context_editor.rs

   1use anyhow::Result;
   2use assistant_settings::AssistantSettings;
   3use assistant_slash_command::{SlashCommand, SlashCommandOutputSection, SlashCommandWorkingSet};
   4use assistant_slash_commands::{
   5    DefaultSlashCommand, DocsSlashCommand, DocsSlashCommandArgs, FileSlashCommand,
   6    selections_creases,
   7};
   8use client::{proto, zed_urls};
   9use collections::{BTreeSet, HashMap, HashSet, hash_map};
  10use editor::{
  11    Anchor, Editor, EditorEvent, MenuInlineCompletionsPolicy, MultiBuffer, MultiBufferSnapshot,
  12    ProposedChangeLocation, ProposedChangesEditor, RowExt, ToOffset as _, ToPoint,
  13    actions::{MoveToEndOfLine, Newline, ShowCompletions},
  14    display_map::{
  15        BlockContext, BlockId, BlockPlacement, BlockProperties, BlockStyle, Crease, CreaseMetadata,
  16        CustomBlockId, FoldId, RenderBlock, ToDisplayPoint,
  17    },
  18    scroll::Autoscroll,
  19};
  20use editor::{FoldPlaceholder, display_map::CreaseId};
  21use feature_flags::{Assistant2FeatureFlag, FeatureFlagAppExt as _};
  22use fs::Fs;
  23use futures::FutureExt;
  24use gpui::{
  25    Animation, AnimationExt, AnyElement, AnyView, App, AsyncWindowContext, ClipboardEntry,
  26    ClipboardItem, CursorStyle, Empty, Entity, EventEmitter, FocusHandle, Focusable, FontWeight,
  27    Global, InteractiveElement, IntoElement, ParentElement, Pixels, Render, RenderImage,
  28    SharedString, Size, StatefulInteractiveElement, Styled, Subscription, Task, Transformation,
  29    WeakEntity, actions, div, img, impl_internal_actions, percentage, point, prelude::*,
  30    pulsating_between, size,
  31};
  32use indexed_docs::IndexedDocsStore;
  33use language::{
  34    BufferSnapshot, LspAdapterDelegate, ToOffset,
  35    language_settings::{SoftWrap, all_language_settings},
  36};
  37use language_model::{
  38    LanguageModelImage, LanguageModelProvider, LanguageModelProviderTosView, LanguageModelRegistry,
  39    Role,
  40};
  41use language_model_selector::{
  42    LanguageModelSelector, LanguageModelSelectorPopoverMenu, ToggleModelSelector,
  43};
  44use multi_buffer::MultiBufferRow;
  45use picker::Picker;
  46use project::lsp_store::LocalLspAdapterDelegate;
  47use project::{Project, Worktree};
  48use rope::Point;
  49use serde::{Deserialize, Serialize};
  50use settings::{Settings, SettingsStore, update_settings_file};
  51use std::{any::TypeId, cmp, ops::Range, path::PathBuf, sync::Arc, time::Duration};
  52use text::SelectionGoal;
  53use ui::{
  54    ButtonLike, Disclosure, ElevationIndex, KeyBinding, PopoverMenuHandle, TintColor, Tooltip,
  55    prelude::*,
  56};
  57use util::{ResultExt, maybe};
  58use workspace::searchable::{Direction, SearchableItemHandle};
  59use workspace::{
  60    Save, Toast, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
  61    item::{self, FollowableItem, Item, ItemHandle},
  62    notifications::NotificationId,
  63    pane::{self, SaveIntent},
  64    searchable::{SearchEvent, SearchableItem},
  65};
  66
  67use crate::{
  68    AssistantContext, AssistantPatch, AssistantPatchStatus, CacheStatus, Content, ContextEvent,
  69    ContextId, InvokedSlashCommandId, InvokedSlashCommandStatus, Message, MessageId,
  70    MessageMetadata, MessageStatus, ParsedSlashCommand, PendingSlashCommandStatus, RequestType,
  71};
  72use crate::{
  73    ThoughtProcessOutputSection, slash_command::SlashCommandCompletionProvider,
  74    slash_command_picker,
  75};
  76
  77actions!(
  78    assistant,
  79    [
  80        Assist,
  81        ConfirmCommand,
  82        CopyCode,
  83        CycleMessageRole,
  84        Edit,
  85        InsertIntoEditor,
  86        QuoteSelection,
  87        Split,
  88    ]
  89);
  90
  91#[derive(PartialEq, Clone)]
  92pub enum InsertDraggedFiles {
  93    ProjectPaths(Vec<PathBuf>),
  94    ExternalFiles(Vec<PathBuf>),
  95}
  96
  97impl_internal_actions!(assistant, [InsertDraggedFiles]);
  98
  99#[derive(Copy, Clone, Debug, PartialEq)]
 100struct ScrollPosition {
 101    offset_before_cursor: gpui::Point<f32>,
 102    cursor: Anchor,
 103}
 104
 105struct PatchViewState {
 106    crease_id: CreaseId,
 107    editor: Option<PatchEditorState>,
 108    update_task: Option<Task<()>>,
 109}
 110
 111struct PatchEditorState {
 112    editor: WeakEntity<ProposedChangesEditor>,
 113    opened_patch: AssistantPatch,
 114}
 115
 116type MessageHeader = MessageMetadata;
 117
 118#[derive(Clone)]
 119enum AssistError {
 120    FileRequired,
 121    PaymentRequired,
 122    MaxMonthlySpendReached,
 123    Message(SharedString),
 124}
 125
 126pub enum ThoughtProcessStatus {
 127    Pending,
 128    Completed,
 129}
 130
 131pub trait AssistantPanelDelegate {
 132    fn active_context_editor(
 133        &self,
 134        workspace: &mut Workspace,
 135        window: &mut Window,
 136        cx: &mut Context<Workspace>,
 137    ) -> Option<Entity<ContextEditor>>;
 138
 139    fn open_saved_context(
 140        &self,
 141        workspace: &mut Workspace,
 142        path: PathBuf,
 143        window: &mut Window,
 144        cx: &mut Context<Workspace>,
 145    ) -> Task<Result<()>>;
 146
 147    fn open_remote_context(
 148        &self,
 149        workspace: &mut Workspace,
 150        context_id: ContextId,
 151        window: &mut Window,
 152        cx: &mut Context<Workspace>,
 153    ) -> Task<Result<Entity<ContextEditor>>>;
 154
 155    fn quote_selection(
 156        &self,
 157        workspace: &mut Workspace,
 158        selection_ranges: Vec<Range<Anchor>>,
 159        buffer: Entity<MultiBuffer>,
 160        window: &mut Window,
 161        cx: &mut Context<Workspace>,
 162    );
 163}
 164
 165impl dyn AssistantPanelDelegate {
 166    /// Returns the global [`AssistantPanelDelegate`], if it exists.
 167    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 168        cx.try_global::<GlobalAssistantPanelDelegate>()
 169            .map(|global| global.0.clone())
 170    }
 171
 172    /// Sets the global [`AssistantPanelDelegate`].
 173    pub fn set_global(delegate: Arc<Self>, cx: &mut App) {
 174        cx.set_global(GlobalAssistantPanelDelegate(delegate));
 175    }
 176}
 177
 178struct GlobalAssistantPanelDelegate(Arc<dyn AssistantPanelDelegate>);
 179
 180impl Global for GlobalAssistantPanelDelegate {}
 181
 182pub struct ContextEditor {
 183    context: Entity<AssistantContext>,
 184    fs: Arc<dyn Fs>,
 185    slash_commands: Arc<SlashCommandWorkingSet>,
 186    workspace: WeakEntity<Workspace>,
 187    project: Entity<Project>,
 188    lsp_adapter_delegate: Option<Arc<dyn LspAdapterDelegate>>,
 189    editor: Entity<Editor>,
 190    pending_thought_process: Option<(CreaseId, language::Anchor)>,
 191    blocks: HashMap<MessageId, (MessageHeader, CustomBlockId)>,
 192    image_blocks: HashSet<CustomBlockId>,
 193    scroll_position: Option<ScrollPosition>,
 194    remote_id: Option<workspace::ViewId>,
 195    pending_slash_command_creases: HashMap<Range<language::Anchor>, CreaseId>,
 196    invoked_slash_command_creases: HashMap<InvokedSlashCommandId, CreaseId>,
 197    _subscriptions: Vec<Subscription>,
 198    patches: HashMap<Range<language::Anchor>, PatchViewState>,
 199    active_patch: Option<Range<language::Anchor>>,
 200    last_error: Option<AssistError>,
 201    show_accept_terms: bool,
 202    pub(crate) slash_menu_handle:
 203        PopoverMenuHandle<Picker<slash_command_picker::SlashCommandDelegate>>,
 204    // dragged_file_worktrees is used to keep references to worktrees that were added
 205    // when the user drag/dropped an external file onto the context editor. Since
 206    // the worktree is not part of the project panel, it would be dropped as soon as
 207    // the file is opened. In order to keep the worktree alive for the duration of the
 208    // context editor, we keep a reference here.
 209    dragged_file_worktrees: Vec<Entity<Worktree>>,
 210    language_model_selector: Entity<LanguageModelSelector>,
 211    language_model_selector_menu_handle: PopoverMenuHandle<LanguageModelSelector>,
 212}
 213
 214pub const DEFAULT_TAB_TITLE: &str = "New Chat";
 215const MAX_TAB_TITLE_LEN: usize = 16;
 216
 217impl ContextEditor {
 218    pub fn for_context(
 219        context: Entity<AssistantContext>,
 220        fs: Arc<dyn Fs>,
 221        workspace: WeakEntity<Workspace>,
 222        project: Entity<Project>,
 223        lsp_adapter_delegate: Option<Arc<dyn LspAdapterDelegate>>,
 224        window: &mut Window,
 225        cx: &mut Context<Self>,
 226    ) -> Self {
 227        let completion_provider = SlashCommandCompletionProvider::new(
 228            context.read(cx).slash_commands().clone(),
 229            Some(cx.entity().downgrade()),
 230            Some(workspace.clone()),
 231        );
 232
 233        let editor = cx.new(|cx| {
 234            let mut editor =
 235                Editor::for_buffer(context.read(cx).buffer().clone(), None, window, cx);
 236            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
 237            editor.set_show_line_numbers(false, cx);
 238            editor.set_show_scrollbars(false, cx);
 239            editor.set_show_git_diff_gutter(false, cx);
 240            editor.set_show_code_actions(false, cx);
 241            editor.set_show_runnables(false, cx);
 242            editor.set_show_breakpoints(false, cx);
 243            editor.set_show_wrap_guides(false, cx);
 244            editor.set_show_indent_guides(false, cx);
 245            editor.set_completion_provider(Some(Box::new(completion_provider)));
 246            editor.set_menu_inline_completions_policy(MenuInlineCompletionsPolicy::Never);
 247            editor.set_collaboration_hub(Box::new(project.clone()));
 248
 249            let show_edit_predictions = all_language_settings(None, cx)
 250                .edit_predictions
 251                .enabled_in_assistant;
 252
 253            editor.set_show_edit_predictions(Some(show_edit_predictions), window, cx);
 254
 255            editor
 256        });
 257
 258        let _subscriptions = vec![
 259            cx.observe(&context, |_, _, cx| cx.notify()),
 260            cx.subscribe_in(&context, window, Self::handle_context_event),
 261            cx.subscribe_in(&editor, window, Self::handle_editor_event),
 262            cx.subscribe_in(&editor, window, Self::handle_editor_search_event),
 263            cx.observe_global_in::<SettingsStore>(window, Self::settings_changed),
 264        ];
 265
 266        let slash_command_sections = context.read(cx).slash_command_output_sections().to_vec();
 267        let thought_process_sections = context.read(cx).thought_process_output_sections().to_vec();
 268        let patch_ranges = context.read(cx).patch_ranges().collect::<Vec<_>>();
 269        let slash_commands = context.read(cx).slash_commands().clone();
 270        let mut this = Self {
 271            context,
 272            slash_commands,
 273            editor,
 274            lsp_adapter_delegate,
 275            blocks: Default::default(),
 276            image_blocks: Default::default(),
 277            scroll_position: None,
 278            remote_id: None,
 279            pending_thought_process: None,
 280            fs: fs.clone(),
 281            workspace,
 282            project,
 283            pending_slash_command_creases: HashMap::default(),
 284            invoked_slash_command_creases: HashMap::default(),
 285            _subscriptions,
 286            patches: HashMap::default(),
 287            active_patch: None,
 288            last_error: None,
 289            show_accept_terms: false,
 290            slash_menu_handle: Default::default(),
 291            dragged_file_worktrees: Vec::new(),
 292            language_model_selector: cx.new(|cx| {
 293                LanguageModelSelector::new(
 294                    |cx| LanguageModelRegistry::read_global(cx).default_model(),
 295                    move |model, cx| {
 296                        update_settings_file::<AssistantSettings>(
 297                            fs.clone(),
 298                            cx,
 299                            move |settings, _| settings.set_model(model.clone()),
 300                        );
 301                    },
 302                    window,
 303                    cx,
 304                )
 305            }),
 306            language_model_selector_menu_handle: PopoverMenuHandle::default(),
 307        };
 308        this.update_message_headers(cx);
 309        this.update_image_blocks(cx);
 310        this.insert_slash_command_output_sections(slash_command_sections, false, window, cx);
 311        this.insert_thought_process_output_sections(
 312            thought_process_sections
 313                .into_iter()
 314                .map(|section| (section, ThoughtProcessStatus::Completed)),
 315            window,
 316            cx,
 317        );
 318        this.patches_updated(&Vec::new(), &patch_ranges, window, cx);
 319        this
 320    }
 321
 322    fn settings_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 323        self.editor.update(cx, |editor, cx| {
 324            let show_edit_predictions = all_language_settings(None, cx)
 325                .edit_predictions
 326                .enabled_in_assistant;
 327
 328            editor.set_show_edit_predictions(Some(show_edit_predictions), window, cx);
 329        });
 330    }
 331
 332    pub fn context(&self) -> &Entity<AssistantContext> {
 333        &self.context
 334    }
 335
 336    pub fn editor(&self) -> &Entity<Editor> {
 337        &self.editor
 338    }
 339
 340    pub fn insert_default_prompt(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 341        let command_name = DefaultSlashCommand.name();
 342        self.editor.update(cx, |editor, cx| {
 343            editor.insert(&format!("/{command_name}\n\n"), window, cx)
 344        });
 345        let command = self.context.update(cx, |context, cx| {
 346            context.reparse(cx);
 347            context.parsed_slash_commands()[0].clone()
 348        });
 349        self.run_command(
 350            command.source_range,
 351            &command.name,
 352            &command.arguments,
 353            false,
 354            self.workspace.clone(),
 355            window,
 356            cx,
 357        );
 358    }
 359
 360    fn assist(&mut self, _: &Assist, window: &mut Window, cx: &mut Context<Self>) {
 361        self.send_to_model(RequestType::Chat, window, cx);
 362    }
 363
 364    fn edit(&mut self, _: &Edit, window: &mut Window, cx: &mut Context<Self>) {
 365        self.send_to_model(RequestType::SuggestEdits, window, cx);
 366    }
 367
 368    fn focus_active_patch(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 369        if let Some((_range, patch)) = self.active_patch() {
 370            if let Some(editor) = patch
 371                .editor
 372                .as_ref()
 373                .and_then(|state| state.editor.upgrade())
 374            {
 375                editor.focus_handle(cx).focus(window);
 376                return true;
 377            }
 378        }
 379
 380        false
 381    }
 382
 383    fn send_to_model(
 384        &mut self,
 385        request_type: RequestType,
 386        window: &mut Window,
 387        cx: &mut Context<Self>,
 388    ) {
 389        let provider = LanguageModelRegistry::read_global(cx)
 390            .default_model()
 391            .map(|default| default.provider);
 392        if provider
 393            .as_ref()
 394            .map_or(false, |provider| provider.must_accept_terms(cx))
 395        {
 396            self.show_accept_terms = true;
 397            cx.notify();
 398            return;
 399        }
 400
 401        if self.focus_active_patch(window, cx) {
 402            return;
 403        }
 404
 405        self.last_error = None;
 406
 407        if request_type == RequestType::SuggestEdits && !self.context.read(cx).contains_files(cx) {
 408            self.last_error = Some(AssistError::FileRequired);
 409            cx.notify();
 410        } else if let Some(user_message) = self
 411            .context
 412            .update(cx, |context, cx| context.assist(request_type, cx))
 413        {
 414            let new_selection = {
 415                let cursor = user_message
 416                    .start
 417                    .to_offset(self.context.read(cx).buffer().read(cx));
 418                cursor..cursor
 419            };
 420            self.editor.update(cx, |editor, cx| {
 421                editor.change_selections(Some(Autoscroll::fit()), window, cx, |selections| {
 422                    selections.select_ranges([new_selection])
 423                });
 424            });
 425            // Avoid scrolling to the new cursor position so the assistant's output is stable.
 426            cx.defer_in(window, |this, _, _| this.scroll_position = None);
 427        }
 428
 429        cx.notify();
 430    }
 431
 432    fn cancel(
 433        &mut self,
 434        _: &editor::actions::Cancel,
 435        _window: &mut Window,
 436        cx: &mut Context<Self>,
 437    ) {
 438        self.last_error = None;
 439
 440        if self
 441            .context
 442            .update(cx, |context, cx| context.cancel_last_assist(cx))
 443        {
 444            return;
 445        }
 446
 447        cx.propagate();
 448    }
 449
 450    fn cycle_message_role(
 451        &mut self,
 452        _: &CycleMessageRole,
 453        _window: &mut Window,
 454        cx: &mut Context<Self>,
 455    ) {
 456        let cursors = self.cursors(cx);
 457        self.context.update(cx, |context, cx| {
 458            let messages = context
 459                .messages_for_offsets(cursors, cx)
 460                .into_iter()
 461                .map(|message| message.id)
 462                .collect();
 463            context.cycle_message_roles(messages, cx)
 464        });
 465    }
 466
 467    fn cursors(&self, cx: &mut App) -> Vec<usize> {
 468        let selections = self
 469            .editor
 470            .update(cx, |editor, cx| editor.selections.all::<usize>(cx));
 471        selections
 472            .into_iter()
 473            .map(|selection| selection.head())
 474            .collect()
 475    }
 476
 477    pub fn insert_command(&mut self, name: &str, window: &mut Window, cx: &mut Context<Self>) {
 478        if let Some(command) = self.slash_commands.command(name, cx) {
 479            self.editor.update(cx, |editor, cx| {
 480                editor.transact(window, cx, |editor, window, cx| {
 481                    editor
 482                        .change_selections(Some(Autoscroll::fit()), window, cx, |s| s.try_cancel());
 483                    let snapshot = editor.buffer().read(cx).snapshot(cx);
 484                    let newest_cursor = editor.selections.newest::<Point>(cx).head();
 485                    if newest_cursor.column > 0
 486                        || snapshot
 487                            .chars_at(newest_cursor)
 488                            .next()
 489                            .map_or(false, |ch| ch != '\n')
 490                    {
 491                        editor.move_to_end_of_line(
 492                            &MoveToEndOfLine {
 493                                stop_at_soft_wraps: false,
 494                            },
 495                            window,
 496                            cx,
 497                        );
 498                        editor.newline(&Newline, window, cx);
 499                    }
 500
 501                    editor.insert(&format!("/{name}"), window, cx);
 502                    if command.accepts_arguments() {
 503                        editor.insert(" ", window, cx);
 504                        editor.show_completions(&ShowCompletions::default(), window, cx);
 505                    }
 506                });
 507            });
 508            if !command.requires_argument() {
 509                self.confirm_command(&ConfirmCommand, window, cx);
 510            }
 511        }
 512    }
 513
 514    pub fn confirm_command(
 515        &mut self,
 516        _: &ConfirmCommand,
 517        window: &mut Window,
 518        cx: &mut Context<Self>,
 519    ) {
 520        if self.editor.read(cx).has_visible_completions_menu() {
 521            return;
 522        }
 523
 524        let selections = self.editor.read(cx).selections.disjoint_anchors();
 525        let mut commands_by_range = HashMap::default();
 526        let workspace = self.workspace.clone();
 527        self.context.update(cx, |context, cx| {
 528            context.reparse(cx);
 529            for selection in selections.iter() {
 530                if let Some(command) =
 531                    context.pending_command_for_position(selection.head().text_anchor, cx)
 532                {
 533                    commands_by_range
 534                        .entry(command.source_range.clone())
 535                        .or_insert_with(|| command.clone());
 536                }
 537            }
 538        });
 539
 540        if commands_by_range.is_empty() {
 541            cx.propagate();
 542        } else {
 543            for command in commands_by_range.into_values() {
 544                self.run_command(
 545                    command.source_range,
 546                    &command.name,
 547                    &command.arguments,
 548                    true,
 549                    workspace.clone(),
 550                    window,
 551                    cx,
 552                );
 553            }
 554            cx.stop_propagation();
 555        }
 556    }
 557
 558    pub fn run_command(
 559        &mut self,
 560        command_range: Range<language::Anchor>,
 561        name: &str,
 562        arguments: &[String],
 563        ensure_trailing_newline: bool,
 564        workspace: WeakEntity<Workspace>,
 565        window: &mut Window,
 566        cx: &mut Context<Self>,
 567    ) {
 568        if let Some(command) = self.slash_commands.command(name, cx) {
 569            let context = self.context.read(cx);
 570            let sections = context
 571                .slash_command_output_sections()
 572                .into_iter()
 573                .filter(|section| section.is_valid(context.buffer().read(cx)))
 574                .cloned()
 575                .collect::<Vec<_>>();
 576            let snapshot = context.buffer().read(cx).snapshot();
 577            let output = command.run(
 578                arguments,
 579                &sections,
 580                snapshot,
 581                workspace,
 582                self.lsp_adapter_delegate.clone(),
 583                window,
 584                cx,
 585            );
 586            self.context.update(cx, |context, cx| {
 587                context.insert_command_output(
 588                    command_range,
 589                    name,
 590                    output,
 591                    ensure_trailing_newline,
 592                    cx,
 593                )
 594            });
 595        }
 596    }
 597
 598    fn handle_context_event(
 599        &mut self,
 600        _: &Entity<AssistantContext>,
 601        event: &ContextEvent,
 602        window: &mut Window,
 603        cx: &mut Context<Self>,
 604    ) {
 605        let context_editor = cx.entity().downgrade();
 606
 607        match event {
 608            ContextEvent::MessagesEdited => {
 609                self.update_message_headers(cx);
 610                self.update_image_blocks(cx);
 611                self.context.update(cx, |context, cx| {
 612                    context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
 613                });
 614            }
 615            ContextEvent::SummaryChanged => {
 616                cx.emit(EditorEvent::TitleChanged);
 617                self.context.update(cx, |context, cx| {
 618                    context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
 619                });
 620            }
 621            ContextEvent::SummaryGenerated => {}
 622            ContextEvent::StartedThoughtProcess(range) => {
 623                let creases = self.insert_thought_process_output_sections(
 624                    [(
 625                        ThoughtProcessOutputSection {
 626                            range: range.clone(),
 627                        },
 628                        ThoughtProcessStatus::Pending,
 629                    )],
 630                    window,
 631                    cx,
 632                );
 633                self.pending_thought_process = Some((creases[0], range.start));
 634            }
 635            ContextEvent::EndedThoughtProcess(end) => {
 636                if let Some((crease_id, start)) = self.pending_thought_process.take() {
 637                    self.editor.update(cx, |editor, cx| {
 638                        let multi_buffer_snapshot = editor.buffer().read(cx).snapshot(cx);
 639                        let (excerpt_id, _, _) = multi_buffer_snapshot.as_singleton().unwrap();
 640                        let start_anchor = multi_buffer_snapshot
 641                            .anchor_in_excerpt(*excerpt_id, start)
 642                            .unwrap();
 643
 644                        editor.display_map.update(cx, |display_map, cx| {
 645                            display_map.unfold_intersecting(
 646                                vec![start_anchor..start_anchor],
 647                                true,
 648                                cx,
 649                            );
 650                        });
 651                        editor.remove_creases(vec![crease_id], cx);
 652                    });
 653                    self.insert_thought_process_output_sections(
 654                        [(
 655                            ThoughtProcessOutputSection { range: start..*end },
 656                            ThoughtProcessStatus::Completed,
 657                        )],
 658                        window,
 659                        cx,
 660                    );
 661                }
 662            }
 663            ContextEvent::StreamedCompletion => {
 664                self.editor.update(cx, |editor, cx| {
 665                    if let Some(scroll_position) = self.scroll_position {
 666                        let snapshot = editor.snapshot(window, cx);
 667                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
 668                        let scroll_top =
 669                            cursor_point.row().as_f32() - scroll_position.offset_before_cursor.y;
 670                        editor.set_scroll_position(
 671                            point(scroll_position.offset_before_cursor.x, scroll_top),
 672                            window,
 673                            cx,
 674                        );
 675                    }
 676                });
 677            }
 678            ContextEvent::PatchesUpdated { removed, updated } => {
 679                self.patches_updated(removed, updated, window, cx);
 680            }
 681            ContextEvent::ParsedSlashCommandsUpdated { removed, updated } => {
 682                self.editor.update(cx, |editor, cx| {
 683                    let buffer = editor.buffer().read(cx).snapshot(cx);
 684                    let (&excerpt_id, _, _) = buffer.as_singleton().unwrap();
 685
 686                    editor.remove_creases(
 687                        removed
 688                            .iter()
 689                            .filter_map(|range| self.pending_slash_command_creases.remove(range)),
 690                        cx,
 691                    );
 692
 693                    let crease_ids = editor.insert_creases(
 694                        updated.iter().map(|command| {
 695                            let workspace = self.workspace.clone();
 696                            let confirm_command = Arc::new({
 697                                let context_editor = context_editor.clone();
 698                                let command = command.clone();
 699                                move |window: &mut Window, cx: &mut App| {
 700                                    context_editor
 701                                        .update(cx, |context_editor, cx| {
 702                                            context_editor.run_command(
 703                                                command.source_range.clone(),
 704                                                &command.name,
 705                                                &command.arguments,
 706                                                false,
 707                                                workspace.clone(),
 708                                                window,
 709                                                cx,
 710                                            );
 711                                        })
 712                                        .ok();
 713                                }
 714                            });
 715                            let placeholder = FoldPlaceholder {
 716                                render: Arc::new(move |_, _, _| Empty.into_any()),
 717                                ..Default::default()
 718                            };
 719                            let render_toggle = {
 720                                let confirm_command = confirm_command.clone();
 721                                let command = command.clone();
 722                                move |row, _, _, _window: &mut Window, _cx: &mut App| {
 723                                    render_pending_slash_command_gutter_decoration(
 724                                        row,
 725                                        &command.status,
 726                                        confirm_command.clone(),
 727                                    )
 728                                }
 729                            };
 730                            let render_trailer = {
 731                                let command = command.clone();
 732                                move |row, _unfold, _window: &mut Window, cx: &mut App| {
 733                                    // TODO: In the future we should investigate how we can expose
 734                                    // this as a hook on the `SlashCommand` trait so that we don't
 735                                    // need to special-case it here.
 736                                    if command.name == DocsSlashCommand::NAME {
 737                                        return render_docs_slash_command_trailer(
 738                                            row,
 739                                            command.clone(),
 740                                            cx,
 741                                        );
 742                                    }
 743
 744                                    Empty.into_any()
 745                                }
 746                            };
 747
 748                            let start = buffer
 749                                .anchor_in_excerpt(excerpt_id, command.source_range.start)
 750                                .unwrap();
 751                            let end = buffer
 752                                .anchor_in_excerpt(excerpt_id, command.source_range.end)
 753                                .unwrap();
 754                            Crease::inline(start..end, placeholder, render_toggle, render_trailer)
 755                        }),
 756                        cx,
 757                    );
 758
 759                    self.pending_slash_command_creases.extend(
 760                        updated
 761                            .iter()
 762                            .map(|command| command.source_range.clone())
 763                            .zip(crease_ids),
 764                    );
 765                })
 766            }
 767            ContextEvent::InvokedSlashCommandChanged { command_id } => {
 768                self.update_invoked_slash_command(*command_id, window, cx);
 769            }
 770            ContextEvent::SlashCommandOutputSectionAdded { section } => {
 771                self.insert_slash_command_output_sections([section.clone()], false, window, cx);
 772            }
 773            ContextEvent::Operation(_) => {}
 774            ContextEvent::ShowAssistError(error_message) => {
 775                self.last_error = Some(AssistError::Message(error_message.clone()));
 776            }
 777            ContextEvent::ShowPaymentRequiredError => {
 778                self.last_error = Some(AssistError::PaymentRequired);
 779            }
 780            ContextEvent::ShowMaxMonthlySpendReachedError => {
 781                self.last_error = Some(AssistError::MaxMonthlySpendReached);
 782            }
 783        }
 784    }
 785
 786    fn update_invoked_slash_command(
 787        &mut self,
 788        command_id: InvokedSlashCommandId,
 789        window: &mut Window,
 790        cx: &mut Context<Self>,
 791    ) {
 792        if let Some(invoked_slash_command) =
 793            self.context.read(cx).invoked_slash_command(&command_id)
 794        {
 795            if let InvokedSlashCommandStatus::Finished = invoked_slash_command.status {
 796                let run_commands_in_ranges = invoked_slash_command
 797                    .run_commands_in_ranges
 798                    .iter()
 799                    .cloned()
 800                    .collect::<Vec<_>>();
 801                for range in run_commands_in_ranges {
 802                    let commands = self.context.update(cx, |context, cx| {
 803                        context.reparse(cx);
 804                        context
 805                            .pending_commands_for_range(range.clone(), cx)
 806                            .to_vec()
 807                    });
 808
 809                    for command in commands {
 810                        self.run_command(
 811                            command.source_range,
 812                            &command.name,
 813                            &command.arguments,
 814                            false,
 815                            self.workspace.clone(),
 816                            window,
 817                            cx,
 818                        );
 819                    }
 820                }
 821            }
 822        }
 823
 824        self.editor.update(cx, |editor, cx| {
 825            if let Some(invoked_slash_command) =
 826                self.context.read(cx).invoked_slash_command(&command_id)
 827            {
 828                if let InvokedSlashCommandStatus::Finished = invoked_slash_command.status {
 829                    let buffer = editor.buffer().read(cx).snapshot(cx);
 830                    let (&excerpt_id, _buffer_id, _buffer_snapshot) =
 831                        buffer.as_singleton().unwrap();
 832
 833                    let start = buffer
 834                        .anchor_in_excerpt(excerpt_id, invoked_slash_command.range.start)
 835                        .unwrap();
 836                    let end = buffer
 837                        .anchor_in_excerpt(excerpt_id, invoked_slash_command.range.end)
 838                        .unwrap();
 839                    editor.remove_folds_with_type(
 840                        &[start..end],
 841                        TypeId::of::<PendingSlashCommand>(),
 842                        false,
 843                        cx,
 844                    );
 845
 846                    editor.remove_creases(
 847                        HashSet::from_iter(self.invoked_slash_command_creases.remove(&command_id)),
 848                        cx,
 849                    );
 850                } else if let hash_map::Entry::Vacant(entry) =
 851                    self.invoked_slash_command_creases.entry(command_id)
 852                {
 853                    let buffer = editor.buffer().read(cx).snapshot(cx);
 854                    let (&excerpt_id, _buffer_id, _buffer_snapshot) =
 855                        buffer.as_singleton().unwrap();
 856                    let context = self.context.downgrade();
 857                    let crease_start = buffer
 858                        .anchor_in_excerpt(excerpt_id, invoked_slash_command.range.start)
 859                        .unwrap();
 860                    let crease_end = buffer
 861                        .anchor_in_excerpt(excerpt_id, invoked_slash_command.range.end)
 862                        .unwrap();
 863                    let crease = Crease::inline(
 864                        crease_start..crease_end,
 865                        invoked_slash_command_fold_placeholder(command_id, context),
 866                        fold_toggle("invoked-slash-command"),
 867                        |_row, _folded, _window, _cx| Empty.into_any(),
 868                    );
 869                    let crease_ids = editor.insert_creases([crease.clone()], cx);
 870                    editor.fold_creases(vec![crease], false, window, cx);
 871                    entry.insert(crease_ids[0]);
 872                } else {
 873                    cx.notify()
 874                }
 875            } else {
 876                editor.remove_creases(
 877                    HashSet::from_iter(self.invoked_slash_command_creases.remove(&command_id)),
 878                    cx,
 879                );
 880                cx.notify();
 881            };
 882        });
 883    }
 884
 885    fn patches_updated(
 886        &mut self,
 887        removed: &Vec<Range<text::Anchor>>,
 888        updated: &Vec<Range<text::Anchor>>,
 889        window: &mut Window,
 890        cx: &mut Context<ContextEditor>,
 891    ) {
 892        let this = cx.entity().downgrade();
 893        let mut editors_to_close = Vec::new();
 894
 895        self.editor.update(cx, |editor, cx| {
 896            let snapshot = editor.snapshot(window, cx);
 897            let multibuffer = &snapshot.buffer_snapshot;
 898            let (&excerpt_id, _, _) = multibuffer.as_singleton().unwrap();
 899
 900            let mut removed_crease_ids = Vec::new();
 901            let mut ranges_to_unfold: Vec<Range<Anchor>> = Vec::new();
 902            for range in removed {
 903                if let Some(state) = self.patches.remove(range) {
 904                    let patch_start = multibuffer
 905                        .anchor_in_excerpt(excerpt_id, range.start)
 906                        .unwrap();
 907                    let patch_end = multibuffer
 908                        .anchor_in_excerpt(excerpt_id, range.end)
 909                        .unwrap();
 910
 911                    editors_to_close.extend(state.editor.and_then(|state| state.editor.upgrade()));
 912                    ranges_to_unfold.push(patch_start..patch_end);
 913                    removed_crease_ids.push(state.crease_id);
 914                }
 915            }
 916            editor.unfold_ranges(&ranges_to_unfold, true, false, cx);
 917            editor.remove_creases(removed_crease_ids, cx);
 918
 919            for range in updated {
 920                let Some(patch) = self.context.read(cx).patch_for_range(&range, cx).cloned() else {
 921                    continue;
 922                };
 923
 924                let path_count = patch.path_count();
 925                let patch_start = multibuffer
 926                    .anchor_in_excerpt(excerpt_id, patch.range.start)
 927                    .unwrap();
 928                let patch_end = multibuffer
 929                    .anchor_in_excerpt(excerpt_id, patch.range.end)
 930                    .unwrap();
 931                let render_block: RenderBlock = Arc::new({
 932                    let this = this.clone();
 933                    let patch_range = range.clone();
 934                    move |cx: &mut BlockContext| {
 935                        let max_width = cx.max_width;
 936                        let gutter_width = cx.gutter_dimensions.full_width();
 937                        let block_id = cx.block_id;
 938                        let selected = cx.selected;
 939                        let window = &mut cx.window;
 940                        this.update(cx.app, |this, cx| {
 941                            this.render_patch_block(
 942                                patch_range.clone(),
 943                                max_width,
 944                                gutter_width,
 945                                block_id,
 946                                selected,
 947                                window,
 948                                cx,
 949                            )
 950                        })
 951                        .ok()
 952                        .flatten()
 953                        .unwrap_or_else(|| Empty.into_any())
 954                    }
 955                });
 956
 957                let height = path_count as u32 + 1;
 958                let crease = Crease::block(
 959                    patch_start..patch_end,
 960                    height,
 961                    BlockStyle::Flex,
 962                    render_block.clone(),
 963                );
 964
 965                let should_refold;
 966                if let Some(state) = self.patches.get_mut(&range) {
 967                    if let Some(editor_state) = &state.editor {
 968                        if editor_state.opened_patch != patch {
 969                            state.update_task = Some({
 970                                let this = this.clone();
 971                                cx.spawn_in(window, async move |_, cx| {
 972                                    Self::update_patch_editor(this.clone(), patch, cx)
 973                                        .await
 974                                        .log_err();
 975                                })
 976                            });
 977                        }
 978                    }
 979
 980                    should_refold =
 981                        snapshot.intersects_fold(patch_start.to_offset(&snapshot.buffer_snapshot));
 982                } else {
 983                    let crease_id = editor.insert_creases([crease.clone()], cx)[0];
 984                    self.patches.insert(
 985                        range.clone(),
 986                        PatchViewState {
 987                            crease_id,
 988                            editor: None,
 989                            update_task: None,
 990                        },
 991                    );
 992
 993                    should_refold = true;
 994                }
 995
 996                if should_refold {
 997                    editor.unfold_ranges(&[patch_start..patch_end], true, false, cx);
 998                    editor.fold_creases(vec![crease], false, window, cx);
 999                }
1000            }
1001        });
1002
1003        for editor in editors_to_close {
1004            self.close_patch_editor(editor, window, cx);
1005        }
1006
1007        self.update_active_patch(window, cx);
1008    }
1009
1010    fn insert_thought_process_output_sections(
1011        &mut self,
1012        sections: impl IntoIterator<
1013            Item = (
1014                ThoughtProcessOutputSection<language::Anchor>,
1015                ThoughtProcessStatus,
1016            ),
1017        >,
1018        window: &mut Window,
1019        cx: &mut Context<Self>,
1020    ) -> Vec<CreaseId> {
1021        self.editor.update(cx, |editor, cx| {
1022            let buffer = editor.buffer().read(cx).snapshot(cx);
1023            let excerpt_id = *buffer.as_singleton().unwrap().0;
1024            let mut buffer_rows_to_fold = BTreeSet::new();
1025            let mut creases = Vec::new();
1026            for (section, status) in sections {
1027                let start = buffer
1028                    .anchor_in_excerpt(excerpt_id, section.range.start)
1029                    .unwrap();
1030                let end = buffer
1031                    .anchor_in_excerpt(excerpt_id, section.range.end)
1032                    .unwrap();
1033                let buffer_row = MultiBufferRow(start.to_point(&buffer).row);
1034                buffer_rows_to_fold.insert(buffer_row);
1035                creases.push(
1036                    Crease::inline(
1037                        start..end,
1038                        FoldPlaceholder {
1039                            render: render_thought_process_fold_icon_button(
1040                                cx.entity().downgrade(),
1041                                status,
1042                            ),
1043                            merge_adjacent: false,
1044                            ..Default::default()
1045                        },
1046                        render_slash_command_output_toggle,
1047                        |_, _, _, _| Empty.into_any_element(),
1048                    )
1049                    .with_metadata(CreaseMetadata {
1050                        icon: IconName::Ai,
1051                        label: "Thinking Process".into(),
1052                    }),
1053                );
1054            }
1055
1056            let creases = editor.insert_creases(creases, cx);
1057
1058            for buffer_row in buffer_rows_to_fold.into_iter().rev() {
1059                editor.fold_at(buffer_row, window, cx);
1060            }
1061
1062            creases
1063        })
1064    }
1065
1066    fn insert_slash_command_output_sections(
1067        &mut self,
1068        sections: impl IntoIterator<Item = SlashCommandOutputSection<language::Anchor>>,
1069        expand_result: bool,
1070        window: &mut Window,
1071        cx: &mut Context<Self>,
1072    ) {
1073        self.editor.update(cx, |editor, cx| {
1074            let buffer = editor.buffer().read(cx).snapshot(cx);
1075            let excerpt_id = *buffer.as_singleton().unwrap().0;
1076            let mut buffer_rows_to_fold = BTreeSet::new();
1077            let mut creases = Vec::new();
1078            for section in sections {
1079                let start = buffer
1080                    .anchor_in_excerpt(excerpt_id, section.range.start)
1081                    .unwrap();
1082                let end = buffer
1083                    .anchor_in_excerpt(excerpt_id, section.range.end)
1084                    .unwrap();
1085                let buffer_row = MultiBufferRow(start.to_point(&buffer).row);
1086                buffer_rows_to_fold.insert(buffer_row);
1087                creases.push(
1088                    Crease::inline(
1089                        start..end,
1090                        FoldPlaceholder {
1091                            render: render_fold_icon_button(
1092                                cx.entity().downgrade(),
1093                                section.icon,
1094                                section.label.clone(),
1095                            ),
1096                            merge_adjacent: false,
1097                            ..Default::default()
1098                        },
1099                        render_slash_command_output_toggle,
1100                        |_, _, _, _| Empty.into_any_element(),
1101                    )
1102                    .with_metadata(CreaseMetadata {
1103                        icon: section.icon,
1104                        label: section.label,
1105                    }),
1106                );
1107            }
1108
1109            editor.insert_creases(creases, cx);
1110
1111            if expand_result {
1112                buffer_rows_to_fold.clear();
1113            }
1114            for buffer_row in buffer_rows_to_fold.into_iter().rev() {
1115                editor.fold_at(buffer_row, window, cx);
1116            }
1117        });
1118    }
1119
1120    fn handle_editor_event(
1121        &mut self,
1122        _: &Entity<Editor>,
1123        event: &EditorEvent,
1124        window: &mut Window,
1125        cx: &mut Context<Self>,
1126    ) {
1127        match event {
1128            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
1129                let cursor_scroll_position = self.cursor_scroll_position(window, cx);
1130                if *autoscroll {
1131                    self.scroll_position = cursor_scroll_position;
1132                } else if self.scroll_position != cursor_scroll_position {
1133                    self.scroll_position = None;
1134                }
1135            }
1136            EditorEvent::SelectionsChanged { .. } => {
1137                self.scroll_position = self.cursor_scroll_position(window, cx);
1138                self.update_active_patch(window, cx);
1139            }
1140            _ => {}
1141        }
1142        cx.emit(event.clone());
1143    }
1144
1145    fn active_patch(&self) -> Option<(Range<text::Anchor>, &PatchViewState)> {
1146        let patch = self.active_patch.as_ref()?;
1147        Some((patch.clone(), self.patches.get(&patch)?))
1148    }
1149
1150    fn update_active_patch(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1151        let newest_cursor = self.editor.update(cx, |editor, cx| {
1152            editor.selections.newest::<Point>(cx).head()
1153        });
1154        let context = self.context.read(cx);
1155
1156        let new_patch = context.patch_containing(newest_cursor, cx).cloned();
1157
1158        if new_patch.as_ref().map(|p| &p.range) == self.active_patch.as_ref() {
1159            return;
1160        }
1161
1162        if let Some(old_patch_range) = self.active_patch.take() {
1163            if let Some(patch_state) = self.patches.get_mut(&old_patch_range) {
1164                if let Some(state) = patch_state.editor.take() {
1165                    if let Some(editor) = state.editor.upgrade() {
1166                        self.close_patch_editor(editor, window, cx);
1167                    }
1168                }
1169            }
1170        }
1171
1172        if let Some(new_patch) = new_patch {
1173            self.active_patch = Some(new_patch.range.clone());
1174
1175            if let Some(patch_state) = self.patches.get_mut(&new_patch.range) {
1176                let mut editor = None;
1177                if let Some(state) = &patch_state.editor {
1178                    if let Some(opened_editor) = state.editor.upgrade() {
1179                        editor = Some(opened_editor);
1180                    }
1181                }
1182
1183                if let Some(editor) = editor {
1184                    self.workspace
1185                        .update(cx, |workspace, cx| {
1186                            workspace.activate_item(&editor, true, false, window, cx);
1187                        })
1188                        .ok();
1189                } else {
1190                    patch_state.update_task = Some(cx.spawn_in(window, async move |this, cx| {
1191                        Self::open_patch_editor(this, new_patch, cx).await.log_err();
1192                    }));
1193                }
1194            }
1195        }
1196    }
1197
1198    fn close_patch_editor(
1199        &mut self,
1200        editor: Entity<ProposedChangesEditor>,
1201        window: &mut Window,
1202        cx: &mut Context<ContextEditor>,
1203    ) {
1204        self.workspace
1205            .update(cx, |workspace, cx| {
1206                if let Some(pane) = workspace.pane_for(&editor) {
1207                    pane.update(cx, |pane, cx| {
1208                        let item_id = editor.entity_id();
1209                        if !editor.read(cx).focus_handle(cx).is_focused(window) {
1210                            pane.close_item_by_id(item_id, SaveIntent::Skip, window, cx)
1211                                .detach_and_log_err(cx);
1212                        }
1213                    });
1214                }
1215            })
1216            .ok();
1217    }
1218
1219    async fn open_patch_editor(
1220        this: WeakEntity<Self>,
1221        patch: AssistantPatch,
1222        cx: &mut AsyncWindowContext,
1223    ) -> Result<()> {
1224        let project = this.read_with(cx, |this, _| this.project.clone())?;
1225        let resolved_patch = patch.resolve(project.clone(), cx).await;
1226
1227        let editor = cx.new_window_entity(|window, cx| {
1228            let editor = ProposedChangesEditor::new(
1229                patch.title.clone(),
1230                resolved_patch
1231                    .edit_groups
1232                    .iter()
1233                    .map(|(buffer, groups)| ProposedChangeLocation {
1234                        buffer: buffer.clone(),
1235                        ranges: groups
1236                            .iter()
1237                            .map(|group| group.context_range.clone())
1238                            .collect(),
1239                    })
1240                    .collect(),
1241                Some(project.clone()),
1242                window,
1243                cx,
1244            );
1245            resolved_patch.apply(&editor, cx);
1246            editor
1247        })?;
1248
1249        this.update(cx, |this, _| {
1250            if let Some(patch_state) = this.patches.get_mut(&patch.range) {
1251                patch_state.editor = Some(PatchEditorState {
1252                    editor: editor.downgrade(),
1253                    opened_patch: patch,
1254                });
1255                patch_state.update_task.take();
1256            }
1257        })?;
1258        this.read_with(cx, |this, _| this.workspace.clone())?
1259            .update_in(cx, |workspace, window, cx| {
1260                workspace.add_item_to_active_pane(Box::new(editor.clone()), None, false, window, cx)
1261            })
1262            .log_err();
1263
1264        Ok(())
1265    }
1266
1267    async fn update_patch_editor(
1268        this: WeakEntity<Self>,
1269        patch: AssistantPatch,
1270        cx: &mut AsyncWindowContext,
1271    ) -> Result<()> {
1272        let project = this.update(cx, |this, _| this.project.clone())?;
1273        let resolved_patch = patch.resolve(project.clone(), cx).await;
1274        this.update_in(cx, |this, window, cx| {
1275            let patch_state = this.patches.get_mut(&patch.range)?;
1276
1277            let locations = resolved_patch
1278                .edit_groups
1279                .iter()
1280                .map(|(buffer, groups)| ProposedChangeLocation {
1281                    buffer: buffer.clone(),
1282                    ranges: groups
1283                        .iter()
1284                        .map(|group| group.context_range.clone())
1285                        .collect(),
1286                })
1287                .collect();
1288
1289            if let Some(state) = &mut patch_state.editor {
1290                if let Some(editor) = state.editor.upgrade() {
1291                    editor.update(cx, |editor, cx| {
1292                        editor.set_title(patch.title.clone(), cx);
1293                        editor.reset_locations(locations, window, cx);
1294                        resolved_patch.apply(editor, cx);
1295                    });
1296
1297                    state.opened_patch = patch;
1298                } else {
1299                    patch_state.editor.take();
1300                }
1301            }
1302            patch_state.update_task.take();
1303
1304            Some(())
1305        })?;
1306        Ok(())
1307    }
1308
1309    fn handle_editor_search_event(
1310        &mut self,
1311        _: &Entity<Editor>,
1312        event: &SearchEvent,
1313        _window: &mut Window,
1314        cx: &mut Context<Self>,
1315    ) {
1316        cx.emit(event.clone());
1317    }
1318
1319    fn cursor_scroll_position(
1320        &self,
1321        window: &mut Window,
1322        cx: &mut Context<Self>,
1323    ) -> Option<ScrollPosition> {
1324        self.editor.update(cx, |editor, cx| {
1325            let snapshot = editor.snapshot(window, cx);
1326            let cursor = editor.selections.newest_anchor().head();
1327            let cursor_row = cursor
1328                .to_display_point(&snapshot.display_snapshot)
1329                .row()
1330                .as_f32();
1331            let scroll_position = editor
1332                .scroll_manager
1333                .anchor()
1334                .scroll_position(&snapshot.display_snapshot);
1335
1336            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
1337            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
1338                Some(ScrollPosition {
1339                    cursor,
1340                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
1341                })
1342            } else {
1343                None
1344            }
1345        })
1346    }
1347
1348    fn esc_kbd(cx: &App) -> Div {
1349        let colors = cx.theme().colors().clone();
1350
1351        h_flex()
1352            .items_center()
1353            .gap_1()
1354            .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
1355            .text_size(TextSize::XSmall.rems(cx))
1356            .text_color(colors.text_muted)
1357            .child("Press")
1358            .child(
1359                h_flex()
1360                    .rounded_sm()
1361                    .px_1()
1362                    .mr_0p5()
1363                    .border_1()
1364                    .border_color(colors.border_variant.alpha(0.6))
1365                    .bg(colors.element_background.alpha(0.6))
1366                    .child("esc"),
1367            )
1368            .child("to cancel")
1369    }
1370
1371    fn update_message_headers(&mut self, cx: &mut Context<Self>) {
1372        self.editor.update(cx, |editor, cx| {
1373            let buffer = editor.buffer().read(cx).snapshot(cx);
1374
1375            let excerpt_id = *buffer.as_singleton().unwrap().0;
1376            let mut old_blocks = std::mem::take(&mut self.blocks);
1377            let mut blocks_to_remove: HashMap<_, _> = old_blocks
1378                .iter()
1379                .map(|(message_id, (_, block_id))| (*message_id, *block_id))
1380                .collect();
1381            let mut blocks_to_replace: HashMap<_, RenderBlock> = Default::default();
1382
1383            let render_block = |message: MessageMetadata| -> RenderBlock {
1384                Arc::new({
1385                    let context = self.context.clone();
1386
1387                    move |cx| {
1388                        let message_id = MessageId(message.timestamp);
1389                        let llm_loading = message.role == Role::Assistant
1390                            && message.status == MessageStatus::Pending;
1391
1392                        let (label, spinner, note) = match message.role {
1393                            Role::User => (
1394                                Label::new("You").color(Color::Default).into_any_element(),
1395                                None,
1396                                None,
1397                            ),
1398                            Role::Assistant => {
1399                                let base_label = Label::new("Assistant").color(Color::Info);
1400                                let mut spinner = None;
1401                                let mut note = None;
1402                                let animated_label = if llm_loading {
1403                                    base_label
1404                                        .with_animation(
1405                                            "pulsating-label",
1406                                            Animation::new(Duration::from_secs(2))
1407                                                .repeat()
1408                                                .with_easing(pulsating_between(0.4, 0.8)),
1409                                            |label, delta| label.alpha(delta),
1410                                        )
1411                                        .into_any_element()
1412                                } else {
1413                                    base_label.into_any_element()
1414                                };
1415                                if llm_loading {
1416                                    spinner = Some(
1417                                        Icon::new(IconName::ArrowCircle)
1418                                            .size(IconSize::XSmall)
1419                                            .color(Color::Info)
1420                                            .with_animation(
1421                                                "arrow-circle",
1422                                                Animation::new(Duration::from_secs(2)).repeat(),
1423                                                |icon, delta| {
1424                                                    icon.transform(Transformation::rotate(
1425                                                        percentage(delta),
1426                                                    ))
1427                                                },
1428                                            )
1429                                            .into_any_element(),
1430                                    );
1431                                    note = Some(Self::esc_kbd(cx).into_any_element());
1432                                }
1433                                (animated_label, spinner, note)
1434                            }
1435                            Role::System => (
1436                                Label::new("System")
1437                                    .color(Color::Warning)
1438                                    .into_any_element(),
1439                                None,
1440                                None,
1441                            ),
1442                        };
1443
1444                        let sender = h_flex()
1445                            .items_center()
1446                            .gap_2p5()
1447                            .child(
1448                                ButtonLike::new("role")
1449                                    .style(ButtonStyle::Filled)
1450                                    .child(
1451                                        h_flex()
1452                                            .items_center()
1453                                            .gap_1p5()
1454                                            .child(label)
1455                                            .children(spinner),
1456                                    )
1457                                    .tooltip(|window, cx| {
1458                                        Tooltip::with_meta(
1459                                            "Toggle message role",
1460                                            None,
1461                                            "Available roles: You (User), Assistant, System",
1462                                            window,
1463                                            cx,
1464                                        )
1465                                    })
1466                                    .on_click({
1467                                        let context = context.clone();
1468                                        move |_, _window, cx| {
1469                                            context.update(cx, |context, cx| {
1470                                                context.cycle_message_roles(
1471                                                    HashSet::from_iter(Some(message_id)),
1472                                                    cx,
1473                                                )
1474                                            })
1475                                        }
1476                                    }),
1477                            )
1478                            .children(note);
1479
1480                        h_flex()
1481                            .id(("message_header", message_id.as_u64()))
1482                            .pl(cx.gutter_dimensions.full_width())
1483                            .h_11()
1484                            .w_full()
1485                            .relative()
1486                            .gap_1p5()
1487                            .child(sender)
1488                            .children(match &message.cache {
1489                                Some(cache) if cache.is_final_anchor => match cache.status {
1490                                    CacheStatus::Cached => Some(
1491                                        div()
1492                                            .id("cached")
1493                                            .child(
1494                                                Icon::new(IconName::DatabaseZap)
1495                                                    .size(IconSize::XSmall)
1496                                                    .color(Color::Hint),
1497                                            )
1498                                            .tooltip(|window, cx| {
1499                                                Tooltip::with_meta(
1500                                                    "Context Cached",
1501                                                    None,
1502                                                    "Large messages cached to optimize performance",
1503                                                    window,
1504                                                    cx,
1505                                                )
1506                                            })
1507                                            .into_any_element(),
1508                                    ),
1509                                    CacheStatus::Pending => Some(
1510                                        div()
1511                                            .child(
1512                                                Icon::new(IconName::Ellipsis)
1513                                                    .size(IconSize::XSmall)
1514                                                    .color(Color::Hint),
1515                                            )
1516                                            .into_any_element(),
1517                                    ),
1518                                },
1519                                _ => None,
1520                            })
1521                            .children(match &message.status {
1522                                MessageStatus::Error(error) => Some(
1523                                    Button::new("show-error", "Error")
1524                                        .color(Color::Error)
1525                                        .selected_label_color(Color::Error)
1526                                        .selected_icon_color(Color::Error)
1527                                        .icon(IconName::XCircle)
1528                                        .icon_color(Color::Error)
1529                                        .icon_size(IconSize::XSmall)
1530                                        .icon_position(IconPosition::Start)
1531                                        .tooltip(Tooltip::text("View Details"))
1532                                        .on_click({
1533                                            let context = context.clone();
1534                                            let error = error.clone();
1535                                            move |_, _window, cx| {
1536                                                context.update(cx, |_, cx| {
1537                                                    cx.emit(ContextEvent::ShowAssistError(
1538                                                        error.clone(),
1539                                                    ));
1540                                                });
1541                                            }
1542                                        })
1543                                        .into_any_element(),
1544                                ),
1545                                MessageStatus::Canceled => Some(
1546                                    h_flex()
1547                                        .gap_1()
1548                                        .items_center()
1549                                        .child(
1550                                            Icon::new(IconName::XCircle)
1551                                                .color(Color::Disabled)
1552                                                .size(IconSize::XSmall),
1553                                        )
1554                                        .child(
1555                                            Label::new("Canceled")
1556                                                .size(LabelSize::Small)
1557                                                .color(Color::Disabled),
1558                                        )
1559                                        .into_any_element(),
1560                                ),
1561                                _ => None,
1562                            })
1563                            .into_any_element()
1564                    }
1565                })
1566            };
1567            let create_block_properties = |message: &Message| BlockProperties {
1568                height: Some(2),
1569                style: BlockStyle::Sticky,
1570                placement: BlockPlacement::Above(
1571                    buffer
1572                        .anchor_in_excerpt(excerpt_id, message.anchor_range.start)
1573                        .unwrap(),
1574                ),
1575                priority: usize::MAX,
1576                render: render_block(MessageMetadata::from(message)),
1577            };
1578            let mut new_blocks = vec![];
1579            let mut block_index_to_message = vec![];
1580            for message in self.context.read(cx).messages(cx) {
1581                if let Some(_) = blocks_to_remove.remove(&message.id) {
1582                    // This is an old message that we might modify.
1583                    let Some((meta, block_id)) = old_blocks.get_mut(&message.id) else {
1584                        debug_assert!(
1585                            false,
1586                            "old_blocks should contain a message_id we've just removed."
1587                        );
1588                        continue;
1589                    };
1590                    // Should we modify it?
1591                    let message_meta = MessageMetadata::from(&message);
1592                    if meta != &message_meta {
1593                        blocks_to_replace.insert(*block_id, render_block(message_meta.clone()));
1594                        *meta = message_meta;
1595                    }
1596                } else {
1597                    // This is a new message.
1598                    new_blocks.push(create_block_properties(&message));
1599                    block_index_to_message.push((message.id, MessageMetadata::from(&message)));
1600                }
1601            }
1602            editor.replace_blocks(blocks_to_replace, None, cx);
1603            editor.remove_blocks(blocks_to_remove.into_values().collect(), None, cx);
1604
1605            let ids = editor.insert_blocks(new_blocks, None, cx);
1606            old_blocks.extend(ids.into_iter().zip(block_index_to_message).map(
1607                |(block_id, (message_id, message_meta))| (message_id, (message_meta, block_id)),
1608            ));
1609            self.blocks = old_blocks;
1610        });
1611    }
1612
1613    /// Returns either the selected text, or the content of the Markdown code
1614    /// block surrounding the cursor.
1615    fn get_selection_or_code_block(
1616        context_editor_view: &Entity<ContextEditor>,
1617        cx: &mut Context<Workspace>,
1618    ) -> Option<(String, bool)> {
1619        const CODE_FENCE_DELIMITER: &'static str = "```";
1620
1621        let context_editor = context_editor_view.read(cx).editor.clone();
1622        context_editor.update(cx, |context_editor, cx| {
1623            if context_editor.selections.newest::<Point>(cx).is_empty() {
1624                let snapshot = context_editor.buffer().read(cx).snapshot(cx);
1625                let (_, _, snapshot) = snapshot.as_singleton()?;
1626
1627                let head = context_editor.selections.newest::<Point>(cx).head();
1628                let offset = snapshot.point_to_offset(head);
1629
1630                let surrounding_code_block_range = find_surrounding_code_block(snapshot, offset)?;
1631                let mut text = snapshot
1632                    .text_for_range(surrounding_code_block_range)
1633                    .collect::<String>();
1634
1635                // If there is no newline trailing the closing three-backticks, then
1636                // tree-sitter-md extends the range of the content node to include
1637                // the backticks.
1638                if text.ends_with(CODE_FENCE_DELIMITER) {
1639                    text.drain((text.len() - CODE_FENCE_DELIMITER.len())..);
1640                }
1641
1642                (!text.is_empty()).then_some((text, true))
1643            } else {
1644                let selection = context_editor.selections.newest_adjusted(cx);
1645                let buffer = context_editor.buffer().read(cx).snapshot(cx);
1646                let selected_text = buffer.text_for_range(selection.range()).collect::<String>();
1647
1648                (!selected_text.is_empty()).then_some((selected_text, false))
1649            }
1650        })
1651    }
1652
1653    pub fn insert_selection(
1654        workspace: &mut Workspace,
1655        _: &InsertIntoEditor,
1656        window: &mut Window,
1657        cx: &mut Context<Workspace>,
1658    ) {
1659        let Some(assistant_panel_delegate) = <dyn AssistantPanelDelegate>::try_global(cx) else {
1660            return;
1661        };
1662        let Some(context_editor_view) =
1663            assistant_panel_delegate.active_context_editor(workspace, window, cx)
1664        else {
1665            return;
1666        };
1667        let Some(active_editor_view) = workspace
1668            .active_item(cx)
1669            .and_then(|item| item.act_as::<Editor>(cx))
1670        else {
1671            return;
1672        };
1673
1674        if let Some((text, _)) = Self::get_selection_or_code_block(&context_editor_view, cx) {
1675            active_editor_view.update(cx, |editor, cx| {
1676                editor.insert(&text, window, cx);
1677                editor.focus_handle(cx).focus(window);
1678            })
1679        }
1680    }
1681
1682    pub fn copy_code(
1683        workspace: &mut Workspace,
1684        _: &CopyCode,
1685        window: &mut Window,
1686        cx: &mut Context<Workspace>,
1687    ) {
1688        let result = maybe!({
1689            let assistant_panel_delegate = <dyn AssistantPanelDelegate>::try_global(cx)?;
1690            let context_editor_view =
1691                assistant_panel_delegate.active_context_editor(workspace, window, cx)?;
1692            Self::get_selection_or_code_block(&context_editor_view, cx)
1693        });
1694        let Some((text, is_code_block)) = result else {
1695            return;
1696        };
1697
1698        cx.write_to_clipboard(ClipboardItem::new_string(text));
1699
1700        struct CopyToClipboardToast;
1701        workspace.show_toast(
1702            Toast::new(
1703                NotificationId::unique::<CopyToClipboardToast>(),
1704                format!(
1705                    "{} copied to clipboard.",
1706                    if is_code_block {
1707                        "Code block"
1708                    } else {
1709                        "Selection"
1710                    }
1711                ),
1712            )
1713            .autohide(),
1714            cx,
1715        );
1716    }
1717
1718    pub fn insert_dragged_files(
1719        workspace: &mut Workspace,
1720        action: &InsertDraggedFiles,
1721        window: &mut Window,
1722        cx: &mut Context<Workspace>,
1723    ) {
1724        let Some(assistant_panel_delegate) = <dyn AssistantPanelDelegate>::try_global(cx) else {
1725            return;
1726        };
1727        let Some(context_editor_view) =
1728            assistant_panel_delegate.active_context_editor(workspace, window, cx)
1729        else {
1730            return;
1731        };
1732
1733        let project = workspace.project().clone();
1734
1735        let paths = match action {
1736            InsertDraggedFiles::ProjectPaths(paths) => Task::ready((paths.clone(), vec![])),
1737            InsertDraggedFiles::ExternalFiles(paths) => {
1738                let tasks = paths
1739                    .clone()
1740                    .into_iter()
1741                    .map(|path| Workspace::project_path_for_path(project.clone(), &path, false, cx))
1742                    .collect::<Vec<_>>();
1743
1744                cx.spawn(async move |_, cx| {
1745                    let mut paths = vec![];
1746                    let mut worktrees = vec![];
1747
1748                    let opened_paths = futures::future::join_all(tasks).await;
1749                    for (worktree, project_path) in opened_paths.into_iter().flatten() {
1750                        let Ok(worktree_root_name) =
1751                            worktree.read_with(cx, |worktree, _| worktree.root_name().to_string())
1752                        else {
1753                            continue;
1754                        };
1755
1756                        let mut full_path = PathBuf::from(worktree_root_name.clone());
1757                        full_path.push(&project_path.path);
1758                        paths.push(full_path);
1759                        worktrees.push(worktree);
1760                    }
1761
1762                    (paths, worktrees)
1763                })
1764            }
1765        };
1766
1767        window
1768            .spawn(cx, async move |cx| {
1769                let (paths, dragged_file_worktrees) = paths.await;
1770                let cmd_name = FileSlashCommand.name();
1771
1772                context_editor_view
1773                    .update_in(cx, |context_editor, window, cx| {
1774                        let file_argument = paths
1775                            .into_iter()
1776                            .map(|path| path.to_string_lossy().to_string())
1777                            .collect::<Vec<_>>()
1778                            .join(" ");
1779
1780                        context_editor.editor.update(cx, |editor, cx| {
1781                            editor.insert("\n", window, cx);
1782                            editor.insert(&format!("/{} {}", cmd_name, file_argument), window, cx);
1783                        });
1784
1785                        context_editor.confirm_command(&ConfirmCommand, window, cx);
1786
1787                        context_editor
1788                            .dragged_file_worktrees
1789                            .extend(dragged_file_worktrees);
1790                    })
1791                    .log_err();
1792            })
1793            .detach();
1794    }
1795
1796    pub fn quote_selection(
1797        workspace: &mut Workspace,
1798        _: &QuoteSelection,
1799        window: &mut Window,
1800        cx: &mut Context<Workspace>,
1801    ) {
1802        let Some(assistant_panel_delegate) = <dyn AssistantPanelDelegate>::try_global(cx) else {
1803            return;
1804        };
1805
1806        let Some((selections, buffer)) = maybe!({
1807            let editor = workspace
1808                .active_item(cx)
1809                .and_then(|item| item.act_as::<Editor>(cx))?;
1810
1811            let buffer = editor.read(cx).buffer().clone();
1812            let snapshot = buffer.read(cx).snapshot(cx);
1813            let selections = editor.update(cx, |editor, cx| {
1814                editor
1815                    .selections
1816                    .all_adjusted(cx)
1817                    .into_iter()
1818                    .filter_map(|s| {
1819                        (!s.is_empty())
1820                            .then(|| snapshot.anchor_after(s.start)..snapshot.anchor_before(s.end))
1821                    })
1822                    .collect::<Vec<_>>()
1823            });
1824            Some((selections, buffer))
1825        }) else {
1826            return;
1827        };
1828
1829        if selections.is_empty() {
1830            return;
1831        }
1832
1833        assistant_panel_delegate.quote_selection(workspace, selections, buffer, window, cx);
1834    }
1835
1836    pub fn quote_ranges(
1837        &mut self,
1838        ranges: Vec<Range<Point>>,
1839        snapshot: MultiBufferSnapshot,
1840        window: &mut Window,
1841        cx: &mut Context<Self>,
1842    ) {
1843        let creases = selections_creases(ranges, snapshot, cx);
1844
1845        self.editor.update(cx, |editor, cx| {
1846            editor.insert("\n", window, cx);
1847            for (text, crease_title) in creases {
1848                let point = editor.selections.newest::<Point>(cx).head();
1849                let start_row = MultiBufferRow(point.row);
1850
1851                editor.insert(&text, window, cx);
1852
1853                let snapshot = editor.buffer().read(cx).snapshot(cx);
1854                let anchor_before = snapshot.anchor_after(point);
1855                let anchor_after = editor
1856                    .selections
1857                    .newest_anchor()
1858                    .head()
1859                    .bias_left(&snapshot);
1860
1861                editor.insert("\n", window, cx);
1862
1863                let fold_placeholder =
1864                    quote_selection_fold_placeholder(crease_title, cx.entity().downgrade());
1865                let crease = Crease::inline(
1866                    anchor_before..anchor_after,
1867                    fold_placeholder,
1868                    render_quote_selection_output_toggle,
1869                    |_, _, _, _| Empty.into_any(),
1870                );
1871                editor.insert_creases(vec![crease], cx);
1872                editor.fold_at(start_row, window, cx);
1873            }
1874        })
1875    }
1876
1877    fn copy(&mut self, _: &editor::actions::Copy, _window: &mut Window, cx: &mut Context<Self>) {
1878        if self.editor.read(cx).selections.count() == 1 {
1879            let (copied_text, metadata, _) = self.get_clipboard_contents(cx);
1880            cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
1881                copied_text,
1882                metadata,
1883            ));
1884            cx.stop_propagation();
1885            return;
1886        }
1887
1888        cx.propagate();
1889    }
1890
1891    fn cut(&mut self, _: &editor::actions::Cut, window: &mut Window, cx: &mut Context<Self>) {
1892        if self.editor.read(cx).selections.count() == 1 {
1893            let (copied_text, metadata, selections) = self.get_clipboard_contents(cx);
1894
1895            self.editor.update(cx, |editor, cx| {
1896                editor.transact(window, cx, |this, window, cx| {
1897                    this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
1898                        s.select(selections);
1899                    });
1900                    this.insert("", window, cx);
1901                    cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
1902                        copied_text,
1903                        metadata,
1904                    ));
1905                });
1906            });
1907
1908            cx.stop_propagation();
1909            return;
1910        }
1911
1912        cx.propagate();
1913    }
1914
1915    fn get_clipboard_contents(
1916        &mut self,
1917        cx: &mut Context<Self>,
1918    ) -> (String, CopyMetadata, Vec<text::Selection<usize>>) {
1919        let (selection, creases) = self.editor.update(cx, |editor, cx| {
1920            let mut selection = editor.selections.newest_adjusted(cx);
1921            let snapshot = editor.buffer().read(cx).snapshot(cx);
1922
1923            selection.goal = SelectionGoal::None;
1924
1925            let selection_start = snapshot.point_to_offset(selection.start);
1926
1927            (
1928                selection.map(|point| snapshot.point_to_offset(point)),
1929                editor.display_map.update(cx, |display_map, cx| {
1930                    display_map
1931                        .snapshot(cx)
1932                        .crease_snapshot
1933                        .creases_in_range(
1934                            MultiBufferRow(selection.start.row)
1935                                ..MultiBufferRow(selection.end.row + 1),
1936                            &snapshot,
1937                        )
1938                        .filter_map(|crease| {
1939                            if let Crease::Inline {
1940                                range, metadata, ..
1941                            } = &crease
1942                            {
1943                                let metadata = metadata.as_ref()?;
1944                                let start = range
1945                                    .start
1946                                    .to_offset(&snapshot)
1947                                    .saturating_sub(selection_start);
1948                                let end = range
1949                                    .end
1950                                    .to_offset(&snapshot)
1951                                    .saturating_sub(selection_start);
1952
1953                                let range_relative_to_selection = start..end;
1954                                if !range_relative_to_selection.is_empty() {
1955                                    return Some(SelectedCreaseMetadata {
1956                                        range_relative_to_selection,
1957                                        crease: metadata.clone(),
1958                                    });
1959                                }
1960                            }
1961                            None
1962                        })
1963                        .collect::<Vec<_>>()
1964                }),
1965            )
1966        });
1967
1968        let context = self.context.read(cx);
1969
1970        let mut text = String::new();
1971        for message in context.messages(cx) {
1972            if message.offset_range.start >= selection.range().end {
1973                break;
1974            } else if message.offset_range.end >= selection.range().start {
1975                let range = cmp::max(message.offset_range.start, selection.range().start)
1976                    ..cmp::min(message.offset_range.end, selection.range().end);
1977                if !range.is_empty() {
1978                    for chunk in context.buffer().read(cx).text_for_range(range) {
1979                        text.push_str(chunk);
1980                    }
1981                    if message.offset_range.end < selection.range().end {
1982                        text.push('\n');
1983                    }
1984                }
1985            }
1986        }
1987
1988        (text, CopyMetadata { creases }, vec![selection])
1989    }
1990
1991    fn paste(
1992        &mut self,
1993        action: &editor::actions::Paste,
1994        window: &mut Window,
1995        cx: &mut Context<Self>,
1996    ) {
1997        cx.stop_propagation();
1998
1999        let images = if let Some(item) = cx.read_from_clipboard() {
2000            item.into_entries()
2001                .filter_map(|entry| {
2002                    if let ClipboardEntry::Image(image) = entry {
2003                        Some(image)
2004                    } else {
2005                        None
2006                    }
2007                })
2008                .collect()
2009        } else {
2010            Vec::new()
2011        };
2012
2013        let metadata = if let Some(item) = cx.read_from_clipboard() {
2014            item.entries().first().and_then(|entry| {
2015                if let ClipboardEntry::String(text) = entry {
2016                    text.metadata_json::<CopyMetadata>()
2017                } else {
2018                    None
2019                }
2020            })
2021        } else {
2022            None
2023        };
2024
2025        if images.is_empty() {
2026            self.editor.update(cx, |editor, cx| {
2027                let paste_position = editor.selections.newest::<usize>(cx).head();
2028                editor.paste(action, window, cx);
2029
2030                if let Some(metadata) = metadata {
2031                    let buffer = editor.buffer().read(cx).snapshot(cx);
2032
2033                    let mut buffer_rows_to_fold = BTreeSet::new();
2034                    let weak_editor = cx.entity().downgrade();
2035                    editor.insert_creases(
2036                        metadata.creases.into_iter().map(|metadata| {
2037                            let start = buffer.anchor_after(
2038                                paste_position + metadata.range_relative_to_selection.start,
2039                            );
2040                            let end = buffer.anchor_before(
2041                                paste_position + metadata.range_relative_to_selection.end,
2042                            );
2043
2044                            let buffer_row = MultiBufferRow(start.to_point(&buffer).row);
2045                            buffer_rows_to_fold.insert(buffer_row);
2046                            Crease::inline(
2047                                start..end,
2048                                FoldPlaceholder {
2049                                    render: render_fold_icon_button(
2050                                        weak_editor.clone(),
2051                                        metadata.crease.icon,
2052                                        metadata.crease.label.clone(),
2053                                    ),
2054                                    ..Default::default()
2055                                },
2056                                render_slash_command_output_toggle,
2057                                |_, _, _, _| Empty.into_any(),
2058                            )
2059                            .with_metadata(metadata.crease.clone())
2060                        }),
2061                        cx,
2062                    );
2063                    for buffer_row in buffer_rows_to_fold.into_iter().rev() {
2064                        editor.fold_at(buffer_row, window, cx);
2065                    }
2066                }
2067            });
2068        } else {
2069            let mut image_positions = Vec::new();
2070            self.editor.update(cx, |editor, cx| {
2071                editor.transact(window, cx, |editor, _window, cx| {
2072                    let edits = editor
2073                        .selections
2074                        .all::<usize>(cx)
2075                        .into_iter()
2076                        .map(|selection| (selection.start..selection.end, "\n"));
2077                    editor.edit(edits, cx);
2078
2079                    let snapshot = editor.buffer().read(cx).snapshot(cx);
2080                    for selection in editor.selections.all::<usize>(cx) {
2081                        image_positions.push(snapshot.anchor_before(selection.end));
2082                    }
2083                });
2084            });
2085
2086            self.context.update(cx, |context, cx| {
2087                for image in images {
2088                    let Some(render_image) = image.to_image_data(cx.svg_renderer()).log_err()
2089                    else {
2090                        continue;
2091                    };
2092                    let image_id = image.id();
2093                    let image_task = LanguageModelImage::from_image(Arc::new(image), cx).shared();
2094
2095                    for image_position in image_positions.iter() {
2096                        context.insert_content(
2097                            Content::Image {
2098                                anchor: image_position.text_anchor,
2099                                image_id,
2100                                image: image_task.clone(),
2101                                render_image: render_image.clone(),
2102                            },
2103                            cx,
2104                        );
2105                    }
2106                }
2107            });
2108        }
2109    }
2110
2111    fn update_image_blocks(&mut self, cx: &mut Context<Self>) {
2112        self.editor.update(cx, |editor, cx| {
2113            let buffer = editor.buffer().read(cx).snapshot(cx);
2114            let excerpt_id = *buffer.as_singleton().unwrap().0;
2115            let old_blocks = std::mem::take(&mut self.image_blocks);
2116            let new_blocks = self
2117                .context
2118                .read(cx)
2119                .contents(cx)
2120                .map(
2121                    |Content::Image {
2122                         anchor,
2123                         render_image,
2124                         ..
2125                     }| (anchor, render_image),
2126                )
2127                .filter_map(|(anchor, render_image)| {
2128                    const MAX_HEIGHT_IN_LINES: u32 = 8;
2129                    let anchor = buffer.anchor_in_excerpt(excerpt_id, anchor).unwrap();
2130                    let image = render_image.clone();
2131                    anchor.is_valid(&buffer).then(|| BlockProperties {
2132                        placement: BlockPlacement::Above(anchor),
2133                        height: Some(MAX_HEIGHT_IN_LINES),
2134                        style: BlockStyle::Sticky,
2135                        render: Arc::new(move |cx| {
2136                            let image_size = size_for_image(
2137                                &image,
2138                                size(
2139                                    cx.max_width - cx.gutter_dimensions.full_width(),
2140                                    MAX_HEIGHT_IN_LINES as f32 * cx.line_height,
2141                                ),
2142                            );
2143                            h_flex()
2144                                .pl(cx.gutter_dimensions.full_width())
2145                                .child(
2146                                    img(image.clone())
2147                                        .object_fit(gpui::ObjectFit::ScaleDown)
2148                                        .w(image_size.width)
2149                                        .h(image_size.height),
2150                                )
2151                                .into_any_element()
2152                        }),
2153                        priority: 0,
2154                    })
2155                })
2156                .collect::<Vec<_>>();
2157
2158            editor.remove_blocks(old_blocks, None, cx);
2159            let ids = editor.insert_blocks(new_blocks, None, cx);
2160            self.image_blocks = HashSet::from_iter(ids);
2161        });
2162    }
2163
2164    fn split(&mut self, _: &Split, _window: &mut Window, cx: &mut Context<Self>) {
2165        self.context.update(cx, |context, cx| {
2166            let selections = self.editor.read(cx).selections.disjoint_anchors();
2167            for selection in selections.as_ref() {
2168                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2169                let range = selection
2170                    .map(|endpoint| endpoint.to_offset(&buffer))
2171                    .range();
2172                context.split_message(range, cx);
2173            }
2174        });
2175    }
2176
2177    fn save(&mut self, _: &Save, _window: &mut Window, cx: &mut Context<Self>) {
2178        self.context.update(cx, |context, cx| {
2179            context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx)
2180        });
2181    }
2182
2183    pub fn title(&self, cx: &App) -> SharedString {
2184        self.context.read(cx).summary_or_default()
2185    }
2186
2187    fn render_patch_block(
2188        &mut self,
2189        range: Range<text::Anchor>,
2190        max_width: Pixels,
2191        gutter_width: Pixels,
2192        id: BlockId,
2193        selected: bool,
2194        window: &mut Window,
2195        cx: &mut Context<Self>,
2196    ) -> Option<AnyElement> {
2197        let snapshot = self
2198            .editor
2199            .update(cx, |editor, cx| editor.snapshot(window, cx));
2200        let (excerpt_id, _buffer_id, _) = snapshot.buffer_snapshot.as_singleton().unwrap();
2201        let excerpt_id = *excerpt_id;
2202        let anchor = snapshot
2203            .buffer_snapshot
2204            .anchor_in_excerpt(excerpt_id, range.start)
2205            .unwrap();
2206
2207        let theme = cx.theme().clone();
2208        let patch = self.context.read(cx).patch_for_range(&range, cx)?;
2209        let paths = patch
2210            .paths()
2211            .map(|p| SharedString::from(p.to_string()))
2212            .collect::<BTreeSet<_>>();
2213
2214        Some(
2215            v_flex()
2216                .id(id)
2217                .bg(theme.colors().editor_background)
2218                .ml(gutter_width)
2219                .pb_1()
2220                .w(max_width - gutter_width)
2221                .rounded_sm()
2222                .border_1()
2223                .border_color(theme.colors().border_variant)
2224                .overflow_hidden()
2225                .hover(|style| style.border_color(theme.colors().text_accent))
2226                .when(selected, |this| {
2227                    this.border_color(theme.colors().text_accent)
2228                })
2229                .cursor(CursorStyle::PointingHand)
2230                .on_click(cx.listener(move |this, _, window, cx| {
2231                    this.editor.update(cx, |editor, cx| {
2232                        editor.change_selections(None, window, cx, |selections| {
2233                            selections.select_ranges(vec![anchor..anchor]);
2234                        });
2235                    });
2236                    this.focus_active_patch(window, cx);
2237                }))
2238                .child(
2239                    div()
2240                        .px_2()
2241                        .py_1()
2242                        .overflow_hidden()
2243                        .text_ellipsis()
2244                        .border_b_1()
2245                        .border_color(theme.colors().border_variant)
2246                        .bg(theme.colors().element_background)
2247                        .child(
2248                            Label::new(patch.title.clone())
2249                                .size(LabelSize::Small)
2250                                .color(Color::Muted),
2251                        ),
2252                )
2253                .children(paths.into_iter().map(|path| {
2254                    h_flex()
2255                        .px_2()
2256                        .pt_1()
2257                        .gap_1p5()
2258                        .child(Icon::new(IconName::File).size(IconSize::Small))
2259                        .child(Label::new(path).size(LabelSize::Small))
2260                }))
2261                .when(patch.status == AssistantPatchStatus::Pending, |div| {
2262                    div.child(
2263                        h_flex()
2264                            .pt_1()
2265                            .px_2()
2266                            .gap_1()
2267                            .child(
2268                                Icon::new(IconName::ArrowCircle)
2269                                    .size(IconSize::XSmall)
2270                                    .color(Color::Muted)
2271                                    .with_animation(
2272                                        "arrow-circle",
2273                                        Animation::new(Duration::from_secs(2)).repeat(),
2274                                        |icon, delta| {
2275                                            icon.transform(Transformation::rotate(percentage(
2276                                                delta,
2277                                            )))
2278                                        },
2279                                    ),
2280                            )
2281                            .child(
2282                                Label::new("Generating…")
2283                                    .color(Color::Muted)
2284                                    .size(LabelSize::Small)
2285                                    .with_animation(
2286                                        "pulsating-label",
2287                                        Animation::new(Duration::from_secs(2))
2288                                            .repeat()
2289                                            .with_easing(pulsating_between(0.4, 0.8)),
2290                                        |label, delta| label.alpha(delta),
2291                                    ),
2292                            ),
2293                    )
2294                })
2295                .into_any(),
2296        )
2297    }
2298
2299    fn render_notice(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
2300        // This was previously gated behind the `zed-pro` feature flag. Since we
2301        // aren't planning to ship that right now, we're just hard-coding this
2302        // value to not show the nudge.
2303        let nudge = Some(false);
2304
2305        if nudge.map_or(false, |value| value) {
2306            Some(
2307                h_flex()
2308                    .p_3()
2309                    .border_b_1()
2310                    .border_color(cx.theme().colors().border_variant)
2311                    .bg(cx.theme().colors().editor_background)
2312                    .justify_between()
2313                    .child(
2314                        h_flex()
2315                            .gap_3()
2316                            .child(Icon::new(IconName::ZedAssistant).color(Color::Accent))
2317                            .child(Label::new("Zed AI is here! Get started by signing in →")),
2318                    )
2319                    .child(
2320                        Button::new("sign-in", "Sign in")
2321                            .size(ButtonSize::Compact)
2322                            .style(ButtonStyle::Filled)
2323                            .on_click(cx.listener(|this, _event, _window, cx| {
2324                                let client = this
2325                                    .workspace
2326                                    .update(cx, |workspace, _| workspace.client().clone())
2327                                    .log_err();
2328
2329                                if let Some(client) = client {
2330                                    cx.spawn(async move |this, cx| {
2331                                        client.authenticate_and_connect(true, cx).await?;
2332                                        this.update(cx, |_, cx| cx.notify())
2333                                    })
2334                                    .detach_and_log_err(cx)
2335                                }
2336                            })),
2337                    )
2338                    .into_any_element(),
2339            )
2340        } else if let Some(configuration_error) = configuration_error(cx) {
2341            let label = match configuration_error {
2342                ConfigurationError::NoProvider => "No LLM provider selected.",
2343                ConfigurationError::ProviderNotAuthenticated => "LLM provider is not configured.",
2344                ConfigurationError::ProviderPendingTermsAcceptance(_) => {
2345                    "LLM provider requires accepting the Terms of Service."
2346                }
2347            };
2348            Some(
2349                h_flex()
2350                    .px_3()
2351                    .py_2()
2352                    .border_b_1()
2353                    .border_color(cx.theme().colors().border_variant)
2354                    .bg(cx.theme().colors().editor_background)
2355                    .justify_between()
2356                    .child(
2357                        h_flex()
2358                            .gap_3()
2359                            .child(
2360                                Icon::new(IconName::Warning)
2361                                    .size(IconSize::Small)
2362                                    .color(Color::Warning),
2363                            )
2364                            .child(Label::new(label)),
2365                    )
2366                    .child(
2367                        Button::new("open-configuration", "Configure Providers")
2368                            .size(ButtonSize::Compact)
2369                            .icon(Some(IconName::SlidersVertical))
2370                            .icon_size(IconSize::Small)
2371                            .icon_position(IconPosition::Start)
2372                            .style(ButtonStyle::Filled)
2373                            .on_click({
2374                                let focus_handle = self.focus_handle(cx).clone();
2375                                move |_event, window, cx| {
2376                                    if cx.has_flag::<Assistant2FeatureFlag>() {
2377                                        focus_handle.dispatch_action(
2378                                            &zed_actions::agent::OpenConfiguration,
2379                                            window,
2380                                            cx,
2381                                        );
2382                                    } else {
2383                                        focus_handle.dispatch_action(
2384                                            &zed_actions::assistant::ShowConfiguration,
2385                                            window,
2386                                            cx,
2387                                        );
2388                                    };
2389                                }
2390                            }),
2391                    )
2392                    .into_any_element(),
2393            )
2394        } else {
2395            None
2396        }
2397    }
2398
2399    fn render_send_button(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2400        let focus_handle = self.focus_handle(cx).clone();
2401
2402        let (style, tooltip) = match token_state(&self.context, cx) {
2403            Some(TokenState::NoTokensLeft { .. }) => (
2404                ButtonStyle::Tinted(TintColor::Error),
2405                Some(Tooltip::text("Token limit reached")(window, cx)),
2406            ),
2407            Some(TokenState::HasMoreTokens {
2408                over_warn_threshold,
2409                ..
2410            }) => {
2411                let (style, tooltip) = if over_warn_threshold {
2412                    (
2413                        ButtonStyle::Tinted(TintColor::Warning),
2414                        Some(Tooltip::text("Token limit is close to exhaustion")(
2415                            window, cx,
2416                        )),
2417                    )
2418                } else {
2419                    (ButtonStyle::Filled, None)
2420                };
2421                (style, tooltip)
2422            }
2423            None => (ButtonStyle::Filled, None),
2424        };
2425
2426        let model = LanguageModelRegistry::read_global(cx).default_model();
2427
2428        let has_configuration_error = configuration_error(cx).is_some();
2429        let needs_to_accept_terms = self.show_accept_terms
2430            && model
2431                .as_ref()
2432                .map_or(false, |model| model.provider.must_accept_terms(cx));
2433        let disabled = has_configuration_error || needs_to_accept_terms;
2434
2435        ButtonLike::new("send_button")
2436            .disabled(disabled)
2437            .style(style)
2438            .when_some(tooltip, |button, tooltip| {
2439                button.tooltip(move |_, _| tooltip.clone())
2440            })
2441            .layer(ElevationIndex::ModalSurface)
2442            .child(Label::new(
2443                if AssistantSettings::get_global(cx).are_live_diffs_enabled(cx) {
2444                    "Chat"
2445                } else {
2446                    "Send"
2447                },
2448            ))
2449            .children(
2450                KeyBinding::for_action_in(&Assist, &focus_handle, window, cx)
2451                    .map(|binding| binding.into_any_element()),
2452            )
2453            .on_click(move |_event, window, cx| {
2454                focus_handle.dispatch_action(&Assist, window, cx);
2455            })
2456    }
2457
2458    fn render_edit_button(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2459        let focus_handle = self.focus_handle(cx).clone();
2460
2461        let (style, tooltip) = match token_state(&self.context, cx) {
2462            Some(TokenState::NoTokensLeft { .. }) => (
2463                ButtonStyle::Tinted(TintColor::Error),
2464                Some(Tooltip::text("Token limit reached")(window, cx)),
2465            ),
2466            Some(TokenState::HasMoreTokens {
2467                over_warn_threshold,
2468                ..
2469            }) => {
2470                let (style, tooltip) = if over_warn_threshold {
2471                    (
2472                        ButtonStyle::Tinted(TintColor::Warning),
2473                        Some(Tooltip::text("Token limit is close to exhaustion")(
2474                            window, cx,
2475                        )),
2476                    )
2477                } else {
2478                    (ButtonStyle::Filled, None)
2479                };
2480                (style, tooltip)
2481            }
2482            None => (ButtonStyle::Filled, None),
2483        };
2484
2485        let provider = LanguageModelRegistry::read_global(cx)
2486            .default_model()
2487            .map(|default| default.provider);
2488
2489        let has_configuration_error = configuration_error(cx).is_some();
2490        let needs_to_accept_terms = self.show_accept_terms
2491            && provider
2492                .as_ref()
2493                .map_or(false, |provider| provider.must_accept_terms(cx));
2494        let disabled = has_configuration_error || needs_to_accept_terms;
2495
2496        ButtonLike::new("edit_button")
2497            .disabled(disabled)
2498            .style(style)
2499            .when_some(tooltip, |button, tooltip| {
2500                button.tooltip(move |_, _| tooltip.clone())
2501            })
2502            .layer(ElevationIndex::ModalSurface)
2503            .child(Label::new("Suggest Edits"))
2504            .children(
2505                KeyBinding::for_action_in(&Edit, &focus_handle, window, cx)
2506                    .map(|binding| binding.into_any_element()),
2507            )
2508            .on_click(move |_event, window, cx| {
2509                focus_handle.dispatch_action(&Edit, window, cx);
2510            })
2511    }
2512
2513    fn render_inject_context_menu(&self, cx: &mut Context<Self>) -> impl IntoElement {
2514        slash_command_picker::SlashCommandSelector::new(
2515            self.slash_commands.clone(),
2516            cx.entity().downgrade(),
2517            IconButton::new("trigger", IconName::Plus)
2518                .icon_size(IconSize::Small)
2519                .icon_color(Color::Muted),
2520            move |window, cx| {
2521                Tooltip::with_meta(
2522                    "Add Context",
2523                    None,
2524                    "Type / to insert via keyboard",
2525                    window,
2526                    cx,
2527                )
2528            },
2529        )
2530    }
2531
2532    fn render_language_model_selector(&self, cx: &mut Context<Self>) -> impl IntoElement {
2533        let active_model = LanguageModelRegistry::read_global(cx)
2534            .default_model()
2535            .map(|default| default.model);
2536        let focus_handle = self.editor().focus_handle(cx).clone();
2537        let model_name = match active_model {
2538            Some(model) => model.name().0,
2539            None => SharedString::from("No model selected"),
2540        };
2541
2542        LanguageModelSelectorPopoverMenu::new(
2543            self.language_model_selector.clone(),
2544            ButtonLike::new("active-model")
2545                .style(ButtonStyle::Subtle)
2546                .child(
2547                    h_flex()
2548                        .gap_0p5()
2549                        .child(
2550                            Label::new(model_name)
2551                                .size(LabelSize::Small)
2552                                .color(Color::Muted),
2553                        )
2554                        .child(
2555                            Icon::new(IconName::ChevronDown)
2556                                .color(Color::Muted)
2557                                .size(IconSize::XSmall),
2558                        ),
2559                ),
2560            move |window, cx| {
2561                Tooltip::for_action_in(
2562                    "Change Model",
2563                    &ToggleModelSelector,
2564                    &focus_handle,
2565                    window,
2566                    cx,
2567                )
2568            },
2569            gpui::Corner::BottomLeft,
2570        )
2571        .with_handle(self.language_model_selector_menu_handle.clone())
2572    }
2573
2574    fn render_last_error(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
2575        let last_error = self.last_error.as_ref()?;
2576
2577        Some(
2578            div()
2579                .absolute()
2580                .right_3()
2581                .bottom_12()
2582                .max_w_96()
2583                .py_2()
2584                .px_3()
2585                .elevation_2(cx)
2586                .occlude()
2587                .child(match last_error {
2588                    AssistError::FileRequired => self.render_file_required_error(cx),
2589                    AssistError::PaymentRequired => self.render_payment_required_error(cx),
2590                    AssistError::MaxMonthlySpendReached => {
2591                        self.render_max_monthly_spend_reached_error(cx)
2592                    }
2593                    AssistError::Message(error_message) => {
2594                        self.render_assist_error(error_message, cx)
2595                    }
2596                })
2597                .into_any(),
2598        )
2599    }
2600
2601    fn render_file_required_error(&self, cx: &mut Context<Self>) -> AnyElement {
2602        v_flex()
2603            .gap_0p5()
2604            .child(
2605                h_flex()
2606                    .gap_1p5()
2607                    .items_center()
2608                    .child(Icon::new(IconName::Warning).color(Color::Warning))
2609                    .child(
2610                        Label::new("Suggest Edits needs a file to edit").weight(FontWeight::MEDIUM),
2611                    ),
2612            )
2613            .child(
2614                div()
2615                    .id("error-message")
2616                    .max_h_24()
2617                    .overflow_y_scroll()
2618                    .child(Label::new(
2619                        "To include files, type /file or /tab in your prompt.",
2620                    )),
2621            )
2622            .child(
2623                h_flex()
2624                    .justify_end()
2625                    .mt_1()
2626                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
2627                        |this, _, _window, cx| {
2628                            this.last_error = None;
2629                            cx.notify();
2630                        },
2631                    ))),
2632            )
2633            .into_any()
2634    }
2635
2636    fn render_payment_required_error(&self, cx: &mut Context<Self>) -> AnyElement {
2637        const ERROR_MESSAGE: &str = "Free tier exceeded. Subscribe and add payment to continue using Zed LLMs. You'll be billed at cost for tokens used.";
2638
2639        v_flex()
2640            .gap_0p5()
2641            .child(
2642                h_flex()
2643                    .gap_1p5()
2644                    .items_center()
2645                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2646                    .child(Label::new("Free Usage Exceeded").weight(FontWeight::MEDIUM)),
2647            )
2648            .child(
2649                div()
2650                    .id("error-message")
2651                    .max_h_24()
2652                    .overflow_y_scroll()
2653                    .child(Label::new(ERROR_MESSAGE)),
2654            )
2655            .child(
2656                h_flex()
2657                    .justify_end()
2658                    .mt_1()
2659                    .child(Button::new("subscribe", "Subscribe").on_click(cx.listener(
2660                        |this, _, _window, cx| {
2661                            this.last_error = None;
2662                            cx.open_url(&zed_urls::account_url(cx));
2663                            cx.notify();
2664                        },
2665                    )))
2666                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
2667                        |this, _, _window, cx| {
2668                            this.last_error = None;
2669                            cx.notify();
2670                        },
2671                    ))),
2672            )
2673            .into_any()
2674    }
2675
2676    fn render_max_monthly_spend_reached_error(&self, cx: &mut Context<Self>) -> AnyElement {
2677        const ERROR_MESSAGE: &str = "You have reached your maximum monthly spend. Increase your spend limit to continue using Zed LLMs.";
2678
2679        v_flex()
2680            .gap_0p5()
2681            .child(
2682                h_flex()
2683                    .gap_1p5()
2684                    .items_center()
2685                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2686                    .child(Label::new("Max Monthly Spend Reached").weight(FontWeight::MEDIUM)),
2687            )
2688            .child(
2689                div()
2690                    .id("error-message")
2691                    .max_h_24()
2692                    .overflow_y_scroll()
2693                    .child(Label::new(ERROR_MESSAGE)),
2694            )
2695            .child(
2696                h_flex()
2697                    .justify_end()
2698                    .mt_1()
2699                    .child(
2700                        Button::new("subscribe", "Update Monthly Spend Limit").on_click(
2701                            cx.listener(|this, _, _window, cx| {
2702                                this.last_error = None;
2703                                cx.open_url(&zed_urls::account_url(cx));
2704                                cx.notify();
2705                            }),
2706                        ),
2707                    )
2708                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
2709                        |this, _, _window, cx| {
2710                            this.last_error = None;
2711                            cx.notify();
2712                        },
2713                    ))),
2714            )
2715            .into_any()
2716    }
2717
2718    fn render_assist_error(
2719        &self,
2720        error_message: &SharedString,
2721        cx: &mut Context<Self>,
2722    ) -> AnyElement {
2723        v_flex()
2724            .gap_0p5()
2725            .child(
2726                h_flex()
2727                    .gap_1p5()
2728                    .items_center()
2729                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2730                    .child(
2731                        Label::new("Error interacting with language model")
2732                            .weight(FontWeight::MEDIUM),
2733                    ),
2734            )
2735            .child(
2736                div()
2737                    .id("error-message")
2738                    .max_h_32()
2739                    .overflow_y_scroll()
2740                    .child(Label::new(error_message.clone())),
2741            )
2742            .child(
2743                h_flex()
2744                    .justify_end()
2745                    .mt_1()
2746                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener(
2747                        |this, _, _window, cx| {
2748                            this.last_error = None;
2749                            cx.notify();
2750                        },
2751                    ))),
2752            )
2753            .into_any()
2754    }
2755}
2756
2757/// Returns the contents of the *outermost* fenced code block that contains the given offset.
2758fn find_surrounding_code_block(snapshot: &BufferSnapshot, offset: usize) -> Option<Range<usize>> {
2759    const CODE_BLOCK_NODE: &'static str = "fenced_code_block";
2760    const CODE_BLOCK_CONTENT: &'static str = "code_fence_content";
2761
2762    let layer = snapshot.syntax_layers().next()?;
2763
2764    let root_node = layer.node();
2765    let mut cursor = root_node.walk();
2766
2767    // Go to the first child for the given offset
2768    while cursor.goto_first_child_for_byte(offset).is_some() {
2769        // If we're at the end of the node, go to the next one.
2770        // Example: if you have a fenced-code-block, and you're on the start of the line
2771        // right after the closing ```, you want to skip the fenced-code-block and
2772        // go to the next sibling.
2773        if cursor.node().end_byte() == offset {
2774            cursor.goto_next_sibling();
2775        }
2776
2777        if cursor.node().start_byte() > offset {
2778            break;
2779        }
2780
2781        // We found the fenced code block.
2782        if cursor.node().kind() == CODE_BLOCK_NODE {
2783            // Now we need to find the child node that contains the code.
2784            cursor.goto_first_child();
2785            loop {
2786                if cursor.node().kind() == CODE_BLOCK_CONTENT {
2787                    return Some(cursor.node().byte_range());
2788                }
2789                if !cursor.goto_next_sibling() {
2790                    break;
2791                }
2792            }
2793        }
2794    }
2795
2796    None
2797}
2798
2799fn render_thought_process_fold_icon_button(
2800    editor: WeakEntity<Editor>,
2801    status: ThoughtProcessStatus,
2802) -> Arc<dyn Send + Sync + Fn(FoldId, Range<Anchor>, &mut App) -> AnyElement> {
2803    Arc::new(move |fold_id, fold_range, _cx| {
2804        let editor = editor.clone();
2805
2806        let button = ButtonLike::new(fold_id).layer(ElevationIndex::ElevatedSurface);
2807        let button = match status {
2808            ThoughtProcessStatus::Pending => button
2809                .child(
2810                    Icon::new(IconName::LightBulb)
2811                        .size(IconSize::Small)
2812                        .color(Color::Muted),
2813                )
2814                .child(
2815                    Label::new("Thinking…").color(Color::Muted).with_animation(
2816                        "pulsating-label",
2817                        Animation::new(Duration::from_secs(2))
2818                            .repeat()
2819                            .with_easing(pulsating_between(0.4, 0.8)),
2820                        |label, delta| label.alpha(delta),
2821                    ),
2822                ),
2823            ThoughtProcessStatus::Completed => button
2824                .style(ButtonStyle::Filled)
2825                .child(Icon::new(IconName::LightBulb).size(IconSize::Small))
2826                .child(Label::new("Thought Process").single_line()),
2827        };
2828
2829        button
2830            .on_click(move |_, window, cx| {
2831                editor
2832                    .update(cx, |editor, cx| {
2833                        let buffer_start = fold_range
2834                            .start
2835                            .to_point(&editor.buffer().read(cx).read(cx));
2836                        let buffer_row = MultiBufferRow(buffer_start.row);
2837                        editor.unfold_at(buffer_row, window, cx);
2838                    })
2839                    .ok();
2840            })
2841            .into_any_element()
2842    })
2843}
2844
2845fn render_fold_icon_button(
2846    editor: WeakEntity<Editor>,
2847    icon: IconName,
2848    label: SharedString,
2849) -> Arc<dyn Send + Sync + Fn(FoldId, Range<Anchor>, &mut App) -> AnyElement> {
2850    Arc::new(move |fold_id, fold_range, _cx| {
2851        let editor = editor.clone();
2852        ButtonLike::new(fold_id)
2853            .style(ButtonStyle::Filled)
2854            .layer(ElevationIndex::ElevatedSurface)
2855            .child(Icon::new(icon))
2856            .child(Label::new(label.clone()).single_line())
2857            .on_click(move |_, window, cx| {
2858                editor
2859                    .update(cx, |editor, cx| {
2860                        let buffer_start = fold_range
2861                            .start
2862                            .to_point(&editor.buffer().read(cx).read(cx));
2863                        let buffer_row = MultiBufferRow(buffer_start.row);
2864                        editor.unfold_at(buffer_row, window, cx);
2865                    })
2866                    .ok();
2867            })
2868            .into_any_element()
2869    })
2870}
2871
2872type ToggleFold = Arc<dyn Fn(bool, &mut Window, &mut App) + Send + Sync>;
2873
2874fn render_slash_command_output_toggle(
2875    row: MultiBufferRow,
2876    is_folded: bool,
2877    fold: ToggleFold,
2878    _window: &mut Window,
2879    _cx: &mut App,
2880) -> AnyElement {
2881    Disclosure::new(
2882        ("slash-command-output-fold-indicator", row.0 as u64),
2883        !is_folded,
2884    )
2885    .toggle_state(is_folded)
2886    .on_click(move |_e, window, cx| fold(!is_folded, window, cx))
2887    .into_any_element()
2888}
2889
2890pub fn fold_toggle(
2891    name: &'static str,
2892) -> impl Fn(
2893    MultiBufferRow,
2894    bool,
2895    Arc<dyn Fn(bool, &mut Window, &mut App) + Send + Sync>,
2896    &mut Window,
2897    &mut App,
2898) -> AnyElement {
2899    move |row, is_folded, fold, _window, _cx| {
2900        Disclosure::new((name, row.0 as u64), !is_folded)
2901            .toggle_state(is_folded)
2902            .on_click(move |_e, window, cx| fold(!is_folded, window, cx))
2903            .into_any_element()
2904    }
2905}
2906
2907fn quote_selection_fold_placeholder(title: String, editor: WeakEntity<Editor>) -> FoldPlaceholder {
2908    FoldPlaceholder {
2909        render: Arc::new({
2910            move |fold_id, fold_range, _cx| {
2911                let editor = editor.clone();
2912                ButtonLike::new(fold_id)
2913                    .style(ButtonStyle::Filled)
2914                    .layer(ElevationIndex::ElevatedSurface)
2915                    .child(Icon::new(IconName::TextSnippet))
2916                    .child(Label::new(title.clone()).single_line())
2917                    .on_click(move |_, window, cx| {
2918                        editor
2919                            .update(cx, |editor, cx| {
2920                                let buffer_start = fold_range
2921                                    .start
2922                                    .to_point(&editor.buffer().read(cx).read(cx));
2923                                let buffer_row = MultiBufferRow(buffer_start.row);
2924                                editor.unfold_at(buffer_row, window, cx);
2925                            })
2926                            .ok();
2927                    })
2928                    .into_any_element()
2929            }
2930        }),
2931        merge_adjacent: false,
2932        ..Default::default()
2933    }
2934}
2935
2936fn render_quote_selection_output_toggle(
2937    row: MultiBufferRow,
2938    is_folded: bool,
2939    fold: ToggleFold,
2940    _window: &mut Window,
2941    _cx: &mut App,
2942) -> AnyElement {
2943    Disclosure::new(("quote-selection-indicator", row.0 as u64), !is_folded)
2944        .toggle_state(is_folded)
2945        .on_click(move |_e, window, cx| fold(!is_folded, window, cx))
2946        .into_any_element()
2947}
2948
2949fn render_pending_slash_command_gutter_decoration(
2950    row: MultiBufferRow,
2951    status: &PendingSlashCommandStatus,
2952    confirm_command: Arc<dyn Fn(&mut Window, &mut App)>,
2953) -> AnyElement {
2954    let mut icon = IconButton::new(
2955        ("slash-command-gutter-decoration", row.0),
2956        ui::IconName::TriangleRight,
2957    )
2958    .on_click(move |_e, window, cx| confirm_command(window, cx))
2959    .icon_size(ui::IconSize::Small)
2960    .size(ui::ButtonSize::None);
2961
2962    match status {
2963        PendingSlashCommandStatus::Idle => {
2964            icon = icon.icon_color(Color::Muted);
2965        }
2966        PendingSlashCommandStatus::Running { .. } => {
2967            icon = icon.toggle_state(true);
2968        }
2969        PendingSlashCommandStatus::Error(_) => icon = icon.icon_color(Color::Error),
2970    }
2971
2972    icon.into_any_element()
2973}
2974
2975fn render_docs_slash_command_trailer(
2976    row: MultiBufferRow,
2977    command: ParsedSlashCommand,
2978    cx: &mut App,
2979) -> AnyElement {
2980    if command.arguments.is_empty() {
2981        return Empty.into_any();
2982    }
2983    let args = DocsSlashCommandArgs::parse(&command.arguments);
2984
2985    let Some(store) = args
2986        .provider()
2987        .and_then(|provider| IndexedDocsStore::try_global(provider, cx).ok())
2988    else {
2989        return Empty.into_any();
2990    };
2991
2992    let Some(package) = args.package() else {
2993        return Empty.into_any();
2994    };
2995
2996    let mut children = Vec::new();
2997
2998    if store.is_indexing(&package) {
2999        children.push(
3000            div()
3001                .id(("crates-being-indexed", row.0))
3002                .child(Icon::new(IconName::ArrowCircle).with_animation(
3003                    "arrow-circle",
3004                    Animation::new(Duration::from_secs(4)).repeat(),
3005                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
3006                ))
3007                .tooltip({
3008                    let package = package.clone();
3009                    Tooltip::text(format!("Indexing {package}"))
3010                })
3011                .into_any_element(),
3012        );
3013    }
3014
3015    if let Some(latest_error) = store.latest_error_for_package(&package) {
3016        children.push(
3017            div()
3018                .id(("latest-error", row.0))
3019                .child(
3020                    Icon::new(IconName::Warning)
3021                        .size(IconSize::Small)
3022                        .color(Color::Warning),
3023                )
3024                .tooltip(Tooltip::text(format!("Failed to index: {latest_error}")))
3025                .into_any_element(),
3026        )
3027    }
3028
3029    let is_indexing = store.is_indexing(&package);
3030    let latest_error = store.latest_error_for_package(&package);
3031
3032    if !is_indexing && latest_error.is_none() {
3033        return Empty.into_any();
3034    }
3035
3036    h_flex().gap_2().children(children).into_any_element()
3037}
3038
3039#[derive(Debug, Clone, Serialize, Deserialize)]
3040struct CopyMetadata {
3041    creases: Vec<SelectedCreaseMetadata>,
3042}
3043
3044#[derive(Debug, Clone, Serialize, Deserialize)]
3045struct SelectedCreaseMetadata {
3046    range_relative_to_selection: Range<usize>,
3047    crease: CreaseMetadata,
3048}
3049
3050impl EventEmitter<EditorEvent> for ContextEditor {}
3051impl EventEmitter<SearchEvent> for ContextEditor {}
3052
3053impl Render for ContextEditor {
3054    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3055        let provider = LanguageModelRegistry::read_global(cx)
3056            .default_model()
3057            .map(|default| default.provider);
3058        let accept_terms = if self.show_accept_terms {
3059            provider.as_ref().and_then(|provider| {
3060                provider.render_accept_terms(LanguageModelProviderTosView::PromptEditorPopup, cx)
3061            })
3062        } else {
3063            None
3064        };
3065
3066        let language_model_selector = self.language_model_selector_menu_handle.clone();
3067        v_flex()
3068            .key_context("ContextEditor")
3069            .capture_action(cx.listener(ContextEditor::cancel))
3070            .capture_action(cx.listener(ContextEditor::save))
3071            .capture_action(cx.listener(ContextEditor::copy))
3072            .capture_action(cx.listener(ContextEditor::cut))
3073            .capture_action(cx.listener(ContextEditor::paste))
3074            .capture_action(cx.listener(ContextEditor::cycle_message_role))
3075            .capture_action(cx.listener(ContextEditor::confirm_command))
3076            .on_action(cx.listener(ContextEditor::edit))
3077            .on_action(cx.listener(ContextEditor::assist))
3078            .on_action(cx.listener(ContextEditor::split))
3079            .on_action(move |_: &ToggleModelSelector, window, cx| {
3080                language_model_selector.toggle(window, cx);
3081            })
3082            .size_full()
3083            .children(self.render_notice(cx))
3084            .child(
3085                div()
3086                    .flex_grow()
3087                    .bg(cx.theme().colors().editor_background)
3088                    .child(self.editor.clone()),
3089            )
3090            .when_some(accept_terms, |this, element| {
3091                this.child(
3092                    div()
3093                        .absolute()
3094                        .right_3()
3095                        .bottom_12()
3096                        .max_w_96()
3097                        .py_2()
3098                        .px_3()
3099                        .elevation_2(cx)
3100                        .bg(cx.theme().colors().surface_background)
3101                        .occlude()
3102                        .child(element),
3103                )
3104            })
3105            .children(self.render_last_error(cx))
3106            .child(
3107                h_flex().w_full().relative().child(
3108                    h_flex()
3109                        .p_2()
3110                        .w_full()
3111                        .border_t_1()
3112                        .border_color(cx.theme().colors().border_variant)
3113                        .bg(cx.theme().colors().editor_background)
3114                        .child(
3115                            h_flex()
3116                                .gap_1()
3117                                .child(self.render_inject_context_menu(cx))
3118                                .child(ui::Divider::vertical())
3119                                .child(
3120                                    div()
3121                                        .pl_0p5()
3122                                        .child(self.render_language_model_selector(cx)),
3123                                ),
3124                        )
3125                        .child(
3126                            h_flex()
3127                                .w_full()
3128                                .justify_end()
3129                                .when(
3130                                    AssistantSettings::get_global(cx).are_live_diffs_enabled(cx),
3131                                    |buttons| {
3132                                        buttons
3133                                            .items_center()
3134                                            .gap_1p5()
3135                                            .child(self.render_edit_button(window, cx))
3136                                            .child(
3137                                                Label::new("or")
3138                                                    .size(LabelSize::Small)
3139                                                    .color(Color::Muted),
3140                                            )
3141                                    },
3142                                )
3143                                .child(self.render_send_button(window, cx)),
3144                        ),
3145                ),
3146            )
3147    }
3148}
3149
3150impl Focusable for ContextEditor {
3151    fn focus_handle(&self, cx: &App) -> FocusHandle {
3152        self.editor.focus_handle(cx)
3153    }
3154}
3155
3156impl Item for ContextEditor {
3157    type Event = editor::EditorEvent;
3158
3159    fn tab_content_text(&self, _detail: usize, cx: &App) -> SharedString {
3160        util::truncate_and_trailoff(&self.title(cx), MAX_TAB_TITLE_LEN).into()
3161    }
3162
3163    fn to_item_events(event: &Self::Event, mut f: impl FnMut(item::ItemEvent)) {
3164        match event {
3165            EditorEvent::Edited { .. } => {
3166                f(item::ItemEvent::Edit);
3167            }
3168            EditorEvent::TitleChanged => {
3169                f(item::ItemEvent::UpdateTab);
3170            }
3171            _ => {}
3172        }
3173    }
3174
3175    fn tab_tooltip_text(&self, cx: &App) -> Option<SharedString> {
3176        Some(self.title(cx).to_string().into())
3177    }
3178
3179    fn as_searchable(&self, handle: &Entity<Self>) -> Option<Box<dyn SearchableItemHandle>> {
3180        Some(Box::new(handle.clone()))
3181    }
3182
3183    fn set_nav_history(
3184        &mut self,
3185        nav_history: pane::ItemNavHistory,
3186        window: &mut Window,
3187        cx: &mut Context<Self>,
3188    ) {
3189        self.editor.update(cx, |editor, cx| {
3190            Item::set_nav_history(editor, nav_history, window, cx)
3191        })
3192    }
3193
3194    fn navigate(
3195        &mut self,
3196        data: Box<dyn std::any::Any>,
3197        window: &mut Window,
3198        cx: &mut Context<Self>,
3199    ) -> bool {
3200        self.editor
3201            .update(cx, |editor, cx| Item::navigate(editor, data, window, cx))
3202    }
3203
3204    fn deactivated(&mut self, window: &mut Window, cx: &mut Context<Self>) {
3205        self.editor
3206            .update(cx, |editor, cx| Item::deactivated(editor, window, cx))
3207    }
3208
3209    fn act_as_type<'a>(
3210        &'a self,
3211        type_id: TypeId,
3212        self_handle: &'a Entity<Self>,
3213        _: &'a App,
3214    ) -> Option<AnyView> {
3215        if type_id == TypeId::of::<Self>() {
3216            Some(self_handle.to_any())
3217        } else if type_id == TypeId::of::<Editor>() {
3218            Some(self.editor.to_any())
3219        } else {
3220            None
3221        }
3222    }
3223
3224    fn include_in_nav_history() -> bool {
3225        false
3226    }
3227}
3228
3229impl SearchableItem for ContextEditor {
3230    type Match = <Editor as SearchableItem>::Match;
3231
3232    fn clear_matches(&mut self, window: &mut Window, cx: &mut Context<Self>) {
3233        self.editor.update(cx, |editor, cx| {
3234            editor.clear_matches(window, cx);
3235        });
3236    }
3237
3238    fn update_matches(
3239        &mut self,
3240        matches: &[Self::Match],
3241        window: &mut Window,
3242        cx: &mut Context<Self>,
3243    ) {
3244        self.editor
3245            .update(cx, |editor, cx| editor.update_matches(matches, window, cx));
3246    }
3247
3248    fn query_suggestion(&mut self, window: &mut Window, cx: &mut Context<Self>) -> String {
3249        self.editor
3250            .update(cx, |editor, cx| editor.query_suggestion(window, cx))
3251    }
3252
3253    fn activate_match(
3254        &mut self,
3255        index: usize,
3256        matches: &[Self::Match],
3257        window: &mut Window,
3258        cx: &mut Context<Self>,
3259    ) {
3260        self.editor.update(cx, |editor, cx| {
3261            editor.activate_match(index, matches, window, cx);
3262        });
3263    }
3264
3265    fn select_matches(
3266        &mut self,
3267        matches: &[Self::Match],
3268        window: &mut Window,
3269        cx: &mut Context<Self>,
3270    ) {
3271        self.editor
3272            .update(cx, |editor, cx| editor.select_matches(matches, window, cx));
3273    }
3274
3275    fn replace(
3276        &mut self,
3277        identifier: &Self::Match,
3278        query: &project::search::SearchQuery,
3279        window: &mut Window,
3280        cx: &mut Context<Self>,
3281    ) {
3282        self.editor.update(cx, |editor, cx| {
3283            editor.replace(identifier, query, window, cx)
3284        });
3285    }
3286
3287    fn find_matches(
3288        &mut self,
3289        query: Arc<project::search::SearchQuery>,
3290        window: &mut Window,
3291        cx: &mut Context<Self>,
3292    ) -> Task<Vec<Self::Match>> {
3293        self.editor
3294            .update(cx, |editor, cx| editor.find_matches(query, window, cx))
3295    }
3296
3297    fn active_match_index(
3298        &mut self,
3299        direction: Direction,
3300        matches: &[Self::Match],
3301        window: &mut Window,
3302        cx: &mut Context<Self>,
3303    ) -> Option<usize> {
3304        self.editor.update(cx, |editor, cx| {
3305            editor.active_match_index(direction, matches, window, cx)
3306        })
3307    }
3308}
3309
3310impl FollowableItem for ContextEditor {
3311    fn remote_id(&self) -> Option<workspace::ViewId> {
3312        self.remote_id
3313    }
3314
3315    fn to_state_proto(&self, window: &Window, cx: &App) -> Option<proto::view::Variant> {
3316        let context = self.context.read(cx);
3317        Some(proto::view::Variant::ContextEditor(
3318            proto::view::ContextEditor {
3319                context_id: context.id().to_proto(),
3320                editor: if let Some(proto::view::Variant::Editor(proto)) =
3321                    self.editor.read(cx).to_state_proto(window, cx)
3322                {
3323                    Some(proto)
3324                } else {
3325                    None
3326                },
3327            },
3328        ))
3329    }
3330
3331    fn from_state_proto(
3332        workspace: Entity<Workspace>,
3333        id: workspace::ViewId,
3334        state: &mut Option<proto::view::Variant>,
3335        window: &mut Window,
3336        cx: &mut App,
3337    ) -> Option<Task<Result<Entity<Self>>>> {
3338        let proto::view::Variant::ContextEditor(_) = state.as_ref()? else {
3339            return None;
3340        };
3341        let Some(proto::view::Variant::ContextEditor(state)) = state.take() else {
3342            unreachable!()
3343        };
3344
3345        let context_id = ContextId::from_proto(state.context_id);
3346        let editor_state = state.editor?;
3347
3348        let project = workspace.read(cx).project().clone();
3349        let assistant_panel_delegate = <dyn AssistantPanelDelegate>::try_global(cx)?;
3350
3351        let context_editor_task = workspace.update(cx, |workspace, cx| {
3352            assistant_panel_delegate.open_remote_context(workspace, context_id, window, cx)
3353        });
3354
3355        Some(window.spawn(cx, async move |cx| {
3356            let context_editor = context_editor_task.await?;
3357            context_editor
3358                .update_in(cx, |context_editor, window, cx| {
3359                    context_editor.remote_id = Some(id);
3360                    context_editor.editor.update(cx, |editor, cx| {
3361                        editor.apply_update_proto(
3362                            &project,
3363                            proto::update_view::Variant::Editor(proto::update_view::Editor {
3364                                selections: editor_state.selections,
3365                                pending_selection: editor_state.pending_selection,
3366                                scroll_top_anchor: editor_state.scroll_top_anchor,
3367                                scroll_x: editor_state.scroll_y,
3368                                scroll_y: editor_state.scroll_y,
3369                                ..Default::default()
3370                            }),
3371                            window,
3372                            cx,
3373                        )
3374                    })
3375                })?
3376                .await?;
3377            Ok(context_editor)
3378        }))
3379    }
3380
3381    fn to_follow_event(event: &Self::Event) -> Option<item::FollowEvent> {
3382        Editor::to_follow_event(event)
3383    }
3384
3385    fn add_event_to_update_proto(
3386        &self,
3387        event: &Self::Event,
3388        update: &mut Option<proto::update_view::Variant>,
3389        window: &Window,
3390        cx: &App,
3391    ) -> bool {
3392        self.editor
3393            .read(cx)
3394            .add_event_to_update_proto(event, update, window, cx)
3395    }
3396
3397    fn apply_update_proto(
3398        &mut self,
3399        project: &Entity<Project>,
3400        message: proto::update_view::Variant,
3401        window: &mut Window,
3402        cx: &mut Context<Self>,
3403    ) -> Task<Result<()>> {
3404        self.editor.update(cx, |editor, cx| {
3405            editor.apply_update_proto(project, message, window, cx)
3406        })
3407    }
3408
3409    fn is_project_item(&self, _window: &Window, _cx: &App) -> bool {
3410        true
3411    }
3412
3413    fn set_leader_peer_id(
3414        &mut self,
3415        leader_peer_id: Option<proto::PeerId>,
3416        window: &mut Window,
3417        cx: &mut Context<Self>,
3418    ) {
3419        self.editor.update(cx, |editor, cx| {
3420            editor.set_leader_peer_id(leader_peer_id, window, cx)
3421        })
3422    }
3423
3424    fn dedup(&self, existing: &Self, _window: &Window, cx: &App) -> Option<item::Dedup> {
3425        if existing.context.read(cx).id() == self.context.read(cx).id() {
3426            Some(item::Dedup::KeepExisting)
3427        } else {
3428            None
3429        }
3430    }
3431}
3432
3433pub struct ContextEditorToolbarItem {
3434    active_context_editor: Option<WeakEntity<ContextEditor>>,
3435    model_summary_editor: Entity<Editor>,
3436}
3437
3438impl ContextEditorToolbarItem {
3439    pub fn new(model_summary_editor: Entity<Editor>) -> Self {
3440        Self {
3441            active_context_editor: None,
3442            model_summary_editor,
3443        }
3444    }
3445}
3446
3447pub fn render_remaining_tokens(
3448    context_editor: &Entity<ContextEditor>,
3449    cx: &App,
3450) -> Option<impl IntoElement + use<>> {
3451    let context = &context_editor.read(cx).context;
3452
3453    let (token_count_color, token_count, max_token_count, tooltip) = match token_state(context, cx)?
3454    {
3455        TokenState::NoTokensLeft {
3456            max_token_count,
3457            token_count,
3458        } => (
3459            Color::Error,
3460            token_count,
3461            max_token_count,
3462            Some("Token Limit Reached"),
3463        ),
3464        TokenState::HasMoreTokens {
3465            max_token_count,
3466            token_count,
3467            over_warn_threshold,
3468        } => {
3469            let (color, tooltip) = if over_warn_threshold {
3470                (Color::Warning, Some("Token Limit is Close to Exhaustion"))
3471            } else {
3472                (Color::Muted, None)
3473            };
3474            (color, token_count, max_token_count, tooltip)
3475        }
3476    };
3477
3478    Some(
3479        h_flex()
3480            .id("token-count")
3481            .gap_0p5()
3482            .child(
3483                Label::new(humanize_token_count(token_count))
3484                    .size(LabelSize::Small)
3485                    .color(token_count_color),
3486            )
3487            .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
3488            .child(
3489                Label::new(humanize_token_count(max_token_count))
3490                    .size(LabelSize::Small)
3491                    .color(Color::Muted),
3492            )
3493            .when_some(tooltip, |element, tooltip| {
3494                element.tooltip(Tooltip::text(tooltip))
3495            }),
3496    )
3497}
3498
3499impl Render for ContextEditorToolbarItem {
3500    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3501        let left_side = h_flex()
3502            .group("chat-title-group")
3503            .gap_1()
3504            .items_center()
3505            .flex_grow()
3506            .child(
3507                div()
3508                    .w_full()
3509                    .when(self.active_context_editor.is_some(), |left_side| {
3510                        left_side.child(self.model_summary_editor.clone())
3511                    }),
3512            )
3513            .child(
3514                div().visible_on_hover("chat-title-group").child(
3515                    IconButton::new("regenerate-context", IconName::RefreshTitle)
3516                        .shape(ui::IconButtonShape::Square)
3517                        .tooltip(Tooltip::text("Regenerate Title"))
3518                        .on_click(cx.listener(move |_, _, _window, cx| {
3519                            cx.emit(ContextEditorToolbarItemEvent::RegenerateSummary)
3520                        })),
3521                ),
3522            );
3523
3524        let right_side = h_flex()
3525            .gap_2()
3526            // TODO display this in a nicer way, once we have a design for it.
3527            // .children({
3528            //     let project = self
3529            //         .workspace
3530            //         .upgrade()
3531            //         .map(|workspace| workspace.read(cx).project().downgrade());
3532            //
3533            //     let scan_items_remaining = cx.update_global(|db: &mut SemanticDb, cx| {
3534            //         project.and_then(|project| db.remaining_summaries(&project, cx))
3535            //     });
3536            //     scan_items_remaining
3537            //         .map(|remaining_items| format!("Files to scan: {}", remaining_items))
3538            // })
3539            .children(
3540                self.active_context_editor
3541                    .as_ref()
3542                    .and_then(|editor| editor.upgrade())
3543                    .and_then(|editor| render_remaining_tokens(&editor, cx)),
3544            );
3545
3546        h_flex()
3547            .px_0p5()
3548            .size_full()
3549            .gap_2()
3550            .justify_between()
3551            .child(left_side)
3552            .child(right_side)
3553    }
3554}
3555
3556impl ToolbarItemView for ContextEditorToolbarItem {
3557    fn set_active_pane_item(
3558        &mut self,
3559        active_pane_item: Option<&dyn ItemHandle>,
3560        _window: &mut Window,
3561        cx: &mut Context<Self>,
3562    ) -> ToolbarItemLocation {
3563        self.active_context_editor = active_pane_item
3564            .and_then(|item| item.act_as::<ContextEditor>(cx))
3565            .map(|editor| editor.downgrade());
3566        cx.notify();
3567        if self.active_context_editor.is_none() {
3568            ToolbarItemLocation::Hidden
3569        } else {
3570            ToolbarItemLocation::PrimaryRight
3571        }
3572    }
3573
3574    fn pane_focus_update(
3575        &mut self,
3576        _pane_focused: bool,
3577        _window: &mut Window,
3578        cx: &mut Context<Self>,
3579    ) {
3580        cx.notify();
3581    }
3582}
3583
3584impl EventEmitter<ToolbarItemEvent> for ContextEditorToolbarItem {}
3585
3586pub enum ContextEditorToolbarItemEvent {
3587    RegenerateSummary,
3588}
3589impl EventEmitter<ContextEditorToolbarItemEvent> for ContextEditorToolbarItem {}
3590
3591enum PendingSlashCommand {}
3592
3593fn invoked_slash_command_fold_placeholder(
3594    command_id: InvokedSlashCommandId,
3595    context: WeakEntity<AssistantContext>,
3596) -> FoldPlaceholder {
3597    FoldPlaceholder {
3598        constrain_width: false,
3599        merge_adjacent: false,
3600        render: Arc::new(move |fold_id, _, cx| {
3601            let Some(context) = context.upgrade() else {
3602                return Empty.into_any();
3603            };
3604
3605            let Some(command) = context.read(cx).invoked_slash_command(&command_id) else {
3606                return Empty.into_any();
3607            };
3608
3609            h_flex()
3610                .id(fold_id)
3611                .px_1()
3612                .ml_6()
3613                .gap_2()
3614                .bg(cx.theme().colors().surface_background)
3615                .rounded_sm()
3616                .child(Label::new(format!("/{}", command.name.clone())))
3617                .map(|parent| match &command.status {
3618                    InvokedSlashCommandStatus::Running(_) => {
3619                        parent.child(Icon::new(IconName::ArrowCircle).with_animation(
3620                            "arrow-circle",
3621                            Animation::new(Duration::from_secs(4)).repeat(),
3622                            |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
3623                        ))
3624                    }
3625                    InvokedSlashCommandStatus::Error(message) => parent.child(
3626                        Label::new(format!("error: {message}"))
3627                            .single_line()
3628                            .color(Color::Error),
3629                    ),
3630                    InvokedSlashCommandStatus::Finished => parent,
3631                })
3632                .into_any_element()
3633        }),
3634        type_tag: Some(TypeId::of::<PendingSlashCommand>()),
3635    }
3636}
3637
3638enum TokenState {
3639    NoTokensLeft {
3640        max_token_count: usize,
3641        token_count: usize,
3642    },
3643    HasMoreTokens {
3644        max_token_count: usize,
3645        token_count: usize,
3646        over_warn_threshold: bool,
3647    },
3648}
3649
3650fn token_state(context: &Entity<AssistantContext>, cx: &App) -> Option<TokenState> {
3651    const WARNING_TOKEN_THRESHOLD: f32 = 0.8;
3652
3653    let model = LanguageModelRegistry::read_global(cx)
3654        .default_model()?
3655        .model;
3656    let token_count = context.read(cx).token_count()?;
3657    let max_token_count = model.max_token_count();
3658
3659    let remaining_tokens = max_token_count as isize - token_count as isize;
3660    let token_state = if remaining_tokens <= 0 {
3661        TokenState::NoTokensLeft {
3662            max_token_count,
3663            token_count,
3664        }
3665    } else {
3666        let over_warn_threshold =
3667            token_count as f32 / max_token_count as f32 >= WARNING_TOKEN_THRESHOLD;
3668        TokenState::HasMoreTokens {
3669            max_token_count,
3670            token_count,
3671            over_warn_threshold,
3672        }
3673    };
3674    Some(token_state)
3675}
3676
3677fn size_for_image(data: &RenderImage, max_size: Size<Pixels>) -> Size<Pixels> {
3678    let image_size = data
3679        .size(0)
3680        .map(|dimension| Pixels::from(u32::from(dimension)));
3681    let image_ratio = image_size.width / image_size.height;
3682    let bounds_ratio = max_size.width / max_size.height;
3683
3684    if image_size.width > max_size.width || image_size.height > max_size.height {
3685        if bounds_ratio > image_ratio {
3686            size(
3687                image_size.width * (max_size.height / image_size.height),
3688                max_size.height,
3689            )
3690        } else {
3691            size(
3692                max_size.width,
3693                image_size.height * (max_size.width / image_size.width),
3694            )
3695        }
3696    } else {
3697        size(image_size.width, image_size.height)
3698    }
3699}
3700
3701pub enum ConfigurationError {
3702    NoProvider,
3703    ProviderNotAuthenticated,
3704    ProviderPendingTermsAcceptance(Arc<dyn LanguageModelProvider>),
3705}
3706
3707fn configuration_error(cx: &App) -> Option<ConfigurationError> {
3708    let model = LanguageModelRegistry::read_global(cx).default_model();
3709    let is_authenticated = model
3710        .as_ref()
3711        .map_or(false, |model| model.provider.is_authenticated(cx));
3712
3713    if model.is_some() && is_authenticated {
3714        return None;
3715    }
3716
3717    if model.is_none() {
3718        return Some(ConfigurationError::NoProvider);
3719    }
3720
3721    if !is_authenticated {
3722        return Some(ConfigurationError::ProviderNotAuthenticated);
3723    }
3724
3725    None
3726}
3727
3728pub fn humanize_token_count(count: usize) -> String {
3729    match count {
3730        0..=999 => count.to_string(),
3731        1000..=9999 => {
3732            let thousands = count / 1000;
3733            let hundreds = (count % 1000 + 50) / 100;
3734            if hundreds == 0 {
3735                format!("{}k", thousands)
3736            } else if hundreds == 10 {
3737                format!("{}k", thousands + 1)
3738            } else {
3739                format!("{}.{}k", thousands, hundreds)
3740            }
3741        }
3742        1_000_000..=9_999_999 => {
3743            let millions = count / 1_000_000;
3744            let hundred_thousands = (count % 1_000_000 + 50_000) / 100_000;
3745            if hundred_thousands == 0 {
3746                format!("{}M", millions)
3747            } else if hundred_thousands == 10 {
3748                format!("{}M", millions + 1)
3749            } else {
3750                format!("{}.{}M", millions, hundred_thousands)
3751            }
3752        }
3753        10_000_000.. => format!("{}M", (count + 500_000) / 1_000_000),
3754        _ => format!("{}k", (count + 500) / 1000),
3755    }
3756}
3757
3758pub fn make_lsp_adapter_delegate(
3759    project: &Entity<Project>,
3760    cx: &mut App,
3761) -> Result<Option<Arc<dyn LspAdapterDelegate>>> {
3762    project.update(cx, |project, cx| {
3763        // TODO: Find the right worktree.
3764        let Some(worktree) = project.worktrees(cx).next() else {
3765            return Ok(None::<Arc<dyn LspAdapterDelegate>>);
3766        };
3767        let http_client = project.client().http_client();
3768        project.lsp_store().update(cx, |_, cx| {
3769            Ok(Some(LocalLspAdapterDelegate::new(
3770                project.languages().clone(),
3771                project.environment(),
3772                cx.weak_entity(),
3773                &worktree,
3774                http_client,
3775                project.fs().clone(),
3776                cx,
3777            ) as Arc<dyn LspAdapterDelegate>))
3778        })
3779    })
3780}
3781
3782#[cfg(test)]
3783mod tests {
3784    use super::*;
3785    use gpui::App;
3786    use language::Buffer;
3787    use unindent::Unindent;
3788
3789    #[gpui::test]
3790    fn test_find_code_blocks(cx: &mut App) {
3791        let markdown = languages::language("markdown", tree_sitter_md::LANGUAGE.into());
3792
3793        let buffer = cx.new(|cx| {
3794            let text = r#"
3795                line 0
3796                line 1
3797                ```rust
3798                fn main() {}
3799                ```
3800                line 5
3801                line 6
3802                line 7
3803                ```go
3804                func main() {}
3805                ```
3806                line 11
3807                ```
3808                this is plain text code block
3809                ```
3810
3811                ```go
3812                func another() {}
3813                ```
3814                line 19
3815            "#
3816            .unindent();
3817            let mut buffer = Buffer::local(text, cx);
3818            buffer.set_language(Some(markdown.clone()), cx);
3819            buffer
3820        });
3821        let snapshot = buffer.read(cx).snapshot();
3822
3823        let code_blocks = vec![
3824            Point::new(3, 0)..Point::new(4, 0),
3825            Point::new(9, 0)..Point::new(10, 0),
3826            Point::new(13, 0)..Point::new(14, 0),
3827            Point::new(17, 0)..Point::new(18, 0),
3828        ]
3829        .into_iter()
3830        .map(|range| snapshot.point_to_offset(range.start)..snapshot.point_to_offset(range.end))
3831        .collect::<Vec<_>>();
3832
3833        let expected_results = vec![
3834            (0, None),
3835            (1, None),
3836            (2, Some(code_blocks[0].clone())),
3837            (3, Some(code_blocks[0].clone())),
3838            (4, Some(code_blocks[0].clone())),
3839            (5, None),
3840            (6, None),
3841            (7, None),
3842            (8, Some(code_blocks[1].clone())),
3843            (9, Some(code_blocks[1].clone())),
3844            (10, Some(code_blocks[1].clone())),
3845            (11, None),
3846            (12, Some(code_blocks[2].clone())),
3847            (13, Some(code_blocks[2].clone())),
3848            (14, Some(code_blocks[2].clone())),
3849            (15, None),
3850            (16, Some(code_blocks[3].clone())),
3851            (17, Some(code_blocks[3].clone())),
3852            (18, Some(code_blocks[3].clone())),
3853            (19, None),
3854        ];
3855
3856        for (row, expected) in expected_results {
3857            let offset = snapshot.point_to_offset(Point::new(row, 0));
3858            let range = find_surrounding_code_block(&snapshot, offset);
3859            assert_eq!(range, expected, "unexpected result on row {:?}", row);
3860        }
3861    }
3862}