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                                .action(
1980                                    "New Codex Thread",
1981                                    NewExternalAgentThread {
1982                                        agent: Some(crate::ExternalAgent::Codex),
1983                                    }
1984                                    .boxed_clone(),
1985                                )
1986                        });
1987                    menu
1988                }))
1989            });
1990
1991        let agent_panel_menu = PopoverMenu::new("agent-options-menu")
1992            .trigger_with_tooltip(
1993                IconButton::new("agent-options-menu", IconName::Ellipsis)
1994                    .icon_size(IconSize::Small),
1995                {
1996                    let focus_handle = focus_handle.clone();
1997                    move |window, cx| {
1998                        Tooltip::for_action_in(
1999                            "Toggle Agent Menu",
2000                            &ToggleOptionsMenu,
2001                            &focus_handle,
2002                            window,
2003                            cx,
2004                        )
2005                    }
2006                },
2007            )
2008            .anchor(Corner::TopRight)
2009            .with_handle(self.agent_panel_menu_handle.clone())
2010            .menu(move |window, cx| {
2011                Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2012                    if let Some(usage) = usage {
2013                        menu = menu
2014                            .header_with_link("Prompt Usage", "Manage", account_url.clone())
2015                            .custom_entry(
2016                                move |_window, cx| {
2017                                    let used_percentage = match usage.limit {
2018                                        UsageLimit::Limited(limit) => {
2019                                            Some((usage.amount as f32 / limit as f32) * 100.)
2020                                        }
2021                                        UsageLimit::Unlimited => None,
2022                                    };
2023
2024                                    h_flex()
2025                                        .flex_1()
2026                                        .gap_1p5()
2027                                        .children(used_percentage.map(|percent| {
2028                                            ProgressBar::new("usage", percent, 100., cx)
2029                                        }))
2030                                        .child(
2031                                            Label::new(match usage.limit {
2032                                                UsageLimit::Limited(limit) => {
2033                                                    format!("{} / {limit}", usage.amount)
2034                                                }
2035                                                UsageLimit::Unlimited => {
2036                                                    format!("{} / ∞", usage.amount)
2037                                                }
2038                                            })
2039                                            .size(LabelSize::Small)
2040                                            .color(Color::Muted),
2041                                        )
2042                                        .into_any_element()
2043                                },
2044                                move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2045                            )
2046                            .separator()
2047                    }
2048
2049                    menu = menu
2050                        .header("MCP Servers")
2051                        .action(
2052                            "View Server Extensions",
2053                            Box::new(zed_actions::Extensions {
2054                                category_filter: Some(
2055                                    zed_actions::ExtensionCategoryFilter::ContextServers,
2056                                ),
2057                                id: None,
2058                            }),
2059                        )
2060                        .action("Add Custom Server…", Box::new(AddContextServer))
2061                        .separator();
2062
2063                    menu = menu
2064                        .action("Rules…", Box::new(OpenRulesLibrary::default()))
2065                        .action("Settings", Box::new(OpenConfiguration))
2066                        .action(zoom_in_label, Box::new(ToggleZoom));
2067                    menu
2068                }))
2069            });
2070
2071        h_flex()
2072            .id("assistant-toolbar")
2073            .h(Tab::container_height(cx))
2074            .max_w_full()
2075            .flex_none()
2076            .justify_between()
2077            .gap_2()
2078            .bg(cx.theme().colors().tab_bar_background)
2079            .border_b_1()
2080            .border_color(cx.theme().colors().border)
2081            .child(
2082                h_flex()
2083                    .size_full()
2084                    .pl_1()
2085                    .gap_1()
2086                    .child(match &self.active_view {
2087                        ActiveView::History | ActiveView::Configuration => go_back_button,
2088                        _ => recent_entries_menu,
2089                    })
2090                    .child(self.render_title_view(window, cx)),
2091            )
2092            .child(
2093                h_flex()
2094                    .h_full()
2095                    .gap_2()
2096                    .children(self.render_token_count(cx))
2097                    .child(
2098                        h_flex()
2099                            .h_full()
2100                            .gap(DynamicSpacing::Base02.rems(cx))
2101                            .px(DynamicSpacing::Base08.rems(cx))
2102                            .border_l_1()
2103                            .border_color(cx.theme().colors().border)
2104                            .child(new_thread_menu)
2105                            .child(agent_panel_menu),
2106                    ),
2107            )
2108    }
2109
2110    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2111        match &self.active_view {
2112            ActiveView::Thread {
2113                thread,
2114                message_editor,
2115                ..
2116            } => {
2117                let active_thread = thread.read(cx);
2118                let message_editor = message_editor.read(cx);
2119
2120                let editor_empty = message_editor.is_editor_fully_empty(cx);
2121
2122                if active_thread.is_empty() && editor_empty {
2123                    return None;
2124                }
2125
2126                let thread = active_thread.thread().read(cx);
2127                let is_generating = thread.is_generating();
2128                let conversation_token_usage = thread.total_token_usage()?;
2129
2130                let (total_token_usage, is_estimating) =
2131                    if let Some((editing_message_id, unsent_tokens)) =
2132                        active_thread.editing_message_id()
2133                    {
2134                        let combined = thread
2135                            .token_usage_up_to_message(editing_message_id)
2136                            .add(unsent_tokens);
2137
2138                        (combined, unsent_tokens > 0)
2139                    } else {
2140                        let unsent_tokens =
2141                            message_editor.last_estimated_token_count().unwrap_or(0);
2142                        let combined = conversation_token_usage.add(unsent_tokens);
2143
2144                        (combined, unsent_tokens > 0)
2145                    };
2146
2147                let is_waiting_to_update_token_count =
2148                    message_editor.is_waiting_to_update_token_count();
2149
2150                if total_token_usage.total == 0 {
2151                    return None;
2152                }
2153
2154                let token_color = match total_token_usage.ratio() {
2155                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2156                    TokenUsageRatio::Normal => Color::Muted,
2157                    TokenUsageRatio::Warning => Color::Warning,
2158                    TokenUsageRatio::Exceeded => Color::Error,
2159                };
2160
2161                let token_count = h_flex()
2162                    .id("token-count")
2163                    .flex_shrink_0()
2164                    .gap_0p5()
2165                    .when(!is_generating && is_estimating, |parent| {
2166                        parent
2167                            .child(
2168                                h_flex()
2169                                    .mr_1()
2170                                    .size_2p5()
2171                                    .justify_center()
2172                                    .rounded_full()
2173                                    .bg(cx.theme().colors().text.opacity(0.1))
2174                                    .child(
2175                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2176                                    ),
2177                            )
2178                            .tooltip(move |window, cx| {
2179                                Tooltip::with_meta(
2180                                    "Estimated New Token Count",
2181                                    None,
2182                                    format!(
2183                                        "Current Conversation Tokens: {}",
2184                                        humanize_token_count(conversation_token_usage.total)
2185                                    ),
2186                                    window,
2187                                    cx,
2188                                )
2189                            })
2190                    })
2191                    .child(
2192                        Label::new(humanize_token_count(total_token_usage.total))
2193                            .size(LabelSize::Small)
2194                            .color(token_color)
2195                            .map(|label| {
2196                                if is_generating || is_waiting_to_update_token_count {
2197                                    label
2198                                        .with_animation(
2199                                            "used-tokens-label",
2200                                            Animation::new(Duration::from_secs(2))
2201                                                .repeat()
2202                                                .with_easing(pulsating_between(0.6, 1.)),
2203                                            |label, delta| label.alpha(delta),
2204                                        )
2205                                        .into_any()
2206                                } else {
2207                                    label.into_any_element()
2208                                }
2209                            }),
2210                    )
2211                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2212                    .child(
2213                        Label::new(humanize_token_count(total_token_usage.max))
2214                            .size(LabelSize::Small)
2215                            .color(Color::Muted),
2216                    )
2217                    .into_any();
2218
2219                Some(token_count)
2220            }
2221            ActiveView::TextThread { context_editor, .. } => {
2222                let element = render_remaining_tokens(context_editor, cx)?;
2223
2224                Some(element.into_any_element())
2225            }
2226            ActiveView::ExternalAgentThread { .. }
2227            | ActiveView::History
2228            | ActiveView::Configuration => {
2229                return None;
2230            }
2231        }
2232    }
2233
2234    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2235        if TrialEndUpsell::dismissed() {
2236            return false;
2237        }
2238
2239        match &self.active_view {
2240            ActiveView::Thread { thread, .. } => {
2241                if thread
2242                    .read(cx)
2243                    .thread()
2244                    .read(cx)
2245                    .configured_model()
2246                    .map_or(false, |model| {
2247                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2248                    })
2249                {
2250                    return false;
2251                }
2252            }
2253            ActiveView::TextThread { .. } => {
2254                if LanguageModelRegistry::global(cx)
2255                    .read(cx)
2256                    .default_model()
2257                    .map_or(false, |model| {
2258                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2259                    })
2260                {
2261                    return false;
2262                }
2263            }
2264            ActiveView::ExternalAgentThread { .. }
2265            | ActiveView::History
2266            | ActiveView::Configuration => return false,
2267        }
2268
2269        let plan = self.user_store.read(cx).current_plan();
2270        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2271
2272        matches!(plan, Some(Plan::Free)) && has_previous_trial
2273    }
2274
2275    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2276        if OnboardingUpsell::dismissed() {
2277            return false;
2278        }
2279
2280        match &self.active_view {
2281            ActiveView::Thread { thread, .. } => thread
2282                .read(cx)
2283                .thread()
2284                .read(cx)
2285                .configured_model()
2286                .map_or(true, |model| {
2287                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2288                }),
2289            ActiveView::TextThread { .. } => LanguageModelRegistry::global(cx)
2290                .read(cx)
2291                .default_model()
2292                .map_or(true, |model| {
2293                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2294                }),
2295            ActiveView::ExternalAgentThread { .. }
2296            | ActiveView::History
2297            | ActiveView::Configuration => false,
2298        }
2299    }
2300
2301    fn render_onboarding(
2302        &self,
2303        _window: &mut Window,
2304        cx: &mut Context<Self>,
2305    ) -> Option<impl IntoElement> {
2306        if !self.should_render_onboarding(cx) {
2307            return None;
2308        }
2309
2310        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2311        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2312
2313        Some(
2314            div()
2315                .size_full()
2316                .when(thread_view, |this| {
2317                    this.bg(cx.theme().colors().panel_background)
2318                })
2319                .when(text_thread_view, |this| {
2320                    this.bg(cx.theme().colors().editor_background)
2321                })
2322                .child(self.onboarding.clone()),
2323        )
2324    }
2325
2326    fn render_trial_end_upsell(
2327        &self,
2328        _window: &mut Window,
2329        cx: &mut Context<Self>,
2330    ) -> Option<impl IntoElement> {
2331        if !self.should_render_trial_end_upsell(cx) {
2332            return None;
2333        }
2334
2335        Some(EndTrialUpsell::new(Arc::new({
2336            let this = cx.entity();
2337            move |_, cx| {
2338                this.update(cx, |_this, cx| {
2339                    TrialEndUpsell::set_dismissed(true, cx);
2340                    cx.notify();
2341                });
2342            }
2343        })))
2344    }
2345
2346    fn render_empty_state_section_header(
2347        &self,
2348        label: impl Into<SharedString>,
2349        action_slot: Option<AnyElement>,
2350        cx: &mut Context<Self>,
2351    ) -> impl IntoElement {
2352        h_flex()
2353            .mt_2()
2354            .pl_1p5()
2355            .pb_1()
2356            .w_full()
2357            .justify_between()
2358            .border_b_1()
2359            .border_color(cx.theme().colors().border_variant)
2360            .child(
2361                Label::new(label.into())
2362                    .size(LabelSize::Small)
2363                    .color(Color::Muted),
2364            )
2365            .children(action_slot)
2366    }
2367
2368    fn render_thread_empty_state(
2369        &self,
2370        window: &mut Window,
2371        cx: &mut Context<Self>,
2372    ) -> impl IntoElement {
2373        let recent_history = self
2374            .history_store
2375            .update(cx, |this, cx| this.recent_entries(6, cx));
2376
2377        let model_registry = LanguageModelRegistry::read_global(cx);
2378
2379        let configuration_error =
2380            model_registry.configuration_error(model_registry.default_model(), cx);
2381
2382        let no_error = configuration_error.is_none();
2383        let focus_handle = self.focus_handle(cx);
2384
2385        v_flex()
2386            .size_full()
2387            .bg(cx.theme().colors().panel_background)
2388            .when(recent_history.is_empty(), |this| {
2389                this.child(
2390                    v_flex()
2391                        .size_full()
2392                        .mx_auto()
2393                        .justify_center()
2394                        .items_center()
2395                        .gap_1()
2396                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2397                        .when(no_error, |parent| {
2398                            parent
2399                                .child(h_flex().child(
2400                                    Label::new("Ask and build anything.").color(Color::Muted),
2401                                ))
2402                                .child(
2403                                    v_flex()
2404                                        .mt_2()
2405                                        .gap_1()
2406                                        .max_w_48()
2407                                        .child(
2408                                            Button::new("context", "Add Context")
2409                                                .label_size(LabelSize::Small)
2410                                                .icon(IconName::FileCode)
2411                                                .icon_position(IconPosition::Start)
2412                                                .icon_size(IconSize::Small)
2413                                                .icon_color(Color::Muted)
2414                                                .full_width()
2415                                                .key_binding(KeyBinding::for_action_in(
2416                                                    &ToggleContextPicker,
2417                                                    &focus_handle,
2418                                                    window,
2419                                                    cx,
2420                                                ))
2421                                                .on_click(|_event, window, cx| {
2422                                                    window.dispatch_action(
2423                                                        ToggleContextPicker.boxed_clone(),
2424                                                        cx,
2425                                                    )
2426                                                }),
2427                                        )
2428                                        .child(
2429                                            Button::new("mode", "Switch Model")
2430                                                .label_size(LabelSize::Small)
2431                                                .icon(IconName::DatabaseZap)
2432                                                .icon_position(IconPosition::Start)
2433                                                .icon_size(IconSize::Small)
2434                                                .icon_color(Color::Muted)
2435                                                .full_width()
2436                                                .key_binding(KeyBinding::for_action_in(
2437                                                    &ToggleModelSelector,
2438                                                    &focus_handle,
2439                                                    window,
2440                                                    cx,
2441                                                ))
2442                                                .on_click(|_event, window, cx| {
2443                                                    window.dispatch_action(
2444                                                        ToggleModelSelector.boxed_clone(),
2445                                                        cx,
2446                                                    )
2447                                                }),
2448                                        )
2449                                        .child(
2450                                            Button::new("settings", "View Settings")
2451                                                .label_size(LabelSize::Small)
2452                                                .icon(IconName::Settings)
2453                                                .icon_position(IconPosition::Start)
2454                                                .icon_size(IconSize::Small)
2455                                                .icon_color(Color::Muted)
2456                                                .full_width()
2457                                                .key_binding(KeyBinding::for_action_in(
2458                                                    &OpenConfiguration,
2459                                                    &focus_handle,
2460                                                    window,
2461                                                    cx,
2462                                                ))
2463                                                .on_click(|_event, window, cx| {
2464                                                    window.dispatch_action(
2465                                                        OpenConfiguration.boxed_clone(),
2466                                                        cx,
2467                                                    )
2468                                                }),
2469                                        ),
2470                                )
2471                        })
2472                        .when_some(configuration_error.as_ref(), |this, err| {
2473                            this.child(self.render_configuration_error(
2474                                err,
2475                                &focus_handle,
2476                                window,
2477                                cx,
2478                            ))
2479                        }),
2480                )
2481            })
2482            .when(!recent_history.is_empty(), |parent| {
2483                let focus_handle = focus_handle.clone();
2484                parent
2485                    .overflow_hidden()
2486                    .p_1p5()
2487                    .justify_end()
2488                    .gap_1()
2489                    .child(
2490                        self.render_empty_state_section_header(
2491                            "Recent",
2492                            Some(
2493                                Button::new("view-history", "View All")
2494                                    .style(ButtonStyle::Subtle)
2495                                    .label_size(LabelSize::Small)
2496                                    .key_binding(
2497                                        KeyBinding::for_action_in(
2498                                            &OpenHistory,
2499                                            &self.focus_handle(cx),
2500                                            window,
2501                                            cx,
2502                                        )
2503                                        .map(|kb| kb.size(rems_from_px(12.))),
2504                                    )
2505                                    .on_click(move |_event, window, cx| {
2506                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2507                                    })
2508                                    .into_any_element(),
2509                            ),
2510                            cx,
2511                        ),
2512                    )
2513                    .child(
2514                        v_flex()
2515                            .gap_1()
2516                            .children(recent_history.into_iter().enumerate().map(
2517                                |(index, entry)| {
2518                                    // TODO: Add keyboard navigation.
2519                                    let is_hovered =
2520                                        self.hovered_recent_history_item == Some(index);
2521                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2522                                        .hovered(is_hovered)
2523                                        .on_hover(cx.listener(
2524                                            move |this, is_hovered, _window, cx| {
2525                                                if *is_hovered {
2526                                                    this.hovered_recent_history_item = Some(index);
2527                                                } else if this.hovered_recent_history_item
2528                                                    == Some(index)
2529                                                {
2530                                                    this.hovered_recent_history_item = None;
2531                                                }
2532                                                cx.notify();
2533                                            },
2534                                        ))
2535                                        .into_any_element()
2536                                },
2537                            )),
2538                    )
2539                    .child(self.render_empty_state_section_header("Start", None, cx))
2540                    .child(
2541                        v_flex()
2542                            .p_1()
2543                            .gap_2()
2544                            .child(
2545                                h_flex()
2546                                    .w_full()
2547                                    .gap_2()
2548                                    .child(
2549                                        NewThreadButton::new(
2550                                            "new-thread-btn",
2551                                            "New Thread",
2552                                            IconName::NewThread,
2553                                        )
2554                                        .keybinding(KeyBinding::for_action_in(
2555                                            &NewThread::default(),
2556                                            &self.focus_handle(cx),
2557                                            window,
2558                                            cx,
2559                                        ))
2560                                        .on_click(
2561                                            |window, cx| {
2562                                                window.dispatch_action(
2563                                                    NewThread::default().boxed_clone(),
2564                                                    cx,
2565                                                )
2566                                            },
2567                                        ),
2568                                    )
2569                                    .child(
2570                                        NewThreadButton::new(
2571                                            "new-text-thread-btn",
2572                                            "New Text Thread",
2573                                            IconName::NewTextThread,
2574                                        )
2575                                        .keybinding(KeyBinding::for_action_in(
2576                                            &NewTextThread,
2577                                            &self.focus_handle(cx),
2578                                            window,
2579                                            cx,
2580                                        ))
2581                                        .on_click(
2582                                            |window, cx| {
2583                                                window.dispatch_action(Box::new(NewTextThread), cx)
2584                                            },
2585                                        ),
2586                                    ),
2587                            )
2588                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
2589                                this.child(
2590                                    h_flex()
2591                                        .w_full()
2592                                        .gap_2()
2593                                        .child(
2594                                            NewThreadButton::new(
2595                                                "new-gemini-thread-btn",
2596                                                "New Gemini Thread",
2597                                                IconName::AiGemini,
2598                                            )
2599                                            // .keybinding(KeyBinding::for_action_in(
2600                                            //     &OpenHistory,
2601                                            //     &self.focus_handle(cx),
2602                                            //     window,
2603                                            //     cx,
2604                                            // ))
2605                                            .on_click(
2606                                                |window, cx| {
2607                                                    window.dispatch_action(
2608                                                        Box::new(NewExternalAgentThread {
2609                                                            agent: Some(
2610                                                                crate::ExternalAgent::Gemini,
2611                                                            ),
2612                                                        }),
2613                                                        cx,
2614                                                    )
2615                                                },
2616                                            ),
2617                                        )
2618                                        .child(
2619                                            NewThreadButton::new(
2620                                                "new-claude-thread-btn",
2621                                                "New Claude Code Thread",
2622                                                IconName::AiClaude,
2623                                            )
2624                                            // .keybinding(KeyBinding::for_action_in(
2625                                            //     &OpenHistory,
2626                                            //     &self.focus_handle(cx),
2627                                            //     window,
2628                                            //     cx,
2629                                            // ))
2630                                            .on_click(
2631                                                |window, cx| {
2632                                                    window.dispatch_action(
2633                                                        Box::new(NewExternalAgentThread {
2634                                                            agent: Some(
2635                                                                crate::ExternalAgent::ClaudeCode,
2636                                                            ),
2637                                                        }),
2638                                                        cx,
2639                                                    )
2640                                                },
2641                                            ),
2642                                        ),
2643                                )
2644                            }),
2645                    )
2646                    .when_some(configuration_error.as_ref(), |this, err| {
2647                        this.child(self.render_configuration_error(err, &focus_handle, window, cx))
2648                    })
2649            })
2650    }
2651
2652    fn render_configuration_error(
2653        &self,
2654        configuration_error: &ConfigurationError,
2655        focus_handle: &FocusHandle,
2656        window: &mut Window,
2657        cx: &mut App,
2658    ) -> impl IntoElement {
2659        match configuration_error {
2660            ConfigurationError::ModelNotFound
2661            | ConfigurationError::ProviderNotAuthenticated(_)
2662            | ConfigurationError::NoProvider => Banner::new()
2663                .severity(ui::Severity::Warning)
2664                .child(Label::new(configuration_error.to_string()))
2665                .action_slot(
2666                    Button::new("settings", "Configure Provider")
2667                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2668                        .label_size(LabelSize::Small)
2669                        .key_binding(
2670                            KeyBinding::for_action_in(
2671                                &OpenConfiguration,
2672                                &focus_handle,
2673                                window,
2674                                cx,
2675                            )
2676                            .map(|kb| kb.size(rems_from_px(12.))),
2677                        )
2678                        .on_click(|_event, window, cx| {
2679                            window.dispatch_action(OpenConfiguration.boxed_clone(), cx)
2680                        }),
2681                ),
2682            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
2683                Banner::new().severity(ui::Severity::Warning).child(
2684                    h_flex().w_full().children(
2685                        provider.render_accept_terms(
2686                            LanguageModelProviderTosView::ThreadEmptyState,
2687                            cx,
2688                        ),
2689                    ),
2690                )
2691            }
2692        }
2693    }
2694
2695    fn render_tool_use_limit_reached(
2696        &self,
2697        window: &mut Window,
2698        cx: &mut Context<Self>,
2699    ) -> Option<AnyElement> {
2700        let active_thread = match &self.active_view {
2701            ActiveView::Thread { thread, .. } => thread,
2702            ActiveView::ExternalAgentThread { .. } => {
2703                return None;
2704            }
2705            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2706                return None;
2707            }
2708        };
2709
2710        let thread = active_thread.read(cx).thread().read(cx);
2711
2712        let tool_use_limit_reached = thread.tool_use_limit_reached();
2713        if !tool_use_limit_reached {
2714            return None;
2715        }
2716
2717        let model = thread.configured_model()?.model;
2718
2719        let focus_handle = self.focus_handle(cx);
2720
2721        let banner = Banner::new()
2722            .severity(ui::Severity::Info)
2723            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2724            .action_slot(
2725                h_flex()
2726                    .gap_1()
2727                    .child(
2728                        Button::new("continue-conversation", "Continue")
2729                            .layer(ElevationIndex::ModalSurface)
2730                            .label_size(LabelSize::Small)
2731                            .key_binding(
2732                                KeyBinding::for_action_in(
2733                                    &ContinueThread,
2734                                    &focus_handle,
2735                                    window,
2736                                    cx,
2737                                )
2738                                .map(|kb| kb.size(rems_from_px(10.))),
2739                            )
2740                            .on_click(cx.listener(|this, _, window, cx| {
2741                                this.continue_conversation(window, cx);
2742                            })),
2743                    )
2744                    .when(model.supports_burn_mode(), |this| {
2745                        this.child(
2746                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2747                                .style(ButtonStyle::Filled)
2748                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2749                                .layer(ElevationIndex::ModalSurface)
2750                                .label_size(LabelSize::Small)
2751                                .key_binding(
2752                                    KeyBinding::for_action_in(
2753                                        &ContinueWithBurnMode,
2754                                        &focus_handle,
2755                                        window,
2756                                        cx,
2757                                    )
2758                                    .map(|kb| kb.size(rems_from_px(10.))),
2759                                )
2760                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
2761                                .on_click({
2762                                    let active_thread = active_thread.clone();
2763                                    cx.listener(move |this, _, window, cx| {
2764                                        active_thread.update(cx, |active_thread, cx| {
2765                                            active_thread.thread().update(cx, |thread, _cx| {
2766                                                thread.set_completion_mode(CompletionMode::Burn);
2767                                            });
2768                                        });
2769                                        this.continue_conversation(window, cx);
2770                                    })
2771                                }),
2772                        )
2773                    }),
2774            );
2775
2776        Some(div().px_2().pb_2().child(banner).into_any_element())
2777    }
2778
2779    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
2780        let message = message.into();
2781
2782        IconButton::new("copy", IconName::Copy)
2783            .icon_size(IconSize::Small)
2784            .icon_color(Color::Muted)
2785            .tooltip(Tooltip::text("Copy Error Message"))
2786            .on_click(move |_, _, cx| {
2787                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
2788            })
2789    }
2790
2791    fn dismiss_error_button(
2792        &self,
2793        thread: &Entity<ActiveThread>,
2794        cx: &mut Context<Self>,
2795    ) -> impl IntoElement {
2796        IconButton::new("dismiss", IconName::Close)
2797            .icon_size(IconSize::Small)
2798            .icon_color(Color::Muted)
2799            .tooltip(Tooltip::text("Dismiss Error"))
2800            .on_click(cx.listener({
2801                let thread = thread.clone();
2802                move |_, _, _, cx| {
2803                    thread.update(cx, |this, _cx| {
2804                        this.clear_last_error();
2805                    });
2806
2807                    cx.notify();
2808                }
2809            }))
2810    }
2811
2812    fn upgrade_button(
2813        &self,
2814        thread: &Entity<ActiveThread>,
2815        cx: &mut Context<Self>,
2816    ) -> impl IntoElement {
2817        Button::new("upgrade", "Upgrade")
2818            .label_size(LabelSize::Small)
2819            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2820            .on_click(cx.listener({
2821                let thread = thread.clone();
2822                move |_, _, _, cx| {
2823                    thread.update(cx, |this, _cx| {
2824                        this.clear_last_error();
2825                    });
2826
2827                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
2828                    cx.notify();
2829                }
2830            }))
2831    }
2832
2833    fn error_callout_bg(&self, cx: &Context<Self>) -> Hsla {
2834        cx.theme().status().error.opacity(0.08)
2835    }
2836
2837    fn render_payment_required_error(
2838        &self,
2839        thread: &Entity<ActiveThread>,
2840        cx: &mut Context<Self>,
2841    ) -> AnyElement {
2842        const ERROR_MESSAGE: &str =
2843            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
2844
2845        let icon = Icon::new(IconName::XCircle)
2846            .size(IconSize::Small)
2847            .color(Color::Error);
2848
2849        div()
2850            .border_t_1()
2851            .border_color(cx.theme().colors().border)
2852            .child(
2853                Callout::new()
2854                    .icon(icon)
2855                    .title("Free Usage Exceeded")
2856                    .description(ERROR_MESSAGE)
2857                    .tertiary_action(self.upgrade_button(thread, cx))
2858                    .secondary_action(self.create_copy_button(ERROR_MESSAGE))
2859                    .primary_action(self.dismiss_error_button(thread, cx))
2860                    .bg_color(self.error_callout_bg(cx)),
2861            )
2862            .into_any_element()
2863    }
2864
2865    fn render_model_request_limit_reached_error(
2866        &self,
2867        plan: Plan,
2868        thread: &Entity<ActiveThread>,
2869        cx: &mut Context<Self>,
2870    ) -> AnyElement {
2871        let error_message = match plan {
2872            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
2873            Plan::ZedProTrial | Plan::Free => "Upgrade to Zed Pro for more prompts.",
2874        };
2875
2876        let icon = Icon::new(IconName::XCircle)
2877            .size(IconSize::Small)
2878            .color(Color::Error);
2879
2880        div()
2881            .border_t_1()
2882            .border_color(cx.theme().colors().border)
2883            .child(
2884                Callout::new()
2885                    .icon(icon)
2886                    .title("Model Prompt Limit Reached")
2887                    .description(error_message)
2888                    .tertiary_action(self.upgrade_button(thread, cx))
2889                    .secondary_action(self.create_copy_button(error_message))
2890                    .primary_action(self.dismiss_error_button(thread, cx))
2891                    .bg_color(self.error_callout_bg(cx)),
2892            )
2893            .into_any_element()
2894    }
2895
2896    fn render_error_message(
2897        &self,
2898        header: SharedString,
2899        message: SharedString,
2900        thread: &Entity<ActiveThread>,
2901        cx: &mut Context<Self>,
2902    ) -> AnyElement {
2903        let message_with_header = format!("{}\n{}", header, message);
2904
2905        let icon = Icon::new(IconName::XCircle)
2906            .size(IconSize::Small)
2907            .color(Color::Error);
2908
2909        let retry_button = Button::new("retry", "Retry")
2910            .icon(IconName::RotateCw)
2911            .icon_position(IconPosition::Start)
2912            .icon_size(IconSize::Small)
2913            .label_size(LabelSize::Small)
2914            .on_click({
2915                let thread = thread.clone();
2916                move |_, window, cx| {
2917                    thread.update(cx, |thread, cx| {
2918                        thread.clear_last_error();
2919                        thread.thread().update(cx, |thread, cx| {
2920                            thread.retry_last_completion(Some(window.window_handle()), cx);
2921                        });
2922                    });
2923                }
2924            });
2925
2926        div()
2927            .border_t_1()
2928            .border_color(cx.theme().colors().border)
2929            .child(
2930                Callout::new()
2931                    .icon(icon)
2932                    .title(header)
2933                    .description(message.clone())
2934                    .primary_action(retry_button)
2935                    .secondary_action(self.dismiss_error_button(thread, cx))
2936                    .tertiary_action(self.create_copy_button(message_with_header))
2937                    .bg_color(self.error_callout_bg(cx)),
2938            )
2939            .into_any_element()
2940    }
2941
2942    fn render_retryable_error(
2943        &self,
2944        message: SharedString,
2945        can_enable_burn_mode: bool,
2946        thread: &Entity<ActiveThread>,
2947        cx: &mut Context<Self>,
2948    ) -> AnyElement {
2949        let icon = Icon::new(IconName::XCircle)
2950            .size(IconSize::Small)
2951            .color(Color::Error);
2952
2953        let retry_button = Button::new("retry", "Retry")
2954            .icon(IconName::RotateCw)
2955            .icon_position(IconPosition::Start)
2956            .icon_size(IconSize::Small)
2957            .label_size(LabelSize::Small)
2958            .on_click({
2959                let thread = thread.clone();
2960                move |_, window, cx| {
2961                    thread.update(cx, |thread, cx| {
2962                        thread.clear_last_error();
2963                        thread.thread().update(cx, |thread, cx| {
2964                            thread.retry_last_completion(Some(window.window_handle()), cx);
2965                        });
2966                    });
2967                }
2968            });
2969
2970        let mut callout = Callout::new()
2971            .icon(icon)
2972            .title("Error")
2973            .description(message.clone())
2974            .bg_color(self.error_callout_bg(cx))
2975            .primary_action(retry_button);
2976
2977        if can_enable_burn_mode {
2978            let burn_mode_button = Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
2979                .icon(IconName::ZedBurnMode)
2980                .icon_position(IconPosition::Start)
2981                .icon_size(IconSize::Small)
2982                .label_size(LabelSize::Small)
2983                .on_click({
2984                    let thread = thread.clone();
2985                    move |_, window, cx| {
2986                        thread.update(cx, |thread, cx| {
2987                            thread.clear_last_error();
2988                            thread.thread().update(cx, |thread, cx| {
2989                                thread.enable_burn_mode_and_retry(Some(window.window_handle()), cx);
2990                            });
2991                        });
2992                    }
2993                });
2994            callout = callout.secondary_action(burn_mode_button);
2995        }
2996
2997        div()
2998            .border_t_1()
2999            .border_color(cx.theme().colors().border)
3000            .child(callout)
3001            .into_any_element()
3002    }
3003
3004    fn render_prompt_editor(
3005        &self,
3006        context_editor: &Entity<TextThreadEditor>,
3007        buffer_search_bar: &Entity<BufferSearchBar>,
3008        window: &mut Window,
3009        cx: &mut Context<Self>,
3010    ) -> Div {
3011        let mut registrar = buffer_search::DivRegistrar::new(
3012            |this, _, _cx| match &this.active_view {
3013                ActiveView::TextThread {
3014                    buffer_search_bar, ..
3015                } => Some(buffer_search_bar.clone()),
3016                _ => None,
3017            },
3018            cx,
3019        );
3020        BufferSearchBar::register(&mut registrar);
3021        registrar
3022            .into_div()
3023            .size_full()
3024            .relative()
3025            .map(|parent| {
3026                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3027                    if buffer_search_bar.is_dismissed() {
3028                        return parent;
3029                    }
3030                    parent.child(
3031                        div()
3032                            .p(DynamicSpacing::Base08.rems(cx))
3033                            .border_b_1()
3034                            .border_color(cx.theme().colors().border_variant)
3035                            .bg(cx.theme().colors().editor_background)
3036                            .child(buffer_search_bar.render(window, cx)),
3037                    )
3038                })
3039            })
3040            .child(context_editor.clone())
3041            .child(self.render_drag_target(cx))
3042    }
3043
3044    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3045        let is_local = self.project.read(cx).is_local();
3046        div()
3047            .invisible()
3048            .absolute()
3049            .top_0()
3050            .right_0()
3051            .bottom_0()
3052            .left_0()
3053            .bg(cx.theme().colors().drop_target_background)
3054            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3055            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3056            .when(is_local, |this| {
3057                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3058            })
3059            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3060                let item = tab.pane.read(cx).item_for_index(tab.ix);
3061                let project_paths = item
3062                    .and_then(|item| item.project_path(cx))
3063                    .into_iter()
3064                    .collect::<Vec<_>>();
3065                this.handle_drop(project_paths, vec![], window, cx);
3066            }))
3067            .on_drop(
3068                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3069                    let project_paths = selection
3070                        .items()
3071                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3072                        .collect::<Vec<_>>();
3073                    this.handle_drop(project_paths, vec![], window, cx);
3074                }),
3075            )
3076            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3077                let tasks = paths
3078                    .paths()
3079                    .into_iter()
3080                    .map(|path| {
3081                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
3082                    })
3083                    .collect::<Vec<_>>();
3084                cx.spawn_in(window, async move |this, cx| {
3085                    let mut paths = vec![];
3086                    let mut added_worktrees = vec![];
3087                    let opened_paths = futures::future::join_all(tasks).await;
3088                    for entry in opened_paths {
3089                        if let Some((worktree, project_path)) = entry.log_err() {
3090                            added_worktrees.push(worktree);
3091                            paths.push(project_path);
3092                        }
3093                    }
3094                    this.update_in(cx, |this, window, cx| {
3095                        this.handle_drop(paths, added_worktrees, window, cx);
3096                    })
3097                    .ok();
3098                })
3099                .detach();
3100            }))
3101    }
3102
3103    fn handle_drop(
3104        &mut self,
3105        paths: Vec<ProjectPath>,
3106        added_worktrees: Vec<Entity<Worktree>>,
3107        window: &mut Window,
3108        cx: &mut Context<Self>,
3109    ) {
3110        match &self.active_view {
3111            ActiveView::Thread { thread, .. } => {
3112                let context_store = thread.read(cx).context_store().clone();
3113                context_store.update(cx, move |context_store, cx| {
3114                    let mut tasks = Vec::new();
3115                    for project_path in &paths {
3116                        tasks.push(context_store.add_file_from_path(
3117                            project_path.clone(),
3118                            false,
3119                            cx,
3120                        ));
3121                    }
3122                    cx.background_spawn(async move {
3123                        futures::future::join_all(tasks).await;
3124                        // Need to hold onto the worktrees until they have already been used when
3125                        // opening the buffers.
3126                        drop(added_worktrees);
3127                    })
3128                    .detach();
3129                });
3130            }
3131            ActiveView::ExternalAgentThread { .. } => {
3132                unimplemented!()
3133            }
3134            ActiveView::TextThread { context_editor, .. } => {
3135                context_editor.update(cx, |context_editor, cx| {
3136                    TextThreadEditor::insert_dragged_files(
3137                        context_editor,
3138                        paths,
3139                        added_worktrees,
3140                        window,
3141                        cx,
3142                    );
3143                });
3144            }
3145            ActiveView::History | ActiveView::Configuration => {}
3146        }
3147    }
3148
3149    fn key_context(&self) -> KeyContext {
3150        let mut key_context = KeyContext::new_with_defaults();
3151        key_context.add("AgentPanel");
3152        match &self.active_view {
3153            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3154            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3155            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3156        }
3157        key_context
3158    }
3159}
3160
3161impl Render for AgentPanel {
3162    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3163        // WARNING: Changes to this element hierarchy can have
3164        // non-obvious implications to the layout of children.
3165        //
3166        // If you need to change it, please confirm:
3167        // - The message editor expands (cmd-option-esc) correctly
3168        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3169        // - Font size works as expected and can be changed with cmd-+/cmd-
3170        // - Scrolling in all views works as expected
3171        // - Files can be dropped into the panel
3172        let content = v_flex()
3173            .key_context(self.key_context())
3174            .justify_between()
3175            .size_full()
3176            .on_action(cx.listener(Self::cancel))
3177            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3178                this.new_thread(action, window, cx);
3179            }))
3180            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3181                this.open_history(window, cx);
3182            }))
3183            .on_action(cx.listener(|this, _: &OpenConfiguration, window, cx| {
3184                this.open_configuration(window, cx);
3185            }))
3186            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3187            .on_action(cx.listener(Self::deploy_rules_library))
3188            .on_action(cx.listener(Self::open_agent_diff))
3189            .on_action(cx.listener(Self::go_back))
3190            .on_action(cx.listener(Self::toggle_navigation_menu))
3191            .on_action(cx.listener(Self::toggle_options_menu))
3192            .on_action(cx.listener(Self::increase_font_size))
3193            .on_action(cx.listener(Self::decrease_font_size))
3194            .on_action(cx.listener(Self::reset_font_size))
3195            .on_action(cx.listener(Self::toggle_zoom))
3196            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3197                this.continue_conversation(window, cx);
3198            }))
3199            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3200                match &this.active_view {
3201                    ActiveView::Thread { thread, .. } => {
3202                        thread.update(cx, |active_thread, cx| {
3203                            active_thread.thread().update(cx, |thread, _cx| {
3204                                thread.set_completion_mode(CompletionMode::Burn);
3205                            });
3206                        });
3207                        this.continue_conversation(window, cx);
3208                    }
3209                    ActiveView::ExternalAgentThread { .. } => {}
3210                    ActiveView::TextThread { .. }
3211                    | ActiveView::History
3212                    | ActiveView::Configuration => {}
3213                }
3214            }))
3215            .on_action(cx.listener(Self::toggle_burn_mode))
3216            .child(self.render_toolbar(window, cx))
3217            .children(self.render_onboarding(window, cx))
3218            .children(self.render_trial_end_upsell(window, cx))
3219            .map(|parent| match &self.active_view {
3220                ActiveView::Thread {
3221                    thread,
3222                    message_editor,
3223                    ..
3224                } => parent
3225                    .relative()
3226                    .child(
3227                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3228                            self.render_thread_empty_state(window, cx)
3229                                .into_any_element()
3230                        } else {
3231                            thread.clone().into_any_element()
3232                        },
3233                    )
3234                    .children(self.render_tool_use_limit_reached(window, cx))
3235                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3236                        this.child(
3237                            div()
3238                                .child(match last_error {
3239                                    ThreadError::PaymentRequired => {
3240                                        self.render_payment_required_error(thread, cx)
3241                                    }
3242                                    ThreadError::ModelRequestLimitReached { plan } => self
3243                                        .render_model_request_limit_reached_error(plan, thread, cx),
3244                                    ThreadError::Message { header, message } => {
3245                                        self.render_error_message(header, message, thread, cx)
3246                                    }
3247                                    ThreadError::RetryableError {
3248                                        message,
3249                                        can_enable_burn_mode,
3250                                    } => self.render_retryable_error(
3251                                        message,
3252                                        can_enable_burn_mode,
3253                                        thread,
3254                                        cx,
3255                                    ),
3256                                })
3257                                .into_any(),
3258                        )
3259                    })
3260                    .child(h_flex().relative().child(message_editor.clone()).when(
3261                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3262                        |this| {
3263                            this.child(
3264                                div()
3265                                    .size_full()
3266                                    .absolute()
3267                                    .inset_0()
3268                                    .bg(cx.theme().colors().panel_background)
3269                                    .opacity(0.8)
3270                                    .block_mouse_except_scroll(),
3271                            )
3272                        },
3273                    ))
3274                    .child(self.render_drag_target(cx)),
3275                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3276                    .relative()
3277                    .child(thread_view.clone())
3278                    .child(self.render_drag_target(cx)),
3279                ActiveView::History => parent.child(self.history.clone()),
3280                ActiveView::TextThread {
3281                    context_editor,
3282                    buffer_search_bar,
3283                    ..
3284                } => {
3285                    let model_registry = LanguageModelRegistry::read_global(cx);
3286                    let configuration_error =
3287                        model_registry.configuration_error(model_registry.default_model(), cx);
3288                    parent
3289                        .map(|this| {
3290                            if !self.should_render_onboarding(cx)
3291                                && let Some(err) = configuration_error.as_ref()
3292                            {
3293                                this.child(
3294                                    div().bg(cx.theme().colors().editor_background).p_2().child(
3295                                        self.render_configuration_error(
3296                                            err,
3297                                            &self.focus_handle(cx),
3298                                            window,
3299                                            cx,
3300                                        ),
3301                                    ),
3302                                )
3303                            } else {
3304                                this
3305                            }
3306                        })
3307                        .child(self.render_prompt_editor(
3308                            context_editor,
3309                            buffer_search_bar,
3310                            window,
3311                            cx,
3312                        ))
3313                }
3314                ActiveView::Configuration => parent.children(self.configuration.clone()),
3315            });
3316
3317        match self.active_view.which_font_size_used() {
3318            WhichFontSize::AgentFont => {
3319                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3320                    .size_full()
3321                    .child(content)
3322                    .into_any()
3323            }
3324            _ => content.into_any(),
3325        }
3326    }
3327}
3328
3329struct PromptLibraryInlineAssist {
3330    workspace: WeakEntity<Workspace>,
3331}
3332
3333impl PromptLibraryInlineAssist {
3334    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3335        Self { workspace }
3336    }
3337}
3338
3339impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3340    fn assist(
3341        &self,
3342        prompt_editor: &Entity<Editor>,
3343        initial_prompt: Option<String>,
3344        window: &mut Window,
3345        cx: &mut Context<RulesLibrary>,
3346    ) {
3347        InlineAssistant::update_global(cx, |assistant, cx| {
3348            let Some(project) = self
3349                .workspace
3350                .upgrade()
3351                .map(|workspace| workspace.read(cx).project().downgrade())
3352            else {
3353                return;
3354            };
3355            let prompt_store = None;
3356            let thread_store = None;
3357            let text_thread_store = None;
3358            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3359            assistant.assist(
3360                &prompt_editor,
3361                self.workspace.clone(),
3362                context_store,
3363                project,
3364                prompt_store,
3365                thread_store,
3366                text_thread_store,
3367                initial_prompt,
3368                window,
3369                cx,
3370            )
3371        })
3372    }
3373
3374    fn focus_agent_panel(
3375        &self,
3376        workspace: &mut Workspace,
3377        window: &mut Window,
3378        cx: &mut Context<Workspace>,
3379    ) -> bool {
3380        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3381    }
3382}
3383
3384pub struct ConcreteAssistantPanelDelegate;
3385
3386impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3387    fn active_context_editor(
3388        &self,
3389        workspace: &mut Workspace,
3390        _window: &mut Window,
3391        cx: &mut Context<Workspace>,
3392    ) -> Option<Entity<TextThreadEditor>> {
3393        let panel = workspace.panel::<AgentPanel>(cx)?;
3394        panel.read(cx).active_context_editor()
3395    }
3396
3397    fn open_saved_context(
3398        &self,
3399        workspace: &mut Workspace,
3400        path: Arc<Path>,
3401        window: &mut Window,
3402        cx: &mut Context<Workspace>,
3403    ) -> Task<Result<()>> {
3404        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3405            return Task::ready(Err(anyhow!("Agent panel not found")));
3406        };
3407
3408        panel.update(cx, |panel, cx| {
3409            panel.open_saved_prompt_editor(path, window, cx)
3410        })
3411    }
3412
3413    fn open_remote_context(
3414        &self,
3415        _workspace: &mut Workspace,
3416        _context_id: assistant_context::ContextId,
3417        _window: &mut Window,
3418        _cx: &mut Context<Workspace>,
3419    ) -> Task<Result<Entity<TextThreadEditor>>> {
3420        Task::ready(Err(anyhow!("opening remote context not implemented")))
3421    }
3422
3423    fn quote_selection(
3424        &self,
3425        workspace: &mut Workspace,
3426        selection_ranges: Vec<Range<Anchor>>,
3427        buffer: Entity<MultiBuffer>,
3428        window: &mut Window,
3429        cx: &mut Context<Workspace>,
3430    ) {
3431        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3432            return;
3433        };
3434
3435        if !panel.focus_handle(cx).contains_focused(window, cx) {
3436            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3437        }
3438
3439        panel.update(cx, |_, cx| {
3440            // Wait to create a new context until the workspace is no longer
3441            // being updated.
3442            cx.defer_in(window, move |panel, window, cx| {
3443                if let Some(message_editor) = panel.active_message_editor() {
3444                    message_editor.update(cx, |message_editor, cx| {
3445                        message_editor.context_store().update(cx, |store, cx| {
3446                            let buffer = buffer.read(cx);
3447                            let selection_ranges = selection_ranges
3448                                .into_iter()
3449                                .flat_map(|range| {
3450                                    let (start_buffer, start) =
3451                                        buffer.text_anchor_for_position(range.start, cx)?;
3452                                    let (end_buffer, end) =
3453                                        buffer.text_anchor_for_position(range.end, cx)?;
3454                                    if start_buffer != end_buffer {
3455                                        return None;
3456                                    }
3457                                    Some((start_buffer, start..end))
3458                                })
3459                                .collect::<Vec<_>>();
3460
3461                            for (buffer, range) in selection_ranges {
3462                                store.add_selection(buffer, range, cx);
3463                            }
3464                        })
3465                    })
3466                } else if let Some(context_editor) = panel.active_context_editor() {
3467                    let snapshot = buffer.read(cx).snapshot(cx);
3468                    let selection_ranges = selection_ranges
3469                        .into_iter()
3470                        .map(|range| range.to_point(&snapshot))
3471                        .collect::<Vec<_>>();
3472
3473                    context_editor.update(cx, |context_editor, cx| {
3474                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3475                    });
3476                }
3477            });
3478        });
3479    }
3480}
3481
3482struct OnboardingUpsell;
3483
3484impl Dismissable for OnboardingUpsell {
3485    const KEY: &'static str = "dismissed-trial-upsell";
3486}
3487
3488struct TrialEndUpsell;
3489
3490impl Dismissable for TrialEndUpsell {
3491    const KEY: &'static str = "dismissed-trial-end-upsell";
3492}