assistant_panel.rs

   1use crate::{
   2    assistant_settings::{AssistantDockPosition, AssistantSettings},
   3    humanize_token_count,
   4    prompt_library::open_prompt_library,
   5    slash_command::{
   6        default_command::DefaultSlashCommand,
   7        docs_command::{DocsSlashCommand, DocsSlashCommandArgs},
   8        SlashCommandCompletionProvider, SlashCommandRegistry,
   9    },
  10    terminal_inline_assistant::TerminalInlineAssistant,
  11    Assist, ConfirmCommand, Context, ContextEvent, ContextId, ContextStore, CycleMessageRole,
  12    DebugEditSteps, DeployHistory, DeployPromptLibrary, EditSuggestionGroup, InlineAssist,
  13    InlineAssistId, InlineAssistant, InsertIntoEditor, MessageStatus, ModelSelector,
  14    PendingSlashCommand, PendingSlashCommandStatus, QuoteSelection, RemoteContextMetadata,
  15    SavedContextMetadata, Split, ToggleFocus, ToggleModelSelector, WorkflowStep,
  16    WorkflowStepEditSuggestions,
  17};
  18use crate::{ContextStoreEvent, ShowConfiguration};
  19use anyhow::{anyhow, Result};
  20use assistant_slash_command::{SlashCommand, SlashCommandOutputSection};
  21use client::{proto, Client, Status};
  22use collections::{BTreeSet, HashMap, HashSet};
  23use editor::{
  24    actions::{FoldAt, MoveToEndOfLine, Newline, ShowCompletions, UnfoldAt},
  25    display_map::{
  26        BlockDisposition, BlockProperties, BlockStyle, Crease, CustomBlockId, RenderBlock,
  27        ToDisplayPoint,
  28    },
  29    scroll::{Autoscroll, AutoscrollStrategy, ScrollAnchor},
  30    Anchor, Editor, EditorEvent, ExcerptRange, MultiBuffer, RowExt, ToOffset as _, ToPoint,
  31};
  32use editor::{display_map::CreaseId, FoldPlaceholder};
  33use fs::Fs;
  34use gpui::{
  35    div, percentage, point, Action, Animation, AnimationExt, AnyElement, AnyView, AppContext,
  36    AsyncWindowContext, ClipboardItem, Context as _, DismissEvent, Empty, Entity, EventEmitter,
  37    FocusHandle, FocusableView, InteractiveElement, IntoElement, Model, ParentElement, Pixels,
  38    Render, SharedString, StatefulInteractiveElement, Styled, Subscription, Task, Transformation,
  39    UpdateGlobal, View, ViewContext, VisualContext, WeakView, WindowContext,
  40};
  41use indexed_docs::IndexedDocsStore;
  42use language::{
  43    language_settings::SoftWrap, Buffer, Capability, LanguageRegistry, LspAdapterDelegate, Point,
  44    ToOffset,
  45};
  46use language_model::{
  47    provider::cloud::PROVIDER_ID, LanguageModelProvider, LanguageModelProviderId,
  48    LanguageModelRegistry, Role,
  49};
  50use multi_buffer::MultiBufferRow;
  51use picker::{Picker, PickerDelegate};
  52use project::{Project, ProjectLspAdapterDelegate};
  53use search::{buffer_search::DivRegistrar, BufferSearchBar};
  54use settings::{update_settings_file, Settings};
  55use smol::stream::StreamExt;
  56use std::{
  57    borrow::Cow,
  58    cmp::{self, Ordering},
  59    fmt::Write,
  60    ops::Range,
  61    path::PathBuf,
  62    sync::Arc,
  63    time::Duration,
  64};
  65use terminal_view::{terminal_panel::TerminalPanel, TerminalView};
  66use ui::TintColor;
  67use ui::{
  68    prelude::*,
  69    utils::{format_distance_from_now, DateTimeType},
  70    Avatar, AvatarShape, ButtonLike, ContextMenu, Disclosure, ElevationIndex, KeyBinding, ListItem,
  71    ListItemSpacing, PopoverMenu, PopoverMenuHandle, Tooltip,
  72};
  73use util::ResultExt;
  74use workspace::{
  75    dock::{DockPosition, Panel, PanelEvent},
  76    item::{self, FollowableItem, Item, ItemHandle},
  77    notifications::NotifyTaskExt,
  78    pane::{self, SaveIntent},
  79    searchable::{SearchEvent, SearchableItem},
  80    Pane, Save, ToggleZoom, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
  81};
  82use workspace::{searchable::SearchableItemHandle, NewFile};
  83
  84pub fn init(cx: &mut AppContext) {
  85    workspace::FollowableViewRegistry::register::<ContextEditor>(cx);
  86    cx.observe_new_views(
  87        |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
  88            workspace
  89                .register_action(|workspace, _: &ToggleFocus, cx| {
  90                    let settings = AssistantSettings::get_global(cx);
  91                    if !settings.enabled {
  92                        return;
  93                    }
  94
  95                    workspace.toggle_panel_focus::<AssistantPanel>(cx);
  96                })
  97                .register_action(AssistantPanel::inline_assist)
  98                .register_action(ContextEditor::quote_selection)
  99                .register_action(ContextEditor::insert_selection)
 100                .register_action(AssistantPanel::show_configuration);
 101        },
 102    )
 103    .detach();
 104
 105    cx.observe_new_views(
 106        |terminal_panel: &mut TerminalPanel, cx: &mut ViewContext<TerminalPanel>| {
 107            let settings = AssistantSettings::get_global(cx);
 108            if !settings.enabled {
 109                return;
 110            }
 111
 112            terminal_panel.register_tab_bar_button(cx.new_view(|_| InlineAssistTabBarButton), cx);
 113        },
 114    )
 115    .detach();
 116}
 117
 118struct InlineAssistTabBarButton;
 119
 120impl Render for InlineAssistTabBarButton {
 121    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
 122        IconButton::new("terminal_inline_assistant", IconName::MagicWand)
 123            .icon_size(IconSize::Small)
 124            .on_click(cx.listener(|_, _, cx| {
 125                cx.dispatch_action(InlineAssist::default().boxed_clone());
 126            }))
 127            .tooltip(move |cx| Tooltip::for_action("Inline Assist", &InlineAssist::default(), cx))
 128    }
 129}
 130
 131pub enum AssistantPanelEvent {
 132    ContextEdited,
 133}
 134
 135pub struct AssistantPanel {
 136    pane: View<Pane>,
 137    workspace: WeakView<Workspace>,
 138    width: Option<Pixels>,
 139    height: Option<Pixels>,
 140    project: Model<Project>,
 141    context_store: Model<ContextStore>,
 142    languages: Arc<LanguageRegistry>,
 143    fs: Arc<dyn Fs>,
 144    subscriptions: Vec<Subscription>,
 145    model_selector_menu_handle: PopoverMenuHandle<ContextMenu>,
 146    model_summary_editor: View<Editor>,
 147    authenticate_provider_task: Option<(LanguageModelProviderId, Task<()>)>,
 148    configuration_subscription: Option<Subscription>,
 149    client_status: Option<client::Status>,
 150    watch_client_status: Option<Task<()>>,
 151    show_zed_ai_notice: bool,
 152}
 153
 154#[derive(Clone)]
 155enum ContextMetadata {
 156    Remote(RemoteContextMetadata),
 157    Saved(SavedContextMetadata),
 158}
 159
 160struct SavedContextPickerDelegate {
 161    store: Model<ContextStore>,
 162    project: Model<Project>,
 163    matches: Vec<ContextMetadata>,
 164    selected_index: usize,
 165}
 166
 167enum SavedContextPickerEvent {
 168    Confirmed(ContextMetadata),
 169}
 170
 171enum InlineAssistTarget {
 172    Editor(View<Editor>, bool),
 173    Terminal(View<TerminalView>),
 174}
 175
 176impl EventEmitter<SavedContextPickerEvent> for Picker<SavedContextPickerDelegate> {}
 177
 178impl SavedContextPickerDelegate {
 179    fn new(project: Model<Project>, store: Model<ContextStore>) -> Self {
 180        Self {
 181            project,
 182            store,
 183            matches: Vec::new(),
 184            selected_index: 0,
 185        }
 186    }
 187}
 188
 189impl PickerDelegate for SavedContextPickerDelegate {
 190    type ListItem = ListItem;
 191
 192    fn match_count(&self) -> usize {
 193        self.matches.len()
 194    }
 195
 196    fn selected_index(&self) -> usize {
 197        self.selected_index
 198    }
 199
 200    fn set_selected_index(&mut self, ix: usize, _cx: &mut ViewContext<Picker<Self>>) {
 201        self.selected_index = ix;
 202    }
 203
 204    fn placeholder_text(&self, _cx: &mut WindowContext) -> Arc<str> {
 205        "Search...".into()
 206    }
 207
 208    fn update_matches(&mut self, query: String, cx: &mut ViewContext<Picker<Self>>) -> Task<()> {
 209        let search = self.store.read(cx).search(query, cx);
 210        cx.spawn(|this, mut cx| async move {
 211            let matches = search.await;
 212            this.update(&mut cx, |this, cx| {
 213                let host_contexts = this.delegate.store.read(cx).host_contexts();
 214                this.delegate.matches = host_contexts
 215                    .iter()
 216                    .cloned()
 217                    .map(ContextMetadata::Remote)
 218                    .chain(matches.into_iter().map(ContextMetadata::Saved))
 219                    .collect();
 220                this.delegate.selected_index = 0;
 221                cx.notify();
 222            })
 223            .ok();
 224        })
 225    }
 226
 227    fn confirm(&mut self, _secondary: bool, cx: &mut ViewContext<Picker<Self>>) {
 228        if let Some(metadata) = self.matches.get(self.selected_index) {
 229            cx.emit(SavedContextPickerEvent::Confirmed(metadata.clone()));
 230        }
 231    }
 232
 233    fn dismissed(&mut self, _cx: &mut ViewContext<Picker<Self>>) {}
 234
 235    fn render_match(
 236        &self,
 237        ix: usize,
 238        selected: bool,
 239        cx: &mut ViewContext<Picker<Self>>,
 240    ) -> Option<Self::ListItem> {
 241        let context = self.matches.get(ix)?;
 242        let item = match context {
 243            ContextMetadata::Remote(context) => {
 244                let host_user = self.project.read(cx).host().and_then(|collaborator| {
 245                    self.project
 246                        .read(cx)
 247                        .user_store()
 248                        .read(cx)
 249                        .get_cached_user(collaborator.user_id)
 250                });
 251                div()
 252                    .flex()
 253                    .w_full()
 254                    .justify_between()
 255                    .gap_2()
 256                    .child(
 257                        h_flex().flex_1().overflow_x_hidden().child(
 258                            Label::new(context.summary.clone().unwrap_or("New Context".into()))
 259                                .size(LabelSize::Small),
 260                        ),
 261                    )
 262                    .child(
 263                        h_flex()
 264                            .gap_2()
 265                            .children(if let Some(host_user) = host_user {
 266                                vec![
 267                                    Avatar::new(host_user.avatar_uri.clone())
 268                                        .shape(AvatarShape::Circle)
 269                                        .into_any_element(),
 270                                    Label::new(format!("Shared by @{}", host_user.github_login))
 271                                        .color(Color::Muted)
 272                                        .size(LabelSize::Small)
 273                                        .into_any_element(),
 274                                ]
 275                            } else {
 276                                vec![Label::new("Shared by host")
 277                                    .color(Color::Muted)
 278                                    .size(LabelSize::Small)
 279                                    .into_any_element()]
 280                            }),
 281                    )
 282            }
 283            ContextMetadata::Saved(context) => div()
 284                .flex()
 285                .w_full()
 286                .justify_between()
 287                .gap_2()
 288                .child(
 289                    h_flex()
 290                        .flex_1()
 291                        .child(Label::new(context.title.clone()).size(LabelSize::Small))
 292                        .overflow_x_hidden(),
 293                )
 294                .child(
 295                    Label::new(format_distance_from_now(
 296                        DateTimeType::Local(context.mtime),
 297                        false,
 298                        true,
 299                        true,
 300                    ))
 301                    .color(Color::Muted)
 302                    .size(LabelSize::Small),
 303                ),
 304        };
 305        Some(
 306            ListItem::new(ix)
 307                .inset(true)
 308                .spacing(ListItemSpacing::Sparse)
 309                .selected(selected)
 310                .child(item),
 311        )
 312    }
 313}
 314
 315impl AssistantPanel {
 316    pub fn load(
 317        workspace: WeakView<Workspace>,
 318        cx: AsyncWindowContext,
 319    ) -> Task<Result<View<Self>>> {
 320        cx.spawn(|mut cx| async move {
 321            let context_store = workspace
 322                .update(&mut cx, |workspace, cx| {
 323                    ContextStore::new(workspace.project().clone(), cx)
 324                })?
 325                .await?;
 326            workspace.update(&mut cx, |workspace, cx| {
 327                // TODO: deserialize state.
 328                cx.new_view(|cx| Self::new(workspace, context_store, cx))
 329            })
 330        })
 331    }
 332
 333    fn new(
 334        workspace: &Workspace,
 335        context_store: Model<ContextStore>,
 336        cx: &mut ViewContext<Self>,
 337    ) -> Self {
 338        let model_selector_menu_handle = PopoverMenuHandle::default();
 339        let model_summary_editor = cx.new_view(|cx| Editor::single_line(cx));
 340        let context_editor_toolbar = cx.new_view(|_| {
 341            ContextEditorToolbarItem::new(
 342                workspace,
 343                model_selector_menu_handle.clone(),
 344                model_summary_editor.clone(),
 345            )
 346        });
 347        let pane = cx.new_view(|cx| {
 348            let mut pane = Pane::new(
 349                workspace.weak_handle(),
 350                workspace.project().clone(),
 351                Default::default(),
 352                None,
 353                NewFile.boxed_clone(),
 354                cx,
 355            );
 356            pane.set_can_split(false, cx);
 357            pane.set_can_navigate(true, cx);
 358            pane.display_nav_history_buttons(None);
 359            pane.set_should_display_tab_bar(|_| true);
 360            pane.set_render_tab_bar_buttons(cx, move |pane, cx| {
 361                h_flex()
 362                    .gap(Spacing::Small.rems(cx))
 363                    .child(
 364                        IconButton::new("menu", IconName::Menu)
 365                            .icon_size(IconSize::Small)
 366                            .on_click(cx.listener(|pane, _, cx| {
 367                                let zoom_label = if pane.is_zoomed() {
 368                                    "Zoom Out"
 369                                } else {
 370                                    "Zoom In"
 371                                };
 372                                let menu = ContextMenu::build(cx, |menu, cx| {
 373                                    menu.context(pane.focus_handle(cx))
 374                                        .action("New Context", Box::new(NewFile))
 375                                        .action("History", Box::new(DeployHistory))
 376                                        .action("Prompt Library", Box::new(DeployPromptLibrary))
 377                                        .action("Configure", Box::new(ShowConfiguration))
 378                                        .action(zoom_label, Box::new(ToggleZoom))
 379                                });
 380                                cx.subscribe(&menu, |pane, _, _: &DismissEvent, _| {
 381                                    pane.new_item_menu = None;
 382                                })
 383                                .detach();
 384                                pane.new_item_menu = Some(menu);
 385                            })),
 386                    )
 387                    .when_some(pane.new_item_menu.as_ref(), |el, new_item_menu| {
 388                        el.child(Pane::render_menu_overlay(new_item_menu))
 389                    })
 390                    .into_any_element()
 391                    .into()
 392            });
 393            pane.toolbar().update(cx, |toolbar, cx| {
 394                toolbar.add_item(context_editor_toolbar.clone(), cx);
 395                toolbar.add_item(cx.new_view(BufferSearchBar::new), cx)
 396            });
 397            pane
 398        });
 399
 400        let subscriptions = vec![
 401            cx.observe(&pane, |_, _, cx| cx.notify()),
 402            cx.subscribe(&pane, Self::handle_pane_event),
 403            cx.subscribe(&context_editor_toolbar, Self::handle_toolbar_event),
 404            cx.subscribe(&model_summary_editor, Self::handle_summary_editor_event),
 405            cx.subscribe(&context_store, Self::handle_context_store_event),
 406            cx.subscribe(
 407                &LanguageModelRegistry::global(cx),
 408                |this, _, event: &language_model::Event, cx| match event {
 409                    language_model::Event::ActiveModelChanged => {
 410                        this.completion_provider_changed(cx);
 411                    }
 412                    language_model::Event::ProviderStateChanged => {
 413                        this.ensure_authenticated(cx);
 414                    }
 415                    language_model::Event::AddedProvider(_)
 416                    | language_model::Event::RemovedProvider(_) => {
 417                        this.ensure_authenticated(cx);
 418                    }
 419                },
 420            ),
 421        ];
 422
 423        let watch_client_status = Self::watch_client_status(workspace.client().clone(), cx);
 424
 425        let mut this = Self {
 426            pane,
 427            workspace: workspace.weak_handle(),
 428            width: None,
 429            height: None,
 430            project: workspace.project().clone(),
 431            context_store,
 432            languages: workspace.app_state().languages.clone(),
 433            fs: workspace.app_state().fs.clone(),
 434            subscriptions,
 435            model_selector_menu_handle,
 436            model_summary_editor,
 437            authenticate_provider_task: None,
 438            configuration_subscription: None,
 439            client_status: None,
 440            watch_client_status: Some(watch_client_status),
 441            show_zed_ai_notice: false,
 442        };
 443        this.new_context(cx);
 444        this
 445    }
 446
 447    fn watch_client_status(client: Arc<Client>, cx: &mut ViewContext<Self>) -> Task<()> {
 448        let mut status_rx = client.status();
 449
 450        cx.spawn(|this, mut cx| async move {
 451            while let Some(status) = status_rx.next().await {
 452                this.update(&mut cx, |this, cx| {
 453                    if this.client_status.is_none()
 454                        || this
 455                            .client_status
 456                            .map_or(false, |old_status| old_status != status)
 457                    {
 458                        this.update_zed_ai_notice_visibility(status, cx);
 459                    }
 460                    this.client_status = Some(status);
 461                })
 462                .log_err();
 463            }
 464            this.update(&mut cx, |this, _cx| this.watch_client_status = None)
 465                .log_err();
 466        })
 467    }
 468
 469    fn handle_pane_event(
 470        &mut self,
 471        pane: View<Pane>,
 472        event: &pane::Event,
 473        cx: &mut ViewContext<Self>,
 474    ) {
 475        let update_model_summary = match event {
 476            pane::Event::Remove => {
 477                cx.emit(PanelEvent::Close);
 478                false
 479            }
 480            pane::Event::ZoomIn => {
 481                cx.emit(PanelEvent::ZoomIn);
 482                false
 483            }
 484            pane::Event::ZoomOut => {
 485                cx.emit(PanelEvent::ZoomOut);
 486                false
 487            }
 488
 489            pane::Event::AddItem { item } => {
 490                self.workspace
 491                    .update(cx, |workspace, cx| {
 492                        item.added_to_pane(workspace, self.pane.clone(), cx)
 493                    })
 494                    .ok();
 495                true
 496            }
 497
 498            pane::Event::ActivateItem { local } => {
 499                if *local {
 500                    self.workspace
 501                        .update(cx, |workspace, cx| {
 502                            workspace.unfollow_in_pane(&pane, cx);
 503                        })
 504                        .ok();
 505                }
 506                cx.emit(AssistantPanelEvent::ContextEdited);
 507                true
 508            }
 509
 510            pane::Event::RemoveItem { idx } => {
 511                if self
 512                    .pane
 513                    .read(cx)
 514                    .item_for_index(*idx)
 515                    .map_or(false, |item| item.downcast::<ConfigurationView>().is_some())
 516                {
 517                    self.configuration_subscription = None;
 518                }
 519                false
 520            }
 521            pane::Event::RemovedItem { .. } => {
 522                cx.emit(AssistantPanelEvent::ContextEdited);
 523                true
 524            }
 525
 526            _ => false,
 527        };
 528
 529        if update_model_summary {
 530            if let Some(editor) = self.active_context_editor(cx) {
 531                self.show_updated_summary(&editor, cx)
 532            }
 533        }
 534    }
 535
 536    fn handle_summary_editor_event(
 537        &mut self,
 538        model_summary_editor: View<Editor>,
 539        event: &EditorEvent,
 540        cx: &mut ViewContext<Self>,
 541    ) {
 542        if matches!(event, EditorEvent::Edited { .. }) {
 543            if let Some(context_editor) = self.active_context_editor(cx) {
 544                let new_summary = model_summary_editor.read(cx).text(cx);
 545                context_editor.update(cx, |context_editor, cx| {
 546                    context_editor.context.update(cx, |context, cx| {
 547                        if context.summary().is_none()
 548                            && (new_summary == DEFAULT_TAB_TITLE || new_summary.trim().is_empty())
 549                        {
 550                            return;
 551                        }
 552                        context.custom_summary(new_summary, cx)
 553                    });
 554                });
 555            }
 556        }
 557    }
 558
 559    fn update_zed_ai_notice_visibility(
 560        &mut self,
 561        client_status: Status,
 562        cx: &mut ViewContext<Self>,
 563    ) {
 564        let active_provider = LanguageModelRegistry::read_global(cx).active_provider();
 565
 566        // If we're signed out and don't have a provider configured, or we're signed-out AND Zed.dev is
 567        // the provider, we want to show a nudge to sign in.
 568        let show_zed_ai_notice = client_status.is_signed_out()
 569            && active_provider.map_or(true, |provider| provider.id().0 == PROVIDER_ID);
 570
 571        self.show_zed_ai_notice = show_zed_ai_notice;
 572        cx.notify();
 573    }
 574
 575    fn handle_toolbar_event(
 576        &mut self,
 577        _: View<ContextEditorToolbarItem>,
 578        _: &ContextEditorToolbarItemEvent,
 579        cx: &mut ViewContext<Self>,
 580    ) {
 581        if let Some(context_editor) = self.active_context_editor(cx) {
 582            context_editor.update(cx, |context_editor, cx| {
 583                context_editor.context.update(cx, |context, cx| {
 584                    context.summarize(true, cx);
 585                })
 586            })
 587        }
 588    }
 589
 590    fn handle_context_store_event(
 591        &mut self,
 592        _context_store: Model<ContextStore>,
 593        event: &ContextStoreEvent,
 594        cx: &mut ViewContext<Self>,
 595    ) {
 596        let ContextStoreEvent::ContextCreated(context_id) = event;
 597        let Some(context) = self
 598            .context_store
 599            .read(cx)
 600            .loaded_context_for_id(&context_id, cx)
 601        else {
 602            log::error!("no context found with ID: {}", context_id.to_proto());
 603            return;
 604        };
 605        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx).log_err();
 606
 607        let assistant_panel = cx.view().downgrade();
 608        let editor = cx.new_view(|cx| {
 609            let mut editor = ContextEditor::for_context(
 610                context,
 611                self.fs.clone(),
 612                self.workspace.clone(),
 613                self.project.clone(),
 614                lsp_adapter_delegate,
 615                assistant_panel,
 616                cx,
 617            );
 618            editor.insert_default_prompt(cx);
 619            editor
 620        });
 621
 622        self.show_context(editor.clone(), cx);
 623    }
 624
 625    fn completion_provider_changed(&mut self, cx: &mut ViewContext<Self>) {
 626        if let Some(editor) = self.active_context_editor(cx) {
 627            editor.update(cx, |active_context, cx| {
 628                active_context
 629                    .context
 630                    .update(cx, |context, cx| context.completion_provider_changed(cx))
 631            })
 632        }
 633
 634        let Some(new_provider_id) = LanguageModelRegistry::read_global(cx)
 635            .active_provider()
 636            .map(|p| p.id())
 637        else {
 638            return;
 639        };
 640
 641        if self
 642            .authenticate_provider_task
 643            .as_ref()
 644            .map_or(true, |(old_provider_id, _)| {
 645                *old_provider_id != new_provider_id
 646            })
 647        {
 648            self.authenticate_provider_task = None;
 649            self.ensure_authenticated(cx);
 650        }
 651
 652        if let Some(status) = self.client_status {
 653            self.update_zed_ai_notice_visibility(status, cx);
 654        }
 655    }
 656
 657    fn ensure_authenticated(&mut self, cx: &mut ViewContext<Self>) {
 658        if self.is_authenticated(cx) {
 659            return;
 660        }
 661
 662        let Some(provider) = LanguageModelRegistry::read_global(cx).active_provider() else {
 663            return;
 664        };
 665
 666        let load_credentials = self.authenticate(cx);
 667
 668        if self.authenticate_provider_task.is_none() {
 669            self.authenticate_provider_task = Some((
 670                provider.id(),
 671                cx.spawn(|this, mut cx| async move {
 672                    let _ = load_credentials.await;
 673                    this.update(&mut cx, |this, _cx| {
 674                        this.authenticate_provider_task = None;
 675                    })
 676                    .log_err();
 677                }),
 678            ));
 679        }
 680    }
 681
 682    pub fn inline_assist(
 683        workspace: &mut Workspace,
 684        action: &InlineAssist,
 685        cx: &mut ViewContext<Workspace>,
 686    ) {
 687        let settings = AssistantSettings::get_global(cx);
 688        if !settings.enabled {
 689            return;
 690        }
 691
 692        let Some(assistant_panel) = workspace.panel::<AssistantPanel>(cx) else {
 693            return;
 694        };
 695
 696        let Some(inline_assist_target) =
 697            Self::resolve_inline_assist_target(workspace, &assistant_panel, cx)
 698        else {
 699            return;
 700        };
 701
 702        let initial_prompt = action.prompt.clone();
 703        if assistant_panel.update(cx, |assistant, cx| assistant.is_authenticated(cx)) {
 704            match inline_assist_target {
 705                InlineAssistTarget::Editor(active_editor, include_context) => {
 706                    InlineAssistant::update_global(cx, |assistant, cx| {
 707                        assistant.assist(
 708                            &active_editor,
 709                            Some(cx.view().downgrade()),
 710                            include_context.then_some(&assistant_panel),
 711                            initial_prompt,
 712                            cx,
 713                        )
 714                    })
 715                }
 716                InlineAssistTarget::Terminal(active_terminal) => {
 717                    TerminalInlineAssistant::update_global(cx, |assistant, cx| {
 718                        assistant.assist(
 719                            &active_terminal,
 720                            Some(cx.view().downgrade()),
 721                            Some(&assistant_panel),
 722                            initial_prompt,
 723                            cx,
 724                        )
 725                    })
 726                }
 727            }
 728        } else {
 729            let assistant_panel = assistant_panel.downgrade();
 730            cx.spawn(|workspace, mut cx| async move {
 731                assistant_panel
 732                    .update(&mut cx, |assistant, cx| assistant.authenticate(cx))?
 733                    .await?;
 734                if assistant_panel.update(&mut cx, |panel, cx| panel.is_authenticated(cx))? {
 735                    cx.update(|cx| match inline_assist_target {
 736                        InlineAssistTarget::Editor(active_editor, include_context) => {
 737                            let assistant_panel = if include_context {
 738                                assistant_panel.upgrade()
 739                            } else {
 740                                None
 741                            };
 742                            InlineAssistant::update_global(cx, |assistant, cx| {
 743                                assistant.assist(
 744                                    &active_editor,
 745                                    Some(workspace),
 746                                    assistant_panel.as_ref(),
 747                                    initial_prompt,
 748                                    cx,
 749                                )
 750                            })
 751                        }
 752                        InlineAssistTarget::Terminal(active_terminal) => {
 753                            TerminalInlineAssistant::update_global(cx, |assistant, cx| {
 754                                assistant.assist(
 755                                    &active_terminal,
 756                                    Some(workspace),
 757                                    assistant_panel.upgrade().as_ref(),
 758                                    initial_prompt,
 759                                    cx,
 760                                )
 761                            })
 762                        }
 763                    })?
 764                } else {
 765                    workspace.update(&mut cx, |workspace, cx| {
 766                        workspace.focus_panel::<AssistantPanel>(cx)
 767                    })?;
 768                }
 769
 770                anyhow::Ok(())
 771            })
 772            .detach_and_log_err(cx)
 773        }
 774    }
 775
 776    fn resolve_inline_assist_target(
 777        workspace: &mut Workspace,
 778        assistant_panel: &View<AssistantPanel>,
 779        cx: &mut WindowContext,
 780    ) -> Option<InlineAssistTarget> {
 781        if let Some(terminal_panel) = workspace.panel::<TerminalPanel>(cx) {
 782            if terminal_panel
 783                .read(cx)
 784                .focus_handle(cx)
 785                .contains_focused(cx)
 786            {
 787                if let Some(terminal_view) = terminal_panel.read(cx).pane().and_then(|pane| {
 788                    pane.read(cx)
 789                        .active_item()
 790                        .and_then(|t| t.downcast::<TerminalView>())
 791                }) {
 792                    return Some(InlineAssistTarget::Terminal(terminal_view));
 793                }
 794            }
 795        }
 796        let context_editor =
 797            assistant_panel
 798                .read(cx)
 799                .active_context_editor(cx)
 800                .and_then(|editor| {
 801                    let editor = &editor.read(cx).editor;
 802                    if editor.read(cx).is_focused(cx) {
 803                        Some(editor.clone())
 804                    } else {
 805                        None
 806                    }
 807                });
 808
 809        if let Some(context_editor) = context_editor {
 810            Some(InlineAssistTarget::Editor(context_editor, false))
 811        } else if let Some(workspace_editor) = workspace
 812            .active_item(cx)
 813            .and_then(|item| item.act_as::<Editor>(cx))
 814        {
 815            Some(InlineAssistTarget::Editor(workspace_editor, true))
 816        } else {
 817            None
 818        }
 819    }
 820
 821    fn new_context(&mut self, cx: &mut ViewContext<Self>) -> Option<View<ContextEditor>> {
 822        if self.project.read(cx).is_remote() {
 823            let task = self
 824                .context_store
 825                .update(cx, |store, cx| store.create_remote_context(cx));
 826
 827            cx.spawn(|this, mut cx| async move {
 828                let context = task.await?;
 829
 830                this.update(&mut cx, |this, cx| {
 831                    let workspace = this.workspace.clone();
 832                    let project = this.project.clone();
 833                    let lsp_adapter_delegate = make_lsp_adapter_delegate(&project, cx).log_err();
 834
 835                    let fs = this.fs.clone();
 836                    let project = this.project.clone();
 837                    let weak_assistant_panel = cx.view().downgrade();
 838
 839                    let editor = cx.new_view(|cx| {
 840                        ContextEditor::for_context(
 841                            context,
 842                            fs,
 843                            workspace,
 844                            project,
 845                            lsp_adapter_delegate,
 846                            weak_assistant_panel,
 847                            cx,
 848                        )
 849                    });
 850
 851                    this.show_context(editor, cx);
 852
 853                    anyhow::Ok(())
 854                })??;
 855
 856                anyhow::Ok(())
 857            })
 858            .detach_and_log_err(cx);
 859
 860            None
 861        } else {
 862            let context = self.context_store.update(cx, |store, cx| store.create(cx));
 863            let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx).log_err();
 864
 865            let assistant_panel = cx.view().downgrade();
 866            let editor = cx.new_view(|cx| {
 867                let mut editor = ContextEditor::for_context(
 868                    context,
 869                    self.fs.clone(),
 870                    self.workspace.clone(),
 871                    self.project.clone(),
 872                    lsp_adapter_delegate,
 873                    assistant_panel,
 874                    cx,
 875                );
 876                editor.insert_default_prompt(cx);
 877                editor
 878            });
 879
 880            self.show_context(editor.clone(), cx);
 881            Some(editor)
 882        }
 883    }
 884
 885    fn show_context(&mut self, context_editor: View<ContextEditor>, cx: &mut ViewContext<Self>) {
 886        let focus = self.focus_handle(cx).contains_focused(cx);
 887        let prev_len = self.pane.read(cx).items_len();
 888        self.pane.update(cx, |pane, cx| {
 889            pane.add_item(Box::new(context_editor.clone()), focus, focus, None, cx)
 890        });
 891
 892        if prev_len != self.pane.read(cx).items_len() {
 893            self.subscriptions
 894                .push(cx.subscribe(&context_editor, Self::handle_context_editor_event));
 895        }
 896
 897        self.show_updated_summary(&context_editor, cx);
 898
 899        cx.emit(AssistantPanelEvent::ContextEdited);
 900        cx.notify();
 901    }
 902
 903    fn show_updated_summary(
 904        &self,
 905        context_editor: &View<ContextEditor>,
 906        cx: &mut ViewContext<Self>,
 907    ) {
 908        context_editor.update(cx, |context_editor, cx| {
 909            let new_summary = context_editor
 910                .context
 911                .read(cx)
 912                .summary()
 913                .map(|s| s.text.clone())
 914                .unwrap_or_else(|| context_editor.title(cx).to_string());
 915            self.model_summary_editor.update(cx, |summary_editor, cx| {
 916                if summary_editor.text(cx) != new_summary {
 917                    summary_editor.set_text(new_summary, cx);
 918                }
 919            });
 920        });
 921    }
 922
 923    fn handle_context_editor_event(
 924        &mut self,
 925        context_editor: View<ContextEditor>,
 926        event: &EditorEvent,
 927        cx: &mut ViewContext<Self>,
 928    ) {
 929        match event {
 930            EditorEvent::TitleChanged => {
 931                self.show_updated_summary(&context_editor, cx);
 932                cx.notify()
 933            }
 934            EditorEvent::Edited { .. } => cx.emit(AssistantPanelEvent::ContextEdited),
 935            _ => {}
 936        }
 937    }
 938
 939    fn show_configuration(
 940        workspace: &mut Workspace,
 941        _: &ShowConfiguration,
 942        cx: &mut ViewContext<Workspace>,
 943    ) {
 944        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
 945            return;
 946        };
 947
 948        if !panel.focus_handle(cx).contains_focused(cx) {
 949            workspace.toggle_panel_focus::<AssistantPanel>(cx);
 950        }
 951
 952        panel.update(cx, |this, cx| {
 953            this.show_configuration_tab(cx);
 954        })
 955    }
 956
 957    fn show_configuration_tab(&mut self, cx: &mut ViewContext<Self>) {
 958        let configuration_item_ix = self
 959            .pane
 960            .read(cx)
 961            .items()
 962            .position(|item| item.downcast::<ConfigurationView>().is_some());
 963
 964        if let Some(configuration_item_ix) = configuration_item_ix {
 965            self.pane.update(cx, |pane, cx| {
 966                pane.activate_item(configuration_item_ix, true, true, cx);
 967            });
 968        } else {
 969            let configuration = cx.new_view(|cx| ConfigurationView::new(cx));
 970            self.configuration_subscription = Some(cx.subscribe(
 971                &configuration,
 972                |this, _, event: &ConfigurationViewEvent, cx| match event {
 973                    ConfigurationViewEvent::NewProviderContextEditor(provider) => {
 974                        if LanguageModelRegistry::read_global(cx)
 975                            .active_provider()
 976                            .map_or(true, |p| p.id() != provider.id())
 977                        {
 978                            if let Some(model) = provider.provided_models(cx).first().cloned() {
 979                                update_settings_file::<AssistantSettings>(
 980                                    this.fs.clone(),
 981                                    cx,
 982                                    move |settings, _| settings.set_model(model),
 983                                );
 984                            }
 985                        }
 986
 987                        this.new_context(cx);
 988                    }
 989                },
 990            ));
 991            self.pane.update(cx, |pane, cx| {
 992                pane.add_item(Box::new(configuration), true, true, None, cx);
 993            });
 994        }
 995    }
 996
 997    fn deploy_history(&mut self, _: &DeployHistory, cx: &mut ViewContext<Self>) {
 998        let history_item_ix = self
 999            .pane
1000            .read(cx)
1001            .items()
1002            .position(|item| item.downcast::<ContextHistory>().is_some());
1003
1004        if let Some(history_item_ix) = history_item_ix {
1005            self.pane.update(cx, |pane, cx| {
1006                pane.activate_item(history_item_ix, true, true, cx);
1007            });
1008        } else {
1009            let assistant_panel = cx.view().downgrade();
1010            let history = cx.new_view(|cx| {
1011                ContextHistory::new(
1012                    self.project.clone(),
1013                    self.context_store.clone(),
1014                    assistant_panel,
1015                    cx,
1016                )
1017            });
1018            self.pane.update(cx, |pane, cx| {
1019                pane.add_item(Box::new(history), true, true, None, cx);
1020            });
1021        }
1022    }
1023
1024    fn deploy_prompt_library(&mut self, _: &DeployPromptLibrary, cx: &mut ViewContext<Self>) {
1025        open_prompt_library(self.languages.clone(), cx).detach_and_log_err(cx);
1026    }
1027
1028    fn toggle_model_selector(&mut self, _: &ToggleModelSelector, cx: &mut ViewContext<Self>) {
1029        self.model_selector_menu_handle.toggle(cx);
1030    }
1031
1032    fn active_context_editor(&self, cx: &AppContext) -> Option<View<ContextEditor>> {
1033        self.pane
1034            .read(cx)
1035            .active_item()?
1036            .downcast::<ContextEditor>()
1037    }
1038
1039    pub fn active_context(&self, cx: &AppContext) -> Option<Model<Context>> {
1040        Some(self.active_context_editor(cx)?.read(cx).context.clone())
1041    }
1042
1043    fn open_saved_context(
1044        &mut self,
1045        path: PathBuf,
1046        cx: &mut ViewContext<Self>,
1047    ) -> Task<Result<()>> {
1048        let existing_context = self.pane.read(cx).items().find_map(|item| {
1049            item.downcast::<ContextEditor>()
1050                .filter(|editor| editor.read(cx).context.read(cx).path() == Some(&path))
1051        });
1052        if let Some(existing_context) = existing_context {
1053            return cx.spawn(|this, mut cx| async move {
1054                this.update(&mut cx, |this, cx| this.show_context(existing_context, cx))
1055            });
1056        }
1057
1058        let context = self
1059            .context_store
1060            .update(cx, |store, cx| store.open_local_context(path.clone(), cx));
1061        let fs = self.fs.clone();
1062        let project = self.project.clone();
1063        let workspace = self.workspace.clone();
1064
1065        let lsp_adapter_delegate = make_lsp_adapter_delegate(&project, cx).log_err();
1066
1067        cx.spawn(|this, mut cx| async move {
1068            let context = context.await?;
1069            let assistant_panel = this.clone();
1070            this.update(&mut cx, |this, cx| {
1071                let editor = cx.new_view(|cx| {
1072                    ContextEditor::for_context(
1073                        context,
1074                        fs,
1075                        workspace,
1076                        project,
1077                        lsp_adapter_delegate,
1078                        assistant_panel,
1079                        cx,
1080                    )
1081                });
1082                this.show_context(editor, cx);
1083                anyhow::Ok(())
1084            })??;
1085            Ok(())
1086        })
1087    }
1088
1089    fn open_remote_context(
1090        &mut self,
1091        id: ContextId,
1092        cx: &mut ViewContext<Self>,
1093    ) -> Task<Result<View<ContextEditor>>> {
1094        let existing_context = self.pane.read(cx).items().find_map(|item| {
1095            item.downcast::<ContextEditor>()
1096                .filter(|editor| *editor.read(cx).context.read(cx).id() == id)
1097        });
1098        if let Some(existing_context) = existing_context {
1099            return cx.spawn(|this, mut cx| async move {
1100                this.update(&mut cx, |this, cx| {
1101                    this.show_context(existing_context.clone(), cx)
1102                })?;
1103                Ok(existing_context)
1104            });
1105        }
1106
1107        let context = self
1108            .context_store
1109            .update(cx, |store, cx| store.open_remote_context(id, cx));
1110        let fs = self.fs.clone();
1111        let workspace = self.workspace.clone();
1112        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx).log_err();
1113
1114        cx.spawn(|this, mut cx| async move {
1115            let context = context.await?;
1116            let assistant_panel = this.clone();
1117            this.update(&mut cx, |this, cx| {
1118                let editor = cx.new_view(|cx| {
1119                    ContextEditor::for_context(
1120                        context,
1121                        fs,
1122                        workspace,
1123                        this.project.clone(),
1124                        lsp_adapter_delegate,
1125                        assistant_panel,
1126                        cx,
1127                    )
1128                });
1129                this.show_context(editor.clone(), cx);
1130                anyhow::Ok(editor)
1131            })?
1132        })
1133    }
1134
1135    fn is_authenticated(&mut self, cx: &mut ViewContext<Self>) -> bool {
1136        LanguageModelRegistry::read_global(cx)
1137            .active_provider()
1138            .map_or(false, |provider| provider.is_authenticated(cx))
1139    }
1140
1141    fn authenticate(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<()>> {
1142        LanguageModelRegistry::read_global(cx)
1143            .active_provider()
1144            .map_or(
1145                Task::ready(Err(anyhow!("no active language model provider"))),
1146                |provider| provider.authenticate(cx),
1147            )
1148    }
1149}
1150
1151impl Render for AssistantPanel {
1152    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
1153        let mut registrar = DivRegistrar::new(
1154            |panel, cx| {
1155                panel
1156                    .pane
1157                    .read(cx)
1158                    .toolbar()
1159                    .read(cx)
1160                    .item_of_type::<BufferSearchBar>()
1161            },
1162            cx,
1163        );
1164        BufferSearchBar::register(&mut registrar);
1165        let registrar = registrar.into_div();
1166
1167        v_flex()
1168            .key_context("AssistantPanel")
1169            .size_full()
1170            .on_action(cx.listener(|this, _: &workspace::NewFile, cx| {
1171                this.new_context(cx);
1172            }))
1173            .on_action(
1174                cx.listener(|this, _: &ShowConfiguration, cx| this.show_configuration_tab(cx)),
1175            )
1176            .on_action(cx.listener(AssistantPanel::deploy_history))
1177            .on_action(cx.listener(AssistantPanel::deploy_prompt_library))
1178            .on_action(cx.listener(AssistantPanel::toggle_model_selector))
1179            .child(registrar.size_full().child(self.pane.clone()))
1180            .into_any_element()
1181    }
1182}
1183
1184impl Panel for AssistantPanel {
1185    fn persistent_name() -> &'static str {
1186        "AssistantPanel"
1187    }
1188
1189    fn position(&self, cx: &WindowContext) -> DockPosition {
1190        match AssistantSettings::get_global(cx).dock {
1191            AssistantDockPosition::Left => DockPosition::Left,
1192            AssistantDockPosition::Bottom => DockPosition::Bottom,
1193            AssistantDockPosition::Right => DockPosition::Right,
1194        }
1195    }
1196
1197    fn position_is_valid(&self, _: DockPosition) -> bool {
1198        true
1199    }
1200
1201    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
1202        settings::update_settings_file::<AssistantSettings>(
1203            self.fs.clone(),
1204            cx,
1205            move |settings, _| {
1206                let dock = match position {
1207                    DockPosition::Left => AssistantDockPosition::Left,
1208                    DockPosition::Bottom => AssistantDockPosition::Bottom,
1209                    DockPosition::Right => AssistantDockPosition::Right,
1210                };
1211                settings.set_dock(dock);
1212            },
1213        );
1214    }
1215
1216    fn size(&self, cx: &WindowContext) -> Pixels {
1217        let settings = AssistantSettings::get_global(cx);
1218        match self.position(cx) {
1219            DockPosition::Left | DockPosition::Right => {
1220                self.width.unwrap_or(settings.default_width)
1221            }
1222            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1223        }
1224    }
1225
1226    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
1227        match self.position(cx) {
1228            DockPosition::Left | DockPosition::Right => self.width = size,
1229            DockPosition::Bottom => self.height = size,
1230        }
1231        cx.notify();
1232    }
1233
1234    fn is_zoomed(&self, cx: &WindowContext) -> bool {
1235        self.pane.read(cx).is_zoomed()
1236    }
1237
1238    fn set_zoomed(&mut self, zoomed: bool, cx: &mut ViewContext<Self>) {
1239        self.pane.update(cx, |pane, cx| pane.set_zoomed(zoomed, cx));
1240    }
1241
1242    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
1243        if active {
1244            if self.pane.read(cx).items_len() == 0 {
1245                self.new_context(cx);
1246            }
1247
1248            self.ensure_authenticated(cx);
1249        }
1250    }
1251
1252    fn pane(&self) -> Option<View<Pane>> {
1253        Some(self.pane.clone())
1254    }
1255
1256    fn remote_id() -> Option<proto::PanelId> {
1257        Some(proto::PanelId::AssistantPanel)
1258    }
1259
1260    fn icon(&self, cx: &WindowContext) -> Option<IconName> {
1261        let settings = AssistantSettings::get_global(cx);
1262        if !settings.enabled || !settings.button {
1263            return None;
1264        }
1265
1266        Some(IconName::ZedAssistant)
1267    }
1268
1269    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
1270        Some("Assistant Panel")
1271    }
1272
1273    fn toggle_action(&self) -> Box<dyn Action> {
1274        Box::new(ToggleFocus)
1275    }
1276}
1277
1278impl EventEmitter<PanelEvent> for AssistantPanel {}
1279impl EventEmitter<AssistantPanelEvent> for AssistantPanel {}
1280
1281impl FocusableView for AssistantPanel {
1282    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
1283        self.pane.focus_handle(cx)
1284    }
1285}
1286
1287pub enum ContextEditorEvent {
1288    Edited,
1289    TabContentChanged,
1290}
1291
1292#[derive(Copy, Clone, Debug, PartialEq)]
1293struct ScrollPosition {
1294    offset_before_cursor: gpui::Point<f32>,
1295    cursor: Anchor,
1296}
1297
1298struct ActiveEditStep {
1299    start: language::Anchor,
1300    assist_ids: Vec<InlineAssistId>,
1301    editor: Option<WeakView<Editor>>,
1302}
1303
1304pub struct ContextEditor {
1305    context: Model<Context>,
1306    fs: Arc<dyn Fs>,
1307    workspace: WeakView<Workspace>,
1308    project: Model<Project>,
1309    lsp_adapter_delegate: Option<Arc<dyn LspAdapterDelegate>>,
1310    editor: View<Editor>,
1311    blocks: HashSet<CustomBlockId>,
1312    scroll_position: Option<ScrollPosition>,
1313    remote_id: Option<workspace::ViewId>,
1314    pending_slash_command_creases: HashMap<Range<language::Anchor>, CreaseId>,
1315    pending_slash_command_blocks: HashMap<Range<language::Anchor>, CustomBlockId>,
1316    _subscriptions: Vec<Subscription>,
1317    active_edit_step: Option<ActiveEditStep>,
1318    assistant_panel: WeakView<AssistantPanel>,
1319}
1320
1321const DEFAULT_TAB_TITLE: &str = "New Context";
1322const MAX_TAB_TITLE_LEN: usize = 16;
1323
1324impl ContextEditor {
1325    fn for_context(
1326        context: Model<Context>,
1327        fs: Arc<dyn Fs>,
1328        workspace: WeakView<Workspace>,
1329        project: Model<Project>,
1330        lsp_adapter_delegate: Option<Arc<dyn LspAdapterDelegate>>,
1331        assistant_panel: WeakView<AssistantPanel>,
1332        cx: &mut ViewContext<Self>,
1333    ) -> Self {
1334        let completion_provider = SlashCommandCompletionProvider::new(
1335            Some(cx.view().downgrade()),
1336            Some(workspace.clone()),
1337        );
1338
1339        let editor = cx.new_view(|cx| {
1340            let mut editor = Editor::for_buffer(context.read(cx).buffer().clone(), None, cx);
1341            editor.set_soft_wrap_mode(SoftWrap::EditorWidth, cx);
1342            editor.set_show_line_numbers(false, cx);
1343            editor.set_show_git_diff_gutter(false, cx);
1344            editor.set_show_code_actions(false, cx);
1345            editor.set_show_runnables(false, cx);
1346            editor.set_show_wrap_guides(false, cx);
1347            editor.set_show_indent_guides(false, cx);
1348            editor.set_completion_provider(Box::new(completion_provider));
1349            editor.set_collaboration_hub(Box::new(project.clone()));
1350            editor
1351        });
1352
1353        let _subscriptions = vec![
1354            cx.observe(&context, |_, _, cx| cx.notify()),
1355            cx.subscribe(&context, Self::handle_context_event),
1356            cx.subscribe(&editor, Self::handle_editor_event),
1357            cx.subscribe(&editor, Self::handle_editor_search_event),
1358        ];
1359
1360        let sections = context.read(cx).slash_command_output_sections().to_vec();
1361        let mut this = Self {
1362            context,
1363            editor,
1364            lsp_adapter_delegate,
1365            blocks: Default::default(),
1366            scroll_position: None,
1367            remote_id: None,
1368            fs,
1369            workspace,
1370            project,
1371            pending_slash_command_creases: HashMap::default(),
1372            pending_slash_command_blocks: HashMap::default(),
1373            _subscriptions,
1374            active_edit_step: None,
1375            assistant_panel,
1376        };
1377        this.update_message_headers(cx);
1378        this.insert_slash_command_output_sections(sections, cx);
1379        this
1380    }
1381
1382    fn insert_default_prompt(&mut self, cx: &mut ViewContext<Self>) {
1383        let command_name = DefaultSlashCommand.name();
1384        self.editor.update(cx, |editor, cx| {
1385            editor.insert(&format!("/{command_name}"), cx)
1386        });
1387        self.split(&Split, cx);
1388        let command = self.context.update(cx, |context, cx| {
1389            let first_message_id = context.messages(cx).next().unwrap().id;
1390            context.update_metadata(first_message_id, cx, |metadata| {
1391                metadata.role = Role::System;
1392            });
1393            context.reparse_slash_commands(cx);
1394            context.pending_slash_commands()[0].clone()
1395        });
1396
1397        self.run_command(
1398            command.source_range,
1399            &command.name,
1400            command.argument.as_deref(),
1401            false,
1402            self.workspace.clone(),
1403            cx,
1404        );
1405    }
1406
1407    fn assist(&mut self, _: &Assist, cx: &mut ViewContext<Self>) {
1408        if !self.apply_edit_step(cx) {
1409            self.send_to_model(cx);
1410        }
1411    }
1412
1413    fn apply_edit_step(&mut self, cx: &mut ViewContext<Self>) -> bool {
1414        if let Some(step) = self.active_edit_step.as_ref() {
1415            let assist_ids = step.assist_ids.clone();
1416            cx.window_context().defer(|cx| {
1417                InlineAssistant::update_global(cx, |assistant, cx| {
1418                    for assist_id in assist_ids {
1419                        assistant.start_assist(assist_id, cx);
1420                    }
1421                })
1422            });
1423
1424            !step.assist_ids.is_empty()
1425        } else {
1426            false
1427        }
1428    }
1429
1430    fn send_to_model(&mut self, cx: &mut ViewContext<Self>) {
1431        if let Some(user_message) = self.context.update(cx, |context, cx| context.assist(cx)) {
1432            let new_selection = {
1433                let cursor = user_message
1434                    .start
1435                    .to_offset(self.context.read(cx).buffer().read(cx));
1436                cursor..cursor
1437            };
1438            self.editor.update(cx, |editor, cx| {
1439                editor.change_selections(
1440                    Some(Autoscroll::Strategy(AutoscrollStrategy::Fit)),
1441                    cx,
1442                    |selections| selections.select_ranges([new_selection]),
1443                );
1444            });
1445            // Avoid scrolling to the new cursor position so the assistant's output is stable.
1446            cx.defer(|this, _| this.scroll_position = None);
1447        }
1448    }
1449
1450    fn cancel_last_assist(&mut self, _: &editor::actions::Cancel, cx: &mut ViewContext<Self>) {
1451        if !self
1452            .context
1453            .update(cx, |context, _| context.cancel_last_assist())
1454        {
1455            cx.propagate();
1456        }
1457    }
1458
1459    fn debug_edit_steps(&mut self, _: &DebugEditSteps, cx: &mut ViewContext<Self>) {
1460        let mut output = String::new();
1461        for (i, step) in self.context.read(cx).edit_steps().iter().enumerate() {
1462            output.push_str(&format!("Step {}:\n", i + 1));
1463            output.push_str(&format!(
1464                "Content: {}\n",
1465                self.context
1466                    .read(cx)
1467                    .buffer()
1468                    .read(cx)
1469                    .text_for_range(step.tagged_range.clone())
1470                    .collect::<String>()
1471            ));
1472            match &step.edit_suggestions {
1473                WorkflowStepEditSuggestions::Resolved {
1474                    title,
1475                    edit_suggestions,
1476                } => {
1477                    output.push_str("Resolution:\n");
1478                    output.push_str(&format!("  {:?}\n", title));
1479                    output.push_str(&format!("  {:?}\n", edit_suggestions));
1480                }
1481                WorkflowStepEditSuggestions::Pending(_) => {
1482                    output.push_str("Resolution: Pending\n");
1483                }
1484            }
1485            output.push('\n');
1486        }
1487
1488        let editor = self
1489            .workspace
1490            .update(cx, |workspace, cx| Editor::new_in_workspace(workspace, cx));
1491
1492        if let Ok(editor) = editor {
1493            cx.spawn(|_, mut cx| async move {
1494                let editor = editor.await?;
1495                editor.update(&mut cx, |editor, cx| editor.set_text(output, cx))
1496            })
1497            .detach_and_notify_err(cx);
1498        }
1499    }
1500
1501    fn cycle_message_role(&mut self, _: &CycleMessageRole, cx: &mut ViewContext<Self>) {
1502        let cursors = self.cursors(cx);
1503        self.context.update(cx, |context, cx| {
1504            let messages = context
1505                .messages_for_offsets(cursors, cx)
1506                .into_iter()
1507                .map(|message| message.id)
1508                .collect();
1509            context.cycle_message_roles(messages, cx)
1510        });
1511    }
1512
1513    fn cursors(&self, cx: &AppContext) -> Vec<usize> {
1514        let selections = self.editor.read(cx).selections.all::<usize>(cx);
1515        selections
1516            .into_iter()
1517            .map(|selection| selection.head())
1518            .collect()
1519    }
1520
1521    fn insert_command(&mut self, name: &str, cx: &mut ViewContext<Self>) {
1522        if let Some(command) = SlashCommandRegistry::global(cx).command(name) {
1523            self.editor.update(cx, |editor, cx| {
1524                editor.transact(cx, |editor, cx| {
1525                    editor.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel());
1526                    let snapshot = editor.buffer().read(cx).snapshot(cx);
1527                    let newest_cursor = editor.selections.newest::<Point>(cx).head();
1528                    if newest_cursor.column > 0
1529                        || snapshot
1530                            .chars_at(newest_cursor)
1531                            .next()
1532                            .map_or(false, |ch| ch != '\n')
1533                    {
1534                        editor.move_to_end_of_line(
1535                            &MoveToEndOfLine {
1536                                stop_at_soft_wraps: false,
1537                            },
1538                            cx,
1539                        );
1540                        editor.newline(&Newline, cx);
1541                    }
1542
1543                    editor.insert(&format!("/{name}"), cx);
1544                    if command.requires_argument() {
1545                        editor.insert(" ", cx);
1546                        editor.show_completions(&ShowCompletions::default(), cx);
1547                    }
1548                });
1549            });
1550            if !command.requires_argument() {
1551                self.confirm_command(&ConfirmCommand, cx);
1552            }
1553        }
1554    }
1555
1556    pub fn confirm_command(&mut self, _: &ConfirmCommand, cx: &mut ViewContext<Self>) {
1557        let selections = self.editor.read(cx).selections.disjoint_anchors();
1558        let mut commands_by_range = HashMap::default();
1559        let workspace = self.workspace.clone();
1560        self.context.update(cx, |context, cx| {
1561            context.reparse_slash_commands(cx);
1562            for selection in selections.iter() {
1563                if let Some(command) =
1564                    context.pending_command_for_position(selection.head().text_anchor, cx)
1565                {
1566                    commands_by_range
1567                        .entry(command.source_range.clone())
1568                        .or_insert_with(|| command.clone());
1569                }
1570            }
1571        });
1572
1573        if commands_by_range.is_empty() {
1574            cx.propagate();
1575        } else {
1576            for command in commands_by_range.into_values() {
1577                self.run_command(
1578                    command.source_range,
1579                    &command.name,
1580                    command.argument.as_deref(),
1581                    true,
1582                    workspace.clone(),
1583                    cx,
1584                );
1585            }
1586            cx.stop_propagation();
1587        }
1588    }
1589
1590    pub fn run_command(
1591        &mut self,
1592        command_range: Range<language::Anchor>,
1593        name: &str,
1594        argument: Option<&str>,
1595        insert_trailing_newline: bool,
1596        workspace: WeakView<Workspace>,
1597        cx: &mut ViewContext<Self>,
1598    ) {
1599        if let Some(command) = SlashCommandRegistry::global(cx).command(name) {
1600            let argument = argument.map(ToString::to_string);
1601            let output = command.run(
1602                argument.as_deref(),
1603                workspace,
1604                self.lsp_adapter_delegate.clone(),
1605                cx,
1606            );
1607            self.context.update(cx, |context, cx| {
1608                context.insert_command_output(command_range, output, insert_trailing_newline, cx)
1609            });
1610        }
1611    }
1612
1613    fn handle_context_event(
1614        &mut self,
1615        _: Model<Context>,
1616        event: &ContextEvent,
1617        cx: &mut ViewContext<Self>,
1618    ) {
1619        let context_editor = cx.view().downgrade();
1620
1621        match event {
1622            ContextEvent::MessagesEdited => {
1623                self.update_message_headers(cx);
1624                self.context.update(cx, |context, cx| {
1625                    context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
1626                });
1627            }
1628            ContextEvent::EditStepsChanged => {
1629                cx.notify();
1630            }
1631            ContextEvent::SummaryChanged => {
1632                cx.emit(EditorEvent::TitleChanged);
1633                self.context.update(cx, |context, cx| {
1634                    context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx);
1635                });
1636            }
1637            ContextEvent::StreamedCompletion => {
1638                self.editor.update(cx, |editor, cx| {
1639                    if let Some(scroll_position) = self.scroll_position {
1640                        let snapshot = editor.snapshot(cx);
1641                        let cursor_point = scroll_position.cursor.to_display_point(&snapshot);
1642                        let scroll_top =
1643                            cursor_point.row().as_f32() - scroll_position.offset_before_cursor.y;
1644                        editor.set_scroll_position(
1645                            point(scroll_position.offset_before_cursor.x, scroll_top),
1646                            cx,
1647                        );
1648                    }
1649                });
1650            }
1651            ContextEvent::PendingSlashCommandsUpdated { removed, updated } => {
1652                self.editor.update(cx, |editor, cx| {
1653                    let buffer = editor.buffer().read(cx).snapshot(cx);
1654                    let (excerpt_id, buffer_id, _) = buffer.as_singleton().unwrap();
1655                    let excerpt_id = *excerpt_id;
1656
1657                    editor.remove_creases(
1658                        removed
1659                            .iter()
1660                            .filter_map(|range| self.pending_slash_command_creases.remove(range)),
1661                        cx,
1662                    );
1663
1664                    editor.remove_blocks(
1665                        HashSet::from_iter(
1666                            removed.iter().filter_map(|range| {
1667                                self.pending_slash_command_blocks.remove(range)
1668                            }),
1669                        ),
1670                        None,
1671                        cx,
1672                    );
1673
1674                    let crease_ids = editor.insert_creases(
1675                        updated.iter().map(|command| {
1676                            let workspace = self.workspace.clone();
1677                            let confirm_command = Arc::new({
1678                                let context_editor = context_editor.clone();
1679                                let command = command.clone();
1680                                move |cx: &mut WindowContext| {
1681                                    context_editor
1682                                        .update(cx, |context_editor, cx| {
1683                                            context_editor.run_command(
1684                                                command.source_range.clone(),
1685                                                &command.name,
1686                                                command.argument.as_deref(),
1687                                                false,
1688                                                workspace.clone(),
1689                                                cx,
1690                                            );
1691                                        })
1692                                        .ok();
1693                                }
1694                            });
1695                            let placeholder = FoldPlaceholder {
1696                                render: Arc::new(move |_, _, _| Empty.into_any()),
1697                                constrain_width: false,
1698                                merge_adjacent: false,
1699                            };
1700                            let render_toggle = {
1701                                let confirm_command = confirm_command.clone();
1702                                let command = command.clone();
1703                                move |row, _, _, _cx: &mut WindowContext| {
1704                                    render_pending_slash_command_gutter_decoration(
1705                                        row,
1706                                        &command.status,
1707                                        confirm_command.clone(),
1708                                    )
1709                                }
1710                            };
1711                            let render_trailer = {
1712                                let command = command.clone();
1713                                move |row, _unfold, cx: &mut WindowContext| {
1714                                    // TODO: In the future we should investigate how we can expose
1715                                    // this as a hook on the `SlashCommand` trait so that we don't
1716                                    // need to special-case it here.
1717                                    if command.name == DocsSlashCommand::NAME {
1718                                        return render_docs_slash_command_trailer(
1719                                            row,
1720                                            command.clone(),
1721                                            cx,
1722                                        );
1723                                    }
1724
1725                                    Empty.into_any()
1726                                }
1727                            };
1728
1729                            let start = buffer
1730                                .anchor_in_excerpt(excerpt_id, command.source_range.start)
1731                                .unwrap();
1732                            let end = buffer
1733                                .anchor_in_excerpt(excerpt_id, command.source_range.end)
1734                                .unwrap();
1735                            Crease::new(start..end, placeholder, render_toggle, render_trailer)
1736                        }),
1737                        cx,
1738                    );
1739
1740                    let block_ids = editor.insert_blocks(
1741                        updated
1742                            .iter()
1743                            .filter_map(|command| match &command.status {
1744                                PendingSlashCommandStatus::Error(error) => {
1745                                    Some((command, error.clone()))
1746                                }
1747                                _ => None,
1748                            })
1749                            .map(|(command, error_message)| BlockProperties {
1750                                style: BlockStyle::Fixed,
1751                                position: Anchor {
1752                                    buffer_id: Some(buffer_id),
1753                                    excerpt_id,
1754                                    text_anchor: command.source_range.start,
1755                                },
1756                                height: 1,
1757                                disposition: BlockDisposition::Below,
1758                                render: slash_command_error_block_renderer(error_message),
1759                            }),
1760                        None,
1761                        cx,
1762                    );
1763
1764                    self.pending_slash_command_creases.extend(
1765                        updated
1766                            .iter()
1767                            .map(|command| command.source_range.clone())
1768                            .zip(crease_ids),
1769                    );
1770
1771                    self.pending_slash_command_blocks.extend(
1772                        updated
1773                            .iter()
1774                            .map(|command| command.source_range.clone())
1775                            .zip(block_ids),
1776                    );
1777                })
1778            }
1779            ContextEvent::SlashCommandFinished {
1780                output_range,
1781                sections,
1782                run_commands_in_output,
1783            } => {
1784                self.insert_slash_command_output_sections(sections.iter().cloned(), cx);
1785
1786                if *run_commands_in_output {
1787                    let commands = self.context.update(cx, |context, cx| {
1788                        context.reparse_slash_commands(cx);
1789                        context
1790                            .pending_commands_for_range(output_range.clone(), cx)
1791                            .to_vec()
1792                    });
1793
1794                    for command in commands {
1795                        self.run_command(
1796                            command.source_range,
1797                            &command.name,
1798                            command.argument.as_deref(),
1799                            false,
1800                            self.workspace.clone(),
1801                            cx,
1802                        );
1803                    }
1804                }
1805            }
1806            ContextEvent::Operation(_) => {}
1807        }
1808    }
1809
1810    fn insert_slash_command_output_sections(
1811        &mut self,
1812        sections: impl IntoIterator<Item = SlashCommandOutputSection<language::Anchor>>,
1813        cx: &mut ViewContext<Self>,
1814    ) {
1815        self.editor.update(cx, |editor, cx| {
1816            let buffer = editor.buffer().read(cx).snapshot(cx);
1817            let excerpt_id = *buffer.as_singleton().unwrap().0;
1818            let mut buffer_rows_to_fold = BTreeSet::new();
1819            let mut creases = Vec::new();
1820            for section in sections {
1821                let start = buffer
1822                    .anchor_in_excerpt(excerpt_id, section.range.start)
1823                    .unwrap();
1824                let end = buffer
1825                    .anchor_in_excerpt(excerpt_id, section.range.end)
1826                    .unwrap();
1827                let buffer_row = MultiBufferRow(start.to_point(&buffer).row);
1828                buffer_rows_to_fold.insert(buffer_row);
1829                creases.push(Crease::new(
1830                    start..end,
1831                    FoldPlaceholder {
1832                        render: Arc::new({
1833                            let editor = cx.view().downgrade();
1834                            let icon = section.icon;
1835                            let label = section.label.clone();
1836                            move |fold_id, fold_range, _cx| {
1837                                let editor = editor.clone();
1838                                ButtonLike::new(fold_id)
1839                                    .style(ButtonStyle::Filled)
1840                                    .layer(ElevationIndex::ElevatedSurface)
1841                                    .child(Icon::new(icon))
1842                                    .child(Label::new(label.clone()).single_line())
1843                                    .on_click(move |_, cx| {
1844                                        editor
1845                                            .update(cx, |editor, cx| {
1846                                                let buffer_start = fold_range
1847                                                    .start
1848                                                    .to_point(&editor.buffer().read(cx).read(cx));
1849                                                let buffer_row = MultiBufferRow(buffer_start.row);
1850                                                editor.unfold_at(&UnfoldAt { buffer_row }, cx);
1851                                            })
1852                                            .ok();
1853                                    })
1854                                    .into_any_element()
1855                            }
1856                        }),
1857                        constrain_width: false,
1858                        merge_adjacent: false,
1859                    },
1860                    render_slash_command_output_toggle,
1861                    |_, _, _| Empty.into_any_element(),
1862                ));
1863            }
1864
1865            editor.insert_creases(creases, cx);
1866
1867            for buffer_row in buffer_rows_to_fold.into_iter().rev() {
1868                editor.fold_at(&FoldAt { buffer_row }, cx);
1869            }
1870        });
1871    }
1872
1873    fn handle_editor_event(
1874        &mut self,
1875        _: View<Editor>,
1876        event: &EditorEvent,
1877        cx: &mut ViewContext<Self>,
1878    ) {
1879        match event {
1880            EditorEvent::ScrollPositionChanged { autoscroll, .. } => {
1881                let cursor_scroll_position = self.cursor_scroll_position(cx);
1882                if *autoscroll {
1883                    self.scroll_position = cursor_scroll_position;
1884                } else if self.scroll_position != cursor_scroll_position {
1885                    self.scroll_position = None;
1886                }
1887            }
1888            EditorEvent::SelectionsChanged { .. } => {
1889                self.scroll_position = self.cursor_scroll_position(cx);
1890                self.update_active_workflow_step(cx);
1891            }
1892            _ => {}
1893        }
1894        cx.emit(event.clone());
1895    }
1896
1897    fn update_active_workflow_step(&mut self, cx: &mut ViewContext<Self>) {
1898        if self
1899            .workflow_step_for_cursor(cx)
1900            .map(|step| step.tagged_range.start)
1901            != self.active_edit_step.as_ref().map(|step| step.start)
1902        {
1903            if let Some(old_active_edit_step) = self.active_edit_step.take() {
1904                if let Some(editor) = old_active_edit_step
1905                    .editor
1906                    .and_then(|editor| editor.upgrade())
1907                {
1908                    self.workspace
1909                        .update(cx, |workspace, cx| {
1910                            if let Some(pane) = workspace.pane_for(&editor) {
1911                                pane.update(cx, |pane, cx| {
1912                                    let item_id = editor.entity_id();
1913                                    if pane.is_active_preview_item(item_id) {
1914                                        pane.close_item_by_id(item_id, SaveIntent::Skip, cx)
1915                                            .detach_and_log_err(cx);
1916                                    }
1917                                });
1918                            }
1919                        })
1920                        .ok();
1921                }
1922            }
1923
1924            if let Some(new_active_step) = self.workflow_step_for_cursor(cx) {
1925                let start = new_active_step.tagged_range.start;
1926
1927                let mut editor = None;
1928                let mut assist_ids = Vec::new();
1929                if let WorkflowStepEditSuggestions::Resolved {
1930                    title,
1931                    edit_suggestions,
1932                } = &new_active_step.edit_suggestions
1933                {
1934                    if let Some((opened_editor, inline_assist_ids)) =
1935                        self.suggest_edits(title.clone(), edit_suggestions.clone(), cx)
1936                    {
1937                        editor = Some(opened_editor.downgrade());
1938                        assist_ids = inline_assist_ids;
1939                    }
1940                }
1941
1942                self.active_edit_step = Some(ActiveEditStep {
1943                    start,
1944                    assist_ids,
1945                    editor,
1946                });
1947            }
1948        }
1949    }
1950
1951    fn suggest_edits(
1952        &mut self,
1953        title: String,
1954        edit_suggestions: HashMap<Model<Buffer>, Vec<EditSuggestionGroup>>,
1955        cx: &mut ViewContext<Self>,
1956    ) -> Option<(View<Editor>, Vec<InlineAssistId>)> {
1957        let assistant_panel = self.assistant_panel.upgrade()?;
1958        if edit_suggestions.is_empty() {
1959            return None;
1960        }
1961
1962        let editor;
1963        let mut suggestion_groups = Vec::new();
1964        if edit_suggestions.len() == 1 && edit_suggestions.values().next().unwrap().len() == 1 {
1965            // If there's only one buffer and one suggestion group, open it directly
1966            let (buffer, groups) = edit_suggestions.into_iter().next().unwrap();
1967            let group = groups.into_iter().next().unwrap();
1968            editor = self
1969                .workspace
1970                .update(cx, |workspace, cx| {
1971                    let active_pane = workspace.active_pane().clone();
1972                    workspace.open_project_item::<Editor>(active_pane, buffer, false, false, cx)
1973                })
1974                .log_err()?;
1975
1976            let (&excerpt_id, _, _) = editor
1977                .read(cx)
1978                .buffer()
1979                .read(cx)
1980                .read(cx)
1981                .as_singleton()
1982                .unwrap();
1983
1984            // Scroll the editor to the suggested assist
1985            editor.update(cx, |editor, cx| {
1986                let multibuffer = editor.buffer().read(cx).snapshot(cx);
1987                let (&excerpt_id, _, buffer) = multibuffer.as_singleton().unwrap();
1988                let anchor = if group.context_range.start.to_offset(buffer) == 0 {
1989                    Anchor::min()
1990                } else {
1991                    multibuffer
1992                        .anchor_in_excerpt(excerpt_id, group.context_range.start)
1993                        .unwrap()
1994                };
1995
1996                editor.set_scroll_anchor(
1997                    ScrollAnchor {
1998                        offset: gpui::Point::default(),
1999                        anchor,
2000                    },
2001                    cx,
2002                );
2003            });
2004
2005            suggestion_groups.push((excerpt_id, group));
2006        } else {
2007            // If there are multiple buffers or suggestion groups, create a multibuffer
2008            let multibuffer = cx.new_model(|cx| {
2009                let replica_id = self.project.read(cx).replica_id();
2010                let mut multibuffer =
2011                    MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
2012                for (buffer, groups) in edit_suggestions {
2013                    let excerpt_ids = multibuffer.push_excerpts(
2014                        buffer,
2015                        groups.iter().map(|suggestion_group| ExcerptRange {
2016                            context: suggestion_group.context_range.clone(),
2017                            primary: None,
2018                        }),
2019                        cx,
2020                    );
2021                    suggestion_groups.extend(excerpt_ids.into_iter().zip(groups));
2022                }
2023                multibuffer
2024            });
2025
2026            editor = cx.new_view(|cx| {
2027                Editor::for_multibuffer(multibuffer, Some(self.project.clone()), true, cx)
2028            });
2029            self.workspace
2030                .update(cx, |workspace, cx| {
2031                    workspace.add_item_to_active_pane(Box::new(editor.clone()), None, false, cx)
2032                })
2033                .log_err()?;
2034        }
2035
2036        let mut assist_ids = Vec::new();
2037        for (excerpt_id, suggestion_group) in suggestion_groups {
2038            for suggestion in suggestion_group.suggestions {
2039                assist_ids.extend(suggestion.show(
2040                    &editor,
2041                    excerpt_id,
2042                    &self.workspace,
2043                    &assistant_panel,
2044                    cx,
2045                ));
2046            }
2047        }
2048        Some((editor, assist_ids))
2049    }
2050
2051    fn handle_editor_search_event(
2052        &mut self,
2053        _: View<Editor>,
2054        event: &SearchEvent,
2055        cx: &mut ViewContext<Self>,
2056    ) {
2057        cx.emit(event.clone());
2058    }
2059
2060    fn cursor_scroll_position(&self, cx: &mut ViewContext<Self>) -> Option<ScrollPosition> {
2061        self.editor.update(cx, |editor, cx| {
2062            let snapshot = editor.snapshot(cx);
2063            let cursor = editor.selections.newest_anchor().head();
2064            let cursor_row = cursor
2065                .to_display_point(&snapshot.display_snapshot)
2066                .row()
2067                .as_f32();
2068            let scroll_position = editor
2069                .scroll_manager
2070                .anchor()
2071                .scroll_position(&snapshot.display_snapshot);
2072
2073            let scroll_bottom = scroll_position.y + editor.visible_line_count().unwrap_or(0.);
2074            if (scroll_position.y..scroll_bottom).contains(&cursor_row) {
2075                Some(ScrollPosition {
2076                    cursor,
2077                    offset_before_cursor: point(scroll_position.x, cursor_row - scroll_position.y),
2078                })
2079            } else {
2080                None
2081            }
2082        })
2083    }
2084
2085    fn update_message_headers(&mut self, cx: &mut ViewContext<Self>) {
2086        self.editor.update(cx, |editor, cx| {
2087            let buffer = editor.buffer().read(cx).snapshot(cx);
2088            let excerpt_id = *buffer.as_singleton().unwrap().0;
2089            let old_blocks = std::mem::take(&mut self.blocks);
2090            let new_blocks = self
2091                .context
2092                .read(cx)
2093                .messages(cx)
2094                .map(|message| BlockProperties {
2095                    position: buffer
2096                        .anchor_in_excerpt(excerpt_id, message.anchor)
2097                        .unwrap(),
2098                    height: 2,
2099                    style: BlockStyle::Sticky,
2100                    render: Box::new({
2101                        let context = self.context.clone();
2102                        move |cx| {
2103                            let message_id = message.id;
2104                            let sender = ButtonLike::new("role")
2105                                .style(ButtonStyle::Filled)
2106                                .child(match message.role {
2107                                    Role::User => Label::new("You").color(Color::Default),
2108                                    Role::Assistant => Label::new("Assistant").color(Color::Info),
2109                                    Role::System => Label::new("System").color(Color::Warning),
2110                                })
2111                                .tooltip(|cx| {
2112                                    Tooltip::with_meta(
2113                                        "Toggle message role",
2114                                        None,
2115                                        "Available roles: You (User), Assistant, System",
2116                                        cx,
2117                                    )
2118                                })
2119                                .on_click({
2120                                    let context = context.clone();
2121                                    move |_, cx| {
2122                                        context.update(cx, |context, cx| {
2123                                            context.cycle_message_roles(
2124                                                HashSet::from_iter(Some(message_id)),
2125                                                cx,
2126                                            )
2127                                        })
2128                                    }
2129                                });
2130
2131                            h_flex()
2132                                .id(("message_header", message_id.as_u64()))
2133                                .pl(cx.gutter_dimensions.full_width())
2134                                .h_11()
2135                                .w_full()
2136                                .relative()
2137                                .gap_1()
2138                                .child(sender)
2139                                .children(
2140                                    if let MessageStatus::Error(error) = message.status.clone() {
2141                                        Some(
2142                                            div()
2143                                                .id("error")
2144                                                .tooltip(move |cx| Tooltip::text(error.clone(), cx))
2145                                                .child(Icon::new(IconName::XCircle)),
2146                                        )
2147                                    } else {
2148                                        None
2149                                    },
2150                                )
2151                                .into_any_element()
2152                        }
2153                    }),
2154                    disposition: BlockDisposition::Above,
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.blocks = HashSet::from_iter(ids);
2161        });
2162    }
2163
2164    fn insert_selection(
2165        workspace: &mut Workspace,
2166        _: &InsertIntoEditor,
2167        cx: &mut ViewContext<Workspace>,
2168    ) {
2169        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2170            return;
2171        };
2172        let Some(context_editor_view) = panel.read(cx).active_context_editor(cx) else {
2173            return;
2174        };
2175        let Some(active_editor_view) = workspace
2176            .active_item(cx)
2177            .and_then(|item| item.act_as::<Editor>(cx))
2178        else {
2179            return;
2180        };
2181
2182        let context_editor = context_editor_view.read(cx).editor.read(cx);
2183        let anchor = context_editor.selections.newest_anchor();
2184        let text = context_editor
2185            .buffer()
2186            .read(cx)
2187            .read(cx)
2188            .text_for_range(anchor.range())
2189            .collect::<String>();
2190
2191        // If nothing is selected, don't delete the current selection; instead, be a no-op.
2192        if !text.is_empty() {
2193            active_editor_view.update(cx, |editor, cx| {
2194                editor.insert(&text, cx);
2195                editor.focus(cx);
2196            })
2197        }
2198    }
2199
2200    fn quote_selection(
2201        workspace: &mut Workspace,
2202        _: &QuoteSelection,
2203        cx: &mut ViewContext<Workspace>,
2204    ) {
2205        let Some(panel) = workspace.panel::<AssistantPanel>(cx) else {
2206            return;
2207        };
2208        let Some(editor) = workspace
2209            .active_item(cx)
2210            .and_then(|item| item.act_as::<Editor>(cx))
2211        else {
2212            return;
2213        };
2214
2215        let selection = editor.update(cx, |editor, cx| editor.selections.newest_adjusted(cx));
2216        let editor = editor.read(cx);
2217        let buffer = editor.buffer().read(cx).snapshot(cx);
2218        let range = editor::ToOffset::to_offset(&selection.start, &buffer)
2219            ..editor::ToOffset::to_offset(&selection.end, &buffer);
2220        let start_language = buffer.language_at(range.start);
2221        let end_language = buffer.language_at(range.end);
2222        let language_name = if start_language == end_language {
2223            start_language.map(|language| language.code_fence_block_name())
2224        } else {
2225            None
2226        };
2227        let language_name = language_name.as_deref().unwrap_or("");
2228
2229        let selected_text = buffer.text_for_range(range).collect::<String>();
2230        let text = if selected_text.is_empty() {
2231            None
2232        } else {
2233            Some(if language_name == "markdown" {
2234                selected_text
2235                    .lines()
2236                    .map(|line| format!("> {}", line))
2237                    .collect::<Vec<_>>()
2238                    .join("\n")
2239            } else {
2240                format!("```{language_name}\n{selected_text}\n```")
2241            })
2242        };
2243
2244        // Activate the panel
2245        if !panel.focus_handle(cx).contains_focused(cx) {
2246            workspace.toggle_panel_focus::<AssistantPanel>(cx);
2247        }
2248
2249        if let Some(text) = text {
2250            panel.update(cx, |_, cx| {
2251                // Wait to create a new context until the workspace is no longer
2252                // being updated.
2253                cx.defer(move |panel, cx| {
2254                    if let Some(context) = panel
2255                        .active_context_editor(cx)
2256                        .or_else(|| panel.new_context(cx))
2257                    {
2258                        context.update(cx, |context, cx| {
2259                            context
2260                                .editor
2261                                .update(cx, |editor, cx| editor.insert(&text, cx))
2262                        });
2263                    };
2264                });
2265            });
2266        }
2267    }
2268
2269    fn copy(&mut self, _: &editor::actions::Copy, cx: &mut ViewContext<Self>) {
2270        let editor = self.editor.read(cx);
2271        let context = self.context.read(cx);
2272        if editor.selections.count() == 1 {
2273            let selection = editor.selections.newest::<usize>(cx);
2274            let mut copied_text = String::new();
2275            let mut spanned_messages = 0;
2276            for message in context.messages(cx) {
2277                if message.offset_range.start >= selection.range().end {
2278                    break;
2279                } else if message.offset_range.end >= selection.range().start {
2280                    let range = cmp::max(message.offset_range.start, selection.range().start)
2281                        ..cmp::min(message.offset_range.end, selection.range().end);
2282                    if !range.is_empty() {
2283                        spanned_messages += 1;
2284                        write!(&mut copied_text, "## {}\n\n", message.role).unwrap();
2285                        for chunk in context.buffer().read(cx).text_for_range(range) {
2286                            copied_text.push_str(chunk);
2287                        }
2288                        copied_text.push('\n');
2289                    }
2290                }
2291            }
2292
2293            if spanned_messages > 1 {
2294                cx.write_to_clipboard(ClipboardItem::new(copied_text));
2295                return;
2296            }
2297        }
2298
2299        cx.propagate();
2300    }
2301
2302    fn split(&mut self, _: &Split, cx: &mut ViewContext<Self>) {
2303        self.context.update(cx, |context, cx| {
2304            let selections = self.editor.read(cx).selections.disjoint_anchors();
2305            for selection in selections.as_ref() {
2306                let buffer = self.editor.read(cx).buffer().read(cx).snapshot(cx);
2307                let range = selection
2308                    .map(|endpoint| endpoint.to_offset(&buffer))
2309                    .range();
2310                context.split_message(range, cx);
2311            }
2312        });
2313    }
2314
2315    fn save(&mut self, _: &Save, cx: &mut ViewContext<Self>) {
2316        self.context.update(cx, |context, cx| {
2317            context.save(Some(Duration::from_millis(500)), self.fs.clone(), cx)
2318        });
2319    }
2320
2321    fn title(&self, cx: &AppContext) -> Cow<str> {
2322        self.context
2323            .read(cx)
2324            .summary()
2325            .map(|summary| summary.text.clone())
2326            .map(Cow::Owned)
2327            .unwrap_or_else(|| Cow::Borrowed(DEFAULT_TAB_TITLE))
2328    }
2329
2330    fn render_notice(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2331        let nudge = self
2332            .assistant_panel
2333            .upgrade()
2334            .map(|assistant_panel| assistant_panel.read(cx).show_zed_ai_notice);
2335
2336        if nudge.unwrap_or(false) {
2337            Some(
2338                v_flex()
2339                    .elevation_3(cx)
2340                    .p_4()
2341                    .gap_2()
2342                    .child(Label::new("Use Zed AI"))
2343                    .child(
2344                        div()
2345                            .id("sign-in")
2346                            .child(Label::new("Sign in to use Zed AI"))
2347                            .cursor_pointer()
2348                            .on_click(cx.listener(|this, _event, cx| {
2349                                let client = this
2350                                    .workspace
2351                                    .update(cx, |workspace, _| workspace.client().clone())
2352                                    .log_err();
2353
2354                                if let Some(client) = client {
2355                                    cx.spawn(|this, mut cx| async move {
2356                                        client.authenticate_and_connect(true, &mut cx).await?;
2357                                        this.update(&mut cx, |_, cx| cx.notify())
2358                                    })
2359                                    .detach_and_log_err(cx)
2360                                }
2361                            })),
2362                    ),
2363            )
2364        } else if let Some(configuration_error) = configuration_error(cx) {
2365            let label = match configuration_error {
2366                ConfigurationError::NoProvider => "No provider configured",
2367                ConfigurationError::ProviderNotAuthenticated => "Provider is not configured",
2368            };
2369            Some(
2370                v_flex()
2371                    .elevation_3(cx)
2372                    .p_4()
2373                    .gap_2()
2374                    .child(Label::new(label))
2375                    .child(
2376                        div()
2377                            .id("open-configuration")
2378                            .child(Label::new("Open configuration"))
2379                            .cursor_pointer()
2380                            .on_click({
2381                                let focus_handle = self.focus_handle(cx).clone();
2382                                move |_event, cx| {
2383                                    focus_handle.dispatch_action(&ShowConfiguration, cx);
2384                                }
2385                            }),
2386                    ),
2387            )
2388        } else {
2389            None
2390        }
2391    }
2392
2393    fn render_send_button(&self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2394        let focus_handle = self.focus_handle(cx).clone();
2395        let button_text = match self.workflow_step_for_cursor(cx) {
2396            Some(edit_step) => match &edit_step.edit_suggestions {
2397                WorkflowStepEditSuggestions::Pending(_) => "Computing Changes...",
2398                WorkflowStepEditSuggestions::Resolved { .. } => "Apply Changes",
2399            },
2400            None => "Send",
2401        };
2402
2403        let (style, tooltip) = match token_state(&self.context, cx) {
2404            Some(TokenState::NoTokensLeft { .. }) => (
2405                ButtonStyle::Tinted(TintColor::Negative),
2406                Some(Tooltip::text("Token limit reached", cx)),
2407            ),
2408            Some(TokenState::HasMoreTokens {
2409                over_warn_threshold,
2410                ..
2411            }) => {
2412                let (style, tooltip) = if over_warn_threshold {
2413                    (
2414                        ButtonStyle::Tinted(TintColor::Warning),
2415                        Some(Tooltip::text("Token limit is close to exhaustion", cx)),
2416                    )
2417                } else {
2418                    (ButtonStyle::Filled, None)
2419                };
2420                (style, tooltip)
2421            }
2422            None => (ButtonStyle::Filled, None),
2423        };
2424
2425        ButtonLike::new("send_button")
2426            .style(style)
2427            .when_some(tooltip, |button, tooltip| {
2428                button.tooltip(move |_| tooltip.clone())
2429            })
2430            .layer(ElevationIndex::ModalSurface)
2431            .children(
2432                KeyBinding::for_action_in(&Assist, &focus_handle, cx)
2433                    .map(|binding| binding.into_any_element()),
2434            )
2435            .child(Label::new(button_text))
2436            .on_click(move |_event, cx| {
2437                focus_handle.dispatch_action(&Assist, cx);
2438            })
2439    }
2440
2441    fn workflow_step_for_cursor<'a>(&'a self, cx: &'a AppContext) -> Option<&'a WorkflowStep> {
2442        let newest_cursor = self
2443            .editor
2444            .read(cx)
2445            .selections
2446            .newest_anchor()
2447            .head()
2448            .text_anchor;
2449        let context = self.context.read(cx);
2450        let buffer = context.buffer().read(cx);
2451
2452        let edit_steps = context.edit_steps();
2453        edit_steps
2454            .binary_search_by(|step| {
2455                let step_range = step.tagged_range.clone();
2456                if newest_cursor.cmp(&step_range.start, buffer).is_lt() {
2457                    Ordering::Greater
2458                } else if newest_cursor.cmp(&step_range.end, buffer).is_gt() {
2459                    Ordering::Less
2460                } else {
2461                    Ordering::Equal
2462                }
2463            })
2464            .ok()
2465            .map(|index| &edit_steps[index])
2466    }
2467}
2468
2469impl EventEmitter<EditorEvent> for ContextEditor {}
2470impl EventEmitter<SearchEvent> for ContextEditor {}
2471
2472impl Render for ContextEditor {
2473    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2474        div()
2475            .key_context("ContextEditor")
2476            .capture_action(cx.listener(ContextEditor::cancel_last_assist))
2477            .capture_action(cx.listener(ContextEditor::save))
2478            .capture_action(cx.listener(ContextEditor::copy))
2479            .capture_action(cx.listener(ContextEditor::cycle_message_role))
2480            .capture_action(cx.listener(ContextEditor::confirm_command))
2481            .on_action(cx.listener(ContextEditor::assist))
2482            .on_action(cx.listener(ContextEditor::split))
2483            .on_action(cx.listener(ContextEditor::debug_edit_steps))
2484            .size_full()
2485            .v_flex()
2486            .child(
2487                div()
2488                    .flex_grow()
2489                    .bg(cx.theme().colors().editor_background)
2490                    .child(self.editor.clone())
2491                    .child(
2492                        h_flex()
2493                            .w_full()
2494                            .absolute()
2495                            .bottom_0()
2496                            .p_4()
2497                            .justify_end()
2498                            .child(
2499                                v_flex()
2500                                    .gap_2()
2501                                    .items_end()
2502                                    .when_some(self.render_notice(cx), |this, notice| {
2503                                        this.child(notice)
2504                                    })
2505                                    .child(self.render_send_button(cx)),
2506                            ),
2507                    ),
2508            )
2509    }
2510}
2511
2512impl FocusableView for ContextEditor {
2513    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
2514        self.editor.focus_handle(cx)
2515    }
2516}
2517
2518impl Item for ContextEditor {
2519    type Event = editor::EditorEvent;
2520
2521    fn tab_content_text(&self, cx: &WindowContext) -> Option<SharedString> {
2522        Some(util::truncate_and_trailoff(&self.title(cx), MAX_TAB_TITLE_LEN).into())
2523    }
2524
2525    fn to_item_events(event: &Self::Event, mut f: impl FnMut(item::ItemEvent)) {
2526        match event {
2527            EditorEvent::Edited { .. } => {
2528                f(item::ItemEvent::Edit);
2529            }
2530            EditorEvent::TitleChanged => {
2531                f(item::ItemEvent::UpdateTab);
2532            }
2533            _ => {}
2534        }
2535    }
2536
2537    fn tab_tooltip_text(&self, cx: &AppContext) -> Option<SharedString> {
2538        Some(self.title(cx).to_string().into())
2539    }
2540
2541    fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
2542        Some(Box::new(handle.clone()))
2543    }
2544
2545    fn set_nav_history(&mut self, nav_history: pane::ItemNavHistory, cx: &mut ViewContext<Self>) {
2546        self.editor.update(cx, |editor, cx| {
2547            Item::set_nav_history(editor, nav_history, cx)
2548        })
2549    }
2550
2551    fn navigate(&mut self, data: Box<dyn std::any::Any>, cx: &mut ViewContext<Self>) -> bool {
2552        self.editor
2553            .update(cx, |editor, cx| Item::navigate(editor, data, cx))
2554    }
2555
2556    fn deactivated(&mut self, cx: &mut ViewContext<Self>) {
2557        self.editor
2558            .update(cx, |editor, cx| Item::deactivated(editor, cx))
2559    }
2560}
2561
2562impl SearchableItem for ContextEditor {
2563    type Match = <Editor as SearchableItem>::Match;
2564
2565    fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
2566        self.editor.update(cx, |editor, cx| {
2567            editor.clear_matches(cx);
2568        });
2569    }
2570
2571    fn update_matches(&mut self, matches: &[Self::Match], cx: &mut ViewContext<Self>) {
2572        self.editor
2573            .update(cx, |editor, cx| editor.update_matches(matches, cx));
2574    }
2575
2576    fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
2577        self.editor
2578            .update(cx, |editor, cx| editor.query_suggestion(cx))
2579    }
2580
2581    fn activate_match(
2582        &mut self,
2583        index: usize,
2584        matches: &[Self::Match],
2585        cx: &mut ViewContext<Self>,
2586    ) {
2587        self.editor.update(cx, |editor, cx| {
2588            editor.activate_match(index, matches, cx);
2589        });
2590    }
2591
2592    fn select_matches(&mut self, matches: &[Self::Match], cx: &mut ViewContext<Self>) {
2593        self.editor
2594            .update(cx, |editor, cx| editor.select_matches(matches, cx));
2595    }
2596
2597    fn replace(
2598        &mut self,
2599        identifier: &Self::Match,
2600        query: &project::search::SearchQuery,
2601        cx: &mut ViewContext<Self>,
2602    ) {
2603        self.editor
2604            .update(cx, |editor, cx| editor.replace(identifier, query, cx));
2605    }
2606
2607    fn find_matches(
2608        &mut self,
2609        query: Arc<project::search::SearchQuery>,
2610        cx: &mut ViewContext<Self>,
2611    ) -> Task<Vec<Self::Match>> {
2612        self.editor
2613            .update(cx, |editor, cx| editor.find_matches(query, cx))
2614    }
2615
2616    fn active_match_index(
2617        &mut self,
2618        matches: &[Self::Match],
2619        cx: &mut ViewContext<Self>,
2620    ) -> Option<usize> {
2621        self.editor
2622            .update(cx, |editor, cx| editor.active_match_index(matches, cx))
2623    }
2624}
2625
2626impl FollowableItem for ContextEditor {
2627    fn remote_id(&self) -> Option<workspace::ViewId> {
2628        self.remote_id
2629    }
2630
2631    fn to_state_proto(&self, cx: &WindowContext) -> Option<proto::view::Variant> {
2632        let context = self.context.read(cx);
2633        Some(proto::view::Variant::ContextEditor(
2634            proto::view::ContextEditor {
2635                context_id: context.id().to_proto(),
2636                editor: if let Some(proto::view::Variant::Editor(proto)) =
2637                    self.editor.read(cx).to_state_proto(cx)
2638                {
2639                    Some(proto)
2640                } else {
2641                    None
2642                },
2643            },
2644        ))
2645    }
2646
2647    fn from_state_proto(
2648        workspace: View<Workspace>,
2649        id: workspace::ViewId,
2650        state: &mut Option<proto::view::Variant>,
2651        cx: &mut WindowContext,
2652    ) -> Option<Task<Result<View<Self>>>> {
2653        let proto::view::Variant::ContextEditor(_) = state.as_ref()? else {
2654            return None;
2655        };
2656        let Some(proto::view::Variant::ContextEditor(state)) = state.take() else {
2657            unreachable!()
2658        };
2659
2660        let context_id = ContextId::from_proto(state.context_id);
2661        let editor_state = state.editor?;
2662
2663        let (project, panel) = workspace.update(cx, |workspace, cx| {
2664            Some((
2665                workspace.project().clone(),
2666                workspace.panel::<AssistantPanel>(cx)?,
2667            ))
2668        })?;
2669
2670        let context_editor =
2671            panel.update(cx, |panel, cx| panel.open_remote_context(context_id, cx));
2672
2673        Some(cx.spawn(|mut cx| async move {
2674            let context_editor = context_editor.await?;
2675            context_editor
2676                .update(&mut cx, |context_editor, cx| {
2677                    context_editor.remote_id = Some(id);
2678                    context_editor.editor.update(cx, |editor, cx| {
2679                        editor.apply_update_proto(
2680                            &project,
2681                            proto::update_view::Variant::Editor(proto::update_view::Editor {
2682                                selections: editor_state.selections,
2683                                pending_selection: editor_state.pending_selection,
2684                                scroll_top_anchor: editor_state.scroll_top_anchor,
2685                                scroll_x: editor_state.scroll_y,
2686                                scroll_y: editor_state.scroll_y,
2687                                ..Default::default()
2688                            }),
2689                            cx,
2690                        )
2691                    })
2692                })?
2693                .await?;
2694            Ok(context_editor)
2695        }))
2696    }
2697
2698    fn to_follow_event(event: &Self::Event) -> Option<item::FollowEvent> {
2699        Editor::to_follow_event(event)
2700    }
2701
2702    fn add_event_to_update_proto(
2703        &self,
2704        event: &Self::Event,
2705        update: &mut Option<proto::update_view::Variant>,
2706        cx: &WindowContext,
2707    ) -> bool {
2708        self.editor
2709            .read(cx)
2710            .add_event_to_update_proto(event, update, cx)
2711    }
2712
2713    fn apply_update_proto(
2714        &mut self,
2715        project: &Model<Project>,
2716        message: proto::update_view::Variant,
2717        cx: &mut ViewContext<Self>,
2718    ) -> Task<Result<()>> {
2719        self.editor.update(cx, |editor, cx| {
2720            editor.apply_update_proto(project, message, cx)
2721        })
2722    }
2723
2724    fn is_project_item(&self, _cx: &WindowContext) -> bool {
2725        true
2726    }
2727
2728    fn set_leader_peer_id(
2729        &mut self,
2730        leader_peer_id: Option<proto::PeerId>,
2731        cx: &mut ViewContext<Self>,
2732    ) {
2733        self.editor.update(cx, |editor, cx| {
2734            editor.set_leader_peer_id(leader_peer_id, cx)
2735        })
2736    }
2737
2738    fn dedup(&self, existing: &Self, cx: &WindowContext) -> Option<item::Dedup> {
2739        if existing.context.read(cx).id() == self.context.read(cx).id() {
2740            Some(item::Dedup::KeepExisting)
2741        } else {
2742            None
2743        }
2744    }
2745}
2746
2747pub struct ContextEditorToolbarItem {
2748    fs: Arc<dyn Fs>,
2749    workspace: WeakView<Workspace>,
2750    active_context_editor: Option<WeakView<ContextEditor>>,
2751    model_selector_menu_handle: PopoverMenuHandle<ContextMenu>,
2752    model_summary_editor: View<Editor>,
2753}
2754
2755impl ContextEditorToolbarItem {
2756    pub fn new(
2757        workspace: &Workspace,
2758        model_selector_menu_handle: PopoverMenuHandle<ContextMenu>,
2759        model_summary_editor: View<Editor>,
2760    ) -> Self {
2761        Self {
2762            fs: workspace.app_state().fs.clone(),
2763            workspace: workspace.weak_handle(),
2764            active_context_editor: None,
2765            model_selector_menu_handle,
2766            model_summary_editor,
2767        }
2768    }
2769
2770    fn render_inject_context_menu(&self, cx: &mut ViewContext<Self>) -> impl Element {
2771        let commands = SlashCommandRegistry::global(cx);
2772        let active_editor_focus_handle = self.workspace.upgrade().and_then(|workspace| {
2773            Some(
2774                workspace
2775                    .read(cx)
2776                    .active_item_as::<Editor>(cx)?
2777                    .focus_handle(cx),
2778            )
2779        });
2780        let active_context_editor = self.active_context_editor.clone();
2781
2782        PopoverMenu::new("inject-context-menu")
2783            .trigger(IconButton::new("trigger", IconName::Quote).tooltip(|cx| {
2784                Tooltip::with_meta("Insert Context", None, "Type / to insert via keyboard", cx)
2785            }))
2786            .menu(move |cx| {
2787                let active_context_editor = active_context_editor.clone()?;
2788                ContextMenu::build(cx, |mut menu, _cx| {
2789                    for command_name in commands.featured_command_names() {
2790                        if let Some(command) = commands.command(&command_name) {
2791                            let menu_text = SharedString::from(Arc::from(command.menu_text()));
2792                            menu = menu.custom_entry(
2793                                {
2794                                    let command_name = command_name.clone();
2795                                    move |_cx| {
2796                                        h_flex()
2797                                            .gap_4()
2798                                            .w_full()
2799                                            .justify_between()
2800                                            .child(Label::new(menu_text.clone()))
2801                                            .child(
2802                                                Label::new(format!("/{command_name}"))
2803                                                    .color(Color::Muted),
2804                                            )
2805                                            .into_any()
2806                                    }
2807                                },
2808                                {
2809                                    let active_context_editor = active_context_editor.clone();
2810                                    move |cx| {
2811                                        active_context_editor
2812                                            .update(cx, |context_editor, cx| {
2813                                                context_editor.insert_command(&command_name, cx)
2814                                            })
2815                                            .ok();
2816                                    }
2817                                },
2818                            )
2819                        }
2820                    }
2821
2822                    if let Some(active_editor_focus_handle) = active_editor_focus_handle.clone() {
2823                        menu = menu
2824                            .context(active_editor_focus_handle)
2825                            .action("Quote Selection", Box::new(QuoteSelection));
2826                    }
2827
2828                    menu
2829                })
2830                .into()
2831            })
2832    }
2833
2834    fn render_remaining_tokens(&self, cx: &mut ViewContext<Self>) -> Option<impl IntoElement> {
2835        let context = &self
2836            .active_context_editor
2837            .as_ref()?
2838            .upgrade()?
2839            .read(cx)
2840            .context;
2841        let (token_count_color, token_count, max_token_count) = match token_state(context, cx)? {
2842            TokenState::NoTokensLeft {
2843                max_token_count,
2844                token_count,
2845            } => (Color::Error, token_count, max_token_count),
2846            TokenState::HasMoreTokens {
2847                max_token_count,
2848                token_count,
2849                over_warn_threshold,
2850            } => {
2851                let color = if over_warn_threshold {
2852                    Color::Warning
2853                } else {
2854                    Color::Muted
2855                };
2856                (color, token_count, max_token_count)
2857            }
2858        };
2859        Some(
2860            h_flex()
2861                .gap_0p5()
2862                .child(
2863                    Label::new(humanize_token_count(token_count))
2864                        .size(LabelSize::Small)
2865                        .color(token_count_color),
2866                )
2867                .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2868                .child(
2869                    Label::new(humanize_token_count(max_token_count))
2870                        .size(LabelSize::Small)
2871                        .color(Color::Muted),
2872                ),
2873        )
2874    }
2875}
2876
2877impl Render for ContextEditorToolbarItem {
2878    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
2879        let left_side = h_flex()
2880            .gap_2()
2881            .flex_1()
2882            .min_w(rems(DEFAULT_TAB_TITLE.len() as f32))
2883            .when(self.active_context_editor.is_some(), |left_side| {
2884                left_side
2885                    .child(
2886                        IconButton::new("regenerate-context", IconName::ArrowCircle)
2887                            .tooltip(|cx| Tooltip::text("Regenerate Summary", cx))
2888                            .on_click(cx.listener(move |_, _, cx| {
2889                                cx.emit(ContextEditorToolbarItemEvent::RegenerateSummary)
2890                            })),
2891                    )
2892                    .child(self.model_summary_editor.clone())
2893            });
2894        let right_side = h_flex()
2895            .gap_2()
2896            .child(
2897                ModelSelector::new(
2898                    self.fs.clone(),
2899                    ButtonLike::new("active-model")
2900                        .style(ButtonStyle::Subtle)
2901                        .child(
2902                            h_flex()
2903                                .w_full()
2904                                .gap_0p5()
2905                                .child(
2906                                    div()
2907                                        .overflow_x_hidden()
2908                                        .flex_grow()
2909                                        .whitespace_nowrap()
2910                                        .child(
2911                                            Label::new(
2912                                                LanguageModelRegistry::read_global(cx)
2913                                                    .active_model()
2914                                                    .map(|model| {
2915                                                        format!(
2916                                                            "{}: {}",
2917                                                            model.provider_name().0,
2918                                                            model.name().0
2919                                                        )
2920                                                    })
2921                                                    .unwrap_or_else(|| "No model selected".into()),
2922                                            )
2923                                            .size(LabelSize::Small)
2924                                            .color(Color::Muted),
2925                                        ),
2926                                )
2927                                .child(
2928                                    Icon::new(IconName::ChevronDown)
2929                                        .color(Color::Muted)
2930                                        .size(IconSize::XSmall),
2931                                ),
2932                        )
2933                        .tooltip(move |cx| {
2934                            Tooltip::for_action("Change Model", &ToggleModelSelector, cx)
2935                        }),
2936                )
2937                .with_handle(self.model_selector_menu_handle.clone()),
2938            )
2939            .children(self.render_remaining_tokens(cx))
2940            .child(self.render_inject_context_menu(cx));
2941
2942        h_flex()
2943            .size_full()
2944            .justify_between()
2945            .child(left_side)
2946            .child(right_side)
2947    }
2948}
2949
2950impl ToolbarItemView for ContextEditorToolbarItem {
2951    fn set_active_pane_item(
2952        &mut self,
2953        active_pane_item: Option<&dyn ItemHandle>,
2954        cx: &mut ViewContext<Self>,
2955    ) -> ToolbarItemLocation {
2956        self.active_context_editor = active_pane_item
2957            .and_then(|item| item.act_as::<ContextEditor>(cx))
2958            .map(|editor| editor.downgrade());
2959        cx.notify();
2960        if self.active_context_editor.is_none() {
2961            ToolbarItemLocation::Hidden
2962        } else {
2963            ToolbarItemLocation::PrimaryRight
2964        }
2965    }
2966
2967    fn pane_focus_update(&mut self, _pane_focused: bool, cx: &mut ViewContext<Self>) {
2968        cx.notify();
2969    }
2970}
2971
2972impl EventEmitter<ToolbarItemEvent> for ContextEditorToolbarItem {}
2973
2974enum ContextEditorToolbarItemEvent {
2975    RegenerateSummary,
2976}
2977impl EventEmitter<ContextEditorToolbarItemEvent> for ContextEditorToolbarItem {}
2978
2979pub struct ContextHistory {
2980    picker: View<Picker<SavedContextPickerDelegate>>,
2981    _subscriptions: Vec<Subscription>,
2982    assistant_panel: WeakView<AssistantPanel>,
2983}
2984
2985impl ContextHistory {
2986    fn new(
2987        project: Model<Project>,
2988        context_store: Model<ContextStore>,
2989        assistant_panel: WeakView<AssistantPanel>,
2990        cx: &mut ViewContext<Self>,
2991    ) -> Self {
2992        let picker = cx.new_view(|cx| {
2993            Picker::uniform_list(
2994                SavedContextPickerDelegate::new(project, context_store.clone()),
2995                cx,
2996            )
2997            .modal(false)
2998            .max_height(None)
2999        });
3000
3001        let _subscriptions = vec![
3002            cx.observe(&context_store, |this, _, cx| {
3003                this.picker.update(cx, |picker, cx| picker.refresh(cx));
3004            }),
3005            cx.subscribe(&picker, Self::handle_picker_event),
3006        ];
3007
3008        Self {
3009            picker,
3010            _subscriptions,
3011            assistant_panel,
3012        }
3013    }
3014
3015    fn handle_picker_event(
3016        &mut self,
3017        _: View<Picker<SavedContextPickerDelegate>>,
3018        event: &SavedContextPickerEvent,
3019        cx: &mut ViewContext<Self>,
3020    ) {
3021        let SavedContextPickerEvent::Confirmed(context) = event;
3022        self.assistant_panel
3023            .update(cx, |assistant_panel, cx| match context {
3024                ContextMetadata::Remote(metadata) => {
3025                    assistant_panel
3026                        .open_remote_context(metadata.id.clone(), cx)
3027                        .detach_and_log_err(cx);
3028                }
3029                ContextMetadata::Saved(metadata) => {
3030                    assistant_panel
3031                        .open_saved_context(metadata.path.clone(), cx)
3032                        .detach_and_log_err(cx);
3033                }
3034            })
3035            .ok();
3036    }
3037}
3038
3039impl Render for ContextHistory {
3040    fn render(&mut self, _: &mut ViewContext<Self>) -> impl IntoElement {
3041        div().size_full().child(self.picker.clone())
3042    }
3043}
3044
3045impl FocusableView for ContextHistory {
3046    fn focus_handle(&self, cx: &AppContext) -> FocusHandle {
3047        self.picker.focus_handle(cx)
3048    }
3049}
3050
3051impl EventEmitter<()> for ContextHistory {}
3052
3053impl Item for ContextHistory {
3054    type Event = ();
3055
3056    fn tab_content_text(&self, _cx: &WindowContext) -> Option<SharedString> {
3057        Some("History".into())
3058    }
3059}
3060
3061pub struct ConfigurationView {
3062    focus_handle: FocusHandle,
3063    configuration_views: HashMap<LanguageModelProviderId, AnyView>,
3064    _registry_subscription: Subscription,
3065}
3066
3067impl ConfigurationView {
3068    fn new(cx: &mut ViewContext<Self>) -> Self {
3069        let focus_handle = cx.focus_handle();
3070
3071        let registry_subscription = cx.subscribe(
3072            &LanguageModelRegistry::global(cx),
3073            |this, _, event: &language_model::Event, cx| match event {
3074                language_model::Event::AddedProvider(provider_id) => {
3075                    let provider = LanguageModelRegistry::read_global(cx).provider(provider_id);
3076                    if let Some(provider) = provider {
3077                        this.add_configuration_view(&provider, cx);
3078                    }
3079                }
3080                language_model::Event::RemovedProvider(provider_id) => {
3081                    this.remove_configuration_view(provider_id);
3082                }
3083                _ => {}
3084            },
3085        );
3086
3087        let mut this = Self {
3088            focus_handle,
3089            configuration_views: HashMap::default(),
3090            _registry_subscription: registry_subscription,
3091        };
3092        this.build_configuration_views(cx);
3093        this
3094    }
3095
3096    fn build_configuration_views(&mut self, cx: &mut ViewContext<Self>) {
3097        let providers = LanguageModelRegistry::read_global(cx).providers();
3098        for provider in providers {
3099            self.add_configuration_view(&provider, cx);
3100        }
3101    }
3102
3103    fn remove_configuration_view(&mut self, provider_id: &LanguageModelProviderId) {
3104        self.configuration_views.remove(provider_id);
3105    }
3106
3107    fn add_configuration_view(
3108        &mut self,
3109        provider: &Arc<dyn LanguageModelProvider>,
3110        cx: &mut ViewContext<Self>,
3111    ) {
3112        let configuration_view = provider.configuration_view(cx);
3113        self.configuration_views
3114            .insert(provider.id(), configuration_view);
3115    }
3116
3117    fn render_provider_view(
3118        &mut self,
3119        provider: &Arc<dyn LanguageModelProvider>,
3120        cx: &mut ViewContext<Self>,
3121    ) -> Div {
3122        let provider_name = provider.name().0.clone();
3123        let configuration_view = self.configuration_views.get(&provider.id()).cloned();
3124
3125        v_flex()
3126            .gap_4()
3127            .child(Headline::new(provider_name.clone()).size(HeadlineSize::Medium))
3128            .child(
3129                div()
3130                    .p(Spacing::Large.rems(cx))
3131                    .bg(cx.theme().colors().title_bar_background)
3132                    .border_1()
3133                    .border_color(cx.theme().colors().border_variant)
3134                    .rounded_md()
3135                    .when(configuration_view.is_none(), |this| {
3136                        this.child(div().child(Label::new(format!(
3137                            "No configuration view for {}",
3138                            provider_name
3139                        ))))
3140                    })
3141                    .when_some(configuration_view, |this, configuration_view| {
3142                        this.child(configuration_view)
3143                    }),
3144            )
3145            .when(provider.is_authenticated(cx), move |this| {
3146                this.child(
3147                    h_flex().justify_end().child(
3148                        Button::new(
3149                            "new-context",
3150                            format!("Open new context using {}", provider_name),
3151                        )
3152                        .icon_position(IconPosition::Start)
3153                        .icon(IconName::Plus)
3154                        .style(ButtonStyle::Filled)
3155                        .layer(ElevationIndex::ModalSurface)
3156                        .on_click(cx.listener({
3157                            let provider = provider.clone();
3158                            move |_, _, cx| {
3159                                cx.emit(ConfigurationViewEvent::NewProviderContextEditor(
3160                                    provider.clone(),
3161                                ))
3162                            }
3163                        })),
3164                    ),
3165                )
3166            })
3167    }
3168}
3169
3170impl Render for ConfigurationView {
3171    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
3172        let providers = LanguageModelRegistry::read_global(cx).providers();
3173        let provider_views = providers
3174            .into_iter()
3175            .map(|provider| self.render_provider_view(&provider, cx))
3176            .collect::<Vec<_>>();
3177
3178        v_flex()
3179            .id("assistant-configuration-view")
3180            .track_focus(&self.focus_handle)
3181            .w_full()
3182            .min_h_full()
3183            .p(Spacing::XXLarge.rems(cx))
3184            .overflow_y_scroll()
3185            .gap_6()
3186            .child(
3187                v_flex()
3188                    .gap_2()
3189                    .child(Headline::new("Configure your Assistant").size(HeadlineSize::Medium)),
3190            )
3191            .child(
3192                v_flex()
3193                    .gap_2()
3194                    .child(
3195                        Label::new(
3196                            "At least one provider must be configured to use the assistant.",
3197                        )
3198                        .color(Color::Muted),
3199                    )
3200                    .child(v_flex().mt_2().gap_4().children(provider_views)),
3201            )
3202    }
3203}
3204
3205pub enum ConfigurationViewEvent {
3206    NewProviderContextEditor(Arc<dyn LanguageModelProvider>),
3207}
3208
3209impl EventEmitter<ConfigurationViewEvent> for ConfigurationView {}
3210
3211impl FocusableView for ConfigurationView {
3212    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
3213        self.focus_handle.clone()
3214    }
3215}
3216
3217impl Item for ConfigurationView {
3218    type Event = ConfigurationViewEvent;
3219
3220    fn tab_content_text(&self, _cx: &WindowContext) -> Option<SharedString> {
3221        Some("Configuration".into())
3222    }
3223}
3224
3225type ToggleFold = Arc<dyn Fn(bool, &mut WindowContext) + Send + Sync>;
3226
3227fn render_slash_command_output_toggle(
3228    row: MultiBufferRow,
3229    is_folded: bool,
3230    fold: ToggleFold,
3231    _cx: &mut WindowContext,
3232) -> AnyElement {
3233    Disclosure::new(
3234        ("slash-command-output-fold-indicator", row.0 as u64),
3235        !is_folded,
3236    )
3237    .selected(is_folded)
3238    .on_click(move |_e, cx| fold(!is_folded, cx))
3239    .into_any_element()
3240}
3241
3242fn render_pending_slash_command_gutter_decoration(
3243    row: MultiBufferRow,
3244    status: &PendingSlashCommandStatus,
3245    confirm_command: Arc<dyn Fn(&mut WindowContext)>,
3246) -> AnyElement {
3247    let mut icon = IconButton::new(
3248        ("slash-command-gutter-decoration", row.0),
3249        ui::IconName::TriangleRight,
3250    )
3251    .on_click(move |_e, cx| confirm_command(cx))
3252    .icon_size(ui::IconSize::Small)
3253    .size(ui::ButtonSize::None);
3254
3255    match status {
3256        PendingSlashCommandStatus::Idle => {
3257            icon = icon.icon_color(Color::Muted);
3258        }
3259        PendingSlashCommandStatus::Running { .. } => {
3260            icon = icon.selected(true);
3261        }
3262        PendingSlashCommandStatus::Error(_) => icon = icon.icon_color(Color::Error),
3263    }
3264
3265    icon.into_any_element()
3266}
3267
3268fn render_docs_slash_command_trailer(
3269    row: MultiBufferRow,
3270    command: PendingSlashCommand,
3271    cx: &mut WindowContext,
3272) -> AnyElement {
3273    let Some(argument) = command.argument else {
3274        return Empty.into_any();
3275    };
3276
3277    let args = DocsSlashCommandArgs::parse(&argument);
3278
3279    let Some(store) = args
3280        .provider()
3281        .and_then(|provider| IndexedDocsStore::try_global(provider, cx).ok())
3282    else {
3283        return Empty.into_any();
3284    };
3285
3286    let Some(package) = args.package() else {
3287        return Empty.into_any();
3288    };
3289
3290    let mut children = Vec::new();
3291
3292    if store.is_indexing(&package) {
3293        children.push(
3294            div()
3295                .id(("crates-being-indexed", row.0))
3296                .child(Icon::new(IconName::ArrowCircle).with_animation(
3297                    "arrow-circle",
3298                    Animation::new(Duration::from_secs(4)).repeat(),
3299                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
3300                ))
3301                .tooltip({
3302                    let package = package.clone();
3303                    move |cx| Tooltip::text(format!("Indexing {package}"), cx)
3304                })
3305                .into_any_element(),
3306        );
3307    }
3308
3309    if let Some(latest_error) = store.latest_error_for_package(&package) {
3310        children.push(
3311            div()
3312                .id(("latest-error", row.0))
3313                .child(Icon::new(IconName::ExclamationTriangle).color(Color::Warning))
3314                .tooltip(move |cx| Tooltip::text(format!("failed to index: {latest_error}"), cx))
3315                .into_any_element(),
3316        )
3317    }
3318
3319    let is_indexing = store.is_indexing(&package);
3320    let latest_error = store.latest_error_for_package(&package);
3321
3322    if !is_indexing && latest_error.is_none() {
3323        return Empty.into_any();
3324    }
3325
3326    h_flex().gap_2().children(children).into_any_element()
3327}
3328
3329fn make_lsp_adapter_delegate(
3330    project: &Model<Project>,
3331    cx: &mut AppContext,
3332) -> Result<Arc<dyn LspAdapterDelegate>> {
3333    project.update(cx, |project, cx| {
3334        // TODO: Find the right worktree.
3335        let worktree = project
3336            .worktrees(cx)
3337            .next()
3338            .ok_or_else(|| anyhow!("no worktrees when constructing ProjectLspAdapterDelegate"))?;
3339        Ok(ProjectLspAdapterDelegate::new(project, &worktree, cx) as Arc<dyn LspAdapterDelegate>)
3340    })
3341}
3342
3343fn slash_command_error_block_renderer(message: String) -> RenderBlock {
3344    Box::new(move |_| {
3345        div()
3346            .pl_6()
3347            .child(
3348                Label::new(format!("error: {}", message))
3349                    .single_line()
3350                    .color(Color::Error),
3351            )
3352            .into_any()
3353    })
3354}
3355
3356enum TokenState {
3357    NoTokensLeft {
3358        max_token_count: usize,
3359        token_count: usize,
3360    },
3361    HasMoreTokens {
3362        max_token_count: usize,
3363        token_count: usize,
3364        over_warn_threshold: bool,
3365    },
3366}
3367
3368fn token_state(context: &Model<Context>, cx: &AppContext) -> Option<TokenState> {
3369    const WARNING_TOKEN_THRESHOLD: f32 = 0.8;
3370
3371    let model = LanguageModelRegistry::read_global(cx).active_model()?;
3372    let token_count = context.read(cx).token_count()?;
3373    let max_token_count = model.max_token_count();
3374
3375    let remaining_tokens = max_token_count as isize - token_count as isize;
3376    let token_state = if remaining_tokens <= 0 {
3377        TokenState::NoTokensLeft {
3378            max_token_count,
3379            token_count,
3380        }
3381    } else {
3382        let over_warn_threshold =
3383            token_count as f32 / max_token_count as f32 >= WARNING_TOKEN_THRESHOLD;
3384        TokenState::HasMoreTokens {
3385            max_token_count,
3386            token_count,
3387            over_warn_threshold,
3388        }
3389    };
3390    Some(token_state)
3391}
3392
3393enum ConfigurationError {
3394    NoProvider,
3395    ProviderNotAuthenticated,
3396}
3397
3398fn configuration_error(cx: &AppContext) -> Option<ConfigurationError> {
3399    let provider = LanguageModelRegistry::read_global(cx).active_provider();
3400    let is_authenticated = provider
3401        .as_ref()
3402        .map_or(false, |provider| provider.is_authenticated(cx));
3403
3404    if provider.is_some() && is_authenticated {
3405        return None;
3406    }
3407
3408    if provider.is_none() {
3409        return Some(ConfigurationError::NoProvider);
3410    }
3411
3412    if !is_authenticated {
3413        return Some(ConfigurationError::ProviderNotAuthenticated);
3414    }
3415
3416    None
3417}