1use std::collections::BTreeMap;
2use std::sync::Arc;
3
4use crate::assistant_model_selector::{AssistantModelSelector, ModelType};
5use crate::context::{ContextLoadResult, load_context};
6use crate::tool_compatibility::{IncompatibleToolsState, IncompatibleToolsTooltip};
7use crate::ui::AnimatedLabel;
8use buffer_diff::BufferDiff;
9use collections::HashSet;
10use editor::actions::{MoveUp, Paste};
11use editor::{
12 ContextMenuOptions, ContextMenuPlacement, Editor, EditorElement, EditorEvent, EditorMode,
13 EditorStyle, MultiBuffer,
14};
15use feature_flags::{FeatureFlagAppExt, NewBillingFeatureFlag};
16use file_icons::FileIcons;
17use fs::Fs;
18use futures::future::Shared;
19use futures::{FutureExt as _, future};
20use gpui::{
21 Animation, AnimationExt, App, ClipboardEntry, Entity, EventEmitter, Focusable, Subscription,
22 Task, TextStyle, WeakEntity, linear_color_stop, linear_gradient, point, pulsating_between,
23};
24use language::{Buffer, Language};
25use language_model::{ConfiguredModel, LanguageModelRequestMessage, MessageContent};
26use language_model_selector::ToggleModelSelector;
27use multi_buffer;
28use project::Project;
29use prompt_store::PromptStore;
30use settings::Settings;
31use std::time::Duration;
32use theme::ThemeSettings;
33use ui::{Disclosure, KeyBinding, PopoverMenuHandle, Tooltip, prelude::*};
34use util::ResultExt as _;
35use workspace::Workspace;
36use zed_llm_client::CompletionMode;
37
38use crate::context_picker::{ContextPicker, ContextPickerCompletionProvider};
39use crate::context_store::ContextStore;
40use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
41use crate::profile_selector::ProfileSelector;
42use crate::thread::{Thread, TokenUsageRatio};
43use crate::thread_store::ThreadStore;
44use crate::{
45 AgentDiff, Chat, ChatMode, ExpandMessageEditor, NewThread, OpenAgentDiff, RemoveAllContext,
46 ToggleContextPicker, ToggleProfileSelector,
47};
48
49pub struct MessageEditor {
50 thread: Entity<Thread>,
51 incompatible_tools_state: Entity<IncompatibleToolsState>,
52 editor: Entity<Editor>,
53 workspace: WeakEntity<Workspace>,
54 project: Entity<Project>,
55 context_store: Entity<ContextStore>,
56 prompt_store: Option<Entity<PromptStore>>,
57 context_strip: Entity<ContextStrip>,
58 context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
59 model_selector: Entity<AssistantModelSelector>,
60 last_loaded_context: Option<ContextLoadResult>,
61 load_context_task: Option<Shared<Task<()>>>,
62 profile_selector: Entity<ProfileSelector>,
63 edits_expanded: bool,
64 editor_is_expanded: bool,
65 last_estimated_token_count: Option<usize>,
66 update_token_count_task: Option<Task<anyhow::Result<()>>>,
67 _subscriptions: Vec<Subscription>,
68}
69
70const MAX_EDITOR_LINES: usize = 8;
71
72impl MessageEditor {
73 pub fn new(
74 fs: Arc<dyn Fs>,
75 workspace: WeakEntity<Workspace>,
76 context_store: Entity<ContextStore>,
77 prompt_store: Option<Entity<PromptStore>>,
78 thread_store: WeakEntity<ThreadStore>,
79 thread: Entity<Thread>,
80 window: &mut Window,
81 cx: &mut Context<Self>,
82 ) -> Self {
83 let context_picker_menu_handle = PopoverMenuHandle::default();
84 let model_selector_menu_handle = PopoverMenuHandle::default();
85
86 let language = Language::new(
87 language::LanguageConfig {
88 completion_query_characters: HashSet::from_iter(['.', '-', '_', '@']),
89 ..Default::default()
90 },
91 None,
92 );
93
94 let editor = cx.new(|cx| {
95 let buffer = cx.new(|cx| Buffer::local("", cx).with_language(Arc::new(language), cx));
96 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
97 let mut editor = Editor::new(
98 editor::EditorMode::AutoHeight {
99 max_lines: MAX_EDITOR_LINES,
100 },
101 buffer,
102 None,
103 window,
104 cx,
105 );
106 editor.set_placeholder_text("Ask anything, @ to mention, ↑ to select", cx);
107 editor.set_show_indent_guides(false, cx);
108 editor.set_soft_wrap();
109 editor.set_context_menu_options(ContextMenuOptions {
110 min_entries_visible: 12,
111 max_entries_visible: 12,
112 placement: Some(ContextMenuPlacement::Above),
113 });
114 editor
115 });
116
117 let editor_entity = editor.downgrade();
118 editor.update(cx, |editor, _| {
119 editor.set_completion_provider(Some(Box::new(ContextPickerCompletionProvider::new(
120 workspace.clone(),
121 context_store.downgrade(),
122 Some(thread_store.clone()),
123 editor_entity,
124 ))));
125 });
126
127 let context_strip = cx.new(|cx| {
128 ContextStrip::new(
129 context_store.clone(),
130 workspace.clone(),
131 Some(thread_store.clone()),
132 context_picker_menu_handle.clone(),
133 SuggestContextKind::File,
134 window,
135 cx,
136 )
137 });
138
139 let incompatible_tools =
140 cx.new(|cx| IncompatibleToolsState::new(thread.read(cx).tools().clone(), cx));
141
142 let subscriptions = vec![
143 cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event),
144 cx.subscribe(&editor, |this, _, event, cx| match event {
145 EditorEvent::BufferEdited => this.handle_message_changed(cx),
146 _ => {}
147 }),
148 cx.observe(&context_store, |this, _, cx| {
149 // When context changes, reload it for token counting.
150 let _ = this.reload_context(cx);
151 }),
152 ];
153
154 let model_selector = cx.new(|cx| {
155 AssistantModelSelector::new(
156 fs.clone(),
157 model_selector_menu_handle,
158 editor.focus_handle(cx),
159 ModelType::Default(thread.clone()),
160 window,
161 cx,
162 )
163 });
164
165 Self {
166 editor: editor.clone(),
167 project: thread.read(cx).project().clone(),
168 thread,
169 incompatible_tools_state: incompatible_tools.clone(),
170 workspace,
171 context_store,
172 prompt_store,
173 context_strip,
174 context_picker_menu_handle,
175 load_context_task: None,
176 last_loaded_context: None,
177 model_selector,
178 edits_expanded: false,
179 editor_is_expanded: false,
180 profile_selector: cx
181 .new(|cx| ProfileSelector::new(fs, thread_store, editor.focus_handle(cx), cx)),
182 last_estimated_token_count: None,
183 update_token_count_task: None,
184 _subscriptions: subscriptions,
185 }
186 }
187
188 pub fn context_store(&self) -> &Entity<ContextStore> {
189 &self.context_store
190 }
191
192 fn toggle_chat_mode(&mut self, _: &ChatMode, _window: &mut Window, cx: &mut Context<Self>) {
193 cx.notify();
194 }
195
196 pub fn expand_message_editor(
197 &mut self,
198 _: &ExpandMessageEditor,
199 _window: &mut Window,
200 cx: &mut Context<Self>,
201 ) {
202 self.set_editor_is_expanded(!self.editor_is_expanded, cx);
203 }
204
205 fn set_editor_is_expanded(&mut self, is_expanded: bool, cx: &mut Context<Self>) {
206 self.editor_is_expanded = is_expanded;
207 self.editor.update(cx, |editor, _| {
208 if self.editor_is_expanded {
209 editor.set_mode(EditorMode::Full {
210 scale_ui_elements_with_buffer_font_size: false,
211 show_active_line_background: false,
212 sized_by_content: false,
213 })
214 } else {
215 editor.set_mode(EditorMode::AutoHeight {
216 max_lines: MAX_EDITOR_LINES,
217 })
218 }
219 });
220 cx.notify();
221 }
222
223 fn toggle_context_picker(
224 &mut self,
225 _: &ToggleContextPicker,
226 window: &mut Window,
227 cx: &mut Context<Self>,
228 ) {
229 self.context_picker_menu_handle.toggle(window, cx);
230 }
231
232 pub fn remove_all_context(
233 &mut self,
234 _: &RemoveAllContext,
235 _window: &mut Window,
236 cx: &mut Context<Self>,
237 ) {
238 self.context_store.update(cx, |store, _cx| store.clear());
239 cx.notify();
240 }
241
242 fn chat(&mut self, _: &Chat, window: &mut Window, cx: &mut Context<Self>) {
243 if self.is_editor_empty(cx) {
244 return;
245 }
246
247 self.thread.update(cx, |thread, cx| {
248 thread.cancel_editing(cx);
249 });
250
251 if self.thread.read(cx).is_generating() {
252 self.stop_current_and_send_new_message(window, cx);
253 return;
254 }
255
256 self.set_editor_is_expanded(false, cx);
257 self.send_to_model(window, cx);
258
259 cx.notify();
260 }
261
262 fn is_editor_empty(&self, cx: &App) -> bool {
263 self.editor.read(cx).text(cx).trim().is_empty()
264 }
265
266 fn send_to_model(&mut self, window: &mut Window, cx: &mut Context<Self>) {
267 let Some(ConfiguredModel { model, provider }) = self
268 .thread
269 .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
270 else {
271 return;
272 };
273
274 if provider.must_accept_terms(cx) {
275 cx.notify();
276 return;
277 }
278
279 let user_message = self.editor.update(cx, |editor, cx| {
280 let text = editor.text(cx);
281 editor.clear(window, cx);
282 text
283 });
284
285 self.last_estimated_token_count.take();
286 cx.emit(MessageEditorEvent::EstimatedTokenCount);
287
288 let thread = self.thread.clone();
289 let git_store = self.project.read(cx).git_store().clone();
290 let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
291 let context_task = self.reload_context(cx);
292 let window_handle = window.window_handle();
293
294 cx.spawn(async move |_this, cx| {
295 let (checkpoint, loaded_context) = future::join(checkpoint, context_task).await;
296 let loaded_context = loaded_context.unwrap_or_default();
297
298 thread
299 .update(cx, |thread, cx| {
300 thread.insert_user_message(user_message, loaded_context, checkpoint.ok(), cx);
301 })
302 .log_err();
303
304 thread
305 .update(cx, |thread, cx| {
306 thread.advance_prompt_id();
307 thread.send_to_model(model, Some(window_handle), cx);
308 })
309 .log_err();
310 })
311 .detach();
312 }
313
314 fn stop_current_and_send_new_message(&mut self, window: &mut Window, cx: &mut Context<Self>) {
315 self.thread.update(cx, |thread, cx| {
316 thread.cancel_editing(cx);
317 });
318
319 let cancelled = self.thread.update(cx, |thread, cx| {
320 thread.cancel_last_completion(Some(window.window_handle()), cx)
321 });
322
323 if cancelled {
324 self.set_editor_is_expanded(false, cx);
325 self.send_to_model(window, cx);
326 }
327 }
328
329 fn handle_context_strip_event(
330 &mut self,
331 _context_strip: &Entity<ContextStrip>,
332 event: &ContextStripEvent,
333 window: &mut Window,
334 cx: &mut Context<Self>,
335 ) {
336 match event {
337 ContextStripEvent::PickerDismissed
338 | ContextStripEvent::BlurredEmpty
339 | ContextStripEvent::BlurredDown => {
340 let editor_focus_handle = self.editor.focus_handle(cx);
341 window.focus(&editor_focus_handle);
342 }
343 ContextStripEvent::BlurredUp => {}
344 }
345 }
346
347 fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
348 if self.context_picker_menu_handle.is_deployed() {
349 cx.propagate();
350 } else {
351 self.context_strip.focus_handle(cx).focus(window);
352 }
353 }
354
355 fn paste(&mut self, _: &Paste, _: &mut Window, cx: &mut Context<Self>) {
356 let images = cx
357 .read_from_clipboard()
358 .map(|item| {
359 item.into_entries()
360 .filter_map(|entry| {
361 if let ClipboardEntry::Image(image) = entry {
362 Some(image)
363 } else {
364 None
365 }
366 })
367 .collect::<Vec<_>>()
368 })
369 .unwrap_or_default();
370
371 if images.is_empty() {
372 return;
373 }
374 cx.stop_propagation();
375
376 self.context_store.update(cx, |store, cx| {
377 for image in images {
378 store.add_image(Arc::new(image), cx);
379 }
380 });
381 }
382
383 fn handle_review_click(&mut self, window: &mut Window, cx: &mut Context<Self>) {
384 self.edits_expanded = true;
385 AgentDiff::deploy(self.thread.clone(), self.workspace.clone(), window, cx).log_err();
386 cx.notify();
387 }
388
389 fn handle_file_click(
390 &self,
391 buffer: Entity<Buffer>,
392 window: &mut Window,
393 cx: &mut Context<Self>,
394 ) {
395 if let Ok(diff) = AgentDiff::deploy(self.thread.clone(), self.workspace.clone(), window, cx)
396 {
397 let path_key = multi_buffer::PathKey::for_buffer(&buffer, cx);
398 diff.update(cx, |diff, cx| diff.move_to_path(path_key, window, cx));
399 }
400 }
401
402 fn render_max_mode_toggle(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
403 if !cx.has_flag::<NewBillingFeatureFlag>() {
404 return None;
405 }
406
407 let thread = self.thread.read(cx);
408 let model = thread.configured_model();
409 if !model?.model.supports_max_mode() {
410 return None;
411 }
412
413 let active_completion_mode = thread.completion_mode();
414
415 Some(
416 IconButton::new("max-mode", IconName::SquarePlus)
417 .icon_size(IconSize::Small)
418 .toggle_state(active_completion_mode == Some(CompletionMode::Max))
419 .on_click(cx.listener(move |this, _event, _window, cx| {
420 this.thread.update(cx, |thread, _cx| {
421 thread.set_completion_mode(match active_completion_mode {
422 Some(CompletionMode::Max) => Some(CompletionMode::Normal),
423 Some(CompletionMode::Normal) | None => Some(CompletionMode::Max),
424 });
425 });
426 }))
427 .tooltip(Tooltip::text("Max Mode"))
428 .into_any_element(),
429 )
430 }
431
432 fn render_editor(
433 &self,
434 font_size: Rems,
435 line_height: Pixels,
436 window: &mut Window,
437 cx: &mut Context<Self>,
438 ) -> Div {
439 let thread = self.thread.read(cx);
440 let model = thread.configured_model();
441
442 let editor_bg_color = cx.theme().colors().editor_background;
443 let is_generating = thread.is_generating();
444 let focus_handle = self.editor.focus_handle(cx);
445
446 let is_model_selected = model.is_some();
447 let is_editor_empty = self.is_editor_empty(cx);
448
449 let incompatible_tools = model
450 .as_ref()
451 .map(|model| {
452 self.incompatible_tools_state.update(cx, |state, cx| {
453 state
454 .incompatible_tools(&model.model, cx)
455 .iter()
456 .cloned()
457 .collect::<Vec<_>>()
458 })
459 })
460 .unwrap_or_default();
461
462 let is_editor_expanded = self.editor_is_expanded;
463 let expand_icon = if is_editor_expanded {
464 IconName::Minimize
465 } else {
466 IconName::Maximize
467 };
468
469 v_flex()
470 .key_context("MessageEditor")
471 .on_action(cx.listener(Self::chat))
472 .on_action(cx.listener(|this, _: &ToggleProfileSelector, window, cx| {
473 this.profile_selector
474 .read(cx)
475 .menu_handle()
476 .toggle(window, cx);
477 }))
478 .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
479 this.model_selector
480 .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
481 }))
482 .on_action(cx.listener(Self::toggle_context_picker))
483 .on_action(cx.listener(Self::remove_all_context))
484 .on_action(cx.listener(Self::move_up))
485 .on_action(cx.listener(Self::toggle_chat_mode))
486 .on_action(cx.listener(Self::expand_message_editor))
487 .capture_action(cx.listener(Self::paste))
488 .gap_2()
489 .p_2()
490 .bg(editor_bg_color)
491 .border_t_1()
492 .border_color(cx.theme().colors().border)
493 .child(
494 h_flex()
495 .items_start()
496 .justify_between()
497 .child(self.context_strip.clone())
498 .when(focus_handle.is_focused(window), |this| {
499 this.child(
500 IconButton::new("toggle-height", expand_icon)
501 .icon_size(IconSize::XSmall)
502 .icon_color(Color::Muted)
503 .tooltip({
504 let focus_handle = focus_handle.clone();
505 move |window, cx| {
506 let expand_label = if is_editor_expanded {
507 "Minimize Message Editor".to_string()
508 } else {
509 "Expand Message Editor".to_string()
510 };
511
512 Tooltip::for_action_in(
513 expand_label,
514 &ExpandMessageEditor,
515 &focus_handle,
516 window,
517 cx,
518 )
519 }
520 })
521 .on_click(cx.listener(|_, _, window, cx| {
522 window.dispatch_action(Box::new(ExpandMessageEditor), cx);
523 })),
524 )
525 }),
526 )
527 .child(
528 v_flex()
529 .size_full()
530 .gap_4()
531 .when(is_editor_expanded, |this| {
532 this.h(vh(0.8, window)).justify_between()
533 })
534 .child(
535 div()
536 .min_h_16()
537 .when(is_editor_expanded, |this| this.h_full())
538 .child({
539 let settings = ThemeSettings::get_global(cx);
540
541 let text_style = TextStyle {
542 color: cx.theme().colors().text,
543 font_family: settings.buffer_font.family.clone(),
544 font_fallbacks: settings.buffer_font.fallbacks.clone(),
545 font_features: settings.buffer_font.features.clone(),
546 font_size: font_size.into(),
547 line_height: line_height.into(),
548 ..Default::default()
549 };
550
551 EditorElement::new(
552 &self.editor,
553 EditorStyle {
554 background: editor_bg_color,
555 local_player: cx.theme().players().local(),
556 text: text_style,
557 syntax: cx.theme().syntax().clone(),
558 ..Default::default()
559 },
560 )
561 .into_any()
562 }),
563 )
564 .child(
565 h_flex()
566 .flex_none()
567 .justify_between()
568 .child(h_flex().gap_2().child(self.profile_selector.clone()))
569 .child(
570 h_flex()
571 .gap_1()
572 .when(!incompatible_tools.is_empty(), |this| {
573 this.child(
574 IconButton::new(
575 "tools-incompatible-warning",
576 IconName::Warning,
577 )
578 .icon_color(Color::Warning)
579 .icon_size(IconSize::Small)
580 .tooltip({
581 move |_, cx| {
582 cx.new(|_| IncompatibleToolsTooltip {
583 incompatible_tools: incompatible_tools
584 .clone(),
585 })
586 .into()
587 }
588 }),
589 )
590 })
591 .children(self.render_max_mode_toggle(cx))
592 .child(self.model_selector.clone())
593 .map({
594 let focus_handle = focus_handle.clone();
595 move |parent| {
596 if is_generating {
597 parent
598 .when(is_editor_empty, |parent| {
599 parent.child(
600 IconButton::new(
601 "stop-generation",
602 IconName::StopFilled,
603 )
604 .icon_color(Color::Error)
605 .style(ButtonStyle::Tinted(
606 ui::TintColor::Error,
607 ))
608 .tooltip(move |window, cx| {
609 Tooltip::for_action(
610 "Stop Generation",
611 &editor::actions::Cancel,
612 window,
613 cx,
614 )
615 })
616 .on_click({
617 let focus_handle =
618 focus_handle.clone();
619 move |_event, window, cx| {
620 focus_handle.dispatch_action(
621 &editor::actions::Cancel,
622 window,
623 cx,
624 );
625 }
626 })
627 .with_animation(
628 "pulsating-label",
629 Animation::new(
630 Duration::from_secs(2),
631 )
632 .repeat()
633 .with_easing(pulsating_between(
634 0.4, 1.0,
635 )),
636 |icon_button, delta| {
637 icon_button.alpha(delta)
638 },
639 ),
640 )
641 })
642 .when(!is_editor_empty, |parent| {
643 parent.child(
644 IconButton::new(
645 "send-message",
646 IconName::Send,
647 )
648 .icon_color(Color::Accent)
649 .style(ButtonStyle::Filled)
650 .disabled(!is_model_selected)
651 .on_click({
652 let focus_handle =
653 focus_handle.clone();
654 move |_event, window, cx| {
655 focus_handle.dispatch_action(
656 &Chat, window, cx,
657 );
658 }
659 })
660 .tooltip(move |window, cx| {
661 Tooltip::for_action(
662 "Stop and Send New Message",
663 &Chat,
664 window,
665 cx,
666 )
667 }),
668 )
669 })
670 } else {
671 parent.child(
672 IconButton::new("send-message", IconName::Send)
673 .icon_color(Color::Accent)
674 .style(ButtonStyle::Filled)
675 .disabled(
676 is_editor_empty || !is_model_selected,
677 )
678 .on_click({
679 let focus_handle = focus_handle.clone();
680 move |_event, window, cx| {
681 focus_handle.dispatch_action(
682 &Chat, window, cx,
683 );
684 }
685 })
686 .when(
687 !is_editor_empty && is_model_selected,
688 |button| {
689 button.tooltip(move |window, cx| {
690 Tooltip::for_action(
691 "Send", &Chat, window, cx,
692 )
693 })
694 },
695 )
696 .when(is_editor_empty, |button| {
697 button.tooltip(Tooltip::text(
698 "Type a message to submit",
699 ))
700 })
701 .when(!is_model_selected, |button| {
702 button.tooltip(Tooltip::text(
703 "Select a model to continue",
704 ))
705 }),
706 )
707 }
708 }
709 }),
710 ),
711 ),
712 )
713 }
714
715 fn render_changed_buffers(
716 &self,
717 changed_buffers: &BTreeMap<Entity<Buffer>, Entity<BufferDiff>>,
718 window: &mut Window,
719 cx: &mut Context<Self>,
720 ) -> Div {
721 let focus_handle = self.editor.focus_handle(cx);
722
723 let editor_bg_color = cx.theme().colors().editor_background;
724 let border_color = cx.theme().colors().border;
725 let active_color = cx.theme().colors().element_selected;
726 let bg_edit_files_disclosure = editor_bg_color.blend(active_color.opacity(0.3));
727
728 let is_edit_changes_expanded = self.edits_expanded;
729 let is_generating = self.thread.read(cx).is_generating();
730
731 v_flex()
732 .mt_1()
733 .mx_2()
734 .bg(bg_edit_files_disclosure)
735 .border_1()
736 .border_b_0()
737 .border_color(border_color)
738 .rounded_t_md()
739 .shadow(smallvec::smallvec![gpui::BoxShadow {
740 color: gpui::black().opacity(0.15),
741 offset: point(px(1.), px(-1.)),
742 blur_radius: px(3.),
743 spread_radius: px(0.),
744 }])
745 .child(
746 h_flex()
747 .id("edits-container")
748 .cursor_pointer()
749 .p_1p5()
750 .justify_between()
751 .when(is_edit_changes_expanded, |this| {
752 this.border_b_1().border_color(border_color)
753 })
754 .on_click(
755 cx.listener(|this, _, window, cx| this.handle_review_click(window, cx)),
756 )
757 .child(
758 h_flex()
759 .gap_1()
760 .child(
761 Disclosure::new("edits-disclosure", is_edit_changes_expanded)
762 .on_click(cx.listener(|this, _ev, _window, cx| {
763 this.edits_expanded = !this.edits_expanded;
764 cx.notify();
765 })),
766 )
767 .map(|this| {
768 if is_generating {
769 this.child(
770 AnimatedLabel::new(format!(
771 "Editing {} {}",
772 changed_buffers.len(),
773 if changed_buffers.len() == 1 {
774 "file"
775 } else {
776 "files"
777 }
778 ))
779 .size(LabelSize::Small),
780 )
781 } else {
782 this.child(
783 Label::new("Edits")
784 .size(LabelSize::Small)
785 .color(Color::Muted),
786 )
787 .child(
788 Label::new("•").size(LabelSize::XSmall).color(Color::Muted),
789 )
790 .child(
791 Label::new(format!(
792 "{} {}",
793 changed_buffers.len(),
794 if changed_buffers.len() == 1 {
795 "file"
796 } else {
797 "files"
798 }
799 ))
800 .size(LabelSize::Small)
801 .color(Color::Muted),
802 )
803 }
804 }),
805 )
806 .child(
807 Button::new("review", "Review Changes")
808 .label_size(LabelSize::Small)
809 .key_binding(
810 KeyBinding::for_action_in(
811 &OpenAgentDiff,
812 &focus_handle,
813 window,
814 cx,
815 )
816 .map(|kb| kb.size(rems_from_px(12.))),
817 )
818 .on_click(cx.listener(|this, _, window, cx| {
819 this.handle_review_click(window, cx)
820 })),
821 ),
822 )
823 .when(is_edit_changes_expanded, |parent| {
824 parent.child(
825 v_flex().children(changed_buffers.into_iter().enumerate().flat_map(
826 |(index, (buffer, _diff))| {
827 let file = buffer.read(cx).file()?;
828 let path = file.path();
829
830 let parent_label = path.parent().and_then(|parent| {
831 let parent_str = parent.to_string_lossy();
832
833 if parent_str.is_empty() {
834 None
835 } else {
836 Some(
837 Label::new(format!(
838 "/{}{}",
839 parent_str,
840 std::path::MAIN_SEPARATOR_STR
841 ))
842 .color(Color::Muted)
843 .size(LabelSize::XSmall)
844 .buffer_font(cx),
845 )
846 }
847 });
848
849 let name_label = path.file_name().map(|name| {
850 Label::new(name.to_string_lossy().to_string())
851 .size(LabelSize::XSmall)
852 .buffer_font(cx)
853 });
854
855 let file_icon = FileIcons::get_icon(&path, cx)
856 .map(Icon::from_path)
857 .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
858 .unwrap_or_else(|| {
859 Icon::new(IconName::File)
860 .color(Color::Muted)
861 .size(IconSize::Small)
862 });
863
864 let hover_color = cx
865 .theme()
866 .colors()
867 .element_background
868 .blend(cx.theme().colors().editor_foreground.opacity(0.025));
869
870 let overlay_gradient = linear_gradient(
871 90.,
872 linear_color_stop(editor_bg_color, 1.),
873 linear_color_stop(editor_bg_color.opacity(0.2), 0.),
874 );
875
876 let overlay_gradient_hover = linear_gradient(
877 90.,
878 linear_color_stop(hover_color, 1.),
879 linear_color_stop(hover_color.opacity(0.2), 0.),
880 );
881
882 let element = h_flex()
883 .group("edited-code")
884 .id(("file-container", index))
885 .cursor_pointer()
886 .relative()
887 .py_1()
888 .pl_2()
889 .pr_1()
890 .gap_2()
891 .justify_between()
892 .bg(cx.theme().colors().editor_background)
893 .hover(|style| style.bg(hover_color))
894 .when(index < changed_buffers.len() - 1, |parent| {
895 parent.border_color(border_color).border_b_1()
896 })
897 .child(
898 h_flex()
899 .id("file-name")
900 .pr_8()
901 .gap_1p5()
902 .max_w_full()
903 .overflow_x_scroll()
904 .child(file_icon)
905 .child(
906 h_flex()
907 .gap_0p5()
908 .children(name_label)
909 .children(parent_label),
910 ), // TODO: Implement line diff
911 // .child(Label::new("+").color(Color::Created))
912 // .child(Label::new("-").color(Color::Deleted)),
913 )
914 .child(
915 div().visible_on_hover("edited-code").child(
916 Button::new("review", "Review")
917 .label_size(LabelSize::Small)
918 .on_click({
919 let buffer = buffer.clone();
920 cx.listener(move |this, _, window, cx| {
921 this.handle_file_click(
922 buffer.clone(),
923 window,
924 cx,
925 );
926 })
927 }),
928 ),
929 )
930 .child(
931 div()
932 .id("gradient-overlay")
933 .absolute()
934 .h_5_6()
935 .w_12()
936 .bottom_0()
937 .right(px(52.))
938 .bg(overlay_gradient)
939 .group_hover("edited-code", |style| {
940 style.bg(overlay_gradient_hover)
941 }),
942 )
943 .on_click({
944 let buffer = buffer.clone();
945 cx.listener(move |this, _, window, cx| {
946 this.handle_file_click(buffer.clone(), window, cx);
947 })
948 });
949
950 Some(element)
951 },
952 )),
953 )
954 })
955 }
956
957 fn render_token_limit_callout(
958 &self,
959 line_height: Pixels,
960 token_usage_ratio: TokenUsageRatio,
961 cx: &mut Context<Self>,
962 ) -> Div {
963 let heading = if token_usage_ratio == TokenUsageRatio::Exceeded {
964 "Thread reached the token limit"
965 } else {
966 "Thread reaching the token limit soon"
967 };
968
969 h_flex()
970 .p_2()
971 .gap_2()
972 .flex_wrap()
973 .justify_between()
974 .bg(
975 if token_usage_ratio == TokenUsageRatio::Exceeded {
976 cx.theme().status().error_background.opacity(0.1)
977 } else {
978 cx.theme().status().warning_background.opacity(0.1)
979 })
980 .border_t_1()
981 .border_color(cx.theme().colors().border)
982 .child(
983 h_flex()
984 .gap_2()
985 .items_start()
986 .child(
987 h_flex()
988 .h(line_height)
989 .justify_center()
990 .child(
991 if token_usage_ratio == TokenUsageRatio::Exceeded {
992 Icon::new(IconName::X)
993 .color(Color::Error)
994 .size(IconSize::XSmall)
995 } else {
996 Icon::new(IconName::Warning)
997 .color(Color::Warning)
998 .size(IconSize::XSmall)
999 }
1000 ),
1001 )
1002 .child(
1003 v_flex()
1004 .mr_auto()
1005 .child(Label::new(heading).size(LabelSize::Small))
1006 .child(
1007 Label::new(
1008 "Start a new thread from a summary to continue the conversation.",
1009 )
1010 .size(LabelSize::Small)
1011 .color(Color::Muted),
1012 ),
1013 ),
1014 )
1015 .child(
1016 Button::new("new-thread", "Start New Thread")
1017 .on_click(cx.listener(|this, _, window, cx| {
1018 let from_thread_id = Some(this.thread.read(cx).id().clone());
1019
1020 window.dispatch_action(Box::new(NewThread {
1021 from_thread_id
1022 }), cx);
1023 }))
1024 .icon(IconName::Plus)
1025 .icon_position(IconPosition::Start)
1026 .icon_size(IconSize::Small)
1027 .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1028 .label_size(LabelSize::Small),
1029 )
1030 }
1031
1032 pub fn last_estimated_token_count(&self) -> Option<usize> {
1033 self.last_estimated_token_count
1034 }
1035
1036 pub fn is_waiting_to_update_token_count(&self) -> bool {
1037 self.update_token_count_task.is_some()
1038 }
1039
1040 fn reload_context(&mut self, cx: &mut Context<Self>) -> Task<Option<ContextLoadResult>> {
1041 let load_task = cx.spawn(async move |this, cx| {
1042 let Ok(load_task) = this.update(cx, |this, cx| {
1043 let new_context = this.context_store.read_with(cx, |context_store, cx| {
1044 context_store.new_context_for_thread(this.thread.read(cx))
1045 });
1046 load_context(new_context, &this.project, &this.prompt_store, cx)
1047 }) else {
1048 return;
1049 };
1050 let result = load_task.await;
1051 this.update(cx, |this, cx| {
1052 this.last_loaded_context = Some(result);
1053 this.load_context_task = None;
1054 this.message_or_context_changed(false, cx);
1055 })
1056 .ok();
1057 });
1058 // Replace existing load task, if any, causing it to be cancelled.
1059 let load_task = load_task.shared();
1060 self.load_context_task = Some(load_task.clone());
1061 cx.spawn(async move |this, cx| {
1062 load_task.await;
1063 this.read_with(cx, |this, _cx| this.last_loaded_context.clone())
1064 .ok()
1065 .flatten()
1066 })
1067 }
1068
1069 fn handle_message_changed(&mut self, cx: &mut Context<Self>) {
1070 self.message_or_context_changed(true, cx);
1071 }
1072
1073 fn message_or_context_changed(&mut self, debounce: bool, cx: &mut Context<Self>) {
1074 cx.emit(MessageEditorEvent::Changed);
1075 self.update_token_count_task.take();
1076
1077 let Some(model) = self.thread.read(cx).configured_model() else {
1078 self.last_estimated_token_count.take();
1079 return;
1080 };
1081
1082 let editor = self.editor.clone();
1083
1084 self.update_token_count_task = Some(cx.spawn(async move |this, cx| {
1085 if debounce {
1086 cx.background_executor()
1087 .timer(Duration::from_millis(200))
1088 .await;
1089 }
1090
1091 let token_count = if let Some(task) = this.update(cx, |this, cx| {
1092 let loaded_context = this
1093 .last_loaded_context
1094 .as_ref()
1095 .map(|context_load_result| &context_load_result.loaded_context);
1096 let message_text = editor.read(cx).text(cx);
1097
1098 if message_text.is_empty()
1099 && loaded_context.map_or(true, |loaded_context| loaded_context.is_empty())
1100 {
1101 return None;
1102 }
1103
1104 let mut request_message = LanguageModelRequestMessage {
1105 role: language_model::Role::User,
1106 content: Vec::new(),
1107 cache: false,
1108 };
1109
1110 if let Some(loaded_context) = loaded_context {
1111 loaded_context.add_to_request_message(&mut request_message);
1112 }
1113
1114 if !message_text.is_empty() {
1115 request_message
1116 .content
1117 .push(MessageContent::Text(message_text));
1118 }
1119
1120 let request = language_model::LanguageModelRequest {
1121 thread_id: None,
1122 prompt_id: None,
1123 mode: None,
1124 messages: vec![request_message],
1125 tools: vec![],
1126 stop: vec![],
1127 temperature: None,
1128 };
1129
1130 Some(model.model.count_tokens(request, cx))
1131 })? {
1132 task.await?
1133 } else {
1134 0
1135 };
1136
1137 this.update(cx, |this, cx| {
1138 this.last_estimated_token_count = Some(token_count);
1139 cx.emit(MessageEditorEvent::EstimatedTokenCount);
1140 this.update_token_count_task.take();
1141 })
1142 }));
1143 }
1144}
1145
1146impl EventEmitter<MessageEditorEvent> for MessageEditor {}
1147
1148pub enum MessageEditorEvent {
1149 EstimatedTokenCount,
1150 Changed,
1151}
1152
1153impl Focusable for MessageEditor {
1154 fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
1155 self.editor.focus_handle(cx)
1156 }
1157}
1158
1159impl Render for MessageEditor {
1160 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1161 let thread = self.thread.read(cx);
1162 let token_usage_ratio = thread
1163 .total_token_usage()
1164 .map_or(TokenUsageRatio::Normal, |total_token_usage| {
1165 total_token_usage.ratio()
1166 });
1167
1168 let action_log = self.thread.read(cx).action_log();
1169 let changed_buffers = action_log.read(cx).changed_buffers(cx);
1170
1171 let font_size = TextSize::Small.rems(cx);
1172 let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1173
1174 v_flex()
1175 .size_full()
1176 .when(changed_buffers.len() > 0, |parent| {
1177 parent.child(self.render_changed_buffers(&changed_buffers, window, cx))
1178 })
1179 .child(self.render_editor(font_size, line_height, window, cx))
1180 .when(token_usage_ratio != TokenUsageRatio::Normal, |parent| {
1181 parent.child(self.render_token_limit_callout(line_height, token_usage_ratio, cx))
1182 })
1183 }
1184}