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::{DisableAiSettings, 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            && !DisableAiSettings::get_global(cx).disable_ai
 748        {
 749            workspace.toggle_panel_focus::<Self>(window, cx);
 750        }
 751    }
 752
 753    pub(crate) fn local_timezone(&self) -> UtcOffset {
 754        self.local_timezone
 755    }
 756
 757    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 758        &self.prompt_store
 759    }
 760
 761    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 762        &self.inline_assist_context_store
 763    }
 764
 765    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 766        &self.thread_store
 767    }
 768
 769    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 770        &self.context_store
 771    }
 772
 773    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 774        match &self.active_view {
 775            ActiveView::Thread { thread, .. } => {
 776                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 777            }
 778            ActiveView::ExternalAgentThread { thread_view, .. } => {
 779                thread_view.update(cx, |thread_element, cx| thread_element.cancel(cx));
 780            }
 781            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
 782        }
 783    }
 784
 785    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 786        match &self.active_view {
 787            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 788            ActiveView::ExternalAgentThread { .. }
 789            | ActiveView::TextThread { .. }
 790            | ActiveView::History
 791            | ActiveView::Configuration => None,
 792        }
 793    }
 794
 795    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 796        // Preserve chat box text when using creating new thread
 797        let preserved_text = self
 798            .active_message_editor()
 799            .map(|editor| editor.read(cx).get_text(cx).trim().to_string());
 800
 801        let thread = self
 802            .thread_store
 803            .update(cx, |this, cx| this.create_thread(cx));
 804
 805        let context_store = cx.new(|_cx| {
 806            ContextStore::new(
 807                self.project.downgrade(),
 808                Some(self.thread_store.downgrade()),
 809            )
 810        });
 811
 812        if let Some(other_thread_id) = action.from_thread_id.clone() {
 813            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 814                this.open_thread(&other_thread_id, window, cx)
 815            });
 816
 817            cx.spawn({
 818                let context_store = context_store.clone();
 819
 820                async move |_panel, cx| {
 821                    let other_thread = other_thread_task.await?;
 822
 823                    context_store.update(cx, |this, cx| {
 824                        this.add_thread(other_thread, false, cx);
 825                    })?;
 826                    anyhow::Ok(())
 827                }
 828            })
 829            .detach_and_log_err(cx);
 830        }
 831
 832        let active_thread = cx.new(|cx| {
 833            ActiveThread::new(
 834                thread.clone(),
 835                self.thread_store.clone(),
 836                self.context_store.clone(),
 837                context_store.clone(),
 838                self.language_registry.clone(),
 839                self.workspace.clone(),
 840                window,
 841                cx,
 842            )
 843        });
 844
 845        let message_editor = cx.new(|cx| {
 846            MessageEditor::new(
 847                self.fs.clone(),
 848                self.workspace.clone(),
 849                self.user_store.clone(),
 850                context_store.clone(),
 851                self.prompt_store.clone(),
 852                self.thread_store.downgrade(),
 853                self.context_store.downgrade(),
 854                thread.clone(),
 855                window,
 856                cx,
 857            )
 858        });
 859
 860        if let Some(text) = preserved_text {
 861            message_editor.update(cx, |editor, cx| {
 862                editor.set_text(text, window, cx);
 863            });
 864        }
 865
 866        message_editor.focus_handle(cx).focus(window);
 867
 868        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 869        self.set_active_view(thread_view, window, cx);
 870
 871        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
 872    }
 873
 874    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 875        let context = self
 876            .context_store
 877            .update(cx, |context_store, cx| context_store.create(cx));
 878        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 879            .log_err()
 880            .flatten();
 881
 882        let context_editor = cx.new(|cx| {
 883            let mut editor = TextThreadEditor::for_context(
 884                context,
 885                self.fs.clone(),
 886                self.workspace.clone(),
 887                self.project.clone(),
 888                lsp_adapter_delegate,
 889                window,
 890                cx,
 891            );
 892            editor.insert_default_prompt(window, cx);
 893            editor
 894        });
 895
 896        self.set_active_view(
 897            ActiveView::prompt_editor(
 898                context_editor.clone(),
 899                self.history_store.clone(),
 900                self.language_registry.clone(),
 901                window,
 902                cx,
 903            ),
 904            window,
 905            cx,
 906        );
 907        context_editor.focus_handle(cx).focus(window);
 908    }
 909
 910    fn new_external_thread(
 911        &mut self,
 912        agent_choice: Option<crate::ExternalAgent>,
 913        window: &mut Window,
 914        cx: &mut Context<Self>,
 915    ) {
 916        let workspace = self.workspace.clone();
 917        let project = self.project.clone();
 918        let message_history = self.acp_message_history.clone();
 919
 920        const LAST_USED_EXTERNAL_AGENT_KEY: &str = "agent_panel__last_used_external_agent";
 921
 922        #[derive(Default, Serialize, Deserialize)]
 923        struct LastUsedExternalAgent {
 924            agent: crate::ExternalAgent,
 925        }
 926
 927        cx.spawn_in(window, async move |this, cx| {
 928            let server: Rc<dyn AgentServer> = match agent_choice {
 929                Some(agent) => {
 930                    cx.background_spawn(async move {
 931                        if let Some(serialized) =
 932                            serde_json::to_string(&LastUsedExternalAgent { agent }).log_err()
 933                        {
 934                            KEY_VALUE_STORE
 935                                .write_kvp(LAST_USED_EXTERNAL_AGENT_KEY.to_string(), serialized)
 936                                .await
 937                                .log_err();
 938                        }
 939                    })
 940                    .detach();
 941
 942                    agent.server()
 943                }
 944                None => cx
 945                    .background_spawn(async move {
 946                        KEY_VALUE_STORE.read_kvp(LAST_USED_EXTERNAL_AGENT_KEY)
 947                    })
 948                    .await
 949                    .log_err()
 950                    .flatten()
 951                    .and_then(|value| {
 952                        serde_json::from_str::<LastUsedExternalAgent>(&value).log_err()
 953                    })
 954                    .unwrap_or_default()
 955                    .agent
 956                    .server(),
 957            };
 958
 959            this.update_in(cx, |this, window, cx| {
 960                let thread_view = cx.new(|cx| {
 961                    crate::acp::AcpThreadView::new(
 962                        server,
 963                        workspace.clone(),
 964                        project,
 965                        message_history,
 966                        MIN_EDITOR_LINES,
 967                        Some(MAX_EDITOR_LINES),
 968                        window,
 969                        cx,
 970                    )
 971                });
 972
 973                this.set_active_view(
 974                    ActiveView::ExternalAgentThread {
 975                        thread_view: thread_view.clone(),
 976                    },
 977                    window,
 978                    cx,
 979                );
 980            })
 981        })
 982        .detach_and_log_err(cx);
 983    }
 984
 985    fn deploy_rules_library(
 986        &mut self,
 987        action: &OpenRulesLibrary,
 988        _window: &mut Window,
 989        cx: &mut Context<Self>,
 990    ) {
 991        open_rules_library(
 992            self.language_registry.clone(),
 993            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
 994            Rc::new(|| {
 995                Rc::new(SlashCommandCompletionProvider::new(
 996                    Arc::new(SlashCommandWorkingSet::default()),
 997                    None,
 998                    None,
 999                ))
1000            }),
1001            action
1002                .prompt_to_select
1003                .map(|uuid| UserPromptId(uuid).into()),
1004            cx,
1005        )
1006        .detach_and_log_err(cx);
1007    }
1008
1009    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1010        if matches!(self.active_view, ActiveView::History) {
1011            if let Some(previous_view) = self.previous_view.take() {
1012                self.set_active_view(previous_view, window, cx);
1013            }
1014        } else {
1015            self.thread_store
1016                .update(cx, |thread_store, cx| thread_store.reload(cx))
1017                .detach_and_log_err(cx);
1018            self.set_active_view(ActiveView::History, window, cx);
1019        }
1020        cx.notify();
1021    }
1022
1023    pub(crate) fn open_saved_prompt_editor(
1024        &mut self,
1025        path: Arc<Path>,
1026        window: &mut Window,
1027        cx: &mut Context<Self>,
1028    ) -> Task<Result<()>> {
1029        let context = self
1030            .context_store
1031            .update(cx, |store, cx| store.open_local_context(path, cx));
1032        cx.spawn_in(window, async move |this, cx| {
1033            let context = context.await?;
1034            this.update_in(cx, |this, window, cx| {
1035                this.open_prompt_editor(context, window, cx);
1036            })
1037        })
1038    }
1039
1040    pub(crate) fn open_prompt_editor(
1041        &mut self,
1042        context: Entity<AssistantContext>,
1043        window: &mut Window,
1044        cx: &mut Context<Self>,
1045    ) {
1046        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
1047            .log_err()
1048            .flatten();
1049        let editor = cx.new(|cx| {
1050            TextThreadEditor::for_context(
1051                context,
1052                self.fs.clone(),
1053                self.workspace.clone(),
1054                self.project.clone(),
1055                lsp_adapter_delegate,
1056                window,
1057                cx,
1058            )
1059        });
1060        self.set_active_view(
1061            ActiveView::prompt_editor(
1062                editor.clone(),
1063                self.history_store.clone(),
1064                self.language_registry.clone(),
1065                window,
1066                cx,
1067            ),
1068            window,
1069            cx,
1070        );
1071    }
1072
1073    pub(crate) fn open_thread_by_id(
1074        &mut self,
1075        thread_id: &ThreadId,
1076        window: &mut Window,
1077        cx: &mut Context<Self>,
1078    ) -> Task<Result<()>> {
1079        let open_thread_task = self
1080            .thread_store
1081            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
1082        cx.spawn_in(window, async move |this, cx| {
1083            let thread = open_thread_task.await?;
1084            this.update_in(cx, |this, window, cx| {
1085                this.open_thread(thread, window, cx);
1086                anyhow::Ok(())
1087            })??;
1088            Ok(())
1089        })
1090    }
1091
1092    pub(crate) fn open_thread(
1093        &mut self,
1094        thread: Entity<Thread>,
1095        window: &mut Window,
1096        cx: &mut Context<Self>,
1097    ) {
1098        let context_store = cx.new(|_cx| {
1099            ContextStore::new(
1100                self.project.downgrade(),
1101                Some(self.thread_store.downgrade()),
1102            )
1103        });
1104
1105        let active_thread = cx.new(|cx| {
1106            ActiveThread::new(
1107                thread.clone(),
1108                self.thread_store.clone(),
1109                self.context_store.clone(),
1110                context_store.clone(),
1111                self.language_registry.clone(),
1112                self.workspace.clone(),
1113                window,
1114                cx,
1115            )
1116        });
1117
1118        let message_editor = cx.new(|cx| {
1119            MessageEditor::new(
1120                self.fs.clone(),
1121                self.workspace.clone(),
1122                self.user_store.clone(),
1123                context_store,
1124                self.prompt_store.clone(),
1125                self.thread_store.downgrade(),
1126                self.context_store.downgrade(),
1127                thread.clone(),
1128                window,
1129                cx,
1130            )
1131        });
1132        message_editor.focus_handle(cx).focus(window);
1133
1134        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1135        self.set_active_view(thread_view, window, cx);
1136        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
1137    }
1138
1139    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1140        match self.active_view {
1141            ActiveView::Configuration | ActiveView::History => {
1142                if let Some(previous_view) = self.previous_view.take() {
1143                    self.active_view = previous_view;
1144
1145                    match &self.active_view {
1146                        ActiveView::Thread { message_editor, .. } => {
1147                            message_editor.focus_handle(cx).focus(window);
1148                        }
1149                        ActiveView::ExternalAgentThread { thread_view } => {
1150                            thread_view.focus_handle(cx).focus(window);
1151                        }
1152                        ActiveView::TextThread { context_editor, .. } => {
1153                            context_editor.focus_handle(cx).focus(window);
1154                        }
1155                        ActiveView::History | ActiveView::Configuration => {}
1156                    }
1157                }
1158                cx.notify();
1159            }
1160            _ => {}
1161        }
1162    }
1163
1164    pub fn toggle_navigation_menu(
1165        &mut self,
1166        _: &ToggleNavigationMenu,
1167        window: &mut Window,
1168        cx: &mut Context<Self>,
1169    ) {
1170        self.assistant_navigation_menu_handle.toggle(window, cx);
1171    }
1172
1173    pub fn toggle_options_menu(
1174        &mut self,
1175        _: &ToggleOptionsMenu,
1176        window: &mut Window,
1177        cx: &mut Context<Self>,
1178    ) {
1179        self.agent_panel_menu_handle.toggle(window, cx);
1180    }
1181
1182    pub fn increase_font_size(
1183        &mut self,
1184        action: &IncreaseBufferFontSize,
1185        _: &mut Window,
1186        cx: &mut Context<Self>,
1187    ) {
1188        self.handle_font_size_action(action.persist, px(1.0), cx);
1189    }
1190
1191    pub fn decrease_font_size(
1192        &mut self,
1193        action: &DecreaseBufferFontSize,
1194        _: &mut Window,
1195        cx: &mut Context<Self>,
1196    ) {
1197        self.handle_font_size_action(action.persist, px(-1.0), cx);
1198    }
1199
1200    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1201        match self.active_view.which_font_size_used() {
1202            WhichFontSize::AgentFont => {
1203                if persist {
1204                    update_settings_file::<ThemeSettings>(
1205                        self.fs.clone(),
1206                        cx,
1207                        move |settings, cx| {
1208                            let agent_font_size =
1209                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1210                            let _ = settings
1211                                .agent_font_size
1212                                .insert(theme::clamp_font_size(agent_font_size).0);
1213                        },
1214                    );
1215                } else {
1216                    theme::adjust_agent_font_size(cx, |size| {
1217                        *size += delta;
1218                    });
1219                }
1220            }
1221            WhichFontSize::BufferFont => {
1222                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1223                // default handler that changes that font size.
1224                cx.propagate();
1225            }
1226            WhichFontSize::None => {}
1227        }
1228    }
1229
1230    pub fn reset_font_size(
1231        &mut self,
1232        action: &ResetBufferFontSize,
1233        _: &mut Window,
1234        cx: &mut Context<Self>,
1235    ) {
1236        if action.persist {
1237            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1238                settings.agent_font_size = None;
1239            });
1240        } else {
1241            theme::reset_agent_font_size(cx);
1242        }
1243    }
1244
1245    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1246        if self.zoomed {
1247            cx.emit(PanelEvent::ZoomOut);
1248        } else {
1249            if !self.focus_handle(cx).contains_focused(window, cx) {
1250                cx.focus_self(window);
1251            }
1252            cx.emit(PanelEvent::ZoomIn);
1253        }
1254    }
1255
1256    pub fn open_agent_diff(
1257        &mut self,
1258        _: &OpenAgentDiff,
1259        window: &mut Window,
1260        cx: &mut Context<Self>,
1261    ) {
1262        match &self.active_view {
1263            ActiveView::Thread { thread, .. } => {
1264                let thread = thread.read(cx).thread().clone();
1265                self.workspace
1266                    .update(cx, |workspace, cx| {
1267                        AgentDiffPane::deploy_in_workspace(
1268                            AgentDiffThread::Native(thread),
1269                            workspace,
1270                            window,
1271                            cx,
1272                        )
1273                    })
1274                    .log_err();
1275            }
1276            ActiveView::ExternalAgentThread { .. }
1277            | ActiveView::TextThread { .. }
1278            | ActiveView::History
1279            | ActiveView::Configuration => {}
1280        }
1281    }
1282
1283    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1284        let context_server_store = self.project.read(cx).context_server_store();
1285        let tools = self.thread_store.read(cx).tools();
1286        let fs = self.fs.clone();
1287
1288        self.set_active_view(ActiveView::Configuration, window, cx);
1289        self.configuration = Some(cx.new(|cx| {
1290            AgentConfiguration::new(
1291                fs,
1292                context_server_store,
1293                tools,
1294                self.language_registry.clone(),
1295                self.workspace.clone(),
1296                window,
1297                cx,
1298            )
1299        }));
1300
1301        if let Some(configuration) = self.configuration.as_ref() {
1302            self.configuration_subscription = Some(cx.subscribe_in(
1303                configuration,
1304                window,
1305                Self::handle_agent_configuration_event,
1306            ));
1307
1308            configuration.focus_handle(cx).focus(window);
1309        }
1310    }
1311
1312    pub(crate) fn open_active_thread_as_markdown(
1313        &mut self,
1314        _: &OpenActiveThreadAsMarkdown,
1315        window: &mut Window,
1316        cx: &mut Context<Self>,
1317    ) {
1318        let Some(workspace) = self.workspace.upgrade() else {
1319            return;
1320        };
1321
1322        match &self.active_view {
1323            ActiveView::Thread { thread, .. } => {
1324                active_thread::open_active_thread_as_markdown(
1325                    thread.read(cx).thread().clone(),
1326                    workspace,
1327                    window,
1328                    cx,
1329                )
1330                .detach_and_log_err(cx);
1331            }
1332            ActiveView::ExternalAgentThread { thread_view } => {
1333                thread_view
1334                    .update(cx, |thread_view, cx| {
1335                        thread_view.open_thread_as_markdown(workspace, window, cx)
1336                    })
1337                    .detach_and_log_err(cx);
1338            }
1339            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1340        }
1341    }
1342
1343    fn handle_agent_configuration_event(
1344        &mut self,
1345        _entity: &Entity<AgentConfiguration>,
1346        event: &AssistantConfigurationEvent,
1347        window: &mut Window,
1348        cx: &mut Context<Self>,
1349    ) {
1350        match event {
1351            AssistantConfigurationEvent::NewThread(provider) => {
1352                if LanguageModelRegistry::read_global(cx)
1353                    .default_model()
1354                    .map_or(true, |model| model.provider.id() != provider.id())
1355                {
1356                    if let Some(model) = provider.default_model(cx) {
1357                        update_settings_file::<AgentSettings>(
1358                            self.fs.clone(),
1359                            cx,
1360                            move |settings, _| settings.set_model(model),
1361                        );
1362                    }
1363                }
1364
1365                self.new_thread(&NewThread::default(), window, cx);
1366                if let Some((thread, model)) =
1367                    self.active_thread(cx).zip(provider.default_model(cx))
1368                {
1369                    thread.update(cx, |thread, cx| {
1370                        thread.set_configured_model(
1371                            Some(ConfiguredModel {
1372                                provider: provider.clone(),
1373                                model,
1374                            }),
1375                            cx,
1376                        );
1377                    });
1378                }
1379            }
1380        }
1381    }
1382
1383    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<Thread>> {
1384        match &self.active_view {
1385            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1386            _ => None,
1387        }
1388    }
1389
1390    pub(crate) fn delete_thread(
1391        &mut self,
1392        thread_id: &ThreadId,
1393        cx: &mut Context<Self>,
1394    ) -> Task<Result<()>> {
1395        self.thread_store
1396            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1397    }
1398
1399    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1400        let ActiveView::Thread { thread, .. } = &self.active_view else {
1401            return;
1402        };
1403
1404        let thread_state = thread.read(cx).thread().read(cx);
1405        if !thread_state.tool_use_limit_reached() {
1406            return;
1407        }
1408
1409        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1410        if let Some(model) = model {
1411            thread.update(cx, |active_thread, cx| {
1412                active_thread.thread().update(cx, |thread, cx| {
1413                    thread.insert_invisible_continue_message(cx);
1414                    thread.advance_prompt_id();
1415                    thread.send_to_model(
1416                        model,
1417                        CompletionIntent::UserPrompt,
1418                        Some(window.window_handle()),
1419                        cx,
1420                    );
1421                });
1422            });
1423        } else {
1424            log::warn!("No configured model available for continuation");
1425        }
1426    }
1427
1428    fn toggle_burn_mode(
1429        &mut self,
1430        _: &ToggleBurnMode,
1431        _window: &mut Window,
1432        cx: &mut Context<Self>,
1433    ) {
1434        let ActiveView::Thread { thread, .. } = &self.active_view else {
1435            return;
1436        };
1437
1438        thread.update(cx, |active_thread, cx| {
1439            active_thread.thread().update(cx, |thread, _cx| {
1440                let current_mode = thread.completion_mode();
1441
1442                thread.set_completion_mode(match current_mode {
1443                    CompletionMode::Burn => CompletionMode::Normal,
1444                    CompletionMode::Normal => CompletionMode::Burn,
1445                });
1446            });
1447        });
1448    }
1449
1450    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1451        match &self.active_view {
1452            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1453            _ => None,
1454        }
1455    }
1456
1457    pub(crate) fn delete_context(
1458        &mut self,
1459        path: Arc<Path>,
1460        cx: &mut Context<Self>,
1461    ) -> Task<Result<()>> {
1462        self.context_store
1463            .update(cx, |this, cx| this.delete_local_context(path, cx))
1464    }
1465
1466    fn set_active_view(
1467        &mut self,
1468        new_view: ActiveView,
1469        window: &mut Window,
1470        cx: &mut Context<Self>,
1471    ) {
1472        let current_is_history = matches!(self.active_view, ActiveView::History);
1473        let new_is_history = matches!(new_view, ActiveView::History);
1474
1475        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1476        let new_is_config = matches!(new_view, ActiveView::Configuration);
1477
1478        let current_is_special = current_is_history || current_is_config;
1479        let new_is_special = new_is_history || new_is_config;
1480
1481        match &self.active_view {
1482            ActiveView::Thread { thread, .. } => {
1483                let thread = thread.read(cx);
1484                if thread.is_empty() {
1485                    let id = thread.thread().read(cx).id().clone();
1486                    self.history_store.update(cx, |store, cx| {
1487                        store.remove_recently_opened_thread(id, cx);
1488                    });
1489                }
1490            }
1491            _ => {}
1492        }
1493
1494        match &new_view {
1495            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1496                let id = thread.read(cx).thread().read(cx).id().clone();
1497                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1498            }),
1499            ActiveView::TextThread { context_editor, .. } => {
1500                self.history_store.update(cx, |store, cx| {
1501                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1502                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1503                    }
1504                })
1505            }
1506            ActiveView::ExternalAgentThread { .. } => {}
1507            ActiveView::History | ActiveView::Configuration => {}
1508        }
1509
1510        if current_is_special && !new_is_special {
1511            self.active_view = new_view;
1512        } else if !current_is_special && new_is_special {
1513            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1514        } else {
1515            if !new_is_special {
1516                self.previous_view = None;
1517            }
1518            self.active_view = new_view;
1519        }
1520
1521        self.acp_message_history.borrow_mut().reset_position();
1522
1523        self.focus_handle(cx).focus(window);
1524    }
1525
1526    fn populate_recently_opened_menu_section(
1527        mut menu: ContextMenu,
1528        panel: Entity<Self>,
1529        cx: &mut Context<ContextMenu>,
1530    ) -> ContextMenu {
1531        let entries = panel
1532            .read(cx)
1533            .history_store
1534            .read(cx)
1535            .recently_opened_entries(cx);
1536
1537        if entries.is_empty() {
1538            return menu;
1539        }
1540
1541        menu = menu.header("Recently Opened");
1542
1543        for entry in entries {
1544            let title = entry.title().clone();
1545            let id = entry.id();
1546
1547            menu = menu.entry_with_end_slot_on_hover(
1548                title,
1549                None,
1550                {
1551                    let panel = panel.downgrade();
1552                    let id = id.clone();
1553                    move |window, cx| {
1554                        let id = id.clone();
1555                        panel
1556                            .update(cx, move |this, cx| match id {
1557                                HistoryEntryId::Thread(id) => this
1558                                    .open_thread_by_id(&id, window, cx)
1559                                    .detach_and_log_err(cx),
1560                                HistoryEntryId::Context(path) => this
1561                                    .open_saved_prompt_editor(path.clone(), window, cx)
1562                                    .detach_and_log_err(cx),
1563                            })
1564                            .ok();
1565                    }
1566                },
1567                IconName::Close,
1568                "Close Entry".into(),
1569                {
1570                    let panel = panel.downgrade();
1571                    let id = id.clone();
1572                    move |_window, cx| {
1573                        panel
1574                            .update(cx, |this, cx| {
1575                                this.history_store.update(cx, |history_store, cx| {
1576                                    history_store.remove_recently_opened_entry(&id, cx);
1577                                });
1578                            })
1579                            .ok();
1580                    }
1581                },
1582            );
1583        }
1584
1585        menu = menu.separator();
1586
1587        menu
1588    }
1589}
1590
1591impl Focusable for AgentPanel {
1592    fn focus_handle(&self, cx: &App) -> FocusHandle {
1593        match &self.active_view {
1594            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1595            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1596            ActiveView::History => self.history.focus_handle(cx),
1597            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1598            ActiveView::Configuration => {
1599                if let Some(configuration) = self.configuration.as_ref() {
1600                    configuration.focus_handle(cx)
1601                } else {
1602                    cx.focus_handle()
1603                }
1604            }
1605        }
1606    }
1607}
1608
1609fn agent_panel_dock_position(cx: &App) -> DockPosition {
1610    match AgentSettings::get_global(cx).dock {
1611        AgentDockPosition::Left => DockPosition::Left,
1612        AgentDockPosition::Bottom => DockPosition::Bottom,
1613        AgentDockPosition::Right => DockPosition::Right,
1614    }
1615}
1616
1617impl EventEmitter<PanelEvent> for AgentPanel {}
1618
1619impl Panel for AgentPanel {
1620    fn persistent_name() -> &'static str {
1621        "AgentPanel"
1622    }
1623
1624    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1625        agent_panel_dock_position(cx)
1626    }
1627
1628    fn position_is_valid(&self, position: DockPosition) -> bool {
1629        position != DockPosition::Bottom
1630    }
1631
1632    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1633        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1634            let dock = match position {
1635                DockPosition::Left => AgentDockPosition::Left,
1636                DockPosition::Bottom => AgentDockPosition::Bottom,
1637                DockPosition::Right => AgentDockPosition::Right,
1638            };
1639            settings.set_dock(dock);
1640        });
1641    }
1642
1643    fn size(&self, window: &Window, cx: &App) -> Pixels {
1644        let settings = AgentSettings::get_global(cx);
1645        match self.position(window, cx) {
1646            DockPosition::Left | DockPosition::Right => {
1647                self.width.unwrap_or(settings.default_width)
1648            }
1649            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1650        }
1651    }
1652
1653    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1654        match self.position(window, cx) {
1655            DockPosition::Left | DockPosition::Right => self.width = size,
1656            DockPosition::Bottom => self.height = size,
1657        }
1658        self.serialize(cx);
1659        cx.notify();
1660    }
1661
1662    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1663
1664    fn remote_id() -> Option<proto::PanelId> {
1665        Some(proto::PanelId::AssistantPanel)
1666    }
1667
1668    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1669        (self.enabled(cx)
1670            && AgentSettings::get_global(cx).button
1671            && !DisableAiSettings::get_global(cx).disable_ai)
1672            .then_some(IconName::ZedAssistant)
1673    }
1674
1675    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1676        Some("Agent Panel")
1677    }
1678
1679    fn toggle_action(&self) -> Box<dyn Action> {
1680        Box::new(ToggleFocus)
1681    }
1682
1683    fn activation_priority(&self) -> u32 {
1684        3
1685    }
1686
1687    fn enabled(&self, cx: &App) -> bool {
1688        AgentSettings::get_global(cx).enabled
1689    }
1690
1691    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1692        self.zoomed
1693    }
1694
1695    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1696        self.zoomed = zoomed;
1697        cx.notify();
1698    }
1699}
1700
1701impl AgentPanel {
1702    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1703        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1704
1705        let content = match &self.active_view {
1706            ActiveView::Thread {
1707                thread: active_thread,
1708                change_title_editor,
1709                ..
1710            } => {
1711                let state = {
1712                    let active_thread = active_thread.read(cx);
1713                    if active_thread.is_empty() {
1714                        &ThreadSummary::Pending
1715                    } else {
1716                        active_thread.summary(cx)
1717                    }
1718                };
1719
1720                match state {
1721                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1722                        .truncate()
1723                        .into_any_element(),
1724                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1725                        .truncate()
1726                        .into_any_element(),
1727                    ThreadSummary::Ready(_) => div()
1728                        .w_full()
1729                        .child(change_title_editor.clone())
1730                        .into_any_element(),
1731                    ThreadSummary::Error => h_flex()
1732                        .w_full()
1733                        .child(change_title_editor.clone())
1734                        .child(
1735                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1736                                .on_click({
1737                                    let active_thread = active_thread.clone();
1738                                    move |_, _window, cx| {
1739                                        active_thread.update(cx, |thread, cx| {
1740                                            thread.regenerate_summary(cx);
1741                                        });
1742                                    }
1743                                })
1744                                .tooltip(move |_window, cx| {
1745                                    cx.new(|_| {
1746                                        Tooltip::new("Failed to generate title")
1747                                            .meta("Click to try again")
1748                                    })
1749                                    .into()
1750                                }),
1751                        )
1752                        .into_any_element(),
1753                }
1754            }
1755            ActiveView::ExternalAgentThread { thread_view } => {
1756                Label::new(thread_view.read(cx).title(cx))
1757                    .truncate()
1758                    .into_any_element()
1759            }
1760            ActiveView::TextThread {
1761                title_editor,
1762                context_editor,
1763                ..
1764            } => {
1765                let summary = context_editor.read(cx).context().read(cx).summary();
1766
1767                match summary {
1768                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1769                        .truncate()
1770                        .into_any_element(),
1771                    ContextSummary::Content(summary) => {
1772                        if summary.done {
1773                            div()
1774                                .w_full()
1775                                .child(title_editor.clone())
1776                                .into_any_element()
1777                        } else {
1778                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
1779                                .truncate()
1780                                .into_any_element()
1781                        }
1782                    }
1783                    ContextSummary::Error => h_flex()
1784                        .w_full()
1785                        .child(title_editor.clone())
1786                        .child(
1787                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1788                                .on_click({
1789                                    let context_editor = context_editor.clone();
1790                                    move |_, _window, cx| {
1791                                        context_editor.update(cx, |context_editor, cx| {
1792                                            context_editor.regenerate_summary(cx);
1793                                        });
1794                                    }
1795                                })
1796                                .tooltip(move |_window, cx| {
1797                                    cx.new(|_| {
1798                                        Tooltip::new("Failed to generate title")
1799                                            .meta("Click to try again")
1800                                    })
1801                                    .into()
1802                                }),
1803                        )
1804                        .into_any_element(),
1805                }
1806            }
1807            ActiveView::History => Label::new("History").truncate().into_any_element(),
1808            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
1809        };
1810
1811        h_flex()
1812            .key_context("TitleEditor")
1813            .id("TitleEditor")
1814            .flex_grow()
1815            .w_full()
1816            .max_w_full()
1817            .overflow_x_scroll()
1818            .child(content)
1819            .into_any()
1820    }
1821
1822    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1823        let user_store = self.user_store.read(cx);
1824        let usage = user_store.model_request_usage();
1825
1826        let account_url = zed_urls::account_url(cx);
1827
1828        let focus_handle = self.focus_handle(cx);
1829
1830        let go_back_button = div().child(
1831            IconButton::new("go-back", IconName::ArrowLeft)
1832                .icon_size(IconSize::Small)
1833                .on_click(cx.listener(|this, _, window, cx| {
1834                    this.go_back(&workspace::GoBack, window, cx);
1835                }))
1836                .tooltip({
1837                    let focus_handle = focus_handle.clone();
1838                    move |window, cx| {
1839                        Tooltip::for_action_in(
1840                            "Go Back",
1841                            &workspace::GoBack,
1842                            &focus_handle,
1843                            window,
1844                            cx,
1845                        )
1846                    }
1847                }),
1848        );
1849
1850        let recent_entries_menu = div().child(
1851            PopoverMenu::new("agent-nav-menu")
1852                .trigger_with_tooltip(
1853                    IconButton::new("agent-nav-menu", IconName::MenuAlt)
1854                        .icon_size(IconSize::Small)
1855                        .style(ui::ButtonStyle::Subtle),
1856                    {
1857                        let focus_handle = focus_handle.clone();
1858                        move |window, cx| {
1859                            Tooltip::for_action_in(
1860                                "Toggle Panel Menu",
1861                                &ToggleNavigationMenu,
1862                                &focus_handle,
1863                                window,
1864                                cx,
1865                            )
1866                        }
1867                    },
1868                )
1869                .anchor(Corner::TopLeft)
1870                .with_handle(self.assistant_navigation_menu_handle.clone())
1871                .menu({
1872                    let menu = self.assistant_navigation_menu.clone();
1873                    move |window, cx| {
1874                        if let Some(menu) = menu.as_ref() {
1875                            menu.update(cx, |_, cx| {
1876                                cx.defer_in(window, |menu, window, cx| {
1877                                    menu.rebuild(window, cx);
1878                                });
1879                            })
1880                        }
1881                        menu.clone()
1882                    }
1883                }),
1884        );
1885
1886        let zoom_in_label = if self.is_zoomed(window, cx) {
1887            "Zoom Out"
1888        } else {
1889            "Zoom In"
1890        };
1891
1892        let active_thread = match &self.active_view {
1893            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1894            ActiveView::ExternalAgentThread { .. }
1895            | ActiveView::TextThread { .. }
1896            | ActiveView::History
1897            | ActiveView::Configuration => None,
1898        };
1899
1900        let new_thread_menu = PopoverMenu::new("new_thread_menu")
1901            .trigger_with_tooltip(
1902                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
1903                Tooltip::text("New Thread…"),
1904            )
1905            .anchor(Corner::TopRight)
1906            .with_handle(self.new_thread_menu_handle.clone())
1907            .menu(move |window, cx| {
1908                let active_thread = active_thread.clone();
1909                Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
1910                    menu = menu
1911                        .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1912                            this.header("Zed Agent")
1913                        })
1914                        .item(
1915                            ContextMenuEntry::new("New Thread")
1916                                .icon(IconName::NewThread)
1917                                .icon_color(Color::Muted)
1918                                .handler(move |window, cx| {
1919                                    window.dispatch_action(NewThread::default().boxed_clone(), cx);
1920                                }),
1921                        )
1922                        .item(
1923                            ContextMenuEntry::new("New Text Thread")
1924                                .icon(IconName::NewTextThread)
1925                                .icon_color(Color::Muted)
1926                                .handler(move |window, cx| {
1927                                    window.dispatch_action(NewTextThread.boxed_clone(), cx);
1928                                }),
1929                        )
1930                        .when_some(active_thread, |this, active_thread| {
1931                            let thread = active_thread.read(cx);
1932
1933                            if !thread.is_empty() {
1934                                let thread_id = thread.id().clone();
1935                                this.item(
1936                                    ContextMenuEntry::new("New From Summary")
1937                                        .icon(IconName::NewFromSummary)
1938                                        .icon_color(Color::Muted)
1939                                        .handler(move |window, cx| {
1940                                            window.dispatch_action(
1941                                                Box::new(NewThread {
1942                                                    from_thread_id: Some(thread_id.clone()),
1943                                                }),
1944                                                cx,
1945                                            );
1946                                        }),
1947                                )
1948                            } else {
1949                                this
1950                            }
1951                        })
1952                        .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1953                            this.separator()
1954                                .header("External Agents")
1955                                .item(
1956                                    ContextMenuEntry::new("New Gemini Thread")
1957                                        .icon(IconName::AiGemini)
1958                                        .icon_color(Color::Muted)
1959                                        .handler(move |window, cx| {
1960                                            window.dispatch_action(
1961                                                NewExternalAgentThread {
1962                                                    agent: Some(crate::ExternalAgent::Gemini),
1963                                                }
1964                                                .boxed_clone(),
1965                                                cx,
1966                                            );
1967                                        }),
1968                                )
1969                                .item(
1970                                    ContextMenuEntry::new("New Claude Code Thread")
1971                                        .icon(IconName::AiClaude)
1972                                        .icon_color(Color::Muted)
1973                                        .handler(move |window, cx| {
1974                                            window.dispatch_action(
1975                                                NewExternalAgentThread {
1976                                                    agent: Some(crate::ExternalAgent::ClaudeCode),
1977                                                }
1978                                                .boxed_clone(),
1979                                                cx,
1980                                            );
1981                                        }),
1982                                )
1983                        });
1984                    menu
1985                }))
1986            });
1987
1988        let agent_panel_menu = PopoverMenu::new("agent-options-menu")
1989            .trigger_with_tooltip(
1990                IconButton::new("agent-options-menu", IconName::Ellipsis)
1991                    .icon_size(IconSize::Small),
1992                {
1993                    let focus_handle = focus_handle.clone();
1994                    move |window, cx| {
1995                        Tooltip::for_action_in(
1996                            "Toggle Agent Menu",
1997                            &ToggleOptionsMenu,
1998                            &focus_handle,
1999                            window,
2000                            cx,
2001                        )
2002                    }
2003                },
2004            )
2005            .anchor(Corner::TopRight)
2006            .with_handle(self.agent_panel_menu_handle.clone())
2007            .menu(move |window, cx| {
2008                Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2009                    if let Some(usage) = usage {
2010                        menu = menu
2011                            .header_with_link("Prompt Usage", "Manage", account_url.clone())
2012                            .custom_entry(
2013                                move |_window, cx| {
2014                                    let used_percentage = match usage.limit {
2015                                        UsageLimit::Limited(limit) => {
2016                                            Some((usage.amount as f32 / limit as f32) * 100.)
2017                                        }
2018                                        UsageLimit::Unlimited => None,
2019                                    };
2020
2021                                    h_flex()
2022                                        .flex_1()
2023                                        .gap_1p5()
2024                                        .children(used_percentage.map(|percent| {
2025                                            ProgressBar::new("usage", percent, 100., cx)
2026                                        }))
2027                                        .child(
2028                                            Label::new(match usage.limit {
2029                                                UsageLimit::Limited(limit) => {
2030                                                    format!("{} / {limit}", usage.amount)
2031                                                }
2032                                                UsageLimit::Unlimited => {
2033                                                    format!("{} / ∞", usage.amount)
2034                                                }
2035                                            })
2036                                            .size(LabelSize::Small)
2037                                            .color(Color::Muted),
2038                                        )
2039                                        .into_any_element()
2040                                },
2041                                move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2042                            )
2043                            .separator()
2044                    }
2045
2046                    menu = menu
2047                        .header("MCP Servers")
2048                        .action(
2049                            "View Server Extensions",
2050                            Box::new(zed_actions::Extensions {
2051                                category_filter: Some(
2052                                    zed_actions::ExtensionCategoryFilter::ContextServers,
2053                                ),
2054                                id: None,
2055                            }),
2056                        )
2057                        .action("Add Custom Server…", Box::new(AddContextServer))
2058                        .separator();
2059
2060                    menu = menu
2061                        .action("Rules…", Box::new(OpenRulesLibrary::default()))
2062                        .action("Settings", Box::new(OpenConfiguration))
2063                        .action(zoom_in_label, Box::new(ToggleZoom));
2064                    menu
2065                }))
2066            });
2067
2068        h_flex()
2069            .id("assistant-toolbar")
2070            .h(Tab::container_height(cx))
2071            .max_w_full()
2072            .flex_none()
2073            .justify_between()
2074            .gap_2()
2075            .bg(cx.theme().colors().tab_bar_background)
2076            .border_b_1()
2077            .border_color(cx.theme().colors().border)
2078            .child(
2079                h_flex()
2080                    .size_full()
2081                    .pl_1()
2082                    .gap_1()
2083                    .child(match &self.active_view {
2084                        ActiveView::History | ActiveView::Configuration => go_back_button,
2085                        _ => recent_entries_menu,
2086                    })
2087                    .child(self.render_title_view(window, cx)),
2088            )
2089            .child(
2090                h_flex()
2091                    .h_full()
2092                    .gap_2()
2093                    .children(self.render_token_count(cx))
2094                    .child(
2095                        h_flex()
2096                            .h_full()
2097                            .gap(DynamicSpacing::Base02.rems(cx))
2098                            .px(DynamicSpacing::Base08.rems(cx))
2099                            .border_l_1()
2100                            .border_color(cx.theme().colors().border)
2101                            .child(new_thread_menu)
2102                            .child(agent_panel_menu),
2103                    ),
2104            )
2105    }
2106
2107    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2108        match &self.active_view {
2109            ActiveView::Thread {
2110                thread,
2111                message_editor,
2112                ..
2113            } => {
2114                let active_thread = thread.read(cx);
2115                let message_editor = message_editor.read(cx);
2116
2117                let editor_empty = message_editor.is_editor_fully_empty(cx);
2118
2119                if active_thread.is_empty() && editor_empty {
2120                    return None;
2121                }
2122
2123                let thread = active_thread.thread().read(cx);
2124                let is_generating = thread.is_generating();
2125                let conversation_token_usage = thread.total_token_usage()?;
2126
2127                let (total_token_usage, is_estimating) =
2128                    if let Some((editing_message_id, unsent_tokens)) =
2129                        active_thread.editing_message_id()
2130                    {
2131                        let combined = thread
2132                            .token_usage_up_to_message(editing_message_id)
2133                            .add(unsent_tokens);
2134
2135                        (combined, unsent_tokens > 0)
2136                    } else {
2137                        let unsent_tokens =
2138                            message_editor.last_estimated_token_count().unwrap_or(0);
2139                        let combined = conversation_token_usage.add(unsent_tokens);
2140
2141                        (combined, unsent_tokens > 0)
2142                    };
2143
2144                let is_waiting_to_update_token_count =
2145                    message_editor.is_waiting_to_update_token_count();
2146
2147                if total_token_usage.total == 0 {
2148                    return None;
2149                }
2150
2151                let token_color = match total_token_usage.ratio() {
2152                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2153                    TokenUsageRatio::Normal => Color::Muted,
2154                    TokenUsageRatio::Warning => Color::Warning,
2155                    TokenUsageRatio::Exceeded => Color::Error,
2156                };
2157
2158                let token_count = h_flex()
2159                    .id("token-count")
2160                    .flex_shrink_0()
2161                    .gap_0p5()
2162                    .when(!is_generating && is_estimating, |parent| {
2163                        parent
2164                            .child(
2165                                h_flex()
2166                                    .mr_1()
2167                                    .size_2p5()
2168                                    .justify_center()
2169                                    .rounded_full()
2170                                    .bg(cx.theme().colors().text.opacity(0.1))
2171                                    .child(
2172                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2173                                    ),
2174                            )
2175                            .tooltip(move |window, cx| {
2176                                Tooltip::with_meta(
2177                                    "Estimated New Token Count",
2178                                    None,
2179                                    format!(
2180                                        "Current Conversation Tokens: {}",
2181                                        humanize_token_count(conversation_token_usage.total)
2182                                    ),
2183                                    window,
2184                                    cx,
2185                                )
2186                            })
2187                    })
2188                    .child(
2189                        Label::new(humanize_token_count(total_token_usage.total))
2190                            .size(LabelSize::Small)
2191                            .color(token_color)
2192                            .map(|label| {
2193                                if is_generating || is_waiting_to_update_token_count {
2194                                    label
2195                                        .with_animation(
2196                                            "used-tokens-label",
2197                                            Animation::new(Duration::from_secs(2))
2198                                                .repeat()
2199                                                .with_easing(pulsating_between(0.6, 1.)),
2200                                            |label, delta| label.alpha(delta),
2201                                        )
2202                                        .into_any()
2203                                } else {
2204                                    label.into_any_element()
2205                                }
2206                            }),
2207                    )
2208                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2209                    .child(
2210                        Label::new(humanize_token_count(total_token_usage.max))
2211                            .size(LabelSize::Small)
2212                            .color(Color::Muted),
2213                    )
2214                    .into_any();
2215
2216                Some(token_count)
2217            }
2218            ActiveView::TextThread { context_editor, .. } => {
2219                let element = render_remaining_tokens(context_editor, cx)?;
2220
2221                Some(element.into_any_element())
2222            }
2223            ActiveView::ExternalAgentThread { .. }
2224            | ActiveView::History
2225            | ActiveView::Configuration => {
2226                return None;
2227            }
2228        }
2229    }
2230
2231    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2232        if TrialEndUpsell::dismissed() {
2233            return false;
2234        }
2235
2236        match &self.active_view {
2237            ActiveView::Thread { thread, .. } => {
2238                if thread
2239                    .read(cx)
2240                    .thread()
2241                    .read(cx)
2242                    .configured_model()
2243                    .map_or(false, |model| {
2244                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2245                    })
2246                {
2247                    return false;
2248                }
2249            }
2250            ActiveView::TextThread { .. } => {
2251                if LanguageModelRegistry::global(cx)
2252                    .read(cx)
2253                    .default_model()
2254                    .map_or(false, |model| {
2255                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2256                    })
2257                {
2258                    return false;
2259                }
2260            }
2261            ActiveView::ExternalAgentThread { .. }
2262            | ActiveView::History
2263            | ActiveView::Configuration => return false,
2264        }
2265
2266        let plan = self.user_store.read(cx).current_plan();
2267        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2268
2269        matches!(plan, Some(Plan::Free)) && has_previous_trial
2270    }
2271
2272    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2273        if OnboardingUpsell::dismissed() {
2274            return false;
2275        }
2276
2277        match &self.active_view {
2278            ActiveView::Thread { thread, .. } => thread
2279                .read(cx)
2280                .thread()
2281                .read(cx)
2282                .configured_model()
2283                .map_or(true, |model| {
2284                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2285                }),
2286            ActiveView::TextThread { .. } => LanguageModelRegistry::global(cx)
2287                .read(cx)
2288                .default_model()
2289                .map_or(true, |model| {
2290                    model.provider.id() == language_model::ZED_CLOUD_PROVIDER_ID
2291                }),
2292            ActiveView::ExternalAgentThread { .. }
2293            | ActiveView::History
2294            | ActiveView::Configuration => false,
2295        }
2296    }
2297
2298    fn render_onboarding(
2299        &self,
2300        _window: &mut Window,
2301        cx: &mut Context<Self>,
2302    ) -> Option<impl IntoElement> {
2303        if !self.should_render_onboarding(cx) {
2304            return None;
2305        }
2306
2307        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2308        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2309
2310        Some(
2311            div()
2312                .size_full()
2313                .when(thread_view, |this| {
2314                    this.bg(cx.theme().colors().panel_background)
2315                })
2316                .when(text_thread_view, |this| {
2317                    this.bg(cx.theme().colors().editor_background)
2318                })
2319                .child(self.onboarding.clone()),
2320        )
2321    }
2322
2323    fn render_trial_end_upsell(
2324        &self,
2325        _window: &mut Window,
2326        cx: &mut Context<Self>,
2327    ) -> Option<impl IntoElement> {
2328        if !self.should_render_trial_end_upsell(cx) {
2329            return None;
2330        }
2331
2332        Some(EndTrialUpsell::new(Arc::new({
2333            let this = cx.entity();
2334            move |_, cx| {
2335                this.update(cx, |_this, cx| {
2336                    TrialEndUpsell::set_dismissed(true, cx);
2337                    cx.notify();
2338                });
2339            }
2340        })))
2341    }
2342
2343    fn render_empty_state_section_header(
2344        &self,
2345        label: impl Into<SharedString>,
2346        action_slot: Option<AnyElement>,
2347        cx: &mut Context<Self>,
2348    ) -> impl IntoElement {
2349        h_flex()
2350            .mt_2()
2351            .pl_1p5()
2352            .pb_1()
2353            .w_full()
2354            .justify_between()
2355            .border_b_1()
2356            .border_color(cx.theme().colors().border_variant)
2357            .child(
2358                Label::new(label.into())
2359                    .size(LabelSize::Small)
2360                    .color(Color::Muted),
2361            )
2362            .children(action_slot)
2363    }
2364
2365    fn render_thread_empty_state(
2366        &self,
2367        window: &mut Window,
2368        cx: &mut Context<Self>,
2369    ) -> impl IntoElement {
2370        let recent_history = self
2371            .history_store
2372            .update(cx, |this, cx| this.recent_entries(6, cx));
2373
2374        let model_registry = LanguageModelRegistry::read_global(cx);
2375
2376        let configuration_error =
2377            model_registry.configuration_error(model_registry.default_model(), cx);
2378
2379        let no_error = configuration_error.is_none();
2380        let focus_handle = self.focus_handle(cx);
2381
2382        v_flex()
2383            .size_full()
2384            .bg(cx.theme().colors().panel_background)
2385            .when(recent_history.is_empty(), |this| {
2386                this.child(
2387                    v_flex()
2388                        .size_full()
2389                        .mx_auto()
2390                        .justify_center()
2391                        .items_center()
2392                        .gap_1()
2393                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2394                        .when(no_error, |parent| {
2395                            parent
2396                                .child(h_flex().child(
2397                                    Label::new("Ask and build anything.").color(Color::Muted),
2398                                ))
2399                                .child(
2400                                    v_flex()
2401                                        .mt_2()
2402                                        .gap_1()
2403                                        .max_w_48()
2404                                        .child(
2405                                            Button::new("context", "Add Context")
2406                                                .label_size(LabelSize::Small)
2407                                                .icon(IconName::FileCode)
2408                                                .icon_position(IconPosition::Start)
2409                                                .icon_size(IconSize::Small)
2410                                                .icon_color(Color::Muted)
2411                                                .full_width()
2412                                                .key_binding(KeyBinding::for_action_in(
2413                                                    &ToggleContextPicker,
2414                                                    &focus_handle,
2415                                                    window,
2416                                                    cx,
2417                                                ))
2418                                                .on_click(|_event, window, cx| {
2419                                                    window.dispatch_action(
2420                                                        ToggleContextPicker.boxed_clone(),
2421                                                        cx,
2422                                                    )
2423                                                }),
2424                                        )
2425                                        .child(
2426                                            Button::new("mode", "Switch Model")
2427                                                .label_size(LabelSize::Small)
2428                                                .icon(IconName::DatabaseZap)
2429                                                .icon_position(IconPosition::Start)
2430                                                .icon_size(IconSize::Small)
2431                                                .icon_color(Color::Muted)
2432                                                .full_width()
2433                                                .key_binding(KeyBinding::for_action_in(
2434                                                    &ToggleModelSelector,
2435                                                    &focus_handle,
2436                                                    window,
2437                                                    cx,
2438                                                ))
2439                                                .on_click(|_event, window, cx| {
2440                                                    window.dispatch_action(
2441                                                        ToggleModelSelector.boxed_clone(),
2442                                                        cx,
2443                                                    )
2444                                                }),
2445                                        )
2446                                        .child(
2447                                            Button::new("settings", "View Settings")
2448                                                .label_size(LabelSize::Small)
2449                                                .icon(IconName::Settings)
2450                                                .icon_position(IconPosition::Start)
2451                                                .icon_size(IconSize::Small)
2452                                                .icon_color(Color::Muted)
2453                                                .full_width()
2454                                                .key_binding(KeyBinding::for_action_in(
2455                                                    &OpenConfiguration,
2456                                                    &focus_handle,
2457                                                    window,
2458                                                    cx,
2459                                                ))
2460                                                .on_click(|_event, window, cx| {
2461                                                    window.dispatch_action(
2462                                                        OpenConfiguration.boxed_clone(),
2463                                                        cx,
2464                                                    )
2465                                                }),
2466                                        ),
2467                                )
2468                        })
2469                        .when_some(configuration_error.as_ref(), |this, err| {
2470                            this.child(self.render_configuration_error(
2471                                err,
2472                                &focus_handle,
2473                                window,
2474                                cx,
2475                            ))
2476                        }),
2477                )
2478            })
2479            .when(!recent_history.is_empty(), |parent| {
2480                let focus_handle = focus_handle.clone();
2481                parent
2482                    .overflow_hidden()
2483                    .p_1p5()
2484                    .justify_end()
2485                    .gap_1()
2486                    .child(
2487                        self.render_empty_state_section_header(
2488                            "Recent",
2489                            Some(
2490                                Button::new("view-history", "View All")
2491                                    .style(ButtonStyle::Subtle)
2492                                    .label_size(LabelSize::Small)
2493                                    .key_binding(
2494                                        KeyBinding::for_action_in(
2495                                            &OpenHistory,
2496                                            &self.focus_handle(cx),
2497                                            window,
2498                                            cx,
2499                                        )
2500                                        .map(|kb| kb.size(rems_from_px(12.))),
2501                                    )
2502                                    .on_click(move |_event, window, cx| {
2503                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2504                                    })
2505                                    .into_any_element(),
2506                            ),
2507                            cx,
2508                        ),
2509                    )
2510                    .child(
2511                        v_flex()
2512                            .gap_1()
2513                            .children(recent_history.into_iter().enumerate().map(
2514                                |(index, entry)| {
2515                                    // TODO: Add keyboard navigation.
2516                                    let is_hovered =
2517                                        self.hovered_recent_history_item == Some(index);
2518                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2519                                        .hovered(is_hovered)
2520                                        .on_hover(cx.listener(
2521                                            move |this, is_hovered, _window, cx| {
2522                                                if *is_hovered {
2523                                                    this.hovered_recent_history_item = Some(index);
2524                                                } else if this.hovered_recent_history_item
2525                                                    == Some(index)
2526                                                {
2527                                                    this.hovered_recent_history_item = None;
2528                                                }
2529                                                cx.notify();
2530                                            },
2531                                        ))
2532                                        .into_any_element()
2533                                },
2534                            )),
2535                    )
2536                    .child(self.render_empty_state_section_header("Start", None, cx))
2537                    .child(
2538                        v_flex()
2539                            .p_1()
2540                            .gap_2()
2541                            .child(
2542                                h_flex()
2543                                    .w_full()
2544                                    .gap_2()
2545                                    .child(
2546                                        NewThreadButton::new(
2547                                            "new-thread-btn",
2548                                            "New Thread",
2549                                            IconName::NewThread,
2550                                        )
2551                                        .keybinding(KeyBinding::for_action_in(
2552                                            &NewThread::default(),
2553                                            &self.focus_handle(cx),
2554                                            window,
2555                                            cx,
2556                                        ))
2557                                        .on_click(
2558                                            |window, cx| {
2559                                                window.dispatch_action(
2560                                                    NewThread::default().boxed_clone(),
2561                                                    cx,
2562                                                )
2563                                            },
2564                                        ),
2565                                    )
2566                                    .child(
2567                                        NewThreadButton::new(
2568                                            "new-text-thread-btn",
2569                                            "New Text Thread",
2570                                            IconName::NewTextThread,
2571                                        )
2572                                        .keybinding(KeyBinding::for_action_in(
2573                                            &NewTextThread,
2574                                            &self.focus_handle(cx),
2575                                            window,
2576                                            cx,
2577                                        ))
2578                                        .on_click(
2579                                            |window, cx| {
2580                                                window.dispatch_action(Box::new(NewTextThread), cx)
2581                                            },
2582                                        ),
2583                                    ),
2584                            )
2585                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
2586                                this.child(
2587                                    h_flex()
2588                                        .w_full()
2589                                        .gap_2()
2590                                        .child(
2591                                            NewThreadButton::new(
2592                                                "new-gemini-thread-btn",
2593                                                "New Gemini Thread",
2594                                                IconName::AiGemini,
2595                                            )
2596                                            // .keybinding(KeyBinding::for_action_in(
2597                                            //     &OpenHistory,
2598                                            //     &self.focus_handle(cx),
2599                                            //     window,
2600                                            //     cx,
2601                                            // ))
2602                                            .on_click(
2603                                                |window, cx| {
2604                                                    window.dispatch_action(
2605                                                        Box::new(NewExternalAgentThread {
2606                                                            agent: Some(
2607                                                                crate::ExternalAgent::Gemini,
2608                                                            ),
2609                                                        }),
2610                                                        cx,
2611                                                    )
2612                                                },
2613                                            ),
2614                                        )
2615                                        .child(
2616                                            NewThreadButton::new(
2617                                                "new-claude-thread-btn",
2618                                                "New Claude Code Thread",
2619                                                IconName::AiClaude,
2620                                            )
2621                                            // .keybinding(KeyBinding::for_action_in(
2622                                            //     &OpenHistory,
2623                                            //     &self.focus_handle(cx),
2624                                            //     window,
2625                                            //     cx,
2626                                            // ))
2627                                            .on_click(
2628                                                |window, cx| {
2629                                                    window.dispatch_action(
2630                                                        Box::new(NewExternalAgentThread {
2631                                                            agent: Some(
2632                                                                crate::ExternalAgent::ClaudeCode,
2633                                                            ),
2634                                                        }),
2635                                                        cx,
2636                                                    )
2637                                                },
2638                                            ),
2639                                        ),
2640                                )
2641                            }),
2642                    )
2643                    .when_some(configuration_error.as_ref(), |this, err| {
2644                        this.child(self.render_configuration_error(err, &focus_handle, window, cx))
2645                    })
2646            })
2647    }
2648
2649    fn render_configuration_error(
2650        &self,
2651        configuration_error: &ConfigurationError,
2652        focus_handle: &FocusHandle,
2653        window: &mut Window,
2654        cx: &mut App,
2655    ) -> impl IntoElement {
2656        match configuration_error {
2657            ConfigurationError::ModelNotFound
2658            | ConfigurationError::ProviderNotAuthenticated(_)
2659            | ConfigurationError::NoProvider => Banner::new()
2660                .severity(ui::Severity::Warning)
2661                .child(Label::new(configuration_error.to_string()))
2662                .action_slot(
2663                    Button::new("settings", "Configure Provider")
2664                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2665                        .label_size(LabelSize::Small)
2666                        .key_binding(
2667                            KeyBinding::for_action_in(
2668                                &OpenConfiguration,
2669                                &focus_handle,
2670                                window,
2671                                cx,
2672                            )
2673                            .map(|kb| kb.size(rems_from_px(12.))),
2674                        )
2675                        .on_click(|_event, window, cx| {
2676                            window.dispatch_action(OpenConfiguration.boxed_clone(), cx)
2677                        }),
2678                ),
2679            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
2680                Banner::new().severity(ui::Severity::Warning).child(
2681                    h_flex().w_full().children(
2682                        provider.render_accept_terms(
2683                            LanguageModelProviderTosView::ThreadEmptyState,
2684                            cx,
2685                        ),
2686                    ),
2687                )
2688            }
2689        }
2690    }
2691
2692    fn render_tool_use_limit_reached(
2693        &self,
2694        window: &mut Window,
2695        cx: &mut Context<Self>,
2696    ) -> Option<AnyElement> {
2697        let active_thread = match &self.active_view {
2698            ActiveView::Thread { thread, .. } => thread,
2699            ActiveView::ExternalAgentThread { .. } => {
2700                return None;
2701            }
2702            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2703                return None;
2704            }
2705        };
2706
2707        let thread = active_thread.read(cx).thread().read(cx);
2708
2709        let tool_use_limit_reached = thread.tool_use_limit_reached();
2710        if !tool_use_limit_reached {
2711            return None;
2712        }
2713
2714        let model = thread.configured_model()?.model;
2715
2716        let focus_handle = self.focus_handle(cx);
2717
2718        let banner = Banner::new()
2719            .severity(ui::Severity::Info)
2720            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2721            .action_slot(
2722                h_flex()
2723                    .gap_1()
2724                    .child(
2725                        Button::new("continue-conversation", "Continue")
2726                            .layer(ElevationIndex::ModalSurface)
2727                            .label_size(LabelSize::Small)
2728                            .key_binding(
2729                                KeyBinding::for_action_in(
2730                                    &ContinueThread,
2731                                    &focus_handle,
2732                                    window,
2733                                    cx,
2734                                )
2735                                .map(|kb| kb.size(rems_from_px(10.))),
2736                            )
2737                            .on_click(cx.listener(|this, _, window, cx| {
2738                                this.continue_conversation(window, cx);
2739                            })),
2740                    )
2741                    .when(model.supports_burn_mode(), |this| {
2742                        this.child(
2743                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2744                                .style(ButtonStyle::Filled)
2745                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2746                                .layer(ElevationIndex::ModalSurface)
2747                                .label_size(LabelSize::Small)
2748                                .key_binding(
2749                                    KeyBinding::for_action_in(
2750                                        &ContinueWithBurnMode,
2751                                        &focus_handle,
2752                                        window,
2753                                        cx,
2754                                    )
2755                                    .map(|kb| kb.size(rems_from_px(10.))),
2756                                )
2757                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
2758                                .on_click({
2759                                    let active_thread = active_thread.clone();
2760                                    cx.listener(move |this, _, window, cx| {
2761                                        active_thread.update(cx, |active_thread, cx| {
2762                                            active_thread.thread().update(cx, |thread, _cx| {
2763                                                thread.set_completion_mode(CompletionMode::Burn);
2764                                            });
2765                                        });
2766                                        this.continue_conversation(window, cx);
2767                                    })
2768                                }),
2769                        )
2770                    }),
2771            );
2772
2773        Some(div().px_2().pb_2().child(banner).into_any_element())
2774    }
2775
2776    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
2777        let message = message.into();
2778
2779        IconButton::new("copy", IconName::Copy)
2780            .icon_size(IconSize::Small)
2781            .icon_color(Color::Muted)
2782            .tooltip(Tooltip::text("Copy Error Message"))
2783            .on_click(move |_, _, cx| {
2784                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
2785            })
2786    }
2787
2788    fn dismiss_error_button(
2789        &self,
2790        thread: &Entity<ActiveThread>,
2791        cx: &mut Context<Self>,
2792    ) -> impl IntoElement {
2793        IconButton::new("dismiss", IconName::Close)
2794            .icon_size(IconSize::Small)
2795            .icon_color(Color::Muted)
2796            .tooltip(Tooltip::text("Dismiss Error"))
2797            .on_click(cx.listener({
2798                let thread = thread.clone();
2799                move |_, _, _, cx| {
2800                    thread.update(cx, |this, _cx| {
2801                        this.clear_last_error();
2802                    });
2803
2804                    cx.notify();
2805                }
2806            }))
2807    }
2808
2809    fn upgrade_button(
2810        &self,
2811        thread: &Entity<ActiveThread>,
2812        cx: &mut Context<Self>,
2813    ) -> impl IntoElement {
2814        Button::new("upgrade", "Upgrade")
2815            .label_size(LabelSize::Small)
2816            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2817            .on_click(cx.listener({
2818                let thread = thread.clone();
2819                move |_, _, _, cx| {
2820                    thread.update(cx, |this, _cx| {
2821                        this.clear_last_error();
2822                    });
2823
2824                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
2825                    cx.notify();
2826                }
2827            }))
2828    }
2829
2830    fn error_callout_bg(&self, cx: &Context<Self>) -> Hsla {
2831        cx.theme().status().error.opacity(0.08)
2832    }
2833
2834    fn render_payment_required_error(
2835        &self,
2836        thread: &Entity<ActiveThread>,
2837        cx: &mut Context<Self>,
2838    ) -> AnyElement {
2839        const ERROR_MESSAGE: &str =
2840            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
2841
2842        let icon = Icon::new(IconName::XCircle)
2843            .size(IconSize::Small)
2844            .color(Color::Error);
2845
2846        div()
2847            .border_t_1()
2848            .border_color(cx.theme().colors().border)
2849            .child(
2850                Callout::new()
2851                    .icon(icon)
2852                    .title("Free Usage Exceeded")
2853                    .description(ERROR_MESSAGE)
2854                    .tertiary_action(self.upgrade_button(thread, cx))
2855                    .secondary_action(self.create_copy_button(ERROR_MESSAGE))
2856                    .primary_action(self.dismiss_error_button(thread, cx))
2857                    .bg_color(self.error_callout_bg(cx)),
2858            )
2859            .into_any_element()
2860    }
2861
2862    fn render_model_request_limit_reached_error(
2863        &self,
2864        plan: Plan,
2865        thread: &Entity<ActiveThread>,
2866        cx: &mut Context<Self>,
2867    ) -> AnyElement {
2868        let error_message = match plan {
2869            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
2870            Plan::ZedProTrial | Plan::Free => "Upgrade to Zed Pro for more prompts.",
2871        };
2872
2873        let icon = Icon::new(IconName::XCircle)
2874            .size(IconSize::Small)
2875            .color(Color::Error);
2876
2877        div()
2878            .border_t_1()
2879            .border_color(cx.theme().colors().border)
2880            .child(
2881                Callout::new()
2882                    .icon(icon)
2883                    .title("Model Prompt Limit Reached")
2884                    .description(error_message)
2885                    .tertiary_action(self.upgrade_button(thread, cx))
2886                    .secondary_action(self.create_copy_button(error_message))
2887                    .primary_action(self.dismiss_error_button(thread, cx))
2888                    .bg_color(self.error_callout_bg(cx)),
2889            )
2890            .into_any_element()
2891    }
2892
2893    fn render_error_message(
2894        &self,
2895        header: SharedString,
2896        message: SharedString,
2897        thread: &Entity<ActiveThread>,
2898        cx: &mut Context<Self>,
2899    ) -> AnyElement {
2900        let message_with_header = format!("{}\n{}", header, message);
2901
2902        let icon = Icon::new(IconName::XCircle)
2903            .size(IconSize::Small)
2904            .color(Color::Error);
2905
2906        let retry_button = Button::new("retry", "Retry")
2907            .icon(IconName::RotateCw)
2908            .icon_position(IconPosition::Start)
2909            .icon_size(IconSize::Small)
2910            .label_size(LabelSize::Small)
2911            .on_click({
2912                let thread = thread.clone();
2913                move |_, window, cx| {
2914                    thread.update(cx, |thread, cx| {
2915                        thread.clear_last_error();
2916                        thread.thread().update(cx, |thread, cx| {
2917                            thread.retry_last_completion(Some(window.window_handle()), cx);
2918                        });
2919                    });
2920                }
2921            });
2922
2923        div()
2924            .border_t_1()
2925            .border_color(cx.theme().colors().border)
2926            .child(
2927                Callout::new()
2928                    .icon(icon)
2929                    .title(header)
2930                    .description(message.clone())
2931                    .primary_action(retry_button)
2932                    .secondary_action(self.dismiss_error_button(thread, cx))
2933                    .tertiary_action(self.create_copy_button(message_with_header))
2934                    .bg_color(self.error_callout_bg(cx)),
2935            )
2936            .into_any_element()
2937    }
2938
2939    fn render_retryable_error(
2940        &self,
2941        message: SharedString,
2942        can_enable_burn_mode: bool,
2943        thread: &Entity<ActiveThread>,
2944        cx: &mut Context<Self>,
2945    ) -> AnyElement {
2946        let icon = Icon::new(IconName::XCircle)
2947            .size(IconSize::Small)
2948            .color(Color::Error);
2949
2950        let retry_button = Button::new("retry", "Retry")
2951            .icon(IconName::RotateCw)
2952            .icon_position(IconPosition::Start)
2953            .icon_size(IconSize::Small)
2954            .label_size(LabelSize::Small)
2955            .on_click({
2956                let thread = thread.clone();
2957                move |_, window, cx| {
2958                    thread.update(cx, |thread, cx| {
2959                        thread.clear_last_error();
2960                        thread.thread().update(cx, |thread, cx| {
2961                            thread.retry_last_completion(Some(window.window_handle()), cx);
2962                        });
2963                    });
2964                }
2965            });
2966
2967        let mut callout = Callout::new()
2968            .icon(icon)
2969            .title("Error")
2970            .description(message.clone())
2971            .bg_color(self.error_callout_bg(cx))
2972            .primary_action(retry_button);
2973
2974        if can_enable_burn_mode {
2975            let burn_mode_button = Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
2976                .icon(IconName::ZedBurnMode)
2977                .icon_position(IconPosition::Start)
2978                .icon_size(IconSize::Small)
2979                .label_size(LabelSize::Small)
2980                .on_click({
2981                    let thread = thread.clone();
2982                    move |_, window, cx| {
2983                        thread.update(cx, |thread, cx| {
2984                            thread.clear_last_error();
2985                            thread.thread().update(cx, |thread, cx| {
2986                                thread.enable_burn_mode_and_retry(Some(window.window_handle()), cx);
2987                            });
2988                        });
2989                    }
2990                });
2991            callout = callout.secondary_action(burn_mode_button);
2992        }
2993
2994        div()
2995            .border_t_1()
2996            .border_color(cx.theme().colors().border)
2997            .child(callout)
2998            .into_any_element()
2999    }
3000
3001    fn render_prompt_editor(
3002        &self,
3003        context_editor: &Entity<TextThreadEditor>,
3004        buffer_search_bar: &Entity<BufferSearchBar>,
3005        window: &mut Window,
3006        cx: &mut Context<Self>,
3007    ) -> Div {
3008        let mut registrar = buffer_search::DivRegistrar::new(
3009            |this, _, _cx| match &this.active_view {
3010                ActiveView::TextThread {
3011                    buffer_search_bar, ..
3012                } => Some(buffer_search_bar.clone()),
3013                _ => None,
3014            },
3015            cx,
3016        );
3017        BufferSearchBar::register(&mut registrar);
3018        registrar
3019            .into_div()
3020            .size_full()
3021            .relative()
3022            .map(|parent| {
3023                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3024                    if buffer_search_bar.is_dismissed() {
3025                        return parent;
3026                    }
3027                    parent.child(
3028                        div()
3029                            .p(DynamicSpacing::Base08.rems(cx))
3030                            .border_b_1()
3031                            .border_color(cx.theme().colors().border_variant)
3032                            .bg(cx.theme().colors().editor_background)
3033                            .child(buffer_search_bar.render(window, cx)),
3034                    )
3035                })
3036            })
3037            .child(context_editor.clone())
3038            .child(self.render_drag_target(cx))
3039    }
3040
3041    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3042        let is_local = self.project.read(cx).is_local();
3043        div()
3044            .invisible()
3045            .absolute()
3046            .top_0()
3047            .right_0()
3048            .bottom_0()
3049            .left_0()
3050            .bg(cx.theme().colors().drop_target_background)
3051            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3052            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3053            .when(is_local, |this| {
3054                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3055            })
3056            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3057                let item = tab.pane.read(cx).item_for_index(tab.ix);
3058                let project_paths = item
3059                    .and_then(|item| item.project_path(cx))
3060                    .into_iter()
3061                    .collect::<Vec<_>>();
3062                this.handle_drop(project_paths, vec![], window, cx);
3063            }))
3064            .on_drop(
3065                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3066                    let project_paths = selection
3067                        .items()
3068                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3069                        .collect::<Vec<_>>();
3070                    this.handle_drop(project_paths, vec![], window, cx);
3071                }),
3072            )
3073            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3074                let tasks = paths
3075                    .paths()
3076                    .into_iter()
3077                    .map(|path| {
3078                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
3079                    })
3080                    .collect::<Vec<_>>();
3081                cx.spawn_in(window, async move |this, cx| {
3082                    let mut paths = vec![];
3083                    let mut added_worktrees = vec![];
3084                    let opened_paths = futures::future::join_all(tasks).await;
3085                    for entry in opened_paths {
3086                        if let Some((worktree, project_path)) = entry.log_err() {
3087                            added_worktrees.push(worktree);
3088                            paths.push(project_path);
3089                        }
3090                    }
3091                    this.update_in(cx, |this, window, cx| {
3092                        this.handle_drop(paths, added_worktrees, window, cx);
3093                    })
3094                    .ok();
3095                })
3096                .detach();
3097            }))
3098    }
3099
3100    fn handle_drop(
3101        &mut self,
3102        paths: Vec<ProjectPath>,
3103        added_worktrees: Vec<Entity<Worktree>>,
3104        window: &mut Window,
3105        cx: &mut Context<Self>,
3106    ) {
3107        match &self.active_view {
3108            ActiveView::Thread { thread, .. } => {
3109                let context_store = thread.read(cx).context_store().clone();
3110                context_store.update(cx, move |context_store, cx| {
3111                    let mut tasks = Vec::new();
3112                    for project_path in &paths {
3113                        tasks.push(context_store.add_file_from_path(
3114                            project_path.clone(),
3115                            false,
3116                            cx,
3117                        ));
3118                    }
3119                    cx.background_spawn(async move {
3120                        futures::future::join_all(tasks).await;
3121                        // Need to hold onto the worktrees until they have already been used when
3122                        // opening the buffers.
3123                        drop(added_worktrees);
3124                    })
3125                    .detach();
3126                });
3127            }
3128            ActiveView::ExternalAgentThread { .. } => {
3129                unimplemented!()
3130            }
3131            ActiveView::TextThread { context_editor, .. } => {
3132                context_editor.update(cx, |context_editor, cx| {
3133                    TextThreadEditor::insert_dragged_files(
3134                        context_editor,
3135                        paths,
3136                        added_worktrees,
3137                        window,
3138                        cx,
3139                    );
3140                });
3141            }
3142            ActiveView::History | ActiveView::Configuration => {}
3143        }
3144    }
3145
3146    fn key_context(&self) -> KeyContext {
3147        let mut key_context = KeyContext::new_with_defaults();
3148        key_context.add("AgentPanel");
3149        match &self.active_view {
3150            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3151            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3152            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3153        }
3154        key_context
3155    }
3156}
3157
3158impl Render for AgentPanel {
3159    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3160        // WARNING: Changes to this element hierarchy can have
3161        // non-obvious implications to the layout of children.
3162        //
3163        // If you need to change it, please confirm:
3164        // - The message editor expands (cmd-option-esc) correctly
3165        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3166        // - Font size works as expected and can be changed with cmd-+/cmd-
3167        // - Scrolling in all views works as expected
3168        // - Files can be dropped into the panel
3169        let content = v_flex()
3170            .key_context(self.key_context())
3171            .justify_between()
3172            .size_full()
3173            .on_action(cx.listener(Self::cancel))
3174            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3175                this.new_thread(action, window, cx);
3176            }))
3177            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3178                this.open_history(window, cx);
3179            }))
3180            .on_action(cx.listener(|this, _: &OpenConfiguration, window, cx| {
3181                this.open_configuration(window, cx);
3182            }))
3183            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3184            .on_action(cx.listener(Self::deploy_rules_library))
3185            .on_action(cx.listener(Self::open_agent_diff))
3186            .on_action(cx.listener(Self::go_back))
3187            .on_action(cx.listener(Self::toggle_navigation_menu))
3188            .on_action(cx.listener(Self::toggle_options_menu))
3189            .on_action(cx.listener(Self::increase_font_size))
3190            .on_action(cx.listener(Self::decrease_font_size))
3191            .on_action(cx.listener(Self::reset_font_size))
3192            .on_action(cx.listener(Self::toggle_zoom))
3193            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3194                this.continue_conversation(window, cx);
3195            }))
3196            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3197                match &this.active_view {
3198                    ActiveView::Thread { thread, .. } => {
3199                        thread.update(cx, |active_thread, cx| {
3200                            active_thread.thread().update(cx, |thread, _cx| {
3201                                thread.set_completion_mode(CompletionMode::Burn);
3202                            });
3203                        });
3204                        this.continue_conversation(window, cx);
3205                    }
3206                    ActiveView::ExternalAgentThread { .. } => {}
3207                    ActiveView::TextThread { .. }
3208                    | ActiveView::History
3209                    | ActiveView::Configuration => {}
3210                }
3211            }))
3212            .on_action(cx.listener(Self::toggle_burn_mode))
3213            .child(self.render_toolbar(window, cx))
3214            .children(self.render_onboarding(window, cx))
3215            .children(self.render_trial_end_upsell(window, cx))
3216            .map(|parent| match &self.active_view {
3217                ActiveView::Thread {
3218                    thread,
3219                    message_editor,
3220                    ..
3221                } => parent
3222                    .relative()
3223                    .child(
3224                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3225                            self.render_thread_empty_state(window, cx)
3226                                .into_any_element()
3227                        } else {
3228                            thread.clone().into_any_element()
3229                        },
3230                    )
3231                    .children(self.render_tool_use_limit_reached(window, cx))
3232                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3233                        this.child(
3234                            div()
3235                                .child(match last_error {
3236                                    ThreadError::PaymentRequired => {
3237                                        self.render_payment_required_error(thread, cx)
3238                                    }
3239                                    ThreadError::ModelRequestLimitReached { plan } => self
3240                                        .render_model_request_limit_reached_error(plan, thread, cx),
3241                                    ThreadError::Message { header, message } => {
3242                                        self.render_error_message(header, message, thread, cx)
3243                                    }
3244                                    ThreadError::RetryableError {
3245                                        message,
3246                                        can_enable_burn_mode,
3247                                    } => self.render_retryable_error(
3248                                        message,
3249                                        can_enable_burn_mode,
3250                                        thread,
3251                                        cx,
3252                                    ),
3253                                })
3254                                .into_any(),
3255                        )
3256                    })
3257                    .child(h_flex().relative().child(message_editor.clone()).when(
3258                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3259                        |this| {
3260                            this.child(
3261                                div()
3262                                    .size_full()
3263                                    .absolute()
3264                                    .inset_0()
3265                                    .bg(cx.theme().colors().panel_background)
3266                                    .opacity(0.8)
3267                                    .block_mouse_except_scroll(),
3268                            )
3269                        },
3270                    ))
3271                    .child(self.render_drag_target(cx)),
3272                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3273                    .relative()
3274                    .child(thread_view.clone())
3275                    .child(self.render_drag_target(cx)),
3276                ActiveView::History => parent.child(self.history.clone()),
3277                ActiveView::TextThread {
3278                    context_editor,
3279                    buffer_search_bar,
3280                    ..
3281                } => {
3282                    let model_registry = LanguageModelRegistry::read_global(cx);
3283                    let configuration_error =
3284                        model_registry.configuration_error(model_registry.default_model(), cx);
3285                    parent
3286                        .map(|this| {
3287                            if !self.should_render_onboarding(cx)
3288                                && let Some(err) = configuration_error.as_ref()
3289                            {
3290                                this.child(
3291                                    div().bg(cx.theme().colors().editor_background).p_2().child(
3292                                        self.render_configuration_error(
3293                                            err,
3294                                            &self.focus_handle(cx),
3295                                            window,
3296                                            cx,
3297                                        ),
3298                                    ),
3299                                )
3300                            } else {
3301                                this
3302                            }
3303                        })
3304                        .child(self.render_prompt_editor(
3305                            context_editor,
3306                            buffer_search_bar,
3307                            window,
3308                            cx,
3309                        ))
3310                }
3311                ActiveView::Configuration => parent.children(self.configuration.clone()),
3312            });
3313
3314        match self.active_view.which_font_size_used() {
3315            WhichFontSize::AgentFont => {
3316                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3317                    .size_full()
3318                    .child(content)
3319                    .into_any()
3320            }
3321            _ => content.into_any(),
3322        }
3323    }
3324}
3325
3326struct PromptLibraryInlineAssist {
3327    workspace: WeakEntity<Workspace>,
3328}
3329
3330impl PromptLibraryInlineAssist {
3331    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3332        Self { workspace }
3333    }
3334}
3335
3336impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3337    fn assist(
3338        &self,
3339        prompt_editor: &Entity<Editor>,
3340        initial_prompt: Option<String>,
3341        window: &mut Window,
3342        cx: &mut Context<RulesLibrary>,
3343    ) {
3344        InlineAssistant::update_global(cx, |assistant, cx| {
3345            let Some(project) = self
3346                .workspace
3347                .upgrade()
3348                .map(|workspace| workspace.read(cx).project().downgrade())
3349            else {
3350                return;
3351            };
3352            let prompt_store = None;
3353            let thread_store = None;
3354            let text_thread_store = None;
3355            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3356            assistant.assist(
3357                &prompt_editor,
3358                self.workspace.clone(),
3359                context_store,
3360                project,
3361                prompt_store,
3362                thread_store,
3363                text_thread_store,
3364                initial_prompt,
3365                window,
3366                cx,
3367            )
3368        })
3369    }
3370
3371    fn focus_agent_panel(
3372        &self,
3373        workspace: &mut Workspace,
3374        window: &mut Window,
3375        cx: &mut Context<Workspace>,
3376    ) -> bool {
3377        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3378    }
3379}
3380
3381pub struct ConcreteAssistantPanelDelegate;
3382
3383impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3384    fn active_context_editor(
3385        &self,
3386        workspace: &mut Workspace,
3387        _window: &mut Window,
3388        cx: &mut Context<Workspace>,
3389    ) -> Option<Entity<TextThreadEditor>> {
3390        let panel = workspace.panel::<AgentPanel>(cx)?;
3391        panel.read(cx).active_context_editor()
3392    }
3393
3394    fn open_saved_context(
3395        &self,
3396        workspace: &mut Workspace,
3397        path: Arc<Path>,
3398        window: &mut Window,
3399        cx: &mut Context<Workspace>,
3400    ) -> Task<Result<()>> {
3401        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3402            return Task::ready(Err(anyhow!("Agent panel not found")));
3403        };
3404
3405        panel.update(cx, |panel, cx| {
3406            panel.open_saved_prompt_editor(path, window, cx)
3407        })
3408    }
3409
3410    fn open_remote_context(
3411        &self,
3412        _workspace: &mut Workspace,
3413        _context_id: assistant_context::ContextId,
3414        _window: &mut Window,
3415        _cx: &mut Context<Workspace>,
3416    ) -> Task<Result<Entity<TextThreadEditor>>> {
3417        Task::ready(Err(anyhow!("opening remote context not implemented")))
3418    }
3419
3420    fn quote_selection(
3421        &self,
3422        workspace: &mut Workspace,
3423        selection_ranges: Vec<Range<Anchor>>,
3424        buffer: Entity<MultiBuffer>,
3425        window: &mut Window,
3426        cx: &mut Context<Workspace>,
3427    ) {
3428        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3429            return;
3430        };
3431
3432        if !panel.focus_handle(cx).contains_focused(window, cx) {
3433            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3434        }
3435
3436        panel.update(cx, |_, cx| {
3437            // Wait to create a new context until the workspace is no longer
3438            // being updated.
3439            cx.defer_in(window, move |panel, window, cx| {
3440                if let Some(message_editor) = panel.active_message_editor() {
3441                    message_editor.update(cx, |message_editor, cx| {
3442                        message_editor.context_store().update(cx, |store, cx| {
3443                            let buffer = buffer.read(cx);
3444                            let selection_ranges = selection_ranges
3445                                .into_iter()
3446                                .flat_map(|range| {
3447                                    let (start_buffer, start) =
3448                                        buffer.text_anchor_for_position(range.start, cx)?;
3449                                    let (end_buffer, end) =
3450                                        buffer.text_anchor_for_position(range.end, cx)?;
3451                                    if start_buffer != end_buffer {
3452                                        return None;
3453                                    }
3454                                    Some((start_buffer, start..end))
3455                                })
3456                                .collect::<Vec<_>>();
3457
3458                            for (buffer, range) in selection_ranges {
3459                                store.add_selection(buffer, range, cx);
3460                            }
3461                        })
3462                    })
3463                } else if let Some(context_editor) = panel.active_context_editor() {
3464                    let snapshot = buffer.read(cx).snapshot(cx);
3465                    let selection_ranges = selection_ranges
3466                        .into_iter()
3467                        .map(|range| range.to_point(&snapshot))
3468                        .collect::<Vec<_>>();
3469
3470                    context_editor.update(cx, |context_editor, cx| {
3471                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3472                    });
3473                }
3474            });
3475        });
3476    }
3477}
3478
3479struct OnboardingUpsell;
3480
3481impl Dismissable for OnboardingUpsell {
3482    const KEY: &'static str = "dismissed-trial-upsell";
3483}
3484
3485struct TrialEndUpsell;
3486
3487impl Dismissable for TrialEndUpsell {
3488    const KEY: &'static str = "dismissed-trial-end-upsell";
3489}