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