agent_panel.rs

   1use std::cell::RefCell;
   2use std::ops::{Not, Range};
   3use std::path::Path;
   4use std::rc::Rc;
   5use std::sync::Arc;
   6use std::time::Duration;
   7
   8use agent_servers::AgentServer;
   9use db::kvp::{Dismissable, KEY_VALUE_STORE};
  10use serde::{Deserialize, Serialize};
  11
  12use crate::NewExternalAgentThread;
  13use crate::agent_diff::AgentDiffThread;
  14use crate::message_editor::{MAX_EDITOR_LINES, MIN_EDITOR_LINES};
  15use crate::ui::NewThreadButton;
  16use crate::{
  17    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  18    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  19    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  20    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu, ToggleOptionsMenu,
  21    acp::AcpThreadView,
  22    active_thread::{self, ActiveThread, ActiveThreadEvent},
  23    agent_configuration::{AgentConfiguration, AssistantConfigurationEvent},
  24    agent_diff::AgentDiff,
  25    message_editor::{MessageEditor, MessageEditorEvent},
  26    slash_command::SlashCommandCompletionProvider,
  27    text_thread_editor::{
  28        AgentPanelDelegate, TextThreadEditor, humanize_token_count, make_lsp_adapter_delegate,
  29        render_remaining_tokens,
  30    },
  31    thread_history::{HistoryEntryElement, ThreadHistory},
  32    ui::{AgentOnboardingModal, EndTrialUpsell},
  33};
  34use agent::{
  35    Thread, ThreadError, ThreadEvent, ThreadId, ThreadSummary, TokenUsageRatio,
  36    context_store::ContextStore,
  37    history_store::{HistoryEntryId, HistoryStore},
  38    thread_store::{TextThreadStore, ThreadStore},
  39};
  40use agent_settings::{AgentDockPosition, AgentSettings, CompletionMode, DefaultView};
  41use ai_onboarding::AgentPanelOnboarding;
  42use anyhow::{Result, anyhow};
  43use assistant_context::{AssistantContext, ContextEvent, ContextSummary};
  44use assistant_slash_command::SlashCommandWorkingSet;
  45use assistant_tool::ToolWorkingSet;
  46use client::{UserStore, zed_urls};
  47use cloud_llm_client::{CompletionIntent, Plan, UsageLimit};
  48use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
  49use feature_flags::{self, FeatureFlagAppExt};
  50use fs::Fs;
  51use gpui::{
  52    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
  53    Corner, DismissEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable, Hsla,
  54    KeyContext, Pixels, Subscription, Task, UpdateGlobal, WeakEntity, prelude::*,
  55    pulsating_between,
  56};
  57use language::LanguageRegistry;
  58use language_model::{
  59    ConfigurationError, ConfiguredModel, LanguageModelProviderTosView, LanguageModelRegistry,
  60};
  61use project::{DisableAiSettings, Project, ProjectPath, Worktree};
  62use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
  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::{OpenOnboardingModal, OpenSettings, ResetOnboarding, ToggleModelSelector},
  81    assistant::{OpenRulesLibrary, ToggleFocus},
  82};
  83
  84const AGENT_PANEL_KEY: &str = "agent_panel";
  85
  86#[derive(Serialize, Deserialize)]
  87struct SerializedAgentPanel {
  88    width: Option<Pixels>,
  89}
  90
  91pub fn init(cx: &mut App) {
  92    cx.observe_new(
  93        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  94            workspace
  95                .register_action(|workspace, action: &NewThread, window, cx| {
  96                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  97                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  98                        workspace.focus_panel::<AgentPanel>(window, cx);
  99                    }
 100                })
 101                .register_action(|workspace, _: &OpenHistory, window, cx| {
 102                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 103                        workspace.focus_panel::<AgentPanel>(window, cx);
 104                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
 105                    }
 106                })
 107                .register_action(|workspace, _: &OpenSettings, window, cx| {
 108                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 109                        workspace.focus_panel::<AgentPanel>(window, cx);
 110                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 111                    }
 112                })
 113                .register_action(|workspace, _: &NewTextThread, window, cx| {
 114                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 115                        workspace.focus_panel::<AgentPanel>(window, cx);
 116                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 117                    }
 118                })
 119                .register_action(|workspace, action: &NewExternalAgentThread, window, cx| {
 120                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 121                        workspace.focus_panel::<AgentPanel>(window, cx);
 122                        panel.update(cx, |panel, cx| {
 123                            panel.new_external_thread(action.agent, window, cx)
 124                        });
 125                    }
 126                })
 127                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 128                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 129                        workspace.focus_panel::<AgentPanel>(window, cx);
 130                        panel.update(cx, |panel, cx| {
 131                            panel.deploy_rules_library(action, window, cx)
 132                        });
 133                    }
 134                })
 135                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 136                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 137                        workspace.focus_panel::<AgentPanel>(window, cx);
 138                        match &panel.read(cx).active_view {
 139                            ActiveView::Thread { thread, .. } => {
 140                                let thread = thread.read(cx).thread().clone();
 141                                AgentDiffPane::deploy_in_workspace(thread, workspace, window, cx);
 142                            }
 143                            ActiveView::ExternalAgentThread { .. }
 144                            | ActiveView::TextThread { .. }
 145                            | ActiveView::History
 146                            | ActiveView::Configuration => {}
 147                        }
 148                    }
 149                })
 150                .register_action(|workspace, _: &Follow, window, cx| {
 151                    workspace.follow(CollaboratorId::Agent, window, cx);
 152                })
 153                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 154                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 155                        return;
 156                    };
 157                    workspace.focus_panel::<AgentPanel>(window, cx);
 158                    panel.update(cx, |panel, cx| {
 159                        if let Some(message_editor) = panel.active_message_editor() {
 160                            message_editor.update(cx, |editor, cx| {
 161                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 162                            });
 163                        }
 164                    });
 165                })
 166                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 167                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 168                        workspace.focus_panel::<AgentPanel>(window, cx);
 169                        panel.update(cx, |panel, cx| {
 170                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 171                        });
 172                    }
 173                })
 174                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 175                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 176                        workspace.focus_panel::<AgentPanel>(window, cx);
 177                        panel.update(cx, |panel, cx| {
 178                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 179                        });
 180                    }
 181                })
 182                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 183                    AgentOnboardingModal::toggle(workspace, window, cx)
 184                })
 185                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 186                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 187                    window.refresh();
 188                })
 189                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 190                    OnboardingUpsell::set_dismissed(false, cx);
 191                })
 192                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 193                    TrialEndUpsell::set_dismissed(false, cx);
 194                });
 195        },
 196    )
 197    .detach();
 198}
 199
 200enum ActiveView {
 201    Thread {
 202        thread: Entity<ActiveThread>,
 203        change_title_editor: Entity<Editor>,
 204        message_editor: Entity<MessageEditor>,
 205        _subscriptions: Vec<gpui::Subscription>,
 206    },
 207    ExternalAgentThread {
 208        thread_view: Entity<AcpThreadView>,
 209    },
 210    TextThread {
 211        context_editor: Entity<TextThreadEditor>,
 212        title_editor: Entity<Editor>,
 213        buffer_search_bar: Entity<BufferSearchBar>,
 214        _subscriptions: Vec<gpui::Subscription>,
 215    },
 216    History,
 217    Configuration,
 218}
 219
 220enum WhichFontSize {
 221    AgentFont,
 222    BufferFont,
 223    None,
 224}
 225
 226impl ActiveView {
 227    pub fn which_font_size_used(&self) -> WhichFontSize {
 228        match self {
 229            ActiveView::Thread { .. }
 230            | ActiveView::ExternalAgentThread { .. }
 231            | ActiveView::History => WhichFontSize::AgentFont,
 232            ActiveView::TextThread { .. } => WhichFontSize::BufferFont,
 233            ActiveView::Configuration => WhichFontSize::None,
 234        }
 235    }
 236
 237    pub fn thread(
 238        active_thread: Entity<ActiveThread>,
 239        message_editor: Entity<MessageEditor>,
 240        window: &mut Window,
 241        cx: &mut Context<AgentPanel>,
 242    ) -> Self {
 243        let summary = active_thread.read(cx).summary(cx).or_default();
 244
 245        let editor = cx.new(|cx| {
 246            let mut editor = Editor::single_line(window, cx);
 247            editor.set_text(summary.clone(), window, cx);
 248            editor
 249        });
 250
 251        let subscriptions = vec![
 252            cx.subscribe(&message_editor, |this, _, event, cx| match event {
 253                MessageEditorEvent::Changed | MessageEditorEvent::EstimatedTokenCount => {
 254                    cx.notify();
 255                }
 256                MessageEditorEvent::ScrollThreadToBottom => match &this.active_view {
 257                    ActiveView::Thread { thread, .. } => {
 258                        thread.update(cx, |thread, cx| {
 259                            thread.scroll_to_bottom(cx);
 260                        });
 261                    }
 262                    ActiveView::ExternalAgentThread { .. } => {}
 263                    ActiveView::TextThread { .. }
 264                    | ActiveView::History
 265                    | ActiveView::Configuration => {}
 266                },
 267            }),
 268            window.subscribe(&editor, cx, {
 269                {
 270                    let thread = active_thread.clone();
 271                    move |editor, event, window, cx| match event {
 272                        EditorEvent::BufferEdited => {
 273                            let new_summary = editor.read(cx).text(cx);
 274
 275                            thread.update(cx, |thread, cx| {
 276                                thread.thread().update(cx, |thread, cx| {
 277                                    thread.set_summary(new_summary, cx);
 278                                });
 279                            })
 280                        }
 281                        EditorEvent::Blurred => {
 282                            if editor.read(cx).text(cx).is_empty() {
 283                                let summary = thread.read(cx).summary(cx).or_default();
 284
 285                                editor.update(cx, |editor, cx| {
 286                                    editor.set_text(summary, window, cx);
 287                                });
 288                            }
 289                        }
 290                        _ => {}
 291                    }
 292                }
 293            }),
 294            cx.subscribe(&active_thread, |_, _, event, cx| match &event {
 295                ActiveThreadEvent::EditingMessageTokenCountChanged => {
 296                    cx.notify();
 297                }
 298            }),
 299            cx.subscribe_in(&active_thread.read(cx).thread().clone(), window, {
 300                let editor = editor.clone();
 301                move |_, thread, event, window, cx| match event {
 302                    ThreadEvent::SummaryGenerated => {
 303                        let summary = thread.read(cx).summary().or_default();
 304
 305                        editor.update(cx, |editor, cx| {
 306                            editor.set_text(summary, window, cx);
 307                        })
 308                    }
 309                    ThreadEvent::MessageAdded(_) => {
 310                        cx.notify();
 311                    }
 312                    _ => {}
 313                }
 314            }),
 315        ];
 316
 317        Self::Thread {
 318            change_title_editor: editor,
 319            thread: active_thread,
 320            message_editor: message_editor,
 321            _subscriptions: subscriptions,
 322        }
 323    }
 324
 325    pub fn prompt_editor(
 326        context_editor: Entity<TextThreadEditor>,
 327        history_store: Entity<HistoryStore>,
 328        language_registry: Arc<LanguageRegistry>,
 329        window: &mut Window,
 330        cx: &mut App,
 331    ) -> Self {
 332        let title = context_editor.read(cx).title(cx).to_string();
 333
 334        let editor = cx.new(|cx| {
 335            let mut editor = Editor::single_line(window, cx);
 336            editor.set_text(title, window, cx);
 337            editor
 338        });
 339
 340        // This is a workaround for `editor.set_text` emitting a `BufferEdited` event, which would
 341        // cause a custom summary to be set. The presence of this custom summary would cause
 342        // summarization to not happen.
 343        let mut suppress_first_edit = true;
 344
 345        let subscriptions = vec![
 346            window.subscribe(&editor, cx, {
 347                {
 348                    let context_editor = context_editor.clone();
 349                    move |editor, event, window, cx| match event {
 350                        EditorEvent::BufferEdited => {
 351                            if suppress_first_edit {
 352                                suppress_first_edit = false;
 353                                return;
 354                            }
 355                            let new_summary = editor.read(cx).text(cx);
 356
 357                            context_editor.update(cx, |context_editor, cx| {
 358                                context_editor
 359                                    .context()
 360                                    .update(cx, |assistant_context, cx| {
 361                                        assistant_context.set_custom_summary(new_summary, cx);
 362                                    })
 363                            })
 364                        }
 365                        EditorEvent::Blurred => {
 366                            if editor.read(cx).text(cx).is_empty() {
 367                                let summary = context_editor
 368                                    .read(cx)
 369                                    .context()
 370                                    .read(cx)
 371                                    .summary()
 372                                    .or_default();
 373
 374                                editor.update(cx, |editor, cx| {
 375                                    editor.set_text(summary, window, cx);
 376                                });
 377                            }
 378                        }
 379                        _ => {}
 380                    }
 381                }
 382            }),
 383            window.subscribe(&context_editor.read(cx).context().clone(), cx, {
 384                let editor = editor.clone();
 385                move |assistant_context, event, window, cx| match event {
 386                    ContextEvent::SummaryGenerated => {
 387                        let summary = assistant_context.read(cx).summary().or_default();
 388
 389                        editor.update(cx, |editor, cx| {
 390                            editor.set_text(summary, window, cx);
 391                        })
 392                    }
 393                    ContextEvent::PathChanged { old_path, new_path } => {
 394                        history_store.update(cx, |history_store, cx| {
 395                            if let Some(old_path) = old_path {
 396                                history_store
 397                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 398                            } else {
 399                                history_store.push_recently_opened_entry(
 400                                    HistoryEntryId::Context(new_path.clone()),
 401                                    cx,
 402                                );
 403                            }
 404                        });
 405                    }
 406                    _ => {}
 407                }
 408            }),
 409        ];
 410
 411        let buffer_search_bar =
 412            cx.new(|cx| BufferSearchBar::new(Some(language_registry), window, cx));
 413        buffer_search_bar.update(cx, |buffer_search_bar, cx| {
 414            buffer_search_bar.set_active_pane_item(Some(&context_editor), window, cx)
 415        });
 416
 417        Self::TextThread {
 418            context_editor,
 419            title_editor: editor,
 420            buffer_search_bar,
 421            _subscriptions: subscriptions,
 422        }
 423    }
 424}
 425
 426pub struct AgentPanel {
 427    workspace: WeakEntity<Workspace>,
 428    user_store: Entity<UserStore>,
 429    project: Entity<Project>,
 430    fs: Arc<dyn Fs>,
 431    language_registry: Arc<LanguageRegistry>,
 432    thread_store: Entity<ThreadStore>,
 433    _default_model_subscription: Subscription,
 434    context_store: Entity<TextThreadStore>,
 435    prompt_store: Option<Entity<PromptStore>>,
 436    inline_assist_context_store: Entity<ContextStore>,
 437    configuration: Option<Entity<AgentConfiguration>>,
 438    configuration_subscription: Option<Subscription>,
 439    local_timezone: UtcOffset,
 440    active_view: ActiveView,
 441    acp_message_history:
 442        Rc<RefCell<crate::acp::MessageHistory<Vec<agent_client_protocol::ContentBlock>>>>,
 443    previous_view: Option<ActiveView>,
 444    history_store: Entity<HistoryStore>,
 445    history: Entity<ThreadHistory>,
 446    hovered_recent_history_item: Option<usize>,
 447    new_thread_menu_handle: PopoverMenuHandle<ContextMenu>,
 448    agent_panel_menu_handle: PopoverMenuHandle<ContextMenu>,
 449    assistant_navigation_menu_handle: PopoverMenuHandle<ContextMenu>,
 450    assistant_navigation_menu: Option<Entity<ContextMenu>>,
 451    width: Option<Pixels>,
 452    height: Option<Pixels>,
 453    zoomed: bool,
 454    pending_serialization: Option<Task<Result<()>>>,
 455    onboarding: Entity<AgentPanelOnboarding>,
 456}
 457
 458impl AgentPanel {
 459    fn serialize(&mut self, cx: &mut Context<Self>) {
 460        let width = self.width;
 461        self.pending_serialization = Some(cx.background_spawn(async move {
 462            KEY_VALUE_STORE
 463                .write_kvp(
 464                    AGENT_PANEL_KEY.into(),
 465                    serde_json::to_string(&SerializedAgentPanel { width })?,
 466                )
 467                .await?;
 468            anyhow::Ok(())
 469        }));
 470    }
 471    pub fn load(
 472        workspace: WeakEntity<Workspace>,
 473        prompt_builder: Arc<PromptBuilder>,
 474        mut cx: AsyncWindowContext,
 475    ) -> Task<Result<Entity<Self>>> {
 476        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
 477        cx.spawn(async move |cx| {
 478            let prompt_store = match prompt_store {
 479                Ok(prompt_store) => prompt_store.await.ok(),
 480                Err(_) => None,
 481            };
 482            let tools = cx.new(|_| ToolWorkingSet::default())?;
 483            let thread_store = workspace
 484                .update(cx, |workspace, cx| {
 485                    let project = workspace.project().clone();
 486                    ThreadStore::load(
 487                        project,
 488                        tools.clone(),
 489                        prompt_store.clone(),
 490                        prompt_builder.clone(),
 491                        cx,
 492                    )
 493                })?
 494                .await?;
 495
 496            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
 497            let context_store = workspace
 498                .update(cx, |workspace, cx| {
 499                    let project = workspace.project().clone();
 500                    assistant_context::ContextStore::new(
 501                        project,
 502                        prompt_builder.clone(),
 503                        slash_commands,
 504                        cx,
 505                    )
 506                })?
 507                .await?;
 508
 509            let serialized_panel = if let Some(panel) = cx
 510                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(AGENT_PANEL_KEY) })
 511                .await
 512                .log_err()
 513                .flatten()
 514            {
 515                Some(serde_json::from_str::<SerializedAgentPanel>(&panel)?)
 516            } else {
 517                None
 518            };
 519
 520            let panel = workspace.update_in(cx, |workspace, window, cx| {
 521                let panel = cx.new(|cx| {
 522                    Self::new(
 523                        workspace,
 524                        thread_store,
 525                        context_store,
 526                        prompt_store,
 527                        window,
 528                        cx,
 529                    )
 530                });
 531                if let Some(serialized_panel) = serialized_panel {
 532                    panel.update(cx, |panel, cx| {
 533                        panel.width = serialized_panel.width.map(|w| w.round());
 534                        cx.notify();
 535                    });
 536                }
 537                panel
 538            })?;
 539
 540            Ok(panel)
 541        })
 542    }
 543
 544    fn new(
 545        workspace: &Workspace,
 546        thread_store: Entity<ThreadStore>,
 547        context_store: Entity<TextThreadStore>,
 548        prompt_store: Option<Entity<PromptStore>>,
 549        window: &mut Window,
 550        cx: &mut Context<Self>,
 551    ) -> Self {
 552        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
 553        let fs = workspace.app_state().fs.clone();
 554        let user_store = workspace.app_state().user_store.clone();
 555        let project = workspace.project();
 556        let language_registry = project.read(cx).languages().clone();
 557        let client = workspace.client().clone();
 558        let workspace = workspace.weak_handle();
 559        let weak_self = cx.entity().downgrade();
 560
 561        let message_editor_context_store =
 562            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 563        let inline_assist_context_store =
 564            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 565
 566        let thread_id = thread.read(cx).id().clone();
 567
 568        let history_store = cx.new(|cx| {
 569            HistoryStore::new(
 570                thread_store.clone(),
 571                context_store.clone(),
 572                [HistoryEntryId::Thread(thread_id)],
 573                cx,
 574            )
 575        });
 576
 577        let message_editor = cx.new(|cx| {
 578            MessageEditor::new(
 579                fs.clone(),
 580                workspace.clone(),
 581                message_editor_context_store.clone(),
 582                prompt_store.clone(),
 583                thread_store.downgrade(),
 584                context_store.downgrade(),
 585                Some(history_store.downgrade()),
 586                thread.clone(),
 587                window,
 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                context_store.clone(),
 850                self.prompt_store.clone(),
 851                self.thread_store.downgrade(),
 852                self.context_store.downgrade(),
 853                Some(self.history_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(ActiveView::ExternalAgentThread { thread_view }, window, cx);
 974            })
 975        })
 976        .detach_and_log_err(cx);
 977    }
 978
 979    fn deploy_rules_library(
 980        &mut self,
 981        action: &OpenRulesLibrary,
 982        _window: &mut Window,
 983        cx: &mut Context<Self>,
 984    ) {
 985        open_rules_library(
 986            self.language_registry.clone(),
 987            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
 988            Rc::new(|| {
 989                Rc::new(SlashCommandCompletionProvider::new(
 990                    Arc::new(SlashCommandWorkingSet::default()),
 991                    None,
 992                    None,
 993                ))
 994            }),
 995            action
 996                .prompt_to_select
 997                .map(|uuid| UserPromptId(uuid).into()),
 998            cx,
 999        )
1000        .detach_and_log_err(cx);
1001    }
1002
1003    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1004        if matches!(self.active_view, ActiveView::History) {
1005            if let Some(previous_view) = self.previous_view.take() {
1006                self.set_active_view(previous_view, window, cx);
1007            }
1008        } else {
1009            self.thread_store
1010                .update(cx, |thread_store, cx| thread_store.reload(cx))
1011                .detach_and_log_err(cx);
1012            self.set_active_view(ActiveView::History, window, cx);
1013        }
1014        cx.notify();
1015    }
1016
1017    pub(crate) fn open_saved_prompt_editor(
1018        &mut self,
1019        path: Arc<Path>,
1020        window: &mut Window,
1021        cx: &mut Context<Self>,
1022    ) -> Task<Result<()>> {
1023        let context = self
1024            .context_store
1025            .update(cx, |store, cx| store.open_local_context(path, cx));
1026        cx.spawn_in(window, async move |this, cx| {
1027            let context = context.await?;
1028            this.update_in(cx, |this, window, cx| {
1029                this.open_prompt_editor(context, window, cx);
1030            })
1031        })
1032    }
1033
1034    pub(crate) fn open_prompt_editor(
1035        &mut self,
1036        context: Entity<AssistantContext>,
1037        window: &mut Window,
1038        cx: &mut Context<Self>,
1039    ) {
1040        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
1041            .log_err()
1042            .flatten();
1043        let editor = cx.new(|cx| {
1044            TextThreadEditor::for_context(
1045                context,
1046                self.fs.clone(),
1047                self.workspace.clone(),
1048                self.project.clone(),
1049                lsp_adapter_delegate,
1050                window,
1051                cx,
1052            )
1053        });
1054        self.set_active_view(
1055            ActiveView::prompt_editor(
1056                editor.clone(),
1057                self.history_store.clone(),
1058                self.language_registry.clone(),
1059                window,
1060                cx,
1061            ),
1062            window,
1063            cx,
1064        );
1065    }
1066
1067    pub(crate) fn open_thread_by_id(
1068        &mut self,
1069        thread_id: &ThreadId,
1070        window: &mut Window,
1071        cx: &mut Context<Self>,
1072    ) -> Task<Result<()>> {
1073        let open_thread_task = self
1074            .thread_store
1075            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
1076        cx.spawn_in(window, async move |this, cx| {
1077            let thread = open_thread_task.await?;
1078            this.update_in(cx, |this, window, cx| {
1079                this.open_thread(thread, window, cx);
1080                anyhow::Ok(())
1081            })??;
1082            Ok(())
1083        })
1084    }
1085
1086    pub(crate) fn open_thread(
1087        &mut self,
1088        thread: Entity<Thread>,
1089        window: &mut Window,
1090        cx: &mut Context<Self>,
1091    ) {
1092        let context_store = cx.new(|_cx| {
1093            ContextStore::new(
1094                self.project.downgrade(),
1095                Some(self.thread_store.downgrade()),
1096            )
1097        });
1098
1099        let active_thread = cx.new(|cx| {
1100            ActiveThread::new(
1101                thread.clone(),
1102                self.thread_store.clone(),
1103                self.context_store.clone(),
1104                context_store.clone(),
1105                self.language_registry.clone(),
1106                self.workspace.clone(),
1107                window,
1108                cx,
1109            )
1110        });
1111
1112        let message_editor = cx.new(|cx| {
1113            MessageEditor::new(
1114                self.fs.clone(),
1115                self.workspace.clone(),
1116                context_store,
1117                self.prompt_store.clone(),
1118                self.thread_store.downgrade(),
1119                self.context_store.downgrade(),
1120                Some(self.history_store.downgrade()),
1121                thread.clone(),
1122                window,
1123                cx,
1124            )
1125        });
1126        message_editor.focus_handle(cx).focus(window);
1127
1128        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1129        self.set_active_view(thread_view, window, cx);
1130        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
1131    }
1132
1133    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1134        match self.active_view {
1135            ActiveView::Configuration | ActiveView::History => {
1136                if let Some(previous_view) = self.previous_view.take() {
1137                    self.active_view = previous_view;
1138
1139                    match &self.active_view {
1140                        ActiveView::Thread { message_editor, .. } => {
1141                            message_editor.focus_handle(cx).focus(window);
1142                        }
1143                        ActiveView::ExternalAgentThread { thread_view } => {
1144                            thread_view.focus_handle(cx).focus(window);
1145                        }
1146                        ActiveView::TextThread { context_editor, .. } => {
1147                            context_editor.focus_handle(cx).focus(window);
1148                        }
1149                        ActiveView::History | ActiveView::Configuration => {}
1150                    }
1151                }
1152                cx.notify();
1153            }
1154            _ => {}
1155        }
1156    }
1157
1158    pub fn toggle_navigation_menu(
1159        &mut self,
1160        _: &ToggleNavigationMenu,
1161        window: &mut Window,
1162        cx: &mut Context<Self>,
1163    ) {
1164        self.assistant_navigation_menu_handle.toggle(window, cx);
1165    }
1166
1167    pub fn toggle_options_menu(
1168        &mut self,
1169        _: &ToggleOptionsMenu,
1170        window: &mut Window,
1171        cx: &mut Context<Self>,
1172    ) {
1173        self.agent_panel_menu_handle.toggle(window, cx);
1174    }
1175
1176    pub fn increase_font_size(
1177        &mut self,
1178        action: &IncreaseBufferFontSize,
1179        _: &mut Window,
1180        cx: &mut Context<Self>,
1181    ) {
1182        self.handle_font_size_action(action.persist, px(1.0), cx);
1183    }
1184
1185    pub fn decrease_font_size(
1186        &mut self,
1187        action: &DecreaseBufferFontSize,
1188        _: &mut Window,
1189        cx: &mut Context<Self>,
1190    ) {
1191        self.handle_font_size_action(action.persist, px(-1.0), cx);
1192    }
1193
1194    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1195        match self.active_view.which_font_size_used() {
1196            WhichFontSize::AgentFont => {
1197                if persist {
1198                    update_settings_file::<ThemeSettings>(
1199                        self.fs.clone(),
1200                        cx,
1201                        move |settings, cx| {
1202                            let agent_font_size =
1203                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1204                            let _ = settings
1205                                .agent_font_size
1206                                .insert(theme::clamp_font_size(agent_font_size).0);
1207                        },
1208                    );
1209                } else {
1210                    theme::adjust_agent_font_size(cx, |size| {
1211                        *size += delta;
1212                    });
1213                }
1214            }
1215            WhichFontSize::BufferFont => {
1216                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1217                // default handler that changes that font size.
1218                cx.propagate();
1219            }
1220            WhichFontSize::None => {}
1221        }
1222    }
1223
1224    pub fn reset_font_size(
1225        &mut self,
1226        action: &ResetBufferFontSize,
1227        _: &mut Window,
1228        cx: &mut Context<Self>,
1229    ) {
1230        if action.persist {
1231            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1232                settings.agent_font_size = None;
1233            });
1234        } else {
1235            theme::reset_agent_font_size(cx);
1236        }
1237    }
1238
1239    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1240        if self.zoomed {
1241            cx.emit(PanelEvent::ZoomOut);
1242        } else {
1243            if !self.focus_handle(cx).contains_focused(window, cx) {
1244                cx.focus_self(window);
1245            }
1246            cx.emit(PanelEvent::ZoomIn);
1247        }
1248    }
1249
1250    pub fn open_agent_diff(
1251        &mut self,
1252        _: &OpenAgentDiff,
1253        window: &mut Window,
1254        cx: &mut Context<Self>,
1255    ) {
1256        match &self.active_view {
1257            ActiveView::Thread { thread, .. } => {
1258                let thread = thread.read(cx).thread().clone();
1259                self.workspace
1260                    .update(cx, |workspace, cx| {
1261                        AgentDiffPane::deploy_in_workspace(
1262                            AgentDiffThread::Native(thread),
1263                            workspace,
1264                            window,
1265                            cx,
1266                        )
1267                    })
1268                    .log_err();
1269            }
1270            ActiveView::ExternalAgentThread { .. }
1271            | ActiveView::TextThread { .. }
1272            | ActiveView::History
1273            | ActiveView::Configuration => {}
1274        }
1275    }
1276
1277    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1278        let context_server_store = self.project.read(cx).context_server_store();
1279        let tools = self.thread_store.read(cx).tools();
1280        let fs = self.fs.clone();
1281
1282        self.set_active_view(ActiveView::Configuration, window, cx);
1283        self.configuration = Some(cx.new(|cx| {
1284            AgentConfiguration::new(
1285                fs,
1286                context_server_store,
1287                tools,
1288                self.language_registry.clone(),
1289                self.workspace.clone(),
1290                window,
1291                cx,
1292            )
1293        }));
1294
1295        if let Some(configuration) = self.configuration.as_ref() {
1296            self.configuration_subscription = Some(cx.subscribe_in(
1297                configuration,
1298                window,
1299                Self::handle_agent_configuration_event,
1300            ));
1301
1302            configuration.focus_handle(cx).focus(window);
1303        }
1304    }
1305
1306    pub(crate) fn open_active_thread_as_markdown(
1307        &mut self,
1308        _: &OpenActiveThreadAsMarkdown,
1309        window: &mut Window,
1310        cx: &mut Context<Self>,
1311    ) {
1312        let Some(workspace) = self.workspace.upgrade() else {
1313            return;
1314        };
1315
1316        match &self.active_view {
1317            ActiveView::Thread { thread, .. } => {
1318                active_thread::open_active_thread_as_markdown(
1319                    thread.read(cx).thread().clone(),
1320                    workspace,
1321                    window,
1322                    cx,
1323                )
1324                .detach_and_log_err(cx);
1325            }
1326            ActiveView::ExternalAgentThread { thread_view } => {
1327                thread_view
1328                    .update(cx, |thread_view, cx| {
1329                        thread_view.open_thread_as_markdown(workspace, window, cx)
1330                    })
1331                    .detach_and_log_err(cx);
1332            }
1333            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1334        }
1335    }
1336
1337    fn handle_agent_configuration_event(
1338        &mut self,
1339        _entity: &Entity<AgentConfiguration>,
1340        event: &AssistantConfigurationEvent,
1341        window: &mut Window,
1342        cx: &mut Context<Self>,
1343    ) {
1344        match event {
1345            AssistantConfigurationEvent::NewThread(provider) => {
1346                if LanguageModelRegistry::read_global(cx)
1347                    .default_model()
1348                    .map_or(true, |model| model.provider.id() != provider.id())
1349                {
1350                    if let Some(model) = provider.default_model(cx) {
1351                        update_settings_file::<AgentSettings>(
1352                            self.fs.clone(),
1353                            cx,
1354                            move |settings, _| settings.set_model(model),
1355                        );
1356                    }
1357                }
1358
1359                self.new_thread(&NewThread::default(), window, cx);
1360                if let Some((thread, model)) =
1361                    self.active_thread(cx).zip(provider.default_model(cx))
1362                {
1363                    thread.update(cx, |thread, cx| {
1364                        thread.set_configured_model(
1365                            Some(ConfiguredModel {
1366                                provider: provider.clone(),
1367                                model,
1368                            }),
1369                            cx,
1370                        );
1371                    });
1372                }
1373            }
1374        }
1375    }
1376
1377    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<Thread>> {
1378        match &self.active_view {
1379            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1380            _ => None,
1381        }
1382    }
1383
1384    pub(crate) fn delete_thread(
1385        &mut self,
1386        thread_id: &ThreadId,
1387        cx: &mut Context<Self>,
1388    ) -> Task<Result<()>> {
1389        self.thread_store
1390            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1391    }
1392
1393    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1394        let ActiveView::Thread { thread, .. } = &self.active_view else {
1395            return;
1396        };
1397
1398        let thread_state = thread.read(cx).thread().read(cx);
1399        if !thread_state.tool_use_limit_reached() {
1400            return;
1401        }
1402
1403        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1404        if let Some(model) = model {
1405            thread.update(cx, |active_thread, cx| {
1406                active_thread.thread().update(cx, |thread, cx| {
1407                    thread.insert_invisible_continue_message(cx);
1408                    thread.advance_prompt_id();
1409                    thread.send_to_model(
1410                        model,
1411                        CompletionIntent::UserPrompt,
1412                        Some(window.window_handle()),
1413                        cx,
1414                    );
1415                });
1416            });
1417        } else {
1418            log::warn!("No configured model available for continuation");
1419        }
1420    }
1421
1422    fn toggle_burn_mode(
1423        &mut self,
1424        _: &ToggleBurnMode,
1425        _window: &mut Window,
1426        cx: &mut Context<Self>,
1427    ) {
1428        let ActiveView::Thread { thread, .. } = &self.active_view else {
1429            return;
1430        };
1431
1432        thread.update(cx, |active_thread, cx| {
1433            active_thread.thread().update(cx, |thread, _cx| {
1434                let current_mode = thread.completion_mode();
1435
1436                thread.set_completion_mode(match current_mode {
1437                    CompletionMode::Burn => CompletionMode::Normal,
1438                    CompletionMode::Normal => CompletionMode::Burn,
1439                });
1440            });
1441        });
1442    }
1443
1444    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1445        match &self.active_view {
1446            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1447            _ => None,
1448        }
1449    }
1450
1451    pub(crate) fn delete_context(
1452        &mut self,
1453        path: Arc<Path>,
1454        cx: &mut Context<Self>,
1455    ) -> Task<Result<()>> {
1456        self.context_store
1457            .update(cx, |this, cx| this.delete_local_context(path, cx))
1458    }
1459
1460    fn set_active_view(
1461        &mut self,
1462        new_view: ActiveView,
1463        window: &mut Window,
1464        cx: &mut Context<Self>,
1465    ) {
1466        let current_is_history = matches!(self.active_view, ActiveView::History);
1467        let new_is_history = matches!(new_view, ActiveView::History);
1468
1469        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1470        let new_is_config = matches!(new_view, ActiveView::Configuration);
1471
1472        let current_is_special = current_is_history || current_is_config;
1473        let new_is_special = new_is_history || new_is_config;
1474
1475        match &self.active_view {
1476            ActiveView::Thread { thread, .. } => {
1477                let thread = thread.read(cx);
1478                if thread.is_empty() {
1479                    let id = thread.thread().read(cx).id().clone();
1480                    self.history_store.update(cx, |store, cx| {
1481                        store.remove_recently_opened_thread(id, cx);
1482                    });
1483                }
1484            }
1485            _ => {}
1486        }
1487
1488        match &new_view {
1489            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1490                let id = thread.read(cx).thread().read(cx).id().clone();
1491                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1492            }),
1493            ActiveView::TextThread { context_editor, .. } => {
1494                self.history_store.update(cx, |store, cx| {
1495                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1496                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1497                    }
1498                })
1499            }
1500            ActiveView::ExternalAgentThread { .. } => {}
1501            ActiveView::History | ActiveView::Configuration => {}
1502        }
1503
1504        if current_is_special && !new_is_special {
1505            self.active_view = new_view;
1506        } else if !current_is_special && new_is_special {
1507            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1508        } else {
1509            if !new_is_special {
1510                self.previous_view = None;
1511            }
1512            self.active_view = new_view;
1513        }
1514
1515        self.acp_message_history.borrow_mut().reset_position();
1516
1517        self.focus_handle(cx).focus(window);
1518    }
1519
1520    fn populate_recently_opened_menu_section(
1521        mut menu: ContextMenu,
1522        panel: Entity<Self>,
1523        cx: &mut Context<ContextMenu>,
1524    ) -> ContextMenu {
1525        let entries = panel
1526            .read(cx)
1527            .history_store
1528            .read(cx)
1529            .recently_opened_entries(cx);
1530
1531        if entries.is_empty() {
1532            return menu;
1533        }
1534
1535        menu = menu.header("Recently Opened");
1536
1537        for entry in entries {
1538            let title = entry.title().clone();
1539            let id = entry.id();
1540
1541            menu = menu.entry_with_end_slot_on_hover(
1542                title,
1543                None,
1544                {
1545                    let panel = panel.downgrade();
1546                    let id = id.clone();
1547                    move |window, cx| {
1548                        let id = id.clone();
1549                        panel
1550                            .update(cx, move |this, cx| match id {
1551                                HistoryEntryId::Thread(id) => this
1552                                    .open_thread_by_id(&id, window, cx)
1553                                    .detach_and_log_err(cx),
1554                                HistoryEntryId::Context(path) => this
1555                                    .open_saved_prompt_editor(path.clone(), window, cx)
1556                                    .detach_and_log_err(cx),
1557                            })
1558                            .ok();
1559                    }
1560                },
1561                IconName::Close,
1562                "Close Entry".into(),
1563                {
1564                    let panel = panel.downgrade();
1565                    let id = id.clone();
1566                    move |_window, cx| {
1567                        panel
1568                            .update(cx, |this, cx| {
1569                                this.history_store.update(cx, |history_store, cx| {
1570                                    history_store.remove_recently_opened_entry(&id, cx);
1571                                });
1572                            })
1573                            .ok();
1574                    }
1575                },
1576            );
1577        }
1578
1579        menu = menu.separator();
1580
1581        menu
1582    }
1583}
1584
1585impl Focusable for AgentPanel {
1586    fn focus_handle(&self, cx: &App) -> FocusHandle {
1587        match &self.active_view {
1588            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1589            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1590            ActiveView::History => self.history.focus_handle(cx),
1591            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1592            ActiveView::Configuration => {
1593                if let Some(configuration) = self.configuration.as_ref() {
1594                    configuration.focus_handle(cx)
1595                } else {
1596                    cx.focus_handle()
1597                }
1598            }
1599        }
1600    }
1601}
1602
1603fn agent_panel_dock_position(cx: &App) -> DockPosition {
1604    match AgentSettings::get_global(cx).dock {
1605        AgentDockPosition::Left => DockPosition::Left,
1606        AgentDockPosition::Bottom => DockPosition::Bottom,
1607        AgentDockPosition::Right => DockPosition::Right,
1608    }
1609}
1610
1611impl EventEmitter<PanelEvent> for AgentPanel {}
1612
1613impl Panel for AgentPanel {
1614    fn persistent_name() -> &'static str {
1615        "AgentPanel"
1616    }
1617
1618    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1619        agent_panel_dock_position(cx)
1620    }
1621
1622    fn position_is_valid(&self, position: DockPosition) -> bool {
1623        position != DockPosition::Bottom
1624    }
1625
1626    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1627        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1628            let dock = match position {
1629                DockPosition::Left => AgentDockPosition::Left,
1630                DockPosition::Bottom => AgentDockPosition::Bottom,
1631                DockPosition::Right => AgentDockPosition::Right,
1632            };
1633            settings.set_dock(dock);
1634        });
1635    }
1636
1637    fn size(&self, window: &Window, cx: &App) -> Pixels {
1638        let settings = AgentSettings::get_global(cx);
1639        match self.position(window, cx) {
1640            DockPosition::Left | DockPosition::Right => {
1641                self.width.unwrap_or(settings.default_width)
1642            }
1643            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1644        }
1645    }
1646
1647    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1648        match self.position(window, cx) {
1649            DockPosition::Left | DockPosition::Right => self.width = size,
1650            DockPosition::Bottom => self.height = size,
1651        }
1652        self.serialize(cx);
1653        cx.notify();
1654    }
1655
1656    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1657
1658    fn remote_id() -> Option<proto::PanelId> {
1659        Some(proto::PanelId::AssistantPanel)
1660    }
1661
1662    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1663        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1664    }
1665
1666    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1667        Some("Agent Panel")
1668    }
1669
1670    fn toggle_action(&self) -> Box<dyn Action> {
1671        Box::new(ToggleFocus)
1672    }
1673
1674    fn activation_priority(&self) -> u32 {
1675        3
1676    }
1677
1678    fn enabled(&self, cx: &App) -> bool {
1679        DisableAiSettings::get_global(cx).disable_ai.not() && AgentSettings::get_global(cx).enabled
1680    }
1681
1682    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1683        self.zoomed
1684    }
1685
1686    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1687        self.zoomed = zoomed;
1688        cx.notify();
1689    }
1690}
1691
1692impl AgentPanel {
1693    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1694        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1695
1696        let content = match &self.active_view {
1697            ActiveView::Thread {
1698                thread: active_thread,
1699                change_title_editor,
1700                ..
1701            } => {
1702                let state = {
1703                    let active_thread = active_thread.read(cx);
1704                    if active_thread.is_empty() {
1705                        &ThreadSummary::Pending
1706                    } else {
1707                        active_thread.summary(cx)
1708                    }
1709                };
1710
1711                match state {
1712                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1713                        .truncate()
1714                        .into_any_element(),
1715                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1716                        .truncate()
1717                        .into_any_element(),
1718                    ThreadSummary::Ready(_) => div()
1719                        .w_full()
1720                        .child(change_title_editor.clone())
1721                        .into_any_element(),
1722                    ThreadSummary::Error => h_flex()
1723                        .w_full()
1724                        .child(change_title_editor.clone())
1725                        .child(
1726                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1727                                .on_click({
1728                                    let active_thread = active_thread.clone();
1729                                    move |_, _window, cx| {
1730                                        active_thread.update(cx, |thread, cx| {
1731                                            thread.regenerate_summary(cx);
1732                                        });
1733                                    }
1734                                })
1735                                .tooltip(move |_window, cx| {
1736                                    cx.new(|_| {
1737                                        Tooltip::new("Failed to generate title")
1738                                            .meta("Click to try again")
1739                                    })
1740                                    .into()
1741                                }),
1742                        )
1743                        .into_any_element(),
1744                }
1745            }
1746            ActiveView::ExternalAgentThread { thread_view } => {
1747                Label::new(thread_view.read(cx).title(cx))
1748                    .truncate()
1749                    .into_any_element()
1750            }
1751            ActiveView::TextThread {
1752                title_editor,
1753                context_editor,
1754                ..
1755            } => {
1756                let summary = context_editor.read(cx).context().read(cx).summary();
1757
1758                match summary {
1759                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1760                        .truncate()
1761                        .into_any_element(),
1762                    ContextSummary::Content(summary) => {
1763                        if summary.done {
1764                            div()
1765                                .w_full()
1766                                .child(title_editor.clone())
1767                                .into_any_element()
1768                        } else {
1769                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
1770                                .truncate()
1771                                .into_any_element()
1772                        }
1773                    }
1774                    ContextSummary::Error => h_flex()
1775                        .w_full()
1776                        .child(title_editor.clone())
1777                        .child(
1778                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1779                                .on_click({
1780                                    let context_editor = context_editor.clone();
1781                                    move |_, _window, cx| {
1782                                        context_editor.update(cx, |context_editor, cx| {
1783                                            context_editor.regenerate_summary(cx);
1784                                        });
1785                                    }
1786                                })
1787                                .tooltip(move |_window, cx| {
1788                                    cx.new(|_| {
1789                                        Tooltip::new("Failed to generate title")
1790                                            .meta("Click to try again")
1791                                    })
1792                                    .into()
1793                                }),
1794                        )
1795                        .into_any_element(),
1796                }
1797            }
1798            ActiveView::History => Label::new("History").truncate().into_any_element(),
1799            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
1800        };
1801
1802        h_flex()
1803            .key_context("TitleEditor")
1804            .id("TitleEditor")
1805            .flex_grow()
1806            .w_full()
1807            .max_w_full()
1808            .overflow_x_scroll()
1809            .child(content)
1810            .into_any()
1811    }
1812
1813    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1814        let user_store = self.user_store.read(cx);
1815        let usage = user_store.model_request_usage();
1816
1817        let account_url = zed_urls::account_url(cx);
1818
1819        let focus_handle = self.focus_handle(cx);
1820
1821        let go_back_button = div().child(
1822            IconButton::new("go-back", IconName::ArrowLeft)
1823                .icon_size(IconSize::Small)
1824                .on_click(cx.listener(|this, _, window, cx| {
1825                    this.go_back(&workspace::GoBack, window, cx);
1826                }))
1827                .tooltip({
1828                    let focus_handle = focus_handle.clone();
1829                    move |window, cx| {
1830                        Tooltip::for_action_in(
1831                            "Go Back",
1832                            &workspace::GoBack,
1833                            &focus_handle,
1834                            window,
1835                            cx,
1836                        )
1837                    }
1838                }),
1839        );
1840
1841        let recent_entries_menu = div().child(
1842            PopoverMenu::new("agent-nav-menu")
1843                .trigger_with_tooltip(
1844                    IconButton::new("agent-nav-menu", IconName::MenuAlt)
1845                        .icon_size(IconSize::Small)
1846                        .style(ui::ButtonStyle::Subtle),
1847                    {
1848                        let focus_handle = focus_handle.clone();
1849                        move |window, cx| {
1850                            Tooltip::for_action_in(
1851                                "Toggle Panel Menu",
1852                                &ToggleNavigationMenu,
1853                                &focus_handle,
1854                                window,
1855                                cx,
1856                            )
1857                        }
1858                    },
1859                )
1860                .anchor(Corner::TopLeft)
1861                .with_handle(self.assistant_navigation_menu_handle.clone())
1862                .menu({
1863                    let menu = self.assistant_navigation_menu.clone();
1864                    move |window, cx| {
1865                        if let Some(menu) = menu.as_ref() {
1866                            menu.update(cx, |_, cx| {
1867                                cx.defer_in(window, |menu, window, cx| {
1868                                    menu.rebuild(window, cx);
1869                                });
1870                            })
1871                        }
1872                        menu.clone()
1873                    }
1874                }),
1875        );
1876
1877        let full_screen_label = if self.is_zoomed(window, cx) {
1878            "Disable Full Screen"
1879        } else {
1880            "Enable Full Screen"
1881        };
1882
1883        let active_thread = match &self.active_view {
1884            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1885            ActiveView::ExternalAgentThread { .. }
1886            | ActiveView::TextThread { .. }
1887            | ActiveView::History
1888            | ActiveView::Configuration => None,
1889        };
1890
1891        let new_thread_menu = PopoverMenu::new("new_thread_menu")
1892            .trigger_with_tooltip(
1893                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
1894                Tooltip::text("New Thread…"),
1895            )
1896            .anchor(Corner::TopRight)
1897            .with_handle(self.new_thread_menu_handle.clone())
1898            .menu({
1899                let focus_handle = focus_handle.clone();
1900                move |window, cx| {
1901                    let active_thread = active_thread.clone();
1902                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
1903                        menu = menu
1904                            .context(focus_handle.clone())
1905                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1906                                this.header("Zed Agent")
1907                            })
1908                            .when_some(active_thread, |this, active_thread| {
1909                                let thread = active_thread.read(cx);
1910
1911                                if !thread.is_empty() {
1912                                    let thread_id = thread.id().clone();
1913                                    this.item(
1914                                        ContextMenuEntry::new("New From Summary")
1915                                            .icon(IconName::ThreadFromSummary)
1916                                            .icon_color(Color::Muted)
1917                                            .handler(move |window, cx| {
1918                                                window.dispatch_action(
1919                                                    Box::new(NewThread {
1920                                                        from_thread_id: Some(thread_id.clone()),
1921                                                    }),
1922                                                    cx,
1923                                                );
1924                                            }),
1925                                    )
1926                                } else {
1927                                    this
1928                                }
1929                            })
1930                            .item(
1931                                ContextMenuEntry::new("New Thread")
1932                                    .icon(IconName::Thread)
1933                                    .icon_color(Color::Muted)
1934                                    .action(NewThread::default().boxed_clone())
1935                                    .handler(move |window, cx| {
1936                                        window.dispatch_action(
1937                                            NewThread::default().boxed_clone(),
1938                                            cx,
1939                                        );
1940                                    }),
1941                            )
1942                            .item(
1943                                ContextMenuEntry::new("New Text Thread")
1944                                    .icon(IconName::TextThread)
1945                                    .icon_color(Color::Muted)
1946                                    .action(NewTextThread.boxed_clone())
1947                                    .handler(move |window, cx| {
1948                                        window.dispatch_action(NewTextThread.boxed_clone(), cx);
1949                                    }),
1950                            )
1951                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
1952                                this.separator()
1953                                    .header("External Agents")
1954                                    .item(
1955                                        ContextMenuEntry::new("New Gemini Thread")
1956                                            .icon(IconName::AiGemini)
1957                                            .icon_color(Color::Muted)
1958                                            .handler(move |window, cx| {
1959                                                window.dispatch_action(
1960                                                    NewExternalAgentThread {
1961                                                        agent: Some(crate::ExternalAgent::Gemini),
1962                                                    }
1963                                                    .boxed_clone(),
1964                                                    cx,
1965                                                );
1966                                            }),
1967                                    )
1968                                    .item(
1969                                        ContextMenuEntry::new("New Claude Code Thread")
1970                                            .icon(IconName::AiClaude)
1971                                            .icon_color(Color::Muted)
1972                                            .handler(move |window, cx| {
1973                                                window.dispatch_action(
1974                                                    NewExternalAgentThread {
1975                                                        agent: Some(
1976                                                            crate::ExternalAgent::ClaudeCode,
1977                                                        ),
1978                                                    }
1979                                                    .boxed_clone(),
1980                                                    cx,
1981                                                );
1982                                            }),
1983                                    )
1984                            });
1985                        menu
1986                    }))
1987                }
1988            });
1989
1990        let agent_panel_menu = PopoverMenu::new("agent-options-menu")
1991            .trigger_with_tooltip(
1992                IconButton::new("agent-options-menu", IconName::Ellipsis)
1993                    .icon_size(IconSize::Small),
1994                {
1995                    let focus_handle = focus_handle.clone();
1996                    move |window, cx| {
1997                        Tooltip::for_action_in(
1998                            "Toggle Agent Menu",
1999                            &ToggleOptionsMenu,
2000                            &focus_handle,
2001                            window,
2002                            cx,
2003                        )
2004                    }
2005                },
2006            )
2007            .anchor(Corner::TopRight)
2008            .with_handle(self.agent_panel_menu_handle.clone())
2009            .menu({
2010                let focus_handle = focus_handle.clone();
2011                move |window, cx| {
2012                    Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2013                        menu = menu.context(focus_handle.clone());
2014                        if let Some(usage) = usage {
2015                            menu = menu
2016                                .header_with_link("Prompt Usage", "Manage", account_url.clone())
2017                                .custom_entry(
2018                                    move |_window, cx| {
2019                                        let used_percentage = match usage.limit {
2020                                            UsageLimit::Limited(limit) => {
2021                                                Some((usage.amount as f32 / limit as f32) * 100.)
2022                                            }
2023                                            UsageLimit::Unlimited => None,
2024                                        };
2025
2026                                        h_flex()
2027                                            .flex_1()
2028                                            .gap_1p5()
2029                                            .children(used_percentage.map(|percent| {
2030                                                ProgressBar::new("usage", percent, 100., cx)
2031                                            }))
2032                                            .child(
2033                                                Label::new(match usage.limit {
2034                                                    UsageLimit::Limited(limit) => {
2035                                                        format!("{} / {limit}", usage.amount)
2036                                                    }
2037                                                    UsageLimit::Unlimited => {
2038                                                        format!("{} / ∞", usage.amount)
2039                                                    }
2040                                                })
2041                                                .size(LabelSize::Small)
2042                                                .color(Color::Muted),
2043                                            )
2044                                            .into_any_element()
2045                                    },
2046                                    move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2047                                )
2048                                .separator()
2049                        }
2050
2051                        menu = menu
2052                            .header("MCP Servers")
2053                            .action(
2054                                "View Server Extensions",
2055                                Box::new(zed_actions::Extensions {
2056                                    category_filter: Some(
2057                                        zed_actions::ExtensionCategoryFilter::ContextServers,
2058                                    ),
2059                                    id: None,
2060                                }),
2061                            )
2062                            .action("Add Custom Server…", Box::new(AddContextServer))
2063                            .separator();
2064
2065                        menu = menu
2066                            .action("Rules…", Box::new(OpenRulesLibrary::default()))
2067                            .action("Settings", Box::new(OpenSettings))
2068                            .separator()
2069                            .action(full_screen_label, Box::new(ToggleZoom));
2070                        menu
2071                    }))
2072                }
2073            });
2074
2075        h_flex()
2076            .id("assistant-toolbar")
2077            .h(Tab::container_height(cx))
2078            .max_w_full()
2079            .flex_none()
2080            .justify_between()
2081            .gap_2()
2082            .bg(cx.theme().colors().tab_bar_background)
2083            .border_b_1()
2084            .border_color(cx.theme().colors().border)
2085            .child(
2086                h_flex()
2087                    .size_full()
2088                    .pl_1()
2089                    .gap_1()
2090                    .child(match &self.active_view {
2091                        ActiveView::History | ActiveView::Configuration => go_back_button,
2092                        _ => recent_entries_menu,
2093                    })
2094                    .child(self.render_title_view(window, cx)),
2095            )
2096            .child(
2097                h_flex()
2098                    .h_full()
2099                    .gap_2()
2100                    .children(self.render_token_count(cx))
2101                    .child(
2102                        h_flex()
2103                            .h_full()
2104                            .gap(DynamicSpacing::Base02.rems(cx))
2105                            .px(DynamicSpacing::Base08.rems(cx))
2106                            .border_l_1()
2107                            .border_color(cx.theme().colors().border)
2108                            .child(new_thread_menu)
2109                            .child(agent_panel_menu),
2110                    ),
2111            )
2112    }
2113
2114    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2115        match &self.active_view {
2116            ActiveView::Thread {
2117                thread,
2118                message_editor,
2119                ..
2120            } => {
2121                let active_thread = thread.read(cx);
2122                let message_editor = message_editor.read(cx);
2123
2124                let editor_empty = message_editor.is_editor_fully_empty(cx);
2125
2126                if active_thread.is_empty() && editor_empty {
2127                    return None;
2128                }
2129
2130                let thread = active_thread.thread().read(cx);
2131                let is_generating = thread.is_generating();
2132                let conversation_token_usage = thread.total_token_usage()?;
2133
2134                let (total_token_usage, is_estimating) =
2135                    if let Some((editing_message_id, unsent_tokens)) =
2136                        active_thread.editing_message_id()
2137                    {
2138                        let combined = thread
2139                            .token_usage_up_to_message(editing_message_id)
2140                            .add(unsent_tokens);
2141
2142                        (combined, unsent_tokens > 0)
2143                    } else {
2144                        let unsent_tokens =
2145                            message_editor.last_estimated_token_count().unwrap_or(0);
2146                        let combined = conversation_token_usage.add(unsent_tokens);
2147
2148                        (combined, unsent_tokens > 0)
2149                    };
2150
2151                let is_waiting_to_update_token_count =
2152                    message_editor.is_waiting_to_update_token_count();
2153
2154                if total_token_usage.total == 0 {
2155                    return None;
2156                }
2157
2158                let token_color = match total_token_usage.ratio() {
2159                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2160                    TokenUsageRatio::Normal => Color::Muted,
2161                    TokenUsageRatio::Warning => Color::Warning,
2162                    TokenUsageRatio::Exceeded => Color::Error,
2163                };
2164
2165                let token_count = h_flex()
2166                    .id("token-count")
2167                    .flex_shrink_0()
2168                    .gap_0p5()
2169                    .when(!is_generating && is_estimating, |parent| {
2170                        parent
2171                            .child(
2172                                h_flex()
2173                                    .mr_1()
2174                                    .size_2p5()
2175                                    .justify_center()
2176                                    .rounded_full()
2177                                    .bg(cx.theme().colors().text.opacity(0.1))
2178                                    .child(
2179                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2180                                    ),
2181                            )
2182                            .tooltip(move |window, cx| {
2183                                Tooltip::with_meta(
2184                                    "Estimated New Token Count",
2185                                    None,
2186                                    format!(
2187                                        "Current Conversation Tokens: {}",
2188                                        humanize_token_count(conversation_token_usage.total)
2189                                    ),
2190                                    window,
2191                                    cx,
2192                                )
2193                            })
2194                    })
2195                    .child(
2196                        Label::new(humanize_token_count(total_token_usage.total))
2197                            .size(LabelSize::Small)
2198                            .color(token_color)
2199                            .map(|label| {
2200                                if is_generating || is_waiting_to_update_token_count {
2201                                    label
2202                                        .with_animation(
2203                                            "used-tokens-label",
2204                                            Animation::new(Duration::from_secs(2))
2205                                                .repeat()
2206                                                .with_easing(pulsating_between(0.6, 1.)),
2207                                            |label, delta| label.alpha(delta),
2208                                        )
2209                                        .into_any()
2210                                } else {
2211                                    label.into_any_element()
2212                                }
2213                            }),
2214                    )
2215                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2216                    .child(
2217                        Label::new(humanize_token_count(total_token_usage.max))
2218                            .size(LabelSize::Small)
2219                            .color(Color::Muted),
2220                    )
2221                    .into_any();
2222
2223                Some(token_count)
2224            }
2225            ActiveView::TextThread { context_editor, .. } => {
2226                let element = render_remaining_tokens(context_editor, cx)?;
2227
2228                Some(element.into_any_element())
2229            }
2230            ActiveView::ExternalAgentThread { .. }
2231            | ActiveView::History
2232            | ActiveView::Configuration => {
2233                return None;
2234            }
2235        }
2236    }
2237
2238    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2239        if TrialEndUpsell::dismissed() {
2240            return false;
2241        }
2242
2243        match &self.active_view {
2244            ActiveView::Thread { thread, .. } => {
2245                if thread
2246                    .read(cx)
2247                    .thread()
2248                    .read(cx)
2249                    .configured_model()
2250                    .map_or(false, |model| {
2251                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2252                    })
2253                {
2254                    return false;
2255                }
2256            }
2257            ActiveView::TextThread { .. } => {
2258                if LanguageModelRegistry::global(cx)
2259                    .read(cx)
2260                    .default_model()
2261                    .map_or(false, |model| {
2262                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2263                    })
2264                {
2265                    return false;
2266                }
2267            }
2268            ActiveView::ExternalAgentThread { .. }
2269            | ActiveView::History
2270            | ActiveView::Configuration => return false,
2271        }
2272
2273        let plan = self.user_store.read(cx).plan();
2274        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2275
2276        matches!(plan, Some(Plan::ZedFree)) && has_previous_trial
2277    }
2278
2279    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2280        if OnboardingUpsell::dismissed() {
2281            return false;
2282        }
2283
2284        match &self.active_view {
2285            ActiveView::Thread { .. } | ActiveView::TextThread { .. } => {
2286                let history_is_empty = self
2287                    .history_store
2288                    .update(cx, |store, cx| store.recent_entries(1, cx).is_empty());
2289
2290                let has_configured_non_zed_providers = LanguageModelRegistry::read_global(cx)
2291                    .providers()
2292                    .iter()
2293                    .any(|provider| {
2294                        provider.is_authenticated(cx)
2295                            && provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2296                    });
2297
2298                history_is_empty || !has_configured_non_zed_providers
2299            }
2300            ActiveView::ExternalAgentThread { .. }
2301            | ActiveView::History
2302            | ActiveView::Configuration => false,
2303        }
2304    }
2305
2306    fn render_onboarding(
2307        &self,
2308        _window: &mut Window,
2309        cx: &mut Context<Self>,
2310    ) -> Option<impl IntoElement> {
2311        if !self.should_render_onboarding(cx) {
2312            return None;
2313        }
2314
2315        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2316        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2317
2318        Some(
2319            div()
2320                .when(thread_view, |this| {
2321                    this.size_full().bg(cx.theme().colors().panel_background)
2322                })
2323                .when(text_thread_view, |this| {
2324                    this.bg(cx.theme().colors().editor_background)
2325                })
2326                .child(self.onboarding.clone()),
2327        )
2328    }
2329
2330    fn render_trial_end_upsell(
2331        &self,
2332        _window: &mut Window,
2333        cx: &mut Context<Self>,
2334    ) -> Option<impl IntoElement> {
2335        if !self.should_render_trial_end_upsell(cx) {
2336            return None;
2337        }
2338
2339        Some(EndTrialUpsell::new(Arc::new({
2340            let this = cx.entity();
2341            move |_, cx| {
2342                this.update(cx, |_this, cx| {
2343                    TrialEndUpsell::set_dismissed(true, cx);
2344                    cx.notify();
2345                });
2346            }
2347        })))
2348    }
2349
2350    fn render_empty_state_section_header(
2351        &self,
2352        label: impl Into<SharedString>,
2353        action_slot: Option<AnyElement>,
2354        cx: &mut Context<Self>,
2355    ) -> impl IntoElement {
2356        h_flex()
2357            .mt_2()
2358            .pl_1p5()
2359            .pb_1()
2360            .w_full()
2361            .justify_between()
2362            .border_b_1()
2363            .border_color(cx.theme().colors().border_variant)
2364            .child(
2365                Label::new(label.into())
2366                    .size(LabelSize::Small)
2367                    .color(Color::Muted),
2368            )
2369            .children(action_slot)
2370    }
2371
2372    fn render_thread_empty_state(
2373        &self,
2374        window: &mut Window,
2375        cx: &mut Context<Self>,
2376    ) -> impl IntoElement {
2377        let recent_history = self
2378            .history_store
2379            .update(cx, |this, cx| this.recent_entries(6, cx));
2380
2381        let model_registry = LanguageModelRegistry::read_global(cx);
2382
2383        let configuration_error =
2384            model_registry.configuration_error(model_registry.default_model(), cx);
2385
2386        let no_error = configuration_error.is_none();
2387        let focus_handle = self.focus_handle(cx);
2388
2389        v_flex()
2390            .size_full()
2391            .bg(cx.theme().colors().panel_background)
2392            .when(recent_history.is_empty(), |this| {
2393                this.child(
2394                    v_flex()
2395                        .size_full()
2396                        .mx_auto()
2397                        .justify_center()
2398                        .items_center()
2399                        .gap_1()
2400                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2401                        .when(no_error, |parent| {
2402                            parent
2403                                .child(h_flex().child(
2404                                    Label::new("Ask and build anything.").color(Color::Muted),
2405                                ))
2406                                .child(
2407                                    v_flex()
2408                                        .mt_2()
2409                                        .gap_1()
2410                                        .max_w_48()
2411                                        .child(
2412                                            Button::new("context", "Add Context")
2413                                                .label_size(LabelSize::Small)
2414                                                .icon(IconName::FileCode)
2415                                                .icon_position(IconPosition::Start)
2416                                                .icon_size(IconSize::Small)
2417                                                .icon_color(Color::Muted)
2418                                                .full_width()
2419                                                .key_binding(KeyBinding::for_action_in(
2420                                                    &ToggleContextPicker,
2421                                                    &focus_handle,
2422                                                    window,
2423                                                    cx,
2424                                                ))
2425                                                .on_click(|_event, window, cx| {
2426                                                    window.dispatch_action(
2427                                                        ToggleContextPicker.boxed_clone(),
2428                                                        cx,
2429                                                    )
2430                                                }),
2431                                        )
2432                                        .child(
2433                                            Button::new("mode", "Switch Model")
2434                                                .label_size(LabelSize::Small)
2435                                                .icon(IconName::DatabaseZap)
2436                                                .icon_position(IconPosition::Start)
2437                                                .icon_size(IconSize::Small)
2438                                                .icon_color(Color::Muted)
2439                                                .full_width()
2440                                                .key_binding(KeyBinding::for_action_in(
2441                                                    &ToggleModelSelector,
2442                                                    &focus_handle,
2443                                                    window,
2444                                                    cx,
2445                                                ))
2446                                                .on_click(|_event, window, cx| {
2447                                                    window.dispatch_action(
2448                                                        ToggleModelSelector.boxed_clone(),
2449                                                        cx,
2450                                                    )
2451                                                }),
2452                                        )
2453                                        .child(
2454                                            Button::new("settings", "View Settings")
2455                                                .label_size(LabelSize::Small)
2456                                                .icon(IconName::Settings)
2457                                                .icon_position(IconPosition::Start)
2458                                                .icon_size(IconSize::Small)
2459                                                .icon_color(Color::Muted)
2460                                                .full_width()
2461                                                .key_binding(KeyBinding::for_action_in(
2462                                                    &OpenSettings,
2463                                                    &focus_handle,
2464                                                    window,
2465                                                    cx,
2466                                                ))
2467                                                .on_click(|_event, window, cx| {
2468                                                    window.dispatch_action(
2469                                                        OpenSettings.boxed_clone(),
2470                                                        cx,
2471                                                    )
2472                                                }),
2473                                        ),
2474                                )
2475                        })
2476                        .when_some(configuration_error.as_ref(), |this, err| {
2477                            this.child(self.render_configuration_error(
2478                                err,
2479                                &focus_handle,
2480                                window,
2481                                cx,
2482                            ))
2483                        }),
2484                )
2485            })
2486            .when(!recent_history.is_empty(), |parent| {
2487                let focus_handle = focus_handle.clone();
2488                parent
2489                    .overflow_hidden()
2490                    .p_1p5()
2491                    .justify_end()
2492                    .gap_1()
2493                    .child(
2494                        self.render_empty_state_section_header(
2495                            "Recent",
2496                            Some(
2497                                Button::new("view-history", "View All")
2498                                    .style(ButtonStyle::Subtle)
2499                                    .label_size(LabelSize::Small)
2500                                    .key_binding(
2501                                        KeyBinding::for_action_in(
2502                                            &OpenHistory,
2503                                            &self.focus_handle(cx),
2504                                            window,
2505                                            cx,
2506                                        )
2507                                        .map(|kb| kb.size(rems_from_px(12.))),
2508                                    )
2509                                    .on_click(move |_event, window, cx| {
2510                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2511                                    })
2512                                    .into_any_element(),
2513                            ),
2514                            cx,
2515                        ),
2516                    )
2517                    .child(
2518                        v_flex()
2519                            .gap_1()
2520                            .children(recent_history.into_iter().enumerate().map(
2521                                |(index, entry)| {
2522                                    // TODO: Add keyboard navigation.
2523                                    let is_hovered =
2524                                        self.hovered_recent_history_item == Some(index);
2525                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2526                                        .hovered(is_hovered)
2527                                        .on_hover(cx.listener(
2528                                            move |this, is_hovered, _window, cx| {
2529                                                if *is_hovered {
2530                                                    this.hovered_recent_history_item = Some(index);
2531                                                } else if this.hovered_recent_history_item
2532                                                    == Some(index)
2533                                                {
2534                                                    this.hovered_recent_history_item = None;
2535                                                }
2536                                                cx.notify();
2537                                            },
2538                                        ))
2539                                        .into_any_element()
2540                                },
2541                            )),
2542                    )
2543                    .child(self.render_empty_state_section_header("Start", None, cx))
2544                    .child(
2545                        v_flex()
2546                            .p_1()
2547                            .gap_2()
2548                            .child(
2549                                h_flex()
2550                                    .w_full()
2551                                    .gap_2()
2552                                    .child(
2553                                        NewThreadButton::new(
2554                                            "new-thread-btn",
2555                                            "New Thread",
2556                                            IconName::Thread,
2557                                        )
2558                                        .keybinding(KeyBinding::for_action_in(
2559                                            &NewThread::default(),
2560                                            &self.focus_handle(cx),
2561                                            window,
2562                                            cx,
2563                                        ))
2564                                        .on_click(
2565                                            |window, cx| {
2566                                                window.dispatch_action(
2567                                                    NewThread::default().boxed_clone(),
2568                                                    cx,
2569                                                )
2570                                            },
2571                                        ),
2572                                    )
2573                                    .child(
2574                                        NewThreadButton::new(
2575                                            "new-text-thread-btn",
2576                                            "New Text Thread",
2577                                            IconName::TextThread,
2578                                        )
2579                                        .keybinding(KeyBinding::for_action_in(
2580                                            &NewTextThread,
2581                                            &self.focus_handle(cx),
2582                                            window,
2583                                            cx,
2584                                        ))
2585                                        .on_click(
2586                                            |window, cx| {
2587                                                window.dispatch_action(Box::new(NewTextThread), cx)
2588                                            },
2589                                        ),
2590                                    ),
2591                            )
2592                            .when(cx.has_flag::<feature_flags::AcpFeatureFlag>(), |this| {
2593                                this.child(
2594                                    h_flex()
2595                                        .w_full()
2596                                        .gap_2()
2597                                        .child(
2598                                            NewThreadButton::new(
2599                                                "new-gemini-thread-btn",
2600                                                "New Gemini Thread",
2601                                                IconName::AiGemini,
2602                                            )
2603                                            // .keybinding(KeyBinding::for_action_in(
2604                                            //     &OpenHistory,
2605                                            //     &self.focus_handle(cx),
2606                                            //     window,
2607                                            //     cx,
2608                                            // ))
2609                                            .on_click(
2610                                                |window, cx| {
2611                                                    window.dispatch_action(
2612                                                        Box::new(NewExternalAgentThread {
2613                                                            agent: Some(
2614                                                                crate::ExternalAgent::Gemini,
2615                                                            ),
2616                                                        }),
2617                                                        cx,
2618                                                    )
2619                                                },
2620                                            ),
2621                                        )
2622                                        .child(
2623                                            NewThreadButton::new(
2624                                                "new-claude-thread-btn",
2625                                                "New Claude Code Thread",
2626                                                IconName::AiClaude,
2627                                            )
2628                                            // .keybinding(KeyBinding::for_action_in(
2629                                            //     &OpenHistory,
2630                                            //     &self.focus_handle(cx),
2631                                            //     window,
2632                                            //     cx,
2633                                            // ))
2634                                            .on_click(
2635                                                |window, cx| {
2636                                                    window.dispatch_action(
2637                                                        Box::new(NewExternalAgentThread {
2638                                                            agent: Some(
2639                                                                crate::ExternalAgent::ClaudeCode,
2640                                                            ),
2641                                                        }),
2642                                                        cx,
2643                                                    )
2644                                                },
2645                                            ),
2646                                        ),
2647                                )
2648                            }),
2649                    )
2650                    .when_some(configuration_error.as_ref(), |this, err| {
2651                        this.child(self.render_configuration_error(err, &focus_handle, window, cx))
2652                    })
2653            })
2654    }
2655
2656    fn render_configuration_error(
2657        &self,
2658        configuration_error: &ConfigurationError,
2659        focus_handle: &FocusHandle,
2660        window: &mut Window,
2661        cx: &mut App,
2662    ) -> impl IntoElement {
2663        match configuration_error {
2664            ConfigurationError::ModelNotFound
2665            | ConfigurationError::ProviderNotAuthenticated(_)
2666            | ConfigurationError::NoProvider => Banner::new()
2667                .severity(ui::Severity::Warning)
2668                .child(Label::new(configuration_error.to_string()))
2669                .action_slot(
2670                    Button::new("settings", "Configure Provider")
2671                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2672                        .label_size(LabelSize::Small)
2673                        .key_binding(
2674                            KeyBinding::for_action_in(&OpenSettings, &focus_handle, window, cx)
2675                                .map(|kb| kb.size(rems_from_px(12.))),
2676                        )
2677                        .on_click(|_event, window, cx| {
2678                            window.dispatch_action(OpenSettings.boxed_clone(), cx)
2679                        }),
2680                ),
2681            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
2682                Banner::new().severity(ui::Severity::Warning).child(
2683                    h_flex().w_full().children(
2684                        provider.render_accept_terms(
2685                            LanguageModelProviderTosView::ThreadEmptyState,
2686                            cx,
2687                        ),
2688                    ),
2689                )
2690            }
2691        }
2692    }
2693
2694    fn render_tool_use_limit_reached(
2695        &self,
2696        window: &mut Window,
2697        cx: &mut Context<Self>,
2698    ) -> Option<AnyElement> {
2699        let active_thread = match &self.active_view {
2700            ActiveView::Thread { thread, .. } => thread,
2701            ActiveView::ExternalAgentThread { .. } => {
2702                return None;
2703            }
2704            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2705                return None;
2706            }
2707        };
2708
2709        let thread = active_thread.read(cx).thread().read(cx);
2710
2711        let tool_use_limit_reached = thread.tool_use_limit_reached();
2712        if !tool_use_limit_reached {
2713            return None;
2714        }
2715
2716        let model = thread.configured_model()?.model;
2717
2718        let focus_handle = self.focus_handle(cx);
2719
2720        let banner = Banner::new()
2721            .severity(ui::Severity::Info)
2722            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2723            .action_slot(
2724                h_flex()
2725                    .gap_1()
2726                    .child(
2727                        Button::new("continue-conversation", "Continue")
2728                            .layer(ElevationIndex::ModalSurface)
2729                            .label_size(LabelSize::Small)
2730                            .key_binding(
2731                                KeyBinding::for_action_in(
2732                                    &ContinueThread,
2733                                    &focus_handle,
2734                                    window,
2735                                    cx,
2736                                )
2737                                .map(|kb| kb.size(rems_from_px(10.))),
2738                            )
2739                            .on_click(cx.listener(|this, _, window, cx| {
2740                                this.continue_conversation(window, cx);
2741                            })),
2742                    )
2743                    .when(model.supports_burn_mode(), |this| {
2744                        this.child(
2745                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2746                                .style(ButtonStyle::Filled)
2747                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2748                                .layer(ElevationIndex::ModalSurface)
2749                                .label_size(LabelSize::Small)
2750                                .key_binding(
2751                                    KeyBinding::for_action_in(
2752                                        &ContinueWithBurnMode,
2753                                        &focus_handle,
2754                                        window,
2755                                        cx,
2756                                    )
2757                                    .map(|kb| kb.size(rems_from_px(10.))),
2758                                )
2759                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
2760                                .on_click({
2761                                    let active_thread = active_thread.clone();
2762                                    cx.listener(move |this, _, window, cx| {
2763                                        active_thread.update(cx, |active_thread, cx| {
2764                                            active_thread.thread().update(cx, |thread, _cx| {
2765                                                thread.set_completion_mode(CompletionMode::Burn);
2766                                            });
2767                                        });
2768                                        this.continue_conversation(window, cx);
2769                                    })
2770                                }),
2771                        )
2772                    }),
2773            );
2774
2775        Some(div().px_2().pb_2().child(banner).into_any_element())
2776    }
2777
2778    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
2779        let message = message.into();
2780
2781        IconButton::new("copy", IconName::Copy)
2782            .icon_size(IconSize::Small)
2783            .icon_color(Color::Muted)
2784            .tooltip(Tooltip::text("Copy Error Message"))
2785            .on_click(move |_, _, cx| {
2786                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
2787            })
2788    }
2789
2790    fn dismiss_error_button(
2791        &self,
2792        thread: &Entity<ActiveThread>,
2793        cx: &mut Context<Self>,
2794    ) -> impl IntoElement {
2795        IconButton::new("dismiss", IconName::Close)
2796            .icon_size(IconSize::Small)
2797            .icon_color(Color::Muted)
2798            .tooltip(Tooltip::text("Dismiss Error"))
2799            .on_click(cx.listener({
2800                let thread = thread.clone();
2801                move |_, _, _, cx| {
2802                    thread.update(cx, |this, _cx| {
2803                        this.clear_last_error();
2804                    });
2805
2806                    cx.notify();
2807                }
2808            }))
2809    }
2810
2811    fn upgrade_button(
2812        &self,
2813        thread: &Entity<ActiveThread>,
2814        cx: &mut Context<Self>,
2815    ) -> impl IntoElement {
2816        Button::new("upgrade", "Upgrade")
2817            .label_size(LabelSize::Small)
2818            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2819            .on_click(cx.listener({
2820                let thread = thread.clone();
2821                move |_, _, _, cx| {
2822                    thread.update(cx, |this, _cx| {
2823                        this.clear_last_error();
2824                    });
2825
2826                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
2827                    cx.notify();
2828                }
2829            }))
2830    }
2831
2832    fn error_callout_bg(&self, cx: &Context<Self>) -> Hsla {
2833        cx.theme().status().error.opacity(0.08)
2834    }
2835
2836    fn render_payment_required_error(
2837        &self,
2838        thread: &Entity<ActiveThread>,
2839        cx: &mut Context<Self>,
2840    ) -> AnyElement {
2841        const ERROR_MESSAGE: &str =
2842            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
2843
2844        let icon = Icon::new(IconName::XCircle)
2845            .size(IconSize::Small)
2846            .color(Color::Error);
2847
2848        div()
2849            .border_t_1()
2850            .border_color(cx.theme().colors().border)
2851            .child(
2852                Callout::new()
2853                    .icon(icon)
2854                    .title("Free Usage Exceeded")
2855                    .description(ERROR_MESSAGE)
2856                    .tertiary_action(self.upgrade_button(thread, cx))
2857                    .secondary_action(self.create_copy_button(ERROR_MESSAGE))
2858                    .primary_action(self.dismiss_error_button(thread, cx))
2859                    .bg_color(self.error_callout_bg(cx)),
2860            )
2861            .into_any_element()
2862    }
2863
2864    fn render_model_request_limit_reached_error(
2865        &self,
2866        plan: Plan,
2867        thread: &Entity<ActiveThread>,
2868        cx: &mut Context<Self>,
2869    ) -> AnyElement {
2870        let error_message = match plan {
2871            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
2872            Plan::ZedProTrial | Plan::ZedFree => "Upgrade to Zed Pro for more prompts.",
2873        };
2874
2875        let icon = Icon::new(IconName::XCircle)
2876            .size(IconSize::Small)
2877            .color(Color::Error);
2878
2879        div()
2880            .border_t_1()
2881            .border_color(cx.theme().colors().border)
2882            .child(
2883                Callout::new()
2884                    .icon(icon)
2885                    .title("Model Prompt Limit Reached")
2886                    .description(error_message)
2887                    .tertiary_action(self.upgrade_button(thread, cx))
2888                    .secondary_action(self.create_copy_button(error_message))
2889                    .primary_action(self.dismiss_error_button(thread, cx))
2890                    .bg_color(self.error_callout_bg(cx)),
2891            )
2892            .into_any_element()
2893    }
2894
2895    fn render_error_message(
2896        &self,
2897        header: SharedString,
2898        message: SharedString,
2899        thread: &Entity<ActiveThread>,
2900        cx: &mut Context<Self>,
2901    ) -> AnyElement {
2902        let message_with_header = format!("{}\n{}", header, message);
2903
2904        let icon = Icon::new(IconName::XCircle)
2905            .size(IconSize::Small)
2906            .color(Color::Error);
2907
2908        let retry_button = Button::new("retry", "Retry")
2909            .icon(IconName::RotateCw)
2910            .icon_position(IconPosition::Start)
2911            .icon_size(IconSize::Small)
2912            .label_size(LabelSize::Small)
2913            .on_click({
2914                let thread = thread.clone();
2915                move |_, window, cx| {
2916                    thread.update(cx, |thread, cx| {
2917                        thread.clear_last_error();
2918                        thread.thread().update(cx, |thread, cx| {
2919                            thread.retry_last_completion(Some(window.window_handle()), cx);
2920                        });
2921                    });
2922                }
2923            });
2924
2925        div()
2926            .border_t_1()
2927            .border_color(cx.theme().colors().border)
2928            .child(
2929                Callout::new()
2930                    .icon(icon)
2931                    .title(header)
2932                    .description(message.clone())
2933                    .primary_action(retry_button)
2934                    .secondary_action(self.dismiss_error_button(thread, cx))
2935                    .tertiary_action(self.create_copy_button(message_with_header))
2936                    .bg_color(self.error_callout_bg(cx)),
2937            )
2938            .into_any_element()
2939    }
2940
2941    fn render_retryable_error(
2942        &self,
2943        message: SharedString,
2944        can_enable_burn_mode: bool,
2945        thread: &Entity<ActiveThread>,
2946        cx: &mut Context<Self>,
2947    ) -> AnyElement {
2948        let icon = Icon::new(IconName::XCircle)
2949            .size(IconSize::Small)
2950            .color(Color::Error);
2951
2952        let retry_button = Button::new("retry", "Retry")
2953            .icon(IconName::RotateCw)
2954            .icon_position(IconPosition::Start)
2955            .icon_size(IconSize::Small)
2956            .label_size(LabelSize::Small)
2957            .on_click({
2958                let thread = thread.clone();
2959                move |_, window, cx| {
2960                    thread.update(cx, |thread, cx| {
2961                        thread.clear_last_error();
2962                        thread.thread().update(cx, |thread, cx| {
2963                            thread.retry_last_completion(Some(window.window_handle()), cx);
2964                        });
2965                    });
2966                }
2967            });
2968
2969        let mut callout = Callout::new()
2970            .icon(icon)
2971            .title("Error")
2972            .description(message.clone())
2973            .bg_color(self.error_callout_bg(cx))
2974            .primary_action(retry_button);
2975
2976        if can_enable_burn_mode {
2977            let burn_mode_button = Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
2978                .icon(IconName::ZedBurnMode)
2979                .icon_position(IconPosition::Start)
2980                .icon_size(IconSize::Small)
2981                .label_size(LabelSize::Small)
2982                .on_click({
2983                    let thread = thread.clone();
2984                    move |_, window, cx| {
2985                        thread.update(cx, |thread, cx| {
2986                            thread.clear_last_error();
2987                            thread.thread().update(cx, |thread, cx| {
2988                                thread.enable_burn_mode_and_retry(Some(window.window_handle()), cx);
2989                            });
2990                        });
2991                    }
2992                });
2993            callout = callout.secondary_action(burn_mode_button);
2994        }
2995
2996        div()
2997            .border_t_1()
2998            .border_color(cx.theme().colors().border)
2999            .child(callout)
3000            .into_any_element()
3001    }
3002
3003    fn render_prompt_editor(
3004        &self,
3005        context_editor: &Entity<TextThreadEditor>,
3006        buffer_search_bar: &Entity<BufferSearchBar>,
3007        window: &mut Window,
3008        cx: &mut Context<Self>,
3009    ) -> Div {
3010        let mut registrar = buffer_search::DivRegistrar::new(
3011            |this, _, _cx| match &this.active_view {
3012                ActiveView::TextThread {
3013                    buffer_search_bar, ..
3014                } => Some(buffer_search_bar.clone()),
3015                _ => None,
3016            },
3017            cx,
3018        );
3019        BufferSearchBar::register(&mut registrar);
3020        registrar
3021            .into_div()
3022            .size_full()
3023            .relative()
3024            .map(|parent| {
3025                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3026                    if buffer_search_bar.is_dismissed() {
3027                        return parent;
3028                    }
3029                    parent.child(
3030                        div()
3031                            .p(DynamicSpacing::Base08.rems(cx))
3032                            .border_b_1()
3033                            .border_color(cx.theme().colors().border_variant)
3034                            .bg(cx.theme().colors().editor_background)
3035                            .child(buffer_search_bar.render(window, cx)),
3036                    )
3037                })
3038            })
3039            .child(context_editor.clone())
3040            .child(self.render_drag_target(cx))
3041    }
3042
3043    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3044        let is_local = self.project.read(cx).is_local();
3045        div()
3046            .invisible()
3047            .absolute()
3048            .top_0()
3049            .right_0()
3050            .bottom_0()
3051            .left_0()
3052            .bg(cx.theme().colors().drop_target_background)
3053            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3054            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3055            .when(is_local, |this| {
3056                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3057            })
3058            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3059                let item = tab.pane.read(cx).item_for_index(tab.ix);
3060                let project_paths = item
3061                    .and_then(|item| item.project_path(cx))
3062                    .into_iter()
3063                    .collect::<Vec<_>>();
3064                this.handle_drop(project_paths, vec![], window, cx);
3065            }))
3066            .on_drop(
3067                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3068                    let project_paths = selection
3069                        .items()
3070                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3071                        .collect::<Vec<_>>();
3072                    this.handle_drop(project_paths, vec![], window, cx);
3073                }),
3074            )
3075            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3076                let tasks = paths
3077                    .paths()
3078                    .into_iter()
3079                    .map(|path| {
3080                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
3081                    })
3082                    .collect::<Vec<_>>();
3083                cx.spawn_in(window, async move |this, cx| {
3084                    let mut paths = vec![];
3085                    let mut added_worktrees = vec![];
3086                    let opened_paths = futures::future::join_all(tasks).await;
3087                    for entry in opened_paths {
3088                        if let Some((worktree, project_path)) = entry.log_err() {
3089                            added_worktrees.push(worktree);
3090                            paths.push(project_path);
3091                        }
3092                    }
3093                    this.update_in(cx, |this, window, cx| {
3094                        this.handle_drop(paths, added_worktrees, window, cx);
3095                    })
3096                    .ok();
3097                })
3098                .detach();
3099            }))
3100    }
3101
3102    fn handle_drop(
3103        &mut self,
3104        paths: Vec<ProjectPath>,
3105        added_worktrees: Vec<Entity<Worktree>>,
3106        window: &mut Window,
3107        cx: &mut Context<Self>,
3108    ) {
3109        match &self.active_view {
3110            ActiveView::Thread { thread, .. } => {
3111                let context_store = thread.read(cx).context_store().clone();
3112                context_store.update(cx, move |context_store, cx| {
3113                    let mut tasks = Vec::new();
3114                    for project_path in &paths {
3115                        tasks.push(context_store.add_file_from_path(
3116                            project_path.clone(),
3117                            false,
3118                            cx,
3119                        ));
3120                    }
3121                    cx.background_spawn(async move {
3122                        futures::future::join_all(tasks).await;
3123                        // Need to hold onto the worktrees until they have already been used when
3124                        // opening the buffers.
3125                        drop(added_worktrees);
3126                    })
3127                    .detach();
3128                });
3129            }
3130            ActiveView::ExternalAgentThread { .. } => {
3131                unimplemented!()
3132            }
3133            ActiveView::TextThread { context_editor, .. } => {
3134                context_editor.update(cx, |context_editor, cx| {
3135                    TextThreadEditor::insert_dragged_files(
3136                        context_editor,
3137                        paths,
3138                        added_worktrees,
3139                        window,
3140                        cx,
3141                    );
3142                });
3143            }
3144            ActiveView::History | ActiveView::Configuration => {}
3145        }
3146    }
3147
3148    fn key_context(&self) -> KeyContext {
3149        let mut key_context = KeyContext::new_with_defaults();
3150        key_context.add("AgentPanel");
3151        match &self.active_view {
3152            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3153            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3154            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3155        }
3156        key_context
3157    }
3158}
3159
3160impl Render for AgentPanel {
3161    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3162        // WARNING: Changes to this element hierarchy can have
3163        // non-obvious implications to the layout of children.
3164        //
3165        // If you need to change it, please confirm:
3166        // - The message editor expands (cmd-option-esc) correctly
3167        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3168        // - Font size works as expected and can be changed with cmd-+/cmd-
3169        // - Scrolling in all views works as expected
3170        // - Files can be dropped into the panel
3171        let content = v_flex()
3172            .key_context(self.key_context())
3173            .justify_between()
3174            .size_full()
3175            .on_action(cx.listener(Self::cancel))
3176            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3177                this.new_thread(action, window, cx);
3178            }))
3179            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3180                this.open_history(window, cx);
3181            }))
3182            .on_action(cx.listener(|this, _: &OpenSettings, window, cx| {
3183                this.open_configuration(window, cx);
3184            }))
3185            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3186            .on_action(cx.listener(Self::deploy_rules_library))
3187            .on_action(cx.listener(Self::open_agent_diff))
3188            .on_action(cx.listener(Self::go_back))
3189            .on_action(cx.listener(Self::toggle_navigation_menu))
3190            .on_action(cx.listener(Self::toggle_options_menu))
3191            .on_action(cx.listener(Self::increase_font_size))
3192            .on_action(cx.listener(Self::decrease_font_size))
3193            .on_action(cx.listener(Self::reset_font_size))
3194            .on_action(cx.listener(Self::toggle_zoom))
3195            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3196                this.continue_conversation(window, cx);
3197            }))
3198            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3199                match &this.active_view {
3200                    ActiveView::Thread { thread, .. } => {
3201                        thread.update(cx, |active_thread, cx| {
3202                            active_thread.thread().update(cx, |thread, _cx| {
3203                                thread.set_completion_mode(CompletionMode::Burn);
3204                            });
3205                        });
3206                        this.continue_conversation(window, cx);
3207                    }
3208                    ActiveView::ExternalAgentThread { .. } => {}
3209                    ActiveView::TextThread { .. }
3210                    | ActiveView::History
3211                    | ActiveView::Configuration => {}
3212                }
3213            }))
3214            .on_action(cx.listener(Self::toggle_burn_mode))
3215            .child(self.render_toolbar(window, cx))
3216            .children(self.render_onboarding(window, cx))
3217            .children(self.render_trial_end_upsell(window, cx))
3218            .map(|parent| match &self.active_view {
3219                ActiveView::Thread {
3220                    thread,
3221                    message_editor,
3222                    ..
3223                } => parent
3224                    .relative()
3225                    .child(
3226                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3227                            self.render_thread_empty_state(window, cx)
3228                                .into_any_element()
3229                        } else {
3230                            thread.clone().into_any_element()
3231                        },
3232                    )
3233                    .children(self.render_tool_use_limit_reached(window, cx))
3234                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3235                        this.child(
3236                            div()
3237                                .child(match last_error {
3238                                    ThreadError::PaymentRequired => {
3239                                        self.render_payment_required_error(thread, cx)
3240                                    }
3241                                    ThreadError::ModelRequestLimitReached { plan } => self
3242                                        .render_model_request_limit_reached_error(plan, thread, cx),
3243                                    ThreadError::Message { header, message } => {
3244                                        self.render_error_message(header, message, thread, cx)
3245                                    }
3246                                    ThreadError::RetryableError {
3247                                        message,
3248                                        can_enable_burn_mode,
3249                                    } => self.render_retryable_error(
3250                                        message,
3251                                        can_enable_burn_mode,
3252                                        thread,
3253                                        cx,
3254                                    ),
3255                                })
3256                                .into_any(),
3257                        )
3258                    })
3259                    .child(h_flex().relative().child(message_editor.clone()).when(
3260                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3261                        |this| {
3262                            this.child(
3263                                div()
3264                                    .size_full()
3265                                    .absolute()
3266                                    .inset_0()
3267                                    .bg(cx.theme().colors().panel_background)
3268                                    .opacity(0.8)
3269                                    .block_mouse_except_scroll(),
3270                            )
3271                        },
3272                    ))
3273                    .child(self.render_drag_target(cx)),
3274                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3275                    .relative()
3276                    .child(thread_view.clone())
3277                    .child(self.render_drag_target(cx)),
3278                ActiveView::History => parent.child(self.history.clone()),
3279                ActiveView::TextThread {
3280                    context_editor,
3281                    buffer_search_bar,
3282                    ..
3283                } => {
3284                    let model_registry = LanguageModelRegistry::read_global(cx);
3285                    let configuration_error =
3286                        model_registry.configuration_error(model_registry.default_model(), cx);
3287                    parent
3288                        .map(|this| {
3289                            if !self.should_render_onboarding(cx)
3290                                && let Some(err) = configuration_error.as_ref()
3291                            {
3292                                this.child(
3293                                    div().bg(cx.theme().colors().editor_background).p_2().child(
3294                                        self.render_configuration_error(
3295                                            err,
3296                                            &self.focus_handle(cx),
3297                                            window,
3298                                            cx,
3299                                        ),
3300                                    ),
3301                                )
3302                            } else {
3303                                this
3304                            }
3305                        })
3306                        .child(self.render_prompt_editor(
3307                            context_editor,
3308                            buffer_search_bar,
3309                            window,
3310                            cx,
3311                        ))
3312                }
3313                ActiveView::Configuration => parent.children(self.configuration.clone()),
3314            });
3315
3316        match self.active_view.which_font_size_used() {
3317            WhichFontSize::AgentFont => {
3318                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3319                    .size_full()
3320                    .child(content)
3321                    .into_any()
3322            }
3323            _ => content.into_any(),
3324        }
3325    }
3326}
3327
3328struct PromptLibraryInlineAssist {
3329    workspace: WeakEntity<Workspace>,
3330}
3331
3332impl PromptLibraryInlineAssist {
3333    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3334        Self { workspace }
3335    }
3336}
3337
3338impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3339    fn assist(
3340        &self,
3341        prompt_editor: &Entity<Editor>,
3342        initial_prompt: Option<String>,
3343        window: &mut Window,
3344        cx: &mut Context<RulesLibrary>,
3345    ) {
3346        InlineAssistant::update_global(cx, |assistant, cx| {
3347            let Some(project) = self
3348                .workspace
3349                .upgrade()
3350                .map(|workspace| workspace.read(cx).project().downgrade())
3351            else {
3352                return;
3353            };
3354            let prompt_store = None;
3355            let thread_store = None;
3356            let text_thread_store = None;
3357            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3358            assistant.assist(
3359                &prompt_editor,
3360                self.workspace.clone(),
3361                context_store,
3362                project,
3363                prompt_store,
3364                thread_store,
3365                text_thread_store,
3366                initial_prompt,
3367                window,
3368                cx,
3369            )
3370        })
3371    }
3372
3373    fn focus_agent_panel(
3374        &self,
3375        workspace: &mut Workspace,
3376        window: &mut Window,
3377        cx: &mut Context<Workspace>,
3378    ) -> bool {
3379        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3380    }
3381}
3382
3383pub struct ConcreteAssistantPanelDelegate;
3384
3385impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3386    fn active_context_editor(
3387        &self,
3388        workspace: &mut Workspace,
3389        _window: &mut Window,
3390        cx: &mut Context<Workspace>,
3391    ) -> Option<Entity<TextThreadEditor>> {
3392        let panel = workspace.panel::<AgentPanel>(cx)?;
3393        panel.read(cx).active_context_editor()
3394    }
3395
3396    fn open_saved_context(
3397        &self,
3398        workspace: &mut Workspace,
3399        path: Arc<Path>,
3400        window: &mut Window,
3401        cx: &mut Context<Workspace>,
3402    ) -> Task<Result<()>> {
3403        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3404            return Task::ready(Err(anyhow!("Agent panel not found")));
3405        };
3406
3407        panel.update(cx, |panel, cx| {
3408            panel.open_saved_prompt_editor(path, window, cx)
3409        })
3410    }
3411
3412    fn open_remote_context(
3413        &self,
3414        _workspace: &mut Workspace,
3415        _context_id: assistant_context::ContextId,
3416        _window: &mut Window,
3417        _cx: &mut Context<Workspace>,
3418    ) -> Task<Result<Entity<TextThreadEditor>>> {
3419        Task::ready(Err(anyhow!("opening remote context not implemented")))
3420    }
3421
3422    fn quote_selection(
3423        &self,
3424        workspace: &mut Workspace,
3425        selection_ranges: Vec<Range<Anchor>>,
3426        buffer: Entity<MultiBuffer>,
3427        window: &mut Window,
3428        cx: &mut Context<Workspace>,
3429    ) {
3430        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3431            return;
3432        };
3433
3434        if !panel.focus_handle(cx).contains_focused(window, cx) {
3435            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3436        }
3437
3438        panel.update(cx, |_, cx| {
3439            // Wait to create a new context until the workspace is no longer
3440            // being updated.
3441            cx.defer_in(window, move |panel, window, cx| {
3442                if let Some(message_editor) = panel.active_message_editor() {
3443                    message_editor.update(cx, |message_editor, cx| {
3444                        message_editor.context_store().update(cx, |store, cx| {
3445                            let buffer = buffer.read(cx);
3446                            let selection_ranges = selection_ranges
3447                                .into_iter()
3448                                .flat_map(|range| {
3449                                    let (start_buffer, start) =
3450                                        buffer.text_anchor_for_position(range.start, cx)?;
3451                                    let (end_buffer, end) =
3452                                        buffer.text_anchor_for_position(range.end, cx)?;
3453                                    if start_buffer != end_buffer {
3454                                        return None;
3455                                    }
3456                                    Some((start_buffer, start..end))
3457                                })
3458                                .collect::<Vec<_>>();
3459
3460                            for (buffer, range) in selection_ranges {
3461                                store.add_selection(buffer, range, cx);
3462                            }
3463                        })
3464                    })
3465                } else if let Some(context_editor) = panel.active_context_editor() {
3466                    let snapshot = buffer.read(cx).snapshot(cx);
3467                    let selection_ranges = selection_ranges
3468                        .into_iter()
3469                        .map(|range| range.to_point(&snapshot))
3470                        .collect::<Vec<_>>();
3471
3472                    context_editor.update(cx, |context_editor, cx| {
3473                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3474                    });
3475                }
3476            });
3477        });
3478    }
3479}
3480
3481struct OnboardingUpsell;
3482
3483impl Dismissable for OnboardingUpsell {
3484    const KEY: &'static str = "dismissed-trial-upsell";
3485}
3486
3487struct TrialEndUpsell;
3488
3489impl Dismissable for TrialEndUpsell {
3490    const KEY: &'static str = "dismissed-trial-end-upsell";
3491}