agent_panel.rs

   1use std::ops::{Not, Range};
   2use std::path::Path;
   3use std::rc::Rc;
   4use std::sync::Arc;
   5use std::time::Duration;
   6
   7use agent2::{DbThreadMetadata, HistoryEntry};
   8use db::kvp::{Dismissable, KEY_VALUE_STORE};
   9use serde::{Deserialize, Serialize};
  10
  11use crate::acp::{AcpThreadHistory, ThreadHistoryEvent};
  12use crate::agent_diff::AgentDiffThread;
  13use crate::{
  14    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  15    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  16    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  17    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu,
  18    ToggleNewThreadMenu, ToggleOptionsMenu,
  19    acp::AcpThreadView,
  20    active_thread::{self, ActiveThread, ActiveThreadEvent},
  21    agent_configuration::{AgentConfiguration, AssistantConfigurationEvent},
  22    agent_diff::AgentDiff,
  23    message_editor::{MessageEditor, MessageEditorEvent},
  24    slash_command::SlashCommandCompletionProvider,
  25    text_thread_editor::{
  26        AgentPanelDelegate, TextThreadEditor, humanize_token_count, make_lsp_adapter_delegate,
  27        render_remaining_tokens,
  28    },
  29    thread_history::{HistoryEntryElement, ThreadHistory},
  30    ui::{AgentOnboardingModal, EndTrialUpsell},
  31};
  32use crate::{ExternalAgent, NewExternalAgentThread};
  33use agent::{
  34    Thread, ThreadError, ThreadEvent, ThreadId, ThreadSummary, TokenUsageRatio,
  35    context_store::ContextStore,
  36    history_store::{HistoryEntryId, HistoryStore},
  37    thread_store::{TextThreadStore, ThreadStore},
  38};
  39use agent_settings::{AgentDockPosition, AgentSettings, CompletionMode, DefaultView};
  40use ai_onboarding::AgentPanelOnboarding;
  41use anyhow::{Result, anyhow};
  42use assistant_context::{AssistantContext, ContextEvent, ContextSummary};
  43use assistant_slash_command::SlashCommandWorkingSet;
  44use assistant_tool::ToolWorkingSet;
  45use client::{UserStore, zed_urls};
  46use cloud_llm_client::{CompletionIntent, Plan, UsageLimit};
  47use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
  48use feature_flags::{self, AcpFeatureFlag, ClaudeCodeFeatureFlag, FeatureFlagAppExt};
  49use fs::Fs;
  50use gpui::{
  51    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
  52    Corner, DismissEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable, KeyContext,
  53    Pixels, Subscription, Task, UpdateGlobal, WeakEntity, prelude::*, pulsating_between,
  54};
  55use language::LanguageRegistry;
  56use language_model::{
  57    ConfigurationError, ConfiguredModel, LanguageModelProviderTosView, LanguageModelRegistry,
  58};
  59use project::{DisableAiSettings, Project, ProjectPath, Worktree};
  60use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
  61use rules_library::{RulesLibrary, open_rules_library};
  62use search::{BufferSearchBar, buffer_search};
  63use settings::{Settings, update_settings_file};
  64use theme::ThemeSettings;
  65use time::UtcOffset;
  66use ui::utils::WithRemSize;
  67use ui::{
  68    Banner, Callout, ContextMenu, ContextMenuEntry, Divider, ElevationIndex, KeyBinding,
  69    PopoverMenu, PopoverMenuHandle, ProgressBar, Tab, Tooltip, prelude::*,
  70};
  71use util::ResultExt as _;
  72use workspace::{
  73    CollaboratorId, DraggedSelection, DraggedTab, ToggleZoom, ToolbarItemView, Workspace,
  74    dock::{DockPosition, Panel, PanelEvent},
  75};
  76use zed_actions::{
  77    DecreaseBufferFontSize, IncreaseBufferFontSize, ResetBufferFontSize,
  78    agent::{OpenOnboardingModal, OpenSettings, ResetOnboarding, ToggleModelSelector},
  79    assistant::{OpenRulesLibrary, ToggleFocus},
  80};
  81
  82const AGENT_PANEL_KEY: &str = "agent_panel";
  83
  84#[derive(Serialize, Deserialize)]
  85struct SerializedAgentPanel {
  86    width: Option<Pixels>,
  87    selected_agent: Option<AgentType>,
  88}
  89
  90pub fn init(cx: &mut App) {
  91    cx.observe_new(
  92        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  93            workspace
  94                .register_action(|workspace, action: &NewThread, window, cx| {
  95                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  96                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  97                        workspace.focus_panel::<AgentPanel>(window, cx);
  98                    }
  99                })
 100                .register_action(|workspace, _: &OpenHistory, window, cx| {
 101                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 102                        workspace.focus_panel::<AgentPanel>(window, cx);
 103                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
 104                    }
 105                })
 106                .register_action(|workspace, _: &OpenSettings, window, cx| {
 107                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 108                        workspace.focus_panel::<AgentPanel>(window, cx);
 109                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 110                    }
 111                })
 112                .register_action(|workspace, _: &NewTextThread, window, cx| {
 113                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 114                        workspace.focus_panel::<AgentPanel>(window, cx);
 115                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 116                    }
 117                })
 118                .register_action(|workspace, action: &NewExternalAgentThread, window, cx| {
 119                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 120                        workspace.focus_panel::<AgentPanel>(window, cx);
 121                        panel.update(cx, |panel, cx| {
 122                            panel.external_thread(action.agent, None, window, cx)
 123                        });
 124                    }
 125                })
 126                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 127                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 128                        workspace.focus_panel::<AgentPanel>(window, cx);
 129                        panel.update(cx, |panel, cx| {
 130                            panel.deploy_rules_library(action, window, cx)
 131                        });
 132                    }
 133                })
 134                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 135                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 136                        workspace.focus_panel::<AgentPanel>(window, cx);
 137                        match &panel.read(cx).active_view {
 138                            ActiveView::Thread { thread, .. } => {
 139                                let thread = thread.read(cx).thread().clone();
 140                                AgentDiffPane::deploy_in_workspace(thread, workspace, window, cx);
 141                            }
 142                            ActiveView::ExternalAgentThread { .. }
 143                            | ActiveView::TextThread { .. }
 144                            | ActiveView::History
 145                            | ActiveView::Configuration => {}
 146                        }
 147                    }
 148                })
 149                .register_action(|workspace, _: &Follow, window, cx| {
 150                    workspace.follow(CollaboratorId::Agent, window, cx);
 151                })
 152                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 153                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 154                        return;
 155                    };
 156                    workspace.focus_panel::<AgentPanel>(window, cx);
 157                    panel.update(cx, |panel, cx| {
 158                        if let Some(message_editor) = panel.active_message_editor() {
 159                            message_editor.update(cx, |editor, cx| {
 160                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 161                            });
 162                        }
 163                    });
 164                })
 165                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 166                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 167                        workspace.focus_panel::<AgentPanel>(window, cx);
 168                        panel.update(cx, |panel, cx| {
 169                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 170                        });
 171                    }
 172                })
 173                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 174                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 175                        workspace.focus_panel::<AgentPanel>(window, cx);
 176                        panel.update(cx, |panel, cx| {
 177                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 178                        });
 179                    }
 180                })
 181                .register_action(|workspace, _: &ToggleNewThreadMenu, window, cx| {
 182                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 183                        workspace.focus_panel::<AgentPanel>(window, cx);
 184                        panel.update(cx, |panel, cx| {
 185                            panel.toggle_new_thread_menu(&ToggleNewThreadMenu, window, cx);
 186                        });
 187                    }
 188                })
 189                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 190                    AgentOnboardingModal::toggle(workspace, window, cx)
 191                })
 192                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 193                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 194                    window.refresh();
 195                })
 196                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 197                    OnboardingUpsell::set_dismissed(false, cx);
 198                })
 199                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 200                    TrialEndUpsell::set_dismissed(false, cx);
 201                });
 202        },
 203    )
 204    .detach();
 205}
 206
 207enum ActiveView {
 208    Thread {
 209        thread: Entity<ActiveThread>,
 210        change_title_editor: Entity<Editor>,
 211        message_editor: Entity<MessageEditor>,
 212        _subscriptions: Vec<gpui::Subscription>,
 213    },
 214    ExternalAgentThread {
 215        thread_view: Entity<AcpThreadView>,
 216    },
 217    TextThread {
 218        context_editor: Entity<TextThreadEditor>,
 219        title_editor: Entity<Editor>,
 220        buffer_search_bar: Entity<BufferSearchBar>,
 221        _subscriptions: Vec<gpui::Subscription>,
 222    },
 223    History,
 224    Configuration,
 225}
 226
 227enum WhichFontSize {
 228    AgentFont,
 229    BufferFont,
 230    None,
 231}
 232
 233#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 234pub enum AgentType {
 235    #[default]
 236    Zed,
 237    TextThread,
 238    Gemini,
 239    ClaudeCode,
 240    NativeAgent,
 241}
 242
 243impl AgentType {
 244    fn label(self) -> impl Into<SharedString> {
 245        match self {
 246            Self::Zed | Self::TextThread => "Zed Agent",
 247            Self::NativeAgent => "Agent 2",
 248            Self::Gemini => "Google Gemini",
 249            Self::ClaudeCode => "Claude Code",
 250        }
 251    }
 252
 253    fn icon(self) -> IconName {
 254        match self {
 255            Self::Zed | Self::TextThread => IconName::AiZed,
 256            Self::NativeAgent => IconName::ZedAssistant,
 257            Self::Gemini => IconName::AiGemini,
 258            Self::ClaudeCode => IconName::AiClaude,
 259        }
 260    }
 261}
 262
 263impl ActiveView {
 264    pub fn which_font_size_used(&self) -> WhichFontSize {
 265        match self {
 266            ActiveView::Thread { .. }
 267            | ActiveView::ExternalAgentThread { .. }
 268            | ActiveView::History => WhichFontSize::AgentFont,
 269            ActiveView::TextThread { .. } => WhichFontSize::BufferFont,
 270            ActiveView::Configuration => WhichFontSize::None,
 271        }
 272    }
 273
 274    pub fn thread(
 275        active_thread: Entity<ActiveThread>,
 276        message_editor: Entity<MessageEditor>,
 277        window: &mut Window,
 278        cx: &mut Context<AgentPanel>,
 279    ) -> Self {
 280        let summary = active_thread.read(cx).summary(cx).or_default();
 281
 282        let editor = cx.new(|cx| {
 283            let mut editor = Editor::single_line(window, cx);
 284            editor.set_text(summary.clone(), window, cx);
 285            editor
 286        });
 287
 288        let subscriptions = vec![
 289            cx.subscribe(&message_editor, |this, _, event, cx| match event {
 290                MessageEditorEvent::Changed | MessageEditorEvent::EstimatedTokenCount => {
 291                    cx.notify();
 292                }
 293                MessageEditorEvent::ScrollThreadToBottom => match &this.active_view {
 294                    ActiveView::Thread { thread, .. } => {
 295                        thread.update(cx, |thread, cx| {
 296                            thread.scroll_to_bottom(cx);
 297                        });
 298                    }
 299                    ActiveView::ExternalAgentThread { .. } => {}
 300                    ActiveView::TextThread { .. }
 301                    | ActiveView::History
 302                    | ActiveView::Configuration => {}
 303                },
 304            }),
 305            window.subscribe(&editor, cx, {
 306                {
 307                    let thread = active_thread.clone();
 308                    move |editor, event, window, cx| match event {
 309                        EditorEvent::BufferEdited => {
 310                            let new_summary = editor.read(cx).text(cx);
 311
 312                            thread.update(cx, |thread, cx| {
 313                                thread.thread().update(cx, |thread, cx| {
 314                                    thread.set_summary(new_summary, cx);
 315                                });
 316                            })
 317                        }
 318                        EditorEvent::Blurred => {
 319                            if editor.read(cx).text(cx).is_empty() {
 320                                let summary = thread.read(cx).summary(cx).or_default();
 321
 322                                editor.update(cx, |editor, cx| {
 323                                    editor.set_text(summary, window, cx);
 324                                });
 325                            }
 326                        }
 327                        _ => {}
 328                    }
 329                }
 330            }),
 331            cx.subscribe(&active_thread, |_, _, event, cx| match &event {
 332                ActiveThreadEvent::EditingMessageTokenCountChanged => {
 333                    cx.notify();
 334                }
 335            }),
 336            cx.subscribe_in(&active_thread.read(cx).thread().clone(), window, {
 337                let editor = editor.clone();
 338                move |_, thread, event, window, cx| match event {
 339                    ThreadEvent::SummaryGenerated => {
 340                        let summary = thread.read(cx).summary().or_default();
 341
 342                        editor.update(cx, |editor, cx| {
 343                            editor.set_text(summary, window, cx);
 344                        })
 345                    }
 346                    ThreadEvent::MessageAdded(_) => {
 347                        cx.notify();
 348                    }
 349                    _ => {}
 350                }
 351            }),
 352        ];
 353
 354        Self::Thread {
 355            change_title_editor: editor,
 356            thread: active_thread,
 357            message_editor: message_editor,
 358            _subscriptions: subscriptions,
 359        }
 360    }
 361
 362    pub fn prompt_editor(
 363        context_editor: Entity<TextThreadEditor>,
 364        history_store: Entity<HistoryStore>,
 365        acp_history_store: Entity<agent2::HistoryStore>,
 366        language_registry: Arc<LanguageRegistry>,
 367        window: &mut Window,
 368        cx: &mut App,
 369    ) -> Self {
 370        let title = context_editor.read(cx).title(cx).to_string();
 371
 372        let editor = cx.new(|cx| {
 373            let mut editor = Editor::single_line(window, cx);
 374            editor.set_text(title, window, cx);
 375            editor
 376        });
 377
 378        // This is a workaround for `editor.set_text` emitting a `BufferEdited` event, which would
 379        // cause a custom summary to be set. The presence of this custom summary would cause
 380        // summarization to not happen.
 381        let mut suppress_first_edit = true;
 382
 383        let subscriptions = vec![
 384            window.subscribe(&editor, cx, {
 385                {
 386                    let context_editor = context_editor.clone();
 387                    move |editor, event, window, cx| match event {
 388                        EditorEvent::BufferEdited => {
 389                            if suppress_first_edit {
 390                                suppress_first_edit = false;
 391                                return;
 392                            }
 393                            let new_summary = editor.read(cx).text(cx);
 394
 395                            context_editor.update(cx, |context_editor, cx| {
 396                                context_editor
 397                                    .context()
 398                                    .update(cx, |assistant_context, cx| {
 399                                        assistant_context.set_custom_summary(new_summary, cx);
 400                                    })
 401                            })
 402                        }
 403                        EditorEvent::Blurred => {
 404                            if editor.read(cx).text(cx).is_empty() {
 405                                let summary = context_editor
 406                                    .read(cx)
 407                                    .context()
 408                                    .read(cx)
 409                                    .summary()
 410                                    .or_default();
 411
 412                                editor.update(cx, |editor, cx| {
 413                                    editor.set_text(summary, window, cx);
 414                                });
 415                            }
 416                        }
 417                        _ => {}
 418                    }
 419                }
 420            }),
 421            window.subscribe(&context_editor.read(cx).context().clone(), cx, {
 422                let editor = editor.clone();
 423                move |assistant_context, event, window, cx| match event {
 424                    ContextEvent::SummaryGenerated => {
 425                        let summary = assistant_context.read(cx).summary().or_default();
 426
 427                        editor.update(cx, |editor, cx| {
 428                            editor.set_text(summary, window, cx);
 429                        })
 430                    }
 431                    ContextEvent::PathChanged { old_path, new_path } => {
 432                        history_store.update(cx, |history_store, cx| {
 433                            if let Some(old_path) = old_path {
 434                                history_store
 435                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 436                            } else {
 437                                history_store.push_recently_opened_entry(
 438                                    HistoryEntryId::Context(new_path.clone()),
 439                                    cx,
 440                                );
 441                            }
 442                        });
 443
 444                        acp_history_store.update(cx, |history_store, cx| {
 445                            if let Some(old_path) = old_path {
 446                                history_store
 447                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 448                            } else {
 449                                history_store.push_recently_opened_entry(
 450                                    agent2::HistoryEntryId::TextThread(new_path.clone()),
 451                                    cx,
 452                                );
 453                            }
 454                        });
 455                    }
 456                    _ => {}
 457                }
 458            }),
 459        ];
 460
 461        let buffer_search_bar =
 462            cx.new(|cx| BufferSearchBar::new(Some(language_registry), window, cx));
 463        buffer_search_bar.update(cx, |buffer_search_bar, cx| {
 464            buffer_search_bar.set_active_pane_item(Some(&context_editor), window, cx)
 465        });
 466
 467        Self::TextThread {
 468            context_editor,
 469            title_editor: editor,
 470            buffer_search_bar,
 471            _subscriptions: subscriptions,
 472        }
 473    }
 474}
 475
 476pub struct AgentPanel {
 477    workspace: WeakEntity<Workspace>,
 478    user_store: Entity<UserStore>,
 479    project: Entity<Project>,
 480    fs: Arc<dyn Fs>,
 481    language_registry: Arc<LanguageRegistry>,
 482    thread_store: Entity<ThreadStore>,
 483    acp_history: Entity<AcpThreadHistory>,
 484    acp_history_store: Entity<agent2::HistoryStore>,
 485    _default_model_subscription: Subscription,
 486    context_store: Entity<TextThreadStore>,
 487    prompt_store: Option<Entity<PromptStore>>,
 488    inline_assist_context_store: Entity<ContextStore>,
 489    configuration: Option<Entity<AgentConfiguration>>,
 490    configuration_subscription: Option<Subscription>,
 491    local_timezone: UtcOffset,
 492    active_view: ActiveView,
 493    previous_view: Option<ActiveView>,
 494    history_store: Entity<HistoryStore>,
 495    history: Entity<ThreadHistory>,
 496    hovered_recent_history_item: Option<usize>,
 497    new_thread_menu_handle: PopoverMenuHandle<ContextMenu>,
 498    agent_panel_menu_handle: PopoverMenuHandle<ContextMenu>,
 499    assistant_navigation_menu_handle: PopoverMenuHandle<ContextMenu>,
 500    assistant_navigation_menu: Option<Entity<ContextMenu>>,
 501    width: Option<Pixels>,
 502    height: Option<Pixels>,
 503    zoomed: bool,
 504    pending_serialization: Option<Task<Result<()>>>,
 505    onboarding: Entity<AgentPanelOnboarding>,
 506    selected_agent: AgentType,
 507}
 508
 509impl AgentPanel {
 510    fn serialize(&mut self, cx: &mut Context<Self>) {
 511        let width = self.width;
 512        let selected_agent = self.selected_agent;
 513        self.pending_serialization = Some(cx.background_spawn(async move {
 514            KEY_VALUE_STORE
 515                .write_kvp(
 516                    AGENT_PANEL_KEY.into(),
 517                    serde_json::to_string(&SerializedAgentPanel {
 518                        width,
 519                        selected_agent: Some(selected_agent),
 520                    })?,
 521                )
 522                .await?;
 523            anyhow::Ok(())
 524        }));
 525    }
 526    pub fn load(
 527        workspace: WeakEntity<Workspace>,
 528        prompt_builder: Arc<PromptBuilder>,
 529        mut cx: AsyncWindowContext,
 530    ) -> Task<Result<Entity<Self>>> {
 531        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
 532        cx.spawn(async move |cx| {
 533            let prompt_store = match prompt_store {
 534                Ok(prompt_store) => prompt_store.await.ok(),
 535                Err(_) => None,
 536            };
 537            let tools = cx.new(|_| ToolWorkingSet::default())?;
 538            let thread_store = workspace
 539                .update(cx, |workspace, cx| {
 540                    let project = workspace.project().clone();
 541                    ThreadStore::load(
 542                        project,
 543                        tools.clone(),
 544                        prompt_store.clone(),
 545                        prompt_builder.clone(),
 546                        cx,
 547                    )
 548                })?
 549                .await?;
 550
 551            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
 552            let context_store = workspace
 553                .update(cx, |workspace, cx| {
 554                    let project = workspace.project().clone();
 555                    assistant_context::ContextStore::new(
 556                        project,
 557                        prompt_builder.clone(),
 558                        slash_commands,
 559                        cx,
 560                    )
 561                })?
 562                .await?;
 563
 564            let serialized_panel = if let Some(panel) = cx
 565                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(AGENT_PANEL_KEY) })
 566                .await
 567                .log_err()
 568                .flatten()
 569            {
 570                Some(serde_json::from_str::<SerializedAgentPanel>(&panel)?)
 571            } else {
 572                None
 573            };
 574
 575            let panel = workspace.update_in(cx, |workspace, window, cx| {
 576                let panel = cx.new(|cx| {
 577                    Self::new(
 578                        workspace,
 579                        thread_store,
 580                        context_store,
 581                        prompt_store,
 582                        window,
 583                        cx,
 584                    )
 585                });
 586                if let Some(serialized_panel) = serialized_panel {
 587                    panel.update(cx, |panel, cx| {
 588                        panel.width = serialized_panel.width.map(|w| w.round());
 589                        if let Some(selected_agent) = serialized_panel.selected_agent {
 590                            panel.selected_agent = selected_agent;
 591                            panel.new_agent_thread(selected_agent, window, cx);
 592                        }
 593                        cx.notify();
 594                    });
 595                }
 596                panel
 597            })?;
 598
 599            Ok(panel)
 600        })
 601    }
 602
 603    fn new(
 604        workspace: &Workspace,
 605        thread_store: Entity<ThreadStore>,
 606        context_store: Entity<TextThreadStore>,
 607        prompt_store: Option<Entity<PromptStore>>,
 608        window: &mut Window,
 609        cx: &mut Context<Self>,
 610    ) -> Self {
 611        let thread = thread_store.update(cx, |this, cx| this.create_thread(cx));
 612        let fs = workspace.app_state().fs.clone();
 613        let user_store = workspace.app_state().user_store.clone();
 614        let project = workspace.project();
 615        let language_registry = project.read(cx).languages().clone();
 616        let client = workspace.client().clone();
 617        let workspace = workspace.weak_handle();
 618        let weak_self = cx.entity().downgrade();
 619
 620        let message_editor_context_store =
 621            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 622        let inline_assist_context_store =
 623            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 624
 625        let thread_id = thread.read(cx).id().clone();
 626
 627        let history_store = cx.new(|cx| {
 628            HistoryStore::new(
 629                thread_store.clone(),
 630                context_store.clone(),
 631                [HistoryEntryId::Thread(thread_id)],
 632                cx,
 633            )
 634        });
 635
 636        let message_editor = cx.new(|cx| {
 637            MessageEditor::new(
 638                fs.clone(),
 639                workspace.clone(),
 640                message_editor_context_store.clone(),
 641                prompt_store.clone(),
 642                thread_store.downgrade(),
 643                context_store.downgrade(),
 644                Some(history_store.downgrade()),
 645                thread.clone(),
 646                window,
 647                cx,
 648            )
 649        });
 650
 651        let acp_history_store =
 652            cx.new(|cx| agent2::HistoryStore::new(context_store.clone(), [], cx));
 653        let acp_history = cx.new(|cx| AcpThreadHistory::new(acp_history_store.clone(), window, cx));
 654        cx.subscribe_in(
 655            &acp_history,
 656            window,
 657            |this, _, event, window, cx| match event {
 658                ThreadHistoryEvent::Open(HistoryEntry::AcpThread(thread)) => {
 659                    this.external_thread(
 660                        Some(crate::ExternalAgent::NativeAgent),
 661                        Some(thread.clone()),
 662                        window,
 663                        cx,
 664                    );
 665                }
 666                ThreadHistoryEvent::Open(HistoryEntry::TextThread(thread)) => {
 667                    this.open_saved_prompt_editor(thread.path.clone(), window, cx)
 668                        .detach_and_log_err(cx);
 669                }
 670            },
 671        )
 672        .detach();
 673
 674        cx.observe(&history_store, |_, _, cx| cx.notify()).detach();
 675
 676        let active_thread = cx.new(|cx| {
 677            ActiveThread::new(
 678                thread.clone(),
 679                thread_store.clone(),
 680                context_store.clone(),
 681                message_editor_context_store.clone(),
 682                language_registry.clone(),
 683                workspace.clone(),
 684                window,
 685                cx,
 686            )
 687        });
 688
 689        let panel_type = AgentSettings::get_global(cx).default_view;
 690        let active_view = match panel_type {
 691            DefaultView::Thread => ActiveView::thread(active_thread, message_editor, window, cx),
 692            DefaultView::TextThread => {
 693                let context =
 694                    context_store.update(cx, |context_store, cx| context_store.create(cx));
 695                let lsp_adapter_delegate = make_lsp_adapter_delegate(&project.clone(), cx).unwrap();
 696                let context_editor = cx.new(|cx| {
 697                    let mut editor = TextThreadEditor::for_context(
 698                        context,
 699                        fs.clone(),
 700                        workspace.clone(),
 701                        project.clone(),
 702                        lsp_adapter_delegate,
 703                        window,
 704                        cx,
 705                    );
 706                    editor.insert_default_prompt(window, cx);
 707                    editor
 708                });
 709                ActiveView::prompt_editor(
 710                    context_editor,
 711                    history_store.clone(),
 712                    acp_history_store.clone(),
 713                    language_registry.clone(),
 714                    window,
 715                    cx,
 716                )
 717            }
 718        };
 719
 720        AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 721
 722        let weak_panel = weak_self.clone();
 723
 724        window.defer(cx, move |window, cx| {
 725            let panel = weak_panel.clone();
 726            let assistant_navigation_menu =
 727                ContextMenu::build_persistent(window, cx, move |mut menu, _window, cx| {
 728                    if let Some(panel) = panel.upgrade() {
 729                        if cx.has_flag::<AcpFeatureFlag>() {
 730                            menu = Self::populate_recently_opened_menu_section_new(menu, panel, cx);
 731                        } else {
 732                            menu = Self::populate_recently_opened_menu_section_old(menu, panel, cx);
 733                        }
 734                    }
 735                    menu.action("View All", Box::new(OpenHistory))
 736                        .end_slot_action(DeleteRecentlyOpenThread.boxed_clone())
 737                        .fixed_width(px(320.).into())
 738                        .keep_open_on_confirm(false)
 739                        .key_context("NavigationMenu")
 740                });
 741            weak_panel
 742                .update(cx, |panel, cx| {
 743                    cx.subscribe_in(
 744                        &assistant_navigation_menu,
 745                        window,
 746                        |_, menu, _: &DismissEvent, window, cx| {
 747                            menu.update(cx, |menu, _| {
 748                                menu.clear_selected();
 749                            });
 750                            cx.focus_self(window);
 751                        },
 752                    )
 753                    .detach();
 754                    panel.assistant_navigation_menu = Some(assistant_navigation_menu);
 755                })
 756                .ok();
 757        });
 758
 759        let _default_model_subscription = cx.subscribe(
 760            &LanguageModelRegistry::global(cx),
 761            |this, _, event: &language_model::Event, cx| match event {
 762                language_model::Event::DefaultModelChanged => match &this.active_view {
 763                    ActiveView::Thread { thread, .. } => {
 764                        thread
 765                            .read(cx)
 766                            .thread()
 767                            .clone()
 768                            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx));
 769                    }
 770                    ActiveView::ExternalAgentThread { .. }
 771                    | ActiveView::TextThread { .. }
 772                    | ActiveView::History
 773                    | ActiveView::Configuration => {}
 774                },
 775                _ => {}
 776            },
 777        );
 778
 779        let onboarding = cx.new(|cx| {
 780            AgentPanelOnboarding::new(
 781                user_store.clone(),
 782                client,
 783                |_window, cx| {
 784                    OnboardingUpsell::set_dismissed(true, cx);
 785                },
 786                cx,
 787            )
 788        });
 789
 790        Self {
 791            active_view,
 792            workspace,
 793            user_store,
 794            project: project.clone(),
 795            fs: fs.clone(),
 796            language_registry,
 797            thread_store: thread_store.clone(),
 798            _default_model_subscription,
 799            context_store,
 800            prompt_store,
 801            configuration: None,
 802            configuration_subscription: None,
 803            local_timezone: UtcOffset::from_whole_seconds(
 804                chrono::Local::now().offset().local_minus_utc(),
 805            )
 806            .unwrap(),
 807            inline_assist_context_store,
 808            previous_view: None,
 809            history_store: history_store.clone(),
 810            history: cx.new(|cx| ThreadHistory::new(weak_self, history_store, window, cx)),
 811            hovered_recent_history_item: None,
 812            new_thread_menu_handle: PopoverMenuHandle::default(),
 813            agent_panel_menu_handle: PopoverMenuHandle::default(),
 814            assistant_navigation_menu_handle: PopoverMenuHandle::default(),
 815            assistant_navigation_menu: None,
 816            width: None,
 817            height: None,
 818            zoomed: false,
 819            pending_serialization: None,
 820            onboarding,
 821            acp_history,
 822            acp_history_store,
 823            selected_agent: AgentType::default(),
 824        }
 825    }
 826
 827    pub fn toggle_focus(
 828        workspace: &mut Workspace,
 829        _: &ToggleFocus,
 830        window: &mut Window,
 831        cx: &mut Context<Workspace>,
 832    ) {
 833        if workspace
 834            .panel::<Self>(cx)
 835            .is_some_and(|panel| panel.read(cx).enabled(cx))
 836            && !DisableAiSettings::get_global(cx).disable_ai
 837        {
 838            workspace.toggle_panel_focus::<Self>(window, cx);
 839        }
 840    }
 841
 842    pub(crate) fn local_timezone(&self) -> UtcOffset {
 843        self.local_timezone
 844    }
 845
 846    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 847        &self.prompt_store
 848    }
 849
 850    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 851        &self.inline_assist_context_store
 852    }
 853
 854    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 855        &self.thread_store
 856    }
 857
 858    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 859        &self.context_store
 860    }
 861
 862    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 863        match &self.active_view {
 864            ActiveView::Thread { thread, .. } => {
 865                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 866            }
 867            ActiveView::ExternalAgentThread { .. }
 868            | ActiveView::TextThread { .. }
 869            | ActiveView::History
 870            | ActiveView::Configuration => {}
 871        }
 872    }
 873
 874    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 875        match &self.active_view {
 876            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 877            ActiveView::ExternalAgentThread { .. }
 878            | ActiveView::TextThread { .. }
 879            | ActiveView::History
 880            | ActiveView::Configuration => None,
 881        }
 882    }
 883
 884    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 885        // Preserve chat box text when using creating new thread
 886        let preserved_text = self
 887            .active_message_editor()
 888            .map(|editor| editor.read(cx).get_text(cx).trim().to_string());
 889
 890        let thread = self
 891            .thread_store
 892            .update(cx, |this, cx| this.create_thread(cx));
 893
 894        let context_store = cx.new(|_cx| {
 895            ContextStore::new(
 896                self.project.downgrade(),
 897                Some(self.thread_store.downgrade()),
 898            )
 899        });
 900
 901        if let Some(other_thread_id) = action.from_thread_id.clone() {
 902            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 903                this.open_thread(&other_thread_id, window, cx)
 904            });
 905
 906            cx.spawn({
 907                let context_store = context_store.clone();
 908
 909                async move |_panel, cx| {
 910                    let other_thread = other_thread_task.await?;
 911
 912                    context_store.update(cx, |this, cx| {
 913                        this.add_thread(other_thread, false, cx);
 914                    })?;
 915                    anyhow::Ok(())
 916                }
 917            })
 918            .detach_and_log_err(cx);
 919        }
 920
 921        let active_thread = cx.new(|cx| {
 922            ActiveThread::new(
 923                thread.clone(),
 924                self.thread_store.clone(),
 925                self.context_store.clone(),
 926                context_store.clone(),
 927                self.language_registry.clone(),
 928                self.workspace.clone(),
 929                window,
 930                cx,
 931            )
 932        });
 933
 934        let message_editor = cx.new(|cx| {
 935            MessageEditor::new(
 936                self.fs.clone(),
 937                self.workspace.clone(),
 938                context_store.clone(),
 939                self.prompt_store.clone(),
 940                self.thread_store.downgrade(),
 941                self.context_store.downgrade(),
 942                Some(self.history_store.downgrade()),
 943                thread.clone(),
 944                window,
 945                cx,
 946            )
 947        });
 948
 949        if let Some(text) = preserved_text {
 950            message_editor.update(cx, |editor, cx| {
 951                editor.set_text(text, window, cx);
 952            });
 953        }
 954
 955        message_editor.focus_handle(cx).focus(window);
 956
 957        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 958        self.set_active_view(thread_view, window, cx);
 959
 960        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
 961    }
 962
 963    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 964        let context = self
 965            .context_store
 966            .update(cx, |context_store, cx| context_store.create(cx));
 967        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 968            .log_err()
 969            .flatten();
 970
 971        let context_editor = cx.new(|cx| {
 972            let mut editor = TextThreadEditor::for_context(
 973                context,
 974                self.fs.clone(),
 975                self.workspace.clone(),
 976                self.project.clone(),
 977                lsp_adapter_delegate,
 978                window,
 979                cx,
 980            );
 981            editor.insert_default_prompt(window, cx);
 982            editor
 983        });
 984
 985        self.set_active_view(
 986            ActiveView::prompt_editor(
 987                context_editor.clone(),
 988                self.history_store.clone(),
 989                self.acp_history_store.clone(),
 990                self.language_registry.clone(),
 991                window,
 992                cx,
 993            ),
 994            window,
 995            cx,
 996        );
 997        context_editor.focus_handle(cx).focus(window);
 998    }
 999
1000    fn external_thread(
1001        &mut self,
1002        agent_choice: Option<crate::ExternalAgent>,
1003        resume_thread: Option<DbThreadMetadata>,
1004        window: &mut Window,
1005        cx: &mut Context<Self>,
1006    ) {
1007        let workspace = self.workspace.clone();
1008        let project = self.project.clone();
1009        let fs = self.fs.clone();
1010
1011        const LAST_USED_EXTERNAL_AGENT_KEY: &str = "agent_panel__last_used_external_agent";
1012
1013        #[derive(Default, Serialize, Deserialize)]
1014        struct LastUsedExternalAgent {
1015            agent: crate::ExternalAgent,
1016        }
1017
1018        let thread_store = self.thread_store.clone();
1019        let text_thread_store = self.context_store.clone();
1020        let history = self.acp_history_store.clone();
1021
1022        cx.spawn_in(window, async move |this, cx| {
1023            let ext_agent = match agent_choice {
1024                Some(agent) => {
1025                    cx.background_spawn(async move {
1026                        if let Some(serialized) =
1027                            serde_json::to_string(&LastUsedExternalAgent { agent }).log_err()
1028                        {
1029                            KEY_VALUE_STORE
1030                                .write_kvp(LAST_USED_EXTERNAL_AGENT_KEY.to_string(), serialized)
1031                                .await
1032                                .log_err();
1033                        }
1034                    })
1035                    .detach();
1036
1037                    agent
1038                }
1039                None => {
1040                    cx.background_spawn(async move {
1041                        KEY_VALUE_STORE.read_kvp(LAST_USED_EXTERNAL_AGENT_KEY)
1042                    })
1043                    .await
1044                    .log_err()
1045                    .flatten()
1046                    .and_then(|value| {
1047                        serde_json::from_str::<LastUsedExternalAgent>(&value).log_err()
1048                    })
1049                    .unwrap_or_default()
1050                    .agent
1051                }
1052            };
1053
1054            let server = ext_agent.server(fs, history);
1055
1056            this.update_in(cx, |this, window, cx| {
1057                match ext_agent {
1058                    crate::ExternalAgent::Gemini | crate::ExternalAgent::NativeAgent => {
1059                        if !cx.has_flag::<AcpFeatureFlag>() {
1060                            return;
1061                        }
1062                    }
1063                    crate::ExternalAgent::ClaudeCode => {
1064                        if !cx.has_flag::<ClaudeCodeFeatureFlag>() {
1065                            return;
1066                        }
1067                    }
1068                }
1069
1070                let thread_view = cx.new(|cx| {
1071                    crate::acp::AcpThreadView::new(
1072                        server,
1073                        resume_thread,
1074                        workspace.clone(),
1075                        project,
1076                        thread_store.clone(),
1077                        text_thread_store.clone(),
1078                        window,
1079                        cx,
1080                    )
1081                });
1082
1083                this.set_active_view(ActiveView::ExternalAgentThread { thread_view }, window, cx);
1084            })
1085        })
1086        .detach_and_log_err(cx);
1087    }
1088
1089    fn deploy_rules_library(
1090        &mut self,
1091        action: &OpenRulesLibrary,
1092        _window: &mut Window,
1093        cx: &mut Context<Self>,
1094    ) {
1095        open_rules_library(
1096            self.language_registry.clone(),
1097            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
1098            Rc::new(|| {
1099                Rc::new(SlashCommandCompletionProvider::new(
1100                    Arc::new(SlashCommandWorkingSet::default()),
1101                    None,
1102                    None,
1103                ))
1104            }),
1105            action
1106                .prompt_to_select
1107                .map(|uuid| UserPromptId(uuid).into()),
1108            cx,
1109        )
1110        .detach_and_log_err(cx);
1111    }
1112
1113    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1114        if matches!(self.active_view, ActiveView::History) {
1115            if let Some(previous_view) = self.previous_view.take() {
1116                self.set_active_view(previous_view, window, cx);
1117            }
1118        } else {
1119            self.thread_store
1120                .update(cx, |thread_store, cx| thread_store.reload(cx))
1121                .detach_and_log_err(cx);
1122            self.set_active_view(ActiveView::History, window, cx);
1123        }
1124        cx.notify();
1125    }
1126
1127    pub(crate) fn open_saved_prompt_editor(
1128        &mut self,
1129        path: Arc<Path>,
1130        window: &mut Window,
1131        cx: &mut Context<Self>,
1132    ) -> Task<Result<()>> {
1133        let context = self
1134            .context_store
1135            .update(cx, |store, cx| store.open_local_context(path, cx));
1136        cx.spawn_in(window, async move |this, cx| {
1137            let context = context.await?;
1138            this.update_in(cx, |this, window, cx| {
1139                this.open_prompt_editor(context, window, cx);
1140            })
1141        })
1142    }
1143
1144    pub(crate) fn open_prompt_editor(
1145        &mut self,
1146        context: Entity<AssistantContext>,
1147        window: &mut Window,
1148        cx: &mut Context<Self>,
1149    ) {
1150        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
1151            .log_err()
1152            .flatten();
1153        let editor = cx.new(|cx| {
1154            TextThreadEditor::for_context(
1155                context,
1156                self.fs.clone(),
1157                self.workspace.clone(),
1158                self.project.clone(),
1159                lsp_adapter_delegate,
1160                window,
1161                cx,
1162            )
1163        });
1164        self.set_active_view(
1165            ActiveView::prompt_editor(
1166                editor.clone(),
1167                self.history_store.clone(),
1168                self.acp_history_store.clone(),
1169                self.language_registry.clone(),
1170                window,
1171                cx,
1172            ),
1173            window,
1174            cx,
1175        );
1176    }
1177
1178    pub(crate) fn open_thread_by_id(
1179        &mut self,
1180        thread_id: &ThreadId,
1181        window: &mut Window,
1182        cx: &mut Context<Self>,
1183    ) -> Task<Result<()>> {
1184        let open_thread_task = self
1185            .thread_store
1186            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
1187        cx.spawn_in(window, async move |this, cx| {
1188            let thread = open_thread_task.await?;
1189            this.update_in(cx, |this, window, cx| {
1190                this.open_thread(thread, window, cx);
1191                anyhow::Ok(())
1192            })??;
1193            Ok(())
1194        })
1195    }
1196
1197    pub(crate) fn open_thread(
1198        &mut self,
1199        thread: Entity<Thread>,
1200        window: &mut Window,
1201        cx: &mut Context<Self>,
1202    ) {
1203        let context_store = cx.new(|_cx| {
1204            ContextStore::new(
1205                self.project.downgrade(),
1206                Some(self.thread_store.downgrade()),
1207            )
1208        });
1209
1210        let active_thread = cx.new(|cx| {
1211            ActiveThread::new(
1212                thread.clone(),
1213                self.thread_store.clone(),
1214                self.context_store.clone(),
1215                context_store.clone(),
1216                self.language_registry.clone(),
1217                self.workspace.clone(),
1218                window,
1219                cx,
1220            )
1221        });
1222
1223        let message_editor = cx.new(|cx| {
1224            MessageEditor::new(
1225                self.fs.clone(),
1226                self.workspace.clone(),
1227                context_store,
1228                self.prompt_store.clone(),
1229                self.thread_store.downgrade(),
1230                self.context_store.downgrade(),
1231                Some(self.history_store.downgrade()),
1232                thread.clone(),
1233                window,
1234                cx,
1235            )
1236        });
1237        message_editor.focus_handle(cx).focus(window);
1238
1239        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1240        self.set_active_view(thread_view, window, cx);
1241        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
1242    }
1243
1244    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1245        match self.active_view {
1246            ActiveView::Configuration | ActiveView::History => {
1247                if let Some(previous_view) = self.previous_view.take() {
1248                    self.active_view = previous_view;
1249
1250                    match &self.active_view {
1251                        ActiveView::Thread { message_editor, .. } => {
1252                            message_editor.focus_handle(cx).focus(window);
1253                        }
1254                        ActiveView::ExternalAgentThread { thread_view } => {
1255                            thread_view.focus_handle(cx).focus(window);
1256                        }
1257                        ActiveView::TextThread { context_editor, .. } => {
1258                            context_editor.focus_handle(cx).focus(window);
1259                        }
1260                        ActiveView::History | ActiveView::Configuration => {}
1261                    }
1262                }
1263                cx.notify();
1264            }
1265            _ => {}
1266        }
1267    }
1268
1269    pub fn toggle_navigation_menu(
1270        &mut self,
1271        _: &ToggleNavigationMenu,
1272        window: &mut Window,
1273        cx: &mut Context<Self>,
1274    ) {
1275        self.assistant_navigation_menu_handle.toggle(window, cx);
1276    }
1277
1278    pub fn toggle_options_menu(
1279        &mut self,
1280        _: &ToggleOptionsMenu,
1281        window: &mut Window,
1282        cx: &mut Context<Self>,
1283    ) {
1284        self.agent_panel_menu_handle.toggle(window, cx);
1285    }
1286
1287    pub fn toggle_new_thread_menu(
1288        &mut self,
1289        _: &ToggleNewThreadMenu,
1290        window: &mut Window,
1291        cx: &mut Context<Self>,
1292    ) {
1293        self.new_thread_menu_handle.toggle(window, cx);
1294    }
1295
1296    pub fn increase_font_size(
1297        &mut self,
1298        action: &IncreaseBufferFontSize,
1299        _: &mut Window,
1300        cx: &mut Context<Self>,
1301    ) {
1302        self.handle_font_size_action(action.persist, px(1.0), cx);
1303    }
1304
1305    pub fn decrease_font_size(
1306        &mut self,
1307        action: &DecreaseBufferFontSize,
1308        _: &mut Window,
1309        cx: &mut Context<Self>,
1310    ) {
1311        self.handle_font_size_action(action.persist, px(-1.0), cx);
1312    }
1313
1314    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1315        match self.active_view.which_font_size_used() {
1316            WhichFontSize::AgentFont => {
1317                if persist {
1318                    update_settings_file::<ThemeSettings>(
1319                        self.fs.clone(),
1320                        cx,
1321                        move |settings, cx| {
1322                            let agent_font_size =
1323                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1324                            let _ = settings
1325                                .agent_font_size
1326                                .insert(Some(theme::clamp_font_size(agent_font_size).into()));
1327                        },
1328                    );
1329                } else {
1330                    theme::adjust_agent_font_size(cx, |size| size + delta);
1331                }
1332            }
1333            WhichFontSize::BufferFont => {
1334                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1335                // default handler that changes that font size.
1336                cx.propagate();
1337            }
1338            WhichFontSize::None => {}
1339        }
1340    }
1341
1342    pub fn reset_font_size(
1343        &mut self,
1344        action: &ResetBufferFontSize,
1345        _: &mut Window,
1346        cx: &mut Context<Self>,
1347    ) {
1348        if action.persist {
1349            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1350                settings.agent_font_size = None;
1351            });
1352        } else {
1353            theme::reset_agent_font_size(cx);
1354        }
1355    }
1356
1357    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1358        if self.zoomed {
1359            cx.emit(PanelEvent::ZoomOut);
1360        } else {
1361            if !self.focus_handle(cx).contains_focused(window, cx) {
1362                cx.focus_self(window);
1363            }
1364            cx.emit(PanelEvent::ZoomIn);
1365        }
1366    }
1367
1368    pub fn open_agent_diff(
1369        &mut self,
1370        _: &OpenAgentDiff,
1371        window: &mut Window,
1372        cx: &mut Context<Self>,
1373    ) {
1374        match &self.active_view {
1375            ActiveView::Thread { thread, .. } => {
1376                let thread = thread.read(cx).thread().clone();
1377                self.workspace
1378                    .update(cx, |workspace, cx| {
1379                        AgentDiffPane::deploy_in_workspace(
1380                            AgentDiffThread::Native(thread),
1381                            workspace,
1382                            window,
1383                            cx,
1384                        )
1385                    })
1386                    .log_err();
1387            }
1388            ActiveView::ExternalAgentThread { .. }
1389            | ActiveView::TextThread { .. }
1390            | ActiveView::History
1391            | ActiveView::Configuration => {}
1392        }
1393    }
1394
1395    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1396        let context_server_store = self.project.read(cx).context_server_store();
1397        let tools = self.thread_store.read(cx).tools();
1398        let fs = self.fs.clone();
1399
1400        self.set_active_view(ActiveView::Configuration, window, cx);
1401        self.configuration = Some(cx.new(|cx| {
1402            AgentConfiguration::new(
1403                fs,
1404                context_server_store,
1405                tools,
1406                self.language_registry.clone(),
1407                self.workspace.clone(),
1408                window,
1409                cx,
1410            )
1411        }));
1412
1413        if let Some(configuration) = self.configuration.as_ref() {
1414            self.configuration_subscription = Some(cx.subscribe_in(
1415                configuration,
1416                window,
1417                Self::handle_agent_configuration_event,
1418            ));
1419
1420            configuration.focus_handle(cx).focus(window);
1421        }
1422    }
1423
1424    pub(crate) fn open_active_thread_as_markdown(
1425        &mut self,
1426        _: &OpenActiveThreadAsMarkdown,
1427        window: &mut Window,
1428        cx: &mut Context<Self>,
1429    ) {
1430        let Some(workspace) = self.workspace.upgrade() else {
1431            return;
1432        };
1433
1434        match &self.active_view {
1435            ActiveView::Thread { thread, .. } => {
1436                active_thread::open_active_thread_as_markdown(
1437                    thread.read(cx).thread().clone(),
1438                    workspace,
1439                    window,
1440                    cx,
1441                )
1442                .detach_and_log_err(cx);
1443            }
1444            ActiveView::ExternalAgentThread { thread_view } => {
1445                thread_view
1446                    .update(cx, |thread_view, cx| {
1447                        thread_view.open_thread_as_markdown(workspace, window, cx)
1448                    })
1449                    .detach_and_log_err(cx);
1450            }
1451            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1452        }
1453    }
1454
1455    fn handle_agent_configuration_event(
1456        &mut self,
1457        _entity: &Entity<AgentConfiguration>,
1458        event: &AssistantConfigurationEvent,
1459        window: &mut Window,
1460        cx: &mut Context<Self>,
1461    ) {
1462        match event {
1463            AssistantConfigurationEvent::NewThread(provider) => {
1464                if LanguageModelRegistry::read_global(cx)
1465                    .default_model()
1466                    .is_none_or(|model| model.provider.id() != provider.id())
1467                    && let Some(model) = provider.default_model(cx)
1468                {
1469                    update_settings_file::<AgentSettings>(
1470                        self.fs.clone(),
1471                        cx,
1472                        move |settings, _| settings.set_model(model),
1473                    );
1474                }
1475
1476                self.new_thread(&NewThread::default(), window, cx);
1477                if let Some((thread, model)) =
1478                    self.active_thread(cx).zip(provider.default_model(cx))
1479                {
1480                    thread.update(cx, |thread, cx| {
1481                        thread.set_configured_model(
1482                            Some(ConfiguredModel {
1483                                provider: provider.clone(),
1484                                model,
1485                            }),
1486                            cx,
1487                        );
1488                    });
1489                }
1490            }
1491        }
1492    }
1493
1494    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<Thread>> {
1495        match &self.active_view {
1496            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
1497            _ => None,
1498        }
1499    }
1500
1501    pub(crate) fn delete_thread(
1502        &mut self,
1503        thread_id: &ThreadId,
1504        cx: &mut Context<Self>,
1505    ) -> Task<Result<()>> {
1506        self.thread_store
1507            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1508    }
1509
1510    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1511        let ActiveView::Thread { thread, .. } = &self.active_view else {
1512            return;
1513        };
1514
1515        let thread_state = thread.read(cx).thread().read(cx);
1516        if !thread_state.tool_use_limit_reached() {
1517            return;
1518        }
1519
1520        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1521        if let Some(model) = model {
1522            thread.update(cx, |active_thread, cx| {
1523                active_thread.thread().update(cx, |thread, cx| {
1524                    thread.insert_invisible_continue_message(cx);
1525                    thread.advance_prompt_id();
1526                    thread.send_to_model(
1527                        model,
1528                        CompletionIntent::UserPrompt,
1529                        Some(window.window_handle()),
1530                        cx,
1531                    );
1532                });
1533            });
1534        } else {
1535            log::warn!("No configured model available for continuation");
1536        }
1537    }
1538
1539    fn toggle_burn_mode(
1540        &mut self,
1541        _: &ToggleBurnMode,
1542        _window: &mut Window,
1543        cx: &mut Context<Self>,
1544    ) {
1545        let ActiveView::Thread { thread, .. } = &self.active_view else {
1546            return;
1547        };
1548
1549        thread.update(cx, |active_thread, cx| {
1550            active_thread.thread().update(cx, |thread, _cx| {
1551                let current_mode = thread.completion_mode();
1552
1553                thread.set_completion_mode(match current_mode {
1554                    CompletionMode::Burn => CompletionMode::Normal,
1555                    CompletionMode::Normal => CompletionMode::Burn,
1556                });
1557            });
1558        });
1559    }
1560
1561    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1562        match &self.active_view {
1563            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1564            _ => None,
1565        }
1566    }
1567
1568    pub(crate) fn delete_context(
1569        &mut self,
1570        path: Arc<Path>,
1571        cx: &mut Context<Self>,
1572    ) -> Task<Result<()>> {
1573        self.context_store
1574            .update(cx, |this, cx| this.delete_local_context(path, cx))
1575    }
1576
1577    fn set_active_view(
1578        &mut self,
1579        new_view: ActiveView,
1580        window: &mut Window,
1581        cx: &mut Context<Self>,
1582    ) {
1583        let current_is_history = matches!(self.active_view, ActiveView::History);
1584        let new_is_history = matches!(new_view, ActiveView::History);
1585
1586        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1587        let new_is_config = matches!(new_view, ActiveView::Configuration);
1588
1589        let current_is_special = current_is_history || current_is_config;
1590        let new_is_special = new_is_history || new_is_config;
1591
1592        match &self.active_view {
1593            ActiveView::Thread { thread, .. } => {
1594                let thread = thread.read(cx);
1595                if thread.is_empty() {
1596                    let id = thread.thread().read(cx).id().clone();
1597                    self.history_store.update(cx, |store, cx| {
1598                        store.remove_recently_opened_thread(id, cx);
1599                    });
1600                }
1601            }
1602            _ => {}
1603        }
1604
1605        match &new_view {
1606            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1607                let id = thread.read(cx).thread().read(cx).id().clone();
1608                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1609            }),
1610            ActiveView::TextThread { context_editor, .. } => {
1611                self.history_store.update(cx, |store, cx| {
1612                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1613                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1614                    }
1615                })
1616            }
1617            ActiveView::ExternalAgentThread { .. } => {}
1618            ActiveView::History | ActiveView::Configuration => {}
1619        }
1620
1621        if current_is_special && !new_is_special {
1622            self.active_view = new_view;
1623        } else if !current_is_special && new_is_special {
1624            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1625        } else {
1626            if !new_is_special {
1627                self.previous_view = None;
1628            }
1629            self.active_view = new_view;
1630        }
1631
1632        self.focus_handle(cx).focus(window);
1633    }
1634
1635    fn populate_recently_opened_menu_section_old(
1636        mut menu: ContextMenu,
1637        panel: Entity<Self>,
1638        cx: &mut Context<ContextMenu>,
1639    ) -> ContextMenu {
1640        let entries = panel
1641            .read(cx)
1642            .history_store
1643            .read(cx)
1644            .recently_opened_entries(cx);
1645
1646        if entries.is_empty() {
1647            return menu;
1648        }
1649
1650        menu = menu.header("Recently Opened");
1651
1652        for entry in entries {
1653            let title = entry.title().clone();
1654            let id = entry.id();
1655
1656            menu = menu.entry_with_end_slot_on_hover(
1657                title,
1658                None,
1659                {
1660                    let panel = panel.downgrade();
1661                    let id = id.clone();
1662                    move |window, cx| {
1663                        let id = id.clone();
1664                        panel
1665                            .update(cx, move |this, cx| match id {
1666                                HistoryEntryId::Thread(id) => this
1667                                    .open_thread_by_id(&id, window, cx)
1668                                    .detach_and_log_err(cx),
1669                                HistoryEntryId::Context(path) => this
1670                                    .open_saved_prompt_editor(path.clone(), window, cx)
1671                                    .detach_and_log_err(cx),
1672                            })
1673                            .ok();
1674                    }
1675                },
1676                IconName::Close,
1677                "Close Entry".into(),
1678                {
1679                    let panel = panel.downgrade();
1680                    let id = id.clone();
1681                    move |_window, cx| {
1682                        panel
1683                            .update(cx, |this, cx| {
1684                                this.history_store.update(cx, |history_store, cx| {
1685                                    history_store.remove_recently_opened_entry(&id, cx);
1686                                });
1687                            })
1688                            .ok();
1689                    }
1690                },
1691            );
1692        }
1693
1694        menu = menu.separator();
1695
1696        menu
1697    }
1698
1699    fn populate_recently_opened_menu_section_new(
1700        mut menu: ContextMenu,
1701        panel: Entity<Self>,
1702        cx: &mut Context<ContextMenu>,
1703    ) -> ContextMenu {
1704        let entries = panel
1705            .read(cx)
1706            .acp_history_store
1707            .read(cx)
1708            .recently_opened_entries(cx);
1709
1710        if entries.is_empty() {
1711            return menu;
1712        }
1713
1714        menu = menu.header("Recently Opened");
1715
1716        for entry in entries {
1717            let title = entry.title().clone();
1718
1719            menu = menu.entry_with_end_slot_on_hover(
1720                title,
1721                None,
1722                {
1723                    let panel = panel.downgrade();
1724                    let entry = entry.clone();
1725                    move |window, cx| {
1726                        let entry = entry.clone();
1727                        panel
1728                            .update(cx, move |this, cx| match &entry {
1729                                agent2::HistoryEntry::AcpThread(entry) => this.external_thread(
1730                                    Some(ExternalAgent::NativeAgent),
1731                                    Some(entry.clone()),
1732                                    window,
1733                                    cx,
1734                                ),
1735                                agent2::HistoryEntry::TextThread(entry) => this
1736                                    .open_saved_prompt_editor(entry.path.clone(), window, cx)
1737                                    .detach_and_log_err(cx),
1738                            })
1739                            .ok();
1740                    }
1741                },
1742                IconName::Close,
1743                "Close Entry".into(),
1744                {
1745                    let panel = panel.downgrade();
1746                    let id = entry.id();
1747                    move |_window, cx| {
1748                        panel
1749                            .update(cx, |this, cx| {
1750                                this.acp_history_store.update(cx, |history_store, cx| {
1751                                    history_store.remove_recently_opened_entry(&id, cx);
1752                                });
1753                            })
1754                            .ok();
1755                    }
1756                },
1757            );
1758        }
1759
1760        menu = menu.separator();
1761
1762        menu
1763    }
1764
1765    pub fn set_selected_agent(
1766        &mut self,
1767        agent: AgentType,
1768        window: &mut Window,
1769        cx: &mut Context<Self>,
1770    ) {
1771        if self.selected_agent != agent {
1772            self.selected_agent = agent;
1773            self.serialize(cx);
1774        }
1775        self.new_agent_thread(agent, window, cx);
1776    }
1777
1778    pub fn selected_agent(&self) -> AgentType {
1779        self.selected_agent
1780    }
1781
1782    pub fn new_agent_thread(
1783        &mut self,
1784        agent: AgentType,
1785        window: &mut Window,
1786        cx: &mut Context<Self>,
1787    ) {
1788        match agent {
1789            AgentType::Zed => {
1790                window.dispatch_action(
1791                    NewThread {
1792                        from_thread_id: None,
1793                    }
1794                    .boxed_clone(),
1795                    cx,
1796                );
1797            }
1798            AgentType::TextThread => {
1799                window.dispatch_action(NewTextThread.boxed_clone(), cx);
1800            }
1801            AgentType::NativeAgent => {
1802                self.external_thread(Some(crate::ExternalAgent::NativeAgent), None, window, cx)
1803            }
1804            AgentType::Gemini => {
1805                self.external_thread(Some(crate::ExternalAgent::Gemini), None, window, cx)
1806            }
1807            AgentType::ClaudeCode => {
1808                self.external_thread(Some(crate::ExternalAgent::ClaudeCode), None, window, cx)
1809            }
1810        }
1811    }
1812}
1813
1814impl Focusable for AgentPanel {
1815    fn focus_handle(&self, cx: &App) -> FocusHandle {
1816        match &self.active_view {
1817            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1818            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1819            ActiveView::History => {
1820                if cx.has_flag::<feature_flags::AcpFeatureFlag>() {
1821                    self.acp_history.focus_handle(cx)
1822                } else {
1823                    self.history.focus_handle(cx)
1824                }
1825            }
1826            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1827            ActiveView::Configuration => {
1828                if let Some(configuration) = self.configuration.as_ref() {
1829                    configuration.focus_handle(cx)
1830                } else {
1831                    cx.focus_handle()
1832                }
1833            }
1834        }
1835    }
1836}
1837
1838fn agent_panel_dock_position(cx: &App) -> DockPosition {
1839    match AgentSettings::get_global(cx).dock {
1840        AgentDockPosition::Left => DockPosition::Left,
1841        AgentDockPosition::Bottom => DockPosition::Bottom,
1842        AgentDockPosition::Right => DockPosition::Right,
1843    }
1844}
1845
1846impl EventEmitter<PanelEvent> for AgentPanel {}
1847
1848impl Panel for AgentPanel {
1849    fn persistent_name() -> &'static str {
1850        "AgentPanel"
1851    }
1852
1853    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1854        agent_panel_dock_position(cx)
1855    }
1856
1857    fn position_is_valid(&self, position: DockPosition) -> bool {
1858        position != DockPosition::Bottom
1859    }
1860
1861    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1862        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1863            let dock = match position {
1864                DockPosition::Left => AgentDockPosition::Left,
1865                DockPosition::Bottom => AgentDockPosition::Bottom,
1866                DockPosition::Right => AgentDockPosition::Right,
1867            };
1868            settings.set_dock(dock);
1869        });
1870    }
1871
1872    fn size(&self, window: &Window, cx: &App) -> Pixels {
1873        let settings = AgentSettings::get_global(cx);
1874        match self.position(window, cx) {
1875            DockPosition::Left | DockPosition::Right => {
1876                self.width.unwrap_or(settings.default_width)
1877            }
1878            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1879        }
1880    }
1881
1882    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1883        match self.position(window, cx) {
1884            DockPosition::Left | DockPosition::Right => self.width = size,
1885            DockPosition::Bottom => self.height = size,
1886        }
1887        self.serialize(cx);
1888        cx.notify();
1889    }
1890
1891    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1892
1893    fn remote_id() -> Option<proto::PanelId> {
1894        Some(proto::PanelId::AssistantPanel)
1895    }
1896
1897    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1898        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1899    }
1900
1901    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1902        Some("Agent Panel")
1903    }
1904
1905    fn toggle_action(&self) -> Box<dyn Action> {
1906        Box::new(ToggleFocus)
1907    }
1908
1909    fn activation_priority(&self) -> u32 {
1910        3
1911    }
1912
1913    fn enabled(&self, cx: &App) -> bool {
1914        DisableAiSettings::get_global(cx).disable_ai.not() && AgentSettings::get_global(cx).enabled
1915    }
1916
1917    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1918        self.zoomed
1919    }
1920
1921    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1922        self.zoomed = zoomed;
1923        cx.notify();
1924    }
1925}
1926
1927impl AgentPanel {
1928    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1929        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1930
1931        let content = match &self.active_view {
1932            ActiveView::Thread {
1933                thread: active_thread,
1934                change_title_editor,
1935                ..
1936            } => {
1937                let state = {
1938                    let active_thread = active_thread.read(cx);
1939                    if active_thread.is_empty() {
1940                        &ThreadSummary::Pending
1941                    } else {
1942                        active_thread.summary(cx)
1943                    }
1944                };
1945
1946                match state {
1947                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1948                        .truncate()
1949                        .into_any_element(),
1950                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1951                        .truncate()
1952                        .into_any_element(),
1953                    ThreadSummary::Ready(_) => div()
1954                        .w_full()
1955                        .child(change_title_editor.clone())
1956                        .into_any_element(),
1957                    ThreadSummary::Error => h_flex()
1958                        .w_full()
1959                        .child(change_title_editor.clone())
1960                        .child(
1961                            IconButton::new("retry-summary-generation", IconName::RotateCcw)
1962                                .icon_size(IconSize::Small)
1963                                .on_click({
1964                                    let active_thread = active_thread.clone();
1965                                    move |_, _window, cx| {
1966                                        active_thread.update(cx, |thread, cx| {
1967                                            thread.regenerate_summary(cx);
1968                                        });
1969                                    }
1970                                })
1971                                .tooltip(move |_window, cx| {
1972                                    cx.new(|_| {
1973                                        Tooltip::new("Failed to generate title")
1974                                            .meta("Click to try again")
1975                                    })
1976                                    .into()
1977                                }),
1978                        )
1979                        .into_any_element(),
1980                }
1981            }
1982            ActiveView::ExternalAgentThread { thread_view } => {
1983                Label::new(thread_view.read(cx).title(cx))
1984                    .truncate()
1985                    .into_any_element()
1986            }
1987            ActiveView::TextThread {
1988                title_editor,
1989                context_editor,
1990                ..
1991            } => {
1992                let summary = context_editor.read(cx).context().read(cx).summary();
1993
1994                match summary {
1995                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1996                        .truncate()
1997                        .into_any_element(),
1998                    ContextSummary::Content(summary) => {
1999                        if summary.done {
2000                            div()
2001                                .w_full()
2002                                .child(title_editor.clone())
2003                                .into_any_element()
2004                        } else {
2005                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
2006                                .truncate()
2007                                .into_any_element()
2008                        }
2009                    }
2010                    ContextSummary::Error => h_flex()
2011                        .w_full()
2012                        .child(title_editor.clone())
2013                        .child(
2014                            IconButton::new("retry-summary-generation", IconName::RotateCcw)
2015                                .icon_size(IconSize::Small)
2016                                .on_click({
2017                                    let context_editor = context_editor.clone();
2018                                    move |_, _window, cx| {
2019                                        context_editor.update(cx, |context_editor, cx| {
2020                                            context_editor.regenerate_summary(cx);
2021                                        });
2022                                    }
2023                                })
2024                                .tooltip(move |_window, cx| {
2025                                    cx.new(|_| {
2026                                        Tooltip::new("Failed to generate title")
2027                                            .meta("Click to try again")
2028                                    })
2029                                    .into()
2030                                }),
2031                        )
2032                        .into_any_element(),
2033                }
2034            }
2035            ActiveView::History => Label::new("History").truncate().into_any_element(),
2036            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
2037        };
2038
2039        h_flex()
2040            .key_context("TitleEditor")
2041            .id("TitleEditor")
2042            .flex_grow()
2043            .w_full()
2044            .max_w_full()
2045            .overflow_x_scroll()
2046            .child(content)
2047            .into_any()
2048    }
2049
2050    fn render_panel_options_menu(
2051        &self,
2052        window: &mut Window,
2053        cx: &mut Context<Self>,
2054    ) -> impl IntoElement {
2055        let user_store = self.user_store.read(cx);
2056        let usage = user_store.model_request_usage();
2057        let account_url = zed_urls::account_url(cx);
2058
2059        let focus_handle = self.focus_handle(cx);
2060
2061        let full_screen_label = if self.is_zoomed(window, cx) {
2062            "Disable Full Screen"
2063        } else {
2064            "Enable Full Screen"
2065        };
2066
2067        PopoverMenu::new("agent-options-menu")
2068            .trigger_with_tooltip(
2069                IconButton::new("agent-options-menu", IconName::Ellipsis)
2070                    .icon_size(IconSize::Small),
2071                {
2072                    let focus_handle = focus_handle.clone();
2073                    move |window, cx| {
2074                        Tooltip::for_action_in(
2075                            "Toggle Agent Menu",
2076                            &ToggleOptionsMenu,
2077                            &focus_handle,
2078                            window,
2079                            cx,
2080                        )
2081                    }
2082                },
2083            )
2084            .anchor(Corner::TopRight)
2085            .with_handle(self.agent_panel_menu_handle.clone())
2086            .menu({
2087                let focus_handle = focus_handle.clone();
2088                move |window, cx| {
2089                    Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2090                        menu = menu.context(focus_handle.clone());
2091                        if let Some(usage) = usage {
2092                            menu = menu
2093                                .header_with_link("Prompt Usage", "Manage", account_url.clone())
2094                                .custom_entry(
2095                                    move |_window, cx| {
2096                                        let used_percentage = match usage.limit {
2097                                            UsageLimit::Limited(limit) => {
2098                                                Some((usage.amount as f32 / limit as f32) * 100.)
2099                                            }
2100                                            UsageLimit::Unlimited => None,
2101                                        };
2102
2103                                        h_flex()
2104                                            .flex_1()
2105                                            .gap_1p5()
2106                                            .children(used_percentage.map(|percent| {
2107                                                ProgressBar::new("usage", percent, 100., cx)
2108                                            }))
2109                                            .child(
2110                                                Label::new(match usage.limit {
2111                                                    UsageLimit::Limited(limit) => {
2112                                                        format!("{} / {limit}", usage.amount)
2113                                                    }
2114                                                    UsageLimit::Unlimited => {
2115                                                        format!("{} / ∞", usage.amount)
2116                                                    }
2117                                                })
2118                                                .size(LabelSize::Small)
2119                                                .color(Color::Muted),
2120                                            )
2121                                            .into_any_element()
2122                                    },
2123                                    move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2124                                )
2125                                .separator()
2126                        }
2127
2128                        menu = menu
2129                            .header("MCP Servers")
2130                            .action(
2131                                "View Server Extensions",
2132                                Box::new(zed_actions::Extensions {
2133                                    category_filter: Some(
2134                                        zed_actions::ExtensionCategoryFilter::ContextServers,
2135                                    ),
2136                                    id: None,
2137                                }),
2138                            )
2139                            .action("Add Custom Server…", Box::new(AddContextServer))
2140                            .separator();
2141
2142                        menu = menu
2143                            .action("Rules…", Box::new(OpenRulesLibrary::default()))
2144                            .action("Settings", Box::new(OpenSettings))
2145                            .separator()
2146                            .action(full_screen_label, Box::new(ToggleZoom));
2147                        menu
2148                    }))
2149                }
2150            })
2151    }
2152
2153    fn render_recent_entries_menu(&self, cx: &mut Context<Self>) -> impl IntoElement {
2154        let focus_handle = self.focus_handle(cx);
2155
2156        PopoverMenu::new("agent-nav-menu")
2157            .trigger_with_tooltip(
2158                IconButton::new("agent-nav-menu", IconName::MenuAlt).icon_size(IconSize::Small),
2159                {
2160                    let focus_handle = focus_handle.clone();
2161                    move |window, cx| {
2162                        Tooltip::for_action_in(
2163                            "Toggle Recent Threads",
2164                            &ToggleNavigationMenu,
2165                            &focus_handle,
2166                            window,
2167                            cx,
2168                        )
2169                    }
2170                },
2171            )
2172            .anchor(Corner::TopLeft)
2173            .with_handle(self.assistant_navigation_menu_handle.clone())
2174            .menu({
2175                let menu = self.assistant_navigation_menu.clone();
2176                move |window, cx| {
2177                    if let Some(menu) = menu.as_ref() {
2178                        menu.update(cx, |_, cx| {
2179                            cx.defer_in(window, |menu, window, cx| {
2180                                menu.rebuild(window, cx);
2181                            });
2182                        })
2183                    }
2184                    menu.clone()
2185                }
2186            })
2187    }
2188
2189    fn render_toolbar_back_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
2190        let focus_handle = self.focus_handle(cx);
2191
2192        IconButton::new("go-back", IconName::ArrowLeft)
2193            .icon_size(IconSize::Small)
2194            .on_click(cx.listener(|this, _, window, cx| {
2195                this.go_back(&workspace::GoBack, window, cx);
2196            }))
2197            .tooltip({
2198                let focus_handle = focus_handle.clone();
2199
2200                move |window, cx| {
2201                    Tooltip::for_action_in("Go Back", &workspace::GoBack, &focus_handle, window, cx)
2202                }
2203            })
2204    }
2205
2206    fn render_toolbar_old(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2207        let focus_handle = self.focus_handle(cx);
2208
2209        let active_thread = match &self.active_view {
2210            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2211            ActiveView::ExternalAgentThread { .. }
2212            | ActiveView::TextThread { .. }
2213            | ActiveView::History
2214            | ActiveView::Configuration => None,
2215        };
2216
2217        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2218            .trigger_with_tooltip(
2219                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2220                Tooltip::text("New Thread…"),
2221            )
2222            .anchor(Corner::TopRight)
2223            .with_handle(self.new_thread_menu_handle.clone())
2224            .menu({
2225                let focus_handle = focus_handle.clone();
2226                move |window, cx| {
2227                    let active_thread = active_thread.clone();
2228                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2229                        menu = menu
2230                            .context(focus_handle.clone())
2231                            .when_some(active_thread, |this, active_thread| {
2232                                let thread = active_thread.read(cx);
2233
2234                                if !thread.is_empty() {
2235                                    let thread_id = thread.id().clone();
2236                                    this.item(
2237                                        ContextMenuEntry::new("New From Summary")
2238                                            .icon(IconName::ThreadFromSummary)
2239                                            .icon_color(Color::Muted)
2240                                            .handler(move |window, cx| {
2241                                                window.dispatch_action(
2242                                                    Box::new(NewThread {
2243                                                        from_thread_id: Some(thread_id.clone()),
2244                                                    }),
2245                                                    cx,
2246                                                );
2247                                            }),
2248                                    )
2249                                } else {
2250                                    this
2251                                }
2252                            })
2253                            .item(
2254                                ContextMenuEntry::new("New Thread")
2255                                    .icon(IconName::Thread)
2256                                    .icon_color(Color::Muted)
2257                                    .action(NewThread::default().boxed_clone())
2258                                    .handler(move |window, cx| {
2259                                        window.dispatch_action(
2260                                            NewThread::default().boxed_clone(),
2261                                            cx,
2262                                        );
2263                                    }),
2264                            )
2265                            .item(
2266                                ContextMenuEntry::new("New Text Thread")
2267                                    .icon(IconName::TextThread)
2268                                    .icon_color(Color::Muted)
2269                                    .action(NewTextThread.boxed_clone())
2270                                    .handler(move |window, cx| {
2271                                        window.dispatch_action(NewTextThread.boxed_clone(), cx);
2272                                    }),
2273                            );
2274                        menu
2275                    }))
2276                }
2277            });
2278
2279        h_flex()
2280            .id("assistant-toolbar")
2281            .h(Tab::container_height(cx))
2282            .max_w_full()
2283            .flex_none()
2284            .justify_between()
2285            .gap_2()
2286            .bg(cx.theme().colors().tab_bar_background)
2287            .border_b_1()
2288            .border_color(cx.theme().colors().border)
2289            .child(
2290                h_flex()
2291                    .size_full()
2292                    .pl_1()
2293                    .gap_1()
2294                    .child(match &self.active_view {
2295                        ActiveView::History | ActiveView::Configuration => div()
2296                            .pl(DynamicSpacing::Base04.rems(cx))
2297                            .child(self.render_toolbar_back_button(cx))
2298                            .into_any_element(),
2299                        _ => self.render_recent_entries_menu(cx).into_any_element(),
2300                    })
2301                    .child(self.render_title_view(window, cx)),
2302            )
2303            .child(
2304                h_flex()
2305                    .h_full()
2306                    .gap_2()
2307                    .children(self.render_token_count(cx))
2308                    .child(
2309                        h_flex()
2310                            .h_full()
2311                            .gap(DynamicSpacing::Base02.rems(cx))
2312                            .px(DynamicSpacing::Base08.rems(cx))
2313                            .border_l_1()
2314                            .border_color(cx.theme().colors().border)
2315                            .child(new_thread_menu)
2316                            .child(self.render_panel_options_menu(window, cx)),
2317                    ),
2318            )
2319    }
2320
2321    fn render_toolbar_new(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2322        let focus_handle = self.focus_handle(cx);
2323
2324        let active_thread = match &self.active_view {
2325            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2326            ActiveView::ExternalAgentThread { .. }
2327            | ActiveView::TextThread { .. }
2328            | ActiveView::History
2329            | ActiveView::Configuration => None,
2330        };
2331
2332        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2333            .trigger_with_tooltip(
2334                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2335                {
2336                    let focus_handle = focus_handle.clone();
2337                    move |window, cx| {
2338                        Tooltip::for_action_in(
2339                            "New…",
2340                            &ToggleNewThreadMenu,
2341                            &focus_handle,
2342                            window,
2343                            cx,
2344                        )
2345                    }
2346                },
2347            )
2348            .anchor(Corner::TopLeft)
2349            .with_handle(self.new_thread_menu_handle.clone())
2350            .menu({
2351                let focus_handle = focus_handle.clone();
2352                let workspace = self.workspace.clone();
2353
2354                move |window, cx| {
2355                    let active_thread = active_thread.clone();
2356                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2357                        menu = menu
2358                            .context(focus_handle.clone())
2359                            .header("Zed Agent")
2360                            .when_some(active_thread, |this, active_thread| {
2361                                let thread = active_thread.read(cx);
2362
2363                                if !thread.is_empty() {
2364                                    let thread_id = thread.id().clone();
2365                                    this.item(
2366                                        ContextMenuEntry::new("New From Summary")
2367                                            .icon(IconName::ThreadFromSummary)
2368                                            .icon_color(Color::Muted)
2369                                            .handler(move |window, cx| {
2370                                                window.dispatch_action(
2371                                                    Box::new(NewThread {
2372                                                        from_thread_id: Some(thread_id.clone()),
2373                                                    }),
2374                                                    cx,
2375                                                );
2376                                            }),
2377                                    )
2378                                } else {
2379                                    this
2380                                }
2381                            })
2382                            .item(
2383                                ContextMenuEntry::new("New Thread")
2384                                    .icon(IconName::Thread)
2385                                    .icon_color(Color::Muted)
2386                                    .action(NewThread::default().boxed_clone())
2387                                    .handler({
2388                                        let workspace = workspace.clone();
2389                                        move |window, cx| {
2390                                            if let Some(workspace) = workspace.upgrade() {
2391                                                workspace.update(cx, |workspace, cx| {
2392                                                    if let Some(panel) =
2393                                                        workspace.panel::<AgentPanel>(cx)
2394                                                    {
2395                                                        panel.update(cx, |panel, cx| {
2396                                                            panel.set_selected_agent(
2397                                                                AgentType::Zed,
2398                                                                window,
2399                                                                cx,
2400                                                            );
2401                                                        });
2402                                                    }
2403                                                });
2404                                            }
2405                                        }
2406                                    }),
2407                            )
2408                            .item(
2409                                ContextMenuEntry::new("New Text Thread")
2410                                    .icon(IconName::TextThread)
2411                                    .icon_color(Color::Muted)
2412                                    .action(NewTextThread.boxed_clone())
2413                                    .handler({
2414                                        let workspace = workspace.clone();
2415                                        move |window, cx| {
2416                                            if let Some(workspace) = workspace.upgrade() {
2417                                                workspace.update(cx, |workspace, cx| {
2418                                                    if let Some(panel) =
2419                                                        workspace.panel::<AgentPanel>(cx)
2420                                                    {
2421                                                        panel.update(cx, |panel, cx| {
2422                                                            panel.set_selected_agent(
2423                                                                AgentType::TextThread,
2424                                                                window,
2425                                                                cx,
2426                                                            );
2427                                                        });
2428                                                    }
2429                                                });
2430                                            }
2431                                        }
2432                                    }),
2433                            )
2434                            .item(
2435                                ContextMenuEntry::new("New Native Agent Thread")
2436                                    .icon(IconName::ZedAssistant)
2437                                    .icon_color(Color::Muted)
2438                                    .handler({
2439                                        let workspace = workspace.clone();
2440                                        move |window, cx| {
2441                                            if let Some(workspace) = workspace.upgrade() {
2442                                                workspace.update(cx, |workspace, cx| {
2443                                                    if let Some(panel) =
2444                                                        workspace.panel::<AgentPanel>(cx)
2445                                                    {
2446                                                        panel.update(cx, |panel, cx| {
2447                                                            panel.set_selected_agent(
2448                                                                AgentType::NativeAgent,
2449                                                                window,
2450                                                                cx,
2451                                                            );
2452                                                        });
2453                                                    }
2454                                                });
2455                                            }
2456                                        }
2457                                    }),
2458                            )
2459                            .separator()
2460                            .header("External Agents")
2461                            .when(cx.has_flag::<AcpFeatureFlag>(), |menu| {
2462                                menu.item(
2463                                    ContextMenuEntry::new("New Gemini Thread")
2464                                        .icon(IconName::AiGemini)
2465                                        .icon_color(Color::Muted)
2466                                        .handler({
2467                                            let workspace = workspace.clone();
2468                                            move |window, cx| {
2469                                                if let Some(workspace) = workspace.upgrade() {
2470                                                    workspace.update(cx, |workspace, cx| {
2471                                                        if let Some(panel) =
2472                                                            workspace.panel::<AgentPanel>(cx)
2473                                                        {
2474                                                            panel.update(cx, |panel, cx| {
2475                                                                panel.set_selected_agent(
2476                                                                    AgentType::Gemini,
2477                                                                    window,
2478                                                                    cx,
2479                                                                );
2480                                                            });
2481                                                        }
2482                                                    });
2483                                                }
2484                                            }
2485                                        }),
2486                                )
2487                            })
2488                            .when(cx.has_flag::<ClaudeCodeFeatureFlag>(), |menu| {
2489                                menu.item(
2490                                    ContextMenuEntry::new("New Claude Code Thread")
2491                                        .icon(IconName::AiClaude)
2492                                        .icon_color(Color::Muted)
2493                                        .handler({
2494                                            let workspace = workspace.clone();
2495                                            move |window, cx| {
2496                                                if let Some(workspace) = workspace.upgrade() {
2497                                                    workspace.update(cx, |workspace, cx| {
2498                                                        if let Some(panel) =
2499                                                            workspace.panel::<AgentPanel>(cx)
2500                                                        {
2501                                                            panel.update(cx, |panel, cx| {
2502                                                                panel.set_selected_agent(
2503                                                                    AgentType::ClaudeCode,
2504                                                                    window,
2505                                                                    cx,
2506                                                                );
2507                                                            });
2508                                                        }
2509                                                    });
2510                                                }
2511                                            }
2512                                        }),
2513                                )
2514                            });
2515                        menu
2516                    }))
2517                }
2518            });
2519
2520        let selected_agent_label = self.selected_agent.label().into();
2521        let selected_agent = div()
2522            .id("selected_agent_icon")
2523            .px(DynamicSpacing::Base02.rems(cx))
2524            .child(Icon::new(self.selected_agent.icon()).color(Color::Muted))
2525            .tooltip(move |window, cx| {
2526                Tooltip::with_meta(
2527                    selected_agent_label.clone(),
2528                    None,
2529                    "Selected Agent",
2530                    window,
2531                    cx,
2532                )
2533            })
2534            .into_any_element();
2535
2536        h_flex()
2537            .id("agent-panel-toolbar")
2538            .h(Tab::container_height(cx))
2539            .max_w_full()
2540            .flex_none()
2541            .justify_between()
2542            .gap_2()
2543            .bg(cx.theme().colors().tab_bar_background)
2544            .border_b_1()
2545            .border_color(cx.theme().colors().border)
2546            .child(
2547                h_flex()
2548                    .size_full()
2549                    .gap(DynamicSpacing::Base04.rems(cx))
2550                    .pl(DynamicSpacing::Base04.rems(cx))
2551                    .child(match &self.active_view {
2552                        ActiveView::History | ActiveView::Configuration => {
2553                            self.render_toolbar_back_button(cx).into_any_element()
2554                        }
2555                        _ => h_flex()
2556                            .gap_1()
2557                            .child(self.render_recent_entries_menu(cx))
2558                            .child(Divider::vertical())
2559                            .child(selected_agent)
2560                            .into_any_element(),
2561                    })
2562                    .child(self.render_title_view(window, cx)),
2563            )
2564            .child(
2565                h_flex()
2566                    .h_full()
2567                    .gap_2()
2568                    .children(self.render_token_count(cx))
2569                    .child(
2570                        h_flex()
2571                            .h_full()
2572                            .gap(DynamicSpacing::Base02.rems(cx))
2573                            .pl(DynamicSpacing::Base04.rems(cx))
2574                            .pr(DynamicSpacing::Base06.rems(cx))
2575                            .border_l_1()
2576                            .border_color(cx.theme().colors().border)
2577                            .child(new_thread_menu)
2578                            .child(self.render_panel_options_menu(window, cx)),
2579                    ),
2580            )
2581    }
2582
2583    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2584        if cx.has_flag::<feature_flags::AcpFeatureFlag>()
2585            || cx.has_flag::<feature_flags::ClaudeCodeFeatureFlag>()
2586        {
2587            self.render_toolbar_new(window, cx).into_any_element()
2588        } else {
2589            self.render_toolbar_old(window, cx).into_any_element()
2590        }
2591    }
2592
2593    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2594        match &self.active_view {
2595            ActiveView::Thread {
2596                thread,
2597                message_editor,
2598                ..
2599            } => {
2600                let active_thread = thread.read(cx);
2601                let message_editor = message_editor.read(cx);
2602
2603                let editor_empty = message_editor.is_editor_fully_empty(cx);
2604
2605                if active_thread.is_empty() && editor_empty {
2606                    return None;
2607                }
2608
2609                let thread = active_thread.thread().read(cx);
2610                let is_generating = thread.is_generating();
2611                let conversation_token_usage = thread.total_token_usage()?;
2612
2613                let (total_token_usage, is_estimating) =
2614                    if let Some((editing_message_id, unsent_tokens)) =
2615                        active_thread.editing_message_id()
2616                    {
2617                        let combined = thread
2618                            .token_usage_up_to_message(editing_message_id)
2619                            .add(unsent_tokens);
2620
2621                        (combined, unsent_tokens > 0)
2622                    } else {
2623                        let unsent_tokens =
2624                            message_editor.last_estimated_token_count().unwrap_or(0);
2625                        let combined = conversation_token_usage.add(unsent_tokens);
2626
2627                        (combined, unsent_tokens > 0)
2628                    };
2629
2630                let is_waiting_to_update_token_count =
2631                    message_editor.is_waiting_to_update_token_count();
2632
2633                if total_token_usage.total == 0 {
2634                    return None;
2635                }
2636
2637                let token_color = match total_token_usage.ratio() {
2638                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2639                    TokenUsageRatio::Normal => Color::Muted,
2640                    TokenUsageRatio::Warning => Color::Warning,
2641                    TokenUsageRatio::Exceeded => Color::Error,
2642                };
2643
2644                let token_count = h_flex()
2645                    .id("token-count")
2646                    .flex_shrink_0()
2647                    .gap_0p5()
2648                    .when(!is_generating && is_estimating, |parent| {
2649                        parent
2650                            .child(
2651                                h_flex()
2652                                    .mr_1()
2653                                    .size_2p5()
2654                                    .justify_center()
2655                                    .rounded_full()
2656                                    .bg(cx.theme().colors().text.opacity(0.1))
2657                                    .child(
2658                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2659                                    ),
2660                            )
2661                            .tooltip(move |window, cx| {
2662                                Tooltip::with_meta(
2663                                    "Estimated New Token Count",
2664                                    None,
2665                                    format!(
2666                                        "Current Conversation Tokens: {}",
2667                                        humanize_token_count(conversation_token_usage.total)
2668                                    ),
2669                                    window,
2670                                    cx,
2671                                )
2672                            })
2673                    })
2674                    .child(
2675                        Label::new(humanize_token_count(total_token_usage.total))
2676                            .size(LabelSize::Small)
2677                            .color(token_color)
2678                            .map(|label| {
2679                                if is_generating || is_waiting_to_update_token_count {
2680                                    label
2681                                        .with_animation(
2682                                            "used-tokens-label",
2683                                            Animation::new(Duration::from_secs(2))
2684                                                .repeat()
2685                                                .with_easing(pulsating_between(0.6, 1.)),
2686                                            |label, delta| label.alpha(delta),
2687                                        )
2688                                        .into_any()
2689                                } else {
2690                                    label.into_any_element()
2691                                }
2692                            }),
2693                    )
2694                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2695                    .child(
2696                        Label::new(humanize_token_count(total_token_usage.max))
2697                            .size(LabelSize::Small)
2698                            .color(Color::Muted),
2699                    )
2700                    .into_any();
2701
2702                Some(token_count)
2703            }
2704            ActiveView::TextThread { context_editor, .. } => {
2705                let element = render_remaining_tokens(context_editor, cx)?;
2706
2707                Some(element.into_any_element())
2708            }
2709            ActiveView::ExternalAgentThread { .. }
2710            | ActiveView::History
2711            | ActiveView::Configuration => None,
2712        }
2713    }
2714
2715    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2716        if TrialEndUpsell::dismissed() {
2717            return false;
2718        }
2719
2720        match &self.active_view {
2721            ActiveView::Thread { thread, .. } => {
2722                if thread
2723                    .read(cx)
2724                    .thread()
2725                    .read(cx)
2726                    .configured_model()
2727                    .is_some_and(|model| {
2728                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2729                    })
2730                {
2731                    return false;
2732                }
2733            }
2734            ActiveView::TextThread { .. } => {
2735                if LanguageModelRegistry::global(cx)
2736                    .read(cx)
2737                    .default_model()
2738                    .is_some_and(|model| {
2739                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2740                    })
2741                {
2742                    return false;
2743                }
2744            }
2745            ActiveView::ExternalAgentThread { .. }
2746            | ActiveView::History
2747            | ActiveView::Configuration => return false,
2748        }
2749
2750        let plan = self.user_store.read(cx).plan();
2751        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2752
2753        matches!(plan, Some(Plan::ZedFree)) && has_previous_trial
2754    }
2755
2756    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2757        if OnboardingUpsell::dismissed() {
2758            return false;
2759        }
2760
2761        match &self.active_view {
2762            ActiveView::History | ActiveView::Configuration => false,
2763            ActiveView::ExternalAgentThread { thread_view, .. }
2764                if thread_view.read(cx).as_native_thread(cx).is_none() =>
2765            {
2766                false
2767            }
2768            _ => {
2769                let history_is_empty = self
2770                    .history_store
2771                    .update(cx, |store, cx| store.recent_entries(1, cx).is_empty());
2772
2773                let has_configured_non_zed_providers = LanguageModelRegistry::read_global(cx)
2774                    .providers()
2775                    .iter()
2776                    .any(|provider| {
2777                        provider.is_authenticated(cx)
2778                            && provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2779                    });
2780
2781                history_is_empty || !has_configured_non_zed_providers
2782            }
2783        }
2784    }
2785
2786    fn render_onboarding(
2787        &self,
2788        _window: &mut Window,
2789        cx: &mut Context<Self>,
2790    ) -> Option<impl IntoElement> {
2791        if !self.should_render_onboarding(cx) {
2792            return None;
2793        }
2794
2795        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2796        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2797
2798        Some(
2799            div()
2800                .when(thread_view, |this| {
2801                    this.size_full().bg(cx.theme().colors().panel_background)
2802                })
2803                .when(text_thread_view, |this| {
2804                    this.bg(cx.theme().colors().editor_background)
2805                })
2806                .child(self.onboarding.clone()),
2807        )
2808    }
2809
2810    fn render_backdrop(&self, cx: &mut Context<Self>) -> impl IntoElement {
2811        div()
2812            .size_full()
2813            .absolute()
2814            .inset_0()
2815            .bg(cx.theme().colors().panel_background)
2816            .opacity(0.8)
2817            .block_mouse_except_scroll()
2818    }
2819
2820    fn render_trial_end_upsell(
2821        &self,
2822        _window: &mut Window,
2823        cx: &mut Context<Self>,
2824    ) -> Option<impl IntoElement> {
2825        if !self.should_render_trial_end_upsell(cx) {
2826            return None;
2827        }
2828
2829        Some(
2830            v_flex()
2831                .absolute()
2832                .inset_0()
2833                .size_full()
2834                .bg(cx.theme().colors().panel_background)
2835                .opacity(0.85)
2836                .block_mouse_except_scroll()
2837                .child(EndTrialUpsell::new(Arc::new({
2838                    let this = cx.entity();
2839                    move |_, cx| {
2840                        this.update(cx, |_this, cx| {
2841                            TrialEndUpsell::set_dismissed(true, cx);
2842                            cx.notify();
2843                        });
2844                    }
2845                }))),
2846        )
2847    }
2848
2849    fn render_empty_state_section_header(
2850        &self,
2851        label: impl Into<SharedString>,
2852        action_slot: Option<AnyElement>,
2853        cx: &mut Context<Self>,
2854    ) -> impl IntoElement {
2855        div().pl_1().pr_1p5().child(
2856            h_flex()
2857                .mt_2()
2858                .pl_1p5()
2859                .pb_1()
2860                .w_full()
2861                .justify_between()
2862                .border_b_1()
2863                .border_color(cx.theme().colors().border_variant)
2864                .child(
2865                    Label::new(label.into())
2866                        .size(LabelSize::Small)
2867                        .color(Color::Muted),
2868                )
2869                .children(action_slot),
2870        )
2871    }
2872
2873    fn render_thread_empty_state(
2874        &self,
2875        window: &mut Window,
2876        cx: &mut Context<Self>,
2877    ) -> impl IntoElement {
2878        let recent_history = self
2879            .history_store
2880            .update(cx, |this, cx| this.recent_entries(6, cx));
2881
2882        let model_registry = LanguageModelRegistry::read_global(cx);
2883
2884        let configuration_error =
2885            model_registry.configuration_error(model_registry.default_model(), cx);
2886
2887        let no_error = configuration_error.is_none();
2888        let focus_handle = self.focus_handle(cx);
2889
2890        v_flex()
2891            .size_full()
2892            .bg(cx.theme().colors().panel_background)
2893            .when(recent_history.is_empty(), |this| {
2894                this.child(
2895                    v_flex()
2896                        .size_full()
2897                        .mx_auto()
2898                        .justify_center()
2899                        .items_center()
2900                        .gap_1()
2901                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2902                        .when(no_error, |parent| {
2903                            parent
2904                                .child(h_flex().child(
2905                                    Label::new("Ask and build anything.").color(Color::Muted),
2906                                ))
2907                                .child(
2908                                    v_flex()
2909                                        .mt_2()
2910                                        .gap_1()
2911                                        .max_w_48()
2912                                        .child(
2913                                            Button::new("context", "Add Context")
2914                                                .label_size(LabelSize::Small)
2915                                                .icon(IconName::FileCode)
2916                                                .icon_position(IconPosition::Start)
2917                                                .icon_size(IconSize::Small)
2918                                                .icon_color(Color::Muted)
2919                                                .full_width()
2920                                                .key_binding(KeyBinding::for_action_in(
2921                                                    &ToggleContextPicker,
2922                                                    &focus_handle,
2923                                                    window,
2924                                                    cx,
2925                                                ))
2926                                                .on_click(|_event, window, cx| {
2927                                                    window.dispatch_action(
2928                                                        ToggleContextPicker.boxed_clone(),
2929                                                        cx,
2930                                                    )
2931                                                }),
2932                                        )
2933                                        .child(
2934                                            Button::new("mode", "Switch Model")
2935                                                .label_size(LabelSize::Small)
2936                                                .icon(IconName::DatabaseZap)
2937                                                .icon_position(IconPosition::Start)
2938                                                .icon_size(IconSize::Small)
2939                                                .icon_color(Color::Muted)
2940                                                .full_width()
2941                                                .key_binding(KeyBinding::for_action_in(
2942                                                    &ToggleModelSelector,
2943                                                    &focus_handle,
2944                                                    window,
2945                                                    cx,
2946                                                ))
2947                                                .on_click(|_event, window, cx| {
2948                                                    window.dispatch_action(
2949                                                        ToggleModelSelector.boxed_clone(),
2950                                                        cx,
2951                                                    )
2952                                                }),
2953                                        )
2954                                        .child(
2955                                            Button::new("settings", "View Settings")
2956                                                .label_size(LabelSize::Small)
2957                                                .icon(IconName::Settings)
2958                                                .icon_position(IconPosition::Start)
2959                                                .icon_size(IconSize::Small)
2960                                                .icon_color(Color::Muted)
2961                                                .full_width()
2962                                                .key_binding(KeyBinding::for_action_in(
2963                                                    &OpenSettings,
2964                                                    &focus_handle,
2965                                                    window,
2966                                                    cx,
2967                                                ))
2968                                                .on_click(|_event, window, cx| {
2969                                                    window.dispatch_action(
2970                                                        OpenSettings.boxed_clone(),
2971                                                        cx,
2972                                                    )
2973                                                }),
2974                                        ),
2975                                )
2976                        }),
2977                )
2978            })
2979            .when(!recent_history.is_empty(), |parent| {
2980                parent
2981                    .overflow_hidden()
2982                    .justify_end()
2983                    .gap_1()
2984                    .child(
2985                        self.render_empty_state_section_header(
2986                            "Recent",
2987                            Some(
2988                                Button::new("view-history", "View All")
2989                                    .style(ButtonStyle::Subtle)
2990                                    .label_size(LabelSize::Small)
2991                                    .key_binding(
2992                                        KeyBinding::for_action_in(
2993                                            &OpenHistory,
2994                                            &self.focus_handle(cx),
2995                                            window,
2996                                            cx,
2997                                        )
2998                                        .map(|kb| kb.size(rems_from_px(12.))),
2999                                    )
3000                                    .on_click(move |_event, window, cx| {
3001                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
3002                                    })
3003                                    .into_any_element(),
3004                            ),
3005                            cx,
3006                        ),
3007                    )
3008                    .child(
3009                        v_flex().p_1().pr_1p5().gap_1().children(
3010                            recent_history
3011                                .into_iter()
3012                                .enumerate()
3013                                .map(|(index, entry)| {
3014                                    // TODO: Add keyboard navigation.
3015                                    let is_hovered =
3016                                        self.hovered_recent_history_item == Some(index);
3017                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
3018                                        .hovered(is_hovered)
3019                                        .on_hover(cx.listener(
3020                                            move |this, is_hovered, _window, cx| {
3021                                                if *is_hovered {
3022                                                    this.hovered_recent_history_item = Some(index);
3023                                                } else if this.hovered_recent_history_item
3024                                                    == Some(index)
3025                                                {
3026                                                    this.hovered_recent_history_item = None;
3027                                                }
3028                                                cx.notify();
3029                                            },
3030                                        ))
3031                                        .into_any_element()
3032                                }),
3033                        ),
3034                    )
3035            })
3036            .when_some(configuration_error.as_ref(), |this, err| {
3037                this.child(self.render_configuration_error(false, err, &focus_handle, window, cx))
3038            })
3039    }
3040
3041    fn render_configuration_error(
3042        &self,
3043        border_bottom: bool,
3044        configuration_error: &ConfigurationError,
3045        focus_handle: &FocusHandle,
3046        window: &mut Window,
3047        cx: &mut App,
3048    ) -> impl IntoElement {
3049        let zed_provider_configured = AgentSettings::get_global(cx)
3050            .default_model
3051            .as_ref()
3052            .is_some_and(|selection| selection.provider.0.as_str() == "zed.dev");
3053
3054        let callout = if zed_provider_configured {
3055            Callout::new()
3056                .icon(IconName::Warning)
3057                .severity(Severity::Warning)
3058                .when(border_bottom, |this| {
3059                    this.border_position(ui::BorderPosition::Bottom)
3060                })
3061                .title("Sign in to continue using Zed as your LLM provider.")
3062                .actions_slot(
3063                    Button::new("sign_in", "Sign In")
3064                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
3065                        .label_size(LabelSize::Small)
3066                        .on_click({
3067                            let workspace = self.workspace.clone();
3068                            move |_, _, cx| {
3069                                let Ok(client) =
3070                                    workspace.update(cx, |workspace, _| workspace.client().clone())
3071                                else {
3072                                    return;
3073                                };
3074
3075                                cx.spawn(async move |cx| {
3076                                    client.sign_in_with_optional_connect(true, cx).await
3077                                })
3078                                .detach_and_log_err(cx);
3079                            }
3080                        }),
3081                )
3082        } else {
3083            Callout::new()
3084                .icon(IconName::Warning)
3085                .severity(Severity::Warning)
3086                .when(border_bottom, |this| {
3087                    this.border_position(ui::BorderPosition::Bottom)
3088                })
3089                .title(configuration_error.to_string())
3090                .actions_slot(
3091                    Button::new("settings", "Configure")
3092                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
3093                        .label_size(LabelSize::Small)
3094                        .key_binding(
3095                            KeyBinding::for_action_in(&OpenSettings, focus_handle, window, cx)
3096                                .map(|kb| kb.size(rems_from_px(12.))),
3097                        )
3098                        .on_click(|_event, window, cx| {
3099                            window.dispatch_action(OpenSettings.boxed_clone(), cx)
3100                        }),
3101                )
3102        };
3103
3104        match configuration_error {
3105            ConfigurationError::ModelNotFound
3106            | ConfigurationError::ProviderNotAuthenticated(_)
3107            | ConfigurationError::NoProvider => callout.into_any_element(),
3108            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
3109                Banner::new()
3110                    .severity(Severity::Warning)
3111                    .child(h_flex().w_full().children(
3112                        provider.render_accept_terms(
3113                            LanguageModelProviderTosView::ThreadEmptyState,
3114                            cx,
3115                        ),
3116                    ))
3117                    .into_any_element()
3118            }
3119        }
3120    }
3121
3122    fn render_tool_use_limit_reached(
3123        &self,
3124        window: &mut Window,
3125        cx: &mut Context<Self>,
3126    ) -> Option<AnyElement> {
3127        let active_thread = match &self.active_view {
3128            ActiveView::Thread { thread, .. } => thread,
3129            ActiveView::ExternalAgentThread { .. } => {
3130                return None;
3131            }
3132            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
3133                return None;
3134            }
3135        };
3136
3137        let thread = active_thread.read(cx).thread().read(cx);
3138
3139        let tool_use_limit_reached = thread.tool_use_limit_reached();
3140        if !tool_use_limit_reached {
3141            return None;
3142        }
3143
3144        let model = thread.configured_model()?.model;
3145
3146        let focus_handle = self.focus_handle(cx);
3147
3148        let banner = Banner::new()
3149            .severity(Severity::Info)
3150            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
3151            .action_slot(
3152                h_flex()
3153                    .gap_1()
3154                    .child(
3155                        Button::new("continue-conversation", "Continue")
3156                            .layer(ElevationIndex::ModalSurface)
3157                            .label_size(LabelSize::Small)
3158                            .key_binding(
3159                                KeyBinding::for_action_in(
3160                                    &ContinueThread,
3161                                    &focus_handle,
3162                                    window,
3163                                    cx,
3164                                )
3165                                .map(|kb| kb.size(rems_from_px(10.))),
3166                            )
3167                            .on_click(cx.listener(|this, _, window, cx| {
3168                                this.continue_conversation(window, cx);
3169                            })),
3170                    )
3171                    .when(model.supports_burn_mode(), |this| {
3172                        this.child(
3173                            Button::new("continue-burn-mode", "Continue with Burn Mode")
3174                                .style(ButtonStyle::Filled)
3175                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3176                                .layer(ElevationIndex::ModalSurface)
3177                                .label_size(LabelSize::Small)
3178                                .key_binding(
3179                                    KeyBinding::for_action_in(
3180                                        &ContinueWithBurnMode,
3181                                        &focus_handle,
3182                                        window,
3183                                        cx,
3184                                    )
3185                                    .map(|kb| kb.size(rems_from_px(10.))),
3186                                )
3187                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
3188                                .on_click({
3189                                    let active_thread = active_thread.clone();
3190                                    cx.listener(move |this, _, window, cx| {
3191                                        active_thread.update(cx, |active_thread, cx| {
3192                                            active_thread.thread().update(cx, |thread, _cx| {
3193                                                thread.set_completion_mode(CompletionMode::Burn);
3194                                            });
3195                                        });
3196                                        this.continue_conversation(window, cx);
3197                                    })
3198                                }),
3199                        )
3200                    }),
3201            );
3202
3203        Some(div().px_2().pb_2().child(banner).into_any_element())
3204    }
3205
3206    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
3207        let message = message.into();
3208
3209        IconButton::new("copy", IconName::Copy)
3210            .icon_size(IconSize::Small)
3211            .icon_color(Color::Muted)
3212            .tooltip(Tooltip::text("Copy Error Message"))
3213            .on_click(move |_, _, cx| {
3214                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
3215            })
3216    }
3217
3218    fn dismiss_error_button(
3219        &self,
3220        thread: &Entity<ActiveThread>,
3221        cx: &mut Context<Self>,
3222    ) -> impl IntoElement {
3223        IconButton::new("dismiss", IconName::Close)
3224            .icon_size(IconSize::Small)
3225            .icon_color(Color::Muted)
3226            .tooltip(Tooltip::text("Dismiss Error"))
3227            .on_click(cx.listener({
3228                let thread = thread.clone();
3229                move |_, _, _, cx| {
3230                    thread.update(cx, |this, _cx| {
3231                        this.clear_last_error();
3232                    });
3233
3234                    cx.notify();
3235                }
3236            }))
3237    }
3238
3239    fn upgrade_button(
3240        &self,
3241        thread: &Entity<ActiveThread>,
3242        cx: &mut Context<Self>,
3243    ) -> impl IntoElement {
3244        Button::new("upgrade", "Upgrade")
3245            .label_size(LabelSize::Small)
3246            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3247            .on_click(cx.listener({
3248                let thread = thread.clone();
3249                move |_, _, _, cx| {
3250                    thread.update(cx, |this, _cx| {
3251                        this.clear_last_error();
3252                    });
3253
3254                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
3255                    cx.notify();
3256                }
3257            }))
3258    }
3259
3260    fn render_payment_required_error(
3261        &self,
3262        thread: &Entity<ActiveThread>,
3263        cx: &mut Context<Self>,
3264    ) -> AnyElement {
3265        const ERROR_MESSAGE: &str =
3266            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
3267
3268        Callout::new()
3269            .severity(Severity::Error)
3270            .icon(IconName::XCircle)
3271            .title("Free Usage Exceeded")
3272            .description(ERROR_MESSAGE)
3273            .actions_slot(
3274                h_flex()
3275                    .gap_0p5()
3276                    .child(self.upgrade_button(thread, cx))
3277                    .child(self.create_copy_button(ERROR_MESSAGE)),
3278            )
3279            .dismiss_action(self.dismiss_error_button(thread, cx))
3280            .into_any_element()
3281    }
3282
3283    fn render_model_request_limit_reached_error(
3284        &self,
3285        plan: Plan,
3286        thread: &Entity<ActiveThread>,
3287        cx: &mut Context<Self>,
3288    ) -> AnyElement {
3289        let error_message = match plan {
3290            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
3291            Plan::ZedProTrial | Plan::ZedFree => "Upgrade to Zed Pro for more prompts.",
3292        };
3293
3294        Callout::new()
3295            .severity(Severity::Error)
3296            .title("Model Prompt Limit Reached")
3297            .description(error_message)
3298            .actions_slot(
3299                h_flex()
3300                    .gap_0p5()
3301                    .child(self.upgrade_button(thread, cx))
3302                    .child(self.create_copy_button(error_message)),
3303            )
3304            .dismiss_action(self.dismiss_error_button(thread, cx))
3305            .into_any_element()
3306    }
3307
3308    fn render_retry_button(&self, thread: &Entity<ActiveThread>) -> AnyElement {
3309        Button::new("retry", "Retry")
3310            .icon(IconName::RotateCw)
3311            .icon_position(IconPosition::Start)
3312            .icon_size(IconSize::Small)
3313            .label_size(LabelSize::Small)
3314            .on_click({
3315                let thread = thread.clone();
3316                move |_, window, cx| {
3317                    thread.update(cx, |thread, cx| {
3318                        thread.clear_last_error();
3319                        thread.thread().update(cx, |thread, cx| {
3320                            thread.retry_last_completion(Some(window.window_handle()), cx);
3321                        });
3322                    });
3323                }
3324            })
3325            .into_any_element()
3326    }
3327
3328    fn render_error_message(
3329        &self,
3330        header: SharedString,
3331        message: SharedString,
3332        thread: &Entity<ActiveThread>,
3333        cx: &mut Context<Self>,
3334    ) -> AnyElement {
3335        let message_with_header = format!("{}\n{}", header, message);
3336
3337        Callout::new()
3338            .severity(Severity::Error)
3339            .icon(IconName::XCircle)
3340            .title(header)
3341            .description(message.clone())
3342            .actions_slot(
3343                h_flex()
3344                    .gap_0p5()
3345                    .child(self.render_retry_button(thread))
3346                    .child(self.create_copy_button(message_with_header)),
3347            )
3348            .dismiss_action(self.dismiss_error_button(thread, cx))
3349            .into_any_element()
3350    }
3351
3352    fn render_retryable_error(
3353        &self,
3354        message: SharedString,
3355        can_enable_burn_mode: bool,
3356        thread: &Entity<ActiveThread>,
3357    ) -> AnyElement {
3358        Callout::new()
3359            .severity(Severity::Error)
3360            .title("Error")
3361            .description(message.clone())
3362            .actions_slot(
3363                h_flex()
3364                    .gap_0p5()
3365                    .when(can_enable_burn_mode, |this| {
3366                        this.child(
3367                            Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
3368                                .icon(IconName::ZedBurnMode)
3369                                .icon_position(IconPosition::Start)
3370                                .icon_size(IconSize::Small)
3371                                .label_size(LabelSize::Small)
3372                                .on_click({
3373                                    let thread = thread.clone();
3374                                    move |_, window, cx| {
3375                                        thread.update(cx, |thread, cx| {
3376                                            thread.clear_last_error();
3377                                            thread.thread().update(cx, |thread, cx| {
3378                                                thread.enable_burn_mode_and_retry(
3379                                                    Some(window.window_handle()),
3380                                                    cx,
3381                                                );
3382                                            });
3383                                        });
3384                                    }
3385                                }),
3386                        )
3387                    })
3388                    .child(self.render_retry_button(thread)),
3389            )
3390            .into_any_element()
3391    }
3392
3393    fn render_prompt_editor(
3394        &self,
3395        context_editor: &Entity<TextThreadEditor>,
3396        buffer_search_bar: &Entity<BufferSearchBar>,
3397        window: &mut Window,
3398        cx: &mut Context<Self>,
3399    ) -> Div {
3400        let mut registrar = buffer_search::DivRegistrar::new(
3401            |this, _, _cx| match &this.active_view {
3402                ActiveView::TextThread {
3403                    buffer_search_bar, ..
3404                } => Some(buffer_search_bar.clone()),
3405                _ => None,
3406            },
3407            cx,
3408        );
3409        BufferSearchBar::register(&mut registrar);
3410        registrar
3411            .into_div()
3412            .size_full()
3413            .relative()
3414            .map(|parent| {
3415                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3416                    if buffer_search_bar.is_dismissed() {
3417                        return parent;
3418                    }
3419                    parent.child(
3420                        div()
3421                            .p(DynamicSpacing::Base08.rems(cx))
3422                            .border_b_1()
3423                            .border_color(cx.theme().colors().border_variant)
3424                            .bg(cx.theme().colors().editor_background)
3425                            .child(buffer_search_bar.render(window, cx)),
3426                    )
3427                })
3428            })
3429            .child(context_editor.clone())
3430            .child(self.render_drag_target(cx))
3431    }
3432
3433    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3434        let is_local = self.project.read(cx).is_local();
3435        div()
3436            .invisible()
3437            .absolute()
3438            .top_0()
3439            .right_0()
3440            .bottom_0()
3441            .left_0()
3442            .bg(cx.theme().colors().drop_target_background)
3443            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3444            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3445            .when(is_local, |this| {
3446                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3447            })
3448            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3449                let item = tab.pane.read(cx).item_for_index(tab.ix);
3450                let project_paths = item
3451                    .and_then(|item| item.project_path(cx))
3452                    .into_iter()
3453                    .collect::<Vec<_>>();
3454                this.handle_drop(project_paths, vec![], window, cx);
3455            }))
3456            .on_drop(
3457                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3458                    let project_paths = selection
3459                        .items()
3460                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3461                        .collect::<Vec<_>>();
3462                    this.handle_drop(project_paths, vec![], window, cx);
3463                }),
3464            )
3465            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3466                let tasks = paths
3467                    .paths()
3468                    .into_iter()
3469                    .map(|path| {
3470                        Workspace::project_path_for_path(this.project.clone(), path, false, cx)
3471                    })
3472                    .collect::<Vec<_>>();
3473                cx.spawn_in(window, async move |this, cx| {
3474                    let mut paths = vec![];
3475                    let mut added_worktrees = vec![];
3476                    let opened_paths = futures::future::join_all(tasks).await;
3477                    for entry in opened_paths {
3478                        if let Some((worktree, project_path)) = entry.log_err() {
3479                            added_worktrees.push(worktree);
3480                            paths.push(project_path);
3481                        }
3482                    }
3483                    this.update_in(cx, |this, window, cx| {
3484                        this.handle_drop(paths, added_worktrees, window, cx);
3485                    })
3486                    .ok();
3487                })
3488                .detach();
3489            }))
3490    }
3491
3492    fn handle_drop(
3493        &mut self,
3494        paths: Vec<ProjectPath>,
3495        added_worktrees: Vec<Entity<Worktree>>,
3496        window: &mut Window,
3497        cx: &mut Context<Self>,
3498    ) {
3499        match &self.active_view {
3500            ActiveView::Thread { thread, .. } => {
3501                let context_store = thread.read(cx).context_store().clone();
3502                context_store.update(cx, move |context_store, cx| {
3503                    let mut tasks = Vec::new();
3504                    for project_path in &paths {
3505                        tasks.push(context_store.add_file_from_path(
3506                            project_path.clone(),
3507                            false,
3508                            cx,
3509                        ));
3510                    }
3511                    cx.background_spawn(async move {
3512                        futures::future::join_all(tasks).await;
3513                        // Need to hold onto the worktrees until they have already been used when
3514                        // opening the buffers.
3515                        drop(added_worktrees);
3516                    })
3517                    .detach();
3518                });
3519            }
3520            ActiveView::ExternalAgentThread { thread_view } => {
3521                thread_view.update(cx, |thread_view, cx| {
3522                    thread_view.insert_dragged_files(paths, added_worktrees, window, cx);
3523                });
3524            }
3525            ActiveView::TextThread { context_editor, .. } => {
3526                context_editor.update(cx, |context_editor, cx| {
3527                    TextThreadEditor::insert_dragged_files(
3528                        context_editor,
3529                        paths,
3530                        added_worktrees,
3531                        window,
3532                        cx,
3533                    );
3534                });
3535            }
3536            ActiveView::History | ActiveView::Configuration => {}
3537        }
3538    }
3539
3540    fn key_context(&self) -> KeyContext {
3541        let mut key_context = KeyContext::new_with_defaults();
3542        key_context.add("AgentPanel");
3543        match &self.active_view {
3544            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3545            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3546            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3547        }
3548        key_context
3549    }
3550}
3551
3552impl Render for AgentPanel {
3553    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3554        // WARNING: Changes to this element hierarchy can have
3555        // non-obvious implications to the layout of children.
3556        //
3557        // If you need to change it, please confirm:
3558        // - The message editor expands (cmd-option-esc) correctly
3559        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3560        // - Font size works as expected and can be changed with cmd-+/cmd-
3561        // - Scrolling in all views works as expected
3562        // - Files can be dropped into the panel
3563        let content = v_flex()
3564            .relative()
3565            .size_full()
3566            .justify_between()
3567            .key_context(self.key_context())
3568            .on_action(cx.listener(Self::cancel))
3569            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3570                this.new_thread(action, window, cx);
3571            }))
3572            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3573                this.open_history(window, cx);
3574            }))
3575            .on_action(cx.listener(|this, _: &OpenSettings, window, cx| {
3576                this.open_configuration(window, cx);
3577            }))
3578            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3579            .on_action(cx.listener(Self::deploy_rules_library))
3580            .on_action(cx.listener(Self::open_agent_diff))
3581            .on_action(cx.listener(Self::go_back))
3582            .on_action(cx.listener(Self::toggle_navigation_menu))
3583            .on_action(cx.listener(Self::toggle_options_menu))
3584            .on_action(cx.listener(Self::increase_font_size))
3585            .on_action(cx.listener(Self::decrease_font_size))
3586            .on_action(cx.listener(Self::reset_font_size))
3587            .on_action(cx.listener(Self::toggle_zoom))
3588            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3589                this.continue_conversation(window, cx);
3590            }))
3591            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3592                match &this.active_view {
3593                    ActiveView::Thread { thread, .. } => {
3594                        thread.update(cx, |active_thread, cx| {
3595                            active_thread.thread().update(cx, |thread, _cx| {
3596                                thread.set_completion_mode(CompletionMode::Burn);
3597                            });
3598                        });
3599                        this.continue_conversation(window, cx);
3600                    }
3601                    ActiveView::ExternalAgentThread { .. } => {}
3602                    ActiveView::TextThread { .. }
3603                    | ActiveView::History
3604                    | ActiveView::Configuration => {}
3605                }
3606            }))
3607            .on_action(cx.listener(Self::toggle_burn_mode))
3608            .child(self.render_toolbar(window, cx))
3609            .children(self.render_onboarding(window, cx))
3610            .map(|parent| match &self.active_view {
3611                ActiveView::Thread {
3612                    thread,
3613                    message_editor,
3614                    ..
3615                } => parent
3616                    .child(
3617                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3618                            self.render_thread_empty_state(window, cx)
3619                                .into_any_element()
3620                        } else {
3621                            thread.clone().into_any_element()
3622                        },
3623                    )
3624                    .children(self.render_tool_use_limit_reached(window, cx))
3625                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3626                        this.child(
3627                            div()
3628                                .child(match last_error {
3629                                    ThreadError::PaymentRequired => {
3630                                        self.render_payment_required_error(thread, cx)
3631                                    }
3632                                    ThreadError::ModelRequestLimitReached { plan } => self
3633                                        .render_model_request_limit_reached_error(plan, thread, cx),
3634                                    ThreadError::Message { header, message } => {
3635                                        self.render_error_message(header, message, thread, cx)
3636                                    }
3637                                    ThreadError::RetryableError {
3638                                        message,
3639                                        can_enable_burn_mode,
3640                                    } => self.render_retryable_error(
3641                                        message,
3642                                        can_enable_burn_mode,
3643                                        thread,
3644                                    ),
3645                                })
3646                                .into_any(),
3647                        )
3648                    })
3649                    .child(h_flex().relative().child(message_editor.clone()).when(
3650                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3651                        |this| this.child(self.render_backdrop(cx)),
3652                    ))
3653                    .child(self.render_drag_target(cx)),
3654                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3655                    .child(thread_view.clone())
3656                    .child(self.render_drag_target(cx)),
3657                ActiveView::History => {
3658                    if cx.has_flag::<feature_flags::AcpFeatureFlag>() {
3659                        parent.child(self.acp_history.clone())
3660                    } else {
3661                        parent.child(self.history.clone())
3662                    }
3663                }
3664                ActiveView::TextThread {
3665                    context_editor,
3666                    buffer_search_bar,
3667                    ..
3668                } => {
3669                    let model_registry = LanguageModelRegistry::read_global(cx);
3670                    let configuration_error =
3671                        model_registry.configuration_error(model_registry.default_model(), cx);
3672                    parent
3673                        .map(|this| {
3674                            if !self.should_render_onboarding(cx)
3675                                && let Some(err) = configuration_error.as_ref()
3676                            {
3677                                this.child(self.render_configuration_error(
3678                                    true,
3679                                    err,
3680                                    &self.focus_handle(cx),
3681                                    window,
3682                                    cx,
3683                                ))
3684                            } else {
3685                                this
3686                            }
3687                        })
3688                        .child(self.render_prompt_editor(
3689                            context_editor,
3690                            buffer_search_bar,
3691                            window,
3692                            cx,
3693                        ))
3694                }
3695                ActiveView::Configuration => parent.children(self.configuration.clone()),
3696            })
3697            .children(self.render_trial_end_upsell(window, cx));
3698
3699        match self.active_view.which_font_size_used() {
3700            WhichFontSize::AgentFont => {
3701                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3702                    .size_full()
3703                    .child(content)
3704                    .into_any()
3705            }
3706            _ => content.into_any(),
3707        }
3708    }
3709}
3710
3711struct PromptLibraryInlineAssist {
3712    workspace: WeakEntity<Workspace>,
3713}
3714
3715impl PromptLibraryInlineAssist {
3716    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3717        Self { workspace }
3718    }
3719}
3720
3721impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3722    fn assist(
3723        &self,
3724        prompt_editor: &Entity<Editor>,
3725        initial_prompt: Option<String>,
3726        window: &mut Window,
3727        cx: &mut Context<RulesLibrary>,
3728    ) {
3729        InlineAssistant::update_global(cx, |assistant, cx| {
3730            let Some(project) = self
3731                .workspace
3732                .upgrade()
3733                .map(|workspace| workspace.read(cx).project().downgrade())
3734            else {
3735                return;
3736            };
3737            let prompt_store = None;
3738            let thread_store = None;
3739            let text_thread_store = None;
3740            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3741            assistant.assist(
3742                prompt_editor,
3743                self.workspace.clone(),
3744                context_store,
3745                project,
3746                prompt_store,
3747                thread_store,
3748                text_thread_store,
3749                initial_prompt,
3750                window,
3751                cx,
3752            )
3753        })
3754    }
3755
3756    fn focus_agent_panel(
3757        &self,
3758        workspace: &mut Workspace,
3759        window: &mut Window,
3760        cx: &mut Context<Workspace>,
3761    ) -> bool {
3762        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3763    }
3764}
3765
3766pub struct ConcreteAssistantPanelDelegate;
3767
3768impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3769    fn active_context_editor(
3770        &self,
3771        workspace: &mut Workspace,
3772        _window: &mut Window,
3773        cx: &mut Context<Workspace>,
3774    ) -> Option<Entity<TextThreadEditor>> {
3775        let panel = workspace.panel::<AgentPanel>(cx)?;
3776        panel.read(cx).active_context_editor()
3777    }
3778
3779    fn open_saved_context(
3780        &self,
3781        workspace: &mut Workspace,
3782        path: Arc<Path>,
3783        window: &mut Window,
3784        cx: &mut Context<Workspace>,
3785    ) -> Task<Result<()>> {
3786        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3787            return Task::ready(Err(anyhow!("Agent panel not found")));
3788        };
3789
3790        panel.update(cx, |panel, cx| {
3791            panel.open_saved_prompt_editor(path, window, cx)
3792        })
3793    }
3794
3795    fn open_remote_context(
3796        &self,
3797        _workspace: &mut Workspace,
3798        _context_id: assistant_context::ContextId,
3799        _window: &mut Window,
3800        _cx: &mut Context<Workspace>,
3801    ) -> Task<Result<Entity<TextThreadEditor>>> {
3802        Task::ready(Err(anyhow!("opening remote context not implemented")))
3803    }
3804
3805    fn quote_selection(
3806        &self,
3807        workspace: &mut Workspace,
3808        selection_ranges: Vec<Range<Anchor>>,
3809        buffer: Entity<MultiBuffer>,
3810        window: &mut Window,
3811        cx: &mut Context<Workspace>,
3812    ) {
3813        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3814            return;
3815        };
3816
3817        if !panel.focus_handle(cx).contains_focused(window, cx) {
3818            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3819        }
3820
3821        panel.update(cx, |_, cx| {
3822            // Wait to create a new context until the workspace is no longer
3823            // being updated.
3824            cx.defer_in(window, move |panel, window, cx| {
3825                if let Some(message_editor) = panel.active_message_editor() {
3826                    message_editor.update(cx, |message_editor, cx| {
3827                        message_editor.context_store().update(cx, |store, cx| {
3828                            let buffer = buffer.read(cx);
3829                            let selection_ranges = selection_ranges
3830                                .into_iter()
3831                                .flat_map(|range| {
3832                                    let (start_buffer, start) =
3833                                        buffer.text_anchor_for_position(range.start, cx)?;
3834                                    let (end_buffer, end) =
3835                                        buffer.text_anchor_for_position(range.end, cx)?;
3836                                    if start_buffer != end_buffer {
3837                                        return None;
3838                                    }
3839                                    Some((start_buffer, start..end))
3840                                })
3841                                .collect::<Vec<_>>();
3842
3843                            for (buffer, range) in selection_ranges {
3844                                store.add_selection(buffer, range, cx);
3845                            }
3846                        })
3847                    })
3848                } else if let Some(context_editor) = panel.active_context_editor() {
3849                    let snapshot = buffer.read(cx).snapshot(cx);
3850                    let selection_ranges = selection_ranges
3851                        .into_iter()
3852                        .map(|range| range.to_point(&snapshot))
3853                        .collect::<Vec<_>>();
3854
3855                    context_editor.update(cx, |context_editor, cx| {
3856                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3857                    });
3858                }
3859            });
3860        });
3861    }
3862}
3863
3864struct OnboardingUpsell;
3865
3866impl Dismissable for OnboardingUpsell {
3867    const KEY: &'static str = "dismissed-trial-upsell";
3868}
3869
3870struct TrialEndUpsell;
3871
3872impl Dismissable for TrialEndUpsell {
3873    const KEY: &'static str = "dismissed-trial-end-upsell";
3874}