message_editor.rs

   1use std::collections::BTreeMap;
   2use std::sync::Arc;
   3
   4use crate::assistant_model_selector::{AssistantModelSelector, ModelType};
   5use crate::context::{AgentContextKey, ContextCreasesAddon, ContextLoadResult, load_context};
   6use crate::tool_compatibility::{IncompatibleToolsState, IncompatibleToolsTooltip};
   7use crate::ui::{
   8    AnimatedLabel, MaxModeTooltip,
   9    preview::{AgentPreview, UsageCallout},
  10};
  11use buffer_diff::BufferDiff;
  12use client::UserStore;
  13use collections::{HashMap, HashSet};
  14use editor::actions::{MoveUp, Paste};
  15use editor::{
  16    AnchorRangeExt, ContextMenuOptions, ContextMenuPlacement, Editor, EditorElement, EditorEvent,
  17    EditorMode, EditorStyle, MultiBuffer,
  18};
  19use feature_flags::{FeatureFlagAppExt, NewBillingFeatureFlag};
  20use file_icons::FileIcons;
  21use fs::Fs;
  22use futures::future::Shared;
  23use futures::{FutureExt as _, future};
  24use gpui::{
  25    Animation, AnimationExt, App, ClipboardEntry, Entity, EventEmitter, Focusable, Subscription,
  26    Task, TextStyle, WeakEntity, linear_color_stop, linear_gradient, point, pulsating_between,
  27};
  28use language::{Buffer, Language};
  29use language_model::{ConfiguredModel, LanguageModelRequestMessage, MessageContent, RequestUsage};
  30use language_model_selector::ToggleModelSelector;
  31use multi_buffer;
  32use project::Project;
  33use prompt_store::PromptStore;
  34use proto::Plan;
  35use settings::Settings;
  36use std::time::Duration;
  37use theme::ThemeSettings;
  38use ui::{Disclosure, DocumentationSide, KeyBinding, PopoverMenuHandle, Tooltip, prelude::*};
  39use util::{ResultExt as _, maybe};
  40use workspace::dock::DockPosition;
  41use workspace::{CollaboratorId, Workspace};
  42use zed_llm_client::CompletionMode;
  43
  44use crate::context_picker::{ContextPicker, ContextPickerCompletionProvider, crease_for_mention};
  45use crate::context_store::ContextStore;
  46use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
  47use crate::profile_selector::ProfileSelector;
  48use crate::thread::{MessageCrease, Thread, TokenUsageRatio};
  49use crate::thread_store::{TextThreadStore, ThreadStore};
  50use crate::{
  51    ActiveThread, AgentDiffPane, Chat, ExpandMessageEditor, Follow, NewThread, OpenAgentDiff,
  52    RemoveAllContext, ToggleContextPicker, ToggleProfileSelector, register_agent_preview,
  53};
  54
  55#[derive(RegisterComponent)]
  56pub struct MessageEditor {
  57    thread: Entity<Thread>,
  58    incompatible_tools_state: Entity<IncompatibleToolsState>,
  59    editor: Entity<Editor>,
  60    workspace: WeakEntity<Workspace>,
  61    project: Entity<Project>,
  62    user_store: Entity<UserStore>,
  63    context_store: Entity<ContextStore>,
  64    prompt_store: Option<Entity<PromptStore>>,
  65    context_strip: Entity<ContextStrip>,
  66    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
  67    model_selector: Entity<AssistantModelSelector>,
  68    last_loaded_context: Option<ContextLoadResult>,
  69    load_context_task: Option<Shared<Task<()>>>,
  70    profile_selector: Entity<ProfileSelector>,
  71    edits_expanded: bool,
  72    editor_is_expanded: bool,
  73    last_estimated_token_count: Option<usize>,
  74    update_token_count_task: Option<Task<()>>,
  75    _subscriptions: Vec<Subscription>,
  76}
  77
  78const MAX_EDITOR_LINES: usize = 8;
  79
  80pub(crate) fn create_editor(
  81    workspace: WeakEntity<Workspace>,
  82    context_store: WeakEntity<ContextStore>,
  83    thread_store: WeakEntity<ThreadStore>,
  84    text_thread_store: WeakEntity<TextThreadStore>,
  85    window: &mut Window,
  86    cx: &mut App,
  87) -> Entity<Editor> {
  88    let language = Language::new(
  89        language::LanguageConfig {
  90            completion_query_characters: HashSet::from_iter(['.', '-', '_', '@']),
  91            ..Default::default()
  92        },
  93        None,
  94    );
  95
  96    let editor = cx.new(|cx| {
  97        let buffer = cx.new(|cx| Buffer::local("", cx).with_language(Arc::new(language), cx));
  98        let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
  99        let mut editor = Editor::new(
 100            editor::EditorMode::AutoHeight {
 101                max_lines: MAX_EDITOR_LINES,
 102            },
 103            buffer,
 104            None,
 105            window,
 106            cx,
 107        );
 108        editor.set_placeholder_text("Message the agent – @ to include context", cx);
 109        editor.set_show_indent_guides(false, cx);
 110        editor.set_soft_wrap();
 111        editor.set_context_menu_options(ContextMenuOptions {
 112            min_entries_visible: 12,
 113            max_entries_visible: 12,
 114            placement: Some(ContextMenuPlacement::Above),
 115        });
 116        editor.register_addon(ContextCreasesAddon::new());
 117        editor
 118    });
 119
 120    let editor_entity = editor.downgrade();
 121    editor.update(cx, |editor, _| {
 122        editor.set_completion_provider(Some(Box::new(ContextPickerCompletionProvider::new(
 123            workspace,
 124            context_store,
 125            Some(thread_store),
 126            Some(text_thread_store),
 127            editor_entity,
 128            None,
 129        ))));
 130    });
 131    editor
 132}
 133
 134fn documentation_side(position: DockPosition) -> DocumentationSide {
 135    match position {
 136        DockPosition::Left => DocumentationSide::Right,
 137        DockPosition::Bottom => DocumentationSide::Left,
 138        DockPosition::Right => DocumentationSide::Left,
 139    }
 140}
 141
 142impl MessageEditor {
 143    pub fn new(
 144        fs: Arc<dyn Fs>,
 145        workspace: WeakEntity<Workspace>,
 146        user_store: Entity<UserStore>,
 147        context_store: Entity<ContextStore>,
 148        prompt_store: Option<Entity<PromptStore>>,
 149        thread_store: WeakEntity<ThreadStore>,
 150        text_thread_store: WeakEntity<TextThreadStore>,
 151        thread: Entity<Thread>,
 152        dock_position: DockPosition,
 153        window: &mut Window,
 154        cx: &mut Context<Self>,
 155    ) -> Self {
 156        let context_picker_menu_handle = PopoverMenuHandle::default();
 157        let model_selector_menu_handle = PopoverMenuHandle::default();
 158
 159        let editor = create_editor(
 160            workspace.clone(),
 161            context_store.downgrade(),
 162            thread_store.clone(),
 163            text_thread_store.clone(),
 164            window,
 165            cx,
 166        );
 167
 168        let context_strip = cx.new(|cx| {
 169            ContextStrip::new(
 170                context_store.clone(),
 171                workspace.clone(),
 172                Some(thread_store.clone()),
 173                Some(text_thread_store.clone()),
 174                context_picker_menu_handle.clone(),
 175                SuggestContextKind::File,
 176                window,
 177                cx,
 178            )
 179        });
 180
 181        let incompatible_tools =
 182            cx.new(|cx| IncompatibleToolsState::new(thread.read(cx).tools().clone(), cx));
 183
 184        let subscriptions = vec![
 185            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event),
 186            cx.subscribe(&editor, |this, _, event, cx| match event {
 187                EditorEvent::BufferEdited => this.handle_message_changed(cx),
 188                _ => {}
 189            }),
 190            cx.observe(&context_store, |this, _, cx| {
 191                // When context changes, reload it for token counting.
 192                let _ = this.reload_context(cx);
 193            }),
 194            cx.observe(&thread.read(cx).action_log().clone(), |_, _, cx| {
 195                cx.notify()
 196            }),
 197        ];
 198
 199        let model_selector = cx.new(|cx| {
 200            AssistantModelSelector::new(
 201                fs.clone(),
 202                model_selector_menu_handle,
 203                editor.focus_handle(cx),
 204                ModelType::Default(thread.clone()),
 205                window,
 206                cx,
 207            )
 208        });
 209
 210        Self {
 211            editor: editor.clone(),
 212            project: thread.read(cx).project().clone(),
 213            user_store,
 214            thread,
 215            incompatible_tools_state: incompatible_tools.clone(),
 216            workspace,
 217            context_store,
 218            prompt_store,
 219            context_strip,
 220            context_picker_menu_handle,
 221            load_context_task: None,
 222            last_loaded_context: None,
 223            model_selector,
 224            edits_expanded: false,
 225            editor_is_expanded: false,
 226            profile_selector: cx.new(|cx| {
 227                ProfileSelector::new(
 228                    fs,
 229                    thread_store,
 230                    editor.focus_handle(cx),
 231                    documentation_side(dock_position),
 232                    cx,
 233                )
 234            }),
 235            last_estimated_token_count: None,
 236            update_token_count_task: None,
 237            _subscriptions: subscriptions,
 238        }
 239    }
 240
 241    pub fn context_store(&self) -> &Entity<ContextStore> {
 242        &self.context_store
 243    }
 244
 245    pub fn expand_message_editor(
 246        &mut self,
 247        _: &ExpandMessageEditor,
 248        _window: &mut Window,
 249        cx: &mut Context<Self>,
 250    ) {
 251        self.set_editor_is_expanded(!self.editor_is_expanded, cx);
 252    }
 253
 254    fn set_editor_is_expanded(&mut self, is_expanded: bool, cx: &mut Context<Self>) {
 255        self.editor_is_expanded = is_expanded;
 256        self.editor.update(cx, |editor, _| {
 257            if self.editor_is_expanded {
 258                editor.set_mode(EditorMode::Full {
 259                    scale_ui_elements_with_buffer_font_size: false,
 260                    show_active_line_background: false,
 261                    sized_by_content: false,
 262                })
 263            } else {
 264                editor.set_mode(EditorMode::AutoHeight {
 265                    max_lines: MAX_EDITOR_LINES,
 266                })
 267            }
 268        });
 269        cx.notify();
 270    }
 271
 272    fn toggle_context_picker(
 273        &mut self,
 274        _: &ToggleContextPicker,
 275        window: &mut Window,
 276        cx: &mut Context<Self>,
 277    ) {
 278        self.context_picker_menu_handle.toggle(window, cx);
 279    }
 280
 281    pub fn remove_all_context(
 282        &mut self,
 283        _: &RemoveAllContext,
 284        _window: &mut Window,
 285        cx: &mut Context<Self>,
 286    ) {
 287        self.context_store.update(cx, |store, _cx| store.clear());
 288        cx.notify();
 289    }
 290
 291    fn chat(&mut self, _: &Chat, window: &mut Window, cx: &mut Context<Self>) {
 292        if self.is_editor_empty(cx) {
 293            return;
 294        }
 295
 296        self.thread.update(cx, |thread, cx| {
 297            thread.cancel_editing(cx);
 298        });
 299
 300        if self.thread.read(cx).is_generating() {
 301            self.stop_current_and_send_new_message(window, cx);
 302            return;
 303        }
 304
 305        self.set_editor_is_expanded(false, cx);
 306        self.send_to_model(window, cx);
 307
 308        cx.notify();
 309    }
 310
 311    fn is_editor_empty(&self, cx: &App) -> bool {
 312        self.editor.read(cx).text(cx).trim().is_empty()
 313    }
 314
 315    fn send_to_model(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 316        let Some(ConfiguredModel { model, provider }) = self
 317            .thread
 318            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
 319        else {
 320            return;
 321        };
 322
 323        if provider.must_accept_terms(cx) {
 324            cx.notify();
 325            return;
 326        }
 327
 328        let (user_message, user_message_creases) = self.editor.update(cx, |editor, cx| {
 329            let creases = extract_message_creases(editor, cx);
 330            let text = editor.text(cx);
 331            editor.clear(window, cx);
 332            (text, creases)
 333        });
 334
 335        self.last_estimated_token_count.take();
 336        cx.emit(MessageEditorEvent::EstimatedTokenCount);
 337
 338        let thread = self.thread.clone();
 339        let git_store = self.project.read(cx).git_store().clone();
 340        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
 341        let context_task = self.reload_context(cx);
 342        let window_handle = window.window_handle();
 343
 344        cx.spawn(async move |_this, cx| {
 345            let (checkpoint, loaded_context) = future::join(checkpoint, context_task).await;
 346            let loaded_context = loaded_context.unwrap_or_default();
 347
 348            thread
 349                .update(cx, |thread, cx| {
 350                    thread.insert_user_message(
 351                        user_message,
 352                        loaded_context,
 353                        checkpoint.ok(),
 354                        user_message_creases,
 355                        cx,
 356                    );
 357                })
 358                .log_err();
 359
 360            thread
 361                .update(cx, |thread, cx| {
 362                    thread.advance_prompt_id();
 363                    thread.send_to_model(model, Some(window_handle), cx);
 364                })
 365                .log_err();
 366        })
 367        .detach();
 368    }
 369
 370    fn stop_current_and_send_new_message(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 371        self.thread.update(cx, |thread, cx| {
 372            thread.cancel_editing(cx);
 373        });
 374
 375        let cancelled = self.thread.update(cx, |thread, cx| {
 376            thread.cancel_last_completion(Some(window.window_handle()), cx)
 377        });
 378
 379        if cancelled {
 380            self.set_editor_is_expanded(false, cx);
 381            self.send_to_model(window, cx);
 382        }
 383    }
 384
 385    fn handle_context_strip_event(
 386        &mut self,
 387        _context_strip: &Entity<ContextStrip>,
 388        event: &ContextStripEvent,
 389        window: &mut Window,
 390        cx: &mut Context<Self>,
 391    ) {
 392        match event {
 393            ContextStripEvent::PickerDismissed
 394            | ContextStripEvent::BlurredEmpty
 395            | ContextStripEvent::BlurredDown => {
 396                let editor_focus_handle = self.editor.focus_handle(cx);
 397                window.focus(&editor_focus_handle);
 398            }
 399            ContextStripEvent::BlurredUp => {}
 400        }
 401    }
 402
 403    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
 404        if self.context_picker_menu_handle.is_deployed() {
 405            cx.propagate();
 406        } else {
 407            self.context_strip.focus_handle(cx).focus(window);
 408        }
 409    }
 410
 411    fn paste(&mut self, _: &Paste, _: &mut Window, cx: &mut Context<Self>) {
 412        let images = cx
 413            .read_from_clipboard()
 414            .map(|item| {
 415                item.into_entries()
 416                    .filter_map(|entry| {
 417                        if let ClipboardEntry::Image(image) = entry {
 418                            Some(image)
 419                        } else {
 420                            None
 421                        }
 422                    })
 423                    .collect::<Vec<_>>()
 424            })
 425            .unwrap_or_default();
 426
 427        if images.is_empty() {
 428            return;
 429        }
 430        cx.stop_propagation();
 431
 432        self.context_store.update(cx, |store, cx| {
 433            for image in images {
 434                store.add_image_instance(Arc::new(image), cx);
 435            }
 436        });
 437    }
 438
 439    fn handle_review_click(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 440        self.edits_expanded = true;
 441        AgentDiffPane::deploy(self.thread.clone(), self.workspace.clone(), window, cx).log_err();
 442        cx.notify();
 443    }
 444
 445    fn handle_file_click(
 446        &self,
 447        buffer: Entity<Buffer>,
 448        window: &mut Window,
 449        cx: &mut Context<Self>,
 450    ) {
 451        if let Ok(diff) =
 452            AgentDiffPane::deploy(self.thread.clone(), self.workspace.clone(), window, cx)
 453        {
 454            let path_key = multi_buffer::PathKey::for_buffer(&buffer, cx);
 455            diff.update(cx, |diff, cx| diff.move_to_path(path_key, window, cx));
 456        }
 457    }
 458
 459    fn render_max_mode_toggle(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
 460        if !cx.has_flag::<NewBillingFeatureFlag>() {
 461            return None;
 462        }
 463
 464        let thread = self.thread.read(cx);
 465        let model = thread.configured_model();
 466        if !model?.model.supports_max_mode() {
 467            return None;
 468        }
 469
 470        let active_completion_mode = thread.completion_mode();
 471
 472        Some(
 473            IconButton::new("max-mode", IconName::ZedMaxMode)
 474                .icon_size(IconSize::Small)
 475                .icon_color(Color::Muted)
 476                .toggle_state(active_completion_mode == CompletionMode::Max)
 477                .on_click(cx.listener(move |this, _event, _window, cx| {
 478                    this.thread.update(cx, |thread, _cx| {
 479                        thread.set_completion_mode(match active_completion_mode {
 480                            CompletionMode::Max => CompletionMode::Normal,
 481                            CompletionMode::Normal => CompletionMode::Max,
 482                        });
 483                    });
 484                }))
 485                .tooltip(|_, cx| cx.new(MaxModeTooltip::new).into())
 486                .into_any_element(),
 487        )
 488    }
 489
 490    fn render_follow_toggle(&self, cx: &mut Context<Self>) -> impl IntoElement {
 491        let following = self
 492            .workspace
 493            .read_with(cx, |workspace, _| {
 494                workspace.is_being_followed(CollaboratorId::Agent)
 495            })
 496            .unwrap_or(false);
 497
 498        IconButton::new("follow-agent", IconName::Crosshair)
 499            .icon_size(IconSize::Small)
 500            .icon_color(Color::Muted)
 501            .toggle_state(following)
 502            .selected_icon_color(Some(Color::Custom(cx.theme().players().agent().cursor)))
 503            .tooltip(move |window, cx| {
 504                if following {
 505                    Tooltip::for_action("Stop Following Agent", &Follow, window, cx)
 506                } else {
 507                    Tooltip::with_meta(
 508                        "Follow Agent",
 509                        Some(&Follow),
 510                        "Track the agent's location as it reads and edits files.",
 511                        window,
 512                        cx,
 513                    )
 514                }
 515            })
 516            .on_click(cx.listener(move |this, _, window, cx| {
 517                this.workspace
 518                    .update(cx, |workspace, cx| {
 519                        if following {
 520                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 521                        } else {
 522                            workspace.follow(CollaboratorId::Agent, window, cx);
 523                        }
 524                    })
 525                    .ok();
 526            }))
 527    }
 528
 529    fn render_editor(&self, window: &mut Window, cx: &mut Context<Self>) -> Div {
 530        let thread = self.thread.read(cx);
 531        let model = thread.configured_model();
 532
 533        let editor_bg_color = cx.theme().colors().editor_background;
 534        let is_generating = thread.is_generating();
 535        let focus_handle = self.editor.focus_handle(cx);
 536
 537        let is_model_selected = model.is_some();
 538        let is_editor_empty = self.is_editor_empty(cx);
 539
 540        let incompatible_tools = model
 541            .as_ref()
 542            .map(|model| {
 543                self.incompatible_tools_state.update(cx, |state, cx| {
 544                    state
 545                        .incompatible_tools(&model.model, cx)
 546                        .iter()
 547                        .cloned()
 548                        .collect::<Vec<_>>()
 549                })
 550            })
 551            .unwrap_or_default();
 552
 553        let is_editor_expanded = self.editor_is_expanded;
 554        let expand_icon = if is_editor_expanded {
 555            IconName::Minimize
 556        } else {
 557            IconName::Maximize
 558        };
 559
 560        v_flex()
 561            .key_context("MessageEditor")
 562            .on_action(cx.listener(Self::chat))
 563            .on_action(cx.listener(|this, _: &ToggleProfileSelector, window, cx| {
 564                this.profile_selector
 565                    .read(cx)
 566                    .menu_handle()
 567                    .toggle(window, cx);
 568            }))
 569            .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
 570                this.model_selector
 571                    .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
 572            }))
 573            .on_action(cx.listener(Self::toggle_context_picker))
 574            .on_action(cx.listener(Self::remove_all_context))
 575            .on_action(cx.listener(Self::move_up))
 576            .on_action(cx.listener(Self::expand_message_editor))
 577            .capture_action(cx.listener(Self::paste))
 578            .gap_2()
 579            .p_2()
 580            .bg(editor_bg_color)
 581            .border_t_1()
 582            .border_color(cx.theme().colors().border)
 583            .child(
 584                h_flex()
 585                    .items_start()
 586                    .justify_between()
 587                    .child(self.context_strip.clone())
 588                    .child(
 589                        h_flex()
 590                            .gap_1()
 591                            .when(focus_handle.is_focused(window), |this| {
 592                                this.child(
 593                                    IconButton::new("toggle-height", expand_icon)
 594                                        .icon_size(IconSize::XSmall)
 595                                        .icon_color(Color::Muted)
 596                                        .tooltip({
 597                                            let focus_handle = focus_handle.clone();
 598                                            move |window, cx| {
 599                                                let expand_label = if is_editor_expanded {
 600                                                    "Minimize Message Editor".to_string()
 601                                                } else {
 602                                                    "Expand Message Editor".to_string()
 603                                                };
 604
 605                                                Tooltip::for_action_in(
 606                                                    expand_label,
 607                                                    &ExpandMessageEditor,
 608                                                    &focus_handle,
 609                                                    window,
 610                                                    cx,
 611                                                )
 612                                            }
 613                                        })
 614                                        .on_click(cx.listener(|_, _, window, cx| {
 615                                            window
 616                                                .dispatch_action(Box::new(ExpandMessageEditor), cx);
 617                                        })),
 618                                )
 619                            }),
 620                    ),
 621            )
 622            .child(
 623                v_flex()
 624                    .size_full()
 625                    .gap_4()
 626                    .when(is_editor_expanded, |this| {
 627                        this.h(vh(0.8, window)).justify_between()
 628                    })
 629                    .child(
 630                        div()
 631                            .min_h_16()
 632                            .when(is_editor_expanded, |this| this.h_full())
 633                            .child({
 634                                let settings = ThemeSettings::get_global(cx);
 635                                let font_size = TextSize::Small
 636                                    .rems(cx)
 637                                    .to_pixels(settings.agent_font_size(cx));
 638                                let line_height = settings.buffer_line_height.value() * font_size;
 639
 640                                let text_style = TextStyle {
 641                                    color: cx.theme().colors().text,
 642                                    font_family: settings.buffer_font.family.clone(),
 643                                    font_fallbacks: settings.buffer_font.fallbacks.clone(),
 644                                    font_features: settings.buffer_font.features.clone(),
 645                                    font_size: font_size.into(),
 646                                    line_height: line_height.into(),
 647                                    ..Default::default()
 648                                };
 649
 650                                EditorElement::new(
 651                                    &self.editor,
 652                                    EditorStyle {
 653                                        background: editor_bg_color,
 654                                        local_player: cx.theme().players().local(),
 655                                        text: text_style,
 656                                        syntax: cx.theme().syntax().clone(),
 657                                        ..Default::default()
 658                                    },
 659                                )
 660                                .into_any()
 661                            }),
 662                    )
 663                    .child(
 664                        h_flex()
 665                            .flex_none()
 666                            .justify_between()
 667                            .child(
 668                                h_flex()
 669                                    .gap_1()
 670                                    .child(self.render_follow_toggle(cx))
 671                                    .children(self.render_max_mode_toggle(cx)),
 672                            )
 673                            .child(
 674                                h_flex()
 675                                    .gap_1()
 676                                    .when(!incompatible_tools.is_empty(), |this| {
 677                                        this.child(
 678                                            IconButton::new(
 679                                                "tools-incompatible-warning",
 680                                                IconName::Warning,
 681                                            )
 682                                            .icon_color(Color::Warning)
 683                                            .icon_size(IconSize::Small)
 684                                            .tooltip({
 685                                                move |_, cx| {
 686                                                    cx.new(|_| IncompatibleToolsTooltip {
 687                                                        incompatible_tools: incompatible_tools
 688                                                            .clone(),
 689                                                    })
 690                                                    .into()
 691                                                }
 692                                            }),
 693                                        )
 694                                    })
 695                                    .child(self.profile_selector.clone())
 696                                    .child(self.model_selector.clone())
 697                                    .map({
 698                                        let focus_handle = focus_handle.clone();
 699                                        move |parent| {
 700                                            if is_generating {
 701                                                parent
 702                                                    .when(is_editor_empty, |parent| {
 703                                                        parent.child(
 704                                                            IconButton::new(
 705                                                                "stop-generation",
 706                                                                IconName::StopFilled,
 707                                                            )
 708                                                            .icon_color(Color::Error)
 709                                                            .style(ButtonStyle::Tinted(
 710                                                                ui::TintColor::Error,
 711                                                            ))
 712                                                            .tooltip(move |window, cx| {
 713                                                                Tooltip::for_action(
 714                                                                    "Stop Generation",
 715                                                                    &editor::actions::Cancel,
 716                                                                    window,
 717                                                                    cx,
 718                                                                )
 719                                                            })
 720                                                            .on_click({
 721                                                                let focus_handle =
 722                                                                    focus_handle.clone();
 723                                                                move |_event, window, cx| {
 724                                                                    focus_handle.dispatch_action(
 725                                                                        &editor::actions::Cancel,
 726                                                                        window,
 727                                                                        cx,
 728                                                                    );
 729                                                                }
 730                                                            })
 731                                                            .with_animation(
 732                                                                "pulsating-label",
 733                                                                Animation::new(
 734                                                                    Duration::from_secs(2),
 735                                                                )
 736                                                                .repeat()
 737                                                                .with_easing(pulsating_between(
 738                                                                    0.4, 1.0,
 739                                                                )),
 740                                                                |icon_button, delta| {
 741                                                                    icon_button.alpha(delta)
 742                                                                },
 743                                                            ),
 744                                                        )
 745                                                    })
 746                                                    .when(!is_editor_empty, |parent| {
 747                                                        parent.child(
 748                                                            IconButton::new(
 749                                                                "send-message",
 750                                                                IconName::Send,
 751                                                            )
 752                                                            .icon_color(Color::Accent)
 753                                                            .style(ButtonStyle::Filled)
 754                                                            .disabled(!is_model_selected)
 755                                                            .on_click({
 756                                                                let focus_handle =
 757                                                                    focus_handle.clone();
 758                                                                move |_event, window, cx| {
 759                                                                    focus_handle.dispatch_action(
 760                                                                        &Chat, window, cx,
 761                                                                    );
 762                                                                }
 763                                                            })
 764                                                            .tooltip(move |window, cx| {
 765                                                                Tooltip::for_action(
 766                                                                    "Stop and Send New Message",
 767                                                                    &Chat,
 768                                                                    window,
 769                                                                    cx,
 770                                                                )
 771                                                            }),
 772                                                        )
 773                                                    })
 774                                            } else {
 775                                                parent.child(
 776                                                    IconButton::new("send-message", IconName::Send)
 777                                                        .icon_color(Color::Accent)
 778                                                        .style(ButtonStyle::Filled)
 779                                                        .disabled(
 780                                                            is_editor_empty || !is_model_selected,
 781                                                        )
 782                                                        .on_click({
 783                                                            let focus_handle = focus_handle.clone();
 784                                                            move |_event, window, cx| {
 785                                                                focus_handle.dispatch_action(
 786                                                                    &Chat, window, cx,
 787                                                                );
 788                                                            }
 789                                                        })
 790                                                        .when(
 791                                                            !is_editor_empty && is_model_selected,
 792                                                            |button| {
 793                                                                button.tooltip(move |window, cx| {
 794                                                                    Tooltip::for_action(
 795                                                                        "Send", &Chat, window, cx,
 796                                                                    )
 797                                                                })
 798                                                            },
 799                                                        )
 800                                                        .when(is_editor_empty, |button| {
 801                                                            button.tooltip(Tooltip::text(
 802                                                                "Type a message to submit",
 803                                                            ))
 804                                                        })
 805                                                        .when(!is_model_selected, |button| {
 806                                                            button.tooltip(Tooltip::text(
 807                                                                "Select a model to continue",
 808                                                            ))
 809                                                        }),
 810                                                )
 811                                            }
 812                                        }
 813                                    }),
 814                            ),
 815                    ),
 816            )
 817    }
 818
 819    fn render_changed_buffers(
 820        &self,
 821        changed_buffers: &BTreeMap<Entity<Buffer>, Entity<BufferDiff>>,
 822        window: &mut Window,
 823        cx: &mut Context<Self>,
 824    ) -> Div {
 825        let focus_handle = self.editor.focus_handle(cx);
 826
 827        let editor_bg_color = cx.theme().colors().editor_background;
 828        let border_color = cx.theme().colors().border;
 829        let active_color = cx.theme().colors().element_selected;
 830        let bg_edit_files_disclosure = editor_bg_color.blend(active_color.opacity(0.3));
 831
 832        let is_edit_changes_expanded = self.edits_expanded;
 833        let is_generating = self.thread.read(cx).is_generating();
 834
 835        v_flex()
 836            .mt_1()
 837            .mx_2()
 838            .bg(bg_edit_files_disclosure)
 839            .border_1()
 840            .border_b_0()
 841            .border_color(border_color)
 842            .rounded_t_md()
 843            .shadow(smallvec::smallvec![gpui::BoxShadow {
 844                color: gpui::black().opacity(0.15),
 845                offset: point(px(1.), px(-1.)),
 846                blur_radius: px(3.),
 847                spread_radius: px(0.),
 848            }])
 849            .child(
 850                h_flex()
 851                    .id("edits-container")
 852                    .cursor_pointer()
 853                    .p_1p5()
 854                    .justify_between()
 855                    .when(is_edit_changes_expanded, |this| {
 856                        this.border_b_1().border_color(border_color)
 857                    })
 858                    .on_click(
 859                        cx.listener(|this, _, window, cx| this.handle_review_click(window, cx)),
 860                    )
 861                    .child(
 862                        h_flex()
 863                            .gap_1()
 864                            .child(
 865                                Disclosure::new("edits-disclosure", is_edit_changes_expanded)
 866                                    .on_click(cx.listener(|this, _ev, _window, cx| {
 867                                        this.edits_expanded = !this.edits_expanded;
 868                                        cx.notify();
 869                                    })),
 870                            )
 871                            .map(|this| {
 872                                if is_generating {
 873                                    this.child(
 874                                        AnimatedLabel::new(format!(
 875                                            "Editing {} {}",
 876                                            changed_buffers.len(),
 877                                            if changed_buffers.len() == 1 {
 878                                                "file"
 879                                            } else {
 880                                                "files"
 881                                            }
 882                                        ))
 883                                        .size(LabelSize::Small),
 884                                    )
 885                                } else {
 886                                    this.child(
 887                                        Label::new("Edits")
 888                                            .size(LabelSize::Small)
 889                                            .color(Color::Muted),
 890                                    )
 891                                    .child(
 892                                        Label::new("").size(LabelSize::XSmall).color(Color::Muted),
 893                                    )
 894                                    .child(
 895                                        Label::new(format!(
 896                                            "{} {}",
 897                                            changed_buffers.len(),
 898                                            if changed_buffers.len() == 1 {
 899                                                "file"
 900                                            } else {
 901                                                "files"
 902                                            }
 903                                        ))
 904                                        .size(LabelSize::Small)
 905                                        .color(Color::Muted),
 906                                    )
 907                                }
 908                            }),
 909                    )
 910                    .child(
 911                        Button::new("review", "Review Changes")
 912                            .label_size(LabelSize::Small)
 913                            .key_binding(
 914                                KeyBinding::for_action_in(
 915                                    &OpenAgentDiff,
 916                                    &focus_handle,
 917                                    window,
 918                                    cx,
 919                                )
 920                                .map(|kb| kb.size(rems_from_px(12.))),
 921                            )
 922                            .on_click(cx.listener(|this, _, window, cx| {
 923                                this.handle_review_click(window, cx)
 924                            })),
 925                    ),
 926            )
 927            .when(is_edit_changes_expanded, |parent| {
 928                parent.child(
 929                    v_flex().children(changed_buffers.into_iter().enumerate().flat_map(
 930                        |(index, (buffer, _diff))| {
 931                            let file = buffer.read(cx).file()?;
 932                            let path = file.path();
 933
 934                            let parent_label = path.parent().and_then(|parent| {
 935                                let parent_str = parent.to_string_lossy();
 936
 937                                if parent_str.is_empty() {
 938                                    None
 939                                } else {
 940                                    Some(
 941                                        Label::new(format!(
 942                                            "/{}{}",
 943                                            parent_str,
 944                                            std::path::MAIN_SEPARATOR_STR
 945                                        ))
 946                                        .color(Color::Muted)
 947                                        .size(LabelSize::XSmall)
 948                                        .buffer_font(cx),
 949                                    )
 950                                }
 951                            });
 952
 953                            let name_label = path.file_name().map(|name| {
 954                                Label::new(name.to_string_lossy().to_string())
 955                                    .size(LabelSize::XSmall)
 956                                    .buffer_font(cx)
 957                            });
 958
 959                            let file_icon = FileIcons::get_icon(&path, cx)
 960                                .map(Icon::from_path)
 961                                .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
 962                                .unwrap_or_else(|| {
 963                                    Icon::new(IconName::File)
 964                                        .color(Color::Muted)
 965                                        .size(IconSize::Small)
 966                                });
 967
 968                            let hover_color = cx
 969                                .theme()
 970                                .colors()
 971                                .element_background
 972                                .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 973
 974                            let overlay_gradient = linear_gradient(
 975                                90.,
 976                                linear_color_stop(editor_bg_color, 1.),
 977                                linear_color_stop(editor_bg_color.opacity(0.2), 0.),
 978                            );
 979
 980                            let overlay_gradient_hover = linear_gradient(
 981                                90.,
 982                                linear_color_stop(hover_color, 1.),
 983                                linear_color_stop(hover_color.opacity(0.2), 0.),
 984                            );
 985
 986                            let element = h_flex()
 987                                .group("edited-code")
 988                                .id(("file-container", index))
 989                                .cursor_pointer()
 990                                .relative()
 991                                .py_1()
 992                                .pl_2()
 993                                .pr_1()
 994                                .gap_2()
 995                                .justify_between()
 996                                .bg(cx.theme().colors().editor_background)
 997                                .hover(|style| style.bg(hover_color))
 998                                .when(index < changed_buffers.len() - 1, |parent| {
 999                                    parent.border_color(border_color).border_b_1()
1000                                })
1001                                .child(
1002                                    h_flex()
1003                                        .id("file-name")
1004                                        .pr_8()
1005                                        .gap_1p5()
1006                                        .max_w_full()
1007                                        .overflow_x_scroll()
1008                                        .child(file_icon)
1009                                        .child(
1010                                            h_flex()
1011                                                .gap_0p5()
1012                                                .children(name_label)
1013                                                .children(parent_label),
1014                                        ), // TODO: Implement line diff
1015                                           // .child(Label::new("+").color(Color::Created))
1016                                           // .child(Label::new("-").color(Color::Deleted)),
1017                                )
1018                                .child(
1019                                    div().visible_on_hover("edited-code").child(
1020                                        Button::new("review", "Review")
1021                                            .label_size(LabelSize::Small)
1022                                            .on_click({
1023                                                let buffer = buffer.clone();
1024                                                cx.listener(move |this, _, window, cx| {
1025                                                    this.handle_file_click(
1026                                                        buffer.clone(),
1027                                                        window,
1028                                                        cx,
1029                                                    );
1030                                                })
1031                                            }),
1032                                    ),
1033                                )
1034                                .child(
1035                                    div()
1036                                        .id("gradient-overlay")
1037                                        .absolute()
1038                                        .h_5_6()
1039                                        .w_12()
1040                                        .bottom_0()
1041                                        .right(px(52.))
1042                                        .bg(overlay_gradient)
1043                                        .group_hover("edited-code", |style| {
1044                                            style.bg(overlay_gradient_hover)
1045                                        }),
1046                                )
1047                                .on_click({
1048                                    let buffer = buffer.clone();
1049                                    cx.listener(move |this, _, window, cx| {
1050                                        this.handle_file_click(buffer.clone(), window, cx);
1051                                    })
1052                                });
1053
1054                            Some(element)
1055                        },
1056                    )),
1057                )
1058            })
1059    }
1060
1061    fn render_usage_callout(&self, line_height: Pixels, cx: &mut Context<Self>) -> Option<Div> {
1062        if !cx.has_flag::<NewBillingFeatureFlag>() {
1063            return None;
1064        }
1065
1066        let user_store = self.user_store.read(cx);
1067
1068        let ubb_enable = user_store
1069            .usage_based_billing_enabled()
1070            .map_or(false, |enabled| enabled);
1071
1072        if ubb_enable {
1073            return None;
1074        }
1075
1076        let plan = user_store
1077            .current_plan()
1078            .map(|plan| match plan {
1079                Plan::Free => zed_llm_client::Plan::Free,
1080                Plan::ZedPro => zed_llm_client::Plan::ZedPro,
1081                Plan::ZedProTrial => zed_llm_client::Plan::ZedProTrial,
1082            })
1083            .unwrap_or(zed_llm_client::Plan::Free);
1084        let usage = self.thread.read(cx).last_usage().or_else(|| {
1085            maybe!({
1086                let amount = user_store.model_request_usage_amount()?;
1087                let limit = user_store.model_request_usage_limit()?.variant?;
1088
1089                Some(RequestUsage {
1090                    amount: amount as i32,
1091                    limit: match limit {
1092                        proto::usage_limit::Variant::Limited(limited) => {
1093                            zed_llm_client::UsageLimit::Limited(limited.limit as i32)
1094                        }
1095                        proto::usage_limit::Variant::Unlimited(_) => {
1096                            zed_llm_client::UsageLimit::Unlimited
1097                        }
1098                    },
1099                })
1100            })
1101        })?;
1102
1103        Some(
1104            div()
1105                .child(UsageCallout::new(plan, usage))
1106                .line_height(line_height),
1107        )
1108    }
1109
1110    fn render_token_limit_callout(
1111        &self,
1112        line_height: Pixels,
1113        token_usage_ratio: TokenUsageRatio,
1114        cx: &mut Context<Self>,
1115    ) -> Option<Div> {
1116        if !cx.has_flag::<NewBillingFeatureFlag>() {
1117            return None;
1118        }
1119
1120        let title = if token_usage_ratio == TokenUsageRatio::Exceeded {
1121            "Thread reached the token limit"
1122        } else {
1123            "Thread reaching the token limit soon"
1124        };
1125
1126        let message = "Start a new thread from a summary to continue the conversation.";
1127
1128        let icon = if token_usage_ratio == TokenUsageRatio::Exceeded {
1129            Icon::new(IconName::X)
1130                .color(Color::Error)
1131                .size(IconSize::XSmall)
1132        } else {
1133            Icon::new(IconName::Warning)
1134                .color(Color::Warning)
1135                .size(IconSize::XSmall)
1136        };
1137
1138        Some(
1139            div()
1140                .child(ui::Callout::multi_line(
1141                    title,
1142                    message,
1143                    icon,
1144                    "Start New Thread",
1145                    Box::new(cx.listener(|this, _, window, cx| {
1146                        let from_thread_id = Some(this.thread.read(cx).id().clone());
1147                        window.dispatch_action(Box::new(NewThread { from_thread_id }), cx);
1148                    })),
1149                ))
1150                .line_height(line_height),
1151        )
1152    }
1153
1154    pub fn last_estimated_token_count(&self) -> Option<usize> {
1155        self.last_estimated_token_count
1156    }
1157
1158    pub fn is_waiting_to_update_token_count(&self) -> bool {
1159        self.update_token_count_task.is_some()
1160    }
1161
1162    fn reload_context(&mut self, cx: &mut Context<Self>) -> Task<Option<ContextLoadResult>> {
1163        let load_task = cx.spawn(async move |this, cx| {
1164            let Ok(load_task) = this.update(cx, |this, cx| {
1165                let new_context = this.context_store.read_with(cx, |context_store, cx| {
1166                    context_store.new_context_for_thread(this.thread.read(cx), None)
1167                });
1168                load_context(new_context, &this.project, &this.prompt_store, cx)
1169            }) else {
1170                return;
1171            };
1172            let result = load_task.await;
1173            this.update(cx, |this, cx| {
1174                this.last_loaded_context = Some(result);
1175                this.load_context_task = None;
1176                this.message_or_context_changed(false, cx);
1177            })
1178            .ok();
1179        });
1180        // Replace existing load task, if any, causing it to be cancelled.
1181        let load_task = load_task.shared();
1182        self.load_context_task = Some(load_task.clone());
1183        cx.spawn(async move |this, cx| {
1184            load_task.await;
1185            this.read_with(cx, |this, _cx| this.last_loaded_context.clone())
1186                .ok()
1187                .flatten()
1188        })
1189    }
1190
1191    fn handle_message_changed(&mut self, cx: &mut Context<Self>) {
1192        self.message_or_context_changed(true, cx);
1193    }
1194
1195    fn message_or_context_changed(&mut self, debounce: bool, cx: &mut Context<Self>) {
1196        cx.emit(MessageEditorEvent::Changed);
1197        self.update_token_count_task.take();
1198
1199        let Some(model) = self.thread.read(cx).configured_model() else {
1200            self.last_estimated_token_count.take();
1201            return;
1202        };
1203
1204        let editor = self.editor.clone();
1205
1206        self.update_token_count_task = Some(cx.spawn(async move |this, cx| {
1207            if debounce {
1208                cx.background_executor()
1209                    .timer(Duration::from_millis(200))
1210                    .await;
1211            }
1212
1213            let token_count = if let Some(task) = this
1214                .update(cx, |this, cx| {
1215                    let loaded_context = this
1216                        .last_loaded_context
1217                        .as_ref()
1218                        .map(|context_load_result| &context_load_result.loaded_context);
1219                    let message_text = editor.read(cx).text(cx);
1220
1221                    if message_text.is_empty()
1222                        && loaded_context.map_or(true, |loaded_context| loaded_context.is_empty())
1223                    {
1224                        return None;
1225                    }
1226
1227                    let mut request_message = LanguageModelRequestMessage {
1228                        role: language_model::Role::User,
1229                        content: Vec::new(),
1230                        cache: false,
1231                    };
1232
1233                    if let Some(loaded_context) = loaded_context {
1234                        loaded_context.add_to_request_message(&mut request_message);
1235                    }
1236
1237                    if !message_text.is_empty() {
1238                        request_message
1239                            .content
1240                            .push(MessageContent::Text(message_text));
1241                    }
1242
1243                    let request = language_model::LanguageModelRequest {
1244                        thread_id: None,
1245                        prompt_id: None,
1246                        mode: None,
1247                        messages: vec![request_message],
1248                        tools: vec![],
1249                        stop: vec![],
1250                        temperature: None,
1251                    };
1252
1253                    Some(model.model.count_tokens(request, cx))
1254                })
1255                .ok()
1256                .flatten()
1257            {
1258                task.await.log_err()
1259            } else {
1260                Some(0)
1261            };
1262
1263            this.update(cx, |this, cx| {
1264                if let Some(token_count) = token_count {
1265                    this.last_estimated_token_count = Some(token_count);
1266                    cx.emit(MessageEditorEvent::EstimatedTokenCount);
1267                }
1268                this.update_token_count_task.take();
1269            })
1270            .ok();
1271        }));
1272    }
1273
1274    pub fn set_dock_position(&mut self, position: DockPosition, cx: &mut Context<Self>) {
1275        self.profile_selector.update(cx, |profile_selector, cx| {
1276            profile_selector.set_documentation_side(documentation_side(position), cx)
1277        });
1278    }
1279}
1280
1281pub fn extract_message_creases(
1282    editor: &mut Editor,
1283    cx: &mut Context<'_, Editor>,
1284) -> Vec<MessageCrease> {
1285    let buffer_snapshot = editor.buffer().read(cx).snapshot(cx);
1286    let mut contexts_by_crease_id = editor
1287        .addon_mut::<ContextCreasesAddon>()
1288        .map(std::mem::take)
1289        .unwrap_or_default()
1290        .into_inner()
1291        .into_iter()
1292        .flat_map(|(key, creases)| {
1293            let context = key.0;
1294            creases
1295                .into_iter()
1296                .map(move |(id, _)| (id, context.clone()))
1297        })
1298        .collect::<HashMap<_, _>>();
1299    // Filter the addon's list of creases based on what the editor reports,
1300    // since the addon might have removed creases in it.
1301    let creases = editor.display_map.update(cx, |display_map, cx| {
1302        display_map
1303            .snapshot(cx)
1304            .crease_snapshot
1305            .creases()
1306            .filter_map(|(id, crease)| {
1307                Some((
1308                    id,
1309                    (
1310                        crease.range().to_offset(&buffer_snapshot),
1311                        crease.metadata()?.clone(),
1312                    ),
1313                ))
1314            })
1315            .map(|(id, (range, metadata))| {
1316                let context = contexts_by_crease_id.remove(&id);
1317                MessageCrease {
1318                    range,
1319                    metadata,
1320                    context,
1321                }
1322            })
1323            .collect()
1324    });
1325    creases
1326}
1327
1328impl EventEmitter<MessageEditorEvent> for MessageEditor {}
1329
1330pub enum MessageEditorEvent {
1331    EstimatedTokenCount,
1332    Changed,
1333}
1334
1335impl Focusable for MessageEditor {
1336    fn focus_handle(&self, cx: &App) -> gpui::FocusHandle {
1337        self.editor.focus_handle(cx)
1338    }
1339}
1340
1341impl Render for MessageEditor {
1342    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1343        let thread = self.thread.read(cx);
1344        let token_usage_ratio = thread
1345            .total_token_usage()
1346            .map_or(TokenUsageRatio::Normal, |total_token_usage| {
1347                total_token_usage.ratio()
1348            });
1349
1350        let action_log = self.thread.read(cx).action_log();
1351        let changed_buffers = action_log.read(cx).changed_buffers(cx);
1352
1353        let line_height = TextSize::Small.rems(cx).to_pixels(window.rem_size()) * 1.5;
1354
1355        v_flex()
1356            .size_full()
1357            .when(changed_buffers.len() > 0, |parent| {
1358                parent.child(self.render_changed_buffers(&changed_buffers, window, cx))
1359            })
1360            .child(self.render_editor(window, cx))
1361            .children({
1362                let usage_callout = self.render_usage_callout(line_height, cx);
1363
1364                if usage_callout.is_some() {
1365                    usage_callout
1366                } else if token_usage_ratio != TokenUsageRatio::Normal {
1367                    self.render_token_limit_callout(line_height, token_usage_ratio, cx)
1368                } else {
1369                    None
1370                }
1371            })
1372    }
1373}
1374
1375pub fn insert_message_creases(
1376    editor: &mut Editor,
1377    message_creases: &[MessageCrease],
1378    context_store: &Entity<ContextStore>,
1379    window: &mut Window,
1380    cx: &mut Context<'_, Editor>,
1381) {
1382    let buffer_snapshot = editor.buffer().read(cx).snapshot(cx);
1383    let creases = message_creases
1384        .iter()
1385        .map(|crease| {
1386            let start = buffer_snapshot.anchor_after(crease.range.start);
1387            let end = buffer_snapshot.anchor_before(crease.range.end);
1388            crease_for_mention(
1389                crease.metadata.label.clone(),
1390                crease.metadata.icon_path.clone(),
1391                start..end,
1392                cx.weak_entity(),
1393            )
1394        })
1395        .collect::<Vec<_>>();
1396    let ids = editor.insert_creases(creases.clone(), cx);
1397    editor.fold_creases(creases, false, window, cx);
1398    if let Some(addon) = editor.addon_mut::<ContextCreasesAddon>() {
1399        for (crease, id) in message_creases.iter().zip(ids) {
1400            if let Some(context) = crease.context.as_ref() {
1401                let key = AgentContextKey(context.clone());
1402                addon.add_creases(
1403                    context_store,
1404                    key,
1405                    vec![(id, crease.metadata.label.clone())],
1406                    cx,
1407                );
1408            }
1409        }
1410    }
1411}
1412impl Component for MessageEditor {
1413    fn scope() -> ComponentScope {
1414        ComponentScope::Agent
1415    }
1416
1417    fn description() -> Option<&'static str> {
1418        Some(
1419            "The composer experience of the Agent Panel. This interface handles context, composing messages, switching profiles, models and more.",
1420        )
1421    }
1422}
1423
1424impl AgentPreview for MessageEditor {
1425    fn agent_preview(
1426        workspace: WeakEntity<Workspace>,
1427        active_thread: Entity<ActiveThread>,
1428        window: &mut Window,
1429        cx: &mut App,
1430    ) -> Option<AnyElement> {
1431        if let Some(workspace) = workspace.upgrade() {
1432            let fs = workspace.read(cx).app_state().fs.clone();
1433            let user_store = workspace.read(cx).app_state().user_store.clone();
1434            let project = workspace.read(cx).project().clone();
1435            let weak_project = project.downgrade();
1436            let context_store = cx.new(|_cx| ContextStore::new(weak_project, None));
1437            let active_thread = active_thread.read(cx);
1438            let thread = active_thread.thread().clone();
1439            let thread_store = active_thread.thread_store().clone();
1440            let text_thread_store = active_thread.text_thread_store().clone();
1441
1442            let default_message_editor = cx.new(|cx| {
1443                MessageEditor::new(
1444                    fs,
1445                    workspace.downgrade(),
1446                    user_store,
1447                    context_store,
1448                    None,
1449                    thread_store.downgrade(),
1450                    text_thread_store.downgrade(),
1451                    thread,
1452                    DockPosition::Left,
1453                    window,
1454                    cx,
1455                )
1456            });
1457
1458            Some(
1459                v_flex()
1460                    .gap_4()
1461                    .children(vec![single_example(
1462                        "Default Message Editor",
1463                        div()
1464                            .w(px(540.))
1465                            .pt_12()
1466                            .bg(cx.theme().colors().panel_background)
1467                            .border_1()
1468                            .border_color(cx.theme().colors().border)
1469                            .child(default_message_editor.clone())
1470                            .into_any_element(),
1471                    )])
1472                    .into_any_element(),
1473            )
1474        } else {
1475            None
1476        }
1477    }
1478}
1479
1480register_agent_preview!(MessageEditor);