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