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 acp_thread::AcpThread;
   8use agent2::{DbThreadMetadata, HistoryEntry};
   9use db::kvp::{Dismissable, KEY_VALUE_STORE};
  10use serde::{Deserialize, Serialize};
  11
  12use crate::acp::{AcpThreadHistory, ThreadHistoryEvent};
  13use crate::agent_diff::AgentDiffThread;
  14use crate::{
  15    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  16    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  17    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  18    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu,
  19    ToggleNewThreadMenu, ToggleOptionsMenu,
  20    acp::AcpThreadView,
  21    active_thread::{self, ActiveThread, ActiveThreadEvent},
  22    agent_configuration::{AgentConfiguration, AssistantConfigurationEvent},
  23    agent_diff::AgentDiff,
  24    message_editor::{MessageEditor, MessageEditorEvent},
  25    slash_command::SlashCommandCompletionProvider,
  26    text_thread_editor::{
  27        AgentPanelDelegate, TextThreadEditor, humanize_token_count, make_lsp_adapter_delegate,
  28        render_remaining_tokens,
  29    },
  30    thread_history::{HistoryEntryElement, ThreadHistory},
  31    ui::{AgentOnboardingModal, EndTrialUpsell},
  32};
  33use crate::{ExternalAgent, NewExternalAgentThread};
  34use agent::{
  35    Thread, ThreadError, ThreadEvent, ThreadId, ThreadSummary, TokenUsageRatio,
  36    context_store::ContextStore,
  37    history_store::{HistoryEntryId, HistoryStore},
  38    thread_store::{TextThreadStore, ThreadStore},
  39};
  40use agent_settings::{AgentDockPosition, AgentSettings, CompletionMode, DefaultView};
  41use ai_onboarding::AgentPanelOnboarding;
  42use anyhow::{Result, anyhow};
  43use assistant_context::{AssistantContext, ContextEvent, ContextSummary};
  44use assistant_slash_command::SlashCommandWorkingSet;
  45use assistant_tool::ToolWorkingSet;
  46use client::{UserStore, zed_urls};
  47use cloud_llm_client::{CompletionIntent, Plan, UsageLimit};
  48use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
  49use feature_flags::{self, ClaudeCodeFeatureFlag, FeatureFlagAppExt, GeminiAndNativeFeatureFlag};
  50use fs::Fs;
  51use gpui::{
  52    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
  53    Corner, DismissEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable, KeyContext,
  54    Pixels, Subscription, Task, UpdateGlobal, WeakEntity, prelude::*, pulsating_between,
  55};
  56use language::LanguageRegistry;
  57use language_model::{
  58    ConfigurationError, ConfiguredModel, LanguageModelProviderTosView, LanguageModelRegistry,
  59};
  60use project::{DisableAiSettings, Project, ProjectPath, Worktree};
  61use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
  62use rules_library::{RulesLibrary, open_rules_library};
  63use search::{BufferSearchBar, buffer_search};
  64use settings::{Settings, update_settings_file};
  65use theme::ThemeSettings;
  66use time::UtcOffset;
  67use ui::utils::WithRemSize;
  68use ui::{
  69    Banner, Callout, ContextMenu, ContextMenuEntry, ElevationIndex, KeyBinding, PopoverMenu,
  70    PopoverMenuHandle, ProgressBar, Tab, Tooltip, prelude::*,
  71};
  72use util::ResultExt as _;
  73use workspace::{
  74    CollaboratorId, DraggedSelection, DraggedTab, ToggleZoom, ToolbarItemView, Workspace,
  75    dock::{DockPosition, Panel, PanelEvent},
  76};
  77use zed_actions::{
  78    DecreaseBufferFontSize, IncreaseBufferFontSize, ResetBufferFontSize,
  79    agent::{OpenOnboardingModal, OpenSettings, ResetOnboarding, ToggleModelSelector},
  80    assistant::{OpenRulesLibrary, ToggleFocus},
  81};
  82
  83const AGENT_PANEL_KEY: &str = "agent_panel";
  84
  85#[derive(Serialize, Deserialize)]
  86struct SerializedAgentPanel {
  87    width: Option<Pixels>,
  88    selected_agent: Option<AgentType>,
  89}
  90
  91pub fn init(cx: &mut App) {
  92    cx.observe_new(
  93        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  94            workspace
  95                .register_action(|workspace, action: &NewThread, window, cx| {
  96                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  97                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  98                        workspace.focus_panel::<AgentPanel>(window, cx);
  99                    }
 100                })
 101                .register_action(|workspace, _: &OpenHistory, window, cx| {
 102                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 103                        workspace.focus_panel::<AgentPanel>(window, cx);
 104                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
 105                    }
 106                })
 107                .register_action(|workspace, _: &OpenSettings, window, cx| {
 108                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 109                        workspace.focus_panel::<AgentPanel>(window, cx);
 110                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 111                    }
 112                })
 113                .register_action(|workspace, _: &NewTextThread, window, cx| {
 114                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 115                        workspace.focus_panel::<AgentPanel>(window, cx);
 116                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 117                    }
 118                })
 119                .register_action(|workspace, action: &NewExternalAgentThread, window, cx| {
 120                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 121                        workspace.focus_panel::<AgentPanel>(window, cx);
 122                        panel.update(cx, |panel, cx| {
 123                            panel.external_thread(action.agent, None, window, cx)
 124                        });
 125                    }
 126                })
 127                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 128                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 129                        workspace.focus_panel::<AgentPanel>(window, cx);
 130                        panel.update(cx, |panel, cx| {
 131                            panel.deploy_rules_library(action, window, cx)
 132                        });
 133                    }
 134                })
 135                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 136                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 137                        workspace.focus_panel::<AgentPanel>(window, cx);
 138                        match &panel.read(cx).active_view {
 139                            ActiveView::Thread { thread, .. } => {
 140                                let thread = thread.read(cx).thread().clone();
 141                                AgentDiffPane::deploy_in_workspace(thread, workspace, window, cx);
 142                            }
 143                            ActiveView::ExternalAgentThread { .. }
 144                            | ActiveView::TextThread { .. }
 145                            | ActiveView::History
 146                            | ActiveView::Configuration => {}
 147                        }
 148                    }
 149                })
 150                .register_action(|workspace, _: &Follow, window, cx| {
 151                    workspace.follow(CollaboratorId::Agent, window, cx);
 152                })
 153                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 154                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 155                        return;
 156                    };
 157                    workspace.focus_panel::<AgentPanel>(window, cx);
 158                    panel.update(cx, |panel, cx| {
 159                        if let Some(message_editor) = panel.active_message_editor() {
 160                            message_editor.update(cx, |editor, cx| {
 161                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 162                            });
 163                        }
 164                    });
 165                })
 166                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 167                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 168                        workspace.focus_panel::<AgentPanel>(window, cx);
 169                        panel.update(cx, |panel, cx| {
 170                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 171                        });
 172                    }
 173                })
 174                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 175                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 176                        workspace.focus_panel::<AgentPanel>(window, cx);
 177                        panel.update(cx, |panel, cx| {
 178                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 179                        });
 180                    }
 181                })
 182                .register_action(|workspace, _: &ToggleNewThreadMenu, window, cx| {
 183                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 184                        workspace.focus_panel::<AgentPanel>(window, cx);
 185                        panel.update(cx, |panel, cx| {
 186                            panel.toggle_new_thread_menu(&ToggleNewThreadMenu, window, cx);
 187                        });
 188                    }
 189                })
 190                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 191                    AgentOnboardingModal::toggle(workspace, window, cx)
 192                })
 193                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 194                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 195                    window.refresh();
 196                })
 197                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 198                    OnboardingUpsell::set_dismissed(false, cx);
 199                })
 200                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 201                    TrialEndUpsell::set_dismissed(false, cx);
 202                });
 203        },
 204    )
 205    .detach();
 206}
 207
 208enum ActiveView {
 209    Thread {
 210        thread: Entity<ActiveThread>,
 211        change_title_editor: Entity<Editor>,
 212        message_editor: Entity<MessageEditor>,
 213        _subscriptions: Vec<gpui::Subscription>,
 214    },
 215    ExternalAgentThread {
 216        thread_view: Entity<AcpThreadView>,
 217    },
 218    TextThread {
 219        context_editor: Entity<TextThreadEditor>,
 220        title_editor: Entity<Editor>,
 221        buffer_search_bar: Entity<BufferSearchBar>,
 222        _subscriptions: Vec<gpui::Subscription>,
 223    },
 224    History,
 225    Configuration,
 226}
 227
 228enum WhichFontSize {
 229    AgentFont,
 230    BufferFont,
 231    None,
 232}
 233
 234#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
 235pub enum AgentType {
 236    #[default]
 237    Zed,
 238    TextThread,
 239    Gemini,
 240    ClaudeCode,
 241    NativeAgent,
 242}
 243
 244impl AgentType {
 245    fn label(self) -> impl Into<SharedString> {
 246        match self {
 247            Self::Zed | Self::TextThread => "Zed Agent",
 248            Self::NativeAgent => "Agent 2",
 249            Self::Gemini => "Gemini CLI",
 250            Self::ClaudeCode => "Claude Code",
 251        }
 252    }
 253
 254    fn icon(self) -> Option<IconName> {
 255        match self {
 256            Self::Zed | Self::NativeAgent | Self::TextThread => None,
 257            Self::Gemini => Some(IconName::AiGemini),
 258            Self::ClaudeCode => Some(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,
 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 = cx.new(|cx| agent2::HistoryStore::new(context_store.clone(), cx));
 652        let acp_history = cx.new(|cx| AcpThreadHistory::new(acp_history_store.clone(), window, cx));
 653        cx.subscribe_in(
 654            &acp_history,
 655            window,
 656            |this, _, event, window, cx| match event {
 657                ThreadHistoryEvent::Open(HistoryEntry::AcpThread(thread)) => {
 658                    this.external_thread(
 659                        Some(crate::ExternalAgent::NativeAgent),
 660                        Some(thread.clone()),
 661                        window,
 662                        cx,
 663                    );
 664                }
 665                ThreadHistoryEvent::Open(HistoryEntry::TextThread(thread)) => {
 666                    this.open_saved_prompt_editor(thread.path.clone(), window, cx)
 667                        .detach_and_log_err(cx);
 668                }
 669            },
 670        )
 671        .detach();
 672
 673        cx.observe(&history_store, |_, _, cx| cx.notify()).detach();
 674
 675        let active_thread = cx.new(|cx| {
 676            ActiveThread::new(
 677                thread.clone(),
 678                thread_store.clone(),
 679                context_store.clone(),
 680                message_editor_context_store.clone(),
 681                language_registry.clone(),
 682                workspace.clone(),
 683                window,
 684                cx,
 685            )
 686        });
 687
 688        let panel_type = AgentSettings::get_global(cx).default_view;
 689        let active_view = match panel_type {
 690            DefaultView::Thread => ActiveView::thread(active_thread, message_editor, window, cx),
 691            DefaultView::TextThread => {
 692                let context =
 693                    context_store.update(cx, |context_store, cx| context_store.create(cx));
 694                let lsp_adapter_delegate = make_lsp_adapter_delegate(&project.clone(), cx).unwrap();
 695                let context_editor = cx.new(|cx| {
 696                    let mut editor = TextThreadEditor::for_context(
 697                        context,
 698                        fs.clone(),
 699                        workspace.clone(),
 700                        project.clone(),
 701                        lsp_adapter_delegate,
 702                        window,
 703                        cx,
 704                    );
 705                    editor.insert_default_prompt(window, cx);
 706                    editor
 707                });
 708                ActiveView::prompt_editor(
 709                    context_editor,
 710                    history_store.clone(),
 711                    acp_history_store.clone(),
 712                    language_registry.clone(),
 713                    window,
 714                    cx,
 715                )
 716            }
 717        };
 718
 719        AgentDiff::set_active_thread(&workspace, thread.clone(), window, cx);
 720
 721        let weak_panel = weak_self.clone();
 722
 723        window.defer(cx, move |window, cx| {
 724            let panel = weak_panel.clone();
 725            let assistant_navigation_menu =
 726                ContextMenu::build_persistent(window, cx, move |mut menu, _window, cx| {
 727                    if let Some(panel) = panel.upgrade() {
 728                        if cx.has_flag::<GeminiAndNativeFeatureFlag>() {
 729                            menu = Self::populate_recently_opened_menu_section_new(menu, panel, cx);
 730                        } else {
 731                            menu = Self::populate_recently_opened_menu_section_old(menu, panel, cx);
 732                        }
 733                    }
 734                    menu.action("View All", Box::new(OpenHistory))
 735                        .end_slot_action(DeleteRecentlyOpenThread.boxed_clone())
 736                        .fixed_width(px(320.).into())
 737                        .keep_open_on_confirm(false)
 738                        .key_context("NavigationMenu")
 739                });
 740            weak_panel
 741                .update(cx, |panel, cx| {
 742                    cx.subscribe_in(
 743                        &assistant_navigation_menu,
 744                        window,
 745                        |_, menu, _: &DismissEvent, window, cx| {
 746                            menu.update(cx, |menu, _| {
 747                                menu.clear_selected();
 748                            });
 749                            cx.focus_self(window);
 750                        },
 751                    )
 752                    .detach();
 753                    panel.assistant_navigation_menu = Some(assistant_navigation_menu);
 754                })
 755                .ok();
 756        });
 757
 758        let _default_model_subscription =
 759            cx.subscribe(
 760                &LanguageModelRegistry::global(cx),
 761                |this, _, event: &language_model::Event, cx| {
 762                    if let language_model::Event::DefaultModelChanged = event {
 763                        match &this.active_view {
 764                            ActiveView::Thread { thread, .. } => {
 765                                thread.read(cx).thread().clone().update(cx, |thread, cx| {
 766                                    thread.get_or_init_configured_model(cx)
 767                                });
 768                            }
 769                            ActiveView::ExternalAgentThread { .. }
 770                            | ActiveView::TextThread { .. }
 771                            | ActiveView::History
 772                            | ActiveView::Configuration => {}
 773                        }
 774                    }
 775                },
 776            );
 777
 778        let onboarding = cx.new(|cx| {
 779            AgentPanelOnboarding::new(
 780                user_store.clone(),
 781                client,
 782                |_window, cx| {
 783                    OnboardingUpsell::set_dismissed(true, cx);
 784                },
 785                cx,
 786            )
 787        });
 788
 789        Self {
 790            active_view,
 791            workspace,
 792            user_store,
 793            project: project.clone(),
 794            fs: fs.clone(),
 795            language_registry,
 796            thread_store: thread_store.clone(),
 797            _default_model_subscription,
 798            context_store,
 799            prompt_store,
 800            configuration: None,
 801            configuration_subscription: None,
 802            local_timezone: UtcOffset::from_whole_seconds(
 803                chrono::Local::now().offset().local_minus_utc(),
 804            )
 805            .unwrap(),
 806            inline_assist_context_store,
 807            previous_view: None,
 808            history_store: history_store.clone(),
 809            history: cx.new(|cx| ThreadHistory::new(weak_self, history_store, window, cx)),
 810            hovered_recent_history_item: None,
 811            new_thread_menu_handle: PopoverMenuHandle::default(),
 812            agent_panel_menu_handle: PopoverMenuHandle::default(),
 813            assistant_navigation_menu_handle: PopoverMenuHandle::default(),
 814            assistant_navigation_menu: None,
 815            width: None,
 816            height: None,
 817            zoomed: false,
 818            pending_serialization: None,
 819            onboarding,
 820            acp_history,
 821            acp_history_store,
 822            selected_agent: AgentType::default(),
 823        }
 824    }
 825
 826    pub fn toggle_focus(
 827        workspace: &mut Workspace,
 828        _: &ToggleFocus,
 829        window: &mut Window,
 830        cx: &mut Context<Workspace>,
 831    ) {
 832        if workspace
 833            .panel::<Self>(cx)
 834            .is_some_and(|panel| panel.read(cx).enabled(cx))
 835            && !DisableAiSettings::get_global(cx).disable_ai
 836        {
 837            workspace.toggle_panel_focus::<Self>(window, cx);
 838        }
 839    }
 840
 841    pub(crate) fn local_timezone(&self) -> UtcOffset {
 842        self.local_timezone
 843    }
 844
 845    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 846        &self.prompt_store
 847    }
 848
 849    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 850        &self.inline_assist_context_store
 851    }
 852
 853    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 854        &self.thread_store
 855    }
 856
 857    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 858        &self.context_store
 859    }
 860
 861    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 862        match &self.active_view {
 863            ActiveView::Thread { thread, .. } => {
 864                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 865            }
 866            ActiveView::ExternalAgentThread { .. }
 867            | ActiveView::TextThread { .. }
 868            | ActiveView::History
 869            | ActiveView::Configuration => {}
 870        }
 871    }
 872
 873    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 874        match &self.active_view {
 875            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 876            ActiveView::ExternalAgentThread { .. }
 877            | ActiveView::TextThread { .. }
 878            | ActiveView::History
 879            | ActiveView::Configuration => None,
 880        }
 881    }
 882
 883    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 884        if cx.has_flag::<GeminiAndNativeFeatureFlag>() {
 885            return self.new_agent_thread(AgentType::NativeAgent, window, cx);
 886        }
 887        // Preserve chat box text when using creating new thread
 888        let preserved_text = self
 889            .active_message_editor()
 890            .map(|editor| editor.read(cx).get_text(cx).trim().to_string());
 891
 892        let thread = self
 893            .thread_store
 894            .update(cx, |this, cx| this.create_thread(cx));
 895
 896        let context_store = cx.new(|_cx| {
 897            ContextStore::new(
 898                self.project.downgrade(),
 899                Some(self.thread_store.downgrade()),
 900            )
 901        });
 902
 903        if let Some(other_thread_id) = action.from_thread_id.clone() {
 904            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 905                this.open_thread(&other_thread_id, window, cx)
 906            });
 907
 908            cx.spawn({
 909                let context_store = context_store.clone();
 910
 911                async move |_panel, cx| {
 912                    let other_thread = other_thread_task.await?;
 913
 914                    context_store.update(cx, |this, cx| {
 915                        this.add_thread(other_thread, false, cx);
 916                    })?;
 917                    anyhow::Ok(())
 918                }
 919            })
 920            .detach_and_log_err(cx);
 921        }
 922
 923        let active_thread = cx.new(|cx| {
 924            ActiveThread::new(
 925                thread.clone(),
 926                self.thread_store.clone(),
 927                self.context_store.clone(),
 928                context_store.clone(),
 929                self.language_registry.clone(),
 930                self.workspace.clone(),
 931                window,
 932                cx,
 933            )
 934        });
 935
 936        let message_editor = cx.new(|cx| {
 937            MessageEditor::new(
 938                self.fs.clone(),
 939                self.workspace.clone(),
 940                context_store.clone(),
 941                self.prompt_store.clone(),
 942                self.thread_store.downgrade(),
 943                self.context_store.downgrade(),
 944                Some(self.history_store.downgrade()),
 945                thread.clone(),
 946                window,
 947                cx,
 948            )
 949        });
 950
 951        if let Some(text) = preserved_text {
 952            message_editor.update(cx, |editor, cx| {
 953                editor.set_text(text, window, cx);
 954            });
 955        }
 956
 957        message_editor.focus_handle(cx).focus(window);
 958
 959        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 960        self.set_active_view(thread_view, window, cx);
 961
 962        AgentDiff::set_active_thread(&self.workspace, thread.clone(), window, cx);
 963    }
 964
 965    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 966        let context = self
 967            .context_store
 968            .update(cx, |context_store, cx| context_store.create(cx));
 969        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 970            .log_err()
 971            .flatten();
 972
 973        let context_editor = cx.new(|cx| {
 974            let mut editor = TextThreadEditor::for_context(
 975                context,
 976                self.fs.clone(),
 977                self.workspace.clone(),
 978                self.project.clone(),
 979                lsp_adapter_delegate,
 980                window,
 981                cx,
 982            );
 983            editor.insert_default_prompt(window, cx);
 984            editor
 985        });
 986
 987        self.set_active_view(
 988            ActiveView::prompt_editor(
 989                context_editor.clone(),
 990                self.history_store.clone(),
 991                self.acp_history_store.clone(),
 992                self.language_registry.clone(),
 993                window,
 994                cx,
 995            ),
 996            window,
 997            cx,
 998        );
 999        context_editor.focus_handle(cx).focus(window);
1000    }
1001
1002    fn external_thread(
1003        &mut self,
1004        agent_choice: Option<crate::ExternalAgent>,
1005        resume_thread: Option<DbThreadMetadata>,
1006        window: &mut Window,
1007        cx: &mut Context<Self>,
1008    ) {
1009        let workspace = self.workspace.clone();
1010        let project = self.project.clone();
1011        let fs = self.fs.clone();
1012
1013        const LAST_USED_EXTERNAL_AGENT_KEY: &str = "agent_panel__last_used_external_agent";
1014
1015        #[derive(Default, Serialize, Deserialize)]
1016        struct LastUsedExternalAgent {
1017            agent: crate::ExternalAgent,
1018        }
1019
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::<GeminiAndNativeFeatureFlag>() {
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                        this.acp_history_store.clone(),
1077                        this.prompt_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    pub(crate) fn active_agent_thread(&self, cx: &App) -> Option<Entity<AcpThread>> {
1501        match &self.active_view {
1502            ActiveView::ExternalAgentThread { thread_view, .. } => {
1503                thread_view.read(cx).thread().cloned()
1504            }
1505            _ => None,
1506        }
1507    }
1508
1509    pub(crate) fn delete_thread(
1510        &mut self,
1511        thread_id: &ThreadId,
1512        cx: &mut Context<Self>,
1513    ) -> Task<Result<()>> {
1514        self.thread_store
1515            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1516    }
1517
1518    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1519        let ActiveView::Thread { thread, .. } = &self.active_view else {
1520            return;
1521        };
1522
1523        let thread_state = thread.read(cx).thread().read(cx);
1524        if !thread_state.tool_use_limit_reached() {
1525            return;
1526        }
1527
1528        let model = thread_state.configured_model().map(|cm| cm.model.clone());
1529        if let Some(model) = model {
1530            thread.update(cx, |active_thread, cx| {
1531                active_thread.thread().update(cx, |thread, cx| {
1532                    thread.insert_invisible_continue_message(cx);
1533                    thread.advance_prompt_id();
1534                    thread.send_to_model(
1535                        model,
1536                        CompletionIntent::UserPrompt,
1537                        Some(window.window_handle()),
1538                        cx,
1539                    );
1540                });
1541            });
1542        } else {
1543            log::warn!("No configured model available for continuation");
1544        }
1545    }
1546
1547    fn toggle_burn_mode(
1548        &mut self,
1549        _: &ToggleBurnMode,
1550        _window: &mut Window,
1551        cx: &mut Context<Self>,
1552    ) {
1553        let ActiveView::Thread { thread, .. } = &self.active_view else {
1554            return;
1555        };
1556
1557        thread.update(cx, |active_thread, cx| {
1558            active_thread.thread().update(cx, |thread, _cx| {
1559                let current_mode = thread.completion_mode();
1560
1561                thread.set_completion_mode(match current_mode {
1562                    CompletionMode::Burn => CompletionMode::Normal,
1563                    CompletionMode::Normal => CompletionMode::Burn,
1564                });
1565            });
1566        });
1567    }
1568
1569    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1570        match &self.active_view {
1571            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1572            _ => None,
1573        }
1574    }
1575
1576    pub(crate) fn delete_context(
1577        &mut self,
1578        path: Arc<Path>,
1579        cx: &mut Context<Self>,
1580    ) -> Task<Result<()>> {
1581        self.context_store
1582            .update(cx, |this, cx| this.delete_local_context(path, cx))
1583    }
1584
1585    fn set_active_view(
1586        &mut self,
1587        new_view: ActiveView,
1588        window: &mut Window,
1589        cx: &mut Context<Self>,
1590    ) {
1591        let current_is_history = matches!(self.active_view, ActiveView::History);
1592        let new_is_history = matches!(new_view, ActiveView::History);
1593
1594        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1595        let new_is_config = matches!(new_view, ActiveView::Configuration);
1596
1597        let current_is_special = current_is_history || current_is_config;
1598        let new_is_special = new_is_history || new_is_config;
1599
1600        if let ActiveView::Thread { thread, .. } = &self.active_view {
1601            let thread = thread.read(cx);
1602            if thread.is_empty() {
1603                let id = thread.thread().read(cx).id().clone();
1604                self.history_store.update(cx, |store, cx| {
1605                    store.remove_recently_opened_thread(id, cx);
1606                });
1607            }
1608        }
1609
1610        match &new_view {
1611            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1612                let id = thread.read(cx).thread().read(cx).id().clone();
1613                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1614            }),
1615            ActiveView::TextThread { context_editor, .. } => {
1616                self.history_store.update(cx, |store, cx| {
1617                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1618                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1619                    }
1620                });
1621                self.acp_history_store.update(cx, |store, cx| {
1622                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1623                        store.push_recently_opened_entry(
1624                            agent2::HistoryEntryId::TextThread(path.clone()),
1625                            cx,
1626                        )
1627                    }
1628                })
1629            }
1630            ActiveView::ExternalAgentThread { .. } => {}
1631            ActiveView::History | ActiveView::Configuration => {}
1632        }
1633
1634        if current_is_special && !new_is_special {
1635            self.active_view = new_view;
1636        } else if !current_is_special && new_is_special {
1637            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1638        } else {
1639            if !new_is_special {
1640                self.previous_view = None;
1641            }
1642            self.active_view = new_view;
1643        }
1644
1645        self.focus_handle(cx).focus(window);
1646    }
1647
1648    fn populate_recently_opened_menu_section_old(
1649        mut menu: ContextMenu,
1650        panel: Entity<Self>,
1651        cx: &mut Context<ContextMenu>,
1652    ) -> ContextMenu {
1653        let entries = panel
1654            .read(cx)
1655            .history_store
1656            .read(cx)
1657            .recently_opened_entries(cx);
1658
1659        if entries.is_empty() {
1660            return menu;
1661        }
1662
1663        menu = menu.header("Recently Opened");
1664
1665        for entry in entries {
1666            let title = entry.title().clone();
1667            let id = entry.id();
1668
1669            menu = menu.entry_with_end_slot_on_hover(
1670                title,
1671                None,
1672                {
1673                    let panel = panel.downgrade();
1674                    let id = id.clone();
1675                    move |window, cx| {
1676                        let id = id.clone();
1677                        panel
1678                            .update(cx, move |this, cx| match id {
1679                                HistoryEntryId::Thread(id) => this
1680                                    .open_thread_by_id(&id, window, cx)
1681                                    .detach_and_log_err(cx),
1682                                HistoryEntryId::Context(path) => this
1683                                    .open_saved_prompt_editor(path.clone(), window, cx)
1684                                    .detach_and_log_err(cx),
1685                            })
1686                            .ok();
1687                    }
1688                },
1689                IconName::Close,
1690                "Close Entry".into(),
1691                {
1692                    let panel = panel.downgrade();
1693                    let id = id.clone();
1694                    move |_window, cx| {
1695                        panel
1696                            .update(cx, |this, cx| {
1697                                this.history_store.update(cx, |history_store, cx| {
1698                                    history_store.remove_recently_opened_entry(&id, cx);
1699                                });
1700                            })
1701                            .ok();
1702                    }
1703                },
1704            );
1705        }
1706
1707        menu = menu.separator();
1708
1709        menu
1710    }
1711
1712    fn populate_recently_opened_menu_section_new(
1713        mut menu: ContextMenu,
1714        panel: Entity<Self>,
1715        cx: &mut Context<ContextMenu>,
1716    ) -> ContextMenu {
1717        let entries = panel
1718            .read(cx)
1719            .acp_history_store
1720            .read(cx)
1721            .recently_opened_entries(cx);
1722
1723        if entries.is_empty() {
1724            return menu;
1725        }
1726
1727        menu = menu.header("Recently Opened");
1728
1729        for entry in entries {
1730            let title = entry.title().clone();
1731
1732            menu = menu.entry_with_end_slot_on_hover(
1733                title,
1734                None,
1735                {
1736                    let panel = panel.downgrade();
1737                    let entry = entry.clone();
1738                    move |window, cx| {
1739                        let entry = entry.clone();
1740                        panel
1741                            .update(cx, move |this, cx| match &entry {
1742                                agent2::HistoryEntry::AcpThread(entry) => this.external_thread(
1743                                    Some(ExternalAgent::NativeAgent),
1744                                    Some(entry.clone()),
1745                                    window,
1746                                    cx,
1747                                ),
1748                                agent2::HistoryEntry::TextThread(entry) => this
1749                                    .open_saved_prompt_editor(entry.path.clone(), window, cx)
1750                                    .detach_and_log_err(cx),
1751                            })
1752                            .ok();
1753                    }
1754                },
1755                IconName::Close,
1756                "Close Entry".into(),
1757                {
1758                    let panel = panel.downgrade();
1759                    let id = entry.id();
1760                    move |_window, cx| {
1761                        panel
1762                            .update(cx, |this, cx| {
1763                                this.acp_history_store.update(cx, |history_store, cx| {
1764                                    history_store.remove_recently_opened_entry(&id, cx);
1765                                });
1766                            })
1767                            .ok();
1768                    }
1769                },
1770            );
1771        }
1772
1773        menu = menu.separator();
1774
1775        menu
1776    }
1777
1778    pub fn set_selected_agent(
1779        &mut self,
1780        agent: AgentType,
1781        window: &mut Window,
1782        cx: &mut Context<Self>,
1783    ) {
1784        if self.selected_agent != agent {
1785            self.selected_agent = agent;
1786            self.serialize(cx);
1787        }
1788        self.new_agent_thread(agent, window, cx);
1789    }
1790
1791    pub fn selected_agent(&self) -> AgentType {
1792        self.selected_agent
1793    }
1794
1795    pub fn new_agent_thread(
1796        &mut self,
1797        agent: AgentType,
1798        window: &mut Window,
1799        cx: &mut Context<Self>,
1800    ) {
1801        match agent {
1802            AgentType::Zed => {
1803                window.dispatch_action(
1804                    NewThread {
1805                        from_thread_id: None,
1806                    }
1807                    .boxed_clone(),
1808                    cx,
1809                );
1810            }
1811            AgentType::TextThread => {
1812                window.dispatch_action(NewTextThread.boxed_clone(), cx);
1813            }
1814            AgentType::NativeAgent => {
1815                self.external_thread(Some(crate::ExternalAgent::NativeAgent), None, window, cx)
1816            }
1817            AgentType::Gemini => {
1818                self.external_thread(Some(crate::ExternalAgent::Gemini), None, window, cx)
1819            }
1820            AgentType::ClaudeCode => {
1821                self.external_thread(Some(crate::ExternalAgent::ClaudeCode), None, window, cx)
1822            }
1823        }
1824    }
1825
1826    pub fn load_agent_thread(
1827        &mut self,
1828        thread: DbThreadMetadata,
1829        window: &mut Window,
1830        cx: &mut Context<Self>,
1831    ) {
1832        self.external_thread(Some(ExternalAgent::NativeAgent), Some(thread), window, cx);
1833    }
1834}
1835
1836impl Focusable for AgentPanel {
1837    fn focus_handle(&self, cx: &App) -> FocusHandle {
1838        match &self.active_view {
1839            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1840            ActiveView::ExternalAgentThread { thread_view, .. } => thread_view.focus_handle(cx),
1841            ActiveView::History => {
1842                if cx.has_flag::<feature_flags::GeminiAndNativeFeatureFlag>() {
1843                    self.acp_history.focus_handle(cx)
1844                } else {
1845                    self.history.focus_handle(cx)
1846                }
1847            }
1848            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1849            ActiveView::Configuration => {
1850                if let Some(configuration) = self.configuration.as_ref() {
1851                    configuration.focus_handle(cx)
1852                } else {
1853                    cx.focus_handle()
1854                }
1855            }
1856        }
1857    }
1858}
1859
1860fn agent_panel_dock_position(cx: &App) -> DockPosition {
1861    match AgentSettings::get_global(cx).dock {
1862        AgentDockPosition::Left => DockPosition::Left,
1863        AgentDockPosition::Bottom => DockPosition::Bottom,
1864        AgentDockPosition::Right => DockPosition::Right,
1865    }
1866}
1867
1868impl EventEmitter<PanelEvent> for AgentPanel {}
1869
1870impl Panel for AgentPanel {
1871    fn persistent_name() -> &'static str {
1872        "AgentPanel"
1873    }
1874
1875    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1876        agent_panel_dock_position(cx)
1877    }
1878
1879    fn position_is_valid(&self, position: DockPosition) -> bool {
1880        position != DockPosition::Bottom
1881    }
1882
1883    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1884        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1885            let dock = match position {
1886                DockPosition::Left => AgentDockPosition::Left,
1887                DockPosition::Bottom => AgentDockPosition::Bottom,
1888                DockPosition::Right => AgentDockPosition::Right,
1889            };
1890            settings.set_dock(dock);
1891        });
1892    }
1893
1894    fn size(&self, window: &Window, cx: &App) -> Pixels {
1895        let settings = AgentSettings::get_global(cx);
1896        match self.position(window, cx) {
1897            DockPosition::Left | DockPosition::Right => {
1898                self.width.unwrap_or(settings.default_width)
1899            }
1900            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1901        }
1902    }
1903
1904    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1905        match self.position(window, cx) {
1906            DockPosition::Left | DockPosition::Right => self.width = size,
1907            DockPosition::Bottom => self.height = size,
1908        }
1909        self.serialize(cx);
1910        cx.notify();
1911    }
1912
1913    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1914
1915    fn remote_id() -> Option<proto::PanelId> {
1916        Some(proto::PanelId::AssistantPanel)
1917    }
1918
1919    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1920        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1921    }
1922
1923    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1924        Some("Agent Panel")
1925    }
1926
1927    fn toggle_action(&self) -> Box<dyn Action> {
1928        Box::new(ToggleFocus)
1929    }
1930
1931    fn activation_priority(&self) -> u32 {
1932        3
1933    }
1934
1935    fn enabled(&self, cx: &App) -> bool {
1936        DisableAiSettings::get_global(cx).disable_ai.not() && AgentSettings::get_global(cx).enabled
1937    }
1938
1939    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1940        self.zoomed
1941    }
1942
1943    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1944        self.zoomed = zoomed;
1945        cx.notify();
1946    }
1947}
1948
1949impl AgentPanel {
1950    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1951        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1952
1953        let content = match &self.active_view {
1954            ActiveView::Thread {
1955                thread: active_thread,
1956                change_title_editor,
1957                ..
1958            } => {
1959                let state = {
1960                    let active_thread = active_thread.read(cx);
1961                    if active_thread.is_empty() {
1962                        &ThreadSummary::Pending
1963                    } else {
1964                        active_thread.summary(cx)
1965                    }
1966                };
1967
1968                match state {
1969                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1970                        .truncate()
1971                        .into_any_element(),
1972                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1973                        .truncate()
1974                        .into_any_element(),
1975                    ThreadSummary::Ready(_) => div()
1976                        .w_full()
1977                        .child(change_title_editor.clone())
1978                        .into_any_element(),
1979                    ThreadSummary::Error => h_flex()
1980                        .w_full()
1981                        .child(change_title_editor.clone())
1982                        .child(
1983                            IconButton::new("retry-summary-generation", IconName::RotateCcw)
1984                                .icon_size(IconSize::Small)
1985                                .on_click({
1986                                    let active_thread = active_thread.clone();
1987                                    move |_, _window, cx| {
1988                                        active_thread.update(cx, |thread, cx| {
1989                                            thread.regenerate_summary(cx);
1990                                        });
1991                                    }
1992                                })
1993                                .tooltip(move |_window, cx| {
1994                                    cx.new(|_| {
1995                                        Tooltip::new("Failed to generate title")
1996                                            .meta("Click to try again")
1997                                    })
1998                                    .into()
1999                                }),
2000                        )
2001                        .into_any_element(),
2002                }
2003            }
2004            ActiveView::ExternalAgentThread { thread_view } => {
2005                Label::new(thread_view.read(cx).title(cx))
2006                    .truncate()
2007                    .into_any_element()
2008            }
2009            ActiveView::TextThread {
2010                title_editor,
2011                context_editor,
2012                ..
2013            } => {
2014                let summary = context_editor.read(cx).context().read(cx).summary();
2015
2016                match summary {
2017                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
2018                        .truncate()
2019                        .into_any_element(),
2020                    ContextSummary::Content(summary) => {
2021                        if summary.done {
2022                            div()
2023                                .w_full()
2024                                .child(title_editor.clone())
2025                                .into_any_element()
2026                        } else {
2027                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
2028                                .truncate()
2029                                .into_any_element()
2030                        }
2031                    }
2032                    ContextSummary::Error => h_flex()
2033                        .w_full()
2034                        .child(title_editor.clone())
2035                        .child(
2036                            IconButton::new("retry-summary-generation", IconName::RotateCcw)
2037                                .icon_size(IconSize::Small)
2038                                .on_click({
2039                                    let context_editor = context_editor.clone();
2040                                    move |_, _window, cx| {
2041                                        context_editor.update(cx, |context_editor, cx| {
2042                                            context_editor.regenerate_summary(cx);
2043                                        });
2044                                    }
2045                                })
2046                                .tooltip(move |_window, cx| {
2047                                    cx.new(|_| {
2048                                        Tooltip::new("Failed to generate title")
2049                                            .meta("Click to try again")
2050                                    })
2051                                    .into()
2052                                }),
2053                        )
2054                        .into_any_element(),
2055                }
2056            }
2057            ActiveView::History => Label::new("History").truncate().into_any_element(),
2058            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
2059        };
2060
2061        h_flex()
2062            .key_context("TitleEditor")
2063            .id("TitleEditor")
2064            .flex_grow()
2065            .w_full()
2066            .max_w_full()
2067            .overflow_x_scroll()
2068            .child(content)
2069            .into_any()
2070    }
2071
2072    fn render_panel_options_menu(
2073        &self,
2074        window: &mut Window,
2075        cx: &mut Context<Self>,
2076    ) -> impl IntoElement {
2077        let user_store = self.user_store.read(cx);
2078        let usage = user_store.model_request_usage();
2079        let account_url = zed_urls::account_url(cx);
2080
2081        let focus_handle = self.focus_handle(cx);
2082
2083        let full_screen_label = if self.is_zoomed(window, cx) {
2084            "Disable Full Screen"
2085        } else {
2086            "Enable Full Screen"
2087        };
2088
2089        PopoverMenu::new("agent-options-menu")
2090            .trigger_with_tooltip(
2091                IconButton::new("agent-options-menu", IconName::Ellipsis)
2092                    .icon_size(IconSize::Small),
2093                {
2094                    let focus_handle = focus_handle.clone();
2095                    move |window, cx| {
2096                        Tooltip::for_action_in(
2097                            "Toggle Agent Menu",
2098                            &ToggleOptionsMenu,
2099                            &focus_handle,
2100                            window,
2101                            cx,
2102                        )
2103                    }
2104                },
2105            )
2106            .anchor(Corner::TopRight)
2107            .with_handle(self.agent_panel_menu_handle.clone())
2108            .menu({
2109                let focus_handle = focus_handle.clone();
2110                move |window, cx| {
2111                    Some(ContextMenu::build(window, cx, |mut menu, _window, _| {
2112                        menu = menu.context(focus_handle.clone());
2113                        if let Some(usage) = usage {
2114                            menu = menu
2115                                .header_with_link("Prompt Usage", "Manage", account_url.clone())
2116                                .custom_entry(
2117                                    move |_window, cx| {
2118                                        let used_percentage = match usage.limit {
2119                                            UsageLimit::Limited(limit) => {
2120                                                Some((usage.amount as f32 / limit as f32) * 100.)
2121                                            }
2122                                            UsageLimit::Unlimited => None,
2123                                        };
2124
2125                                        h_flex()
2126                                            .flex_1()
2127                                            .gap_1p5()
2128                                            .children(used_percentage.map(|percent| {
2129                                                ProgressBar::new("usage", percent, 100., cx)
2130                                            }))
2131                                            .child(
2132                                                Label::new(match usage.limit {
2133                                                    UsageLimit::Limited(limit) => {
2134                                                        format!("{} / {limit}", usage.amount)
2135                                                    }
2136                                                    UsageLimit::Unlimited => {
2137                                                        format!("{} / ∞", usage.amount)
2138                                                    }
2139                                                })
2140                                                .size(LabelSize::Small)
2141                                                .color(Color::Muted),
2142                                            )
2143                                            .into_any_element()
2144                                    },
2145                                    move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
2146                                )
2147                                .separator()
2148                        }
2149
2150                        menu = menu
2151                            .header("MCP Servers")
2152                            .action(
2153                                "View Server Extensions",
2154                                Box::new(zed_actions::Extensions {
2155                                    category_filter: Some(
2156                                        zed_actions::ExtensionCategoryFilter::ContextServers,
2157                                    ),
2158                                    id: None,
2159                                }),
2160                            )
2161                            .action("Add Custom Server…", Box::new(AddContextServer))
2162                            .separator();
2163
2164                        menu = menu
2165                            .action("Rules…", Box::new(OpenRulesLibrary::default()))
2166                            .action("Settings", Box::new(OpenSettings))
2167                            .separator()
2168                            .action(full_screen_label, Box::new(ToggleZoom));
2169                        menu
2170                    }))
2171                }
2172            })
2173    }
2174
2175    fn render_recent_entries_menu(
2176        &self,
2177        icon: IconName,
2178        corner: Corner,
2179        cx: &mut Context<Self>,
2180    ) -> impl IntoElement {
2181        let focus_handle = self.focus_handle(cx);
2182
2183        PopoverMenu::new("agent-nav-menu")
2184            .trigger_with_tooltip(
2185                IconButton::new("agent-nav-menu", icon).icon_size(IconSize::Small),
2186                {
2187                    let focus_handle = focus_handle.clone();
2188                    move |window, cx| {
2189                        Tooltip::for_action_in(
2190                            "Toggle Recent Threads",
2191                            &ToggleNavigationMenu,
2192                            &focus_handle,
2193                            window,
2194                            cx,
2195                        )
2196                    }
2197                },
2198            )
2199            .anchor(corner)
2200            .with_handle(self.assistant_navigation_menu_handle.clone())
2201            .menu({
2202                let menu = self.assistant_navigation_menu.clone();
2203                move |window, cx| {
2204                    if let Some(menu) = menu.as_ref() {
2205                        menu.update(cx, |_, cx| {
2206                            cx.defer_in(window, |menu, window, cx| {
2207                                menu.rebuild(window, cx);
2208                            });
2209                        })
2210                    }
2211                    menu.clone()
2212                }
2213            })
2214    }
2215
2216    fn render_toolbar_back_button(&self, cx: &mut Context<Self>) -> impl IntoElement {
2217        let focus_handle = self.focus_handle(cx);
2218
2219        IconButton::new("go-back", IconName::ArrowLeft)
2220            .icon_size(IconSize::Small)
2221            .on_click(cx.listener(|this, _, window, cx| {
2222                this.go_back(&workspace::GoBack, window, cx);
2223            }))
2224            .tooltip({
2225                let focus_handle = focus_handle.clone();
2226
2227                move |window, cx| {
2228                    Tooltip::for_action_in("Go Back", &workspace::GoBack, &focus_handle, window, cx)
2229                }
2230            })
2231    }
2232
2233    fn render_toolbar_old(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2234        let focus_handle = self.focus_handle(cx);
2235
2236        let active_thread = match &self.active_view {
2237            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2238            ActiveView::ExternalAgentThread { .. }
2239            | ActiveView::TextThread { .. }
2240            | ActiveView::History
2241            | ActiveView::Configuration => None,
2242        };
2243
2244        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2245            .trigger_with_tooltip(
2246                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2247                Tooltip::text("New Thread…"),
2248            )
2249            .anchor(Corner::TopRight)
2250            .with_handle(self.new_thread_menu_handle.clone())
2251            .menu({
2252                let focus_handle = focus_handle.clone();
2253                move |window, cx| {
2254                    let active_thread = active_thread.clone();
2255                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2256                        menu = menu
2257                            .context(focus_handle.clone())
2258                            .when_some(active_thread, |this, active_thread| {
2259                                let thread = active_thread.read(cx);
2260
2261                                if !thread.is_empty() {
2262                                    let thread_id = thread.id().clone();
2263                                    this.item(
2264                                        ContextMenuEntry::new("New From Summary")
2265                                            .icon(IconName::ThreadFromSummary)
2266                                            .icon_color(Color::Muted)
2267                                            .handler(move |window, cx| {
2268                                                window.dispatch_action(
2269                                                    Box::new(NewThread {
2270                                                        from_thread_id: Some(thread_id.clone()),
2271                                                    }),
2272                                                    cx,
2273                                                );
2274                                            }),
2275                                    )
2276                                } else {
2277                                    this
2278                                }
2279                            })
2280                            .item(
2281                                ContextMenuEntry::new("New Thread")
2282                                    .icon(IconName::Thread)
2283                                    .icon_color(Color::Muted)
2284                                    .action(NewThread::default().boxed_clone())
2285                                    .handler(move |window, cx| {
2286                                        window.dispatch_action(
2287                                            NewThread::default().boxed_clone(),
2288                                            cx,
2289                                        );
2290                                    }),
2291                            )
2292                            .item(
2293                                ContextMenuEntry::new("New Text Thread")
2294                                    .icon(IconName::TextThread)
2295                                    .icon_color(Color::Muted)
2296                                    .action(NewTextThread.boxed_clone())
2297                                    .handler(move |window, cx| {
2298                                        window.dispatch_action(NewTextThread.boxed_clone(), cx);
2299                                    }),
2300                            );
2301                        menu
2302                    }))
2303                }
2304            });
2305
2306        h_flex()
2307            .id("assistant-toolbar")
2308            .h(Tab::container_height(cx))
2309            .max_w_full()
2310            .flex_none()
2311            .justify_between()
2312            .gap_2()
2313            .bg(cx.theme().colors().tab_bar_background)
2314            .border_b_1()
2315            .border_color(cx.theme().colors().border)
2316            .child(
2317                h_flex()
2318                    .size_full()
2319                    .pl_1()
2320                    .gap_1()
2321                    .child(match &self.active_view {
2322                        ActiveView::History | ActiveView::Configuration => div()
2323                            .pl(DynamicSpacing::Base04.rems(cx))
2324                            .child(self.render_toolbar_back_button(cx))
2325                            .into_any_element(),
2326                        _ => self
2327                            .render_recent_entries_menu(IconName::MenuAlt, Corner::TopLeft, cx)
2328                            .into_any_element(),
2329                    })
2330                    .child(self.render_title_view(window, cx)),
2331            )
2332            .child(
2333                h_flex()
2334                    .h_full()
2335                    .gap_2()
2336                    .children(self.render_token_count(cx))
2337                    .child(
2338                        h_flex()
2339                            .h_full()
2340                            .gap(DynamicSpacing::Base02.rems(cx))
2341                            .px(DynamicSpacing::Base08.rems(cx))
2342                            .border_l_1()
2343                            .border_color(cx.theme().colors().border)
2344                            .child(new_thread_menu)
2345                            .child(self.render_panel_options_menu(window, cx)),
2346                    ),
2347            )
2348    }
2349
2350    fn render_toolbar_new(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2351        let focus_handle = self.focus_handle(cx);
2352
2353        let active_thread = match &self.active_view {
2354            ActiveView::Thread { thread, .. } => Some(thread.read(cx).thread().clone()),
2355            ActiveView::ExternalAgentThread { .. }
2356            | ActiveView::TextThread { .. }
2357            | ActiveView::History
2358            | ActiveView::Configuration => None,
2359        };
2360
2361        let new_thread_menu = PopoverMenu::new("new_thread_menu")
2362            .trigger_with_tooltip(
2363                IconButton::new("new_thread_menu_btn", IconName::Plus).icon_size(IconSize::Small),
2364                {
2365                    let focus_handle = focus_handle.clone();
2366                    move |window, cx| {
2367                        Tooltip::for_action_in(
2368                            "New…",
2369                            &ToggleNewThreadMenu,
2370                            &focus_handle,
2371                            window,
2372                            cx,
2373                        )
2374                    }
2375                },
2376            )
2377            .anchor(Corner::TopLeft)
2378            .with_handle(self.new_thread_menu_handle.clone())
2379            .menu({
2380                let focus_handle = focus_handle.clone();
2381                let workspace = self.workspace.clone();
2382
2383                move |window, cx| {
2384                    let active_thread = active_thread.clone();
2385                    Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
2386                        menu = menu
2387                            .context(focus_handle.clone())
2388                            .header("Zed Agent")
2389                            .when_some(active_thread, |this, active_thread| {
2390                                let thread = active_thread.read(cx);
2391
2392                                if !thread.is_empty() {
2393                                    let thread_id = thread.id().clone();
2394                                    this.item(
2395                                        ContextMenuEntry::new("New From Summary")
2396                                            .icon(IconName::ThreadFromSummary)
2397                                            .icon_color(Color::Muted)
2398                                            .handler(move |window, cx| {
2399                                                window.dispatch_action(
2400                                                    Box::new(NewThread {
2401                                                        from_thread_id: Some(thread_id.clone()),
2402                                                    }),
2403                                                    cx,
2404                                                );
2405                                            }),
2406                                    )
2407                                } else {
2408                                    this
2409                                }
2410                            })
2411                            .item(
2412                                ContextMenuEntry::new("New Thread")
2413                                    .action(NewThread::default().boxed_clone())
2414                                    .icon(IconName::Thread)
2415                                    .icon_color(Color::Muted)
2416                                    .handler({
2417                                        let workspace = workspace.clone();
2418                                        move |window, cx| {
2419                                            if let Some(workspace) = workspace.upgrade() {
2420                                                workspace.update(cx, |workspace, cx| {
2421                                                    if let Some(panel) =
2422                                                        workspace.panel::<AgentPanel>(cx)
2423                                                    {
2424                                                        panel.update(cx, |panel, cx| {
2425                                                            panel.set_selected_agent(
2426                                                                AgentType::NativeAgent,
2427                                                                window,
2428                                                                cx,
2429                                                            );
2430                                                        });
2431                                                    }
2432                                                });
2433                                            }
2434                                        }
2435                                    }),
2436                            )
2437                            .item(
2438                                ContextMenuEntry::new("New Text Thread")
2439                                    .icon(IconName::TextThread)
2440                                    .icon_color(Color::Muted)
2441                                    .action(NewTextThread.boxed_clone())
2442                                    .handler({
2443                                        let workspace = workspace.clone();
2444                                        move |window, cx| {
2445                                            if let Some(workspace) = workspace.upgrade() {
2446                                                workspace.update(cx, |workspace, cx| {
2447                                                    if let Some(panel) =
2448                                                        workspace.panel::<AgentPanel>(cx)
2449                                                    {
2450                                                        panel.update(cx, |panel, cx| {
2451                                                            panel.set_selected_agent(
2452                                                                AgentType::TextThread,
2453                                                                window,
2454                                                                cx,
2455                                                            );
2456                                                        });
2457                                                    }
2458                                                });
2459                                            }
2460                                        }
2461                                    }),
2462                            )
2463                            .separator()
2464                            .header("External Agents")
2465                            .when(cx.has_flag::<GeminiAndNativeFeatureFlag>(), |menu| {
2466                                menu.item(
2467                                    ContextMenuEntry::new("New Gemini CLI Thread")
2468                                        .icon(IconName::AiGemini)
2469                                        .icon_color(Color::Muted)
2470                                        .handler({
2471                                            let workspace = workspace.clone();
2472                                            move |window, cx| {
2473                                                if let Some(workspace) = workspace.upgrade() {
2474                                                    workspace.update(cx, |workspace, cx| {
2475                                                        if let Some(panel) =
2476                                                            workspace.panel::<AgentPanel>(cx)
2477                                                        {
2478                                                            panel.update(cx, |panel, cx| {
2479                                                                panel.set_selected_agent(
2480                                                                    AgentType::Gemini,
2481                                                                    window,
2482                                                                    cx,
2483                                                                );
2484                                                            });
2485                                                        }
2486                                                    });
2487                                                }
2488                                            }
2489                                        }),
2490                                )
2491                            })
2492                            .when(cx.has_flag::<ClaudeCodeFeatureFlag>(), |menu| {
2493                                menu.item(
2494                                    ContextMenuEntry::new("New Claude Code Thread")
2495                                        .icon(IconName::AiClaude)
2496                                        .icon_color(Color::Muted)
2497                                        .handler({
2498                                            let workspace = workspace.clone();
2499                                            move |window, cx| {
2500                                                if let Some(workspace) = workspace.upgrade() {
2501                                                    workspace.update(cx, |workspace, cx| {
2502                                                        if let Some(panel) =
2503                                                            workspace.panel::<AgentPanel>(cx)
2504                                                        {
2505                                                            panel.update(cx, |panel, cx| {
2506                                                                panel.set_selected_agent(
2507                                                                    AgentType::ClaudeCode,
2508                                                                    window,
2509                                                                    cx,
2510                                                                );
2511                                                            });
2512                                                        }
2513                                                    });
2514                                                }
2515                                            }
2516                                        }),
2517                                )
2518                            });
2519                        menu
2520                    }))
2521                }
2522            });
2523
2524        let selected_agent_label = self.selected_agent.label().into();
2525        let selected_agent = div()
2526            .id("selected_agent_icon")
2527            .when_some(self.selected_agent.icon(), |this, icon| {
2528                this.px(DynamicSpacing::Base02.rems(cx))
2529                    .child(Icon::new(icon).color(Color::Muted))
2530                    .tooltip(move |window, cx| {
2531                        Tooltip::with_meta(
2532                            selected_agent_label.clone(),
2533                            None,
2534                            "Selected Agent",
2535                            window,
2536                            cx,
2537                        )
2538                    })
2539            })
2540            .into_any_element();
2541
2542        h_flex()
2543            .id("agent-panel-toolbar")
2544            .h(Tab::container_height(cx))
2545            .max_w_full()
2546            .flex_none()
2547            .justify_between()
2548            .gap_2()
2549            .bg(cx.theme().colors().tab_bar_background)
2550            .border_b_1()
2551            .border_color(cx.theme().colors().border)
2552            .child(
2553                h_flex()
2554                    .size_full()
2555                    .gap(DynamicSpacing::Base04.rems(cx))
2556                    .pl(DynamicSpacing::Base04.rems(cx))
2557                    .child(match &self.active_view {
2558                        ActiveView::History | ActiveView::Configuration => {
2559                            self.render_toolbar_back_button(cx).into_any_element()
2560                        }
2561                        _ => selected_agent.into_any_element(),
2562                    })
2563                    .child(self.render_title_view(window, cx)),
2564            )
2565            .child(
2566                h_flex()
2567                    .flex_none()
2568                    .gap(DynamicSpacing::Base02.rems(cx))
2569                    .pl(DynamicSpacing::Base04.rems(cx))
2570                    .pr(DynamicSpacing::Base06.rems(cx))
2571                    .child(new_thread_menu)
2572                    .child(self.render_recent_entries_menu(
2573                        IconName::MenuAltTemp,
2574                        Corner::TopRight,
2575                        cx,
2576                    ))
2577                    .child(self.render_panel_options_menu(window, cx)),
2578            )
2579    }
2580
2581    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2582        if cx.has_flag::<feature_flags::GeminiAndNativeFeatureFlag>()
2583            || cx.has_flag::<feature_flags::ClaudeCodeFeatureFlag>()
2584        {
2585            self.render_toolbar_new(window, cx).into_any_element()
2586        } else {
2587            self.render_toolbar_old(window, cx).into_any_element()
2588        }
2589    }
2590
2591    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
2592        match &self.active_view {
2593            ActiveView::Thread {
2594                thread,
2595                message_editor,
2596                ..
2597            } => {
2598                let active_thread = thread.read(cx);
2599                let message_editor = message_editor.read(cx);
2600
2601                let editor_empty = message_editor.is_editor_fully_empty(cx);
2602
2603                if active_thread.is_empty() && editor_empty {
2604                    return None;
2605                }
2606
2607                let thread = active_thread.thread().read(cx);
2608                let is_generating = thread.is_generating();
2609                let conversation_token_usage = thread.total_token_usage()?;
2610
2611                let (total_token_usage, is_estimating) =
2612                    if let Some((editing_message_id, unsent_tokens)) =
2613                        active_thread.editing_message_id()
2614                    {
2615                        let combined = thread
2616                            .token_usage_up_to_message(editing_message_id)
2617                            .add(unsent_tokens);
2618
2619                        (combined, unsent_tokens > 0)
2620                    } else {
2621                        let unsent_tokens =
2622                            message_editor.last_estimated_token_count().unwrap_or(0);
2623                        let combined = conversation_token_usage.add(unsent_tokens);
2624
2625                        (combined, unsent_tokens > 0)
2626                    };
2627
2628                let is_waiting_to_update_token_count =
2629                    message_editor.is_waiting_to_update_token_count();
2630
2631                if total_token_usage.total == 0 {
2632                    return None;
2633                }
2634
2635                let token_color = match total_token_usage.ratio() {
2636                    TokenUsageRatio::Normal if is_estimating => Color::Default,
2637                    TokenUsageRatio::Normal => Color::Muted,
2638                    TokenUsageRatio::Warning => Color::Warning,
2639                    TokenUsageRatio::Exceeded => Color::Error,
2640                };
2641
2642                let token_count = h_flex()
2643                    .id("token-count")
2644                    .flex_shrink_0()
2645                    .gap_0p5()
2646                    .when(!is_generating && is_estimating, |parent| {
2647                        parent
2648                            .child(
2649                                h_flex()
2650                                    .mr_1()
2651                                    .size_2p5()
2652                                    .justify_center()
2653                                    .rounded_full()
2654                                    .bg(cx.theme().colors().text.opacity(0.1))
2655                                    .child(
2656                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
2657                                    ),
2658                            )
2659                            .tooltip(move |window, cx| {
2660                                Tooltip::with_meta(
2661                                    "Estimated New Token Count",
2662                                    None,
2663                                    format!(
2664                                        "Current Conversation Tokens: {}",
2665                                        humanize_token_count(conversation_token_usage.total)
2666                                    ),
2667                                    window,
2668                                    cx,
2669                                )
2670                            })
2671                    })
2672                    .child(
2673                        Label::new(humanize_token_count(total_token_usage.total))
2674                            .size(LabelSize::Small)
2675                            .color(token_color)
2676                            .map(|label| {
2677                                if is_generating || is_waiting_to_update_token_count {
2678                                    label
2679                                        .with_animation(
2680                                            "used-tokens-label",
2681                                            Animation::new(Duration::from_secs(2))
2682                                                .repeat()
2683                                                .with_easing(pulsating_between(0.6, 1.)),
2684                                            |label, delta| label.alpha(delta),
2685                                        )
2686                                        .into_any()
2687                                } else {
2688                                    label.into_any_element()
2689                                }
2690                            }),
2691                    )
2692                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
2693                    .child(
2694                        Label::new(humanize_token_count(total_token_usage.max))
2695                            .size(LabelSize::Small)
2696                            .color(Color::Muted),
2697                    )
2698                    .into_any();
2699
2700                Some(token_count)
2701            }
2702            ActiveView::TextThread { context_editor, .. } => {
2703                let element = render_remaining_tokens(context_editor, cx)?;
2704
2705                Some(element.into_any_element())
2706            }
2707            ActiveView::ExternalAgentThread { .. }
2708            | ActiveView::History
2709            | ActiveView::Configuration => None,
2710        }
2711    }
2712
2713    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2714        if TrialEndUpsell::dismissed() {
2715            return false;
2716        }
2717
2718        match &self.active_view {
2719            ActiveView::Thread { thread, .. } => {
2720                if thread
2721                    .read(cx)
2722                    .thread()
2723                    .read(cx)
2724                    .configured_model()
2725                    .is_some_and(|model| {
2726                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2727                    })
2728                {
2729                    return false;
2730                }
2731            }
2732            ActiveView::TextThread { .. } => {
2733                if LanguageModelRegistry::global(cx)
2734                    .read(cx)
2735                    .default_model()
2736                    .is_some_and(|model| {
2737                        model.provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2738                    })
2739                {
2740                    return false;
2741                }
2742            }
2743            ActiveView::ExternalAgentThread { .. }
2744            | ActiveView::History
2745            | ActiveView::Configuration => return false,
2746        }
2747
2748        let plan = self.user_store.read(cx).plan();
2749        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2750
2751        matches!(plan, Some(Plan::ZedFree)) && has_previous_trial
2752    }
2753
2754    fn should_render_onboarding(&self, cx: &mut Context<Self>) -> bool {
2755        if OnboardingUpsell::dismissed() {
2756            return false;
2757        }
2758
2759        match &self.active_view {
2760            ActiveView::History | ActiveView::Configuration => false,
2761            ActiveView::ExternalAgentThread { thread_view, .. }
2762                if thread_view.read(cx).as_native_thread(cx).is_none() =>
2763            {
2764                false
2765            }
2766            _ => {
2767                let history_is_empty = if cx.has_flag::<GeminiAndNativeFeatureFlag>() {
2768                    self.acp_history_store.read(cx).is_empty(cx)
2769                } else {
2770                    self.history_store
2771                        .update(cx, |store, cx| store.recent_entries(1, cx).is_empty())
2772                };
2773
2774                let has_configured_non_zed_providers = LanguageModelRegistry::read_global(cx)
2775                    .providers()
2776                    .iter()
2777                    .any(|provider| {
2778                        provider.is_authenticated(cx)
2779                            && provider.id() != language_model::ZED_CLOUD_PROVIDER_ID
2780                    });
2781
2782                history_is_empty || !has_configured_non_zed_providers
2783            }
2784        }
2785    }
2786
2787    fn render_onboarding(
2788        &self,
2789        _window: &mut Window,
2790        cx: &mut Context<Self>,
2791    ) -> Option<impl IntoElement> {
2792        if !self.should_render_onboarding(cx) {
2793            return None;
2794        }
2795
2796        let thread_view = matches!(&self.active_view, ActiveView::Thread { .. });
2797        let text_thread_view = matches!(&self.active_view, ActiveView::TextThread { .. });
2798
2799        Some(
2800            div()
2801                .when(thread_view, |this| {
2802                    this.size_full().bg(cx.theme().colors().panel_background)
2803                })
2804                .when(text_thread_view, |this| {
2805                    this.bg(cx.theme().colors().editor_background)
2806                })
2807                .child(self.onboarding.clone()),
2808        )
2809    }
2810
2811    fn render_backdrop(&self, cx: &mut Context<Self>) -> impl IntoElement {
2812        div()
2813            .size_full()
2814            .absolute()
2815            .inset_0()
2816            .bg(cx.theme().colors().panel_background)
2817            .opacity(0.8)
2818            .block_mouse_except_scroll()
2819    }
2820
2821    fn render_trial_end_upsell(
2822        &self,
2823        _window: &mut Window,
2824        cx: &mut Context<Self>,
2825    ) -> Option<impl IntoElement> {
2826        if !self.should_render_trial_end_upsell(cx) {
2827            return None;
2828        }
2829
2830        Some(
2831            v_flex()
2832                .absolute()
2833                .inset_0()
2834                .size_full()
2835                .bg(cx.theme().colors().panel_background)
2836                .opacity(0.85)
2837                .block_mouse_except_scroll()
2838                .child(EndTrialUpsell::new(Arc::new({
2839                    let this = cx.entity();
2840                    move |_, cx| {
2841                        this.update(cx, |_this, cx| {
2842                            TrialEndUpsell::set_dismissed(true, cx);
2843                            cx.notify();
2844                        });
2845                    }
2846                }))),
2847        )
2848    }
2849
2850    fn render_empty_state_section_header(
2851        &self,
2852        label: impl Into<SharedString>,
2853        action_slot: Option<AnyElement>,
2854        cx: &mut Context<Self>,
2855    ) -> impl IntoElement {
2856        div().pl_1().pr_1p5().child(
2857            h_flex()
2858                .mt_2()
2859                .pl_1p5()
2860                .pb_1()
2861                .w_full()
2862                .justify_between()
2863                .border_b_1()
2864                .border_color(cx.theme().colors().border_variant)
2865                .child(
2866                    Label::new(label.into())
2867                        .size(LabelSize::Small)
2868                        .color(Color::Muted),
2869                )
2870                .children(action_slot),
2871        )
2872    }
2873
2874    fn render_thread_empty_state(
2875        &self,
2876        window: &mut Window,
2877        cx: &mut Context<Self>,
2878    ) -> impl IntoElement {
2879        let recent_history = self
2880            .history_store
2881            .update(cx, |this, cx| this.recent_entries(6, cx));
2882
2883        let model_registry = LanguageModelRegistry::read_global(cx);
2884
2885        let configuration_error =
2886            model_registry.configuration_error(model_registry.default_model(), cx);
2887
2888        let no_error = configuration_error.is_none();
2889        let focus_handle = self.focus_handle(cx);
2890
2891        v_flex()
2892            .size_full()
2893            .bg(cx.theme().colors().panel_background)
2894            .when(recent_history.is_empty(), |this| {
2895                this.child(
2896                    v_flex()
2897                        .size_full()
2898                        .mx_auto()
2899                        .justify_center()
2900                        .items_center()
2901                        .gap_1()
2902                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2903                        .when(no_error, |parent| {
2904                            parent
2905                                .child(h_flex().child(
2906                                    Label::new("Ask and build anything.").color(Color::Muted),
2907                                ))
2908                                .child(
2909                                    v_flex()
2910                                        .mt_2()
2911                                        .gap_1()
2912                                        .max_w_48()
2913                                        .child(
2914                                            Button::new("context", "Add Context")
2915                                                .label_size(LabelSize::Small)
2916                                                .icon(IconName::FileCode)
2917                                                .icon_position(IconPosition::Start)
2918                                                .icon_size(IconSize::Small)
2919                                                .icon_color(Color::Muted)
2920                                                .full_width()
2921                                                .key_binding(KeyBinding::for_action_in(
2922                                                    &ToggleContextPicker,
2923                                                    &focus_handle,
2924                                                    window,
2925                                                    cx,
2926                                                ))
2927                                                .on_click(|_event, window, cx| {
2928                                                    window.dispatch_action(
2929                                                        ToggleContextPicker.boxed_clone(),
2930                                                        cx,
2931                                                    )
2932                                                }),
2933                                        )
2934                                        .child(
2935                                            Button::new("mode", "Switch Model")
2936                                                .label_size(LabelSize::Small)
2937                                                .icon(IconName::DatabaseZap)
2938                                                .icon_position(IconPosition::Start)
2939                                                .icon_size(IconSize::Small)
2940                                                .icon_color(Color::Muted)
2941                                                .full_width()
2942                                                .key_binding(KeyBinding::for_action_in(
2943                                                    &ToggleModelSelector,
2944                                                    &focus_handle,
2945                                                    window,
2946                                                    cx,
2947                                                ))
2948                                                .on_click(|_event, window, cx| {
2949                                                    window.dispatch_action(
2950                                                        ToggleModelSelector.boxed_clone(),
2951                                                        cx,
2952                                                    )
2953                                                }),
2954                                        )
2955                                        .child(
2956                                            Button::new("settings", "View Settings")
2957                                                .label_size(LabelSize::Small)
2958                                                .icon(IconName::Settings)
2959                                                .icon_position(IconPosition::Start)
2960                                                .icon_size(IconSize::Small)
2961                                                .icon_color(Color::Muted)
2962                                                .full_width()
2963                                                .key_binding(KeyBinding::for_action_in(
2964                                                    &OpenSettings,
2965                                                    &focus_handle,
2966                                                    window,
2967                                                    cx,
2968                                                ))
2969                                                .on_click(|_event, window, cx| {
2970                                                    window.dispatch_action(
2971                                                        OpenSettings.boxed_clone(),
2972                                                        cx,
2973                                                    )
2974                                                }),
2975                                        ),
2976                                )
2977                        }),
2978                )
2979            })
2980            .when(!recent_history.is_empty(), |parent| {
2981                parent
2982                    .overflow_hidden()
2983                    .justify_end()
2984                    .gap_1()
2985                    .child(
2986                        self.render_empty_state_section_header(
2987                            "Recent",
2988                            Some(
2989                                Button::new("view-history", "View All")
2990                                    .style(ButtonStyle::Subtle)
2991                                    .label_size(LabelSize::Small)
2992                                    .key_binding(
2993                                        KeyBinding::for_action_in(
2994                                            &OpenHistory,
2995                                            &self.focus_handle(cx),
2996                                            window,
2997                                            cx,
2998                                        )
2999                                        .map(|kb| kb.size(rems_from_px(12.))),
3000                                    )
3001                                    .on_click(move |_event, window, cx| {
3002                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
3003                                    })
3004                                    .into_any_element(),
3005                            ),
3006                            cx,
3007                        ),
3008                    )
3009                    .child(
3010                        v_flex().p_1().pr_1p5().gap_1().children(
3011                            recent_history
3012                                .into_iter()
3013                                .enumerate()
3014                                .map(|(index, entry)| {
3015                                    // TODO: Add keyboard navigation.
3016                                    let is_hovered =
3017                                        self.hovered_recent_history_item == Some(index);
3018                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
3019                                        .hovered(is_hovered)
3020                                        .on_hover(cx.listener(
3021                                            move |this, is_hovered, _window, cx| {
3022                                                if *is_hovered {
3023                                                    this.hovered_recent_history_item = Some(index);
3024                                                } else if this.hovered_recent_history_item
3025                                                    == Some(index)
3026                                                {
3027                                                    this.hovered_recent_history_item = None;
3028                                                }
3029                                                cx.notify();
3030                                            },
3031                                        ))
3032                                        .into_any_element()
3033                                }),
3034                        ),
3035                    )
3036            })
3037            .when_some(configuration_error.as_ref(), |this, err| {
3038                this.child(self.render_configuration_error(false, err, &focus_handle, window, cx))
3039            })
3040    }
3041
3042    fn render_configuration_error(
3043        &self,
3044        border_bottom: bool,
3045        configuration_error: &ConfigurationError,
3046        focus_handle: &FocusHandle,
3047        window: &mut Window,
3048        cx: &mut App,
3049    ) -> impl IntoElement {
3050        let zed_provider_configured = AgentSettings::get_global(cx)
3051            .default_model
3052            .as_ref()
3053            .is_some_and(|selection| selection.provider.0.as_str() == "zed.dev");
3054
3055        let callout = if zed_provider_configured {
3056            Callout::new()
3057                .icon(IconName::Warning)
3058                .severity(Severity::Warning)
3059                .when(border_bottom, |this| {
3060                    this.border_position(ui::BorderPosition::Bottom)
3061                })
3062                .title("Sign in to continue using Zed as your LLM provider.")
3063                .actions_slot(
3064                    Button::new("sign_in", "Sign In")
3065                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
3066                        .label_size(LabelSize::Small)
3067                        .on_click({
3068                            let workspace = self.workspace.clone();
3069                            move |_, _, cx| {
3070                                let Ok(client) =
3071                                    workspace.update(cx, |workspace, _| workspace.client().clone())
3072                                else {
3073                                    return;
3074                                };
3075
3076                                cx.spawn(async move |cx| {
3077                                    client.sign_in_with_optional_connect(true, cx).await
3078                                })
3079                                .detach_and_log_err(cx);
3080                            }
3081                        }),
3082                )
3083        } else {
3084            Callout::new()
3085                .icon(IconName::Warning)
3086                .severity(Severity::Warning)
3087                .when(border_bottom, |this| {
3088                    this.border_position(ui::BorderPosition::Bottom)
3089                })
3090                .title(configuration_error.to_string())
3091                .actions_slot(
3092                    Button::new("settings", "Configure")
3093                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
3094                        .label_size(LabelSize::Small)
3095                        .key_binding(
3096                            KeyBinding::for_action_in(&OpenSettings, focus_handle, window, cx)
3097                                .map(|kb| kb.size(rems_from_px(12.))),
3098                        )
3099                        .on_click(|_event, window, cx| {
3100                            window.dispatch_action(OpenSettings.boxed_clone(), cx)
3101                        }),
3102                )
3103        };
3104
3105        match configuration_error {
3106            ConfigurationError::ModelNotFound
3107            | ConfigurationError::ProviderNotAuthenticated(_)
3108            | ConfigurationError::NoProvider => callout.into_any_element(),
3109            ConfigurationError::ProviderPendingTermsAcceptance(provider) => {
3110                Banner::new()
3111                    .severity(Severity::Warning)
3112                    .child(h_flex().w_full().children(
3113                        provider.render_accept_terms(
3114                            LanguageModelProviderTosView::ThreadEmptyState,
3115                            cx,
3116                        ),
3117                    ))
3118                    .into_any_element()
3119            }
3120        }
3121    }
3122
3123    fn render_tool_use_limit_reached(
3124        &self,
3125        window: &mut Window,
3126        cx: &mut Context<Self>,
3127    ) -> Option<AnyElement> {
3128        let active_thread = match &self.active_view {
3129            ActiveView::Thread { thread, .. } => thread,
3130            ActiveView::ExternalAgentThread { .. } => {
3131                return None;
3132            }
3133            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
3134                return None;
3135            }
3136        };
3137
3138        let thread = active_thread.read(cx).thread().read(cx);
3139
3140        let tool_use_limit_reached = thread.tool_use_limit_reached();
3141        if !tool_use_limit_reached {
3142            return None;
3143        }
3144
3145        let model = thread.configured_model()?.model;
3146
3147        let focus_handle = self.focus_handle(cx);
3148
3149        let banner = Banner::new()
3150            .severity(Severity::Info)
3151            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
3152            .action_slot(
3153                h_flex()
3154                    .gap_1()
3155                    .child(
3156                        Button::new("continue-conversation", "Continue")
3157                            .layer(ElevationIndex::ModalSurface)
3158                            .label_size(LabelSize::Small)
3159                            .key_binding(
3160                                KeyBinding::for_action_in(
3161                                    &ContinueThread,
3162                                    &focus_handle,
3163                                    window,
3164                                    cx,
3165                                )
3166                                .map(|kb| kb.size(rems_from_px(10.))),
3167                            )
3168                            .on_click(cx.listener(|this, _, window, cx| {
3169                                this.continue_conversation(window, cx);
3170                            })),
3171                    )
3172                    .when(model.supports_burn_mode(), |this| {
3173                        this.child(
3174                            Button::new("continue-burn-mode", "Continue with Burn Mode")
3175                                .style(ButtonStyle::Filled)
3176                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3177                                .layer(ElevationIndex::ModalSurface)
3178                                .label_size(LabelSize::Small)
3179                                .key_binding(
3180                                    KeyBinding::for_action_in(
3181                                        &ContinueWithBurnMode,
3182                                        &focus_handle,
3183                                        window,
3184                                        cx,
3185                                    )
3186                                    .map(|kb| kb.size(rems_from_px(10.))),
3187                                )
3188                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
3189                                .on_click({
3190                                    let active_thread = active_thread.clone();
3191                                    cx.listener(move |this, _, window, cx| {
3192                                        active_thread.update(cx, |active_thread, cx| {
3193                                            active_thread.thread().update(cx, |thread, _cx| {
3194                                                thread.set_completion_mode(CompletionMode::Burn);
3195                                            });
3196                                        });
3197                                        this.continue_conversation(window, cx);
3198                                    })
3199                                }),
3200                        )
3201                    }),
3202            );
3203
3204        Some(div().px_2().pb_2().child(banner).into_any_element())
3205    }
3206
3207    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
3208        let message = message.into();
3209
3210        IconButton::new("copy", IconName::Copy)
3211            .icon_size(IconSize::Small)
3212            .icon_color(Color::Muted)
3213            .tooltip(Tooltip::text("Copy Error Message"))
3214            .on_click(move |_, _, cx| {
3215                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
3216            })
3217    }
3218
3219    fn dismiss_error_button(
3220        &self,
3221        thread: &Entity<ActiveThread>,
3222        cx: &mut Context<Self>,
3223    ) -> impl IntoElement {
3224        IconButton::new("dismiss", IconName::Close)
3225            .icon_size(IconSize::Small)
3226            .icon_color(Color::Muted)
3227            .tooltip(Tooltip::text("Dismiss Error"))
3228            .on_click(cx.listener({
3229                let thread = thread.clone();
3230                move |_, _, _, cx| {
3231                    thread.update(cx, |this, _cx| {
3232                        this.clear_last_error();
3233                    });
3234
3235                    cx.notify();
3236                }
3237            }))
3238    }
3239
3240    fn upgrade_button(
3241        &self,
3242        thread: &Entity<ActiveThread>,
3243        cx: &mut Context<Self>,
3244    ) -> impl IntoElement {
3245        Button::new("upgrade", "Upgrade")
3246            .label_size(LabelSize::Small)
3247            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
3248            .on_click(cx.listener({
3249                let thread = thread.clone();
3250                move |_, _, _, cx| {
3251                    thread.update(cx, |this, _cx| {
3252                        this.clear_last_error();
3253                    });
3254
3255                    cx.open_url(&zed_urls::upgrade_to_zed_pro_url(cx));
3256                    cx.notify();
3257                }
3258            }))
3259    }
3260
3261    fn render_payment_required_error(
3262        &self,
3263        thread: &Entity<ActiveThread>,
3264        cx: &mut Context<Self>,
3265    ) -> AnyElement {
3266        const ERROR_MESSAGE: &str =
3267            "You reached your free usage limit. Upgrade to Zed Pro for more prompts.";
3268
3269        Callout::new()
3270            .severity(Severity::Error)
3271            .icon(IconName::XCircle)
3272            .title("Free Usage Exceeded")
3273            .description(ERROR_MESSAGE)
3274            .actions_slot(
3275                h_flex()
3276                    .gap_0p5()
3277                    .child(self.upgrade_button(thread, cx))
3278                    .child(self.create_copy_button(ERROR_MESSAGE)),
3279            )
3280            .dismiss_action(self.dismiss_error_button(thread, cx))
3281            .into_any_element()
3282    }
3283
3284    fn render_model_request_limit_reached_error(
3285        &self,
3286        plan: Plan,
3287        thread: &Entity<ActiveThread>,
3288        cx: &mut Context<Self>,
3289    ) -> AnyElement {
3290        let error_message = match plan {
3291            Plan::ZedPro => "Upgrade to usage-based billing for more prompts.",
3292            Plan::ZedProTrial | Plan::ZedFree => "Upgrade to Zed Pro for more prompts.",
3293        };
3294
3295        Callout::new()
3296            .severity(Severity::Error)
3297            .title("Model Prompt Limit Reached")
3298            .description(error_message)
3299            .actions_slot(
3300                h_flex()
3301                    .gap_0p5()
3302                    .child(self.upgrade_button(thread, cx))
3303                    .child(self.create_copy_button(error_message)),
3304            )
3305            .dismiss_action(self.dismiss_error_button(thread, cx))
3306            .into_any_element()
3307    }
3308
3309    fn render_retry_button(&self, thread: &Entity<ActiveThread>) -> AnyElement {
3310        Button::new("retry", "Retry")
3311            .icon(IconName::RotateCw)
3312            .icon_position(IconPosition::Start)
3313            .icon_size(IconSize::Small)
3314            .label_size(LabelSize::Small)
3315            .on_click({
3316                let thread = thread.clone();
3317                move |_, window, cx| {
3318                    thread.update(cx, |thread, cx| {
3319                        thread.clear_last_error();
3320                        thread.thread().update(cx, |thread, cx| {
3321                            thread.retry_last_completion(Some(window.window_handle()), cx);
3322                        });
3323                    });
3324                }
3325            })
3326            .into_any_element()
3327    }
3328
3329    fn render_error_message(
3330        &self,
3331        header: SharedString,
3332        message: SharedString,
3333        thread: &Entity<ActiveThread>,
3334        cx: &mut Context<Self>,
3335    ) -> AnyElement {
3336        let message_with_header = format!("{}\n{}", header, message);
3337
3338        Callout::new()
3339            .severity(Severity::Error)
3340            .icon(IconName::XCircle)
3341            .title(header)
3342            .description(message.clone())
3343            .actions_slot(
3344                h_flex()
3345                    .gap_0p5()
3346                    .child(self.render_retry_button(thread))
3347                    .child(self.create_copy_button(message_with_header)),
3348            )
3349            .dismiss_action(self.dismiss_error_button(thread, cx))
3350            .into_any_element()
3351    }
3352
3353    fn render_retryable_error(
3354        &self,
3355        message: SharedString,
3356        can_enable_burn_mode: bool,
3357        thread: &Entity<ActiveThread>,
3358    ) -> AnyElement {
3359        Callout::new()
3360            .severity(Severity::Error)
3361            .title("Error")
3362            .description(message.clone())
3363            .actions_slot(
3364                h_flex()
3365                    .gap_0p5()
3366                    .when(can_enable_burn_mode, |this| {
3367                        this.child(
3368                            Button::new("enable_burn_retry", "Enable Burn Mode and Retry")
3369                                .icon(IconName::ZedBurnMode)
3370                                .icon_position(IconPosition::Start)
3371                                .icon_size(IconSize::Small)
3372                                .label_size(LabelSize::Small)
3373                                .on_click({
3374                                    let thread = thread.clone();
3375                                    move |_, window, cx| {
3376                                        thread.update(cx, |thread, cx| {
3377                                            thread.clear_last_error();
3378                                            thread.thread().update(cx, |thread, cx| {
3379                                                thread.enable_burn_mode_and_retry(
3380                                                    Some(window.window_handle()),
3381                                                    cx,
3382                                                );
3383                                            });
3384                                        });
3385                                    }
3386                                }),
3387                        )
3388                    })
3389                    .child(self.render_retry_button(thread)),
3390            )
3391            .into_any_element()
3392    }
3393
3394    fn render_prompt_editor(
3395        &self,
3396        context_editor: &Entity<TextThreadEditor>,
3397        buffer_search_bar: &Entity<BufferSearchBar>,
3398        window: &mut Window,
3399        cx: &mut Context<Self>,
3400    ) -> Div {
3401        let mut registrar = buffer_search::DivRegistrar::new(
3402            |this, _, _cx| match &this.active_view {
3403                ActiveView::TextThread {
3404                    buffer_search_bar, ..
3405                } => Some(buffer_search_bar.clone()),
3406                _ => None,
3407            },
3408            cx,
3409        );
3410        BufferSearchBar::register(&mut registrar);
3411        registrar
3412            .into_div()
3413            .size_full()
3414            .relative()
3415            .map(|parent| {
3416                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
3417                    if buffer_search_bar.is_dismissed() {
3418                        return parent;
3419                    }
3420                    parent.child(
3421                        div()
3422                            .p(DynamicSpacing::Base08.rems(cx))
3423                            .border_b_1()
3424                            .border_color(cx.theme().colors().border_variant)
3425                            .bg(cx.theme().colors().editor_background)
3426                            .child(buffer_search_bar.render(window, cx)),
3427                    )
3428                })
3429            })
3430            .child(context_editor.clone())
3431            .child(self.render_drag_target(cx))
3432    }
3433
3434    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
3435        let is_local = self.project.read(cx).is_local();
3436        div()
3437            .invisible()
3438            .absolute()
3439            .top_0()
3440            .right_0()
3441            .bottom_0()
3442            .left_0()
3443            .bg(cx.theme().colors().drop_target_background)
3444            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
3445            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
3446            .when(is_local, |this| {
3447                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
3448            })
3449            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
3450                let item = tab.pane.read(cx).item_for_index(tab.ix);
3451                let project_paths = item
3452                    .and_then(|item| item.project_path(cx))
3453                    .into_iter()
3454                    .collect::<Vec<_>>();
3455                this.handle_drop(project_paths, vec![], window, cx);
3456            }))
3457            .on_drop(
3458                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
3459                    let project_paths = selection
3460                        .items()
3461                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
3462                        .collect::<Vec<_>>();
3463                    this.handle_drop(project_paths, vec![], window, cx);
3464                }),
3465            )
3466            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
3467                let tasks = paths
3468                    .paths()
3469                    .iter()
3470                    .map(|path| {
3471                        Workspace::project_path_for_path(this.project.clone(), path, false, cx)
3472                    })
3473                    .collect::<Vec<_>>();
3474                cx.spawn_in(window, async move |this, cx| {
3475                    let mut paths = vec![];
3476                    let mut added_worktrees = vec![];
3477                    let opened_paths = futures::future::join_all(tasks).await;
3478                    for entry in opened_paths {
3479                        if let Some((worktree, project_path)) = entry.log_err() {
3480                            added_worktrees.push(worktree);
3481                            paths.push(project_path);
3482                        }
3483                    }
3484                    this.update_in(cx, |this, window, cx| {
3485                        this.handle_drop(paths, added_worktrees, window, cx);
3486                    })
3487                    .ok();
3488                })
3489                .detach();
3490            }))
3491    }
3492
3493    fn handle_drop(
3494        &mut self,
3495        paths: Vec<ProjectPath>,
3496        added_worktrees: Vec<Entity<Worktree>>,
3497        window: &mut Window,
3498        cx: &mut Context<Self>,
3499    ) {
3500        match &self.active_view {
3501            ActiveView::Thread { thread, .. } => {
3502                let context_store = thread.read(cx).context_store().clone();
3503                context_store.update(cx, move |context_store, cx| {
3504                    let mut tasks = Vec::new();
3505                    for project_path in &paths {
3506                        tasks.push(context_store.add_file_from_path(
3507                            project_path.clone(),
3508                            false,
3509                            cx,
3510                        ));
3511                    }
3512                    cx.background_spawn(async move {
3513                        futures::future::join_all(tasks).await;
3514                        // Need to hold onto the worktrees until they have already been used when
3515                        // opening the buffers.
3516                        drop(added_worktrees);
3517                    })
3518                    .detach();
3519                });
3520            }
3521            ActiveView::ExternalAgentThread { thread_view } => {
3522                thread_view.update(cx, |thread_view, cx| {
3523                    thread_view.insert_dragged_files(paths, added_worktrees, window, cx);
3524                });
3525            }
3526            ActiveView::TextThread { context_editor, .. } => {
3527                context_editor.update(cx, |context_editor, cx| {
3528                    TextThreadEditor::insert_dragged_files(
3529                        context_editor,
3530                        paths,
3531                        added_worktrees,
3532                        window,
3533                        cx,
3534                    );
3535                });
3536            }
3537            ActiveView::History | ActiveView::Configuration => {}
3538        }
3539    }
3540
3541    fn key_context(&self) -> KeyContext {
3542        let mut key_context = KeyContext::new_with_defaults();
3543        key_context.add("AgentPanel");
3544        match &self.active_view {
3545            ActiveView::ExternalAgentThread { .. } => key_context.add("external_agent_thread"),
3546            ActiveView::TextThread { .. } => key_context.add("prompt_editor"),
3547            ActiveView::Thread { .. } | ActiveView::History | ActiveView::Configuration => {}
3548        }
3549        key_context
3550    }
3551}
3552
3553impl Render for AgentPanel {
3554    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3555        // WARNING: Changes to this element hierarchy can have
3556        // non-obvious implications to the layout of children.
3557        //
3558        // If you need to change it, please confirm:
3559        // - The message editor expands (cmd-option-esc) correctly
3560        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3561        // - Font size works as expected and can be changed with cmd-+/cmd-
3562        // - Scrolling in all views works as expected
3563        // - Files can be dropped into the panel
3564        let content = v_flex()
3565            .relative()
3566            .size_full()
3567            .justify_between()
3568            .key_context(self.key_context())
3569            .on_action(cx.listener(Self::cancel))
3570            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3571                this.new_thread(action, window, cx);
3572            }))
3573            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3574                this.open_history(window, cx);
3575            }))
3576            .on_action(cx.listener(|this, _: &OpenSettings, window, cx| {
3577                this.open_configuration(window, cx);
3578            }))
3579            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3580            .on_action(cx.listener(Self::deploy_rules_library))
3581            .on_action(cx.listener(Self::open_agent_diff))
3582            .on_action(cx.listener(Self::go_back))
3583            .on_action(cx.listener(Self::toggle_navigation_menu))
3584            .on_action(cx.listener(Self::toggle_options_menu))
3585            .on_action(cx.listener(Self::increase_font_size))
3586            .on_action(cx.listener(Self::decrease_font_size))
3587            .on_action(cx.listener(Self::reset_font_size))
3588            .on_action(cx.listener(Self::toggle_zoom))
3589            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3590                this.continue_conversation(window, cx);
3591            }))
3592            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3593                match &this.active_view {
3594                    ActiveView::Thread { thread, .. } => {
3595                        thread.update(cx, |active_thread, cx| {
3596                            active_thread.thread().update(cx, |thread, _cx| {
3597                                thread.set_completion_mode(CompletionMode::Burn);
3598                            });
3599                        });
3600                        this.continue_conversation(window, cx);
3601                    }
3602                    ActiveView::ExternalAgentThread { .. } => {}
3603                    ActiveView::TextThread { .. }
3604                    | ActiveView::History
3605                    | ActiveView::Configuration => {}
3606                }
3607            }))
3608            .on_action(cx.listener(Self::toggle_burn_mode))
3609            .child(self.render_toolbar(window, cx))
3610            .children(self.render_onboarding(window, cx))
3611            .map(|parent| match &self.active_view {
3612                ActiveView::Thread {
3613                    thread,
3614                    message_editor,
3615                    ..
3616                } => parent
3617                    .child(
3618                        if thread.read(cx).is_empty() && !self.should_render_onboarding(cx) {
3619                            self.render_thread_empty_state(window, cx)
3620                                .into_any_element()
3621                        } else {
3622                            thread.clone().into_any_element()
3623                        },
3624                    )
3625                    .children(self.render_tool_use_limit_reached(window, cx))
3626                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3627                        this.child(
3628                            div()
3629                                .child(match last_error {
3630                                    ThreadError::PaymentRequired => {
3631                                        self.render_payment_required_error(thread, cx)
3632                                    }
3633                                    ThreadError::ModelRequestLimitReached { plan } => self
3634                                        .render_model_request_limit_reached_error(plan, thread, cx),
3635                                    ThreadError::Message { header, message } => {
3636                                        self.render_error_message(header, message, thread, cx)
3637                                    }
3638                                    ThreadError::RetryableError {
3639                                        message,
3640                                        can_enable_burn_mode,
3641                                    } => self.render_retryable_error(
3642                                        message,
3643                                        can_enable_burn_mode,
3644                                        thread,
3645                                    ),
3646                                })
3647                                .into_any(),
3648                        )
3649                    })
3650                    .child(h_flex().relative().child(message_editor.clone()).when(
3651                        !LanguageModelRegistry::read_global(cx).has_authenticated_provider(cx),
3652                        |this| this.child(self.render_backdrop(cx)),
3653                    ))
3654                    .child(self.render_drag_target(cx)),
3655                ActiveView::ExternalAgentThread { thread_view, .. } => parent
3656                    .child(thread_view.clone())
3657                    .child(self.render_drag_target(cx)),
3658                ActiveView::History => {
3659                    if cx.has_flag::<feature_flags::GeminiAndNativeFeatureFlag>() {
3660                        parent.child(self.acp_history.clone())
3661                    } else {
3662                        parent.child(self.history.clone())
3663                    }
3664                }
3665                ActiveView::TextThread {
3666                    context_editor,
3667                    buffer_search_bar,
3668                    ..
3669                } => {
3670                    let model_registry = LanguageModelRegistry::read_global(cx);
3671                    let configuration_error =
3672                        model_registry.configuration_error(model_registry.default_model(), cx);
3673                    parent
3674                        .map(|this| {
3675                            if !self.should_render_onboarding(cx)
3676                                && let Some(err) = configuration_error.as_ref()
3677                            {
3678                                this.child(self.render_configuration_error(
3679                                    true,
3680                                    err,
3681                                    &self.focus_handle(cx),
3682                                    window,
3683                                    cx,
3684                                ))
3685                            } else {
3686                                this
3687                            }
3688                        })
3689                        .child(self.render_prompt_editor(
3690                            context_editor,
3691                            buffer_search_bar,
3692                            window,
3693                            cx,
3694                        ))
3695                }
3696                ActiveView::Configuration => parent.children(self.configuration.clone()),
3697            })
3698            .children(self.render_trial_end_upsell(window, cx));
3699
3700        match self.active_view.which_font_size_used() {
3701            WhichFontSize::AgentFont => {
3702                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3703                    .size_full()
3704                    .child(content)
3705                    .into_any()
3706            }
3707            _ => content.into_any(),
3708        }
3709    }
3710}
3711
3712struct PromptLibraryInlineAssist {
3713    workspace: WeakEntity<Workspace>,
3714}
3715
3716impl PromptLibraryInlineAssist {
3717    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3718        Self { workspace }
3719    }
3720}
3721
3722impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3723    fn assist(
3724        &self,
3725        prompt_editor: &Entity<Editor>,
3726        initial_prompt: Option<String>,
3727        window: &mut Window,
3728        cx: &mut Context<RulesLibrary>,
3729    ) {
3730        InlineAssistant::update_global(cx, |assistant, cx| {
3731            let Some(project) = self
3732                .workspace
3733                .upgrade()
3734                .map(|workspace| workspace.read(cx).project().downgrade())
3735            else {
3736                return;
3737            };
3738            let prompt_store = None;
3739            let thread_store = None;
3740            let text_thread_store = None;
3741            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3742            assistant.assist(
3743                prompt_editor,
3744                self.workspace.clone(),
3745                context_store,
3746                project,
3747                prompt_store,
3748                thread_store,
3749                text_thread_store,
3750                initial_prompt,
3751                window,
3752                cx,
3753            )
3754        })
3755    }
3756
3757    fn focus_agent_panel(
3758        &self,
3759        workspace: &mut Workspace,
3760        window: &mut Window,
3761        cx: &mut Context<Workspace>,
3762    ) -> bool {
3763        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3764    }
3765}
3766
3767pub struct ConcreteAssistantPanelDelegate;
3768
3769impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3770    fn active_context_editor(
3771        &self,
3772        workspace: &mut Workspace,
3773        _window: &mut Window,
3774        cx: &mut Context<Workspace>,
3775    ) -> Option<Entity<TextThreadEditor>> {
3776        let panel = workspace.panel::<AgentPanel>(cx)?;
3777        panel.read(cx).active_context_editor()
3778    }
3779
3780    fn open_saved_context(
3781        &self,
3782        workspace: &mut Workspace,
3783        path: Arc<Path>,
3784        window: &mut Window,
3785        cx: &mut Context<Workspace>,
3786    ) -> Task<Result<()>> {
3787        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3788            return Task::ready(Err(anyhow!("Agent panel not found")));
3789        };
3790
3791        panel.update(cx, |panel, cx| {
3792            panel.open_saved_prompt_editor(path, window, cx)
3793        })
3794    }
3795
3796    fn open_remote_context(
3797        &self,
3798        _workspace: &mut Workspace,
3799        _context_id: assistant_context::ContextId,
3800        _window: &mut Window,
3801        _cx: &mut Context<Workspace>,
3802    ) -> Task<Result<Entity<TextThreadEditor>>> {
3803        Task::ready(Err(anyhow!("opening remote context not implemented")))
3804    }
3805
3806    fn quote_selection(
3807        &self,
3808        workspace: &mut Workspace,
3809        selection_ranges: Vec<Range<Anchor>>,
3810        buffer: Entity<MultiBuffer>,
3811        window: &mut Window,
3812        cx: &mut Context<Workspace>,
3813    ) {
3814        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3815            return;
3816        };
3817
3818        if !panel.focus_handle(cx).contains_focused(window, cx) {
3819            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3820        }
3821
3822        panel.update(cx, |_, cx| {
3823            // Wait to create a new context until the workspace is no longer
3824            // being updated.
3825            cx.defer_in(window, move |panel, window, cx| {
3826                if let Some(message_editor) = panel.active_message_editor() {
3827                    message_editor.update(cx, |message_editor, cx| {
3828                        message_editor.context_store().update(cx, |store, cx| {
3829                            let buffer = buffer.read(cx);
3830                            let selection_ranges = selection_ranges
3831                                .into_iter()
3832                                .flat_map(|range| {
3833                                    let (start_buffer, start) =
3834                                        buffer.text_anchor_for_position(range.start, cx)?;
3835                                    let (end_buffer, end) =
3836                                        buffer.text_anchor_for_position(range.end, cx)?;
3837                                    if start_buffer != end_buffer {
3838                                        return None;
3839                                    }
3840                                    Some((start_buffer, start..end))
3841                                })
3842                                .collect::<Vec<_>>();
3843
3844                            for (buffer, range) in selection_ranges {
3845                                store.add_selection(buffer, range, cx);
3846                            }
3847                        })
3848                    })
3849                } else if let Some(context_editor) = panel.active_context_editor() {
3850                    let snapshot = buffer.read(cx).snapshot(cx);
3851                    let selection_ranges = selection_ranges
3852                        .into_iter()
3853                        .map(|range| range.to_point(&snapshot))
3854                        .collect::<Vec<_>>();
3855
3856                    context_editor.update(cx, |context_editor, cx| {
3857                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3858                    });
3859                }
3860            });
3861        });
3862    }
3863}
3864
3865struct OnboardingUpsell;
3866
3867impl Dismissable for OnboardingUpsell {
3868    const KEY: &'static str = "dismissed-trial-upsell";
3869}
3870
3871struct TrialEndUpsell;
3872
3873impl Dismissable for TrialEndUpsell {
3874    const KEY: &'static str = "dismissed-trial-end-upsell";
3875}