active_thread.rs

   1use crate::AgentPanel;
   2use crate::context::{AgentContextHandle, RULES_ICON};
   3use crate::context_picker::{ContextPicker, MentionLink};
   4use crate::context_store::ContextStore;
   5use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   6use crate::message_editor::insert_message_creases;
   7use crate::thread::{
   8    LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, Thread, ThreadError,
   9    ThreadEvent, ThreadFeedback, ThreadSummary,
  10};
  11use crate::thread_store::{RulesLoadingError, TextThreadStore, ThreadStore};
  12use crate::tool_use::{PendingToolUseStatus, ToolUse};
  13use crate::ui::{
  14    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  15};
  16use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  17use anyhow::Context as _;
  18use assistant_tool::ToolUseStatus;
  19use audio::{Audio, Sound};
  20use collections::{HashMap, HashSet};
  21use editor::actions::{MoveUp, Paste};
  22use editor::scroll::Autoscroll;
  23use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  24use gpui::{
  25    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  26    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  27    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  28    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  29    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  30    pulsating_between,
  31};
  32use language::{Buffer, Language, LanguageRegistry};
  33use language_model::{
  34    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  35};
  36use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  37use markdown::{
  38    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  39};
  40use project::{ProjectEntryId, ProjectItem as _};
  41use rope::Point;
  42use settings::{Settings as _, SettingsStore, update_settings_file};
  43use std::ffi::OsStr;
  44use std::path::Path;
  45use std::rc::Rc;
  46use std::sync::Arc;
  47use std::time::Duration;
  48use text::ToPoint;
  49use theme::ThemeSettings;
  50use ui::{
  51    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  52    Tooltip, prelude::*,
  53};
  54use util::ResultExt as _;
  55use util::markdown::MarkdownCodeBlock;
  56use workspace::{CollaboratorId, Workspace};
  57use zed_actions::assistant::OpenRulesLibrary;
  58
  59pub struct ActiveThread {
  60    context_store: Entity<ContextStore>,
  61    language_registry: Arc<LanguageRegistry>,
  62    thread_store: Entity<ThreadStore>,
  63    text_thread_store: Entity<TextThreadStore>,
  64    thread: Entity<Thread>,
  65    workspace: WeakEntity<Workspace>,
  66    save_thread_task: Option<Task<()>>,
  67    messages: Vec<MessageId>,
  68    list_state: ListState,
  69    scrollbar_state: ScrollbarState,
  70    show_scrollbar: bool,
  71    hide_scrollbar_task: Option<Task<()>>,
  72    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  73    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  74    editing_message: Option<(MessageId, EditingMessageState)>,
  75    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  76    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  77    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  78    last_error: Option<ThreadError>,
  79    notifications: Vec<WindowHandle<AgentNotification>>,
  80    copied_code_block_ids: HashSet<(MessageId, usize)>,
  81    _subscriptions: Vec<Subscription>,
  82    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  83    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  84    _load_edited_message_context_task: Option<Task<()>>,
  85}
  86
  87struct RenderedMessage {
  88    language_registry: Arc<LanguageRegistry>,
  89    segments: Vec<RenderedMessageSegment>,
  90}
  91
  92#[derive(Clone)]
  93struct RenderedToolUse {
  94    label: Entity<Markdown>,
  95    input: Entity<Markdown>,
  96    output: Entity<Markdown>,
  97}
  98
  99impl RenderedMessage {
 100    fn from_segments(
 101        segments: &[MessageSegment],
 102        language_registry: Arc<LanguageRegistry>,
 103        cx: &mut App,
 104    ) -> Self {
 105        let mut this = Self {
 106            language_registry,
 107            segments: Vec::with_capacity(segments.len()),
 108        };
 109        for segment in segments {
 110            this.push_segment(segment, cx);
 111        }
 112        this
 113    }
 114
 115    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 116        if let Some(RenderedMessageSegment::Thinking {
 117            content,
 118            scroll_handle,
 119        }) = self.segments.last_mut()
 120        {
 121            content.update(cx, |markdown, cx| {
 122                markdown.append(text, cx);
 123            });
 124            scroll_handle.scroll_to_bottom();
 125        } else {
 126            self.segments.push(RenderedMessageSegment::Thinking {
 127                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 128                scroll_handle: ScrollHandle::default(),
 129            });
 130        }
 131    }
 132
 133    fn append_text(&mut self, text: &String, cx: &mut App) {
 134        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 135            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 136        } else {
 137            self.segments
 138                .push(RenderedMessageSegment::Text(parse_markdown(
 139                    SharedString::from(text),
 140                    self.language_registry.clone(),
 141                    cx,
 142                )));
 143        }
 144    }
 145
 146    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 147        match segment {
 148            MessageSegment::Thinking { text, .. } => {
 149                self.segments.push(RenderedMessageSegment::Thinking {
 150                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 151                    scroll_handle: ScrollHandle::default(),
 152                })
 153            }
 154            MessageSegment::Text(text) => {
 155                self.segments
 156                    .push(RenderedMessageSegment::Text(parse_markdown(
 157                        text.into(),
 158                        self.language_registry.clone(),
 159                        cx,
 160                    )))
 161            }
 162            MessageSegment::RedactedThinking(_) => {}
 163        };
 164    }
 165}
 166
 167enum RenderedMessageSegment {
 168    Thinking {
 169        content: Entity<Markdown>,
 170        scroll_handle: ScrollHandle,
 171    },
 172    Text(Entity<Markdown>),
 173}
 174
 175fn parse_markdown(
 176    text: SharedString,
 177    language_registry: Arc<LanguageRegistry>,
 178    cx: &mut App,
 179) -> Entity<Markdown> {
 180    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 181}
 182
 183pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 184    let theme_settings = ThemeSettings::get_global(cx);
 185    let colors = cx.theme().colors();
 186    let ui_font_size = TextSize::Default.rems(cx);
 187    let buffer_font_size = TextSize::Small.rems(cx);
 188    let mut text_style = window.text_style();
 189    let line_height = buffer_font_size * 1.75;
 190
 191    text_style.refine(&TextStyleRefinement {
 192        font_family: Some(theme_settings.ui_font.family.clone()),
 193        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 194        font_features: Some(theme_settings.ui_font.features.clone()),
 195        font_size: Some(ui_font_size.into()),
 196        line_height: Some(line_height.into()),
 197        color: Some(cx.theme().colors().text),
 198        ..Default::default()
 199    });
 200
 201    MarkdownStyle {
 202        base_text_style: text_style.clone(),
 203        syntax: cx.theme().syntax().clone(),
 204        selection_background_color: cx.theme().players().local().selection,
 205        code_block_overflow_x_scroll: true,
 206        table_overflow_x_scroll: true,
 207        heading_level_styles: Some(HeadingLevelStyles {
 208            h1: Some(TextStyleRefinement {
 209                font_size: Some(rems(1.15).into()),
 210                ..Default::default()
 211            }),
 212            h2: Some(TextStyleRefinement {
 213                font_size: Some(rems(1.1).into()),
 214                ..Default::default()
 215            }),
 216            h3: Some(TextStyleRefinement {
 217                font_size: Some(rems(1.05).into()),
 218                ..Default::default()
 219            }),
 220            h4: Some(TextStyleRefinement {
 221                font_size: Some(rems(1.).into()),
 222                ..Default::default()
 223            }),
 224            h5: Some(TextStyleRefinement {
 225                font_size: Some(rems(0.95).into()),
 226                ..Default::default()
 227            }),
 228            h6: Some(TextStyleRefinement {
 229                font_size: Some(rems(0.875).into()),
 230                ..Default::default()
 231            }),
 232        }),
 233        code_block: StyleRefinement {
 234            padding: EdgesRefinement {
 235                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 239            },
 240            background: Some(colors.editor_background.into()),
 241            text: Some(TextStyleRefinement {
 242                font_family: Some(theme_settings.buffer_font.family.clone()),
 243                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 244                font_features: Some(theme_settings.buffer_font.features.clone()),
 245                font_size: Some(buffer_font_size.into()),
 246                ..Default::default()
 247            }),
 248            ..Default::default()
 249        },
 250        inline_code: TextStyleRefinement {
 251            font_family: Some(theme_settings.buffer_font.family.clone()),
 252            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 253            font_features: Some(theme_settings.buffer_font.features.clone()),
 254            font_size: Some(buffer_font_size.into()),
 255            background_color: Some(colors.editor_foreground.opacity(0.08)),
 256            ..Default::default()
 257        },
 258        link: TextStyleRefinement {
 259            background_color: Some(colors.editor_foreground.opacity(0.025)),
 260            underline: Some(UnderlineStyle {
 261                color: Some(colors.text_accent.opacity(0.5)),
 262                thickness: px(1.),
 263                ..Default::default()
 264            }),
 265            ..Default::default()
 266        },
 267        link_callback: Some(Rc::new(move |url, cx| {
 268            if MentionLink::is_valid(url) {
 269                let colors = cx.theme().colors();
 270                Some(TextStyleRefinement {
 271                    background_color: Some(colors.element_background),
 272                    ..Default::default()
 273                })
 274            } else {
 275                None
 276            }
 277        })),
 278        ..Default::default()
 279    }
 280}
 281
 282fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 283    let theme_settings = ThemeSettings::get_global(cx);
 284    let colors = cx.theme().colors();
 285    let ui_font_size = TextSize::Default.rems(cx);
 286    let buffer_font_size = TextSize::Small.rems(cx);
 287    let mut text_style = window.text_style();
 288
 289    text_style.refine(&TextStyleRefinement {
 290        font_family: Some(theme_settings.ui_font.family.clone()),
 291        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 292        font_features: Some(theme_settings.ui_font.features.clone()),
 293        font_size: Some(ui_font_size.into()),
 294        color: Some(cx.theme().colors().text),
 295        ..Default::default()
 296    });
 297
 298    MarkdownStyle {
 299        base_text_style: text_style,
 300        syntax: cx.theme().syntax().clone(),
 301        selection_background_color: cx.theme().players().local().selection,
 302        code_block_overflow_x_scroll: true,
 303        code_block: StyleRefinement {
 304            margin: EdgesRefinement::default(),
 305            padding: EdgesRefinement::default(),
 306            background: Some(colors.editor_background.into()),
 307            border_color: None,
 308            border_widths: EdgesRefinement::default(),
 309            text: Some(TextStyleRefinement {
 310                font_family: Some(theme_settings.buffer_font.family.clone()),
 311                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 312                font_features: Some(theme_settings.buffer_font.features.clone()),
 313                font_size: Some(buffer_font_size.into()),
 314                ..Default::default()
 315            }),
 316            ..Default::default()
 317        },
 318        inline_code: TextStyleRefinement {
 319            font_family: Some(theme_settings.buffer_font.family.clone()),
 320            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 321            font_features: Some(theme_settings.buffer_font.features.clone()),
 322            font_size: Some(TextSize::XSmall.rems(cx).into()),
 323            ..Default::default()
 324        },
 325        heading: StyleRefinement {
 326            text: Some(TextStyleRefinement {
 327                font_size: Some(ui_font_size.into()),
 328                ..Default::default()
 329            }),
 330            ..Default::default()
 331        },
 332        ..Default::default()
 333    }
 334}
 335
 336const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 337
 338fn render_markdown_code_block(
 339    message_id: MessageId,
 340    ix: usize,
 341    kind: &CodeBlockKind,
 342    parsed_markdown: &ParsedMarkdown,
 343    metadata: CodeBlockMetadata,
 344    active_thread: Entity<ActiveThread>,
 345    workspace: WeakEntity<Workspace>,
 346    _window: &Window,
 347    cx: &App,
 348) -> Div {
 349    let label_size = rems(0.8125);
 350
 351    let label = match kind {
 352        CodeBlockKind::Indented => None,
 353        CodeBlockKind::Fenced => Some(
 354            h_flex()
 355                .px_1()
 356                .gap_1()
 357                .child(
 358                    Icon::new(IconName::Code)
 359                        .color(Color::Muted)
 360                        .size(IconSize::XSmall),
 361                )
 362                .child(div().text_size(label_size).child("Plain Text"))
 363                .into_any_element(),
 364        ),
 365        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 366            parsed_markdown.languages_by_name.get(raw_language_name),
 367            raw_language_name.clone(),
 368            cx,
 369        )),
 370        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 371            // We tell the model to use /dev/null for the path instead of using ```language
 372            // because otherwise it consistently fails to use code citations.
 373            if path_range.path.starts_with("/dev/null") {
 374                let ext = path_range
 375                    .path
 376                    .extension()
 377                    .and_then(OsStr::to_str)
 378                    .map(|str| SharedString::new(str.to_string()))
 379                    .unwrap_or_default();
 380
 381                render_code_language(
 382                    parsed_markdown
 383                        .languages_by_path
 384                        .get(&path_range.path)
 385                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 386                    ext,
 387                    cx,
 388                )
 389            } else {
 390                let content = if let Some(parent) = path_range.path.parent() {
 391                    let file_name = file_name.to_string_lossy().to_string();
 392                    let path = parent.to_string_lossy().to_string();
 393                    let path_and_file = format!("{}/{}", path, file_name);
 394
 395                    h_flex()
 396                        .id(("code-block-header-label", ix))
 397                        .ml_1()
 398                        .gap_1()
 399                        .child(div().text_size(label_size).child(file_name))
 400                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 401                        .tooltip(move |window, cx| {
 402                            Tooltip::with_meta(
 403                                "Jump to File",
 404                                None,
 405                                path_and_file.clone(),
 406                                window,
 407                                cx,
 408                            )
 409                        })
 410                        .into_any_element()
 411                } else {
 412                    div()
 413                        .ml_1()
 414                        .text_size(label_size)
 415                        .child(path_range.path.to_string_lossy().to_string())
 416                        .into_any_element()
 417                };
 418
 419                h_flex()
 420                    .id(("code-block-header-button", ix))
 421                    .w_full()
 422                    .max_w_full()
 423                    .px_1()
 424                    .gap_0p5()
 425                    .cursor_pointer()
 426                    .rounded_sm()
 427                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 428                    .child(
 429                        h_flex()
 430                            .gap_0p5()
 431                            .children(
 432                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 433                                    .map(Icon::from_path)
 434                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 435                            )
 436                            .child(content)
 437                            .child(
 438                                Icon::new(IconName::ArrowUpRight)
 439                                    .size(IconSize::XSmall)
 440                                    .color(Color::Ignored),
 441                            ),
 442                    )
 443                    .on_click({
 444                        let path_range = path_range.clone();
 445                        move |_, window, cx| {
 446                            workspace
 447                                .update(cx, |workspace, cx| {
 448                                    open_path(&path_range, window, workspace, cx)
 449                                })
 450                                .ok();
 451                        }
 452                    })
 453                    .into_any_element()
 454            }
 455        }),
 456    };
 457
 458    let codeblock_was_copied = active_thread
 459        .read(cx)
 460        .copied_code_block_ids
 461        .contains(&(message_id, ix));
 462
 463    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 464
 465    let codeblock_header_bg = cx
 466        .theme()
 467        .colors()
 468        .element_background
 469        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 470
 471    let control_buttons = h_flex()
 472        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 473        .absolute()
 474        .top_0()
 475        .right_0()
 476        .h_full()
 477        .bg(codeblock_header_bg)
 478        .rounded_tr_md()
 479        .px_1()
 480        .gap_1()
 481        .child(
 482            IconButton::new(
 483                ("copy-markdown-code", ix),
 484                if codeblock_was_copied {
 485                    IconName::Check
 486                } else {
 487                    IconName::Copy
 488                },
 489            )
 490            .icon_color(Color::Muted)
 491            .shape(ui::IconButtonShape::Square)
 492            .tooltip(Tooltip::text("Copy Code"))
 493            .on_click({
 494                let active_thread = active_thread.clone();
 495                let parsed_markdown = parsed_markdown.clone();
 496                let code_block_range = metadata.content_range.clone();
 497                move |_event, _window, cx| {
 498                    active_thread.update(cx, |this, cx| {
 499                        this.copied_code_block_ids.insert((message_id, ix));
 500
 501                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 502                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 503
 504                        cx.spawn(async move |this, cx| {
 505                            cx.background_executor().timer(Duration::from_secs(2)).await;
 506
 507                            cx.update(|cx| {
 508                                this.update(cx, |this, cx| {
 509                                    this.copied_code_block_ids.remove(&(message_id, ix));
 510                                    cx.notify();
 511                                })
 512                            })
 513                            .ok();
 514                        })
 515                        .detach();
 516                    });
 517                }
 518            }),
 519        )
 520        .child(
 521            IconButton::new(
 522                ("expand-collapse-code", ix),
 523                if is_expanded {
 524                    IconName::ChevronUp
 525                } else {
 526                    IconName::ChevronDown
 527                },
 528            )
 529            .icon_color(Color::Muted)
 530            .shape(ui::IconButtonShape::Square)
 531            .tooltip(Tooltip::text(if is_expanded {
 532                "Collapse Code"
 533            } else {
 534                "Expand Code"
 535            }))
 536            .on_click({
 537                let active_thread = active_thread.clone();
 538                move |_event, _window, cx| {
 539                    active_thread.update(cx, |this, cx| {
 540                        this.toggle_codeblock_expanded(message_id, ix);
 541                        cx.notify();
 542                    });
 543                }
 544            }),
 545        );
 546
 547    let codeblock_header = h_flex()
 548        .relative()
 549        .p_1()
 550        .gap_1()
 551        .justify_between()
 552        .bg(codeblock_header_bg)
 553        .map(|this| {
 554            if !is_expanded {
 555                this.rounded_md()
 556            } else {
 557                this.rounded_t_md()
 558                    .border_b_1()
 559                    .border_color(cx.theme().colors().border.opacity(0.6))
 560            }
 561        })
 562        .children(label)
 563        .child(control_buttons);
 564
 565    v_flex()
 566        .group(CODEBLOCK_CONTAINER_GROUP)
 567        .my_2()
 568        .overflow_hidden()
 569        .rounded_md()
 570        .border_1()
 571        .border_color(cx.theme().colors().border.opacity(0.6))
 572        .bg(cx.theme().colors().editor_background)
 573        .child(codeblock_header)
 574        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 575}
 576
 577fn open_path(
 578    path_range: &PathWithRange,
 579    window: &mut Window,
 580    workspace: &mut Workspace,
 581    cx: &mut Context<'_, Workspace>,
 582) {
 583    let Some(project_path) = workspace
 584        .project()
 585        .read(cx)
 586        .find_project_path(&path_range.path, cx)
 587    else {
 588        return; // TODO instead of just bailing out, open that path in a buffer.
 589    };
 590
 591    let Some(target) = path_range.range.as_ref().map(|range| {
 592        Point::new(
 593            // Line number is 1-based
 594            range.start.line.saturating_sub(1),
 595            range.start.col.unwrap_or(0),
 596        )
 597    }) else {
 598        return;
 599    };
 600    let open_task = workspace.open_path(project_path, None, true, window, cx);
 601    window
 602        .spawn(cx, async move |cx| {
 603            let item = open_task.await?;
 604            if let Some(active_editor) = item.downcast::<Editor>() {
 605                active_editor
 606                    .update_in(cx, |editor, window, cx| {
 607                        editor.go_to_singleton_buffer_point(target, window, cx);
 608                    })
 609                    .ok();
 610            }
 611            anyhow::Ok(())
 612        })
 613        .detach_and_log_err(cx);
 614}
 615
 616fn render_code_language(
 617    language: Option<&Arc<Language>>,
 618    name_fallback: SharedString,
 619    cx: &App,
 620) -> AnyElement {
 621    let icon_path = language.and_then(|language| {
 622        language
 623            .config()
 624            .matcher
 625            .path_suffixes
 626            .iter()
 627            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 628            .map(Icon::from_path)
 629    });
 630
 631    let language_label = language
 632        .map(|language| language.name().into())
 633        .unwrap_or(name_fallback);
 634
 635    let label_size = rems(0.8125);
 636
 637    h_flex()
 638        .px_1()
 639        .gap_1p5()
 640        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 641        .child(div().text_size(label_size).child(language_label))
 642        .into_any_element()
 643}
 644
 645fn open_markdown_link(
 646    text: SharedString,
 647    workspace: WeakEntity<Workspace>,
 648    window: &mut Window,
 649    cx: &mut App,
 650) {
 651    let Some(workspace) = workspace.upgrade() else {
 652        cx.open_url(&text);
 653        return;
 654    };
 655
 656    match MentionLink::try_parse(&text, &workspace, cx) {
 657        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 658            if entry.is_dir() {
 659                workspace.project().update(cx, |_, cx| {
 660                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 661                })
 662            } else {
 663                workspace
 664                    .open_path(path, None, true, window, cx)
 665                    .detach_and_log_err(cx);
 666            }
 667        }),
 668        Some(MentionLink::Symbol(path, symbol_name)) => {
 669            let open_task = workspace.update(cx, |workspace, cx| {
 670                workspace.open_path(path, None, true, window, cx)
 671            });
 672            window
 673                .spawn(cx, async move |cx| {
 674                    let active_editor = open_task
 675                        .await?
 676                        .downcast::<Editor>()
 677                        .context("Item is not an editor")?;
 678                    active_editor.update_in(cx, |editor, window, cx| {
 679                        let symbol_range = editor
 680                            .buffer()
 681                            .read(cx)
 682                            .snapshot(cx)
 683                            .outline(None)
 684                            .and_then(|outline| {
 685                                outline
 686                                    .find_most_similar(&symbol_name)
 687                                    .map(|(_, item)| item.range.clone())
 688                            })
 689                            .context("Could not find matching symbol")?;
 690
 691                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 692                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 693                        });
 694                        anyhow::Ok(())
 695                    })
 696                })
 697                .detach_and_log_err(cx);
 698        }
 699        Some(MentionLink::Selection(path, line_range)) => {
 700            let open_task = workspace.update(cx, |workspace, cx| {
 701                workspace.open_path(path, None, true, window, cx)
 702            });
 703            window
 704                .spawn(cx, async move |cx| {
 705                    let active_editor = open_task
 706                        .await?
 707                        .downcast::<Editor>()
 708                        .context("Item is not an editor")?;
 709                    active_editor.update_in(cx, |editor, window, cx| {
 710                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 711                            s.select_ranges([Point::new(line_range.start as u32, 0)
 712                                ..Point::new(line_range.start as u32, 0)])
 713                        });
 714                        anyhow::Ok(())
 715                    })
 716                })
 717                .detach_and_log_err(cx);
 718        }
 719        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 720            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 721                panel.update(cx, |panel, cx| {
 722                    panel
 723                        .open_thread_by_id(&thread_id, window, cx)
 724                        .detach_and_log_err(cx)
 725                });
 726            }
 727        }),
 728        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 729            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 730                panel.update(cx, |panel, cx| {
 731                    panel
 732                        .open_saved_prompt_editor(path, window, cx)
 733                        .detach_and_log_err(cx);
 734                });
 735            }
 736        }),
 737        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 738        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 739            Box::new(OpenRulesLibrary {
 740                prompt_to_select: Some(prompt_id.0),
 741            }),
 742            cx,
 743        ),
 744        None => cx.open_url(&text),
 745    }
 746}
 747
 748struct EditingMessageState {
 749    editor: Entity<Editor>,
 750    context_strip: Entity<ContextStrip>,
 751    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 752    last_estimated_token_count: Option<usize>,
 753    _subscriptions: [Subscription; 2],
 754    _update_token_count_task: Option<Task<()>>,
 755}
 756
 757impl ActiveThread {
 758    pub fn new(
 759        thread: Entity<Thread>,
 760        thread_store: Entity<ThreadStore>,
 761        text_thread_store: Entity<TextThreadStore>,
 762        context_store: Entity<ContextStore>,
 763        language_registry: Arc<LanguageRegistry>,
 764        workspace: WeakEntity<Workspace>,
 765        window: &mut Window,
 766        cx: &mut Context<Self>,
 767    ) -> Self {
 768        let subscriptions = vec![
 769            cx.observe(&thread, |_, _, cx| cx.notify()),
 770            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 771            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 772            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 773        ];
 774
 775        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 776            let this = cx.entity().downgrade();
 777            move |ix, window: &mut Window, cx: &mut App| {
 778                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 779                    .unwrap()
 780            }
 781        });
 782        let mut this = Self {
 783            language_registry,
 784            thread_store,
 785            text_thread_store,
 786            context_store,
 787            thread: thread.clone(),
 788            workspace,
 789            save_thread_task: None,
 790            messages: Vec::new(),
 791            rendered_messages_by_id: HashMap::default(),
 792            rendered_tool_uses: HashMap::default(),
 793            expanded_tool_uses: HashMap::default(),
 794            expanded_thinking_segments: HashMap::default(),
 795            expanded_code_blocks: HashMap::default(),
 796            list_state: list_state.clone(),
 797            scrollbar_state: ScrollbarState::new(list_state),
 798            show_scrollbar: false,
 799            hide_scrollbar_task: None,
 800            editing_message: None,
 801            last_error: None,
 802            copied_code_block_ids: HashSet::default(),
 803            notifications: Vec::new(),
 804            _subscriptions: subscriptions,
 805            notification_subscriptions: HashMap::default(),
 806            open_feedback_editors: HashMap::default(),
 807            _load_edited_message_context_task: None,
 808        };
 809
 810        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 811            this.push_message(&message.id, &message.segments, window, cx);
 812
 813            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 814                this.render_tool_use_markdown(
 815                    tool_use.id.clone(),
 816                    tool_use.ui_text.clone(),
 817                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 818                    tool_use.status.text(),
 819                    cx,
 820                );
 821            }
 822        }
 823
 824        this
 825    }
 826
 827    pub fn thread(&self) -> &Entity<Thread> {
 828        &self.thread
 829    }
 830
 831    pub fn is_empty(&self) -> bool {
 832        self.messages.is_empty()
 833    }
 834
 835    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 836        self.thread.read(cx).summary()
 837    }
 838
 839    pub fn regenerate_summary(&self, cx: &mut App) {
 840        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 841    }
 842
 843    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 844        self.last_error.take();
 845        self.thread.update(cx, |thread, cx| {
 846            thread.cancel_last_completion(Some(window.window_handle()), cx)
 847        })
 848    }
 849
 850    pub fn last_error(&self) -> Option<ThreadError> {
 851        self.last_error.clone()
 852    }
 853
 854    pub fn clear_last_error(&mut self) {
 855        self.last_error.take();
 856    }
 857
 858    /// Returns the editing message id and the estimated token count in the content
 859    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 860        self.editing_message
 861            .as_ref()
 862            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 863    }
 864
 865    pub fn context_store(&self) -> &Entity<ContextStore> {
 866        &self.context_store
 867    }
 868
 869    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 870        &self.thread_store
 871    }
 872
 873    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 874        &self.text_thread_store
 875    }
 876
 877    fn push_message(
 878        &mut self,
 879        id: &MessageId,
 880        segments: &[MessageSegment],
 881        _window: &mut Window,
 882        cx: &mut Context<Self>,
 883    ) {
 884        let old_len = self.messages.len();
 885        self.messages.push(*id);
 886        self.list_state.splice(old_len..old_len, 1);
 887
 888        let rendered_message =
 889            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 890        self.rendered_messages_by_id.insert(*id, rendered_message);
 891    }
 892
 893    fn edited_message(
 894        &mut self,
 895        id: &MessageId,
 896        segments: &[MessageSegment],
 897        _window: &mut Window,
 898        cx: &mut Context<Self>,
 899    ) {
 900        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 901            return;
 902        };
 903        self.list_state.splice(index..index + 1, 1);
 904        let rendered_message =
 905            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 906        self.rendered_messages_by_id.insert(*id, rendered_message);
 907    }
 908
 909    fn deleted_message(&mut self, id: &MessageId) {
 910        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 911            return;
 912        };
 913        self.messages.remove(index);
 914        self.list_state.splice(index..index + 1, 0);
 915        self.rendered_messages_by_id.remove(id);
 916    }
 917
 918    fn render_tool_use_markdown(
 919        &mut self,
 920        tool_use_id: LanguageModelToolUseId,
 921        tool_label: impl Into<SharedString>,
 922        tool_input: &str,
 923        tool_output: SharedString,
 924        cx: &mut Context<Self>,
 925    ) {
 926        let rendered = self
 927            .rendered_tool_uses
 928            .entry(tool_use_id.clone())
 929            .or_insert_with(|| RenderedToolUse {
 930                label: cx.new(|cx| {
 931                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 932                }),
 933                input: cx.new(|cx| {
 934                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 935                }),
 936                output: cx.new(|cx| {
 937                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 938                }),
 939            });
 940
 941        rendered.label.update(cx, |this, cx| {
 942            this.replace(tool_label, cx);
 943        });
 944        rendered.input.update(cx, |this, cx| {
 945            this.replace(
 946                MarkdownCodeBlock {
 947                    tag: "json",
 948                    text: tool_input,
 949                }
 950                .to_string(),
 951                cx,
 952            );
 953        });
 954        rendered.output.update(cx, |this, cx| {
 955            this.replace(tool_output, cx);
 956        });
 957    }
 958
 959    fn handle_thread_event(
 960        &mut self,
 961        _thread: &Entity<Thread>,
 962        event: &ThreadEvent,
 963        window: &mut Window,
 964        cx: &mut Context<Self>,
 965    ) {
 966        match event {
 967            ThreadEvent::CancelEditing => {
 968                if self.editing_message.is_some() {
 969                    self.cancel_editing_message(&menu::Cancel, window, cx);
 970                }
 971            }
 972            ThreadEvent::ShowError(error) => {
 973                self.last_error = Some(error.clone());
 974            }
 975            ThreadEvent::NewRequest => {
 976                cx.notify();
 977            }
 978            ThreadEvent::CompletionCanceled => {
 979                self.thread.update(cx, |thread, cx| {
 980                    thread.project().update(cx, |project, cx| {
 981                        project.set_agent_location(None, cx);
 982                    })
 983                });
 984                self.workspace
 985                    .update(cx, |workspace, cx| {
 986                        if workspace.is_being_followed(CollaboratorId::Agent) {
 987                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 988                        }
 989                    })
 990                    .ok();
 991                cx.notify();
 992            }
 993            ThreadEvent::StreamedCompletion
 994            | ThreadEvent::SummaryGenerated
 995            | ThreadEvent::SummaryChanged => {
 996                self.save_thread(cx);
 997            }
 998            ThreadEvent::Stopped(reason) => match reason {
 999                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
1000                    let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
1001                    self.play_notification_sound(cx);
1002                    self.show_notification(
1003                        if used_tools {
1004                            "Finished running tools"
1005                        } else {
1006                            "New message"
1007                        },
1008                        IconName::ZedAssistant,
1009                        window,
1010                        cx,
1011                    );
1012                }
1013                _ => {}
1014            },
1015            ThreadEvent::ToolConfirmationNeeded => {
1016                self.play_notification_sound(cx);
1017                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
1018            }
1019            ThreadEvent::StreamedAssistantText(message_id, text) => {
1020                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1021                    rendered_message.append_text(text, cx);
1022                }
1023            }
1024            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1025                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1026                    rendered_message.append_thinking(text, cx);
1027                }
1028            }
1029            ThreadEvent::MessageAdded(message_id) => {
1030                if let Some(message_segments) = self
1031                    .thread
1032                    .read(cx)
1033                    .message(*message_id)
1034                    .map(|message| message.segments.clone())
1035                {
1036                    self.push_message(message_id, &message_segments, window, cx);
1037                }
1038
1039                self.save_thread(cx);
1040                cx.notify();
1041            }
1042            ThreadEvent::MessageEdited(message_id) => {
1043                if let Some(message_segments) = self
1044                    .thread
1045                    .read(cx)
1046                    .message(*message_id)
1047                    .map(|message| message.segments.clone())
1048                {
1049                    self.edited_message(message_id, &message_segments, window, cx);
1050                }
1051
1052                self.scroll_to_bottom(cx);
1053                self.save_thread(cx);
1054                cx.notify();
1055            }
1056            ThreadEvent::MessageDeleted(message_id) => {
1057                self.deleted_message(message_id);
1058                self.save_thread(cx);
1059                cx.notify();
1060            }
1061            ThreadEvent::UsePendingTools { tool_uses } => {
1062                for tool_use in tool_uses {
1063                    self.render_tool_use_markdown(
1064                        tool_use.id.clone(),
1065                        tool_use.ui_text.clone(),
1066                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1067                        "".into(),
1068                        cx,
1069                    );
1070                }
1071            }
1072            ThreadEvent::StreamedToolUse {
1073                tool_use_id,
1074                ui_text,
1075                input,
1076            } => {
1077                self.render_tool_use_markdown(
1078                    tool_use_id.clone(),
1079                    ui_text.clone(),
1080                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1081                    "".into(),
1082                    cx,
1083                );
1084            }
1085            ThreadEvent::ToolFinished {
1086                pending_tool_use, ..
1087            } => {
1088                if let Some(tool_use) = pending_tool_use {
1089                    self.render_tool_use_markdown(
1090                        tool_use.id.clone(),
1091                        tool_use.ui_text.clone(),
1092                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1093                        self.thread
1094                            .read(cx)
1095                            .output_for_tool(&tool_use.id)
1096                            .map(|output| output.clone().into())
1097                            .unwrap_or("".into()),
1098                        cx,
1099                    );
1100                }
1101            }
1102            ThreadEvent::CheckpointChanged => cx.notify(),
1103            ThreadEvent::ReceivedTextChunk => {}
1104            ThreadEvent::InvalidToolInput {
1105                tool_use_id,
1106                ui_text,
1107                invalid_input_json,
1108            } => {
1109                self.render_tool_use_markdown(
1110                    tool_use_id.clone(),
1111                    ui_text,
1112                    invalid_input_json,
1113                    self.thread
1114                        .read(cx)
1115                        .output_for_tool(tool_use_id)
1116                        .map(|output| output.clone().into())
1117                        .unwrap_or("".into()),
1118                    cx,
1119                );
1120            }
1121            ThreadEvent::MissingToolUse {
1122                tool_use_id,
1123                ui_text,
1124            } => {
1125                self.render_tool_use_markdown(
1126                    tool_use_id.clone(),
1127                    ui_text,
1128                    "",
1129                    self.thread
1130                        .read(cx)
1131                        .output_for_tool(tool_use_id)
1132                        .map(|output| output.clone().into())
1133                        .unwrap_or("".into()),
1134                    cx,
1135                );
1136            }
1137        }
1138    }
1139
1140    fn handle_rules_loading_error(
1141        &mut self,
1142        _thread_store: Entity<ThreadStore>,
1143        error: &RulesLoadingError,
1144        cx: &mut Context<Self>,
1145    ) {
1146        self.last_error = Some(ThreadError::Message {
1147            header: "Error loading rules file".into(),
1148            message: error.message.clone(),
1149        });
1150        cx.notify();
1151    }
1152
1153    fn play_notification_sound(&self, cx: &mut App) {
1154        let settings = AgentSettings::get_global(cx);
1155        if settings.play_sound_when_agent_done {
1156            Audio::play_sound(Sound::AgentDone, cx);
1157        }
1158    }
1159
1160    fn show_notification(
1161        &mut self,
1162        caption: impl Into<SharedString>,
1163        icon: IconName,
1164        window: &mut Window,
1165        cx: &mut Context<ActiveThread>,
1166    ) {
1167        if window.is_window_active() || !self.notifications.is_empty() {
1168            return;
1169        }
1170
1171        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1172
1173        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1174            NotifyWhenAgentWaiting::PrimaryScreen => {
1175                if let Some(primary) = cx.primary_display() {
1176                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1177                }
1178            }
1179            NotifyWhenAgentWaiting::AllScreens => {
1180                let caption = caption.into();
1181                for screen in cx.displays() {
1182                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1183                }
1184            }
1185            NotifyWhenAgentWaiting::Never => {
1186                // Don't show anything
1187            }
1188        }
1189    }
1190
1191    fn pop_up(
1192        &mut self,
1193        icon: IconName,
1194        caption: SharedString,
1195        title: SharedString,
1196        window: &mut Window,
1197        screen: Rc<dyn PlatformDisplay>,
1198        cx: &mut Context<'_, ActiveThread>,
1199    ) {
1200        let options = AgentNotification::window_options(screen, cx);
1201
1202        let project_name = self.workspace.upgrade().and_then(|workspace| {
1203            workspace
1204                .read(cx)
1205                .project()
1206                .read(cx)
1207                .visible_worktrees(cx)
1208                .next()
1209                .map(|worktree| worktree.read(cx).root_name().to_string())
1210        });
1211
1212        if let Some(screen_window) = cx
1213            .open_window(options, |_, cx| {
1214                cx.new(|_| {
1215                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1216                })
1217            })
1218            .log_err()
1219        {
1220            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1221                self.notification_subscriptions
1222                    .entry(screen_window)
1223                    .or_insert_with(Vec::new)
1224                    .push(cx.subscribe_in(&pop_up, window, {
1225                        |this, _, event, window, cx| match event {
1226                            AgentNotificationEvent::Accepted => {
1227                                let handle = window.window_handle();
1228                                cx.activate(true);
1229
1230                                let workspace_handle = this.workspace.clone();
1231
1232                                // If there are multiple Zed windows, activate the correct one.
1233                                cx.defer(move |cx| {
1234                                    handle
1235                                        .update(cx, |_view, window, _cx| {
1236                                            window.activate_window();
1237
1238                                            if let Some(workspace) = workspace_handle.upgrade() {
1239                                                workspace.update(_cx, |workspace, cx| {
1240                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1241                                                });
1242                                            }
1243                                        })
1244                                        .log_err();
1245                                });
1246
1247                                this.dismiss_notifications(cx);
1248                            }
1249                            AgentNotificationEvent::Dismissed => {
1250                                this.dismiss_notifications(cx);
1251                            }
1252                        }
1253                    }));
1254
1255                self.notifications.push(screen_window);
1256
1257                // If the user manually refocuses the original window, dismiss the popup.
1258                self.notification_subscriptions
1259                    .entry(screen_window)
1260                    .or_insert_with(Vec::new)
1261                    .push({
1262                        let pop_up_weak = pop_up.downgrade();
1263
1264                        cx.observe_window_activation(window, move |_, window, cx| {
1265                            if window.is_window_active() {
1266                                if let Some(pop_up) = pop_up_weak.upgrade() {
1267                                    pop_up.update(cx, |_, cx| {
1268                                        cx.emit(AgentNotificationEvent::Dismissed);
1269                                    });
1270                                }
1271                            }
1272                        })
1273                    });
1274            }
1275        }
1276    }
1277
1278    /// Spawns a task to save the active thread.
1279    ///
1280    /// Only one task to save the thread will be in flight at a time.
1281    fn save_thread(&mut self, cx: &mut Context<Self>) {
1282        let thread = self.thread.clone();
1283        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1284            let task = this
1285                .update(cx, |this, cx| {
1286                    this.thread_store
1287                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1288                })
1289                .ok();
1290
1291            if let Some(task) = task {
1292                task.await.log_err();
1293            }
1294        }));
1295    }
1296
1297    fn start_editing_message(
1298        &mut self,
1299        message_id: MessageId,
1300        message_segments: &[MessageSegment],
1301        message_creases: &[MessageCrease],
1302        window: &mut Window,
1303        cx: &mut Context<Self>,
1304    ) {
1305        // User message should always consist of a single text segment,
1306        // therefore we can skip returning early if it's not a text segment.
1307        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1308            return;
1309        };
1310
1311        let editor = crate::message_editor::create_editor(
1312            self.workspace.clone(),
1313            self.context_store.downgrade(),
1314            self.thread_store.downgrade(),
1315            self.text_thread_store.downgrade(),
1316            window,
1317            cx,
1318        );
1319        editor.update(cx, |editor, cx| {
1320            editor.set_text(message_text.clone(), window, cx);
1321            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1322            editor.focus_handle(cx).focus(window);
1323            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1324        });
1325        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1326            EditorEvent::BufferEdited => {
1327                this.update_editing_message_token_count(true, cx);
1328            }
1329            _ => {}
1330        });
1331
1332        let context_picker_menu_handle = PopoverMenuHandle::default();
1333        let context_strip = cx.new(|cx| {
1334            ContextStrip::new(
1335                self.context_store.clone(),
1336                self.workspace.clone(),
1337                Some(self.thread_store.downgrade()),
1338                Some(self.text_thread_store.downgrade()),
1339                context_picker_menu_handle.clone(),
1340                SuggestContextKind::File,
1341                window,
1342                cx,
1343            )
1344        });
1345
1346        let context_strip_subscription =
1347            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1348
1349        self.editing_message = Some((
1350            message_id,
1351            EditingMessageState {
1352                editor: editor.clone(),
1353                context_strip,
1354                context_picker_menu_handle,
1355                last_estimated_token_count: None,
1356                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1357                _update_token_count_task: None,
1358            },
1359        ));
1360        self.update_editing_message_token_count(false, cx);
1361        cx.notify();
1362    }
1363
1364    fn handle_context_strip_event(
1365        &mut self,
1366        _context_strip: &Entity<ContextStrip>,
1367        event: &ContextStripEvent,
1368        window: &mut Window,
1369        cx: &mut Context<Self>,
1370    ) {
1371        if let Some((_, state)) = self.editing_message.as_ref() {
1372            match event {
1373                ContextStripEvent::PickerDismissed
1374                | ContextStripEvent::BlurredEmpty
1375                | ContextStripEvent::BlurredDown => {
1376                    let editor_focus_handle = state.editor.focus_handle(cx);
1377                    window.focus(&editor_focus_handle);
1378                }
1379                ContextStripEvent::BlurredUp => {}
1380            }
1381        }
1382    }
1383
1384    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1385        let Some((message_id, state)) = self.editing_message.as_mut() else {
1386            return;
1387        };
1388
1389        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1390        state._update_token_count_task.take();
1391
1392        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1393            state.last_estimated_token_count.take();
1394            return;
1395        };
1396
1397        let editor = state.editor.clone();
1398        let thread = self.thread.clone();
1399        let message_id = *message_id;
1400
1401        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1402            if debounce {
1403                cx.background_executor()
1404                    .timer(Duration::from_millis(200))
1405                    .await;
1406            }
1407
1408            let token_count = if let Some(task) = cx
1409                .update(|cx| {
1410                    let Some(message) = thread.read(cx).message(message_id) else {
1411                        log::error!("Message that was being edited no longer exists");
1412                        return None;
1413                    };
1414                    let message_text = editor.read(cx).text(cx);
1415
1416                    if message_text.is_empty() && message.loaded_context.is_empty() {
1417                        return None;
1418                    }
1419
1420                    let mut request_message = LanguageModelRequestMessage {
1421                        role: language_model::Role::User,
1422                        content: Vec::new(),
1423                        cache: false,
1424                    };
1425
1426                    message
1427                        .loaded_context
1428                        .add_to_request_message(&mut request_message);
1429
1430                    if !message_text.is_empty() {
1431                        request_message
1432                            .content
1433                            .push(MessageContent::Text(message_text));
1434                    }
1435
1436                    let request = language_model::LanguageModelRequest {
1437                        thread_id: None,
1438                        prompt_id: None,
1439                        mode: None,
1440                        messages: vec![request_message],
1441                        tools: vec![],
1442                        tool_choice: None,
1443                        stop: vec![],
1444                        temperature: AgentSettings::temperature_for_model(
1445                            &configured_model.model,
1446                            cx,
1447                        ),
1448                    };
1449
1450                    Some(configured_model.model.count_tokens(request, cx))
1451                })
1452                .ok()
1453                .flatten()
1454            {
1455                task.await.log_err()
1456            } else {
1457                Some(0)
1458            };
1459
1460            if let Some(token_count) = token_count {
1461                this.update(cx, |this, cx| {
1462                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1463                        return;
1464                    };
1465
1466                    state.last_estimated_token_count = Some(token_count);
1467                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1468                })
1469                .ok();
1470            };
1471        }));
1472    }
1473
1474    fn toggle_context_picker(
1475        &mut self,
1476        _: &crate::ToggleContextPicker,
1477        window: &mut Window,
1478        cx: &mut Context<Self>,
1479    ) {
1480        if let Some((_, state)) = self.editing_message.as_mut() {
1481            let handle = state.context_picker_menu_handle.clone();
1482            window.defer(cx, move |window, cx| {
1483                handle.toggle(window, cx);
1484            });
1485        }
1486    }
1487
1488    fn remove_all_context(
1489        &mut self,
1490        _: &crate::RemoveAllContext,
1491        _window: &mut Window,
1492        cx: &mut Context<Self>,
1493    ) {
1494        self.context_store.update(cx, |store, cx| store.clear(cx));
1495        cx.notify();
1496    }
1497
1498    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1499        if let Some((_, state)) = self.editing_message.as_mut() {
1500            if state.context_picker_menu_handle.is_deployed() {
1501                cx.propagate();
1502            } else {
1503                state.context_strip.focus_handle(cx).focus(window);
1504            }
1505        }
1506    }
1507
1508    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1509        let images = cx
1510            .read_from_clipboard()
1511            .map(|item| {
1512                item.into_entries()
1513                    .filter_map(|entry| {
1514                        if let ClipboardEntry::Image(image) = entry {
1515                            Some(image)
1516                        } else {
1517                            None
1518                        }
1519                    })
1520                    .collect::<Vec<_>>()
1521            })
1522            .unwrap_or_default();
1523
1524        if images.is_empty() {
1525            return;
1526        }
1527        cx.stop_propagation();
1528
1529        self.context_store.update(cx, |store, cx| {
1530            for image in images {
1531                store.add_image_instance(Arc::new(image), cx);
1532            }
1533        });
1534    }
1535
1536    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1537        self.editing_message.take();
1538        cx.notify();
1539    }
1540
1541    fn confirm_editing_message(
1542        &mut self,
1543        _: &menu::Confirm,
1544        window: &mut Window,
1545        cx: &mut Context<Self>,
1546    ) {
1547        let Some((message_id, state)) = self.editing_message.take() else {
1548            return;
1549        };
1550
1551        let Some(model) = self
1552            .thread
1553            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1554        else {
1555            return;
1556        };
1557
1558        if model.provider.must_accept_terms(cx) {
1559            cx.notify();
1560            return;
1561        }
1562
1563        let edited_text = state.editor.read(cx).text(cx);
1564
1565        let new_context = self
1566            .context_store
1567            .read(cx)
1568            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1569
1570        let project = self.thread.read(cx).project().clone();
1571        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1572
1573        let git_store = project.read(cx).git_store().clone();
1574        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1575
1576        let load_context_task =
1577            crate::context::load_context(new_context, &project, &prompt_store, cx);
1578        self._load_edited_message_context_task =
1579            Some(cx.spawn_in(window, async move |this, cx| {
1580                let (context, checkpoint) =
1581                    futures::future::join(load_context_task, checkpoint).await;
1582                let _ = this
1583                    .update_in(cx, |this, window, cx| {
1584                        this.thread.update(cx, |thread, cx| {
1585                            thread.edit_message(
1586                                message_id,
1587                                Role::User,
1588                                vec![MessageSegment::Text(edited_text)],
1589                                Some(context.loaded_context),
1590                                checkpoint.ok(),
1591                                cx,
1592                            );
1593                            for message_id in this.messages_after(message_id) {
1594                                thread.delete_message(*message_id, cx);
1595                            }
1596                        });
1597
1598                        this.thread.update(cx, |thread, cx| {
1599                            thread.advance_prompt_id();
1600                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1601                        });
1602                        this._load_edited_message_context_task = None;
1603                        cx.notify();
1604                    })
1605                    .log_err();
1606            }));
1607    }
1608
1609    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1610        self.messages
1611            .iter()
1612            .position(|id| *id == message_id)
1613            .map(|index| &self.messages[index + 1..])
1614            .unwrap_or(&[])
1615    }
1616
1617    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1618        self.cancel_editing_message(&menu::Cancel, window, cx);
1619    }
1620
1621    fn handle_regenerate_click(
1622        &mut self,
1623        _: &ClickEvent,
1624        window: &mut Window,
1625        cx: &mut Context<Self>,
1626    ) {
1627        self.confirm_editing_message(&menu::Confirm, window, cx);
1628    }
1629
1630    fn handle_feedback_click(
1631        &mut self,
1632        message_id: MessageId,
1633        feedback: ThreadFeedback,
1634        window: &mut Window,
1635        cx: &mut Context<Self>,
1636    ) {
1637        let report = self.thread.update(cx, |thread, cx| {
1638            thread.report_message_feedback(message_id, feedback, cx)
1639        });
1640
1641        cx.spawn(async move |this, cx| {
1642            report.await?;
1643            this.update(cx, |_this, cx| cx.notify())
1644        })
1645        .detach_and_log_err(cx);
1646
1647        match feedback {
1648            ThreadFeedback::Positive => {
1649                self.open_feedback_editors.remove(&message_id);
1650            }
1651            ThreadFeedback::Negative => {
1652                self.handle_show_feedback_comments(message_id, window, cx);
1653            }
1654        }
1655    }
1656
1657    fn handle_show_feedback_comments(
1658        &mut self,
1659        message_id: MessageId,
1660        window: &mut Window,
1661        cx: &mut Context<Self>,
1662    ) {
1663        let buffer = cx.new(|cx| {
1664            let empty_string = String::new();
1665            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1666        });
1667
1668        let editor = cx.new(|cx| {
1669            let mut editor = Editor::new(
1670                editor::EditorMode::AutoHeight { max_lines: 4 },
1671                buffer,
1672                None,
1673                window,
1674                cx,
1675            );
1676            editor.set_placeholder_text(
1677                "What went wrong? Share your feedback so we can improve.",
1678                cx,
1679            );
1680            editor
1681        });
1682
1683        editor.read(cx).focus_handle(cx).focus(window);
1684        self.open_feedback_editors.insert(message_id, editor);
1685        cx.notify();
1686    }
1687
1688    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1689        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1690            return;
1691        };
1692
1693        let report_task = self.thread.update(cx, |thread, cx| {
1694            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1695        });
1696
1697        let comments = editor.read(cx).text(cx);
1698        if !comments.is_empty() {
1699            let thread_id = self.thread.read(cx).id().clone();
1700            let comments_value = String::from(comments.as_str());
1701
1702            let message_content = self
1703                .thread
1704                .read(cx)
1705                .message(message_id)
1706                .map(|msg| msg.to_string())
1707                .unwrap_or_default();
1708
1709            telemetry::event!(
1710                "Assistant Thread Feedback Comments",
1711                thread_id,
1712                message_id = message_id.0,
1713                message_content,
1714                comments = comments_value
1715            );
1716
1717            self.open_feedback_editors.remove(&message_id);
1718
1719            cx.spawn(async move |this, cx| {
1720                report_task.await?;
1721                this.update(cx, |_this, cx| cx.notify())
1722            })
1723            .detach_and_log_err(cx);
1724        }
1725    }
1726
1727    fn render_edit_message_editor(
1728        &self,
1729        state: &EditingMessageState,
1730        _window: &mut Window,
1731        cx: &Context<Self>,
1732    ) -> impl IntoElement {
1733        let settings = ThemeSettings::get_global(cx);
1734        let font_size = TextSize::Small
1735            .rems(cx)
1736            .to_pixels(settings.agent_font_size(cx));
1737        let line_height = font_size * 1.75;
1738
1739        let colors = cx.theme().colors();
1740
1741        let text_style = TextStyle {
1742            color: colors.text,
1743            font_family: settings.buffer_font.family.clone(),
1744            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1745            font_features: settings.buffer_font.features.clone(),
1746            font_size: font_size.into(),
1747            line_height: line_height.into(),
1748            ..Default::default()
1749        };
1750
1751        v_flex()
1752            .key_context("EditMessageEditor")
1753            .on_action(cx.listener(Self::toggle_context_picker))
1754            .on_action(cx.listener(Self::remove_all_context))
1755            .on_action(cx.listener(Self::move_up))
1756            .on_action(cx.listener(Self::cancel_editing_message))
1757            .on_action(cx.listener(Self::confirm_editing_message))
1758            .capture_action(cx.listener(Self::paste))
1759            .min_h_6()
1760            .w_full()
1761            .flex_grow()
1762            .gap_2()
1763            .child(state.context_strip.clone())
1764            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1765                &state.editor,
1766                EditorStyle {
1767                    background: colors.editor_background,
1768                    local_player: cx.theme().players().local(),
1769                    text: text_style,
1770                    syntax: cx.theme().syntax().clone(),
1771                    ..Default::default()
1772                },
1773            )))
1774    }
1775
1776    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1777        let message_id = self.messages[ix];
1778        let Some(message) = self.thread.read(cx).message(message_id) else {
1779            return Empty.into_any();
1780        };
1781
1782        if message.is_hidden {
1783            return Empty.into_any();
1784        }
1785
1786        let message_creases = message.creases.clone();
1787
1788        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1789            return Empty.into_any();
1790        };
1791
1792        let workspace = self.workspace.clone();
1793        let thread = self.thread.read(cx);
1794
1795        // Get all the data we need from thread before we start using it in closures
1796        let checkpoint = thread.checkpoint_for_message(message_id);
1797        let added_context = thread
1798            .context_for_message(message_id)
1799            .map(|context| AddedContext::new_attached(context, cx))
1800            .collect::<Vec<_>>();
1801
1802        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1803        let has_tool_uses = !tool_uses.is_empty();
1804        let is_generating = thread.is_generating();
1805        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1806
1807        let is_first_message = ix == 0;
1808        let is_last_message = ix == self.messages.len() - 1;
1809
1810        let loading_dots = (is_generating_stale && is_last_message)
1811            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1812
1813        let editing_message_state = self
1814            .editing_message
1815            .as_ref()
1816            .filter(|(id, _)| *id == message_id)
1817            .map(|(_, state)| state);
1818
1819        let colors = cx.theme().colors();
1820        let editor_bg_color = colors.editor_background;
1821
1822        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1823            .icon_size(IconSize::XSmall)
1824            .icon_color(Color::Ignored)
1825            .tooltip(Tooltip::text("Open Thread as Markdown"))
1826            .on_click({
1827                let thread = self.thread.clone();
1828                let workspace = self.workspace.clone();
1829                move |_, window, cx| {
1830                    if let Some(workspace) = workspace.upgrade() {
1831                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1832                            .detach_and_log_err(cx);
1833                    }
1834                }
1835            });
1836
1837        // For all items that should be aligned with the LLM's response.
1838        const RESPONSE_PADDING_X: Pixels = px(19.);
1839
1840        let show_feedback = thread.is_turn_end(ix);
1841
1842        let feedback_container = h_flex()
1843            .group("feedback_container")
1844            .mt_1()
1845            .py_2()
1846            .px(RESPONSE_PADDING_X)
1847            .mr_1()
1848            .opacity(0.4)
1849            .hover(|style| style.opacity(1.))
1850            .gap_1p5()
1851            .flex_wrap()
1852            .justify_end();
1853        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1854            Some(feedback) => feedback_container
1855                .child(
1856                    div().visible_on_hover("feedback_container").child(
1857                        Label::new(match feedback {
1858                            ThreadFeedback::Positive => "Thanks for your feedback!",
1859                            ThreadFeedback::Negative => {
1860                                "We appreciate your feedback and will use it to improve."
1861                            }
1862                        })
1863                    .color(Color::Muted)
1864                    .size(LabelSize::XSmall)
1865                    .truncate())
1866                )
1867                .child(
1868                    h_flex()
1869                        .child(
1870                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1871                                .icon_size(IconSize::XSmall)
1872                                .icon_color(match feedback {
1873                                    ThreadFeedback::Positive => Color::Accent,
1874                                    ThreadFeedback::Negative => Color::Ignored,
1875                                })
1876                                .tooltip(Tooltip::text("Helpful Response"))
1877                                .on_click(cx.listener(move |this, _, window, cx| {
1878                                    this.handle_feedback_click(
1879                                        message_id,
1880                                        ThreadFeedback::Positive,
1881                                        window,
1882                                        cx,
1883                                    );
1884                                })),
1885                        )
1886                        .child(
1887                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1888                                .icon_size(IconSize::XSmall)
1889                                .icon_color(match feedback {
1890                                    ThreadFeedback::Positive => Color::Ignored,
1891                                    ThreadFeedback::Negative => Color::Accent,
1892                                })
1893                                .tooltip(Tooltip::text("Not Helpful"))
1894                                .on_click(cx.listener(move |this, _, window, cx| {
1895                                    this.handle_feedback_click(
1896                                        message_id,
1897                                        ThreadFeedback::Negative,
1898                                        window,
1899                                        cx,
1900                                    );
1901                                })),
1902                        )
1903                        .child(open_as_markdown),
1904                )
1905                .into_any_element(),
1906            None if AgentSettings::get_global(cx).enable_feedback =>
1907                feedback_container
1908                .child(
1909                    div().visible_on_hover("feedback_container").child(
1910                        Label::new(
1911                            "Rating the thread sends all of your current conversation to the Zed team.",
1912                        )
1913                        .color(Color::Muted)
1914                    .size(LabelSize::XSmall)
1915                    .truncate())
1916                )
1917                .child(
1918                    h_flex()
1919                        .child(
1920                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1921                                .icon_size(IconSize::XSmall)
1922                                .icon_color(Color::Ignored)
1923                                .tooltip(Tooltip::text("Helpful Response"))
1924                                .on_click(cx.listener(move |this, _, window, cx| {
1925                                    this.handle_feedback_click(
1926                                        message_id,
1927                                        ThreadFeedback::Positive,
1928                                        window,
1929                                        cx,
1930                                    );
1931                                })),
1932                        )
1933                        .child(
1934                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1935                                .icon_size(IconSize::XSmall)
1936                                .icon_color(Color::Ignored)
1937                                .tooltip(Tooltip::text("Not Helpful"))
1938                                .on_click(cx.listener(move |this, _, window, cx| {
1939                                    this.handle_feedback_click(
1940                                        message_id,
1941                                        ThreadFeedback::Negative,
1942                                        window,
1943                                        cx,
1944                                    );
1945                                })),
1946                        )
1947                        .child(open_as_markdown),
1948                )
1949                .into_any_element(),
1950            None => feedback_container
1951                .child(h_flex().child(open_as_markdown))
1952                .into_any_element(),
1953        };
1954
1955        let message_is_empty = message.should_display_content();
1956        let has_content = !message_is_empty || !added_context.is_empty();
1957
1958        let message_content = has_content.then(|| {
1959            if let Some(state) = editing_message_state.as_ref() {
1960                self.render_edit_message_editor(state, window, cx)
1961                    .into_any_element()
1962            } else {
1963                v_flex()
1964                    .w_full()
1965                    .gap_1()
1966                    .when(!added_context.is_empty(), |parent| {
1967                        parent.child(h_flex().flex_wrap().gap_1().children(
1968                            added_context.into_iter().map(|added_context| {
1969                                let context = added_context.handle.clone();
1970                                ContextPill::added(added_context, false, false, None).on_click(
1971                                    Rc::new(cx.listener({
1972                                        let workspace = workspace.clone();
1973                                        move |_, _, window, cx| {
1974                                            if let Some(workspace) = workspace.upgrade() {
1975                                                open_context(&context, workspace, window, cx);
1976                                                cx.notify();
1977                                            }
1978                                        }
1979                                    })),
1980                                )
1981                            }),
1982                        ))
1983                    })
1984                    .when(!message_is_empty, |parent| {
1985                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1986                            message_id,
1987                            rendered_message,
1988                            has_tool_uses,
1989                            workspace.clone(),
1990                            window,
1991                            cx,
1992                        )))
1993                    })
1994                    .into_any_element()
1995            }
1996        });
1997
1998        let styled_message = match message.role {
1999            Role::User => v_flex()
2000                .id(("message-container", ix))
2001                .pt_2()
2002                .pl_2()
2003                .pr_2p5()
2004                .pb_4()
2005                .child(
2006                    v_flex()
2007                        .id(("user-message", ix))
2008                        .bg(editor_bg_color)
2009                        .rounded_lg()
2010                        .shadow_md()
2011                        .border_1()
2012                        .border_color(colors.border)
2013                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2014                        .child(
2015                            v_flex()
2016                                .p_2p5()
2017                                .gap_1()
2018                                .children(message_content)
2019                                .when_some(editing_message_state, |this, state| {
2020                                    let focus_handle = state.editor.focus_handle(cx).clone();
2021
2022                                    this.child(
2023                                        h_flex()
2024                                            .w_full()
2025                                            .gap_1()
2026                                            .justify_between()
2027                                            .flex_wrap()
2028                                            .child(
2029                                                h_flex()
2030                                                    .gap_1p5()
2031                                                    .child(
2032                                                        div()
2033                                                            .opacity(0.8)
2034                                                            .child(
2035                                                                Icon::new(IconName::Warning)
2036                                                                    .size(IconSize::Indicator)
2037                                                                    .color(Color::Warning)
2038                                                            ),
2039                                                    )
2040                                                    .child(
2041                                                        Label::new("Editing will restart the thread from this point.")
2042                                                            .color(Color::Muted)
2043                                                            .size(LabelSize::XSmall),
2044                                                    ),
2045                                            )
2046                                            .child(
2047                                                h_flex()
2048                                                    .gap_0p5()
2049                                                    .child(
2050                                                        IconButton::new(
2051                                                            "cancel-edit-message",
2052                                                            IconName::Close,
2053                                                        )
2054                                                        .shape(ui::IconButtonShape::Square)
2055                                                        .icon_color(Color::Error)
2056                                                        .icon_size(IconSize::Small)
2057                                                        .tooltip({
2058                                                            let focus_handle = focus_handle.clone();
2059                                                            move |window, cx| {
2060                                                                Tooltip::for_action_in(
2061                                                                    "Cancel Edit",
2062                                                                    &menu::Cancel,
2063                                                                    &focus_handle,
2064                                                                    window,
2065                                                                    cx,
2066                                                                )
2067                                                            }
2068                                                        })
2069                                                        .on_click(cx.listener(Self::handle_cancel_click)),
2070                                                    )
2071                                                    .child(
2072                                                        IconButton::new(
2073                                                            "confirm-edit-message",
2074                                                            IconName::Return,
2075                                                        )
2076                                                        .disabled(state.editor.read(cx).is_empty(cx))
2077                                                        .shape(ui::IconButtonShape::Square)
2078                                                        .icon_color(Color::Muted)
2079                                                        .icon_size(IconSize::Small)
2080                                                        .tooltip({
2081                                                            let focus_handle = focus_handle.clone();
2082                                                            move |window, cx| {
2083                                                                Tooltip::for_action_in(
2084                                                                    "Regenerate",
2085                                                                    &menu::Confirm,
2086                                                                    &focus_handle,
2087                                                                    window,
2088                                                                    cx,
2089                                                                )
2090                                                            }
2091                                                        })
2092                                                        .on_click(
2093                                                            cx.listener(Self::handle_regenerate_click),
2094                                                        ),
2095                                                    ),
2096                                            )
2097                                    )
2098                                }),
2099                        )
2100                        .on_click(cx.listener({
2101                            let message_segments = message.segments.clone();
2102                            move |this, _, window, cx| {
2103                                this.start_editing_message(
2104                                    message_id,
2105                                    &message_segments,
2106                                    &message_creases,
2107                                    window,
2108                                    cx,
2109                                );
2110                            }
2111                        })),
2112                ),
2113            Role::Assistant => v_flex()
2114                .id(("message-container", ix))
2115                .px(RESPONSE_PADDING_X)
2116                .gap_2()
2117                .children(message_content)
2118                .when(has_tool_uses, |parent| {
2119                    parent.children(tool_uses.into_iter().map(|tool_use| {
2120                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2121                    }))
2122                }),
2123            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2124                v_flex()
2125                    .bg(colors.editor_background)
2126                    .rounded_sm()
2127                    .child(div().p_4().children(message_content)),
2128            ),
2129        };
2130
2131        let after_editing_message = self
2132            .editing_message
2133            .as_ref()
2134            .map_or(false, |(editing_message_id, _)| {
2135                message_id > *editing_message_id
2136            });
2137
2138        let panel_background = cx.theme().colors().panel_background;
2139
2140        let backdrop = div()
2141            .id("backdrop")
2142            .stop_mouse_events_except_scroll()
2143            .absolute()
2144            .inset_0()
2145            .size_full()
2146            .bg(panel_background)
2147            .opacity(0.8)
2148            .on_click(cx.listener(Self::handle_cancel_click));
2149
2150        v_flex()
2151            .w_full()
2152            .map(|parent| {
2153                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2154                    let mut is_pending = false;
2155                    let mut error = None;
2156                    if let Some(last_restore_checkpoint) =
2157                        self.thread.read(cx).last_restore_checkpoint()
2158                    {
2159                        if last_restore_checkpoint.message_id() == message_id {
2160                            match last_restore_checkpoint {
2161                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2162                                LastRestoreCheckpoint::Error { error: err, .. } => {
2163                                    error = Some(err.clone());
2164                                }
2165                            }
2166                        }
2167                    }
2168
2169                    let restore_checkpoint_button =
2170                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2171                            .icon(if error.is_some() {
2172                                IconName::XCircle
2173                            } else {
2174                                IconName::Undo
2175                            })
2176                            .icon_size(IconSize::XSmall)
2177                            .icon_position(IconPosition::Start)
2178                            .icon_color(if error.is_some() {
2179                                Some(Color::Error)
2180                            } else {
2181                                None
2182                            })
2183                            .label_size(LabelSize::XSmall)
2184                            .disabled(is_pending)
2185                            .on_click(cx.listener(move |this, _, _window, cx| {
2186                                this.thread.update(cx, |thread, cx| {
2187                                    thread
2188                                        .restore_checkpoint(checkpoint.clone(), cx)
2189                                        .detach_and_log_err(cx);
2190                                });
2191                            }));
2192
2193                    let restore_checkpoint_button = if is_pending {
2194                        restore_checkpoint_button
2195                            .with_animation(
2196                                ("pulsating-restore-checkpoint-button", ix),
2197                                Animation::new(Duration::from_secs(2))
2198                                    .repeat()
2199                                    .with_easing(pulsating_between(0.6, 1.)),
2200                                |label, delta| label.alpha(delta),
2201                            )
2202                            .into_any_element()
2203                    } else if let Some(error) = error {
2204                        restore_checkpoint_button
2205                            .tooltip(Tooltip::text(error.to_string()))
2206                            .into_any_element()
2207                    } else {
2208                        restore_checkpoint_button.into_any_element()
2209                    };
2210
2211                    parent.child(
2212                        h_flex()
2213                            .pt_2p5()
2214                            .px_2p5()
2215                            .w_full()
2216                            .gap_1()
2217                            .child(ui::Divider::horizontal())
2218                            .child(restore_checkpoint_button)
2219                            .child(ui::Divider::horizontal()),
2220                    )
2221                } else {
2222                    parent
2223                }
2224            })
2225            .when(is_first_message, |parent| {
2226                parent.child(self.render_rules_item(cx))
2227            })
2228            .child(styled_message)
2229            .when(is_generating && is_last_message, |this| {
2230                this.child(
2231                    h_flex()
2232                        .h_8()
2233                        .mt_2()
2234                        .mb_4()
2235                        .ml_4()
2236                        .py_1p5()
2237                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2238                )
2239            })
2240            .when(show_feedback, move |parent| {
2241                parent.child(feedback_items).when_some(
2242                    self.open_feedback_editors.get(&message_id),
2243                    move |parent, feedback_editor| {
2244                        let focus_handle = feedback_editor.focus_handle(cx);
2245                        parent.child(
2246                            v_flex()
2247                                .key_context("AgentFeedbackMessageEditor")
2248                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2249                                    this.open_feedback_editors.remove(&message_id);
2250                                    cx.notify();
2251                                }))
2252                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2253                                    this.submit_feedback_message(message_id, cx);
2254                                    cx.notify();
2255                                }))
2256                                .on_action(cx.listener(Self::confirm_editing_message))
2257                                .mb_2()
2258                                .mx_4()
2259                                .p_2()
2260                                .rounded_md()
2261                                .border_1()
2262                                .border_color(cx.theme().colors().border)
2263                                .bg(cx.theme().colors().editor_background)
2264                                .child(feedback_editor.clone())
2265                                .child(
2266                                    h_flex()
2267                                        .gap_1()
2268                                        .justify_end()
2269                                        .child(
2270                                            Button::new("dismiss-feedback-message", "Cancel")
2271                                                .label_size(LabelSize::Small)
2272                                                .key_binding(
2273                                                    KeyBinding::for_action_in(
2274                                                        &menu::Cancel,
2275                                                        &focus_handle,
2276                                                        window,
2277                                                        cx,
2278                                                    )
2279                                                    .map(|kb| kb.size(rems_from_px(10.))),
2280                                                )
2281                                                .on_click(cx.listener(
2282                                                    move |this, _, _window, cx| {
2283                                                        this.open_feedback_editors
2284                                                            .remove(&message_id);
2285                                                        cx.notify();
2286                                                    },
2287                                                )),
2288                                        )
2289                                        .child(
2290                                            Button::new(
2291                                                "submit-feedback-message",
2292                                                "Share Feedback",
2293                                            )
2294                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2295                                            .label_size(LabelSize::Small)
2296                                            .key_binding(
2297                                                KeyBinding::for_action_in(
2298                                                    &menu::Confirm,
2299                                                    &focus_handle,
2300                                                    window,
2301                                                    cx,
2302                                                )
2303                                                .map(|kb| kb.size(rems_from_px(10.))),
2304                                            )
2305                                            .on_click(
2306                                                cx.listener(move |this, _, _window, cx| {
2307                                                    this.submit_feedback_message(message_id, cx);
2308                                                    cx.notify()
2309                                                }),
2310                                            ),
2311                                        ),
2312                                ),
2313                        )
2314                    },
2315                )
2316            })
2317            .when(after_editing_message, |parent| {
2318                // Backdrop to dim out the whole thread below the editing user message
2319                parent.relative().child(backdrop)
2320            })
2321            .into_any()
2322    }
2323
2324    fn render_message_content(
2325        &self,
2326        message_id: MessageId,
2327        rendered_message: &RenderedMessage,
2328        has_tool_uses: bool,
2329        workspace: WeakEntity<Workspace>,
2330        window: &Window,
2331        cx: &Context<Self>,
2332    ) -> impl IntoElement {
2333        let is_last_message = self.messages.last() == Some(&message_id);
2334        let is_generating = self.thread.read(cx).is_generating();
2335        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2336            rendered_message
2337                .segments
2338                .iter()
2339                .enumerate()
2340                .next_back()
2341                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2342                .map(|(index, _)| index)
2343        } else {
2344            None
2345        };
2346
2347        let message_role = self
2348            .thread
2349            .read(cx)
2350            .message(message_id)
2351            .map(|m| m.role)
2352            .unwrap_or(Role::User);
2353
2354        let is_assistant_message = message_role == Role::Assistant;
2355        let is_user_message = message_role == Role::User;
2356
2357        v_flex()
2358            .text_ui(cx)
2359            .gap_2()
2360            .when(is_user_message, |this| this.text_xs())
2361            .children(
2362                rendered_message.segments.iter().enumerate().map(
2363                    |(index, segment)| match segment {
2364                        RenderedMessageSegment::Thinking {
2365                            content,
2366                            scroll_handle,
2367                        } => self
2368                            .render_message_thinking_segment(
2369                                message_id,
2370                                index,
2371                                content.clone(),
2372                                &scroll_handle,
2373                                Some(index) == pending_thinking_segment_index,
2374                                window,
2375                                cx,
2376                            )
2377                            .into_any_element(),
2378                        RenderedMessageSegment::Text(markdown) => {
2379                            let markdown_element = MarkdownElement::new(
2380                                markdown.clone(),
2381                                if is_user_message {
2382                                    let mut style = default_markdown_style(window, cx);
2383                                    let mut text_style = window.text_style();
2384                                    let theme_settings = ThemeSettings::get_global(cx);
2385
2386                                    let buffer_font = theme_settings.buffer_font.family.clone();
2387                                    let buffer_font_size = TextSize::Small.rems(cx);
2388
2389                                    text_style.refine(&TextStyleRefinement {
2390                                        font_family: Some(buffer_font),
2391                                        font_size: Some(buffer_font_size.into()),
2392                                        ..Default::default()
2393                                    });
2394
2395                                    style.base_text_style = text_style;
2396                                    style
2397                                } else {
2398                                    default_markdown_style(window, cx)
2399                                },
2400                            );
2401
2402                            let markdown_element = if is_assistant_message {
2403                                markdown_element.code_block_renderer(
2404                                    markdown::CodeBlockRenderer::Custom {
2405                                        render: Arc::new({
2406                                            let workspace = workspace.clone();
2407                                            let active_thread = cx.entity();
2408                                            move |kind,
2409                                                  parsed_markdown,
2410                                                  range,
2411                                                  metadata,
2412                                                  window,
2413                                                  cx| {
2414                                                render_markdown_code_block(
2415                                                    message_id,
2416                                                    range.start,
2417                                                    kind,
2418                                                    parsed_markdown,
2419                                                    metadata,
2420                                                    active_thread.clone(),
2421                                                    workspace.clone(),
2422                                                    window,
2423                                                    cx,
2424                                                )
2425                                            }
2426                                        }),
2427                                        transform: Some(Arc::new({
2428                                            let active_thread = cx.entity();
2429
2430                                            move |element, range, _, _, cx| {
2431                                                let is_expanded = active_thread
2432                                                    .read(cx)
2433                                                    .is_codeblock_expanded(message_id, range.start);
2434
2435                                                if is_expanded {
2436                                                    return element;
2437                                                }
2438
2439                                                element
2440                                            }
2441                                        })),
2442                                    },
2443                                )
2444                            } else {
2445                                markdown_element.code_block_renderer(
2446                                    markdown::CodeBlockRenderer::Default {
2447                                        copy_button: false,
2448                                        copy_button_on_hover: false,
2449                                        border: true,
2450                                    },
2451                                )
2452                            };
2453
2454                            div()
2455                                .child(markdown_element.on_url_click({
2456                                    let workspace = self.workspace.clone();
2457                                    move |text, window, cx| {
2458                                        open_markdown_link(text, workspace.clone(), window, cx);
2459                                    }
2460                                }))
2461                                .into_any_element()
2462                        }
2463                    },
2464                ),
2465            )
2466    }
2467
2468    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2469        cx.theme().colors().border.opacity(0.5)
2470    }
2471
2472    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2473        cx.theme()
2474            .colors()
2475            .element_background
2476            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2477    }
2478
2479    fn render_message_thinking_segment(
2480        &self,
2481        message_id: MessageId,
2482        ix: usize,
2483        markdown: Entity<Markdown>,
2484        scroll_handle: &ScrollHandle,
2485        pending: bool,
2486        window: &Window,
2487        cx: &Context<Self>,
2488    ) -> impl IntoElement {
2489        let is_open = self
2490            .expanded_thinking_segments
2491            .get(&(message_id, ix))
2492            .copied()
2493            .unwrap_or_default();
2494
2495        let editor_bg = cx.theme().colors().panel_background;
2496
2497        div().map(|this| {
2498            if pending {
2499                this.v_flex()
2500                    .mt_neg_2()
2501                    .mb_1p5()
2502                    .child(
2503                        h_flex()
2504                            .group("disclosure-header")
2505                            .justify_between()
2506                            .child(
2507                                h_flex()
2508                                    .gap_1p5()
2509                                    .child(
2510                                        Icon::new(IconName::LightBulb)
2511                                            .size(IconSize::XSmall)
2512                                            .color(Color::Muted),
2513                                    )
2514                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2515                            )
2516                            .child(
2517                                h_flex()
2518                                    .gap_1()
2519                                    .child(
2520                                        div().visible_on_hover("disclosure-header").child(
2521                                            Disclosure::new("thinking-disclosure", is_open)
2522                                                .opened_icon(IconName::ChevronUp)
2523                                                .closed_icon(IconName::ChevronDown)
2524                                                .on_click(cx.listener({
2525                                                    move |this, _event, _window, _cx| {
2526                                                        let is_open = this
2527                                                            .expanded_thinking_segments
2528                                                            .entry((message_id, ix))
2529                                                            .or_insert(false);
2530
2531                                                        *is_open = !*is_open;
2532                                                    }
2533                                                })),
2534                                        ),
2535                                    )
2536                                    .child({
2537                                        Icon::new(IconName::ArrowCircle)
2538                                            .color(Color::Accent)
2539                                            .size(IconSize::Small)
2540                                            .with_animation(
2541                                                "arrow-circle",
2542                                                Animation::new(Duration::from_secs(2)).repeat(),
2543                                                |icon, delta| {
2544                                                    icon.transform(Transformation::rotate(
2545                                                        percentage(delta),
2546                                                    ))
2547                                                },
2548                                            )
2549                                    }),
2550                            ),
2551                    )
2552                    .when(!is_open, |this| {
2553                        let gradient_overlay = div()
2554                            .rounded_b_lg()
2555                            .h_full()
2556                            .absolute()
2557                            .w_full()
2558                            .bottom_0()
2559                            .left_0()
2560                            .bg(linear_gradient(
2561                                180.,
2562                                linear_color_stop(editor_bg, 1.),
2563                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2564                            ));
2565
2566                        this.child(
2567                            div()
2568                                .relative()
2569                                .bg(editor_bg)
2570                                .rounded_b_lg()
2571                                .mt_2()
2572                                .pl_4()
2573                                .child(
2574                                    div()
2575                                        .id(("thinking-content", ix))
2576                                        .max_h_20()
2577                                        .track_scroll(scroll_handle)
2578                                        .text_ui_sm(cx)
2579                                        .overflow_hidden()
2580                                        .child(
2581                                            MarkdownElement::new(
2582                                                markdown.clone(),
2583                                                default_markdown_style(window, cx),
2584                                            )
2585                                            .on_url_click({
2586                                                let workspace = self.workspace.clone();
2587                                                move |text, window, cx| {
2588                                                    open_markdown_link(
2589                                                        text,
2590                                                        workspace.clone(),
2591                                                        window,
2592                                                        cx,
2593                                                    );
2594                                                }
2595                                            }),
2596                                        ),
2597                                )
2598                                .child(gradient_overlay),
2599                        )
2600                    })
2601                    .when(is_open, |this| {
2602                        this.child(
2603                            div()
2604                                .id(("thinking-content", ix))
2605                                .h_full()
2606                                .bg(editor_bg)
2607                                .text_ui_sm(cx)
2608                                .child(
2609                                    MarkdownElement::new(
2610                                        markdown.clone(),
2611                                        default_markdown_style(window, cx),
2612                                    )
2613                                    .on_url_click({
2614                                        let workspace = self.workspace.clone();
2615                                        move |text, window, cx| {
2616                                            open_markdown_link(text, workspace.clone(), window, cx);
2617                                        }
2618                                    }),
2619                                ),
2620                        )
2621                    })
2622            } else {
2623                this.v_flex()
2624                    .mt_neg_2()
2625                    .child(
2626                        h_flex()
2627                            .group("disclosure-header")
2628                            .pr_1()
2629                            .justify_between()
2630                            .opacity(0.8)
2631                            .hover(|style| style.opacity(1.))
2632                            .child(
2633                                h_flex()
2634                                    .gap_1p5()
2635                                    .child(
2636                                        Icon::new(IconName::LightBulb)
2637                                            .size(IconSize::XSmall)
2638                                            .color(Color::Muted),
2639                                    )
2640                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2641                            )
2642                            .child(
2643                                div().visible_on_hover("disclosure-header").child(
2644                                    Disclosure::new("thinking-disclosure", is_open)
2645                                        .opened_icon(IconName::ChevronUp)
2646                                        .closed_icon(IconName::ChevronDown)
2647                                        .on_click(cx.listener({
2648                                            move |this, _event, _window, _cx| {
2649                                                let is_open = this
2650                                                    .expanded_thinking_segments
2651                                                    .entry((message_id, ix))
2652                                                    .or_insert(false);
2653
2654                                                *is_open = !*is_open;
2655                                            }
2656                                        })),
2657                                ),
2658                            ),
2659                    )
2660                    .child(
2661                        div()
2662                            .id(("thinking-content", ix))
2663                            .relative()
2664                            .mt_1p5()
2665                            .ml_1p5()
2666                            .pl_2p5()
2667                            .border_l_1()
2668                            .border_color(cx.theme().colors().border_variant)
2669                            .text_ui_sm(cx)
2670                            .when(is_open, |this| {
2671                                this.child(
2672                                    MarkdownElement::new(
2673                                        markdown.clone(),
2674                                        default_markdown_style(window, cx),
2675                                    )
2676                                    .on_url_click({
2677                                        let workspace = self.workspace.clone();
2678                                        move |text, window, cx| {
2679                                            open_markdown_link(text, workspace.clone(), window, cx);
2680                                        }
2681                                    }),
2682                                )
2683                            }),
2684                    )
2685            }
2686        })
2687    }
2688
2689    fn render_tool_use(
2690        &self,
2691        tool_use: ToolUse,
2692        window: &mut Window,
2693        workspace: WeakEntity<Workspace>,
2694        cx: &mut Context<Self>,
2695    ) -> impl IntoElement + use<> {
2696        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2697            return card.render(&tool_use.status, window, workspace, cx);
2698        }
2699
2700        let is_open = self
2701            .expanded_tool_uses
2702            .get(&tool_use.id)
2703            .copied()
2704            .unwrap_or_default();
2705
2706        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2707
2708        let fs = self
2709            .workspace
2710            .upgrade()
2711            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2712        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2713        let needs_confirmation_tools = tool_use.needs_confirmation;
2714
2715        let status_icons = div().child(match &tool_use.status {
2716            ToolUseStatus::NeedsConfirmation => {
2717                let icon = Icon::new(IconName::Warning)
2718                    .color(Color::Warning)
2719                    .size(IconSize::Small);
2720                icon.into_any_element()
2721            }
2722            ToolUseStatus::Pending
2723            | ToolUseStatus::InputStillStreaming
2724            | ToolUseStatus::Running => {
2725                let icon = Icon::new(IconName::ArrowCircle)
2726                    .color(Color::Accent)
2727                    .size(IconSize::Small);
2728                icon.with_animation(
2729                    "arrow-circle",
2730                    Animation::new(Duration::from_secs(2)).repeat(),
2731                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2732                )
2733                .into_any_element()
2734            }
2735            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2736            ToolUseStatus::Error(_) => {
2737                let icon = Icon::new(IconName::Close)
2738                    .color(Color::Error)
2739                    .size(IconSize::Small);
2740                icon.into_any_element()
2741            }
2742        });
2743
2744        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2745        let results_content_container = || v_flex().p_2().gap_0p5();
2746
2747        let results_content = v_flex()
2748            .gap_1()
2749            .child(
2750                results_content_container()
2751                    .child(
2752                        Label::new("Input")
2753                            .size(LabelSize::XSmall)
2754                            .color(Color::Muted)
2755                            .buffer_font(cx),
2756                    )
2757                    .child(
2758                        div()
2759                            .w_full()
2760                            .text_ui_sm(cx)
2761                            .children(rendered_tool_use.as_ref().map(|rendered| {
2762                                MarkdownElement::new(
2763                                    rendered.input.clone(),
2764                                    tool_use_markdown_style(window, cx),
2765                                )
2766                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2767                                    copy_button: false,
2768                                    copy_button_on_hover: false,
2769                                    border: false,
2770                                })
2771                                .on_url_click({
2772                                    let workspace = self.workspace.clone();
2773                                    move |text, window, cx| {
2774                                        open_markdown_link(text, workspace.clone(), window, cx);
2775                                    }
2776                                })
2777                            })),
2778                    ),
2779            )
2780            .map(|container| match tool_use.status {
2781                ToolUseStatus::Finished(_) => container.child(
2782                    results_content_container()
2783                        .border_t_1()
2784                        .border_color(self.tool_card_border_color(cx))
2785                        .child(
2786                            Label::new("Result")
2787                                .size(LabelSize::XSmall)
2788                                .color(Color::Muted)
2789                                .buffer_font(cx),
2790                        )
2791                        .child(div().w_full().text_ui_sm(cx).children(
2792                            rendered_tool_use.as_ref().map(|rendered| {
2793                                MarkdownElement::new(
2794                                    rendered.output.clone(),
2795                                    tool_use_markdown_style(window, cx),
2796                                )
2797                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2798                                    copy_button: false,
2799                                    copy_button_on_hover: false,
2800                                    border: false,
2801                                })
2802                                .on_url_click({
2803                                    let workspace = self.workspace.clone();
2804                                    move |text, window, cx| {
2805                                        open_markdown_link(text, workspace.clone(), window, cx);
2806                                    }
2807                                })
2808                                .into_any_element()
2809                            }),
2810                        )),
2811                ),
2812                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2813                    results_content_container()
2814                        .border_t_1()
2815                        .border_color(self.tool_card_border_color(cx))
2816                        .child(
2817                            h_flex()
2818                                .gap_1()
2819                                .child(
2820                                    Icon::new(IconName::ArrowCircle)
2821                                        .size(IconSize::Small)
2822                                        .color(Color::Accent)
2823                                        .with_animation(
2824                                            "arrow-circle",
2825                                            Animation::new(Duration::from_secs(2)).repeat(),
2826                                            |icon, delta| {
2827                                                icon.transform(Transformation::rotate(percentage(
2828                                                    delta,
2829                                                )))
2830                                            },
2831                                        ),
2832                                )
2833                                .child(
2834                                    Label::new("Running…")
2835                                        .size(LabelSize::XSmall)
2836                                        .color(Color::Muted)
2837                                        .buffer_font(cx),
2838                                ),
2839                        ),
2840                ),
2841                ToolUseStatus::Error(_) => container.child(
2842                    results_content_container()
2843                        .border_t_1()
2844                        .border_color(self.tool_card_border_color(cx))
2845                        .child(
2846                            Label::new("Error")
2847                                .size(LabelSize::XSmall)
2848                                .color(Color::Muted)
2849                                .buffer_font(cx),
2850                        )
2851                        .child(
2852                            div()
2853                                .text_ui_sm(cx)
2854                                .children(rendered_tool_use.as_ref().map(|rendered| {
2855                                    MarkdownElement::new(
2856                                        rendered.output.clone(),
2857                                        tool_use_markdown_style(window, cx),
2858                                    )
2859                                    .on_url_click({
2860                                        let workspace = self.workspace.clone();
2861                                        move |text, window, cx| {
2862                                            open_markdown_link(text, workspace.clone(), window, cx);
2863                                        }
2864                                    })
2865                                    .into_any_element()
2866                                })),
2867                        ),
2868                ),
2869                ToolUseStatus::Pending => container,
2870                ToolUseStatus::NeedsConfirmation => container.child(
2871                    results_content_container()
2872                        .border_t_1()
2873                        .border_color(self.tool_card_border_color(cx))
2874                        .child(
2875                            Label::new("Asking Permission")
2876                                .size(LabelSize::Small)
2877                                .color(Color::Muted)
2878                                .buffer_font(cx),
2879                        ),
2880                ),
2881            });
2882
2883        let gradient_overlay = |color: Hsla| {
2884            div()
2885                .h_full()
2886                .absolute()
2887                .w_12()
2888                .bottom_0()
2889                .map(|element| {
2890                    if is_status_finished {
2891                        element.right_6()
2892                    } else {
2893                        element.right(px(44.))
2894                    }
2895                })
2896                .bg(linear_gradient(
2897                    90.,
2898                    linear_color_stop(color, 1.),
2899                    linear_color_stop(color.opacity(0.2), 0.),
2900                ))
2901        };
2902
2903        v_flex().gap_1().mb_2().map(|element| {
2904            if !needs_confirmation_tools {
2905                element.child(
2906                    v_flex()
2907                        .child(
2908                            h_flex()
2909                                .group("disclosure-header")
2910                                .relative()
2911                                .gap_1p5()
2912                                .justify_between()
2913                                .opacity(0.8)
2914                                .hover(|style| style.opacity(1.))
2915                                .when(!is_status_finished, |this| this.pr_2())
2916                                .child(
2917                                    h_flex()
2918                                        .id("tool-label-container")
2919                                        .gap_1p5()
2920                                        .max_w_full()
2921                                        .overflow_x_scroll()
2922                                        .child(
2923                                            Icon::new(tool_use.icon)
2924                                                .size(IconSize::XSmall)
2925                                                .color(Color::Muted),
2926                                        )
2927                                        .child(
2928                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2929                                                rendered_tool_use.map(|rendered| MarkdownElement::new(rendered.label, tool_use_markdown_style(window, cx)).on_url_click({let workspace = self.workspace.clone(); move |text, window, cx| {
2930                                                    open_markdown_link(text, workspace.clone(), window, cx);
2931                                                }}))
2932                                            ),
2933                                        ),
2934                                )
2935                                .child(
2936                                    h_flex()
2937                                        .gap_1()
2938                                        .child(
2939                                            div().visible_on_hover("disclosure-header").child(
2940                                                Disclosure::new("tool-use-disclosure", is_open)
2941                                                    .opened_icon(IconName::ChevronUp)
2942                                                    .closed_icon(IconName::ChevronDown)
2943                                                    .on_click(cx.listener({
2944                                                        let tool_use_id = tool_use.id.clone();
2945                                                        move |this, _event, _window, _cx| {
2946                                                            let is_open = this
2947                                                                .expanded_tool_uses
2948                                                                .entry(tool_use_id.clone())
2949                                                                .or_insert(false);
2950
2951                                                            *is_open = !*is_open;
2952                                                        }
2953                                                    })),
2954                                            ),
2955                                        )
2956                                        .child(status_icons),
2957                                )
2958                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2959                        )
2960                        .map(|parent| {
2961                            if !is_open {
2962                                return parent;
2963                            }
2964
2965                            parent.child(
2966                                v_flex()
2967                                    .mt_1()
2968                                    .border_1()
2969                                    .border_color(self.tool_card_border_color(cx))
2970                                    .bg(cx.theme().colors().editor_background)
2971                                    .rounded_lg()
2972                                    .child(results_content),
2973                            )
2974                        }),
2975                )
2976            } else {
2977                v_flex()
2978                    .mb_2()
2979                    .rounded_lg()
2980                    .border_1()
2981                    .border_color(self.tool_card_border_color(cx))
2982                    .overflow_hidden()
2983                    .child(
2984                        h_flex()
2985                            .group("disclosure-header")
2986                            .relative()
2987                            .justify_between()
2988                            .py_1()
2989                            .map(|element| {
2990                                if is_status_finished {
2991                                    element.pl_2().pr_0p5()
2992                                } else {
2993                                    element.px_2()
2994                                }
2995                            })
2996                            .bg(self.tool_card_header_bg(cx))
2997                            .map(|element| {
2998                                if is_open {
2999                                    element.border_b_1().rounded_t_md()
3000                                } else if needs_confirmation {
3001                                    element.rounded_t_md()
3002                                } else {
3003                                    element.rounded_md()
3004                                }
3005                            })
3006                            .border_color(self.tool_card_border_color(cx))
3007                            .child(
3008                                h_flex()
3009                                    .id("tool-label-container")
3010                                    .gap_1p5()
3011                                    .max_w_full()
3012                                    .overflow_x_scroll()
3013                                    .child(
3014                                        Icon::new(tool_use.icon)
3015                                            .size(IconSize::XSmall)
3016                                            .color(Color::Muted),
3017                                    )
3018                                    .child(
3019                                        h_flex().pr_8().text_ui_sm(cx).children(
3020                                            rendered_tool_use.map(|rendered| MarkdownElement::new(rendered.label, tool_use_markdown_style(window, cx)).on_url_click({let workspace = self.workspace.clone(); move |text, window, cx| {
3021                                                open_markdown_link(text, workspace.clone(), window, cx);
3022                                            }}))
3023                                        ),
3024                                    ),
3025                            )
3026                            .child(
3027                                h_flex()
3028                                    .gap_1()
3029                                    .child(
3030                                        div().visible_on_hover("disclosure-header").child(
3031                                            Disclosure::new("tool-use-disclosure", is_open)
3032                                                .opened_icon(IconName::ChevronUp)
3033                                                .closed_icon(IconName::ChevronDown)
3034                                                .on_click(cx.listener({
3035                                                    let tool_use_id = tool_use.id.clone();
3036                                                    move |this, _event, _window, _cx| {
3037                                                        let is_open = this
3038                                                            .expanded_tool_uses
3039                                                            .entry(tool_use_id.clone())
3040                                                            .or_insert(false);
3041
3042                                                        *is_open = !*is_open;
3043                                                    }
3044                                                })),
3045                                        ),
3046                                    )
3047                                    .child(status_icons),
3048                            )
3049                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3050                    )
3051                    .map(|parent| {
3052                        if !is_open {
3053                            return parent;
3054                        }
3055
3056                        parent.child(
3057                            v_flex()
3058                                .bg(cx.theme().colors().editor_background)
3059                                .map(|element| {
3060                                    if  needs_confirmation {
3061                                        element.rounded_none()
3062                                    } else {
3063                                        element.rounded_b_lg()
3064                                    }
3065                                })
3066                                .child(results_content),
3067                        )
3068                    })
3069                    .when(needs_confirmation, |this| {
3070                        this.child(
3071                            h_flex()
3072                                .py_1()
3073                                .pl_2()
3074                                .pr_1()
3075                                .gap_1()
3076                                .justify_between()
3077                                .bg(cx.theme().colors().editor_background)
3078                                .border_t_1()
3079                                .border_color(self.tool_card_border_color(cx))
3080                                .rounded_b_lg()
3081                                .child(
3082                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3083                                )
3084                                .child(
3085                                    h_flex()
3086                                        .gap_0p5()
3087                                        .child({
3088                                            let tool_id = tool_use.id.clone();
3089                                            Button::new(
3090                                                "always-allow-tool-action",
3091                                                "Always Allow",
3092                                            )
3093                                            .label_size(LabelSize::Small)
3094                                            .icon(IconName::CheckDouble)
3095                                            .icon_position(IconPosition::Start)
3096                                            .icon_size(IconSize::Small)
3097                                            .icon_color(Color::Success)
3098                                            .tooltip(move |window, cx|  {
3099                                                Tooltip::with_meta(
3100                                                    "Never ask for permission",
3101                                                    None,
3102                                                    "Restore the original behavior in your Agent Panel settings",
3103                                                    window,
3104                                                    cx,
3105                                                )
3106                                            })
3107                                            .on_click(cx.listener(
3108                                                move |this, event, window, cx| {
3109                                                    if let Some(fs) = fs.clone() {
3110                                                        update_settings_file::<AgentSettings>(
3111                                                            fs.clone(),
3112                                                            cx,
3113                                                            |settings, _| {
3114                                                                settings.set_always_allow_tool_actions(true);
3115                                                            },
3116                                                        );
3117                                                    }
3118                                                    this.handle_allow_tool(
3119                                                        tool_id.clone(),
3120                                                        event,
3121                                                        window,
3122                                                        cx,
3123                                                    )
3124                                                },
3125                                            ))
3126                                        })
3127                                        .child(ui::Divider::vertical())
3128                                        .child({
3129                                            let tool_id = tool_use.id.clone();
3130                                            Button::new("allow-tool-action", "Allow")
3131                                                .label_size(LabelSize::Small)
3132                                                .icon(IconName::Check)
3133                                                .icon_position(IconPosition::Start)
3134                                                .icon_size(IconSize::Small)
3135                                                .icon_color(Color::Success)
3136                                                .on_click(cx.listener(
3137                                                    move |this, event, window, cx| {
3138                                                        this.handle_allow_tool(
3139                                                            tool_id.clone(),
3140                                                            event,
3141                                                            window,
3142                                                            cx,
3143                                                        )
3144                                                    },
3145                                                ))
3146                                        })
3147                                        .child({
3148                                            let tool_id = tool_use.id.clone();
3149                                            let tool_name: Arc<str> = tool_use.name.into();
3150                                            Button::new("deny-tool", "Deny")
3151                                                .label_size(LabelSize::Small)
3152                                                .icon(IconName::Close)
3153                                                .icon_position(IconPosition::Start)
3154                                                .icon_size(IconSize::Small)
3155                                                .icon_color(Color::Error)
3156                                                .on_click(cx.listener(
3157                                                    move |this, event, window, cx| {
3158                                                        this.handle_deny_tool(
3159                                                            tool_id.clone(),
3160                                                            tool_name.clone(),
3161                                                            event,
3162                                                            window,
3163                                                            cx,
3164                                                        )
3165                                                    },
3166                                                ))
3167                                        }),
3168                                ),
3169                        )
3170                    })
3171            }
3172        }).into_any_element()
3173    }
3174
3175    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3176        let project_context = self.thread.read(cx).project_context();
3177        let project_context = project_context.borrow();
3178        let Some(project_context) = project_context.as_ref() else {
3179            return div().into_any();
3180        };
3181
3182        let user_rules_text = if project_context.user_rules.is_empty() {
3183            None
3184        } else if project_context.user_rules.len() == 1 {
3185            let user_rules = &project_context.user_rules[0];
3186
3187            match user_rules.title.as_ref() {
3188                Some(title) => Some(format!("Using \"{title}\" user rule")),
3189                None => Some("Using user rule".into()),
3190            }
3191        } else {
3192            Some(format!(
3193                "Using {} user rules",
3194                project_context.user_rules.len()
3195            ))
3196        };
3197
3198        let first_user_rules_id = project_context
3199            .user_rules
3200            .first()
3201            .map(|user_rules| user_rules.uuid.0);
3202
3203        let rules_files = project_context
3204            .worktrees
3205            .iter()
3206            .filter_map(|worktree| worktree.rules_file.as_ref())
3207            .collect::<Vec<_>>();
3208
3209        let rules_file_text = match rules_files.as_slice() {
3210            &[] => None,
3211            &[rules_file] => Some(format!(
3212                "Using project {:?} file",
3213                rules_file.path_in_worktree
3214            )),
3215            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3216        };
3217
3218        if user_rules_text.is_none() && rules_file_text.is_none() {
3219            return div().into_any();
3220        }
3221
3222        v_flex()
3223            .pt_2()
3224            .px_2p5()
3225            .gap_1()
3226            .when_some(user_rules_text, |parent, user_rules_text| {
3227                parent.child(
3228                    h_flex()
3229                        .w_full()
3230                        .child(
3231                            Icon::new(RULES_ICON)
3232                                .size(IconSize::XSmall)
3233                                .color(Color::Disabled),
3234                        )
3235                        .child(
3236                            Label::new(user_rules_text)
3237                                .size(LabelSize::XSmall)
3238                                .color(Color::Muted)
3239                                .truncate()
3240                                .buffer_font(cx)
3241                                .ml_1p5()
3242                                .mr_0p5(),
3243                        )
3244                        .child(
3245                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3246                                .shape(ui::IconButtonShape::Square)
3247                                .icon_size(IconSize::XSmall)
3248                                .icon_color(Color::Ignored)
3249                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3250                                .tooltip(Tooltip::text("View User Rules"))
3251                                .on_click(move |_event, window, cx| {
3252                                    window.dispatch_action(
3253                                        Box::new(OpenRulesLibrary {
3254                                            prompt_to_select: first_user_rules_id,
3255                                        }),
3256                                        cx,
3257                                    )
3258                                }),
3259                        ),
3260                )
3261            })
3262            .when_some(rules_file_text, |parent, rules_file_text| {
3263                parent.child(
3264                    h_flex()
3265                        .w_full()
3266                        .child(
3267                            Icon::new(IconName::File)
3268                                .size(IconSize::XSmall)
3269                                .color(Color::Disabled),
3270                        )
3271                        .child(
3272                            Label::new(rules_file_text)
3273                                .size(LabelSize::XSmall)
3274                                .color(Color::Muted)
3275                                .buffer_font(cx)
3276                                .ml_1p5()
3277                                .mr_0p5(),
3278                        )
3279                        .child(
3280                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3281                                .shape(ui::IconButtonShape::Square)
3282                                .icon_size(IconSize::XSmall)
3283                                .icon_color(Color::Ignored)
3284                                .on_click(cx.listener(Self::handle_open_rules))
3285                                .tooltip(Tooltip::text("View Rules")),
3286                        ),
3287                )
3288            })
3289            .into_any()
3290    }
3291
3292    fn handle_allow_tool(
3293        &mut self,
3294        tool_use_id: LanguageModelToolUseId,
3295        _: &ClickEvent,
3296        window: &mut Window,
3297        cx: &mut Context<Self>,
3298    ) {
3299        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3300            .thread
3301            .read(cx)
3302            .pending_tool(&tool_use_id)
3303            .map(|tool_use| tool_use.status.clone())
3304        {
3305            self.thread.update(cx, |thread, cx| {
3306                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3307                    thread.run_tool(
3308                        c.tool_use_id.clone(),
3309                        c.ui_text.clone(),
3310                        c.input.clone(),
3311                        c.request.clone(),
3312                        c.tool.clone(),
3313                        configured.model,
3314                        Some(window.window_handle()),
3315                        cx,
3316                    );
3317                }
3318            });
3319        }
3320    }
3321
3322    fn handle_deny_tool(
3323        &mut self,
3324        tool_use_id: LanguageModelToolUseId,
3325        tool_name: Arc<str>,
3326        _: &ClickEvent,
3327        window: &mut Window,
3328        cx: &mut Context<Self>,
3329    ) {
3330        let window_handle = window.window_handle();
3331        self.thread.update(cx, |thread, cx| {
3332            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3333        });
3334    }
3335
3336    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3337        let project_context = self.thread.read(cx).project_context();
3338        let project_context = project_context.borrow();
3339        let Some(project_context) = project_context.as_ref() else {
3340            return;
3341        };
3342
3343        let project_entry_ids = project_context
3344            .worktrees
3345            .iter()
3346            .flat_map(|worktree| worktree.rules_file.as_ref())
3347            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3348            .collect::<Vec<_>>();
3349
3350        self.workspace
3351            .update(cx, move |workspace, cx| {
3352                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3353                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3354                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3355                let project = workspace.project().read(cx);
3356                let project_paths = project_entry_ids
3357                    .into_iter()
3358                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3359                    .collect::<Vec<_>>();
3360                for project_path in project_paths {
3361                    workspace
3362                        .open_path(project_path, None, true, window, cx)
3363                        .detach_and_log_err(cx);
3364                }
3365            })
3366            .ok();
3367    }
3368
3369    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3370        for window in self.notifications.drain(..) {
3371            window
3372                .update(cx, |_, window, _| {
3373                    window.remove_window();
3374                })
3375                .ok();
3376
3377            self.notification_subscriptions.remove(&window);
3378        }
3379    }
3380
3381    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3382        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3383            return None;
3384        }
3385
3386        Some(
3387            div()
3388                .occlude()
3389                .id("active-thread-scrollbar")
3390                .on_mouse_move(cx.listener(|_, _, _, cx| {
3391                    cx.notify();
3392                    cx.stop_propagation()
3393                }))
3394                .on_hover(|_, _, cx| {
3395                    cx.stop_propagation();
3396                })
3397                .on_any_mouse_down(|_, _, cx| {
3398                    cx.stop_propagation();
3399                })
3400                .on_mouse_up(
3401                    MouseButton::Left,
3402                    cx.listener(|_, _, _, cx| {
3403                        cx.stop_propagation();
3404                    }),
3405                )
3406                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3407                    cx.notify();
3408                }))
3409                .h_full()
3410                .absolute()
3411                .right_1()
3412                .top_1()
3413                .bottom_0()
3414                .w(px(12.))
3415                .cursor_default()
3416                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3417        )
3418    }
3419
3420    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3421        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3422        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3423            cx.background_executor()
3424                .timer(SCROLLBAR_SHOW_INTERVAL)
3425                .await;
3426            thread
3427                .update(cx, |thread, cx| {
3428                    if !thread.scrollbar_state.is_dragging() {
3429                        thread.show_scrollbar = false;
3430                        cx.notify();
3431                    }
3432                })
3433                .log_err();
3434        }))
3435    }
3436
3437    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3438        self.expanded_code_blocks
3439            .get(&(message_id, ix))
3440            .copied()
3441            .unwrap_or(true)
3442    }
3443
3444    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3445        let is_expanded = self
3446            .expanded_code_blocks
3447            .entry((message_id, ix))
3448            .or_insert(true);
3449        *is_expanded = !*is_expanded;
3450    }
3451
3452    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3453        self.list_state.reset(self.messages.len());
3454        cx.notify();
3455    }
3456}
3457
3458pub enum ActiveThreadEvent {
3459    EditingMessageTokenCountChanged,
3460}
3461
3462impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3463
3464impl Render for ActiveThread {
3465    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3466        v_flex()
3467            .size_full()
3468            .relative()
3469            .bg(cx.theme().colors().panel_background)
3470            .on_mouse_move(cx.listener(|this, _, _, cx| {
3471                this.show_scrollbar = true;
3472                this.hide_scrollbar_later(cx);
3473                cx.notify();
3474            }))
3475            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3476                this.show_scrollbar = true;
3477                this.hide_scrollbar_later(cx);
3478                cx.notify();
3479            }))
3480            .on_mouse_up(
3481                MouseButton::Left,
3482                cx.listener(|this, _, _, cx| {
3483                    this.hide_scrollbar_later(cx);
3484                }),
3485            )
3486            .child(list(self.list_state.clone()).flex_grow())
3487            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3488                this.child(scrollbar)
3489            })
3490    }
3491}
3492
3493pub(crate) fn open_active_thread_as_markdown(
3494    thread: Entity<Thread>,
3495    workspace: Entity<Workspace>,
3496    window: &mut Window,
3497    cx: &mut App,
3498) -> Task<anyhow::Result<()>> {
3499    let markdown_language_task = workspace
3500        .read(cx)
3501        .app_state()
3502        .languages
3503        .language_for_name("Markdown");
3504
3505    window.spawn(cx, async move |cx| {
3506        let markdown_language = markdown_language_task.await?;
3507
3508        workspace.update_in(cx, |workspace, window, cx| {
3509            let thread = thread.read(cx);
3510            let markdown = thread.to_markdown(cx)?;
3511            let thread_summary = thread.summary().or_default().to_string();
3512
3513            let project = workspace.project().clone();
3514
3515            if !project.read(cx).is_local() {
3516                anyhow::bail!("failed to open active thread as markdown in remote project");
3517            }
3518
3519            let buffer = project.update(cx, |project, cx| {
3520                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3521            });
3522            let buffer =
3523                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3524
3525            workspace.add_item_to_active_pane(
3526                Box::new(cx.new(|cx| {
3527                    let mut editor =
3528                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3529                    editor.set_breadcrumb_header(thread_summary);
3530                    editor
3531                })),
3532                None,
3533                true,
3534                window,
3535                cx,
3536            );
3537
3538            anyhow::Ok(())
3539        })??;
3540        anyhow::Ok(())
3541    })
3542}
3543
3544pub(crate) fn open_context(
3545    context: &AgentContextHandle,
3546    workspace: Entity<Workspace>,
3547    window: &mut Window,
3548    cx: &mut App,
3549) {
3550    match context {
3551        AgentContextHandle::File(file_context) => {
3552            if let Some(project_path) = file_context.project_path(cx) {
3553                workspace.update(cx, |workspace, cx| {
3554                    workspace
3555                        .open_path(project_path, None, true, window, cx)
3556                        .detach_and_log_err(cx);
3557                });
3558            }
3559        }
3560
3561        AgentContextHandle::Directory(directory_context) => {
3562            let entry_id = directory_context.entry_id;
3563            workspace.update(cx, |workspace, cx| {
3564                workspace.project().update(cx, |_project, cx| {
3565                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3566                })
3567            })
3568        }
3569
3570        AgentContextHandle::Symbol(symbol_context) => {
3571            let buffer = symbol_context.buffer.read(cx);
3572            if let Some(project_path) = buffer.project_path(cx) {
3573                let snapshot = buffer.snapshot();
3574                let target_position = symbol_context.range.start.to_point(&snapshot);
3575                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3576                    .detach();
3577            }
3578        }
3579
3580        AgentContextHandle::Selection(selection_context) => {
3581            let buffer = selection_context.buffer.read(cx);
3582            if let Some(project_path) = buffer.project_path(cx) {
3583                let snapshot = buffer.snapshot();
3584                let target_position = selection_context.range.start.to_point(&snapshot);
3585
3586                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3587                    .detach();
3588            }
3589        }
3590
3591        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3592            cx.open_url(&fetched_url_context.url);
3593        }
3594
3595        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3596            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3597                panel.update(cx, |panel, cx| {
3598                    panel.open_thread(thread_context.thread.clone(), window, cx);
3599                });
3600            }
3601        }),
3602
3603        AgentContextHandle::TextThread(text_thread_context) => {
3604            workspace.update(cx, |workspace, cx| {
3605                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3606                    panel.update(cx, |panel, cx| {
3607                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3608                    });
3609                }
3610            })
3611        }
3612
3613        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3614            Box::new(OpenRulesLibrary {
3615                prompt_to_select: Some(rules_context.prompt_id.0),
3616            }),
3617            cx,
3618        ),
3619
3620        AgentContextHandle::Image(_) => {}
3621    }
3622}
3623
3624fn open_editor_at_position(
3625    project_path: project::ProjectPath,
3626    target_position: Point,
3627    workspace: &Entity<Workspace>,
3628    window: &mut Window,
3629    cx: &mut App,
3630) -> Task<()> {
3631    let open_task = workspace.update(cx, |workspace, cx| {
3632        workspace.open_path(project_path, None, true, window, cx)
3633    });
3634    window.spawn(cx, async move |cx| {
3635        if let Some(active_editor) = open_task
3636            .await
3637            .log_err()
3638            .and_then(|item| item.downcast::<Editor>())
3639        {
3640            active_editor
3641                .downgrade()
3642                .update_in(cx, |editor, window, cx| {
3643                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3644                })
3645                .log_err();
3646        }
3647    })
3648}
3649
3650#[cfg(test)]
3651mod tests {
3652    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3653    use editor::EditorSettings;
3654    use fs::FakeFs;
3655    use gpui::{AppContext, TestAppContext, VisualTestContext};
3656    use language_model::{LanguageModel, fake_provider::FakeLanguageModel};
3657    use project::Project;
3658    use prompt_store::PromptBuilder;
3659    use serde_json::json;
3660    use settings::SettingsStore;
3661    use util::path;
3662    use workspace::CollaboratorId;
3663
3664    use crate::{ContextLoadResult, thread_store};
3665
3666    use super::*;
3667
3668    #[gpui::test]
3669    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3670        init_test_settings(cx);
3671
3672        let project = create_test_project(
3673            cx,
3674            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3675        )
3676        .await;
3677
3678        let (cx, _active_thread, workspace, thread, model) =
3679            setup_test_environment(cx, project.clone()).await;
3680
3681        // Insert user message without any context (empty context vector)
3682        thread.update(cx, |thread, cx| {
3683            thread.insert_user_message(
3684                "What is the best way to learn Rust?",
3685                ContextLoadResult::default(),
3686                None,
3687                vec![],
3688                cx,
3689            );
3690        });
3691
3692        // Stream response to user message
3693        thread.update(cx, |thread, cx| {
3694            let request = thread.to_completion_request(model.clone(), cx);
3695            thread.stream_completion(request, model, cx.active_window(), cx)
3696        });
3697        // Follow the agent
3698        cx.update(|window, cx| {
3699            workspace.update(cx, |workspace, cx| {
3700                workspace.follow(CollaboratorId::Agent, window, cx);
3701            })
3702        });
3703        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3704
3705        // Cancel the current completion
3706        thread.update(cx, |thread, cx| {
3707            thread.cancel_last_completion(cx.active_window(), cx)
3708        });
3709
3710        cx.executor().run_until_parked();
3711
3712        // No longer following the agent
3713        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3714    }
3715
3716    fn init_test_settings(cx: &mut TestAppContext) {
3717        cx.update(|cx| {
3718            let settings_store = SettingsStore::test(cx);
3719            cx.set_global(settings_store);
3720            language::init(cx);
3721            Project::init_settings(cx);
3722            AgentSettings::register(cx);
3723            prompt_store::init(cx);
3724            thread_store::init(cx);
3725            workspace::init_settings(cx);
3726            language_model::init_settings(cx);
3727            ThemeSettings::register(cx);
3728            EditorSettings::register(cx);
3729            ToolRegistry::default_global(cx);
3730        });
3731    }
3732
3733    // Helper to create a test project with test files
3734    async fn create_test_project(
3735        cx: &mut TestAppContext,
3736        files: serde_json::Value,
3737    ) -> Entity<Project> {
3738        let fs = FakeFs::new(cx.executor());
3739        fs.insert_tree(path!("/test"), files).await;
3740        Project::test(fs, [path!("/test").as_ref()], cx).await
3741    }
3742
3743    async fn setup_test_environment(
3744        cx: &mut TestAppContext,
3745        project: Entity<Project>,
3746    ) -> (
3747        &mut VisualTestContext,
3748        Entity<ActiveThread>,
3749        Entity<Workspace>,
3750        Entity<Thread>,
3751        Arc<dyn LanguageModel>,
3752    ) {
3753        let (workspace, cx) =
3754            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
3755
3756        let thread_store = cx
3757            .update(|_, cx| {
3758                ThreadStore::load(
3759                    project.clone(),
3760                    cx.new(|_| ToolWorkingSet::default()),
3761                    None,
3762                    Arc::new(PromptBuilder::new(None).unwrap()),
3763                    cx,
3764                )
3765            })
3766            .await
3767            .unwrap();
3768
3769        let text_thread_store = cx
3770            .update(|_, cx| {
3771                TextThreadStore::new(
3772                    project.clone(),
3773                    Arc::new(PromptBuilder::new(None).unwrap()),
3774                    Default::default(),
3775                    cx,
3776                )
3777            })
3778            .await
3779            .unwrap();
3780
3781        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
3782        let context_store =
3783            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
3784
3785        let model = FakeLanguageModel::default();
3786        let model: Arc<dyn LanguageModel> = Arc::new(model);
3787
3788        let language_registry = LanguageRegistry::new(cx.executor());
3789        let language_registry = Arc::new(language_registry);
3790
3791        let active_thread = cx.update(|window, cx| {
3792            cx.new(|cx| {
3793                ActiveThread::new(
3794                    thread.clone(),
3795                    thread_store.clone(),
3796                    text_thread_store,
3797                    context_store.clone(),
3798                    language_registry.clone(),
3799                    workspace.downgrade(),
3800                    window,
3801                    cx,
3802                )
3803            })
3804        });
3805
3806        (cx, active_thread, workspace, thread, model)
3807    }
3808}