agent_panel.rs

   1use std::cell::RefCell;
   2use std::ops::Range;
   3use std::path::Path;
   4use std::rc::Rc;
   5use std::sync::Arc;
   6use std::time::Duration;
   7
   8use agent_servers::AgentServer;
   9use db::kvp::{Dismissable, KEY_VALUE_STORE};
  10use serde::{Deserialize, Serialize};
  11
  12use crate::NewExternalAgentThread;
  13use crate::agent_diff::AgentDiffThread;
  14use crate::message_editor::{MAX_EDITOR_LINES, MIN_EDITOR_LINES};
  15use crate::ui::NewThreadButton;
  16use crate::{
  17    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  18    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  19    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  20    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu, ToggleOptionsMenu,
  21    acp::AcpThreadView,
  22    active_thread::{self, ActiveThread, ActiveThreadEvent},
  23    agent_configuration::{AgentConfiguration, AssistantConfigurationEvent},
  24    agent_diff::AgentDiff,
  25    message_editor::{MessageEditor, MessageEditorEvent},
  26    slash_command::SlashCommandCompletionProvider,
  27    text_thread_editor::{
  28        AgentPanelDelegate, TextThreadEditor, humanize_token_count, make_lsp_adapter_delegate,
  29        render_remaining_tokens,
  30    },
  31    thread_history::{HistoryEntryElement, ThreadHistory},
  32    ui::{AgentOnboardingModal, EndTrialUpsell},
  33};
  34use agent::{
  35    Thread, ThreadError, ThreadEvent, ThreadId, ThreadSummary, TokenUsageRatio,
  36    context_store::ContextStore,
  37    history_store::{HistoryEntryId, HistoryStore},
  38    thread_store::{TextThreadStore, ThreadStore},
  39};
  40use agent_settings::{AgentDockPosition, AgentSettings, CompletionMode, DefaultView};
  41use ai_onboarding::AgentPanelOnboarding;
  42use anyhow::{Result, anyhow};
  43use assistant_context::{AssistantContext, ContextEvent, ContextSummary};
  44use assistant_slash_command::SlashCommandWorkingSet;
  45use assistant_tool::ToolWorkingSet;
  46use client::{UserStore, zed_urls};
  47use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
  48use feature_flags::{self, FeatureFlagAppExt};
  49use fs::Fs;
  50use gpui::{
  51    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
  52    Corner, DismissEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable, Hsla,
  53    KeyContext, Pixels, Subscription, Task, UpdateGlobal, WeakEntity, prelude::*,
  54    pulsating_between,
  55};
  56use language::LanguageRegistry;
  57use language_model::{
  58    ConfigurationError, ConfiguredModel, LanguageModelProviderTosView, LanguageModelRegistry,
  59};
  60use project::{Project, ProjectPath, Worktree};
  61use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
  62use proto::Plan;
  63use rules_library::{RulesLibrary, open_rules_library};
  64use search::{BufferSearchBar, buffer_search};
  65use settings::{Settings, update_settings_file};
  66use theme::ThemeSettings;
  67use time::UtcOffset;
  68use ui::utils::WithRemSize;
  69use ui::{
  70    Banner, Callout, ContextMenu, ContextMenuEntry, ElevationIndex, KeyBinding, PopoverMenu,
  71    PopoverMenuHandle, ProgressBar, Tab, Tooltip, prelude::*,
  72};
  73use util::ResultExt as _;
  74use workspace::{
  75    CollaboratorId, DraggedSelection, DraggedTab, ToggleZoom, ToolbarItemView, Workspace,
  76    dock::{DockPosition, Panel, PanelEvent},
  77};
  78use zed_actions::{
  79    DecreaseBufferFontSize, IncreaseBufferFontSize, ResetBufferFontSize,
  80    agent::{OpenConfiguration, OpenOnboardingModal, ResetOnboarding, ToggleModelSelector},
  81    assistant::{OpenRulesLibrary, ToggleFocus},
  82};
  83use zed_llm_client::{CompletionIntent, UsageLimit};
  84
  85const AGENT_PANEL_KEY: &str = "agent_panel";
  86
  87#[derive(Serialize, Deserialize)]
  88struct SerializedAgentPanel {
  89    width: Option<Pixels>,
  90}
  91
  92pub fn init(cx: &mut App) {
  93    cx.observe_new(
  94        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  95            workspace
  96                .register_action(|workspace, action: &NewThread, window, cx| {
  97                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  98                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  99                        workspace.focus_panel::<AgentPanel>(window, cx);
 100                    }
 101                })
 102                .register_action(|workspace, _: &OpenHistory, window, cx| {
 103                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 104                        workspace.focus_panel::<AgentPanel>(window, cx);
 105                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
 106                    }
 107                })
 108                .register_action(|workspace, _: &OpenConfiguration, window, cx| {
 109                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 110                        workspace.focus_panel::<AgentPanel>(window, cx);
 111                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 112                    }
 113                })
 114                .register_action(|workspace, _: &NewTextThread, window, cx| {
 115                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 116                        workspace.focus_panel::<AgentPanel>(window, cx);
 117                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 118                    }
 119                })
 120                .register_action(|workspace, action: &NewExternalAgentThread, window, cx| {
 121                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 122                        workspace.focus_panel::<AgentPanel>(window, cx);
 123                        panel.update(cx, |panel, cx| {
 124                            panel.new_external_thread(action.agent, window, cx)
 125                        });
 126                    }
 127                })
 128                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 129                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 130                        workspace.focus_panel::<AgentPanel>(window, cx);
 131                        panel.update(cx, |panel, cx| {
 132                            panel.deploy_rules_library(action, window, cx)
 133                        });
 134                    }
 135                })
 136                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 137                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 138                        workspace.focus_panel::<AgentPanel>(window, cx);
 139                        match &panel.read(cx).active_view {
 140                            ActiveView::Thread { thread, .. } => {
 141                                let thread = thread.read(cx).thread().clone();
 142                                AgentDiffPane::deploy_in_workspace(thread, workspace, window, cx);
 143                            }
 144                            ActiveView::ExternalAgentThread { .. }
 145                            | ActiveView::TextThread { .. }
 146                            | ActiveView::History
 147                            | ActiveView::Configuration => {}
 148                        }
 149                    }
 150                })
 151                .register_action(|workspace, _: &Follow, window, cx| {
 152                    workspace.follow(CollaboratorId::Agent, window, cx);
 153                })
 154                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 155                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 156                        return;
 157                    };
 158                    workspace.focus_panel::<AgentPanel>(window, cx);
 159                    panel.update(cx, |panel, cx| {
 160                        if let Some(message_editor) = panel.active_message_editor() {
 161                            message_editor.update(cx, |editor, cx| {
 162                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 163                            });
 164                        }
 165                    });
 166                })
 167                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 168                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 169                        workspace.focus_panel::<AgentPanel>(window, cx);
 170                        panel.update(cx, |panel, cx| {
 171                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 172                        });
 173                    }
 174                })
 175                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 176                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 177                        workspace.focus_panel::<AgentPanel>(window, cx);
 178                        panel.update(cx, |panel, cx| {
 179                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 180                        });
 181                    }
 182                })
 183                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 184                    AgentOnboardingModal::toggle(workspace, window, cx)
 185                })
 186                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 187                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 188                    window.refresh();
 189                })
 190                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 191                    OnboardingUpsell::set_dismissed(false, cx);
 192                })
 193                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 194                    TrialEndUpsell::set_dismissed(false, cx);
 195                });
 196        },
 197    )
 198    .detach();
 199}
 200
 201enum ActiveView {
 202    Thread {
 203        thread: Entity<ActiveThread>,
 204        change_title_editor: Entity<Editor>,
 205        message_editor: Entity<MessageEditor>,
 206        _subscriptions: Vec<gpui::Subscription>,
 207    },
 208    ExternalAgentThread {
 209        thread_view: Entity<AcpThreadView>,
 210    },
 211    TextThread {
 212        context_editor: Entity<TextThreadEditor>,
 213        title_editor: Entity<Editor>,
 214        buffer_search_bar: Entity<BufferSearchBar>,
 215        _subscriptions: Vec<gpui::Subscription>,
 216    },
 217    History,
 218    Configuration,
 219}
 220
 221enum WhichFontSize {
 222    AgentFont,
 223    BufferFont,
 224    None,
 225}
 226
 227impl ActiveView {
 228    pub fn which_font_size_used(&self) -> WhichFontSize {
 229        match self {
 230            ActiveView::Thread { .. }
 231            | ActiveView::ExternalAgentThread { .. }
 232            | ActiveView::History => WhichFontSize::AgentFont,
 233            ActiveView::TextThread { .. } => WhichFontSize::BufferFont,
 234            ActiveView::Configuration => WhichFontSize::None,
 235        }
 236    }
 237
 238    pub fn thread(
 239        active_thread: Entity<ActiveThread>,
 240        message_editor: Entity<MessageEditor>,
 241        window: &mut Window,
 242        cx: &mut Context<AgentPanel>,
 243    ) -> Self {
 244        let summary = active_thread.read(cx).summary(cx).or_default();
 245
 246        let editor = cx.new(|cx| {
 247            let mut editor = Editor::single_line(window, cx);
 248            editor.set_text(summary.clone(), window, cx);
 249            editor
 250        });
 251
 252        let subscriptions = vec![
 253            cx.subscribe(&message_editor, |this, _, event, cx| match event {
 254                MessageEditorEvent::Changed | MessageEditorEvent::EstimatedTokenCount => {
 255                    cx.notify();
 256                }
 257                MessageEditorEvent::ScrollThreadToBottom => match &this.active_view {
 258                    ActiveView::Thread { thread, .. } => {
 259                        thread.update(cx, |thread, cx| {
 260                            thread.scroll_to_bottom(cx);
 261                        });
 262                    }
 263                    ActiveView::ExternalAgentThread { .. } => {}
 264                    ActiveView::TextThread { .. }
 265                    | ActiveView::History
 266                    | ActiveView::Configuration => {}
 267                },
 268            }),
 269            window.subscribe(&editor, cx, {
 270                {
 271                    let thread = active_thread.clone();
 272                    move |editor, event, window, cx| match event {
 273                        EditorEvent::BufferEdited => {
 274                            let new_summary = editor.read(cx).text(cx);
 275
 276                            thread.update(cx, |thread, cx| {
 277                                thread.thread().update(cx, |thread, cx| {
 278                                    thread.set_summary(new_summary, cx);
 279                                });
 280                            })
 281                        }
 282                        EditorEvent::Blurred => {
 283                            if editor.read(cx).text(cx).is_empty() {
 284                                let summary = thread.read(cx).summary(cx).or_default();
 285
 286                                editor.update(cx, |editor, cx| {
 287                                    editor.set_text(summary, window, cx);
 288                                });
 289                            }
 290                        }
 291                        _ => {}
 292                    }
 293                }
 294            }),
 295            cx.subscribe(&active_thread, |_, _, event, cx| match &event {
 296                ActiveThreadEvent::EditingMessageTokenCountChanged => {
 297                    cx.notify();
 298                }
 299            }),
 300            cx.subscribe_in(&active_thread.read(cx).thread().clone(), window, {
 301                let editor = editor.clone();
 302                move |_, thread, event, window, cx| match event {
 303                    ThreadEvent::SummaryGenerated => {
 304                        let summary = thread.read(cx).summary().or_default();
 305
 306                        editor.update(cx, |editor, cx| {
 307                            editor.set_text(summary, window, cx);
 308                        })
 309                    }
 310                    ThreadEvent::MessageAdded(_) => {
 311                        cx.notify();
 312                    }
 313                    _ => {}
 314                }
 315            }),
 316        ];
 317
 318        Self::Thread {
 319            change_title_editor: editor,
 320            thread: active_thread,
 321            message_editor: message_editor,
 322            _subscriptions: subscriptions,
 323        }
 324    }
 325
 326    pub fn prompt_editor(
 327        context_editor: Entity<TextThreadEditor>,
 328        history_store: Entity<HistoryStore>,
 329        language_registry: Arc<LanguageRegistry>,
 330        window: &mut Window,
 331        cx: &mut App,
 332    ) -> Self {
 333        let title = context_editor.read(cx).title(cx).to_string();
 334
 335        let editor = cx.new(|cx| {
 336            let mut editor = Editor::single_line(window, cx);
 337            editor.set_text(title, window, cx);
 338            editor
 339        });
 340
 341        // This is a workaround for `editor.set_text` emitting a `BufferEdited` event, which would
 342        // cause a custom summary to be set. The presence of this custom summary would cause
 343        // summarization to not happen.
 344        let mut suppress_first_edit = true;
 345
 346        let subscriptions = vec![
 347            window.subscribe(&editor, cx, {
 348                {
 349                    let context_editor = context_editor.clone();
 350                    move |editor, event, window, cx| match event {
 351                        EditorEvent::BufferEdited => {
 352                            if suppress_first_edit {
 353                                suppress_first_edit = false;
 354                                return;
 355                            }
 356                            let new_summary = editor.read(cx).text(cx);
 357
 358                            context_editor.update(cx, |context_editor, cx| {
 359                                context_editor
 360                                    .context()
 361                                    .update(cx, |assistant_context, cx| {
 362                                        assistant_context.set_custom_summary(new_summary, cx);
 363                                    })
 364                            })
 365                        }
 366                        EditorEvent::Blurred => {
 367                            if editor.read(cx).text(cx).is_empty() {
 368                                let summary = context_editor
 369                                    .read(cx)
 370                                    .context()
 371                                    .read(cx)
 372                                    .summary()
 373                                    .or_default();
 374
 375                                editor.update(cx, |editor, cx| {
 376                                    editor.set_text(summary, window, cx);
 377                                });
 378                            }
 379                        }
 380                        _ => {}
 381                    }
 382                }
 383            }),
 384            window.subscribe(&context_editor.read(cx).context().clone(), cx, {
 385                let editor = editor.clone();
 386                move |assistant_context, event, window, cx| match event {
 387                    ContextEvent::SummaryGenerated => {
 388                        let summary = assistant_context.read(cx).summary().or_default();
 389
 390                        editor.update(cx, |editor, cx| {
 391                            editor.set_text(summary, window, cx);
 392                        })
 393                    }
 394                    ContextEvent::PathChanged { old_path, new_path } => {
 395                        history_store.update(cx, |history_store, cx| {
 396                            if let Some(old_path) = old_path {
 397                                history_store
 398                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 399                            } else {
 400                                history_store.push_recently_opened_entry(
 401                                    HistoryEntryId::Context(new_path.clone()),
 402                                    cx,
 403                                );
 404                            }
 405                        });
 406                    }
 407                    _ => {}
 408                }
 409            }),
 410        ];
 411
 412        let buffer_search_bar =
 413            cx.new(|cx| BufferSearchBar::new(Some(language_registry), window, cx));
 414        buffer_search_bar.update(cx, |buffer_search_bar, cx| {
 415            buffer_search_bar.set_active_pane_item(Some(&context_editor), window, cx)
 416        });
 417
 418        Self::TextThread {
 419            context_editor,
 420            title_editor: editor,
 421            buffer_search_bar,
 422            _subscriptions: subscriptions,
 423        }
 424    }
 425}
 426
 427pub struct AgentPanel {
 428    workspace: WeakEntity<Workspace>,
 429    user_store: Entity<UserStore>,
 430    project: Entity<Project>,
 431    fs: Arc<dyn Fs>,
 432    language_registry: Arc<LanguageRegistry>,
 433    thread_store: Entity<ThreadStore>,
 434    _default_model_subscription: Subscription,
 435    context_store: Entity<TextThreadStore>,
 436    prompt_store: Option<Entity<PromptStore>>,
 437    inline_assist_context_store: Entity<ContextStore>,
 438    configuration: Option<Entity<AgentConfiguration>>,
 439    configuration_subscription: Option<Subscription>,
 440    local_timezone: UtcOffset,
 441    active_view: ActiveView,
 442    acp_message_history:
 443        Rc<RefCell<crate::acp::MessageHistory<agentic_coding_protocol::SendUserMessageParams>>>,
 444    previous_view: Option<ActiveView>,
 445    history_store: Entity<HistoryStore>,
 446    history: Entity<ThreadHistory>,
 447    hovered_recent_history_item: Option<usize>,
 448    new_thread_menu_handle: PopoverMenuHandle<ContextMenu>,
 449    agent_panel_menu_handle: PopoverMenuHandle<ContextMenu>,
 450    assistant_navigation_menu_handle: PopoverMenuHandle<ContextMenu>,
 451    assistant_navigation_menu: Option<Entity<ContextMenu>>,
 452    width: Option<Pixels>,
 453    height: Option<Pixels>,
 454    zoomed: bool,
 455    pending_serialization: Option<Task<Result<()>>>,
 456    onboarding: Entity<AgentPanelOnboarding>,
 457}
 458
 459impl AgentPanel {
 460    fn serialize(&mut self, cx: &mut Context<Self>) {
 461        let width = self.width;
 462        self.pending_serialization = Some(cx.background_spawn(async move {
 463            KEY_VALUE_STORE
 464                .write_kvp(
 465                    AGENT_PANEL_KEY.into(),
 466                    serde_json::to_string(&SerializedAgentPanel { width })?,
 467                )
 468                .await?;
 469            anyhow::Ok(())
 470        }));
 471    }
 472    pub fn load(
 473        workspace: WeakEntity<Workspace>,
 474        prompt_builder: Arc<PromptBuilder>,
 475        mut cx: AsyncWindowContext,
 476    ) -> Task<Result<Entity<Self>>> {
 477        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
 478        cx.spawn(async move |cx| {
 479            let prompt_store = match prompt_store {
 480                Ok(prompt_store) => prompt_store.await.ok(),
 481                Err(_) => None,
 482            };
 483            let tools = cx.new(|_| ToolWorkingSet::default())?;
 484            let thread_store = workspace
 485                .update(cx, |workspace, cx| {
 486                    let project = workspace.project().clone();
 487                    ThreadStore::load(
 488                        project,
 489                        tools.clone(),
 490                        prompt_store.clone(),
 491                        prompt_builder.clone(),
 492                        cx,
 493                    )
 494                })?
 495                .await?;
 496
 497            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
 498            let context_store = workspace
 499                .update(cx, |workspace, cx| {
 500                    let project = workspace.project().clone();
 501                    assistant_context::ContextStore::new(
 502                        project,
 503                        prompt_builder.clone(),
 504                        slash_commands,
 505                        cx,
 506                    )
 507                })?
 508                .await?;
 509
 510            let serialized_panel = if let Some(panel) = cx
 511                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(AGENT_PANEL_KEY) })
 512                .await
 513                .log_err()
 514                .flatten()
 515            {
 516                Some(serde_json::from_str::<SerializedAgentPanel>(&panel)?)
 517            } else {
 518                None
 519            };
 520
 521            let panel = workspace.update_in(cx, |workspace, window, cx| {
 522                let panel = cx.new(|cx| {
 523                    Self::new(
 524                        workspace,
 525                        thread_store,
 526                        context_store,
 527                        prompt_store,
 528                        window,
 529                        cx,
 530                    )
 531                });
 532                if let Some(serialized_panel) = serialized_panel {
 533                    panel.update(cx, |panel, cx| {
 534                        panel.width = serialized_panel.width.map(|w| w.round());
 535                        cx.notify();
 536                    });
 537                }
 538                panel
 539            })?;
 540
 541            Ok(panel)
 542        })
 543    }
 544
 545    fn new(
 546        workspace: &Workspace,
 547        thread_store: Entity<ThreadStore>,
 548        context_store: Entity<TextThreadStore>,
 549        prompt_store: Option<Entity<PromptStore>>,
 550        window: &mut Window,
 551        cx: &mut Context<Self>,
 552    ) -> Self {
 553        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
 554        let fs = workspace.app_state().fs.clone();
 555        let user_store = workspace.app_state().user_store.clone();
 556        let project = workspace.project();
 557        let language_registry = project.read(cx).languages().clone();
 558        let client = workspace.client().clone();
 559        let workspace = workspace.weak_handle();
 560        let weak_self = cx.entity().downgrade();
 561
 562        let message_editor_context_store =
 563            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 564        let inline_assist_context_store =
 565            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 566
 567        let message_editor = cx.new(|cx| {
 568            MessageEditor::new(
 569                fs.clone(),
 570                workspace.clone(),
 571                user_store.clone(),
 572                message_editor_context_store.clone(),
 573                prompt_store.clone(),
 574                thread_store.downgrade(),
 575                context_store.downgrade(),
 576                thread.clone(),
 577                window,
 578                cx,
 579            )
 580        });
 581
 582        let thread_id = thread.read(cx).id().clone();
 583        let history_store = cx.new(|cx| {
 584            HistoryStore::new(
 585                thread_store.clone(),
 586                context_store.clone(),
 587                [HistoryEntryId::Thread(thread_id)],
 588                cx,
 589            )
 590        });
 591
 592        cx.observe(&history_store, |_, _, cx| cx.notify()).detach();
 593
 594        let active_thread = cx.new(|cx| {
 595            ActiveThread::new(
 596                thread.clone(),
 597                thread_store.clone(),
 598                context_store.clone(),
 599                message_editor_context_store.clone(),
 600                language_registry.clone(),
 601                workspace.clone(),
 602                window,
 603                cx,
 604            )
 605        });
 606
 607        let panel_type = AgentSettings::get_global(cx).default_view;
 608        let active_view = match panel_type {
 609            DefaultView::Thread => ActiveView::thread(active_thread, message_editor, window, cx),
 610            DefaultView::TextThread => {
 611                let context =
 612                    context_store.update(cx, |context_store, cx| context_store.create(cx));
 613                let lsp_adapter_delegate = make_lsp_adapter_delegate(&project.clone(), cx).unwrap();
 614                let context_editor = cx.new(|cx| {
 615                    let mut editor = TextThreadEditor::for_context(
 616                        context,
 617                        fs.clone(),
 618                        workspace.clone(),
 619                        project.clone(),
 620                        lsp_adapter_delegate,
 621                        window,
 622                        cx,
 623                    );
 624                    editor.insert_default_prompt(window, cx);
 625                    editor
 626                });
 627                ActiveView::prompt_editor(
 628                    context_editor,
 629                    history_store.clone(),
 630                    language_registry.clone(),
 631                    window,
 632                    cx,
 633                )
 634            }
 635        };
 636
 637        AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 638
 639        let weak_panel = weak_self.clone();
 640
 641        window.defer(cx, move |window, cx| {
 642            let panel = weak_panel.clone();
 643            let assistant_navigation_menu =
 644                ContextMenu::build_persistent(window, cx, move |mut menu, _window, cx| {
 645                    if let Some(panel) = panel.upgrade() {
 646                        menu = Self::populate_recently_opened_menu_section(menu, panel, cx);
 647                    }
 648                    menu.action("View All", Box::new(OpenHistory))
 649                        .end_slot_action(DeleteRecentlyOpenThread.boxed_clone())
 650                        .fixed_width(px(320.).into())
 651                        .keep_open_on_confirm(false)
 652                        .key_context("NavigationMenu")
 653                });
 654            weak_panel
 655                .update(cx, |panel, cx| {
 656                    cx.subscribe_in(
 657                        &assistant_navigation_menu,
 658                        window,
 659                        |_, menu, _: &DismissEvent, window, cx| {
 660                            menu.update(cx, |menu, _| {
 661                                menu.clear_selected();
 662                            });
 663                            cx.focus_self(window);
 664                        },
 665                    )
 666                    .detach();
 667                    panel.assistant_navigation_menu = Some(assistant_navigation_menu);
 668                })
 669                .ok();
 670        });
 671
 672        let _default_model_subscription = cx.subscribe(
 673            &LanguageModelRegistry::global(cx),
 674            |this, _, event: &language_model::Event, cx| match event {
 675                language_model::Event::DefaultModelChanged => match &this.active_view {
 676                    ActiveView::Thread { thread, .. } => {
 677                        thread
 678                            .read(cx)
 679                            .thread()
 680                            .clone()
 681                            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx));
 682                    }
 683                    ActiveView::ExternalAgentThread { .. }
 684                    | ActiveView::TextThread { .. }
 685                    | ActiveView::History
 686                    | ActiveView::Configuration => {}
 687                },
 688                _ => {}
 689            },
 690        );
 691
 692        let onboarding = cx.new(|cx| {
 693            AgentPanelOnboarding::new(
 694                user_store.clone(),
 695                client,
 696                |_window, cx| {
 697                    OnboardingUpsell::set_dismissed(true, cx);
 698                },
 699                cx,
 700            )
 701        });
 702
 703        Self {
 704            active_view,
 705            workspace,
 706            user_store,
 707            project: project.clone(),
 708            fs: fs.clone(),
 709            language_registry,
 710            thread_store: thread_store.clone(),
 711            _default_model_subscription,
 712            context_store,
 713            prompt_store,
 714            configuration: None,
 715            configuration_subscription: None,
 716            local_timezone: UtcOffset::from_whole_seconds(
 717                chrono::Local::now().offset().local_minus_utc(),
 718            )
 719            .unwrap(),
 720            inline_assist_context_store,
 721            previous_view: None,
 722            acp_message_history: Default::default(),
 723            history_store: history_store.clone(),
 724            history: cx.new(|cx| ThreadHistory::new(weak_self, history_store, window, cx)),
 725            hovered_recent_history_item: None,
 726            new_thread_menu_handle: PopoverMenuHandle::default(),
 727            agent_panel_menu_handle: PopoverMenuHandle::default(),
 728            assistant_navigation_menu_handle: PopoverMenuHandle::default(),
 729            assistant_navigation_menu: None,
 730            width: None,
 731            height: None,
 732            zoomed: false,
 733            pending_serialization: None,
 734            onboarding,
 735        }
 736    }
 737
 738    pub fn toggle_focus(
 739        workspace: &mut Workspace,
 740        _: &ToggleFocus,
 741        window: &mut Window,
 742        cx: &mut Context<Workspace>,
 743    ) {
 744        if workspace
 745            .panel::<Self>(cx)
 746            .is_some_and(|panel| panel.read(cx).enabled(cx))
 747        {
 748            workspace.toggle_panel_focus::<Self>(window, cx);
 749        }
 750    }
 751
 752    pub(crate) fn local_timezone(&self) -> UtcOffset {
 753        self.local_timezone
 754    }
 755
 756    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 757        &self.prompt_store
 758    }
 759
 760    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 761        &self.inline_assist_context_store
 762    }
 763
 764    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 765        &self.thread_store
 766    }
 767
 768    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 769        &self.context_store
 770    }
 771
 772    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 773        match &self.active_view {
 774            ActiveView::Thread { thread, .. } => {
 775                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 776            }
 777            ActiveView::ExternalAgentThread { thread_view, .. } => {
 778                thread_view.update(cx, |thread_element, cx| thread_element.cancel(cx));
 779            }
 780            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
 781        }
 782    }
 783
 784    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 785        match &self.active_view {
 786            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 787            ActiveView::ExternalAgentThread { .. }
 788            | ActiveView::TextThread { .. }
 789            | ActiveView::History
 790            | ActiveView::Configuration => None,
 791        }
 792    }
 793
 794    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 795        // Preserve chat box text when using creating new thread
 796        let preserved_text = self
 797            .active_message_editor()
 798            .map(|editor| editor.read(cx).get_text(cx).trim().to_string());
 799
 800        let thread = self
 801            .thread_store
 802            .update(cx, |this, cx| this.create_thread(cx));
 803
 804        let context_store = cx.new(|_cx| {
 805            ContextStore::new(
 806                self.project.downgrade(),
 807                Some(self.thread_store.downgrade()),
 808            )
 809        });
 810
 811        if let Some(other_thread_id) = action.from_thread_id.clone() {
 812            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 813                this.open_thread(&other_thread_id, window, cx)
 814            });
 815
 816            cx.spawn({
 817                let context_store = context_store.clone();
 818
 819                async move |_panel, cx| {
 820                    let other_thread = other_thread_task.await?;
 821
 822                    context_store.update(cx, |this, cx| {
 823                        this.add_thread(other_thread, false, cx);
 824                    })?;
 825                    anyhow::Ok(())
 826                }
 827            })
 828            .detach_and_log_err(cx);
 829        }
 830
 831        let active_thread = cx.new(|cx| {
 832            ActiveThread::new(
 833                thread.clone(),
 834                self.thread_store.clone(),
 835                self.context_store.clone(),
 836                context_store.clone(),
 837                self.language_registry.clone(),
 838                self.workspace.clone(),
 839                window,
 840                cx,
 841            )
 842        });
 843
 844        let message_editor = cx.new(|cx| {
 845            MessageEditor::new(
 846                self.fs.clone(),
 847                self.workspace.clone(),
 848                self.user_store.clone(),
 849                context_store.clone(),
 850                self.prompt_store.clone(),
 851                self.thread_store.downgrade(),
 852                self.context_store.downgrade(),
 853                thread.clone(),
 854                window,
 855                cx,
 856            )
 857        });
 858
 859        if let Some(text) = preserved_text {
 860            message_editor.update(cx, |editor, cx| {
 861                editor.set_text(text, window, cx);
 862            });
 863        }
 864
 865        message_editor.focus_handle(cx).focus(window);
 866
 867        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 868        self.set_active_view(thread_view, window, cx);
 869
 870        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
 871    }
 872
 873    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 874        let context = self
 875            .context_store
 876            .update(cx, |context_store, cx| context_store.create(cx));
 877        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 878            .log_err()
 879            .flatten();
 880
 881        let context_editor = cx.new(|cx| {
 882            let mut editor = TextThreadEditor::for_context(
 883                context,
 884                self.fs.clone(),
 885                self.workspace.clone(),
 886                self.project.clone(),
 887                lsp_adapter_delegate,
 888                window,
 889                cx,
 890            );
 891            editor.insert_default_prompt(window, cx);
 892            editor
 893        });
 894
 895        self.set_active_view(
 896            ActiveView::prompt_editor(
 897                context_editor.clone(),
 898                self.history_store.clone(),
 899                self.language_registry.clone(),
 900                window,
 901                cx,
 902            ),
 903            window,
 904            cx,
 905        );
 906        context_editor.focus_handle(cx).focus(window);
 907    }
 908
 909    fn new_external_thread(
 910        &mut self,
 911        agent_choice: Option<crate::ExternalAgent>,
 912        window: &mut Window,
 913        cx: &mut Context<Self>,
 914    ) {
 915        let workspace = self.workspace.clone();
 916        let project = self.project.clone();
 917        let message_history = self.acp_message_history.clone();
 918
 919        const LAST_USED_EXTERNAL_AGENT_KEY: &str = "agent_panel__last_used_external_agent";
 920
 921        #[derive(Default, Serialize, Deserialize)]
 922        struct LastUsedExternalAgent {
 923            agent: crate::ExternalAgent,
 924        }
 925
 926        cx.spawn_in(window, async move |this, cx| {
 927            let server: Rc<dyn AgentServer> = match agent_choice {
 928                Some(agent) => {
 929                    cx.background_spawn(async move {
 930                        if let Some(serialized) =
 931                            serde_json::to_string(&LastUsedExternalAgent { agent }).log_err()
 932                        {
 933                            KEY_VALUE_STORE
 934                                .write_kvp(LAST_USED_EXTERNAL_AGENT_KEY.to_string(), serialized)
 935                                .await
 936                                .log_err();
 937                        }
 938                    })
 939                    .detach();
 940
 941                    agent.server()
 942                }
 943                None => cx
 944                    .background_spawn(async move {
 945                        KEY_VALUE_STORE.read_kvp(LAST_USED_EXTERNAL_AGENT_KEY)
 946                    })
 947                    .await
 948                    .log_err()
 949                    .flatten()
 950                    .and_then(|value| {
 951                        serde_json::from_str::<LastUsedExternalAgent>(&value).log_err()
 952                    })
 953                    .unwrap_or_default()
 954                    .agent
 955                    .server(),
 956            };
 957
 958            this.update_in(cx, |this, window, cx| {
 959                let thread_view = cx.new(|cx| {
 960                    crate::acp::AcpThreadView::new(
 961                        server,
 962                        workspace.clone(),
 963                        project,
 964                        message_history,
 965                        MIN_EDITOR_LINES,
 966                        Some(MAX_EDITOR_LINES),
 967                        window,
 968                        cx,
 969                    )
 970                });
 971
 972                this.set_active_view(
 973                    ActiveView::ExternalAgentThread {
 974                        thread_view: thread_view.clone(),
 975                    },
 976                    window,
 977                    cx,
 978                );
 979            })
 980        })
 981        .detach_and_log_err(cx);
 982    }
 983
 984    fn deploy_rules_library(
 985        &mut self,
 986        action: &OpenRulesLibrary,
 987        _window: &mut Window,
 988        cx: &mut Context<Self>,
 989    ) {
 990        open_rules_library(
 991            self.language_registry.clone(),
 992            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
 993            Rc::new(|| {
 994                Rc::new(SlashCommandCompletionProvider::new(
 995                    Arc::new(SlashCommandWorkingSet::default()),
 996                    None,
 997                    None,
 998                ))
 999            }),
1000            action
1001                .prompt_to_select
1002                .map(|uuid| UserPromptId(uuid).into()),
1003            cx,
1004        )
1005        .detach_and_log_err(cx);
1006    }
1007
1008    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1009        if matches!(self.active_view, ActiveView::History) {
1010            if let Some(previous_view) = self.previous_view.take() {
1011                self.set_active_view(previous_view, window, cx);
1012            }
1013        } else {
1014            self.thread_store
1015                .update(cx, |thread_store, cx| thread_store.reload(cx))
1016                .detach_and_log_err(cx);
1017            self.set_active_view(ActiveView::History, window, cx);
1018        }
1019        cx.notify();
1020    }
1021
1022    pub(crate) fn open_saved_prompt_editor(
1023        &mut self,
1024        path: Arc<Path>,
1025        window: &mut Window,
1026        cx: &mut Context<Self>,
1027    ) -> Task<Result<()>> {
1028        let context = self
1029            .context_store
1030            .update(cx, |store, cx| store.open_local_context(path, cx));
1031        cx.spawn_in(window, async move |this, cx| {
1032            let context = context.await?;
1033            this.update_in(cx, |this, window, cx| {
1034                this.open_prompt_editor(context, window, cx);
1035            })
1036        })
1037    }
1038
1039    pub(crate) fn open_prompt_editor(
1040        &mut self,
1041        context: Entity<AssistantContext>,
1042        window: &mut Window,
1043        cx: &mut Context<Self>,
1044    ) {
1045        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
1046            .log_err()
1047            .flatten();
1048        let editor = cx.new(|cx| {
1049            TextThreadEditor::for_context(
1050                context,
1051                self.fs.clone(),
1052                self.workspace.clone(),
1053                self.project.clone(),
1054                lsp_adapter_delegate,
1055                window,
1056                cx,
1057            )
1058        });
1059        self.set_active_view(
1060            ActiveView::prompt_editor(
1061                editor.clone(),
1062                self.history_store.clone(),
1063                self.language_registry.clone(),
1064                window,
1065                cx,
1066            ),
1067            window,
1068            cx,
1069        );
1070    }
1071
1072    pub(crate) fn open_thread_by_id(
1073        &mut self,
1074        thread_id: &ThreadId,
1075        window: &mut Window,
1076        cx: &mut Context<Self>,
1077    ) -> Task<Result<()>> {
1078        let open_thread_task = self
1079            .thread_store
1080            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
1081        cx.spawn_in(window, async move |this, cx| {
1082            let thread = open_thread_task.await?;
1083            this.update_in(cx, |this, window, cx| {
1084                this.open_thread(thread, window, cx);
1085                anyhow::Ok(())
1086            })??;
1087            Ok(())
1088        })
1089    }
1090
1091    pub(crate) fn open_thread(
1092        &mut self,
1093        thread: Entity<Thread>,
1094        window: &mut Window,
1095        cx: &mut Context<Self>,
1096    ) {
1097        let context_store = cx.new(|_cx| {
1098            ContextStore::new(
1099                self.project.downgrade(),
1100                Some(self.thread_store.downgrade()),
1101            )
1102        });
1103
1104        let active_thread = cx.new(|cx| {
1105            ActiveThread::new(
1106                thread.clone(),
1107                self.thread_store.clone(),
1108                self.context_store.clone(),
1109                context_store.clone(),
1110                self.language_registry.clone(),
1111                self.workspace.clone(),
1112                window,
1113                cx,
1114            )
1115        });
1116
1117        let message_editor = cx.new(|cx| {
1118            MessageEditor::new(
1119                self.fs.clone(),
1120                self.workspace.clone(),
1121                self.user_store.clone(),
1122                context_store,
1123                self.prompt_store.clone(),
1124                self.thread_store.downgrade(),
1125                self.context_store.downgrade(),
1126                thread.clone(),
1127                window,
1128                cx,
1129            )
1130        });
1131        message_editor.focus_handle(cx).focus(window);
1132
1133        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1134        self.set_active_view(thread_view, window, cx);
1135        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
1136    }
1137
1138    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1139        match self.active_view {
1140            ActiveView::Configuration | ActiveView::History => {
1141                if let Some(previous_view) = self.previous_view.take() {
1142                    self.active_view = previous_view;
1143
1144                    match &self.active_view {
1145                        ActiveView::Thread { message_editor, .. } => {
1146                            message_editor.focus_handle(cx).focus(window);
1147                        }
1148                        ActiveView::ExternalAgentThread { thread_view } => {
1149                            thread_view.focus_handle(cx).focus(window);
1150                        }
1151                        ActiveView::TextThread { context_editor, .. } => {
1152                            context_editor.focus_handle(cx).focus(window);
1153                        }
1154                        ActiveView::History | ActiveView::Configuration => {}
1155                    }
1156                }
1157                cx.notify();
1158            }
1159            _ => {}
1160        }
1161    }
1162
1163    pub fn toggle_navigation_menu(
1164        &mut self,
1165        _: &ToggleNavigationMenu,
1166        window: &mut Window,
1167        cx: &mut Context<Self>,
1168    ) {
1169        self.assistant_navigation_menu_handle.toggle(window, cx);
1170    }
1171
1172    pub fn toggle_options_menu(
1173        &mut self,
1174        _: &ToggleOptionsMenu,
1175        window: &mut Window,
1176        cx: &mut Context<Self>,
1177    ) {
1178        self.agent_panel_menu_handle.toggle(window, cx);
1179    }
1180
1181    pub fn increase_font_size(
1182        &mut self,
1183        action: &IncreaseBufferFontSize,
1184        _: &mut Window,
1185        cx: &mut Context<Self>,
1186    ) {
1187        self.handle_font_size_action(action.persist, px(1.0), cx);
1188    }
1189
1190    pub fn decrease_font_size(
1191        &mut self,
1192        action: &DecreaseBufferFontSize,
1193        _: &mut Window,
1194        cx: &mut Context<Self>,
1195    ) {
1196        self.handle_font_size_action(action.persist, px(-1.0), cx);
1197    }
1198
1199    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1200        match self.active_view.which_font_size_used() {
1201            WhichFontSize::AgentFont => {
1202                if persist {
1203                    update_settings_file::<ThemeSettings>(
1204                        self.fs.clone(),
1205                        cx,
1206                        move |settings, cx| {
1207                            let agent_font_size =
1208                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1209                            let _ = settings
1210                                .agent_font_size
1211                                .insert(theme::clamp_font_size(agent_font_size).0);
1212                        },
1213                    );
1214                } else {
1215                    theme::adjust_agent_font_size(cx, |size| {
1216                        *size += delta;
1217                    });
1218                }
1219            }
1220            WhichFontSize::BufferFont => {
1221                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1222                // default handler that changes that font size.
1223                cx.propagate();
1224            }
1225            WhichFontSize::None => {}
1226        }
1227    }
1228
1229    pub fn reset_font_size(
1230        &mut self,
1231        action: &ResetBufferFontSize,
1232        _: &mut Window,
1233        cx: &mut Context<Self>,
1234    ) {
1235        if action.persist {
1236            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1237                settings.agent_font_size = None;
1238            });
1239        } else {
1240            theme::reset_agent_font_size(cx);
1241        }
1242    }
1243
1244    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1245        if self.zoomed {
1246            cx.emit(PanelEvent::ZoomOut);
1247        } else {
1248            if !self.focus_handle(cx).contains_focused(window, cx) {
1249                cx.focus_self(window);
1250            }
1251            cx.emit(PanelEvent::ZoomIn);
1252        }
1253    }
1254
1255    pub fn open_agent_diff(
1256        &mut self,
1257        _: &OpenAgentDiff,
1258        window: &mut Window,
1259        cx: &mut Context<Self>,
1260    ) {
1261        match &self.active_view {
1262            ActiveView::Thread { thread, .. } => {
1263                let thread = thread.read(cx).thread().clone();
1264                self.workspace
1265                    .update(cx, |workspace, cx| {
1266                        AgentDiffPane::deploy_in_workspace(
1267                            AgentDiffThread::Native(thread),
1268                            workspace,
1269                            window,
1270                            cx,
1271                        )
1272                    })
1273                    .log_err();
1274            }
1275            ActiveView::ExternalAgentThread { .. }
1276            | ActiveView::TextThread { .. }
1277            | ActiveView::History
1278            | ActiveView::Configuration => {}
1279        }
1280    }
1281
1282    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1283        let context_server_store = self.project.read(cx).context_server_store();
1284        let tools = self.thread_store.read(cx).tools();
1285        let fs = self.fs.clone();
1286
1287        self.set_active_view(ActiveView::Configuration, window, cx);
1288        self.configuration = Some(cx.new(|cx| {
1289            AgentConfiguration::new(
1290                fs,
1291                context_server_store,
1292                tools,
1293                self.language_registry.clone(),
1294                self.workspace.clone(),
1295                window,
1296                cx,
1297            )
1298        }));
1299
1300        if let Some(configuration) = self.configuration.as_ref() {
1301            self.configuration_subscription = Some(cx.subscribe_in(
1302                configuration,
1303                window,
1304                Self::handle_agent_configuration_event,
1305            ));
1306
1307            configuration.focus_handle(cx).focus(window);
1308        }
1309    }
1310
1311    pub(crate) fn open_active_thread_as_markdown(
1312        &mut self,
1313        _: &OpenActiveThreadAsMarkdown,
1314        window: &mut Window,
1315        cx: &mut Context<Self>,
1316    ) {
1317        let Some(workspace) = self.workspace.upgrade() else {
1318            return;
1319        };
1320
1321        match &self.active_view {
1322            ActiveView::Thread { thread, .. } => {
1323                active_thread::open_active_thread_as_markdown(
1324                    thread.read(cx).thread().clone(),
1325                    workspace,
1326                    window,
1327                    cx,
1328                )
1329                .detach_and_log_err(cx);
1330            }
1331            ActiveView::ExternalAgentThread { thread_view } => {
1332                thread_view
1333                    .update(cx, |thread_view, cx| {
1334                        thread_view.open_thread_as_markdown(workspace, window, cx)
1335                    })
1336                    .detach_and_log_err(cx);
1337            }
1338            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1339        }
1340    }
1341
1342    fn handle_agent_configuration_event(
1343        &mut self,
1344        _entity: &Entity<AgentConfiguration>,
1345        event: &AssistantConfigurationEvent,
1346        window: &mut Window,
1347        cx: &mut Context<Self>,
1348    ) {
1349        match event {
1350            AssistantConfigurationEvent::NewThread(provider) => {
1351                if LanguageModelRegistry::read_global(cx)
1352                    .default_model()
1353                    .map_or(true, |model| model.provider.id() != provider.id())
1354                {
1355                    if let Some(model) = provider.default_model(cx) {
1356                        update_settings_file::<AgentSettings>(
1357                            self.fs.clone(),
1358                            cx,
1359                            move |settings, _| settings.set_model(model),
1360                        );
1361                    }
1362                }
1363
1364                self.new_thread(&NewThread::default(), window, cx);
1365                if let Some((thread, model)) =
1366                    self.active_thread(cx).zip(provider.default_model(cx))
1367                {
1368                    thread.update(cx, |thread, cx| {
1369                        thread.set_configured_model(
1370                            Some(ConfiguredModel {
1371                                provider: provider.clone(),
1372                                model,
1373                            }),
1374                            cx,
1375                        );
1376                    });
1377                }
1378            }
1379        }
1380    }
1381
1382    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<Thread>> {
1383        match &self.active_view {
1384            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1385            _ => None,
1386        }
1387    }
1388
1389    pub(crate) fn delete_thread(
1390        &mut self,
1391        thread_id: &ThreadId,
1392        cx: &mut Context<Self>,
1393    ) -> Task<Result<()>> {
1394        self.thread_store
1395            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1396    }
1397
1398    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1399        let ActiveView::Thread { thread, .. } = &self.active_view else {
1400            return;
1401        };
1402
1403        let thread_state = thread.read(cx).thread().read(cx);
1404        if !thread_state.tool_use_limit_reached() {
1405            return;
1406        }
1407
1408        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1409        if let Some(model) = model {
1410            thread.update(cx, |active_thread, cx| {
1411                active_thread.thread().update(cx, |thread, cx| {
1412                    thread.insert_invisible_continue_message(cx);
1413                    thread.advance_prompt_id();
1414                    thread.send_to_model(
1415                        model,
1416                        CompletionIntent::UserPrompt,
1417                        Some(window.window_handle()),
1418                        cx,
1419                    );
1420                });
1421            });
1422        } else {
1423            log::warn!("No configured model available for continuation");
1424        }
1425    }
1426
1427    fn toggle_burn_mode(
1428        &mut self,
1429        _: &ToggleBurnMode,
1430        _window: &mut Window,
1431        cx: &mut Context<Self>,
1432    ) {
1433        let ActiveView::Thread { thread, .. } = &self.active_view else {
1434            return;
1435        };
1436
1437        thread.update(cx, |active_thread, cx| {
1438            active_thread.thread().update(cx, |thread, _cx| {
1439                let current_mode = thread.completion_mode();
1440
1441                thread.set_completion_mode(match current_mode {
1442                    CompletionMode::Burn => CompletionMode::Normal,
1443                    CompletionMode::Normal => CompletionMode::Burn,
1444                });
1445            });
1446        });
1447    }
1448
1449    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1450        match &self.active_view {
1451            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1452            _ => None,
1453        }
1454    }
1455
1456    pub(crate) fn delete_context(
1457        &mut self,
1458        path: Arc<Path>,
1459        cx: &mut Context<Self>,
1460    ) -> Task<Result<()>> {
1461        self.context_store
1462            .update(cx, |this, cx| this.delete_local_context(path, cx))
1463    }
1464
1465    fn set_active_view(
1466        &mut self,
1467        new_view: ActiveView,
1468        window: &mut Window,
1469        cx: &mut Context<Self>,
1470    ) {
1471        let current_is_history = matches!(self.active_view, ActiveView::History);
1472        let new_is_history = matches!(new_view, ActiveView::History);
1473
1474        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1475        let new_is_config = matches!(new_view, ActiveView::Configuration);
1476
1477        let current_is_special = current_is_history || current_is_config;
1478        let new_is_special = new_is_history || new_is_config;
1479
1480        match &self.active_view {
1481            ActiveView::Thread { thread, .. } => {
1482                let thread = thread.read(cx);
1483                if thread.is_empty() {
1484                    let id = thread.thread().read(cx).id().clone();
1485                    self.history_store.update(cx, |store, cx| {
1486                        store.remove_recently_opened_thread(id, cx);
1487                    });
1488                }
1489            }
1490            _ => {}
1491        }
1492
1493        match &new_view {
1494            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1495                let id = thread.read(cx).thread().read(cx).id().clone();
1496                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1497            }),
1498            ActiveView::TextThread { context_editor, .. } => {
1499                self.history_store.update(cx, |store, cx| {
1500                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1501                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1502                    }
1503                })
1504            }
1505            ActiveView::ExternalAgentThread { .. } => {}
1506            ActiveView::History | ActiveView::Configuration => {}
1507        }
1508
1509        if current_is_special && !new_is_special {
1510            self.active_view = new_view;
1511        } else if !current_is_special && new_is_special {
1512            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1513        } else {
1514            if !new_is_special {
1515                self.previous_view = None;
1516            }
1517            self.active_view = new_view;
1518        }
1519
1520        self.acp_message_history.borrow_mut().reset_position();
1521
1522        self.focus_handle(cx).focus(window);
1523    }
1524
1525    fn populate_recently_opened_menu_section(
1526        mut menu: ContextMenu,
1527        panel: Entity<Self>,
1528        cx: &mut Context<ContextMenu>,
1529    ) -> ContextMenu {
1530        let entries = panel
1531            .read(cx)
1532            .history_store
1533            .read(cx)
1534            .recently_opened_entries(cx);
1535
1536        if entries.is_empty() {
1537            return menu;
1538        }
1539
1540        menu = menu.header("Recently Opened");
1541
1542        for entry in entries {
1543            let title = entry.title().clone();
1544            let id = entry.id();
1545
1546            menu = menu.entry_with_end_slot_on_hover(
1547                title,
1548                None,
1549                {
1550                    let panel = panel.downgrade();
1551                    let id = id.clone();
1552                    move |window, cx| {
1553                        let id = id.clone();
1554                        panel
1555                            .update(cx, move |this, cx| match id {
1556                                HistoryEntryId::Thread(id) => this
1557                                    .open_thread_by_id(&id, window, cx)
1558                                    .detach_and_log_err(cx),
1559                                HistoryEntryId::Context(path) => this
1560                                    .open_saved_prompt_editor(path.clone(), window, cx)
1561                                    .detach_and_log_err(cx),
1562                            })
1563                            .ok();
1564                    }
1565                },
1566                IconName::Close,
1567                "Close Entry".into(),
1568                {
1569                    let panel = panel.downgrade();
1570                    let id = id.clone();
1571                    move |_window, cx| {
1572                        panel
1573                            .update(cx, |this, cx| {
1574                                this.history_store.update(cx, |history_store, cx| {
1575                                    history_store.remove_recently_opened_entry(&id, cx);
1576                                });
1577                            })
1578                            .ok();
1579                    }
1580                },
1581            );
1582        }
1583
1584        menu = menu.separator();
1585
1586        menu
1587    }
1588}
1589
1590impl Focusable for AgentPanel {
1591    fn focus_handle(&self, cx: &App) -> FocusHandle {
1592        match &self.active_view {
1593            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1594            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1595            ActiveView::History => self.history.focus_handle(cx),
1596            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1597            ActiveView::Configuration => {
1598                if let Some(configuration) = self.configuration.as_ref() {
1599                    configuration.focus_handle(cx)
1600                } else {
1601                    cx.focus_handle()
1602                }
1603            }
1604        }
1605    }
1606}
1607
1608fn agent_panel_dock_position(cx: &App) -> DockPosition {
1609    match AgentSettings::get_global(cx).dock {
1610        AgentDockPosition::Left => DockPosition::Left,
1611        AgentDockPosition::Bottom => DockPosition::Bottom,
1612        AgentDockPosition::Right => DockPosition::Right,
1613    }
1614}
1615
1616impl EventEmitter<PanelEvent> for AgentPanel {}
1617
1618impl Panel for AgentPanel {
1619    fn persistent_name() -> &'static str {
1620        "AgentPanel"
1621    }
1622
1623    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1624        agent_panel_dock_position(cx)
1625    }
1626
1627    fn position_is_valid(&self, position: DockPosition) -> bool {
1628        position != DockPosition::Bottom
1629    }
1630
1631    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1632        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1633            let dock = match position {
1634                DockPosition::Left => AgentDockPosition::Left,
1635                DockPosition::Bottom => AgentDockPosition::Bottom,
1636                DockPosition::Right => AgentDockPosition::Right,
1637            };
1638            settings.set_dock(dock);
1639        });
1640    }
1641
1642    fn size(&self, window: &Window, cx: &App) -> Pixels {
1643        let settings = AgentSettings::get_global(cx);
1644        match self.position(window, cx) {
1645            DockPosition::Left | DockPosition::Right => {
1646                self.width.unwrap_or(settings.default_width)
1647            }
1648            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1649        }
1650    }
1651
1652    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1653        match self.position(window, cx) {
1654            DockPosition::Left | DockPosition::Right => self.width = size,
1655            DockPosition::Bottom => self.height = size,
1656        }
1657        self.serialize(cx);
1658        cx.notify();
1659    }
1660
1661    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1662
1663    fn remote_id() -> Option<proto::PanelId> {
1664        Some(proto::PanelId::AssistantPanel)
1665    }
1666
1667    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1668        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1669    }
1670
1671    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1672        Some("Agent Panel")
1673    }
1674
1675    fn toggle_action(&self) -> Box<dyn Action> {
1676        Box::new(ToggleFocus)
1677    }
1678
1679    fn activation_priority(&self) -> u32 {
1680        3
1681    }
1682
1683    fn enabled(&self, cx: &App) -> bool {
1684        AgentSettings::get_global(cx).enabled
1685    }
1686
1687    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1688        self.zoomed
1689    }
1690
1691    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1692        self.zoomed = zoomed;
1693        cx.notify();
1694    }
1695}
1696
1697impl AgentPanel {
1698    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1699        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1700
1701        let content = match &self.active_view {
1702            ActiveView::Thread {
1703                thread: active_thread,
1704                change_title_editor,
1705                ..
1706            } => {
1707                let state = {
1708                    let active_thread = active_thread.read(cx);
1709                    if active_thread.is_empty() {
1710                        &ThreadSummary::Pending
1711                    } else {
1712                        active_thread.summary(cx)
1713                    }
1714                };
1715
1716                match state {
1717                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1718                        .truncate()
1719                        .into_any_element(),
1720                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1721                        .truncate()
1722                        .into_any_element(),
1723                    ThreadSummary::Ready(_) => div()
1724                        .w_full()
1725                        .child(change_title_editor.clone())
1726                        .into_any_element(),
1727                    ThreadSummary::Error => h_flex()
1728                        .w_full()
1729                        .child(change_title_editor.clone())
1730                        .child(
1731                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1732                                .on_click({
1733                                    let active_thread = active_thread.clone();
1734                                    move |_, _window, cx| {
1735                                        active_thread.update(cx, |thread, cx| {
1736                                            thread.regenerate_summary(cx);
1737                                        });
1738                                    }
1739                                })
1740                                .tooltip(move |_window, cx| {
1741                                    cx.new(|_| {
1742                                        Tooltip::new("Failed to generate title")
1743                                            .meta("Click to try again")
1744                                    })
1745                                    .into()
1746                                }),
1747                        )
1748                        .into_any_element(),
1749                }
1750            }
1751            ActiveView::ExternalAgentThread { thread_view } => {
1752                Label::new(thread_view.read(cx).title(cx))
1753                    .truncate()
1754                    .into_any_element()
1755            }
1756            ActiveView::TextThread {
1757                title_editor,
1758                context_editor,
1759                ..
1760            } => {
1761                let summary = context_editor.read(cx).context().read(cx).summary();
1762
1763                match summary {
1764                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1765                        .truncate()
1766                        .into_any_element(),
1767                    ContextSummary::Content(summary) => {
1768                        if summary.done {
1769                            div()
1770                                .w_full()
1771                                .child(title_editor.clone())
1772                                .into_any_element()
1773                        } else {
1774                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
1775                                .truncate()
1776                                .into_any_element()
1777                        }
1778                    }
1779                    ContextSummary::Error => h_flex()
1780                        .w_full()
1781                        .child(title_editor.clone())
1782                        .child(
1783                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1784                                .on_click({
1785                                    let context_editor = context_editor.clone();
1786                                    move |_, _window, cx| {
1787                                        context_editor.update(cx, |context_editor, cx| {
1788                                            context_editor.regenerate_summary(cx);
1789                                        });
1790                                    }
1791                                })
1792                                .tooltip(move |_window, cx| {
1793                                    cx.new(|_| {
1794                                        Tooltip::new("Failed to generate title")
1795                                            .meta("Click to try again")
1796                                    })
1797                                    .into()
1798                                }),
1799                        )
1800                        .into_any_element(),
1801                }
1802            }
1803            ActiveView::History => Label::new("History").truncate().into_any_element(),
1804            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
1805        };
1806
1807        h_flex()
1808            .key_context("TitleEditor")
1809            .id("TitleEditor")
1810            .flex_grow()
1811            .w_full()
1812            .max_w_full()
1813            .overflow_x_scroll()
1814            .child(content)
1815            .into_any()
1816    }
1817
1818    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1819        let user_store = self.user_store.read(cx);
1820        let usage = user_store.model_request_usage();
1821
1822        let account_url = zed_urls::account_url(cx);
1823
1824        let focus_handle = self.focus_handle(cx);
1825
1826        let go_back_button = div().child(
1827            IconButton::new("go-back", IconName::ArrowLeft)
1828                .icon_size(IconSize::Small)
1829                .on_click(cx.listener(|this, _, window, cx| {
1830                    this.go_back(&workspace::GoBack, window, cx);
1831                }))
1832                .tooltip({
1833                    let focus_handle = focus_handle.clone();
1834                    move |window, cx| {
1835                        Tooltip::for_action_in(
1836                            "Go Back",
1837                            &workspace::GoBack,
1838                            &focus_handle,
1839                            window,
1840                            cx,
1841                        )
1842                    }
1843                }),
1844        );
1845
1846        let recent_entries_menu = div().child(
1847            PopoverMenu::new("agent-nav-menu")
1848                .trigger_with_tooltip(
1849                    IconButton::new("agent-nav-menu", IconName::MenuAlt)
1850                        .icon_size(IconSize::Small)
1851                        .style(ui::ButtonStyle::Subtle),
1852                    {
1853                        let focus_handle = focus_handle.clone();
1854                        move |window, cx| {
1855                            Tooltip::for_action_in(
1856                                "Toggle Panel Menu",
1857                                &ToggleNavigationMenu,
1858                                &focus_handle,
1859                                window,
1860                                cx,
1861                            )
1862                        }
1863                    },
1864                )
1865                .anchor(Corner::TopLeft)
1866                .with_handle(self.assistant_navigation_menu_handle.clone())
1867                .menu({
1868                    let menu = self.assistant_navigation_menu.clone();
1869                    move |window, cx| {
1870                        if let Some(menu) = menu.as_ref() {
1871                            menu.update(cx, |_, cx| {
1872                                cx.defer_in(window, |menu, window, cx| {
1873                                    menu.rebuild(window, cx);
1874                                });
1875                            })
1876                        }
1877                        menu.clone()
1878                    }
1879                }),
1880        );
1881
1882        let zoom_in_label = if self.is_zoomed(window, cx) {
1883            "Zoom Out"
1884        } else {
1885            "Zoom In"
1886        };
1887
1888        let active_thread = match &self.active_view {
1889            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1890            ActiveView::ExternalAgentThread { .. }
1891            | ActiveView::TextThread { .. }
1892            | ActiveView::History
1893            | ActiveView::Configuration => None,
1894        };
1895
1896        let new_thread_menu = PopoverMenu::new("new_thread_menu")
1897            .trigger_with_tooltip(
1898                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
1899                Tooltip::text("New Thread…"),
1900            )
1901            .anchor(Corner::TopRight)
1902            .with_handle(self.new_thread_menu_handle.clone())
1903            .menu(move |window, cx| {
1904                let active_thread = active_thread.clone();
1905                Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
1906                    menu = menu
1907                        .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1908                            this.header("Zed Agent")
1909                        })
1910                        .item(
1911                            ContextMenuEntry::new("New Thread")
1912                                .icon(IconName::NewThread)
1913                                .icon_color(Color::Muted)
1914                                .handler(move |window, cx| {
1915                                    window.dispatch_action(NewThread::default().boxed_clone(), cx);
1916                                }),
1917                        )
1918                        .item(
1919                            ContextMenuEntry::new("New Text Thread")
1920                                .icon(IconName::NewTextThread)
1921                                .icon_color(Color::Muted)
1922                                .handler(move |window, cx| {
1923                                    window.dispatch_action(NewTextThread.boxed_clone(), cx);
1924                                }),
1925                        )
1926                        .when_some(active_thread, |this, active_thread| {
1927                            let thread = active_thread.read(cx);
1928
1929                            if !thread.is_empty() {
1930                                let thread_id = thread.id().clone();
1931                                this.item(
1932                                    ContextMenuEntry::new("New From Summary")
1933                                        .icon(IconName::NewFromSummary)
1934                                        .icon_color(Color::Muted)
1935                                        .handler(move |window, cx| {
1936                                            window.dispatch_action(
1937                                                Box::new(NewThread {
1938                                                    from_thread_id: Some(thread_id.clone()),
1939                                                }),
1940                                                cx,
1941                                            );
1942                                        }),
1943                                )
1944                            } else {
1945                                this
1946                            }
1947                        })
1948                        .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1949                            this.separator()
1950                                .header("External Agents")
1951                                .item(
1952                                    ContextMenuEntry::new("New Gemini Thread")
1953                                        .icon(IconName::AiGemini)
1954                                        .icon_color(Color::Muted)
1955                                        .handler(move |window, cx| {
1956                                            window.dispatch_action(
1957                                                NewExternalAgentThread {
1958                                                    agent: Some(crate::ExternalAgent::Gemini),
1959                                                }
1960                                                .boxed_clone(),
1961                                                cx,
1962                                            );
1963                                        }),
1964                                )
1965                                .item(
1966                                    ContextMenuEntry::new("New Claude Code Thread")
1967                                        .icon(IconName::AiClaude)
1968                                        .icon_color(Color::Muted)
1969                                        .handler(move |window, cx| {
1970                                            window.dispatch_action(
1971                                                NewExternalAgentThread {
1972                                                    agent: Some(crate::ExternalAgent::ClaudeCode),
1973                                                }
1974                                                .boxed_clone(),
1975                                                cx,
1976                                            );
1977                                        }),
1978                                )
1979                        });
1980                    menu
1981                }))
1982            });
1983
1984        let agent_panel_menu = PopoverMenu::new("agent-options-menu")
1985            .trigger_with_tooltip(
1986                IconButton::new("agent-options-menu", IconName::Ellipsis)
1987                    .icon_size(IconSize::Small),
1988                {
1989                    let focus_handle = focus_handle.clone();
1990                    move |window, cx| {
1991                        Tooltip::for_action_in(
1992                            "Toggle Agent Menu",
1993                            &ToggleOptionsMenu,
1994                            &focus_handle,
1995                            window,
1996                            cx,
1997                        )
1998                    }
1999                },
2000            )
2001            .anchor(Corner::TopRight)
2002            .with_handle(self.agent_panel_menu_handle.clone())
2003            .menu(move |window, cx| {
2004                Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2005                    if let Some(usage) = usage {
2006                        menu = menu
2007                            .header_with_link("Prompt Usage", "Manage", account_url.clone())
2008                            .custom_entry(
2009                                move |_window, cx| {
2010                                    let used_percentage = match usage.limit {
2011                                        UsageLimit::Limited(limit) => {
2012                                            Some((usage.amount as f32 / limit as f32) * 100.)
2013                                        }
2014                                        UsageLimit::Unlimited => None,
2015                                    };
2016
2017                                    h_flex()
2018                                        .flex_1()
2019                                        .gap_1p5()
2020                                        .children(used_percentage.map(|percent| {
2021                                            ProgressBar::new("usage", percent, 100., cx)
2022                                        }))
2023                                        .child(
2024                                            Label::new(match usage.limit {
2025                                                UsageLimit::Limited(limit) => {
2026                                                    format!("{} / {limit}", usage.amount)
2027                                                }
2028                                                UsageLimit::Unlimited => {
2029                                                    format!("{} / ∞", usage.amount)
2030                                                }
2031                                            })
2032                                            .size(LabelSize::Small)
2033                                            .color(Color::Muted),
2034                                        )
2035                                        .into_any_element()
2036                                },
2037                                move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2038                            )
2039                            .separator()
2040                    }
2041
2042                    menu = menu
2043                        .header("MCP Servers")
2044                        .action(
2045                            "View Server Extensions",
2046                            Box::new(zed_actions::Extensions {
2047                                category_filter: Some(
2048                                    zed_actions::ExtensionCategoryFilter::ContextServers,
2049                                ),
2050                                id: None,
2051                            }),
2052                        )
2053                        .action("Add Custom Server…", Box::new(AddContextServer))
2054                        .separator();
2055
2056                    menu = menu
2057                        .action("Rules…", Box::new(OpenRulesLibrary::default()))
2058                        .action("Settings", Box::new(OpenConfiguration))
2059                        .action(zoom_in_label, Box::new(ToggleZoom));
2060                    menu
2061                }))
2062            });
2063
2064        h_flex()
2065            .id("assistant-toolbar")
2066            .h(Tab::container_height(cx))
2067            .max_w_full()
2068            .flex_none()
2069            .justify_between()
2070            .gap_2()
2071            .bg(cx.theme().colors().tab_bar_background)
2072            .border_b_1()
2073            .border_color(cx.theme().colors().border)
2074            .child(
2075                h_flex()
2076                    .size_full()
2077                    .pl_1()
2078                    .gap_1()
2079                    .child(match &self.active_view {
2080                        ActiveView::History | ActiveView::Configuration => go_back_button,
2081                        _ => recent_entries_menu,
2082                    })
2083                    .child(self.render_title_view(window, cx)),
2084            )
2085            .child(
2086                h_flex()
2087                    .h_full()
2088                    .gap_2()
2089                    .children(self.render_token_count(cx))
2090                    .child(
2091                        h_flex()
2092                            .h_full()
2093                            .gap(DynamicSpacing::Base02.rems(cx))
2094                            .px(DynamicSpacing::Base08.rems(cx))
2095                            .border_l_1()
2096                            .border_color(cx.theme().colors().border)
2097                            .child(new_thread_menu)
2098                            .child(agent_panel_menu),
2099                    ),
2100            )
2101    }
2102
2103    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2104        match &self.active_view {
2105            ActiveView::Thread {
2106                thread,
2107                message_editor,
2108                ..
2109            } => {
2110                let active_thread = thread.read(cx);
2111                let message_editor = message_editor.read(cx);
2112
2113                let editor_empty = message_editor.is_editor_fully_empty(cx);
2114
2115                if active_thread.is_empty() && editor_empty {
2116                    return None;
2117                }
2118
2119                let thread = active_thread.thread().read(cx);
2120                let is_generating = thread.is_generating();
2121                let conversation_token_usage = thread.total_token_usage()?;
2122
2123                let (total_token_usage, is_estimating) =
2124                    if let Some((editing_message_id, unsent_tokens)) =
2125                        active_thread.editing_message_id()
2126                    {
2127                        let combined = thread
2128                            .token_usage_up_to_message(editing_message_id)
2129                            .add(unsent_tokens);
2130
2131                        (combined, unsent_tokens > 0)
2132                    } else {
2133                        let unsent_tokens =
2134                            message_editor.last_estimated_token_count().unwrap_or(0);
2135                        let combined = conversation_token_usage.add(unsent_tokens);
2136
2137                        (combined, unsent_tokens > 0)
2138                    };
2139
2140                let is_waiting_to_update_token_count =
2141                    message_editor.is_waiting_to_update_token_count();
2142
2143                if total_token_usage.total == 0 {
2144                    return None;
2145                }
2146
2147                let token_color = match total_token_usage.ratio() {
2148                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2149                    TokenUsageRatio::Normal => Color::Muted,
2150                    TokenUsageRatio::Warning => Color::Warning,
2151                    TokenUsageRatio::Exceeded => Color::Error,
2152                };
2153
2154                let token_count = h_flex()
2155                    .id("token-count")
2156                    .flex_shrink_0()
2157                    .gap_0p5()
2158                    .when(!is_generating && is_estimating, |parent| {
2159                        parent
2160                            .child(
2161                                h_flex()
2162                                    .mr_1()
2163                                    .size_2p5()
2164                                    .justify_center()
2165                                    .rounded_full()
2166                                    .bg(cx.theme().colors().text.opacity(0.1))
2167                                    .child(
2168                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2169                                    ),
2170                            )
2171                            .tooltip(move |window, cx| {
2172                                Tooltip::with_meta(
2173                                    "Estimated New Token Count",
2174                                    None,
2175                                    format!(
2176                                        "Current Conversation Tokens: {}",
2177                                        humanize_token_count(conversation_token_usage.total)
2178                                    ),
2179                                    window,
2180                                    cx,
2181                                )
2182                            })
2183                    })
2184                    .child(
2185                        Label::new(humanize_token_count(total_token_usage.total))
2186                            .size(LabelSize::Small)
2187                            .color(token_color)
2188                            .map(|label| {
2189                                if is_generating || is_waiting_to_update_token_count {
2190                                    label
2191                                        .with_animation(
2192                                            "used-tokens-label",
2193                                            Animation::new(Duration::from_secs(2))
2194                                                .repeat()
2195                                                .with_easing(pulsating_between(0.6, 1.)),
2196                                            |label, delta| label.alpha(delta),
2197                                        )
2198                                        .into_any()
2199                                } else {
2200                                    label.into_any_element()
2201                                }
2202                            }),
2203                    )
2204                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2205                    .child(
2206                        Label::new(humanize_token_count(total_token_usage.max))
2207                            .size(LabelSize::Small)
2208                            .color(Color::Muted),
2209                    )
2210                    .into_any();
2211
2212                Some(token_count)
2213            }
2214            ActiveView::TextThread { context_editor, .. } => {
2215                let element = render_remaining_tokens(context_editor, cx)?;
2216
2217                Some(element.into_any_element())
2218            }
2219            ActiveView::ExternalAgentThread { .. }
2220            | ActiveView::History
2221            | ActiveView::Configuration => {
2222                return None;
2223            }
2224        }
2225    }
2226
2227    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2228        if TrialEndUpsell::dismissed() {
2229            return false;
2230        }
2231
2232        match &self.active_view {
2233            ActiveView::Thread { thread, .. } => {
2234                if thread
2235                    .read(cx)
2236                    .thread()
2237                    .read(cx)
2238                    .configured_model()
2239                    .map_or(false, |model| {
2240                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2241                    })
2242                {
2243                    return false;
2244                }
2245            }
2246            ActiveView::TextThread { .. } => {
2247                if LanguageModelRegistry::global(cx)
2248                    .read(cx)
2249                    .default_model()
2250                    .map_or(false, |model| {
2251                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2252                    })
2253                {
2254                    return false;
2255                }
2256            }
2257            ActiveView::ExternalAgentThread { .. }
2258            | ActiveView::History
2259            | ActiveView::Configuration => return false,
2260        }
2261
2262        let plan = self.user_store.read(cx).current_plan();
2263        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2264
2265        matches!(plan, Some(Plan::Free)) && has_previous_trial
2266    }
2267
2268    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2269        if OnboardingUpsell::dismissed() {
2270            return false;
2271        }
2272
2273        match &self.active_view {
2274            ActiveView::Thread { thread, .. } => thread
2275                .read(cx)
2276                .thread()
2277                .read(cx)
2278                .configured_model()
2279                .map_or(true, |model| {
2280                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2281                }),
2282            ActiveView::TextThread { .. } => LanguageModelRegistry::global(cx)
2283                .read(cx)
2284                .default_model()
2285                .map_or(true, |model| {
2286                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2287                }),
2288            ActiveView::ExternalAgentThread { .. }
2289            | ActiveView::History
2290            | ActiveView::Configuration => false,
2291        }
2292    }
2293
2294    fn render_onboarding(
2295        &self,
2296        _window: &mut Window,
2297        cx: &mut Context<Self>,
2298    ) -> Option<impl IntoElement> {
2299        if !self.should_render_onboarding(cx) {
2300            return None;
2301        }
2302
2303        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2304        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2305
2306        Some(
2307            div()
2308                .size_full()
2309                .when(thread_view, |this| {
2310                    this.bg(cx.theme().colors().panel_background)
2311                })
2312                .when(text_thread_view, |this| {
2313                    this.bg(cx.theme().colors().editor_background)
2314                })
2315                .child(self.onboarding.clone()),
2316        )
2317    }
2318
2319    fn render_trial_end_upsell(
2320        &self,
2321        _window: &mut Window,
2322        cx: &mut Context<Self>,
2323    ) -> Option<impl IntoElement> {
2324        if !self.should_render_trial_end_upsell(cx) {
2325            return None;
2326        }
2327
2328        Some(EndTrialUpsell::new(Arc::new({
2329            let this = cx.entity();
2330            move |_, cx| {
2331                this.update(cx, |_this, cx| {
2332                    TrialEndUpsell::set_dismissed(true, cx);
2333                    cx.notify();
2334                });
2335            }
2336        })))
2337    }
2338
2339    fn render_empty_state_section_header(
2340        &self,
2341        label: impl Into<SharedString>,
2342        action_slot: Option<AnyElement>,
2343        cx: &mut Context<Self>,
2344    ) -> impl IntoElement {
2345        h_flex()
2346            .mt_2()
2347            .pl_1p5()
2348            .pb_1()
2349            .w_full()
2350            .justify_between()
2351            .border_b_1()
2352            .border_color(cx.theme().colors().border_variant)
2353            .child(
2354                Label::new(label.into())
2355                    .size(LabelSize::Small)
2356                    .color(Color::Muted),
2357            )
2358            .children(action_slot)
2359    }
2360
2361    fn render_thread_empty_state(
2362        &self,
2363        window: &mut Window,
2364        cx: &mut Context<Self>,
2365    ) -> impl IntoElement {
2366        let recent_history = self
2367            .history_store
2368            .update(cx, |this, cx| this.recent_entries(6, cx));
2369
2370        let model_registry = LanguageModelRegistry::read_global(cx);
2371
2372        let configuration_error =
2373            model_registry.configuration_error(model_registry.default_model(), cx);
2374
2375        let no_error = configuration_error.is_none();
2376        let focus_handle = self.focus_handle(cx);
2377
2378        v_flex()
2379            .size_full()
2380            .bg(cx.theme().colors().panel_background)
2381            .when(recent_history.is_empty(), |this| {
2382                this.child(
2383                    v_flex()
2384                        .size_full()
2385                        .mx_auto()
2386                        .justify_center()
2387                        .items_center()
2388                        .gap_1()
2389                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2390                        .when(no_error, |parent| {
2391                            parent
2392                                .child(h_flex().child(
2393                                    Label::new("Ask and build anything.").color(Color::Muted),
2394                                ))
2395                                .child(
2396                                    v_flex()
2397                                        .mt_2()
2398                                        .gap_1()
2399                                        .max_w_48()
2400                                        .child(
2401                                            Button::new("context", "Add Context")
2402                                                .label_size(LabelSize::Small)
2403                                                .icon(IconName::FileCode)
2404                                                .icon_position(IconPosition::Start)
2405                                                .icon_size(IconSize::Small)
2406                                                .icon_color(Color::Muted)
2407                                                .full_width()
2408                                                .key_binding(KeyBinding::for_action_in(
2409                                                    &ToggleContextPicker,
2410                                                    &focus_handle,
2411                                                    window,
2412                                                    cx,
2413                                                ))
2414                                                .on_click(|_event, window, cx| {
2415                                                    window.dispatch_action(
2416                                                        ToggleContextPicker.boxed_clone(),
2417                                                        cx,
2418                                                    )
2419                                                }),
2420                                        )
2421                                        .child(
2422                                            Button::new("mode", "Switch Model")
2423                                                .label_size(LabelSize::Small)
2424                                                .icon(IconName::DatabaseZap)
2425                                                .icon_position(IconPosition::Start)
2426                                                .icon_size(IconSize::Small)
2427                                                .icon_color(Color::Muted)
2428                                                .full_width()
2429                                                .key_binding(KeyBinding::for_action_in(
2430                                                    &ToggleModelSelector,
2431                                                    &focus_handle,
2432                                                    window,
2433                                                    cx,
2434                                                ))
2435                                                .on_click(|_event, window, cx| {
2436                                                    window.dispatch_action(
2437                                                        ToggleModelSelector.boxed_clone(),
2438                                                        cx,
2439                                                    )
2440                                                }),
2441                                        )
2442                                        .child(
2443                                            Button::new("settings", "View Settings")
2444                                                .label_size(LabelSize::Small)
2445                                                .icon(IconName::Settings)
2446                                                .icon_position(IconPosition::Start)
2447                                                .icon_size(IconSize::Small)
2448                                                .icon_color(Color::Muted)
2449                                                .full_width()
2450                                                .key_binding(KeyBinding::for_action_in(
2451                                                    &OpenConfiguration,
2452                                                    &focus_handle,
2453                                                    window,
2454                                                    cx,
2455                                                ))
2456                                                .on_click(|_event, window, cx| {
2457                                                    window.dispatch_action(
2458                                                        OpenConfiguration.boxed_clone(),
2459                                                        cx,
2460                                                    )
2461                                                }),
2462                                        ),
2463                                )
2464                        })
2465                        .when_some(configuration_error.as_ref(), |this, err| {
2466                            this.child(self.render_configuration_error(
2467                                err,
2468                                &focus_handle,
2469                                window,
2470                                cx,
2471                            ))
2472                        }),
2473                )
2474            })
2475            .when(!recent_history.is_empty(), |parent| {
2476                let focus_handle = focus_handle.clone();
2477                parent
2478                    .overflow_hidden()
2479                    .p_1p5()
2480                    .justify_end()
2481                    .gap_1()
2482                    .child(
2483                        self.render_empty_state_section_header(
2484                            "Recent",
2485                            Some(
2486                                Button::new("view-history", "View All")
2487                                    .style(ButtonStyle::Subtle)
2488                                    .label_size(LabelSize::Small)
2489                                    .key_binding(
2490                                        KeyBinding::for_action_in(
2491                                            &OpenHistory,
2492                                            &self.focus_handle(cx),
2493                                            window,
2494                                            cx,
2495                                        )
2496                                        .map(|kb| kb.size(rems_from_px(12.))),
2497                                    )
2498                                    .on_click(move |_event, window, cx| {
2499                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2500                                    })
2501                                    .into_any_element(),
2502                            ),
2503                            cx,
2504                        ),
2505                    )
2506                    .child(
2507                        v_flex()
2508                            .gap_1()
2509                            .children(recent_history.into_iter().enumerate().map(
2510                                |(index, entry)| {
2511                                    // TODO: Add keyboard navigation.
2512                                    let is_hovered =
2513                                        self.hovered_recent_history_item == Some(index);
2514                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2515                                        .hovered(is_hovered)
2516                                        .on_hover(cx.listener(
2517                                            move |this, is_hovered, _window, cx| {
2518                                                if *is_hovered {
2519                                                    this.hovered_recent_history_item = Some(index);
2520                                                } else if this.hovered_recent_history_item
2521                                                    == Some(index)
2522                                                {
2523                                                    this.hovered_recent_history_item = None;
2524                                                }
2525                                                cx.notify();
2526                                            },
2527                                        ))
2528                                        .into_any_element()
2529                                },
2530                            )),
2531                    )
2532                    .child(self.render_empty_state_section_header("Start", None, cx))
2533                    .child(
2534                        v_flex()
2535                            .p_1()
2536                            .gap_2()
2537                            .child(
2538                                h_flex()
2539                                    .w_full()
2540                                    .gap_2()
2541                                    .child(
2542                                        NewThreadButton::new(
2543                                            "new-thread-btn",
2544                                            "New Thread",
2545                                            IconName::NewThread,
2546                                        )
2547                                        .keybinding(KeyBinding::for_action_in(
2548                                            &NewThread::default(),
2549                                            &self.focus_handle(cx),
2550                                            window,
2551                                            cx,
2552                                        ))
2553                                        .on_click(
2554                                            |window, cx| {
2555                                                window.dispatch_action(
2556                                                    NewThread::default().boxed_clone(),
2557                                                    cx,
2558                                                )
2559                                            },
2560                                        ),
2561                                    )
2562                                    .child(
2563                                        NewThreadButton::new(
2564                                            "new-text-thread-btn",
2565                                            "New Text Thread",
2566                                            IconName::NewTextThread,
2567                                        )
2568                                        .keybinding(KeyBinding::for_action_in(
2569                                            &NewTextThread,
2570                                            &self.focus_handle(cx),
2571                                            window,
2572                                            cx,
2573                                        ))
2574                                        .on_click(
2575                                            |window, cx| {
2576                                                window.dispatch_action(Box::new(NewTextThread), cx)
2577                                            },
2578                                        ),
2579                                    ),
2580                            )
2581                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
2582                                this.child(
2583                                    h_flex()
2584                                        .w_full()
2585                                        .gap_2()
2586                                        .child(
2587                                            NewThreadButton::new(
2588                                                "new-gemini-thread-btn",
2589                                                "New Gemini Thread",
2590                                                IconName::AiGemini,
2591                                            )
2592                                            // .keybinding(KeyBinding::for_action_in(
2593                                            //     &OpenHistory,
2594                                            //     &self.focus_handle(cx),
2595                                            //     window,
2596                                            //     cx,
2597                                            // ))
2598                                            .on_click(
2599                                                |window, cx| {
2600                                                    window.dispatch_action(
2601                                                        Box::new(NewExternalAgentThread {
2602                                                            agent: Some(
2603                                                                crate::ExternalAgent::Gemini,
2604                                                            ),
2605                                                        }),
2606                                                        cx,
2607                                                    )
2608                                                },
2609                                            ),
2610                                        )
2611                                        .child(
2612                                            NewThreadButton::new(
2613                                                "new-claude-thread-btn",
2614                                                "New Claude Code Thread",
2615                                                IconName::AiClaude,
2616                                            )
2617                                            // .keybinding(KeyBinding::for_action_in(
2618                                            //     &OpenHistory,
2619                                            //     &self.focus_handle(cx),
2620                                            //     window,
2621                                            //     cx,
2622                                            // ))
2623                                            .on_click(
2624                                                |window, cx| {
2625                                                    window.dispatch_action(
2626                                                        Box::new(NewExternalAgentThread {
2627                                                            agent: Some(
2628                                                                crate::ExternalAgent::ClaudeCode,
2629                                                            ),
2630                                                        }),
2631                                                        cx,
2632                                                    )
2633                                                },
2634                                            ),
2635                                        ),
2636                                )
2637                            }),
2638                    )
2639                    .when_some(configuration_error.as_ref(), |this, err| {
2640                        this.child(self.render_configuration_error(err, &focus_handle, window, cx))
2641                    })
2642            })
2643    }
2644
2645    fn render_configuration_error(
2646        &self,
2647        configuration_error: &ConfigurationError,
2648        focus_handle: &FocusHandle,
2649        window: &mut Window,
2650        cx: &mut App,
2651    ) -> impl IntoElement {
2652        match configuration_error {
2653            ConfigurationError::ModelNotFound
2654            | ConfigurationError::ProviderNotAuthenticated(_)
2655            | ConfigurationError::NoProvider => Banner::new()
2656                .severity(ui::Severity::Warning)
2657                .child(Label::new(configuration_error.to_string()))
2658                .action_slot(
2659                    Button::new("settings", "Configure Provider")
2660                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2661                        .label_size(LabelSize::Small)
2662                        .key_binding(
2663                            KeyBinding::for_action_in(
2664                                &OpenConfiguration,
2665                                &focus_handle,
2666                                window,
2667                                cx,
2668                            )
2669                            .map(|kb| kb.size(rems_from_px(12.))),
2670                        )
2671                        .on_click(|_event, window, cx| {
2672                            window.dispatch_action(OpenConfiguration.boxed_clone(), cx)
2673                        }),
2674                ),
2675            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
2676                Banner::new().severity(ui::Severity::Warning).child(
2677                    h_flex().w_full().children(
2678                        provider.render_accept_terms(
2679                            LanguageModelProviderTosView::ThreadEmptyState,
2680                            cx,
2681                        ),
2682                    ),
2683                )
2684            }
2685        }
2686    }
2687
2688    fn render_tool_use_limit_reached(
2689        &self,
2690        window: &mut Window,
2691        cx: &mut Context<Self>,
2692    ) -> Option<AnyElement> {
2693        let active_thread = match &self.active_view {
2694            ActiveView::Thread { thread, .. } => thread,
2695            ActiveView::ExternalAgentThread { .. } => {
2696                return None;
2697            }
2698            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2699                return None;
2700            }
2701        };
2702
2703        let thread = active_thread.read(cx).thread().read(cx);
2704
2705        let tool_use_limit_reached = thread.tool_use_limit_reached();
2706        if !tool_use_limit_reached {
2707            return None;
2708        }
2709
2710        let model = thread.configured_model()?.model;
2711
2712        let focus_handle = self.focus_handle(cx);
2713
2714        let banner = Banner::new()
2715            .severity(ui::Severity::Info)
2716            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2717            .action_slot(
2718                h_flex()
2719                    .gap_1()
2720                    .child(
2721                        Button::new("continue-conversation", "Continue")
2722                            .layer(ElevationIndex::ModalSurface)
2723                            .label_size(LabelSize::Small)
2724                            .key_binding(
2725                                KeyBinding::for_action_in(
2726                                    &ContinueThread,
2727                                    &focus_handle,
2728                                    window,
2729                                    cx,
2730                                )
2731                                .map(|kb| kb.size(rems_from_px(10.))),
2732                            )
2733                            .on_click(cx.listener(|this, _, window, cx| {
2734                                this.continue_conversation(window, cx);
2735                            })),
2736                    )
2737                    .when(model.supports_burn_mode(), |this| {
2738                        this.child(
2739                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2740                                .style(ButtonStyle::Filled)
2741                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2742                                .layer(ElevationIndex::ModalSurface)
2743                                .label_size(LabelSize::Small)
2744                                .key_binding(
2745                                    KeyBinding::for_action_in(
2746                                        &ContinueWithBurnMode,
2747                                        &focus_handle,
2748                                        window,
2749                                        cx,
2750                                    )
2751                                    .map(|kb| kb.size(rems_from_px(10.))),
2752                                )
2753                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
2754                                .on_click({
2755                                    let active_thread = active_thread.clone();
2756                                    cx.listener(move |this, _, window, cx| {
2757                                        active_thread.update(cx, |active_thread, cx| {
2758                                            active_thread.thread().update(cx, |thread, _cx| {
2759                                                thread.set_completion_mode(CompletionMode::Burn);
2760                                            });
2761                                        });
2762                                        this.continue_conversation(window, cx);
2763                                    })
2764                                }),
2765                        )
2766                    }),
2767            );
2768
2769        Some(div().px_2().pb_2().child(banner).into_any_element())
2770    }
2771
2772    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
2773        let message = message.into();
2774
2775        IconButton::new("copy", IconName::Copy)
2776            .icon_size(IconSize::Small)
2777            .icon_color(Color::Muted)
2778            .tooltip(Tooltip::text("Copy Error Message"))
2779            .on_click(move |_, _, cx| {
2780                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
2781            })
2782    }
2783
2784    fn dismiss_error_button(
2785        &self,
2786        thread: &Entity<ActiveThread>,
2787        cx: &mut Context<Self>,
2788    ) -> impl IntoElement {
2789        IconButton::new("dismiss", IconName::Close)
2790            .icon_size(IconSize::Small)
2791            .icon_color(Color::Muted)
2792            .tooltip(Tooltip::text("Dismiss Error"))
2793            .on_click(cx.listener({
2794                let thread = thread.clone();
2795                move |_, _, _, cx| {
2796                    thread.update(cx, |this, _cx| {
2797                        this.clear_last_error();
2798                    });
2799
2800                    cx.notify();
2801                }
2802            }))
2803    }
2804
2805    fn upgrade_button(
2806        &self,
2807        thread: &Entity<ActiveThread>,
2808        cx: &mut Context<Self>,
2809    ) -> impl IntoElement {
2810        Button::new("upgrade", "Upgrade")
2811            .label_size(LabelSize::Small)
2812            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2813            .on_click(cx.listener({
2814                let thread = thread.clone();
2815                move |_, _, _, cx| {
2816                    thread.update(cx, |this, _cx| {
2817                        this.clear_last_error();
2818                    });
2819
2820                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
2821                    cx.notify();
2822                }
2823            }))
2824    }
2825
2826    fn error_callout_bg(&self, cx: &Context<Self>) -> Hsla {
2827        cx.theme().status().error.opacity(0.08)
2828    }
2829
2830    fn render_payment_required_error(
2831        &self,
2832        thread: &Entity<ActiveThread>,
2833        cx: &mut Context<Self>,
2834    ) -> AnyElement {
2835        const ERROR_MESSAGE: &str =
2836            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
2837
2838        let icon = Icon::new(IconName::XCircle)
2839            .size(IconSize::Small)
2840            .color(Color::Error);
2841
2842        div()
2843            .border_t_1()
2844            .border_color(cx.theme().colors().border)
2845            .child(
2846                Callout::new()
2847                    .icon(icon)
2848                    .title("Free Usage Exceeded")
2849                    .description(ERROR_MESSAGE)
2850                    .tertiary_action(self.upgrade_button(thread, cx))
2851                    .secondary_action(self.create_copy_button(ERROR_MESSAGE))
2852                    .primary_action(self.dismiss_error_button(thread, cx))
2853                    .bg_color(self.error_callout_bg(cx)),
2854            )
2855            .into_any_element()
2856    }
2857
2858    fn render_model_request_limit_reached_error(
2859        &self,
2860        plan: Plan,
2861        thread: &Entity<ActiveThread>,
2862        cx: &mut Context<Self>,
2863    ) -> AnyElement {
2864        let error_message = match plan {
2865            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
2866            Plan::ZedProTrial | Plan::Free => "Upgrade to Zed Pro for more prompts.",
2867        };
2868
2869        let icon = Icon::new(IconName::XCircle)
2870            .size(IconSize::Small)
2871            .color(Color::Error);
2872
2873        div()
2874            .border_t_1()
2875            .border_color(cx.theme().colors().border)
2876            .child(
2877                Callout::new()
2878                    .icon(icon)
2879                    .title("Model Prompt Limit Reached")
2880                    .description(error_message)
2881                    .tertiary_action(self.upgrade_button(thread, cx))
2882                    .secondary_action(self.create_copy_button(error_message))
2883                    .primary_action(self.dismiss_error_button(thread, cx))
2884                    .bg_color(self.error_callout_bg(cx)),
2885            )
2886            .into_any_element()
2887    }
2888
2889    fn render_error_message(
2890        &self,
2891        header: SharedString,
2892        message: SharedString,
2893        thread: &Entity<ActiveThread>,
2894        cx: &mut Context<Self>,
2895    ) -> AnyElement {
2896        let message_with_header = format!("{}\n{}", header, message);
2897
2898        let icon = Icon::new(IconName::XCircle)
2899            .size(IconSize::Small)
2900            .color(Color::Error);
2901
2902        let retry_button = Button::new("retry", "Retry")
2903            .icon(IconName::RotateCw)
2904            .icon_position(IconPosition::Start)
2905            .icon_size(IconSize::Small)
2906            .label_size(LabelSize::Small)
2907            .on_click({
2908                let thread = thread.clone();
2909                move |_, window, cx| {
2910                    thread.update(cx, |thread, cx| {
2911                        thread.clear_last_error();
2912                        thread.thread().update(cx, |thread, cx| {
2913                            thread.retry_last_completion(Some(window.window_handle()), cx);
2914                        });
2915                    });
2916                }
2917            });
2918
2919        div()
2920            .border_t_1()
2921            .border_color(cx.theme().colors().border)
2922            .child(
2923                Callout::new()
2924                    .icon(icon)
2925                    .title(header)
2926                    .description(message.clone())
2927                    .primary_action(retry_button)
2928                    .secondary_action(self.dismiss_error_button(thread, cx))
2929                    .tertiary_action(self.create_copy_button(message_with_header))
2930                    .bg_color(self.error_callout_bg(cx)),
2931            )
2932            .into_any_element()
2933    }
2934
2935    fn render_retryable_error(
2936        &self,
2937        message: SharedString,
2938        can_enable_burn_mode: bool,
2939        thread: &Entity<ActiveThread>,
2940        cx: &mut Context<Self>,
2941    ) -> AnyElement {
2942        let icon = Icon::new(IconName::XCircle)
2943            .size(IconSize::Small)
2944            .color(Color::Error);
2945
2946        let retry_button = Button::new("retry", "Retry")
2947            .icon(IconName::RotateCw)
2948            .icon_position(IconPosition::Start)
2949            .icon_size(IconSize::Small)
2950            .label_size(LabelSize::Small)
2951            .on_click({
2952                let thread = thread.clone();
2953                move |_, window, cx| {
2954                    thread.update(cx, |thread, cx| {
2955                        thread.clear_last_error();
2956                        thread.thread().update(cx, |thread, cx| {
2957                            thread.retry_last_completion(Some(window.window_handle()), cx);
2958                        });
2959                    });
2960                }
2961            });
2962
2963        let mut callout = Callout::new()
2964            .icon(icon)
2965            .title("Error")
2966            .description(message.clone())
2967            .bg_color(self.error_callout_bg(cx))
2968            .primary_action(retry_button);
2969
2970        if can_enable_burn_mode {
2971            let burn_mode_button = Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
2972                .icon(IconName::ZedBurnMode)
2973                .icon_position(IconPosition::Start)
2974                .icon_size(IconSize::Small)
2975                .label_size(LabelSize::Small)
2976                .on_click({
2977                    let thread = thread.clone();
2978                    move |_, window, cx| {
2979                        thread.update(cx, |thread, cx| {
2980                            thread.clear_last_error();
2981                            thread.thread().update(cx, |thread, cx| {
2982                                thread.enable_burn_mode_and_retry(Some(window.window_handle()), cx);
2983                            });
2984                        });
2985                    }
2986                });
2987            callout = callout.secondary_action(burn_mode_button);
2988        }
2989
2990        div()
2991            .border_t_1()
2992            .border_color(cx.theme().colors().border)
2993            .child(callout)
2994            .into_any_element()
2995    }
2996
2997    fn render_prompt_editor(
2998        &self,
2999        context_editor: &Entity<TextThreadEditor>,
3000        buffer_search_bar: &Entity<BufferSearchBar>,
3001        window: &mut Window,
3002        cx: &mut Context<Self>,
3003    ) -> Div {
3004        let mut registrar = buffer_search::DivRegistrar::new(
3005            |this, _, _cx| match &this.active_view {
3006                ActiveView::TextThread {
3007                    buffer_search_bar, ..
3008                } => Some(buffer_search_bar.clone()),
3009                _ => None,
3010            },
3011            cx,
3012        );
3013        BufferSearchBar::register(&mut registrar);
3014        registrar
3015            .into_div()
3016            .size_full()
3017            .relative()
3018            .map(|parent| {
3019                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3020                    if buffer_search_bar.is_dismissed() {
3021                        return parent;
3022                    }
3023                    parent.child(
3024                        div()
3025                            .p(DynamicSpacing::Base08.rems(cx))
3026                            .border_b_1()
3027                            .border_color(cx.theme().colors().border_variant)
3028                            .bg(cx.theme().colors().editor_background)
3029                            .child(buffer_search_bar.render(window, cx)),
3030                    )
3031                })
3032            })
3033            .child(context_editor.clone())
3034            .child(self.render_drag_target(cx))
3035    }
3036
3037    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3038        let is_local = self.project.read(cx).is_local();
3039        div()
3040            .invisible()
3041            .absolute()
3042            .top_0()
3043            .right_0()
3044            .bottom_0()
3045            .left_0()
3046            .bg(cx.theme().colors().drop_target_background)
3047            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3048            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3049            .when(is_local, |this| {
3050                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3051            })
3052            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3053                let item = tab.pane.read(cx).item_for_index(tab.ix);
3054                let project_paths = item
3055                    .and_then(|item| item.project_path(cx))
3056                    .into_iter()
3057                    .collect::<Vec<_>>();
3058                this.handle_drop(project_paths, vec![], window, cx);
3059            }))
3060            .on_drop(
3061                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3062                    let project_paths = selection
3063                        .items()
3064                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3065                        .collect::<Vec<_>>();
3066                    this.handle_drop(project_paths, vec![], window, cx);
3067                }),
3068            )
3069            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3070                let tasks = paths
3071                    .paths()
3072                    .into_iter()
3073                    .map(|path| {
3074                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
3075                    })
3076                    .collect::<Vec<_>>();
3077                cx.spawn_in(window, async move |this, cx| {
3078                    let mut paths = vec![];
3079                    let mut added_worktrees = vec![];
3080                    let opened_paths = futures::future::join_all(tasks).await;
3081                    for entry in opened_paths {
3082                        if let Some((worktree, project_path)) = entry.log_err() {
3083                            added_worktrees.push(worktree);
3084                            paths.push(project_path);
3085                        }
3086                    }
3087                    this.update_in(cx, |this, window, cx| {
3088                        this.handle_drop(paths, added_worktrees, window, cx);
3089                    })
3090                    .ok();
3091                })
3092                .detach();
3093            }))
3094    }
3095
3096    fn handle_drop(
3097        &mut self,
3098        paths: Vec<ProjectPath>,
3099        added_worktrees: Vec<Entity<Worktree>>,
3100        window: &mut Window,
3101        cx: &mut Context<Self>,
3102    ) {
3103        match &self.active_view {
3104            ActiveView::Thread { thread, .. } => {
3105                let context_store = thread.read(cx).context_store().clone();
3106                context_store.update(cx, move |context_store, cx| {
3107                    let mut tasks = Vec::new();
3108                    for project_path in &paths {
3109                        tasks.push(context_store.add_file_from_path(
3110                            project_path.clone(),
3111                            false,
3112                            cx,
3113                        ));
3114                    }
3115                    cx.background_spawn(async move {
3116                        futures::future::join_all(tasks).await;
3117                        // Need to hold onto the worktrees until they have already been used when
3118                        // opening the buffers.
3119                        drop(added_worktrees);
3120                    })
3121                    .detach();
3122                });
3123            }
3124            ActiveView::ExternalAgentThread { .. } => {
3125                unimplemented!()
3126            }
3127            ActiveView::TextThread { context_editor, .. } => {
3128                context_editor.update(cx, |context_editor, cx| {
3129                    TextThreadEditor::insert_dragged_files(
3130                        context_editor,
3131                        paths,
3132                        added_worktrees,
3133                        window,
3134                        cx,
3135                    );
3136                });
3137            }
3138            ActiveView::History | ActiveView::Configuration => {}
3139        }
3140    }
3141
3142    fn key_context(&self) -> KeyContext {
3143        let mut key_context = KeyContext::new_with_defaults();
3144        key_context.add("AgentPanel");
3145        match &self.active_view {
3146            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3147            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3148            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3149        }
3150        key_context
3151    }
3152}
3153
3154impl Render for AgentPanel {
3155    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3156        // WARNING: Changes to this element hierarchy can have
3157        // non-obvious implications to the layout of children.
3158        //
3159        // If you need to change it, please confirm:
3160        // - The message editor expands (cmd-option-esc) correctly
3161        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3162        // - Font size works as expected and can be changed with cmd-+/cmd-
3163        // - Scrolling in all views works as expected
3164        // - Files can be dropped into the panel
3165        let content = v_flex()
3166            .key_context(self.key_context())
3167            .justify_between()
3168            .size_full()
3169            .on_action(cx.listener(Self::cancel))
3170            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3171                this.new_thread(action, window, cx);
3172            }))
3173            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3174                this.open_history(window, cx);
3175            }))
3176            .on_action(cx.listener(|this, _: &OpenConfiguration, window, cx| {
3177                this.open_configuration(window, cx);
3178            }))
3179            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3180            .on_action(cx.listener(Self::deploy_rules_library))
3181            .on_action(cx.listener(Self::open_agent_diff))
3182            .on_action(cx.listener(Self::go_back))
3183            .on_action(cx.listener(Self::toggle_navigation_menu))
3184            .on_action(cx.listener(Self::toggle_options_menu))
3185            .on_action(cx.listener(Self::increase_font_size))
3186            .on_action(cx.listener(Self::decrease_font_size))
3187            .on_action(cx.listener(Self::reset_font_size))
3188            .on_action(cx.listener(Self::toggle_zoom))
3189            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3190                this.continue_conversation(window, cx);
3191            }))
3192            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3193                match &this.active_view {
3194                    ActiveView::Thread { thread, .. } => {
3195                        thread.update(cx, |active_thread, cx| {
3196                            active_thread.thread().update(cx, |thread, _cx| {
3197                                thread.set_completion_mode(CompletionMode::Burn);
3198                            });
3199                        });
3200                        this.continue_conversation(window, cx);
3201                    }
3202                    ActiveView::ExternalAgentThread { .. } => {}
3203                    ActiveView::TextThread { .. }
3204                    | ActiveView::History
3205                    | ActiveView::Configuration => {}
3206                }
3207            }))
3208            .on_action(cx.listener(Self::toggle_burn_mode))
3209            .child(self.render_toolbar(window, cx))
3210            .children(self.render_onboarding(window, cx))
3211            .children(self.render_trial_end_upsell(window, cx))
3212            .map(|parent| match &self.active_view {
3213                ActiveView::Thread {
3214                    thread,
3215                    message_editor,
3216                    ..
3217                } => parent
3218                    .relative()
3219                    .child(
3220                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3221                            self.render_thread_empty_state(window, cx)
3222                                .into_any_element()
3223                        } else {
3224                            thread.clone().into_any_element()
3225                        },
3226                    )
3227                    .children(self.render_tool_use_limit_reached(window, cx))
3228                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3229                        this.child(
3230                            div()
3231                                .child(match last_error {
3232                                    ThreadError::PaymentRequired => {
3233                                        self.render_payment_required_error(thread, cx)
3234                                    }
3235                                    ThreadError::ModelRequestLimitReached { plan } => self
3236                                        .render_model_request_limit_reached_error(plan, thread, cx),
3237                                    ThreadError::Message { header, message } => {
3238                                        self.render_error_message(header, message, thread, cx)
3239                                    }
3240                                    ThreadError::RetryableError {
3241                                        message,
3242                                        can_enable_burn_mode,
3243                                    } => self.render_retryable_error(
3244                                        message,
3245                                        can_enable_burn_mode,
3246                                        thread,
3247                                        cx,
3248                                    ),
3249                                })
3250                                .into_any(),
3251                        )
3252                    })
3253                    .child(h_flex().relative().child(message_editor.clone()).when(
3254                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3255                        |this| {
3256                            this.child(
3257                                div()
3258                                    .size_full()
3259                                    .absolute()
3260                                    .inset_0()
3261                                    .bg(cx.theme().colors().panel_background)
3262                                    .opacity(0.8)
3263                                    .block_mouse_except_scroll(),
3264                            )
3265                        },
3266                    ))
3267                    .child(self.render_drag_target(cx)),
3268                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3269                    .relative()
3270                    .child(thread_view.clone())
3271                    .child(self.render_drag_target(cx)),
3272                ActiveView::History => parent.child(self.history.clone()),
3273                ActiveView::TextThread {
3274                    context_editor,
3275                    buffer_search_bar,
3276                    ..
3277                } => {
3278                    let model_registry = LanguageModelRegistry::read_global(cx);
3279                    let configuration_error =
3280                        model_registry.configuration_error(model_registry.default_model(), cx);
3281                    parent
3282                        .map(|this| {
3283                            if !self.should_render_onboarding(cx)
3284                                && let Some(err) = configuration_error.as_ref()
3285                            {
3286                                this.child(
3287                                    div().bg(cx.theme().colors().editor_background).p_2().child(
3288                                        self.render_configuration_error(
3289                                            err,
3290                                            &self.focus_handle(cx),
3291                                            window,
3292                                            cx,
3293                                        ),
3294                                    ),
3295                                )
3296                            } else {
3297                                this
3298                            }
3299                        })
3300                        .child(self.render_prompt_editor(
3301                            context_editor,
3302                            buffer_search_bar,
3303                            window,
3304                            cx,
3305                        ))
3306                }
3307                ActiveView::Configuration => parent.children(self.configuration.clone()),
3308            });
3309
3310        match self.active_view.which_font_size_used() {
3311            WhichFontSize::AgentFont => {
3312                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3313                    .size_full()
3314                    .child(content)
3315                    .into_any()
3316            }
3317            _ => content.into_any(),
3318        }
3319    }
3320}
3321
3322struct PromptLibraryInlineAssist {
3323    workspace: WeakEntity<Workspace>,
3324}
3325
3326impl PromptLibraryInlineAssist {
3327    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3328        Self { workspace }
3329    }
3330}
3331
3332impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3333    fn assist(
3334        &self,
3335        prompt_editor: &Entity<Editor>,
3336        initial_prompt: Option<String>,
3337        window: &mut Window,
3338        cx: &mut Context<RulesLibrary>,
3339    ) {
3340        InlineAssistant::update_global(cx, |assistant, cx| {
3341            let Some(project) = self
3342                .workspace
3343                .upgrade()
3344                .map(|workspace| workspace.read(cx).project().downgrade())
3345            else {
3346                return;
3347            };
3348            let prompt_store = None;
3349            let thread_store = None;
3350            let text_thread_store = None;
3351            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3352            assistant.assist(
3353                &prompt_editor,
3354                self.workspace.clone(),
3355                context_store,
3356                project,
3357                prompt_store,
3358                thread_store,
3359                text_thread_store,
3360                initial_prompt,
3361                window,
3362                cx,
3363            )
3364        })
3365    }
3366
3367    fn focus_agent_panel(
3368        &self,
3369        workspace: &mut Workspace,
3370        window: &mut Window,
3371        cx: &mut Context<Workspace>,
3372    ) -> bool {
3373        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3374    }
3375}
3376
3377pub struct ConcreteAssistantPanelDelegate;
3378
3379impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3380    fn active_context_editor(
3381        &self,
3382        workspace: &mut Workspace,
3383        _window: &mut Window,
3384        cx: &mut Context<Workspace>,
3385    ) -> Option<Entity<TextThreadEditor>> {
3386        let panel = workspace.panel::<AgentPanel>(cx)?;
3387        panel.read(cx).active_context_editor()
3388    }
3389
3390    fn open_saved_context(
3391        &self,
3392        workspace: &mut Workspace,
3393        path: Arc<Path>,
3394        window: &mut Window,
3395        cx: &mut Context<Workspace>,
3396    ) -> Task<Result<()>> {
3397        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3398            return Task::ready(Err(anyhow!("Agent panel not found")));
3399        };
3400
3401        panel.update(cx, |panel, cx| {
3402            panel.open_saved_prompt_editor(path, window, cx)
3403        })
3404    }
3405
3406    fn open_remote_context(
3407        &self,
3408        _workspace: &mut Workspace,
3409        _context_id: assistant_context::ContextId,
3410        _window: &mut Window,
3411        _cx: &mut Context<Workspace>,
3412    ) -> Task<Result<Entity<TextThreadEditor>>> {
3413        Task::ready(Err(anyhow!("opening remote context not implemented")))
3414    }
3415
3416    fn quote_selection(
3417        &self,
3418        workspace: &mut Workspace,
3419        selection_ranges: Vec<Range<Anchor>>,
3420        buffer: Entity<MultiBuffer>,
3421        window: &mut Window,
3422        cx: &mut Context<Workspace>,
3423    ) {
3424        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3425            return;
3426        };
3427
3428        if !panel.focus_handle(cx).contains_focused(window, cx) {
3429            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3430        }
3431
3432        panel.update(cx, |_, cx| {
3433            // Wait to create a new context until the workspace is no longer
3434            // being updated.
3435            cx.defer_in(window, move |panel, window, cx| {
3436                if let Some(message_editor) = panel.active_message_editor() {
3437                    message_editor.update(cx, |message_editor, cx| {
3438                        message_editor.context_store().update(cx, |store, cx| {
3439                            let buffer = buffer.read(cx);
3440                            let selection_ranges = selection_ranges
3441                                .into_iter()
3442                                .flat_map(|range| {
3443                                    let (start_buffer, start) =
3444                                        buffer.text_anchor_for_position(range.start, cx)?;
3445                                    let (end_buffer, end) =
3446                                        buffer.text_anchor_for_position(range.end, cx)?;
3447                                    if start_buffer != end_buffer {
3448                                        return None;
3449                                    }
3450                                    Some((start_buffer, start..end))
3451                                })
3452                                .collect::<Vec<_>>();
3453
3454                            for (buffer, range) in selection_ranges {
3455                                store.add_selection(buffer, range, cx);
3456                            }
3457                        })
3458                    })
3459                } else if let Some(context_editor) = panel.active_context_editor() {
3460                    let snapshot = buffer.read(cx).snapshot(cx);
3461                    let selection_ranges = selection_ranges
3462                        .into_iter()
3463                        .map(|range| range.to_point(&snapshot))
3464                        .collect::<Vec<_>>();
3465
3466                    context_editor.update(cx, |context_editor, cx| {
3467                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3468                    });
3469                }
3470            });
3471        });
3472    }
3473}
3474
3475struct OnboardingUpsell;
3476
3477impl Dismissable for OnboardingUpsell {
3478    const KEY: &'static str = "dismissed-trial-upsell";
3479}
3480
3481struct TrialEndUpsell;
3482
3483impl Dismissable for TrialEndUpsell {
3484    const KEY: &'static str = "dismissed-trial-end-upsell";
3485}