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
 189    text_style.refine(&TextStyleRefinement {
 190        font_family: Some(theme_settings.ui_font.family.clone()),
 191        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 192        font_features: Some(theme_settings.ui_font.features.clone()),
 193        font_size: Some(ui_font_size.into()),
 194        color: Some(cx.theme().colors().text),
 195        ..Default::default()
 196    });
 197
 198    MarkdownStyle {
 199        base_text_style: text_style.clone(),
 200        syntax: cx.theme().syntax().clone(),
 201        selection_background_color: cx.theme().players().local().selection,
 202        code_block_overflow_x_scroll: true,
 203        table_overflow_x_scroll: true,
 204        heading_level_styles: Some(HeadingLevelStyles {
 205            h1: Some(TextStyleRefinement {
 206                font_size: Some(rems(1.15).into()),
 207                ..Default::default()
 208            }),
 209            h2: Some(TextStyleRefinement {
 210                font_size: Some(rems(1.1).into()),
 211                ..Default::default()
 212            }),
 213            h3: Some(TextStyleRefinement {
 214                font_size: Some(rems(1.05).into()),
 215                ..Default::default()
 216            }),
 217            h4: Some(TextStyleRefinement {
 218                font_size: Some(rems(1.).into()),
 219                ..Default::default()
 220            }),
 221            h5: Some(TextStyleRefinement {
 222                font_size: Some(rems(0.95).into()),
 223                ..Default::default()
 224            }),
 225            h6: Some(TextStyleRefinement {
 226                font_size: Some(rems(0.875).into()),
 227                ..Default::default()
 228            }),
 229        }),
 230        code_block: StyleRefinement {
 231            padding: EdgesRefinement {
 232                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 233                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 234                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236            },
 237            background: Some(colors.editor_background.into()),
 238            text: Some(TextStyleRefinement {
 239                font_family: Some(theme_settings.buffer_font.family.clone()),
 240                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 241                font_features: Some(theme_settings.buffer_font.features.clone()),
 242                font_size: Some(buffer_font_size.into()),
 243                ..Default::default()
 244            }),
 245            ..Default::default()
 246        },
 247        inline_code: TextStyleRefinement {
 248            font_family: Some(theme_settings.buffer_font.family.clone()),
 249            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 250            font_features: Some(theme_settings.buffer_font.features.clone()),
 251            font_size: Some(buffer_font_size.into()),
 252            background_color: Some(colors.editor_foreground.opacity(0.08)),
 253            ..Default::default()
 254        },
 255        link: TextStyleRefinement {
 256            background_color: Some(colors.editor_foreground.opacity(0.025)),
 257            underline: Some(UnderlineStyle {
 258                color: Some(colors.text_accent.opacity(0.5)),
 259                thickness: px(1.),
 260                ..Default::default()
 261            }),
 262            ..Default::default()
 263        },
 264        link_callback: Some(Rc::new(move |url, cx| {
 265            if MentionLink::is_valid(url) {
 266                let colors = cx.theme().colors();
 267                Some(TextStyleRefinement {
 268                    background_color: Some(colors.element_background),
 269                    ..Default::default()
 270                })
 271            } else {
 272                None
 273            }
 274        })),
 275        ..Default::default()
 276    }
 277}
 278
 279fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 280    let theme_settings = ThemeSettings::get_global(cx);
 281    let colors = cx.theme().colors();
 282    let ui_font_size = TextSize::Default.rems(cx);
 283    let buffer_font_size = TextSize::Small.rems(cx);
 284    let mut text_style = window.text_style();
 285
 286    text_style.refine(&TextStyleRefinement {
 287        font_family: Some(theme_settings.ui_font.family.clone()),
 288        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 289        font_features: Some(theme_settings.ui_font.features.clone()),
 290        font_size: Some(ui_font_size.into()),
 291        color: Some(cx.theme().colors().text),
 292        ..Default::default()
 293    });
 294
 295    MarkdownStyle {
 296        base_text_style: text_style,
 297        syntax: cx.theme().syntax().clone(),
 298        selection_background_color: cx.theme().players().local().selection,
 299        code_block_overflow_x_scroll: true,
 300        code_block: StyleRefinement {
 301            margin: EdgesRefinement::default(),
 302            padding: EdgesRefinement::default(),
 303            background: Some(colors.editor_background.into()),
 304            border_color: None,
 305            border_widths: EdgesRefinement::default(),
 306            text: Some(TextStyleRefinement {
 307                font_family: Some(theme_settings.buffer_font.family.clone()),
 308                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 309                font_features: Some(theme_settings.buffer_font.features.clone()),
 310                font_size: Some(buffer_font_size.into()),
 311                ..Default::default()
 312            }),
 313            ..Default::default()
 314        },
 315        inline_code: TextStyleRefinement {
 316            font_family: Some(theme_settings.buffer_font.family.clone()),
 317            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 318            font_features: Some(theme_settings.buffer_font.features.clone()),
 319            font_size: Some(TextSize::XSmall.rems(cx).into()),
 320            ..Default::default()
 321        },
 322        heading: StyleRefinement {
 323            text: Some(TextStyleRefinement {
 324                font_size: Some(ui_font_size.into()),
 325                ..Default::default()
 326            }),
 327            ..Default::default()
 328        },
 329        ..Default::default()
 330    }
 331}
 332
 333const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 334const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 335
 336fn render_markdown_code_block(
 337    message_id: MessageId,
 338    ix: usize,
 339    kind: &CodeBlockKind,
 340    parsed_markdown: &ParsedMarkdown,
 341    metadata: CodeBlockMetadata,
 342    active_thread: Entity<ActiveThread>,
 343    workspace: WeakEntity<Workspace>,
 344    _window: &Window,
 345    cx: &App,
 346) -> Div {
 347    let label = match kind {
 348        CodeBlockKind::Indented => None,
 349        CodeBlockKind::Fenced => Some(
 350            h_flex()
 351                .gap_1()
 352                .child(
 353                    Icon::new(IconName::Code)
 354                        .color(Color::Muted)
 355                        .size(IconSize::XSmall),
 356                )
 357                .child(Label::new("untitled").size(LabelSize::Small))
 358                .into_any_element(),
 359        ),
 360        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 361            parsed_markdown.languages_by_name.get(raw_language_name),
 362            raw_language_name.clone(),
 363            cx,
 364        )),
 365        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 366            // We tell the model to use /dev/null for the path instead of using ```language
 367            // because otherwise it consistently fails to use code citations.
 368            if path_range.path.starts_with("/dev/null") {
 369                let ext = path_range
 370                    .path
 371                    .extension()
 372                    .and_then(OsStr::to_str)
 373                    .map(|str| SharedString::new(str.to_string()))
 374                    .unwrap_or_default();
 375
 376                render_code_language(
 377                    parsed_markdown
 378                        .languages_by_path
 379                        .get(&path_range.path)
 380                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 381                    ext,
 382                    cx,
 383                )
 384            } else {
 385                let content = if let Some(parent) = path_range.path.parent() {
 386                    h_flex()
 387                        .ml_1()
 388                        .gap_1()
 389                        .child(
 390                            Label::new(file_name.to_string_lossy().to_string())
 391                                .size(LabelSize::Small),
 392                        )
 393                        .child(
 394                            Label::new(parent.to_string_lossy().to_string())
 395                                .color(Color::Muted)
 396                                .size(LabelSize::Small),
 397                        )
 398                        .into_any_element()
 399                } else {
 400                    Label::new(path_range.path.to_string_lossy().to_string())
 401                        .size(LabelSize::Small)
 402                        .ml_1()
 403                        .into_any_element()
 404                };
 405
 406                h_flex()
 407                    .id(("code-block-header-label", ix))
 408                    .w_full()
 409                    .max_w_full()
 410                    .px_1()
 411                    .gap_0p5()
 412                    .cursor_pointer()
 413                    .rounded_sm()
 414                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 415                    .tooltip(Tooltip::text("Jump to File"))
 416                    .child(
 417                        h_flex()
 418                            .gap_0p5()
 419                            .children(
 420                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 421                                    .map(Icon::from_path)
 422                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 423                            )
 424                            .child(content)
 425                            .child(
 426                                Icon::new(IconName::ArrowUpRight)
 427                                    .size(IconSize::XSmall)
 428                                    .color(Color::Ignored),
 429                            ),
 430                    )
 431                    .on_click({
 432                        let path_range = path_range.clone();
 433                        move |_, window, cx| {
 434                            workspace
 435                                .update(cx, |workspace, cx| {
 436                                    open_path(&path_range, window, workspace, cx)
 437                                })
 438                                .ok();
 439                        }
 440                    })
 441                    .into_any_element()
 442            }
 443        }),
 444    };
 445
 446    let codeblock_was_copied = active_thread
 447        .read(cx)
 448        .copied_code_block_ids
 449        .contains(&(message_id, ix));
 450
 451    let can_expand = metadata.line_count >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
 452
 453    let is_expanded = if can_expand {
 454        active_thread.read(cx).is_codeblock_expanded(message_id, ix)
 455    } else {
 456        false
 457    };
 458
 459    let codeblock_header_bg = cx
 460        .theme()
 461        .colors()
 462        .element_background
 463        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 464
 465    let codeblock_header = h_flex()
 466        .py_1()
 467        .pl_1p5()
 468        .pr_1()
 469        .gap_1()
 470        .justify_between()
 471        .border_b_1()
 472        .border_color(cx.theme().colors().border.opacity(0.6))
 473        .bg(codeblock_header_bg)
 474        .rounded_t_md()
 475        .children(label)
 476        .child(
 477            h_flex()
 478                .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 479                .gap_1()
 480                .child(
 481                    IconButton::new(
 482                        ("copy-markdown-code", ix),
 483                        if codeblock_was_copied {
 484                            IconName::Check
 485                        } else {
 486                            IconName::Copy
 487                        },
 488                    )
 489                    .icon_color(Color::Muted)
 490                    .shape(ui::IconButtonShape::Square)
 491                    .tooltip(Tooltip::text("Copy Code"))
 492                    .on_click({
 493                        let active_thread = active_thread.clone();
 494                        let parsed_markdown = parsed_markdown.clone();
 495                        let code_block_range = metadata.content_range.clone();
 496                        move |_event, _window, cx| {
 497                            active_thread.update(cx, |this, cx| {
 498                                this.copied_code_block_ids.insert((message_id, ix));
 499
 500                                let code =
 501                                    parsed_markdown.source()[code_block_range.clone()].to_string();
 502                                cx.write_to_clipboard(ClipboardItem::new_string(code));
 503
 504                                cx.spawn(async move |this, cx| {
 505                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 506
 507                                    cx.update(|cx| {
 508                                        this.update(cx, |this, cx| {
 509                                            this.copied_code_block_ids.remove(&(message_id, ix));
 510                                            cx.notify();
 511                                        })
 512                                    })
 513                                    .ok();
 514                                })
 515                                .detach();
 516                            });
 517                        }
 518                    }),
 519                )
 520                .when(can_expand, |header| {
 521                    header.child(
 522                        IconButton::new(
 523                            ("expand-collapse-code", ix),
 524                            if is_expanded {
 525                                IconName::ChevronUp
 526                            } else {
 527                                IconName::ChevronDown
 528                            },
 529                        )
 530                        .icon_color(Color::Muted)
 531                        .shape(ui::IconButtonShape::Square)
 532                        .tooltip(Tooltip::text(if is_expanded {
 533                            "Collapse Code"
 534                        } else {
 535                            "Expand Code"
 536                        }))
 537                        .on_click({
 538                            let active_thread = active_thread.clone();
 539                            move |_event, _window, cx| {
 540                                active_thread.update(cx, |this, cx| {
 541                                    this.toggle_codeblock_expanded(message_id, ix);
 542                                    cx.notify();
 543                                });
 544                            }
 545                        }),
 546                    )
 547                }),
 548        );
 549
 550    v_flex()
 551        .group(CODEBLOCK_CONTAINER_GROUP)
 552        .my_2()
 553        .overflow_hidden()
 554        .rounded_lg()
 555        .border_1()
 556        .border_color(cx.theme().colors().border.opacity(0.6))
 557        .bg(cx.theme().colors().editor_background)
 558        .child(codeblock_header)
 559        .when(can_expand && !is_expanded, |this| this.max_h_80())
 560}
 561
 562fn open_path(
 563    path_range: &PathWithRange,
 564    window: &mut Window,
 565    workspace: &mut Workspace,
 566    cx: &mut Context<'_, Workspace>,
 567) {
 568    let Some(project_path) = workspace
 569        .project()
 570        .read(cx)
 571        .find_project_path(&path_range.path, cx)
 572    else {
 573        return; // TODO instead of just bailing out, open that path in a buffer.
 574    };
 575
 576    let Some(target) = path_range.range.as_ref().map(|range| {
 577        Point::new(
 578            // Line number is 1-based
 579            range.start.line.saturating_sub(1),
 580            range.start.col.unwrap_or(0),
 581        )
 582    }) else {
 583        return;
 584    };
 585    let open_task = workspace.open_path(project_path, None, true, window, cx);
 586    window
 587        .spawn(cx, async move |cx| {
 588            let item = open_task.await?;
 589            if let Some(active_editor) = item.downcast::<Editor>() {
 590                active_editor
 591                    .update_in(cx, |editor, window, cx| {
 592                        editor.go_to_singleton_buffer_point(target, window, cx);
 593                    })
 594                    .ok();
 595            }
 596            anyhow::Ok(())
 597        })
 598        .detach_and_log_err(cx);
 599}
 600
 601fn render_code_language(
 602    language: Option<&Arc<Language>>,
 603    name_fallback: SharedString,
 604    cx: &App,
 605) -> AnyElement {
 606    let icon_path = language.and_then(|language| {
 607        language
 608            .config()
 609            .matcher
 610            .path_suffixes
 611            .iter()
 612            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 613            .map(Icon::from_path)
 614    });
 615
 616    let language_label = language
 617        .map(|language| language.name().into())
 618        .unwrap_or(name_fallback);
 619
 620    h_flex()
 621        .gap_1()
 622        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 623        .child(Label::new(language_label).size(LabelSize::Small))
 624        .into_any_element()
 625}
 626
 627fn open_markdown_link(
 628    text: SharedString,
 629    workspace: WeakEntity<Workspace>,
 630    window: &mut Window,
 631    cx: &mut App,
 632) {
 633    let Some(workspace) = workspace.upgrade() else {
 634        cx.open_url(&text);
 635        return;
 636    };
 637
 638    match MentionLink::try_parse(&text, &workspace, cx) {
 639        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 640            if entry.is_dir() {
 641                workspace.project().update(cx, |_, cx| {
 642                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 643                })
 644            } else {
 645                workspace
 646                    .open_path(path, None, true, window, cx)
 647                    .detach_and_log_err(cx);
 648            }
 649        }),
 650        Some(MentionLink::Symbol(path, symbol_name)) => {
 651            let open_task = workspace.update(cx, |workspace, cx| {
 652                workspace.open_path(path, None, true, window, cx)
 653            });
 654            window
 655                .spawn(cx, async move |cx| {
 656                    let active_editor = open_task
 657                        .await?
 658                        .downcast::<Editor>()
 659                        .context("Item is not an editor")?;
 660                    active_editor.update_in(cx, |editor, window, cx| {
 661                        let symbol_range = editor
 662                            .buffer()
 663                            .read(cx)
 664                            .snapshot(cx)
 665                            .outline(None)
 666                            .and_then(|outline| {
 667                                outline
 668                                    .find_most_similar(&symbol_name)
 669                                    .map(|(_, item)| item.range.clone())
 670                            })
 671                            .context("Could not find matching symbol")?;
 672
 673                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 674                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 675                        });
 676                        anyhow::Ok(())
 677                    })
 678                })
 679                .detach_and_log_err(cx);
 680        }
 681        Some(MentionLink::Selection(path, line_range)) => {
 682            let open_task = workspace.update(cx, |workspace, cx| {
 683                workspace.open_path(path, None, true, window, cx)
 684            });
 685            window
 686                .spawn(cx, async move |cx| {
 687                    let active_editor = open_task
 688                        .await?
 689                        .downcast::<Editor>()
 690                        .context("Item is not an editor")?;
 691                    active_editor.update_in(cx, |editor, window, cx| {
 692                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 693                            s.select_ranges([Point::new(line_range.start as u32, 0)
 694                                ..Point::new(line_range.start as u32, 0)])
 695                        });
 696                        anyhow::Ok(())
 697                    })
 698                })
 699                .detach_and_log_err(cx);
 700        }
 701        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 702            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 703                panel.update(cx, |panel, cx| {
 704                    panel
 705                        .open_thread_by_id(&thread_id, window, cx)
 706                        .detach_and_log_err(cx)
 707                });
 708            }
 709        }),
 710        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 711            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 712                panel.update(cx, |panel, cx| {
 713                    panel
 714                        .open_saved_prompt_editor(path, window, cx)
 715                        .detach_and_log_err(cx);
 716                });
 717            }
 718        }),
 719        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 720        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 721            Box::new(OpenRulesLibrary {
 722                prompt_to_select: Some(prompt_id.0),
 723            }),
 724            cx,
 725        ),
 726        None => cx.open_url(&text),
 727    }
 728}
 729
 730struct EditingMessageState {
 731    editor: Entity<Editor>,
 732    context_strip: Entity<ContextStrip>,
 733    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 734    last_estimated_token_count: Option<usize>,
 735    _subscriptions: [Subscription; 2],
 736    _update_token_count_task: Option<Task<()>>,
 737}
 738
 739impl ActiveThread {
 740    pub fn new(
 741        thread: Entity<Thread>,
 742        thread_store: Entity<ThreadStore>,
 743        text_thread_store: Entity<TextThreadStore>,
 744        context_store: Entity<ContextStore>,
 745        language_registry: Arc<LanguageRegistry>,
 746        workspace: WeakEntity<Workspace>,
 747        window: &mut Window,
 748        cx: &mut Context<Self>,
 749    ) -> Self {
 750        let subscriptions = vec![
 751            cx.observe(&thread, |_, _, cx| cx.notify()),
 752            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 753            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 754            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 755        ];
 756
 757        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 758            let this = cx.entity().downgrade();
 759            move |ix, window: &mut Window, cx: &mut App| {
 760                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 761                    .unwrap()
 762            }
 763        });
 764        let mut this = Self {
 765            language_registry,
 766            thread_store,
 767            text_thread_store,
 768            context_store,
 769            thread: thread.clone(),
 770            workspace,
 771            save_thread_task: None,
 772            messages: Vec::new(),
 773            rendered_messages_by_id: HashMap::default(),
 774            rendered_tool_uses: HashMap::default(),
 775            expanded_tool_uses: HashMap::default(),
 776            expanded_thinking_segments: HashMap::default(),
 777            expanded_code_blocks: HashMap::default(),
 778            list_state: list_state.clone(),
 779            scrollbar_state: ScrollbarState::new(list_state),
 780            show_scrollbar: false,
 781            hide_scrollbar_task: None,
 782            editing_message: None,
 783            last_error: None,
 784            copied_code_block_ids: HashSet::default(),
 785            notifications: Vec::new(),
 786            _subscriptions: subscriptions,
 787            notification_subscriptions: HashMap::default(),
 788            open_feedback_editors: HashMap::default(),
 789            _load_edited_message_context_task: None,
 790        };
 791
 792        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 793            this.push_message(&message.id, &message.segments, window, cx);
 794
 795            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 796                this.render_tool_use_markdown(
 797                    tool_use.id.clone(),
 798                    tool_use.ui_text.clone(),
 799                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 800                    tool_use.status.text(),
 801                    cx,
 802                );
 803            }
 804        }
 805
 806        this
 807    }
 808
 809    pub fn thread(&self) -> &Entity<Thread> {
 810        &self.thread
 811    }
 812
 813    pub fn is_empty(&self) -> bool {
 814        self.messages.is_empty()
 815    }
 816
 817    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 818        self.thread.read(cx).summary()
 819    }
 820
 821    pub fn regenerate_summary(&self, cx: &mut App) {
 822        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 823    }
 824
 825    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 826        self.last_error.take();
 827        self.thread.update(cx, |thread, cx| {
 828            thread.cancel_last_completion(Some(window.window_handle()), cx)
 829        })
 830    }
 831
 832    pub fn last_error(&self) -> Option<ThreadError> {
 833        self.last_error.clone()
 834    }
 835
 836    pub fn clear_last_error(&mut self) {
 837        self.last_error.take();
 838    }
 839
 840    /// Returns the editing message id and the estimated token count in the content
 841    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 842        self.editing_message
 843            .as_ref()
 844            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 845    }
 846
 847    pub fn context_store(&self) -> &Entity<ContextStore> {
 848        &self.context_store
 849    }
 850
 851    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 852        &self.thread_store
 853    }
 854
 855    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 856        &self.text_thread_store
 857    }
 858
 859    fn push_message(
 860        &mut self,
 861        id: &MessageId,
 862        segments: &[MessageSegment],
 863        _window: &mut Window,
 864        cx: &mut Context<Self>,
 865    ) {
 866        let old_len = self.messages.len();
 867        self.messages.push(*id);
 868        self.list_state.splice(old_len..old_len, 1);
 869
 870        let rendered_message =
 871            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 872        self.rendered_messages_by_id.insert(*id, rendered_message);
 873    }
 874
 875    fn edited_message(
 876        &mut self,
 877        id: &MessageId,
 878        segments: &[MessageSegment],
 879        _window: &mut Window,
 880        cx: &mut Context<Self>,
 881    ) {
 882        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 883            return;
 884        };
 885        self.list_state.splice(index..index + 1, 1);
 886        let rendered_message =
 887            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 888        self.rendered_messages_by_id.insert(*id, rendered_message);
 889    }
 890
 891    fn deleted_message(&mut self, id: &MessageId) {
 892        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 893            return;
 894        };
 895        self.messages.remove(index);
 896        self.list_state.splice(index..index + 1, 0);
 897        self.rendered_messages_by_id.remove(id);
 898    }
 899
 900    fn render_tool_use_markdown(
 901        &mut self,
 902        tool_use_id: LanguageModelToolUseId,
 903        tool_label: impl Into<SharedString>,
 904        tool_input: &str,
 905        tool_output: SharedString,
 906        cx: &mut Context<Self>,
 907    ) {
 908        let rendered = self
 909            .rendered_tool_uses
 910            .entry(tool_use_id.clone())
 911            .or_insert_with(|| RenderedToolUse {
 912                label: cx.new(|cx| {
 913                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 914                }),
 915                input: cx.new(|cx| {
 916                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 917                }),
 918                output: cx.new(|cx| {
 919                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 920                }),
 921            });
 922
 923        rendered.label.update(cx, |this, cx| {
 924            this.replace(tool_label, cx);
 925        });
 926        rendered.input.update(cx, |this, cx| {
 927            this.replace(
 928                MarkdownCodeBlock {
 929                    tag: "json",
 930                    text: tool_input,
 931                }
 932                .to_string(),
 933                cx,
 934            );
 935        });
 936        rendered.output.update(cx, |this, cx| {
 937            this.replace(tool_output, cx);
 938        });
 939    }
 940
 941    fn handle_thread_event(
 942        &mut self,
 943        _thread: &Entity<Thread>,
 944        event: &ThreadEvent,
 945        window: &mut Window,
 946        cx: &mut Context<Self>,
 947    ) {
 948        match event {
 949            ThreadEvent::CancelEditing => {
 950                if self.editing_message.is_some() {
 951                    self.cancel_editing_message(&menu::Cancel, window, cx);
 952                }
 953            }
 954            ThreadEvent::ShowError(error) => {
 955                self.last_error = Some(error.clone());
 956            }
 957            ThreadEvent::NewRequest | ThreadEvent::CompletionCanceled => {
 958                cx.notify();
 959            }
 960            ThreadEvent::StreamedCompletion
 961            | ThreadEvent::SummaryGenerated
 962            | ThreadEvent::SummaryChanged => {
 963                self.save_thread(cx);
 964            }
 965            ThreadEvent::Stopped(reason) => match reason {
 966                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 967                    let thread = self.thread.read(cx);
 968                    self.show_notification(
 969                        if thread.used_tools_since_last_user_message() {
 970                            "Finished running tools"
 971                        } else {
 972                            "New message"
 973                        },
 974                        IconName::ZedAssistant,
 975                        window,
 976                        cx,
 977                    );
 978                }
 979                _ => {}
 980            },
 981            ThreadEvent::ToolConfirmationNeeded => {
 982                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 983            }
 984            ThreadEvent::StreamedAssistantText(message_id, text) => {
 985                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 986                    rendered_message.append_text(text, cx);
 987                }
 988            }
 989            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 990                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 991                    rendered_message.append_thinking(text, cx);
 992                }
 993            }
 994            ThreadEvent::MessageAdded(message_id) => {
 995                if let Some(message_segments) = self
 996                    .thread
 997                    .read(cx)
 998                    .message(*message_id)
 999                    .map(|message| message.segments.clone())
1000                {
1001                    self.push_message(message_id, &message_segments, window, cx);
1002                }
1003
1004                self.save_thread(cx);
1005                cx.notify();
1006            }
1007            ThreadEvent::MessageEdited(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.edited_message(message_id, &message_segments, window, cx);
1015                }
1016
1017                self.save_thread(cx);
1018                cx.notify();
1019            }
1020            ThreadEvent::MessageDeleted(message_id) => {
1021                self.deleted_message(message_id);
1022                self.save_thread(cx);
1023                cx.notify();
1024            }
1025            ThreadEvent::UsePendingTools { tool_uses } => {
1026                for tool_use in tool_uses {
1027                    self.render_tool_use_markdown(
1028                        tool_use.id.clone(),
1029                        tool_use.ui_text.clone(),
1030                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1031                        "".into(),
1032                        cx,
1033                    );
1034                }
1035            }
1036            ThreadEvent::StreamedToolUse {
1037                tool_use_id,
1038                ui_text,
1039                input,
1040            } => {
1041                self.render_tool_use_markdown(
1042                    tool_use_id.clone(),
1043                    ui_text.clone(),
1044                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1045                    "".into(),
1046                    cx,
1047                );
1048            }
1049            ThreadEvent::ToolFinished {
1050                pending_tool_use, ..
1051            } => {
1052                if let Some(tool_use) = pending_tool_use {
1053                    self.render_tool_use_markdown(
1054                        tool_use.id.clone(),
1055                        tool_use.ui_text.clone(),
1056                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1057                        self.thread
1058                            .read(cx)
1059                            .output_for_tool(&tool_use.id)
1060                            .map(|output| output.clone().into())
1061                            .unwrap_or("".into()),
1062                        cx,
1063                    );
1064                }
1065            }
1066            ThreadEvent::CheckpointChanged => cx.notify(),
1067            ThreadEvent::ReceivedTextChunk => {}
1068            ThreadEvent::InvalidToolInput {
1069                tool_use_id,
1070                ui_text,
1071                invalid_input_json,
1072            } => {
1073                self.render_tool_use_markdown(
1074                    tool_use_id.clone(),
1075                    ui_text,
1076                    invalid_input_json,
1077                    self.thread
1078                        .read(cx)
1079                        .output_for_tool(tool_use_id)
1080                        .map(|output| output.clone().into())
1081                        .unwrap_or("".into()),
1082                    cx,
1083                );
1084            }
1085            ThreadEvent::MissingToolUse {
1086                tool_use_id,
1087                ui_text,
1088            } => {
1089                self.render_tool_use_markdown(
1090                    tool_use_id.clone(),
1091                    ui_text,
1092                    "",
1093                    self.thread
1094                        .read(cx)
1095                        .output_for_tool(tool_use_id)
1096                        .map(|output| output.clone().into())
1097                        .unwrap_or("".into()),
1098                    cx,
1099                );
1100            }
1101        }
1102    }
1103
1104    fn handle_rules_loading_error(
1105        &mut self,
1106        _thread_store: Entity<ThreadStore>,
1107        error: &RulesLoadingError,
1108        cx: &mut Context<Self>,
1109    ) {
1110        self.last_error = Some(ThreadError::Message {
1111            header: "Error loading rules file".into(),
1112            message: error.message.clone(),
1113        });
1114        cx.notify();
1115    }
1116
1117    fn show_notification(
1118        &mut self,
1119        caption: impl Into<SharedString>,
1120        icon: IconName,
1121        window: &mut Window,
1122        cx: &mut Context<ActiveThread>,
1123    ) {
1124        if window.is_window_active() || !self.notifications.is_empty() {
1125            return;
1126        }
1127
1128        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1129
1130        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1131            NotifyWhenAgentWaiting::PrimaryScreen => {
1132                if let Some(primary) = cx.primary_display() {
1133                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1134                }
1135            }
1136            NotifyWhenAgentWaiting::AllScreens => {
1137                let caption = caption.into();
1138                for screen in cx.displays() {
1139                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1140                }
1141            }
1142            NotifyWhenAgentWaiting::Never => {
1143                // Don't show anything
1144            }
1145        }
1146    }
1147
1148    fn pop_up(
1149        &mut self,
1150        icon: IconName,
1151        caption: SharedString,
1152        title: SharedString,
1153        window: &mut Window,
1154        screen: Rc<dyn PlatformDisplay>,
1155        cx: &mut Context<'_, ActiveThread>,
1156    ) {
1157        let options = AgentNotification::window_options(screen, cx);
1158
1159        let project_name = self.workspace.upgrade().and_then(|workspace| {
1160            workspace
1161                .read(cx)
1162                .project()
1163                .read(cx)
1164                .visible_worktrees(cx)
1165                .next()
1166                .map(|worktree| worktree.read(cx).root_name().to_string())
1167        });
1168
1169        if let Some(screen_window) = cx
1170            .open_window(options, |_, cx| {
1171                cx.new(|_| {
1172                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1173                })
1174            })
1175            .log_err()
1176        {
1177            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1178                self.notification_subscriptions
1179                    .entry(screen_window)
1180                    .or_insert_with(Vec::new)
1181                    .push(cx.subscribe_in(&pop_up, window, {
1182                        |this, _, event, window, cx| match event {
1183                            AgentNotificationEvent::Accepted => {
1184                                let handle = window.window_handle();
1185                                cx.activate(true);
1186
1187                                let workspace_handle = this.workspace.clone();
1188
1189                                // If there are multiple Zed windows, activate the correct one.
1190                                cx.defer(move |cx| {
1191                                    handle
1192                                        .update(cx, |_view, window, _cx| {
1193                                            window.activate_window();
1194
1195                                            if let Some(workspace) = workspace_handle.upgrade() {
1196                                                workspace.update(_cx, |workspace, cx| {
1197                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1198                                                });
1199                                            }
1200                                        })
1201                                        .log_err();
1202                                });
1203
1204                                this.dismiss_notifications(cx);
1205                            }
1206                            AgentNotificationEvent::Dismissed => {
1207                                this.dismiss_notifications(cx);
1208                            }
1209                        }
1210                    }));
1211
1212                self.notifications.push(screen_window);
1213
1214                // If the user manually refocuses the original window, dismiss the popup.
1215                self.notification_subscriptions
1216                    .entry(screen_window)
1217                    .or_insert_with(Vec::new)
1218                    .push({
1219                        let pop_up_weak = pop_up.downgrade();
1220
1221                        cx.observe_window_activation(window, move |_, window, cx| {
1222                            if window.is_window_active() {
1223                                if let Some(pop_up) = pop_up_weak.upgrade() {
1224                                    pop_up.update(cx, |_, cx| {
1225                                        cx.emit(AgentNotificationEvent::Dismissed);
1226                                    });
1227                                }
1228                            }
1229                        })
1230                    });
1231            }
1232        }
1233    }
1234
1235    /// Spawns a task to save the active thread.
1236    ///
1237    /// Only one task to save the thread will be in flight at a time.
1238    fn save_thread(&mut self, cx: &mut Context<Self>) {
1239        let thread = self.thread.clone();
1240        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1241            let task = this
1242                .update(cx, |this, cx| {
1243                    this.thread_store
1244                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1245                })
1246                .ok();
1247
1248            if let Some(task) = task {
1249                task.await.log_err();
1250            }
1251        }));
1252    }
1253
1254    fn start_editing_message(
1255        &mut self,
1256        message_id: MessageId,
1257        message_segments: &[MessageSegment],
1258        message_creases: &[MessageCrease],
1259        window: &mut Window,
1260        cx: &mut Context<Self>,
1261    ) {
1262        // User message should always consist of a single text segment,
1263        // therefore we can skip returning early if it's not a text segment.
1264        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1265            return;
1266        };
1267
1268        let editor = crate::message_editor::create_editor(
1269            self.workspace.clone(),
1270            self.context_store.downgrade(),
1271            self.thread_store.downgrade(),
1272            self.text_thread_store.downgrade(),
1273            window,
1274            cx,
1275        );
1276        editor.update(cx, |editor, cx| {
1277            editor.set_text(message_text.clone(), window, cx);
1278            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1279            editor.focus_handle(cx).focus(window);
1280            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1281        });
1282        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1283            EditorEvent::BufferEdited => {
1284                this.update_editing_message_token_count(true, cx);
1285            }
1286            _ => {}
1287        });
1288
1289        let context_picker_menu_handle = PopoverMenuHandle::default();
1290        let context_strip = cx.new(|cx| {
1291            ContextStrip::new(
1292                self.context_store.clone(),
1293                self.workspace.clone(),
1294                Some(self.thread_store.downgrade()),
1295                Some(self.text_thread_store.downgrade()),
1296                context_picker_menu_handle.clone(),
1297                SuggestContextKind::File,
1298                window,
1299                cx,
1300            )
1301        });
1302
1303        let context_strip_subscription =
1304            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1305
1306        self.editing_message = Some((
1307            message_id,
1308            EditingMessageState {
1309                editor: editor.clone(),
1310                context_strip,
1311                context_picker_menu_handle,
1312                last_estimated_token_count: None,
1313                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1314                _update_token_count_task: None,
1315            },
1316        ));
1317        self.update_editing_message_token_count(false, cx);
1318        cx.notify();
1319    }
1320
1321    fn handle_context_strip_event(
1322        &mut self,
1323        _context_strip: &Entity<ContextStrip>,
1324        event: &ContextStripEvent,
1325        window: &mut Window,
1326        cx: &mut Context<Self>,
1327    ) {
1328        if let Some((_, state)) = self.editing_message.as_ref() {
1329            match event {
1330                ContextStripEvent::PickerDismissed
1331                | ContextStripEvent::BlurredEmpty
1332                | ContextStripEvent::BlurredDown => {
1333                    let editor_focus_handle = state.editor.focus_handle(cx);
1334                    window.focus(&editor_focus_handle);
1335                }
1336                ContextStripEvent::BlurredUp => {}
1337            }
1338        }
1339    }
1340
1341    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1342        let Some((message_id, state)) = self.editing_message.as_mut() else {
1343            return;
1344        };
1345
1346        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1347        state._update_token_count_task.take();
1348
1349        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1350            state.last_estimated_token_count.take();
1351            return;
1352        };
1353
1354        let editor = state.editor.clone();
1355        let thread = self.thread.clone();
1356        let message_id = *message_id;
1357
1358        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1359            if debounce {
1360                cx.background_executor()
1361                    .timer(Duration::from_millis(200))
1362                    .await;
1363            }
1364
1365            let token_count = if let Some(task) = cx
1366                .update(|cx| {
1367                    let Some(message) = thread.read(cx).message(message_id) else {
1368                        log::error!("Message that was being edited no longer exists");
1369                        return None;
1370                    };
1371                    let message_text = editor.read(cx).text(cx);
1372
1373                    if message_text.is_empty() && message.loaded_context.is_empty() {
1374                        return None;
1375                    }
1376
1377                    let mut request_message = LanguageModelRequestMessage {
1378                        role: language_model::Role::User,
1379                        content: Vec::new(),
1380                        cache: false,
1381                    };
1382
1383                    message
1384                        .loaded_context
1385                        .add_to_request_message(&mut request_message);
1386
1387                    if !message_text.is_empty() {
1388                        request_message
1389                            .content
1390                            .push(MessageContent::Text(message_text));
1391                    }
1392
1393                    let request = language_model::LanguageModelRequest {
1394                        thread_id: None,
1395                        prompt_id: None,
1396                        mode: None,
1397                        messages: vec![request_message],
1398                        tools: vec![],
1399                        tool_choice: None,
1400                        stop: vec![],
1401                        temperature: AssistantSettings::temperature_for_model(
1402                            &configured_model.model,
1403                            cx,
1404                        ),
1405                    };
1406
1407                    Some(configured_model.model.count_tokens(request, cx))
1408                })
1409                .ok()
1410                .flatten()
1411            {
1412                task.await.log_err()
1413            } else {
1414                Some(0)
1415            };
1416
1417            if let Some(token_count) = token_count {
1418                this.update(cx, |this, cx| {
1419                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1420                        return;
1421                    };
1422
1423                    state.last_estimated_token_count = Some(token_count);
1424                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1425                })
1426                .ok();
1427            };
1428        }));
1429    }
1430
1431    fn toggle_context_picker(
1432        &mut self,
1433        _: &crate::ToggleContextPicker,
1434        window: &mut Window,
1435        cx: &mut Context<Self>,
1436    ) {
1437        if let Some((_, state)) = self.editing_message.as_mut() {
1438            let handle = state.context_picker_menu_handle.clone();
1439            window.defer(cx, move |window, cx| {
1440                handle.toggle(window, cx);
1441            });
1442        }
1443    }
1444
1445    fn remove_all_context(
1446        &mut self,
1447        _: &crate::RemoveAllContext,
1448        _window: &mut Window,
1449        cx: &mut Context<Self>,
1450    ) {
1451        self.context_store.update(cx, |store, _cx| store.clear());
1452        cx.notify();
1453    }
1454
1455    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1456        if let Some((_, state)) = self.editing_message.as_mut() {
1457            if state.context_picker_menu_handle.is_deployed() {
1458                cx.propagate();
1459            } else {
1460                state.context_strip.focus_handle(cx).focus(window);
1461            }
1462        }
1463    }
1464
1465    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1466        let images = cx
1467            .read_from_clipboard()
1468            .map(|item| {
1469                item.into_entries()
1470                    .filter_map(|entry| {
1471                        if let ClipboardEntry::Image(image) = entry {
1472                            Some(image)
1473                        } else {
1474                            None
1475                        }
1476                    })
1477                    .collect::<Vec<_>>()
1478            })
1479            .unwrap_or_default();
1480
1481        if images.is_empty() {
1482            return;
1483        }
1484        cx.stop_propagation();
1485
1486        self.context_store.update(cx, |store, cx| {
1487            for image in images {
1488                store.add_image_instance(Arc::new(image), cx);
1489            }
1490        });
1491    }
1492
1493    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1494        self.editing_message.take();
1495        cx.notify();
1496    }
1497
1498    fn confirm_editing_message(
1499        &mut self,
1500        _: &menu::Confirm,
1501        window: &mut Window,
1502        cx: &mut Context<Self>,
1503    ) {
1504        let Some((message_id, state)) = self.editing_message.take() else {
1505            return;
1506        };
1507
1508        let Some(model) = self
1509            .thread
1510            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1511        else {
1512            return;
1513        };
1514
1515        if model.provider.must_accept_terms(cx) {
1516            cx.notify();
1517            return;
1518        }
1519
1520        let edited_text = state.editor.read(cx).text(cx);
1521
1522        let new_context = self
1523            .context_store
1524            .read(cx)
1525            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1526
1527        let project = self.thread.read(cx).project().clone();
1528        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1529
1530        let load_context_task =
1531            crate::context::load_context(new_context, &project, &prompt_store, cx);
1532        self._load_edited_message_context_task =
1533            Some(cx.spawn_in(window, async move |this, cx| {
1534                let context = load_context_task.await;
1535                let _ = this
1536                    .update_in(cx, |this, window, cx| {
1537                        this.thread.update(cx, |thread, cx| {
1538                            thread.edit_message(
1539                                message_id,
1540                                Role::User,
1541                                vec![MessageSegment::Text(edited_text)],
1542                                Some(context.loaded_context),
1543                                cx,
1544                            );
1545                            for message_id in this.messages_after(message_id) {
1546                                thread.delete_message(*message_id, cx);
1547                            }
1548                        });
1549
1550                        this.thread.update(cx, |thread, cx| {
1551                            thread.advance_prompt_id();
1552                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1553                        });
1554                        this._load_edited_message_context_task = None;
1555                        cx.notify();
1556                    })
1557                    .log_err();
1558            }));
1559    }
1560
1561    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1562        self.messages
1563            .iter()
1564            .position(|id| *id == message_id)
1565            .map(|index| &self.messages[index + 1..])
1566            .unwrap_or(&[])
1567    }
1568
1569    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1570        self.cancel_editing_message(&menu::Cancel, window, cx);
1571    }
1572
1573    fn handle_regenerate_click(
1574        &mut self,
1575        _: &ClickEvent,
1576        window: &mut Window,
1577        cx: &mut Context<Self>,
1578    ) {
1579        self.confirm_editing_message(&menu::Confirm, window, cx);
1580    }
1581
1582    fn handle_feedback_click(
1583        &mut self,
1584        message_id: MessageId,
1585        feedback: ThreadFeedback,
1586        window: &mut Window,
1587        cx: &mut Context<Self>,
1588    ) {
1589        let report = self.thread.update(cx, |thread, cx| {
1590            thread.report_message_feedback(message_id, feedback, cx)
1591        });
1592
1593        cx.spawn(async move |this, cx| {
1594            report.await?;
1595            this.update(cx, |_this, cx| cx.notify())
1596        })
1597        .detach_and_log_err(cx);
1598
1599        match feedback {
1600            ThreadFeedback::Positive => {
1601                self.open_feedback_editors.remove(&message_id);
1602            }
1603            ThreadFeedback::Negative => {
1604                self.handle_show_feedback_comments(message_id, window, cx);
1605            }
1606        }
1607    }
1608
1609    fn handle_show_feedback_comments(
1610        &mut self,
1611        message_id: MessageId,
1612        window: &mut Window,
1613        cx: &mut Context<Self>,
1614    ) {
1615        let buffer = cx.new(|cx| {
1616            let empty_string = String::new();
1617            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1618        });
1619
1620        let editor = cx.new(|cx| {
1621            let mut editor = Editor::new(
1622                editor::EditorMode::AutoHeight { max_lines: 4 },
1623                buffer,
1624                None,
1625                window,
1626                cx,
1627            );
1628            editor.set_placeholder_text(
1629                "What went wrong? Share your feedback so we can improve.",
1630                cx,
1631            );
1632            editor
1633        });
1634
1635        editor.read(cx).focus_handle(cx).focus(window);
1636        self.open_feedback_editors.insert(message_id, editor);
1637        cx.notify();
1638    }
1639
1640    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1641        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1642            return;
1643        };
1644
1645        let report_task = self.thread.update(cx, |thread, cx| {
1646            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1647        });
1648
1649        let comments = editor.read(cx).text(cx);
1650        if !comments.is_empty() {
1651            let thread_id = self.thread.read(cx).id().clone();
1652            let comments_value = String::from(comments.as_str());
1653
1654            let message_content = self
1655                .thread
1656                .read(cx)
1657                .message(message_id)
1658                .map(|msg| msg.to_string())
1659                .unwrap_or_default();
1660
1661            telemetry::event!(
1662                "Assistant Thread Feedback Comments",
1663                thread_id,
1664                message_id = message_id.0,
1665                message_content,
1666                comments = comments_value
1667            );
1668
1669            self.open_feedback_editors.remove(&message_id);
1670
1671            cx.spawn(async move |this, cx| {
1672                report_task.await?;
1673                this.update(cx, |_this, cx| cx.notify())
1674            })
1675            .detach_and_log_err(cx);
1676        }
1677    }
1678
1679    fn render_edit_message_editor(
1680        &self,
1681        state: &EditingMessageState,
1682        _window: &mut Window,
1683        cx: &Context<Self>,
1684    ) -> impl IntoElement {
1685        let settings = ThemeSettings::get_global(cx);
1686        let font_size = TextSize::Small
1687            .rems(cx)
1688            .to_pixels(settings.agent_font_size(cx));
1689        let line_height = font_size * 1.75;
1690
1691        let colors = cx.theme().colors();
1692
1693        let text_style = TextStyle {
1694            color: colors.text,
1695            font_family: settings.buffer_font.family.clone(),
1696            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1697            font_features: settings.buffer_font.features.clone(),
1698            font_size: font_size.into(),
1699            line_height: line_height.into(),
1700            ..Default::default()
1701        };
1702
1703        v_flex()
1704            .key_context("EditMessageEditor")
1705            .on_action(cx.listener(Self::toggle_context_picker))
1706            .on_action(cx.listener(Self::remove_all_context))
1707            .on_action(cx.listener(Self::move_up))
1708            .on_action(cx.listener(Self::cancel_editing_message))
1709            .on_action(cx.listener(Self::confirm_editing_message))
1710            .capture_action(cx.listener(Self::paste))
1711            .min_h_6()
1712            .flex_grow()
1713            .w_full()
1714            .gap_2()
1715            .child(EditorElement::new(
1716                &state.editor,
1717                EditorStyle {
1718                    background: colors.editor_background,
1719                    local_player: cx.theme().players().local(),
1720                    text: text_style,
1721                    syntax: cx.theme().syntax().clone(),
1722                    ..Default::default()
1723                },
1724            ))
1725            .child(state.context_strip.clone())
1726    }
1727
1728    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1729        let message_id = self.messages[ix];
1730        let Some(message) = self.thread.read(cx).message(message_id) else {
1731            return Empty.into_any();
1732        };
1733        let message_creases = message.creases.clone();
1734
1735        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1736            return Empty.into_any();
1737        };
1738
1739        let workspace = self.workspace.clone();
1740        let thread = self.thread.read(cx);
1741
1742        // Get all the data we need from thread before we start using it in closures
1743        let checkpoint = thread.checkpoint_for_message(message_id);
1744        let added_context = thread
1745            .context_for_message(message_id)
1746            .map(|context| AddedContext::new_attached(context, cx))
1747            .collect::<Vec<_>>();
1748
1749        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1750        let has_tool_uses = !tool_uses.is_empty();
1751        let is_generating = thread.is_generating();
1752        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1753
1754        let is_first_message = ix == 0;
1755        let is_last_message = ix == self.messages.len() - 1;
1756
1757        let loading_dots = (is_generating_stale && is_last_message)
1758            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1759
1760        let editing_message_state = self
1761            .editing_message
1762            .as_ref()
1763            .filter(|(id, _)| *id == message_id)
1764            .map(|(_, state)| state);
1765
1766        let colors = cx.theme().colors();
1767        let editor_bg_color = colors.editor_background;
1768
1769        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1770            .icon_size(IconSize::XSmall)
1771            .icon_color(Color::Ignored)
1772            .tooltip(Tooltip::text("Open Thread as Markdown"))
1773            .on_click({
1774                let thread = self.thread.clone();
1775                let workspace = self.workspace.clone();
1776                move |_, window, cx| {
1777                    if let Some(workspace) = workspace.upgrade() {
1778                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1779                            .detach_and_log_err(cx);
1780                    }
1781                }
1782            });
1783
1784        // For all items that should be aligned with the LLM's response.
1785        const RESPONSE_PADDING_X: Pixels = px(19.);
1786
1787        let show_feedback = thread.is_turn_end(ix);
1788
1789        let feedback_container = h_flex()
1790            .group("feedback_container")
1791            .mt_1()
1792            .py_2()
1793            .px(RESPONSE_PADDING_X)
1794            .mr_1()
1795            .opacity(0.4)
1796            .hover(|style| style.opacity(1.))
1797            .gap_1p5()
1798            .flex_wrap()
1799            .justify_end();
1800        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1801            Some(feedback) => feedback_container
1802                .child(
1803                    div().visible_on_hover("feedback_container").child(
1804                        Label::new(match feedback {
1805                            ThreadFeedback::Positive => "Thanks for your feedback!",
1806                            ThreadFeedback::Negative => {
1807                                "We appreciate your feedback and will use it to improve."
1808                            }
1809                        })
1810                    .color(Color::Muted)
1811                    .size(LabelSize::XSmall)
1812                    .truncate())
1813                )
1814                .child(
1815                    h_flex()
1816                        .child(
1817                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1818                                .icon_size(IconSize::XSmall)
1819                                .icon_color(match feedback {
1820                                    ThreadFeedback::Positive => Color::Accent,
1821                                    ThreadFeedback::Negative => Color::Ignored,
1822                                })
1823                                .tooltip(Tooltip::text("Helpful Response"))
1824                                .on_click(cx.listener(move |this, _, window, cx| {
1825                                    this.handle_feedback_click(
1826                                        message_id,
1827                                        ThreadFeedback::Positive,
1828                                        window,
1829                                        cx,
1830                                    );
1831                                })),
1832                        )
1833                        .child(
1834                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1835                                .icon_size(IconSize::XSmall)
1836                                .icon_color(match feedback {
1837                                    ThreadFeedback::Positive => Color::Ignored,
1838                                    ThreadFeedback::Negative => Color::Accent,
1839                                })
1840                                .tooltip(Tooltip::text("Not Helpful"))
1841                                .on_click(cx.listener(move |this, _, window, cx| {
1842                                    this.handle_feedback_click(
1843                                        message_id,
1844                                        ThreadFeedback::Negative,
1845                                        window,
1846                                        cx,
1847                                    );
1848                                })),
1849                        )
1850                        .child(open_as_markdown),
1851                )
1852                .into_any_element(),
1853            None if AssistantSettings::get_global(cx).enable_feedback =>
1854                feedback_container
1855                .child(
1856                    div().visible_on_hover("feedback_container").child(
1857                        Label::new(
1858                            "Rating the thread sends all of your current conversation to the Zed team.",
1859                        )
1860                        .color(Color::Muted)
1861                    .size(LabelSize::XSmall)
1862                    .truncate())
1863                )
1864                .child(
1865                    h_flex()
1866                        .child(
1867                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1868                                .icon_size(IconSize::XSmall)
1869                                .icon_color(Color::Ignored)
1870                                .tooltip(Tooltip::text("Helpful Response"))
1871                                .on_click(cx.listener(move |this, _, window, cx| {
1872                                    this.handle_feedback_click(
1873                                        message_id,
1874                                        ThreadFeedback::Positive,
1875                                        window,
1876                                        cx,
1877                                    );
1878                                })),
1879                        )
1880                        .child(
1881                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1882                                .icon_size(IconSize::XSmall)
1883                                .icon_color(Color::Ignored)
1884                                .tooltip(Tooltip::text("Not Helpful"))
1885                                .on_click(cx.listener(move |this, _, window, cx| {
1886                                    this.handle_feedback_click(
1887                                        message_id,
1888                                        ThreadFeedback::Negative,
1889                                        window,
1890                                        cx,
1891                                    );
1892                                })),
1893                        )
1894                        .child(open_as_markdown),
1895                )
1896                .into_any_element(),
1897            None => feedback_container
1898                .child(h_flex().child(open_as_markdown))
1899                .into_any_element(),
1900        };
1901
1902        let message_is_empty = message.should_display_content();
1903        let has_content = !message_is_empty || !added_context.is_empty();
1904
1905        let message_content = has_content.then(|| {
1906            if let Some(state) = editing_message_state.as_ref() {
1907                self.render_edit_message_editor(state, window, cx)
1908                    .into_any_element()
1909            } else {
1910                v_flex()
1911                    .w_full()
1912                    .gap_1()
1913                    .when(!message_is_empty, |parent| {
1914                        parent.child(div().min_h_6().child(self.render_message_content(
1915                            message_id,
1916                            rendered_message,
1917                            has_tool_uses,
1918                            workspace.clone(),
1919                            window,
1920                            cx,
1921                        )))
1922                    })
1923                    .when(!added_context.is_empty(), |parent| {
1924                        parent.child(h_flex().flex_wrap().gap_1().children(
1925                            added_context.into_iter().map(|added_context| {
1926                                let context = added_context.handle.clone();
1927                                ContextPill::added(added_context, false, false, None).on_click(
1928                                    Rc::new(cx.listener({
1929                                        let workspace = workspace.clone();
1930                                        move |_, _, window, cx| {
1931                                            if let Some(workspace) = workspace.upgrade() {
1932                                                open_context(&context, workspace, window, cx);
1933                                                cx.notify();
1934                                            }
1935                                        }
1936                                    })),
1937                                )
1938                            }),
1939                        ))
1940                    })
1941                    .into_any_element()
1942            }
1943        });
1944
1945        let styled_message = match message.role {
1946            Role::User => v_flex()
1947                .id(("message-container", ix))
1948                .pt_2()
1949                .pl_2()
1950                .pr_2p5()
1951                .pb_4()
1952                .child(
1953                    v_flex()
1954                        .id(("user-message", ix))
1955                        .bg(editor_bg_color)
1956                        .rounded_lg()
1957                        .shadow_md()
1958                        .border_1()
1959                        .border_color(colors.border)
1960                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1961                        .cursor_pointer()
1962                        .child(
1963                            h_flex()
1964                                .p_2p5()
1965                                .gap_1()
1966                                .children(message_content)
1967                                .when_some(editing_message_state, |this, state| {
1968                                    let focus_handle = state.editor.focus_handle(cx).clone();
1969                                    this.w_full().justify_between().child(
1970                                        h_flex()
1971                                            .gap_0p5()
1972                                            .child(
1973                                                IconButton::new(
1974                                                    "cancel-edit-message",
1975                                                    IconName::Close,
1976                                                )
1977                                                .shape(ui::IconButtonShape::Square)
1978                                                .icon_color(Color::Error)
1979                                                .tooltip({
1980                                                    let focus_handle = focus_handle.clone();
1981                                                    move |window, cx| {
1982                                                        Tooltip::for_action_in(
1983                                                            "Cancel Edit",
1984                                                            &menu::Cancel,
1985                                                            &focus_handle,
1986                                                            window,
1987                                                            cx,
1988                                                        )
1989                                                    }
1990                                                })
1991                                                .on_click(cx.listener(Self::handle_cancel_click)),
1992                                            )
1993                                            .child(
1994                                                IconButton::new(
1995                                                    "confirm-edit-message",
1996                                                    IconName::Check,
1997                                                )
1998                                                .disabled(state.editor.read(cx).is_empty(cx))
1999                                                .shape(ui::IconButtonShape::Square)
2000                                                .icon_color(Color::Success)
2001                                                .tooltip({
2002                                                    let focus_handle = focus_handle.clone();
2003                                                    move |window, cx| {
2004                                                        Tooltip::for_action_in(
2005                                                            "Regenerate",
2006                                                            &menu::Confirm,
2007                                                            &focus_handle,
2008                                                            window,
2009                                                            cx,
2010                                                        )
2011                                                    }
2012                                                })
2013                                                .on_click(
2014                                                    cx.listener(Self::handle_regenerate_click),
2015                                                ),
2016                                            ),
2017                                    )
2018                                }),
2019                        )
2020                        .when(editing_message_state.is_none(), |this| {
2021                            this.tooltip(Tooltip::text("Click To Edit"))
2022                        })
2023                        .on_click(cx.listener({
2024                            let message_segments = message.segments.clone();
2025                            move |this, _, window, cx| {
2026                                this.start_editing_message(
2027                                    message_id,
2028                                    &message_segments,
2029                                    &message_creases,
2030                                    window,
2031                                    cx,
2032                                );
2033                            }
2034                        })),
2035                ),
2036            Role::Assistant => v_flex()
2037                .id(("message-container", ix))
2038                .px(RESPONSE_PADDING_X)
2039                .gap_2()
2040                .children(message_content)
2041                .when(has_tool_uses, |parent| {
2042                    parent.children(tool_uses.into_iter().map(|tool_use| {
2043                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2044                    }))
2045                }),
2046            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2047                v_flex()
2048                    .bg(colors.editor_background)
2049                    .rounded_sm()
2050                    .child(div().p_4().children(message_content)),
2051            ),
2052        };
2053
2054        let after_editing_message = self
2055            .editing_message
2056            .as_ref()
2057            .map_or(false, |(editing_message_id, _)| {
2058                message_id > *editing_message_id
2059            });
2060
2061        let panel_background = cx.theme().colors().panel_background;
2062
2063        v_flex()
2064            .w_full()
2065            .map(|parent| {
2066                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2067                    let mut is_pending = false;
2068                    let mut error = None;
2069                    if let Some(last_restore_checkpoint) =
2070                        self.thread.read(cx).last_restore_checkpoint()
2071                    {
2072                        if last_restore_checkpoint.message_id() == message_id {
2073                            match last_restore_checkpoint {
2074                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2075                                LastRestoreCheckpoint::Error { error: err, .. } => {
2076                                    error = Some(err.clone());
2077                                }
2078                            }
2079                        }
2080                    }
2081
2082                    let restore_checkpoint_button =
2083                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2084                            .icon(if error.is_some() {
2085                                IconName::XCircle
2086                            } else {
2087                                IconName::Undo
2088                            })
2089                            .icon_size(IconSize::XSmall)
2090                            .icon_position(IconPosition::Start)
2091                            .icon_color(if error.is_some() {
2092                                Some(Color::Error)
2093                            } else {
2094                                None
2095                            })
2096                            .label_size(LabelSize::XSmall)
2097                            .disabled(is_pending)
2098                            .on_click(cx.listener(move |this, _, _window, cx| {
2099                                this.thread.update(cx, |thread, cx| {
2100                                    thread
2101                                        .restore_checkpoint(checkpoint.clone(), cx)
2102                                        .detach_and_log_err(cx);
2103                                });
2104                            }));
2105
2106                    let restore_checkpoint_button = if is_pending {
2107                        restore_checkpoint_button
2108                            .with_animation(
2109                                ("pulsating-restore-checkpoint-button", ix),
2110                                Animation::new(Duration::from_secs(2))
2111                                    .repeat()
2112                                    .with_easing(pulsating_between(0.6, 1.)),
2113                                |label, delta| label.alpha(delta),
2114                            )
2115                            .into_any_element()
2116                    } else if let Some(error) = error {
2117                        restore_checkpoint_button
2118                            .tooltip(Tooltip::text(error.to_string()))
2119                            .into_any_element()
2120                    } else {
2121                        restore_checkpoint_button.into_any_element()
2122                    };
2123
2124                    parent.child(
2125                        h_flex()
2126                            .pt_2p5()
2127                            .px_2p5()
2128                            .w_full()
2129                            .gap_1()
2130                            .child(ui::Divider::horizontal())
2131                            .child(restore_checkpoint_button)
2132                            .child(ui::Divider::horizontal()),
2133                    )
2134                } else {
2135                    parent
2136                }
2137            })
2138            .when(is_first_message, |parent| {
2139                parent.child(self.render_rules_item(cx))
2140            })
2141            .child(styled_message)
2142            .when(is_generating && is_last_message, |this| {
2143                this.child(
2144                    h_flex()
2145                        .h_8()
2146                        .mt_2()
2147                        .mb_4()
2148                        .ml_4()
2149                        .py_1p5()
2150                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2151                )
2152            })
2153            .when(show_feedback, move |parent| {
2154                parent.child(feedback_items).when_some(
2155                    self.open_feedback_editors.get(&message_id),
2156                    move |parent, feedback_editor| {
2157                        let focus_handle = feedback_editor.focus_handle(cx);
2158                        parent.child(
2159                            v_flex()
2160                                .key_context("AgentFeedbackMessageEditor")
2161                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2162                                    this.open_feedback_editors.remove(&message_id);
2163                                    cx.notify();
2164                                }))
2165                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2166                                    this.submit_feedback_message(message_id, cx);
2167                                    cx.notify();
2168                                }))
2169                                .on_action(cx.listener(Self::confirm_editing_message))
2170                                .mb_2()
2171                                .mx_4()
2172                                .p_2()
2173                                .rounded_md()
2174                                .border_1()
2175                                .border_color(cx.theme().colors().border)
2176                                .bg(cx.theme().colors().editor_background)
2177                                .child(feedback_editor.clone())
2178                                .child(
2179                                    h_flex()
2180                                        .gap_1()
2181                                        .justify_end()
2182                                        .child(
2183                                            Button::new("dismiss-feedback-message", "Cancel")
2184                                                .label_size(LabelSize::Small)
2185                                                .key_binding(
2186                                                    KeyBinding::for_action_in(
2187                                                        &menu::Cancel,
2188                                                        &focus_handle,
2189                                                        window,
2190                                                        cx,
2191                                                    )
2192                                                    .map(|kb| kb.size(rems_from_px(10.))),
2193                                                )
2194                                                .on_click(cx.listener(
2195                                                    move |this, _, _window, cx| {
2196                                                        this.open_feedback_editors
2197                                                            .remove(&message_id);
2198                                                        cx.notify();
2199                                                    },
2200                                                )),
2201                                        )
2202                                        .child(
2203                                            Button::new(
2204                                                "submit-feedback-message",
2205                                                "Share Feedback",
2206                                            )
2207                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2208                                            .label_size(LabelSize::Small)
2209                                            .key_binding(
2210                                                KeyBinding::for_action_in(
2211                                                    &menu::Confirm,
2212                                                    &focus_handle,
2213                                                    window,
2214                                                    cx,
2215                                                )
2216                                                .map(|kb| kb.size(rems_from_px(10.))),
2217                                            )
2218                                            .on_click(
2219                                                cx.listener(move |this, _, _window, cx| {
2220                                                    this.submit_feedback_message(message_id, cx);
2221                                                    cx.notify()
2222                                                }),
2223                                            ),
2224                                        ),
2225                                ),
2226                        )
2227                    },
2228                )
2229            })
2230            .when(after_editing_message, |parent| {
2231                // Backdrop to dim out the whole thread below the editing user message
2232                parent.relative().child(
2233                    div()
2234                        .stop_mouse_events_except_scroll()
2235                        .absolute()
2236                        .inset_0()
2237                        .size_full()
2238                        .bg(panel_background)
2239                        .opacity(0.8),
2240                )
2241            })
2242            .into_any()
2243    }
2244
2245    fn render_message_content(
2246        &self,
2247        message_id: MessageId,
2248        rendered_message: &RenderedMessage,
2249        has_tool_uses: bool,
2250        workspace: WeakEntity<Workspace>,
2251        window: &Window,
2252        cx: &Context<Self>,
2253    ) -> impl IntoElement {
2254        let is_last_message = self.messages.last() == Some(&message_id);
2255        let is_generating = self.thread.read(cx).is_generating();
2256        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2257            rendered_message
2258                .segments
2259                .iter()
2260                .enumerate()
2261                .next_back()
2262                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2263                .map(|(index, _)| index)
2264        } else {
2265            None
2266        };
2267
2268        let message_role = self
2269            .thread
2270            .read(cx)
2271            .message(message_id)
2272            .map(|m| m.role)
2273            .unwrap_or(Role::User);
2274
2275        let is_assistant_message = message_role == Role::Assistant;
2276        let is_user_message = message_role == Role::User;
2277
2278        v_flex()
2279            .text_ui(cx)
2280            .gap_2()
2281            .when(is_user_message, |this| this.text_xs())
2282            .children(
2283                rendered_message.segments.iter().enumerate().map(
2284                    |(index, segment)| match segment {
2285                        RenderedMessageSegment::Thinking {
2286                            content,
2287                            scroll_handle,
2288                        } => self
2289                            .render_message_thinking_segment(
2290                                message_id,
2291                                index,
2292                                content.clone(),
2293                                &scroll_handle,
2294                                Some(index) == pending_thinking_segment_index,
2295                                window,
2296                                cx,
2297                            )
2298                            .into_any_element(),
2299                        RenderedMessageSegment::Text(markdown) => {
2300                            let markdown_element = MarkdownElement::new(
2301                                markdown.clone(),
2302                                if is_user_message {
2303                                    let mut style = default_markdown_style(window, cx);
2304                                    let mut text_style = window.text_style();
2305                                    let theme_settings = ThemeSettings::get_global(cx);
2306
2307                                    let buffer_font = theme_settings.buffer_font.family.clone();
2308                                    let buffer_font_size = TextSize::Small.rems(cx);
2309
2310                                    text_style.refine(&TextStyleRefinement {
2311                                        font_family: Some(buffer_font),
2312                                        font_size: Some(buffer_font_size.into()),
2313                                        ..Default::default()
2314                                    });
2315
2316                                    style.base_text_style = text_style;
2317                                    style
2318                                } else {
2319                                    default_markdown_style(window, cx)
2320                                },
2321                            );
2322
2323                            let markdown_element = if is_assistant_message {
2324                                markdown_element.code_block_renderer(
2325                                    markdown::CodeBlockRenderer::Custom {
2326                                        render: Arc::new({
2327                                            let workspace = workspace.clone();
2328                                            let active_thread = cx.entity();
2329                                            move |kind,
2330                                                  parsed_markdown,
2331                                                  range,
2332                                                  metadata,
2333                                                  window,
2334                                                  cx| {
2335                                                render_markdown_code_block(
2336                                                    message_id,
2337                                                    range.start,
2338                                                    kind,
2339                                                    parsed_markdown,
2340                                                    metadata,
2341                                                    active_thread.clone(),
2342                                                    workspace.clone(),
2343                                                    window,
2344                                                    cx,
2345                                                )
2346                                            }
2347                                        }),
2348                                        transform: Some(Arc::new({
2349                                            let active_thread = cx.entity();
2350                                            let editor_bg = cx.theme().colors().editor_background;
2351
2352                                            move |el, range, metadata, _, cx| {
2353                                                let can_expand = metadata.line_count
2354                                                    >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
2355                                                if !can_expand {
2356                                                    return el;
2357                                                }
2358
2359                                                let is_expanded = active_thread
2360                                                    .read(cx)
2361                                                    .is_codeblock_expanded(message_id, range.start);
2362                                                if is_expanded {
2363                                                    return el;
2364                                                }
2365
2366                                                el.child(
2367                                                    div()
2368                                                        .absolute()
2369                                                        .bottom_0()
2370                                                        .left_0()
2371                                                        .w_full()
2372                                                        .h_1_4()
2373                                                        .rounded_b_lg()
2374                                                        .bg(linear_gradient(
2375                                                            0.,
2376                                                            linear_color_stop(editor_bg, 0.),
2377                                                            linear_color_stop(
2378                                                                editor_bg.opacity(0.),
2379                                                                1.,
2380                                                            ),
2381                                                        )),
2382                                                )
2383                                            }
2384                                        })),
2385                                    },
2386                                )
2387                            } else {
2388                                markdown_element.code_block_renderer(
2389                                    markdown::CodeBlockRenderer::Default {
2390                                        copy_button: false,
2391                                        copy_button_on_hover: false,
2392                                        border: true,
2393                                    },
2394                                )
2395                            };
2396
2397                            div()
2398                                .child(markdown_element.on_url_click({
2399                                    let workspace = self.workspace.clone();
2400                                    move |text, window, cx| {
2401                                        open_markdown_link(text, workspace.clone(), window, cx);
2402                                    }
2403                                }))
2404                                .into_any_element()
2405                        }
2406                    },
2407                ),
2408            )
2409    }
2410
2411    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2412        cx.theme().colors().border.opacity(0.5)
2413    }
2414
2415    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2416        cx.theme()
2417            .colors()
2418            .element_background
2419            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2420    }
2421
2422    fn render_message_thinking_segment(
2423        &self,
2424        message_id: MessageId,
2425        ix: usize,
2426        markdown: Entity<Markdown>,
2427        scroll_handle: &ScrollHandle,
2428        pending: bool,
2429        window: &Window,
2430        cx: &Context<Self>,
2431    ) -> impl IntoElement {
2432        let is_open = self
2433            .expanded_thinking_segments
2434            .get(&(message_id, ix))
2435            .copied()
2436            .unwrap_or_default();
2437
2438        let editor_bg = cx.theme().colors().panel_background;
2439
2440        div().map(|this| {
2441            if pending {
2442                this.v_flex()
2443                    .mt_neg_2()
2444                    .mb_1p5()
2445                    .child(
2446                        h_flex()
2447                            .group("disclosure-header")
2448                            .justify_between()
2449                            .child(
2450                                h_flex()
2451                                    .gap_1p5()
2452                                    .child(
2453                                        Icon::new(IconName::LightBulb)
2454                                            .size(IconSize::XSmall)
2455                                            .color(Color::Muted),
2456                                    )
2457                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2458                            )
2459                            .child(
2460                                h_flex()
2461                                    .gap_1()
2462                                    .child(
2463                                        div().visible_on_hover("disclosure-header").child(
2464                                            Disclosure::new("thinking-disclosure", is_open)
2465                                                .opened_icon(IconName::ChevronUp)
2466                                                .closed_icon(IconName::ChevronDown)
2467                                                .on_click(cx.listener({
2468                                                    move |this, _event, _window, _cx| {
2469                                                        let is_open = this
2470                                                            .expanded_thinking_segments
2471                                                            .entry((message_id, ix))
2472                                                            .or_insert(false);
2473
2474                                                        *is_open = !*is_open;
2475                                                    }
2476                                                })),
2477                                        ),
2478                                    )
2479                                    .child({
2480                                        Icon::new(IconName::ArrowCircle)
2481                                            .color(Color::Accent)
2482                                            .size(IconSize::Small)
2483                                            .with_animation(
2484                                                "arrow-circle",
2485                                                Animation::new(Duration::from_secs(2)).repeat(),
2486                                                |icon, delta| {
2487                                                    icon.transform(Transformation::rotate(
2488                                                        percentage(delta),
2489                                                    ))
2490                                                },
2491                                            )
2492                                    }),
2493                            ),
2494                    )
2495                    .when(!is_open, |this| {
2496                        let gradient_overlay = div()
2497                            .rounded_b_lg()
2498                            .h_full()
2499                            .absolute()
2500                            .w_full()
2501                            .bottom_0()
2502                            .left_0()
2503                            .bg(linear_gradient(
2504                                180.,
2505                                linear_color_stop(editor_bg, 1.),
2506                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2507                            ));
2508
2509                        this.child(
2510                            div()
2511                                .relative()
2512                                .bg(editor_bg)
2513                                .rounded_b_lg()
2514                                .mt_2()
2515                                .pl_4()
2516                                .child(
2517                                    div()
2518                                        .id(("thinking-content", ix))
2519                                        .max_h_20()
2520                                        .track_scroll(scroll_handle)
2521                                        .text_ui_sm(cx)
2522                                        .overflow_hidden()
2523                                        .child(
2524                                            MarkdownElement::new(
2525                                                markdown.clone(),
2526                                                default_markdown_style(window, cx),
2527                                            )
2528                                            .on_url_click({
2529                                                let workspace = self.workspace.clone();
2530                                                move |text, window, cx| {
2531                                                    open_markdown_link(
2532                                                        text,
2533                                                        workspace.clone(),
2534                                                        window,
2535                                                        cx,
2536                                                    );
2537                                                }
2538                                            }),
2539                                        ),
2540                                )
2541                                .child(gradient_overlay),
2542                        )
2543                    })
2544                    .when(is_open, |this| {
2545                        this.child(
2546                            div()
2547                                .id(("thinking-content", ix))
2548                                .h_full()
2549                                .bg(editor_bg)
2550                                .text_ui_sm(cx)
2551                                .child(
2552                                    MarkdownElement::new(
2553                                        markdown.clone(),
2554                                        default_markdown_style(window, cx),
2555                                    )
2556                                    .on_url_click({
2557                                        let workspace = self.workspace.clone();
2558                                        move |text, window, cx| {
2559                                            open_markdown_link(text, workspace.clone(), window, cx);
2560                                        }
2561                                    }),
2562                                ),
2563                        )
2564                    })
2565            } else {
2566                this.v_flex()
2567                    .mt_neg_2()
2568                    .child(
2569                        h_flex()
2570                            .group("disclosure-header")
2571                            .pr_1()
2572                            .justify_between()
2573                            .opacity(0.8)
2574                            .hover(|style| style.opacity(1.))
2575                            .child(
2576                                h_flex()
2577                                    .gap_1p5()
2578                                    .child(
2579                                        Icon::new(IconName::LightBulb)
2580                                            .size(IconSize::XSmall)
2581                                            .color(Color::Muted),
2582                                    )
2583                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2584                            )
2585                            .child(
2586                                div().visible_on_hover("disclosure-header").child(
2587                                    Disclosure::new("thinking-disclosure", is_open)
2588                                        .opened_icon(IconName::ChevronUp)
2589                                        .closed_icon(IconName::ChevronDown)
2590                                        .on_click(cx.listener({
2591                                            move |this, _event, _window, _cx| {
2592                                                let is_open = this
2593                                                    .expanded_thinking_segments
2594                                                    .entry((message_id, ix))
2595                                                    .or_insert(false);
2596
2597                                                *is_open = !*is_open;
2598                                            }
2599                                        })),
2600                                ),
2601                            ),
2602                    )
2603                    .child(
2604                        div()
2605                            .id(("thinking-content", ix))
2606                            .relative()
2607                            .mt_1p5()
2608                            .ml_1p5()
2609                            .pl_2p5()
2610                            .border_l_1()
2611                            .border_color(cx.theme().colors().border_variant)
2612                            .text_ui_sm(cx)
2613                            .when(is_open, |this| {
2614                                this.child(
2615                                    MarkdownElement::new(
2616                                        markdown.clone(),
2617                                        default_markdown_style(window, cx),
2618                                    )
2619                                    .on_url_click({
2620                                        let workspace = self.workspace.clone();
2621                                        move |text, window, cx| {
2622                                            open_markdown_link(text, workspace.clone(), window, cx);
2623                                        }
2624                                    }),
2625                                )
2626                            }),
2627                    )
2628            }
2629        })
2630    }
2631
2632    fn render_tool_use(
2633        &self,
2634        tool_use: ToolUse,
2635        window: &mut Window,
2636        workspace: WeakEntity<Workspace>,
2637        cx: &mut Context<Self>,
2638    ) -> impl IntoElement + use<> {
2639        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2640            return card.render(&tool_use.status, window, workspace, cx);
2641        }
2642
2643        let is_open = self
2644            .expanded_tool_uses
2645            .get(&tool_use.id)
2646            .copied()
2647            .unwrap_or_default();
2648
2649        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2650
2651        let fs = self
2652            .workspace
2653            .upgrade()
2654            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2655        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2656        let needs_confirmation_tools = tool_use.needs_confirmation;
2657
2658        let status_icons = div().child(match &tool_use.status {
2659            ToolUseStatus::NeedsConfirmation => {
2660                let icon = Icon::new(IconName::Warning)
2661                    .color(Color::Warning)
2662                    .size(IconSize::Small);
2663                icon.into_any_element()
2664            }
2665            ToolUseStatus::Pending
2666            | ToolUseStatus::InputStillStreaming
2667            | ToolUseStatus::Running => {
2668                let icon = Icon::new(IconName::ArrowCircle)
2669                    .color(Color::Accent)
2670                    .size(IconSize::Small);
2671                icon.with_animation(
2672                    "arrow-circle",
2673                    Animation::new(Duration::from_secs(2)).repeat(),
2674                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2675                )
2676                .into_any_element()
2677            }
2678            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2679            ToolUseStatus::Error(_) => {
2680                let icon = Icon::new(IconName::Close)
2681                    .color(Color::Error)
2682                    .size(IconSize::Small);
2683                icon.into_any_element()
2684            }
2685        });
2686
2687        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2688        let results_content_container = || v_flex().p_2().gap_0p5();
2689
2690        let results_content = v_flex()
2691            .gap_1()
2692            .child(
2693                results_content_container()
2694                    .child(
2695                        Label::new("Input")
2696                            .size(LabelSize::XSmall)
2697                            .color(Color::Muted)
2698                            .buffer_font(cx),
2699                    )
2700                    .child(
2701                        div()
2702                            .w_full()
2703                            .text_ui_sm(cx)
2704                            .children(rendered_tool_use.as_ref().map(|rendered| {
2705                                MarkdownElement::new(
2706                                    rendered.input.clone(),
2707                                    tool_use_markdown_style(window, cx),
2708                                )
2709                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2710                                    copy_button: false,
2711                                    copy_button_on_hover: false,
2712                                    border: false,
2713                                })
2714                                .on_url_click({
2715                                    let workspace = self.workspace.clone();
2716                                    move |text, window, cx| {
2717                                        open_markdown_link(text, workspace.clone(), window, cx);
2718                                    }
2719                                })
2720                            })),
2721                    ),
2722            )
2723            .map(|container| match tool_use.status {
2724                ToolUseStatus::Finished(_) => container.child(
2725                    results_content_container()
2726                        .border_t_1()
2727                        .border_color(self.tool_card_border_color(cx))
2728                        .child(
2729                            Label::new("Result")
2730                                .size(LabelSize::XSmall)
2731                                .color(Color::Muted)
2732                                .buffer_font(cx),
2733                        )
2734                        .child(div().w_full().text_ui_sm(cx).children(
2735                            rendered_tool_use.as_ref().map(|rendered| {
2736                                MarkdownElement::new(
2737                                    rendered.output.clone(),
2738                                    tool_use_markdown_style(window, cx),
2739                                )
2740                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2741                                    copy_button: false,
2742                                    copy_button_on_hover: false,
2743                                    border: false,
2744                                })
2745                                .on_url_click({
2746                                    let workspace = self.workspace.clone();
2747                                    move |text, window, cx| {
2748                                        open_markdown_link(text, workspace.clone(), window, cx);
2749                                    }
2750                                })
2751                                .into_any_element()
2752                            }),
2753                        )),
2754                ),
2755                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2756                    results_content_container()
2757                        .border_t_1()
2758                        .border_color(self.tool_card_border_color(cx))
2759                        .child(
2760                            h_flex()
2761                                .gap_1()
2762                                .child(
2763                                    Icon::new(IconName::ArrowCircle)
2764                                        .size(IconSize::Small)
2765                                        .color(Color::Accent)
2766                                        .with_animation(
2767                                            "arrow-circle",
2768                                            Animation::new(Duration::from_secs(2)).repeat(),
2769                                            |icon, delta| {
2770                                                icon.transform(Transformation::rotate(percentage(
2771                                                    delta,
2772                                                )))
2773                                            },
2774                                        ),
2775                                )
2776                                .child(
2777                                    Label::new("Running…")
2778                                        .size(LabelSize::XSmall)
2779                                        .color(Color::Muted)
2780                                        .buffer_font(cx),
2781                                ),
2782                        ),
2783                ),
2784                ToolUseStatus::Error(_) => container.child(
2785                    results_content_container()
2786                        .border_t_1()
2787                        .border_color(self.tool_card_border_color(cx))
2788                        .child(
2789                            Label::new("Error")
2790                                .size(LabelSize::XSmall)
2791                                .color(Color::Muted)
2792                                .buffer_font(cx),
2793                        )
2794                        .child(
2795                            div()
2796                                .text_ui_sm(cx)
2797                                .children(rendered_tool_use.as_ref().map(|rendered| {
2798                                    MarkdownElement::new(
2799                                        rendered.output.clone(),
2800                                        tool_use_markdown_style(window, cx),
2801                                    )
2802                                    .on_url_click({
2803                                        let workspace = self.workspace.clone();
2804                                        move |text, window, cx| {
2805                                            open_markdown_link(text, workspace.clone(), window, cx);
2806                                        }
2807                                    })
2808                                    .into_any_element()
2809                                })),
2810                        ),
2811                ),
2812                ToolUseStatus::Pending => container,
2813                ToolUseStatus::NeedsConfirmation => container.child(
2814                    results_content_container()
2815                        .border_t_1()
2816                        .border_color(self.tool_card_border_color(cx))
2817                        .child(
2818                            Label::new("Asking Permission")
2819                                .size(LabelSize::Small)
2820                                .color(Color::Muted)
2821                                .buffer_font(cx),
2822                        ),
2823                ),
2824            });
2825
2826        let gradient_overlay = |color: Hsla| {
2827            div()
2828                .h_full()
2829                .absolute()
2830                .w_12()
2831                .bottom_0()
2832                .map(|element| {
2833                    if is_status_finished {
2834                        element.right_6()
2835                    } else {
2836                        element.right(px(44.))
2837                    }
2838                })
2839                .bg(linear_gradient(
2840                    90.,
2841                    linear_color_stop(color, 1.),
2842                    linear_color_stop(color.opacity(0.2), 0.),
2843                ))
2844        };
2845
2846        v_flex().gap_1().mb_2().map(|element| {
2847            if !needs_confirmation_tools {
2848                element.child(
2849                    v_flex()
2850                        .child(
2851                            h_flex()
2852                                .group("disclosure-header")
2853                                .relative()
2854                                .gap_1p5()
2855                                .justify_between()
2856                                .opacity(0.8)
2857                                .hover(|style| style.opacity(1.))
2858                                .when(!is_status_finished, |this| this.pr_2())
2859                                .child(
2860                                    h_flex()
2861                                        .id("tool-label-container")
2862                                        .gap_1p5()
2863                                        .max_w_full()
2864                                        .overflow_x_scroll()
2865                                        .child(
2866                                            Icon::new(tool_use.icon)
2867                                                .size(IconSize::XSmall)
2868                                                .color(Color::Muted),
2869                                        )
2870                                        .child(
2871                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2872                                                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| {
2873                                                    open_markdown_link(text, workspace.clone(), window, cx);
2874                                                }}))
2875                                            ),
2876                                        ),
2877                                )
2878                                .child(
2879                                    h_flex()
2880                                        .gap_1()
2881                                        .child(
2882                                            div().visible_on_hover("disclosure-header").child(
2883                                                Disclosure::new("tool-use-disclosure", is_open)
2884                                                    .opened_icon(IconName::ChevronUp)
2885                                                    .closed_icon(IconName::ChevronDown)
2886                                                    .on_click(cx.listener({
2887                                                        let tool_use_id = tool_use.id.clone();
2888                                                        move |this, _event, _window, _cx| {
2889                                                            let is_open = this
2890                                                                .expanded_tool_uses
2891                                                                .entry(tool_use_id.clone())
2892                                                                .or_insert(false);
2893
2894                                                            *is_open = !*is_open;
2895                                                        }
2896                                                    })),
2897                                            ),
2898                                        )
2899                                        .child(status_icons),
2900                                )
2901                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2902                        )
2903                        .map(|parent| {
2904                            if !is_open {
2905                                return parent;
2906                            }
2907
2908                            parent.child(
2909                                v_flex()
2910                                    .mt_1()
2911                                    .border_1()
2912                                    .border_color(self.tool_card_border_color(cx))
2913                                    .bg(cx.theme().colors().editor_background)
2914                                    .rounded_lg()
2915                                    .child(results_content),
2916                            )
2917                        }),
2918                )
2919            } else {
2920                v_flex()
2921                    .mb_2()
2922                    .rounded_lg()
2923                    .border_1()
2924                    .border_color(self.tool_card_border_color(cx))
2925                    .overflow_hidden()
2926                    .child(
2927                        h_flex()
2928                            .group("disclosure-header")
2929                            .relative()
2930                            .justify_between()
2931                            .py_1()
2932                            .map(|element| {
2933                                if is_status_finished {
2934                                    element.pl_2().pr_0p5()
2935                                } else {
2936                                    element.px_2()
2937                                }
2938                            })
2939                            .bg(self.tool_card_header_bg(cx))
2940                            .map(|element| {
2941                                if is_open {
2942                                    element.border_b_1().rounded_t_md()
2943                                } else if needs_confirmation {
2944                                    element.rounded_t_md()
2945                                } else {
2946                                    element.rounded_md()
2947                                }
2948                            })
2949                            .border_color(self.tool_card_border_color(cx))
2950                            .child(
2951                                h_flex()
2952                                    .id("tool-label-container")
2953                                    .gap_1p5()
2954                                    .max_w_full()
2955                                    .overflow_x_scroll()
2956                                    .child(
2957                                        Icon::new(tool_use.icon)
2958                                            .size(IconSize::XSmall)
2959                                            .color(Color::Muted),
2960                                    )
2961                                    .child(
2962                                        h_flex().pr_8().text_ui_sm(cx).children(
2963                                            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| {
2964                                                open_markdown_link(text, workspace.clone(), window, cx);
2965                                            }}))
2966                                        ),
2967                                    ),
2968                            )
2969                            .child(
2970                                h_flex()
2971                                    .gap_1()
2972                                    .child(
2973                                        div().visible_on_hover("disclosure-header").child(
2974                                            Disclosure::new("tool-use-disclosure", is_open)
2975                                                .opened_icon(IconName::ChevronUp)
2976                                                .closed_icon(IconName::ChevronDown)
2977                                                .on_click(cx.listener({
2978                                                    let tool_use_id = tool_use.id.clone();
2979                                                    move |this, _event, _window, _cx| {
2980                                                        let is_open = this
2981                                                            .expanded_tool_uses
2982                                                            .entry(tool_use_id.clone())
2983                                                            .or_insert(false);
2984
2985                                                        *is_open = !*is_open;
2986                                                    }
2987                                                })),
2988                                        ),
2989                                    )
2990                                    .child(status_icons),
2991                            )
2992                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2993                    )
2994                    .map(|parent| {
2995                        if !is_open {
2996                            return parent;
2997                        }
2998
2999                        parent.child(
3000                            v_flex()
3001                                .bg(cx.theme().colors().editor_background)
3002                                .map(|element| {
3003                                    if  needs_confirmation {
3004                                        element.rounded_none()
3005                                    } else {
3006                                        element.rounded_b_lg()
3007                                    }
3008                                })
3009                                .child(results_content),
3010                        )
3011                    })
3012                    .when(needs_confirmation, |this| {
3013                        this.child(
3014                            h_flex()
3015                                .py_1()
3016                                .pl_2()
3017                                .pr_1()
3018                                .gap_1()
3019                                .justify_between()
3020                                .bg(cx.theme().colors().editor_background)
3021                                .border_t_1()
3022                                .border_color(self.tool_card_border_color(cx))
3023                                .rounded_b_lg()
3024                                .child(
3025                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3026                                )
3027                                .child(
3028                                    h_flex()
3029                                        .gap_0p5()
3030                                        .child({
3031                                            let tool_id = tool_use.id.clone();
3032                                            Button::new(
3033                                                "always-allow-tool-action",
3034                                                "Always Allow",
3035                                            )
3036                                            .label_size(LabelSize::Small)
3037                                            .icon(IconName::CheckDouble)
3038                                            .icon_position(IconPosition::Start)
3039                                            .icon_size(IconSize::Small)
3040                                            .icon_color(Color::Success)
3041                                            .tooltip(move |window, cx|  {
3042                                                Tooltip::with_meta(
3043                                                    "Never ask for permission",
3044                                                    None,
3045                                                    "Restore the original behavior in your Agent Panel settings",
3046                                                    window,
3047                                                    cx,
3048                                                )
3049                                            })
3050                                            .on_click(cx.listener(
3051                                                move |this, event, window, cx| {
3052                                                    if let Some(fs) = fs.clone() {
3053                                                        update_settings_file::<AssistantSettings>(
3054                                                            fs.clone(),
3055                                                            cx,
3056                                                            |settings, _| {
3057                                                                settings.set_always_allow_tool_actions(true);
3058                                                            },
3059                                                        );
3060                                                    }
3061                                                    this.handle_allow_tool(
3062                                                        tool_id.clone(),
3063                                                        event,
3064                                                        window,
3065                                                        cx,
3066                                                    )
3067                                                },
3068                                            ))
3069                                        })
3070                                        .child(ui::Divider::vertical())
3071                                        .child({
3072                                            let tool_id = tool_use.id.clone();
3073                                            Button::new("allow-tool-action", "Allow")
3074                                                .label_size(LabelSize::Small)
3075                                                .icon(IconName::Check)
3076                                                .icon_position(IconPosition::Start)
3077                                                .icon_size(IconSize::Small)
3078                                                .icon_color(Color::Success)
3079                                                .on_click(cx.listener(
3080                                                    move |this, event, window, cx| {
3081                                                        this.handle_allow_tool(
3082                                                            tool_id.clone(),
3083                                                            event,
3084                                                            window,
3085                                                            cx,
3086                                                        )
3087                                                    },
3088                                                ))
3089                                        })
3090                                        .child({
3091                                            let tool_id = tool_use.id.clone();
3092                                            let tool_name: Arc<str> = tool_use.name.into();
3093                                            Button::new("deny-tool", "Deny")
3094                                                .label_size(LabelSize::Small)
3095                                                .icon(IconName::Close)
3096                                                .icon_position(IconPosition::Start)
3097                                                .icon_size(IconSize::Small)
3098                                                .icon_color(Color::Error)
3099                                                .on_click(cx.listener(
3100                                                    move |this, event, window, cx| {
3101                                                        this.handle_deny_tool(
3102                                                            tool_id.clone(),
3103                                                            tool_name.clone(),
3104                                                            event,
3105                                                            window,
3106                                                            cx,
3107                                                        )
3108                                                    },
3109                                                ))
3110                                        }),
3111                                ),
3112                        )
3113                    })
3114            }
3115        }).into_any_element()
3116    }
3117
3118    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3119        let project_context = self.thread.read(cx).project_context();
3120        let project_context = project_context.borrow();
3121        let Some(project_context) = project_context.as_ref() else {
3122            return div().into_any();
3123        };
3124
3125        let user_rules_text = if project_context.user_rules.is_empty() {
3126            None
3127        } else if project_context.user_rules.len() == 1 {
3128            let user_rules = &project_context.user_rules[0];
3129
3130            match user_rules.title.as_ref() {
3131                Some(title) => Some(format!("Using \"{title}\" user rule")),
3132                None => Some("Using user rule".into()),
3133            }
3134        } else {
3135            Some(format!(
3136                "Using {} user rules",
3137                project_context.user_rules.len()
3138            ))
3139        };
3140
3141        let first_user_rules_id = project_context
3142            .user_rules
3143            .first()
3144            .map(|user_rules| user_rules.uuid.0);
3145
3146        let rules_files = project_context
3147            .worktrees
3148            .iter()
3149            .filter_map(|worktree| worktree.rules_file.as_ref())
3150            .collect::<Vec<_>>();
3151
3152        let rules_file_text = match rules_files.as_slice() {
3153            &[] => None,
3154            &[rules_file] => Some(format!(
3155                "Using project {:?} file",
3156                rules_file.path_in_worktree
3157            )),
3158            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3159        };
3160
3161        if user_rules_text.is_none() && rules_file_text.is_none() {
3162            return div().into_any();
3163        }
3164
3165        v_flex()
3166            .pt_2()
3167            .px_2p5()
3168            .gap_1()
3169            .when_some(user_rules_text, |parent, user_rules_text| {
3170                parent.child(
3171                    h_flex()
3172                        .w_full()
3173                        .child(
3174                            Icon::new(RULES_ICON)
3175                                .size(IconSize::XSmall)
3176                                .color(Color::Disabled),
3177                        )
3178                        .child(
3179                            Label::new(user_rules_text)
3180                                .size(LabelSize::XSmall)
3181                                .color(Color::Muted)
3182                                .truncate()
3183                                .buffer_font(cx)
3184                                .ml_1p5()
3185                                .mr_0p5(),
3186                        )
3187                        .child(
3188                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3189                                .shape(ui::IconButtonShape::Square)
3190                                .icon_size(IconSize::XSmall)
3191                                .icon_color(Color::Ignored)
3192                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3193                                .tooltip(Tooltip::text("View User Rules"))
3194                                .on_click(move |_event, window, cx| {
3195                                    window.dispatch_action(
3196                                        Box::new(OpenRulesLibrary {
3197                                            prompt_to_select: first_user_rules_id,
3198                                        }),
3199                                        cx,
3200                                    )
3201                                }),
3202                        ),
3203                )
3204            })
3205            .when_some(rules_file_text, |parent, rules_file_text| {
3206                parent.child(
3207                    h_flex()
3208                        .w_full()
3209                        .child(
3210                            Icon::new(IconName::File)
3211                                .size(IconSize::XSmall)
3212                                .color(Color::Disabled),
3213                        )
3214                        .child(
3215                            Label::new(rules_file_text)
3216                                .size(LabelSize::XSmall)
3217                                .color(Color::Muted)
3218                                .buffer_font(cx)
3219                                .ml_1p5()
3220                                .mr_0p5(),
3221                        )
3222                        .child(
3223                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3224                                .shape(ui::IconButtonShape::Square)
3225                                .icon_size(IconSize::XSmall)
3226                                .icon_color(Color::Ignored)
3227                                .on_click(cx.listener(Self::handle_open_rules))
3228                                .tooltip(Tooltip::text("View Rules")),
3229                        ),
3230                )
3231            })
3232            .into_any()
3233    }
3234
3235    fn handle_allow_tool(
3236        &mut self,
3237        tool_use_id: LanguageModelToolUseId,
3238        _: &ClickEvent,
3239        window: &mut Window,
3240        cx: &mut Context<Self>,
3241    ) {
3242        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3243            .thread
3244            .read(cx)
3245            .pending_tool(&tool_use_id)
3246            .map(|tool_use| tool_use.status.clone())
3247        {
3248            self.thread.update(cx, |thread, cx| {
3249                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3250                    thread.run_tool(
3251                        c.tool_use_id.clone(),
3252                        c.ui_text.clone(),
3253                        c.input.clone(),
3254                        c.request.clone(),
3255                        c.tool.clone(),
3256                        configured.model,
3257                        Some(window.window_handle()),
3258                        cx,
3259                    );
3260                }
3261            });
3262        }
3263    }
3264
3265    fn handle_deny_tool(
3266        &mut self,
3267        tool_use_id: LanguageModelToolUseId,
3268        tool_name: Arc<str>,
3269        _: &ClickEvent,
3270        window: &mut Window,
3271        cx: &mut Context<Self>,
3272    ) {
3273        let window_handle = window.window_handle();
3274        self.thread.update(cx, |thread, cx| {
3275            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3276        });
3277    }
3278
3279    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3280        let project_context = self.thread.read(cx).project_context();
3281        let project_context = project_context.borrow();
3282        let Some(project_context) = project_context.as_ref() else {
3283            return;
3284        };
3285
3286        let project_entry_ids = project_context
3287            .worktrees
3288            .iter()
3289            .flat_map(|worktree| worktree.rules_file.as_ref())
3290            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3291            .collect::<Vec<_>>();
3292
3293        self.workspace
3294            .update(cx, move |workspace, cx| {
3295                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3296                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3297                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3298                let project = workspace.project().read(cx);
3299                let project_paths = project_entry_ids
3300                    .into_iter()
3301                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3302                    .collect::<Vec<_>>();
3303                for project_path in project_paths {
3304                    workspace
3305                        .open_path(project_path, None, true, window, cx)
3306                        .detach_and_log_err(cx);
3307                }
3308            })
3309            .ok();
3310    }
3311
3312    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3313        for window in self.notifications.drain(..) {
3314            window
3315                .update(cx, |_, window, _| {
3316                    window.remove_window();
3317                })
3318                .ok();
3319
3320            self.notification_subscriptions.remove(&window);
3321        }
3322    }
3323
3324    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3325        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3326            return None;
3327        }
3328
3329        Some(
3330            div()
3331                .occlude()
3332                .id("active-thread-scrollbar")
3333                .on_mouse_move(cx.listener(|_, _, _, cx| {
3334                    cx.notify();
3335                    cx.stop_propagation()
3336                }))
3337                .on_hover(|_, _, cx| {
3338                    cx.stop_propagation();
3339                })
3340                .on_any_mouse_down(|_, _, cx| {
3341                    cx.stop_propagation();
3342                })
3343                .on_mouse_up(
3344                    MouseButton::Left,
3345                    cx.listener(|_, _, _, cx| {
3346                        cx.stop_propagation();
3347                    }),
3348                )
3349                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3350                    cx.notify();
3351                }))
3352                .h_full()
3353                .absolute()
3354                .right_1()
3355                .top_1()
3356                .bottom_0()
3357                .w(px(12.))
3358                .cursor_default()
3359                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3360        )
3361    }
3362
3363    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3364        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3365        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3366            cx.background_executor()
3367                .timer(SCROLLBAR_SHOW_INTERVAL)
3368                .await;
3369            thread
3370                .update(cx, |thread, cx| {
3371                    if !thread.scrollbar_state.is_dragging() {
3372                        thread.show_scrollbar = false;
3373                        cx.notify();
3374                    }
3375                })
3376                .log_err();
3377        }))
3378    }
3379
3380    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3381        self.expanded_code_blocks
3382            .get(&(message_id, ix))
3383            .copied()
3384            .unwrap_or(false)
3385    }
3386
3387    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3388        let is_expanded = self
3389            .expanded_code_blocks
3390            .entry((message_id, ix))
3391            .or_insert(false);
3392        *is_expanded = !*is_expanded;
3393    }
3394}
3395
3396pub enum ActiveThreadEvent {
3397    EditingMessageTokenCountChanged,
3398}
3399
3400impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3401
3402impl Render for ActiveThread {
3403    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3404        v_flex()
3405            .size_full()
3406            .relative()
3407            .on_mouse_move(cx.listener(|this, _, _, cx| {
3408                this.show_scrollbar = true;
3409                this.hide_scrollbar_later(cx);
3410                cx.notify();
3411            }))
3412            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3413                this.show_scrollbar = true;
3414                this.hide_scrollbar_later(cx);
3415                cx.notify();
3416            }))
3417            .on_mouse_up(
3418                MouseButton::Left,
3419                cx.listener(|this, _, _, cx| {
3420                    this.hide_scrollbar_later(cx);
3421                }),
3422            )
3423            .child(list(self.list_state.clone()).flex_grow())
3424            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3425                this.child(scrollbar)
3426            })
3427    }
3428}
3429
3430pub(crate) fn open_active_thread_as_markdown(
3431    thread: Entity<Thread>,
3432    workspace: Entity<Workspace>,
3433    window: &mut Window,
3434    cx: &mut App,
3435) -> Task<anyhow::Result<()>> {
3436    let markdown_language_task = workspace
3437        .read(cx)
3438        .app_state()
3439        .languages
3440        .language_for_name("Markdown");
3441
3442    window.spawn(cx, async move |cx| {
3443        let markdown_language = markdown_language_task.await?;
3444
3445        workspace.update_in(cx, |workspace, window, cx| {
3446            let thread = thread.read(cx);
3447            let markdown = thread.to_markdown(cx)?;
3448            let thread_summary = thread.summary().or_default().to_string();
3449
3450            let project = workspace.project().clone();
3451
3452            if !project.read(cx).is_local() {
3453                anyhow::bail!("failed to open active thread as markdown in remote project");
3454            }
3455
3456            let buffer = project.update(cx, |project, cx| {
3457                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3458            });
3459            let buffer =
3460                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3461
3462            workspace.add_item_to_active_pane(
3463                Box::new(cx.new(|cx| {
3464                    let mut editor =
3465                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3466                    editor.set_breadcrumb_header(thread_summary);
3467                    editor
3468                })),
3469                None,
3470                true,
3471                window,
3472                cx,
3473            );
3474
3475            anyhow::Ok(())
3476        })??;
3477        anyhow::Ok(())
3478    })
3479}
3480
3481pub(crate) fn open_context(
3482    context: &AgentContextHandle,
3483    workspace: Entity<Workspace>,
3484    window: &mut Window,
3485    cx: &mut App,
3486) {
3487    match context {
3488        AgentContextHandle::File(file_context) => {
3489            if let Some(project_path) = file_context.project_path(cx) {
3490                workspace.update(cx, |workspace, cx| {
3491                    workspace
3492                        .open_path(project_path, None, true, window, cx)
3493                        .detach_and_log_err(cx);
3494                });
3495            }
3496        }
3497
3498        AgentContextHandle::Directory(directory_context) => {
3499            let entry_id = directory_context.entry_id;
3500            workspace.update(cx, |workspace, cx| {
3501                workspace.project().update(cx, |_project, cx| {
3502                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3503                })
3504            })
3505        }
3506
3507        AgentContextHandle::Symbol(symbol_context) => {
3508            let buffer = symbol_context.buffer.read(cx);
3509            if let Some(project_path) = buffer.project_path(cx) {
3510                let snapshot = buffer.snapshot();
3511                let target_position = symbol_context.range.start.to_point(&snapshot);
3512                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3513                    .detach();
3514            }
3515        }
3516
3517        AgentContextHandle::Selection(selection_context) => {
3518            let buffer = selection_context.buffer.read(cx);
3519            if let Some(project_path) = buffer.project_path(cx) {
3520                let snapshot = buffer.snapshot();
3521                let target_position = selection_context.range.start.to_point(&snapshot);
3522
3523                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3524                    .detach();
3525            }
3526        }
3527
3528        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3529            cx.open_url(&fetched_url_context.url);
3530        }
3531
3532        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3533            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3534                panel.update(cx, |panel, cx| {
3535                    panel.open_thread(thread_context.thread.clone(), window, cx);
3536                });
3537            }
3538        }),
3539
3540        AgentContextHandle::TextThread(text_thread_context) => {
3541            workspace.update(cx, |workspace, cx| {
3542                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3543                    panel.update(cx, |panel, cx| {
3544                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3545                    });
3546                }
3547            })
3548        }
3549
3550        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3551            Box::new(OpenRulesLibrary {
3552                prompt_to_select: Some(rules_context.prompt_id.0),
3553            }),
3554            cx,
3555        ),
3556
3557        AgentContextHandle::Image(_) => {}
3558    }
3559}
3560
3561fn open_editor_at_position(
3562    project_path: project::ProjectPath,
3563    target_position: Point,
3564    workspace: &Entity<Workspace>,
3565    window: &mut Window,
3566    cx: &mut App,
3567) -> Task<()> {
3568    let open_task = workspace.update(cx, |workspace, cx| {
3569        workspace.open_path(project_path, None, true, window, cx)
3570    });
3571    window.spawn(cx, async move |cx| {
3572        if let Some(active_editor) = open_task
3573            .await
3574            .log_err()
3575            .and_then(|item| item.downcast::<Editor>())
3576        {
3577            active_editor
3578                .downgrade()
3579                .update_in(cx, |editor, window, cx| {
3580                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3581                })
3582                .log_err();
3583        }
3584    })
3585}