thread_view.rs

   1use acp_thread::{
   2    AcpThread, AcpThreadEvent, AgentThreadEntry, AssistantMessage, AssistantMessageChunk,
   3    AuthRequired, LoadError, MentionUri, RetryStatus, ThreadStatus, ToolCall, ToolCallContent,
   4    ToolCallStatus, UserMessageId,
   5};
   6use acp_thread::{AgentConnection, Plan};
   7use action_log::ActionLog;
   8use agent::{TextThreadStore, ThreadStore};
   9use agent_client_protocol::{self as acp};
  10use agent_servers::{AgentServer, ClaudeCode};
  11use agent_settings::{AgentProfileId, AgentSettings, CompletionMode, NotifyWhenAgentWaiting};
  12use agent2::DbThreadMetadata;
  13use anyhow::bail;
  14use audio::{Audio, Sound};
  15use buffer_diff::BufferDiff;
  16use client::zed_urls;
  17use collections::{HashMap, HashSet};
  18use editor::scroll::Autoscroll;
  19use editor::{Editor, EditorMode, MultiBuffer, PathKey, SelectionEffects};
  20use file_icons::FileIcons;
  21use fs::Fs;
  22use gpui::{
  23    Action, Animation, AnimationExt, AnyView, App, BorderStyle, ClickEvent, ClipboardItem,
  24    EdgesRefinement, Empty, Entity, FocusHandle, Focusable, Hsla, Length, ListOffset, ListState,
  25    MouseButton, PlatformDisplay, SharedString, Stateful, StyleRefinement, Subscription, Task,
  26    TextStyle, TextStyleRefinement, Transformation, UnderlineStyle, WeakEntity, Window,
  27    WindowHandle, div, linear_color_stop, linear_gradient, list, percentage, point, prelude::*,
  28    pulsating_between,
  29};
  30use language::Buffer;
  31
  32use language_model::LanguageModelRegistry;
  33use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle};
  34use project::{Project, ProjectEntryId};
  35use prompt_store::PromptId;
  36use rope::Point;
  37use settings::{Settings as _, SettingsStore};
  38use std::sync::Arc;
  39use std::time::Instant;
  40use std::{collections::BTreeMap, process::ExitStatus, rc::Rc, time::Duration};
  41use text::Anchor;
  42use theme::ThemeSettings;
  43use ui::{
  44    Callout, Disclosure, Divider, DividerColor, ElevationIndex, KeyBinding, PopoverMenuHandle,
  45    Scrollbar, ScrollbarState, Tooltip, prelude::*,
  46};
  47use util::{ResultExt, size::format_file_size, time::duration_alt_display};
  48use workspace::{CollaboratorId, Workspace};
  49use zed_actions::agent::{Chat, ToggleModelSelector};
  50use zed_actions::assistant::OpenRulesLibrary;
  51
  52use super::entry_view_state::EntryViewState;
  53use crate::acp::AcpModelSelectorPopover;
  54use crate::acp::entry_view_state::{EntryViewEvent, ViewEvent};
  55use crate::acp::message_editor::{MessageEditor, MessageEditorEvent};
  56use crate::agent_diff::AgentDiff;
  57use crate::profile_selector::{ProfileProvider, ProfileSelector};
  58use crate::ui::{AgentNotification, AgentNotificationEvent, BurnModeTooltip};
  59use crate::{
  60    AgentDiffPane, AgentPanel, ContinueThread, ContinueWithBurnMode, ExpandMessageEditor, Follow,
  61    KeepAll, OpenAgentDiff, RejectAll, ToggleBurnMode, ToggleProfileSelector,
  62};
  63
  64const RESPONSE_PADDING_X: Pixels = px(19.);
  65pub const MIN_EDITOR_LINES: usize = 4;
  66pub const MAX_EDITOR_LINES: usize = 8;
  67
  68enum ThreadError {
  69    PaymentRequired,
  70    ModelRequestLimitReached(cloud_llm_client::Plan),
  71    ToolUseLimitReached,
  72    Other(SharedString),
  73}
  74
  75impl ThreadError {
  76    fn from_err(error: anyhow::Error) -> Self {
  77        if error.is::<language_model::PaymentRequiredError>() {
  78            Self::PaymentRequired
  79        } else if error.is::<language_model::ToolUseLimitReachedError>() {
  80            Self::ToolUseLimitReached
  81        } else if let Some(error) =
  82            error.downcast_ref::<language_model::ModelRequestLimitReachedError>()
  83        {
  84            Self::ModelRequestLimitReached(error.plan)
  85        } else {
  86            Self::Other(error.to_string().into())
  87        }
  88    }
  89}
  90
  91impl ProfileProvider for Entity<agent2::Thread> {
  92    fn profile_id(&self, cx: &App) -> AgentProfileId {
  93        self.read(cx).profile().clone()
  94    }
  95
  96    fn set_profile(&self, profile_id: AgentProfileId, cx: &mut App) {
  97        self.update(cx, |thread, _cx| {
  98            thread.set_profile(profile_id);
  99        });
 100    }
 101
 102    fn profiles_supported(&self, cx: &App) -> bool {
 103        self.read(cx)
 104            .model()
 105            .is_some_and(|model| model.supports_tools())
 106    }
 107}
 108
 109pub struct AcpThreadView {
 110    agent: Rc<dyn AgentServer>,
 111    workspace: WeakEntity<Workspace>,
 112    project: Entity<Project>,
 113    thread_state: ThreadState,
 114    entry_view_state: Entity<EntryViewState>,
 115    message_editor: Entity<MessageEditor>,
 116    model_selector: Option<Entity<AcpModelSelectorPopover>>,
 117    profile_selector: Option<Entity<ProfileSelector>>,
 118    notifications: Vec<WindowHandle<AgentNotification>>,
 119    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
 120    thread_retry_status: Option<RetryStatus>,
 121    thread_error: Option<ThreadError>,
 122    list_state: ListState,
 123    scrollbar_state: ScrollbarState,
 124    auth_task: Option<Task<()>>,
 125    expanded_tool_calls: HashSet<acp::ToolCallId>,
 126    expanded_thinking_blocks: HashSet<(usize, usize)>,
 127    edits_expanded: bool,
 128    plan_expanded: bool,
 129    editor_expanded: bool,
 130    terminal_expanded: bool,
 131    editing_message: Option<usize>,
 132    _cancel_task: Option<Task<()>>,
 133    _subscriptions: [Subscription; 3],
 134}
 135
 136enum ThreadState {
 137    Loading {
 138        _task: Task<()>,
 139    },
 140    Ready {
 141        thread: Entity<AcpThread>,
 142        _subscription: [Subscription; 2],
 143    },
 144    LoadError(LoadError),
 145    Unauthenticated {
 146        connection: Rc<dyn AgentConnection>,
 147        description: Option<Entity<Markdown>>,
 148        configuration_view: Option<AnyView>,
 149        _subscription: Option<Subscription>,
 150    },
 151    ServerExited {
 152        status: ExitStatus,
 153    },
 154}
 155
 156impl AcpThreadView {
 157    pub fn new(
 158        agent: Rc<dyn AgentServer>,
 159        resume_thread: Option<DbThreadMetadata>,
 160        workspace: WeakEntity<Workspace>,
 161        project: Entity<Project>,
 162        thread_store: Entity<ThreadStore>,
 163        text_thread_store: Entity<TextThreadStore>,
 164        window: &mut Window,
 165        cx: &mut Context<Self>,
 166    ) -> Self {
 167        let prevent_slash_commands = agent.clone().downcast::<ClaudeCode>().is_some();
 168        let message_editor = cx.new(|cx| {
 169            MessageEditor::new(
 170                workspace.clone(),
 171                project.clone(),
 172                thread_store.clone(),
 173                text_thread_store.clone(),
 174                "Message the agent - @ to include context",
 175                prevent_slash_commands,
 176                editor::EditorMode::AutoHeight {
 177                    min_lines: MIN_EDITOR_LINES,
 178                    max_lines: Some(MAX_EDITOR_LINES),
 179                },
 180                window,
 181                cx,
 182            )
 183        });
 184
 185        let list_state = ListState::new(0, gpui::ListAlignment::Bottom, px(2048.0));
 186
 187        let entry_view_state = cx.new(|_| {
 188            EntryViewState::new(
 189                workspace.clone(),
 190                project.clone(),
 191                thread_store.clone(),
 192                text_thread_store.clone(),
 193                prevent_slash_commands,
 194            )
 195        });
 196
 197        let subscriptions = [
 198            cx.observe_global_in::<SettingsStore>(window, Self::settings_changed),
 199            cx.subscribe_in(&message_editor, window, Self::handle_message_editor_event),
 200            cx.subscribe_in(&entry_view_state, window, Self::handle_entry_view_event),
 201        ];
 202
 203        Self {
 204            agent: agent.clone(),
 205            workspace: workspace.clone(),
 206            project: project.clone(),
 207            entry_view_state,
 208            thread_state: Self::initial_state(agent, resume_thread, workspace, project, window, cx),
 209            message_editor,
 210            model_selector: None,
 211            profile_selector: None,
 212            notifications: Vec::new(),
 213            notification_subscriptions: HashMap::default(),
 214            list_state: list_state.clone(),
 215            scrollbar_state: ScrollbarState::new(list_state).parent_entity(&cx.entity()),
 216            thread_retry_status: None,
 217            thread_error: None,
 218            auth_task: None,
 219            expanded_tool_calls: HashSet::default(),
 220            expanded_thinking_blocks: HashSet::default(),
 221            editing_message: None,
 222            edits_expanded: false,
 223            plan_expanded: false,
 224            editor_expanded: false,
 225            terminal_expanded: true,
 226            _subscriptions: subscriptions,
 227            _cancel_task: None,
 228        }
 229    }
 230
 231    fn initial_state(
 232        agent: Rc<dyn AgentServer>,
 233        resume_thread: Option<DbThreadMetadata>,
 234        workspace: WeakEntity<Workspace>,
 235        project: Entity<Project>,
 236        window: &mut Window,
 237        cx: &mut Context<Self>,
 238    ) -> ThreadState {
 239        let root_dir = project
 240            .read(cx)
 241            .visible_worktrees(cx)
 242            .next()
 243            .map(|worktree| worktree.read(cx).abs_path())
 244            .unwrap_or_else(|| paths::home_dir().as_path().into());
 245
 246        let connect_task = agent.connect(&root_dir, &project, cx);
 247        let load_task = cx.spawn_in(window, async move |this, cx| {
 248            let connection = match connect_task.await {
 249                Ok(connection) => connection,
 250                Err(err) => {
 251                    this.update(cx, |this, cx| {
 252                        this.handle_load_error(err, cx);
 253                        cx.notify();
 254                    })
 255                    .log_err();
 256                    return;
 257                }
 258            };
 259
 260            let result = if let Some(native_agent) = connection
 261                .clone()
 262                .downcast::<agent2::NativeAgentConnection>()
 263                && let Some(resume) = resume_thread
 264            {
 265                cx.update(|_, cx| {
 266                    native_agent
 267                        .0
 268                        .update(cx, |agent, cx| agent.open_thread(resume.id, cx))
 269                })
 270                .log_err()
 271            } else {
 272                cx.update(|_, cx| {
 273                    connection
 274                        .clone()
 275                        .new_thread(project.clone(), &root_dir, cx)
 276                })
 277                .log_err()
 278            };
 279
 280            let Some(result) = result else {
 281                return;
 282            };
 283
 284            let result = match result.await {
 285                Err(e) => match e.downcast::<acp_thread::AuthRequired>() {
 286                    Ok(err) => {
 287                        cx.update(|window, cx| {
 288                            Self::handle_auth_required(this, err, agent, connection, window, cx)
 289                        })
 290                        .log_err();
 291                        return;
 292                    }
 293                    Err(err) => Err(err),
 294                },
 295                Ok(thread) => Ok(thread),
 296            };
 297
 298            this.update_in(cx, |this, window, cx| {
 299                match result {
 300                    Ok(thread) => {
 301                        let thread_subscription =
 302                            cx.subscribe_in(&thread, window, Self::handle_thread_event);
 303
 304                        let action_log = thread.read(cx).action_log().clone();
 305                        let action_log_subscription =
 306                            cx.observe(&action_log, |_, _, cx| cx.notify());
 307
 308                        let count = thread.read(cx).entries().len();
 309                        this.list_state.splice(0..0, count);
 310                        this.entry_view_state.update(cx, |view_state, cx| {
 311                            for ix in 0..count {
 312                                view_state.sync_entry(ix, &thread, window, cx);
 313                            }
 314                        });
 315
 316                        AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 317
 318                        this.model_selector =
 319                            thread
 320                                .read(cx)
 321                                .connection()
 322                                .model_selector()
 323                                .map(|selector| {
 324                                    cx.new(|cx| {
 325                                        AcpModelSelectorPopover::new(
 326                                            thread.read(cx).session_id().clone(),
 327                                            selector,
 328                                            PopoverMenuHandle::default(),
 329                                            this.focus_handle(cx),
 330                                            window,
 331                                            cx,
 332                                        )
 333                                    })
 334                                });
 335
 336                        this.thread_state = ThreadState::Ready {
 337                            thread,
 338                            _subscription: [thread_subscription, action_log_subscription],
 339                        };
 340
 341                        this.profile_selector = this.as_native_thread(cx).map(|thread| {
 342                            cx.new(|cx| {
 343                                ProfileSelector::new(
 344                                    <dyn Fs>::global(cx),
 345                                    Arc::new(thread.clone()),
 346                                    this.focus_handle(cx),
 347                                    cx,
 348                                )
 349                            })
 350                        });
 351
 352                        cx.notify();
 353                    }
 354                    Err(err) => {
 355                        this.handle_load_error(err, cx);
 356                    }
 357                };
 358            })
 359            .log_err();
 360        });
 361
 362        ThreadState::Loading { _task: load_task }
 363    }
 364
 365    fn handle_auth_required(
 366        this: WeakEntity<Self>,
 367        err: AuthRequired,
 368        agent: Rc<dyn AgentServer>,
 369        connection: Rc<dyn AgentConnection>,
 370        window: &mut Window,
 371        cx: &mut App,
 372    ) {
 373        let agent_name = agent.name();
 374        let (configuration_view, subscription) = if let Some(provider_id) = err.provider_id {
 375            let registry = LanguageModelRegistry::global(cx);
 376
 377            let sub = window.subscribe(&registry, cx, {
 378                let provider_id = provider_id.clone();
 379                let this = this.clone();
 380                move |_, ev, window, cx| {
 381                    if let language_model::Event::ProviderStateChanged(updated_provider_id) = &ev
 382                        && &provider_id == updated_provider_id
 383                    {
 384                        this.update(cx, |this, cx| {
 385                            this.thread_state = Self::initial_state(
 386                                agent.clone(),
 387                                None,
 388                                this.workspace.clone(),
 389                                this.project.clone(),
 390                                window,
 391                                cx,
 392                            );
 393                            cx.notify();
 394                        })
 395                        .ok();
 396                    }
 397                }
 398            });
 399
 400            let view = registry.read(cx).provider(&provider_id).map(|provider| {
 401                provider.configuration_view(
 402                    language_model::ConfigurationViewTargetAgent::Other(agent_name),
 403                    window,
 404                    cx,
 405                )
 406            });
 407
 408            (view, Some(sub))
 409        } else {
 410            (None, None)
 411        };
 412
 413        this.update(cx, |this, cx| {
 414            this.thread_state = ThreadState::Unauthenticated {
 415                connection,
 416                configuration_view,
 417                description: err
 418                    .description
 419                    .clone()
 420                    .map(|desc| cx.new(|cx| Markdown::new(desc.into(), None, None, cx))),
 421                _subscription: subscription,
 422            };
 423            cx.notify();
 424        })
 425        .ok();
 426    }
 427
 428    fn handle_load_error(&mut self, err: anyhow::Error, cx: &mut Context<Self>) {
 429        if let Some(load_err) = err.downcast_ref::<LoadError>() {
 430            self.thread_state = ThreadState::LoadError(load_err.clone());
 431        } else {
 432            self.thread_state = ThreadState::LoadError(LoadError::Other(err.to_string().into()))
 433        }
 434        cx.notify();
 435    }
 436
 437    pub fn thread(&self) -> Option<&Entity<AcpThread>> {
 438        match &self.thread_state {
 439            ThreadState::Ready { thread, .. } => Some(thread),
 440            ThreadState::Unauthenticated { .. }
 441            | ThreadState::Loading { .. }
 442            | ThreadState::LoadError(..)
 443            | ThreadState::ServerExited { .. } => None,
 444        }
 445    }
 446
 447    pub fn title(&self, cx: &App) -> SharedString {
 448        match &self.thread_state {
 449            ThreadState::Ready { thread, .. } => thread.read(cx).title(),
 450            ThreadState::Loading { .. } => "Loading…".into(),
 451            ThreadState::LoadError(_) => "Failed to load".into(),
 452            ThreadState::Unauthenticated { .. } => "Authentication Required".into(),
 453            ThreadState::ServerExited { .. } => "Server exited unexpectedly".into(),
 454        }
 455    }
 456
 457    pub fn cancel_generation(&mut self, cx: &mut Context<Self>) {
 458        self.thread_error.take();
 459        self.thread_retry_status.take();
 460
 461        if let Some(thread) = self.thread() {
 462            self._cancel_task = Some(thread.update(cx, |thread, cx| thread.cancel(cx)));
 463        }
 464    }
 465
 466    pub fn expand_message_editor(
 467        &mut self,
 468        _: &ExpandMessageEditor,
 469        _window: &mut Window,
 470        cx: &mut Context<Self>,
 471    ) {
 472        self.set_editor_is_expanded(!self.editor_expanded, cx);
 473        cx.notify();
 474    }
 475
 476    fn set_editor_is_expanded(&mut self, is_expanded: bool, cx: &mut Context<Self>) {
 477        self.editor_expanded = is_expanded;
 478        self.message_editor.update(cx, |editor, cx| {
 479            if is_expanded {
 480                editor.set_mode(
 481                    EditorMode::Full {
 482                        scale_ui_elements_with_buffer_font_size: false,
 483                        show_active_line_background: false,
 484                        sized_by_content: false,
 485                    },
 486                    cx,
 487                )
 488            } else {
 489                editor.set_mode(
 490                    EditorMode::AutoHeight {
 491                        min_lines: MIN_EDITOR_LINES,
 492                        max_lines: Some(MAX_EDITOR_LINES),
 493                    },
 494                    cx,
 495                )
 496            }
 497        });
 498        cx.notify();
 499    }
 500
 501    pub fn handle_message_editor_event(
 502        &mut self,
 503        _: &Entity<MessageEditor>,
 504        event: &MessageEditorEvent,
 505        window: &mut Window,
 506        cx: &mut Context<Self>,
 507    ) {
 508        match event {
 509            MessageEditorEvent::Send => self.send(window, cx),
 510            MessageEditorEvent::Cancel => self.cancel_generation(cx),
 511            MessageEditorEvent::Focus => {
 512                self.cancel_editing(&Default::default(), window, cx);
 513            }
 514        }
 515    }
 516
 517    pub fn handle_entry_view_event(
 518        &mut self,
 519        _: &Entity<EntryViewState>,
 520        event: &EntryViewEvent,
 521        window: &mut Window,
 522        cx: &mut Context<Self>,
 523    ) {
 524        match &event.view_event {
 525            ViewEvent::MessageEditorEvent(_editor, MessageEditorEvent::Focus) => {
 526                self.editing_message = Some(event.entry_index);
 527                cx.notify();
 528            }
 529            ViewEvent::MessageEditorEvent(editor, MessageEditorEvent::Send) => {
 530                self.regenerate(event.entry_index, editor, window, cx);
 531            }
 532            ViewEvent::MessageEditorEvent(_editor, MessageEditorEvent::Cancel) => {
 533                self.cancel_editing(&Default::default(), window, cx);
 534            }
 535        }
 536    }
 537
 538    fn resume_chat(&mut self, cx: &mut Context<Self>) {
 539        self.thread_error.take();
 540        let Some(thread) = self.thread() else {
 541            return;
 542        };
 543
 544        let task = thread.update(cx, |thread, cx| thread.resume(cx));
 545        cx.spawn(async move |this, cx| {
 546            let result = task.await;
 547
 548            this.update(cx, |this, cx| {
 549                if let Err(err) = result {
 550                    this.handle_thread_error(err, cx);
 551                }
 552            })
 553        })
 554        .detach();
 555    }
 556
 557    fn send(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 558        if let Some(thread) = self.thread()
 559            && thread.read(cx).status() != ThreadStatus::Idle
 560        {
 561            self.stop_current_and_send_new_message(window, cx);
 562            return;
 563        }
 564
 565        let contents = self
 566            .message_editor
 567            .update(cx, |message_editor, cx| message_editor.contents(window, cx));
 568        self.send_impl(contents, window, cx)
 569    }
 570
 571    fn stop_current_and_send_new_message(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 572        let Some(thread) = self.thread().cloned() else {
 573            return;
 574        };
 575
 576        let cancelled = thread.update(cx, |thread, cx| thread.cancel(cx));
 577
 578        let contents = self
 579            .message_editor
 580            .update(cx, |message_editor, cx| message_editor.contents(window, cx));
 581
 582        cx.spawn_in(window, async move |this, cx| {
 583            cancelled.await;
 584
 585            this.update_in(cx, |this, window, cx| {
 586                this.send_impl(contents, window, cx);
 587            })
 588            .ok();
 589        })
 590        .detach();
 591    }
 592
 593    fn send_impl(
 594        &mut self,
 595        contents: Task<anyhow::Result<Vec<acp::ContentBlock>>>,
 596        window: &mut Window,
 597        cx: &mut Context<Self>,
 598    ) {
 599        self.thread_error.take();
 600        self.editing_message.take();
 601
 602        let Some(thread) = self.thread().cloned() else {
 603            return;
 604        };
 605        let task = cx.spawn_in(window, async move |this, cx| {
 606            let contents = contents.await?;
 607
 608            if contents.is_empty() {
 609                return Ok(());
 610            }
 611
 612            this.update_in(cx, |this, window, cx| {
 613                this.set_editor_is_expanded(false, cx);
 614                this.scroll_to_bottom(cx);
 615                this.message_editor.update(cx, |message_editor, cx| {
 616                    message_editor.clear(window, cx);
 617                });
 618            })?;
 619            let send = thread.update(cx, |thread, cx| thread.send(contents, cx))?;
 620            send.await
 621        });
 622
 623        cx.spawn(async move |this, cx| {
 624            if let Err(err) = task.await {
 625                this.update(cx, |this, cx| {
 626                    this.handle_thread_error(err, cx);
 627                })
 628                .ok();
 629            }
 630        })
 631        .detach();
 632    }
 633
 634    fn cancel_editing(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
 635        let Some(thread) = self.thread().cloned() else {
 636            return;
 637        };
 638
 639        if let Some(index) = self.editing_message.take()
 640            && let Some(editor) = self
 641                .entry_view_state
 642                .read(cx)
 643                .entry(index)
 644                .and_then(|e| e.message_editor())
 645                .cloned()
 646        {
 647            editor.update(cx, |editor, cx| {
 648                if let Some(user_message) = thread
 649                    .read(cx)
 650                    .entries()
 651                    .get(index)
 652                    .and_then(|e| e.user_message())
 653                {
 654                    editor.set_message(user_message.chunks.clone(), window, cx);
 655                }
 656            })
 657        };
 658        self.focus_handle(cx).focus(window);
 659        cx.notify();
 660    }
 661
 662    fn regenerate(
 663        &mut self,
 664        entry_ix: usize,
 665        message_editor: &Entity<MessageEditor>,
 666        window: &mut Window,
 667        cx: &mut Context<Self>,
 668    ) {
 669        let Some(thread) = self.thread().cloned() else {
 670            return;
 671        };
 672
 673        let Some(rewind) = thread.update(cx, |thread, cx| {
 674            let user_message_id = thread.entries().get(entry_ix)?.user_message()?.id.clone()?;
 675            Some(thread.rewind(user_message_id, cx))
 676        }) else {
 677            return;
 678        };
 679
 680        let contents =
 681            message_editor.update(cx, |message_editor, cx| message_editor.contents(window, cx));
 682
 683        let task = cx.foreground_executor().spawn(async move {
 684            rewind.await?;
 685            contents.await
 686        });
 687        self.send_impl(task, window, cx);
 688    }
 689
 690    fn open_agent_diff(&mut self, _: &OpenAgentDiff, window: &mut Window, cx: &mut Context<Self>) {
 691        if let Some(thread) = self.thread() {
 692            AgentDiffPane::deploy(thread.clone(), self.workspace.clone(), window, cx).log_err();
 693        }
 694    }
 695
 696    fn open_edited_buffer(
 697        &mut self,
 698        buffer: &Entity<Buffer>,
 699        window: &mut Window,
 700        cx: &mut Context<Self>,
 701    ) {
 702        let Some(thread) = self.thread() else {
 703            return;
 704        };
 705
 706        let Some(diff) =
 707            AgentDiffPane::deploy(thread.clone(), self.workspace.clone(), window, cx).log_err()
 708        else {
 709            return;
 710        };
 711
 712        diff.update(cx, |diff, cx| {
 713            diff.move_to_path(PathKey::for_buffer(buffer, cx), window, cx)
 714        })
 715    }
 716
 717    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
 718        let Some(thread) = self.as_native_thread(cx) else {
 719            return;
 720        };
 721        let project_context = thread.read(cx).project_context().read(cx);
 722
 723        let project_entry_ids = project_context
 724            .worktrees
 725            .iter()
 726            .flat_map(|worktree| worktree.rules_file.as_ref())
 727            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
 728            .collect::<Vec<_>>();
 729
 730        self.workspace
 731            .update(cx, move |workspace, cx| {
 732                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
 733                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
 734                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
 735                let project = workspace.project().read(cx);
 736                let project_paths = project_entry_ids
 737                    .into_iter()
 738                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
 739                    .collect::<Vec<_>>();
 740                for project_path in project_paths {
 741                    workspace
 742                        .open_path(project_path, None, true, window, cx)
 743                        .detach_and_log_err(cx);
 744                }
 745            })
 746            .ok();
 747    }
 748
 749    fn handle_thread_error(&mut self, error: anyhow::Error, cx: &mut Context<Self>) {
 750        self.thread_error = Some(ThreadError::from_err(error));
 751        cx.notify();
 752    }
 753
 754    fn clear_thread_error(&mut self, cx: &mut Context<Self>) {
 755        self.thread_error = None;
 756        cx.notify();
 757    }
 758
 759    fn handle_thread_event(
 760        &mut self,
 761        thread: &Entity<AcpThread>,
 762        event: &AcpThreadEvent,
 763        window: &mut Window,
 764        cx: &mut Context<Self>,
 765    ) {
 766        match event {
 767            AcpThreadEvent::NewEntry => {
 768                let len = thread.read(cx).entries().len();
 769                let index = len - 1;
 770                self.entry_view_state.update(cx, |view_state, cx| {
 771                    view_state.sync_entry(index, thread, window, cx)
 772                });
 773                self.list_state.splice(index..index, 1);
 774            }
 775            AcpThreadEvent::EntryUpdated(index) => {
 776                self.entry_view_state.update(cx, |view_state, cx| {
 777                    view_state.sync_entry(*index, thread, window, cx)
 778                });
 779                self.list_state.splice(*index..index + 1, 1);
 780            }
 781            AcpThreadEvent::EntriesRemoved(range) => {
 782                self.entry_view_state
 783                    .update(cx, |view_state, _cx| view_state.remove(range.clone()));
 784                self.list_state.splice(range.clone(), 0);
 785            }
 786            AcpThreadEvent::ToolAuthorizationRequired => {
 787                self.notify_with_sound("Waiting for tool confirmation", IconName::Info, window, cx);
 788            }
 789            AcpThreadEvent::Retry(retry) => {
 790                self.thread_retry_status = Some(retry.clone());
 791            }
 792            AcpThreadEvent::Stopped => {
 793                self.thread_retry_status.take();
 794                let used_tools = thread.read(cx).used_tools_since_last_user_message();
 795                self.notify_with_sound(
 796                    if used_tools {
 797                        "Finished running tools"
 798                    } else {
 799                        "New message"
 800                    },
 801                    IconName::ZedAssistant,
 802                    window,
 803                    cx,
 804                );
 805            }
 806            AcpThreadEvent::Error => {
 807                self.thread_retry_status.take();
 808                self.notify_with_sound(
 809                    "Agent stopped due to an error",
 810                    IconName::Warning,
 811                    window,
 812                    cx,
 813                );
 814            }
 815            AcpThreadEvent::ServerExited(status) => {
 816                self.thread_retry_status.take();
 817                self.thread_state = ThreadState::ServerExited { status: *status };
 818            }
 819            AcpThreadEvent::TitleUpdated | AcpThreadEvent::TokenUsageUpdated => {}
 820        }
 821        cx.notify();
 822    }
 823
 824    fn authenticate(
 825        &mut self,
 826        method: acp::AuthMethodId,
 827        window: &mut Window,
 828        cx: &mut Context<Self>,
 829    ) {
 830        let ThreadState::Unauthenticated { ref connection, .. } = self.thread_state else {
 831            return;
 832        };
 833
 834        self.thread_error.take();
 835        let authenticate = connection.authenticate(method, cx);
 836        self.auth_task = Some(cx.spawn_in(window, {
 837            let project = self.project.clone();
 838            let agent = self.agent.clone();
 839            async move |this, cx| {
 840                let result = authenticate.await;
 841
 842                this.update_in(cx, |this, window, cx| {
 843                    if let Err(err) = result {
 844                        this.handle_thread_error(err, cx);
 845                    } else {
 846                        this.thread_state = Self::initial_state(
 847                            agent,
 848                            None,
 849                            this.workspace.clone(),
 850                            project.clone(),
 851                            window,
 852                            cx,
 853                        )
 854                    }
 855                    this.auth_task.take()
 856                })
 857                .ok();
 858            }
 859        }));
 860    }
 861
 862    fn authorize_tool_call(
 863        &mut self,
 864        tool_call_id: acp::ToolCallId,
 865        option_id: acp::PermissionOptionId,
 866        option_kind: acp::PermissionOptionKind,
 867        cx: &mut Context<Self>,
 868    ) {
 869        let Some(thread) = self.thread() else {
 870            return;
 871        };
 872        thread.update(cx, |thread, cx| {
 873            thread.authorize_tool_call(tool_call_id, option_id, option_kind, cx);
 874        });
 875        cx.notify();
 876    }
 877
 878    fn rewind(&mut self, message_id: &UserMessageId, cx: &mut Context<Self>) {
 879        let Some(thread) = self.thread() else {
 880            return;
 881        };
 882        thread
 883            .update(cx, |thread, cx| thread.rewind(message_id.clone(), cx))
 884            .detach_and_log_err(cx);
 885        cx.notify();
 886    }
 887
 888    fn render_entry(
 889        &self,
 890        entry_ix: usize,
 891        total_entries: usize,
 892        entry: &AgentThreadEntry,
 893        window: &mut Window,
 894        cx: &Context<Self>,
 895    ) -> AnyElement {
 896        let primary = match &entry {
 897            AgentThreadEntry::UserMessage(message) => {
 898                let Some(editor) = self
 899                    .entry_view_state
 900                    .read(cx)
 901                    .entry(entry_ix)
 902                    .and_then(|entry| entry.message_editor())
 903                    .cloned()
 904                else {
 905                    return Empty.into_any_element();
 906                };
 907
 908                let editing = self.editing_message == Some(entry_ix);
 909                let editor_focus = editor.focus_handle(cx).is_focused(window);
 910                let focus_border = cx.theme().colors().border_focused;
 911
 912                let rules_item = if entry_ix == 0 {
 913                    self.render_rules_item(cx)
 914                } else {
 915                    None
 916                };
 917
 918                div()
 919                    .id(("user_message", entry_ix))
 920                    .py_4()
 921                    .px_2()
 922                    .children(message.id.clone().and_then(|message_id| {
 923                        message.checkpoint.as_ref()?.show.then(|| {
 924                            Button::new("restore-checkpoint", "Restore Checkpoint")
 925                                .icon(IconName::Undo)
 926                                .icon_size(IconSize::XSmall)
 927                                .icon_position(IconPosition::Start)
 928                                .label_size(LabelSize::XSmall)
 929                                .on_click(cx.listener(move |this, _, _window, cx| {
 930                                    this.rewind(&message_id, cx);
 931                                }))
 932                        })
 933                    }))
 934                    .children(rules_item)
 935                    .child(
 936                        div()
 937                            .relative()
 938                            .child(
 939                                div()
 940                                    .p_3()
 941                                    .rounded_lg()
 942                                    .shadow_md()
 943                                    .bg(cx.theme().colors().editor_background)
 944                                    .border_1()
 945                                    .when(editing && !editor_focus, |this| this.border_dashed())
 946                                    .border_color(cx.theme().colors().border)
 947                                    .map(|this|{
 948                                        if editor_focus {
 949                                            this.border_color(focus_border)
 950                                        } else {
 951                                            this.hover(|s| s.border_color(focus_border.opacity(0.8)))
 952                                        }
 953                                    })
 954                                    .text_xs()
 955                                    .child(editor.clone().into_any_element()),
 956                            )
 957                            .when(editor_focus, |this|
 958                                this.child(
 959                                    h_flex()
 960                                        .absolute()
 961                                        .top_neg_3p5()
 962                                        .right_3()
 963                                        .gap_1()
 964                                        .rounded_sm()
 965                                        .border_1()
 966                                        .border_color(cx.theme().colors().border)
 967                                        .bg(cx.theme().colors().editor_background)
 968                                        .overflow_hidden()
 969                                        .child(
 970                                            IconButton::new("cancel", IconName::Close)
 971                                                .icon_color(Color::Error)
 972                                                .icon_size(IconSize::XSmall)
 973                                                .on_click(cx.listener(Self::cancel_editing))
 974                                        )
 975                                        .child(
 976                                            IconButton::new("regenerate", IconName::Return)
 977                                                .icon_color(Color::Muted)
 978                                                .icon_size(IconSize::XSmall)
 979                                                .tooltip(Tooltip::text(
 980                                                    "Editing will restart the thread from this point."
 981                                                ))
 982                                                .on_click(cx.listener({
 983                                                    let editor = editor.clone();
 984                                                    move |this, _, window, cx| {
 985                                                        this.regenerate(
 986                                                            entry_ix, &editor, window, cx,
 987                                                        );
 988                                                    }
 989                                                })),
 990                                        )
 991                                )
 992                            ),
 993                    )
 994                    .into_any()
 995            }
 996            AgentThreadEntry::AssistantMessage(AssistantMessage { chunks }) => {
 997                let style = default_markdown_style(false, window, cx);
 998                let message_body = v_flex()
 999                    .w_full()
1000                    .gap_2p5()
1001                    .children(chunks.iter().enumerate().filter_map(
1002                        |(chunk_ix, chunk)| match chunk {
1003                            AssistantMessageChunk::Message { block } => {
1004                                block.markdown().map(|md| {
1005                                    self.render_markdown(md.clone(), style.clone())
1006                                        .into_any_element()
1007                                })
1008                            }
1009                            AssistantMessageChunk::Thought { block } => {
1010                                block.markdown().map(|md| {
1011                                    self.render_thinking_block(
1012                                        entry_ix,
1013                                        chunk_ix,
1014                                        md.clone(),
1015                                        window,
1016                                        cx,
1017                                    )
1018                                    .into_any_element()
1019                                })
1020                            }
1021                        },
1022                    ))
1023                    .into_any();
1024
1025                v_flex()
1026                    .px_5()
1027                    .py_1()
1028                    .when(entry_ix + 1 == total_entries, |this| this.pb_4())
1029                    .w_full()
1030                    .text_ui(cx)
1031                    .child(message_body)
1032                    .into_any()
1033            }
1034            AgentThreadEntry::ToolCall(tool_call) => {
1035                let has_terminals = tool_call.terminals().next().is_some();
1036
1037                div().w_full().py_1p5().px_5().map(|this| {
1038                    if has_terminals {
1039                        this.children(tool_call.terminals().map(|terminal| {
1040                            self.render_terminal_tool_call(
1041                                entry_ix, terminal, tool_call, window, cx,
1042                            )
1043                        }))
1044                    } else {
1045                        this.child(self.render_tool_call(entry_ix, tool_call, window, cx))
1046                    }
1047                })
1048            }
1049            .into_any(),
1050        };
1051
1052        let Some(thread) = self.thread() else {
1053            return primary;
1054        };
1055
1056        let is_generating = matches!(thread.read(cx).status(), ThreadStatus::Generating);
1057        let primary = if entry_ix == total_entries - 1 && !is_generating {
1058            v_flex()
1059                .w_full()
1060                .child(primary)
1061                .child(self.render_thread_controls(cx))
1062                .into_any_element()
1063        } else {
1064            primary
1065        };
1066
1067        if let Some(editing_index) = self.editing_message.as_ref()
1068            && *editing_index < entry_ix
1069        {
1070            div()
1071                .child(primary)
1072                .opacity(0.2)
1073                .block_mouse_except_scroll()
1074                .id("overlay")
1075                .on_click(cx.listener(Self::cancel_editing))
1076                .into_any_element()
1077        } else {
1078            primary
1079        }
1080    }
1081
1082    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
1083        cx.theme()
1084            .colors()
1085            .element_background
1086            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
1087    }
1088
1089    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
1090        cx.theme().colors().border.opacity(0.6)
1091    }
1092
1093    fn tool_name_font_size(&self) -> Rems {
1094        rems_from_px(13.)
1095    }
1096
1097    fn render_thinking_block(
1098        &self,
1099        entry_ix: usize,
1100        chunk_ix: usize,
1101        chunk: Entity<Markdown>,
1102        window: &Window,
1103        cx: &Context<Self>,
1104    ) -> AnyElement {
1105        let header_id = SharedString::from(format!("thinking-block-header-{}", entry_ix));
1106        let card_header_id = SharedString::from("inner-card-header");
1107        let key = (entry_ix, chunk_ix);
1108        let is_open = self.expanded_thinking_blocks.contains(&key);
1109
1110        v_flex()
1111            .child(
1112                h_flex()
1113                    .id(header_id)
1114                    .group(&card_header_id)
1115                    .relative()
1116                    .w_full()
1117                    .gap_1p5()
1118                    .opacity(0.8)
1119                    .hover(|style| style.opacity(1.))
1120                    .child(
1121                        h_flex()
1122                            .size_4()
1123                            .justify_center()
1124                            .child(
1125                                div()
1126                                    .group_hover(&card_header_id, |s| s.invisible().w_0())
1127                                    .child(
1128                                        Icon::new(IconName::ToolThink)
1129                                            .size(IconSize::Small)
1130                                            .color(Color::Muted),
1131                                    ),
1132                            )
1133                            .child(
1134                                h_flex()
1135                                    .absolute()
1136                                    .inset_0()
1137                                    .invisible()
1138                                    .justify_center()
1139                                    .group_hover(&card_header_id, |s| s.visible())
1140                                    .child(
1141                                        Disclosure::new(("expand", entry_ix), is_open)
1142                                            .opened_icon(IconName::ChevronUp)
1143                                            .closed_icon(IconName::ChevronRight)
1144                                            .on_click(cx.listener({
1145                                                move |this, _event, _window, cx| {
1146                                                    if is_open {
1147                                                        this.expanded_thinking_blocks.remove(&key);
1148                                                    } else {
1149                                                        this.expanded_thinking_blocks.insert(key);
1150                                                    }
1151                                                    cx.notify();
1152                                                }
1153                                            })),
1154                                    ),
1155                            ),
1156                    )
1157                    .child(
1158                        div()
1159                            .text_size(self.tool_name_font_size())
1160                            .child("Thinking"),
1161                    )
1162                    .on_click(cx.listener({
1163                        move |this, _event, _window, cx| {
1164                            if is_open {
1165                                this.expanded_thinking_blocks.remove(&key);
1166                            } else {
1167                                this.expanded_thinking_blocks.insert(key);
1168                            }
1169                            cx.notify();
1170                        }
1171                    })),
1172            )
1173            .when(is_open, |this| {
1174                this.child(
1175                    div()
1176                        .relative()
1177                        .mt_1p5()
1178                        .ml(px(7.))
1179                        .pl_4()
1180                        .border_l_1()
1181                        .border_color(self.tool_card_border_color(cx))
1182                        .text_ui_sm(cx)
1183                        .child(
1184                            self.render_markdown(chunk, default_markdown_style(false, window, cx)),
1185                        ),
1186                )
1187            })
1188            .into_any_element()
1189    }
1190
1191    fn render_tool_call_icon(
1192        &self,
1193        group_name: SharedString,
1194        entry_ix: usize,
1195        is_collapsible: bool,
1196        is_open: bool,
1197        tool_call: &ToolCall,
1198        cx: &Context<Self>,
1199    ) -> Div {
1200        let tool_icon = Icon::new(match tool_call.kind {
1201            acp::ToolKind::Read => IconName::ToolRead,
1202            acp::ToolKind::Edit => IconName::ToolPencil,
1203            acp::ToolKind::Delete => IconName::ToolDeleteFile,
1204            acp::ToolKind::Move => IconName::ArrowRightLeft,
1205            acp::ToolKind::Search => IconName::ToolSearch,
1206            acp::ToolKind::Execute => IconName::ToolTerminal,
1207            acp::ToolKind::Think => IconName::ToolThink,
1208            acp::ToolKind::Fetch => IconName::ToolWeb,
1209            acp::ToolKind::Other => IconName::ToolHammer,
1210        })
1211        .size(IconSize::Small)
1212        .color(Color::Muted);
1213
1214        let base_container = h_flex().size_4().justify_center();
1215
1216        if is_collapsible {
1217            base_container
1218                .child(
1219                    div()
1220                        .group_hover(&group_name, |s| s.invisible().w_0())
1221                        .child(tool_icon),
1222                )
1223                .child(
1224                    h_flex()
1225                        .absolute()
1226                        .inset_0()
1227                        .invisible()
1228                        .justify_center()
1229                        .group_hover(&group_name, |s| s.visible())
1230                        .child(
1231                            Disclosure::new(("expand", entry_ix), is_open)
1232                                .opened_icon(IconName::ChevronUp)
1233                                .closed_icon(IconName::ChevronRight)
1234                                .on_click(cx.listener({
1235                                    let id = tool_call.id.clone();
1236                                    move |this: &mut Self, _, _, cx: &mut Context<Self>| {
1237                                        if is_open {
1238                                            this.expanded_tool_calls.remove(&id);
1239                                        } else {
1240                                            this.expanded_tool_calls.insert(id.clone());
1241                                        }
1242                                        cx.notify();
1243                                    }
1244                                })),
1245                        ),
1246                )
1247        } else {
1248            base_container.child(tool_icon)
1249        }
1250    }
1251
1252    fn render_tool_call(
1253        &self,
1254        entry_ix: usize,
1255        tool_call: &ToolCall,
1256        window: &Window,
1257        cx: &Context<Self>,
1258    ) -> Div {
1259        let header_id = SharedString::from(format!("outer-tool-call-header-{}", entry_ix));
1260        let card_header_id = SharedString::from("inner-tool-call-header");
1261
1262        let status_icon = match &tool_call.status {
1263            ToolCallStatus::Pending
1264            | ToolCallStatus::WaitingForConfirmation { .. }
1265            | ToolCallStatus::Completed => None,
1266            ToolCallStatus::InProgress => Some(
1267                Icon::new(IconName::ArrowCircle)
1268                    .color(Color::Accent)
1269                    .size(IconSize::Small)
1270                    .with_animation(
1271                        "running",
1272                        Animation::new(Duration::from_secs(2)).repeat(),
1273                        |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
1274                    )
1275                    .into_any(),
1276            ),
1277            ToolCallStatus::Rejected | ToolCallStatus::Canceled | ToolCallStatus::Failed => Some(
1278                Icon::new(IconName::Close)
1279                    .color(Color::Error)
1280                    .size(IconSize::Small)
1281                    .into_any_element(),
1282            ),
1283        };
1284
1285        let needs_confirmation = matches!(
1286            tool_call.status,
1287            ToolCallStatus::WaitingForConfirmation { .. }
1288        );
1289        let is_edit = matches!(tool_call.kind, acp::ToolKind::Edit);
1290        let has_diff = tool_call
1291            .content
1292            .iter()
1293            .any(|content| matches!(content, ToolCallContent::Diff { .. }));
1294        let has_nonempty_diff = tool_call.content.iter().any(|content| match content {
1295            ToolCallContent::Diff(diff) => diff.read(cx).has_revealed_range(cx),
1296            _ => false,
1297        });
1298        let use_card_layout = needs_confirmation || is_edit || has_diff;
1299
1300        let is_collapsible = !tool_call.content.is_empty() && !use_card_layout;
1301
1302        let is_open = tool_call.content.is_empty()
1303            || needs_confirmation
1304            || has_nonempty_diff
1305            || self.expanded_tool_calls.contains(&tool_call.id);
1306
1307        let gradient_overlay = |color: Hsla| {
1308            div()
1309                .absolute()
1310                .top_0()
1311                .right_0()
1312                .w_12()
1313                .h_full()
1314                .bg(linear_gradient(
1315                    90.,
1316                    linear_color_stop(color, 1.),
1317                    linear_color_stop(color.opacity(0.2), 0.),
1318                ))
1319        };
1320        let gradient_color = if use_card_layout {
1321            self.tool_card_header_bg(cx)
1322        } else {
1323            cx.theme().colors().panel_background
1324        };
1325
1326        let tool_output_display = match &tool_call.status {
1327            ToolCallStatus::WaitingForConfirmation { options, .. } => v_flex()
1328                .w_full()
1329                .children(tool_call.content.iter().map(|content| {
1330                    div()
1331                        .child(
1332                            self.render_tool_call_content(entry_ix, content, tool_call, window, cx),
1333                        )
1334                        .into_any_element()
1335                }))
1336                .child(self.render_permission_buttons(
1337                    options,
1338                    entry_ix,
1339                    tool_call.id.clone(),
1340                    tool_call.content.is_empty(),
1341                    cx,
1342                )),
1343            ToolCallStatus::Pending
1344            | ToolCallStatus::InProgress
1345            | ToolCallStatus::Completed
1346            | ToolCallStatus::Failed
1347            | ToolCallStatus::Canceled => {
1348                v_flex()
1349                    .w_full()
1350                    .children(tool_call.content.iter().map(|content| {
1351                        div()
1352                            .child(
1353                                self.render_tool_call_content(
1354                                    entry_ix, content, tool_call, window, cx,
1355                                ),
1356                            )
1357                            .into_any_element()
1358                    }))
1359            }
1360            ToolCallStatus::Rejected => v_flex().size_0(),
1361        };
1362
1363        v_flex()
1364            .when(use_card_layout, |this| {
1365                this.rounded_lg()
1366                    .border_1()
1367                    .border_color(self.tool_card_border_color(cx))
1368                    .bg(cx.theme().colors().editor_background)
1369                    .overflow_hidden()
1370            })
1371            .child(
1372                h_flex()
1373                    .id(header_id)
1374                    .w_full()
1375                    .gap_1()
1376                    .justify_between()
1377                    .map(|this| {
1378                        if use_card_layout {
1379                            this.pl_2()
1380                                .pr_1()
1381                                .py_1()
1382                                .rounded_t_md()
1383                                .bg(self.tool_card_header_bg(cx))
1384                        } else {
1385                            this.opacity(0.8).hover(|style| style.opacity(1.))
1386                        }
1387                    })
1388                    .child(
1389                        h_flex()
1390                            .group(&card_header_id)
1391                            .relative()
1392                            .w_full()
1393                            .text_size(self.tool_name_font_size())
1394                            .child(self.render_tool_call_icon(
1395                                card_header_id,
1396                                entry_ix,
1397                                is_collapsible,
1398                                is_open,
1399                                tool_call,
1400                                cx,
1401                            ))
1402                            .child(if tool_call.locations.len() == 1 {
1403                                let name = tool_call.locations[0]
1404                                    .path
1405                                    .file_name()
1406                                    .unwrap_or_default()
1407                                    .display()
1408                                    .to_string();
1409
1410                                h_flex()
1411                                    .id(("open-tool-call-location", entry_ix))
1412                                    .w_full()
1413                                    .max_w_full()
1414                                    .px_1p5()
1415                                    .rounded_sm()
1416                                    .overflow_x_scroll()
1417                                    .opacity(0.8)
1418                                    .hover(|label| {
1419                                        label.opacity(1.).bg(cx
1420                                            .theme()
1421                                            .colors()
1422                                            .element_hover
1423                                            .opacity(0.5))
1424                                    })
1425                                    .child(name)
1426                                    .tooltip(Tooltip::text("Jump to File"))
1427                                    .on_click(cx.listener(move |this, _, window, cx| {
1428                                        this.open_tool_call_location(entry_ix, 0, window, cx);
1429                                    }))
1430                                    .into_any_element()
1431                            } else {
1432                                h_flex()
1433                                    .id("non-card-label-container")
1434                                    .w_full()
1435                                    .relative()
1436                                    .ml_1p5()
1437                                    .overflow_hidden()
1438                                    .child(
1439                                        h_flex()
1440                                            .id("non-card-label")
1441                                            .pr_8()
1442                                            .w_full()
1443                                            .overflow_x_scroll()
1444                                            .child(self.render_markdown(
1445                                                tool_call.label.clone(),
1446                                                default_markdown_style(
1447                                                    needs_confirmation || is_edit || has_diff,
1448                                                    window,
1449                                                    cx,
1450                                                ),
1451                                            )),
1452                                    )
1453                                    .child(gradient_overlay(gradient_color))
1454                                    .on_click(cx.listener({
1455                                        let id = tool_call.id.clone();
1456                                        move |this: &mut Self, _, _, cx: &mut Context<Self>| {
1457                                            if is_open {
1458                                                this.expanded_tool_calls.remove(&id);
1459                                            } else {
1460                                                this.expanded_tool_calls.insert(id.clone());
1461                                            }
1462                                            cx.notify();
1463                                        }
1464                                    }))
1465                                    .into_any()
1466                            }),
1467                    )
1468                    .children(status_icon),
1469            )
1470            .when(is_open, |this| this.child(tool_output_display))
1471    }
1472
1473    fn render_tool_call_content(
1474        &self,
1475        entry_ix: usize,
1476        content: &ToolCallContent,
1477        tool_call: &ToolCall,
1478        window: &Window,
1479        cx: &Context<Self>,
1480    ) -> AnyElement {
1481        match content {
1482            ToolCallContent::ContentBlock(content) => {
1483                if let Some(resource_link) = content.resource_link() {
1484                    self.render_resource_link(resource_link, cx)
1485                } else if let Some(markdown) = content.markdown() {
1486                    self.render_markdown_output(markdown.clone(), tool_call.id.clone(), window, cx)
1487                } else {
1488                    Empty.into_any_element()
1489                }
1490            }
1491            ToolCallContent::Diff(diff) => self.render_diff_editor(entry_ix, diff, cx),
1492            ToolCallContent::Terminal(terminal) => {
1493                self.render_terminal_tool_call(entry_ix, terminal, tool_call, window, cx)
1494            }
1495        }
1496    }
1497
1498    fn render_markdown_output(
1499        &self,
1500        markdown: Entity<Markdown>,
1501        tool_call_id: acp::ToolCallId,
1502        window: &Window,
1503        cx: &Context<Self>,
1504    ) -> AnyElement {
1505        let button_id = SharedString::from(format!("tool_output-{:?}", tool_call_id.clone()));
1506
1507        v_flex()
1508            .mt_1p5()
1509            .ml(px(7.))
1510            .px_3p5()
1511            .gap_2()
1512            .border_l_1()
1513            .border_color(self.tool_card_border_color(cx))
1514            .text_sm()
1515            .text_color(cx.theme().colors().text_muted)
1516            .child(self.render_markdown(markdown, default_markdown_style(false, window, cx)))
1517            .child(
1518                Button::new(button_id, "Collapse Output")
1519                    .full_width()
1520                    .style(ButtonStyle::Outlined)
1521                    .label_size(LabelSize::Small)
1522                    .icon(IconName::ChevronUp)
1523                    .icon_color(Color::Muted)
1524                    .icon_position(IconPosition::Start)
1525                    .on_click(cx.listener({
1526                        let id = tool_call_id.clone();
1527                        move |this: &mut Self, _, _, cx: &mut Context<Self>| {
1528                            this.expanded_tool_calls.remove(&id);
1529                            cx.notify();
1530                        }
1531                    })),
1532            )
1533            .into_any_element()
1534    }
1535
1536    fn render_resource_link(
1537        &self,
1538        resource_link: &acp::ResourceLink,
1539        cx: &Context<Self>,
1540    ) -> AnyElement {
1541        let uri: SharedString = resource_link.uri.clone().into();
1542
1543        let label: SharedString = if let Some(path) = resource_link.uri.strip_prefix("file://") {
1544            path.to_string().into()
1545        } else {
1546            uri.clone()
1547        };
1548
1549        let button_id = SharedString::from(format!("item-{}", uri.clone()));
1550
1551        div()
1552            .ml(px(7.))
1553            .pl_2p5()
1554            .border_l_1()
1555            .border_color(self.tool_card_border_color(cx))
1556            .overflow_hidden()
1557            .child(
1558                Button::new(button_id, label)
1559                    .label_size(LabelSize::Small)
1560                    .color(Color::Muted)
1561                    .icon(IconName::ArrowUpRight)
1562                    .icon_size(IconSize::XSmall)
1563                    .icon_color(Color::Muted)
1564                    .truncate(true)
1565                    .on_click(cx.listener({
1566                        let workspace = self.workspace.clone();
1567                        move |_, _, window, cx: &mut Context<Self>| {
1568                            Self::open_link(uri.clone(), &workspace, window, cx);
1569                        }
1570                    })),
1571            )
1572            .into_any_element()
1573    }
1574
1575    fn render_permission_buttons(
1576        &self,
1577        options: &[acp::PermissionOption],
1578        entry_ix: usize,
1579        tool_call_id: acp::ToolCallId,
1580        empty_content: bool,
1581        cx: &Context<Self>,
1582    ) -> Div {
1583        h_flex()
1584            .py_1()
1585            .pl_2()
1586            .pr_1()
1587            .gap_1()
1588            .justify_between()
1589            .flex_wrap()
1590            .when(!empty_content, |this| {
1591                this.border_t_1()
1592                    .border_color(self.tool_card_border_color(cx))
1593            })
1594            .child(
1595                div()
1596                    .min_w(rems_from_px(145.))
1597                    .child(LoadingLabel::new("Waiting for Confirmation").size(LabelSize::Small)),
1598            )
1599            .child(h_flex().gap_0p5().children(options.iter().map(|option| {
1600                let option_id = SharedString::from(option.id.0.clone());
1601                Button::new((option_id, entry_ix), option.name.clone())
1602                    .map(|this| match option.kind {
1603                        acp::PermissionOptionKind::AllowOnce => {
1604                            this.icon(IconName::Check).icon_color(Color::Success)
1605                        }
1606                        acp::PermissionOptionKind::AllowAlways => {
1607                            this.icon(IconName::CheckDouble).icon_color(Color::Success)
1608                        }
1609                        acp::PermissionOptionKind::RejectOnce => {
1610                            this.icon(IconName::Close).icon_color(Color::Error)
1611                        }
1612                        acp::PermissionOptionKind::RejectAlways => {
1613                            this.icon(IconName::Close).icon_color(Color::Error)
1614                        }
1615                    })
1616                    .icon_position(IconPosition::Start)
1617                    .icon_size(IconSize::XSmall)
1618                    .label_size(LabelSize::Small)
1619                    .on_click(cx.listener({
1620                        let tool_call_id = tool_call_id.clone();
1621                        let option_id = option.id.clone();
1622                        let option_kind = option.kind;
1623                        move |this, _, _, cx| {
1624                            this.authorize_tool_call(
1625                                tool_call_id.clone(),
1626                                option_id.clone(),
1627                                option_kind,
1628                                cx,
1629                            );
1630                        }
1631                    }))
1632            })))
1633    }
1634
1635    fn render_diff_editor(
1636        &self,
1637        entry_ix: usize,
1638        diff: &Entity<acp_thread::Diff>,
1639        cx: &Context<Self>,
1640    ) -> AnyElement {
1641        v_flex()
1642            .h_full()
1643            .border_t_1()
1644            .border_color(self.tool_card_border_color(cx))
1645            .child(
1646                if let Some(entry) = self.entry_view_state.read(cx).entry(entry_ix)
1647                    && let Some(editor) = entry.editor_for_diff(diff)
1648                {
1649                    editor.clone().into_any_element()
1650                } else {
1651                    Empty.into_any()
1652                },
1653            )
1654            .into_any()
1655    }
1656
1657    fn render_terminal_tool_call(
1658        &self,
1659        entry_ix: usize,
1660        terminal: &Entity<acp_thread::Terminal>,
1661        tool_call: &ToolCall,
1662        window: &Window,
1663        cx: &Context<Self>,
1664    ) -> AnyElement {
1665        let terminal_data = terminal.read(cx);
1666        let working_dir = terminal_data.working_dir();
1667        let command = terminal_data.command();
1668        let started_at = terminal_data.started_at();
1669
1670        let tool_failed = matches!(
1671            &tool_call.status,
1672            ToolCallStatus::Rejected | ToolCallStatus::Canceled | ToolCallStatus::Failed
1673        );
1674
1675        let output = terminal_data.output();
1676        let command_finished = output.is_some();
1677        let truncated_output = output.is_some_and(|output| output.was_content_truncated);
1678        let output_line_count = output.map(|output| output.content_line_count).unwrap_or(0);
1679
1680        let command_failed = command_finished
1681            && output.is_some_and(|o| o.exit_status.is_none_or(|status| !status.success()));
1682
1683        let time_elapsed = if let Some(output) = output {
1684            output.ended_at.duration_since(started_at)
1685        } else {
1686            started_at.elapsed()
1687        };
1688
1689        let header_bg = cx
1690            .theme()
1691            .colors()
1692            .element_background
1693            .blend(cx.theme().colors().editor_foreground.opacity(0.025));
1694        let border_color = cx.theme().colors().border.opacity(0.6);
1695
1696        let working_dir = working_dir
1697            .as_ref()
1698            .map(|path| format!("{}", path.display()))
1699            .unwrap_or_else(|| "current directory".to_string());
1700
1701        let header = h_flex()
1702            .id(SharedString::from(format!(
1703                "terminal-tool-header-{}",
1704                terminal.entity_id()
1705            )))
1706            .flex_none()
1707            .gap_1()
1708            .justify_between()
1709            .rounded_t_md()
1710            .child(
1711                div()
1712                    .id(("command-target-path", terminal.entity_id()))
1713                    .w_full()
1714                    .max_w_full()
1715                    .overflow_x_scroll()
1716                    .child(
1717                        Label::new(working_dir)
1718                            .buffer_font(cx)
1719                            .size(LabelSize::XSmall)
1720                            .color(Color::Muted),
1721                    ),
1722            )
1723            .when(!command_finished, |header| {
1724                header
1725                    .gap_1p5()
1726                    .child(
1727                        Button::new(
1728                            SharedString::from(format!("stop-terminal-{}", terminal.entity_id())),
1729                            "Stop",
1730                        )
1731                        .icon(IconName::Stop)
1732                        .icon_position(IconPosition::Start)
1733                        .icon_size(IconSize::Small)
1734                        .icon_color(Color::Error)
1735                        .label_size(LabelSize::Small)
1736                        .tooltip(move |window, cx| {
1737                            Tooltip::with_meta(
1738                                "Stop This Command",
1739                                None,
1740                                "Also possible by placing your cursor inside the terminal and using regular terminal bindings.",
1741                                window,
1742                                cx,
1743                            )
1744                        })
1745                        .on_click({
1746                            let terminal = terminal.clone();
1747                            cx.listener(move |_this, _event, _window, cx| {
1748                                let inner_terminal = terminal.read(cx).inner().clone();
1749                                inner_terminal.update(cx, |inner_terminal, _cx| {
1750                                    inner_terminal.kill_active_task();
1751                                });
1752                            })
1753                        }),
1754                    )
1755                    .child(Divider::vertical())
1756                    .child(
1757                        Icon::new(IconName::ArrowCircle)
1758                            .size(IconSize::XSmall)
1759                            .color(Color::Info)
1760                            .with_animation(
1761                                "arrow-circle",
1762                                Animation::new(Duration::from_secs(2)).repeat(),
1763                                |icon, delta| {
1764                                    icon.transform(Transformation::rotate(percentage(delta)))
1765                                },
1766                            ),
1767                    )
1768            })
1769            .when(tool_failed || command_failed, |header| {
1770                header.child(
1771                    div()
1772                        .id(("terminal-tool-error-code-indicator", terminal.entity_id()))
1773                        .child(
1774                            Icon::new(IconName::Close)
1775                                .size(IconSize::Small)
1776                                .color(Color::Error),
1777                        )
1778                        .when_some(output.and_then(|o| o.exit_status), |this, status| {
1779                            this.tooltip(Tooltip::text(format!(
1780                                "Exited with code {}",
1781                                status.code().unwrap_or(-1),
1782                            )))
1783                        }),
1784                )
1785            })
1786            .when(truncated_output, |header| {
1787                let tooltip = if let Some(output) = output {
1788                    if output_line_count + 10 > terminal::MAX_SCROLL_HISTORY_LINES {
1789                        "Output exceeded terminal max lines and was \
1790                            truncated, the model received the first 16 KB."
1791                            .to_string()
1792                    } else {
1793                        format!(
1794                            "Output is {} long—to avoid unexpected token usage, \
1795                                only 16 KB was sent back to the model.",
1796                            format_file_size(output.original_content_len as u64, true),
1797                        )
1798                    }
1799                } else {
1800                    "Output was truncated".to_string()
1801                };
1802
1803                header.child(
1804                    h_flex()
1805                        .id(("terminal-tool-truncated-label", terminal.entity_id()))
1806                        .gap_1()
1807                        .child(
1808                            Icon::new(IconName::Info)
1809                                .size(IconSize::XSmall)
1810                                .color(Color::Ignored),
1811                        )
1812                        .child(
1813                            Label::new("Truncated")
1814                                .color(Color::Muted)
1815                                .size(LabelSize::XSmall),
1816                        )
1817                        .tooltip(Tooltip::text(tooltip)),
1818                )
1819            })
1820            .when(time_elapsed > Duration::from_secs(10), |header| {
1821                header.child(
1822                    Label::new(format!("({})", duration_alt_display(time_elapsed)))
1823                        .buffer_font(cx)
1824                        .color(Color::Muted)
1825                        .size(LabelSize::XSmall),
1826                )
1827            })
1828            .child(
1829                Disclosure::new(
1830                    SharedString::from(format!(
1831                        "terminal-tool-disclosure-{}",
1832                        terminal.entity_id()
1833                    )),
1834                    self.terminal_expanded,
1835                )
1836                .opened_icon(IconName::ChevronUp)
1837                .closed_icon(IconName::ChevronDown)
1838                .on_click(cx.listener(move |this, _event, _window, _cx| {
1839                    this.terminal_expanded = !this.terminal_expanded;
1840                })),
1841            );
1842
1843        let terminal_view = self
1844            .entry_view_state
1845            .read(cx)
1846            .entry(entry_ix)
1847            .and_then(|entry| entry.terminal(terminal));
1848        let show_output = self.terminal_expanded && terminal_view.is_some();
1849
1850        v_flex()
1851            .mb_2()
1852            .border_1()
1853            .when(tool_failed || command_failed, |card| card.border_dashed())
1854            .border_color(border_color)
1855            .rounded_lg()
1856            .overflow_hidden()
1857            .child(
1858                v_flex()
1859                    .py_1p5()
1860                    .pl_2()
1861                    .pr_1p5()
1862                    .gap_0p5()
1863                    .bg(header_bg)
1864                    .text_xs()
1865                    .child(header)
1866                    .child(
1867                        MarkdownElement::new(
1868                            command.clone(),
1869                            terminal_command_markdown_style(window, cx),
1870                        )
1871                        .code_block_renderer(
1872                            markdown::CodeBlockRenderer::Default {
1873                                copy_button: false,
1874                                copy_button_on_hover: true,
1875                                border: false,
1876                            },
1877                        ),
1878                    ),
1879            )
1880            .when(show_output, |this| {
1881                this.child(
1882                    div()
1883                        .pt_2()
1884                        .border_t_1()
1885                        .when(tool_failed || command_failed, |card| card.border_dashed())
1886                        .border_color(border_color)
1887                        .bg(cx.theme().colors().editor_background)
1888                        .rounded_b_md()
1889                        .text_ui_sm(cx)
1890                        .children(terminal_view.clone()),
1891                )
1892            })
1893            .into_any()
1894    }
1895
1896    fn render_agent_logo(&self) -> AnyElement {
1897        Icon::new(self.agent.logo())
1898            .color(Color::Muted)
1899            .size(IconSize::XLarge)
1900            .into_any_element()
1901    }
1902
1903    fn render_error_agent_logo(&self) -> AnyElement {
1904        let logo = Icon::new(self.agent.logo())
1905            .color(Color::Muted)
1906            .size(IconSize::XLarge)
1907            .into_any_element();
1908
1909        h_flex()
1910            .relative()
1911            .justify_center()
1912            .child(div().opacity(0.3).child(logo))
1913            .child(
1914                h_flex().absolute().right_1().bottom_0().child(
1915                    Icon::new(IconName::XCircle)
1916                        .color(Color::Error)
1917                        .size(IconSize::Small),
1918                ),
1919            )
1920            .into_any_element()
1921    }
1922
1923    fn render_rules_item(&self, cx: &Context<Self>) -> Option<AnyElement> {
1924        let project_context = self
1925            .as_native_thread(cx)?
1926            .read(cx)
1927            .project_context()
1928            .read(cx);
1929
1930        let user_rules_text = if project_context.user_rules.is_empty() {
1931            None
1932        } else if project_context.user_rules.len() == 1 {
1933            let user_rules = &project_context.user_rules[0];
1934
1935            match user_rules.title.as_ref() {
1936                Some(title) => Some(format!("Using \"{title}\" user rule")),
1937                None => Some("Using user rule".into()),
1938            }
1939        } else {
1940            Some(format!(
1941                "Using {} user rules",
1942                project_context.user_rules.len()
1943            ))
1944        };
1945
1946        let first_user_rules_id = project_context
1947            .user_rules
1948            .first()
1949            .map(|user_rules| user_rules.uuid.0);
1950
1951        let rules_files = project_context
1952            .worktrees
1953            .iter()
1954            .filter_map(|worktree| worktree.rules_file.as_ref())
1955            .collect::<Vec<_>>();
1956
1957        let rules_file_text = match rules_files.as_slice() {
1958            &[] => None,
1959            &[rules_file] => Some(format!(
1960                "Using project {:?} file",
1961                rules_file.path_in_worktree
1962            )),
1963            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
1964        };
1965
1966        if user_rules_text.is_none() && rules_file_text.is_none() {
1967            return None;
1968        }
1969
1970        Some(
1971            v_flex()
1972                .pt_2()
1973                .px_2p5()
1974                .gap_1()
1975                .when_some(user_rules_text, |parent, user_rules_text| {
1976                    parent.child(
1977                        h_flex()
1978                            .w_full()
1979                            .child(
1980                                Icon::new(IconName::Reader)
1981                                    .size(IconSize::XSmall)
1982                                    .color(Color::Disabled),
1983                            )
1984                            .child(
1985                                Label::new(user_rules_text)
1986                                    .size(LabelSize::XSmall)
1987                                    .color(Color::Muted)
1988                                    .truncate()
1989                                    .buffer_font(cx)
1990                                    .ml_1p5()
1991                                    .mr_0p5(),
1992                            )
1993                            .child(
1994                                IconButton::new("open-prompt-library", IconName::ArrowUpRight)
1995                                    .shape(ui::IconButtonShape::Square)
1996                                    .icon_size(IconSize::XSmall)
1997                                    .icon_color(Color::Ignored)
1998                                    // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
1999                                    .tooltip(Tooltip::text("View User Rules"))
2000                                    .on_click(move |_event, window, cx| {
2001                                        window.dispatch_action(
2002                                            Box::new(OpenRulesLibrary {
2003                                                prompt_to_select: first_user_rules_id,
2004                                            }),
2005                                            cx,
2006                                        )
2007                                    }),
2008                            ),
2009                    )
2010                })
2011                .when_some(rules_file_text, |parent, rules_file_text| {
2012                    parent.child(
2013                        h_flex()
2014                            .w_full()
2015                            .child(
2016                                Icon::new(IconName::File)
2017                                    .size(IconSize::XSmall)
2018                                    .color(Color::Disabled),
2019                            )
2020                            .child(
2021                                Label::new(rules_file_text)
2022                                    .size(LabelSize::XSmall)
2023                                    .color(Color::Muted)
2024                                    .buffer_font(cx)
2025                                    .ml_1p5()
2026                                    .mr_0p5(),
2027                            )
2028                            .child(
2029                                IconButton::new("open-rule", IconName::ArrowUpRight)
2030                                    .shape(ui::IconButtonShape::Square)
2031                                    .icon_size(IconSize::XSmall)
2032                                    .icon_color(Color::Ignored)
2033                                    .on_click(cx.listener(Self::handle_open_rules))
2034                                    .tooltip(Tooltip::text("View Rules")),
2035                            ),
2036                    )
2037                })
2038                .into_any(),
2039        )
2040    }
2041
2042    fn render_empty_state(&self, cx: &App) -> AnyElement {
2043        let loading = matches!(&self.thread_state, ThreadState::Loading { .. });
2044
2045        v_flex()
2046            .size_full()
2047            .items_center()
2048            .justify_center()
2049            .child(if loading {
2050                h_flex()
2051                    .justify_center()
2052                    .child(self.render_agent_logo())
2053                    .with_animation(
2054                        "pulsating_icon",
2055                        Animation::new(Duration::from_secs(2))
2056                            .repeat()
2057                            .with_easing(pulsating_between(0.4, 1.0)),
2058                        |icon, delta| icon.opacity(delta),
2059                    )
2060                    .into_any()
2061            } else {
2062                self.render_agent_logo().into_any_element()
2063            })
2064            .child(h_flex().mt_4().mb_1().justify_center().child(if loading {
2065                div()
2066                    .child(LoadingLabel::new("").size(LabelSize::Large))
2067                    .into_any_element()
2068            } else {
2069                Headline::new(self.agent.empty_state_headline())
2070                    .size(HeadlineSize::Medium)
2071                    .into_any_element()
2072            }))
2073            .child(
2074                div()
2075                    .max_w_1_2()
2076                    .text_sm()
2077                    .text_center()
2078                    .map(|this| {
2079                        if loading {
2080                            this.invisible()
2081                        } else {
2082                            this.text_color(cx.theme().colors().text_muted)
2083                        }
2084                    })
2085                    .child(self.agent.empty_state_message()),
2086            )
2087            .into_any()
2088    }
2089
2090    fn render_auth_required_state(
2091        &self,
2092        connection: &Rc<dyn AgentConnection>,
2093        description: Option<&Entity<Markdown>>,
2094        configuration_view: Option<&AnyView>,
2095        window: &mut Window,
2096        cx: &Context<Self>,
2097    ) -> Div {
2098        v_flex()
2099            .p_2()
2100            .gap_2()
2101            .flex_1()
2102            .items_center()
2103            .justify_center()
2104            .child(
2105                v_flex()
2106                    .items_center()
2107                    .justify_center()
2108                    .child(self.render_error_agent_logo())
2109                    .child(
2110                        h_flex().mt_4().mb_1().justify_center().child(
2111                            Headline::new("Authentication Required").size(HeadlineSize::Medium),
2112                        ),
2113                    )
2114                    .into_any(),
2115            )
2116            .children(description.map(|desc| {
2117                div().text_ui(cx).text_center().child(
2118                    self.render_markdown(desc.clone(), default_markdown_style(false, window, cx)),
2119                )
2120            }))
2121            .children(
2122                configuration_view
2123                    .cloned()
2124                    .map(|view| div().px_4().w_full().max_w_128().child(view)),
2125            )
2126            .child(h_flex().mt_1p5().justify_center().children(
2127                connection.auth_methods().iter().map(|method| {
2128                    Button::new(SharedString::from(method.id.0.clone()), method.name.clone())
2129                        .on_click({
2130                            let method_id = method.id.clone();
2131                            cx.listener(move |this, _, window, cx| {
2132                                this.authenticate(method_id.clone(), window, cx)
2133                            })
2134                        })
2135                }),
2136            ))
2137    }
2138
2139    fn render_server_exited(&self, status: ExitStatus, _cx: &Context<Self>) -> AnyElement {
2140        v_flex()
2141            .items_center()
2142            .justify_center()
2143            .child(self.render_error_agent_logo())
2144            .child(
2145                v_flex()
2146                    .mt_4()
2147                    .mb_2()
2148                    .gap_0p5()
2149                    .text_center()
2150                    .items_center()
2151                    .child(Headline::new("Server exited unexpectedly").size(HeadlineSize::Medium))
2152                    .child(
2153                        Label::new(format!("Exit status: {}", status.code().unwrap_or(-127)))
2154                            .size(LabelSize::Small)
2155                            .color(Color::Muted),
2156                    ),
2157            )
2158            .into_any_element()
2159    }
2160
2161    fn render_load_error(&self, e: &LoadError, cx: &Context<Self>) -> AnyElement {
2162        let mut container = v_flex()
2163            .items_center()
2164            .justify_center()
2165            .child(self.render_error_agent_logo())
2166            .child(
2167                v_flex()
2168                    .mt_4()
2169                    .mb_2()
2170                    .gap_0p5()
2171                    .text_center()
2172                    .items_center()
2173                    .child(Headline::new("Failed to launch").size(HeadlineSize::Medium))
2174                    .child(
2175                        Label::new(e.to_string())
2176                            .size(LabelSize::Small)
2177                            .color(Color::Muted),
2178                    ),
2179            );
2180
2181        if let LoadError::Unsupported {
2182            upgrade_message,
2183            upgrade_command,
2184            ..
2185        } = &e
2186        {
2187            let upgrade_message = upgrade_message.clone();
2188            let upgrade_command = upgrade_command.clone();
2189            container = container.child(Button::new("upgrade", upgrade_message).on_click(
2190                cx.listener(move |this, _, window, cx| {
2191                    this.workspace
2192                        .update(cx, |workspace, cx| {
2193                            let project = workspace.project().read(cx);
2194                            let cwd = project.first_project_directory(cx);
2195                            let shell = project.terminal_settings(&cwd, cx).shell.clone();
2196                            let spawn_in_terminal = task::SpawnInTerminal {
2197                                id: task::TaskId("install".to_string()),
2198                                full_label: upgrade_command.clone(),
2199                                label: upgrade_command.clone(),
2200                                command: Some(upgrade_command.clone()),
2201                                args: Vec::new(),
2202                                command_label: upgrade_command.clone(),
2203                                cwd,
2204                                env: Default::default(),
2205                                use_new_terminal: true,
2206                                allow_concurrent_runs: true,
2207                                reveal: Default::default(),
2208                                reveal_target: Default::default(),
2209                                hide: Default::default(),
2210                                shell,
2211                                show_summary: true,
2212                                show_command: true,
2213                                show_rerun: false,
2214                            };
2215                            workspace
2216                                .spawn_in_terminal(spawn_in_terminal, window, cx)
2217                                .detach();
2218                        })
2219                        .ok();
2220                }),
2221            ));
2222        }
2223
2224        container.into_any()
2225    }
2226
2227    fn render_activity_bar(
2228        &self,
2229        thread_entity: &Entity<AcpThread>,
2230        window: &mut Window,
2231        cx: &Context<Self>,
2232    ) -> Option<AnyElement> {
2233        let thread = thread_entity.read(cx);
2234        let action_log = thread.action_log();
2235        let changed_buffers = action_log.read(cx).changed_buffers(cx);
2236        let plan = thread.plan();
2237
2238        if changed_buffers.is_empty() && plan.is_empty() {
2239            return None;
2240        }
2241
2242        let editor_bg_color = cx.theme().colors().editor_background;
2243        let active_color = cx.theme().colors().element_selected;
2244        let bg_edit_files_disclosure = editor_bg_color.blend(active_color.opacity(0.3));
2245
2246        let pending_edits = thread.has_pending_edit_tool_calls();
2247
2248        v_flex()
2249            .mt_1()
2250            .mx_2()
2251            .bg(bg_edit_files_disclosure)
2252            .border_1()
2253            .border_b_0()
2254            .border_color(cx.theme().colors().border)
2255            .rounded_t_md()
2256            .shadow(vec![gpui::BoxShadow {
2257                color: gpui::black().opacity(0.15),
2258                offset: point(px(1.), px(-1.)),
2259                blur_radius: px(3.),
2260                spread_radius: px(0.),
2261            }])
2262            .when(!plan.is_empty(), |this| {
2263                this.child(self.render_plan_summary(plan, window, cx))
2264                    .when(self.plan_expanded, |parent| {
2265                        parent.child(self.render_plan_entries(plan, window, cx))
2266                    })
2267            })
2268            .when(!plan.is_empty() && !changed_buffers.is_empty(), |this| {
2269                this.child(Divider::horizontal().color(DividerColor::Border))
2270            })
2271            .when(!changed_buffers.is_empty(), |this| {
2272                this.child(self.render_edits_summary(
2273                    action_log,
2274                    &changed_buffers,
2275                    self.edits_expanded,
2276                    pending_edits,
2277                    window,
2278                    cx,
2279                ))
2280                .when(self.edits_expanded, |parent| {
2281                    parent.child(self.render_edited_files(
2282                        action_log,
2283                        &changed_buffers,
2284                        pending_edits,
2285                        cx,
2286                    ))
2287                })
2288            })
2289            .into_any()
2290            .into()
2291    }
2292
2293    fn render_plan_summary(&self, plan: &Plan, window: &mut Window, cx: &Context<Self>) -> Div {
2294        let stats = plan.stats();
2295
2296        let title = if let Some(entry) = stats.in_progress_entry
2297            && !self.plan_expanded
2298        {
2299            h_flex()
2300                .w_full()
2301                .cursor_default()
2302                .gap_1()
2303                .text_xs()
2304                .text_color(cx.theme().colors().text_muted)
2305                .justify_between()
2306                .child(
2307                    h_flex()
2308                        .gap_1()
2309                        .child(
2310                            Label::new("Current:")
2311                                .size(LabelSize::Small)
2312                                .color(Color::Muted),
2313                        )
2314                        .child(MarkdownElement::new(
2315                            entry.content.clone(),
2316                            plan_label_markdown_style(&entry.status, window, cx),
2317                        )),
2318                )
2319                .when(stats.pending > 0, |this| {
2320                    this.child(
2321                        Label::new(format!("{} left", stats.pending))
2322                            .size(LabelSize::Small)
2323                            .color(Color::Muted)
2324                            .mr_1(),
2325                    )
2326                })
2327        } else {
2328            let status_label = if stats.pending == 0 {
2329                "All Done".to_string()
2330            } else if stats.completed == 0 {
2331                format!("{} Tasks", plan.entries.len())
2332            } else {
2333                format!("{}/{}", stats.completed, plan.entries.len())
2334            };
2335
2336            h_flex()
2337                .w_full()
2338                .gap_1()
2339                .justify_between()
2340                .child(
2341                    Label::new("Plan")
2342                        .size(LabelSize::Small)
2343                        .color(Color::Muted),
2344                )
2345                .child(
2346                    Label::new(status_label)
2347                        .size(LabelSize::Small)
2348                        .color(Color::Muted)
2349                        .mr_1(),
2350                )
2351        };
2352
2353        h_flex()
2354            .p_1()
2355            .justify_between()
2356            .when(self.plan_expanded, |this| {
2357                this.border_b_1().border_color(cx.theme().colors().border)
2358            })
2359            .child(
2360                h_flex()
2361                    .id("plan_summary")
2362                    .w_full()
2363                    .gap_1()
2364                    .child(Disclosure::new("plan_disclosure", self.plan_expanded))
2365                    .child(title)
2366                    .on_click(cx.listener(|this, _, _, cx| {
2367                        this.plan_expanded = !this.plan_expanded;
2368                        cx.notify();
2369                    })),
2370            )
2371    }
2372
2373    fn render_plan_entries(&self, plan: &Plan, window: &mut Window, cx: &Context<Self>) -> Div {
2374        v_flex().children(plan.entries.iter().enumerate().flat_map(|(index, entry)| {
2375            let element = h_flex()
2376                .py_1()
2377                .px_2()
2378                .gap_2()
2379                .justify_between()
2380                .bg(cx.theme().colors().editor_background)
2381                .when(index < plan.entries.len() - 1, |parent| {
2382                    parent.border_color(cx.theme().colors().border).border_b_1()
2383                })
2384                .child(
2385                    h_flex()
2386                        .id(("plan_entry", index))
2387                        .gap_1p5()
2388                        .max_w_full()
2389                        .overflow_x_scroll()
2390                        .text_xs()
2391                        .text_color(cx.theme().colors().text_muted)
2392                        .child(match entry.status {
2393                            acp::PlanEntryStatus::Pending => Icon::new(IconName::TodoPending)
2394                                .size(IconSize::Small)
2395                                .color(Color::Muted)
2396                                .into_any_element(),
2397                            acp::PlanEntryStatus::InProgress => Icon::new(IconName::TodoProgress)
2398                                .size(IconSize::Small)
2399                                .color(Color::Accent)
2400                                .with_animation(
2401                                    "running",
2402                                    Animation::new(Duration::from_secs(2)).repeat(),
2403                                    |icon, delta| {
2404                                        icon.transform(Transformation::rotate(percentage(delta)))
2405                                    },
2406                                )
2407                                .into_any_element(),
2408                            acp::PlanEntryStatus::Completed => Icon::new(IconName::TodoComplete)
2409                                .size(IconSize::Small)
2410                                .color(Color::Success)
2411                                .into_any_element(),
2412                        })
2413                        .child(MarkdownElement::new(
2414                            entry.content.clone(),
2415                            plan_label_markdown_style(&entry.status, window, cx),
2416                        )),
2417                );
2418
2419            Some(element)
2420        }))
2421    }
2422
2423    fn render_edits_summary(
2424        &self,
2425        action_log: &Entity<ActionLog>,
2426        changed_buffers: &BTreeMap<Entity<Buffer>, Entity<BufferDiff>>,
2427        expanded: bool,
2428        pending_edits: bool,
2429        window: &mut Window,
2430        cx: &Context<Self>,
2431    ) -> Div {
2432        const EDIT_NOT_READY_TOOLTIP_LABEL: &str = "Wait until file edits are complete.";
2433
2434        let focus_handle = self.focus_handle(cx);
2435
2436        h_flex()
2437            .p_1()
2438            .justify_between()
2439            .when(expanded, |this| {
2440                this.border_b_1().border_color(cx.theme().colors().border)
2441            })
2442            .child(
2443                h_flex()
2444                    .id("edits-container")
2445                    .w_full()
2446                    .gap_1()
2447                    .child(Disclosure::new("edits-disclosure", expanded))
2448                    .map(|this| {
2449                        if pending_edits {
2450                            this.child(
2451                                Label::new(format!(
2452                                    "Editing {} {}",
2453                                    changed_buffers.len(),
2454                                    if changed_buffers.len() == 1 {
2455                                        "file"
2456                                    } else {
2457                                        "files"
2458                                    }
2459                                ))
2460                                .color(Color::Muted)
2461                                .size(LabelSize::Small)
2462                                .with_animation(
2463                                    "edit-label",
2464                                    Animation::new(Duration::from_secs(2))
2465                                        .repeat()
2466                                        .with_easing(pulsating_between(0.3, 0.7)),
2467                                    |label, delta| label.alpha(delta),
2468                                ),
2469                            )
2470                        } else {
2471                            this.child(
2472                                Label::new("Edits")
2473                                    .size(LabelSize::Small)
2474                                    .color(Color::Muted),
2475                            )
2476                            .child(Label::new("").size(LabelSize::XSmall).color(Color::Muted))
2477                            .child(
2478                                Label::new(format!(
2479                                    "{} {}",
2480                                    changed_buffers.len(),
2481                                    if changed_buffers.len() == 1 {
2482                                        "file"
2483                                    } else {
2484                                        "files"
2485                                    }
2486                                ))
2487                                .size(LabelSize::Small)
2488                                .color(Color::Muted),
2489                            )
2490                        }
2491                    })
2492                    .on_click(cx.listener(|this, _, _, cx| {
2493                        this.edits_expanded = !this.edits_expanded;
2494                        cx.notify();
2495                    })),
2496            )
2497            .child(
2498                h_flex()
2499                    .gap_1()
2500                    .child(
2501                        IconButton::new("review-changes", IconName::ListTodo)
2502                            .icon_size(IconSize::Small)
2503                            .tooltip({
2504                                let focus_handle = focus_handle.clone();
2505                                move |window, cx| {
2506                                    Tooltip::for_action_in(
2507                                        "Review Changes",
2508                                        &OpenAgentDiff,
2509                                        &focus_handle,
2510                                        window,
2511                                        cx,
2512                                    )
2513                                }
2514                            })
2515                            .on_click(cx.listener(|_, _, window, cx| {
2516                                window.dispatch_action(OpenAgentDiff.boxed_clone(), cx);
2517                            })),
2518                    )
2519                    .child(Divider::vertical().color(DividerColor::Border))
2520                    .child(
2521                        Button::new("reject-all-changes", "Reject All")
2522                            .label_size(LabelSize::Small)
2523                            .disabled(pending_edits)
2524                            .when(pending_edits, |this| {
2525                                this.tooltip(Tooltip::text(EDIT_NOT_READY_TOOLTIP_LABEL))
2526                            })
2527                            .key_binding(
2528                                KeyBinding::for_action_in(
2529                                    &RejectAll,
2530                                    &focus_handle.clone(),
2531                                    window,
2532                                    cx,
2533                                )
2534                                .map(|kb| kb.size(rems_from_px(10.))),
2535                            )
2536                            .on_click({
2537                                let action_log = action_log.clone();
2538                                cx.listener(move |_, _, _, cx| {
2539                                    action_log.update(cx, |action_log, cx| {
2540                                        action_log.reject_all_edits(cx).detach();
2541                                    })
2542                                })
2543                            }),
2544                    )
2545                    .child(
2546                        Button::new("keep-all-changes", "Keep All")
2547                            .label_size(LabelSize::Small)
2548                            .disabled(pending_edits)
2549                            .when(pending_edits, |this| {
2550                                this.tooltip(Tooltip::text(EDIT_NOT_READY_TOOLTIP_LABEL))
2551                            })
2552                            .key_binding(
2553                                KeyBinding::for_action_in(&KeepAll, &focus_handle, window, cx)
2554                                    .map(|kb| kb.size(rems_from_px(10.))),
2555                            )
2556                            .on_click({
2557                                let action_log = action_log.clone();
2558                                cx.listener(move |_, _, _, cx| {
2559                                    action_log.update(cx, |action_log, cx| {
2560                                        action_log.keep_all_edits(cx);
2561                                    })
2562                                })
2563                            }),
2564                    ),
2565            )
2566    }
2567
2568    fn render_edited_files(
2569        &self,
2570        action_log: &Entity<ActionLog>,
2571        changed_buffers: &BTreeMap<Entity<Buffer>, Entity<BufferDiff>>,
2572        pending_edits: bool,
2573        cx: &Context<Self>,
2574    ) -> Div {
2575        let editor_bg_color = cx.theme().colors().editor_background;
2576
2577        v_flex().children(changed_buffers.iter().enumerate().flat_map(
2578            |(index, (buffer, _diff))| {
2579                let file = buffer.read(cx).file()?;
2580                let path = file.path();
2581
2582                let file_path = path.parent().and_then(|parent| {
2583                    let parent_str = parent.to_string_lossy();
2584
2585                    if parent_str.is_empty() {
2586                        None
2587                    } else {
2588                        Some(
2589                            Label::new(format!("/{}{}", parent_str, std::path::MAIN_SEPARATOR_STR))
2590                                .color(Color::Muted)
2591                                .size(LabelSize::XSmall)
2592                                .buffer_font(cx),
2593                        )
2594                    }
2595                });
2596
2597                let file_name = path.file_name().map(|name| {
2598                    Label::new(name.to_string_lossy().to_string())
2599                        .size(LabelSize::XSmall)
2600                        .buffer_font(cx)
2601                });
2602
2603                let file_icon = FileIcons::get_icon(path, cx)
2604                    .map(Icon::from_path)
2605                    .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
2606                    .unwrap_or_else(|| {
2607                        Icon::new(IconName::File)
2608                            .color(Color::Muted)
2609                            .size(IconSize::Small)
2610                    });
2611
2612                let overlay_gradient = linear_gradient(
2613                    90.,
2614                    linear_color_stop(editor_bg_color, 1.),
2615                    linear_color_stop(editor_bg_color.opacity(0.2), 0.),
2616                );
2617
2618                let element = h_flex()
2619                    .group("edited-code")
2620                    .id(("file-container", index))
2621                    .relative()
2622                    .py_1()
2623                    .pl_2()
2624                    .pr_1()
2625                    .gap_2()
2626                    .justify_between()
2627                    .bg(editor_bg_color)
2628                    .when(index < changed_buffers.len() - 1, |parent| {
2629                        parent.border_color(cx.theme().colors().border).border_b_1()
2630                    })
2631                    .child(
2632                        h_flex()
2633                            .id(("file-name", index))
2634                            .pr_8()
2635                            .gap_1p5()
2636                            .max_w_full()
2637                            .overflow_x_scroll()
2638                            .child(file_icon)
2639                            .child(h_flex().gap_0p5().children(file_name).children(file_path))
2640                            .on_click({
2641                                let buffer = buffer.clone();
2642                                cx.listener(move |this, _, window, cx| {
2643                                    this.open_edited_buffer(&buffer, window, cx);
2644                                })
2645                            }),
2646                    )
2647                    .child(
2648                        h_flex()
2649                            .gap_1()
2650                            .visible_on_hover("edited-code")
2651                            .child(
2652                                Button::new("review", "Review")
2653                                    .label_size(LabelSize::Small)
2654                                    .on_click({
2655                                        let buffer = buffer.clone();
2656                                        cx.listener(move |this, _, window, cx| {
2657                                            this.open_edited_buffer(&buffer, window, cx);
2658                                        })
2659                                    }),
2660                            )
2661                            .child(Divider::vertical().color(DividerColor::BorderVariant))
2662                            .child(
2663                                Button::new("reject-file", "Reject")
2664                                    .label_size(LabelSize::Small)
2665                                    .disabled(pending_edits)
2666                                    .on_click({
2667                                        let buffer = buffer.clone();
2668                                        let action_log = action_log.clone();
2669                                        move |_, _, cx| {
2670                                            action_log.update(cx, |action_log, cx| {
2671                                                action_log
2672                                                    .reject_edits_in_ranges(
2673                                                        buffer.clone(),
2674                                                        vec![Anchor::MIN..Anchor::MAX],
2675                                                        cx,
2676                                                    )
2677                                                    .detach_and_log_err(cx);
2678                                            })
2679                                        }
2680                                    }),
2681                            )
2682                            .child(
2683                                Button::new("keep-file", "Keep")
2684                                    .label_size(LabelSize::Small)
2685                                    .disabled(pending_edits)
2686                                    .on_click({
2687                                        let buffer = buffer.clone();
2688                                        let action_log = action_log.clone();
2689                                        move |_, _, cx| {
2690                                            action_log.update(cx, |action_log, cx| {
2691                                                action_log.keep_edits_in_range(
2692                                                    buffer.clone(),
2693                                                    Anchor::MIN..Anchor::MAX,
2694                                                    cx,
2695                                                );
2696                                            })
2697                                        }
2698                                    }),
2699                            ),
2700                    )
2701                    .child(
2702                        div()
2703                            .id("gradient-overlay")
2704                            .absolute()
2705                            .h_full()
2706                            .w_12()
2707                            .top_0()
2708                            .bottom_0()
2709                            .right(px(152.))
2710                            .bg(overlay_gradient),
2711                    );
2712
2713                Some(element)
2714            },
2715        ))
2716    }
2717
2718    fn render_message_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
2719        let focus_handle = self.message_editor.focus_handle(cx);
2720        let editor_bg_color = cx.theme().colors().editor_background;
2721        let (expand_icon, expand_tooltip) = if self.editor_expanded {
2722            (IconName::Minimize, "Minimize Message Editor")
2723        } else {
2724            (IconName::Maximize, "Expand Message Editor")
2725        };
2726
2727        v_flex()
2728            .on_action(cx.listener(Self::expand_message_editor))
2729            .on_action(cx.listener(|this, _: &ToggleProfileSelector, window, cx| {
2730                if let Some(profile_selector) = this.profile_selector.as_ref() {
2731                    profile_selector.read(cx).menu_handle().toggle(window, cx);
2732                }
2733            }))
2734            .on_action(cx.listener(|this, _: &ToggleModelSelector, window, cx| {
2735                if let Some(model_selector) = this.model_selector.as_ref() {
2736                    model_selector
2737                        .update(cx, |model_selector, cx| model_selector.toggle(window, cx));
2738                }
2739            }))
2740            .p_2()
2741            .gap_2()
2742            .border_t_1()
2743            .border_color(cx.theme().colors().border)
2744            .bg(editor_bg_color)
2745            .when(self.editor_expanded, |this| {
2746                this.h(vh(0.8, window)).size_full().justify_between()
2747            })
2748            .child(
2749                v_flex()
2750                    .relative()
2751                    .size_full()
2752                    .pt_1()
2753                    .pr_2p5()
2754                    .child(self.message_editor.clone())
2755                    .child(
2756                        h_flex()
2757                            .absolute()
2758                            .top_0()
2759                            .right_0()
2760                            .opacity(0.5)
2761                            .hover(|this| this.opacity(1.0))
2762                            .child(
2763                                IconButton::new("toggle-height", expand_icon)
2764                                    .icon_size(IconSize::Small)
2765                                    .icon_color(Color::Muted)
2766                                    .tooltip({
2767                                        let focus_handle = focus_handle.clone();
2768                                        move |window, cx| {
2769                                            Tooltip::for_action_in(
2770                                                expand_tooltip,
2771                                                &ExpandMessageEditor,
2772                                                &focus_handle,
2773                                                window,
2774                                                cx,
2775                                            )
2776                                        }
2777                                    })
2778                                    .on_click(cx.listener(|_, _, window, cx| {
2779                                        window.dispatch_action(Box::new(ExpandMessageEditor), cx);
2780                                    })),
2781                            ),
2782                    ),
2783            )
2784            .child(
2785                h_flex()
2786                    .flex_none()
2787                    .justify_between()
2788                    .child(
2789                        h_flex()
2790                            .gap_1()
2791                            .child(self.render_follow_toggle(cx))
2792                            .children(self.render_burn_mode_toggle(cx)),
2793                    )
2794                    .child(
2795                        h_flex()
2796                            .gap_1()
2797                            .children(self.render_token_usage(cx))
2798                            .children(self.profile_selector.clone())
2799                            .children(self.model_selector.clone())
2800                            .child(self.render_send_button(cx)),
2801                    ),
2802            )
2803            .into_any()
2804    }
2805
2806    pub(crate) fn as_native_connection(
2807        &self,
2808        cx: &App,
2809    ) -> Option<Rc<agent2::NativeAgentConnection>> {
2810        let acp_thread = self.thread()?.read(cx);
2811        acp_thread.connection().clone().downcast()
2812    }
2813
2814    pub(crate) fn as_native_thread(&self, cx: &App) -> Option<Entity<agent2::Thread>> {
2815        let acp_thread = self.thread()?.read(cx);
2816        self.as_native_connection(cx)?
2817            .thread(acp_thread.session_id(), cx)
2818    }
2819
2820    fn render_token_usage(&self, cx: &mut Context<Self>) -> Option<Div> {
2821        let thread = self.thread()?.read(cx);
2822        let usage = thread.token_usage()?;
2823        let is_generating = thread.status() != ThreadStatus::Idle;
2824
2825        let used = crate::text_thread_editor::humanize_token_count(usage.used_tokens);
2826        let max = crate::text_thread_editor::humanize_token_count(usage.max_tokens);
2827
2828        Some(
2829            h_flex()
2830                .flex_shrink_0()
2831                .gap_0p5()
2832                .mr_1()
2833                .child(
2834                    Label::new(used)
2835                        .size(LabelSize::Small)
2836                        .color(Color::Muted)
2837                        .map(|label| {
2838                            if is_generating {
2839                                label
2840                                    .with_animation(
2841                                        "used-tokens-label",
2842                                        Animation::new(Duration::from_secs(2))
2843                                            .repeat()
2844                                            .with_easing(pulsating_between(0.6, 1.)),
2845                                        |label, delta| label.alpha(delta),
2846                                    )
2847                                    .into_any()
2848                            } else {
2849                                label.into_any_element()
2850                            }
2851                        }),
2852                )
2853                .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2854                .child(Label::new(max).size(LabelSize::Small).color(Color::Muted)),
2855        )
2856    }
2857
2858    fn toggle_burn_mode(
2859        &mut self,
2860        _: &ToggleBurnMode,
2861        _window: &mut Window,
2862        cx: &mut Context<Self>,
2863    ) {
2864        let Some(thread) = self.as_native_thread(cx) else {
2865            return;
2866        };
2867
2868        thread.update(cx, |thread, cx| {
2869            let current_mode = thread.completion_mode();
2870            thread.set_completion_mode(
2871                match current_mode {
2872                    CompletionMode::Burn => CompletionMode::Normal,
2873                    CompletionMode::Normal => CompletionMode::Burn,
2874                },
2875                cx,
2876            );
2877        });
2878    }
2879
2880    fn render_burn_mode_toggle(&self, cx: &mut Context<Self>) -> Option<AnyElement> {
2881        let thread = self.as_native_thread(cx)?.read(cx);
2882
2883        if thread
2884            .model()
2885            .is_none_or(|model| !model.supports_burn_mode())
2886        {
2887            return None;
2888        }
2889
2890        let active_completion_mode = thread.completion_mode();
2891        let burn_mode_enabled = active_completion_mode == CompletionMode::Burn;
2892        let icon = if burn_mode_enabled {
2893            IconName::ZedBurnModeOn
2894        } else {
2895            IconName::ZedBurnMode
2896        };
2897
2898        Some(
2899            IconButton::new("burn-mode", icon)
2900                .icon_size(IconSize::Small)
2901                .icon_color(Color::Muted)
2902                .toggle_state(burn_mode_enabled)
2903                .selected_icon_color(Color::Error)
2904                .on_click(cx.listener(|this, _event, window, cx| {
2905                    this.toggle_burn_mode(&ToggleBurnMode, window, cx);
2906                }))
2907                .tooltip(move |_window, cx| {
2908                    cx.new(|_| BurnModeTooltip::new().selected(burn_mode_enabled))
2909                        .into()
2910                })
2911                .into_any_element(),
2912        )
2913    }
2914
2915    fn render_send_button(&self, cx: &mut Context<Self>) -> AnyElement {
2916        let is_editor_empty = self.message_editor.read(cx).is_empty(cx);
2917        let is_generating = self
2918            .thread()
2919            .is_some_and(|thread| thread.read(cx).status() != ThreadStatus::Idle);
2920
2921        if is_generating && is_editor_empty {
2922            IconButton::new("stop-generation", IconName::Stop)
2923                .icon_color(Color::Error)
2924                .style(ButtonStyle::Tinted(ui::TintColor::Error))
2925                .tooltip(move |window, cx| {
2926                    Tooltip::for_action("Stop Generation", &editor::actions::Cancel, window, cx)
2927                })
2928                .on_click(cx.listener(|this, _event, _, cx| this.cancel_generation(cx)))
2929                .into_any_element()
2930        } else {
2931            let send_btn_tooltip = if is_editor_empty && !is_generating {
2932                "Type to Send"
2933            } else if is_generating {
2934                "Stop and Send Message"
2935            } else {
2936                "Send"
2937            };
2938
2939            IconButton::new("send-message", IconName::Send)
2940                .style(ButtonStyle::Filled)
2941                .map(|this| {
2942                    if is_editor_empty && !is_generating {
2943                        this.disabled(true).icon_color(Color::Muted)
2944                    } else {
2945                        this.icon_color(Color::Accent)
2946                    }
2947                })
2948                .tooltip(move |window, cx| Tooltip::for_action(send_btn_tooltip, &Chat, window, cx))
2949                .on_click(cx.listener(|this, _, window, cx| {
2950                    this.send(window, cx);
2951                }))
2952                .into_any_element()
2953        }
2954    }
2955
2956    fn render_follow_toggle(&self, cx: &mut Context<Self>) -> impl IntoElement {
2957        let following = self
2958            .workspace
2959            .read_with(cx, |workspace, _| {
2960                workspace.is_being_followed(CollaboratorId::Agent)
2961            })
2962            .unwrap_or(false);
2963
2964        IconButton::new("follow-agent", IconName::Crosshair)
2965            .icon_size(IconSize::Small)
2966            .icon_color(Color::Muted)
2967            .toggle_state(following)
2968            .selected_icon_color(Some(Color::Custom(cx.theme().players().agent().cursor)))
2969            .tooltip(move |window, cx| {
2970                if following {
2971                    Tooltip::for_action("Stop Following Agent", &Follow, window, cx)
2972                } else {
2973                    Tooltip::with_meta(
2974                        "Follow Agent",
2975                        Some(&Follow),
2976                        "Track the agent's location as it reads and edits files.",
2977                        window,
2978                        cx,
2979                    )
2980                }
2981            })
2982            .on_click(cx.listener(move |this, _, window, cx| {
2983                this.workspace
2984                    .update(cx, |workspace, cx| {
2985                        if following {
2986                            workspace.unfollow(CollaboratorId::Agent, window, cx);
2987                        } else {
2988                            workspace.follow(CollaboratorId::Agent, window, cx);
2989                        }
2990                    })
2991                    .ok();
2992            }))
2993    }
2994
2995    fn render_markdown(&self, markdown: Entity<Markdown>, style: MarkdownStyle) -> MarkdownElement {
2996        let workspace = self.workspace.clone();
2997        MarkdownElement::new(markdown, style).on_url_click(move |text, window, cx| {
2998            Self::open_link(text, &workspace, window, cx);
2999        })
3000    }
3001
3002    fn open_link(
3003        url: SharedString,
3004        workspace: &WeakEntity<Workspace>,
3005        window: &mut Window,
3006        cx: &mut App,
3007    ) {
3008        let Some(workspace) = workspace.upgrade() else {
3009            cx.open_url(&url);
3010            return;
3011        };
3012
3013        if let Some(mention) = MentionUri::parse(&url).log_err() {
3014            workspace.update(cx, |workspace, cx| match mention {
3015                MentionUri::File { abs_path } => {
3016                    let project = workspace.project();
3017                    let Some(path) =
3018                        project.update(cx, |project, cx| project.find_project_path(abs_path, cx))
3019                    else {
3020                        return;
3021                    };
3022
3023                    workspace
3024                        .open_path(path, None, true, window, cx)
3025                        .detach_and_log_err(cx);
3026                }
3027                MentionUri::Directory { abs_path } => {
3028                    let project = workspace.project();
3029                    let Some(entry) = project.update(cx, |project, cx| {
3030                        let path = project.find_project_path(abs_path, cx)?;
3031                        project.entry_for_path(&path, cx)
3032                    }) else {
3033                        return;
3034                    };
3035
3036                    project.update(cx, |_, cx| {
3037                        cx.emit(project::Event::RevealInProjectPanel(entry.id));
3038                    });
3039                }
3040                MentionUri::Symbol {
3041                    path, line_range, ..
3042                }
3043                | MentionUri::Selection { path, line_range } => {
3044                    let project = workspace.project();
3045                    let Some((path, _)) = project.update(cx, |project, cx| {
3046                        let path = project.find_project_path(path, cx)?;
3047                        let entry = project.entry_for_path(&path, cx)?;
3048                        Some((path, entry))
3049                    }) else {
3050                        return;
3051                    };
3052
3053                    let item = workspace.open_path(path, None, true, window, cx);
3054                    window
3055                        .spawn(cx, async move |cx| {
3056                            let Some(editor) = item.await?.downcast::<Editor>() else {
3057                                return Ok(());
3058                            };
3059                            let range =
3060                                Point::new(line_range.start, 0)..Point::new(line_range.start, 0);
3061                            editor
3062                                .update_in(cx, |editor, window, cx| {
3063                                    editor.change_selections(
3064                                        SelectionEffects::scroll(Autoscroll::center()),
3065                                        window,
3066                                        cx,
3067                                        |s| s.select_ranges(vec![range]),
3068                                    );
3069                                })
3070                                .ok();
3071                            anyhow::Ok(())
3072                        })
3073                        .detach_and_log_err(cx);
3074                }
3075                MentionUri::Thread { id, .. } => {
3076                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3077                        panel.update(cx, |panel, cx| {
3078                            panel
3079                                .open_thread_by_id(&id, window, cx)
3080                                .detach_and_log_err(cx)
3081                        });
3082                    }
3083                }
3084                MentionUri::TextThread { path, .. } => {
3085                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3086                        panel.update(cx, |panel, cx| {
3087                            panel
3088                                .open_saved_prompt_editor(path.as_path().into(), window, cx)
3089                                .detach_and_log_err(cx);
3090                        });
3091                    }
3092                }
3093                MentionUri::Rule { id, .. } => {
3094                    let PromptId::User { uuid } = id else {
3095                        return;
3096                    };
3097                    window.dispatch_action(
3098                        Box::new(OpenRulesLibrary {
3099                            prompt_to_select: Some(uuid.0),
3100                        }),
3101                        cx,
3102                    )
3103                }
3104                MentionUri::Fetch { url } => {
3105                    cx.open_url(url.as_str());
3106                }
3107            })
3108        } else {
3109            cx.open_url(&url);
3110        }
3111    }
3112
3113    fn open_tool_call_location(
3114        &self,
3115        entry_ix: usize,
3116        location_ix: usize,
3117        window: &mut Window,
3118        cx: &mut Context<Self>,
3119    ) -> Option<()> {
3120        let (tool_call_location, agent_location) = self
3121            .thread()?
3122            .read(cx)
3123            .entries()
3124            .get(entry_ix)?
3125            .location(location_ix)?;
3126
3127        let project_path = self
3128            .project
3129            .read(cx)
3130            .find_project_path(&tool_call_location.path, cx)?;
3131
3132        let open_task = self
3133            .workspace
3134            .update(cx, |workspace, cx| {
3135                workspace.open_path(project_path, None, true, window, cx)
3136            })
3137            .log_err()?;
3138        window
3139            .spawn(cx, async move |cx| {
3140                let item = open_task.await?;
3141
3142                let Some(active_editor) = item.downcast::<Editor>() else {
3143                    return anyhow::Ok(());
3144                };
3145
3146                active_editor.update_in(cx, |editor, window, cx| {
3147                    let multibuffer = editor.buffer().read(cx);
3148                    let buffer = multibuffer.as_singleton();
3149                    if agent_location.buffer.upgrade() == buffer {
3150                        let excerpt_id = multibuffer.excerpt_ids().first().cloned();
3151                        let anchor = editor::Anchor::in_buffer(
3152                            excerpt_id.unwrap(),
3153                            buffer.unwrap().read(cx).remote_id(),
3154                            agent_location.position,
3155                        );
3156                        editor.change_selections(Default::default(), window, cx, |selections| {
3157                            selections.select_anchor_ranges([anchor..anchor]);
3158                        })
3159                    } else {
3160                        let row = tool_call_location.line.unwrap_or_default();
3161                        editor.change_selections(Default::default(), window, cx, |selections| {
3162                            selections.select_ranges([Point::new(row, 0)..Point::new(row, 0)]);
3163                        })
3164                    }
3165                })?;
3166
3167                anyhow::Ok(())
3168            })
3169            .detach_and_log_err(cx);
3170
3171        None
3172    }
3173
3174    pub fn open_thread_as_markdown(
3175        &self,
3176        workspace: Entity<Workspace>,
3177        window: &mut Window,
3178        cx: &mut App,
3179    ) -> Task<anyhow::Result<()>> {
3180        let markdown_language_task = workspace
3181            .read(cx)
3182            .app_state()
3183            .languages
3184            .language_for_name("Markdown");
3185
3186        let (thread_summary, markdown) = if let Some(thread) = self.thread() {
3187            let thread = thread.read(cx);
3188            (thread.title().to_string(), thread.to_markdown(cx))
3189        } else {
3190            return Task::ready(Ok(()));
3191        };
3192
3193        window.spawn(cx, async move |cx| {
3194            let markdown_language = markdown_language_task.await?;
3195
3196            workspace.update_in(cx, |workspace, window, cx| {
3197                let project = workspace.project().clone();
3198
3199                if !project.read(cx).is_local() {
3200                    bail!("failed to open active thread as markdown in remote project");
3201                }
3202
3203                let buffer = project.update(cx, |project, cx| {
3204                    project.create_local_buffer(&markdown, Some(markdown_language), cx)
3205                });
3206                let buffer = cx.new(|cx| {
3207                    MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone())
3208                });
3209
3210                workspace.add_item_to_active_pane(
3211                    Box::new(cx.new(|cx| {
3212                        let mut editor =
3213                            Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3214                        editor.set_breadcrumb_header(thread_summary);
3215                        editor
3216                    })),
3217                    None,
3218                    true,
3219                    window,
3220                    cx,
3221                );
3222
3223                anyhow::Ok(())
3224            })??;
3225            anyhow::Ok(())
3226        })
3227    }
3228
3229    fn scroll_to_top(&mut self, cx: &mut Context<Self>) {
3230        self.list_state.scroll_to(ListOffset::default());
3231        cx.notify();
3232    }
3233
3234    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3235        if let Some(thread) = self.thread() {
3236            let entry_count = thread.read(cx).entries().len();
3237            self.list_state.reset(entry_count);
3238            cx.notify();
3239        }
3240    }
3241
3242    fn notify_with_sound(
3243        &mut self,
3244        caption: impl Into<SharedString>,
3245        icon: IconName,
3246        window: &mut Window,
3247        cx: &mut Context<Self>,
3248    ) {
3249        self.play_notification_sound(window, cx);
3250        self.show_notification(caption, icon, window, cx);
3251    }
3252
3253    fn play_notification_sound(&self, window: &Window, cx: &mut App) {
3254        let settings = AgentSettings::get_global(cx);
3255        if settings.play_sound_when_agent_done && !window.is_window_active() {
3256            Audio::play_sound(Sound::AgentDone, cx);
3257        }
3258    }
3259
3260    fn show_notification(
3261        &mut self,
3262        caption: impl Into<SharedString>,
3263        icon: IconName,
3264        window: &mut Window,
3265        cx: &mut Context<Self>,
3266    ) {
3267        if window.is_window_active() || !self.notifications.is_empty() {
3268            return;
3269        }
3270
3271        let title = self.title(cx);
3272
3273        match AgentSettings::get_global(cx).notify_when_agent_waiting {
3274            NotifyWhenAgentWaiting::PrimaryScreen => {
3275                if let Some(primary) = cx.primary_display() {
3276                    self.pop_up(icon, caption.into(), title, window, primary, cx);
3277                }
3278            }
3279            NotifyWhenAgentWaiting::AllScreens => {
3280                let caption = caption.into();
3281                for screen in cx.displays() {
3282                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
3283                }
3284            }
3285            NotifyWhenAgentWaiting::Never => {
3286                // Don't show anything
3287            }
3288        }
3289    }
3290
3291    fn pop_up(
3292        &mut self,
3293        icon: IconName,
3294        caption: SharedString,
3295        title: SharedString,
3296        window: &mut Window,
3297        screen: Rc<dyn PlatformDisplay>,
3298        cx: &mut Context<Self>,
3299    ) {
3300        let options = AgentNotification::window_options(screen, cx);
3301
3302        let project_name = self.workspace.upgrade().and_then(|workspace| {
3303            workspace
3304                .read(cx)
3305                .project()
3306                .read(cx)
3307                .visible_worktrees(cx)
3308                .next()
3309                .map(|worktree| worktree.read(cx).root_name().to_string())
3310        });
3311
3312        if let Some(screen_window) = cx
3313            .open_window(options, |_, cx| {
3314                cx.new(|_| {
3315                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
3316                })
3317            })
3318            .log_err()
3319            && let Some(pop_up) = screen_window.entity(cx).log_err()
3320        {
3321            self.notification_subscriptions
3322                .entry(screen_window)
3323                .or_insert_with(Vec::new)
3324                .push(cx.subscribe_in(&pop_up, window, {
3325                    |this, _, event, window, cx| match event {
3326                        AgentNotificationEvent::Accepted => {
3327                            let handle = window.window_handle();
3328                            cx.activate(true);
3329
3330                            let workspace_handle = this.workspace.clone();
3331
3332                            // If there are multiple Zed windows, activate the correct one.
3333                            cx.defer(move |cx| {
3334                                handle
3335                                    .update(cx, |_view, window, _cx| {
3336                                        window.activate_window();
3337
3338                                        if let Some(workspace) = workspace_handle.upgrade() {
3339                                            workspace.update(_cx, |workspace, cx| {
3340                                                workspace.focus_panel::<AgentPanel>(window, cx);
3341                                            });
3342                                        }
3343                                    })
3344                                    .log_err();
3345                            });
3346
3347                            this.dismiss_notifications(cx);
3348                        }
3349                        AgentNotificationEvent::Dismissed => {
3350                            this.dismiss_notifications(cx);
3351                        }
3352                    }
3353                }));
3354
3355            self.notifications.push(screen_window);
3356
3357            // If the user manually refocuses the original window, dismiss the popup.
3358            self.notification_subscriptions
3359                .entry(screen_window)
3360                .or_insert_with(Vec::new)
3361                .push({
3362                    let pop_up_weak = pop_up.downgrade();
3363
3364                    cx.observe_window_activation(window, move |_, window, cx| {
3365                        if window.is_window_active()
3366                            && let Some(pop_up) = pop_up_weak.upgrade()
3367                        {
3368                            pop_up.update(cx, |_, cx| {
3369                                cx.emit(AgentNotificationEvent::Dismissed);
3370                            });
3371                        }
3372                    })
3373                });
3374        }
3375    }
3376
3377    fn dismiss_notifications(&mut self, cx: &mut Context<Self>) {
3378        for window in self.notifications.drain(..) {
3379            window
3380                .update(cx, |_, window, _| {
3381                    window.remove_window();
3382                })
3383                .ok();
3384
3385            self.notification_subscriptions.remove(&window);
3386        }
3387    }
3388
3389    fn render_thread_controls(&self, cx: &Context<Self>) -> impl IntoElement {
3390        let open_as_markdown = IconButton::new("open-as-markdown", IconName::FileMarkdown)
3391            .shape(ui::IconButtonShape::Square)
3392            .icon_size(IconSize::Small)
3393            .icon_color(Color::Ignored)
3394            .tooltip(Tooltip::text("Open Thread as Markdown"))
3395            .on_click(cx.listener(move |this, _, window, cx| {
3396                if let Some(workspace) = this.workspace.upgrade() {
3397                    this.open_thread_as_markdown(workspace, window, cx)
3398                        .detach_and_log_err(cx);
3399                }
3400            }));
3401
3402        let scroll_to_top = IconButton::new("scroll_to_top", IconName::ArrowUp)
3403            .shape(ui::IconButtonShape::Square)
3404            .icon_size(IconSize::Small)
3405            .icon_color(Color::Ignored)
3406            .tooltip(Tooltip::text("Scroll To Top"))
3407            .on_click(cx.listener(move |this, _, _, cx| {
3408                this.scroll_to_top(cx);
3409            }));
3410
3411        h_flex()
3412            .w_full()
3413            .mr_1()
3414            .pb_2()
3415            .px(RESPONSE_PADDING_X)
3416            .opacity(0.4)
3417            .hover(|style| style.opacity(1.))
3418            .flex_wrap()
3419            .justify_end()
3420            .child(open_as_markdown)
3421            .child(scroll_to_top)
3422    }
3423
3424    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Stateful<Div> {
3425        div()
3426            .id("acp-thread-scrollbar")
3427            .occlude()
3428            .on_mouse_move(cx.listener(|_, _, _, cx| {
3429                cx.notify();
3430                cx.stop_propagation()
3431            }))
3432            .on_hover(|_, _, cx| {
3433                cx.stop_propagation();
3434            })
3435            .on_any_mouse_down(|_, _, cx| {
3436                cx.stop_propagation();
3437            })
3438            .on_mouse_up(
3439                MouseButton::Left,
3440                cx.listener(|_, _, _, cx| {
3441                    cx.stop_propagation();
3442                }),
3443            )
3444            .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3445                cx.notify();
3446            }))
3447            .h_full()
3448            .absolute()
3449            .right_1()
3450            .top_1()
3451            .bottom_0()
3452            .w(px(12.))
3453            .cursor_default()
3454            .children(Scrollbar::vertical(self.scrollbar_state.clone()).map(|s| s.auto_hide(cx)))
3455    }
3456
3457    fn settings_changed(&mut self, _window: &mut Window, cx: &mut Context<Self>) {
3458        self.entry_view_state.update(cx, |entry_view_state, cx| {
3459            entry_view_state.settings_changed(cx);
3460        });
3461    }
3462
3463    pub(crate) fn insert_dragged_files(
3464        &self,
3465        paths: Vec<project::ProjectPath>,
3466        added_worktrees: Vec<Entity<project::Worktree>>,
3467        window: &mut Window,
3468        cx: &mut Context<Self>,
3469    ) {
3470        self.message_editor.update(cx, |message_editor, cx| {
3471            message_editor.insert_dragged_files(paths, added_worktrees, window, cx);
3472        })
3473    }
3474
3475    fn render_thread_retry_status_callout(
3476        &self,
3477        _window: &mut Window,
3478        _cx: &mut Context<Self>,
3479    ) -> Option<Callout> {
3480        let state = self.thread_retry_status.as_ref()?;
3481
3482        let next_attempt_in = state
3483            .duration
3484            .saturating_sub(Instant::now().saturating_duration_since(state.started_at));
3485        if next_attempt_in.is_zero() {
3486            return None;
3487        }
3488
3489        let next_attempt_in_secs = next_attempt_in.as_secs() + 1;
3490
3491        let retry_message = if state.max_attempts == 1 {
3492            if next_attempt_in_secs == 1 {
3493                "Retrying. Next attempt in 1 second.".to_string()
3494            } else {
3495                format!("Retrying. Next attempt in {next_attempt_in_secs} seconds.")
3496            }
3497        } else if next_attempt_in_secs == 1 {
3498            format!(
3499                "Retrying. Next attempt in 1 second (Attempt {} of {}).",
3500                state.attempt, state.max_attempts,
3501            )
3502        } else {
3503            format!(
3504                "Retrying. Next attempt in {next_attempt_in_secs} seconds (Attempt {} of {}).",
3505                state.attempt, state.max_attempts,
3506            )
3507        };
3508
3509        Some(
3510            Callout::new()
3511                .severity(Severity::Warning)
3512                .title(state.last_error.clone())
3513                .description(retry_message),
3514        )
3515    }
3516
3517    fn render_thread_error(&self, window: &mut Window, cx: &mut Context<Self>) -> Option<Div> {
3518        let content = match self.thread_error.as_ref()? {
3519            ThreadError::Other(error) => self.render_any_thread_error(error.clone(), cx),
3520            ThreadError::PaymentRequired => self.render_payment_required_error(cx),
3521            ThreadError::ModelRequestLimitReached(plan) => {
3522                self.render_model_request_limit_reached_error(*plan, cx)
3523            }
3524            ThreadError::ToolUseLimitReached => {
3525                self.render_tool_use_limit_reached_error(window, cx)?
3526            }
3527        };
3528
3529        Some(div().child(content))
3530    }
3531
3532    fn render_any_thread_error(&self, error: SharedString, cx: &mut Context<'_, Self>) -> Callout {
3533        Callout::new()
3534            .severity(Severity::Error)
3535            .title("Error")
3536            .description(error.clone())
3537            .actions_slot(self.create_copy_button(error.to_string()))
3538            .dismiss_action(self.dismiss_error_button(cx))
3539    }
3540
3541    fn render_payment_required_error(&self, cx: &mut Context<Self>) -> Callout {
3542        const ERROR_MESSAGE: &str =
3543            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
3544
3545        Callout::new()
3546            .severity(Severity::Error)
3547            .title("Free Usage Exceeded")
3548            .description(ERROR_MESSAGE)
3549            .actions_slot(
3550                h_flex()
3551                    .gap_0p5()
3552                    .child(self.upgrade_button(cx))
3553                    .child(self.create_copy_button(ERROR_MESSAGE)),
3554            )
3555            .dismiss_action(self.dismiss_error_button(cx))
3556    }
3557
3558    fn render_model_request_limit_reached_error(
3559        &self,
3560        plan: cloud_llm_client::Plan,
3561        cx: &mut Context<Self>,
3562    ) -> Callout {
3563        let error_message = match plan {
3564            cloud_llm_client::Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
3565            cloud_llm_client::Plan::ZedProTrial | cloud_llm_client::Plan::ZedFree => {
3566                "Upgrade to Zed Pro for more prompts."
3567            }
3568        };
3569
3570        Callout::new()
3571            .severity(Severity::Error)
3572            .title("Model Prompt Limit Reached")
3573            .description(error_message)
3574            .actions_slot(
3575                h_flex()
3576                    .gap_0p5()
3577                    .child(self.upgrade_button(cx))
3578                    .child(self.create_copy_button(error_message)),
3579            )
3580            .dismiss_action(self.dismiss_error_button(cx))
3581    }
3582
3583    fn render_tool_use_limit_reached_error(
3584        &self,
3585        window: &mut Window,
3586        cx: &mut Context<Self>,
3587    ) -> Option<Callout> {
3588        let thread = self.as_native_thread(cx)?;
3589        let supports_burn_mode = thread
3590            .read(cx)
3591            .model()
3592            .is_some_and(|model| model.supports_burn_mode());
3593
3594        let focus_handle = self.focus_handle(cx);
3595
3596        Some(
3597            Callout::new()
3598                .icon(IconName::Info)
3599                .title("Consecutive tool use limit reached.")
3600                .actions_slot(
3601                    h_flex()
3602                        .gap_0p5()
3603                        .when(supports_burn_mode, |this| {
3604                            this.child(
3605                                Button::new("continue-burn-mode", "Continue with Burn Mode")
3606                                    .style(ButtonStyle::Filled)
3607                                    .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3608                                    .layer(ElevationIndex::ModalSurface)
3609                                    .label_size(LabelSize::Small)
3610                                    .key_binding(
3611                                        KeyBinding::for_action_in(
3612                                            &ContinueWithBurnMode,
3613                                            &focus_handle,
3614                                            window,
3615                                            cx,
3616                                        )
3617                                        .map(|kb| kb.size(rems_from_px(10.))),
3618                                    )
3619                                    .tooltip(Tooltip::text(
3620                                        "Enable Burn Mode for unlimited tool use.",
3621                                    ))
3622                                    .on_click({
3623                                        cx.listener(move |this, _, _window, cx| {
3624                                            thread.update(cx, |thread, cx| {
3625                                                thread
3626                                                    .set_completion_mode(CompletionMode::Burn, cx);
3627                                            });
3628                                            this.resume_chat(cx);
3629                                        })
3630                                    }),
3631                            )
3632                        })
3633                        .child(
3634                            Button::new("continue-conversation", "Continue")
3635                                .layer(ElevationIndex::ModalSurface)
3636                                .label_size(LabelSize::Small)
3637                                .key_binding(
3638                                    KeyBinding::for_action_in(
3639                                        &ContinueThread,
3640                                        &focus_handle,
3641                                        window,
3642                                        cx,
3643                                    )
3644                                    .map(|kb| kb.size(rems_from_px(10.))),
3645                                )
3646                                .on_click(cx.listener(|this, _, _window, cx| {
3647                                    this.resume_chat(cx);
3648                                })),
3649                        ),
3650                ),
3651        )
3652    }
3653
3654    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
3655        let message = message.into();
3656
3657        IconButton::new("copy", IconName::Copy)
3658            .icon_size(IconSize::Small)
3659            .icon_color(Color::Muted)
3660            .tooltip(Tooltip::text("Copy Error Message"))
3661            .on_click(move |_, _, cx| {
3662                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
3663            })
3664    }
3665
3666    fn dismiss_error_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
3667        IconButton::new("dismiss", IconName::Close)
3668            .icon_size(IconSize::Small)
3669            .icon_color(Color::Muted)
3670            .tooltip(Tooltip::text("Dismiss Error"))
3671            .on_click(cx.listener({
3672                move |this, _, _, cx| {
3673                    this.clear_thread_error(cx);
3674                    cx.notify();
3675                }
3676            }))
3677    }
3678
3679    fn upgrade_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
3680        Button::new("upgrade", "Upgrade")
3681            .label_size(LabelSize::Small)
3682            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3683            .on_click(cx.listener({
3684                move |this, _, _, cx| {
3685                    this.clear_thread_error(cx);
3686                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
3687                }
3688            }))
3689    }
3690}
3691
3692impl Focusable for AcpThreadView {
3693    fn focus_handle(&self, cx: &App) -> FocusHandle {
3694        self.message_editor.focus_handle(cx)
3695    }
3696}
3697
3698impl Render for AcpThreadView {
3699    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3700        let has_messages = self.list_state.item_count() > 0;
3701
3702        v_flex()
3703            .size_full()
3704            .key_context("AcpThread")
3705            .on_action(cx.listener(Self::open_agent_diff))
3706            .on_action(cx.listener(Self::toggle_burn_mode))
3707            .bg(cx.theme().colors().panel_background)
3708            .child(match &self.thread_state {
3709                ThreadState::Unauthenticated {
3710                    connection,
3711                    description,
3712                    configuration_view,
3713                    ..
3714                } => self.render_auth_required_state(
3715                    connection,
3716                    description.as_ref(),
3717                    configuration_view.as_ref(),
3718                    window,
3719                    cx,
3720                ),
3721                ThreadState::Loading { .. } => v_flex().flex_1().child(self.render_empty_state(cx)),
3722                ThreadState::LoadError(e) => v_flex()
3723                    .p_2()
3724                    .flex_1()
3725                    .items_center()
3726                    .justify_center()
3727                    .child(self.render_load_error(e, cx)),
3728                ThreadState::ServerExited { status } => v_flex()
3729                    .p_2()
3730                    .flex_1()
3731                    .items_center()
3732                    .justify_center()
3733                    .child(self.render_server_exited(*status, cx)),
3734                ThreadState::Ready { thread, .. } => {
3735                    let thread_clone = thread.clone();
3736
3737                    v_flex().flex_1().map(|this| {
3738                        if has_messages {
3739                            this.child(
3740                                list(
3741                                    self.list_state.clone(),
3742                                    cx.processor(|this, index: usize, window, cx| {
3743                                        let Some((entry, len)) = this.thread().and_then(|thread| {
3744                                            let entries = &thread.read(cx).entries();
3745                                            Some((entries.get(index)?, entries.len()))
3746                                        }) else {
3747                                            return Empty.into_any();
3748                                        };
3749                                        this.render_entry(index, len, entry, window, cx)
3750                                    }),
3751                                )
3752                                .with_sizing_behavior(gpui::ListSizingBehavior::Auto)
3753                                .flex_grow()
3754                                .into_any(),
3755                            )
3756                            .child(self.render_vertical_scrollbar(cx))
3757                            .children(
3758                                match thread_clone.read(cx).status() {
3759                                    ThreadStatus::Idle
3760                                    | ThreadStatus::WaitingForToolConfirmation => None,
3761                                    ThreadStatus::Generating => div()
3762                                        .px_5()
3763                                        .py_2()
3764                                        .child(LoadingLabel::new("").size(LabelSize::Small))
3765                                        .into(),
3766                                },
3767                            )
3768                        } else {
3769                            this.child(self.render_empty_state(cx))
3770                        }
3771                    })
3772                }
3773            })
3774            // The activity bar is intentionally rendered outside of the ThreadState::Ready match
3775            // above so that the scrollbar doesn't render behind it. The current setup allows
3776            // the scrollbar to stop exactly at the activity bar start.
3777            .when(has_messages, |this| match &self.thread_state {
3778                ThreadState::Ready { thread, .. } => {
3779                    this.children(self.render_activity_bar(thread, window, cx))
3780                }
3781                _ => this,
3782            })
3783            .children(self.render_thread_retry_status_callout(window, cx))
3784            .children(self.render_thread_error(window, cx))
3785            .child(self.render_message_editor(window, cx))
3786    }
3787}
3788
3789fn default_markdown_style(buffer_font: bool, window: &Window, cx: &App) -> MarkdownStyle {
3790    let theme_settings = ThemeSettings::get_global(cx);
3791    let colors = cx.theme().colors();
3792
3793    let buffer_font_size = TextSize::Small.rems(cx);
3794
3795    let mut text_style = window.text_style();
3796    let line_height = buffer_font_size * 1.75;
3797
3798    let font_family = if buffer_font {
3799        theme_settings.buffer_font.family.clone()
3800    } else {
3801        theme_settings.ui_font.family.clone()
3802    };
3803
3804    let font_size = if buffer_font {
3805        TextSize::Small.rems(cx)
3806    } else {
3807        TextSize::Default.rems(cx)
3808    };
3809
3810    text_style.refine(&TextStyleRefinement {
3811        font_family: Some(font_family),
3812        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
3813        font_features: Some(theme_settings.ui_font.features.clone()),
3814        font_size: Some(font_size.into()),
3815        line_height: Some(line_height.into()),
3816        color: Some(cx.theme().colors().text),
3817        ..Default::default()
3818    });
3819
3820    MarkdownStyle {
3821        base_text_style: text_style.clone(),
3822        syntax: cx.theme().syntax().clone(),
3823        selection_background_color: cx.theme().colors().element_selection_background,
3824        code_block_overflow_x_scroll: true,
3825        table_overflow_x_scroll: true,
3826        heading_level_styles: Some(HeadingLevelStyles {
3827            h1: Some(TextStyleRefinement {
3828                font_size: Some(rems(1.15).into()),
3829                ..Default::default()
3830            }),
3831            h2: Some(TextStyleRefinement {
3832                font_size: Some(rems(1.1).into()),
3833                ..Default::default()
3834            }),
3835            h3: Some(TextStyleRefinement {
3836                font_size: Some(rems(1.05).into()),
3837                ..Default::default()
3838            }),
3839            h4: Some(TextStyleRefinement {
3840                font_size: Some(rems(1.).into()),
3841                ..Default::default()
3842            }),
3843            h5: Some(TextStyleRefinement {
3844                font_size: Some(rems(0.95).into()),
3845                ..Default::default()
3846            }),
3847            h6: Some(TextStyleRefinement {
3848                font_size: Some(rems(0.875).into()),
3849                ..Default::default()
3850            }),
3851        }),
3852        code_block: StyleRefinement {
3853            padding: EdgesRefinement {
3854                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
3855                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
3856                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
3857                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
3858            },
3859            margin: EdgesRefinement {
3860                top: Some(Length::Definite(Pixels(8.).into())),
3861                left: Some(Length::Definite(Pixels(0.).into())),
3862                right: Some(Length::Definite(Pixels(0.).into())),
3863                bottom: Some(Length::Definite(Pixels(12.).into())),
3864            },
3865            border_style: Some(BorderStyle::Solid),
3866            border_widths: EdgesRefinement {
3867                top: Some(AbsoluteLength::Pixels(Pixels(1.))),
3868                left: Some(AbsoluteLength::Pixels(Pixels(1.))),
3869                right: Some(AbsoluteLength::Pixels(Pixels(1.))),
3870                bottom: Some(AbsoluteLength::Pixels(Pixels(1.))),
3871            },
3872            border_color: Some(colors.border_variant),
3873            background: Some(colors.editor_background.into()),
3874            text: Some(TextStyleRefinement {
3875                font_family: Some(theme_settings.buffer_font.family.clone()),
3876                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
3877                font_features: Some(theme_settings.buffer_font.features.clone()),
3878                font_size: Some(buffer_font_size.into()),
3879                ..Default::default()
3880            }),
3881            ..Default::default()
3882        },
3883        inline_code: TextStyleRefinement {
3884            font_family: Some(theme_settings.buffer_font.family.clone()),
3885            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
3886            font_features: Some(theme_settings.buffer_font.features.clone()),
3887            font_size: Some(buffer_font_size.into()),
3888            background_color: Some(colors.editor_foreground.opacity(0.08)),
3889            ..Default::default()
3890        },
3891        link: TextStyleRefinement {
3892            background_color: Some(colors.editor_foreground.opacity(0.025)),
3893            underline: Some(UnderlineStyle {
3894                color: Some(colors.text_accent.opacity(0.5)),
3895                thickness: px(1.),
3896                ..Default::default()
3897            }),
3898            ..Default::default()
3899        },
3900        ..Default::default()
3901    }
3902}
3903
3904fn plan_label_markdown_style(
3905    status: &acp::PlanEntryStatus,
3906    window: &Window,
3907    cx: &App,
3908) -> MarkdownStyle {
3909    let default_md_style = default_markdown_style(false, window, cx);
3910
3911    MarkdownStyle {
3912        base_text_style: TextStyle {
3913            color: cx.theme().colors().text_muted,
3914            strikethrough: if matches!(status, acp::PlanEntryStatus::Completed) {
3915                Some(gpui::StrikethroughStyle {
3916                    thickness: px(1.),
3917                    color: Some(cx.theme().colors().text_muted.opacity(0.8)),
3918                })
3919            } else {
3920                None
3921            },
3922            ..default_md_style.base_text_style
3923        },
3924        ..default_md_style
3925    }
3926}
3927
3928fn terminal_command_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
3929    let default_md_style = default_markdown_style(true, window, cx);
3930
3931    MarkdownStyle {
3932        base_text_style: TextStyle {
3933            ..default_md_style.base_text_style
3934        },
3935        selection_background_color: cx.theme().colors().element_selection_background,
3936        ..Default::default()
3937    }
3938}
3939
3940#[cfg(test)]
3941pub(crate) mod tests {
3942    use acp_thread::StubAgentConnection;
3943    use agent::{TextThreadStore, ThreadStore};
3944    use agent_client_protocol::SessionId;
3945    use editor::EditorSettings;
3946    use fs::FakeFs;
3947    use gpui::{EventEmitter, SemanticVersion, TestAppContext, VisualTestContext};
3948    use project::Project;
3949    use serde_json::json;
3950    use settings::SettingsStore;
3951    use std::any::Any;
3952    use std::path::Path;
3953    use workspace::Item;
3954
3955    use super::*;
3956
3957    #[gpui::test]
3958    async fn test_drop(cx: &mut TestAppContext) {
3959        init_test(cx);
3960
3961        let (thread_view, _cx) = setup_thread_view(StubAgentServer::default_response(), cx).await;
3962        let weak_view = thread_view.downgrade();
3963        drop(thread_view);
3964        assert!(!weak_view.is_upgradable());
3965    }
3966
3967    #[gpui::test]
3968    async fn test_notification_for_stop_event(cx: &mut TestAppContext) {
3969        init_test(cx);
3970
3971        let (thread_view, cx) = setup_thread_view(StubAgentServer::default_response(), cx).await;
3972
3973        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
3974        message_editor.update_in(cx, |editor, window, cx| {
3975            editor.set_text("Hello", window, cx);
3976        });
3977
3978        cx.deactivate_window();
3979
3980        thread_view.update_in(cx, |thread_view, window, cx| {
3981            thread_view.send(window, cx);
3982        });
3983
3984        cx.run_until_parked();
3985
3986        assert!(
3987            cx.windows()
3988                .iter()
3989                .any(|window| window.downcast::<AgentNotification>().is_some())
3990        );
3991    }
3992
3993    #[gpui::test]
3994    async fn test_notification_for_error(cx: &mut TestAppContext) {
3995        init_test(cx);
3996
3997        let (thread_view, cx) =
3998            setup_thread_view(StubAgentServer::new(SaboteurAgentConnection), cx).await;
3999
4000        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4001        message_editor.update_in(cx, |editor, window, cx| {
4002            editor.set_text("Hello", window, cx);
4003        });
4004
4005        cx.deactivate_window();
4006
4007        thread_view.update_in(cx, |thread_view, window, cx| {
4008            thread_view.send(window, cx);
4009        });
4010
4011        cx.run_until_parked();
4012
4013        assert!(
4014            cx.windows()
4015                .iter()
4016                .any(|window| window.downcast::<AgentNotification>().is_some())
4017        );
4018    }
4019
4020    #[gpui::test]
4021    async fn test_notification_for_tool_authorization(cx: &mut TestAppContext) {
4022        init_test(cx);
4023
4024        let tool_call_id = acp::ToolCallId("1".into());
4025        let tool_call = acp::ToolCall {
4026            id: tool_call_id.clone(),
4027            title: "Label".into(),
4028            kind: acp::ToolKind::Edit,
4029            status: acp::ToolCallStatus::Pending,
4030            content: vec!["hi".into()],
4031            locations: vec![],
4032            raw_input: None,
4033            raw_output: None,
4034        };
4035        let connection =
4036            StubAgentConnection::new().with_permission_requests(HashMap::from_iter([(
4037                tool_call_id,
4038                vec![acp::PermissionOption {
4039                    id: acp::PermissionOptionId("1".into()),
4040                    name: "Allow".into(),
4041                    kind: acp::PermissionOptionKind::AllowOnce,
4042                }],
4043            )]));
4044
4045        connection.set_next_prompt_updates(vec![acp::SessionUpdate::ToolCall(tool_call)]);
4046
4047        let (thread_view, cx) = setup_thread_view(StubAgentServer::new(connection), cx).await;
4048
4049        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4050        message_editor.update_in(cx, |editor, window, cx| {
4051            editor.set_text("Hello", window, cx);
4052        });
4053
4054        cx.deactivate_window();
4055
4056        thread_view.update_in(cx, |thread_view, window, cx| {
4057            thread_view.send(window, cx);
4058        });
4059
4060        cx.run_until_parked();
4061
4062        assert!(
4063            cx.windows()
4064                .iter()
4065                .any(|window| window.downcast::<AgentNotification>().is_some())
4066        );
4067    }
4068
4069    async fn setup_thread_view(
4070        agent: impl AgentServer + 'static,
4071        cx: &mut TestAppContext,
4072    ) -> (Entity<AcpThreadView>, &mut VisualTestContext) {
4073        let fs = FakeFs::new(cx.executor());
4074        let project = Project::test(fs, [], cx).await;
4075        let (workspace, cx) =
4076            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4077
4078        let thread_store =
4079            cx.update(|_window, cx| cx.new(|cx| ThreadStore::fake(project.clone(), cx)));
4080        let text_thread_store =
4081            cx.update(|_window, cx| cx.new(|cx| TextThreadStore::fake(project.clone(), cx)));
4082
4083        let thread_view = cx.update(|window, cx| {
4084            cx.new(|cx| {
4085                AcpThreadView::new(
4086                    Rc::new(agent),
4087                    None,
4088                    workspace.downgrade(),
4089                    project,
4090                    thread_store.clone(),
4091                    text_thread_store.clone(),
4092                    window,
4093                    cx,
4094                )
4095            })
4096        });
4097        cx.run_until_parked();
4098        (thread_view, cx)
4099    }
4100
4101    fn add_to_workspace(thread_view: Entity<AcpThreadView>, cx: &mut VisualTestContext) {
4102        let workspace = thread_view.read_with(cx, |thread_view, _cx| thread_view.workspace.clone());
4103
4104        workspace
4105            .update_in(cx, |workspace, window, cx| {
4106                workspace.add_item_to_active_pane(
4107                    Box::new(cx.new(|_| ThreadViewItem(thread_view.clone()))),
4108                    None,
4109                    true,
4110                    window,
4111                    cx,
4112                );
4113            })
4114            .unwrap();
4115    }
4116
4117    struct ThreadViewItem(Entity<AcpThreadView>);
4118
4119    impl Item for ThreadViewItem {
4120        type Event = ();
4121
4122        fn include_in_nav_history() -> bool {
4123            false
4124        }
4125
4126        fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
4127            "Test".into()
4128        }
4129    }
4130
4131    impl EventEmitter<()> for ThreadViewItem {}
4132
4133    impl Focusable for ThreadViewItem {
4134        fn focus_handle(&self, cx: &App) -> FocusHandle {
4135            self.0.read(cx).focus_handle(cx).clone()
4136        }
4137    }
4138
4139    impl Render for ThreadViewItem {
4140        fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
4141            self.0.clone().into_any_element()
4142        }
4143    }
4144
4145    struct StubAgentServer<C> {
4146        connection: C,
4147    }
4148
4149    impl<C> StubAgentServer<C> {
4150        fn new(connection: C) -> Self {
4151            Self { connection }
4152        }
4153    }
4154
4155    impl StubAgentServer<StubAgentConnection> {
4156        fn default_response() -> Self {
4157            let conn = StubAgentConnection::new();
4158            conn.set_next_prompt_updates(vec![acp::SessionUpdate::AgentMessageChunk {
4159                content: "Default response".into(),
4160            }]);
4161            Self::new(conn)
4162        }
4163    }
4164
4165    impl<C> AgentServer for StubAgentServer<C>
4166    where
4167        C: 'static + AgentConnection + Send + Clone,
4168    {
4169        fn logo(&self) -> ui::IconName {
4170            ui::IconName::Ai
4171        }
4172
4173        fn name(&self) -> &'static str {
4174            "Test"
4175        }
4176
4177        fn empty_state_headline(&self) -> &'static str {
4178            "Test"
4179        }
4180
4181        fn empty_state_message(&self) -> &'static str {
4182            "Test"
4183        }
4184
4185        fn connect(
4186            &self,
4187            _root_dir: &Path,
4188            _project: &Entity<Project>,
4189            _cx: &mut App,
4190        ) -> Task<gpui::Result<Rc<dyn AgentConnection>>> {
4191            Task::ready(Ok(Rc::new(self.connection.clone())))
4192        }
4193
4194        fn into_any(self: Rc<Self>) -> Rc<dyn Any> {
4195            self
4196        }
4197    }
4198
4199    #[derive(Clone)]
4200    struct SaboteurAgentConnection;
4201
4202    impl AgentConnection for SaboteurAgentConnection {
4203        fn new_thread(
4204            self: Rc<Self>,
4205            project: Entity<Project>,
4206            _cwd: &Path,
4207            cx: &mut gpui::App,
4208        ) -> Task<gpui::Result<Entity<AcpThread>>> {
4209            Task::ready(Ok(cx.new(|cx| {
4210                let action_log = cx.new(|_| ActionLog::new(project.clone()));
4211                AcpThread::new(
4212                    "SaboteurAgentConnection",
4213                    self,
4214                    project,
4215                    action_log,
4216                    SessionId("test".into()),
4217                )
4218            })))
4219        }
4220
4221        fn auth_methods(&self) -> &[acp::AuthMethod] {
4222            &[]
4223        }
4224
4225        fn authenticate(
4226            &self,
4227            _method_id: acp::AuthMethodId,
4228            _cx: &mut App,
4229        ) -> Task<gpui::Result<()>> {
4230            unimplemented!()
4231        }
4232
4233        fn prompt(
4234            &self,
4235            _id: Option<acp_thread::UserMessageId>,
4236            _params: acp::PromptRequest,
4237            _cx: &mut App,
4238        ) -> Task<gpui::Result<acp::PromptResponse>> {
4239            Task::ready(Err(anyhow::anyhow!("Error prompting")))
4240        }
4241
4242        fn cancel(&self, _session_id: &acp::SessionId, _cx: &mut App) {
4243            unimplemented!()
4244        }
4245
4246        fn into_any(self: Rc<Self>) -> Rc<dyn Any> {
4247            self
4248        }
4249    }
4250
4251    pub(crate) fn init_test(cx: &mut TestAppContext) {
4252        cx.update(|cx| {
4253            let settings_store = SettingsStore::test(cx);
4254            cx.set_global(settings_store);
4255            language::init(cx);
4256            Project::init_settings(cx);
4257            AgentSettings::register(cx);
4258            workspace::init_settings(cx);
4259            ThemeSettings::register(cx);
4260            release_channel::init(SemanticVersion::default(), cx);
4261            EditorSettings::register(cx);
4262        });
4263    }
4264
4265    #[gpui::test]
4266    async fn test_rewind_views(cx: &mut TestAppContext) {
4267        init_test(cx);
4268
4269        let fs = FakeFs::new(cx.executor());
4270        fs.insert_tree(
4271            "/project",
4272            json!({
4273                "test1.txt": "old content 1",
4274                "test2.txt": "old content 2"
4275            }),
4276        )
4277        .await;
4278        let project = Project::test(fs, [Path::new("/project")], cx).await;
4279        let (workspace, cx) =
4280            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4281
4282        let thread_store =
4283            cx.update(|_window, cx| cx.new(|cx| ThreadStore::fake(project.clone(), cx)));
4284        let text_thread_store =
4285            cx.update(|_window, cx| cx.new(|cx| TextThreadStore::fake(project.clone(), cx)));
4286
4287        let connection = Rc::new(StubAgentConnection::new());
4288        let thread_view = cx.update(|window, cx| {
4289            cx.new(|cx| {
4290                AcpThreadView::new(
4291                    Rc::new(StubAgentServer::new(connection.as_ref().clone())),
4292                    None,
4293                    workspace.downgrade(),
4294                    project.clone(),
4295                    thread_store.clone(),
4296                    text_thread_store.clone(),
4297                    window,
4298                    cx,
4299                )
4300            })
4301        });
4302
4303        cx.run_until_parked();
4304
4305        let thread = thread_view
4306            .read_with(cx, |view, _| view.thread().cloned())
4307            .unwrap();
4308
4309        // First user message
4310        connection.set_next_prompt_updates(vec![acp::SessionUpdate::ToolCall(acp::ToolCall {
4311            id: acp::ToolCallId("tool1".into()),
4312            title: "Edit file 1".into(),
4313            kind: acp::ToolKind::Edit,
4314            status: acp::ToolCallStatus::Completed,
4315            content: vec![acp::ToolCallContent::Diff {
4316                diff: acp::Diff {
4317                    path: "/project/test1.txt".into(),
4318                    old_text: Some("old content 1".into()),
4319                    new_text: "new content 1".into(),
4320                },
4321            }],
4322            locations: vec![],
4323            raw_input: None,
4324            raw_output: None,
4325        })]);
4326
4327        thread
4328            .update(cx, |thread, cx| thread.send_raw("Give me a diff", cx))
4329            .await
4330            .unwrap();
4331        cx.run_until_parked();
4332
4333        thread.read_with(cx, |thread, _| {
4334            assert_eq!(thread.entries().len(), 2);
4335        });
4336
4337        thread_view.read_with(cx, |view, cx| {
4338            view.entry_view_state.read_with(cx, |entry_view_state, _| {
4339                assert!(
4340                    entry_view_state
4341                        .entry(0)
4342                        .unwrap()
4343                        .message_editor()
4344                        .is_some()
4345                );
4346                assert!(entry_view_state.entry(1).unwrap().has_content());
4347            });
4348        });
4349
4350        // Second user message
4351        connection.set_next_prompt_updates(vec![acp::SessionUpdate::ToolCall(acp::ToolCall {
4352            id: acp::ToolCallId("tool2".into()),
4353            title: "Edit file 2".into(),
4354            kind: acp::ToolKind::Edit,
4355            status: acp::ToolCallStatus::Completed,
4356            content: vec![acp::ToolCallContent::Diff {
4357                diff: acp::Diff {
4358                    path: "/project/test2.txt".into(),
4359                    old_text: Some("old content 2".into()),
4360                    new_text: "new content 2".into(),
4361                },
4362            }],
4363            locations: vec![],
4364            raw_input: None,
4365            raw_output: None,
4366        })]);
4367
4368        thread
4369            .update(cx, |thread, cx| thread.send_raw("Another one", cx))
4370            .await
4371            .unwrap();
4372        cx.run_until_parked();
4373
4374        let second_user_message_id = thread.read_with(cx, |thread, _| {
4375            assert_eq!(thread.entries().len(), 4);
4376            let AgentThreadEntry::UserMessage(user_message) = &thread.entries()[2] else {
4377                panic!();
4378            };
4379            user_message.id.clone().unwrap()
4380        });
4381
4382        thread_view.read_with(cx, |view, cx| {
4383            view.entry_view_state.read_with(cx, |entry_view_state, _| {
4384                assert!(
4385                    entry_view_state
4386                        .entry(0)
4387                        .unwrap()
4388                        .message_editor()
4389                        .is_some()
4390                );
4391                assert!(entry_view_state.entry(1).unwrap().has_content());
4392                assert!(
4393                    entry_view_state
4394                        .entry(2)
4395                        .unwrap()
4396                        .message_editor()
4397                        .is_some()
4398                );
4399                assert!(entry_view_state.entry(3).unwrap().has_content());
4400            });
4401        });
4402
4403        // Rewind to first message
4404        thread
4405            .update(cx, |thread, cx| thread.rewind(second_user_message_id, cx))
4406            .await
4407            .unwrap();
4408
4409        cx.run_until_parked();
4410
4411        thread.read_with(cx, |thread, _| {
4412            assert_eq!(thread.entries().len(), 2);
4413        });
4414
4415        thread_view.read_with(cx, |view, cx| {
4416            view.entry_view_state.read_with(cx, |entry_view_state, _| {
4417                assert!(
4418                    entry_view_state
4419                        .entry(0)
4420                        .unwrap()
4421                        .message_editor()
4422                        .is_some()
4423                );
4424                assert!(entry_view_state.entry(1).unwrap().has_content());
4425
4426                // Old views should be dropped
4427                assert!(entry_view_state.entry(2).is_none());
4428                assert!(entry_view_state.entry(3).is_none());
4429            });
4430        });
4431    }
4432
4433    #[gpui::test]
4434    async fn test_message_editing_cancel(cx: &mut TestAppContext) {
4435        init_test(cx);
4436
4437        let connection = StubAgentConnection::new();
4438
4439        connection.set_next_prompt_updates(vec![acp::SessionUpdate::AgentMessageChunk {
4440            content: acp::ContentBlock::Text(acp::TextContent {
4441                text: "Response".into(),
4442                annotations: None,
4443            }),
4444        }]);
4445
4446        let (thread_view, cx) = setup_thread_view(StubAgentServer::new(connection), cx).await;
4447        add_to_workspace(thread_view.clone(), cx);
4448
4449        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4450        message_editor.update_in(cx, |editor, window, cx| {
4451            editor.set_text("Original message to edit", window, cx);
4452        });
4453        thread_view.update_in(cx, |thread_view, window, cx| {
4454            thread_view.send(window, cx);
4455        });
4456
4457        cx.run_until_parked();
4458
4459        let user_message_editor = thread_view.read_with(cx, |view, cx| {
4460            assert_eq!(view.editing_message, None);
4461
4462            view.entry_view_state
4463                .read(cx)
4464                .entry(0)
4465                .unwrap()
4466                .message_editor()
4467                .unwrap()
4468                .clone()
4469        });
4470
4471        // Focus
4472        cx.focus(&user_message_editor);
4473        thread_view.read_with(cx, |view, _cx| {
4474            assert_eq!(view.editing_message, Some(0));
4475        });
4476
4477        // Edit
4478        user_message_editor.update_in(cx, |editor, window, cx| {
4479            editor.set_text("Edited message content", window, cx);
4480        });
4481
4482        // Cancel
4483        user_message_editor.update_in(cx, |_editor, window, cx| {
4484            window.dispatch_action(Box::new(editor::actions::Cancel), cx);
4485        });
4486
4487        thread_view.read_with(cx, |view, _cx| {
4488            assert_eq!(view.editing_message, None);
4489        });
4490
4491        user_message_editor.read_with(cx, |editor, cx| {
4492            assert_eq!(editor.text(cx), "Original message to edit");
4493        });
4494    }
4495
4496    #[gpui::test]
4497    async fn test_message_editing_regenerate(cx: &mut TestAppContext) {
4498        init_test(cx);
4499
4500        let connection = StubAgentConnection::new();
4501
4502        connection.set_next_prompt_updates(vec![acp::SessionUpdate::AgentMessageChunk {
4503            content: acp::ContentBlock::Text(acp::TextContent {
4504                text: "Response".into(),
4505                annotations: None,
4506            }),
4507        }]);
4508
4509        let (thread_view, cx) =
4510            setup_thread_view(StubAgentServer::new(connection.clone()), cx).await;
4511        add_to_workspace(thread_view.clone(), cx);
4512
4513        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4514        message_editor.update_in(cx, |editor, window, cx| {
4515            editor.set_text("Original message to edit", window, cx);
4516        });
4517        thread_view.update_in(cx, |thread_view, window, cx| {
4518            thread_view.send(window, cx);
4519        });
4520
4521        cx.run_until_parked();
4522
4523        let user_message_editor = thread_view.read_with(cx, |view, cx| {
4524            assert_eq!(view.editing_message, None);
4525            assert_eq!(view.thread().unwrap().read(cx).entries().len(), 2);
4526
4527            view.entry_view_state
4528                .read(cx)
4529                .entry(0)
4530                .unwrap()
4531                .message_editor()
4532                .unwrap()
4533                .clone()
4534        });
4535
4536        // Focus
4537        cx.focus(&user_message_editor);
4538
4539        // Edit
4540        user_message_editor.update_in(cx, |editor, window, cx| {
4541            editor.set_text("Edited message content", window, cx);
4542        });
4543
4544        // Send
4545        connection.set_next_prompt_updates(vec![acp::SessionUpdate::AgentMessageChunk {
4546            content: acp::ContentBlock::Text(acp::TextContent {
4547                text: "New Response".into(),
4548                annotations: None,
4549            }),
4550        }]);
4551
4552        user_message_editor.update_in(cx, |_editor, window, cx| {
4553            window.dispatch_action(Box::new(Chat), cx);
4554        });
4555
4556        cx.run_until_parked();
4557
4558        thread_view.read_with(cx, |view, cx| {
4559            assert_eq!(view.editing_message, None);
4560
4561            let entries = view.thread().unwrap().read(cx).entries();
4562            assert_eq!(entries.len(), 2);
4563            assert_eq!(
4564                entries[0].to_markdown(cx),
4565                "## User\n\nEdited message content\n\n"
4566            );
4567            assert_eq!(
4568                entries[1].to_markdown(cx),
4569                "## Assistant\n\nNew Response\n\n"
4570            );
4571
4572            let new_editor = view.entry_view_state.read_with(cx, |state, _cx| {
4573                assert!(!state.entry(1).unwrap().has_content());
4574                state.entry(0).unwrap().message_editor().unwrap().clone()
4575            });
4576
4577            assert_eq!(new_editor.read(cx).text(cx), "Edited message content");
4578        })
4579    }
4580
4581    #[gpui::test]
4582    async fn test_message_editing_while_generating(cx: &mut TestAppContext) {
4583        init_test(cx);
4584
4585        let connection = StubAgentConnection::new();
4586
4587        let (thread_view, cx) =
4588            setup_thread_view(StubAgentServer::new(connection.clone()), cx).await;
4589        add_to_workspace(thread_view.clone(), cx);
4590
4591        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4592        message_editor.update_in(cx, |editor, window, cx| {
4593            editor.set_text("Original message to edit", window, cx);
4594        });
4595        thread_view.update_in(cx, |thread_view, window, cx| {
4596            thread_view.send(window, cx);
4597        });
4598
4599        cx.run_until_parked();
4600
4601        let (user_message_editor, session_id) = thread_view.read_with(cx, |view, cx| {
4602            let thread = view.thread().unwrap().read(cx);
4603            assert_eq!(thread.entries().len(), 1);
4604
4605            let editor = view
4606                .entry_view_state
4607                .read(cx)
4608                .entry(0)
4609                .unwrap()
4610                .message_editor()
4611                .unwrap()
4612                .clone();
4613
4614            (editor, thread.session_id().clone())
4615        });
4616
4617        // Focus
4618        cx.focus(&user_message_editor);
4619
4620        thread_view.read_with(cx, |view, _cx| {
4621            assert_eq!(view.editing_message, Some(0));
4622        });
4623
4624        // Edit
4625        user_message_editor.update_in(cx, |editor, window, cx| {
4626            editor.set_text("Edited message content", window, cx);
4627        });
4628
4629        thread_view.read_with(cx, |view, _cx| {
4630            assert_eq!(view.editing_message, Some(0));
4631        });
4632
4633        // Finish streaming response
4634        cx.update(|_, cx| {
4635            connection.send_update(
4636                session_id.clone(),
4637                acp::SessionUpdate::AgentMessageChunk {
4638                    content: acp::ContentBlock::Text(acp::TextContent {
4639                        text: "Response".into(),
4640                        annotations: None,
4641                    }),
4642                },
4643                cx,
4644            );
4645            connection.end_turn(session_id, acp::StopReason::EndTurn);
4646        });
4647
4648        thread_view.read_with(cx, |view, _cx| {
4649            assert_eq!(view.editing_message, Some(0));
4650        });
4651
4652        cx.run_until_parked();
4653
4654        // Should still be editing
4655        cx.update(|window, cx| {
4656            assert!(user_message_editor.focus_handle(cx).is_focused(window));
4657            assert_eq!(thread_view.read(cx).editing_message, Some(0));
4658            assert_eq!(
4659                user_message_editor.read(cx).text(cx),
4660                "Edited message content"
4661            );
4662        });
4663    }
4664
4665    #[gpui::test]
4666    async fn test_interrupt(cx: &mut TestAppContext) {
4667        init_test(cx);
4668
4669        let connection = StubAgentConnection::new();
4670
4671        let (thread_view, cx) =
4672            setup_thread_view(StubAgentServer::new(connection.clone()), cx).await;
4673        add_to_workspace(thread_view.clone(), cx);
4674
4675        let message_editor = cx.read(|cx| thread_view.read(cx).message_editor.clone());
4676        message_editor.update_in(cx, |editor, window, cx| {
4677            editor.set_text("Message 1", window, cx);
4678        });
4679        thread_view.update_in(cx, |thread_view, window, cx| {
4680            thread_view.send(window, cx);
4681        });
4682
4683        let (thread, session_id) = thread_view.read_with(cx, |view, cx| {
4684            let thread = view.thread().unwrap();
4685
4686            (thread.clone(), thread.read(cx).session_id().clone())
4687        });
4688
4689        cx.run_until_parked();
4690
4691        cx.update(|_, cx| {
4692            connection.send_update(
4693                session_id.clone(),
4694                acp::SessionUpdate::AgentMessageChunk {
4695                    content: "Message 1 resp".into(),
4696                },
4697                cx,
4698            );
4699        });
4700
4701        cx.run_until_parked();
4702
4703        thread.read_with(cx, |thread, cx| {
4704            assert_eq!(
4705                thread.to_markdown(cx),
4706                indoc::indoc! {"
4707                    ## User
4708
4709                    Message 1
4710
4711                    ## Assistant
4712
4713                    Message 1 resp
4714
4715                "}
4716            )
4717        });
4718
4719        message_editor.update_in(cx, |editor, window, cx| {
4720            editor.set_text("Message 2", window, cx);
4721        });
4722        thread_view.update_in(cx, |thread_view, window, cx| {
4723            thread_view.send(window, cx);
4724        });
4725
4726        cx.update(|_, cx| {
4727            // Simulate a response sent after beginning to cancel
4728            connection.send_update(
4729                session_id.clone(),
4730                acp::SessionUpdate::AgentMessageChunk {
4731                    content: "onse".into(),
4732                },
4733                cx,
4734            );
4735        });
4736
4737        cx.run_until_parked();
4738
4739        // Last Message 1 response should appear before Message 2
4740        thread.read_with(cx, |thread, cx| {
4741            assert_eq!(
4742                thread.to_markdown(cx),
4743                indoc::indoc! {"
4744                    ## User
4745
4746                    Message 1
4747
4748                    ## Assistant
4749
4750                    Message 1 response
4751
4752                    ## User
4753
4754                    Message 2
4755
4756                "}
4757            )
4758        });
4759
4760        cx.update(|_, cx| {
4761            connection.send_update(
4762                session_id.clone(),
4763                acp::SessionUpdate::AgentMessageChunk {
4764                    content: "Message 2 response".into(),
4765                },
4766                cx,
4767            );
4768            connection.end_turn(session_id.clone(), acp::StopReason::EndTurn);
4769        });
4770
4771        cx.run_until_parked();
4772
4773        thread.read_with(cx, |thread, cx| {
4774            assert_eq!(
4775                thread.to_markdown(cx),
4776                indoc::indoc! {"
4777                    ## User
4778
4779                    Message 1
4780
4781                    ## Assistant
4782
4783                    Message 1 response
4784
4785                    ## User
4786
4787                    Message 2
4788
4789                    ## Assistant
4790
4791                    Message 2 response
4792
4793                "}
4794            )
4795        });
4796    }
4797}