
2013 self.codegen
2014 .update(cx, |codegen, cx| codegen.cycle_prev(cx));
2015 }
2016
2017 fn cycle_next(&mut self, _: &CycleNextInlineAssist, _: &mut Window, cx: &mut Context<Self>) {
2018 self.codegen
2019 .update(cx, |codegen, cx| codegen.cycle_next(cx));
2020 }
2021
2022 fn render_cycle_controls(&self, cx: &Context<Self>) -> AnyElement {
2023 let codegen = self.codegen.read(cx);
2024 let disabled = matches!(codegen.status(cx), CodegenStatus::Idle);
2025
2026 let model_registry = LanguageModelRegistry::read_global(cx);
2027 let default_model = model_registry.active_model();
2028 let alternative_models = model_registry.inline_alternative_models();
2029
2030 let get_model_name = |index: usize| -> String {
2031 let name = |model: &Arc<dyn LanguageModel>| model.name().0.to_string();
2032
2033 match index {
2034 0 => default_model.as_ref().map_or_else(String::new, name),
2035 index if index <= alternative_models.len() => alternative_models
2036 .get(index - 1)
2037 .map_or_else(String::new, name),
2038 _ => String::new(),
2039 }
2040 };
2041
2042 let total_models = alternative_models.len() + 1;
2043
2044 if total_models <= 1 {
2045 return div().into_any_element();
2046 }
2047
2048 let current_index = codegen.active_alternative;
2049 let prev_index = (current_index + total_models - 1) % total_models;
2050 let next_index = (current_index + 1) % total_models;
2051
2052 let prev_model_name = get_model_name(prev_index);
2053 let next_model_name = get_model_name(next_index);
2054
2055 h_flex()
2056 .child(
2057 IconButton::new("previous", IconName::ChevronLeft)
2058 .icon_color(Color::Muted)
2059 .disabled(disabled || current_index == 0)
2060 .shape(IconButtonShape::Square)
2061 .tooltip({
2062 let focus_handle = self.editor.focus_handle(cx);
2063 move |window, cx| {
2064 cx.new(|cx| {
2065 let mut tooltip = Tooltip::new("Previous Alternative").key_binding(
2066 KeyBinding::for_action_in(
2067 &CyclePreviousInlineAssist,
2068 &focus_handle,
2069 window,
2070 cx,
2071 ),
2072 );
2073 if !disabled && current_index != 0 {
2074 tooltip = tooltip.meta(prev_model_name.clone());
2075 }
2076 tooltip
2077 })
2078 .into()
2079 }
2080 })
2081 .on_click(cx.listener(|this, _, _, cx| {
2082 this.codegen
2083 .update(cx, |codegen, cx| codegen.cycle_prev(cx))
2084 })),
2085 )
2086 .child(
2087 Label::new(format!(
2088 "{}/{}",
2089 codegen.active_alternative + 1,
2090 codegen.alternative_count(cx)
2091 ))
2092 .size(LabelSize::Small)
2093 .color(if disabled {
2094 Color::Disabled
2095 } else {
2096 Color::Muted
2097 }),
2098 )
2099 .child(
2100 IconButton::new("next", IconName::ChevronRight)
2101 .icon_color(Color::Muted)
2102 .disabled(disabled || current_index == total_models - 1)
2103 .shape(IconButtonShape::Square)
2104 .tooltip({
2105 let focus_handle = self.editor.focus_handle(cx);
2106 move |window, cx| {
2107 cx.new(|cx| {
2108 let mut tooltip = Tooltip::new("Next Alternative").key_binding(
2109 KeyBinding::for_action_in(
2110 &CycleNextInlineAssist,
2111 &focus_handle,
2112 window,
2113 cx,
2114 ),
2115 );
2116 if !disabled && current_index != total_models - 1 {
2117 tooltip = tooltip.meta(next_model_name.clone());
2118 }
2119 tooltip
2120 })
2121 .into()
2122 }
2123 })
2124 .on_click(cx.listener(|this, _, _, cx| {
2125 this.codegen
2126 .update(cx, |codegen, cx| codegen.cycle_next(cx))
2127 })),
2128 )
2129 .into_any_element()
2130 }
2131
2132 fn render_token_count(&self, cx: &mut Context<Self>) -> Option<impl IntoElement> {
2133 let model = LanguageModelRegistry::read_global(cx).active_model()?;
2134 let token_counts = self.token_counts?;
2135 let max_token_count = model.max_token_count();
2136
2137 let remaining_tokens = max_token_count as isize - token_counts.total as isize;
2138 let token_count_color = if remaining_tokens <= 0 {
2139 Color::Error
2140 } else if token_counts.total as f32 / max_token_count as f32 >= 0.8 {
2141 Color::Warning
2142 } else {
2143 Color::Muted
2144 };
2145
2146 let mut token_count = h_flex()
2147 .id("token_count")
2148 .gap_0p5()
2149 .child(
2150 Label::new(humanize_token_count(token_counts.total))
2151 .size(LabelSize::Small)
2152 .color(token_count_color),
2153 )
2154 .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2155 .child(
2156 Label::new(humanize_token_count(max_token_count))
2157 .size(LabelSize::Small)
2158 .color(Color::Muted),
2159 );
2160 if let Some(workspace) = self.workspace.clone() {
2161 token_count = token_count
2162 .tooltip(move |window, cx| {
2163 Tooltip::with_meta(
2164 format!(
2165 "Tokens Used ({} from the Assistant Panel)",
2166 humanize_token_count(token_counts.assistant_panel)
2167 ),
2168 None,
2169 "Click to open the Assistant Panel",
2170 window,
2171 cx,
2172 )
2173 })
2174 .cursor_pointer()
2175 .on_mouse_down(gpui::MouseButton::Left, |_, _, cx| cx.stop_propagation())
2176 .on_click(move |_, window, cx| {
2177 cx.stop_propagation();
2178 workspace
2179 .update(cx, |workspace, cx| {
2180 workspace.focus_panel::<AssistantPanel>(window, cx)
2181 })
2182 .ok();
2183 });
2184 } else {
2185 token_count = token_count
2186 .cursor_default()
2187 .tooltip(Tooltip::text("Tokens used"));
2188 }
2189
2190 Some(token_count)
2191 }
2192
2193 fn render_prompt_editor(&self, cx: &mut Context<Self>) -> impl IntoElement {
2194 let settings = ThemeSettings::get_global(cx);
2195 let text_style = TextStyle {
2196 color: if self.editor.read(cx).read_only(cx) {
2197 cx.theme().colors().text_disabled
2198 } else {
2199 cx.theme().colors().text
2200 },
2201 font_family: settings.buffer_font.family.clone(),
2202 font_fallbacks: settings.buffer_font.fallbacks.clone(),
2203 font_size: settings.buffer_font_size(cx).into(),
2204 font_weight: settings.buffer_font.weight,
2205 line_height: relative(settings.buffer_line_height.value()),
2206 ..Default::default()
2207 };
2208 EditorElement::new(
2209 &self.editor,
2210 EditorStyle {
2211 background: cx.theme().colors().editor_background,
2212 local_player: cx.theme().players().local(),
2213 text: text_style,
2214 ..Default::default()
2215 },
2216 )
2217 }
2218
2219 fn render_rate_limit_notice(&self, cx: &mut Context<Self>) -> impl IntoElement {
2220 Popover::new().child(
2221 v_flex()
2222 .occlude()
2223 .p_2()
2224 .child(
2225 Label::new("Out of Tokens")
2226 .size(LabelSize::Small)
2227 .weight(FontWeight::BOLD),
2228 )
2229 .child(Label::new(
2230 "Try Zed Pro for higher limits, a wider range of models, and more.",
2231 ))
2232 .child(
2233 h_flex()
2234 .justify_between()
2235 .child(CheckboxWithLabel::new(
2236 "dont-show-again",
2237 Label::new("Don't show again"),
2238 if dismissed_rate_limit_notice() {
2239 ui::ToggleState::Selected
2240 } else {
2241 ui::ToggleState::Unselected
2242 },
2243 |selection, _, cx| {
2244 let is_dismissed = match selection {
2245 ui::ToggleState::Unselected => false,
2246 ui::ToggleState::Indeterminate => return,
2247 ui::ToggleState::Selected => true,
2248 };
2249
2250 set_rate_limit_notice_dismissed(is_dismissed, cx)
2251 },
2252 ))
2253 .child(
2254 h_flex()
2255 .gap_2()
2256 .child(
2257 Button::new("dismiss", "Dismiss")
2258 .style(ButtonStyle::Transparent)
2259 .on_click(cx.listener(Self::toggle_rate_limit_notice)),
2260 )
2261 .child(Button::new("more-info", "More Info").on_click(
2262 |_event, window, cx| {
2263 window.dispatch_action(
2264 Box::new(zed_actions::OpenAccountSettings),
2265 cx,
2266 )
2267 },
2268 )),
2269 ),
2270 ),
2271 )
2272 }
2273}
2274
2275const DISMISSED_RATE_LIMIT_NOTICE_KEY: &str = "dismissed-rate-limit-notice";
2276
2277fn dismissed_rate_limit_notice() -> bool {
2278 db::kvp::KEY_VALUE_STORE
2279 .read_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY)
2280 .log_err()
2281 .map_or(false, |s| s.is_some())
2282}
2283
2284fn set_rate_limit_notice_dismissed(is_dismissed: bool, cx: &mut App) {
2285 db::write_and_log(cx, move || async move {
2286 if is_dismissed {
2287 db::kvp::KEY_VALUE_STORE
2288 .write_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY.into(), "1".into())
2289 .await
2290 } else {
2291 db::kvp::KEY_VALUE_STORE
2292 .delete_kvp(DISMISSED_RATE_LIMIT_NOTICE_KEY.into())
2293 .await
2294 }
2295 })
2296}
2297
2298struct InlineAssist {
2299 group_id: InlineAssistGroupId,
2300 range: Range<Anchor>,
2301 editor: WeakEntity<Editor>,
2302 decorations: Option<InlineAssistDecorations>,
2303 codegen: Entity<Codegen>,
2304 _subscriptions: Vec<Subscription>,
2305 workspace: Option<WeakEntity<Workspace>>,
2306 include_context: bool,
2307}
2308
2309impl InlineAssist {
2310 #[allow(clippy::too_many_arguments)]
2311 fn new(
2312 assist_id: InlineAssistId,
2313 group_id: InlineAssistGroupId,
2314 include_context: bool,
2315 editor: &Entity<Editor>,
2316 prompt_editor: &Entity<PromptEditor>,
2317 prompt_block_id: CustomBlockId,
2318 end_block_id: CustomBlockId,
2319 range: Range<Anchor>,
2320 codegen: Entity<Codegen>,
2321 workspace: Option<WeakEntity<Workspace>>,
2322 window: &mut Window,
2323 cx: &mut App,
2324 ) -> Self {
2325 let prompt_editor_focus_handle = prompt_editor.focus_handle(cx);
2326 InlineAssist {
2327 group_id,
2328 include_context,
2329 editor: editor.downgrade(),
2330 decorations: Some(InlineAssistDecorations {
2331 prompt_block_id,
2332 prompt_editor: prompt_editor.clone(),
2333 removed_line_block_ids: HashSet::default(),
2334 end_block_id,
2335 }),
2336 range,
2337 codegen: codegen.clone(),
2338 workspace: workspace.clone(),
2339 _subscriptions: vec![
2340 window.on_focus_in(&prompt_editor_focus_handle, cx, move |_, cx| {
2341 InlineAssistant::update_global(cx, |this, cx| {
2342 this.handle_prompt_editor_focus_in(assist_id, cx)
2343 })
2344 }),
2345 window.on_focus_out(&prompt_editor_focus_handle, cx, move |_, _, cx| {
2346 InlineAssistant::update_global(cx, |this, cx| {
2347 this.handle_prompt_editor_focus_out(assist_id, cx)
2348 })
2349 }),
2350 window.subscribe(
2351 prompt_editor,
2352 cx,
2353 move |prompt_editor, event, window, cx| {
2354 InlineAssistant::update_global(cx, |this, cx| {
2355 this.handle_prompt_editor_event(prompt_editor, event, window, cx)
2356 })
2357 },
2358 ),
2359 window.observe(&codegen, cx, {
2360 let editor = editor.downgrade();
2361 move |_, window, cx| {
2362 if let Some(editor) = editor.upgrade() {
2363 InlineAssistant::update_global(cx, |this, cx| {
2364 if let Some(editor_assists) =
2365 this.assists_by_editor.get(&editor.downgrade())
2366 {
2367 editor_assists.highlight_updates.send(()).ok();
2368 }
2369
2370 this.update_editor_blocks(&editor, assist_id, window, cx);
2371 })
2372 }
2373 }
2374 }),
2375 window.subscribe(&codegen, cx, move |codegen, event, window, cx| {
2376 InlineAssistant::update_global(cx, |this, cx| match event {
2377 CodegenEvent::Undone => this.finish_assist(assist_id, false, window, cx),
2378 CodegenEvent::Finished => {
2379 let assist = if let Some(assist) = this.assists.get(&assist_id) {
2380 assist
2381 } else {
2382 return;
2383 };
2384
2385 if let CodegenStatus::Error(error) = codegen.read(cx).status(cx) {
2386 if assist.decorations.is_none() {
2387 if let Some(workspace) = assist
2388 .workspace
2389 .as_ref()
2390 .and_then(|workspace| workspace.upgrade())
2391 {
2392 let error = format!("Inline assistant error: {}", error);
2393 workspace.update(cx, |workspace, cx| {
2394 struct InlineAssistantError;
2395
2396 let id =
2397 NotificationId::composite::<InlineAssistantError>(
2398 assist_id.0,
2399 );
2400
2401 workspace.show_toast(Toast::new(id, error), cx);
2402 })
2403 }
2404 }
2405 }
2406
2407 if assist.decorations.is_none() {
2408 this.finish_assist(assist_id, false, window, cx);
2409 }
2410 }
2411 })
2412 }),
2413 ],
2414 }
2415 }
2416
2417 fn user_prompt(&self, cx: &App) -> Option<String> {
2418 let decorations = self.decorations.as_ref()?;
2419 Some(decorations.prompt_editor.read(cx).prompt(cx))
2420 }
2421
2422 fn assistant_panel_context(&self, cx: &mut App) -> Option<LanguageModelRequest> {
2423 if self.include_context {
2424 let workspace = self.workspace.as_ref()?;
2425 let workspace = workspace.upgrade()?.read(cx);
2426 let assistant_panel = workspace.panel::<AssistantPanel>(cx)?;
2427 Some(
2428 assistant_panel
2429 .read(cx)
2430 .active_context(cx)?
2431 .read(cx)
2432 .to_completion_request(RequestType::Chat, cx),
2433 )
2434 } else {
2435 None
2436 }
2437 }
2438
2439 pub fn count_tokens(&self, cx: &mut App) -> BoxFuture<'static, Result<TokenCounts>> {
2440 let Some(user_prompt) = self.user_prompt(cx) else {
2441 return future::ready(Err(anyhow!("no user prompt"))).boxed();
2442 };
2443 let assistant_panel_context = self.assistant_panel_context(cx);
2444 self.codegen
2445 .read(cx)
2446 .count_tokens(user_prompt, assistant_panel_context, cx)
2447 }
2448}
2449
2450struct InlineAssistDecorations {
2451 prompt_block_id: CustomBlockId,
2452 prompt_editor: Entity<PromptEditor>,
2453 removed_line_block_ids: HashSet<CustomBlockId>,
2454 end_block_id: CustomBlockId,
2455}
2456
2457#[derive(Copy, Clone, Debug)]
2458pub enum CodegenEvent {
2459 Finished,
2460 Undone,
2461}
2462
2463pub struct Codegen {
2464 alternatives: Vec<Entity<CodegenAlternative>>,
2465 active_alternative: usize,
2466 seen_alternatives: HashSet<usize>,
2467 subscriptions: Vec<Subscription>,
2468 buffer: Entity<MultiBuffer>,
2469 range: Range<Anchor>,
2470 initial_transaction_id: Option<TransactionId>,
2471 telemetry: Arc<Telemetry>,
2472 builder: Arc<PromptBuilder>,
2473 is_insertion: bool,
2474}
2475
2476impl Codegen {
2477 pub fn new(
2478 buffer: Entity<MultiBuffer>,
2479 range: Range<Anchor>,
2480 initial_transaction_id: Option<TransactionId>,
2481 telemetry: Arc<Telemetry>,
2482 builder: Arc<PromptBuilder>,
2483 cx: &mut Context<Self>,
2484 ) -> Self {
2485 let codegen = cx.new(|cx| {
2486 CodegenAlternative::new(
2487 buffer.clone(),
2488 range.clone(),
2489 false,
2490 Some(telemetry.clone()),
2491 builder.clone(),
2492 cx,
2493 )
2494 });
2495 let mut this = Self {
2496 is_insertion: range.to_offset(&buffer.read(cx).snapshot(cx)).is_empty(),
2497 alternatives: vec![codegen],
2498 active_alternative: 0,
2499 seen_alternatives: HashSet::default(),
2500 subscriptions: Vec::new(),
2501 buffer,
2502 range,
2503 initial_transaction_id,
2504 telemetry,
2505 builder,
2506 };
2507 this.activate(0, cx);
2508 this
2509 }
2510
2511 fn subscribe_to_alternative(&mut self, cx: &mut Context<Self>) {
2512 let codegen = self.active_alternative().clone();
2513 self.subscriptions.clear();
2514 self.subscriptions
2515 .push(cx.observe(&codegen, |_, _, cx| cx.notify()));
2516 self.subscriptions
2517 .push(cx.subscribe(&codegen, |_, _, event, cx| cx.emit(*event)));
2518 }
2519
2520 fn active_alternative(&self) -> &Entity<CodegenAlternative> {
2521 &self.alternatives[self.active_alternative]
2522 }
2523
2524 fn status<'a>(&self, cx: &'a App) -> &'a CodegenStatus {
2525 &self.active_alternative().read(cx).status
2526 }
2527
2528 fn alternative_count(&self, cx: &App) -> usize {
2529 LanguageModelRegistry::read_global(cx)
2530 .inline_alternative_models()
2531 .len()
2532 + 1
2533 }
2534
2535 pub fn cycle_prev(&mut self, cx: &mut Context<Self>) {
2536 let next_active_ix = if self.active_alternative == 0 {
2537 self.alternatives.len() - 1
2538 } else {
2539 self.active_alternative - 1
2540 };
2541 self.activate(next_active_ix, cx);
2542 }
2543
2544 pub fn cycle_next(&mut self, cx: &mut Context<Self>) {
2545 let next_active_ix = (self.active_alternative + 1) % self.alternatives.len();
2546 self.activate(next_active_ix, cx);
2547 }
2548
2549 fn activate(&mut self, index: usize, cx: &mut Context<Self>) {
2550 self.active_alternative()
2551 .update(cx, |codegen, cx| codegen.set_active(false, cx));
2552 self.seen_alternatives.insert(index);
2553 self.active_alternative = index;
2554 self.active_alternative()
2555 .update(cx, |codegen, cx| codegen.set_active(true, cx));
2556 self.subscribe_to_alternative(cx);
2557 cx.notify();
2558 }
2559
2560 pub fn start(
2561 &mut self,
2562 user_prompt: String,
2563 assistant_panel_context: Option<LanguageModelRequest>,
2564 cx: &mut Context<Self>,
2565 ) -> Result<()> {
2566 let alternative_models = LanguageModelRegistry::read_global(cx)
2567 .inline_alternative_models()
2568 .to_vec();
2569
2570 self.active_alternative()
2571 .update(cx, |alternative, cx| alternative.undo(cx));
2572 self.activate(0, cx);
2573 self.alternatives.truncate(1);
2574
2575 for _ in 0..alternative_models.len() {
2576 self.alternatives.push(cx.new(|cx| {
2577 CodegenAlternative::new(
2578 self.buffer.clone(),
2579 self.range.clone(),
2580 false,
2581 Some(self.telemetry.clone()),
2582 self.builder.clone(),
2583 cx,
2584 )
2585 }));
2586 }
2587
2588 let primary_model = LanguageModelRegistry::read_global(cx)
2589 .active_model()
2590 .context("no active model")?;
2591
2592 for (model, alternative) in iter::once(primary_model)
2593 .chain(alternative_models)
2594 .zip(&self.alternatives)
2595 {
2596 alternative.update(cx, |alternative, cx| {
2597 alternative.start(
2598 user_prompt.clone(),
2599 assistant_panel_context.clone(),
2600 model.clone(),
2601 cx,
2602 )
2603 })?;
2604 }
2605
2606 Ok(())
2607 }
2608
2609 pub fn stop(&mut self, cx: &mut Context<Self>) {
2610 for codegen in &self.alternatives {
2611 codegen.update(cx, |codegen, cx| codegen.stop(cx));
2612 }
2613 }
2614
2615 pub fn undo(&mut self, cx: &mut Context<Self>) {
2616 self.active_alternative()
2617 .update(cx, |codegen, cx| codegen.undo(cx));
2618
2619 self.buffer.update(cx, |buffer, cx| {
2620 if let Some(transaction_id) = self.initial_transaction_id.take() {
2621 buffer.undo_transaction(transaction_id, cx);
2622 buffer.refresh_preview(cx);
2623 }
2624 });
2625 }
2626
2627 pub fn count_tokens(
2628 &self,
2629 user_prompt: String,
2630 assistant_panel_context: Option<LanguageModelRequest>,
2631 cx: &App,
2632 ) -> BoxFuture<'static, Result<TokenCounts>> {
2633 self.active_alternative()
2634 .read(cx)
2635 .count_tokens(user_prompt, assistant_panel_context, cx)
2636 }
2637
2638 pub fn buffer(&self, cx: &App) -> Entity<MultiBuffer> {
2639 self.active_alternative().read(cx).buffer.clone()
2640 }
2641
2642 pub fn old_buffer(&self, cx: &App) -> Entity<Buffer> {
2643 self.active_alternative().read(cx).old_buffer.clone()
2644 }
2645
2646 pub fn snapshot(&self, cx: &App) -> MultiBufferSnapshot {
2647 self.active_alternative().read(cx).snapshot.clone()
2648 }
2649
2650 pub fn edit_position(&self, cx: &App) -> Option<Anchor> {
2651 self.active_alternative().read(cx).edit_position
2652 }
2653
2654 fn diff<'a>(&self, cx: &'a App) -> &'a Diff {
2655 &self.active_alternative().read(cx).diff
2656 }
2657
2658 pub fn last_equal_ranges<'a>(&self, cx: &'a App) -> &'a [Range<Anchor>] {
2659 self.active_alternative().read(cx).last_equal_ranges()
2660 }
2661}
2662
2663impl EventEmitter<CodegenEvent> for Codegen {}
2664
2665pub struct CodegenAlternative {
2666 buffer: Entity<MultiBuffer>,
2667 old_buffer: Entity<Buffer>,
2668 snapshot: MultiBufferSnapshot,
2669 edit_position: Option<Anchor>,
2670 range: Range<Anchor>,
2671 last_equal_ranges: Vec<Range<Anchor>>,
2672 transformation_transaction_id: Option<TransactionId>,
2673 status: CodegenStatus,
2674 generation: Task<()>,
2675 diff: Diff,
2676 telemetry: Option<Arc<Telemetry>>,
2677 _subscription: gpui::Subscription,
2678 builder: Arc<PromptBuilder>,
2679 active: bool,
2680 edits: Vec<(Range<Anchor>, String)>,
2681 line_operations: Vec<LineOperation>,
2682 request: Option<LanguageModelRequest>,
2683 elapsed_time: Option<f64>,
2684 completion: Option<String>,
2685 message_id: Option<String>,
2686}
2687
2688enum CodegenStatus {
2689 Idle,
2690 Pending,
2691 Done,
2692 Error(anyhow::Error),
2693}
2694
2695#[derive(Default)]
2696struct Diff {
2697 deleted_row_ranges: Vec<(Anchor, RangeInclusive<u32>)>,
2698 inserted_row_ranges: Vec<Range<Anchor>>,
2699}
2700
2701impl Diff {
2702 fn is_empty(&self) -> bool {
2703 self.deleted_row_ranges.is_empty() && self.inserted_row_ranges.is_empty()
2704 }
2705}
2706
2707impl EventEmitter<CodegenEvent> for CodegenAlternative {}
2708
2709impl CodegenAlternative {
2710 pub fn new(
2711 multi_buffer: Entity<MultiBuffer>,
2712 range: Range<Anchor>,
2713 active: bool,
2714 telemetry: Option<Arc<Telemetry>>,
2715 builder: Arc<PromptBuilder>,
2716 cx: &mut Context<Self>,
2717 ) -> Self {
2718 let snapshot = multi_buffer.read(cx).snapshot(cx);
2719
2720 let (buffer, _, _) = snapshot
2721 .range_to_buffer_ranges(range.clone())
2722 .pop()
2723 .unwrap();
2724 let old_buffer = cx.new(|cx| {
2725 let text = buffer.as_rope().clone();
2726 let line_ending = buffer.line_ending();
2727 let language = buffer.language().cloned();
2728 let language_registry = multi_buffer
2729 .read(cx)
2730 .buffer(buffer.remote_id())
2731 .unwrap()
2732 .read(cx)
2733 .language_registry();
2734
2735 let mut buffer = Buffer::local_normalized(text, line_ending, cx);
2736 buffer.set_language(language, cx);
2737 if let Some(language_registry) = language_registry {
2738 buffer.set_language_registry(language_registry)
2739 }
2740 buffer
2741 });
2742
2743 Self {
2744 buffer: multi_buffer.clone(),
2745 old_buffer,
2746 edit_position: None,
2747 message_id: None,
2748 snapshot,
2749 last_equal_ranges: Default::default(),
2750 transformation_transaction_id: None,
2751 status: CodegenStatus::Idle,
2752 generation: Task::ready(()),
2753 diff: Diff::default(),
2754 telemetry,
2755 _subscription: cx.subscribe(&multi_buffer, Self::handle_buffer_event),
2756 builder,
2757 active,
2758 edits: Vec::new(),
2759 line_operations: Vec::new(),
2760 range,
2761 request: None,
2762 elapsed_time: None,
2763 completion: None,
2764 }
2765 }
2766
2767 fn set_active(&mut self, active: bool, cx: &mut Context<Self>) {
2768 if active != self.active {
2769 self.active = active;
2770
2771 if self.active {
2772 let edits = self.edits.clone();
2773 self.apply_edits(edits, cx);
2774 if matches!(self.status, CodegenStatus::Pending) {
2775 let line_operations = self.line_operations.clone();
2776 self.reapply_line_based_diff(line_operations, cx);
2777 } else {
2778 self.reapply_batch_diff(cx).detach();
2779 }
2780 } else if let Some(transaction_id) = self.transformation_transaction_id.take() {
2781 self.buffer.update(cx, |buffer, cx| {
2782 buffer.undo_transaction(transaction_id, cx);
2783 buffer.forget_transaction(transaction_id, cx);
2784 });
2785 }
2786 }
2787 }
2788
2789 fn handle_buffer_event(
2790 &mut self,
2791 _buffer: Entity<MultiBuffer>,
2792 event: &multi_buffer::Event,
2793 cx: &mut Context<Self>,
2794 ) {
2795 if let multi_buffer::Event::TransactionUndone { transaction_id } = event {
2796 if self.transformation_transaction_id == Some(*transaction_id) {
2797 self.transformation_transaction_id = None;
2798 self.generation = Task::ready(());
2799 cx.emit(CodegenEvent::Undone);
2800 }
2801 }
2802 }
2803
2804 pub fn last_equal_ranges(&self) -> &[Range<Anchor>] {
2805 &self.last_equal_ranges
2806 }
2807
2808 pub fn count_tokens(
2809 &self,
2810 user_prompt: String,
2811 assistant_panel_context: Option<LanguageModelRequest>,
2812 cx: &App,
2813 ) -> BoxFuture<'static, Result<TokenCounts>> {
2814 if let Some(model) = LanguageModelRegistry::read_global(cx).active_model() {
2815 let request = self.build_request(user_prompt, assistant_panel_context.clone(), cx);
2816 match request {
2817 Ok(request) => {
2818 let total_count = model.count_tokens(request.clone(), cx);
2819 let assistant_panel_count = assistant_panel_context
2820 .map(|context| model.count_tokens(context, cx))
2821 .unwrap_or_else(|| future::ready(Ok(0)).boxed());
2822
2823 async move {
2824 Ok(TokenCounts {
2825 total: total_count.await?,
2826 assistant_panel: assistant_panel_count.await?,
2827 })
2828 }
2829 .boxed()
2830 }
2831 Err(error) => futures::future::ready(Err(error)).boxed(),
2832 }
2833 } else {
2834 future::ready(Err(anyhow!("no active model"))).boxed()
2835 }
2836 }
2837
2838 pub fn start(
2839 &mut self,
2840 user_prompt: String,
2841 assistant_panel_context: Option<LanguageModelRequest>,
2842 model: Arc<dyn LanguageModel>,
2843 cx: &mut Context<Self>,
2844 ) -> Result<()> {
2845 if let Some(transformation_transaction_id) = self.transformation_transaction_id.take() {
2846 self.buffer.update(cx, |buffer, cx| {
2847 buffer.undo_transaction(transformation_transaction_id, cx);
2848 });
2849 }
2850
2851 self.edit_position = Some(self.range.start.bias_right(&self.snapshot));
2852
2853 let api_key = model.api_key(cx);
2854 let telemetry_id = model.telemetry_id();
2855 let provider_id = model.provider_id();
2856 let stream: LocalBoxFuture<Result<LanguageModelTextStream>> =
2857 if user_prompt.trim().to_lowercase() == "delete" {
2858 async { Ok(LanguageModelTextStream::default()) }.boxed_local()
2859 } else {
2860 let request = self.build_request(user_prompt, assistant_panel_context, cx)?;
2861 self.request = Some(request.clone());
2862
2863 cx.spawn(|_, cx| async move { model.stream_completion_text(request, &cx).await })
2864 .boxed_local()
2865 };
2866 self.handle_stream(telemetry_id, provider_id.to_string(), api_key, stream, cx);
2867 Ok(())
2868 }
2869
2870 fn build_request(
2871 &self,
2872 user_prompt: String,
2873 assistant_panel_context: Option<LanguageModelRequest>,
2874 cx: &App,
2875 ) -> Result<LanguageModelRequest> {
2876 let buffer = self.buffer.read(cx).snapshot(cx);
2877 let language = buffer.language_at(self.range.start);
2878 let language_name = if let Some(language) = language.as_ref() {
2879 if Arc::ptr_eq(language, &language::PLAIN_TEXT) {
2880 None
2881 } else {
2882 Some(language.name())
2883 }
2884 } else {
2885 None
2886 };
2887
2888 let language_name = language_name.as_ref();
2889 let start = buffer.point_to_buffer_offset(self.range.start);
2890 let end = buffer.point_to_buffer_offset(self.range.end);
2891 let (buffer, range) = if let Some((start, end)) = start.zip(end) {
2892 let (start_buffer, start_buffer_offset) = start;
2893 let (end_buffer, end_buffer_offset) = end;
2894 if start_buffer.remote_id() == end_buffer.remote_id() {
2895 (start_buffer.clone(), start_buffer_offset..end_buffer_offset)
2896 } else {
2897 return Err(anyhow::anyhow!("invalid transformation range"));
2898 }
2899 } else {
2900 return Err(anyhow::anyhow!("invalid transformation range"));
2901 };
2902
2903 let prompt = self
2904 .builder
2905 .generate_inline_transformation_prompt(user_prompt, language_name, buffer, range)
2906 .map_err(|e| anyhow::anyhow!("Failed to generate content prompt: {}", e))?;
2907
2908 let mut messages = Vec::new();
2909 if let Some(context_request) = assistant_panel_context {
2910 messages = context_request.messages;
2911 }
2912
2913 messages.push(LanguageModelRequestMessage {
2914 role: Role::User,
2915 content: vec![prompt.into()],
2916 cache: false,
2917 });
2918
2919 Ok(LanguageModelRequest {
2920 messages,
2921 tools: Vec::new(),
2922 stop: Vec::new(),
2923 temperature: None,
2924 })
2925 }
2926
2927 pub fn handle_stream(
2928 &mut self,
2929 model_telemetry_id: String,
2930 model_provider_id: String,
2931 model_api_key: Option<String>,
2932 stream: impl 'static + Future<Output = Result<LanguageModelTextStream>>,
2933 cx: &mut Context<Self>,
2934 ) {
2935 let start_time = Instant::now();
2936 let snapshot = self.snapshot.clone();
2937 let selected_text = snapshot
2938 .text_for_range(self.range.start..self.range.end)
2939 .collect::<Rope>();
2940
2941 let selection_start = self.range.start.to_point(&snapshot);
2942
2943 // Start with the indentation of the first line in the selection
2944 let mut suggested_line_indent = snapshot
2945 .suggested_indents(selection_start.row..=selection_start.row, cx)
2946 .into_values()
2947 .next()
2948 .unwrap_or_else(|| snapshot.indent_size_for_line(MultiBufferRow(selection_start.row)));
2949
2950 // If the first line in the selection does not have indentation, check the following lines
2951 if suggested_line_indent.len == 0 && suggested_line_indent.kind == IndentKind::Space {
2952 for row in selection_start.row..=self.range.end.to_point(&snapshot).row {
2953 let line_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
2954 // Prefer tabs if a line in the selection uses tabs as indentation
2955 if line_indent.kind == IndentKind::Tab {
2956 suggested_line_indent.kind = IndentKind::Tab;
2957 break;
2958 }
2959 }
2960 }
2961
2962 let http_client = cx.http_client().clone();
2963 let telemetry = self.telemetry.clone();
2964 let language_name = {
2965 let multibuffer = self.buffer.read(cx);
2966 let snapshot = multibuffer.snapshot(cx);
2967 let ranges = snapshot.range_to_buffer_ranges(self.range.clone());
2968 ranges
2969 .first()
2970 .and_then(|(buffer, _, _)| buffer.language())
2971 .map(|language| language.name())
2972 };
2973
2974 self.diff = Diff::default();
2975 self.status = CodegenStatus::Pending;
2976 let mut edit_start = self.range.start.to_offset(&snapshot);
2977 let completion = Arc::new(Mutex::new(String::new()));
2978 let completion_clone = completion.clone();
2979
2980 self.generation = cx.spawn(|codegen, mut cx| {
2981 async move {
2982 let stream = stream.await;
2983 let message_id = stream
2984 .as_ref()
2985 .ok()
2986 .and_then(|stream| stream.message_id.clone());
2987 let generate = async {
2988 let (mut diff_tx, mut diff_rx) = mpsc::channel(1);
2989 let executor = cx.background_executor().clone();
2990 let message_id = message_id.clone();
2991 let line_based_stream_diff: Task<anyhow::Result<()>> =
2992 cx.background_spawn(async move {
2993 let mut response_latency = None;
2994 let request_start = Instant::now();
2995 let diff = async {
2996 let chunks = StripInvalidSpans::new(stream?.stream);
2997 futures::pin_mut!(chunks);
2998 let mut diff = StreamingDiff::new(selected_text.to_string());
2999 let mut line_diff = LineDiff::default();
3000
3001 let mut new_text = String::new();
3002 let mut base_indent = None;
3003 let mut line_indent = None;
3004 let mut first_line = true;
3005
3006 while let Some(chunk) = chunks.next().await {
3007 if response_latency.is_none() {
3008 response_latency = Some(request_start.elapsed());
3009 }
3010 let chunk = chunk?;
3011 completion_clone.lock().push_str(&chunk);
3012
3013 let mut lines = chunk.split('\n').peekable();
3014 while let Some(line) = lines.next() {
3015 new_text.push_str(line);
3016 if line_indent.is_none() {
3017 if let Some(non_whitespace_ch_ix) =
3018 new_text.find(|ch: char| !ch.is_whitespace())
3019 {
3020 line_indent = Some(non_whitespace_ch_ix);
3021 base_indent = base_indent.or(line_indent);
3022
3023 let line_indent = line_indent.unwrap();
3024 let base_indent = base_indent.unwrap();
3025 let indent_delta =
3026 line_indent as i32 - base_indent as i32;
3027 let mut corrected_indent_len = cmp::max(
3028 0,
3029 suggested_line_indent.len as i32 + indent_delta,
3030 )
3031 as usize;
3032 if first_line {
3033 corrected_indent_len = corrected_indent_len
3034 .saturating_sub(
3035 selection_start.column as usize,
3036 );
3037 }
3038
3039 let indent_char = suggested_line_indent.char();
3040 let mut indent_buffer = [0; 4];
3041 let indent_str =
3042 indent_char.encode_utf8(&mut indent_buffer);
3043 new_text.replace_range(
3044 ..line_indent,
3045 &indent_str.repeat(corrected_indent_len),
3046 );
3047 }
3048 }
3049
3050 if line_indent.is_some() {
3051 let char_ops = diff.push_new(&new_text);
3052 line_diff
3053 .push_char_operations(&char_ops, &selected_text);
3054 diff_tx
3055 .send((char_ops, line_diff.line_operations()))
3056 .await?;
3057 new_text.clear();
3058 }
3059
3060 if lines.peek().is_some() {
3061 let char_ops = diff.push_new("\n");
3062 line_diff
3063 .push_char_operations(&char_ops, &selected_text);
3064 diff_tx
3065 .send((char_ops, line_diff.line_operations()))
3066 .await?;
3067 if line_indent.is_none() {
3068 // Don't write out the leading indentation in empty lines on the next line
3069 // This is the case where the above if statement didn't clear the buffer
3070 new_text.clear();
3071 }
3072 line_indent = None;
3073 first_line = false;
3074 }
3075 }
3076 }
3077
3078 let mut char_ops = diff.push_new(&new_text);
3079 char_ops.extend(diff.finish());
3080 line_diff.push_char_operations(&char_ops, &selected_text);
3081 line_diff.finish(&selected_text);
3082 diff_tx
3083 .send((char_ops, line_diff.line_operations()))
3084 .await?;
3085
3086 anyhow::Ok(())
3087 };
3088
3089 let result = diff.await;
3090
3091 let error_message =
3092 result.as_ref().err().map(|error| error.to_string());
3093 report_assistant_event(
3094 AssistantEvent {
3095 conversation_id: None,
3096 message_id,
3097 kind: AssistantKind::Inline,
3098 phase: AssistantPhase::Response,
3099 model: model_telemetry_id,
3100 model_provider: model_provider_id.to_string(),
3101 response_latency,
3102 error_message,
3103 language_name: language_name.map(|name| name.to_proto()),
3104 },
3105 telemetry,
3106 http_client,
3107 model_api_key,
3108 &executor,
3109 );
3110
3111 result?;
3112 Ok(())
3113 });
3114
3115 while let Some((char_ops, line_ops)) = diff_rx.next().await {
3116 codegen.update(&mut cx, |codegen, cx| {
3117 codegen.last_equal_ranges.clear();
3118
3119 let edits = char_ops
3120 .into_iter()
3121 .filter_map(|operation| match operation {
3122 CharOperation::Insert { text } => {
3123 let edit_start = snapshot.anchor_after(edit_start);
3124 Some((edit_start..edit_start, text))
3125 }
3126 CharOperation::Delete { bytes } => {
3127 let edit_end = edit_start + bytes;
3128 let edit_range = snapshot.anchor_after(edit_start)
3129 ..snapshot.anchor_before(edit_end);
3130 edit_start = edit_end;
3131 Some((edit_range, String::new()))
3132 }
3133 CharOperation::Keep { bytes } => {
3134 let edit_end = edit_start + bytes;
3135 let edit_range = snapshot.anchor_after(edit_start)
3136 ..snapshot.anchor_before(edit_end);
3137 edit_start = edit_end;
3138 codegen.last_equal_ranges.push(edit_range);
3139 None
3140 }
3141 })
3142 .collect::<Vec<_>>();
3143
3144 if codegen.active {
3145 codegen.apply_edits(edits.iter().cloned(), cx);
3146 codegen.reapply_line_based_diff(line_ops.iter().cloned(), cx);
3147 }
3148 codegen.edits.extend(edits);
3149 codegen.line_operations = line_ops;
3150 codegen.edit_position = Some(snapshot.anchor_after(edit_start));
3151
3152 cx.notify();
3153 })?;
3154 }
3155
3156 // Streaming stopped and we have the new text in the buffer, and a line-based diff applied for the whole new buffer.
3157 // That diff is not what a regular diff is and might look unexpected, ergo apply a regular diff.
3158 // It's fine to apply even if the rest of the line diffing fails, as no more hunks are coming through `diff_rx`.
3159 let batch_diff_task =
3160 codegen.update(&mut cx, |codegen, cx| codegen.reapply_batch_diff(cx))?;
3161 let (line_based_stream_diff, ()) =
3162 join!(line_based_stream_diff, batch_diff_task);
3163 line_based_stream_diff?;
3164
3165 anyhow::Ok(())
3166 };
3167
3168 let result = generate.await;
3169 let elapsed_time = start_time.elapsed().as_secs_f64();
3170
3171 codegen
3172 .update(&mut cx, |this, cx| {
3173 this.message_id = message_id;
3174 this.last_equal_ranges.clear();
3175 if let Err(error) = result {
3176 this.status = CodegenStatus::Error(error);
3177 } else {
3178 this.status = CodegenStatus::Done;
3179 }
3180 this.elapsed_time = Some(elapsed_time);
3181 this.completion = Some(completion.lock().clone());
3182 cx.emit(CodegenEvent::Finished);
3183 cx.notify();
3184 })
3185 .ok();
3186 }
3187 });
3188 cx.notify();
3189 }
3190
3191 pub fn stop(&mut self, cx: &mut Context<Self>) {
3192 self.last_equal_ranges.clear();
3193 if self.diff.is_empty() {
3194 self.status = CodegenStatus::Idle;
3195 } else {
3196 self.status = CodegenStatus::Done;
3197 }
3198 self.generation = Task::ready(());
3199 cx.emit(CodegenEvent::Finished);
3200 cx.notify();
3201 }
3202
3203 pub fn undo(&mut self, cx: &mut Context<Self>) {
3204 self.buffer.update(cx, |buffer, cx| {
3205 if let Some(transaction_id) = self.transformation_transaction_id.take() {
3206 buffer.undo_transaction(transaction_id, cx);
3207 buffer.refresh_preview(cx);
3208 }
3209 });
3210 }
3211
3212 fn apply_edits(
3213 &mut self,
3214 edits: impl IntoIterator<Item = (Range<Anchor>, String)>,
3215 cx: &mut Context<CodegenAlternative>,
3216 ) {
3217 let transaction = self.buffer.update(cx, |buffer, cx| {
3218 // Avoid grouping assistant edits with user edits.
3219 buffer.finalize_last_transaction(cx);
3220 buffer.start_transaction(cx);
3221 buffer.edit(edits, None, cx);
3222 buffer.end_transaction(cx)
3223 });
3224
3225 if let Some(transaction) = transaction {
3226 if let Some(first_transaction) = self.transformation_transaction_id {
3227 // Group all assistant edits into the first transaction.
3228 self.buffer.update(cx, |buffer, cx| {
3229 buffer.merge_transactions(transaction, first_transaction, cx)
3230 });
3231 } else {
3232 self.transformation_transaction_id = Some(transaction);
3233 self.buffer
3234 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
3235 }
3236 }
3237 }
3238
3239 fn reapply_line_based_diff(
3240 &mut self,
3241 line_operations: impl IntoIterator<Item = LineOperation>,
3242 cx: &mut Context<Self>,
3243 ) {
3244 let old_snapshot = self.snapshot.clone();
3245 let old_range = self.range.to_point(&old_snapshot);
3246 let new_snapshot = self.buffer.read(cx).snapshot(cx);
3247 let new_range = self.range.to_point(&new_snapshot);
3248
3249 let mut old_row = old_range.start.row;
3250 let mut new_row = new_range.start.row;
3251
3252 self.diff.deleted_row_ranges.clear();
3253 self.diff.inserted_row_ranges.clear();
3254 for operation in line_operations {
3255 match operation {
3256 LineOperation::Keep { lines } => {
3257 old_row += lines;
3258 new_row += lines;
3259 }
3260 LineOperation::Delete { lines } => {
3261 let old_end_row = old_row + lines - 1;
3262 let new_row = new_snapshot.anchor_before(Point::new(new_row, 0));
3263
3264 if let Some((_, last_deleted_row_range)) =
3265 self.diff.deleted_row_ranges.last_mut()
3266 {
3267 if *last_deleted_row_range.end() + 1 == old_row {
3268 *last_deleted_row_range = *last_deleted_row_range.start()..=old_end_row;
3269 } else {
3270 self.diff
3271 .deleted_row_ranges
3272 .push((new_row, old_row..=old_end_row));
3273 }
3274 } else {
3275 self.diff
3276 .deleted_row_ranges
3277 .push((new_row, old_row..=old_end_row));
3278 }
3279
3280 old_row += lines;
3281 }
3282 LineOperation::Insert { lines } => {
3283 let new_end_row = new_row + lines - 1;
3284 let start = new_snapshot.anchor_before(Point::new(new_row, 0));
3285 let end = new_snapshot.anchor_before(Point::new(
3286 new_end_row,
3287 new_snapshot.line_len(MultiBufferRow(new_end_row)),
3288 ));
3289 self.diff.inserted_row_ranges.push(start..end);
3290 new_row += lines;
3291 }
3292 }
3293
3294 cx.notify();
3295 }
3296 }
3297
3298 fn reapply_batch_diff(&mut self, cx: &mut Context<Self>) -> Task<()> {
3299 let old_snapshot = self.snapshot.clone();
3300 let old_range = self.range.to_point(&old_snapshot);
3301 let new_snapshot = self.buffer.read(cx).snapshot(cx);
3302 let new_range = self.range.to_point(&new_snapshot);
3303
3304 cx.spawn(|codegen, mut cx| async move {
3305 let (deleted_row_ranges, inserted_row_ranges) = cx
3306 .background_spawn(async move {
3307 let old_text = old_snapshot
3308 .text_for_range(
3309 Point::new(old_range.start.row, 0)
3310 ..Point::new(
3311 old_range.end.row,
3312 old_snapshot.line_len(MultiBufferRow(old_range.end.row)),
3313 ),
3314 )
3315 .collect::<String>();
3316 let new_text = new_snapshot
3317 .text_for_range(
3318 Point::new(new_range.start.row, 0)
3319 ..Point::new(
3320 new_range.end.row,
3321 new_snapshot.line_len(MultiBufferRow(new_range.end.row)),
3322 ),
3323 )
3324 .collect::<String>();
3325
3326 let old_start_row = old_range.start.row;
3327 let new_start_row = new_range.start.row;
3328 let mut deleted_row_ranges: Vec<(Anchor, RangeInclusive<u32>)> = Vec::new();
3329 let mut inserted_row_ranges = Vec::new();
3330 for (old_rows, new_rows) in line_diff(&old_text, &new_text) {
3331 let old_rows = old_start_row + old_rows.start..old_start_row + old_rows.end;
3332 let new_rows = new_start_row + new_rows.start..new_start_row + new_rows.end;
3333 if !old_rows.is_empty() {
3334 deleted_row_ranges.push((
3335 new_snapshot.anchor_before(Point::new(new_rows.start, 0)),
3336 old_rows.start..=old_rows.end - 1,
3337 ));
3338 }
3339 if !new_rows.is_empty() {
3340 let start = new_snapshot.anchor_before(Point::new(new_rows.start, 0));
3341 let new_end_row = new_rows.end - 1;
3342 let end = new_snapshot.anchor_before(Point::new(
3343 new_end_row,
3344 new_snapshot.line_len(MultiBufferRow(new_end_row)),
3345 ));
3346 inserted_row_ranges.push(start..end);
3347 }
3348 }
3349 (deleted_row_ranges, inserted_row_ranges)
3350 })
3351 .await;
3352
3353 codegen
3354 .update(&mut cx, |codegen, cx| {
3355 codegen.diff.deleted_row_ranges = deleted_row_ranges;
3356 codegen.diff.inserted_row_ranges = inserted_row_ranges;
3357 cx.notify();
3358 })
3359 .ok();
3360 })
3361 }
3362}
3363
3364struct StripInvalidSpans<T> {
3365 stream: T,
3366 stream_done: bool,
3367 buffer: String,
3368 first_line: bool,
3369 line_end: bool,
3370 starts_with_code_block: bool,
3371}
3372
3373impl<T> StripInvalidSpans<T>
3374where
3375 T: Stream<Item = Result<String>>,
3376{
3377 fn new(stream: T) -> Self {
3378 Self {
3379 stream,
3380 stream_done: false,
3381 buffer: String::new(),
3382 first_line: true,
3383 line_end: false,
3384 starts_with_code_block: false,
3385 }
3386 }
3387}
3388
3389impl<T> Stream for StripInvalidSpans<T>
3390where
3391 T: Stream<Item = Result<String>>,
3392{
3393 type Item = Result<String>;
3394
3395 fn poll_next(self: Pin<&mut Self>, cx: &mut task::Context) -> Poll<Option<Self::Item>> {
3396 const CODE_BLOCK_DELIMITER: &str = "```";
3397 const CURSOR_SPAN: &str = "<|CURSOR|>";
3398
3399 let this = unsafe { self.get_unchecked_mut() };
3400 loop {
3401 if !this.stream_done {
3402 let mut stream = unsafe { Pin::new_unchecked(&mut this.stream) };
3403 match stream.as_mut().poll_next(cx) {
3404 Poll::Ready(Some(Ok(chunk))) => {
3405 this.buffer.push_str(&chunk);
3406 }
3407 Poll::Ready(Some(Err(error))) => return Poll::Ready(Some(Err(error))),
3408 Poll::Ready(None) => {
3409 this.stream_done = true;
3410 }
3411 Poll::Pending => return Poll::Pending,
3412 }
3413 }
3414
3415 let mut chunk = String::new();
3416 let mut consumed = 0;
3417 if !this.buffer.is_empty() {
3418 let mut lines = this.buffer.split('\n').enumerate().peekable();
3419 while let Some((line_ix, line)) = lines.next() {
3420 if line_ix > 0 {
3421 this.first_line = false;
3422 }
3423
3424 if this.first_line {
3425 let trimmed_line = line.trim();
3426 if lines.peek().is_some() {
3427 if trimmed_line.starts_with(CODE_BLOCK_DELIMITER) {
3428 consumed += line.len() + 1;
3429 this.starts_with_code_block = true;
3430 continue;
3431 }
3432 } else if trimmed_line.is_empty()
3433 || prefixes(CODE_BLOCK_DELIMITER)
3434 .any(|prefix| trimmed_line.starts_with(prefix))
3435 {
3436 break;
3437 }
3438 }
3439
3440 let line_without_cursor = line.replace(CURSOR_SPAN, "");
3441 if lines.peek().is_some() {
3442 if this.line_end {
3443 chunk.push('\n');
3444 }
3445
3446 chunk.push_str(&line_without_cursor);
3447 this.line_end = true;
3448 consumed += line.len() + 1;
3449 } else if this.stream_done {
3450 if !this.starts_with_code_block
3451 || !line_without_cursor.trim().ends_with(CODE_BLOCK_DELIMITER)
3452 {
3453 if this.line_end {
3454 chunk.push('\n');
3455 }
3456
3457 chunk.push_str(&line);
3458 }
3459
3460 consumed += line.len();
3461 } else {
3462 let trimmed_line = line.trim();
3463 if trimmed_line.is_empty()
3464 || prefixes(CURSOR_SPAN).any(|prefix| trimmed_line.ends_with(prefix))
3465 || prefixes(CODE_BLOCK_DELIMITER)
3466 .any(|prefix| trimmed_line.ends_with(prefix))
3467 {
3468 break;
3469 } else {
3470 if this.line_end {
3471 chunk.push('\n');
3472 this.line_end = false;
3473 }
3474
3475 chunk.push_str(&line_without_cursor);
3476 consumed += line.len();
3477 }
3478 }
3479 }
3480 }
3481
3482 this.buffer = this.buffer.split_off(consumed);
3483 if !chunk.is_empty() {
3484 return Poll::Ready(Some(Ok(chunk)));
3485 } else if this.stream_done {
3486 return Poll::Ready(None);
3487 }
3488 }
3489 }
3490}
3491
3492struct AssistantCodeActionProvider {
3493 editor: WeakEntity<Editor>,
3494 workspace: WeakEntity<Workspace>,
3495}
3496
3497const ASSISTANT_CODE_ACTION_PROVIDER_ID: &str = "assistant";
3498
3499impl CodeActionProvider for AssistantCodeActionProvider {
3500 fn id(&self) -> Arc<str> {
3501 ASSISTANT_CODE_ACTION_PROVIDER_ID.into()
3502 }
3503
3504 fn code_actions(
3505 &self,
3506 buffer: &Entity<Buffer>,
3507 range: Range<text::Anchor>,
3508 _: &mut Window,
3509 cx: &mut App,
3510 ) -> Task<Result<Vec<CodeAction>>> {
3511 if !AssistantSettings::get_global(cx).enabled {
3512 return Task::ready(Ok(Vec::new()));
3513 }
3514
3515 let snapshot = buffer.read(cx).snapshot();
3516 let mut range = range.to_point(&snapshot);
3517
3518 // Expand the range to line boundaries.
3519 range.start.column = 0;
3520 range.end.column = snapshot.line_len(range.end.row);
3521
3522 let mut has_diagnostics = false;
3523 for diagnostic in snapshot.diagnostics_in_range::<_, Point>(range.clone(), false) {
3524 range.start = cmp::min(range.start, diagnostic.range.start);
3525 range.end = cmp::max(range.end, diagnostic.range.end);
3526 has_diagnostics = true;
3527 }
3528 if has_diagnostics {
3529 if let Some(symbols_containing_start) = snapshot.symbols_containing(range.start, None) {
3530 if let Some(symbol) = symbols_containing_start.last() {
3531 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
3532 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
3533 }
3534 }
3535
3536 if let Some(symbols_containing_end) = snapshot.symbols_containing(range.end, None) {
3537 if let Some(symbol) = symbols_containing_end.last() {
3538 range.start = cmp::min(range.start, symbol.range.start.to_point(&snapshot));
3539 range.end = cmp::max(range.end, symbol.range.end.to_point(&snapshot));
3540 }
3541 }
3542
3543 Task::ready(Ok(vec![CodeAction {
3544 server_id: language::LanguageServerId(0),
3545 range: snapshot.anchor_before(range.start)..snapshot.anchor_after(range.end),
3546 lsp_action: lsp::CodeAction {
3547 title: "Fix with Assistant".into(),
3548 ..Default::default()
3549 },
3550 }]))
3551 } else {
3552 Task::ready(Ok(Vec::new()))
3553 }
3554 }
3555
3556 fn apply_code_action(
3557 &self,
3558 buffer: Entity<Buffer>,
3559 action: CodeAction,
3560 excerpt_id: ExcerptId,
3561 _push_to_history: bool,
3562 window: &mut Window,
3563 cx: &mut App,
3564 ) -> Task<Result<ProjectTransaction>> {
3565 let editor = self.editor.clone();
3566 let workspace = self.workspace.clone();
3567 window.spawn(cx, |mut cx| async move {
3568 let editor = editor.upgrade().context("editor was released")?;
3569 let range = editor
3570 .update(&mut cx, |editor, cx| {
3571 editor.buffer().update(cx, |multibuffer, cx| {
3572 let buffer = buffer.read(cx);
3573 let multibuffer_snapshot = multibuffer.read(cx);
3574
3575 let old_context_range =
3576 multibuffer_snapshot.context_range_for_excerpt(excerpt_id)?;
3577 let mut new_context_range = old_context_range.clone();
3578 if action
3579 .range
3580 .start
3581 .cmp(&old_context_range.start, buffer)
3582 .is_lt()
3583 {
3584 new_context_range.start = action.range.start;
3585 }
3586 if action.range.end.cmp(&old_context_range.end, buffer).is_gt() {
3587 new_context_range.end = action.range.end;
3588 }
3589 drop(multibuffer_snapshot);
3590
3591 if new_context_range != old_context_range {
3592 multibuffer.resize_excerpt(excerpt_id, new_context_range, cx);
3593 }
3594
3595 let multibuffer_snapshot = multibuffer.read(cx);
3596 Some(
3597 multibuffer_snapshot
3598 .anchor_in_excerpt(excerpt_id, action.range.start)?
3599 ..multibuffer_snapshot
3600 .anchor_in_excerpt(excerpt_id, action.range.end)?,
3601 )
3602 })
3603 })?
3604 .context("invalid range")?;
3605 let assistant_panel = workspace.update(&mut cx, |workspace, cx| {
3606 workspace
3607 .panel::<AssistantPanel>(cx)
3608 .context("assistant panel was released")
3609 })??;
3610
3611 cx.update_global(|assistant: &mut InlineAssistant, window, cx| {
3612 let assist_id = assistant.suggest_assist(
3613 &editor,
3614 range,
3615 "Fix Diagnostics".into(),
3616 None,
3617 true,
3618 Some(workspace),
3619 Some(&assistant_panel),
3620 window,
3621 cx,
3622 );
3623 assistant.start_assist(assist_id, window, cx);
3624 })?;
3625
3626 Ok(ProjectTransaction::default())
3627 })
3628 }
3629}
3630
3631fn prefixes(text: &str) -> impl Iterator<Item = &str> {
3632 (0..text.len() - 1).map(|ix| &text[..ix + 1])
3633}
3634
3635fn merge_ranges(ranges: &mut Vec<Range<Anchor>>, buffer: &MultiBufferSnapshot) {
3636 ranges.sort_unstable_by(|a, b| {
3637 a.start
3638 .cmp(&b.start, buffer)
3639 .then_with(|| b.end.cmp(&a.end, buffer))
3640 });
3641
3642 let mut ix = 0;
3643 while ix + 1 < ranges.len() {
3644 let b = ranges[ix + 1].clone();
3645 let a = &mut ranges[ix];
3646 if a.end.cmp(&b.start, buffer).is_gt() {
3647 if a.end.cmp(&b.end, buffer).is_lt() {
3648 a.end = b.end;
3649 }
3650 ranges.remove(ix + 1);
3651 } else {
3652 ix += 1;
3653 }
3654 }
3655}
3656
3657#[cfg(test)]
3658mod tests {
3659 use super::*;
3660 use futures::stream::{self};
3661 use gpui::TestAppContext;
3662 use indoc::indoc;
3663 use language::{
3664 language_settings, tree_sitter_rust, Buffer, Language, LanguageConfig, LanguageMatcher,
3665 Point,
3666 };
3667 use language_model::LanguageModelRegistry;
3668 use rand::prelude::*;
3669 use serde::Serialize;
3670 use settings::SettingsStore;
3671 use std::{future, sync::Arc};
3672
3673 #[derive(Serialize)]
3674 pub struct DummyCompletionRequest {
3675 pub name: String,
3676 }
3677
3678 #[gpui::test(iterations = 10)]
3679 async fn test_transform_autoindent(cx: &mut TestAppContext, mut rng: StdRng) {
3680 cx.set_global(cx.update(SettingsStore::test));
3681 cx.update(language_model::LanguageModelRegistry::test);
3682 cx.update(language_settings::init);
3683
3684 let text = indoc! {"
3685 fn main() {
3686 let x = 0;
3687 for _ in 0..10 {
3688 x += 1;
3689 }
3690 }
3691 "};
3692 let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3693 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
3694 let range = buffer.read_with(cx, |buffer, cx| {
3695 let snapshot = buffer.snapshot(cx);
3696 snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(4, 5))
3697 });
3698 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3699 let codegen = cx.new(|cx| {
3700 CodegenAlternative::new(
3701 buffer.clone(),
3702 range.clone(),
3703 true,
3704 None,
3705 prompt_builder,
3706 cx,
3707 )
3708 });
3709
3710 let chunks_tx = simulate_response_stream(codegen.clone(), cx);
3711
3712 let mut new_text = concat!(
3713 " let mut x = 0;\n",
3714 " while x < 10 {\n",
3715 " x += 1;\n",
3716 " }",
3717 );
3718 while !new_text.is_empty() {
3719 let max_len = cmp::min(new_text.len(), 10);
3720 let len = rng.gen_range(1..=max_len);
3721 let (chunk, suffix) = new_text.split_at(len);
3722 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3723 new_text = suffix;
3724 cx.background_executor.run_until_parked();
3725 }
3726 drop(chunks_tx);
3727 cx.background_executor.run_until_parked();
3728
3729 assert_eq!(
3730 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3731 indoc! {"
3732 fn main() {
3733 let mut x = 0;
3734 while x < 10 {
3735 x += 1;
3736 }
3737 }
3738 "}
3739 );
3740 }
3741
3742 #[gpui::test(iterations = 10)]
3743 async fn test_autoindent_when_generating_past_indentation(
3744 cx: &mut TestAppContext,
3745 mut rng: StdRng,
3746 ) {
3747 cx.set_global(cx.update(SettingsStore::test));
3748 cx.update(language_settings::init);
3749
3750 let text = indoc! {"
3751 fn main() {
3752 le
3753 }
3754 "};
3755 let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3756 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
3757 let range = buffer.read_with(cx, |buffer, cx| {
3758 let snapshot = buffer.snapshot(cx);
3759 snapshot.anchor_before(Point::new(1, 6))..snapshot.anchor_after(Point::new(1, 6))
3760 });
3761 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3762 let codegen = cx.new(|cx| {
3763 CodegenAlternative::new(
3764 buffer.clone(),
3765 range.clone(),
3766 true,
3767 None,
3768 prompt_builder,
3769 cx,
3770 )
3771 });
3772
3773 let chunks_tx = simulate_response_stream(codegen.clone(), cx);
3774
3775 cx.background_executor.run_until_parked();
3776
3777 let mut new_text = concat!(
3778 "t mut x = 0;\n",
3779 "while x < 10 {\n",
3780 " x += 1;\n",
3781 "}", //
3782 );
3783 while !new_text.is_empty() {
3784 let max_len = cmp::min(new_text.len(), 10);
3785 let len = rng.gen_range(1..=max_len);
3786 let (chunk, suffix) = new_text.split_at(len);
3787 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3788 new_text = suffix;
3789 cx.background_executor.run_until_parked();
3790 }
3791 drop(chunks_tx);
3792 cx.background_executor.run_until_parked();
3793
3794 assert_eq!(
3795 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3796 indoc! {"
3797 fn main() {
3798 let mut x = 0;
3799 while x < 10 {
3800 x += 1;
3801 }
3802 }
3803 "}
3804 );
3805 }
3806
3807 #[gpui::test(iterations = 10)]
3808 async fn test_autoindent_when_generating_before_indentation(
3809 cx: &mut TestAppContext,
3810 mut rng: StdRng,
3811 ) {
3812 cx.update(LanguageModelRegistry::test);
3813 cx.set_global(cx.update(SettingsStore::test));
3814 cx.update(language_settings::init);
3815
3816 let text = concat!(
3817 "fn main() {\n",
3818 " \n",
3819 "}\n" //
3820 );
3821 let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3822 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
3823 let range = buffer.read_with(cx, |buffer, cx| {
3824 let snapshot = buffer.snapshot(cx);
3825 snapshot.anchor_before(Point::new(1, 2))..snapshot.anchor_after(Point::new(1, 2))
3826 });
3827 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3828 let codegen = cx.new(|cx| {
3829 CodegenAlternative::new(
3830 buffer.clone(),
3831 range.clone(),
3832 true,
3833 None,
3834 prompt_builder,
3835 cx,
3836 )
3837 });
3838
3839 let chunks_tx = simulate_response_stream(codegen.clone(), cx);
3840
3841 cx.background_executor.run_until_parked();
3842
3843 let mut new_text = concat!(
3844 "let mut x = 0;\n",
3845 "while x < 10 {\n",
3846 " x += 1;\n",
3847 "}", //
3848 );
3849 while !new_text.is_empty() {
3850 let max_len = cmp::min(new_text.len(), 10);
3851 let len = rng.gen_range(1..=max_len);
3852 let (chunk, suffix) = new_text.split_at(len);
3853 chunks_tx.unbounded_send(chunk.to_string()).unwrap();
3854 new_text = suffix;
3855 cx.background_executor.run_until_parked();
3856 }
3857 drop(chunks_tx);
3858 cx.background_executor.run_until_parked();
3859
3860 assert_eq!(
3861 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3862 indoc! {"
3863 fn main() {
3864 let mut x = 0;
3865 while x < 10 {
3866 x += 1;
3867 }
3868 }
3869 "}
3870 );
3871 }
3872
3873 #[gpui::test(iterations = 10)]
3874 async fn test_autoindent_respects_tabs_in_selection(cx: &mut TestAppContext) {
3875 cx.update(LanguageModelRegistry::test);
3876 cx.set_global(cx.update(SettingsStore::test));
3877 cx.update(language_settings::init);
3878
3879 let text = indoc! {"
3880 func main() {
3881 \tx := 0
3882 \tfor i := 0; i < 10; i++ {
3883 \t\tx++
3884 \t}
3885 }
3886 "};
3887 let buffer = cx.new(|cx| Buffer::local(text, cx));
3888 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
3889 let range = buffer.read_with(cx, |buffer, cx| {
3890 let snapshot = buffer.snapshot(cx);
3891 snapshot.anchor_before(Point::new(0, 0))..snapshot.anchor_after(Point::new(4, 2))
3892 });
3893 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3894 let codegen = cx.new(|cx| {
3895 CodegenAlternative::new(
3896 buffer.clone(),
3897 range.clone(),
3898 true,
3899 None,
3900 prompt_builder,
3901 cx,
3902 )
3903 });
3904
3905 let chunks_tx = simulate_response_stream(codegen.clone(), cx);
3906 let new_text = concat!(
3907 "func main() {\n",
3908 "\tx := 0\n",
3909 "\tfor x < 10 {\n",
3910 "\t\tx++\n",
3911 "\t}", //
3912 );
3913 chunks_tx.unbounded_send(new_text.to_string()).unwrap();
3914 drop(chunks_tx);
3915 cx.background_executor.run_until_parked();
3916
3917 assert_eq!(
3918 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3919 indoc! {"
3920 func main() {
3921 \tx := 0
3922 \tfor x < 10 {
3923 \t\tx++
3924 \t}
3925 }
3926 "}
3927 );
3928 }
3929
3930 #[gpui::test]
3931 async fn test_inactive_codegen_alternative(cx: &mut TestAppContext) {
3932 cx.update(LanguageModelRegistry::test);
3933 cx.set_global(cx.update(SettingsStore::test));
3934 cx.update(language_settings::init);
3935
3936 let text = indoc! {"
3937 fn main() {
3938 let x = 0;
3939 }
3940 "};
3941 let buffer = cx.new(|cx| Buffer::local(text, cx).with_language(Arc::new(rust_lang()), cx));
3942 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
3943 let range = buffer.read_with(cx, |buffer, cx| {
3944 let snapshot = buffer.snapshot(cx);
3945 snapshot.anchor_before(Point::new(1, 0))..snapshot.anchor_after(Point::new(1, 14))
3946 });
3947 let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3948 let codegen = cx.new(|cx| {
3949 CodegenAlternative::new(
3950 buffer.clone(),
3951 range.clone(),
3952 false,
3953 None,
3954 prompt_builder,
3955 cx,
3956 )
3957 });
3958
3959 let chunks_tx = simulate_response_stream(codegen.clone(), cx);
3960 chunks_tx
3961 .unbounded_send("let mut x = 0;\nx += 1;".to_string())
3962 .unwrap();
3963 drop(chunks_tx);
3964 cx.run_until_parked();
3965
3966 // The codegen is inactive, so the buffer doesn't get modified.
3967 assert_eq!(
3968 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3969 text
3970 );
3971
3972 // Activating the codegen applies the changes.
3973 codegen.update(cx, |codegen, cx| codegen.set_active(true, cx));
3974 assert_eq!(
3975 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3976 indoc! {"
3977 fn main() {
3978 let mut x = 0;
3979 x += 1;
3980 }
3981 "}
3982 );
3983
3984 // Deactivating the codegen undoes the changes.
3985 codegen.update(cx, |codegen, cx| codegen.set_active(false, cx));
3986 cx.run_until_parked();
3987 assert_eq!(
3988 buffer.read_with(cx, |buffer, cx| buffer.snapshot(cx).text()),
3989 text
3990 );
3991 }
3992
3993 #[gpui::test]
3994 async fn test_strip_invalid_spans_from_codeblock() {
3995 assert_chunks("Lorem ipsum dolor", "Lorem ipsum dolor").await;
3996 assert_chunks("```\nLorem ipsum dolor", "Lorem ipsum dolor").await;
3997 assert_chunks("```\nLorem ipsum dolor\n```", "Lorem ipsum dolor").await;
3998 assert_chunks(
3999 "```html\n```js\nLorem ipsum dolor\n```\n```",
4000 "```js\nLorem ipsum dolor\n```",
4001 )
4002 .await;
4003 assert_chunks("``\nLorem ipsum dolor\n```", "``\nLorem ipsum dolor\n```").await;
4004 assert_chunks("Lorem<|CURSOR|> ipsum", "Lorem ipsum").await;
4005 assert_chunks("Lorem ipsum", "Lorem ipsum").await;
4006 assert_chunks("```\n<|CURSOR|>Lorem ipsum\n```", "Lorem ipsum").await;
4007
4008 async fn assert_chunks(text: &str, expected_text: &str) {
4009 for chunk_size in 1..=text.len() {
4010 let actual_text = StripInvalidSpans::new(chunks(text, chunk_size))
4011 .map(|chunk| chunk.unwrap())
4012 .collect::<String>()
4013 .await;
4014 assert_eq!(
4015 actual_text, expected_text,
4016 "failed to strip invalid spans, chunk size: {}",
4017 chunk_size
4018 );
4019 }
4020 }
4021
4022 fn chunks(text: &str, size: usize) -> impl Stream<Item = Result<String>> {
4023 stream::iter(
4024 text.chars()
4025 .collect::<Vec<_>>()
4026 .chunks(size)
4027 .map(|chunk| Ok(chunk.iter().collect::<String>()))
4028 .collect::<Vec<_>>(),
4029 )
4030 }
4031 }
4032
4033 fn simulate_response_stream(
4034 codegen: Entity<CodegenAlternative>,
4035 cx: &mut TestAppContext,
4036 ) -> mpsc::UnboundedSender<String> {
4037 let (chunks_tx, chunks_rx) = mpsc::unbounded();
4038 codegen.update(cx, |codegen, cx| {
4039 codegen.handle_stream(
4040 String::new(),
4041 String::new(),
4042 None,
4043 future::ready(Ok(LanguageModelTextStream {
4044 message_id: None,
4045 stream: chunks_rx.map(Ok).boxed(),
4046 })),
4047 cx,
4048 );
4049 });
4050 chunks_tx
4051 }
4052
4053 fn rust_lang() -> Language {
4054 Language::new(
4055 LanguageConfig {
4056 name: "Rust".into(),
4057 matcher: LanguageMatcher {
4058 path_suffixes: vec!["rs".to_string()],
4059 ..Default::default()
4060 },
4061 ..Default::default()
4062 },
4063 Some(tree_sitter_rust::LANGUAGE.into()),
4064 )
4065 .with_indents_query(
4066 r#"
4067 (call_expression) @indent
4068 (field_expression) @indent
4069 (_ "(" ")" @end) @indent
4070 (_ "{" "}" @end) @indent
4071 "#,
4072 )
4073 .unwrap()
4074 }
4075}