agent_panel.rs

   1use std::ops::Range;
   2use std::path::Path;
   3use std::rc::Rc;
   4use std::sync::Arc;
   5use std::time::Duration;
   6
   7use db::kvp::{Dismissable, KEY_VALUE_STORE};
   8use serde::{Deserialize, Serialize};
   9
  10use crate::language_model_selector::ToggleModelSelector;
  11use crate::{
  12    AddContextServer, AgentDiffPane, ContinueThread, ContinueWithBurnMode,
  13    DeleteRecentlyOpenThread, ExpandMessageEditor, Follow, InlineAssistant, NewTextThread,
  14    NewThread, OpenActiveThreadAsMarkdown, OpenAgentDiff, OpenHistory, ResetTrialEndUpsell,
  15    ResetTrialUpsell, ToggleBurnMode, ToggleContextPicker, ToggleNavigationMenu, ToggleOptionsMenu,
  16    active_thread::{self, ActiveThread, ActiveThreadEvent},
  17    agent_configuration::{AgentConfiguration, AssistantConfigurationEvent},
  18    agent_diff::AgentDiff,
  19    message_editor::{MessageEditor, MessageEditorEvent},
  20    slash_command::SlashCommandCompletionProvider,
  21    text_thread_editor::{
  22        AgentPanelDelegate, TextThreadEditor, humanize_token_count, make_lsp_adapter_delegate,
  23        render_remaining_tokens,
  24    },
  25    thread_history::{HistoryEntryElement, ThreadHistory},
  26    ui::AgentOnboardingModal,
  27};
  28use agent::{
  29    ThreadError, ThreadEvent, ThreadId, ThreadSummary, TokenUsageRatio, ZedAgentThread,
  30    context_store::ContextStore,
  31    history_store::{HistoryEntryId, HistoryStore},
  32    thread_store::{TextThreadStore, ThreadStore},
  33};
  34use agent_settings::{AgentDockPosition, AgentSettings, CompletionMode, DefaultView};
  35use anyhow::{Result, anyhow};
  36use assistant_context::{AssistantContext, ContextEvent, ContextSummary};
  37use assistant_slash_command::SlashCommandWorkingSet;
  38use assistant_tool::ToolWorkingSet;
  39use client::{UserStore, zed_urls};
  40use editor::{Anchor, AnchorRangeExt as _, Editor, EditorEvent, MultiBuffer};
  41use fs::Fs;
  42use gpui::{
  43    Action, Animation, AnimationExt as _, AnyElement, App, AsyncWindowContext, ClipboardItem,
  44    Corner, DismissEvent, Entity, EventEmitter, ExternalPaths, FocusHandle, Focusable, FontWeight,
  45    KeyContext, Pixels, Subscription, Task, UpdateGlobal, WeakEntity, linear_color_stop,
  46    linear_gradient, prelude::*, pulsating_between,
  47};
  48use language::LanguageRegistry;
  49use language_model::{
  50    ConfigurationError, LanguageModelProviderTosView, LanguageModelRegistry, ZED_CLOUD_PROVIDER_ID,
  51};
  52use project::{Project, ProjectPath, Worktree};
  53use prompt_store::{PromptBuilder, PromptStore, UserPromptId};
  54use proto::Plan;
  55use rules_library::{RulesLibrary, open_rules_library};
  56use search::{BufferSearchBar, buffer_search};
  57use settings::{Settings, update_settings_file};
  58use theme::ThemeSettings;
  59use time::UtcOffset;
  60use ui::utils::WithRemSize;
  61use ui::{
  62    Banner, CheckboxWithLabel, ContextMenu, ElevationIndex, KeyBinding, PopoverMenu,
  63    PopoverMenuHandle, ProgressBar, Tab, Tooltip, Vector, VectorName, prelude::*,
  64};
  65use util::ResultExt as _;
  66use workspace::{
  67    CollaboratorId, DraggedSelection, DraggedTab, ToggleZoom, ToolbarItemView, Workspace,
  68    dock::{DockPosition, Panel, PanelEvent},
  69};
  70use zed_actions::{
  71    DecreaseBufferFontSize, IncreaseBufferFontSize, ResetBufferFontSize,
  72    agent::{OpenConfiguration, OpenOnboardingModal, ResetOnboarding},
  73    assistant::{OpenRulesLibrary, ToggleFocus},
  74};
  75use zed_llm_client::UsageLimit;
  76
  77const AGENT_PANEL_KEY: &str = "agent_panel";
  78
  79#[derive(Serialize, Deserialize)]
  80struct SerializedAgentPanel {
  81    width: Option<Pixels>,
  82}
  83
  84pub fn init(cx: &mut App) {
  85    cx.observe_new(
  86        |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
  87            workspace
  88                .register_action(|workspace, action: &NewThread, window, cx| {
  89                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  90                        panel.update(cx, |panel, cx| panel.new_thread(action, window, cx));
  91                        workspace.focus_panel::<AgentPanel>(window, cx);
  92                    }
  93                })
  94                .register_action(|workspace, _: &OpenHistory, window, cx| {
  95                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
  96                        workspace.focus_panel::<AgentPanel>(window, cx);
  97                        panel.update(cx, |panel, cx| panel.open_history(window, cx));
  98                    }
  99                })
 100                .register_action(|workspace, _: &OpenConfiguration, window, cx| {
 101                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 102                        workspace.focus_panel::<AgentPanel>(window, cx);
 103                        panel.update(cx, |panel, cx| panel.open_configuration(window, cx));
 104                    }
 105                })
 106                .register_action(|workspace, _: &NewTextThread, window, cx| {
 107                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 108                        workspace.focus_panel::<AgentPanel>(window, cx);
 109                        panel.update(cx, |panel, cx| panel.new_prompt_editor(window, cx));
 110                    }
 111                })
 112                .register_action(|workspace, action: &OpenRulesLibrary, window, cx| {
 113                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 114                        workspace.focus_panel::<AgentPanel>(window, cx);
 115                        panel.update(cx, |panel, cx| {
 116                            panel.deploy_rules_library(action, window, cx)
 117                        });
 118                    }
 119                })
 120                .register_action(|workspace, _: &OpenAgentDiff, window, cx| {
 121                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 122                        workspace.focus_panel::<AgentPanel>(window, cx);
 123                        match &panel.read(cx).active_view {
 124                            ActiveView::Thread { thread, .. } => {
 125                                let agent = thread.read(cx).agent().clone();
 126                                AgentDiffPane::deploy_in_workspace(agent, workspace, window, cx);
 127                            }
 128                            ActiveView::TextThread { .. }
 129                            | ActiveView::History
 130                            | ActiveView::Configuration => {}
 131                        }
 132                    }
 133                })
 134                .register_action(|workspace, _: &Follow, window, cx| {
 135                    workspace.follow(CollaboratorId::Agent, window, cx);
 136                })
 137                .register_action(|workspace, _: &ExpandMessageEditor, window, cx| {
 138                    let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
 139                        return;
 140                    };
 141                    workspace.focus_panel::<AgentPanel>(window, cx);
 142                    panel.update(cx, |panel, cx| {
 143                        if let Some(message_editor) = panel.active_message_editor() {
 144                            message_editor.update(cx, |editor, cx| {
 145                                editor.expand_message_editor(&ExpandMessageEditor, window, cx);
 146                            });
 147                        }
 148                    });
 149                })
 150                .register_action(|workspace, _: &ToggleNavigationMenu, window, cx| {
 151                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 152                        workspace.focus_panel::<AgentPanel>(window, cx);
 153                        panel.update(cx, |panel, cx| {
 154                            panel.toggle_navigation_menu(&ToggleNavigationMenu, window, cx);
 155                        });
 156                    }
 157                })
 158                .register_action(|workspace, _: &ToggleOptionsMenu, window, cx| {
 159                    if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 160                        workspace.focus_panel::<AgentPanel>(window, cx);
 161                        panel.update(cx, |panel, cx| {
 162                            panel.toggle_options_menu(&ToggleOptionsMenu, window, cx);
 163                        });
 164                    }
 165                })
 166                .register_action(|workspace, _: &OpenOnboardingModal, window, cx| {
 167                    AgentOnboardingModal::toggle(workspace, window, cx)
 168                })
 169                .register_action(|_workspace, _: &ResetOnboarding, window, cx| {
 170                    window.dispatch_action(workspace::RestoreBanner.boxed_clone(), cx);
 171                    window.refresh();
 172                })
 173                .register_action(|_workspace, _: &ResetTrialUpsell, _window, cx| {
 174                    Upsell::set_dismissed(false, cx);
 175                })
 176                .register_action(|_workspace, _: &ResetTrialEndUpsell, _window, cx| {
 177                    TrialEndUpsell::set_dismissed(false, cx);
 178                });
 179        },
 180    )
 181    .detach();
 182}
 183
 184enum ActiveView {
 185    Thread {
 186        thread: Entity<ActiveThread>,
 187        change_title_editor: Entity<Editor>,
 188        message_editor: Entity<MessageEditor>,
 189        _subscriptions: Vec<gpui::Subscription>,
 190    },
 191    TextThread {
 192        context_editor: Entity<TextThreadEditor>,
 193        title_editor: Entity<Editor>,
 194        buffer_search_bar: Entity<BufferSearchBar>,
 195        _subscriptions: Vec<gpui::Subscription>,
 196    },
 197    History,
 198    Configuration,
 199}
 200
 201enum WhichFontSize {
 202    AgentFont,
 203    BufferFont,
 204    None,
 205}
 206
 207impl ActiveView {
 208    pub fn which_font_size_used(&self) -> WhichFontSize {
 209        match self {
 210            ActiveView::Thread { .. } | ActiveView::History => WhichFontSize::AgentFont,
 211            ActiveView::TextThread { .. } => WhichFontSize::BufferFont,
 212            ActiveView::Configuration => WhichFontSize::None,
 213        }
 214    }
 215
 216    pub fn thread(
 217        active_thread: Entity<ActiveThread>,
 218        message_editor: Entity<MessageEditor>,
 219        window: &mut Window,
 220        cx: &mut Context<AgentPanel>,
 221    ) -> Self {
 222        let summary = active_thread.read(cx).summary(cx).or_default();
 223
 224        let editor = cx.new(|cx| {
 225            let mut editor = Editor::single_line(window, cx);
 226            editor.set_text(summary.clone(), window, cx);
 227            editor
 228        });
 229
 230        let subscriptions = vec![
 231            cx.subscribe(&message_editor, |this, _, event, cx| match event {
 232                MessageEditorEvent::Changed | MessageEditorEvent::EstimatedTokenCount => {
 233                    cx.notify();
 234                }
 235                MessageEditorEvent::ScrollThreadToBottom => match &this.active_view {
 236                    ActiveView::Thread { thread, .. } => {
 237                        thread.update(cx, |thread, cx| {
 238                            thread.scroll_to_bottom(cx);
 239                        });
 240                    }
 241                    ActiveView::TextThread { .. }
 242                    | ActiveView::History
 243                    | ActiveView::Configuration => {}
 244                },
 245            }),
 246            window.subscribe(&editor, cx, {
 247                {
 248                    let thread = active_thread.clone();
 249                    move |editor, event, window, cx| match event {
 250                        EditorEvent::BufferEdited => {
 251                            let new_summary = editor.read(cx).text(cx);
 252
 253                            thread.update(cx, |thread, cx| {
 254                                thread.agent().update(cx, |agent, cx| {
 255                                    agent.set_summary(new_summary, cx);
 256                                })
 257                            })
 258                        }
 259                        EditorEvent::Blurred => {
 260                            if editor.read(cx).text(cx).is_empty() {
 261                                let summary = thread.read(cx).summary(cx).or_default();
 262
 263                                editor.update(cx, |editor, cx| {
 264                                    editor.set_text(summary, window, cx);
 265                                });
 266                            }
 267                        }
 268                        _ => {}
 269                    }
 270                }
 271            }),
 272            cx.subscribe(&active_thread, |_, _, event, cx| match &event {
 273                ActiveThreadEvent::EditingMessageTokenCountChanged => {
 274                    cx.notify();
 275                }
 276            }),
 277            cx.subscribe_in(&active_thread.read(cx).agent().clone(), window, {
 278                let editor = editor.clone();
 279                move |_, agent, event, window, cx| match event {
 280                    ThreadEvent::SummaryGenerated => {
 281                        let summary = agent.read(cx).summary().or_default();
 282
 283                        editor.update(cx, |editor, cx| {
 284                            editor.set_text(summary, window, cx);
 285                        })
 286                    }
 287                    ThreadEvent::MessageAdded(_) => {
 288                        cx.notify();
 289                    }
 290                    _ => {}
 291                }
 292            }),
 293        ];
 294
 295        Self::Thread {
 296            change_title_editor: editor,
 297            thread: active_thread,
 298            message_editor: message_editor,
 299            _subscriptions: subscriptions,
 300        }
 301    }
 302
 303    pub fn prompt_editor(
 304        context_editor: Entity<TextThreadEditor>,
 305        history_store: Entity<HistoryStore>,
 306        language_registry: Arc<LanguageRegistry>,
 307        window: &mut Window,
 308        cx: &mut App,
 309    ) -> Self {
 310        let title = context_editor.read(cx).title(cx).to_string();
 311
 312        let editor = cx.new(|cx| {
 313            let mut editor = Editor::single_line(window, cx);
 314            editor.set_text(title, window, cx);
 315            editor
 316        });
 317
 318        // This is a workaround for `editor.set_text` emitting a `BufferEdited` event, which would
 319        // cause a custom summary to be set. The presence of this custom summary would cause
 320        // summarization to not happen.
 321        let mut suppress_first_edit = true;
 322
 323        let subscriptions = vec![
 324            window.subscribe(&editor, cx, {
 325                {
 326                    let context_editor = context_editor.clone();
 327                    move |editor, event, window, cx| match event {
 328                        EditorEvent::BufferEdited => {
 329                            if suppress_first_edit {
 330                                suppress_first_edit = false;
 331                                return;
 332                            }
 333                            let new_summary = editor.read(cx).text(cx);
 334
 335                            context_editor.update(cx, |context_editor, cx| {
 336                                context_editor
 337                                    .context()
 338                                    .update(cx, |assistant_context, cx| {
 339                                        assistant_context.set_custom_summary(new_summary, cx);
 340                                    })
 341                            })
 342                        }
 343                        EditorEvent::Blurred => {
 344                            if editor.read(cx).text(cx).is_empty() {
 345                                let summary = context_editor
 346                                    .read(cx)
 347                                    .context()
 348                                    .read(cx)
 349                                    .summary()
 350                                    .or_default();
 351
 352                                editor.update(cx, |editor, cx| {
 353                                    editor.set_text(summary, window, cx);
 354                                });
 355                            }
 356                        }
 357                        _ => {}
 358                    }
 359                }
 360            }),
 361            window.subscribe(&context_editor.read(cx).context().clone(), cx, {
 362                let editor = editor.clone();
 363                move |assistant_context, event, window, cx| match event {
 364                    ContextEvent::SummaryGenerated => {
 365                        let summary = assistant_context.read(cx).summary().or_default();
 366
 367                        editor.update(cx, |editor, cx| {
 368                            editor.set_text(summary, window, cx);
 369                        })
 370                    }
 371                    ContextEvent::PathChanged { old_path, new_path } => {
 372                        history_store.update(cx, |history_store, cx| {
 373                            if let Some(old_path) = old_path {
 374                                history_store
 375                                    .replace_recently_opened_text_thread(old_path, new_path, cx);
 376                            } else {
 377                                history_store.push_recently_opened_entry(
 378                                    HistoryEntryId::Context(new_path.clone()),
 379                                    cx,
 380                                );
 381                            }
 382                        });
 383                    }
 384                    _ => {}
 385                }
 386            }),
 387        ];
 388
 389        let buffer_search_bar =
 390            cx.new(|cx| BufferSearchBar::new(Some(language_registry), window, cx));
 391        buffer_search_bar.update(cx, |buffer_search_bar, cx| {
 392            buffer_search_bar.set_active_pane_item(Some(&context_editor), window, cx)
 393        });
 394
 395        Self::TextThread {
 396            context_editor,
 397            title_editor: editor,
 398            buffer_search_bar,
 399            _subscriptions: subscriptions,
 400        }
 401    }
 402}
 403
 404pub struct AgentPanel {
 405    workspace: WeakEntity<Workspace>,
 406    user_store: Entity<UserStore>,
 407    project: Entity<Project>,
 408    fs: Arc<dyn Fs>,
 409    language_registry: Arc<LanguageRegistry>,
 410    thread_store: Entity<ThreadStore>,
 411    _default_model_subscription: Subscription,
 412    context_store: Entity<TextThreadStore>,
 413    prompt_store: Option<Entity<PromptStore>>,
 414    inline_assist_context_store: Entity<ContextStore>,
 415    configuration: Option<Entity<AgentConfiguration>>,
 416    configuration_subscription: Option<Subscription>,
 417    local_timezone: UtcOffset,
 418    active_view: ActiveView,
 419    previous_view: Option<ActiveView>,
 420    history_store: Entity<HistoryStore>,
 421    history: Entity<ThreadHistory>,
 422    hovered_recent_history_item: Option<usize>,
 423    assistant_dropdown_menu_handle: PopoverMenuHandle<ContextMenu>,
 424    assistant_navigation_menu_handle: PopoverMenuHandle<ContextMenu>,
 425    assistant_navigation_menu: Option<Entity<ContextMenu>>,
 426    width: Option<Pixels>,
 427    height: Option<Pixels>,
 428    zoomed: bool,
 429    pending_serialization: Option<Task<Result<()>>>,
 430    hide_upsell: bool,
 431}
 432
 433impl AgentPanel {
 434    fn serialize(&mut self, cx: &mut Context<Self>) {
 435        let width = self.width;
 436        self.pending_serialization = Some(cx.background_spawn(async move {
 437            KEY_VALUE_STORE
 438                .write_kvp(
 439                    AGENT_PANEL_KEY.into(),
 440                    serde_json::to_string(&SerializedAgentPanel { width })?,
 441                )
 442                .await?;
 443            anyhow::Ok(())
 444        }));
 445    }
 446    pub fn load(
 447        workspace: WeakEntity<Workspace>,
 448        prompt_builder: Arc<PromptBuilder>,
 449        mut cx: AsyncWindowContext,
 450    ) -> Task<Result<Entity<Self>>> {
 451        let prompt_store = cx.update(|_window, cx| PromptStore::global(cx));
 452        cx.spawn(async move |cx| {
 453            let prompt_store = match prompt_store {
 454                Ok(prompt_store) => prompt_store.await.ok(),
 455                Err(_) => None,
 456            };
 457            let tools = cx.new(|_| ToolWorkingSet::default())?;
 458            let thread_store = workspace
 459                .update(cx, |workspace, cx| {
 460                    let project = workspace.project().clone();
 461                    ThreadStore::load(
 462                        project,
 463                        tools.clone(),
 464                        prompt_store.clone(),
 465                        prompt_builder.clone(),
 466                        cx,
 467                    )
 468                })?
 469                .await?;
 470
 471            let slash_commands = Arc::new(SlashCommandWorkingSet::default());
 472            let context_store = workspace
 473                .update(cx, |workspace, cx| {
 474                    let project = workspace.project().clone();
 475                    assistant_context::ContextStore::new(
 476                        project,
 477                        prompt_builder.clone(),
 478                        slash_commands,
 479                        cx,
 480                    )
 481                })?
 482                .await?;
 483
 484            let serialized_panel = if let Some(panel) = cx
 485                .background_spawn(async move { KEY_VALUE_STORE.read_kvp(AGENT_PANEL_KEY) })
 486                .await
 487                .log_err()
 488                .flatten()
 489            {
 490                Some(serde_json::from_str::<SerializedAgentPanel>(&panel)?)
 491            } else {
 492                None
 493            };
 494
 495            let panel = workspace.update_in(cx, |workspace, window, cx| {
 496                let panel = cx.new(|cx| {
 497                    Self::new(
 498                        workspace,
 499                        thread_store,
 500                        context_store,
 501                        prompt_store,
 502                        window,
 503                        cx,
 504                    )
 505                });
 506                if let Some(serialized_panel) = serialized_panel {
 507                    panel.update(cx, |panel, cx| {
 508                        panel.width = serialized_panel.width.map(|w| w.round());
 509                        cx.notify();
 510                    });
 511                }
 512                panel
 513            })?;
 514
 515            Ok(panel)
 516        })
 517    }
 518
 519    fn new(
 520        workspace: &Workspace,
 521        thread_store: Entity<ThreadStore>,
 522        context_store: Entity<TextThreadStore>,
 523        prompt_store: Option<Entity<PromptStore>>,
 524        window: &mut Window,
 525        cx: &mut Context<Self>,
 526    ) -> Self {
 527        let agent = thread_store.update(cx, |this, cx| this.create_thread(cx));
 528        let fs = workspace.app_state().fs.clone();
 529        let user_store = workspace.app_state().user_store.clone();
 530        let project = workspace.project();
 531        let language_registry = project.read(cx).languages().clone();
 532        let workspace = workspace.weak_handle();
 533        let weak_self = cx.entity().downgrade();
 534
 535        let message_editor_context_store =
 536            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 537        let inline_assist_context_store =
 538            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
 539
 540        let message_editor = cx.new(|cx| {
 541            MessageEditor::new(
 542                fs.clone(),
 543                workspace.clone(),
 544                user_store.clone(),
 545                message_editor_context_store.clone(),
 546                prompt_store.clone(),
 547                thread_store.downgrade(),
 548                context_store.downgrade(),
 549                agent.clone(),
 550                window,
 551                cx,
 552            )
 553        });
 554
 555        let thread_id = agent.read(cx).id().clone();
 556        let history_store = cx.new(|cx| {
 557            HistoryStore::new(
 558                thread_store.clone(),
 559                context_store.clone(),
 560                [HistoryEntryId::Thread(thread_id)],
 561                cx,
 562            )
 563        });
 564
 565        cx.observe(&history_store, |_, _, cx| cx.notify()).detach();
 566
 567        let active_thread = cx.new(|cx| {
 568            ActiveThread::new(
 569                agent.clone(),
 570                thread_store.clone(),
 571                context_store.clone(),
 572                message_editor_context_store.clone(),
 573                language_registry.clone(),
 574                workspace.clone(),
 575                window,
 576                cx,
 577            )
 578        });
 579
 580        let panel_type = AgentSettings::get_global(cx).default_view;
 581        let active_view = match panel_type {
 582            DefaultView::Thread => ActiveView::thread(active_thread, message_editor, window, cx),
 583            DefaultView::TextThread => {
 584                let context =
 585                    context_store.update(cx, |context_store, cx| context_store.create(cx));
 586                let lsp_adapter_delegate = make_lsp_adapter_delegate(&project.clone(), cx).unwrap();
 587                let context_editor = cx.new(|cx| {
 588                    let mut editor = TextThreadEditor::for_context(
 589                        context,
 590                        fs.clone(),
 591                        workspace.clone(),
 592                        project.clone(),
 593                        lsp_adapter_delegate,
 594                        window,
 595                        cx,
 596                    );
 597                    editor.insert_default_prompt(window, cx);
 598                    editor
 599                });
 600                ActiveView::prompt_editor(
 601                    context_editor,
 602                    history_store.clone(),
 603                    language_registry.clone(),
 604                    window,
 605                    cx,
 606                )
 607            }
 608        };
 609
 610        AgentDiff::set_active_thread(&workspace, &agent, window, cx);
 611
 612        let weak_panel = weak_self.clone();
 613
 614        window.defer(cx, move |window, cx| {
 615            let panel = weak_panel.clone();
 616            let assistant_navigation_menu =
 617                ContextMenu::build_persistent(window, cx, move |mut menu, _window, cx| {
 618                    if let Some(panel) = panel.upgrade() {
 619                        menu = Self::populate_recently_opened_menu_section(menu, panel, cx);
 620                    }
 621                    menu.action("View All", Box::new(OpenHistory))
 622                        .end_slot_action(DeleteRecentlyOpenThread.boxed_clone())
 623                        .fixed_width(px(320.).into())
 624                        .keep_open_on_confirm(false)
 625                        .key_context("NavigationMenu")
 626                });
 627            weak_panel
 628                .update(cx, |panel, cx| {
 629                    cx.subscribe_in(
 630                        &assistant_navigation_menu,
 631                        window,
 632                        |_, menu, _: &DismissEvent, window, cx| {
 633                            menu.update(cx, |menu, _| {
 634                                menu.clear_selected();
 635                            });
 636                            cx.focus_self(window);
 637                        },
 638                    )
 639                    .detach();
 640                    panel.assistant_navigation_menu = Some(assistant_navigation_menu);
 641                })
 642                .ok();
 643        });
 644
 645        let _default_model_subscription = cx.subscribe(
 646            &LanguageModelRegistry::global(cx),
 647            |this, _, event: &language_model::Event, cx| match event {
 648                language_model::Event::DefaultModelChanged => match &this.active_view {
 649                    ActiveView::Thread { thread, .. } => {
 650                        thread
 651                            .read(cx)
 652                            .agent()
 653                            .clone()
 654                            .update(cx, |agent, cx| agent.get_or_init_configured_model(cx));
 655                    }
 656                    ActiveView::TextThread { .. }
 657                    | ActiveView::History
 658                    | ActiveView::Configuration => {}
 659                },
 660                _ => {}
 661            },
 662        );
 663
 664        Self {
 665            active_view,
 666            workspace,
 667            user_store,
 668            project: project.clone(),
 669            fs: fs.clone(),
 670            language_registry,
 671            thread_store: thread_store.clone(),
 672            _default_model_subscription,
 673            context_store,
 674            prompt_store,
 675            configuration: None,
 676            configuration_subscription: None,
 677            local_timezone: UtcOffset::from_whole_seconds(
 678                chrono::Local::now().offset().local_minus_utc(),
 679            )
 680            .unwrap(),
 681            inline_assist_context_store,
 682            previous_view: None,
 683            history_store: history_store.clone(),
 684            history: cx.new(|cx| ThreadHistory::new(weak_self, history_store, window, cx)),
 685            hovered_recent_history_item: None,
 686            assistant_dropdown_menu_handle: PopoverMenuHandle::default(),
 687            assistant_navigation_menu_handle: PopoverMenuHandle::default(),
 688            assistant_navigation_menu: None,
 689            width: None,
 690            height: None,
 691            zoomed: false,
 692            pending_serialization: None,
 693            hide_upsell: false,
 694        }
 695    }
 696
 697    pub fn toggle_focus(
 698        workspace: &mut Workspace,
 699        _: &ToggleFocus,
 700        window: &mut Window,
 701        cx: &mut Context<Workspace>,
 702    ) {
 703        if workspace
 704            .panel::<Self>(cx)
 705            .is_some_and(|panel| panel.read(cx).enabled(cx))
 706        {
 707            workspace.toggle_panel_focus::<Self>(window, cx);
 708        }
 709    }
 710
 711    pub(crate) fn local_timezone(&self) -> UtcOffset {
 712        self.local_timezone
 713    }
 714
 715    pub(crate) fn prompt_store(&self) -> &Option<Entity<PromptStore>> {
 716        &self.prompt_store
 717    }
 718
 719    pub(crate) fn inline_assist_context_store(&self) -> &Entity<ContextStore> {
 720        &self.inline_assist_context_store
 721    }
 722
 723    pub(crate) fn thread_store(&self) -> &Entity<ThreadStore> {
 724        &self.thread_store
 725    }
 726
 727    pub(crate) fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 728        &self.context_store
 729    }
 730
 731    fn cancel(&mut self, _: &editor::actions::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 732        match &self.active_view {
 733            ActiveView::Thread { thread, .. } => {
 734                thread.update(cx, |thread, cx| thread.cancel_last_completion(window, cx));
 735            }
 736            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
 737        }
 738    }
 739
 740    fn active_message_editor(&self) -> Option<&Entity<MessageEditor>> {
 741        match &self.active_view {
 742            ActiveView::Thread { message_editor, .. } => Some(message_editor),
 743            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => None,
 744        }
 745    }
 746
 747    fn new_thread(&mut self, action: &NewThread, window: &mut Window, cx: &mut Context<Self>) {
 748        // Preserve chat box text when using creating new thread from summary'
 749        let preserved_text = if action.from_thread_id.is_some() {
 750            self.active_message_editor()
 751                .map(|editor| editor.read(cx).get_text(cx).trim().to_string())
 752        } else {
 753            None
 754        };
 755
 756        let agent = self
 757            .thread_store
 758            .update(cx, |this, cx| this.create_thread(cx));
 759
 760        let context_store = cx.new(|_cx| {
 761            ContextStore::new(
 762                self.project.downgrade(),
 763                Some(self.thread_store.downgrade()),
 764            )
 765        });
 766
 767        if let Some(other_thread_id) = action.from_thread_id.clone() {
 768            let other_thread_task = self.thread_store.update(cx, |this, cx| {
 769                this.open_thread(&other_thread_id, window, cx)
 770            });
 771
 772            cx.spawn({
 773                let context_store = context_store.clone();
 774
 775                async move |_panel, cx| {
 776                    let other_thread = other_thread_task.await?;
 777
 778                    context_store.update(cx, |this, cx| {
 779                        this.add_thread(other_thread, false, cx);
 780                    })?;
 781                    anyhow::Ok(())
 782                }
 783            })
 784            .detach_and_log_err(cx);
 785        }
 786
 787        let active_thread = cx.new(|cx| {
 788            ActiveThread::new(
 789                agent.clone(),
 790                self.thread_store.clone(),
 791                self.context_store.clone(),
 792                context_store.clone(),
 793                self.language_registry.clone(),
 794                self.workspace.clone(),
 795                window,
 796                cx,
 797            )
 798        });
 799
 800        let message_editor = cx.new(|cx| {
 801            MessageEditor::new(
 802                self.fs.clone(),
 803                self.workspace.clone(),
 804                self.user_store.clone(),
 805                context_store.clone(),
 806                self.prompt_store.clone(),
 807                self.thread_store.downgrade(),
 808                self.context_store.downgrade(),
 809                agent.clone(),
 810                window,
 811                cx,
 812            )
 813        });
 814
 815        if let Some(text) = preserved_text {
 816            message_editor.update(cx, |editor, cx| {
 817                editor.set_text(text, window, cx);
 818            });
 819        }
 820
 821        message_editor.focus_handle(cx).focus(window);
 822
 823        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
 824        self.set_active_view(thread_view, window, cx);
 825
 826        AgentDiff::set_active_thread(&self.workspace, &agent, window, cx);
 827    }
 828
 829    fn new_prompt_editor(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 830        let context = self
 831            .context_store
 832            .update(cx, |context_store, cx| context_store.create(cx));
 833        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project, cx)
 834            .log_err()
 835            .flatten();
 836
 837        let context_editor = cx.new(|cx| {
 838            let mut editor = TextThreadEditor::for_context(
 839                context,
 840                self.fs.clone(),
 841                self.workspace.clone(),
 842                self.project.clone(),
 843                lsp_adapter_delegate,
 844                window,
 845                cx,
 846            );
 847            editor.insert_default_prompt(window, cx);
 848            editor
 849        });
 850
 851        self.set_active_view(
 852            ActiveView::prompt_editor(
 853                context_editor.clone(),
 854                self.history_store.clone(),
 855                self.language_registry.clone(),
 856                window,
 857                cx,
 858            ),
 859            window,
 860            cx,
 861        );
 862        context_editor.focus_handle(cx).focus(window);
 863    }
 864
 865    fn deploy_rules_library(
 866        &mut self,
 867        action: &OpenRulesLibrary,
 868        _window: &mut Window,
 869        cx: &mut Context<Self>,
 870    ) {
 871        open_rules_library(
 872            self.language_registry.clone(),
 873            Box::new(PromptLibraryInlineAssist::new(self.workspace.clone())),
 874            Rc::new(|| {
 875                Rc::new(SlashCommandCompletionProvider::new(
 876                    Arc::new(SlashCommandWorkingSet::default()),
 877                    None,
 878                    None,
 879                ))
 880            }),
 881            action
 882                .prompt_to_select
 883                .map(|uuid| UserPromptId(uuid).into()),
 884            cx,
 885        )
 886        .detach_and_log_err(cx);
 887    }
 888
 889    fn open_history(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 890        if matches!(self.active_view, ActiveView::History) {
 891            if let Some(previous_view) = self.previous_view.take() {
 892                self.set_active_view(previous_view, window, cx);
 893            }
 894        } else {
 895            self.thread_store
 896                .update(cx, |thread_store, cx| thread_store.reload(cx))
 897                .detach_and_log_err(cx);
 898            self.set_active_view(ActiveView::History, window, cx);
 899        }
 900        cx.notify();
 901    }
 902
 903    pub(crate) fn open_saved_prompt_editor(
 904        &mut self,
 905        path: Arc<Path>,
 906        window: &mut Window,
 907        cx: &mut Context<Self>,
 908    ) -> Task<Result<()>> {
 909        let context = self
 910            .context_store
 911            .update(cx, |store, cx| store.open_local_context(path, cx));
 912        cx.spawn_in(window, async move |this, cx| {
 913            let context = context.await?;
 914            this.update_in(cx, |this, window, cx| {
 915                this.open_prompt_editor(context, window, cx);
 916            })
 917        })
 918    }
 919
 920    pub(crate) fn open_prompt_editor(
 921        &mut self,
 922        context: Entity<AssistantContext>,
 923        window: &mut Window,
 924        cx: &mut Context<Self>,
 925    ) {
 926        let lsp_adapter_delegate = make_lsp_adapter_delegate(&self.project.clone(), cx)
 927            .log_err()
 928            .flatten();
 929        let editor = cx.new(|cx| {
 930            TextThreadEditor::for_context(
 931                context,
 932                self.fs.clone(),
 933                self.workspace.clone(),
 934                self.project.clone(),
 935                lsp_adapter_delegate,
 936                window,
 937                cx,
 938            )
 939        });
 940        self.set_active_view(
 941            ActiveView::prompt_editor(
 942                editor.clone(),
 943                self.history_store.clone(),
 944                self.language_registry.clone(),
 945                window,
 946                cx,
 947            ),
 948            window,
 949            cx,
 950        );
 951    }
 952
 953    pub(crate) fn open_thread_by_id(
 954        &mut self,
 955        thread_id: &ThreadId,
 956        window: &mut Window,
 957        cx: &mut Context<Self>,
 958    ) -> Task<Result<()>> {
 959        let open_thread_task = self
 960            .thread_store
 961            .update(cx, |this, cx| this.open_thread(thread_id, window, cx));
 962        cx.spawn_in(window, async move |this, cx| {
 963            let thread = open_thread_task.await?;
 964            this.update_in(cx, |this, window, cx| {
 965                this.open_thread(thread, window, cx);
 966                anyhow::Ok(())
 967            })??;
 968            Ok(())
 969        })
 970    }
 971
 972    pub(crate) fn open_thread(
 973        &mut self,
 974        agent: Entity<ZedAgentThread>,
 975        window: &mut Window,
 976        cx: &mut Context<Self>,
 977    ) {
 978        let context_store = cx.new(|_cx| {
 979            ContextStore::new(
 980                self.project.downgrade(),
 981                Some(self.thread_store.downgrade()),
 982            )
 983        });
 984
 985        let active_thread = cx.new(|cx| {
 986            ActiveThread::new(
 987                agent.clone(),
 988                self.thread_store.clone(),
 989                self.context_store.clone(),
 990                context_store.clone(),
 991                self.language_registry.clone(),
 992                self.workspace.clone(),
 993                window,
 994                cx,
 995            )
 996        });
 997        let message_editor = cx.new(|cx| {
 998            MessageEditor::new(
 999                self.fs.clone(),
1000                self.workspace.clone(),
1001                self.user_store.clone(),
1002                context_store,
1003                self.prompt_store.clone(),
1004                self.thread_store.downgrade(),
1005                self.context_store.downgrade(),
1006                agent.clone(),
1007                window,
1008                cx,
1009            )
1010        });
1011        message_editor.focus_handle(cx).focus(window);
1012
1013        let thread_view = ActiveView::thread(active_thread.clone(), message_editor, window, cx);
1014        self.set_active_view(thread_view, window, cx);
1015        AgentDiff::set_active_thread(&self.workspace, &agent, window, cx);
1016    }
1017
1018    pub fn go_back(&mut self, _: &workspace::GoBack, window: &mut Window, cx: &mut Context<Self>) {
1019        match self.active_view {
1020            ActiveView::Configuration | ActiveView::History => {
1021                if let Some(previous_view) = self.previous_view.take() {
1022                    self.active_view = previous_view;
1023
1024                    match &self.active_view {
1025                        ActiveView::Thread { message_editor, .. } => {
1026                            message_editor.focus_handle(cx).focus(window);
1027                        }
1028                        ActiveView::TextThread { context_editor, .. } => {
1029                            context_editor.focus_handle(cx).focus(window);
1030                        }
1031                        ActiveView::History | ActiveView::Configuration => {}
1032                    }
1033                }
1034                cx.notify();
1035            }
1036            _ => {}
1037        }
1038    }
1039
1040    pub fn toggle_navigation_menu(
1041        &mut self,
1042        _: &ToggleNavigationMenu,
1043        window: &mut Window,
1044        cx: &mut Context<Self>,
1045    ) {
1046        self.assistant_navigation_menu_handle.toggle(window, cx);
1047    }
1048
1049    pub fn toggle_options_menu(
1050        &mut self,
1051        _: &ToggleOptionsMenu,
1052        window: &mut Window,
1053        cx: &mut Context<Self>,
1054    ) {
1055        self.assistant_dropdown_menu_handle.toggle(window, cx);
1056    }
1057
1058    pub fn increase_font_size(
1059        &mut self,
1060        action: &IncreaseBufferFontSize,
1061        _: &mut Window,
1062        cx: &mut Context<Self>,
1063    ) {
1064        self.handle_font_size_action(action.persist, px(1.0), cx);
1065    }
1066
1067    pub fn decrease_font_size(
1068        &mut self,
1069        action: &DecreaseBufferFontSize,
1070        _: &mut Window,
1071        cx: &mut Context<Self>,
1072    ) {
1073        self.handle_font_size_action(action.persist, px(-1.0), cx);
1074    }
1075
1076    fn handle_font_size_action(&mut self, persist: bool, delta: Pixels, cx: &mut Context<Self>) {
1077        match self.active_view.which_font_size_used() {
1078            WhichFontSize::AgentFont => {
1079                if persist {
1080                    update_settings_file::<ThemeSettings>(
1081                        self.fs.clone(),
1082                        cx,
1083                        move |settings, cx| {
1084                            let agent_font_size =
1085                                ThemeSettings::get_global(cx).agent_font_size(cx) + delta;
1086                            let _ = settings
1087                                .agent_font_size
1088                                .insert(theme::clamp_font_size(agent_font_size).0);
1089                        },
1090                    );
1091                } else {
1092                    theme::adjust_agent_font_size(cx, |size| {
1093                        *size += delta;
1094                    });
1095                }
1096            }
1097            WhichFontSize::BufferFont => {
1098                // Prompt editor uses the buffer font size, so allow the action to propagate to the
1099                // default handler that changes that font size.
1100                cx.propagate();
1101            }
1102            WhichFontSize::None => {}
1103        }
1104    }
1105
1106    pub fn reset_font_size(
1107        &mut self,
1108        action: &ResetBufferFontSize,
1109        _: &mut Window,
1110        cx: &mut Context<Self>,
1111    ) {
1112        if action.persist {
1113            update_settings_file::<ThemeSettings>(self.fs.clone(), cx, move |settings, _| {
1114                settings.agent_font_size = None;
1115            });
1116        } else {
1117            theme::reset_agent_font_size(cx);
1118        }
1119    }
1120
1121    pub fn toggle_zoom(&mut self, _: &ToggleZoom, window: &mut Window, cx: &mut Context<Self>) {
1122        if self.zoomed {
1123            cx.emit(PanelEvent::ZoomOut);
1124        } else {
1125            if !self.focus_handle(cx).contains_focused(window, cx) {
1126                cx.focus_self(window);
1127            }
1128            cx.emit(PanelEvent::ZoomIn);
1129        }
1130    }
1131
1132    pub fn open_agent_diff(
1133        &mut self,
1134        _: &OpenAgentDiff,
1135        window: &mut Window,
1136        cx: &mut Context<Self>,
1137    ) {
1138        match &self.active_view {
1139            ActiveView::Thread { thread, .. } => {
1140                let agent = thread.read(cx).agent().clone();
1141                self.workspace
1142                    .update(cx, |workspace, cx| {
1143                        AgentDiffPane::deploy_in_workspace(agent, workspace, window, cx)
1144                    })
1145                    .log_err();
1146            }
1147            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1148        }
1149    }
1150
1151    pub(crate) fn open_configuration(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1152        let context_server_store = self.project.read(cx).context_server_store();
1153        let tools = self.thread_store.read(cx).tools();
1154        let fs = self.fs.clone();
1155
1156        self.set_active_view(ActiveView::Configuration, window, cx);
1157        self.configuration = Some(cx.new(|cx| {
1158            AgentConfiguration::new(
1159                fs,
1160                context_server_store,
1161                tools,
1162                self.language_registry.clone(),
1163                self.workspace.clone(),
1164                window,
1165                cx,
1166            )
1167        }));
1168
1169        if let Some(configuration) = self.configuration.as_ref() {
1170            self.configuration_subscription = Some(cx.subscribe_in(
1171                configuration,
1172                window,
1173                Self::handle_agent_configuration_event,
1174            ));
1175
1176            configuration.focus_handle(cx).focus(window);
1177        }
1178    }
1179
1180    pub(crate) fn open_active_thread_as_markdown(
1181        &mut self,
1182        _: &OpenActiveThreadAsMarkdown,
1183        window: &mut Window,
1184        cx: &mut Context<Self>,
1185    ) {
1186        let Some(workspace) = self.workspace.upgrade() else {
1187            return;
1188        };
1189
1190        match &self.active_view {
1191            ActiveView::Thread { thread, .. } => {
1192                active_thread::open_active_thread_as_markdown(
1193                    thread.read(cx).agent().clone(),
1194                    workspace,
1195                    window,
1196                    cx,
1197                )
1198                .detach_and_log_err(cx);
1199            }
1200            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {}
1201        }
1202    }
1203
1204    fn handle_agent_configuration_event(
1205        &mut self,
1206        _entity: &Entity<AgentConfiguration>,
1207        event: &AssistantConfigurationEvent,
1208        window: &mut Window,
1209        cx: &mut Context<Self>,
1210    ) {
1211        match event {
1212            AssistantConfigurationEvent::NewThread(provider) => {
1213                if LanguageModelRegistry::read_global(cx)
1214                    .default_model()
1215                    .map_or(true, |model| model.provider.id() != provider.id())
1216                {
1217                    if let Some(model) = provider.default_model(cx) {
1218                        update_settings_file::<AgentSettings>(
1219                            self.fs.clone(),
1220                            cx,
1221                            move |settings, _| settings.set_model(model),
1222                        );
1223                    }
1224                }
1225
1226                self.new_thread(&NewThread::default(), window, cx);
1227            }
1228        }
1229    }
1230
1231    pub(crate) fn active_thread(&self, cx: &App) -> Option<Entity<ZedAgentThread>> {
1232        match &self.active_view {
1233            ActiveView::Thread { thread, .. } => Some(thread.read(cx).agent().clone()),
1234            _ => None,
1235        }
1236    }
1237
1238    pub(crate) fn delete_thread(
1239        &mut self,
1240        thread_id: &ThreadId,
1241        cx: &mut Context<Self>,
1242    ) -> Task<Result<()>> {
1243        self.thread_store
1244            .update(cx, |this, cx| this.delete_thread(thread_id, cx))
1245    }
1246
1247    fn continue_conversation(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1248        let ActiveView::Thread { thread, .. } = &self.active_view else {
1249            return;
1250        };
1251
1252        let agent_state = thread.read(cx).agent().read(cx);
1253        if !agent_state.tool_use_limit_reached() {
1254            return;
1255        }
1256
1257        let model = agent_state.configured_model().map(|cm| cm.model.clone());
1258        if let Some(model) = model {
1259            thread.update(cx, |active_thread, cx| {
1260                active_thread.agent().update(cx, |agent, cx| {
1261                    agent.send_continue_message(model, Some(window.window_handle()), cx);
1262                });
1263            });
1264        } else {
1265            log::warn!("No configured model available for continuation");
1266        }
1267    }
1268
1269    fn toggle_burn_mode(
1270        &mut self,
1271        _: &ToggleBurnMode,
1272        _window: &mut Window,
1273        cx: &mut Context<Self>,
1274    ) {
1275        let ActiveView::Thread { thread, .. } = &self.active_view else {
1276            return;
1277        };
1278
1279        thread.update(cx, |active_thread, cx| {
1280            active_thread.agent().update(cx, |agent, _cx| {
1281                let current_mode = agent.completion_mode();
1282
1283                agent.set_completion_mode(match current_mode {
1284                    CompletionMode::Burn => CompletionMode::Normal,
1285                    CompletionMode::Normal => CompletionMode::Burn,
1286                });
1287            });
1288        });
1289    }
1290
1291    pub(crate) fn active_context_editor(&self) -> Option<Entity<TextThreadEditor>> {
1292        match &self.active_view {
1293            ActiveView::TextThread { context_editor, .. } => Some(context_editor.clone()),
1294            _ => None,
1295        }
1296    }
1297
1298    pub(crate) fn delete_context(
1299        &mut self,
1300        path: Arc<Path>,
1301        cx: &mut Context<Self>,
1302    ) -> Task<Result<()>> {
1303        self.context_store
1304            .update(cx, |this, cx| this.delete_local_context(path, cx))
1305    }
1306
1307    fn set_active_view(
1308        &mut self,
1309        new_view: ActiveView,
1310        window: &mut Window,
1311        cx: &mut Context<Self>,
1312    ) {
1313        let current_is_history = matches!(self.active_view, ActiveView::History);
1314        let new_is_history = matches!(new_view, ActiveView::History);
1315
1316        let current_is_config = matches!(self.active_view, ActiveView::Configuration);
1317        let new_is_config = matches!(new_view, ActiveView::Configuration);
1318
1319        let current_is_special = current_is_history || current_is_config;
1320        let new_is_special = new_is_history || new_is_config;
1321
1322        match &self.active_view {
1323            ActiveView::Thread { thread, .. } => {
1324                let thread = thread.read(cx);
1325                if thread.is_empty() {
1326                    let id = thread.agent().read(cx).id().clone();
1327                    self.history_store.update(cx, |store, cx| {
1328                        store.remove_recently_opened_thread(id, cx);
1329                    });
1330                }
1331            }
1332            _ => {}
1333        }
1334
1335        match &new_view {
1336            ActiveView::Thread { thread, .. } => self.history_store.update(cx, |store, cx| {
1337                let id = thread.read(cx).agent().read(cx).id().clone();
1338                store.push_recently_opened_entry(HistoryEntryId::Thread(id), cx);
1339            }),
1340            ActiveView::TextThread { context_editor, .. } => {
1341                self.history_store.update(cx, |store, cx| {
1342                    if let Some(path) = context_editor.read(cx).context().read(cx).path() {
1343                        store.push_recently_opened_entry(HistoryEntryId::Context(path.clone()), cx)
1344                    }
1345                })
1346            }
1347            _ => {}
1348        }
1349
1350        if current_is_special && !new_is_special {
1351            self.active_view = new_view;
1352        } else if !current_is_special && new_is_special {
1353            self.previous_view = Some(std::mem::replace(&mut self.active_view, new_view));
1354        } else {
1355            if !new_is_special {
1356                self.previous_view = None;
1357            }
1358            self.active_view = new_view;
1359        }
1360
1361        self.focus_handle(cx).focus(window);
1362    }
1363
1364    fn populate_recently_opened_menu_section(
1365        mut menu: ContextMenu,
1366        panel: Entity<Self>,
1367        cx: &mut Context<ContextMenu>,
1368    ) -> ContextMenu {
1369        let entries = panel
1370            .read(cx)
1371            .history_store
1372            .read(cx)
1373            .recently_opened_entries(cx);
1374
1375        if entries.is_empty() {
1376            return menu;
1377        }
1378
1379        menu = menu.header("Recently Opened");
1380
1381        for entry in entries {
1382            let title = entry.title().clone();
1383            let id = entry.id();
1384
1385            menu = menu.entry_with_end_slot_on_hover(
1386                title,
1387                None,
1388                {
1389                    let panel = panel.downgrade();
1390                    let id = id.clone();
1391                    move |window, cx| {
1392                        let id = id.clone();
1393                        panel
1394                            .update(cx, move |this, cx| match id {
1395                                HistoryEntryId::Thread(id) => this
1396                                    .open_thread_by_id(&id, window, cx)
1397                                    .detach_and_log_err(cx),
1398                                HistoryEntryId::Context(path) => this
1399                                    .open_saved_prompt_editor(path.clone(), window, cx)
1400                                    .detach_and_log_err(cx),
1401                            })
1402                            .ok();
1403                    }
1404                },
1405                IconName::Close,
1406                "Close Entry".into(),
1407                {
1408                    let panel = panel.downgrade();
1409                    let id = id.clone();
1410                    move |_window, cx| {
1411                        panel
1412                            .update(cx, |this, cx| {
1413                                this.history_store.update(cx, |history_store, cx| {
1414                                    history_store.remove_recently_opened_entry(&id, cx);
1415                                });
1416                            })
1417                            .ok();
1418                    }
1419                },
1420            );
1421        }
1422
1423        menu = menu.separator();
1424
1425        menu
1426    }
1427}
1428
1429impl Focusable for AgentPanel {
1430    fn focus_handle(&self, cx: &App) -> FocusHandle {
1431        match &self.active_view {
1432            ActiveView::Thread { message_editor, .. } => message_editor.focus_handle(cx),
1433            ActiveView::History => self.history.focus_handle(cx),
1434            ActiveView::TextThread { context_editor, .. } => context_editor.focus_handle(cx),
1435            ActiveView::Configuration => {
1436                if let Some(configuration) = self.configuration.as_ref() {
1437                    configuration.focus_handle(cx)
1438                } else {
1439                    cx.focus_handle()
1440                }
1441            }
1442        }
1443    }
1444}
1445
1446fn agent_panel_dock_position(cx: &App) -> DockPosition {
1447    match AgentSettings::get_global(cx).dock {
1448        AgentDockPosition::Left => DockPosition::Left,
1449        AgentDockPosition::Bottom => DockPosition::Bottom,
1450        AgentDockPosition::Right => DockPosition::Right,
1451    }
1452}
1453
1454impl EventEmitter<PanelEvent> for AgentPanel {}
1455
1456impl Panel for AgentPanel {
1457    fn persistent_name() -> &'static str {
1458        "AgentPanel"
1459    }
1460
1461    fn position(&self, _window: &Window, cx: &App) -> DockPosition {
1462        agent_panel_dock_position(cx)
1463    }
1464
1465    fn position_is_valid(&self, position: DockPosition) -> bool {
1466        position != DockPosition::Bottom
1467    }
1468
1469    fn set_position(&mut self, position: DockPosition, _: &mut Window, cx: &mut Context<Self>) {
1470        settings::update_settings_file::<AgentSettings>(self.fs.clone(), cx, move |settings, _| {
1471            let dock = match position {
1472                DockPosition::Left => AgentDockPosition::Left,
1473                DockPosition::Bottom => AgentDockPosition::Bottom,
1474                DockPosition::Right => AgentDockPosition::Right,
1475            };
1476            settings.set_dock(dock);
1477        });
1478    }
1479
1480    fn size(&self, window: &Window, cx: &App) -> Pixels {
1481        let settings = AgentSettings::get_global(cx);
1482        match self.position(window, cx) {
1483            DockPosition::Left | DockPosition::Right => {
1484                self.width.unwrap_or(settings.default_width)
1485            }
1486            DockPosition::Bottom => self.height.unwrap_or(settings.default_height),
1487        }
1488    }
1489
1490    fn set_size(&mut self, size: Option<Pixels>, window: &mut Window, cx: &mut Context<Self>) {
1491        match self.position(window, cx) {
1492            DockPosition::Left | DockPosition::Right => self.width = size,
1493            DockPosition::Bottom => self.height = size,
1494        }
1495        self.serialize(cx);
1496        cx.notify();
1497    }
1498
1499    fn set_active(&mut self, _active: bool, _window: &mut Window, _cx: &mut Context<Self>) {}
1500
1501    fn remote_id() -> Option<proto::PanelId> {
1502        Some(proto::PanelId::AssistantPanel)
1503    }
1504
1505    fn icon(&self, _window: &Window, cx: &App) -> Option<IconName> {
1506        (self.enabled(cx) && AgentSettings::get_global(cx).button).then_some(IconName::ZedAssistant)
1507    }
1508
1509    fn icon_tooltip(&self, _window: &Window, _cx: &App) -> Option<&'static str> {
1510        Some("Agent Panel")
1511    }
1512
1513    fn toggle_action(&self) -> Box<dyn Action> {
1514        Box::new(ToggleFocus)
1515    }
1516
1517    fn activation_priority(&self) -> u32 {
1518        3
1519    }
1520
1521    fn enabled(&self, cx: &App) -> bool {
1522        AgentSettings::get_global(cx).enabled
1523    }
1524
1525    fn is_zoomed(&self, _window: &Window, _cx: &App) -> bool {
1526        self.zoomed
1527    }
1528
1529    fn set_zoomed(&mut self, zoomed: bool, _window: &mut Window, cx: &mut Context<Self>) {
1530        self.zoomed = zoomed;
1531        cx.notify();
1532    }
1533}
1534
1535impl AgentPanel {
1536    fn render_title_view(&self, _window: &mut Window, cx: &Context<Self>) -> AnyElement {
1537        const LOADING_SUMMARY_PLACEHOLDER: &str = "Loading Summary…";
1538
1539        let content = match &self.active_view {
1540            ActiveView::Thread {
1541                thread: active_thread,
1542                change_title_editor,
1543                ..
1544            } => {
1545                let state = {
1546                    let active_thread = active_thread.read(cx);
1547                    if active_thread.is_empty() {
1548                        &ThreadSummary::Pending
1549                    } else {
1550                        active_thread.summary(cx)
1551                    }
1552                };
1553
1554                match state {
1555                    ThreadSummary::Pending => Label::new(ThreadSummary::DEFAULT.clone())
1556                        .truncate()
1557                        .into_any_element(),
1558                    ThreadSummary::Generating => Label::new(LOADING_SUMMARY_PLACEHOLDER)
1559                        .truncate()
1560                        .into_any_element(),
1561                    ThreadSummary::Ready(_) => div()
1562                        .w_full()
1563                        .child(change_title_editor.clone())
1564                        .into_any_element(),
1565                    ThreadSummary::Error => h_flex()
1566                        .w_full()
1567                        .child(change_title_editor.clone())
1568                        .child(
1569                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1570                                .on_click({
1571                                    let active_thread = active_thread.clone();
1572                                    move |_, _window, cx| {
1573                                        active_thread.update(cx, |thread, cx| {
1574                                            thread.regenerate_summary(cx);
1575                                        });
1576                                    }
1577                                })
1578                                .tooltip(move |_window, cx| {
1579                                    cx.new(|_| {
1580                                        Tooltip::new("Failed to generate title")
1581                                            .meta("Click to try again")
1582                                    })
1583                                    .into()
1584                                }),
1585                        )
1586                        .into_any_element(),
1587                }
1588            }
1589            ActiveView::TextThread {
1590                title_editor,
1591                context_editor,
1592                ..
1593            } => {
1594                let summary = context_editor.read(cx).context().read(cx).summary();
1595
1596                match summary {
1597                    ContextSummary::Pending => Label::new(ContextSummary::DEFAULT)
1598                        .truncate()
1599                        .into_any_element(),
1600                    ContextSummary::Content(summary) => {
1601                        if summary.done {
1602                            div()
1603                                .w_full()
1604                                .child(title_editor.clone())
1605                                .into_any_element()
1606                        } else {
1607                            Label::new(LOADING_SUMMARY_PLACEHOLDER)
1608                                .truncate()
1609                                .into_any_element()
1610                        }
1611                    }
1612                    ContextSummary::Error => h_flex()
1613                        .w_full()
1614                        .child(title_editor.clone())
1615                        .child(
1616                            ui::IconButton::new("retry-summary-generation", IconName::RotateCcw)
1617                                .on_click({
1618                                    let context_editor = context_editor.clone();
1619                                    move |_, _window, cx| {
1620                                        context_editor.update(cx, |context_editor, cx| {
1621                                            context_editor.regenerate_summary(cx);
1622                                        });
1623                                    }
1624                                })
1625                                .tooltip(move |_window, cx| {
1626                                    cx.new(|_| {
1627                                        Tooltip::new("Failed to generate title")
1628                                            .meta("Click to try again")
1629                                    })
1630                                    .into()
1631                                }),
1632                        )
1633                        .into_any_element(),
1634                }
1635            }
1636            ActiveView::History => Label::new("History").truncate().into_any_element(),
1637            ActiveView::Configuration => Label::new("Settings").truncate().into_any_element(),
1638        };
1639
1640        h_flex()
1641            .key_context("TitleEditor")
1642            .id("TitleEditor")
1643            .flex_grow()
1644            .w_full()
1645            .max_w_full()
1646            .overflow_x_scroll()
1647            .child(content)
1648            .into_any()
1649    }
1650
1651    fn render_toolbar(&self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1652        let user_store = self.user_store.read(cx);
1653        let usage = user_store.model_request_usage();
1654
1655        let account_url = zed_urls::account_url(cx);
1656
1657        let focus_handle = self.focus_handle(cx);
1658
1659        let go_back_button = div().child(
1660            IconButton::new("go-back", IconName::ArrowLeft)
1661                .icon_size(IconSize::Small)
1662                .on_click(cx.listener(|this, _, window, cx| {
1663                    this.go_back(&workspace::GoBack, window, cx);
1664                }))
1665                .tooltip({
1666                    let focus_handle = focus_handle.clone();
1667                    move |window, cx| {
1668                        Tooltip::for_action_in(
1669                            "Go Back",
1670                            &workspace::GoBack,
1671                            &focus_handle,
1672                            window,
1673                            cx,
1674                        )
1675                    }
1676                }),
1677        );
1678
1679        let recent_entries_menu = div().child(
1680            PopoverMenu::new("agent-nav-menu")
1681                .trigger_with_tooltip(
1682                    IconButton::new("agent-nav-menu", IconName::MenuAlt)
1683                        .icon_size(IconSize::Small)
1684                        .style(ui::ButtonStyle::Subtle),
1685                    {
1686                        let focus_handle = focus_handle.clone();
1687                        move |window, cx| {
1688                            Tooltip::for_action_in(
1689                                "Toggle Panel Menu",
1690                                &ToggleNavigationMenu,
1691                                &focus_handle,
1692                                window,
1693                                cx,
1694                            )
1695                        }
1696                    },
1697                )
1698                .anchor(Corner::TopLeft)
1699                .with_handle(self.assistant_navigation_menu_handle.clone())
1700                .menu({
1701                    let menu = self.assistant_navigation_menu.clone();
1702                    move |window, cx| {
1703                        if let Some(menu) = menu.as_ref() {
1704                            menu.update(cx, |_, cx| {
1705                                cx.defer_in(window, |menu, window, cx| {
1706                                    menu.rebuild(window, cx);
1707                                });
1708                            })
1709                        }
1710                        menu.clone()
1711                    }
1712                }),
1713        );
1714
1715        let zoom_in_label = if self.is_zoomed(window, cx) {
1716            "Zoom Out"
1717        } else {
1718            "Zoom In"
1719        };
1720
1721        let active_thread = match &self.active_view {
1722            ActiveView::Thread { thread, .. } => Some(thread.clone()),
1723            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => None,
1724        };
1725
1726        let agent_extra_menu = PopoverMenu::new("agent-options-menu")
1727            .trigger_with_tooltip(
1728                IconButton::new("agent-options-menu", IconName::Ellipsis)
1729                    .icon_size(IconSize::Small),
1730                {
1731                    let focus_handle = focus_handle.clone();
1732                    move |window, cx| {
1733                        Tooltip::for_action_in(
1734                            "Toggle Agent Menu",
1735                            &ToggleOptionsMenu,
1736                            &focus_handle,
1737                            window,
1738                            cx,
1739                        )
1740                    }
1741                },
1742            )
1743            .anchor(Corner::TopRight)
1744            .with_handle(self.assistant_dropdown_menu_handle.clone())
1745            .menu(move |window, cx| {
1746                let active_thread = active_thread.clone();
1747                Some(ContextMenu::build(window, cx, |mut menu, _window, cx| {
1748                    menu = menu
1749                        .action("New Thread", NewThread::default().boxed_clone())
1750                        .action("New Text Thread", NewTextThread.boxed_clone())
1751                        .when_some(active_thread, |this, active_thread| {
1752                            let thread = active_thread.read(cx);
1753                            if !thread.is_empty() {
1754                                this.action(
1755                                    "New From Summary",
1756                                    Box::new(NewThread {
1757                                        from_thread_id: Some(thread.agent().read(cx).id().clone()),
1758                                    }),
1759                                )
1760                            } else {
1761                                this
1762                            }
1763                        })
1764                        .separator();
1765
1766                    menu = menu
1767                        .header("MCP Servers")
1768                        .action(
1769                            "View Server Extensions",
1770                            Box::new(zed_actions::Extensions {
1771                                category_filter: Some(
1772                                    zed_actions::ExtensionCategoryFilter::ContextServers,
1773                                ),
1774                            }),
1775                        )
1776                        .action("Add Custom Server…", Box::new(AddContextServer))
1777                        .separator();
1778
1779                    if let Some(usage) = usage {
1780                        menu = menu
1781                            .header_with_link("Prompt Usage", "Manage", account_url.clone())
1782                            .custom_entry(
1783                                move |_window, cx| {
1784                                    let used_percentage = match usage.limit {
1785                                        UsageLimit::Limited(limit) => {
1786                                            Some((usage.amount as f32 / limit as f32) * 100.)
1787                                        }
1788                                        UsageLimit::Unlimited => None,
1789                                    };
1790
1791                                    h_flex()
1792                                        .flex_1()
1793                                        .gap_1p5()
1794                                        .children(used_percentage.map(|percent| {
1795                                            ProgressBar::new("usage", percent, 100., cx)
1796                                        }))
1797                                        .child(
1798                                            Label::new(match usage.limit {
1799                                                UsageLimit::Limited(limit) => {
1800                                                    format!("{} / {limit}", usage.amount)
1801                                                }
1802                                                UsageLimit::Unlimited => {
1803                                                    format!("{} / ∞", usage.amount)
1804                                                }
1805                                            })
1806                                            .size(LabelSize::Small)
1807                                            .color(Color::Muted),
1808                                        )
1809                                        .into_any_element()
1810                                },
1811                                move |_, cx| cx.open_url(&zed_urls::account_url(cx)),
1812                            )
1813                            .separator()
1814                    }
1815
1816                    menu = menu
1817                        .action("Rules…", Box::new(OpenRulesLibrary::default()))
1818                        .action("Settings", Box::new(OpenConfiguration))
1819                        .action(zoom_in_label, Box::new(ToggleZoom));
1820                    menu
1821                }))
1822            });
1823
1824        h_flex()
1825            .id("assistant-toolbar")
1826            .h(Tab::container_height(cx))
1827            .max_w_full()
1828            .flex_none()
1829            .justify_between()
1830            .gap_2()
1831            .bg(cx.theme().colors().tab_bar_background)
1832            .border_b_1()
1833            .border_color(cx.theme().colors().border)
1834            .child(
1835                h_flex()
1836                    .size_full()
1837                    .pl_1()
1838                    .gap_1()
1839                    .child(match &self.active_view {
1840                        ActiveView::History | ActiveView::Configuration => go_back_button,
1841                        _ => recent_entries_menu,
1842                    })
1843                    .child(self.render_title_view(window, cx)),
1844            )
1845            .child(
1846                h_flex()
1847                    .h_full()
1848                    .gap_2()
1849                    .children(self.render_token_count(cx))
1850                    .child(
1851                        h_flex()
1852                            .h_full()
1853                            .gap(DynamicSpacing::Base02.rems(cx))
1854                            .px(DynamicSpacing::Base08.rems(cx))
1855                            .border_l_1()
1856                            .border_color(cx.theme().colors().border)
1857                            .child(
1858                                IconButton::new("new", IconName::Plus)
1859                                    .icon_size(IconSize::Small)
1860                                    .style(ButtonStyle::Subtle)
1861                                    .tooltip(move |window, cx| {
1862                                        Tooltip::for_action_in(
1863                                            "New Thread",
1864                                            &NewThread::default(),
1865                                            &focus_handle,
1866                                            window,
1867                                            cx,
1868                                        )
1869                                    })
1870                                    .on_click(move |_event, window, cx| {
1871                                        window.dispatch_action(
1872                                            NewThread::default().boxed_clone(),
1873                                            cx,
1874                                        );
1875                                    }),
1876                            )
1877                            .child(agent_extra_menu),
1878                    ),
1879            )
1880    }
1881
1882    fn render_token_count(&self, cx: &App) -> Option<AnyElement> {
1883        let (active_thread, message_editor) = match &self.active_view {
1884            ActiveView::Thread {
1885                thread,
1886                message_editor,
1887                ..
1888            } => (thread.read(cx), message_editor.read(cx)),
1889            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
1890                return None;
1891            }
1892        };
1893
1894        let editor_empty = message_editor.is_editor_fully_empty(cx);
1895
1896        if active_thread.is_empty() && editor_empty {
1897            return None;
1898        }
1899
1900        let agent = active_thread.agent().read(cx);
1901        let is_generating = agent.is_generating();
1902        let conversation_token_usage = agent.total_token_usage(cx)?;
1903
1904        let (total_token_usage, is_estimating) =
1905            if let Some((editing_message_id, unsent_tokens)) = active_thread.editing_message_id() {
1906                let combined = agent
1907                    .token_usage_up_to_message(editing_message_id, cx)
1908                    .add(unsent_tokens);
1909
1910                (combined, unsent_tokens > 0)
1911            } else {
1912                let unsent_tokens = message_editor.last_estimated_token_count().unwrap_or(0);
1913                let combined = conversation_token_usage.add(unsent_tokens);
1914
1915                (combined, unsent_tokens > 0)
1916            };
1917
1918        let is_waiting_to_update_token_count = message_editor.is_waiting_to_update_token_count();
1919
1920        match &self.active_view {
1921            ActiveView::Thread { .. } => {
1922                if total_token_usage.total == 0 {
1923                    return None;
1924                }
1925
1926                let token_color = match total_token_usage.ratio() {
1927                    TokenUsageRatio::Normal if is_estimating => Color::Default,
1928                    TokenUsageRatio::Normal => Color::Muted,
1929                    TokenUsageRatio::Warning => Color::Warning,
1930                    TokenUsageRatio::Exceeded => Color::Error,
1931                };
1932
1933                let token_count = h_flex()
1934                    .id("token-count")
1935                    .flex_shrink_0()
1936                    .gap_0p5()
1937                    .when(!is_generating && is_estimating, |parent| {
1938                        parent
1939                            .child(
1940                                h_flex()
1941                                    .mr_1()
1942                                    .size_2p5()
1943                                    .justify_center()
1944                                    .rounded_full()
1945                                    .bg(cx.theme().colors().text.opacity(0.1))
1946                                    .child(
1947                                        div().size_1().rounded_full().bg(cx.theme().colors().text),
1948                                    ),
1949                            )
1950                            .tooltip(move |window, cx| {
1951                                Tooltip::with_meta(
1952                                    "Estimated New Token Count",
1953                                    None,
1954                                    format!(
1955                                        "Current Conversation Tokens: {}",
1956                                        humanize_token_count(conversation_token_usage.total)
1957                                    ),
1958                                    window,
1959                                    cx,
1960                                )
1961                            })
1962                    })
1963                    .child(
1964                        Label::new(humanize_token_count(total_token_usage.total))
1965                            .size(LabelSize::Small)
1966                            .color(token_color)
1967                            .map(|label| {
1968                                if is_generating || is_waiting_to_update_token_count {
1969                                    label
1970                                        .with_animation(
1971                                            "used-tokens-label",
1972                                            Animation::new(Duration::from_secs(2))
1973                                                .repeat()
1974                                                .with_easing(pulsating_between(0.6, 1.)),
1975                                            |label, delta| label.alpha(delta),
1976                                        )
1977                                        .into_any()
1978                                } else {
1979                                    label.into_any_element()
1980                                }
1981                            }),
1982                    )
1983                    .child(Label::new("/").size(LabelSize::Small).color(Color::Muted))
1984                    .child(
1985                        Label::new(humanize_token_count(total_token_usage.max))
1986                            .size(LabelSize::Small)
1987                            .color(Color::Muted),
1988                    )
1989                    .into_any();
1990
1991                Some(token_count)
1992            }
1993            ActiveView::TextThread { context_editor, .. } => {
1994                let element = render_remaining_tokens(context_editor, cx)?;
1995
1996                Some(element.into_any_element())
1997            }
1998            _ => None,
1999        }
2000    }
2001
2002    fn should_render_trial_end_upsell(&self, cx: &mut Context<Self>) -> bool {
2003        if TrialEndUpsell::dismissed() {
2004            return false;
2005        }
2006
2007        let plan = self.user_store.read(cx).current_plan();
2008        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2009
2010        matches!(plan, Some(Plan::Free)) && has_previous_trial
2011    }
2012
2013    fn should_render_upsell(&self, cx: &mut Context<Self>) -> bool {
2014        match &self.active_view {
2015            ActiveView::Thread { thread, .. } => {
2016                let is_using_zed_provider = thread
2017                    .read(cx)
2018                    .agent()
2019                    .read(cx)
2020                    .configured_model()
2021                    .map_or(false, |model| {
2022                        model.provider.id().0 == ZED_CLOUD_PROVIDER_ID
2023                    });
2024
2025                if !is_using_zed_provider {
2026                    return false;
2027                }
2028            }
2029            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2030                return false;
2031            }
2032        };
2033
2034        if self.hide_upsell || Upsell::dismissed() {
2035            return false;
2036        }
2037
2038        let plan = self.user_store.read(cx).current_plan();
2039        if matches!(plan, Some(Plan::ZedPro | Plan::ZedProTrial)) {
2040            return false;
2041        }
2042
2043        let has_previous_trial = self.user_store.read(cx).trial_started_at().is_some();
2044        if has_previous_trial {
2045            return false;
2046        }
2047
2048        true
2049    }
2050
2051    fn render_upsell(
2052        &self,
2053        _window: &mut Window,
2054        cx: &mut Context<Self>,
2055    ) -> Option<impl IntoElement> {
2056        if !self.should_render_upsell(cx) {
2057            return None;
2058        }
2059
2060        if self.user_store.read(cx).account_too_young() {
2061            Some(self.render_young_account_upsell(cx).into_any_element())
2062        } else {
2063            Some(self.render_trial_upsell(cx).into_any_element())
2064        }
2065    }
2066
2067    fn render_young_account_upsell(&self, cx: &mut Context<Self>) -> impl IntoElement {
2068        let checkbox = CheckboxWithLabel::new(
2069            "dont-show-again",
2070            Label::new("Don't show again").color(Color::Muted),
2071            ToggleState::Unselected,
2072            move |toggle_state, _window, cx| {
2073                let toggle_state_bool = toggle_state.selected();
2074
2075                Upsell::set_dismissed(toggle_state_bool, cx);
2076            },
2077        );
2078
2079        let contents = div()
2080            .size_full()
2081            .gap_2()
2082            .flex()
2083            .flex_col()
2084            .child(Headline::new("Build better with Zed Pro").size(HeadlineSize::Small))
2085            .child(
2086                Label::new("Your GitHub account was created less than 30 days ago, so we can't offer you a free trial.")
2087                    .size(LabelSize::Small),
2088            )
2089            .child(
2090                Label::new(
2091                    "Use your own API keys, upgrade to Zed Pro or send an email to billing-support@zed.dev.",
2092                )
2093                .color(Color::Muted),
2094            )
2095            .child(
2096                h_flex()
2097                    .w_full()
2098                    .px_neg_1()
2099                    .justify_between()
2100                    .items_center()
2101                    .child(h_flex().items_center().gap_1().child(checkbox))
2102                    .child(
2103                        h_flex()
2104                            .gap_2()
2105                            .child(
2106                                Button::new("dismiss-button", "Not Now")
2107                                    .style(ButtonStyle::Transparent)
2108                                    .color(Color::Muted)
2109                                    .on_click({
2110                                        let agent_panel = cx.entity();
2111                                        move |_, _, cx| {
2112                                            agent_panel.update(cx, |this, cx| {
2113                                                this.hide_upsell = true;
2114                                                cx.notify();
2115                                            });
2116                                        }
2117                                    }),
2118                            )
2119                            .child(
2120                                Button::new("cta-button", "Upgrade to Zed Pro")
2121                                    .style(ButtonStyle::Transparent)
2122                                    .on_click(|_, _, cx| cx.open_url(&zed_urls::account_url(cx))),
2123                            ),
2124                    ),
2125            );
2126
2127        self.render_upsell_container(cx, contents)
2128    }
2129
2130    fn render_trial_upsell(&self, cx: &mut Context<Self>) -> impl IntoElement {
2131        let checkbox = CheckboxWithLabel::new(
2132            "dont-show-again",
2133            Label::new("Don't show again").color(Color::Muted),
2134            ToggleState::Unselected,
2135            move |toggle_state, _window, cx| {
2136                let toggle_state_bool = toggle_state.selected();
2137
2138                Upsell::set_dismissed(toggle_state_bool, cx);
2139            },
2140        );
2141
2142        let contents = div()
2143            .size_full()
2144            .gap_2()
2145            .flex()
2146            .flex_col()
2147            .child(Headline::new("Build better with Zed Pro").size(HeadlineSize::Small))
2148            .child(
2149                Label::new("Try Zed Pro for free for 14 days - no credit card required.")
2150                    .size(LabelSize::Small),
2151            )
2152            .child(
2153                Label::new(
2154                    "Use your own API keys or enable usage-based billing once you hit the cap.",
2155                )
2156                .color(Color::Muted),
2157            )
2158            .child(
2159                h_flex()
2160                    .w_full()
2161                    .px_neg_1()
2162                    .justify_between()
2163                    .items_center()
2164                    .child(h_flex().items_center().gap_1().child(checkbox))
2165                    .child(
2166                        h_flex()
2167                            .gap_2()
2168                            .child(
2169                                Button::new("dismiss-button", "Not Now")
2170                                    .style(ButtonStyle::Transparent)
2171                                    .color(Color::Muted)
2172                                    .on_click({
2173                                        let agent_panel = cx.entity();
2174                                        move |_, _, cx| {
2175                                            agent_panel.update(cx, |this, cx| {
2176                                                this.hide_upsell = true;
2177                                                cx.notify();
2178                                            });
2179                                        }
2180                                    }),
2181                            )
2182                            .child(
2183                                Button::new("cta-button", "Start Trial")
2184                                    .style(ButtonStyle::Transparent)
2185                                    .on_click(|_, _, cx| cx.open_url(&zed_urls::account_url(cx))),
2186                            ),
2187                    ),
2188            );
2189
2190        self.render_upsell_container(cx, contents)
2191    }
2192
2193    fn render_trial_end_upsell(
2194        &self,
2195        _window: &mut Window,
2196        cx: &mut Context<Self>,
2197    ) -> Option<impl IntoElement> {
2198        if !self.should_render_trial_end_upsell(cx) {
2199            return None;
2200        }
2201
2202        Some(
2203            self.render_upsell_container(
2204                cx,
2205                div()
2206                    .size_full()
2207                    .gap_2()
2208                    .flex()
2209                    .flex_col()
2210                    .child(
2211                        Headline::new("Your Zed Pro trial has expired.").size(HeadlineSize::Small),
2212                    )
2213                    .child(
2214                        Label::new("You've been automatically reset to the free plan.")
2215                            .size(LabelSize::Small),
2216                    )
2217                    .child(
2218                        h_flex()
2219                            .w_full()
2220                            .px_neg_1()
2221                            .justify_between()
2222                            .items_center()
2223                            .child(div())
2224                            .child(
2225                                h_flex()
2226                                    .gap_2()
2227                                    .child(
2228                                        Button::new("dismiss-button", "Stay on Free")
2229                                            .style(ButtonStyle::Transparent)
2230                                            .color(Color::Muted)
2231                                            .on_click({
2232                                                let agent_panel = cx.entity();
2233                                                move |_, _, cx| {
2234                                                    agent_panel.update(cx, |_this, cx| {
2235                                                        TrialEndUpsell::set_dismissed(true, cx);
2236                                                        cx.notify();
2237                                                    });
2238                                                }
2239                                            }),
2240                                    )
2241                                    .child(
2242                                        Button::new("cta-button", "Upgrade to Zed Pro")
2243                                            .style(ButtonStyle::Transparent)
2244                                            .on_click(|_, _, cx| {
2245                                                cx.open_url(&zed_urls::account_url(cx))
2246                                            }),
2247                                    ),
2248                            ),
2249                    ),
2250            ),
2251        )
2252    }
2253
2254    fn render_upsell_container(&self, cx: &mut Context<Self>, content: Div) -> Div {
2255        div().p_2().child(
2256            v_flex()
2257                .w_full()
2258                .elevation_2(cx)
2259                .rounded(px(8.))
2260                .bg(cx.theme().colors().background.alpha(0.5))
2261                .p(px(3.))
2262                .child(
2263                    div()
2264                        .gap_2()
2265                        .flex()
2266                        .flex_col()
2267                        .size_full()
2268                        .border_1()
2269                        .rounded(px(5.))
2270                        .border_color(cx.theme().colors().text.alpha(0.1))
2271                        .overflow_hidden()
2272                        .relative()
2273                        .bg(cx.theme().colors().panel_background)
2274                        .px_4()
2275                        .py_3()
2276                        .child(
2277                            div()
2278                                .absolute()
2279                                .top_0()
2280                                .right(px(-1.0))
2281                                .w(px(441.))
2282                                .h(px(167.))
2283                                .child(
2284                                    Vector::new(
2285                                        VectorName::Grid,
2286                                        rems_from_px(441.),
2287                                        rems_from_px(167.),
2288                                    )
2289                                    .color(ui::Color::Custom(cx.theme().colors().text.alpha(0.1))),
2290                                ),
2291                        )
2292                        .child(
2293                            div()
2294                                .absolute()
2295                                .top(px(-8.0))
2296                                .right_0()
2297                                .w(px(400.))
2298                                .h(px(92.))
2299                                .child(
2300                                    Vector::new(
2301                                        VectorName::AiGrid,
2302                                        rems_from_px(400.),
2303                                        rems_from_px(92.),
2304                                    )
2305                                    .color(ui::Color::Custom(cx.theme().colors().text.alpha(0.32))),
2306                                ),
2307                        )
2308                        // .child(
2309                        //     div()
2310                        //         .absolute()
2311                        //         .top_0()
2312                        //         .right(px(360.))
2313                        //         .size(px(401.))
2314                        //         .overflow_hidden()
2315                        //         .bg(cx.theme().colors().panel_background)
2316                        // )
2317                        .child(
2318                            div()
2319                                .absolute()
2320                                .top_0()
2321                                .right_0()
2322                                .w(px(660.))
2323                                .h(px(401.))
2324                                .overflow_hidden()
2325                                .bg(linear_gradient(
2326                                    75.,
2327                                    linear_color_stop(
2328                                        cx.theme().colors().panel_background.alpha(0.01),
2329                                        1.0,
2330                                    ),
2331                                    linear_color_stop(cx.theme().colors().panel_background, 0.45),
2332                                )),
2333                        )
2334                        .child(content),
2335                ),
2336        )
2337    }
2338
2339    fn render_thread_empty_state(
2340        &self,
2341        window: &mut Window,
2342        cx: &mut Context<Self>,
2343    ) -> impl IntoElement {
2344        let recent_history = self
2345            .history_store
2346            .update(cx, |this, cx| this.recent_entries(6, cx));
2347
2348        let model_registry = LanguageModelRegistry::read_global(cx);
2349        let configuration_error =
2350            model_registry.configuration_error(model_registry.default_model(), cx);
2351        let no_error = configuration_error.is_none();
2352        let focus_handle = self.focus_handle(cx);
2353
2354        v_flex()
2355            .size_full()
2356            .bg(cx.theme().colors().panel_background)
2357            .when(recent_history.is_empty(), |this| {
2358                let configuration_error_ref = &configuration_error;
2359                this.child(
2360                    v_flex()
2361                        .size_full()
2362                        .max_w_80()
2363                        .mx_auto()
2364                        .justify_center()
2365                        .items_center()
2366                        .gap_1()
2367                        .child(h_flex().child(Headline::new("Welcome to the Agent Panel")))
2368                        .when(no_error, |parent| {
2369                            parent
2370                                .child(
2371                                    h_flex().child(
2372                                        Label::new("Ask and build anything.")
2373                                            .color(Color::Muted)
2374                                            .mb_2p5(),
2375                                    ),
2376                                )
2377                                .child(
2378                                    Button::new("new-thread", "Start New Thread")
2379                                        .icon(IconName::Plus)
2380                                        .icon_position(IconPosition::Start)
2381                                        .icon_size(IconSize::Small)
2382                                        .icon_color(Color::Muted)
2383                                        .full_width()
2384                                        .key_binding(KeyBinding::for_action_in(
2385                                            &NewThread::default(),
2386                                            &focus_handle,
2387                                            window,
2388                                            cx,
2389                                        ))
2390                                        .on_click(|_event, window, cx| {
2391                                            window.dispatch_action(
2392                                                NewThread::default().boxed_clone(),
2393                                                cx,
2394                                            )
2395                                        }),
2396                                )
2397                                .child(
2398                                    Button::new("context", "Add Context")
2399                                        .icon(IconName::FileCode)
2400                                        .icon_position(IconPosition::Start)
2401                                        .icon_size(IconSize::Small)
2402                                        .icon_color(Color::Muted)
2403                                        .full_width()
2404                                        .key_binding(KeyBinding::for_action_in(
2405                                            &ToggleContextPicker,
2406                                            &focus_handle,
2407                                            window,
2408                                            cx,
2409                                        ))
2410                                        .on_click(|_event, window, cx| {
2411                                            window.dispatch_action(
2412                                                ToggleContextPicker.boxed_clone(),
2413                                                cx,
2414                                            )
2415                                        }),
2416                                )
2417                                .child(
2418                                    Button::new("mode", "Switch Model")
2419                                        .icon(IconName::DatabaseZap)
2420                                        .icon_position(IconPosition::Start)
2421                                        .icon_size(IconSize::Small)
2422                                        .icon_color(Color::Muted)
2423                                        .full_width()
2424                                        .key_binding(KeyBinding::for_action_in(
2425                                            &ToggleModelSelector,
2426                                            &focus_handle,
2427                                            window,
2428                                            cx,
2429                                        ))
2430                                        .on_click(|_event, window, cx| {
2431                                            window.dispatch_action(
2432                                                ToggleModelSelector.boxed_clone(),
2433                                                cx,
2434                                            )
2435                                        }),
2436                                )
2437                                .child(
2438                                    Button::new("settings", "View Settings")
2439                                        .icon(IconName::Settings)
2440                                        .icon_position(IconPosition::Start)
2441                                        .icon_size(IconSize::Small)
2442                                        .icon_color(Color::Muted)
2443                                        .full_width()
2444                                        .key_binding(KeyBinding::for_action_in(
2445                                            &OpenConfiguration,
2446                                            &focus_handle,
2447                                            window,
2448                                            cx,
2449                                        ))
2450                                        .on_click(|_event, window, cx| {
2451                                            window.dispatch_action(
2452                                                OpenConfiguration.boxed_clone(),
2453                                                cx,
2454                                            )
2455                                        }),
2456                                )
2457                        })
2458                        .map(|parent| match configuration_error_ref {
2459                            Some(
2460                                err @ (ConfigurationError::ModelNotFound
2461                                | ConfigurationError::ProviderNotAuthenticated(_)
2462                                | ConfigurationError::NoProvider),
2463                            ) => parent
2464                                .child(h_flex().child(
2465                                    Label::new(err.to_string()).color(Color::Muted).mb_2p5(),
2466                                ))
2467                                .child(
2468                                    Button::new("settings", "Configure a Provider")
2469                                        .icon(IconName::Settings)
2470                                        .icon_position(IconPosition::Start)
2471                                        .icon_size(IconSize::Small)
2472                                        .icon_color(Color::Muted)
2473                                        .full_width()
2474                                        .key_binding(KeyBinding::for_action_in(
2475                                            &OpenConfiguration,
2476                                            &focus_handle,
2477                                            window,
2478                                            cx,
2479                                        ))
2480                                        .on_click(|_event, window, cx| {
2481                                            window.dispatch_action(
2482                                                OpenConfiguration.boxed_clone(),
2483                                                cx,
2484                                            )
2485                                        }),
2486                                ),
2487                            Some(ConfigurationError::ProviderPendingTermsAcceptance(provider)) => {
2488                                parent.children(provider.render_accept_terms(
2489                                    LanguageModelProviderTosView::ThreadFreshStart,
2490                                    cx,
2491                                ))
2492                            }
2493                            None => parent,
2494                        }),
2495                )
2496            })
2497            .when(!recent_history.is_empty(), |parent| {
2498                let focus_handle = focus_handle.clone();
2499                let configuration_error_ref = &configuration_error;
2500
2501                parent
2502                    .overflow_hidden()
2503                    .p_1p5()
2504                    .justify_end()
2505                    .gap_1()
2506                    .child(
2507                        h_flex()
2508                            .pl_1p5()
2509                            .pb_1()
2510                            .w_full()
2511                            .justify_between()
2512                            .border_b_1()
2513                            .border_color(cx.theme().colors().border_variant)
2514                            .child(
2515                                Label::new("Recent")
2516                                    .size(LabelSize::Small)
2517                                    .color(Color::Muted),
2518                            )
2519                            .child(
2520                                Button::new("view-history", "View All")
2521                                    .style(ButtonStyle::Subtle)
2522                                    .label_size(LabelSize::Small)
2523                                    .key_binding(
2524                                        KeyBinding::for_action_in(
2525                                            &OpenHistory,
2526                                            &self.focus_handle(cx),
2527                                            window,
2528                                            cx,
2529                                        )
2530                                        .map(|kb| kb.size(rems_from_px(12.))),
2531                                    )
2532                                    .on_click(move |_event, window, cx| {
2533                                        window.dispatch_action(OpenHistory.boxed_clone(), cx);
2534                                    }),
2535                            ),
2536                    )
2537                    .child(
2538                        v_flex()
2539                            .gap_1()
2540                            .children(recent_history.into_iter().enumerate().map(
2541                                |(index, entry)| {
2542                                    // TODO: Add keyboard navigation.
2543                                    let is_hovered =
2544                                        self.hovered_recent_history_item == Some(index);
2545                                    HistoryEntryElement::new(entry.clone(), cx.entity().downgrade())
2546                                        .hovered(is_hovered)
2547                                        .on_hover(cx.listener(
2548                                            move |this, is_hovered, _window, cx| {
2549                                                if *is_hovered {
2550                                                    this.hovered_recent_history_item = Some(index);
2551                                                } else if this.hovered_recent_history_item
2552                                                    == Some(index)
2553                                                {
2554                                                    this.hovered_recent_history_item = None;
2555                                                }
2556                                                cx.notify();
2557                                            },
2558                                        ))
2559                                        .into_any_element()
2560                                },
2561                            )),
2562                    )
2563                    .map(|parent| match configuration_error_ref {
2564                        Some(
2565                            err @ (ConfigurationError::ModelNotFound
2566                            | ConfigurationError::ProviderNotAuthenticated(_)
2567                            | ConfigurationError::NoProvider),
2568                        ) => parent.child(
2569                            Banner::new()
2570                                .severity(ui::Severity::Warning)
2571                                .child(Label::new(err.to_string()).size(LabelSize::Small))
2572                                .action_slot(
2573                                    Button::new("settings", "Configure Provider")
2574                                        .style(ButtonStyle::Tinted(ui::TintColor::Warning))
2575                                        .label_size(LabelSize::Small)
2576                                        .key_binding(
2577                                            KeyBinding::for_action_in(
2578                                                &OpenConfiguration,
2579                                                &focus_handle,
2580                                                window,
2581                                                cx,
2582                                            )
2583                                            .map(|kb| kb.size(rems_from_px(12.))),
2584                                        )
2585                                        .on_click(|_event, window, cx| {
2586                                            window.dispatch_action(
2587                                                OpenConfiguration.boxed_clone(),
2588                                                cx,
2589                                            )
2590                                        }),
2591                                ),
2592                        ),
2593                        Some(ConfigurationError::ProviderPendingTermsAcceptance(provider)) => {
2594                            parent.child(Banner::new().severity(ui::Severity::Warning).child(
2595                                h_flex().w_full().children(provider.render_accept_terms(
2596                                    LanguageModelProviderTosView::ThreadtEmptyState,
2597                                    cx,
2598                                )),
2599                            ))
2600                        }
2601                        None => parent,
2602                    })
2603            })
2604    }
2605
2606    fn render_tool_use_limit_reached(
2607        &self,
2608        window: &mut Window,
2609        cx: &mut Context<Self>,
2610    ) -> Option<AnyElement> {
2611        let active_thread = match &self.active_view {
2612            ActiveView::Thread { thread, .. } => thread,
2613            ActiveView::TextThread { .. } | ActiveView::History | ActiveView::Configuration => {
2614                return None;
2615            }
2616        };
2617
2618        let agent = active_thread.read(cx).agent().read(cx);
2619
2620        let tool_use_limit_reached = agent.tool_use_limit_reached();
2621        if !tool_use_limit_reached {
2622            return None;
2623        }
2624
2625        let model = agent.configured_model()?.model;
2626
2627        let focus_handle = self.focus_handle(cx);
2628
2629        let banner = Banner::new()
2630            .severity(ui::Severity::Info)
2631            .child(Label::new("Consecutive tool use limit reached.").size(LabelSize::Small))
2632            .action_slot(
2633                h_flex()
2634                    .gap_1()
2635                    .child(
2636                        Button::new("continue-conversation", "Continue")
2637                            .layer(ElevationIndex::ModalSurface)
2638                            .label_size(LabelSize::Small)
2639                            .key_binding(
2640                                KeyBinding::for_action_in(
2641                                    &ContinueThread,
2642                                    &focus_handle,
2643                                    window,
2644                                    cx,
2645                                )
2646                                .map(|kb| kb.size(rems_from_px(10.))),
2647                            )
2648                            .on_click(cx.listener(|this, _, window, cx| {
2649                                this.continue_conversation(window, cx);
2650                            })),
2651                    )
2652                    .when(model.supports_burn_mode(), |this| {
2653                        this.child(
2654                            Button::new("continue-burn-mode", "Continue with Burn Mode")
2655                                .style(ButtonStyle::Filled)
2656                                .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2657                                .layer(ElevationIndex::ModalSurface)
2658                                .label_size(LabelSize::Small)
2659                                .key_binding(
2660                                    KeyBinding::for_action_in(
2661                                        &ContinueWithBurnMode,
2662                                        &focus_handle,
2663                                        window,
2664                                        cx,
2665                                    )
2666                                    .map(|kb| kb.size(rems_from_px(10.))),
2667                                )
2668                                .tooltip(Tooltip::text("Enable Burn Mode for unlimited tool use."))
2669                                .on_click({
2670                                    let active_thread = active_thread.clone();
2671                                    cx.listener(move |this, _, window, cx| {
2672                                        active_thread.update(cx, |active_thread, cx| {
2673                                            active_thread.agent().update(cx, |agent, _cx| {
2674                                                agent.set_completion_mode(CompletionMode::Burn);
2675                                            });
2676                                        });
2677                                        this.continue_conversation(window, cx);
2678                                    })
2679                                }),
2680                        )
2681                    }),
2682            );
2683
2684        Some(div().px_2().pb_2().child(banner).into_any_element())
2685    }
2686
2687    fn render_payment_required_error(
2688        &self,
2689        thread: &Entity<ActiveThread>,
2690        cx: &mut Context<Self>,
2691    ) -> AnyElement {
2692        const ERROR_MESSAGE: &str = "Free tier exceeded. Subscribe and add payment to continue using Zed LLMs. You'll be billed at cost for tokens used.";
2693
2694        v_flex()
2695            .gap_0p5()
2696            .child(
2697                h_flex()
2698                    .gap_1p5()
2699                    .items_center()
2700                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2701                    .child(Label::new("Free Usage Exceeded").weight(FontWeight::MEDIUM)),
2702            )
2703            .child(
2704                div()
2705                    .id("error-message")
2706                    .max_h_24()
2707                    .overflow_y_scroll()
2708                    .child(Label::new(ERROR_MESSAGE)),
2709            )
2710            .child(
2711                h_flex()
2712                    .justify_end()
2713                    .mt_1()
2714                    .gap_1()
2715                    .child(self.create_copy_button(ERROR_MESSAGE))
2716                    .child(Button::new("subscribe", "Subscribe").on_click(cx.listener({
2717                        let thread = thread.clone();
2718                        move |_, _, _, cx| {
2719                            thread.update(cx, |this, _cx| {
2720                                this.clear_last_error();
2721                            });
2722
2723                            cx.open_url(&zed_urls::account_url(cx));
2724                            cx.notify();
2725                        }
2726                    })))
2727                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener({
2728                        let thread = thread.clone();
2729                        move |_, _, _, cx| {
2730                            thread.update(cx, |this, _cx| {
2731                                this.clear_last_error();
2732                            });
2733
2734                            cx.notify();
2735                        }
2736                    }))),
2737            )
2738            .into_any()
2739    }
2740
2741    fn render_model_request_limit_reached_error(
2742        &self,
2743        plan: Plan,
2744        thread: &Entity<ActiveThread>,
2745        cx: &mut Context<Self>,
2746    ) -> AnyElement {
2747        let error_message = match plan {
2748            Plan::ZedPro => {
2749                "Model request limit reached. Upgrade to usage-based billing for more requests."
2750            }
2751            Plan::ZedProTrial => {
2752                "Model request limit reached. Upgrade to Zed Pro for more requests."
2753            }
2754            Plan::Free => "Model request limit reached. Upgrade to Zed Pro for more requests.",
2755        };
2756        let call_to_action = match plan {
2757            Plan::ZedPro => "Upgrade to usage-based billing",
2758            Plan::ZedProTrial => "Upgrade to Zed Pro",
2759            Plan::Free => "Upgrade to Zed Pro",
2760        };
2761
2762        v_flex()
2763            .gap_0p5()
2764            .child(
2765                h_flex()
2766                    .gap_1p5()
2767                    .items_center()
2768                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2769                    .child(Label::new("Model Request Limit Reached").weight(FontWeight::MEDIUM)),
2770            )
2771            .child(
2772                div()
2773                    .id("error-message")
2774                    .max_h_24()
2775                    .overflow_y_scroll()
2776                    .child(Label::new(error_message)),
2777            )
2778            .child(
2779                h_flex()
2780                    .justify_end()
2781                    .mt_1()
2782                    .gap_1()
2783                    .child(self.create_copy_button(error_message))
2784                    .child(
2785                        Button::new("subscribe", call_to_action).on_click(cx.listener({
2786                            let thread = thread.clone();
2787                            move |_, _, _, cx| {
2788                                thread.update(cx, |this, _cx| {
2789                                    this.clear_last_error();
2790                                });
2791
2792                                cx.open_url(&zed_urls::account_url(cx));
2793                                cx.notify();
2794                            }
2795                        })),
2796                    )
2797                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener({
2798                        let thread = thread.clone();
2799                        move |_, _, _, cx| {
2800                            thread.update(cx, |this, _cx| {
2801                                this.clear_last_error();
2802                            });
2803
2804                            cx.notify();
2805                        }
2806                    }))),
2807            )
2808            .into_any()
2809    }
2810
2811    fn render_error_message(
2812        &self,
2813        header: SharedString,
2814        message: SharedString,
2815        thread: &Entity<ActiveThread>,
2816        cx: &mut Context<Self>,
2817    ) -> AnyElement {
2818        let message_with_header = format!("{}\n{}", header, message);
2819        v_flex()
2820            .gap_0p5()
2821            .child(
2822                h_flex()
2823                    .gap_1p5()
2824                    .items_center()
2825                    .child(Icon::new(IconName::XCircle).color(Color::Error))
2826                    .child(Label::new(header).weight(FontWeight::MEDIUM)),
2827            )
2828            .child(
2829                div()
2830                    .id("error-message")
2831                    .max_h_32()
2832                    .overflow_y_scroll()
2833                    .child(Label::new(message.clone())),
2834            )
2835            .child(
2836                h_flex()
2837                    .justify_end()
2838                    .mt_1()
2839                    .gap_1()
2840                    .child(self.create_copy_button(message_with_header))
2841                    .child(Button::new("dismiss", "Dismiss").on_click(cx.listener({
2842                        let thread = thread.clone();
2843                        move |_, _, _, cx| {
2844                            thread.update(cx, |this, _cx| {
2845                                this.clear_last_error();
2846                            });
2847
2848                            cx.notify();
2849                        }
2850                    }))),
2851            )
2852            .into_any()
2853    }
2854
2855    fn render_prompt_editor(
2856        &self,
2857        context_editor: &Entity<TextThreadEditor>,
2858        buffer_search_bar: &Entity<BufferSearchBar>,
2859        window: &mut Window,
2860        cx: &mut Context<Self>,
2861    ) -> Div {
2862        let mut registrar = buffer_search::DivRegistrar::new(
2863            |this, _, _cx| match &this.active_view {
2864                ActiveView::TextThread {
2865                    buffer_search_bar, ..
2866                } => Some(buffer_search_bar.clone()),
2867                _ => None,
2868            },
2869            cx,
2870        );
2871        BufferSearchBar::register(&mut registrar);
2872        registrar
2873            .into_div()
2874            .size_full()
2875            .relative()
2876            .map(|parent| {
2877                buffer_search_bar.update(cx, |buffer_search_bar, cx| {
2878                    if buffer_search_bar.is_dismissed() {
2879                        return parent;
2880                    }
2881                    parent.child(
2882                        div()
2883                            .p(DynamicSpacing::Base08.rems(cx))
2884                            .border_b_1()
2885                            .border_color(cx.theme().colors().border_variant)
2886                            .bg(cx.theme().colors().editor_background)
2887                            .child(buffer_search_bar.render(window, cx)),
2888                    )
2889                })
2890            })
2891            .child(context_editor.clone())
2892            .child(self.render_drag_target(cx))
2893    }
2894
2895    fn render_drag_target(&self, cx: &Context<Self>) -> Div {
2896        let is_local = self.project.read(cx).is_local();
2897        div()
2898            .invisible()
2899            .absolute()
2900            .top_0()
2901            .right_0()
2902            .bottom_0()
2903            .left_0()
2904            .bg(cx.theme().colors().drop_target_background)
2905            .drag_over::<DraggedTab>(|this, _, _, _| this.visible())
2906            .drag_over::<DraggedSelection>(|this, _, _, _| this.visible())
2907            .when(is_local, |this| {
2908                this.drag_over::<ExternalPaths>(|this, _, _, _| this.visible())
2909            })
2910            .on_drop(cx.listener(move |this, tab: &DraggedTab, window, cx| {
2911                let item = tab.pane.read(cx).item_for_index(tab.ix);
2912                let project_paths = item
2913                    .and_then(|item| item.project_path(cx))
2914                    .into_iter()
2915                    .collect::<Vec<_>>();
2916                this.handle_drop(project_paths, vec![], window, cx);
2917            }))
2918            .on_drop(
2919                cx.listener(move |this, selection: &DraggedSelection, window, cx| {
2920                    let project_paths = selection
2921                        .items()
2922                        .filter_map(|item| this.project.read(cx).path_for_entry(item.entry_id, cx))
2923                        .collect::<Vec<_>>();
2924                    this.handle_drop(project_paths, vec![], window, cx);
2925                }),
2926            )
2927            .on_drop(cx.listener(move |this, paths: &ExternalPaths, window, cx| {
2928                let tasks = paths
2929                    .paths()
2930                    .into_iter()
2931                    .map(|path| {
2932                        Workspace::project_path_for_path(this.project.clone(), &path, false, cx)
2933                    })
2934                    .collect::<Vec<_>>();
2935                cx.spawn_in(window, async move |this, cx| {
2936                    let mut paths = vec![];
2937                    let mut added_worktrees = vec![];
2938                    let opened_paths = futures::future::join_all(tasks).await;
2939                    for entry in opened_paths {
2940                        if let Some((worktree, project_path)) = entry.log_err() {
2941                            added_worktrees.push(worktree);
2942                            paths.push(project_path);
2943                        }
2944                    }
2945                    this.update_in(cx, |this, window, cx| {
2946                        this.handle_drop(paths, added_worktrees, window, cx);
2947                    })
2948                    .ok();
2949                })
2950                .detach();
2951            }))
2952    }
2953
2954    fn handle_drop(
2955        &mut self,
2956        paths: Vec<ProjectPath>,
2957        added_worktrees: Vec<Entity<Worktree>>,
2958        window: &mut Window,
2959        cx: &mut Context<Self>,
2960    ) {
2961        match &self.active_view {
2962            ActiveView::Thread { thread, .. } => {
2963                let context_store = thread.read(cx).context_store().clone();
2964                context_store.update(cx, move |context_store, cx| {
2965                    let mut tasks = Vec::new();
2966                    for project_path in &paths {
2967                        tasks.push(context_store.add_file_from_path(
2968                            project_path.clone(),
2969                            false,
2970                            cx,
2971                        ));
2972                    }
2973                    cx.background_spawn(async move {
2974                        futures::future::join_all(tasks).await;
2975                        // Need to hold onto the worktrees until they have already been used when
2976                        // opening the buffers.
2977                        drop(added_worktrees);
2978                    })
2979                    .detach();
2980                });
2981            }
2982            ActiveView::TextThread { context_editor, .. } => {
2983                context_editor.update(cx, |context_editor, cx| {
2984                    TextThreadEditor::insert_dragged_files(
2985                        context_editor,
2986                        paths,
2987                        added_worktrees,
2988                        window,
2989                        cx,
2990                    );
2991                });
2992            }
2993            ActiveView::History | ActiveView::Configuration => {}
2994        }
2995    }
2996
2997    fn create_copy_button(&self, message: impl Into<String>) -> impl IntoElement {
2998        let message = message.into();
2999        IconButton::new("copy", IconName::Copy)
3000            .on_click(move |_, _, cx| {
3001                cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
3002            })
3003            .tooltip(Tooltip::text("Copy Error Message"))
3004    }
3005
3006    fn key_context(&self) -> KeyContext {
3007        let mut key_context = KeyContext::new_with_defaults();
3008        key_context.add("AgentPanel");
3009        if matches!(self.active_view, ActiveView::TextThread { .. }) {
3010            key_context.add("prompt_editor");
3011        }
3012        key_context
3013    }
3014}
3015
3016impl Render for AgentPanel {
3017    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3018        // WARNING: Changes to this element hierarchy can have
3019        // non-obvious implications to the layout of children.
3020        //
3021        // If you need to change it, please confirm:
3022        // - The message editor expands (cmd-option-esc) correctly
3023        // - When expanded, the buttons at the bottom of the panel are displayed correctly
3024        // - Font size works as expected and can be changed with cmd-+/cmd-
3025        // - Scrolling in all views works as expected
3026        // - Files can be dropped into the panel
3027        let content = v_flex()
3028            .key_context(self.key_context())
3029            .justify_between()
3030            .size_full()
3031            .on_action(cx.listener(Self::cancel))
3032            .on_action(cx.listener(|this, action: &NewThread, window, cx| {
3033                this.new_thread(action, window, cx);
3034            }))
3035            .on_action(cx.listener(|this, _: &OpenHistory, window, cx| {
3036                this.open_history(window, cx);
3037            }))
3038            .on_action(cx.listener(|this, _: &OpenConfiguration, window, cx| {
3039                this.open_configuration(window, cx);
3040            }))
3041            .on_action(cx.listener(Self::open_active_thread_as_markdown))
3042            .on_action(cx.listener(Self::deploy_rules_library))
3043            .on_action(cx.listener(Self::open_agent_diff))
3044            .on_action(cx.listener(Self::go_back))
3045            .on_action(cx.listener(Self::toggle_navigation_menu))
3046            .on_action(cx.listener(Self::toggle_options_menu))
3047            .on_action(cx.listener(Self::increase_font_size))
3048            .on_action(cx.listener(Self::decrease_font_size))
3049            .on_action(cx.listener(Self::reset_font_size))
3050            .on_action(cx.listener(Self::toggle_zoom))
3051            .on_action(cx.listener(|this, _: &ContinueThread, window, cx| {
3052                this.continue_conversation(window, cx);
3053            }))
3054            .on_action(cx.listener(|this, _: &ContinueWithBurnMode, window, cx| {
3055                match &this.active_view {
3056                    ActiveView::Thread { thread, .. } => {
3057                        thread.update(cx, |active_thread, cx| {
3058                            active_thread.agent().update(cx, |agent, _cx| {
3059                                agent.set_completion_mode(CompletionMode::Burn);
3060                            });
3061                        });
3062                        this.continue_conversation(window, cx);
3063                    }
3064                    ActiveView::TextThread { .. }
3065                    | ActiveView::History
3066                    | ActiveView::Configuration => {}
3067                }
3068            }))
3069            .on_action(cx.listener(Self::toggle_burn_mode))
3070            .child(self.render_toolbar(window, cx))
3071            .children(self.render_upsell(window, cx))
3072            .children(self.render_trial_end_upsell(window, cx))
3073            .map(|parent| match &self.active_view {
3074                ActiveView::Thread {
3075                    thread,
3076                    message_editor,
3077                    ..
3078                } => parent
3079                    .relative()
3080                    .child(if thread.read(cx).is_empty() {
3081                        self.render_thread_empty_state(window, cx)
3082                            .into_any_element()
3083                    } else {
3084                        thread.clone().into_any_element()
3085                    })
3086                    .children(self.render_tool_use_limit_reached(window, cx))
3087                    .child(h_flex().child(message_editor.clone()))
3088                    .when_some(thread.read(cx).last_error(), |this, last_error| {
3089                        this.child(
3090                            div()
3091                                .absolute()
3092                                .right_3()
3093                                .bottom_12()
3094                                .max_w_96()
3095                                .py_2()
3096                                .px_3()
3097                                .elevation_2(cx)
3098                                .occlude()
3099                                .child(match last_error {
3100                                    ThreadError::PaymentRequired => {
3101                                        self.render_payment_required_error(thread, cx)
3102                                    }
3103                                    ThreadError::ModelRequestLimitReached { plan } => self
3104                                        .render_model_request_limit_reached_error(plan, thread, cx),
3105                                    ThreadError::Message { header, message } => {
3106                                        self.render_error_message(header, message, thread, cx)
3107                                    }
3108                                })
3109                                .into_any(),
3110                        )
3111                    })
3112                    .child(self.render_drag_target(cx)),
3113                ActiveView::History => parent.child(self.history.clone()),
3114                ActiveView::TextThread {
3115                    context_editor,
3116                    buffer_search_bar,
3117                    ..
3118                } => parent.child(self.render_prompt_editor(
3119                    context_editor,
3120                    buffer_search_bar,
3121                    window,
3122                    cx,
3123                )),
3124                ActiveView::Configuration => parent.children(self.configuration.clone()),
3125            });
3126
3127        match self.active_view.which_font_size_used() {
3128            WhichFontSize::AgentFont => {
3129                WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
3130                    .size_full()
3131                    .child(content)
3132                    .into_any()
3133            }
3134            _ => content.into_any(),
3135        }
3136    }
3137}
3138
3139struct PromptLibraryInlineAssist {
3140    workspace: WeakEntity<Workspace>,
3141}
3142
3143impl PromptLibraryInlineAssist {
3144    pub fn new(workspace: WeakEntity<Workspace>) -> Self {
3145        Self { workspace }
3146    }
3147}
3148
3149impl rules_library::InlineAssistDelegate for PromptLibraryInlineAssist {
3150    fn assist(
3151        &self,
3152        prompt_editor: &Entity<Editor>,
3153        initial_prompt: Option<String>,
3154        window: &mut Window,
3155        cx: &mut Context<RulesLibrary>,
3156    ) {
3157        InlineAssistant::update_global(cx, |assistant, cx| {
3158            let Some(project) = self
3159                .workspace
3160                .upgrade()
3161                .map(|workspace| workspace.read(cx).project().downgrade())
3162            else {
3163                return;
3164            };
3165            let prompt_store = None;
3166            let thread_store = None;
3167            let text_thread_store = None;
3168            let context_store = cx.new(|_| ContextStore::new(project.clone(), None));
3169            assistant.assist(
3170                &prompt_editor,
3171                self.workspace.clone(),
3172                context_store,
3173                project,
3174                prompt_store,
3175                thread_store,
3176                text_thread_store,
3177                initial_prompt,
3178                window,
3179                cx,
3180            )
3181        })
3182    }
3183
3184    fn focus_agent_panel(
3185        &self,
3186        workspace: &mut Workspace,
3187        window: &mut Window,
3188        cx: &mut Context<Workspace>,
3189    ) -> bool {
3190        workspace.focus_panel::<AgentPanel>(window, cx).is_some()
3191    }
3192}
3193
3194pub struct ConcreteAssistantPanelDelegate;
3195
3196impl AgentPanelDelegate for ConcreteAssistantPanelDelegate {
3197    fn active_context_editor(
3198        &self,
3199        workspace: &mut Workspace,
3200        _window: &mut Window,
3201        cx: &mut Context<Workspace>,
3202    ) -> Option<Entity<TextThreadEditor>> {
3203        let panel = workspace.panel::<AgentPanel>(cx)?;
3204        panel.read(cx).active_context_editor()
3205    }
3206
3207    fn open_saved_context(
3208        &self,
3209        workspace: &mut Workspace,
3210        path: Arc<Path>,
3211        window: &mut Window,
3212        cx: &mut Context<Workspace>,
3213    ) -> Task<Result<()>> {
3214        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3215            return Task::ready(Err(anyhow!("Agent panel not found")));
3216        };
3217
3218        panel.update(cx, |panel, cx| {
3219            panel.open_saved_prompt_editor(path, window, cx)
3220        })
3221    }
3222
3223    fn open_remote_context(
3224        &self,
3225        _workspace: &mut Workspace,
3226        _context_id: assistant_context::ContextId,
3227        _window: &mut Window,
3228        _cx: &mut Context<Workspace>,
3229    ) -> Task<Result<Entity<TextThreadEditor>>> {
3230        Task::ready(Err(anyhow!("opening remote context not implemented")))
3231    }
3232
3233    fn quote_selection(
3234        &self,
3235        workspace: &mut Workspace,
3236        selection_ranges: Vec<Range<Anchor>>,
3237        buffer: Entity<MultiBuffer>,
3238        window: &mut Window,
3239        cx: &mut Context<Workspace>,
3240    ) {
3241        let Some(panel) = workspace.panel::<AgentPanel>(cx) else {
3242            return;
3243        };
3244
3245        if !panel.focus_handle(cx).contains_focused(window, cx) {
3246            workspace.toggle_panel_focus::<AgentPanel>(window, cx);
3247        }
3248
3249        panel.update(cx, |_, cx| {
3250            // Wait to create a new context until the workspace is no longer
3251            // being updated.
3252            cx.defer_in(window, move |panel, window, cx| {
3253                if let Some(message_editor) = panel.active_message_editor() {
3254                    message_editor.update(cx, |message_editor, cx| {
3255                        message_editor.context_store().update(cx, |store, cx| {
3256                            let buffer = buffer.read(cx);
3257                            let selection_ranges = selection_ranges
3258                                .into_iter()
3259                                .flat_map(|range| {
3260                                    let (start_buffer, start) =
3261                                        buffer.text_anchor_for_position(range.start, cx)?;
3262                                    let (end_buffer, end) =
3263                                        buffer.text_anchor_for_position(range.end, cx)?;
3264                                    if start_buffer != end_buffer {
3265                                        return None;
3266                                    }
3267                                    Some((start_buffer, start..end))
3268                                })
3269                                .collect::<Vec<_>>();
3270
3271                            for (buffer, range) in selection_ranges {
3272                                store.add_selection(buffer, range, cx);
3273                            }
3274                        })
3275                    })
3276                } else if let Some(context_editor) = panel.active_context_editor() {
3277                    let snapshot = buffer.read(cx).snapshot(cx);
3278                    let selection_ranges = selection_ranges
3279                        .into_iter()
3280                        .map(|range| range.to_point(&snapshot))
3281                        .collect::<Vec<_>>();
3282
3283                    context_editor.update(cx, |context_editor, cx| {
3284                        context_editor.quote_ranges(selection_ranges, snapshot, window, cx)
3285                    });
3286                }
3287            });
3288        });
3289    }
3290}
3291
3292struct Upsell;
3293
3294impl Dismissable for Upsell {
3295    const KEY: &'static str = "dismissed-trial-upsell";
3296}
3297
3298struct TrialEndUpsell;
3299
3300impl Dismissable for TrialEndUpsell {
3301    const KEY: &'static str = "dismissed-trial-end-upsell";
3302}