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::{
  16    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  17    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  18    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  19    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu,
  20    ToggleNewThreadMenu, 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    selected_agent: Option<AgentType>,
  90}
  91
  92pub fn init(cx: &mut App) {
  93    cx.observe_new(
  94        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  95            workspace
  96                .register_action(|workspace, action: &NewThread, window, cx| {
  97                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  98                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  99                        workspace.focus_panel::<AgentPanel>(window, cx);
 100                    }
 101                })
 102                .register_action(|workspace, _: &OpenHistory, window, cx| {
 103                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 104                        workspace.focus_panel::<AgentPanel>(window, cx);
 105                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
 106                    }
 107                })
 108                .register_action(|workspace, _: &OpenSettings, window, cx| {
 109                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 110                        workspace.focus_panel::<AgentPanel>(window, cx);
 111                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 112                    }
 113                })
 114                .register_action(|workspace, _: &NewTextThread, window, cx| {
 115                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 116                        workspace.focus_panel::<AgentPanel>(window, cx);
 117                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 118                    }
 119                })
 120                .register_action(|workspace, action: &NewExternalAgentThread, window, cx| {
 121                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 122                        workspace.focus_panel::<AgentPanel>(window, cx);
 123                        panel.update(cx, |panel, cx| {
 124                            panel.new_external_thread(action.agent, window, cx)
 125                        });
 126                    }
 127                })
 128                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 129                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 130                        workspace.focus_panel::<AgentPanel>(window, cx);
 131                        panel.update(cx, |panel, cx| {
 132                            panel.deploy_rules_library(action, window, cx)
 133                        });
 134                    }
 135                })
 136                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 137                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 138                        workspace.focus_panel::<AgentPanel>(window, cx);
 139                        match &panel.read(cx).active_view {
 140                            ActiveView::Thread { thread, .. } => {
 141                                let thread = thread.read(cx).thread().clone();
 142                                AgentDiffPane::deploy_in_workspace(thread, workspace, window, cx);
 143                            }
 144                            ActiveView::ExternalAgentThread { .. }
 145                            | ActiveView::TextThread { .. }
 146                            | ActiveView::History
 147                            | ActiveView::Configuration => {}
 148                        }
 149                    }
 150                })
 151                .register_action(|workspace, _: &Follow, window, cx| {
 152                    workspace.follow(CollaboratorId::Agent, window, cx);
 153                })
 154                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 155                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 156                        return;
 157                    };
 158                    workspace.focus_panel::<AgentPanel>(window, cx);
 159                    panel.update(cx, |panel, cx| {
 160                        if let Some(message_editor) = panel.active_message_editor() {
 161                            message_editor.update(cx, |editor, cx| {
 162                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 163                            });
 164                        }
 165                    });
 166                })
 167                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 168                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 169                        workspace.focus_panel::<AgentPanel>(window, cx);
 170                        panel.update(cx, |panel, cx| {
 171                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 172                        });
 173                    }
 174                })
 175                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 176                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 177                        workspace.focus_panel::<AgentPanel>(window, cx);
 178                        panel.update(cx, |panel, cx| {
 179                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 180                        });
 181                    }
 182                })
 183                .register_action(|workspace, _: &ToggleNewThreadMenu, window, cx| {
 184                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 185                        workspace.focus_panel::<AgentPanel>(window, cx);
 186                        panel.update(cx, |panel, cx| {
 187                            panel.toggle_new_thread_menu(&ToggleNewThreadMenu, window, cx);
 188                        });
 189                    }
 190                })
 191                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 192                    AgentOnboardingModal::toggle(workspace, window, cx)
 193                })
 194                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 195                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 196                    window.refresh();
 197                })
 198                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 199                    OnboardingUpsell::set_dismissed(false, cx);
 200                })
 201                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 202                    TrialEndUpsell::set_dismissed(false, cx);
 203                });
 204        },
 205    )
 206    .detach();
 207}
 208
 209enum ActiveView {
 210    Thread {
 211        thread: Entity<ActiveThread>,
 212        change_title_editor: Entity<Editor>,
 213        message_editor: Entity<MessageEditor>,
 214        _subscriptions: Vec<gpui::Subscription>,
 215    },
 216    ExternalAgentThread {
 217        thread_view: Entity<AcpThreadView>,
 218    },
 219    TextThread {
 220        context_editor: Entity<TextThreadEditor>,
 221        title_editor: Entity<Editor>,
 222        buffer_search_bar: Entity<BufferSearchBar>,
 223        _subscriptions: Vec<gpui::Subscription>,
 224    },
 225    History,
 226    Configuration,
 227}
 228
 229enum WhichFontSize {
 230    AgentFont,
 231    BufferFont,
 232    None,
 233}
 234
 235#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 236pub enum AgentType {
 237    #[default]
 238    Zed,
 239    TextThread,
 240    Gemini,
 241    ClaudeCode,
 242    NativeAgent,
 243}
 244
 245impl AgentType {
 246    fn label(self) -> impl Into<SharedString> {
 247        match self {
 248            Self::Zed | Self::TextThread => "Zed",
 249            Self::NativeAgent => "Agent 2",
 250            Self::Gemini => "Gemini",
 251            Self::ClaudeCode => "Claude Code",
 252        }
 253    }
 254
 255    fn icon(self) -> IconName {
 256        match self {
 257            Self::Zed | Self::TextThread => IconName::AiZed,
 258            Self::NativeAgent => IconName::ZedAssistant,
 259            Self::Gemini => IconName::AiGemini,
 260            Self::ClaudeCode => IconName::AiClaude,
 261        }
 262    }
 263}
 264
 265impl ActiveView {
 266    pub fn which_font_size_used(&self) -> WhichFontSize {
 267        match self {
 268            ActiveView::Thread { .. }
 269            | ActiveView::ExternalAgentThread { .. }
 270            | ActiveView::History => WhichFontSize::AgentFont,
 271            ActiveView::TextThread { .. } => WhichFontSize::BufferFont,
 272            ActiveView::Configuration => WhichFontSize::None,
 273        }
 274    }
 275
 276    pub fn thread(
 277        active_thread: Entity<ActiveThread>,
 278        message_editor: Entity<MessageEditor>,
 279        window: &mut Window,
 280        cx: &mut Context<AgentPanel>,
 281    ) -> Self {
 282        let summary = active_thread.read(cx).summary(cx).or_default();
 283
 284        let editor = cx.new(|cx| {
 285            let mut editor = Editor::single_line(window, cx);
 286            editor.set_text(summary.clone(), window, cx);
 287            editor
 288        });
 289
 290        let subscriptions = vec![
 291            cx.subscribe(&message_editor, |this, _, event, cx| match event {
 292                MessageEditorEvent::Changed | MessageEditorEvent::EstimatedTokenCount => {
 293                    cx.notify();
 294                }
 295                MessageEditorEvent::ScrollThreadToBottom => match &this.active_view {
 296                    ActiveView::Thread { thread, .. } => {
 297                        thread.update(cx, |thread, cx| {
 298                            thread.scroll_to_bottom(cx);
 299                        });
 300                    }
 301                    ActiveView::ExternalAgentThread { .. } => {}
 302                    ActiveView::TextThread { .. }
 303                    | ActiveView::History
 304                    | ActiveView::Configuration => {}
 305                },
 306            }),
 307            window.subscribe(&editor, cx, {
 308                {
 309                    let thread = active_thread.clone();
 310                    move |editor, event, window, cx| match event {
 311                        EditorEvent::BufferEdited => {
 312                            let new_summary = editor.read(cx).text(cx);
 313
 314                            thread.update(cx, |thread, cx| {
 315                                thread.thread().update(cx, |thread, cx| {
 316                                    thread.set_summary(new_summary, cx);
 317                                });
 318                            })
 319                        }
 320                        EditorEvent::Blurred => {
 321                            if editor.read(cx).text(cx).is_empty() {
 322                                let summary = thread.read(cx).summary(cx).or_default();
 323
 324                                editor.update(cx, |editor, cx| {
 325                                    editor.set_text(summary, window, cx);
 326                                });
 327                            }
 328                        }
 329                        _ => {}
 330                    }
 331                }
 332            }),
 333            cx.subscribe(&active_thread, |_, _, event, cx| match &event {
 334                ActiveThreadEvent::EditingMessageTokenCountChanged => {
 335                    cx.notify();
 336                }
 337            }),
 338            cx.subscribe_in(&active_thread.read(cx).thread().clone(), window, {
 339                let editor = editor.clone();
 340                move |_, thread, event, window, cx| match event {
 341                    ThreadEvent::SummaryGenerated => {
 342                        let summary = thread.read(cx).summary().or_default();
 343
 344                        editor.update(cx, |editor, cx| {
 345                            editor.set_text(summary, window, cx);
 346                        })
 347                    }
 348                    ThreadEvent::MessageAdded(_) => {
 349                        cx.notify();
 350                    }
 351                    _ => {}
 352                }
 353            }),
 354        ];
 355
 356        Self::Thread {
 357            change_title_editor: editor,
 358            thread: active_thread,
 359            message_editor: message_editor,
 360            _subscriptions: subscriptions,
 361        }
 362    }
 363
 364    pub fn prompt_editor(
 365        context_editor: Entity<TextThreadEditor>,
 366        history_store: Entity<HistoryStore>,
 367        language_registry: Arc<LanguageRegistry>,
 368        window: &mut Window,
 369        cx: &mut App,
 370    ) -> Self {
 371        let title = context_editor.read(cx).title(cx).to_string();
 372
 373        let editor = cx.new(|cx| {
 374            let mut editor = Editor::single_line(window, cx);
 375            editor.set_text(title, window, cx);
 376            editor
 377        });
 378
 379        // This is a workaround for `editor.set_text` emitting a `BufferEdited` event, which would
 380        // cause a custom summary to be set. The presence of this custom summary would cause
 381        // summarization to not happen.
 382        let mut suppress_first_edit = true;
 383
 384        let subscriptions = vec![
 385            window.subscribe(&editor, cx, {
 386                {
 387                    let context_editor = context_editor.clone();
 388                    move |editor, event, window, cx| match event {
 389                        EditorEvent::BufferEdited => {
 390                            if suppress_first_edit {
 391                                suppress_first_edit = false;
 392                                return;
 393                            }
 394                            let new_summary = editor.read(cx).text(cx);
 395
 396                            context_editor.update(cx, |context_editor, cx| {
 397                                context_editor
 398                                    .context()
 399                                    .update(cx, |assistant_context, cx| {
 400                                        assistant_context.set_custom_summary(new_summary, cx);
 401                                    })
 402                            })
 403                        }
 404                        EditorEvent::Blurred => {
 405                            if editor.read(cx).text(cx).is_empty() {
 406                                let summary = context_editor
 407                                    .read(cx)
 408                                    .context()
 409                                    .read(cx)
 410                                    .summary()
 411                                    .or_default();
 412
 413                                editor.update(cx, |editor, cx| {
 414                                    editor.set_text(summary, window, cx);
 415                                });
 416                            }
 417                        }
 418                        _ => {}
 419                    }
 420                }
 421            }),
 422            window.subscribe(&context_editor.read(cx).context().clone(), cx, {
 423                let editor = editor.clone();
 424                move |assistant_context, event, window, cx| match event {
 425                    ContextEvent::SummaryGenerated => {
 426                        let summary = assistant_context.read(cx).summary().or_default();
 427
 428                        editor.update(cx, |editor, cx| {
 429                            editor.set_text(summary, window, cx);
 430                        })
 431                    }
 432                    ContextEvent::PathChanged { old_path, new_path } => {
 433                        history_store.update(cx, |history_store, cx| {
 434                            if let Some(old_path) = old_path {
 435                                history_store
 436                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 437                            } else {
 438                                history_store.push_recently_opened_entry(
 439                                    HistoryEntryId::Context(new_path.clone()),
 440                                    cx,
 441                                );
 442                            }
 443                        });
 444                    }
 445                    _ => {}
 446                }
 447            }),
 448        ];
 449
 450        let buffer_search_bar =
 451            cx.new(|cx| BufferSearchBar::new(Some(language_registry), window, cx));
 452        buffer_search_bar.update(cx, |buffer_search_bar, cx| {
 453            buffer_search_bar.set_active_pane_item(Some(&context_editor), window, cx)
 454        });
 455
 456        Self::TextThread {
 457            context_editor,
 458            title_editor: editor,
 459            buffer_search_bar,
 460            _subscriptions: subscriptions,
 461        }
 462    }
 463}
 464
 465pub struct AgentPanel {
 466    workspace: WeakEntity<Workspace>,
 467    user_store: Entity<UserStore>,
 468    project: Entity<Project>,
 469    fs: Arc<dyn Fs>,
 470    language_registry: Arc<LanguageRegistry>,
 471    thread_store: Entity<ThreadStore>,
 472    _default_model_subscription: Subscription,
 473    context_store: Entity<TextThreadStore>,
 474    prompt_store: Option<Entity<PromptStore>>,
 475    inline_assist_context_store: Entity<ContextStore>,
 476    configuration: Option<Entity<AgentConfiguration>>,
 477    configuration_subscription: Option<Subscription>,
 478    local_timezone: UtcOffset,
 479    active_view: ActiveView,
 480    acp_message_history:
 481        Rc<RefCell<crate::acp::MessageHistory<Vec<agent_client_protocol::ContentBlock>>>>,
 482    previous_view: Option<ActiveView>,
 483    history_store: Entity<HistoryStore>,
 484    history: Entity<ThreadHistory>,
 485    hovered_recent_history_item: Option<usize>,
 486    new_thread_menu_handle: PopoverMenuHandle<ContextMenu>,
 487    agent_panel_menu_handle: PopoverMenuHandle<ContextMenu>,
 488    assistant_navigation_menu_handle: PopoverMenuHandle<ContextMenu>,
 489    assistant_navigation_menu: Option<Entity<ContextMenu>>,
 490    width: Option<Pixels>,
 491    height: Option<Pixels>,
 492    zoomed: bool,
 493    pending_serialization: Option<Task<Result<()>>>,
 494    onboarding: Entity<AgentPanelOnboarding>,
 495    selected_agent: AgentType,
 496}
 497
 498impl AgentPanel {
 499    fn serialize(&mut self, cx: &mut Context<Self>) {
 500        let width = self.width;
 501        let selected_agent = self.selected_agent;
 502        self.pending_serialization = Some(cx.background_spawn(async move {
 503            KEY_VALUE_STORE
 504                .write_kvp(
 505                    AGENT_PANEL_KEY.into(),
 506                    serde_json::to_string(&SerializedAgentPanel {
 507                        width,
 508                        selected_agent: Some(selected_agent),
 509                    })?,
 510                )
 511                .await?;
 512            anyhow::Ok(())
 513        }));
 514    }
 515    pub fn load(
 516        workspace: WeakEntity<Workspace>,
 517        prompt_builder: Arc<PromptBuilder>,
 518        mut cx: AsyncWindowContext,
 519    ) -> Task<Result<Entity<Self>>> {
 520        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
 521        cx.spawn(async move |cx| {
 522            let prompt_store = match prompt_store {
 523                Ok(prompt_store) => prompt_store.await.ok(),
 524                Err(_) => None,
 525            };
 526            let tools = cx.new(|_| ToolWorkingSet::default())?;
 527            let thread_store = workspace
 528                .update(cx, |workspace, cx| {
 529                    let project = workspace.project().clone();
 530                    ThreadStore::load(
 531                        project,
 532                        tools.clone(),
 533                        prompt_store.clone(),
 534                        prompt_builder.clone(),
 535                        cx,
 536                    )
 537                })?
 538                .await?;
 539
 540            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
 541            let context_store = workspace
 542                .update(cx, |workspace, cx| {
 543                    let project = workspace.project().clone();
 544                    assistant_context::ContextStore::new(
 545                        project,
 546                        prompt_builder.clone(),
 547                        slash_commands,
 548                        cx,
 549                    )
 550                })?
 551                .await?;
 552
 553            let serialized_panel = if let Some(panel) = cx
 554                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(AGENT_PANEL_KEY) })
 555                .await
 556                .log_err()
 557                .flatten()
 558            {
 559                Some(serde_json::from_str::<SerializedAgentPanel>(&panel)?)
 560            } else {
 561                None
 562            };
 563
 564            let panel = workspace.update_in(cx, |workspace, window, cx| {
 565                let panel = cx.new(|cx| {
 566                    Self::new(
 567                        workspace,
 568                        thread_store,
 569                        context_store,
 570                        prompt_store,
 571                        window,
 572                        cx,
 573                    )
 574                });
 575                if let Some(serialized_panel) = serialized_panel {
 576                    panel.update(cx, |panel, cx| {
 577                        panel.width = serialized_panel.width.map(|w| w.round());
 578                        if let Some(selected_agent) = serialized_panel.selected_agent {
 579                            panel.selected_agent = selected_agent;
 580                        }
 581                        cx.notify();
 582                    });
 583                }
 584                panel
 585            })?;
 586
 587            Ok(panel)
 588        })
 589    }
 590
 591    fn new(
 592        workspace: &Workspace,
 593        thread_store: Entity<ThreadStore>,
 594        context_store: Entity<TextThreadStore>,
 595        prompt_store: Option<Entity<PromptStore>>,
 596        window: &mut Window,
 597        cx: &mut Context<Self>,
 598    ) -> Self {
 599        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
 600        let fs = workspace.app_state().fs.clone();
 601        let user_store = workspace.app_state().user_store.clone();
 602        let project = workspace.project();
 603        let language_registry = project.read(cx).languages().clone();
 604        let client = workspace.client().clone();
 605        let workspace = workspace.weak_handle();
 606        let weak_self = cx.entity().downgrade();
 607
 608        let message_editor_context_store =
 609            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 610        let inline_assist_context_store =
 611            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 612
 613        let thread_id = thread.read(cx).id().clone();
 614
 615        let history_store = cx.new(|cx| {
 616            HistoryStore::new(
 617                thread_store.clone(),
 618                context_store.clone(),
 619                [HistoryEntryId::Thread(thread_id)],
 620                cx,
 621            )
 622        });
 623
 624        let message_editor = cx.new(|cx| {
 625            MessageEditor::new(
 626                fs.clone(),
 627                workspace.clone(),
 628                message_editor_context_store.clone(),
 629                prompt_store.clone(),
 630                thread_store.downgrade(),
 631                context_store.downgrade(),
 632                Some(history_store.downgrade()),
 633                thread.clone(),
 634                window,
 635                cx,
 636            )
 637        });
 638
 639        cx.observe(&history_store, |_, _, cx| cx.notify()).detach();
 640
 641        let active_thread = cx.new(|cx| {
 642            ActiveThread::new(
 643                thread.clone(),
 644                thread_store.clone(),
 645                context_store.clone(),
 646                message_editor_context_store.clone(),
 647                language_registry.clone(),
 648                workspace.clone(),
 649                window,
 650                cx,
 651            )
 652        });
 653
 654        let panel_type = AgentSettings::get_global(cx).default_view;
 655        let active_view = match panel_type {
 656            DefaultView::Thread => ActiveView::thread(active_thread, message_editor, window, cx),
 657            DefaultView::TextThread => {
 658                let context =
 659                    context_store.update(cx, |context_store, cx| context_store.create(cx));
 660                let lsp_adapter_delegate = make_lsp_adapter_delegate(&project.clone(), cx).unwrap();
 661                let context_editor = cx.new(|cx| {
 662                    let mut editor = TextThreadEditor::for_context(
 663                        context,
 664                        fs.clone(),
 665                        workspace.clone(),
 666                        project.clone(),
 667                        lsp_adapter_delegate,
 668                        window,
 669                        cx,
 670                    );
 671                    editor.insert_default_prompt(window, cx);
 672                    editor
 673                });
 674                ActiveView::prompt_editor(
 675                    context_editor,
 676                    history_store.clone(),
 677                    language_registry.clone(),
 678                    window,
 679                    cx,
 680                )
 681            }
 682        };
 683
 684        AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 685
 686        let weak_panel = weak_self.clone();
 687
 688        window.defer(cx, move |window, cx| {
 689            let panel = weak_panel.clone();
 690            let assistant_navigation_menu =
 691                ContextMenu::build_persistent(window, cx, move |mut menu, _window, cx| {
 692                    if let Some(panel) = panel.upgrade() {
 693                        menu = Self::populate_recently_opened_menu_section(menu, panel, cx);
 694                    }
 695                    menu.action("View All", Box::new(OpenHistory))
 696                        .end_slot_action(DeleteRecentlyOpenThread.boxed_clone())
 697                        .fixed_width(px(320.).into())
 698                        .keep_open_on_confirm(false)
 699                        .key_context("NavigationMenu")
 700                });
 701            weak_panel
 702                .update(cx, |panel, cx| {
 703                    cx.subscribe_in(
 704                        &assistant_navigation_menu,
 705                        window,
 706                        |_, menu, _: &DismissEvent, window, cx| {
 707                            menu.update(cx, |menu, _| {
 708                                menu.clear_selected();
 709                            });
 710                            cx.focus_self(window);
 711                        },
 712                    )
 713                    .detach();
 714                    panel.assistant_navigation_menu = Some(assistant_navigation_menu);
 715                })
 716                .ok();
 717        });
 718
 719        let _default_model_subscription = cx.subscribe(
 720            &LanguageModelRegistry::global(cx),
 721            |this, _, event: &language_model::Event, cx| match event {
 722                language_model::Event::DefaultModelChanged => match &this.active_view {
 723                    ActiveView::Thread { thread, .. } => {
 724                        thread
 725                            .read(cx)
 726                            .thread()
 727                            .clone()
 728                            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx));
 729                    }
 730                    ActiveView::ExternalAgentThread { .. }
 731                    | ActiveView::TextThread { .. }
 732                    | ActiveView::History
 733                    | ActiveView::Configuration => {}
 734                },
 735                _ => {}
 736            },
 737        );
 738
 739        let onboarding = cx.new(|cx| {
 740            AgentPanelOnboarding::new(
 741                user_store.clone(),
 742                client,
 743                |_window, cx| {
 744                    OnboardingUpsell::set_dismissed(true, cx);
 745                },
 746                cx,
 747            )
 748        });
 749
 750        Self {
 751            active_view,
 752            workspace,
 753            user_store,
 754            project: project.clone(),
 755            fs: fs.clone(),
 756            language_registry,
 757            thread_store: thread_store.clone(),
 758            _default_model_subscription,
 759            context_store,
 760            prompt_store,
 761            configuration: None,
 762            configuration_subscription: None,
 763            local_timezone: UtcOffset::from_whole_seconds(
 764                chrono::Local::now().offset().local_minus_utc(),
 765            )
 766            .unwrap(),
 767            inline_assist_context_store,
 768            previous_view: None,
 769            acp_message_history: Default::default(),
 770            history_store: history_store.clone(),
 771            history: cx.new(|cx| ThreadHistory::new(weak_self, history_store, window, cx)),
 772            hovered_recent_history_item: None,
 773            new_thread_menu_handle: PopoverMenuHandle::default(),
 774            agent_panel_menu_handle: PopoverMenuHandle::default(),
 775            assistant_navigation_menu_handle: PopoverMenuHandle::default(),
 776            assistant_navigation_menu: None,
 777            width: None,
 778            height: None,
 779            zoomed: false,
 780            pending_serialization: None,
 781            onboarding,
 782            selected_agent: AgentType::default(),
 783        }
 784    }
 785
 786    pub fn toggle_focus(
 787        workspace: &mut Workspace,
 788        _: &ToggleFocus,
 789        window: &mut Window,
 790        cx: &mut Context<Workspace>,
 791    ) {
 792        if workspace
 793            .panel::<Self>(cx)
 794            .is_some_and(|panel| panel.read(cx).enabled(cx))
 795            && !DisableAiSettings::get_global(cx).disable_ai
 796        {
 797            workspace.toggle_panel_focus::<Self>(window, cx);
 798        }
 799    }
 800
 801    pub(crate) fn local_timezone(&self) -> UtcOffset {
 802        self.local_timezone
 803    }
 804
 805    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 806        &self.prompt_store
 807    }
 808
 809    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 810        &self.inline_assist_context_store
 811    }
 812
 813    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 814        &self.thread_store
 815    }
 816
 817    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 818        &self.context_store
 819    }
 820
 821    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 822        match &self.active_view {
 823            ActiveView::Thread { thread, .. } => {
 824                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 825            }
 826            ActiveView::ExternalAgentThread { thread_view, .. } => {
 827                thread_view.update(cx, |thread_element, cx| thread_element.cancel(cx));
 828            }
 829            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
 830        }
 831    }
 832
 833    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 834        match &self.active_view {
 835            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 836            ActiveView::ExternalAgentThread { .. }
 837            | ActiveView::TextThread { .. }
 838            | ActiveView::History
 839            | ActiveView::Configuration => None,
 840        }
 841    }
 842
 843    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 844        // Preserve chat box text when using creating new thread
 845        let preserved_text = self
 846            .active_message_editor()
 847            .map(|editor| editor.read(cx).get_text(cx).trim().to_string());
 848
 849        let thread = self
 850            .thread_store
 851            .update(cx, |this, cx| this.create_thread(cx));
 852
 853        let context_store = cx.new(|_cx| {
 854            ContextStore::new(
 855                self.project.downgrade(),
 856                Some(self.thread_store.downgrade()),
 857            )
 858        });
 859
 860        if let Some(other_thread_id) = action.from_thread_id.clone() {
 861            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 862                this.open_thread(&other_thread_id, window, cx)
 863            });
 864
 865            cx.spawn({
 866                let context_store = context_store.clone();
 867
 868                async move |_panel, cx| {
 869                    let other_thread = other_thread_task.await?;
 870
 871                    context_store.update(cx, |this, cx| {
 872                        this.add_thread(other_thread, false, cx);
 873                    })?;
 874                    anyhow::Ok(())
 875                }
 876            })
 877            .detach_and_log_err(cx);
 878        }
 879
 880        let active_thread = cx.new(|cx| {
 881            ActiveThread::new(
 882                thread.clone(),
 883                self.thread_store.clone(),
 884                self.context_store.clone(),
 885                context_store.clone(),
 886                self.language_registry.clone(),
 887                self.workspace.clone(),
 888                window,
 889                cx,
 890            )
 891        });
 892
 893        let message_editor = cx.new(|cx| {
 894            MessageEditor::new(
 895                self.fs.clone(),
 896                self.workspace.clone(),
 897                context_store.clone(),
 898                self.prompt_store.clone(),
 899                self.thread_store.downgrade(),
 900                self.context_store.downgrade(),
 901                Some(self.history_store.downgrade()),
 902                thread.clone(),
 903                window,
 904                cx,
 905            )
 906        });
 907
 908        if let Some(text) = preserved_text {
 909            message_editor.update(cx, |editor, cx| {
 910                editor.set_text(text, window, cx);
 911            });
 912        }
 913
 914        message_editor.focus_handle(cx).focus(window);
 915
 916        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 917        self.set_active_view(thread_view, window, cx);
 918
 919        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
 920    }
 921
 922    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 923        let context = self
 924            .context_store
 925            .update(cx, |context_store, cx| context_store.create(cx));
 926        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 927            .log_err()
 928            .flatten();
 929
 930        let context_editor = cx.new(|cx| {
 931            let mut editor = TextThreadEditor::for_context(
 932                context,
 933                self.fs.clone(),
 934                self.workspace.clone(),
 935                self.project.clone(),
 936                lsp_adapter_delegate,
 937                window,
 938                cx,
 939            );
 940            editor.insert_default_prompt(window, cx);
 941            editor
 942        });
 943
 944        self.set_active_view(
 945            ActiveView::prompt_editor(
 946                context_editor.clone(),
 947                self.history_store.clone(),
 948                self.language_registry.clone(),
 949                window,
 950                cx,
 951            ),
 952            window,
 953            cx,
 954        );
 955        context_editor.focus_handle(cx).focus(window);
 956    }
 957
 958    fn new_external_thread(
 959        &mut self,
 960        agent_choice: Option<crate::ExternalAgent>,
 961        window: &mut Window,
 962        cx: &mut Context<Self>,
 963    ) {
 964        let workspace = self.workspace.clone();
 965        let project = self.project.clone();
 966        let message_history = self.acp_message_history.clone();
 967        let fs = self.fs.clone();
 968
 969        const LAST_USED_EXTERNAL_AGENT_KEY: &str = "agent_panel__last_used_external_agent";
 970
 971        #[derive(Default, Serialize, Deserialize)]
 972        struct LastUsedExternalAgent {
 973            agent: crate::ExternalAgent,
 974        }
 975
 976        let thread_store = self.thread_store.clone();
 977        let text_thread_store = self.context_store.clone();
 978
 979        cx.spawn_in(window, async move |this, cx| {
 980            let server: Rc<dyn AgentServer> = match agent_choice {
 981                Some(agent) => {
 982                    cx.background_spawn(async move {
 983                        if let Some(serialized) =
 984                            serde_json::to_string(&LastUsedExternalAgent { agent }).log_err()
 985                        {
 986                            KEY_VALUE_STORE
 987                                .write_kvp(LAST_USED_EXTERNAL_AGENT_KEY.to_string(), serialized)
 988                                .await
 989                                .log_err();
 990                        }
 991                    })
 992                    .detach();
 993
 994                    agent.server(fs)
 995                }
 996                None => cx
 997                    .background_spawn(async move {
 998                        KEY_VALUE_STORE.read_kvp(LAST_USED_EXTERNAL_AGENT_KEY)
 999                    })
1000                    .await
1001                    .log_err()
1002                    .flatten()
1003                    .and_then(|value| {
1004                        serde_json::from_str::<LastUsedExternalAgent>(&value).log_err()
1005                    })
1006                    .unwrap_or_default()
1007                    .agent
1008                    .server(fs),
1009            };
1010
1011            this.update_in(cx, |this, window, cx| {
1012                let thread_view = cx.new(|cx| {
1013                    crate::acp::AcpThreadView::new(
1014                        server,
1015                        workspace.clone(),
1016                        project,
1017                        thread_store.clone(),
1018                        text_thread_store.clone(),
1019                        message_history,
1020                        MIN_EDITOR_LINES,
1021                        Some(MAX_EDITOR_LINES),
1022                        window,
1023                        cx,
1024                    )
1025                });
1026
1027                this.set_active_view(ActiveView::ExternalAgentThread { thread_view }, window, cx);
1028            })
1029        })
1030        .detach_and_log_err(cx);
1031    }
1032
1033    fn deploy_rules_library(
1034        &mut self,
1035        action: &OpenRulesLibrary,
1036        _window: &mut Window,
1037        cx: &mut Context<Self>,
1038    ) {
1039        open_rules_library(
1040            self.language_registry.clone(),
1041            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
1042            Rc::new(|| {
1043                Rc::new(SlashCommandCompletionProvider::new(
1044                    Arc::new(SlashCommandWorkingSet::default()),
1045                    None,
1046                    None,
1047                ))
1048            }),
1049            action
1050                .prompt_to_select
1051                .map(|uuid| UserPromptId(uuid).into()),
1052            cx,
1053        )
1054        .detach_and_log_err(cx);
1055    }
1056
1057    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1058        if matches!(self.active_view, ActiveView::History) {
1059            if let Some(previous_view) = self.previous_view.take() {
1060                self.set_active_view(previous_view, window, cx);
1061            }
1062        } else {
1063            self.thread_store
1064                .update(cx, |thread_store, cx| thread_store.reload(cx))
1065                .detach_and_log_err(cx);
1066            self.set_active_view(ActiveView::History, window, cx);
1067        }
1068        cx.notify();
1069    }
1070
1071    pub(crate) fn open_saved_prompt_editor(
1072        &mut self,
1073        path: Arc<Path>,
1074        window: &mut Window,
1075        cx: &mut Context<Self>,
1076    ) -> Task<Result<()>> {
1077        let context = self
1078            .context_store
1079            .update(cx, |store, cx| store.open_local_context(path, cx));
1080        cx.spawn_in(window, async move |this, cx| {
1081            let context = context.await?;
1082            this.update_in(cx, |this, window, cx| {
1083                this.open_prompt_editor(context, window, cx);
1084            })
1085        })
1086    }
1087
1088    pub(crate) fn open_prompt_editor(
1089        &mut self,
1090        context: Entity<AssistantContext>,
1091        window: &mut Window,
1092        cx: &mut Context<Self>,
1093    ) {
1094        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
1095            .log_err()
1096            .flatten();
1097        let editor = cx.new(|cx| {
1098            TextThreadEditor::for_context(
1099                context,
1100                self.fs.clone(),
1101                self.workspace.clone(),
1102                self.project.clone(),
1103                lsp_adapter_delegate,
1104                window,
1105                cx,
1106            )
1107        });
1108        self.set_active_view(
1109            ActiveView::prompt_editor(
1110                editor.clone(),
1111                self.history_store.clone(),
1112                self.language_registry.clone(),
1113                window,
1114                cx,
1115            ),
1116            window,
1117            cx,
1118        );
1119    }
1120
1121    pub(crate) fn open_thread_by_id(
1122        &mut self,
1123        thread_id: &ThreadId,
1124        window: &mut Window,
1125        cx: &mut Context<Self>,
1126    ) -> Task<Result<()>> {
1127        let open_thread_task = self
1128            .thread_store
1129            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
1130        cx.spawn_in(window, async move |this, cx| {
1131            let thread = open_thread_task.await?;
1132            this.update_in(cx, |this, window, cx| {
1133                this.open_thread(thread, window, cx);
1134                anyhow::Ok(())
1135            })??;
1136            Ok(())
1137        })
1138    }
1139
1140    pub(crate) fn open_thread(
1141        &mut self,
1142        thread: Entity<Thread>,
1143        window: &mut Window,
1144        cx: &mut Context<Self>,
1145    ) {
1146        let context_store = cx.new(|_cx| {
1147            ContextStore::new(
1148                self.project.downgrade(),
1149                Some(self.thread_store.downgrade()),
1150            )
1151        });
1152
1153        let active_thread = cx.new(|cx| {
1154            ActiveThread::new(
1155                thread.clone(),
1156                self.thread_store.clone(),
1157                self.context_store.clone(),
1158                context_store.clone(),
1159                self.language_registry.clone(),
1160                self.workspace.clone(),
1161                window,
1162                cx,
1163            )
1164        });
1165
1166        let message_editor = cx.new(|cx| {
1167            MessageEditor::new(
1168                self.fs.clone(),
1169                self.workspace.clone(),
1170                context_store,
1171                self.prompt_store.clone(),
1172                self.thread_store.downgrade(),
1173                self.context_store.downgrade(),
1174                Some(self.history_store.downgrade()),
1175                thread.clone(),
1176                window,
1177                cx,
1178            )
1179        });
1180        message_editor.focus_handle(cx).focus(window);
1181
1182        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1183        self.set_active_view(thread_view, window, cx);
1184        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
1185    }
1186
1187    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1188        match self.active_view {
1189            ActiveView::Configuration | ActiveView::History => {
1190                if let Some(previous_view) = self.previous_view.take() {
1191                    self.active_view = previous_view;
1192
1193                    match &self.active_view {
1194                        ActiveView::Thread { message_editor, .. } => {
1195                            message_editor.focus_handle(cx).focus(window);
1196                        }
1197                        ActiveView::ExternalAgentThread { thread_view } => {
1198                            thread_view.focus_handle(cx).focus(window);
1199                        }
1200                        ActiveView::TextThread { context_editor, .. } => {
1201                            context_editor.focus_handle(cx).focus(window);
1202                        }
1203                        ActiveView::History | ActiveView::Configuration => {}
1204                    }
1205                }
1206                cx.notify();
1207            }
1208            _ => {}
1209        }
1210    }
1211
1212    pub fn toggle_navigation_menu(
1213        &mut self,
1214        _: &ToggleNavigationMenu,
1215        window: &mut Window,
1216        cx: &mut Context<Self>,
1217    ) {
1218        self.assistant_navigation_menu_handle.toggle(window, cx);
1219    }
1220
1221    pub fn toggle_options_menu(
1222        &mut self,
1223        _: &ToggleOptionsMenu,
1224        window: &mut Window,
1225        cx: &mut Context<Self>,
1226    ) {
1227        self.agent_panel_menu_handle.toggle(window, cx);
1228    }
1229
1230    pub fn toggle_new_thread_menu(
1231        &mut self,
1232        _: &ToggleNewThreadMenu,
1233        window: &mut Window,
1234        cx: &mut Context<Self>,
1235    ) {
1236        self.new_thread_menu_handle.toggle(window, cx);
1237    }
1238
1239    pub fn increase_font_size(
1240        &mut self,
1241        action: &IncreaseBufferFontSize,
1242        _: &mut Window,
1243        cx: &mut Context<Self>,
1244    ) {
1245        self.handle_font_size_action(action.persist, px(1.0), cx);
1246    }
1247
1248    pub fn decrease_font_size(
1249        &mut self,
1250        action: &DecreaseBufferFontSize,
1251        _: &mut Window,
1252        cx: &mut Context<Self>,
1253    ) {
1254        self.handle_font_size_action(action.persist, px(-1.0), cx);
1255    }
1256
1257    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1258        match self.active_view.which_font_size_used() {
1259            WhichFontSize::AgentFont => {
1260                if persist {
1261                    update_settings_file::<ThemeSettings>(
1262                        self.fs.clone(),
1263                        cx,
1264                        move |settings, cx| {
1265                            let agent_font_size =
1266                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1267                            let _ = settings
1268                                .agent_font_size
1269                                .insert(theme::clamp_font_size(agent_font_size).0);
1270                        },
1271                    );
1272                } else {
1273                    theme::adjust_agent_font_size(cx, |size| {
1274                        *size += delta;
1275                    });
1276                }
1277            }
1278            WhichFontSize::BufferFont => {
1279                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1280                // default handler that changes that font size.
1281                cx.propagate();
1282            }
1283            WhichFontSize::None => {}
1284        }
1285    }
1286
1287    pub fn reset_font_size(
1288        &mut self,
1289        action: &ResetBufferFontSize,
1290        _: &mut Window,
1291        cx: &mut Context<Self>,
1292    ) {
1293        if action.persist {
1294            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1295                settings.agent_font_size = None;
1296            });
1297        } else {
1298            theme::reset_agent_font_size(cx);
1299        }
1300    }
1301
1302    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1303        if self.zoomed {
1304            cx.emit(PanelEvent::ZoomOut);
1305        } else {
1306            if !self.focus_handle(cx).contains_focused(window, cx) {
1307                cx.focus_self(window);
1308            }
1309            cx.emit(PanelEvent::ZoomIn);
1310        }
1311    }
1312
1313    pub fn open_agent_diff(
1314        &mut self,
1315        _: &OpenAgentDiff,
1316        window: &mut Window,
1317        cx: &mut Context<Self>,
1318    ) {
1319        match &self.active_view {
1320            ActiveView::Thread { thread, .. } => {
1321                let thread = thread.read(cx).thread().clone();
1322                self.workspace
1323                    .update(cx, |workspace, cx| {
1324                        AgentDiffPane::deploy_in_workspace(
1325                            AgentDiffThread::Native(thread),
1326                            workspace,
1327                            window,
1328                            cx,
1329                        )
1330                    })
1331                    .log_err();
1332            }
1333            ActiveView::ExternalAgentThread { .. }
1334            | ActiveView::TextThread { .. }
1335            | ActiveView::History
1336            | ActiveView::Configuration => {}
1337        }
1338    }
1339
1340    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1341        let context_server_store = self.project.read(cx).context_server_store();
1342        let tools = self.thread_store.read(cx).tools();
1343        let fs = self.fs.clone();
1344
1345        self.set_active_view(ActiveView::Configuration, window, cx);
1346        self.configuration = Some(cx.new(|cx| {
1347            AgentConfiguration::new(
1348                fs,
1349                context_server_store,
1350                tools,
1351                self.language_registry.clone(),
1352                self.workspace.clone(),
1353                window,
1354                cx,
1355            )
1356        }));
1357
1358        if let Some(configuration) = self.configuration.as_ref() {
1359            self.configuration_subscription = Some(cx.subscribe_in(
1360                configuration,
1361                window,
1362                Self::handle_agent_configuration_event,
1363            ));
1364
1365            configuration.focus_handle(cx).focus(window);
1366        }
1367    }
1368
1369    pub(crate) fn open_active_thread_as_markdown(
1370        &mut self,
1371        _: &OpenActiveThreadAsMarkdown,
1372        window: &mut Window,
1373        cx: &mut Context<Self>,
1374    ) {
1375        let Some(workspace) = self.workspace.upgrade() else {
1376            return;
1377        };
1378
1379        match &self.active_view {
1380            ActiveView::Thread { thread, .. } => {
1381                active_thread::open_active_thread_as_markdown(
1382                    thread.read(cx).thread().clone(),
1383                    workspace,
1384                    window,
1385                    cx,
1386                )
1387                .detach_and_log_err(cx);
1388            }
1389            ActiveView::ExternalAgentThread { thread_view } => {
1390                thread_view
1391                    .update(cx, |thread_view, cx| {
1392                        thread_view.open_thread_as_markdown(workspace, window, cx)
1393                    })
1394                    .detach_and_log_err(cx);
1395            }
1396            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1397        }
1398    }
1399
1400    fn handle_agent_configuration_event(
1401        &mut self,
1402        _entity: &Entity<AgentConfiguration>,
1403        event: &AssistantConfigurationEvent,
1404        window: &mut Window,
1405        cx: &mut Context<Self>,
1406    ) {
1407        match event {
1408            AssistantConfigurationEvent::NewThread(provider) => {
1409                if LanguageModelRegistry::read_global(cx)
1410                    .default_model()
1411                    .map_or(true, |model| model.provider.id() != provider.id())
1412                {
1413                    if let Some(model) = provider.default_model(cx) {
1414                        update_settings_file::<AgentSettings>(
1415                            self.fs.clone(),
1416                            cx,
1417                            move |settings, _| settings.set_model(model),
1418                        );
1419                    }
1420                }
1421
1422                self.new_thread(&NewThread::default(), window, cx);
1423                if let Some((thread, model)) =
1424                    self.active_thread(cx).zip(provider.default_model(cx))
1425                {
1426                    thread.update(cx, |thread, cx| {
1427                        thread.set_configured_model(
1428                            Some(ConfiguredModel {
1429                                provider: provider.clone(),
1430                                model,
1431                            }),
1432                            cx,
1433                        );
1434                    });
1435                }
1436            }
1437        }
1438    }
1439
1440    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<Thread>> {
1441        match &self.active_view {
1442            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1443            _ => None,
1444        }
1445    }
1446
1447    pub(crate) fn delete_thread(
1448        &mut self,
1449        thread_id: &ThreadId,
1450        cx: &mut Context<Self>,
1451    ) -> Task<Result<()>> {
1452        self.thread_store
1453            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1454    }
1455
1456    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1457        let ActiveView::Thread { thread, .. } = &self.active_view else {
1458            return;
1459        };
1460
1461        let thread_state = thread.read(cx).thread().read(cx);
1462        if !thread_state.tool_use_limit_reached() {
1463            return;
1464        }
1465
1466        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1467        if let Some(model) = model {
1468            thread.update(cx, |active_thread, cx| {
1469                active_thread.thread().update(cx, |thread, cx| {
1470                    thread.insert_invisible_continue_message(cx);
1471                    thread.advance_prompt_id();
1472                    thread.send_to_model(
1473                        model,
1474                        CompletionIntent::UserPrompt,
1475                        Some(window.window_handle()),
1476                        cx,
1477                    );
1478                });
1479            });
1480        } else {
1481            log::warn!("No configured model available for continuation");
1482        }
1483    }
1484
1485    fn toggle_burn_mode(
1486        &mut self,
1487        _: &ToggleBurnMode,
1488        _window: &mut Window,
1489        cx: &mut Context<Self>,
1490    ) {
1491        let ActiveView::Thread { thread, .. } = &self.active_view else {
1492            return;
1493        };
1494
1495        thread.update(cx, |active_thread, cx| {
1496            active_thread.thread().update(cx, |thread, _cx| {
1497                let current_mode = thread.completion_mode();
1498
1499                thread.set_completion_mode(match current_mode {
1500                    CompletionMode::Burn => CompletionMode::Normal,
1501                    CompletionMode::Normal => CompletionMode::Burn,
1502                });
1503            });
1504        });
1505    }
1506
1507    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1508        match &self.active_view {
1509            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1510            _ => None,
1511        }
1512    }
1513
1514    pub(crate) fn delete_context(
1515        &mut self,
1516        path: Arc<Path>,
1517        cx: &mut Context<Self>,
1518    ) -> Task<Result<()>> {
1519        self.context_store
1520            .update(cx, |this, cx| this.delete_local_context(path, cx))
1521    }
1522
1523    fn set_active_view(
1524        &mut self,
1525        new_view: ActiveView,
1526        window: &mut Window,
1527        cx: &mut Context<Self>,
1528    ) {
1529        let current_is_history = matches!(self.active_view, ActiveView::History);
1530        let new_is_history = matches!(new_view, ActiveView::History);
1531
1532        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1533        let new_is_config = matches!(new_view, ActiveView::Configuration);
1534
1535        let current_is_special = current_is_history || current_is_config;
1536        let new_is_special = new_is_history || new_is_config;
1537
1538        match &self.active_view {
1539            ActiveView::Thread { thread, .. } => {
1540                let thread = thread.read(cx);
1541                if thread.is_empty() {
1542                    let id = thread.thread().read(cx).id().clone();
1543                    self.history_store.update(cx, |store, cx| {
1544                        store.remove_recently_opened_thread(id, cx);
1545                    });
1546                }
1547            }
1548            _ => {}
1549        }
1550
1551        match &new_view {
1552            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1553                let id = thread.read(cx).thread().read(cx).id().clone();
1554                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1555            }),
1556            ActiveView::TextThread { context_editor, .. } => {
1557                self.history_store.update(cx, |store, cx| {
1558                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1559                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1560                    }
1561                })
1562            }
1563            ActiveView::ExternalAgentThread { .. } => {}
1564            ActiveView::History | ActiveView::Configuration => {}
1565        }
1566
1567        if current_is_special && !new_is_special {
1568            self.active_view = new_view;
1569        } else if !current_is_special && new_is_special {
1570            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1571        } else {
1572            if !new_is_special {
1573                self.previous_view = None;
1574            }
1575            self.active_view = new_view;
1576        }
1577
1578        self.acp_message_history.borrow_mut().reset_position();
1579
1580        self.focus_handle(cx).focus(window);
1581    }
1582
1583    fn populate_recently_opened_menu_section(
1584        mut menu: ContextMenu,
1585        panel: Entity<Self>,
1586        cx: &mut Context<ContextMenu>,
1587    ) -> ContextMenu {
1588        let entries = panel
1589            .read(cx)
1590            .history_store
1591            .read(cx)
1592            .recently_opened_entries(cx);
1593
1594        if entries.is_empty() {
1595            return menu;
1596        }
1597
1598        menu = menu.header("Recently Opened");
1599
1600        for entry in entries {
1601            let title = entry.title().clone();
1602            let id = entry.id();
1603
1604            menu = menu.entry_with_end_slot_on_hover(
1605                title,
1606                None,
1607                {
1608                    let panel = panel.downgrade();
1609                    let id = id.clone();
1610                    move |window, cx| {
1611                        let id = id.clone();
1612                        panel
1613                            .update(cx, move |this, cx| match id {
1614                                HistoryEntryId::Thread(id) => this
1615                                    .open_thread_by_id(&id, window, cx)
1616                                    .detach_and_log_err(cx),
1617                                HistoryEntryId::Context(path) => this
1618                                    .open_saved_prompt_editor(path.clone(), window, cx)
1619                                    .detach_and_log_err(cx),
1620                            })
1621                            .ok();
1622                    }
1623                },
1624                IconName::Close,
1625                "Close Entry".into(),
1626                {
1627                    let panel = panel.downgrade();
1628                    let id = id.clone();
1629                    move |_window, cx| {
1630                        panel
1631                            .update(cx, |this, cx| {
1632                                this.history_store.update(cx, |history_store, cx| {
1633                                    history_store.remove_recently_opened_entry(&id, cx);
1634                                });
1635                            })
1636                            .ok();
1637                    }
1638                },
1639            );
1640        }
1641
1642        menu = menu.separator();
1643
1644        menu
1645    }
1646
1647    pub fn set_selected_agent(&mut self, agent: AgentType, cx: &mut Context<Self>) {
1648        if self.selected_agent != agent {
1649            self.selected_agent = agent;
1650            self.serialize(cx);
1651        }
1652    }
1653
1654    pub fn selected_agent(&self) -> AgentType {
1655        self.selected_agent
1656    }
1657}
1658
1659impl Focusable for AgentPanel {
1660    fn focus_handle(&self, cx: &App) -> FocusHandle {
1661        match &self.active_view {
1662            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1663            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1664            ActiveView::History => self.history.focus_handle(cx),
1665            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1666            ActiveView::Configuration => {
1667                if let Some(configuration) = self.configuration.as_ref() {
1668                    configuration.focus_handle(cx)
1669                } else {
1670                    cx.focus_handle()
1671                }
1672            }
1673        }
1674    }
1675}
1676
1677fn agent_panel_dock_position(cx: &App) -> DockPosition {
1678    match AgentSettings::get_global(cx).dock {
1679        AgentDockPosition::Left => DockPosition::Left,
1680        AgentDockPosition::Bottom => DockPosition::Bottom,
1681        AgentDockPosition::Right => DockPosition::Right,
1682    }
1683}
1684
1685impl EventEmitter<PanelEvent> for AgentPanel {}
1686
1687impl Panel for AgentPanel {
1688    fn persistent_name() -> &'static str {
1689        "AgentPanel"
1690    }
1691
1692    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1693        agent_panel_dock_position(cx)
1694    }
1695
1696    fn position_is_valid(&self, position: DockPosition) -> bool {
1697        position != DockPosition::Bottom
1698    }
1699
1700    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1701        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1702            let dock = match position {
1703                DockPosition::Left => AgentDockPosition::Left,
1704                DockPosition::Bottom => AgentDockPosition::Bottom,
1705                DockPosition::Right => AgentDockPosition::Right,
1706            };
1707            settings.set_dock(dock);
1708        });
1709    }
1710
1711    fn size(&self, window: &Window, cx: &App) -> Pixels {
1712        let settings = AgentSettings::get_global(cx);
1713        match self.position(window, cx) {
1714            DockPosition::Left | DockPosition::Right => {
1715                self.width.unwrap_or(settings.default_width)
1716            }
1717            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1718        }
1719    }
1720
1721    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1722        match self.position(window, cx) {
1723            DockPosition::Left | DockPosition::Right => self.width = size,
1724            DockPosition::Bottom => self.height = size,
1725        }
1726        self.serialize(cx);
1727        cx.notify();
1728    }
1729
1730    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1731
1732    fn remote_id() -> Option<proto::PanelId> {
1733        Some(proto::PanelId::AssistantPanel)
1734    }
1735
1736    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1737        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1738    }
1739
1740    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1741        Some("Agent Panel")
1742    }
1743
1744    fn toggle_action(&self) -> Box<dyn Action> {
1745        Box::new(ToggleFocus)
1746    }
1747
1748    fn activation_priority(&self) -> u32 {
1749        3
1750    }
1751
1752    fn enabled(&self, cx: &App) -> bool {
1753        DisableAiSettings::get_global(cx).disable_ai.not() && AgentSettings::get_global(cx).enabled
1754    }
1755
1756    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1757        self.zoomed
1758    }
1759
1760    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1761        self.zoomed = zoomed;
1762        cx.notify();
1763    }
1764}
1765
1766impl AgentPanel {
1767    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1768        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1769
1770        let content = match &self.active_view {
1771            ActiveView::Thread {
1772                thread: active_thread,
1773                change_title_editor,
1774                ..
1775            } => {
1776                let state = {
1777                    let active_thread = active_thread.read(cx);
1778                    if active_thread.is_empty() {
1779                        &ThreadSummary::Pending
1780                    } else {
1781                        active_thread.summary(cx)
1782                    }
1783                };
1784
1785                match state {
1786                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1787                        .truncate()
1788                        .into_any_element(),
1789                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1790                        .truncate()
1791                        .into_any_element(),
1792                    ThreadSummary::Ready(_) => div()
1793                        .w_full()
1794                        .child(change_title_editor.clone())
1795                        .into_any_element(),
1796                    ThreadSummary::Error => h_flex()
1797                        .w_full()
1798                        .child(change_title_editor.clone())
1799                        .child(
1800                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1801                                .on_click({
1802                                    let active_thread = active_thread.clone();
1803                                    move |_, _window, cx| {
1804                                        active_thread.update(cx, |thread, cx| {
1805                                            thread.regenerate_summary(cx);
1806                                        });
1807                                    }
1808                                })
1809                                .tooltip(move |_window, cx| {
1810                                    cx.new(|_| {
1811                                        Tooltip::new("Failed to generate title")
1812                                            .meta("Click to try again")
1813                                    })
1814                                    .into()
1815                                }),
1816                        )
1817                        .into_any_element(),
1818                }
1819            }
1820            ActiveView::ExternalAgentThread { thread_view } => {
1821                Label::new(thread_view.read(cx).title(cx))
1822                    .truncate()
1823                    .into_any_element()
1824            }
1825            ActiveView::TextThread {
1826                title_editor,
1827                context_editor,
1828                ..
1829            } => {
1830                let summary = context_editor.read(cx).context().read(cx).summary();
1831
1832                match summary {
1833                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1834                        .truncate()
1835                        .into_any_element(),
1836                    ContextSummary::Content(summary) => {
1837                        if summary.done {
1838                            div()
1839                                .w_full()
1840                                .child(title_editor.clone())
1841                                .into_any_element()
1842                        } else {
1843                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
1844                                .truncate()
1845                                .into_any_element()
1846                        }
1847                    }
1848                    ContextSummary::Error => h_flex()
1849                        .w_full()
1850                        .child(title_editor.clone())
1851                        .child(
1852                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1853                                .on_click({
1854                                    let context_editor = context_editor.clone();
1855                                    move |_, _window, cx| {
1856                                        context_editor.update(cx, |context_editor, cx| {
1857                                            context_editor.regenerate_summary(cx);
1858                                        });
1859                                    }
1860                                })
1861                                .tooltip(move |_window, cx| {
1862                                    cx.new(|_| {
1863                                        Tooltip::new("Failed to generate title")
1864                                            .meta("Click to try again")
1865                                    })
1866                                    .into()
1867                                }),
1868                        )
1869                        .into_any_element(),
1870                }
1871            }
1872            ActiveView::History => Label::new("History").truncate().into_any_element(),
1873            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
1874        };
1875
1876        h_flex()
1877            .key_context("TitleEditor")
1878            .id("TitleEditor")
1879            .flex_grow()
1880            .w_full()
1881            .max_w_full()
1882            .overflow_x_scroll()
1883            .child(content)
1884            .into_any()
1885    }
1886
1887    fn render_panel_options_menu(
1888        &self,
1889        window: &mut Window,
1890        cx: &mut Context<Self>,
1891    ) -> impl IntoElement {
1892        let user_store = self.user_store.read(cx);
1893        let usage = user_store.model_request_usage();
1894        let account_url = zed_urls::account_url(cx);
1895
1896        let focus_handle = self.focus_handle(cx);
1897
1898        let full_screen_label = if self.is_zoomed(window, cx) {
1899            "Disable Full Screen"
1900        } else {
1901            "Enable Full Screen"
1902        };
1903
1904        PopoverMenu::new("agent-options-menu")
1905            .trigger_with_tooltip(
1906                IconButton::new("agent-options-menu", IconName::Ellipsis)
1907                    .icon_size(IconSize::Small),
1908                {
1909                    let focus_handle = focus_handle.clone();
1910                    move |window, cx| {
1911                        Tooltip::for_action_in(
1912                            "Toggle Agent Menu",
1913                            &ToggleOptionsMenu,
1914                            &focus_handle,
1915                            window,
1916                            cx,
1917                        )
1918                    }
1919                },
1920            )
1921            .anchor(Corner::TopRight)
1922            .with_handle(self.agent_panel_menu_handle.clone())
1923            .menu({
1924                let focus_handle = focus_handle.clone();
1925                move |window, cx| {
1926                    Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
1927                        menu = menu.context(focus_handle.clone());
1928                        if let Some(usage) = usage {
1929                            menu = menu
1930                                .header_with_link("Prompt Usage", "Manage", account_url.clone())
1931                                .custom_entry(
1932                                    move |_window, cx| {
1933                                        let used_percentage = match usage.limit {
1934                                            UsageLimit::Limited(limit) => {
1935                                                Some((usage.amount as f32 / limit as f32) * 100.)
1936                                            }
1937                                            UsageLimit::Unlimited => None,
1938                                        };
1939
1940                                        h_flex()
1941                                            .flex_1()
1942                                            .gap_1p5()
1943                                            .children(used_percentage.map(|percent| {
1944                                                ProgressBar::new("usage", percent, 100., cx)
1945                                            }))
1946                                            .child(
1947                                                Label::new(match usage.limit {
1948                                                    UsageLimit::Limited(limit) => {
1949                                                        format!("{} / {limit}", usage.amount)
1950                                                    }
1951                                                    UsageLimit::Unlimited => {
1952                                                        format!("{} / ∞", usage.amount)
1953                                                    }
1954                                                })
1955                                                .size(LabelSize::Small)
1956                                                .color(Color::Muted),
1957                                            )
1958                                            .into_any_element()
1959                                    },
1960                                    move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
1961                                )
1962                                .separator()
1963                        }
1964
1965                        menu = menu
1966                            .header("MCP Servers")
1967                            .action(
1968                                "View Server Extensions",
1969                                Box::new(zed_actions::Extensions {
1970                                    category_filter: Some(
1971                                        zed_actions::ExtensionCategoryFilter::ContextServers,
1972                                    ),
1973                                    id: None,
1974                                }),
1975                            )
1976                            .action("Add Custom Server…", Box::new(AddContextServer))
1977                            .separator();
1978
1979                        menu = menu
1980                            .action("Rules…", Box::new(OpenRulesLibrary::default()))
1981                            .action("Settings", Box::new(OpenSettings))
1982                            .separator()
1983                            .action(full_screen_label, Box::new(ToggleZoom));
1984                        menu
1985                    }))
1986                }
1987            })
1988    }
1989
1990    fn render_recent_entries_menu(
1991        &self,
1992        icon: IconName,
1993        cx: &mut Context<Self>,
1994    ) -> impl IntoElement {
1995        let focus_handle = self.focus_handle(cx);
1996
1997        PopoverMenu::new("agent-nav-menu")
1998            .trigger_with_tooltip(
1999                IconButton::new("agent-nav-menu", icon).icon_size(IconSize::Small),
2000                {
2001                    let focus_handle = focus_handle.clone();
2002                    move |window, cx| {
2003                        Tooltip::for_action_in(
2004                            "Toggle Panel Menu",
2005                            &ToggleNavigationMenu,
2006                            &focus_handle,
2007                            window,
2008                            cx,
2009                        )
2010                    }
2011                },
2012            )
2013            .anchor(Corner::TopLeft)
2014            .with_handle(self.assistant_navigation_menu_handle.clone())
2015            .menu({
2016                let menu = self.assistant_navigation_menu.clone();
2017                move |window, cx| {
2018                    if let Some(menu) = menu.as_ref() {
2019                        menu.update(cx, |_, cx| {
2020                            cx.defer_in(window, |menu, window, cx| {
2021                                menu.rebuild(window, cx);
2022                            });
2023                        })
2024                    }
2025                    menu.clone()
2026                }
2027            })
2028    }
2029
2030    fn render_toolbar_back_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
2031        let focus_handle = self.focus_handle(cx);
2032
2033        IconButton::new("go-back", IconName::ArrowLeft)
2034            .icon_size(IconSize::Small)
2035            .on_click(cx.listener(|this, _, window, cx| {
2036                this.go_back(&workspace::GoBack, window, cx);
2037            }))
2038            .tooltip({
2039                let focus_handle = focus_handle.clone();
2040
2041                move |window, cx| {
2042                    Tooltip::for_action_in("Go Back", &workspace::GoBack, &focus_handle, window, cx)
2043                }
2044            })
2045    }
2046
2047    fn render_toolbar_old(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2048        let focus_handle = self.focus_handle(cx);
2049
2050        let active_thread = match &self.active_view {
2051            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2052            ActiveView::ExternalAgentThread { .. }
2053            | ActiveView::TextThread { .. }
2054            | ActiveView::History
2055            | ActiveView::Configuration => None,
2056        };
2057
2058        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2059            .trigger_with_tooltip(
2060                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2061                Tooltip::text("New Thread…"),
2062            )
2063            .anchor(Corner::TopRight)
2064            .with_handle(self.new_thread_menu_handle.clone())
2065            .menu({
2066                let focus_handle = focus_handle.clone();
2067                move |window, cx| {
2068                    let active_thread = active_thread.clone();
2069                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2070                        menu = menu
2071                            .context(focus_handle.clone())
2072                            .when_some(active_thread, |this, active_thread| {
2073                                let thread = active_thread.read(cx);
2074
2075                                if !thread.is_empty() {
2076                                    let thread_id = thread.id().clone();
2077                                    this.item(
2078                                        ContextMenuEntry::new("New From Summary")
2079                                            .icon(IconName::ThreadFromSummary)
2080                                            .icon_color(Color::Muted)
2081                                            .handler(move |window, cx| {
2082                                                window.dispatch_action(
2083                                                    Box::new(NewThread {
2084                                                        from_thread_id: Some(thread_id.clone()),
2085                                                    }),
2086                                                    cx,
2087                                                );
2088                                            }),
2089                                    )
2090                                } else {
2091                                    this
2092                                }
2093                            })
2094                            .item(
2095                                ContextMenuEntry::new("New Thread")
2096                                    .icon(IconName::Thread)
2097                                    .icon_color(Color::Muted)
2098                                    .action(NewThread::default().boxed_clone())
2099                                    .handler(move |window, cx| {
2100                                        window.dispatch_action(
2101                                            NewThread::default().boxed_clone(),
2102                                            cx,
2103                                        );
2104                                    }),
2105                            )
2106                            .item(
2107                                ContextMenuEntry::new("New Text Thread")
2108                                    .icon(IconName::TextThread)
2109                                    .icon_color(Color::Muted)
2110                                    .action(NewTextThread.boxed_clone())
2111                                    .handler(move |window, cx| {
2112                                        window.dispatch_action(NewTextThread.boxed_clone(), cx);
2113                                    }),
2114                            );
2115                        menu
2116                    }))
2117                }
2118            });
2119
2120        h_flex()
2121            .id("assistant-toolbar")
2122            .h(Tab::container_height(cx))
2123            .max_w_full()
2124            .flex_none()
2125            .justify_between()
2126            .gap_2()
2127            .bg(cx.theme().colors().tab_bar_background)
2128            .border_b_1()
2129            .border_color(cx.theme().colors().border)
2130            .child(
2131                h_flex()
2132                    .size_full()
2133                    .pl_1()
2134                    .gap_1()
2135                    .child(match &self.active_view {
2136                        ActiveView::History | ActiveView::Configuration => div()
2137                            .pl(DynamicSpacing::Base04.rems(cx))
2138                            .child(self.render_toolbar_back_button(cx))
2139                            .into_any_element(),
2140                        _ => self
2141                            .render_recent_entries_menu(IconName::MenuAlt, cx)
2142                            .into_any_element(),
2143                    })
2144                    .child(self.render_title_view(window, cx)),
2145            )
2146            .child(
2147                h_flex()
2148                    .h_full()
2149                    .gap_2()
2150                    .children(self.render_token_count(cx))
2151                    .child(
2152                        h_flex()
2153                            .h_full()
2154                            .gap(DynamicSpacing::Base02.rems(cx))
2155                            .px(DynamicSpacing::Base08.rems(cx))
2156                            .border_l_1()
2157                            .border_color(cx.theme().colors().border)
2158                            .child(new_thread_menu)
2159                            .child(self.render_panel_options_menu(window, cx)),
2160                    ),
2161            )
2162    }
2163
2164    fn render_toolbar_new(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2165        let focus_handle = self.focus_handle(cx);
2166
2167        let active_thread = match &self.active_view {
2168            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2169            ActiveView::ExternalAgentThread { .. }
2170            | ActiveView::TextThread { .. }
2171            | ActiveView::History
2172            | ActiveView::Configuration => None,
2173        };
2174
2175        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2176            .trigger_with_tooltip(
2177                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2178                {
2179                    let focus_handle = focus_handle.clone();
2180                    move |window, cx| {
2181                        Tooltip::for_action_in(
2182                            "New…",
2183                            &ToggleNewThreadMenu,
2184                            &focus_handle,
2185                            window,
2186                            cx,
2187                        )
2188                    }
2189                },
2190            )
2191            .anchor(Corner::TopLeft)
2192            .with_handle(self.new_thread_menu_handle.clone())
2193            .menu({
2194                let focus_handle = focus_handle.clone();
2195                let workspace = self.workspace.clone();
2196
2197                move |window, cx| {
2198                    let active_thread = active_thread.clone();
2199                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2200                        menu = menu
2201                            .context(focus_handle.clone())
2202                            .header("Zed Agent")
2203                            .when_some(active_thread, |this, active_thread| {
2204                                let thread = active_thread.read(cx);
2205
2206                                if !thread.is_empty() {
2207                                    let thread_id = thread.id().clone();
2208                                    this.item(
2209                                        ContextMenuEntry::new("New From Summary")
2210                                            .icon(IconName::ThreadFromSummary)
2211                                            .icon_color(Color::Muted)
2212                                            .handler(move |window, cx| {
2213                                                window.dispatch_action(
2214                                                    Box::new(NewThread {
2215                                                        from_thread_id: Some(thread_id.clone()),
2216                                                    }),
2217                                                    cx,
2218                                                );
2219                                            }),
2220                                    )
2221                                } else {
2222                                    this
2223                                }
2224                            })
2225                            .item(
2226                                ContextMenuEntry::new("New Thread")
2227                                    .icon(IconName::Thread)
2228                                    .icon_color(Color::Muted)
2229                                    .action(NewThread::default().boxed_clone())
2230                                    .handler({
2231                                        let workspace = workspace.clone();
2232                                        move |window, cx| {
2233                                            if let Some(workspace) = workspace.upgrade() {
2234                                                workspace.update(cx, |workspace, cx| {
2235                                                    if let Some(panel) =
2236                                                        workspace.panel::<AgentPanel>(cx)
2237                                                    {
2238                                                        panel.update(cx, |panel, cx| {
2239                                                            panel.set_selected_agent(
2240                                                                AgentType::Zed,
2241                                                                cx,
2242                                                            );
2243                                                        });
2244                                                    }
2245                                                });
2246                                            }
2247                                            window.dispatch_action(
2248                                                NewThread::default().boxed_clone(),
2249                                                cx,
2250                                            );
2251                                        }
2252                                    }),
2253                            )
2254                            .item(
2255                                ContextMenuEntry::new("New Text Thread")
2256                                    .icon(IconName::TextThread)
2257                                    .icon_color(Color::Muted)
2258                                    .action(NewTextThread.boxed_clone())
2259                                    .handler({
2260                                        let workspace = workspace.clone();
2261                                        move |window, cx| {
2262                                            if let Some(workspace) = workspace.upgrade() {
2263                                                workspace.update(cx, |workspace, cx| {
2264                                                    if let Some(panel) =
2265                                                        workspace.panel::<AgentPanel>(cx)
2266                                                    {
2267                                                        panel.update(cx, |panel, cx| {
2268                                                            panel.set_selected_agent(
2269                                                                AgentType::TextThread,
2270                                                                cx,
2271                                                            );
2272                                                        });
2273                                                    }
2274                                                });
2275                                            }
2276                                            window.dispatch_action(NewTextThread.boxed_clone(), cx);
2277                                        }
2278                                    }),
2279                            )
2280                            .item(
2281                                ContextMenuEntry::new("New Native Agent Thread")
2282                                    .icon(IconName::ZedAssistant)
2283                                    .icon_color(Color::Muted)
2284                                    .handler({
2285                                        let workspace = workspace.clone();
2286                                        move |window, cx| {
2287                                            if let Some(workspace) = workspace.upgrade() {
2288                                                workspace.update(cx, |workspace, cx| {
2289                                                    if let Some(panel) =
2290                                                        workspace.panel::<AgentPanel>(cx)
2291                                                    {
2292                                                        panel.update(cx, |panel, cx| {
2293                                                            panel.set_selected_agent(
2294                                                                AgentType::NativeAgent,
2295                                                                cx,
2296                                                            );
2297                                                        });
2298                                                    }
2299                                                });
2300                                            }
2301                                            window.dispatch_action(
2302                                                NewExternalAgentThread {
2303                                                    agent: Some(crate::ExternalAgent::NativeAgent),
2304                                                }
2305                                                .boxed_clone(),
2306                                                cx,
2307                                            );
2308                                        }
2309                                    }),
2310                            )
2311                            .separator()
2312                            .header("External Agents")
2313                            .item(
2314                                ContextMenuEntry::new("New Gemini Thread")
2315                                    .icon(IconName::AiGemini)
2316                                    .icon_color(Color::Muted)
2317                                    .handler({
2318                                        let workspace = workspace.clone();
2319                                        move |window, cx| {
2320                                            if let Some(workspace) = workspace.upgrade() {
2321                                                workspace.update(cx, |workspace, cx| {
2322                                                    if let Some(panel) =
2323                                                        workspace.panel::<AgentPanel>(cx)
2324                                                    {
2325                                                        panel.update(cx, |panel, cx| {
2326                                                            panel.set_selected_agent(
2327                                                                AgentType::Gemini,
2328                                                                cx,
2329                                                            );
2330                                                        });
2331                                                    }
2332                                                });
2333                                            }
2334                                            window.dispatch_action(
2335                                                NewExternalAgentThread {
2336                                                    agent: Some(crate::ExternalAgent::Gemini),
2337                                                }
2338                                                .boxed_clone(),
2339                                                cx,
2340                                            );
2341                                        }
2342                                    }),
2343                            )
2344                            .item(
2345                                ContextMenuEntry::new("New Claude Code Thread")
2346                                    .icon(IconName::AiClaude)
2347                                    .icon_color(Color::Muted)
2348                                    .handler({
2349                                        let workspace = workspace.clone();
2350                                        move |window, cx| {
2351                                            if let Some(workspace) = workspace.upgrade() {
2352                                                workspace.update(cx, |workspace, cx| {
2353                                                    if let Some(panel) =
2354                                                        workspace.panel::<AgentPanel>(cx)
2355                                                    {
2356                                                        panel.update(cx, |panel, cx| {
2357                                                            panel.set_selected_agent(
2358                                                                AgentType::ClaudeCode,
2359                                                                cx,
2360                                                            );
2361                                                        });
2362                                                    }
2363                                                });
2364                                            }
2365                                            window.dispatch_action(
2366                                                NewExternalAgentThread {
2367                                                    agent: Some(crate::ExternalAgent::ClaudeCode),
2368                                                }
2369                                                .boxed_clone(),
2370                                                cx,
2371                                            );
2372                                        }
2373                                    }),
2374                            );
2375                        menu
2376                    }))
2377                }
2378            });
2379
2380        h_flex()
2381            .id("agent-panel-toolbar")
2382            .h(Tab::container_height(cx))
2383            .max_w_full()
2384            .flex_none()
2385            .justify_between()
2386            .gap_2()
2387            .bg(cx.theme().colors().tab_bar_background)
2388            .border_b_1()
2389            .border_color(cx.theme().colors().border)
2390            .child(
2391                h_flex()
2392                    .size_full()
2393                    .gap(DynamicSpacing::Base08.rems(cx))
2394                    .child(match &self.active_view {
2395                        ActiveView::History | ActiveView::Configuration => div()
2396                            .pl(DynamicSpacing::Base04.rems(cx))
2397                            .child(self.render_toolbar_back_button(cx))
2398                            .into_any_element(),
2399                        _ => h_flex()
2400                            .h_full()
2401                            .px(DynamicSpacing::Base04.rems(cx))
2402                            .border_r_1()
2403                            .border_color(cx.theme().colors().border)
2404                            .child(
2405                                h_flex()
2406                                    .px_0p5()
2407                                    .gap_1p5()
2408                                    .child(
2409                                        Icon::new(self.selected_agent.icon()).color(Color::Muted),
2410                                    )
2411                                    .child(Label::new(self.selected_agent.label())),
2412                            )
2413                            .into_any_element(),
2414                    })
2415                    .child(self.render_title_view(window, cx)),
2416            )
2417            .child(
2418                h_flex()
2419                    .h_full()
2420                    .gap_2()
2421                    .children(self.render_token_count(cx))
2422                    .child(
2423                        h_flex()
2424                            .h_full()
2425                            .gap(DynamicSpacing::Base02.rems(cx))
2426                            .pl(DynamicSpacing::Base04.rems(cx))
2427                            .pr(DynamicSpacing::Base06.rems(cx))
2428                            .border_l_1()
2429                            .border_color(cx.theme().colors().border)
2430                            .child(new_thread_menu)
2431                            .child(self.render_recent_entries_menu(IconName::HistoryRerun, cx))
2432                            .child(self.render_panel_options_menu(window, cx)),
2433                    ),
2434            )
2435    }
2436
2437    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2438        if cx.has_flag::<feature_flags::AcpFeatureFlag>() {
2439            self.render_toolbar_new(window, cx).into_any_element()
2440        } else {
2441            self.render_toolbar_old(window, cx).into_any_element()
2442        }
2443    }
2444
2445    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2446        match &self.active_view {
2447            ActiveView::Thread {
2448                thread,
2449                message_editor,
2450                ..
2451            } => {
2452                let active_thread = thread.read(cx);
2453                let message_editor = message_editor.read(cx);
2454
2455                let editor_empty = message_editor.is_editor_fully_empty(cx);
2456
2457                if active_thread.is_empty() && editor_empty {
2458                    return None;
2459                }
2460
2461                let thread = active_thread.thread().read(cx);
2462                let is_generating = thread.is_generating();
2463                let conversation_token_usage = thread.total_token_usage()?;
2464
2465                let (total_token_usage, is_estimating) =
2466                    if let Some((editing_message_id, unsent_tokens)) =
2467                        active_thread.editing_message_id()
2468                    {
2469                        let combined = thread
2470                            .token_usage_up_to_message(editing_message_id)
2471                            .add(unsent_tokens);
2472
2473                        (combined, unsent_tokens > 0)
2474                    } else {
2475                        let unsent_tokens =
2476                            message_editor.last_estimated_token_count().unwrap_or(0);
2477                        let combined = conversation_token_usage.add(unsent_tokens);
2478
2479                        (combined, unsent_tokens > 0)
2480                    };
2481
2482                let is_waiting_to_update_token_count =
2483                    message_editor.is_waiting_to_update_token_count();
2484
2485                if total_token_usage.total == 0 {
2486                    return None;
2487                }
2488
2489                let token_color = match total_token_usage.ratio() {
2490                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2491                    TokenUsageRatio::Normal => Color::Muted,
2492                    TokenUsageRatio::Warning => Color::Warning,
2493                    TokenUsageRatio::Exceeded => Color::Error,
2494                };
2495
2496                let token_count = h_flex()
2497                    .id("token-count")
2498                    .flex_shrink_0()
2499                    .gap_0p5()
2500                    .when(!is_generating && is_estimating, |parent| {
2501                        parent
2502                            .child(
2503                                h_flex()
2504                                    .mr_1()
2505                                    .size_2p5()
2506                                    .justify_center()
2507                                    .rounded_full()
2508                                    .bg(cx.theme().colors().text.opacity(0.1))
2509                                    .child(
2510                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2511                                    ),
2512                            )
2513                            .tooltip(move |window, cx| {
2514                                Tooltip::with_meta(
2515                                    "Estimated New Token Count",
2516                                    None,
2517                                    format!(
2518                                        "Current Conversation Tokens: {}",
2519                                        humanize_token_count(conversation_token_usage.total)
2520                                    ),
2521                                    window,
2522                                    cx,
2523                                )
2524                            })
2525                    })
2526                    .child(
2527                        Label::new(humanize_token_count(total_token_usage.total))
2528                            .size(LabelSize::Small)
2529                            .color(token_color)
2530                            .map(|label| {
2531                                if is_generating || is_waiting_to_update_token_count {
2532                                    label
2533                                        .with_animation(
2534                                            "used-tokens-label",
2535                                            Animation::new(Duration::from_secs(2))
2536                                                .repeat()
2537                                                .with_easing(pulsating_between(0.6, 1.)),
2538                                            |label, delta| label.alpha(delta),
2539                                        )
2540                                        .into_any()
2541                                } else {
2542                                    label.into_any_element()
2543                                }
2544                            }),
2545                    )
2546                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2547                    .child(
2548                        Label::new(humanize_token_count(total_token_usage.max))
2549                            .size(LabelSize::Small)
2550                            .color(Color::Muted),
2551                    )
2552                    .into_any();
2553
2554                Some(token_count)
2555            }
2556            ActiveView::TextThread { context_editor, .. } => {
2557                let element = render_remaining_tokens(context_editor, cx)?;
2558
2559                Some(element.into_any_element())
2560            }
2561            ActiveView::ExternalAgentThread { .. }
2562            | ActiveView::History
2563            | ActiveView::Configuration => {
2564                return None;
2565            }
2566        }
2567    }
2568
2569    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2570        if TrialEndUpsell::dismissed() {
2571            return false;
2572        }
2573
2574        match &self.active_view {
2575            ActiveView::Thread { thread, .. } => {
2576                if thread
2577                    .read(cx)
2578                    .thread()
2579                    .read(cx)
2580                    .configured_model()
2581                    .map_or(false, |model| {
2582                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2583                    })
2584                {
2585                    return false;
2586                }
2587            }
2588            ActiveView::TextThread { .. } => {
2589                if LanguageModelRegistry::global(cx)
2590                    .read(cx)
2591                    .default_model()
2592                    .map_or(false, |model| {
2593                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2594                    })
2595                {
2596                    return false;
2597                }
2598            }
2599            ActiveView::ExternalAgentThread { .. }
2600            | ActiveView::History
2601            | ActiveView::Configuration => return false,
2602        }
2603
2604        let plan = self.user_store.read(cx).plan();
2605        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2606
2607        matches!(plan, Some(Plan::ZedFree)) && has_previous_trial
2608    }
2609
2610    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2611        if OnboardingUpsell::dismissed() {
2612            return false;
2613        }
2614
2615        match &self.active_view {
2616            ActiveView::Thread { .. } | ActiveView::TextThread { .. } => {
2617                let history_is_empty = self
2618                    .history_store
2619                    .update(cx, |store, cx| store.recent_entries(1, cx).is_empty());
2620
2621                let has_configured_non_zed_providers = LanguageModelRegistry::read_global(cx)
2622                    .providers()
2623                    .iter()
2624                    .any(|provider| {
2625                        provider.is_authenticated(cx)
2626                            && provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2627                    });
2628
2629                history_is_empty || !has_configured_non_zed_providers
2630            }
2631            ActiveView::ExternalAgentThread { .. }
2632            | ActiveView::History
2633            | ActiveView::Configuration => false,
2634        }
2635    }
2636
2637    fn render_onboarding(
2638        &self,
2639        _window: &mut Window,
2640        cx: &mut Context<Self>,
2641    ) -> Option<impl IntoElement> {
2642        if !self.should_render_onboarding(cx) {
2643            return None;
2644        }
2645
2646        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2647        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2648
2649        Some(
2650            div()
2651                .when(thread_view, |this| {
2652                    this.size_full().bg(cx.theme().colors().panel_background)
2653                })
2654                .when(text_thread_view, |this| {
2655                    this.bg(cx.theme().colors().editor_background)
2656                })
2657                .child(self.onboarding.clone()),
2658        )
2659    }
2660
2661    fn render_backdrop(&self, cx: &mut Context<Self>) -> impl IntoElement {
2662        div()
2663            .size_full()
2664            .absolute()
2665            .inset_0()
2666            .bg(cx.theme().colors().panel_background)
2667            .opacity(0.8)
2668            .block_mouse_except_scroll()
2669    }
2670
2671    fn render_trial_end_upsell(
2672        &self,
2673        _window: &mut Window,
2674        cx: &mut Context<Self>,
2675    ) -> Option<impl IntoElement> {
2676        if !self.should_render_trial_end_upsell(cx) {
2677            return None;
2678        }
2679
2680        Some(
2681            v_flex()
2682                .absolute()
2683                .inset_0()
2684                .size_full()
2685                .bg(cx.theme().colors().panel_background)
2686                .opacity(0.85)
2687                .block_mouse_except_scroll()
2688                .child(EndTrialUpsell::new(Arc::new({
2689                    let this = cx.entity();
2690                    move |_, cx| {
2691                        this.update(cx, |_this, cx| {
2692                            TrialEndUpsell::set_dismissed(true, cx);
2693                            cx.notify();
2694                        });
2695                    }
2696                }))),
2697        )
2698    }
2699
2700    fn render_empty_state_section_header(
2701        &self,
2702        label: impl Into<SharedString>,
2703        action_slot: Option<AnyElement>,
2704        cx: &mut Context<Self>,
2705    ) -> impl IntoElement {
2706        h_flex()
2707            .mt_2()
2708            .pl_1p5()
2709            .pb_1()
2710            .w_full()
2711            .justify_between()
2712            .border_b_1()
2713            .border_color(cx.theme().colors().border_variant)
2714            .child(
2715                Label::new(label.into())
2716                    .size(LabelSize::Small)
2717                    .color(Color::Muted),
2718            )
2719            .children(action_slot)
2720    }
2721
2722    fn render_thread_empty_state(
2723        &self,
2724        window: &mut Window,
2725        cx: &mut Context<Self>,
2726    ) -> impl IntoElement {
2727        let recent_history = self
2728            .history_store
2729            .update(cx, |this, cx| this.recent_entries(6, cx));
2730
2731        let model_registry = LanguageModelRegistry::read_global(cx);
2732
2733        let configuration_error =
2734            model_registry.configuration_error(model_registry.default_model(), cx);
2735
2736        let no_error = configuration_error.is_none();
2737        let focus_handle = self.focus_handle(cx);
2738
2739        v_flex()
2740            .size_full()
2741            .bg(cx.theme().colors().panel_background)
2742            .when(recent_history.is_empty(), |this| {
2743                this.child(
2744                    v_flex()
2745                        .size_full()
2746                        .mx_auto()
2747                        .justify_center()
2748                        .items_center()
2749                        .gap_1()
2750                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2751                        .when(no_error, |parent| {
2752                            parent
2753                                .child(h_flex().child(
2754                                    Label::new("Ask and build anything.").color(Color::Muted),
2755                                ))
2756                                .child(
2757                                    v_flex()
2758                                        .mt_2()
2759                                        .gap_1()
2760                                        .max_w_48()
2761                                        .child(
2762                                            Button::new("context", "Add Context")
2763                                                .label_size(LabelSize::Small)
2764                                                .icon(IconName::FileCode)
2765                                                .icon_position(IconPosition::Start)
2766                                                .icon_size(IconSize::Small)
2767                                                .icon_color(Color::Muted)
2768                                                .full_width()
2769                                                .key_binding(KeyBinding::for_action_in(
2770                                                    &ToggleContextPicker,
2771                                                    &focus_handle,
2772                                                    window,
2773                                                    cx,
2774                                                ))
2775                                                .on_click(|_event, window, cx| {
2776                                                    window.dispatch_action(
2777                                                        ToggleContextPicker.boxed_clone(),
2778                                                        cx,
2779                                                    )
2780                                                }),
2781                                        )
2782                                        .child(
2783                                            Button::new("mode", "Switch Model")
2784                                                .label_size(LabelSize::Small)
2785                                                .icon(IconName::DatabaseZap)
2786                                                .icon_position(IconPosition::Start)
2787                                                .icon_size(IconSize::Small)
2788                                                .icon_color(Color::Muted)
2789                                                .full_width()
2790                                                .key_binding(KeyBinding::for_action_in(
2791                                                    &ToggleModelSelector,
2792                                                    &focus_handle,
2793                                                    window,
2794                                                    cx,
2795                                                ))
2796                                                .on_click(|_event, window, cx| {
2797                                                    window.dispatch_action(
2798                                                        ToggleModelSelector.boxed_clone(),
2799                                                        cx,
2800                                                    )
2801                                                }),
2802                                        )
2803                                        .child(
2804                                            Button::new("settings", "View Settings")
2805                                                .label_size(LabelSize::Small)
2806                                                .icon(IconName::Settings)
2807                                                .icon_position(IconPosition::Start)
2808                                                .icon_size(IconSize::Small)
2809                                                .icon_color(Color::Muted)
2810                                                .full_width()
2811                                                .key_binding(KeyBinding::for_action_in(
2812                                                    &OpenSettings,
2813                                                    &focus_handle,
2814                                                    window,
2815                                                    cx,
2816                                                ))
2817                                                .on_click(|_event, window, cx| {
2818                                                    window.dispatch_action(
2819                                                        OpenSettings.boxed_clone(),
2820                                                        cx,
2821                                                    )
2822                                                }),
2823                                        ),
2824                                )
2825                        })
2826                        .when_some(configuration_error.as_ref(), |this, err| {
2827                            this.child(self.render_configuration_error(
2828                                err,
2829                                &focus_handle,
2830                                window,
2831                                cx,
2832                            ))
2833                        }),
2834                )
2835            })
2836            .when(!recent_history.is_empty(), |parent| {
2837                let focus_handle = focus_handle.clone();
2838                parent
2839                    .overflow_hidden()
2840                    .p_1p5()
2841                    .justify_end()
2842                    .gap_1()
2843                    .child(
2844                        self.render_empty_state_section_header(
2845                            "Recent",
2846                            Some(
2847                                Button::new("view-history", "View All")
2848                                    .style(ButtonStyle::Subtle)
2849                                    .label_size(LabelSize::Small)
2850                                    .key_binding(
2851                                        KeyBinding::for_action_in(
2852                                            &OpenHistory,
2853                                            &self.focus_handle(cx),
2854                                            window,
2855                                            cx,
2856                                        )
2857                                        .map(|kb| kb.size(rems_from_px(12.))),
2858                                    )
2859                                    .on_click(move |_event, window, cx| {
2860                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2861                                    })
2862                                    .into_any_element(),
2863                            ),
2864                            cx,
2865                        ),
2866                    )
2867                    .child(
2868                        v_flex()
2869                            .gap_1()
2870                            .children(recent_history.into_iter().enumerate().map(
2871                                |(index, entry)| {
2872                                    // TODO: Add keyboard navigation.
2873                                    let is_hovered =
2874                                        self.hovered_recent_history_item == Some(index);
2875                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2876                                        .hovered(is_hovered)
2877                                        .on_hover(cx.listener(
2878                                            move |this, is_hovered, _window, cx| {
2879                                                if *is_hovered {
2880                                                    this.hovered_recent_history_item = Some(index);
2881                                                } else if this.hovered_recent_history_item
2882                                                    == Some(index)
2883                                                {
2884                                                    this.hovered_recent_history_item = None;
2885                                                }
2886                                                cx.notify();
2887                                            },
2888                                        ))
2889                                        .into_any_element()
2890                                },
2891                            )),
2892                    )
2893                    .when_some(configuration_error.as_ref(), |this, err| {
2894                        this.child(self.render_configuration_error(err, &focus_handle, window, cx))
2895                    })
2896            })
2897    }
2898
2899    fn render_configuration_error(
2900        &self,
2901        configuration_error: &ConfigurationError,
2902        focus_handle: &FocusHandle,
2903        window: &mut Window,
2904        cx: &mut App,
2905    ) -> impl IntoElement {
2906        match configuration_error {
2907            ConfigurationError::ModelNotFound
2908            | ConfigurationError::ProviderNotAuthenticated(_)
2909            | ConfigurationError::NoProvider => Banner::new()
2910                .severity(ui::Severity::Warning)
2911                .child(Label::new(configuration_error.to_string()))
2912                .action_slot(
2913                    Button::new("settings", "Configure Provider")
2914                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2915                        .label_size(LabelSize::Small)
2916                        .key_binding(
2917                            KeyBinding::for_action_in(&OpenSettings, &focus_handle, window, cx)
2918                                .map(|kb| kb.size(rems_from_px(12.))),
2919                        )
2920                        .on_click(|_event, window, cx| {
2921                            window.dispatch_action(OpenSettings.boxed_clone(), cx)
2922                        }),
2923                ),
2924            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
2925                Banner::new().severity(ui::Severity::Warning).child(
2926                    h_flex().w_full().children(
2927                        provider.render_accept_terms(
2928                            LanguageModelProviderTosView::ThreadEmptyState,
2929                            cx,
2930                        ),
2931                    ),
2932                )
2933            }
2934        }
2935    }
2936
2937    fn render_tool_use_limit_reached(
2938        &self,
2939        window: &mut Window,
2940        cx: &mut Context<Self>,
2941    ) -> Option<AnyElement> {
2942        let active_thread = match &self.active_view {
2943            ActiveView::Thread { thread, .. } => thread,
2944            ActiveView::ExternalAgentThread { .. } => {
2945                return None;
2946            }
2947            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2948                return None;
2949            }
2950        };
2951
2952        let thread = active_thread.read(cx).thread().read(cx);
2953
2954        let tool_use_limit_reached = thread.tool_use_limit_reached();
2955        if !tool_use_limit_reached {
2956            return None;
2957        }
2958
2959        let model = thread.configured_model()?.model;
2960
2961        let focus_handle = self.focus_handle(cx);
2962
2963        let banner = Banner::new()
2964            .severity(ui::Severity::Info)
2965            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2966            .action_slot(
2967                h_flex()
2968                    .gap_1()
2969                    .child(
2970                        Button::new("continue-conversation", "Continue")
2971                            .layer(ElevationIndex::ModalSurface)
2972                            .label_size(LabelSize::Small)
2973                            .key_binding(
2974                                KeyBinding::for_action_in(
2975                                    &ContinueThread,
2976                                    &focus_handle,
2977                                    window,
2978                                    cx,
2979                                )
2980                                .map(|kb| kb.size(rems_from_px(10.))),
2981                            )
2982                            .on_click(cx.listener(|this, _, window, cx| {
2983                                this.continue_conversation(window, cx);
2984                            })),
2985                    )
2986                    .when(model.supports_burn_mode(), |this| {
2987                        this.child(
2988                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2989                                .style(ButtonStyle::Filled)
2990                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2991                                .layer(ElevationIndex::ModalSurface)
2992                                .label_size(LabelSize::Small)
2993                                .key_binding(
2994                                    KeyBinding::for_action_in(
2995                                        &ContinueWithBurnMode,
2996                                        &focus_handle,
2997                                        window,
2998                                        cx,
2999                                    )
3000                                    .map(|kb| kb.size(rems_from_px(10.))),
3001                                )
3002                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
3003                                .on_click({
3004                                    let active_thread = active_thread.clone();
3005                                    cx.listener(move |this, _, window, cx| {
3006                                        active_thread.update(cx, |active_thread, cx| {
3007                                            active_thread.thread().update(cx, |thread, _cx| {
3008                                                thread.set_completion_mode(CompletionMode::Burn);
3009                                            });
3010                                        });
3011                                        this.continue_conversation(window, cx);
3012                                    })
3013                                }),
3014                        )
3015                    }),
3016            );
3017
3018        Some(div().px_2().pb_2().child(banner).into_any_element())
3019    }
3020
3021    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
3022        let message = message.into();
3023
3024        IconButton::new("copy", IconName::Copy)
3025            .icon_size(IconSize::Small)
3026            .icon_color(Color::Muted)
3027            .tooltip(Tooltip::text("Copy Error Message"))
3028            .on_click(move |_, _, cx| {
3029                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
3030            })
3031    }
3032
3033    fn dismiss_error_button(
3034        &self,
3035        thread: &Entity<ActiveThread>,
3036        cx: &mut Context<Self>,
3037    ) -> impl IntoElement {
3038        IconButton::new("dismiss", IconName::Close)
3039            .icon_size(IconSize::Small)
3040            .icon_color(Color::Muted)
3041            .tooltip(Tooltip::text("Dismiss Error"))
3042            .on_click(cx.listener({
3043                let thread = thread.clone();
3044                move |_, _, _, cx| {
3045                    thread.update(cx, |this, _cx| {
3046                        this.clear_last_error();
3047                    });
3048
3049                    cx.notify();
3050                }
3051            }))
3052    }
3053
3054    fn upgrade_button(
3055        &self,
3056        thread: &Entity<ActiveThread>,
3057        cx: &mut Context<Self>,
3058    ) -> impl IntoElement {
3059        Button::new("upgrade", "Upgrade")
3060            .label_size(LabelSize::Small)
3061            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3062            .on_click(cx.listener({
3063                let thread = thread.clone();
3064                move |_, _, _, cx| {
3065                    thread.update(cx, |this, _cx| {
3066                        this.clear_last_error();
3067                    });
3068
3069                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
3070                    cx.notify();
3071                }
3072            }))
3073    }
3074
3075    fn error_callout_bg(&self, cx: &Context<Self>) -> Hsla {
3076        cx.theme().status().error.opacity(0.08)
3077    }
3078
3079    fn render_payment_required_error(
3080        &self,
3081        thread: &Entity<ActiveThread>,
3082        cx: &mut Context<Self>,
3083    ) -> AnyElement {
3084        const ERROR_MESSAGE: &str =
3085            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
3086
3087        let icon = Icon::new(IconName::XCircle)
3088            .size(IconSize::Small)
3089            .color(Color::Error);
3090
3091        div()
3092            .border_t_1()
3093            .border_color(cx.theme().colors().border)
3094            .child(
3095                Callout::new()
3096                    .icon(icon)
3097                    .title("Free Usage Exceeded")
3098                    .description(ERROR_MESSAGE)
3099                    .tertiary_action(self.upgrade_button(thread, cx))
3100                    .secondary_action(self.create_copy_button(ERROR_MESSAGE))
3101                    .primary_action(self.dismiss_error_button(thread, cx))
3102                    .bg_color(self.error_callout_bg(cx)),
3103            )
3104            .into_any_element()
3105    }
3106
3107    fn render_model_request_limit_reached_error(
3108        &self,
3109        plan: Plan,
3110        thread: &Entity<ActiveThread>,
3111        cx: &mut Context<Self>,
3112    ) -> AnyElement {
3113        let error_message = match plan {
3114            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
3115            Plan::ZedProTrial | Plan::ZedFree => "Upgrade to Zed Pro for more prompts.",
3116        };
3117
3118        let icon = Icon::new(IconName::XCircle)
3119            .size(IconSize::Small)
3120            .color(Color::Error);
3121
3122        div()
3123            .border_t_1()
3124            .border_color(cx.theme().colors().border)
3125            .child(
3126                Callout::new()
3127                    .icon(icon)
3128                    .title("Model Prompt Limit Reached")
3129                    .description(error_message)
3130                    .tertiary_action(self.upgrade_button(thread, cx))
3131                    .secondary_action(self.create_copy_button(error_message))
3132                    .primary_action(self.dismiss_error_button(thread, cx))
3133                    .bg_color(self.error_callout_bg(cx)),
3134            )
3135            .into_any_element()
3136    }
3137
3138    fn render_error_message(
3139        &self,
3140        header: SharedString,
3141        message: SharedString,
3142        thread: &Entity<ActiveThread>,
3143        cx: &mut Context<Self>,
3144    ) -> AnyElement {
3145        let message_with_header = format!("{}\n{}", header, message);
3146
3147        let icon = Icon::new(IconName::XCircle)
3148            .size(IconSize::Small)
3149            .color(Color::Error);
3150
3151        let retry_button = Button::new("retry", "Retry")
3152            .icon(IconName::RotateCw)
3153            .icon_position(IconPosition::Start)
3154            .icon_size(IconSize::Small)
3155            .label_size(LabelSize::Small)
3156            .on_click({
3157                let thread = thread.clone();
3158                move |_, window, cx| {
3159                    thread.update(cx, |thread, cx| {
3160                        thread.clear_last_error();
3161                        thread.thread().update(cx, |thread, cx| {
3162                            thread.retry_last_completion(Some(window.window_handle()), cx);
3163                        });
3164                    });
3165                }
3166            });
3167
3168        div()
3169            .border_t_1()
3170            .border_color(cx.theme().colors().border)
3171            .child(
3172                Callout::new()
3173                    .icon(icon)
3174                    .title(header)
3175                    .description(message.clone())
3176                    .primary_action(retry_button)
3177                    .secondary_action(self.dismiss_error_button(thread, cx))
3178                    .tertiary_action(self.create_copy_button(message_with_header))
3179                    .bg_color(self.error_callout_bg(cx)),
3180            )
3181            .into_any_element()
3182    }
3183
3184    fn render_retryable_error(
3185        &self,
3186        message: SharedString,
3187        can_enable_burn_mode: bool,
3188        thread: &Entity<ActiveThread>,
3189        cx: &mut Context<Self>,
3190    ) -> AnyElement {
3191        let icon = Icon::new(IconName::XCircle)
3192            .size(IconSize::Small)
3193            .color(Color::Error);
3194
3195        let retry_button = Button::new("retry", "Retry")
3196            .icon(IconName::RotateCw)
3197            .icon_position(IconPosition::Start)
3198            .icon_size(IconSize::Small)
3199            .label_size(LabelSize::Small)
3200            .on_click({
3201                let thread = thread.clone();
3202                move |_, window, cx| {
3203                    thread.update(cx, |thread, cx| {
3204                        thread.clear_last_error();
3205                        thread.thread().update(cx, |thread, cx| {
3206                            thread.retry_last_completion(Some(window.window_handle()), cx);
3207                        });
3208                    });
3209                }
3210            });
3211
3212        let mut callout = Callout::new()
3213            .icon(icon)
3214            .title("Error")
3215            .description(message.clone())
3216            .bg_color(self.error_callout_bg(cx))
3217            .primary_action(retry_button);
3218
3219        if can_enable_burn_mode {
3220            let burn_mode_button = Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
3221                .icon(IconName::ZedBurnMode)
3222                .icon_position(IconPosition::Start)
3223                .icon_size(IconSize::Small)
3224                .label_size(LabelSize::Small)
3225                .on_click({
3226                    let thread = thread.clone();
3227                    move |_, window, cx| {
3228                        thread.update(cx, |thread, cx| {
3229                            thread.clear_last_error();
3230                            thread.thread().update(cx, |thread, cx| {
3231                                thread.enable_burn_mode_and_retry(Some(window.window_handle()), cx);
3232                            });
3233                        });
3234                    }
3235                });
3236            callout = callout.secondary_action(burn_mode_button);
3237        }
3238
3239        div()
3240            .border_t_1()
3241            .border_color(cx.theme().colors().border)
3242            .child(callout)
3243            .into_any_element()
3244    }
3245
3246    fn render_prompt_editor(
3247        &self,
3248        context_editor: &Entity<TextThreadEditor>,
3249        buffer_search_bar: &Entity<BufferSearchBar>,
3250        window: &mut Window,
3251        cx: &mut Context<Self>,
3252    ) -> Div {
3253        let mut registrar = buffer_search::DivRegistrar::new(
3254            |this, _, _cx| match &this.active_view {
3255                ActiveView::TextThread {
3256                    buffer_search_bar, ..
3257                } => Some(buffer_search_bar.clone()),
3258                _ => None,
3259            },
3260            cx,
3261        );
3262        BufferSearchBar::register(&mut registrar);
3263        registrar
3264            .into_div()
3265            .size_full()
3266            .relative()
3267            .map(|parent| {
3268                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3269                    if buffer_search_bar.is_dismissed() {
3270                        return parent;
3271                    }
3272                    parent.child(
3273                        div()
3274                            .p(DynamicSpacing::Base08.rems(cx))
3275                            .border_b_1()
3276                            .border_color(cx.theme().colors().border_variant)
3277                            .bg(cx.theme().colors().editor_background)
3278                            .child(buffer_search_bar.render(window, cx)),
3279                    )
3280                })
3281            })
3282            .child(context_editor.clone())
3283            .child(self.render_drag_target(cx))
3284    }
3285
3286    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3287        let is_local = self.project.read(cx).is_local();
3288        div()
3289            .invisible()
3290            .absolute()
3291            .top_0()
3292            .right_0()
3293            .bottom_0()
3294            .left_0()
3295            .bg(cx.theme().colors().drop_target_background)
3296            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3297            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3298            .when(is_local, |this| {
3299                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3300            })
3301            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3302                let item = tab.pane.read(cx).item_for_index(tab.ix);
3303                let project_paths = item
3304                    .and_then(|item| item.project_path(cx))
3305                    .into_iter()
3306                    .collect::<Vec<_>>();
3307                this.handle_drop(project_paths, vec![], window, cx);
3308            }))
3309            .on_drop(
3310                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3311                    let project_paths = selection
3312                        .items()
3313                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3314                        .collect::<Vec<_>>();
3315                    this.handle_drop(project_paths, vec![], window, cx);
3316                }),
3317            )
3318            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3319                let tasks = paths
3320                    .paths()
3321                    .into_iter()
3322                    .map(|path| {
3323                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
3324                    })
3325                    .collect::<Vec<_>>();
3326                cx.spawn_in(window, async move |this, cx| {
3327                    let mut paths = vec![];
3328                    let mut added_worktrees = vec![];
3329                    let opened_paths = futures::future::join_all(tasks).await;
3330                    for entry in opened_paths {
3331                        if let Some((worktree, project_path)) = entry.log_err() {
3332                            added_worktrees.push(worktree);
3333                            paths.push(project_path);
3334                        }
3335                    }
3336                    this.update_in(cx, |this, window, cx| {
3337                        this.handle_drop(paths, added_worktrees, window, cx);
3338                    })
3339                    .ok();
3340                })
3341                .detach();
3342            }))
3343    }
3344
3345    fn handle_drop(
3346        &mut self,
3347        paths: Vec<ProjectPath>,
3348        added_worktrees: Vec<Entity<Worktree>>,
3349        window: &mut Window,
3350        cx: &mut Context<Self>,
3351    ) {
3352        match &self.active_view {
3353            ActiveView::Thread { thread, .. } => {
3354                let context_store = thread.read(cx).context_store().clone();
3355                context_store.update(cx, move |context_store, cx| {
3356                    let mut tasks = Vec::new();
3357                    for project_path in &paths {
3358                        tasks.push(context_store.add_file_from_path(
3359                            project_path.clone(),
3360                            false,
3361                            cx,
3362                        ));
3363                    }
3364                    cx.background_spawn(async move {
3365                        futures::future::join_all(tasks).await;
3366                        // Need to hold onto the worktrees until they have already been used when
3367                        // opening the buffers.
3368                        drop(added_worktrees);
3369                    })
3370                    .detach();
3371                });
3372            }
3373            ActiveView::ExternalAgentThread { thread_view } => {
3374                thread_view.update(cx, |thread_view, cx| {
3375                    thread_view.insert_dragged_files(paths, added_worktrees, window, cx);
3376                });
3377            }
3378            ActiveView::TextThread { context_editor, .. } => {
3379                context_editor.update(cx, |context_editor, cx| {
3380                    TextThreadEditor::insert_dragged_files(
3381                        context_editor,
3382                        paths,
3383                        added_worktrees,
3384                        window,
3385                        cx,
3386                    );
3387                });
3388            }
3389            ActiveView::History | ActiveView::Configuration => {}
3390        }
3391    }
3392
3393    fn key_context(&self) -> KeyContext {
3394        let mut key_context = KeyContext::new_with_defaults();
3395        key_context.add("AgentPanel");
3396        match &self.active_view {
3397            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3398            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3399            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3400        }
3401        key_context
3402    }
3403}
3404
3405impl Render for AgentPanel {
3406    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3407        // WARNING: Changes to this element hierarchy can have
3408        // non-obvious implications to the layout of children.
3409        //
3410        // If you need to change it, please confirm:
3411        // - The message editor expands (cmd-option-esc) correctly
3412        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3413        // - Font size works as expected and can be changed with cmd-+/cmd-
3414        // - Scrolling in all views works as expected
3415        // - Files can be dropped into the panel
3416        let content = v_flex()
3417            .relative()
3418            .size_full()
3419            .justify_between()
3420            .key_context(self.key_context())
3421            .on_action(cx.listener(Self::cancel))
3422            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3423                this.new_thread(action, window, cx);
3424            }))
3425            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3426                this.open_history(window, cx);
3427            }))
3428            .on_action(cx.listener(|this, _: &OpenSettings, window, cx| {
3429                this.open_configuration(window, cx);
3430            }))
3431            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3432            .on_action(cx.listener(Self::deploy_rules_library))
3433            .on_action(cx.listener(Self::open_agent_diff))
3434            .on_action(cx.listener(Self::go_back))
3435            .on_action(cx.listener(Self::toggle_navigation_menu))
3436            .on_action(cx.listener(Self::toggle_options_menu))
3437            .on_action(cx.listener(Self::increase_font_size))
3438            .on_action(cx.listener(Self::decrease_font_size))
3439            .on_action(cx.listener(Self::reset_font_size))
3440            .on_action(cx.listener(Self::toggle_zoom))
3441            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3442                this.continue_conversation(window, cx);
3443            }))
3444            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3445                match &this.active_view {
3446                    ActiveView::Thread { thread, .. } => {
3447                        thread.update(cx, |active_thread, cx| {
3448                            active_thread.thread().update(cx, |thread, _cx| {
3449                                thread.set_completion_mode(CompletionMode::Burn);
3450                            });
3451                        });
3452                        this.continue_conversation(window, cx);
3453                    }
3454                    ActiveView::ExternalAgentThread { .. } => {}
3455                    ActiveView::TextThread { .. }
3456                    | ActiveView::History
3457                    | ActiveView::Configuration => {}
3458                }
3459            }))
3460            .on_action(cx.listener(Self::toggle_burn_mode))
3461            .child(self.render_toolbar(window, cx))
3462            .children(self.render_onboarding(window, cx))
3463            .map(|parent| match &self.active_view {
3464                ActiveView::Thread {
3465                    thread,
3466                    message_editor,
3467                    ..
3468                } => parent
3469                    .child(
3470                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3471                            self.render_thread_empty_state(window, cx)
3472                                .into_any_element()
3473                        } else {
3474                            thread.clone().into_any_element()
3475                        },
3476                    )
3477                    .children(self.render_tool_use_limit_reached(window, cx))
3478                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3479                        this.child(
3480                            div()
3481                                .child(match last_error {
3482                                    ThreadError::PaymentRequired => {
3483                                        self.render_payment_required_error(thread, cx)
3484                                    }
3485                                    ThreadError::ModelRequestLimitReached { plan } => self
3486                                        .render_model_request_limit_reached_error(plan, thread, cx),
3487                                    ThreadError::Message { header, message } => {
3488                                        self.render_error_message(header, message, thread, cx)
3489                                    }
3490                                    ThreadError::RetryableError {
3491                                        message,
3492                                        can_enable_burn_mode,
3493                                    } => self.render_retryable_error(
3494                                        message,
3495                                        can_enable_burn_mode,
3496                                        thread,
3497                                        cx,
3498                                    ),
3499                                })
3500                                .into_any(),
3501                        )
3502                    })
3503                    .child(h_flex().relative().child(message_editor.clone()).when(
3504                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3505                        |this| this.child(self.render_backdrop(cx)),
3506                    ))
3507                    .child(self.render_drag_target(cx)),
3508                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3509                    .child(thread_view.clone())
3510                    .child(self.render_drag_target(cx)),
3511                ActiveView::History => parent.child(self.history.clone()),
3512                ActiveView::TextThread {
3513                    context_editor,
3514                    buffer_search_bar,
3515                    ..
3516                } => {
3517                    let model_registry = LanguageModelRegistry::read_global(cx);
3518                    let configuration_error =
3519                        model_registry.configuration_error(model_registry.default_model(), cx);
3520                    parent
3521                        .map(|this| {
3522                            if !self.should_render_onboarding(cx)
3523                                && let Some(err) = configuration_error.as_ref()
3524                            {
3525                                this.child(
3526                                    div().bg(cx.theme().colors().editor_background).p_2().child(
3527                                        self.render_configuration_error(
3528                                            err,
3529                                            &self.focus_handle(cx),
3530                                            window,
3531                                            cx,
3532                                        ),
3533                                    ),
3534                                )
3535                            } else {
3536                                this
3537                            }
3538                        })
3539                        .child(self.render_prompt_editor(
3540                            context_editor,
3541                            buffer_search_bar,
3542                            window,
3543                            cx,
3544                        ))
3545                }
3546                ActiveView::Configuration => parent.children(self.configuration.clone()),
3547            })
3548            .children(self.render_trial_end_upsell(window, cx));
3549
3550        match self.active_view.which_font_size_used() {
3551            WhichFontSize::AgentFont => {
3552                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3553                    .size_full()
3554                    .child(content)
3555                    .into_any()
3556            }
3557            _ => content.into_any(),
3558        }
3559    }
3560}
3561
3562struct PromptLibraryInlineAssist {
3563    workspace: WeakEntity<Workspace>,
3564}
3565
3566impl PromptLibraryInlineAssist {
3567    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3568        Self { workspace }
3569    }
3570}
3571
3572impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3573    fn assist(
3574        &self,
3575        prompt_editor: &Entity<Editor>,
3576        initial_prompt: Option<String>,
3577        window: &mut Window,
3578        cx: &mut Context<RulesLibrary>,
3579    ) {
3580        InlineAssistant::update_global(cx, |assistant, cx| {
3581            let Some(project) = self
3582                .workspace
3583                .upgrade()
3584                .map(|workspace| workspace.read(cx).project().downgrade())
3585            else {
3586                return;
3587            };
3588            let prompt_store = None;
3589            let thread_store = None;
3590            let text_thread_store = None;
3591            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3592            assistant.assist(
3593                &prompt_editor,
3594                self.workspace.clone(),
3595                context_store,
3596                project,
3597                prompt_store,
3598                thread_store,
3599                text_thread_store,
3600                initial_prompt,
3601                window,
3602                cx,
3603            )
3604        })
3605    }
3606
3607    fn focus_agent_panel(
3608        &self,
3609        workspace: &mut Workspace,
3610        window: &mut Window,
3611        cx: &mut Context<Workspace>,
3612    ) -> bool {
3613        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3614    }
3615}
3616
3617pub struct ConcreteAssistantPanelDelegate;
3618
3619impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3620    fn active_context_editor(
3621        &self,
3622        workspace: &mut Workspace,
3623        _window: &mut Window,
3624        cx: &mut Context<Workspace>,
3625    ) -> Option<Entity<TextThreadEditor>> {
3626        let panel = workspace.panel::<AgentPanel>(cx)?;
3627        panel.read(cx).active_context_editor()
3628    }
3629
3630    fn open_saved_context(
3631        &self,
3632        workspace: &mut Workspace,
3633        path: Arc<Path>,
3634        window: &mut Window,
3635        cx: &mut Context<Workspace>,
3636    ) -> Task<Result<()>> {
3637        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3638            return Task::ready(Err(anyhow!("Agent panel not found")));
3639        };
3640
3641        panel.update(cx, |panel, cx| {
3642            panel.open_saved_prompt_editor(path, window, cx)
3643        })
3644    }
3645
3646    fn open_remote_context(
3647        &self,
3648        _workspace: &mut Workspace,
3649        _context_id: assistant_context::ContextId,
3650        _window: &mut Window,
3651        _cx: &mut Context<Workspace>,
3652    ) -> Task<Result<Entity<TextThreadEditor>>> {
3653        Task::ready(Err(anyhow!("opening remote context not implemented")))
3654    }
3655
3656    fn quote_selection(
3657        &self,
3658        workspace: &mut Workspace,
3659        selection_ranges: Vec<Range<Anchor>>,
3660        buffer: Entity<MultiBuffer>,
3661        window: &mut Window,
3662        cx: &mut Context<Workspace>,
3663    ) {
3664        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3665            return;
3666        };
3667
3668        if !panel.focus_handle(cx).contains_focused(window, cx) {
3669            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3670        }
3671
3672        panel.update(cx, |_, cx| {
3673            // Wait to create a new context until the workspace is no longer
3674            // being updated.
3675            cx.defer_in(window, move |panel, window, cx| {
3676                if let Some(message_editor) = panel.active_message_editor() {
3677                    message_editor.update(cx, |message_editor, cx| {
3678                        message_editor.context_store().update(cx, |store, cx| {
3679                            let buffer = buffer.read(cx);
3680                            let selection_ranges = selection_ranges
3681                                .into_iter()
3682                                .flat_map(|range| {
3683                                    let (start_buffer, start) =
3684                                        buffer.text_anchor_for_position(range.start, cx)?;
3685                                    let (end_buffer, end) =
3686                                        buffer.text_anchor_for_position(range.end, cx)?;
3687                                    if start_buffer != end_buffer {
3688                                        return None;
3689                                    }
3690                                    Some((start_buffer, start..end))
3691                                })
3692                                .collect::<Vec<_>>();
3693
3694                            for (buffer, range) in selection_ranges {
3695                                store.add_selection(buffer, range, cx);
3696                            }
3697                        })
3698                    })
3699                } else if let Some(context_editor) = panel.active_context_editor() {
3700                    let snapshot = buffer.read(cx).snapshot(cx);
3701                    let selection_ranges = selection_ranges
3702                        .into_iter()
3703                        .map(|range| range.to_point(&snapshot))
3704                        .collect::<Vec<_>>();
3705
3706                    context_editor.update(cx, |context_editor, cx| {
3707                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3708                    });
3709                }
3710            });
3711        });
3712    }
3713}
3714
3715struct OnboardingUpsell;
3716
3717impl Dismissable for OnboardingUpsell {
3718    const KEY: &'static str = "dismissed-trial-upsell";
3719}
3720
3721struct TrialEndUpsell;
3722
3723impl Dismissable for TrialEndUpsell {
3724    const KEY: &'static str = "dismissed-trial-end-upsell";
3725}