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 anyhow::Context as _;
  17use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  18use assistant_tool::ToolUseStatus;
  19use collections::{HashMap, HashSet};
  20use editor::actions::{MoveUp, Paste};
  21use editor::scroll::Autoscroll;
  22use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  23use gpui::{
  24    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  25    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  26    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  27    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  28    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  29    pulsating_between,
  30};
  31use language::{Buffer, Language, LanguageRegistry};
  32use language_model::{
  33    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  34};
  35use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  36use markdown::{
  37    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  38};
  39use project::{ProjectEntryId, ProjectItem as _};
  40use rope::Point;
  41use settings::{Settings as _, SettingsStore, update_settings_file};
  42use std::ffi::OsStr;
  43use std::path::Path;
  44use std::rc::Rc;
  45use std::sync::Arc;
  46use std::time::Duration;
  47use text::ToPoint;
  48use theme::ThemeSettings;
  49use ui::{
  50    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  51    Tooltip, prelude::*,
  52};
  53use util::ResultExt as _;
  54use util::markdown::MarkdownCodeBlock;
  55use workspace::Workspace;
  56use zed_actions::assistant::OpenRulesLibrary;
  57
  58pub struct ActiveThread {
  59    context_store: Entity<ContextStore>,
  60    language_registry: Arc<LanguageRegistry>,
  61    thread_store: Entity<ThreadStore>,
  62    text_thread_store: Entity<TextThreadStore>,
  63    thread: Entity<Thread>,
  64    workspace: WeakEntity<Workspace>,
  65    save_thread_task: Option<Task<()>>,
  66    messages: Vec<MessageId>,
  67    list_state: ListState,
  68    scrollbar_state: ScrollbarState,
  69    show_scrollbar: bool,
  70    hide_scrollbar_task: Option<Task<()>>,
  71    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  72    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  73    editing_message: Option<(MessageId, EditingMessageState)>,
  74    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  75    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  76    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  77    last_error: Option<ThreadError>,
  78    notifications: Vec<WindowHandle<AgentNotification>>,
  79    copied_code_block_ids: HashSet<(MessageId, usize)>,
  80    _subscriptions: Vec<Subscription>,
  81    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  82    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  83    _load_edited_message_context_task: Option<Task<()>>,
  84}
  85
  86struct RenderedMessage {
  87    language_registry: Arc<LanguageRegistry>,
  88    segments: Vec<RenderedMessageSegment>,
  89}
  90
  91#[derive(Clone)]
  92struct RenderedToolUse {
  93    label: Entity<Markdown>,
  94    input: Entity<Markdown>,
  95    output: Entity<Markdown>,
  96}
  97
  98impl RenderedMessage {
  99    fn from_segments(
 100        segments: &[MessageSegment],
 101        language_registry: Arc<LanguageRegistry>,
 102        cx: &mut App,
 103    ) -> Self {
 104        let mut this = Self {
 105            language_registry,
 106            segments: Vec::with_capacity(segments.len()),
 107        };
 108        for segment in segments {
 109            this.push_segment(segment, cx);
 110        }
 111        this
 112    }
 113
 114    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 115        if let Some(RenderedMessageSegment::Thinking {
 116            content,
 117            scroll_handle,
 118        }) = self.segments.last_mut()
 119        {
 120            content.update(cx, |markdown, cx| {
 121                markdown.append(text, cx);
 122            });
 123            scroll_handle.scroll_to_bottom();
 124        } else {
 125            self.segments.push(RenderedMessageSegment::Thinking {
 126                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 127                scroll_handle: ScrollHandle::default(),
 128            });
 129        }
 130    }
 131
 132    fn append_text(&mut self, text: &String, cx: &mut App) {
 133        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 134            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 135        } else {
 136            self.segments
 137                .push(RenderedMessageSegment::Text(parse_markdown(
 138                    SharedString::from(text),
 139                    self.language_registry.clone(),
 140                    cx,
 141                )));
 142        }
 143    }
 144
 145    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 146        match segment {
 147            MessageSegment::Thinking { text, .. } => {
 148                self.segments.push(RenderedMessageSegment::Thinking {
 149                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 150                    scroll_handle: ScrollHandle::default(),
 151                })
 152            }
 153            MessageSegment::Text(text) => {
 154                self.segments
 155                    .push(RenderedMessageSegment::Text(parse_markdown(
 156                        text.into(),
 157                        self.language_registry.clone(),
 158                        cx,
 159                    )))
 160            }
 161            MessageSegment::RedactedThinking(_) => {}
 162        };
 163    }
 164}
 165
 166enum RenderedMessageSegment {
 167    Thinking {
 168        content: Entity<Markdown>,
 169        scroll_handle: ScrollHandle,
 170    },
 171    Text(Entity<Markdown>),
 172}
 173
 174fn parse_markdown(
 175    text: SharedString,
 176    language_registry: Arc<LanguageRegistry>,
 177    cx: &mut App,
 178) -> Entity<Markdown> {
 179    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 180}
 181
 182pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 183    let theme_settings = ThemeSettings::get_global(cx);
 184    let colors = cx.theme().colors();
 185    let ui_font_size = TextSize::Default.rems(cx);
 186    let buffer_font_size = TextSize::Small.rems(cx);
 187    let mut text_style = window.text_style();
 188    let line_height = buffer_font_size * 1.75;
 189
 190    text_style.refine(&TextStyleRefinement {
 191        font_family: Some(theme_settings.ui_font.family.clone()),
 192        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 193        font_features: Some(theme_settings.ui_font.features.clone()),
 194        font_size: Some(ui_font_size.into()),
 195        line_height: Some(line_height.into()),
 196        color: Some(cx.theme().colors().text),
 197        ..Default::default()
 198    });
 199
 200    MarkdownStyle {
 201        base_text_style: text_style.clone(),
 202        syntax: cx.theme().syntax().clone(),
 203        selection_background_color: cx.theme().players().local().selection,
 204        code_block_overflow_x_scroll: true,
 205        table_overflow_x_scroll: true,
 206        heading_level_styles: Some(HeadingLevelStyles {
 207            h1: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.15).into()),
 209                ..Default::default()
 210            }),
 211            h2: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.1).into()),
 213                ..Default::default()
 214            }),
 215            h3: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.05).into()),
 217                ..Default::default()
 218            }),
 219            h4: Some(TextStyleRefinement {
 220                font_size: Some(rems(1.).into()),
 221                ..Default::default()
 222            }),
 223            h5: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.95).into()),
 225                ..Default::default()
 226            }),
 227            h6: Some(TextStyleRefinement {
 228                font_size: Some(rems(0.875).into()),
 229                ..Default::default()
 230            }),
 231        }),
 232        code_block: StyleRefinement {
 233            padding: EdgesRefinement {
 234                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238            },
 239            background: Some(colors.editor_background.into()),
 240            text: Some(TextStyleRefinement {
 241                font_family: Some(theme_settings.buffer_font.family.clone()),
 242                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 243                font_features: Some(theme_settings.buffer_font.features.clone()),
 244                font_size: Some(buffer_font_size.into()),
 245                ..Default::default()
 246            }),
 247            ..Default::default()
 248        },
 249        inline_code: TextStyleRefinement {
 250            font_family: Some(theme_settings.buffer_font.family.clone()),
 251            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 252            font_features: Some(theme_settings.buffer_font.features.clone()),
 253            font_size: Some(buffer_font_size.into()),
 254            background_color: Some(colors.editor_foreground.opacity(0.08)),
 255            ..Default::default()
 256        },
 257        link: TextStyleRefinement {
 258            background_color: Some(colors.editor_foreground.opacity(0.025)),
 259            underline: Some(UnderlineStyle {
 260                color: Some(colors.text_accent.opacity(0.5)),
 261                thickness: px(1.),
 262                ..Default::default()
 263            }),
 264            ..Default::default()
 265        },
 266        link_callback: Some(Rc::new(move |url, cx| {
 267            if MentionLink::is_valid(url) {
 268                let colors = cx.theme().colors();
 269                Some(TextStyleRefinement {
 270                    background_color: Some(colors.element_background),
 271                    ..Default::default()
 272                })
 273            } else {
 274                None
 275            }
 276        })),
 277        ..Default::default()
 278    }
 279}
 280
 281fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 282    let theme_settings = ThemeSettings::get_global(cx);
 283    let colors = cx.theme().colors();
 284    let ui_font_size = TextSize::Default.rems(cx);
 285    let buffer_font_size = TextSize::Small.rems(cx);
 286    let mut text_style = window.text_style();
 287
 288    text_style.refine(&TextStyleRefinement {
 289        font_family: Some(theme_settings.ui_font.family.clone()),
 290        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 291        font_features: Some(theme_settings.ui_font.features.clone()),
 292        font_size: Some(ui_font_size.into()),
 293        color: Some(cx.theme().colors().text),
 294        ..Default::default()
 295    });
 296
 297    MarkdownStyle {
 298        base_text_style: text_style,
 299        syntax: cx.theme().syntax().clone(),
 300        selection_background_color: cx.theme().players().local().selection,
 301        code_block_overflow_x_scroll: true,
 302        code_block: StyleRefinement {
 303            margin: EdgesRefinement::default(),
 304            padding: EdgesRefinement::default(),
 305            background: Some(colors.editor_background.into()),
 306            border_color: None,
 307            border_widths: EdgesRefinement::default(),
 308            text: Some(TextStyleRefinement {
 309                font_family: Some(theme_settings.buffer_font.family.clone()),
 310                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 311                font_features: Some(theme_settings.buffer_font.features.clone()),
 312                font_size: Some(buffer_font_size.into()),
 313                ..Default::default()
 314            }),
 315            ..Default::default()
 316        },
 317        inline_code: TextStyleRefinement {
 318            font_family: Some(theme_settings.buffer_font.family.clone()),
 319            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 320            font_features: Some(theme_settings.buffer_font.features.clone()),
 321            font_size: Some(TextSize::XSmall.rems(cx).into()),
 322            ..Default::default()
 323        },
 324        heading: StyleRefinement {
 325            text: Some(TextStyleRefinement {
 326                font_size: Some(ui_font_size.into()),
 327                ..Default::default()
 328            }),
 329            ..Default::default()
 330        },
 331        ..Default::default()
 332    }
 333}
 334
 335const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 336const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 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 = match kind {
 350        CodeBlockKind::Indented => None,
 351        CodeBlockKind::Fenced => Some(
 352            h_flex()
 353                .gap_1()
 354                .child(
 355                    Icon::new(IconName::Code)
 356                        .color(Color::Muted)
 357                        .size(IconSize::XSmall),
 358                )
 359                .child(Label::new("untitled").size(LabelSize::Small))
 360                .into_any_element(),
 361        ),
 362        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 363            parsed_markdown.languages_by_name.get(raw_language_name),
 364            raw_language_name.clone(),
 365            cx,
 366        )),
 367        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 368            // We tell the model to use /dev/null for the path instead of using ```language
 369            // because otherwise it consistently fails to use code citations.
 370            if path_range.path.starts_with("/dev/null") {
 371                let ext = path_range
 372                    .path
 373                    .extension()
 374                    .and_then(OsStr::to_str)
 375                    .map(|str| SharedString::new(str.to_string()))
 376                    .unwrap_or_default();
 377
 378                render_code_language(
 379                    parsed_markdown
 380                        .languages_by_path
 381                        .get(&path_range.path)
 382                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 383                    ext,
 384                    cx,
 385                )
 386            } else {
 387                let content = if let Some(parent) = path_range.path.parent() {
 388                    let file_name = file_name.to_string_lossy().to_string();
 389                    let path = parent.to_string_lossy().to_string();
 390                    let path_and_file = format!("{}/{}", path, file_name);
 391
 392                    h_flex()
 393                        .id(("code-block-header-label", ix))
 394                        .ml_1()
 395                        .gap_1()
 396                        .child(Label::new(file_name).size(LabelSize::Small))
 397                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 398                        .tooltip(move |window, cx| {
 399                            Tooltip::with_meta(
 400                                "Jump to File",
 401                                None,
 402                                path_and_file.clone(),
 403                                window,
 404                                cx,
 405                            )
 406                        })
 407                        .into_any_element()
 408                } else {
 409                    Label::new(path_range.path.to_string_lossy().to_string())
 410                        .size(LabelSize::Small)
 411                        .ml_1()
 412                        .into_any_element()
 413                };
 414
 415                h_flex()
 416                    .id(("code-block-header-button", ix))
 417                    .w_full()
 418                    .max_w_full()
 419                    .px_1()
 420                    .gap_0p5()
 421                    .cursor_pointer()
 422                    .rounded_sm()
 423                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 424                    .child(
 425                        h_flex()
 426                            .gap_0p5()
 427                            .children(
 428                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 429                                    .map(Icon::from_path)
 430                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 431                            )
 432                            .child(content)
 433                            .child(
 434                                Icon::new(IconName::ArrowUpRight)
 435                                    .size(IconSize::XSmall)
 436                                    .color(Color::Ignored),
 437                            ),
 438                    )
 439                    .on_click({
 440                        let path_range = path_range.clone();
 441                        move |_, window, cx| {
 442                            workspace
 443                                .update(cx, |workspace, cx| {
 444                                    open_path(&path_range, window, workspace, cx)
 445                                })
 446                                .ok();
 447                        }
 448                    })
 449                    .into_any_element()
 450            }
 451        }),
 452    };
 453
 454    let codeblock_was_copied = active_thread
 455        .read(cx)
 456        .copied_code_block_ids
 457        .contains(&(message_id, ix));
 458
 459    let can_expand = metadata.line_count >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
 460
 461    let is_expanded = if can_expand {
 462        active_thread.read(cx).is_codeblock_expanded(message_id, ix)
 463    } else {
 464        false
 465    };
 466
 467    let codeblock_header_bg = cx
 468        .theme()
 469        .colors()
 470        .element_background
 471        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 472
 473    let control_buttons = h_flex()
 474        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 475        .absolute()
 476        .top_0()
 477        .right_0()
 478        .h_full()
 479        .bg(codeblock_header_bg)
 480        .rounded_tr_md()
 481        .px_1()
 482        .gap_1()
 483        .child(
 484            IconButton::new(
 485                ("copy-markdown-code", ix),
 486                if codeblock_was_copied {
 487                    IconName::Check
 488                } else {
 489                    IconName::Copy
 490                },
 491            )
 492            .icon_color(Color::Muted)
 493            .shape(ui::IconButtonShape::Square)
 494            .tooltip(Tooltip::text("Copy Code"))
 495            .on_click({
 496                let active_thread = active_thread.clone();
 497                let parsed_markdown = parsed_markdown.clone();
 498                let code_block_range = metadata.content_range.clone();
 499                move |_event, _window, cx| {
 500                    active_thread.update(cx, |this, cx| {
 501                        this.copied_code_block_ids.insert((message_id, ix));
 502
 503                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 504                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 505
 506                        cx.spawn(async move |this, cx| {
 507                            cx.background_executor().timer(Duration::from_secs(2)).await;
 508
 509                            cx.update(|cx| {
 510                                this.update(cx, |this, cx| {
 511                                    this.copied_code_block_ids.remove(&(message_id, ix));
 512                                    cx.notify();
 513                                })
 514                            })
 515                            .ok();
 516                        })
 517                        .detach();
 518                    });
 519                }
 520            }),
 521        )
 522        .when(can_expand, |header| {
 523            header.child(
 524                IconButton::new(
 525                    ("expand-collapse-code", ix),
 526                    if is_expanded {
 527                        IconName::ChevronUp
 528                    } else {
 529                        IconName::ChevronDown
 530                    },
 531                )
 532                .icon_color(Color::Muted)
 533                .shape(ui::IconButtonShape::Square)
 534                .tooltip(Tooltip::text(if is_expanded {
 535                    "Collapse Code"
 536                } else {
 537                    "Expand Code"
 538                }))
 539                .on_click({
 540                    let active_thread = active_thread.clone();
 541                    move |_event, _window, cx| {
 542                        active_thread.update(cx, |this, cx| {
 543                            this.toggle_codeblock_expanded(message_id, ix);
 544                            cx.notify();
 545                        });
 546                    }
 547                }),
 548            )
 549        });
 550
 551    let codeblock_header = h_flex()
 552        .relative()
 553        .p_1()
 554        .gap_1()
 555        .justify_between()
 556        .border_b_1()
 557        .border_color(cx.theme().colors().border.opacity(0.6))
 558        .bg(codeblock_header_bg)
 559        .rounded_t_md()
 560        .children(label)
 561        .child(control_buttons);
 562
 563    v_flex()
 564        .group(CODEBLOCK_CONTAINER_GROUP)
 565        .my_2()
 566        .overflow_hidden()
 567        .rounded_lg()
 568        .border_1()
 569        .border_color(cx.theme().colors().border.opacity(0.6))
 570        .bg(cx.theme().colors().editor_background)
 571        .child(codeblock_header)
 572        .when(can_expand && !is_expanded, |this| this.max_h_80())
 573}
 574
 575fn open_path(
 576    path_range: &PathWithRange,
 577    window: &mut Window,
 578    workspace: &mut Workspace,
 579    cx: &mut Context<'_, Workspace>,
 580) {
 581    let Some(project_path) = workspace
 582        .project()
 583        .read(cx)
 584        .find_project_path(&path_range.path, cx)
 585    else {
 586        return; // TODO instead of just bailing out, open that path in a buffer.
 587    };
 588
 589    let Some(target) = path_range.range.as_ref().map(|range| {
 590        Point::new(
 591            // Line number is 1-based
 592            range.start.line.saturating_sub(1),
 593            range.start.col.unwrap_or(0),
 594        )
 595    }) else {
 596        return;
 597    };
 598    let open_task = workspace.open_path(project_path, None, true, window, cx);
 599    window
 600        .spawn(cx, async move |cx| {
 601            let item = open_task.await?;
 602            if let Some(active_editor) = item.downcast::<Editor>() {
 603                active_editor
 604                    .update_in(cx, |editor, window, cx| {
 605                        editor.go_to_singleton_buffer_point(target, window, cx);
 606                    })
 607                    .ok();
 608            }
 609            anyhow::Ok(())
 610        })
 611        .detach_and_log_err(cx);
 612}
 613
 614fn render_code_language(
 615    language: Option<&Arc<Language>>,
 616    name_fallback: SharedString,
 617    cx: &App,
 618) -> AnyElement {
 619    let icon_path = language.and_then(|language| {
 620        language
 621            .config()
 622            .matcher
 623            .path_suffixes
 624            .iter()
 625            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 626            .map(Icon::from_path)
 627    });
 628
 629    let language_label = language
 630        .map(|language| language.name().into())
 631        .unwrap_or(name_fallback);
 632
 633    h_flex()
 634        .gap_1()
 635        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 636        .child(Label::new(language_label).size(LabelSize::Small))
 637        .into_any_element()
 638}
 639
 640fn open_markdown_link(
 641    text: SharedString,
 642    workspace: WeakEntity<Workspace>,
 643    window: &mut Window,
 644    cx: &mut App,
 645) {
 646    let Some(workspace) = workspace.upgrade() else {
 647        cx.open_url(&text);
 648        return;
 649    };
 650
 651    match MentionLink::try_parse(&text, &workspace, cx) {
 652        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 653            if entry.is_dir() {
 654                workspace.project().update(cx, |_, cx| {
 655                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 656                })
 657            } else {
 658                workspace
 659                    .open_path(path, None, true, window, cx)
 660                    .detach_and_log_err(cx);
 661            }
 662        }),
 663        Some(MentionLink::Symbol(path, symbol_name)) => {
 664            let open_task = workspace.update(cx, |workspace, cx| {
 665                workspace.open_path(path, None, true, window, cx)
 666            });
 667            window
 668                .spawn(cx, async move |cx| {
 669                    let active_editor = open_task
 670                        .await?
 671                        .downcast::<Editor>()
 672                        .context("Item is not an editor")?;
 673                    active_editor.update_in(cx, |editor, window, cx| {
 674                        let symbol_range = editor
 675                            .buffer()
 676                            .read(cx)
 677                            .snapshot(cx)
 678                            .outline(None)
 679                            .and_then(|outline| {
 680                                outline
 681                                    .find_most_similar(&symbol_name)
 682                                    .map(|(_, item)| item.range.clone())
 683                            })
 684                            .context("Could not find matching symbol")?;
 685
 686                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 687                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 688                        });
 689                        anyhow::Ok(())
 690                    })
 691                })
 692                .detach_and_log_err(cx);
 693        }
 694        Some(MentionLink::Selection(path, line_range)) => {
 695            let open_task = workspace.update(cx, |workspace, cx| {
 696                workspace.open_path(path, None, true, window, cx)
 697            });
 698            window
 699                .spawn(cx, async move |cx| {
 700                    let active_editor = open_task
 701                        .await?
 702                        .downcast::<Editor>()
 703                        .context("Item is not an editor")?;
 704                    active_editor.update_in(cx, |editor, window, cx| {
 705                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 706                            s.select_ranges([Point::new(line_range.start as u32, 0)
 707                                ..Point::new(line_range.start as u32, 0)])
 708                        });
 709                        anyhow::Ok(())
 710                    })
 711                })
 712                .detach_and_log_err(cx);
 713        }
 714        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 715            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 716                panel.update(cx, |panel, cx| {
 717                    panel
 718                        .open_thread_by_id(&thread_id, window, cx)
 719                        .detach_and_log_err(cx)
 720                });
 721            }
 722        }),
 723        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 724            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 725                panel.update(cx, |panel, cx| {
 726                    panel
 727                        .open_saved_prompt_editor(path, window, cx)
 728                        .detach_and_log_err(cx);
 729                });
 730            }
 731        }),
 732        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 733        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 734            Box::new(OpenRulesLibrary {
 735                prompt_to_select: Some(prompt_id.0),
 736            }),
 737            cx,
 738        ),
 739        None => cx.open_url(&text),
 740    }
 741}
 742
 743struct EditingMessageState {
 744    editor: Entity<Editor>,
 745    context_strip: Entity<ContextStrip>,
 746    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 747    last_estimated_token_count: Option<usize>,
 748    _subscriptions: [Subscription; 2],
 749    _update_token_count_task: Option<Task<()>>,
 750}
 751
 752impl ActiveThread {
 753    pub fn new(
 754        thread: Entity<Thread>,
 755        thread_store: Entity<ThreadStore>,
 756        text_thread_store: Entity<TextThreadStore>,
 757        context_store: Entity<ContextStore>,
 758        language_registry: Arc<LanguageRegistry>,
 759        workspace: WeakEntity<Workspace>,
 760        window: &mut Window,
 761        cx: &mut Context<Self>,
 762    ) -> Self {
 763        let subscriptions = vec![
 764            cx.observe(&thread, |_, _, cx| cx.notify()),
 765            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 766            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 767            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 768        ];
 769
 770        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 771            let this = cx.entity().downgrade();
 772            move |ix, window: &mut Window, cx: &mut App| {
 773                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 774                    .unwrap()
 775            }
 776        });
 777        let mut this = Self {
 778            language_registry,
 779            thread_store,
 780            text_thread_store,
 781            context_store,
 782            thread: thread.clone(),
 783            workspace,
 784            save_thread_task: None,
 785            messages: Vec::new(),
 786            rendered_messages_by_id: HashMap::default(),
 787            rendered_tool_uses: HashMap::default(),
 788            expanded_tool_uses: HashMap::default(),
 789            expanded_thinking_segments: HashMap::default(),
 790            expanded_code_blocks: HashMap::default(),
 791            list_state: list_state.clone(),
 792            scrollbar_state: ScrollbarState::new(list_state),
 793            show_scrollbar: false,
 794            hide_scrollbar_task: None,
 795            editing_message: None,
 796            last_error: None,
 797            copied_code_block_ids: HashSet::default(),
 798            notifications: Vec::new(),
 799            _subscriptions: subscriptions,
 800            notification_subscriptions: HashMap::default(),
 801            open_feedback_editors: HashMap::default(),
 802            _load_edited_message_context_task: None,
 803        };
 804
 805        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 806            this.push_message(&message.id, &message.segments, window, cx);
 807
 808            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 809                this.render_tool_use_markdown(
 810                    tool_use.id.clone(),
 811                    tool_use.ui_text.clone(),
 812                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 813                    tool_use.status.text(),
 814                    cx,
 815                );
 816            }
 817        }
 818
 819        this
 820    }
 821
 822    pub fn thread(&self) -> &Entity<Thread> {
 823        &self.thread
 824    }
 825
 826    pub fn is_empty(&self) -> bool {
 827        self.messages.is_empty()
 828    }
 829
 830    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 831        self.thread.read(cx).summary()
 832    }
 833
 834    pub fn regenerate_summary(&self, cx: &mut App) {
 835        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 836    }
 837
 838    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 839        self.last_error.take();
 840        self.thread.update(cx, |thread, cx| {
 841            thread.cancel_last_completion(Some(window.window_handle()), cx)
 842        })
 843    }
 844
 845    pub fn last_error(&self) -> Option<ThreadError> {
 846        self.last_error.clone()
 847    }
 848
 849    pub fn clear_last_error(&mut self) {
 850        self.last_error.take();
 851    }
 852
 853    /// Returns the editing message id and the estimated token count in the content
 854    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 855        self.editing_message
 856            .as_ref()
 857            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 858    }
 859
 860    pub fn context_store(&self) -> &Entity<ContextStore> {
 861        &self.context_store
 862    }
 863
 864    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 865        &self.thread_store
 866    }
 867
 868    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 869        &self.text_thread_store
 870    }
 871
 872    fn push_message(
 873        &mut self,
 874        id: &MessageId,
 875        segments: &[MessageSegment],
 876        _window: &mut Window,
 877        cx: &mut Context<Self>,
 878    ) {
 879        let old_len = self.messages.len();
 880        self.messages.push(*id);
 881        self.list_state.splice(old_len..old_len, 1);
 882
 883        let rendered_message =
 884            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 885        self.rendered_messages_by_id.insert(*id, rendered_message);
 886    }
 887
 888    fn edited_message(
 889        &mut self,
 890        id: &MessageId,
 891        segments: &[MessageSegment],
 892        _window: &mut Window,
 893        cx: &mut Context<Self>,
 894    ) {
 895        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 896            return;
 897        };
 898        self.list_state.splice(index..index + 1, 1);
 899        let rendered_message =
 900            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 901        self.rendered_messages_by_id.insert(*id, rendered_message);
 902    }
 903
 904    fn deleted_message(&mut self, id: &MessageId) {
 905        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 906            return;
 907        };
 908        self.messages.remove(index);
 909        self.list_state.splice(index..index + 1, 0);
 910        self.rendered_messages_by_id.remove(id);
 911    }
 912
 913    fn render_tool_use_markdown(
 914        &mut self,
 915        tool_use_id: LanguageModelToolUseId,
 916        tool_label: impl Into<SharedString>,
 917        tool_input: &str,
 918        tool_output: SharedString,
 919        cx: &mut Context<Self>,
 920    ) {
 921        let rendered = self
 922            .rendered_tool_uses
 923            .entry(tool_use_id.clone())
 924            .or_insert_with(|| RenderedToolUse {
 925                label: cx.new(|cx| {
 926                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 927                }),
 928                input: cx.new(|cx| {
 929                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 930                }),
 931                output: cx.new(|cx| {
 932                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 933                }),
 934            });
 935
 936        rendered.label.update(cx, |this, cx| {
 937            this.replace(tool_label, cx);
 938        });
 939        rendered.input.update(cx, |this, cx| {
 940            this.replace(
 941                MarkdownCodeBlock {
 942                    tag: "json",
 943                    text: tool_input,
 944                }
 945                .to_string(),
 946                cx,
 947            );
 948        });
 949        rendered.output.update(cx, |this, cx| {
 950            this.replace(tool_output, cx);
 951        });
 952    }
 953
 954    fn handle_thread_event(
 955        &mut self,
 956        _thread: &Entity<Thread>,
 957        event: &ThreadEvent,
 958        window: &mut Window,
 959        cx: &mut Context<Self>,
 960    ) {
 961        match event {
 962            ThreadEvent::CancelEditing => {
 963                if self.editing_message.is_some() {
 964                    self.cancel_editing_message(&menu::Cancel, window, cx);
 965                }
 966            }
 967            ThreadEvent::ShowError(error) => {
 968                self.last_error = Some(error.clone());
 969            }
 970            ThreadEvent::NewRequest | ThreadEvent::CompletionCanceled => {
 971                cx.notify();
 972            }
 973            ThreadEvent::StreamedCompletion
 974            | ThreadEvent::SummaryGenerated
 975            | ThreadEvent::SummaryChanged => {
 976                self.save_thread(cx);
 977            }
 978            ThreadEvent::Stopped(reason) => match reason {
 979                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 980                    let thread = self.thread.read(cx);
 981                    self.show_notification(
 982                        if thread.used_tools_since_last_user_message() {
 983                            "Finished running tools"
 984                        } else {
 985                            "New message"
 986                        },
 987                        IconName::ZedAssistant,
 988                        window,
 989                        cx,
 990                    );
 991                }
 992                _ => {}
 993            },
 994            ThreadEvent::ToolConfirmationNeeded => {
 995                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 996            }
 997            ThreadEvent::StreamedAssistantText(message_id, text) => {
 998                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 999                    rendered_message.append_text(text, cx);
1000                }
1001            }
1002            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1003                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1004                    rendered_message.append_thinking(text, cx);
1005                }
1006            }
1007            ThreadEvent::MessageAdded(message_id) => {
1008                if let Some(message_segments) = self
1009                    .thread
1010                    .read(cx)
1011                    .message(*message_id)
1012                    .map(|message| message.segments.clone())
1013                {
1014                    self.push_message(message_id, &message_segments, window, cx);
1015                }
1016
1017                self.scroll_to_bottom(cx);
1018                self.save_thread(cx);
1019                cx.notify();
1020            }
1021            ThreadEvent::MessageEdited(message_id) => {
1022                if let Some(message_segments) = self
1023                    .thread
1024                    .read(cx)
1025                    .message(*message_id)
1026                    .map(|message| message.segments.clone())
1027                {
1028                    self.edited_message(message_id, &message_segments, window, cx);
1029                }
1030
1031                self.scroll_to_bottom(cx);
1032                self.save_thread(cx);
1033                cx.notify();
1034            }
1035            ThreadEvent::MessageDeleted(message_id) => {
1036                self.deleted_message(message_id);
1037                self.save_thread(cx);
1038                cx.notify();
1039            }
1040            ThreadEvent::UsePendingTools { tool_uses } => {
1041                for tool_use in tool_uses {
1042                    self.render_tool_use_markdown(
1043                        tool_use.id.clone(),
1044                        tool_use.ui_text.clone(),
1045                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1046                        "".into(),
1047                        cx,
1048                    );
1049                }
1050            }
1051            ThreadEvent::StreamedToolUse {
1052                tool_use_id,
1053                ui_text,
1054                input,
1055            } => {
1056                self.render_tool_use_markdown(
1057                    tool_use_id.clone(),
1058                    ui_text.clone(),
1059                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1060                    "".into(),
1061                    cx,
1062                );
1063            }
1064            ThreadEvent::ToolFinished {
1065                pending_tool_use, ..
1066            } => {
1067                if let Some(tool_use) = pending_tool_use {
1068                    self.render_tool_use_markdown(
1069                        tool_use.id.clone(),
1070                        tool_use.ui_text.clone(),
1071                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1072                        self.thread
1073                            .read(cx)
1074                            .output_for_tool(&tool_use.id)
1075                            .map(|output| output.clone().into())
1076                            .unwrap_or("".into()),
1077                        cx,
1078                    );
1079                }
1080            }
1081            ThreadEvent::CheckpointChanged => cx.notify(),
1082            ThreadEvent::ReceivedTextChunk => {}
1083            ThreadEvent::InvalidToolInput {
1084                tool_use_id,
1085                ui_text,
1086                invalid_input_json,
1087            } => {
1088                self.render_tool_use_markdown(
1089                    tool_use_id.clone(),
1090                    ui_text,
1091                    invalid_input_json,
1092                    self.thread
1093                        .read(cx)
1094                        .output_for_tool(tool_use_id)
1095                        .map(|output| output.clone().into())
1096                        .unwrap_or("".into()),
1097                    cx,
1098                );
1099            }
1100            ThreadEvent::MissingToolUse {
1101                tool_use_id,
1102                ui_text,
1103            } => {
1104                self.render_tool_use_markdown(
1105                    tool_use_id.clone(),
1106                    ui_text,
1107                    "",
1108                    self.thread
1109                        .read(cx)
1110                        .output_for_tool(tool_use_id)
1111                        .map(|output| output.clone().into())
1112                        .unwrap_or("".into()),
1113                    cx,
1114                );
1115            }
1116        }
1117    }
1118
1119    fn handle_rules_loading_error(
1120        &mut self,
1121        _thread_store: Entity<ThreadStore>,
1122        error: &RulesLoadingError,
1123        cx: &mut Context<Self>,
1124    ) {
1125        self.last_error = Some(ThreadError::Message {
1126            header: "Error loading rules file".into(),
1127            message: error.message.clone(),
1128        });
1129        cx.notify();
1130    }
1131
1132    fn show_notification(
1133        &mut self,
1134        caption: impl Into<SharedString>,
1135        icon: IconName,
1136        window: &mut Window,
1137        cx: &mut Context<ActiveThread>,
1138    ) {
1139        if window.is_window_active() || !self.notifications.is_empty() {
1140            return;
1141        }
1142
1143        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1144
1145        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1146            NotifyWhenAgentWaiting::PrimaryScreen => {
1147                if let Some(primary) = cx.primary_display() {
1148                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1149                }
1150            }
1151            NotifyWhenAgentWaiting::AllScreens => {
1152                let caption = caption.into();
1153                for screen in cx.displays() {
1154                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1155                }
1156            }
1157            NotifyWhenAgentWaiting::Never => {
1158                // Don't show anything
1159            }
1160        }
1161    }
1162
1163    fn pop_up(
1164        &mut self,
1165        icon: IconName,
1166        caption: SharedString,
1167        title: SharedString,
1168        window: &mut Window,
1169        screen: Rc<dyn PlatformDisplay>,
1170        cx: &mut Context<'_, ActiveThread>,
1171    ) {
1172        let options = AgentNotification::window_options(screen, cx);
1173
1174        let project_name = self.workspace.upgrade().and_then(|workspace| {
1175            workspace
1176                .read(cx)
1177                .project()
1178                .read(cx)
1179                .visible_worktrees(cx)
1180                .next()
1181                .map(|worktree| worktree.read(cx).root_name().to_string())
1182        });
1183
1184        if let Some(screen_window) = cx
1185            .open_window(options, |_, cx| {
1186                cx.new(|_| {
1187                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1188                })
1189            })
1190            .log_err()
1191        {
1192            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1193                self.notification_subscriptions
1194                    .entry(screen_window)
1195                    .or_insert_with(Vec::new)
1196                    .push(cx.subscribe_in(&pop_up, window, {
1197                        |this, _, event, window, cx| match event {
1198                            AgentNotificationEvent::Accepted => {
1199                                let handle = window.window_handle();
1200                                cx.activate(true);
1201
1202                                let workspace_handle = this.workspace.clone();
1203
1204                                // If there are multiple Zed windows, activate the correct one.
1205                                cx.defer(move |cx| {
1206                                    handle
1207                                        .update(cx, |_view, window, _cx| {
1208                                            window.activate_window();
1209
1210                                            if let Some(workspace) = workspace_handle.upgrade() {
1211                                                workspace.update(_cx, |workspace, cx| {
1212                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1213                                                });
1214                                            }
1215                                        })
1216                                        .log_err();
1217                                });
1218
1219                                this.dismiss_notifications(cx);
1220                            }
1221                            AgentNotificationEvent::Dismissed => {
1222                                this.dismiss_notifications(cx);
1223                            }
1224                        }
1225                    }));
1226
1227                self.notifications.push(screen_window);
1228
1229                // If the user manually refocuses the original window, dismiss the popup.
1230                self.notification_subscriptions
1231                    .entry(screen_window)
1232                    .or_insert_with(Vec::new)
1233                    .push({
1234                        let pop_up_weak = pop_up.downgrade();
1235
1236                        cx.observe_window_activation(window, move |_, window, cx| {
1237                            if window.is_window_active() {
1238                                if let Some(pop_up) = pop_up_weak.upgrade() {
1239                                    pop_up.update(cx, |_, cx| {
1240                                        cx.emit(AgentNotificationEvent::Dismissed);
1241                                    });
1242                                }
1243                            }
1244                        })
1245                    });
1246            }
1247        }
1248    }
1249
1250    /// Spawns a task to save the active thread.
1251    ///
1252    /// Only one task to save the thread will be in flight at a time.
1253    fn save_thread(&mut self, cx: &mut Context<Self>) {
1254        let thread = self.thread.clone();
1255        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1256            let task = this
1257                .update(cx, |this, cx| {
1258                    this.thread_store
1259                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1260                })
1261                .ok();
1262
1263            if let Some(task) = task {
1264                task.await.log_err();
1265            }
1266        }));
1267    }
1268
1269    fn start_editing_message(
1270        &mut self,
1271        message_id: MessageId,
1272        message_segments: &[MessageSegment],
1273        message_creases: &[MessageCrease],
1274        window: &mut Window,
1275        cx: &mut Context<Self>,
1276    ) {
1277        // User message should always consist of a single text segment,
1278        // therefore we can skip returning early if it's not a text segment.
1279        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1280            return;
1281        };
1282
1283        let editor = crate::message_editor::create_editor(
1284            self.workspace.clone(),
1285            self.context_store.downgrade(),
1286            self.thread_store.downgrade(),
1287            self.text_thread_store.downgrade(),
1288            window,
1289            cx,
1290        );
1291        editor.update(cx, |editor, cx| {
1292            editor.set_text(message_text.clone(), window, cx);
1293            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1294            editor.focus_handle(cx).focus(window);
1295            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1296        });
1297        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1298            EditorEvent::BufferEdited => {
1299                this.update_editing_message_token_count(true, cx);
1300            }
1301            _ => {}
1302        });
1303
1304        let context_picker_menu_handle = PopoverMenuHandle::default();
1305        let context_strip = cx.new(|cx| {
1306            ContextStrip::new(
1307                self.context_store.clone(),
1308                self.workspace.clone(),
1309                Some(self.thread_store.downgrade()),
1310                Some(self.text_thread_store.downgrade()),
1311                context_picker_menu_handle.clone(),
1312                SuggestContextKind::File,
1313                window,
1314                cx,
1315            )
1316        });
1317
1318        let context_strip_subscription =
1319            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1320
1321        self.editing_message = Some((
1322            message_id,
1323            EditingMessageState {
1324                editor: editor.clone(),
1325                context_strip,
1326                context_picker_menu_handle,
1327                last_estimated_token_count: None,
1328                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1329                _update_token_count_task: None,
1330            },
1331        ));
1332        self.update_editing_message_token_count(false, cx);
1333        cx.notify();
1334    }
1335
1336    fn handle_context_strip_event(
1337        &mut self,
1338        _context_strip: &Entity<ContextStrip>,
1339        event: &ContextStripEvent,
1340        window: &mut Window,
1341        cx: &mut Context<Self>,
1342    ) {
1343        if let Some((_, state)) = self.editing_message.as_ref() {
1344            match event {
1345                ContextStripEvent::PickerDismissed
1346                | ContextStripEvent::BlurredEmpty
1347                | ContextStripEvent::BlurredDown => {
1348                    let editor_focus_handle = state.editor.focus_handle(cx);
1349                    window.focus(&editor_focus_handle);
1350                }
1351                ContextStripEvent::BlurredUp => {}
1352            }
1353        }
1354    }
1355
1356    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1357        let Some((message_id, state)) = self.editing_message.as_mut() else {
1358            return;
1359        };
1360
1361        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1362        state._update_token_count_task.take();
1363
1364        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1365            state.last_estimated_token_count.take();
1366            return;
1367        };
1368
1369        let editor = state.editor.clone();
1370        let thread = self.thread.clone();
1371        let message_id = *message_id;
1372
1373        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1374            if debounce {
1375                cx.background_executor()
1376                    .timer(Duration::from_millis(200))
1377                    .await;
1378            }
1379
1380            let token_count = if let Some(task) = cx
1381                .update(|cx| {
1382                    let Some(message) = thread.read(cx).message(message_id) else {
1383                        log::error!("Message that was being edited no longer exists");
1384                        return None;
1385                    };
1386                    let message_text = editor.read(cx).text(cx);
1387
1388                    if message_text.is_empty() && message.loaded_context.is_empty() {
1389                        return None;
1390                    }
1391
1392                    let mut request_message = LanguageModelRequestMessage {
1393                        role: language_model::Role::User,
1394                        content: Vec::new(),
1395                        cache: false,
1396                    };
1397
1398                    message
1399                        .loaded_context
1400                        .add_to_request_message(&mut request_message);
1401
1402                    if !message_text.is_empty() {
1403                        request_message
1404                            .content
1405                            .push(MessageContent::Text(message_text));
1406                    }
1407
1408                    let request = language_model::LanguageModelRequest {
1409                        thread_id: None,
1410                        prompt_id: None,
1411                        mode: None,
1412                        messages: vec![request_message],
1413                        tools: vec![],
1414                        tool_choice: None,
1415                        stop: vec![],
1416                        temperature: AssistantSettings::temperature_for_model(
1417                            &configured_model.model,
1418                            cx,
1419                        ),
1420                    };
1421
1422                    Some(configured_model.model.count_tokens(request, cx))
1423                })
1424                .ok()
1425                .flatten()
1426            {
1427                task.await.log_err()
1428            } else {
1429                Some(0)
1430            };
1431
1432            if let Some(token_count) = token_count {
1433                this.update(cx, |this, cx| {
1434                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1435                        return;
1436                    };
1437
1438                    state.last_estimated_token_count = Some(token_count);
1439                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1440                })
1441                .ok();
1442            };
1443        }));
1444    }
1445
1446    fn toggle_context_picker(
1447        &mut self,
1448        _: &crate::ToggleContextPicker,
1449        window: &mut Window,
1450        cx: &mut Context<Self>,
1451    ) {
1452        if let Some((_, state)) = self.editing_message.as_mut() {
1453            let handle = state.context_picker_menu_handle.clone();
1454            window.defer(cx, move |window, cx| {
1455                handle.toggle(window, cx);
1456            });
1457        }
1458    }
1459
1460    fn remove_all_context(
1461        &mut self,
1462        _: &crate::RemoveAllContext,
1463        _window: &mut Window,
1464        cx: &mut Context<Self>,
1465    ) {
1466        self.context_store.update(cx, |store, _cx| store.clear());
1467        cx.notify();
1468    }
1469
1470    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1471        if let Some((_, state)) = self.editing_message.as_mut() {
1472            if state.context_picker_menu_handle.is_deployed() {
1473                cx.propagate();
1474            } else {
1475                state.context_strip.focus_handle(cx).focus(window);
1476            }
1477        }
1478    }
1479
1480    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1481        let images = cx
1482            .read_from_clipboard()
1483            .map(|item| {
1484                item.into_entries()
1485                    .filter_map(|entry| {
1486                        if let ClipboardEntry::Image(image) = entry {
1487                            Some(image)
1488                        } else {
1489                            None
1490                        }
1491                    })
1492                    .collect::<Vec<_>>()
1493            })
1494            .unwrap_or_default();
1495
1496        if images.is_empty() {
1497            return;
1498        }
1499        cx.stop_propagation();
1500
1501        self.context_store.update(cx, |store, cx| {
1502            for image in images {
1503                store.add_image_instance(Arc::new(image), cx);
1504            }
1505        });
1506    }
1507
1508    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1509        self.editing_message.take();
1510        cx.notify();
1511    }
1512
1513    fn confirm_editing_message(
1514        &mut self,
1515        _: &menu::Confirm,
1516        window: &mut Window,
1517        cx: &mut Context<Self>,
1518    ) {
1519        let Some((message_id, state)) = self.editing_message.take() else {
1520            return;
1521        };
1522
1523        let Some(model) = self
1524            .thread
1525            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1526        else {
1527            return;
1528        };
1529
1530        if model.provider.must_accept_terms(cx) {
1531            cx.notify();
1532            return;
1533        }
1534
1535        let edited_text = state.editor.read(cx).text(cx);
1536
1537        let new_context = self
1538            .context_store
1539            .read(cx)
1540            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1541
1542        let project = self.thread.read(cx).project().clone();
1543        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1544
1545        let git_store = project.read(cx).git_store().clone();
1546        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1547
1548        let load_context_task =
1549            crate::context::load_context(new_context, &project, &prompt_store, cx);
1550        self._load_edited_message_context_task =
1551            Some(cx.spawn_in(window, async move |this, cx| {
1552                let (context, checkpoint) =
1553                    futures::future::join(load_context_task, checkpoint).await;
1554                let _ = this
1555                    .update_in(cx, |this, window, cx| {
1556                        this.thread.update(cx, |thread, cx| {
1557                            thread.edit_message(
1558                                message_id,
1559                                Role::User,
1560                                vec![MessageSegment::Text(edited_text)],
1561                                Some(context.loaded_context),
1562                                checkpoint.ok(),
1563                                cx,
1564                            );
1565                            for message_id in this.messages_after(message_id) {
1566                                thread.delete_message(*message_id, cx);
1567                            }
1568                        });
1569
1570                        this.thread.update(cx, |thread, cx| {
1571                            thread.advance_prompt_id();
1572                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1573                        });
1574                        this._load_edited_message_context_task = None;
1575                        cx.notify();
1576                    })
1577                    .log_err();
1578            }));
1579    }
1580
1581    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1582        self.messages
1583            .iter()
1584            .position(|id| *id == message_id)
1585            .map(|index| &self.messages[index + 1..])
1586            .unwrap_or(&[])
1587    }
1588
1589    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1590        self.cancel_editing_message(&menu::Cancel, window, cx);
1591    }
1592
1593    fn handle_regenerate_click(
1594        &mut self,
1595        _: &ClickEvent,
1596        window: &mut Window,
1597        cx: &mut Context<Self>,
1598    ) {
1599        self.confirm_editing_message(&menu::Confirm, window, cx);
1600    }
1601
1602    fn handle_feedback_click(
1603        &mut self,
1604        message_id: MessageId,
1605        feedback: ThreadFeedback,
1606        window: &mut Window,
1607        cx: &mut Context<Self>,
1608    ) {
1609        let report = self.thread.update(cx, |thread, cx| {
1610            thread.report_message_feedback(message_id, feedback, cx)
1611        });
1612
1613        cx.spawn(async move |this, cx| {
1614            report.await?;
1615            this.update(cx, |_this, cx| cx.notify())
1616        })
1617        .detach_and_log_err(cx);
1618
1619        match feedback {
1620            ThreadFeedback::Positive => {
1621                self.open_feedback_editors.remove(&message_id);
1622            }
1623            ThreadFeedback::Negative => {
1624                self.handle_show_feedback_comments(message_id, window, cx);
1625            }
1626        }
1627    }
1628
1629    fn handle_show_feedback_comments(
1630        &mut self,
1631        message_id: MessageId,
1632        window: &mut Window,
1633        cx: &mut Context<Self>,
1634    ) {
1635        let buffer = cx.new(|cx| {
1636            let empty_string = String::new();
1637            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1638        });
1639
1640        let editor = cx.new(|cx| {
1641            let mut editor = Editor::new(
1642                editor::EditorMode::AutoHeight { max_lines: 4 },
1643                buffer,
1644                None,
1645                window,
1646                cx,
1647            );
1648            editor.set_placeholder_text(
1649                "What went wrong? Share your feedback so we can improve.",
1650                cx,
1651            );
1652            editor
1653        });
1654
1655        editor.read(cx).focus_handle(cx).focus(window);
1656        self.open_feedback_editors.insert(message_id, editor);
1657        cx.notify();
1658    }
1659
1660    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1661        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1662            return;
1663        };
1664
1665        let report_task = self.thread.update(cx, |thread, cx| {
1666            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1667        });
1668
1669        let comments = editor.read(cx).text(cx);
1670        if !comments.is_empty() {
1671            let thread_id = self.thread.read(cx).id().clone();
1672            let comments_value = String::from(comments.as_str());
1673
1674            let message_content = self
1675                .thread
1676                .read(cx)
1677                .message(message_id)
1678                .map(|msg| msg.to_string())
1679                .unwrap_or_default();
1680
1681            telemetry::event!(
1682                "Assistant Thread Feedback Comments",
1683                thread_id,
1684                message_id = message_id.0,
1685                message_content,
1686                comments = comments_value
1687            );
1688
1689            self.open_feedback_editors.remove(&message_id);
1690
1691            cx.spawn(async move |this, cx| {
1692                report_task.await?;
1693                this.update(cx, |_this, cx| cx.notify())
1694            })
1695            .detach_and_log_err(cx);
1696        }
1697    }
1698
1699    fn render_edit_message_editor(
1700        &self,
1701        state: &EditingMessageState,
1702        _window: &mut Window,
1703        cx: &Context<Self>,
1704    ) -> impl IntoElement {
1705        let settings = ThemeSettings::get_global(cx);
1706        let font_size = TextSize::Small
1707            .rems(cx)
1708            .to_pixels(settings.agent_font_size(cx));
1709        let line_height = font_size * 1.75;
1710
1711        let colors = cx.theme().colors();
1712
1713        let text_style = TextStyle {
1714            color: colors.text,
1715            font_family: settings.buffer_font.family.clone(),
1716            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1717            font_features: settings.buffer_font.features.clone(),
1718            font_size: font_size.into(),
1719            line_height: line_height.into(),
1720            ..Default::default()
1721        };
1722
1723        v_flex()
1724            .key_context("EditMessageEditor")
1725            .on_action(cx.listener(Self::toggle_context_picker))
1726            .on_action(cx.listener(Self::remove_all_context))
1727            .on_action(cx.listener(Self::move_up))
1728            .on_action(cx.listener(Self::cancel_editing_message))
1729            .on_action(cx.listener(Self::confirm_editing_message))
1730            .capture_action(cx.listener(Self::paste))
1731            .min_h_6()
1732            .w_full()
1733            .flex_grow()
1734            .gap_2()
1735            .child(state.context_strip.clone())
1736            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1737                &state.editor,
1738                EditorStyle {
1739                    background: colors.editor_background,
1740                    local_player: cx.theme().players().local(),
1741                    text: text_style,
1742                    syntax: cx.theme().syntax().clone(),
1743                    ..Default::default()
1744                },
1745            )))
1746    }
1747
1748    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1749        let message_id = self.messages[ix];
1750        let Some(message) = self.thread.read(cx).message(message_id) else {
1751            return Empty.into_any();
1752        };
1753        let message_creases = message.creases.clone();
1754
1755        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1756            return Empty.into_any();
1757        };
1758
1759        let workspace = self.workspace.clone();
1760        let thread = self.thread.read(cx);
1761
1762        // Get all the data we need from thread before we start using it in closures
1763        let checkpoint = thread.checkpoint_for_message(message_id);
1764        let added_context = thread
1765            .context_for_message(message_id)
1766            .map(|context| AddedContext::new_attached(context, cx))
1767            .collect::<Vec<_>>();
1768
1769        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1770        let has_tool_uses = !tool_uses.is_empty();
1771        let is_generating = thread.is_generating();
1772        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1773
1774        let is_first_message = ix == 0;
1775        let is_last_message = ix == self.messages.len() - 1;
1776
1777        let loading_dots = (is_generating_stale && is_last_message)
1778            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1779
1780        let editing_message_state = self
1781            .editing_message
1782            .as_ref()
1783            .filter(|(id, _)| *id == message_id)
1784            .map(|(_, state)| state);
1785
1786        let colors = cx.theme().colors();
1787        let editor_bg_color = colors.editor_background;
1788
1789        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1790            .icon_size(IconSize::XSmall)
1791            .icon_color(Color::Ignored)
1792            .tooltip(Tooltip::text("Open Thread as Markdown"))
1793            .on_click({
1794                let thread = self.thread.clone();
1795                let workspace = self.workspace.clone();
1796                move |_, window, cx| {
1797                    if let Some(workspace) = workspace.upgrade() {
1798                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1799                            .detach_and_log_err(cx);
1800                    }
1801                }
1802            });
1803
1804        // For all items that should be aligned with the LLM's response.
1805        const RESPONSE_PADDING_X: Pixels = px(19.);
1806
1807        let show_feedback = thread.is_turn_end(ix);
1808
1809        let feedback_container = h_flex()
1810            .group("feedback_container")
1811            .mt_1()
1812            .py_2()
1813            .px(RESPONSE_PADDING_X)
1814            .mr_1()
1815            .opacity(0.4)
1816            .hover(|style| style.opacity(1.))
1817            .gap_1p5()
1818            .flex_wrap()
1819            .justify_end();
1820        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1821            Some(feedback) => feedback_container
1822                .child(
1823                    div().visible_on_hover("feedback_container").child(
1824                        Label::new(match feedback {
1825                            ThreadFeedback::Positive => "Thanks for your feedback!",
1826                            ThreadFeedback::Negative => {
1827                                "We appreciate your feedback and will use it to improve."
1828                            }
1829                        })
1830                    .color(Color::Muted)
1831                    .size(LabelSize::XSmall)
1832                    .truncate())
1833                )
1834                .child(
1835                    h_flex()
1836                        .child(
1837                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1838                                .icon_size(IconSize::XSmall)
1839                                .icon_color(match feedback {
1840                                    ThreadFeedback::Positive => Color::Accent,
1841                                    ThreadFeedback::Negative => Color::Ignored,
1842                                })
1843                                .tooltip(Tooltip::text("Helpful Response"))
1844                                .on_click(cx.listener(move |this, _, window, cx| {
1845                                    this.handle_feedback_click(
1846                                        message_id,
1847                                        ThreadFeedback::Positive,
1848                                        window,
1849                                        cx,
1850                                    );
1851                                })),
1852                        )
1853                        .child(
1854                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1855                                .icon_size(IconSize::XSmall)
1856                                .icon_color(match feedback {
1857                                    ThreadFeedback::Positive => Color::Ignored,
1858                                    ThreadFeedback::Negative => Color::Accent,
1859                                })
1860                                .tooltip(Tooltip::text("Not Helpful"))
1861                                .on_click(cx.listener(move |this, _, window, cx| {
1862                                    this.handle_feedback_click(
1863                                        message_id,
1864                                        ThreadFeedback::Negative,
1865                                        window,
1866                                        cx,
1867                                    );
1868                                })),
1869                        )
1870                        .child(open_as_markdown),
1871                )
1872                .into_any_element(),
1873            None if AssistantSettings::get_global(cx).enable_feedback =>
1874                feedback_container
1875                .child(
1876                    div().visible_on_hover("feedback_container").child(
1877                        Label::new(
1878                            "Rating the thread sends all of your current conversation to the Zed team.",
1879                        )
1880                        .color(Color::Muted)
1881                    .size(LabelSize::XSmall)
1882                    .truncate())
1883                )
1884                .child(
1885                    h_flex()
1886                        .child(
1887                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1888                                .icon_size(IconSize::XSmall)
1889                                .icon_color(Color::Ignored)
1890                                .tooltip(Tooltip::text("Helpful Response"))
1891                                .on_click(cx.listener(move |this, _, window, cx| {
1892                                    this.handle_feedback_click(
1893                                        message_id,
1894                                        ThreadFeedback::Positive,
1895                                        window,
1896                                        cx,
1897                                    );
1898                                })),
1899                        )
1900                        .child(
1901                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1902                                .icon_size(IconSize::XSmall)
1903                                .icon_color(Color::Ignored)
1904                                .tooltip(Tooltip::text("Not Helpful"))
1905                                .on_click(cx.listener(move |this, _, window, cx| {
1906                                    this.handle_feedback_click(
1907                                        message_id,
1908                                        ThreadFeedback::Negative,
1909                                        window,
1910                                        cx,
1911                                    );
1912                                })),
1913                        )
1914                        .child(open_as_markdown),
1915                )
1916                .into_any_element(),
1917            None => feedback_container
1918                .child(h_flex().child(open_as_markdown))
1919                .into_any_element(),
1920        };
1921
1922        let message_is_empty = message.should_display_content();
1923        let has_content = !message_is_empty || !added_context.is_empty();
1924
1925        let message_content = has_content.then(|| {
1926            if let Some(state) = editing_message_state.as_ref() {
1927                self.render_edit_message_editor(state, window, cx)
1928                    .into_any_element()
1929            } else {
1930                v_flex()
1931                    .w_full()
1932                    .gap_1()
1933                    .when(!added_context.is_empty(), |parent| {
1934                        parent.child(h_flex().flex_wrap().gap_1().children(
1935                            added_context.into_iter().map(|added_context| {
1936                                let context = added_context.handle.clone();
1937                                ContextPill::added(added_context, false, false, None).on_click(
1938                                    Rc::new(cx.listener({
1939                                        let workspace = workspace.clone();
1940                                        move |_, _, window, cx| {
1941                                            if let Some(workspace) = workspace.upgrade() {
1942                                                open_context(&context, workspace, window, cx);
1943                                                cx.notify();
1944                                            }
1945                                        }
1946                                    })),
1947                                )
1948                            }),
1949                        ))
1950                    })
1951                    .when(!message_is_empty, |parent| {
1952                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1953                            message_id,
1954                            rendered_message,
1955                            has_tool_uses,
1956                            workspace.clone(),
1957                            window,
1958                            cx,
1959                        )))
1960                    })
1961                    .into_any_element()
1962            }
1963        });
1964
1965        let styled_message = match message.role {
1966            Role::User => v_flex()
1967                .id(("message-container", ix))
1968                .pt_2()
1969                .pl_2()
1970                .pr_2p5()
1971                .pb_4()
1972                .child(
1973                    v_flex()
1974                        .id(("user-message", ix))
1975                        .bg(editor_bg_color)
1976                        .rounded_lg()
1977                        .shadow_md()
1978                        .border_1()
1979                        .border_color(colors.border)
1980                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1981                        .cursor_pointer()
1982                        .child(
1983                            h_flex()
1984                                .p_2p5()
1985                                .gap_1()
1986                                .items_end()
1987                                .children(message_content)
1988                                .when_some(editing_message_state, |this, state| {
1989                                    let focus_handle = state.editor.focus_handle(cx).clone();
1990                                    this.w_full().justify_between().child(
1991                                        h_flex()
1992                                            .gap_0p5()
1993                                            .child(
1994                                                IconButton::new(
1995                                                    "cancel-edit-message",
1996                                                    IconName::Close,
1997                                                )
1998                                                .shape(ui::IconButtonShape::Square)
1999                                                .icon_color(Color::Error)
2000                                                .icon_size(IconSize::Small)
2001                                                .tooltip({
2002                                                    let focus_handle = focus_handle.clone();
2003                                                    move |window, cx| {
2004                                                        Tooltip::for_action_in(
2005                                                            "Cancel Edit",
2006                                                            &menu::Cancel,
2007                                                            &focus_handle,
2008                                                            window,
2009                                                            cx,
2010                                                        )
2011                                                    }
2012                                                })
2013                                                .on_click(cx.listener(Self::handle_cancel_click)),
2014                                            )
2015                                            .child(
2016                                                IconButton::new(
2017                                                    "confirm-edit-message",
2018                                                    IconName::Return,
2019                                                )
2020                                                .disabled(state.editor.read(cx).is_empty(cx))
2021                                                .shape(ui::IconButtonShape::Square)
2022                                                .icon_color(Color::Muted)
2023                                                .icon_size(IconSize::Small)
2024                                                .tooltip({
2025                                                    let focus_handle = focus_handle.clone();
2026                                                    move |window, cx| {
2027                                                        Tooltip::for_action_in(
2028                                                            "Regenerate",
2029                                                            &menu::Confirm,
2030                                                            &focus_handle,
2031                                                            window,
2032                                                            cx,
2033                                                        )
2034                                                    }
2035                                                })
2036                                                .on_click(
2037                                                    cx.listener(Self::handle_regenerate_click),
2038                                                ),
2039                                            ),
2040                                    )
2041                                }),
2042                        )
2043                        .on_click(cx.listener({
2044                            let message_segments = message.segments.clone();
2045                            move |this, _, window, cx| {
2046                                this.start_editing_message(
2047                                    message_id,
2048                                    &message_segments,
2049                                    &message_creases,
2050                                    window,
2051                                    cx,
2052                                );
2053                            }
2054                        })),
2055                ),
2056            Role::Assistant => v_flex()
2057                .id(("message-container", ix))
2058                .px(RESPONSE_PADDING_X)
2059                .gap_2()
2060                .children(message_content)
2061                .when(has_tool_uses, |parent| {
2062                    parent.children(tool_uses.into_iter().map(|tool_use| {
2063                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2064                    }))
2065                }),
2066            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2067                v_flex()
2068                    .bg(colors.editor_background)
2069                    .rounded_sm()
2070                    .child(div().p_4().children(message_content)),
2071            ),
2072        };
2073
2074        let after_editing_message = self
2075            .editing_message
2076            .as_ref()
2077            .map_or(false, |(editing_message_id, _)| {
2078                message_id > *editing_message_id
2079            });
2080
2081        let panel_background = cx.theme().colors().panel_background;
2082
2083        let backdrop = div()
2084            .id("backdrop")
2085            .stop_mouse_events_except_scroll()
2086            .absolute()
2087            .inset_0()
2088            .size_full()
2089            .bg(panel_background)
2090            .opacity(0.8)
2091            .on_click(cx.listener(Self::handle_cancel_click));
2092
2093        v_flex()
2094            .w_full()
2095            .map(|parent| {
2096                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2097                    let mut is_pending = false;
2098                    let mut error = None;
2099                    if let Some(last_restore_checkpoint) =
2100                        self.thread.read(cx).last_restore_checkpoint()
2101                    {
2102                        if last_restore_checkpoint.message_id() == message_id {
2103                            match last_restore_checkpoint {
2104                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2105                                LastRestoreCheckpoint::Error { error: err, .. } => {
2106                                    error = Some(err.clone());
2107                                }
2108                            }
2109                        }
2110                    }
2111
2112                    let restore_checkpoint_button =
2113                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2114                            .icon(if error.is_some() {
2115                                IconName::XCircle
2116                            } else {
2117                                IconName::Undo
2118                            })
2119                            .icon_size(IconSize::XSmall)
2120                            .icon_position(IconPosition::Start)
2121                            .icon_color(if error.is_some() {
2122                                Some(Color::Error)
2123                            } else {
2124                                None
2125                            })
2126                            .label_size(LabelSize::XSmall)
2127                            .disabled(is_pending)
2128                            .on_click(cx.listener(move |this, _, _window, cx| {
2129                                this.thread.update(cx, |thread, cx| {
2130                                    thread
2131                                        .restore_checkpoint(checkpoint.clone(), cx)
2132                                        .detach_and_log_err(cx);
2133                                });
2134                            }));
2135
2136                    let restore_checkpoint_button = if is_pending {
2137                        restore_checkpoint_button
2138                            .with_animation(
2139                                ("pulsating-restore-checkpoint-button", ix),
2140                                Animation::new(Duration::from_secs(2))
2141                                    .repeat()
2142                                    .with_easing(pulsating_between(0.6, 1.)),
2143                                |label, delta| label.alpha(delta),
2144                            )
2145                            .into_any_element()
2146                    } else if let Some(error) = error {
2147                        restore_checkpoint_button
2148                            .tooltip(Tooltip::text(error.to_string()))
2149                            .into_any_element()
2150                    } else {
2151                        restore_checkpoint_button.into_any_element()
2152                    };
2153
2154                    parent.child(
2155                        h_flex()
2156                            .pt_2p5()
2157                            .px_2p5()
2158                            .w_full()
2159                            .gap_1()
2160                            .child(ui::Divider::horizontal())
2161                            .child(restore_checkpoint_button)
2162                            .child(ui::Divider::horizontal()),
2163                    )
2164                } else {
2165                    parent
2166                }
2167            })
2168            .when(is_first_message, |parent| {
2169                parent.child(self.render_rules_item(cx))
2170            })
2171            .child(styled_message)
2172            .when(is_generating && is_last_message, |this| {
2173                this.child(
2174                    h_flex()
2175                        .h_8()
2176                        .mt_2()
2177                        .mb_4()
2178                        .ml_4()
2179                        .py_1p5()
2180                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2181                )
2182            })
2183            .when(show_feedback, move |parent| {
2184                parent.child(feedback_items).when_some(
2185                    self.open_feedback_editors.get(&message_id),
2186                    move |parent, feedback_editor| {
2187                        let focus_handle = feedback_editor.focus_handle(cx);
2188                        parent.child(
2189                            v_flex()
2190                                .key_context("AgentFeedbackMessageEditor")
2191                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2192                                    this.open_feedback_editors.remove(&message_id);
2193                                    cx.notify();
2194                                }))
2195                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2196                                    this.submit_feedback_message(message_id, cx);
2197                                    cx.notify();
2198                                }))
2199                                .on_action(cx.listener(Self::confirm_editing_message))
2200                                .mb_2()
2201                                .mx_4()
2202                                .p_2()
2203                                .rounded_md()
2204                                .border_1()
2205                                .border_color(cx.theme().colors().border)
2206                                .bg(cx.theme().colors().editor_background)
2207                                .child(feedback_editor.clone())
2208                                .child(
2209                                    h_flex()
2210                                        .gap_1()
2211                                        .justify_end()
2212                                        .child(
2213                                            Button::new("dismiss-feedback-message", "Cancel")
2214                                                .label_size(LabelSize::Small)
2215                                                .key_binding(
2216                                                    KeyBinding::for_action_in(
2217                                                        &menu::Cancel,
2218                                                        &focus_handle,
2219                                                        window,
2220                                                        cx,
2221                                                    )
2222                                                    .map(|kb| kb.size(rems_from_px(10.))),
2223                                                )
2224                                                .on_click(cx.listener(
2225                                                    move |this, _, _window, cx| {
2226                                                        this.open_feedback_editors
2227                                                            .remove(&message_id);
2228                                                        cx.notify();
2229                                                    },
2230                                                )),
2231                                        )
2232                                        .child(
2233                                            Button::new(
2234                                                "submit-feedback-message",
2235                                                "Share Feedback",
2236                                            )
2237                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2238                                            .label_size(LabelSize::Small)
2239                                            .key_binding(
2240                                                KeyBinding::for_action_in(
2241                                                    &menu::Confirm,
2242                                                    &focus_handle,
2243                                                    window,
2244                                                    cx,
2245                                                )
2246                                                .map(|kb| kb.size(rems_from_px(10.))),
2247                                            )
2248                                            .on_click(
2249                                                cx.listener(move |this, _, _window, cx| {
2250                                                    this.submit_feedback_message(message_id, cx);
2251                                                    cx.notify()
2252                                                }),
2253                                            ),
2254                                        ),
2255                                ),
2256                        )
2257                    },
2258                )
2259            })
2260            .when(after_editing_message, |parent| {
2261                // Backdrop to dim out the whole thread below the editing user message
2262                parent.relative().child(backdrop)
2263            })
2264            .into_any()
2265    }
2266
2267    fn render_message_content(
2268        &self,
2269        message_id: MessageId,
2270        rendered_message: &RenderedMessage,
2271        has_tool_uses: bool,
2272        workspace: WeakEntity<Workspace>,
2273        window: &Window,
2274        cx: &Context<Self>,
2275    ) -> impl IntoElement {
2276        let is_last_message = self.messages.last() == Some(&message_id);
2277        let is_generating = self.thread.read(cx).is_generating();
2278        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2279            rendered_message
2280                .segments
2281                .iter()
2282                .enumerate()
2283                .next_back()
2284                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2285                .map(|(index, _)| index)
2286        } else {
2287            None
2288        };
2289
2290        let message_role = self
2291            .thread
2292            .read(cx)
2293            .message(message_id)
2294            .map(|m| m.role)
2295            .unwrap_or(Role::User);
2296
2297        let is_assistant_message = message_role == Role::Assistant;
2298        let is_user_message = message_role == Role::User;
2299
2300        v_flex()
2301            .text_ui(cx)
2302            .gap_2()
2303            .when(is_user_message, |this| this.text_xs())
2304            .children(
2305                rendered_message.segments.iter().enumerate().map(
2306                    |(index, segment)| match segment {
2307                        RenderedMessageSegment::Thinking {
2308                            content,
2309                            scroll_handle,
2310                        } => self
2311                            .render_message_thinking_segment(
2312                                message_id,
2313                                index,
2314                                content.clone(),
2315                                &scroll_handle,
2316                                Some(index) == pending_thinking_segment_index,
2317                                window,
2318                                cx,
2319                            )
2320                            .into_any_element(),
2321                        RenderedMessageSegment::Text(markdown) => {
2322                            let markdown_element = MarkdownElement::new(
2323                                markdown.clone(),
2324                                if is_user_message {
2325                                    let mut style = default_markdown_style(window, cx);
2326                                    let mut text_style = window.text_style();
2327                                    let theme_settings = ThemeSettings::get_global(cx);
2328
2329                                    let buffer_font = theme_settings.buffer_font.family.clone();
2330                                    let buffer_font_size = TextSize::Small.rems(cx);
2331
2332                                    text_style.refine(&TextStyleRefinement {
2333                                        font_family: Some(buffer_font),
2334                                        font_size: Some(buffer_font_size.into()),
2335                                        ..Default::default()
2336                                    });
2337
2338                                    style.base_text_style = text_style;
2339                                    style
2340                                } else {
2341                                    default_markdown_style(window, cx)
2342                                },
2343                            );
2344
2345                            let markdown_element = if is_assistant_message {
2346                                markdown_element.code_block_renderer(
2347                                    markdown::CodeBlockRenderer::Custom {
2348                                        render: Arc::new({
2349                                            let workspace = workspace.clone();
2350                                            let active_thread = cx.entity();
2351                                            move |kind,
2352                                                  parsed_markdown,
2353                                                  range,
2354                                                  metadata,
2355                                                  window,
2356                                                  cx| {
2357                                                render_markdown_code_block(
2358                                                    message_id,
2359                                                    range.start,
2360                                                    kind,
2361                                                    parsed_markdown,
2362                                                    metadata,
2363                                                    active_thread.clone(),
2364                                                    workspace.clone(),
2365                                                    window,
2366                                                    cx,
2367                                                )
2368                                            }
2369                                        }),
2370                                        transform: Some(Arc::new({
2371                                            let active_thread = cx.entity();
2372                                            let editor_bg = cx.theme().colors().editor_background;
2373
2374                                            move |el, range, metadata, _, cx| {
2375                                                let can_expand = metadata.line_count
2376                                                    >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
2377
2378                                                if !can_expand {
2379                                                    return el;
2380                                                }
2381
2382                                                let is_expanded = active_thread
2383                                                    .read(cx)
2384                                                    .is_codeblock_expanded(message_id, range.start);
2385
2386                                                if is_expanded {
2387                                                    return el;
2388                                                }
2389
2390                                                el.child(
2391                                                    div()
2392                                                        .absolute()
2393                                                        .bottom_0()
2394                                                        .left_0()
2395                                                        .w_full()
2396                                                        .h_1_4()
2397                                                        .rounded_b_lg()
2398                                                        .bg(linear_gradient(
2399                                                            0.,
2400                                                            linear_color_stop(editor_bg, 0.),
2401                                                            linear_color_stop(
2402                                                                editor_bg.opacity(0.),
2403                                                                1.,
2404                                                            ),
2405                                                        )),
2406                                                )
2407                                            }
2408                                        })),
2409                                    },
2410                                )
2411                            } else {
2412                                markdown_element.code_block_renderer(
2413                                    markdown::CodeBlockRenderer::Default {
2414                                        copy_button: false,
2415                                        copy_button_on_hover: false,
2416                                        border: true,
2417                                    },
2418                                )
2419                            };
2420
2421                            div()
2422                                .child(markdown_element.on_url_click({
2423                                    let workspace = self.workspace.clone();
2424                                    move |text, window, cx| {
2425                                        open_markdown_link(text, workspace.clone(), window, cx);
2426                                    }
2427                                }))
2428                                .into_any_element()
2429                        }
2430                    },
2431                ),
2432            )
2433    }
2434
2435    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2436        cx.theme().colors().border.opacity(0.5)
2437    }
2438
2439    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2440        cx.theme()
2441            .colors()
2442            .element_background
2443            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2444    }
2445
2446    fn render_message_thinking_segment(
2447        &self,
2448        message_id: MessageId,
2449        ix: usize,
2450        markdown: Entity<Markdown>,
2451        scroll_handle: &ScrollHandle,
2452        pending: bool,
2453        window: &Window,
2454        cx: &Context<Self>,
2455    ) -> impl IntoElement {
2456        let is_open = self
2457            .expanded_thinking_segments
2458            .get(&(message_id, ix))
2459            .copied()
2460            .unwrap_or_default();
2461
2462        let editor_bg = cx.theme().colors().panel_background;
2463
2464        div().map(|this| {
2465            if pending {
2466                this.v_flex()
2467                    .mt_neg_2()
2468                    .mb_1p5()
2469                    .child(
2470                        h_flex()
2471                            .group("disclosure-header")
2472                            .justify_between()
2473                            .child(
2474                                h_flex()
2475                                    .gap_1p5()
2476                                    .child(
2477                                        Icon::new(IconName::LightBulb)
2478                                            .size(IconSize::XSmall)
2479                                            .color(Color::Muted),
2480                                    )
2481                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2482                            )
2483                            .child(
2484                                h_flex()
2485                                    .gap_1()
2486                                    .child(
2487                                        div().visible_on_hover("disclosure-header").child(
2488                                            Disclosure::new("thinking-disclosure", is_open)
2489                                                .opened_icon(IconName::ChevronUp)
2490                                                .closed_icon(IconName::ChevronDown)
2491                                                .on_click(cx.listener({
2492                                                    move |this, _event, _window, _cx| {
2493                                                        let is_open = this
2494                                                            .expanded_thinking_segments
2495                                                            .entry((message_id, ix))
2496                                                            .or_insert(false);
2497
2498                                                        *is_open = !*is_open;
2499                                                    }
2500                                                })),
2501                                        ),
2502                                    )
2503                                    .child({
2504                                        Icon::new(IconName::ArrowCircle)
2505                                            .color(Color::Accent)
2506                                            .size(IconSize::Small)
2507                                            .with_animation(
2508                                                "arrow-circle",
2509                                                Animation::new(Duration::from_secs(2)).repeat(),
2510                                                |icon, delta| {
2511                                                    icon.transform(Transformation::rotate(
2512                                                        percentage(delta),
2513                                                    ))
2514                                                },
2515                                            )
2516                                    }),
2517                            ),
2518                    )
2519                    .when(!is_open, |this| {
2520                        let gradient_overlay = div()
2521                            .rounded_b_lg()
2522                            .h_full()
2523                            .absolute()
2524                            .w_full()
2525                            .bottom_0()
2526                            .left_0()
2527                            .bg(linear_gradient(
2528                                180.,
2529                                linear_color_stop(editor_bg, 1.),
2530                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2531                            ));
2532
2533                        this.child(
2534                            div()
2535                                .relative()
2536                                .bg(editor_bg)
2537                                .rounded_b_lg()
2538                                .mt_2()
2539                                .pl_4()
2540                                .child(
2541                                    div()
2542                                        .id(("thinking-content", ix))
2543                                        .max_h_20()
2544                                        .track_scroll(scroll_handle)
2545                                        .text_ui_sm(cx)
2546                                        .overflow_hidden()
2547                                        .child(
2548                                            MarkdownElement::new(
2549                                                markdown.clone(),
2550                                                default_markdown_style(window, cx),
2551                                            )
2552                                            .on_url_click({
2553                                                let workspace = self.workspace.clone();
2554                                                move |text, window, cx| {
2555                                                    open_markdown_link(
2556                                                        text,
2557                                                        workspace.clone(),
2558                                                        window,
2559                                                        cx,
2560                                                    );
2561                                                }
2562                                            }),
2563                                        ),
2564                                )
2565                                .child(gradient_overlay),
2566                        )
2567                    })
2568                    .when(is_open, |this| {
2569                        this.child(
2570                            div()
2571                                .id(("thinking-content", ix))
2572                                .h_full()
2573                                .bg(editor_bg)
2574                                .text_ui_sm(cx)
2575                                .child(
2576                                    MarkdownElement::new(
2577                                        markdown.clone(),
2578                                        default_markdown_style(window, cx),
2579                                    )
2580                                    .on_url_click({
2581                                        let workspace = self.workspace.clone();
2582                                        move |text, window, cx| {
2583                                            open_markdown_link(text, workspace.clone(), window, cx);
2584                                        }
2585                                    }),
2586                                ),
2587                        )
2588                    })
2589            } else {
2590                this.v_flex()
2591                    .mt_neg_2()
2592                    .child(
2593                        h_flex()
2594                            .group("disclosure-header")
2595                            .pr_1()
2596                            .justify_between()
2597                            .opacity(0.8)
2598                            .hover(|style| style.opacity(1.))
2599                            .child(
2600                                h_flex()
2601                                    .gap_1p5()
2602                                    .child(
2603                                        Icon::new(IconName::LightBulb)
2604                                            .size(IconSize::XSmall)
2605                                            .color(Color::Muted),
2606                                    )
2607                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2608                            )
2609                            .child(
2610                                div().visible_on_hover("disclosure-header").child(
2611                                    Disclosure::new("thinking-disclosure", is_open)
2612                                        .opened_icon(IconName::ChevronUp)
2613                                        .closed_icon(IconName::ChevronDown)
2614                                        .on_click(cx.listener({
2615                                            move |this, _event, _window, _cx| {
2616                                                let is_open = this
2617                                                    .expanded_thinking_segments
2618                                                    .entry((message_id, ix))
2619                                                    .or_insert(false);
2620
2621                                                *is_open = !*is_open;
2622                                            }
2623                                        })),
2624                                ),
2625                            ),
2626                    )
2627                    .child(
2628                        div()
2629                            .id(("thinking-content", ix))
2630                            .relative()
2631                            .mt_1p5()
2632                            .ml_1p5()
2633                            .pl_2p5()
2634                            .border_l_1()
2635                            .border_color(cx.theme().colors().border_variant)
2636                            .text_ui_sm(cx)
2637                            .when(is_open, |this| {
2638                                this.child(
2639                                    MarkdownElement::new(
2640                                        markdown.clone(),
2641                                        default_markdown_style(window, cx),
2642                                    )
2643                                    .on_url_click({
2644                                        let workspace = self.workspace.clone();
2645                                        move |text, window, cx| {
2646                                            open_markdown_link(text, workspace.clone(), window, cx);
2647                                        }
2648                                    }),
2649                                )
2650                            }),
2651                    )
2652            }
2653        })
2654    }
2655
2656    fn render_tool_use(
2657        &self,
2658        tool_use: ToolUse,
2659        window: &mut Window,
2660        workspace: WeakEntity<Workspace>,
2661        cx: &mut Context<Self>,
2662    ) -> impl IntoElement + use<> {
2663        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2664            return card.render(&tool_use.status, window, workspace, cx);
2665        }
2666
2667        let is_open = self
2668            .expanded_tool_uses
2669            .get(&tool_use.id)
2670            .copied()
2671            .unwrap_or_default();
2672
2673        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2674
2675        let fs = self
2676            .workspace
2677            .upgrade()
2678            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2679        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2680        let needs_confirmation_tools = tool_use.needs_confirmation;
2681
2682        let status_icons = div().child(match &tool_use.status {
2683            ToolUseStatus::NeedsConfirmation => {
2684                let icon = Icon::new(IconName::Warning)
2685                    .color(Color::Warning)
2686                    .size(IconSize::Small);
2687                icon.into_any_element()
2688            }
2689            ToolUseStatus::Pending
2690            | ToolUseStatus::InputStillStreaming
2691            | ToolUseStatus::Running => {
2692                let icon = Icon::new(IconName::ArrowCircle)
2693                    .color(Color::Accent)
2694                    .size(IconSize::Small);
2695                icon.with_animation(
2696                    "arrow-circle",
2697                    Animation::new(Duration::from_secs(2)).repeat(),
2698                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2699                )
2700                .into_any_element()
2701            }
2702            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2703            ToolUseStatus::Error(_) => {
2704                let icon = Icon::new(IconName::Close)
2705                    .color(Color::Error)
2706                    .size(IconSize::Small);
2707                icon.into_any_element()
2708            }
2709        });
2710
2711        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2712        let results_content_container = || v_flex().p_2().gap_0p5();
2713
2714        let results_content = v_flex()
2715            .gap_1()
2716            .child(
2717                results_content_container()
2718                    .child(
2719                        Label::new("Input")
2720                            .size(LabelSize::XSmall)
2721                            .color(Color::Muted)
2722                            .buffer_font(cx),
2723                    )
2724                    .child(
2725                        div()
2726                            .w_full()
2727                            .text_ui_sm(cx)
2728                            .children(rendered_tool_use.as_ref().map(|rendered| {
2729                                MarkdownElement::new(
2730                                    rendered.input.clone(),
2731                                    tool_use_markdown_style(window, cx),
2732                                )
2733                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2734                                    copy_button: false,
2735                                    copy_button_on_hover: false,
2736                                    border: false,
2737                                })
2738                                .on_url_click({
2739                                    let workspace = self.workspace.clone();
2740                                    move |text, window, cx| {
2741                                        open_markdown_link(text, workspace.clone(), window, cx);
2742                                    }
2743                                })
2744                            })),
2745                    ),
2746            )
2747            .map(|container| match tool_use.status {
2748                ToolUseStatus::Finished(_) => container.child(
2749                    results_content_container()
2750                        .border_t_1()
2751                        .border_color(self.tool_card_border_color(cx))
2752                        .child(
2753                            Label::new("Result")
2754                                .size(LabelSize::XSmall)
2755                                .color(Color::Muted)
2756                                .buffer_font(cx),
2757                        )
2758                        .child(div().w_full().text_ui_sm(cx).children(
2759                            rendered_tool_use.as_ref().map(|rendered| {
2760                                MarkdownElement::new(
2761                                    rendered.output.clone(),
2762                                    tool_use_markdown_style(window, cx),
2763                                )
2764                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2765                                    copy_button: false,
2766                                    copy_button_on_hover: false,
2767                                    border: false,
2768                                })
2769                                .on_url_click({
2770                                    let workspace = self.workspace.clone();
2771                                    move |text, window, cx| {
2772                                        open_markdown_link(text, workspace.clone(), window, cx);
2773                                    }
2774                                })
2775                                .into_any_element()
2776                            }),
2777                        )),
2778                ),
2779                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2780                    results_content_container()
2781                        .border_t_1()
2782                        .border_color(self.tool_card_border_color(cx))
2783                        .child(
2784                            h_flex()
2785                                .gap_1()
2786                                .child(
2787                                    Icon::new(IconName::ArrowCircle)
2788                                        .size(IconSize::Small)
2789                                        .color(Color::Accent)
2790                                        .with_animation(
2791                                            "arrow-circle",
2792                                            Animation::new(Duration::from_secs(2)).repeat(),
2793                                            |icon, delta| {
2794                                                icon.transform(Transformation::rotate(percentage(
2795                                                    delta,
2796                                                )))
2797                                            },
2798                                        ),
2799                                )
2800                                .child(
2801                                    Label::new("Running…")
2802                                        .size(LabelSize::XSmall)
2803                                        .color(Color::Muted)
2804                                        .buffer_font(cx),
2805                                ),
2806                        ),
2807                ),
2808                ToolUseStatus::Error(_) => container.child(
2809                    results_content_container()
2810                        .border_t_1()
2811                        .border_color(self.tool_card_border_color(cx))
2812                        .child(
2813                            Label::new("Error")
2814                                .size(LabelSize::XSmall)
2815                                .color(Color::Muted)
2816                                .buffer_font(cx),
2817                        )
2818                        .child(
2819                            div()
2820                                .text_ui_sm(cx)
2821                                .children(rendered_tool_use.as_ref().map(|rendered| {
2822                                    MarkdownElement::new(
2823                                        rendered.output.clone(),
2824                                        tool_use_markdown_style(window, cx),
2825                                    )
2826                                    .on_url_click({
2827                                        let workspace = self.workspace.clone();
2828                                        move |text, window, cx| {
2829                                            open_markdown_link(text, workspace.clone(), window, cx);
2830                                        }
2831                                    })
2832                                    .into_any_element()
2833                                })),
2834                        ),
2835                ),
2836                ToolUseStatus::Pending => container,
2837                ToolUseStatus::NeedsConfirmation => container.child(
2838                    results_content_container()
2839                        .border_t_1()
2840                        .border_color(self.tool_card_border_color(cx))
2841                        .child(
2842                            Label::new("Asking Permission")
2843                                .size(LabelSize::Small)
2844                                .color(Color::Muted)
2845                                .buffer_font(cx),
2846                        ),
2847                ),
2848            });
2849
2850        let gradient_overlay = |color: Hsla| {
2851            div()
2852                .h_full()
2853                .absolute()
2854                .w_12()
2855                .bottom_0()
2856                .map(|element| {
2857                    if is_status_finished {
2858                        element.right_6()
2859                    } else {
2860                        element.right(px(44.))
2861                    }
2862                })
2863                .bg(linear_gradient(
2864                    90.,
2865                    linear_color_stop(color, 1.),
2866                    linear_color_stop(color.opacity(0.2), 0.),
2867                ))
2868        };
2869
2870        v_flex().gap_1().mb_2().map(|element| {
2871            if !needs_confirmation_tools {
2872                element.child(
2873                    v_flex()
2874                        .child(
2875                            h_flex()
2876                                .group("disclosure-header")
2877                                .relative()
2878                                .gap_1p5()
2879                                .justify_between()
2880                                .opacity(0.8)
2881                                .hover(|style| style.opacity(1.))
2882                                .when(!is_status_finished, |this| this.pr_2())
2883                                .child(
2884                                    h_flex()
2885                                        .id("tool-label-container")
2886                                        .gap_1p5()
2887                                        .max_w_full()
2888                                        .overflow_x_scroll()
2889                                        .child(
2890                                            Icon::new(tool_use.icon)
2891                                                .size(IconSize::XSmall)
2892                                                .color(Color::Muted),
2893                                        )
2894                                        .child(
2895                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2896                                                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| {
2897                                                    open_markdown_link(text, workspace.clone(), window, cx);
2898                                                }}))
2899                                            ),
2900                                        ),
2901                                )
2902                                .child(
2903                                    h_flex()
2904                                        .gap_1()
2905                                        .child(
2906                                            div().visible_on_hover("disclosure-header").child(
2907                                                Disclosure::new("tool-use-disclosure", is_open)
2908                                                    .opened_icon(IconName::ChevronUp)
2909                                                    .closed_icon(IconName::ChevronDown)
2910                                                    .on_click(cx.listener({
2911                                                        let tool_use_id = tool_use.id.clone();
2912                                                        move |this, _event, _window, _cx| {
2913                                                            let is_open = this
2914                                                                .expanded_tool_uses
2915                                                                .entry(tool_use_id.clone())
2916                                                                .or_insert(false);
2917
2918                                                            *is_open = !*is_open;
2919                                                        }
2920                                                    })),
2921                                            ),
2922                                        )
2923                                        .child(status_icons),
2924                                )
2925                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2926                        )
2927                        .map(|parent| {
2928                            if !is_open {
2929                                return parent;
2930                            }
2931
2932                            parent.child(
2933                                v_flex()
2934                                    .mt_1()
2935                                    .border_1()
2936                                    .border_color(self.tool_card_border_color(cx))
2937                                    .bg(cx.theme().colors().editor_background)
2938                                    .rounded_lg()
2939                                    .child(results_content),
2940                            )
2941                        }),
2942                )
2943            } else {
2944                v_flex()
2945                    .mb_2()
2946                    .rounded_lg()
2947                    .border_1()
2948                    .border_color(self.tool_card_border_color(cx))
2949                    .overflow_hidden()
2950                    .child(
2951                        h_flex()
2952                            .group("disclosure-header")
2953                            .relative()
2954                            .justify_between()
2955                            .py_1()
2956                            .map(|element| {
2957                                if is_status_finished {
2958                                    element.pl_2().pr_0p5()
2959                                } else {
2960                                    element.px_2()
2961                                }
2962                            })
2963                            .bg(self.tool_card_header_bg(cx))
2964                            .map(|element| {
2965                                if is_open {
2966                                    element.border_b_1().rounded_t_md()
2967                                } else if needs_confirmation {
2968                                    element.rounded_t_md()
2969                                } else {
2970                                    element.rounded_md()
2971                                }
2972                            })
2973                            .border_color(self.tool_card_border_color(cx))
2974                            .child(
2975                                h_flex()
2976                                    .id("tool-label-container")
2977                                    .gap_1p5()
2978                                    .max_w_full()
2979                                    .overflow_x_scroll()
2980                                    .child(
2981                                        Icon::new(tool_use.icon)
2982                                            .size(IconSize::XSmall)
2983                                            .color(Color::Muted),
2984                                    )
2985                                    .child(
2986                                        h_flex().pr_8().text_ui_sm(cx).children(
2987                                            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| {
2988                                                open_markdown_link(text, workspace.clone(), window, cx);
2989                                            }}))
2990                                        ),
2991                                    ),
2992                            )
2993                            .child(
2994                                h_flex()
2995                                    .gap_1()
2996                                    .child(
2997                                        div().visible_on_hover("disclosure-header").child(
2998                                            Disclosure::new("tool-use-disclosure", is_open)
2999                                                .opened_icon(IconName::ChevronUp)
3000                                                .closed_icon(IconName::ChevronDown)
3001                                                .on_click(cx.listener({
3002                                                    let tool_use_id = tool_use.id.clone();
3003                                                    move |this, _event, _window, _cx| {
3004                                                        let is_open = this
3005                                                            .expanded_tool_uses
3006                                                            .entry(tool_use_id.clone())
3007                                                            .or_insert(false);
3008
3009                                                        *is_open = !*is_open;
3010                                                    }
3011                                                })),
3012                                        ),
3013                                    )
3014                                    .child(status_icons),
3015                            )
3016                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3017                    )
3018                    .map(|parent| {
3019                        if !is_open {
3020                            return parent;
3021                        }
3022
3023                        parent.child(
3024                            v_flex()
3025                                .bg(cx.theme().colors().editor_background)
3026                                .map(|element| {
3027                                    if  needs_confirmation {
3028                                        element.rounded_none()
3029                                    } else {
3030                                        element.rounded_b_lg()
3031                                    }
3032                                })
3033                                .child(results_content),
3034                        )
3035                    })
3036                    .when(needs_confirmation, |this| {
3037                        this.child(
3038                            h_flex()
3039                                .py_1()
3040                                .pl_2()
3041                                .pr_1()
3042                                .gap_1()
3043                                .justify_between()
3044                                .bg(cx.theme().colors().editor_background)
3045                                .border_t_1()
3046                                .border_color(self.tool_card_border_color(cx))
3047                                .rounded_b_lg()
3048                                .child(
3049                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3050                                )
3051                                .child(
3052                                    h_flex()
3053                                        .gap_0p5()
3054                                        .child({
3055                                            let tool_id = tool_use.id.clone();
3056                                            Button::new(
3057                                                "always-allow-tool-action",
3058                                                "Always Allow",
3059                                            )
3060                                            .label_size(LabelSize::Small)
3061                                            .icon(IconName::CheckDouble)
3062                                            .icon_position(IconPosition::Start)
3063                                            .icon_size(IconSize::Small)
3064                                            .icon_color(Color::Success)
3065                                            .tooltip(move |window, cx|  {
3066                                                Tooltip::with_meta(
3067                                                    "Never ask for permission",
3068                                                    None,
3069                                                    "Restore the original behavior in your Agent Panel settings",
3070                                                    window,
3071                                                    cx,
3072                                                )
3073                                            })
3074                                            .on_click(cx.listener(
3075                                                move |this, event, window, cx| {
3076                                                    if let Some(fs) = fs.clone() {
3077                                                        update_settings_file::<AssistantSettings>(
3078                                                            fs.clone(),
3079                                                            cx,
3080                                                            |settings, _| {
3081                                                                settings.set_always_allow_tool_actions(true);
3082                                                            },
3083                                                        );
3084                                                    }
3085                                                    this.handle_allow_tool(
3086                                                        tool_id.clone(),
3087                                                        event,
3088                                                        window,
3089                                                        cx,
3090                                                    )
3091                                                },
3092                                            ))
3093                                        })
3094                                        .child(ui::Divider::vertical())
3095                                        .child({
3096                                            let tool_id = tool_use.id.clone();
3097                                            Button::new("allow-tool-action", "Allow")
3098                                                .label_size(LabelSize::Small)
3099                                                .icon(IconName::Check)
3100                                                .icon_position(IconPosition::Start)
3101                                                .icon_size(IconSize::Small)
3102                                                .icon_color(Color::Success)
3103                                                .on_click(cx.listener(
3104                                                    move |this, event, window, cx| {
3105                                                        this.handle_allow_tool(
3106                                                            tool_id.clone(),
3107                                                            event,
3108                                                            window,
3109                                                            cx,
3110                                                        )
3111                                                    },
3112                                                ))
3113                                        })
3114                                        .child({
3115                                            let tool_id = tool_use.id.clone();
3116                                            let tool_name: Arc<str> = tool_use.name.into();
3117                                            Button::new("deny-tool", "Deny")
3118                                                .label_size(LabelSize::Small)
3119                                                .icon(IconName::Close)
3120                                                .icon_position(IconPosition::Start)
3121                                                .icon_size(IconSize::Small)
3122                                                .icon_color(Color::Error)
3123                                                .on_click(cx.listener(
3124                                                    move |this, event, window, cx| {
3125                                                        this.handle_deny_tool(
3126                                                            tool_id.clone(),
3127                                                            tool_name.clone(),
3128                                                            event,
3129                                                            window,
3130                                                            cx,
3131                                                        )
3132                                                    },
3133                                                ))
3134                                        }),
3135                                ),
3136                        )
3137                    })
3138            }
3139        }).into_any_element()
3140    }
3141
3142    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3143        let project_context = self.thread.read(cx).project_context();
3144        let project_context = project_context.borrow();
3145        let Some(project_context) = project_context.as_ref() else {
3146            return div().into_any();
3147        };
3148
3149        let user_rules_text = if project_context.user_rules.is_empty() {
3150            None
3151        } else if project_context.user_rules.len() == 1 {
3152            let user_rules = &project_context.user_rules[0];
3153
3154            match user_rules.title.as_ref() {
3155                Some(title) => Some(format!("Using \"{title}\" user rule")),
3156                None => Some("Using user rule".into()),
3157            }
3158        } else {
3159            Some(format!(
3160                "Using {} user rules",
3161                project_context.user_rules.len()
3162            ))
3163        };
3164
3165        let first_user_rules_id = project_context
3166            .user_rules
3167            .first()
3168            .map(|user_rules| user_rules.uuid.0);
3169
3170        let rules_files = project_context
3171            .worktrees
3172            .iter()
3173            .filter_map(|worktree| worktree.rules_file.as_ref())
3174            .collect::<Vec<_>>();
3175
3176        let rules_file_text = match rules_files.as_slice() {
3177            &[] => None,
3178            &[rules_file] => Some(format!(
3179                "Using project {:?} file",
3180                rules_file.path_in_worktree
3181            )),
3182            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3183        };
3184
3185        if user_rules_text.is_none() && rules_file_text.is_none() {
3186            return div().into_any();
3187        }
3188
3189        v_flex()
3190            .pt_2()
3191            .px_2p5()
3192            .gap_1()
3193            .when_some(user_rules_text, |parent, user_rules_text| {
3194                parent.child(
3195                    h_flex()
3196                        .w_full()
3197                        .child(
3198                            Icon::new(RULES_ICON)
3199                                .size(IconSize::XSmall)
3200                                .color(Color::Disabled),
3201                        )
3202                        .child(
3203                            Label::new(user_rules_text)
3204                                .size(LabelSize::XSmall)
3205                                .color(Color::Muted)
3206                                .truncate()
3207                                .buffer_font(cx)
3208                                .ml_1p5()
3209                                .mr_0p5(),
3210                        )
3211                        .child(
3212                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3213                                .shape(ui::IconButtonShape::Square)
3214                                .icon_size(IconSize::XSmall)
3215                                .icon_color(Color::Ignored)
3216                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3217                                .tooltip(Tooltip::text("View User Rules"))
3218                                .on_click(move |_event, window, cx| {
3219                                    window.dispatch_action(
3220                                        Box::new(OpenRulesLibrary {
3221                                            prompt_to_select: first_user_rules_id,
3222                                        }),
3223                                        cx,
3224                                    )
3225                                }),
3226                        ),
3227                )
3228            })
3229            .when_some(rules_file_text, |parent, rules_file_text| {
3230                parent.child(
3231                    h_flex()
3232                        .w_full()
3233                        .child(
3234                            Icon::new(IconName::File)
3235                                .size(IconSize::XSmall)
3236                                .color(Color::Disabled),
3237                        )
3238                        .child(
3239                            Label::new(rules_file_text)
3240                                .size(LabelSize::XSmall)
3241                                .color(Color::Muted)
3242                                .buffer_font(cx)
3243                                .ml_1p5()
3244                                .mr_0p5(),
3245                        )
3246                        .child(
3247                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3248                                .shape(ui::IconButtonShape::Square)
3249                                .icon_size(IconSize::XSmall)
3250                                .icon_color(Color::Ignored)
3251                                .on_click(cx.listener(Self::handle_open_rules))
3252                                .tooltip(Tooltip::text("View Rules")),
3253                        ),
3254                )
3255            })
3256            .into_any()
3257    }
3258
3259    fn handle_allow_tool(
3260        &mut self,
3261        tool_use_id: LanguageModelToolUseId,
3262        _: &ClickEvent,
3263        window: &mut Window,
3264        cx: &mut Context<Self>,
3265    ) {
3266        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3267            .thread
3268            .read(cx)
3269            .pending_tool(&tool_use_id)
3270            .map(|tool_use| tool_use.status.clone())
3271        {
3272            self.thread.update(cx, |thread, cx| {
3273                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3274                    thread.run_tool(
3275                        c.tool_use_id.clone(),
3276                        c.ui_text.clone(),
3277                        c.input.clone(),
3278                        c.request.clone(),
3279                        c.tool.clone(),
3280                        configured.model,
3281                        Some(window.window_handle()),
3282                        cx,
3283                    );
3284                }
3285            });
3286        }
3287    }
3288
3289    fn handle_deny_tool(
3290        &mut self,
3291        tool_use_id: LanguageModelToolUseId,
3292        tool_name: Arc<str>,
3293        _: &ClickEvent,
3294        window: &mut Window,
3295        cx: &mut Context<Self>,
3296    ) {
3297        let window_handle = window.window_handle();
3298        self.thread.update(cx, |thread, cx| {
3299            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3300        });
3301    }
3302
3303    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3304        let project_context = self.thread.read(cx).project_context();
3305        let project_context = project_context.borrow();
3306        let Some(project_context) = project_context.as_ref() else {
3307            return;
3308        };
3309
3310        let project_entry_ids = project_context
3311            .worktrees
3312            .iter()
3313            .flat_map(|worktree| worktree.rules_file.as_ref())
3314            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3315            .collect::<Vec<_>>();
3316
3317        self.workspace
3318            .update(cx, move |workspace, cx| {
3319                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3320                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3321                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3322                let project = workspace.project().read(cx);
3323                let project_paths = project_entry_ids
3324                    .into_iter()
3325                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3326                    .collect::<Vec<_>>();
3327                for project_path in project_paths {
3328                    workspace
3329                        .open_path(project_path, None, true, window, cx)
3330                        .detach_and_log_err(cx);
3331                }
3332            })
3333            .ok();
3334    }
3335
3336    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3337        for window in self.notifications.drain(..) {
3338            window
3339                .update(cx, |_, window, _| {
3340                    window.remove_window();
3341                })
3342                .ok();
3343
3344            self.notification_subscriptions.remove(&window);
3345        }
3346    }
3347
3348    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3349        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3350            return None;
3351        }
3352
3353        Some(
3354            div()
3355                .occlude()
3356                .id("active-thread-scrollbar")
3357                .on_mouse_move(cx.listener(|_, _, _, cx| {
3358                    cx.notify();
3359                    cx.stop_propagation()
3360                }))
3361                .on_hover(|_, _, cx| {
3362                    cx.stop_propagation();
3363                })
3364                .on_any_mouse_down(|_, _, cx| {
3365                    cx.stop_propagation();
3366                })
3367                .on_mouse_up(
3368                    MouseButton::Left,
3369                    cx.listener(|_, _, _, cx| {
3370                        cx.stop_propagation();
3371                    }),
3372                )
3373                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3374                    cx.notify();
3375                }))
3376                .h_full()
3377                .absolute()
3378                .right_1()
3379                .top_1()
3380                .bottom_0()
3381                .w(px(12.))
3382                .cursor_default()
3383                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3384        )
3385    }
3386
3387    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3388        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3389        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3390            cx.background_executor()
3391                .timer(SCROLLBAR_SHOW_INTERVAL)
3392                .await;
3393            thread
3394                .update(cx, |thread, cx| {
3395                    if !thread.scrollbar_state.is_dragging() {
3396                        thread.show_scrollbar = false;
3397                        cx.notify();
3398                    }
3399                })
3400                .log_err();
3401        }))
3402    }
3403
3404    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3405        self.expanded_code_blocks
3406            .get(&(message_id, ix))
3407            .copied()
3408            .unwrap_or(true)
3409    }
3410
3411    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3412        let is_expanded = self
3413            .expanded_code_blocks
3414            .entry((message_id, ix))
3415            .or_insert(true);
3416        *is_expanded = !*is_expanded;
3417    }
3418
3419    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3420        self.list_state.reset(self.messages.len());
3421        cx.notify();
3422    }
3423}
3424
3425pub enum ActiveThreadEvent {
3426    EditingMessageTokenCountChanged,
3427}
3428
3429impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3430
3431impl Render for ActiveThread {
3432    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3433        v_flex()
3434            .size_full()
3435            .relative()
3436            .bg(cx.theme().colors().panel_background)
3437            .on_mouse_move(cx.listener(|this, _, _, cx| {
3438                this.show_scrollbar = true;
3439                this.hide_scrollbar_later(cx);
3440                cx.notify();
3441            }))
3442            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3443                this.show_scrollbar = true;
3444                this.hide_scrollbar_later(cx);
3445                cx.notify();
3446            }))
3447            .on_mouse_up(
3448                MouseButton::Left,
3449                cx.listener(|this, _, _, cx| {
3450                    this.hide_scrollbar_later(cx);
3451                }),
3452            )
3453            .child(list(self.list_state.clone()).flex_grow())
3454            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3455                this.child(scrollbar)
3456            })
3457    }
3458}
3459
3460pub(crate) fn open_active_thread_as_markdown(
3461    thread: Entity<Thread>,
3462    workspace: Entity<Workspace>,
3463    window: &mut Window,
3464    cx: &mut App,
3465) -> Task<anyhow::Result<()>> {
3466    let markdown_language_task = workspace
3467        .read(cx)
3468        .app_state()
3469        .languages
3470        .language_for_name("Markdown");
3471
3472    window.spawn(cx, async move |cx| {
3473        let markdown_language = markdown_language_task.await?;
3474
3475        workspace.update_in(cx, |workspace, window, cx| {
3476            let thread = thread.read(cx);
3477            let markdown = thread.to_markdown(cx)?;
3478            let thread_summary = thread.summary().or_default().to_string();
3479
3480            let project = workspace.project().clone();
3481
3482            if !project.read(cx).is_local() {
3483                anyhow::bail!("failed to open active thread as markdown in remote project");
3484            }
3485
3486            let buffer = project.update(cx, |project, cx| {
3487                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3488            });
3489            let buffer =
3490                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3491
3492            workspace.add_item_to_active_pane(
3493                Box::new(cx.new(|cx| {
3494                    let mut editor =
3495                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3496                    editor.set_breadcrumb_header(thread_summary);
3497                    editor
3498                })),
3499                None,
3500                true,
3501                window,
3502                cx,
3503            );
3504
3505            anyhow::Ok(())
3506        })??;
3507        anyhow::Ok(())
3508    })
3509}
3510
3511pub(crate) fn open_context(
3512    context: &AgentContextHandle,
3513    workspace: Entity<Workspace>,
3514    window: &mut Window,
3515    cx: &mut App,
3516) {
3517    match context {
3518        AgentContextHandle::File(file_context) => {
3519            if let Some(project_path) = file_context.project_path(cx) {
3520                workspace.update(cx, |workspace, cx| {
3521                    workspace
3522                        .open_path(project_path, None, true, window, cx)
3523                        .detach_and_log_err(cx);
3524                });
3525            }
3526        }
3527
3528        AgentContextHandle::Directory(directory_context) => {
3529            let entry_id = directory_context.entry_id;
3530            workspace.update(cx, |workspace, cx| {
3531                workspace.project().update(cx, |_project, cx| {
3532                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3533                })
3534            })
3535        }
3536
3537        AgentContextHandle::Symbol(symbol_context) => {
3538            let buffer = symbol_context.buffer.read(cx);
3539            if let Some(project_path) = buffer.project_path(cx) {
3540                let snapshot = buffer.snapshot();
3541                let target_position = symbol_context.range.start.to_point(&snapshot);
3542                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3543                    .detach();
3544            }
3545        }
3546
3547        AgentContextHandle::Selection(selection_context) => {
3548            let buffer = selection_context.buffer.read(cx);
3549            if let Some(project_path) = buffer.project_path(cx) {
3550                let snapshot = buffer.snapshot();
3551                let target_position = selection_context.range.start.to_point(&snapshot);
3552
3553                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3554                    .detach();
3555            }
3556        }
3557
3558        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3559            cx.open_url(&fetched_url_context.url);
3560        }
3561
3562        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3563            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3564                panel.update(cx, |panel, cx| {
3565                    panel.open_thread(thread_context.thread.clone(), window, cx);
3566                });
3567            }
3568        }),
3569
3570        AgentContextHandle::TextThread(text_thread_context) => {
3571            workspace.update(cx, |workspace, cx| {
3572                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3573                    panel.update(cx, |panel, cx| {
3574                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3575                    });
3576                }
3577            })
3578        }
3579
3580        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3581            Box::new(OpenRulesLibrary {
3582                prompt_to_select: Some(rules_context.prompt_id.0),
3583            }),
3584            cx,
3585        ),
3586
3587        AgentContextHandle::Image(_) => {}
3588    }
3589}
3590
3591fn open_editor_at_position(
3592    project_path: project::ProjectPath,
3593    target_position: Point,
3594    workspace: &Entity<Workspace>,
3595    window: &mut Window,
3596    cx: &mut App,
3597) -> Task<()> {
3598    let open_task = workspace.update(cx, |workspace, cx| {
3599        workspace.open_path(project_path, None, true, window, cx)
3600    });
3601    window.spawn(cx, async move |cx| {
3602        if let Some(active_editor) = open_task
3603            .await
3604            .log_err()
3605            .and_then(|item| item.downcast::<Editor>())
3606        {
3607            active_editor
3608                .downgrade()
3609                .update_in(cx, |editor, window, cx| {
3610                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3611                })
3612                .log_err();
3613        }
3614    })
3615}