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