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,
  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::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  37use project::{ProjectEntryId, ProjectItem as _};
  38use rope::Point;
  39use settings::{Settings as _, SettingsStore, update_settings_file};
  40use std::ffi::OsStr;
  41use std::path::Path;
  42use std::rc::Rc;
  43use std::sync::Arc;
  44use std::time::Duration;
  45use text::ToPoint;
  46use theme::ThemeSettings;
  47use ui::{
  48    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  49    Tooltip, prelude::*,
  50};
  51use util::ResultExt as _;
  52use util::markdown::MarkdownCodeBlock;
  53use workspace::Workspace;
  54use zed_actions::assistant::OpenRulesLibrary;
  55
  56pub struct ActiveThread {
  57    context_store: Entity<ContextStore>,
  58    language_registry: Arc<LanguageRegistry>,
  59    thread_store: Entity<ThreadStore>,
  60    text_thread_store: Entity<TextThreadStore>,
  61    thread: Entity<Thread>,
  62    workspace: WeakEntity<Workspace>,
  63    save_thread_task: Option<Task<()>>,
  64    messages: Vec<MessageId>,
  65    list_state: ListState,
  66    scrollbar_state: ScrollbarState,
  67    show_scrollbar: bool,
  68    hide_scrollbar_task: Option<Task<()>>,
  69    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  70    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  71    editing_message: Option<(MessageId, EditingMessageState)>,
  72    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  73    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  74    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  75    last_error: Option<ThreadError>,
  76    notifications: Vec<WindowHandle<AgentNotification>>,
  77    copied_code_block_ids: HashSet<(MessageId, usize)>,
  78    _subscriptions: Vec<Subscription>,
  79    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  80    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  81    _load_edited_message_context_task: Option<Task<()>>,
  82}
  83
  84struct RenderedMessage {
  85    language_registry: Arc<LanguageRegistry>,
  86    segments: Vec<RenderedMessageSegment>,
  87}
  88
  89#[derive(Clone)]
  90struct RenderedToolUse {
  91    label: Entity<Markdown>,
  92    input: Entity<Markdown>,
  93    output: Entity<Markdown>,
  94}
  95
  96impl RenderedMessage {
  97    fn from_segments(
  98        segments: &[MessageSegment],
  99        language_registry: Arc<LanguageRegistry>,
 100        cx: &mut App,
 101    ) -> Self {
 102        let mut this = Self {
 103            language_registry,
 104            segments: Vec::with_capacity(segments.len()),
 105        };
 106        for segment in segments {
 107            this.push_segment(segment, cx);
 108        }
 109        this
 110    }
 111
 112    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 113        if let Some(RenderedMessageSegment::Thinking {
 114            content,
 115            scroll_handle,
 116        }) = self.segments.last_mut()
 117        {
 118            content.update(cx, |markdown, cx| {
 119                markdown.append(text, cx);
 120            });
 121            scroll_handle.scroll_to_bottom();
 122        } else {
 123            self.segments.push(RenderedMessageSegment::Thinking {
 124                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 125                scroll_handle: ScrollHandle::default(),
 126            });
 127        }
 128    }
 129
 130    fn append_text(&mut self, text: &String, cx: &mut App) {
 131        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 132            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 133        } else {
 134            self.segments
 135                .push(RenderedMessageSegment::Text(parse_markdown(
 136                    SharedString::from(text),
 137                    self.language_registry.clone(),
 138                    cx,
 139                )));
 140        }
 141    }
 142
 143    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 144        match segment {
 145            MessageSegment::Thinking { text, .. } => {
 146                self.segments.push(RenderedMessageSegment::Thinking {
 147                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 148                    scroll_handle: ScrollHandle::default(),
 149                })
 150            }
 151            MessageSegment::Text(text) => {
 152                self.segments
 153                    .push(RenderedMessageSegment::Text(parse_markdown(
 154                        text.into(),
 155                        self.language_registry.clone(),
 156                        cx,
 157                    )))
 158            }
 159            MessageSegment::RedactedThinking(_) => {}
 160        };
 161    }
 162}
 163
 164enum RenderedMessageSegment {
 165    Thinking {
 166        content: Entity<Markdown>,
 167        scroll_handle: ScrollHandle,
 168    },
 169    Text(Entity<Markdown>),
 170}
 171
 172fn parse_markdown(
 173    text: SharedString,
 174    language_registry: Arc<LanguageRegistry>,
 175    cx: &mut App,
 176) -> Entity<Markdown> {
 177    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 178}
 179
 180pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 181    let theme_settings = ThemeSettings::get_global(cx);
 182    let colors = cx.theme().colors();
 183    let ui_font_size = TextSize::Default.rems(cx);
 184    let buffer_font_size = TextSize::Small.rems(cx);
 185    let mut text_style = window.text_style();
 186
 187    text_style.refine(&TextStyleRefinement {
 188        font_family: Some(theme_settings.ui_font.family.clone()),
 189        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 190        font_features: Some(theme_settings.ui_font.features.clone()),
 191        font_size: Some(ui_font_size.into()),
 192        color: Some(cx.theme().colors().text),
 193        ..Default::default()
 194    });
 195
 196    MarkdownStyle {
 197        base_text_style: text_style.clone(),
 198        syntax: cx.theme().syntax().clone(),
 199        selection_background_color: cx.theme().players().local().selection,
 200        code_block_overflow_x_scroll: true,
 201        table_overflow_x_scroll: true,
 202        heading_level_styles: Some(HeadingLevelStyles {
 203            h1: Some(TextStyleRefinement {
 204                font_size: Some(rems(1.15).into()),
 205                ..Default::default()
 206            }),
 207            h2: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.1).into()),
 209                ..Default::default()
 210            }),
 211            h3: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.05).into()),
 213                ..Default::default()
 214            }),
 215            h4: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.).into()),
 217                ..Default::default()
 218            }),
 219            h5: Some(TextStyleRefinement {
 220                font_size: Some(rems(0.95).into()),
 221                ..Default::default()
 222            }),
 223            h6: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.875).into()),
 225                ..Default::default()
 226            }),
 227        }),
 228        code_block: StyleRefinement {
 229            padding: EdgesRefinement {
 230                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 231                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 232                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 233                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 234            },
 235            background: Some(colors.editor_background.into()),
 236            text: Some(TextStyleRefinement {
 237                font_family: Some(theme_settings.buffer_font.family.clone()),
 238                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 239                font_features: Some(theme_settings.buffer_font.features.clone()),
 240                font_size: Some(buffer_font_size.into()),
 241                ..Default::default()
 242            }),
 243            ..Default::default()
 244        },
 245        inline_code: TextStyleRefinement {
 246            font_family: Some(theme_settings.buffer_font.family.clone()),
 247            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 248            font_features: Some(theme_settings.buffer_font.features.clone()),
 249            font_size: Some(buffer_font_size.into()),
 250            background_color: Some(colors.editor_foreground.opacity(0.08)),
 251            ..Default::default()
 252        },
 253        link: TextStyleRefinement {
 254            background_color: Some(colors.editor_foreground.opacity(0.025)),
 255            underline: Some(UnderlineStyle {
 256                color: Some(colors.text_accent.opacity(0.5)),
 257                thickness: px(1.),
 258                ..Default::default()
 259            }),
 260            ..Default::default()
 261        },
 262        link_callback: Some(Rc::new(move |url, cx| {
 263            if MentionLink::is_valid(url) {
 264                let colors = cx.theme().colors();
 265                Some(TextStyleRefinement {
 266                    background_color: Some(colors.element_background),
 267                    ..Default::default()
 268                })
 269            } else {
 270                None
 271            }
 272        })),
 273        ..Default::default()
 274    }
 275}
 276
 277fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 278    let theme_settings = ThemeSettings::get_global(cx);
 279    let colors = cx.theme().colors();
 280    let ui_font_size = TextSize::Default.rems(cx);
 281    let buffer_font_size = TextSize::Small.rems(cx);
 282    let mut text_style = window.text_style();
 283
 284    text_style.refine(&TextStyleRefinement {
 285        font_family: Some(theme_settings.ui_font.family.clone()),
 286        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 287        font_features: Some(theme_settings.ui_font.features.clone()),
 288        font_size: Some(ui_font_size.into()),
 289        color: Some(cx.theme().colors().text),
 290        ..Default::default()
 291    });
 292
 293    MarkdownStyle {
 294        base_text_style: text_style,
 295        syntax: cx.theme().syntax().clone(),
 296        selection_background_color: cx.theme().players().local().selection,
 297        code_block_overflow_x_scroll: true,
 298        code_block: StyleRefinement {
 299            margin: EdgesRefinement::default(),
 300            padding: EdgesRefinement::default(),
 301            background: Some(colors.editor_background.into()),
 302            border_color: None,
 303            border_widths: EdgesRefinement::default(),
 304            text: Some(TextStyleRefinement {
 305                font_family: Some(theme_settings.buffer_font.family.clone()),
 306                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 307                font_features: Some(theme_settings.buffer_font.features.clone()),
 308                font_size: Some(buffer_font_size.into()),
 309                ..Default::default()
 310            }),
 311            ..Default::default()
 312        },
 313        inline_code: TextStyleRefinement {
 314            font_family: Some(theme_settings.buffer_font.family.clone()),
 315            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 316            font_features: Some(theme_settings.buffer_font.features.clone()),
 317            font_size: Some(TextSize::XSmall.rems(cx).into()),
 318            ..Default::default()
 319        },
 320        heading: StyleRefinement {
 321            text: Some(TextStyleRefinement {
 322                font_size: Some(ui_font_size.into()),
 323                ..Default::default()
 324            }),
 325            ..Default::default()
 326        },
 327        ..Default::default()
 328    }
 329}
 330
 331const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 332const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 333
 334fn render_markdown_code_block(
 335    message_id: MessageId,
 336    ix: usize,
 337    kind: &CodeBlockKind,
 338    parsed_markdown: &ParsedMarkdown,
 339    metadata: CodeBlockMetadata,
 340    active_thread: Entity<ActiveThread>,
 341    workspace: WeakEntity<Workspace>,
 342    _window: &Window,
 343    cx: &App,
 344) -> Div {
 345    let label = match kind {
 346        CodeBlockKind::Indented => None,
 347        CodeBlockKind::Fenced => Some(
 348            h_flex()
 349                .gap_1()
 350                .child(
 351                    Icon::new(IconName::Code)
 352                        .color(Color::Muted)
 353                        .size(IconSize::XSmall),
 354                )
 355                .child(Label::new("untitled").size(LabelSize::Small))
 356                .into_any_element(),
 357        ),
 358        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 359            parsed_markdown.languages_by_name.get(raw_language_name),
 360            raw_language_name.clone(),
 361            cx,
 362        )),
 363        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 364            // We tell the model to use /dev/null for the path instead of using ```language
 365            // because otherwise it consistently fails to use code citations.
 366            if path_range.path.starts_with("/dev/null") {
 367                let ext = path_range
 368                    .path
 369                    .extension()
 370                    .and_then(OsStr::to_str)
 371                    .map(|str| SharedString::new(str.to_string()))
 372                    .unwrap_or_default();
 373
 374                render_code_language(
 375                    parsed_markdown
 376                        .languages_by_path
 377                        .get(&path_range.path)
 378                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 379                    ext,
 380                    cx,
 381                )
 382            } else {
 383                let content = if let Some(parent) = path_range.path.parent() {
 384                    h_flex()
 385                        .ml_1()
 386                        .gap_1()
 387                        .child(
 388                            Label::new(file_name.to_string_lossy().to_string())
 389                                .size(LabelSize::Small),
 390                        )
 391                        .child(
 392                            Label::new(parent.to_string_lossy().to_string())
 393                                .color(Color::Muted)
 394                                .size(LabelSize::Small),
 395                        )
 396                        .into_any_element()
 397                } else {
 398                    Label::new(path_range.path.to_string_lossy().to_string())
 399                        .size(LabelSize::Small)
 400                        .ml_1()
 401                        .into_any_element()
 402                };
 403
 404                h_flex()
 405                    .id(("code-block-header-label", ix))
 406                    .w_full()
 407                    .max_w_full()
 408                    .px_1()
 409                    .gap_0p5()
 410                    .cursor_pointer()
 411                    .rounded_sm()
 412                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 413                    .tooltip(Tooltip::text("Jump to File"))
 414                    .child(
 415                        h_flex()
 416                            .gap_0p5()
 417                            .children(
 418                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 419                                    .map(Icon::from_path)
 420                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 421                            )
 422                            .child(content)
 423                            .child(
 424                                Icon::new(IconName::ArrowUpRight)
 425                                    .size(IconSize::XSmall)
 426                                    .color(Color::Ignored),
 427                            ),
 428                    )
 429                    .on_click({
 430                        let path_range = path_range.clone();
 431                        move |_, window, cx| {
 432                            workspace
 433                                .update(cx, {
 434                                    |workspace, cx| {
 435                                        let Some(project_path) = workspace
 436                                            .project()
 437                                            .read(cx)
 438                                            .find_project_path(&path_range.path, cx)
 439                                        else {
 440                                            return;
 441                                        };
 442                                        let Some(target) = path_range.range.as_ref().map(|range| {
 443                                            Point::new(
 444                                                // Line number is 1-based
 445                                                range.start.line.saturating_sub(1),
 446                                                range.start.col.unwrap_or(0),
 447                                            )
 448                                        }) else {
 449                                            return;
 450                                        };
 451                                        let open_task = workspace.open_path(
 452                                            project_path,
 453                                            None,
 454                                            true,
 455                                            window,
 456                                            cx,
 457                                        );
 458                                        window
 459                                            .spawn(cx, async move |cx| {
 460                                                let item = open_task.await?;
 461                                                if let Some(active_editor) =
 462                                                    item.downcast::<Editor>()
 463                                                {
 464                                                    active_editor
 465                                                        .update_in(cx, |editor, window, cx| {
 466                                                            editor.go_to_singleton_buffer_point(
 467                                                                target, window, cx,
 468                                                            );
 469                                                        })
 470                                                        .ok();
 471                                                }
 472                                                anyhow::Ok(())
 473                                            })
 474                                            .detach_and_log_err(cx);
 475                                    }
 476                                })
 477                                .ok();
 478                        }
 479                    })
 480                    .into_any_element()
 481            }
 482        }),
 483    };
 484
 485    let codeblock_was_copied = active_thread
 486        .read(cx)
 487        .copied_code_block_ids
 488        .contains(&(message_id, ix));
 489
 490    let can_expand = metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
 491
 492    let is_expanded = if can_expand {
 493        active_thread
 494            .read(cx)
 495            .expanded_code_blocks
 496            .get(&(message_id, ix))
 497            .copied()
 498            .unwrap_or(false)
 499    } else {
 500        false
 501    };
 502
 503    let codeblock_header_bg = cx
 504        .theme()
 505        .colors()
 506        .element_background
 507        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 508
 509    let codeblock_header = h_flex()
 510        .py_1()
 511        .pl_1p5()
 512        .pr_1()
 513        .gap_1()
 514        .justify_between()
 515        .border_b_1()
 516        .border_color(cx.theme().colors().border.opacity(0.6))
 517        .bg(codeblock_header_bg)
 518        .rounded_t_md()
 519        .children(label)
 520        .child(
 521            h_flex()
 522                .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 523                .gap_1()
 524                .child(
 525                    IconButton::new(
 526                        ("copy-markdown-code", ix),
 527                        if codeblock_was_copied {
 528                            IconName::Check
 529                        } else {
 530                            IconName::Copy
 531                        },
 532                    )
 533                    .icon_color(Color::Muted)
 534                    .shape(ui::IconButtonShape::Square)
 535                    .tooltip(Tooltip::text("Copy Code"))
 536                    .on_click({
 537                        let active_thread = active_thread.clone();
 538                        let parsed_markdown = parsed_markdown.clone();
 539                        let code_block_range = metadata.content_range.clone();
 540                        move |_event, _window, cx| {
 541                            active_thread.update(cx, |this, cx| {
 542                                this.copied_code_block_ids.insert((message_id, ix));
 543
 544                                let code =
 545                                    parsed_markdown.source()[code_block_range.clone()].to_string();
 546                                cx.write_to_clipboard(ClipboardItem::new_string(code));
 547
 548                                cx.spawn(async move |this, cx| {
 549                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 550
 551                                    cx.update(|cx| {
 552                                        this.update(cx, |this, cx| {
 553                                            this.copied_code_block_ids.remove(&(message_id, ix));
 554                                            cx.notify();
 555                                        })
 556                                    })
 557                                    .ok();
 558                                })
 559                                .detach();
 560                            });
 561                        }
 562                    }),
 563                )
 564                .when(can_expand, |header| {
 565                    header.child(
 566                        IconButton::new(
 567                            ("expand-collapse-code", ix),
 568                            if is_expanded {
 569                                IconName::ChevronUp
 570                            } else {
 571                                IconName::ChevronDown
 572                            },
 573                        )
 574                        .icon_color(Color::Muted)
 575                        .shape(ui::IconButtonShape::Square)
 576                        .tooltip(Tooltip::text(if is_expanded {
 577                            "Collapse Code"
 578                        } else {
 579                            "Expand Code"
 580                        }))
 581                        .on_click({
 582                            let active_thread = active_thread.clone();
 583                            move |_event, _window, cx| {
 584                                active_thread.update(cx, |this, cx| {
 585                                    let is_expanded = this
 586                                        .expanded_code_blocks
 587                                        .entry((message_id, ix))
 588                                        .or_insert(true);
 589                                    *is_expanded = !*is_expanded;
 590                                    cx.notify();
 591                                });
 592                            }
 593                        }),
 594                    )
 595                }),
 596        );
 597
 598    v_flex()
 599        .group(CODEBLOCK_CONTAINER_GROUP)
 600        .my_2()
 601        .overflow_hidden()
 602        .rounded_lg()
 603        .border_1()
 604        .border_color(cx.theme().colors().border.opacity(0.6))
 605        .bg(cx.theme().colors().editor_background)
 606        .child(codeblock_header)
 607        .when(can_expand && !is_expanded, |this| this.max_h_80())
 608}
 609
 610fn render_code_language(
 611    language: Option<&Arc<Language>>,
 612    name_fallback: SharedString,
 613    cx: &App,
 614) -> AnyElement {
 615    let icon_path = language.and_then(|language| {
 616        language
 617            .config()
 618            .matcher
 619            .path_suffixes
 620            .iter()
 621            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 622            .map(Icon::from_path)
 623    });
 624
 625    let language_label = language
 626        .map(|language| language.name().into())
 627        .unwrap_or(name_fallback);
 628
 629    h_flex()
 630        .gap_1()
 631        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 632        .child(Label::new(language_label).size(LabelSize::Small))
 633        .into_any_element()
 634}
 635
 636fn open_markdown_link(
 637    text: SharedString,
 638    workspace: WeakEntity<Workspace>,
 639    window: &mut Window,
 640    cx: &mut App,
 641) {
 642    let Some(workspace) = workspace.upgrade() else {
 643        cx.open_url(&text);
 644        return;
 645    };
 646
 647    match MentionLink::try_parse(&text, &workspace, cx) {
 648        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 649            if entry.is_dir() {
 650                workspace.project().update(cx, |_, cx| {
 651                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 652                })
 653            } else {
 654                workspace
 655                    .open_path(path, None, true, window, cx)
 656                    .detach_and_log_err(cx);
 657            }
 658        }),
 659        Some(MentionLink::Symbol(path, symbol_name)) => {
 660            let open_task = workspace.update(cx, |workspace, cx| {
 661                workspace.open_path(path, None, true, window, cx)
 662            });
 663            window
 664                .spawn(cx, async move |cx| {
 665                    let active_editor = open_task
 666                        .await?
 667                        .downcast::<Editor>()
 668                        .context("Item is not an editor")?;
 669                    active_editor.update_in(cx, |editor, window, cx| {
 670                        let symbol_range = editor
 671                            .buffer()
 672                            .read(cx)
 673                            .snapshot(cx)
 674                            .outline(None)
 675                            .and_then(|outline| {
 676                                outline
 677                                    .find_most_similar(&symbol_name)
 678                                    .map(|(_, item)| item.range.clone())
 679                            })
 680                            .context("Could not find matching symbol")?;
 681
 682                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 683                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 684                        });
 685                        anyhow::Ok(())
 686                    })
 687                })
 688                .detach_and_log_err(cx);
 689        }
 690        Some(MentionLink::Selection(path, line_range)) => {
 691            let open_task = workspace.update(cx, |workspace, cx| {
 692                workspace.open_path(path, None, true, window, cx)
 693            });
 694            window
 695                .spawn(cx, async move |cx| {
 696                    let active_editor = open_task
 697                        .await?
 698                        .downcast::<Editor>()
 699                        .context("Item is not an editor")?;
 700                    active_editor.update_in(cx, |editor, window, cx| {
 701                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 702                            s.select_ranges([Point::new(line_range.start as u32, 0)
 703                                ..Point::new(line_range.start as u32, 0)])
 704                        });
 705                        anyhow::Ok(())
 706                    })
 707                })
 708                .detach_and_log_err(cx);
 709        }
 710        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 711            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 712                panel.update(cx, |panel, cx| {
 713                    panel
 714                        .open_thread_by_id(&thread_id, window, cx)
 715                        .detach_and_log_err(cx)
 716                });
 717            }
 718        }),
 719        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 720            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 721                panel.update(cx, |panel, cx| {
 722                    panel
 723                        .open_saved_prompt_editor(path, window, cx)
 724                        .detach_and_log_err(cx);
 725                });
 726            }
 727        }),
 728        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 729        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 730            Box::new(OpenRulesLibrary {
 731                prompt_to_select: Some(prompt_id.0),
 732            }),
 733            cx,
 734        ),
 735        None => cx.open_url(&text),
 736    }
 737}
 738
 739struct EditingMessageState {
 740    editor: Entity<Editor>,
 741    context_strip: Entity<ContextStrip>,
 742    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 743    last_estimated_token_count: Option<usize>,
 744    _subscriptions: [Subscription; 2],
 745    _update_token_count_task: Option<Task<()>>,
 746}
 747
 748impl ActiveThread {
 749    pub fn new(
 750        thread: Entity<Thread>,
 751        thread_store: Entity<ThreadStore>,
 752        text_thread_store: Entity<TextThreadStore>,
 753        context_store: Entity<ContextStore>,
 754        language_registry: Arc<LanguageRegistry>,
 755        workspace: WeakEntity<Workspace>,
 756        window: &mut Window,
 757        cx: &mut Context<Self>,
 758    ) -> Self {
 759        let subscriptions = vec![
 760            cx.observe(&thread, |_, _, cx| cx.notify()),
 761            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 762            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 763            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 764        ];
 765
 766        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 767            let this = cx.entity().downgrade();
 768            move |ix, window: &mut Window, cx: &mut App| {
 769                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 770                    .unwrap()
 771            }
 772        });
 773        let mut this = Self {
 774            language_registry,
 775            thread_store,
 776            text_thread_store,
 777            context_store,
 778            thread: thread.clone(),
 779            workspace,
 780            save_thread_task: None,
 781            messages: Vec::new(),
 782            rendered_messages_by_id: HashMap::default(),
 783            rendered_tool_uses: HashMap::default(),
 784            expanded_tool_uses: HashMap::default(),
 785            expanded_thinking_segments: HashMap::default(),
 786            expanded_code_blocks: HashMap::default(),
 787            list_state: list_state.clone(),
 788            scrollbar_state: ScrollbarState::new(list_state),
 789            show_scrollbar: false,
 790            hide_scrollbar_task: None,
 791            editing_message: None,
 792            last_error: None,
 793            copied_code_block_ids: HashSet::default(),
 794            notifications: Vec::new(),
 795            _subscriptions: subscriptions,
 796            notification_subscriptions: HashMap::default(),
 797            open_feedback_editors: HashMap::default(),
 798            _load_edited_message_context_task: None,
 799        };
 800
 801        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 802            this.push_message(&message.id, &message.segments, window, cx);
 803
 804            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 805                this.render_tool_use_markdown(
 806                    tool_use.id.clone(),
 807                    tool_use.ui_text.clone(),
 808                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 809                    tool_use.status.text(),
 810                    cx,
 811                );
 812            }
 813        }
 814
 815        this
 816    }
 817
 818    pub fn thread(&self) -> &Entity<Thread> {
 819        &self.thread
 820    }
 821
 822    pub fn is_empty(&self) -> bool {
 823        self.messages.is_empty()
 824    }
 825
 826    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 827        self.thread.read(cx).summary()
 828    }
 829
 830    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 831        self.thread.read(cx).summary_or_default()
 832    }
 833
 834    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 835        self.last_error.take();
 836        self.thread.update(cx, |thread, cx| {
 837            thread.cancel_last_completion(Some(window.window_handle()), cx)
 838        })
 839    }
 840
 841    pub fn last_error(&self) -> Option<ThreadError> {
 842        self.last_error.clone()
 843    }
 844
 845    pub fn clear_last_error(&mut self) {
 846        self.last_error.take();
 847    }
 848
 849    /// Returns the editing message id and the estimated token count in the content
 850    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 851        self.editing_message
 852            .as_ref()
 853            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 854    }
 855
 856    pub fn context_store(&self) -> &Entity<ContextStore> {
 857        &self.context_store
 858    }
 859
 860    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 861        &self.thread_store
 862    }
 863
 864    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 865        &self.text_thread_store
 866    }
 867
 868    fn push_message(
 869        &mut self,
 870        id: &MessageId,
 871        segments: &[MessageSegment],
 872        _window: &mut Window,
 873        cx: &mut Context<Self>,
 874    ) {
 875        let old_len = self.messages.len();
 876        self.messages.push(*id);
 877        self.list_state.splice(old_len..old_len, 1);
 878
 879        let rendered_message =
 880            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 881        self.rendered_messages_by_id.insert(*id, rendered_message);
 882    }
 883
 884    fn edited_message(
 885        &mut self,
 886        id: &MessageId,
 887        segments: &[MessageSegment],
 888        _window: &mut Window,
 889        cx: &mut Context<Self>,
 890    ) {
 891        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 892            return;
 893        };
 894        self.list_state.splice(index..index + 1, 1);
 895        let rendered_message =
 896            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 897        self.rendered_messages_by_id.insert(*id, rendered_message);
 898    }
 899
 900    fn deleted_message(&mut self, id: &MessageId) {
 901        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 902            return;
 903        };
 904        self.messages.remove(index);
 905        self.list_state.splice(index..index + 1, 0);
 906        self.rendered_messages_by_id.remove(id);
 907    }
 908
 909    fn render_tool_use_markdown(
 910        &mut self,
 911        tool_use_id: LanguageModelToolUseId,
 912        tool_label: impl Into<SharedString>,
 913        tool_input: &str,
 914        tool_output: SharedString,
 915        cx: &mut Context<Self>,
 916    ) {
 917        let rendered = self
 918            .rendered_tool_uses
 919            .entry(tool_use_id.clone())
 920            .or_insert_with(|| RenderedToolUse {
 921                label: cx.new(|cx| {
 922                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 923                }),
 924                input: cx.new(|cx| {
 925                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 926                }),
 927                output: cx.new(|cx| {
 928                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 929                }),
 930            });
 931
 932        rendered.label.update(cx, |this, cx| {
 933            this.replace(tool_label, cx);
 934        });
 935        rendered.input.update(cx, |this, cx| {
 936            this.replace(
 937                MarkdownCodeBlock {
 938                    tag: "json",
 939                    text: tool_input,
 940                }
 941                .to_string(),
 942                cx,
 943            );
 944        });
 945        rendered.output.update(cx, |this, cx| {
 946            this.replace(tool_output, cx);
 947        });
 948    }
 949
 950    fn handle_thread_event(
 951        &mut self,
 952        _thread: &Entity<Thread>,
 953        event: &ThreadEvent,
 954        window: &mut Window,
 955        cx: &mut Context<Self>,
 956    ) {
 957        match event {
 958            ThreadEvent::CancelEditing => {
 959                if self.editing_message.is_some() {
 960                    self.cancel_editing_message(&menu::Cancel, window, cx);
 961                }
 962            }
 963            ThreadEvent::ShowError(error) => {
 964                self.last_error = Some(error.clone());
 965            }
 966            ThreadEvent::NewRequest | ThreadEvent::CompletionCanceled => {
 967                cx.notify();
 968            }
 969            ThreadEvent::StreamedCompletion
 970            | ThreadEvent::SummaryGenerated
 971            | ThreadEvent::SummaryChanged => {
 972                self.save_thread(cx);
 973            }
 974            ThreadEvent::Stopped(reason) => match reason {
 975                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 976                    let thread = self.thread.read(cx);
 977                    self.show_notification(
 978                        if thread.used_tools_since_last_user_message() {
 979                            "Finished running tools"
 980                        } else {
 981                            "New message"
 982                        },
 983                        IconName::ZedAssistant,
 984                        window,
 985                        cx,
 986                    );
 987                }
 988                _ => {}
 989            },
 990            ThreadEvent::ToolConfirmationNeeded => {
 991                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 992            }
 993            ThreadEvent::StreamedAssistantText(message_id, text) => {
 994                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 995                    rendered_message.append_text(text, cx);
 996                }
 997            }
 998            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 999                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1000                    rendered_message.append_thinking(text, cx);
1001                }
1002            }
1003            ThreadEvent::MessageAdded(message_id) => {
1004                if let Some(message_segments) = self
1005                    .thread
1006                    .read(cx)
1007                    .message(*message_id)
1008                    .map(|message| message.segments.clone())
1009                {
1010                    self.push_message(message_id, &message_segments, window, cx);
1011                }
1012
1013                self.save_thread(cx);
1014                cx.notify();
1015            }
1016            ThreadEvent::MessageEdited(message_id) => {
1017                if let Some(message_segments) = self
1018                    .thread
1019                    .read(cx)
1020                    .message(*message_id)
1021                    .map(|message| message.segments.clone())
1022                {
1023                    self.edited_message(message_id, &message_segments, window, cx);
1024                }
1025
1026                self.save_thread(cx);
1027                cx.notify();
1028            }
1029            ThreadEvent::MessageDeleted(message_id) => {
1030                self.deleted_message(message_id);
1031                self.save_thread(cx);
1032                cx.notify();
1033            }
1034            ThreadEvent::UsePendingTools { tool_uses } => {
1035                for tool_use in tool_uses {
1036                    self.render_tool_use_markdown(
1037                        tool_use.id.clone(),
1038                        tool_use.ui_text.clone(),
1039                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1040                        "".into(),
1041                        cx,
1042                    );
1043                }
1044            }
1045            ThreadEvent::StreamedToolUse {
1046                tool_use_id,
1047                ui_text,
1048                input,
1049            } => {
1050                self.render_tool_use_markdown(
1051                    tool_use_id.clone(),
1052                    ui_text.clone(),
1053                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1054                    "".into(),
1055                    cx,
1056                );
1057            }
1058            ThreadEvent::ToolFinished {
1059                pending_tool_use, ..
1060            } => {
1061                if let Some(tool_use) = pending_tool_use {
1062                    self.render_tool_use_markdown(
1063                        tool_use.id.clone(),
1064                        tool_use.ui_text.clone(),
1065                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1066                        self.thread
1067                            .read(cx)
1068                            .output_for_tool(&tool_use.id)
1069                            .map(|output| output.clone().into())
1070                            .unwrap_or("".into()),
1071                        cx,
1072                    );
1073                }
1074            }
1075            ThreadEvent::CheckpointChanged => cx.notify(),
1076            ThreadEvent::ReceivedTextChunk => {}
1077            ThreadEvent::InvalidToolInput {
1078                tool_use_id,
1079                ui_text,
1080                invalid_input_json,
1081            } => {
1082                self.render_tool_use_markdown(
1083                    tool_use_id.clone(),
1084                    ui_text,
1085                    invalid_input_json,
1086                    self.thread
1087                        .read(cx)
1088                        .output_for_tool(tool_use_id)
1089                        .map(|output| output.clone().into())
1090                        .unwrap_or("".into()),
1091                    cx,
1092                );
1093            }
1094            ThreadEvent::MissingToolUse {
1095                tool_use_id,
1096                ui_text,
1097            } => {
1098                self.render_tool_use_markdown(
1099                    tool_use_id.clone(),
1100                    ui_text,
1101                    "",
1102                    self.thread
1103                        .read(cx)
1104                        .output_for_tool(tool_use_id)
1105                        .map(|output| output.clone().into())
1106                        .unwrap_or("".into()),
1107                    cx,
1108                );
1109            }
1110        }
1111    }
1112
1113    fn handle_rules_loading_error(
1114        &mut self,
1115        _thread_store: Entity<ThreadStore>,
1116        error: &RulesLoadingError,
1117        cx: &mut Context<Self>,
1118    ) {
1119        self.last_error = Some(ThreadError::Message {
1120            header: "Error loading rules file".into(),
1121            message: error.message.clone(),
1122        });
1123        cx.notify();
1124    }
1125
1126    fn show_notification(
1127        &mut self,
1128        caption: impl Into<SharedString>,
1129        icon: IconName,
1130        window: &mut Window,
1131        cx: &mut Context<ActiveThread>,
1132    ) {
1133        if window.is_window_active() || !self.notifications.is_empty() {
1134            return;
1135        }
1136
1137        let title = self
1138            .thread
1139            .read(cx)
1140            .summary()
1141            .unwrap_or("Agent Panel".into());
1142
1143        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1144            NotifyWhenAgentWaiting::PrimaryScreen => {
1145                if let Some(primary) = cx.primary_display() {
1146                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1147                }
1148            }
1149            NotifyWhenAgentWaiting::AllScreens => {
1150                let caption = caption.into();
1151                for screen in cx.displays() {
1152                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1153                }
1154            }
1155            NotifyWhenAgentWaiting::Never => {
1156                // Don't show anything
1157            }
1158        }
1159    }
1160
1161    fn pop_up(
1162        &mut self,
1163        icon: IconName,
1164        caption: SharedString,
1165        title: SharedString,
1166        window: &mut Window,
1167        screen: Rc<dyn PlatformDisplay>,
1168        cx: &mut Context<'_, ActiveThread>,
1169    ) {
1170        let options = AgentNotification::window_options(screen, cx);
1171
1172        let project_name = self.workspace.upgrade().and_then(|workspace| {
1173            workspace
1174                .read(cx)
1175                .project()
1176                .read(cx)
1177                .visible_worktrees(cx)
1178                .next()
1179                .map(|worktree| worktree.read(cx).root_name().to_string())
1180        });
1181
1182        if let Some(screen_window) = cx
1183            .open_window(options, |_, cx| {
1184                cx.new(|_| {
1185                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1186                })
1187            })
1188            .log_err()
1189        {
1190            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1191                self.notification_subscriptions
1192                    .entry(screen_window)
1193                    .or_insert_with(Vec::new)
1194                    .push(cx.subscribe_in(&pop_up, window, {
1195                        |this, _, event, window, cx| match event {
1196                            AgentNotificationEvent::Accepted => {
1197                                let handle = window.window_handle();
1198                                cx.activate(true);
1199
1200                                let workspace_handle = this.workspace.clone();
1201
1202                                // If there are multiple Zed windows, activate the correct one.
1203                                cx.defer(move |cx| {
1204                                    handle
1205                                        .update(cx, |_view, window, _cx| {
1206                                            window.activate_window();
1207
1208                                            if let Some(workspace) = workspace_handle.upgrade() {
1209                                                workspace.update(_cx, |workspace, cx| {
1210                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1211                                                });
1212                                            }
1213                                        })
1214                                        .log_err();
1215                                });
1216
1217                                this.dismiss_notifications(cx);
1218                            }
1219                            AgentNotificationEvent::Dismissed => {
1220                                this.dismiss_notifications(cx);
1221                            }
1222                        }
1223                    }));
1224
1225                self.notifications.push(screen_window);
1226
1227                // If the user manually refocuses the original window, dismiss the popup.
1228                self.notification_subscriptions
1229                    .entry(screen_window)
1230                    .or_insert_with(Vec::new)
1231                    .push({
1232                        let pop_up_weak = pop_up.downgrade();
1233
1234                        cx.observe_window_activation(window, move |_, window, cx| {
1235                            if window.is_window_active() {
1236                                if let Some(pop_up) = pop_up_weak.upgrade() {
1237                                    pop_up.update(cx, |_, cx| {
1238                                        cx.emit(AgentNotificationEvent::Dismissed);
1239                                    });
1240                                }
1241                            }
1242                        })
1243                    });
1244            }
1245        }
1246    }
1247
1248    /// Spawns a task to save the active thread.
1249    ///
1250    /// Only one task to save the thread will be in flight at a time.
1251    fn save_thread(&mut self, cx: &mut Context<Self>) {
1252        let thread = self.thread.clone();
1253        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1254            let task = this
1255                .update(cx, |this, cx| {
1256                    this.thread_store
1257                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1258                })
1259                .ok();
1260
1261            if let Some(task) = task {
1262                task.await.log_err();
1263            }
1264        }));
1265    }
1266
1267    fn start_editing_message(
1268        &mut self,
1269        message_id: MessageId,
1270        message_segments: &[MessageSegment],
1271        message_creases: &[MessageCrease],
1272        window: &mut Window,
1273        cx: &mut Context<Self>,
1274    ) {
1275        // User message should always consist of a single text segment,
1276        // therefore we can skip returning early if it's not a text segment.
1277        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1278            return;
1279        };
1280
1281        let editor = crate::message_editor::create_editor(
1282            self.workspace.clone(),
1283            self.context_store.downgrade(),
1284            self.thread_store.downgrade(),
1285            self.text_thread_store.downgrade(),
1286            window,
1287            cx,
1288        );
1289        editor.update(cx, |editor, cx| {
1290            editor.set_text(message_text.clone(), window, cx);
1291            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1292            editor.focus_handle(cx).focus(window);
1293            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1294        });
1295        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1296            EditorEvent::BufferEdited => {
1297                this.update_editing_message_token_count(true, cx);
1298            }
1299            _ => {}
1300        });
1301
1302        let context_picker_menu_handle = PopoverMenuHandle::default();
1303        let context_strip = cx.new(|cx| {
1304            ContextStrip::new(
1305                self.context_store.clone(),
1306                self.workspace.clone(),
1307                Some(self.thread_store.downgrade()),
1308                Some(self.text_thread_store.downgrade()),
1309                context_picker_menu_handle.clone(),
1310                SuggestContextKind::File,
1311                window,
1312                cx,
1313            )
1314        });
1315
1316        let context_strip_subscription =
1317            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1318
1319        self.editing_message = Some((
1320            message_id,
1321            EditingMessageState {
1322                editor: editor.clone(),
1323                context_strip,
1324                context_picker_menu_handle,
1325                last_estimated_token_count: None,
1326                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1327                _update_token_count_task: None,
1328            },
1329        ));
1330        self.update_editing_message_token_count(false, cx);
1331        cx.notify();
1332    }
1333
1334    fn handle_context_strip_event(
1335        &mut self,
1336        _context_strip: &Entity<ContextStrip>,
1337        event: &ContextStripEvent,
1338        window: &mut Window,
1339        cx: &mut Context<Self>,
1340    ) {
1341        if let Some((_, state)) = self.editing_message.as_ref() {
1342            match event {
1343                ContextStripEvent::PickerDismissed
1344                | ContextStripEvent::BlurredEmpty
1345                | ContextStripEvent::BlurredDown => {
1346                    let editor_focus_handle = state.editor.focus_handle(cx);
1347                    window.focus(&editor_focus_handle);
1348                }
1349                ContextStripEvent::BlurredUp => {}
1350            }
1351        }
1352    }
1353
1354    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1355        let Some((message_id, state)) = self.editing_message.as_mut() else {
1356            return;
1357        };
1358
1359        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1360        state._update_token_count_task.take();
1361
1362        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1363            state.last_estimated_token_count.take();
1364            return;
1365        };
1366
1367        let editor = state.editor.clone();
1368        let thread = self.thread.clone();
1369        let message_id = *message_id;
1370
1371        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1372            if debounce {
1373                cx.background_executor()
1374                    .timer(Duration::from_millis(200))
1375                    .await;
1376            }
1377
1378            let token_count = if let Some(task) = cx
1379                .update(|cx| {
1380                    let Some(message) = thread.read(cx).message(message_id) else {
1381                        log::error!("Message that was being edited no longer exists");
1382                        return None;
1383                    };
1384                    let message_text = editor.read(cx).text(cx);
1385
1386                    if message_text.is_empty() && message.loaded_context.is_empty() {
1387                        return None;
1388                    }
1389
1390                    let mut request_message = LanguageModelRequestMessage {
1391                        role: language_model::Role::User,
1392                        content: Vec::new(),
1393                        cache: false,
1394                    };
1395
1396                    message
1397                        .loaded_context
1398                        .add_to_request_message(&mut request_message);
1399
1400                    if !message_text.is_empty() {
1401                        request_message
1402                            .content
1403                            .push(MessageContent::Text(message_text));
1404                    }
1405
1406                    let request = language_model::LanguageModelRequest {
1407                        thread_id: None,
1408                        prompt_id: None,
1409                        mode: None,
1410                        messages: vec![request_message],
1411                        tools: vec![],
1412                        tool_choice: None,
1413                        stop: vec![],
1414                        temperature: AssistantSettings::temperature_for_model(
1415                            &configured_model.model,
1416                            cx,
1417                        ),
1418                    };
1419
1420                    Some(configured_model.model.count_tokens(request, cx))
1421                })
1422                .ok()
1423                .flatten()
1424            {
1425                task.await.log_err()
1426            } else {
1427                Some(0)
1428            };
1429
1430            if let Some(token_count) = token_count {
1431                this.update(cx, |this, cx| {
1432                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1433                        return;
1434                    };
1435
1436                    state.last_estimated_token_count = Some(token_count);
1437                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1438                })
1439                .ok();
1440            };
1441        }));
1442    }
1443
1444    fn toggle_context_picker(
1445        &mut self,
1446        _: &crate::ToggleContextPicker,
1447        window: &mut Window,
1448        cx: &mut Context<Self>,
1449    ) {
1450        if let Some((_, state)) = self.editing_message.as_mut() {
1451            let handle = state.context_picker_menu_handle.clone();
1452            window.defer(cx, move |window, cx| {
1453                handle.toggle(window, cx);
1454            });
1455        }
1456    }
1457
1458    fn remove_all_context(
1459        &mut self,
1460        _: &crate::RemoveAllContext,
1461        _window: &mut Window,
1462        cx: &mut Context<Self>,
1463    ) {
1464        self.context_store.update(cx, |store, _cx| store.clear());
1465        cx.notify();
1466    }
1467
1468    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1469        if let Some((_, state)) = self.editing_message.as_mut() {
1470            if state.context_picker_menu_handle.is_deployed() {
1471                cx.propagate();
1472            } else {
1473                state.context_strip.focus_handle(cx).focus(window);
1474            }
1475        }
1476    }
1477
1478    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1479        let images = cx
1480            .read_from_clipboard()
1481            .map(|item| {
1482                item.into_entries()
1483                    .filter_map(|entry| {
1484                        if let ClipboardEntry::Image(image) = entry {
1485                            Some(image)
1486                        } else {
1487                            None
1488                        }
1489                    })
1490                    .collect::<Vec<_>>()
1491            })
1492            .unwrap_or_default();
1493
1494        if images.is_empty() {
1495            return;
1496        }
1497        cx.stop_propagation();
1498
1499        self.context_store.update(cx, |store, cx| {
1500            for image in images {
1501                store.add_image_instance(Arc::new(image), cx);
1502            }
1503        });
1504    }
1505
1506    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1507        self.editing_message.take();
1508        cx.notify();
1509    }
1510
1511    fn confirm_editing_message(
1512        &mut self,
1513        _: &menu::Confirm,
1514        window: &mut Window,
1515        cx: &mut Context<Self>,
1516    ) {
1517        let Some((message_id, state)) = self.editing_message.take() else {
1518            return;
1519        };
1520
1521        let Some(model) = self
1522            .thread
1523            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1524        else {
1525            return;
1526        };
1527
1528        if model.provider.must_accept_terms(cx) {
1529            cx.notify();
1530            return;
1531        }
1532
1533        let edited_text = state.editor.read(cx).text(cx);
1534
1535        let new_context = self
1536            .context_store
1537            .read(cx)
1538            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1539
1540        let project = self.thread.read(cx).project().clone();
1541        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1542
1543        let load_context_task =
1544            crate::context::load_context(new_context, &project, &prompt_store, cx);
1545        self._load_edited_message_context_task =
1546            Some(cx.spawn_in(window, async move |this, cx| {
1547                let context = load_context_task.await;
1548                let _ = this
1549                    .update_in(cx, |this, window, cx| {
1550                        this.thread.update(cx, |thread, cx| {
1551                            thread.edit_message(
1552                                message_id,
1553                                Role::User,
1554                                vec![MessageSegment::Text(edited_text)],
1555                                Some(context.loaded_context),
1556                                cx,
1557                            );
1558                            for message_id in this.messages_after(message_id) {
1559                                thread.delete_message(*message_id, cx);
1560                            }
1561                        });
1562
1563                        this.thread.update(cx, |thread, cx| {
1564                            thread.advance_prompt_id();
1565                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1566                        });
1567                        this._load_edited_message_context_task = None;
1568                        cx.notify();
1569                    })
1570                    .log_err();
1571            }));
1572    }
1573
1574    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1575        self.messages
1576            .iter()
1577            .position(|id| *id == message_id)
1578            .map(|index| &self.messages[index + 1..])
1579            .unwrap_or(&[])
1580    }
1581
1582    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1583        self.cancel_editing_message(&menu::Cancel, window, cx);
1584    }
1585
1586    fn handle_regenerate_click(
1587        &mut self,
1588        _: &ClickEvent,
1589        window: &mut Window,
1590        cx: &mut Context<Self>,
1591    ) {
1592        self.confirm_editing_message(&menu::Confirm, window, cx);
1593    }
1594
1595    fn handle_feedback_click(
1596        &mut self,
1597        message_id: MessageId,
1598        feedback: ThreadFeedback,
1599        window: &mut Window,
1600        cx: &mut Context<Self>,
1601    ) {
1602        let report = self.thread.update(cx, |thread, cx| {
1603            thread.report_message_feedback(message_id, feedback, cx)
1604        });
1605
1606        cx.spawn(async move |this, cx| {
1607            report.await?;
1608            this.update(cx, |_this, cx| cx.notify())
1609        })
1610        .detach_and_log_err(cx);
1611
1612        match feedback {
1613            ThreadFeedback::Positive => {
1614                self.open_feedback_editors.remove(&message_id);
1615            }
1616            ThreadFeedback::Negative => {
1617                self.handle_show_feedback_comments(message_id, window, cx);
1618            }
1619        }
1620    }
1621
1622    fn handle_show_feedback_comments(
1623        &mut self,
1624        message_id: MessageId,
1625        window: &mut Window,
1626        cx: &mut Context<Self>,
1627    ) {
1628        let buffer = cx.new(|cx| {
1629            let empty_string = String::new();
1630            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1631        });
1632
1633        let editor = cx.new(|cx| {
1634            let mut editor = Editor::new(
1635                editor::EditorMode::AutoHeight { max_lines: 4 },
1636                buffer,
1637                None,
1638                window,
1639                cx,
1640            );
1641            editor.set_placeholder_text(
1642                "What went wrong? Share your feedback so we can improve.",
1643                cx,
1644            );
1645            editor
1646        });
1647
1648        editor.read(cx).focus_handle(cx).focus(window);
1649        self.open_feedback_editors.insert(message_id, editor);
1650        cx.notify();
1651    }
1652
1653    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1654        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1655            return;
1656        };
1657
1658        let report_task = self.thread.update(cx, |thread, cx| {
1659            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1660        });
1661
1662        let comments = editor.read(cx).text(cx);
1663        if !comments.is_empty() {
1664            let thread_id = self.thread.read(cx).id().clone();
1665            let comments_value = String::from(comments.as_str());
1666
1667            let message_content = self
1668                .thread
1669                .read(cx)
1670                .message(message_id)
1671                .map(|msg| msg.to_string())
1672                .unwrap_or_default();
1673
1674            telemetry::event!(
1675                "Assistant Thread Feedback Comments",
1676                thread_id,
1677                message_id = message_id.0,
1678                message_content,
1679                comments = comments_value
1680            );
1681
1682            self.open_feedback_editors.remove(&message_id);
1683
1684            cx.spawn(async move |this, cx| {
1685                report_task.await?;
1686                this.update(cx, |_this, cx| cx.notify())
1687            })
1688            .detach_and_log_err(cx);
1689        }
1690    }
1691
1692    fn render_edit_message_editor(
1693        &self,
1694        state: &EditingMessageState,
1695        _window: &mut Window,
1696        cx: &Context<Self>,
1697    ) -> impl IntoElement {
1698        let settings = ThemeSettings::get_global(cx);
1699        let font_size = TextSize::Small
1700            .rems(cx)
1701            .to_pixels(settings.agent_font_size(cx));
1702        let line_height = font_size * 1.75;
1703
1704        let colors = cx.theme().colors();
1705
1706        let text_style = TextStyle {
1707            color: colors.text,
1708            font_family: settings.buffer_font.family.clone(),
1709            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1710            font_features: settings.buffer_font.features.clone(),
1711            font_size: font_size.into(),
1712            line_height: line_height.into(),
1713            ..Default::default()
1714        };
1715
1716        v_flex()
1717            .key_context("EditMessageEditor")
1718            .on_action(cx.listener(Self::toggle_context_picker))
1719            .on_action(cx.listener(Self::remove_all_context))
1720            .on_action(cx.listener(Self::move_up))
1721            .on_action(cx.listener(Self::cancel_editing_message))
1722            .on_action(cx.listener(Self::confirm_editing_message))
1723            .capture_action(cx.listener(Self::paste))
1724            .min_h_6()
1725            .flex_grow()
1726            .w_full()
1727            .gap_2()
1728            .child(EditorElement::new(
1729                &state.editor,
1730                EditorStyle {
1731                    background: colors.editor_background,
1732                    local_player: cx.theme().players().local(),
1733                    text: text_style,
1734                    syntax: cx.theme().syntax().clone(),
1735                    ..Default::default()
1736                },
1737            ))
1738            .child(state.context_strip.clone())
1739    }
1740
1741    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1742        let message_id = self.messages[ix];
1743        let Some(message) = self.thread.read(cx).message(message_id) else {
1744            return Empty.into_any();
1745        };
1746        let message_creases = message.creases.clone();
1747
1748        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1749            return Empty.into_any();
1750        };
1751
1752        let workspace = self.workspace.clone();
1753        let thread = self.thread.read(cx);
1754
1755        // Get all the data we need from thread before we start using it in closures
1756        let checkpoint = thread.checkpoint_for_message(message_id);
1757        let added_context = thread
1758            .context_for_message(message_id)
1759            .map(|context| AddedContext::new_attached(context, cx))
1760            .collect::<Vec<_>>();
1761
1762        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1763        let has_tool_uses = !tool_uses.is_empty();
1764        let is_generating = thread.is_generating();
1765        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1766
1767        let is_first_message = ix == 0;
1768        let is_last_message = ix == self.messages.len() - 1;
1769
1770        let loading_dots = (is_generating_stale && is_last_message)
1771            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1772
1773        let editing_message_state = self
1774            .editing_message
1775            .as_ref()
1776            .filter(|(id, _)| *id == message_id)
1777            .map(|(_, state)| state);
1778
1779        let colors = cx.theme().colors();
1780        let editor_bg_color = colors.editor_background;
1781
1782        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1783            .icon_size(IconSize::XSmall)
1784            .icon_color(Color::Ignored)
1785            .tooltip(Tooltip::text("Open Thread as Markdown"))
1786            .on_click({
1787                let thread = self.thread.clone();
1788                let workspace = self.workspace.clone();
1789                move |_, window, cx| {
1790                    if let Some(workspace) = workspace.upgrade() {
1791                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1792                            .detach_and_log_err(cx);
1793                    }
1794                }
1795            });
1796
1797        // For all items that should be aligned with the LLM's response.
1798        const RESPONSE_PADDING_X: Pixels = px(19.);
1799
1800        let show_feedback = thread.is_turn_end(ix);
1801
1802        let feedback_container = h_flex()
1803            .group("feedback_container")
1804            .mt_1()
1805            .py_2()
1806            .px(RESPONSE_PADDING_X)
1807            .mr_1()
1808            .opacity(0.4)
1809            .hover(|style| style.opacity(1.))
1810            .gap_1p5()
1811            .flex_wrap()
1812            .justify_end();
1813        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1814            Some(feedback) => feedback_container
1815                .child(
1816                    div().visible_on_hover("feedback_container").child(
1817                        Label::new(match feedback {
1818                            ThreadFeedback::Positive => "Thanks for your feedback!",
1819                            ThreadFeedback::Negative => {
1820                                "We appreciate your feedback and will use it to improve."
1821                            }
1822                        })
1823                    .color(Color::Muted)
1824                    .size(LabelSize::XSmall)
1825                    .truncate())
1826                )
1827                .child(
1828                    h_flex()
1829                        .child(
1830                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1831                                .icon_size(IconSize::XSmall)
1832                                .icon_color(match feedback {
1833                                    ThreadFeedback::Positive => Color::Accent,
1834                                    ThreadFeedback::Negative => Color::Ignored,
1835                                })
1836                                .tooltip(Tooltip::text("Helpful Response"))
1837                                .on_click(cx.listener(move |this, _, window, cx| {
1838                                    this.handle_feedback_click(
1839                                        message_id,
1840                                        ThreadFeedback::Positive,
1841                                        window,
1842                                        cx,
1843                                    );
1844                                })),
1845                        )
1846                        .child(
1847                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1848                                .icon_size(IconSize::XSmall)
1849                                .icon_color(match feedback {
1850                                    ThreadFeedback::Positive => Color::Ignored,
1851                                    ThreadFeedback::Negative => Color::Accent,
1852                                })
1853                                .tooltip(Tooltip::text("Not Helpful"))
1854                                .on_click(cx.listener(move |this, _, window, cx| {
1855                                    this.handle_feedback_click(
1856                                        message_id,
1857                                        ThreadFeedback::Negative,
1858                                        window,
1859                                        cx,
1860                                    );
1861                                })),
1862                        )
1863                        .child(open_as_markdown),
1864                )
1865                .into_any_element(),
1866            None => feedback_container
1867                .child(
1868                    div().visible_on_hover("feedback_container").child(
1869                        Label::new(
1870                            "Rating the thread sends all of your current conversation to the Zed team.",
1871                        )
1872                        .color(Color::Muted)
1873                    .size(LabelSize::XSmall)
1874                    .truncate())
1875                )
1876                .child(
1877                    h_flex()
1878                        .child(
1879                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1880                                .icon_size(IconSize::XSmall)
1881                                .icon_color(Color::Ignored)
1882                                .tooltip(Tooltip::text("Helpful Response"))
1883                                .on_click(cx.listener(move |this, _, window, cx| {
1884                                    this.handle_feedback_click(
1885                                        message_id,
1886                                        ThreadFeedback::Positive,
1887                                        window,
1888                                        cx,
1889                                    );
1890                                })),
1891                        )
1892                        .child(
1893                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1894                                .icon_size(IconSize::XSmall)
1895                                .icon_color(Color::Ignored)
1896                                .tooltip(Tooltip::text("Not Helpful"))
1897                                .on_click(cx.listener(move |this, _, window, cx| {
1898                                    this.handle_feedback_click(
1899                                        message_id,
1900                                        ThreadFeedback::Negative,
1901                                        window,
1902                                        cx,
1903                                    );
1904                                })),
1905                        )
1906                        .child(open_as_markdown),
1907                )
1908                .into_any_element(),
1909        };
1910
1911        let message_is_empty = message.should_display_content();
1912        let has_content = !message_is_empty || !added_context.is_empty();
1913
1914        let message_content = has_content.then(|| {
1915            if let Some(state) = editing_message_state.as_ref() {
1916                self.render_edit_message_editor(state, window, cx)
1917                    .into_any_element()
1918            } else {
1919                v_flex()
1920                    .w_full()
1921                    .gap_1()
1922                    .when(!message_is_empty, |parent| {
1923                        parent.child(div().min_h_6().child(self.render_message_content(
1924                            message_id,
1925                            rendered_message,
1926                            has_tool_uses,
1927                            workspace.clone(),
1928                            window,
1929                            cx,
1930                        )))
1931                    })
1932                    .when(!added_context.is_empty(), |parent| {
1933                        parent.child(h_flex().flex_wrap().gap_1().children(
1934                            added_context.into_iter().map(|added_context| {
1935                                let context = added_context.handle.clone();
1936                                ContextPill::added(added_context, false, false, None).on_click(
1937                                    Rc::new(cx.listener({
1938                                        let workspace = workspace.clone();
1939                                        move |_, _, window, cx| {
1940                                            if let Some(workspace) = workspace.upgrade() {
1941                                                open_context(&context, workspace, window, cx);
1942                                                cx.notify();
1943                                            }
1944                                        }
1945                                    })),
1946                                )
1947                            }),
1948                        ))
1949                    })
1950                    .into_any_element()
1951            }
1952        });
1953
1954        let styled_message = match message.role {
1955            Role::User => v_flex()
1956                .id(("message-container", ix))
1957                .pt_2()
1958                .pl_2()
1959                .pr_2p5()
1960                .pb_4()
1961                .child(
1962                    v_flex()
1963                        .id(("user-message", ix))
1964                        .bg(editor_bg_color)
1965                        .rounded_lg()
1966                        .shadow_md()
1967                        .border_1()
1968                        .border_color(colors.border)
1969                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1970                        .cursor_pointer()
1971                        .child(
1972                            h_flex()
1973                                .p_2p5()
1974                                .gap_1()
1975                                .children(message_content)
1976                                .when_some(editing_message_state, |this, state| {
1977                                    let focus_handle = state.editor.focus_handle(cx).clone();
1978                                    this.w_full().justify_between().child(
1979                                        h_flex()
1980                                            .gap_0p5()
1981                                            .child(
1982                                                IconButton::new(
1983                                                    "cancel-edit-message",
1984                                                    IconName::Close,
1985                                                )
1986                                                .shape(ui::IconButtonShape::Square)
1987                                                .icon_color(Color::Error)
1988                                                .tooltip({
1989                                                    let focus_handle = focus_handle.clone();
1990                                                    move |window, cx| {
1991                                                        Tooltip::for_action_in(
1992                                                            "Cancel Edit",
1993                                                            &menu::Cancel,
1994                                                            &focus_handle,
1995                                                            window,
1996                                                            cx,
1997                                                        )
1998                                                    }
1999                                                })
2000                                                .on_click(cx.listener(Self::handle_cancel_click)),
2001                                            )
2002                                            .child(
2003                                                IconButton::new(
2004                                                    "confirm-edit-message",
2005                                                    IconName::Check,
2006                                                )
2007                                                .disabled(state.editor.read(cx).is_empty(cx))
2008                                                .shape(ui::IconButtonShape::Square)
2009                                                .icon_color(Color::Success)
2010                                                .tooltip({
2011                                                    let focus_handle = focus_handle.clone();
2012                                                    move |window, cx| {
2013                                                        Tooltip::for_action_in(
2014                                                            "Regenerate",
2015                                                            &menu::Confirm,
2016                                                            &focus_handle,
2017                                                            window,
2018                                                            cx,
2019                                                        )
2020                                                    }
2021                                                })
2022                                                .on_click(
2023                                                    cx.listener(Self::handle_regenerate_click),
2024                                                ),
2025                                            ),
2026                                    )
2027                                }),
2028                        )
2029                        .when(editing_message_state.is_none(), |this| {
2030                            this.tooltip(Tooltip::text("Click To Edit"))
2031                        })
2032                        .on_click(cx.listener({
2033                            let message_segments = message.segments.clone();
2034                            move |this, _, window, cx| {
2035                                this.start_editing_message(
2036                                    message_id,
2037                                    &message_segments,
2038                                    &message_creases,
2039                                    window,
2040                                    cx,
2041                                );
2042                            }
2043                        })),
2044                ),
2045            Role::Assistant => v_flex()
2046                .id(("message-container", ix))
2047                .px(RESPONSE_PADDING_X)
2048                .gap_2()
2049                .children(message_content)
2050                .when(has_tool_uses, |parent| {
2051                    parent.children(tool_uses.into_iter().map(|tool_use| {
2052                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2053                    }))
2054                }),
2055            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2056                v_flex()
2057                    .bg(colors.editor_background)
2058                    .rounded_sm()
2059                    .child(div().p_4().children(message_content)),
2060            ),
2061        };
2062
2063        let after_editing_message = self
2064            .editing_message
2065            .as_ref()
2066            .map_or(false, |(editing_message_id, _)| {
2067                message_id > *editing_message_id
2068            });
2069
2070        let panel_background = cx.theme().colors().panel_background;
2071
2072        v_flex()
2073            .w_full()
2074            .map(|parent| {
2075                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2076                    let mut is_pending = false;
2077                    let mut error = None;
2078                    if let Some(last_restore_checkpoint) =
2079                        self.thread.read(cx).last_restore_checkpoint()
2080                    {
2081                        if last_restore_checkpoint.message_id() == message_id {
2082                            match last_restore_checkpoint {
2083                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2084                                LastRestoreCheckpoint::Error { error: err, .. } => {
2085                                    error = Some(err.clone());
2086                                }
2087                            }
2088                        }
2089                    }
2090
2091                    let restore_checkpoint_button =
2092                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2093                            .icon(if error.is_some() {
2094                                IconName::XCircle
2095                            } else {
2096                                IconName::Undo
2097                            })
2098                            .icon_size(IconSize::XSmall)
2099                            .icon_position(IconPosition::Start)
2100                            .icon_color(if error.is_some() {
2101                                Some(Color::Error)
2102                            } else {
2103                                None
2104                            })
2105                            .label_size(LabelSize::XSmall)
2106                            .disabled(is_pending)
2107                            .on_click(cx.listener(move |this, _, _window, cx| {
2108                                this.thread.update(cx, |thread, cx| {
2109                                    thread
2110                                        .restore_checkpoint(checkpoint.clone(), cx)
2111                                        .detach_and_log_err(cx);
2112                                });
2113                            }));
2114
2115                    let restore_checkpoint_button = if is_pending {
2116                        restore_checkpoint_button
2117                            .with_animation(
2118                                ("pulsating-restore-checkpoint-button", ix),
2119                                Animation::new(Duration::from_secs(2))
2120                                    .repeat()
2121                                    .with_easing(pulsating_between(0.6, 1.)),
2122                                |label, delta| label.alpha(delta),
2123                            )
2124                            .into_any_element()
2125                    } else if let Some(error) = error {
2126                        restore_checkpoint_button
2127                            .tooltip(Tooltip::text(error.to_string()))
2128                            .into_any_element()
2129                    } else {
2130                        restore_checkpoint_button.into_any_element()
2131                    };
2132
2133                    parent.child(
2134                        h_flex()
2135                            .pt_2p5()
2136                            .px_2p5()
2137                            .w_full()
2138                            .gap_1()
2139                            .child(ui::Divider::horizontal())
2140                            .child(restore_checkpoint_button)
2141                            .child(ui::Divider::horizontal()),
2142                    )
2143                } else {
2144                    parent
2145                }
2146            })
2147            .when(is_first_message, |parent| {
2148                parent.child(self.render_rules_item(cx))
2149            })
2150            .child(styled_message)
2151            .when(is_generating && is_last_message, |this| {
2152                this.child(
2153                    h_flex()
2154                        .h_8()
2155                        .mt_2()
2156                        .mb_4()
2157                        .ml_4()
2158                        .py_1p5()
2159                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2160                )
2161            })
2162            .when(show_feedback, move |parent| {
2163                parent.child(feedback_items).when_some(
2164                    self.open_feedback_editors.get(&message_id),
2165                    move |parent, feedback_editor| {
2166                        let focus_handle = feedback_editor.focus_handle(cx);
2167                        parent.child(
2168                            v_flex()
2169                                .key_context("AgentFeedbackMessageEditor")
2170                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2171                                    this.open_feedback_editors.remove(&message_id);
2172                                    cx.notify();
2173                                }))
2174                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2175                                    this.submit_feedback_message(message_id, cx);
2176                                    cx.notify();
2177                                }))
2178                                .on_action(cx.listener(Self::confirm_editing_message))
2179                                .mb_2()
2180                                .mx_4()
2181                                .p_2()
2182                                .rounded_md()
2183                                .border_1()
2184                                .border_color(cx.theme().colors().border)
2185                                .bg(cx.theme().colors().editor_background)
2186                                .child(feedback_editor.clone())
2187                                .child(
2188                                    h_flex()
2189                                        .gap_1()
2190                                        .justify_end()
2191                                        .child(
2192                                            Button::new("dismiss-feedback-message", "Cancel")
2193                                                .label_size(LabelSize::Small)
2194                                                .key_binding(
2195                                                    KeyBinding::for_action_in(
2196                                                        &menu::Cancel,
2197                                                        &focus_handle,
2198                                                        window,
2199                                                        cx,
2200                                                    )
2201                                                    .map(|kb| kb.size(rems_from_px(10.))),
2202                                                )
2203                                                .on_click(cx.listener(
2204                                                    move |this, _, _window, cx| {
2205                                                        this.open_feedback_editors
2206                                                            .remove(&message_id);
2207                                                        cx.notify();
2208                                                    },
2209                                                )),
2210                                        )
2211                                        .child(
2212                                            Button::new(
2213                                                "submit-feedback-message",
2214                                                "Share Feedback",
2215                                            )
2216                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2217                                            .label_size(LabelSize::Small)
2218                                            .key_binding(
2219                                                KeyBinding::for_action_in(
2220                                                    &menu::Confirm,
2221                                                    &focus_handle,
2222                                                    window,
2223                                                    cx,
2224                                                )
2225                                                .map(|kb| kb.size(rems_from_px(10.))),
2226                                            )
2227                                            .on_click(
2228                                                cx.listener(move |this, _, _window, cx| {
2229                                                    this.submit_feedback_message(message_id, cx);
2230                                                    cx.notify()
2231                                                }),
2232                                            ),
2233                                        ),
2234                                ),
2235                        )
2236                    },
2237                )
2238            })
2239            .when(after_editing_message, |parent| {
2240                // Backdrop to dim out the whole thread below the editing user message
2241                parent.relative().child(
2242                    div()
2243                        .stop_mouse_events_except_scroll()
2244                        .absolute()
2245                        .inset_0()
2246                        .size_full()
2247                        .bg(panel_background)
2248                        .opacity(0.8),
2249                )
2250            })
2251            .into_any()
2252    }
2253
2254    fn render_message_content(
2255        &self,
2256        message_id: MessageId,
2257        rendered_message: &RenderedMessage,
2258        has_tool_uses: bool,
2259        workspace: WeakEntity<Workspace>,
2260        window: &Window,
2261        cx: &Context<Self>,
2262    ) -> impl IntoElement {
2263        let is_last_message = self.messages.last() == Some(&message_id);
2264        let is_generating = self.thread.read(cx).is_generating();
2265        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2266            rendered_message
2267                .segments
2268                .iter()
2269                .enumerate()
2270                .next_back()
2271                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2272                .map(|(index, _)| index)
2273        } else {
2274            None
2275        };
2276
2277        let message_role = self
2278            .thread
2279            .read(cx)
2280            .message(message_id)
2281            .map(|m| m.role)
2282            .unwrap_or(Role::User);
2283
2284        let is_assistant_message = message_role == Role::Assistant;
2285        let is_user_message = message_role == Role::User;
2286
2287        v_flex()
2288            .text_ui(cx)
2289            .gap_2()
2290            .when(is_user_message, |this| this.text_xs())
2291            .children(
2292                rendered_message.segments.iter().enumerate().map(
2293                    |(index, segment)| match segment {
2294                        RenderedMessageSegment::Thinking {
2295                            content,
2296                            scroll_handle,
2297                        } => self
2298                            .render_message_thinking_segment(
2299                                message_id,
2300                                index,
2301                                content.clone(),
2302                                &scroll_handle,
2303                                Some(index) == pending_thinking_segment_index,
2304                                window,
2305                                cx,
2306                            )
2307                            .into_any_element(),
2308                        RenderedMessageSegment::Text(markdown) => {
2309                            let markdown_element = MarkdownElement::new(
2310                                markdown.clone(),
2311                                if is_user_message {
2312                                    let mut style = default_markdown_style(window, cx);
2313                                    let mut text_style = window.text_style();
2314                                    let theme_settings = ThemeSettings::get_global(cx);
2315
2316                                    let buffer_font = theme_settings.buffer_font.family.clone();
2317                                    let buffer_font_size = TextSize::Small.rems(cx);
2318
2319                                    text_style.refine(&TextStyleRefinement {
2320                                        font_family: Some(buffer_font),
2321                                        font_size: Some(buffer_font_size.into()),
2322                                        ..Default::default()
2323                                    });
2324
2325                                    style.base_text_style = text_style;
2326                                    style
2327                                } else {
2328                                    default_markdown_style(window, cx)
2329                                },
2330                            );
2331
2332                            let markdown_element = if is_assistant_message {
2333                                markdown_element.code_block_renderer(
2334                                    markdown::CodeBlockRenderer::Custom {
2335                                        render: Arc::new({
2336                                            let workspace = workspace.clone();
2337                                            let active_thread = cx.entity();
2338                                            move |kind,
2339                                                  parsed_markdown,
2340                                                  range,
2341                                                  metadata,
2342                                                  window,
2343                                                  cx| {
2344                                                render_markdown_code_block(
2345                                                    message_id,
2346                                                    range.start,
2347                                                    kind,
2348                                                    parsed_markdown,
2349                                                    metadata,
2350                                                    active_thread.clone(),
2351                                                    workspace.clone(),
2352                                                    window,
2353                                                    cx,
2354                                                )
2355                                            }
2356                                        }),
2357                                        transform: Some(Arc::new({
2358                                            let active_thread = cx.entity();
2359                                            let editor_bg = cx.theme().colors().editor_background;
2360
2361                                            move |el, range, metadata, _, cx| {
2362                                                let can_expand = metadata.line_count
2363                                                    > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
2364                                                if !can_expand {
2365                                                    return el;
2366                                                }
2367
2368                                                let is_expanded = active_thread
2369                                                    .read(cx)
2370                                                    .expanded_code_blocks
2371                                                    .get(&(message_id, range.start))
2372                                                    .copied()
2373                                                    .unwrap_or(false);
2374                                                if is_expanded {
2375                                                    return el;
2376                                                }
2377
2378                                                el.child(
2379                                                    div()
2380                                                        .absolute()
2381                                                        .bottom_0()
2382                                                        .left_0()
2383                                                        .w_full()
2384                                                        .h_1_4()
2385                                                        .rounded_b_lg()
2386                                                        .bg(linear_gradient(
2387                                                            0.,
2388                                                            linear_color_stop(editor_bg, 0.),
2389                                                            linear_color_stop(
2390                                                                editor_bg.opacity(0.),
2391                                                                1.,
2392                                                            ),
2393                                                        )),
2394                                                )
2395                                            }
2396                                        })),
2397                                    },
2398                                )
2399                            } else {
2400                                markdown_element.code_block_renderer(
2401                                    markdown::CodeBlockRenderer::Default {
2402                                        copy_button: false,
2403                                        copy_button_on_hover: false,
2404                                        border: true,
2405                                    },
2406                                )
2407                            };
2408
2409                            div()
2410                                .child(markdown_element.on_url_click({
2411                                    let workspace = self.workspace.clone();
2412                                    move |text, window, cx| {
2413                                        open_markdown_link(text, workspace.clone(), window, cx);
2414                                    }
2415                                }))
2416                                .into_any_element()
2417                        }
2418                    },
2419                ),
2420            )
2421    }
2422
2423    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2424        cx.theme().colors().border.opacity(0.5)
2425    }
2426
2427    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2428        cx.theme()
2429            .colors()
2430            .element_background
2431            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2432    }
2433
2434    fn render_message_thinking_segment(
2435        &self,
2436        message_id: MessageId,
2437        ix: usize,
2438        markdown: Entity<Markdown>,
2439        scroll_handle: &ScrollHandle,
2440        pending: bool,
2441        window: &Window,
2442        cx: &Context<Self>,
2443    ) -> impl IntoElement {
2444        let is_open = self
2445            .expanded_thinking_segments
2446            .get(&(message_id, ix))
2447            .copied()
2448            .unwrap_or_default();
2449
2450        let editor_bg = cx.theme().colors().panel_background;
2451
2452        div().map(|this| {
2453            if pending {
2454                this.v_flex()
2455                    .mt_neg_2()
2456                    .mb_1p5()
2457                    .child(
2458                        h_flex()
2459                            .group("disclosure-header")
2460                            .justify_between()
2461                            .child(
2462                                h_flex()
2463                                    .gap_1p5()
2464                                    .child(
2465                                        Icon::new(IconName::LightBulb)
2466                                            .size(IconSize::XSmall)
2467                                            .color(Color::Muted),
2468                                    )
2469                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2470                            )
2471                            .child(
2472                                h_flex()
2473                                    .gap_1()
2474                                    .child(
2475                                        div().visible_on_hover("disclosure-header").child(
2476                                            Disclosure::new("thinking-disclosure", is_open)
2477                                                .opened_icon(IconName::ChevronUp)
2478                                                .closed_icon(IconName::ChevronDown)
2479                                                .on_click(cx.listener({
2480                                                    move |this, _event, _window, _cx| {
2481                                                        let is_open = this
2482                                                            .expanded_thinking_segments
2483                                                            .entry((message_id, ix))
2484                                                            .or_insert(false);
2485
2486                                                        *is_open = !*is_open;
2487                                                    }
2488                                                })),
2489                                        ),
2490                                    )
2491                                    .child({
2492                                        Icon::new(IconName::ArrowCircle)
2493                                            .color(Color::Accent)
2494                                            .size(IconSize::Small)
2495                                            .with_animation(
2496                                                "arrow-circle",
2497                                                Animation::new(Duration::from_secs(2)).repeat(),
2498                                                |icon, delta| {
2499                                                    icon.transform(Transformation::rotate(
2500                                                        percentage(delta),
2501                                                    ))
2502                                                },
2503                                            )
2504                                    }),
2505                            ),
2506                    )
2507                    .when(!is_open, |this| {
2508                        let gradient_overlay = div()
2509                            .rounded_b_lg()
2510                            .h_full()
2511                            .absolute()
2512                            .w_full()
2513                            .bottom_0()
2514                            .left_0()
2515                            .bg(linear_gradient(
2516                                180.,
2517                                linear_color_stop(editor_bg, 1.),
2518                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2519                            ));
2520
2521                        this.child(
2522                            div()
2523                                .relative()
2524                                .bg(editor_bg)
2525                                .rounded_b_lg()
2526                                .mt_2()
2527                                .pl_4()
2528                                .child(
2529                                    div()
2530                                        .id(("thinking-content", ix))
2531                                        .max_h_20()
2532                                        .track_scroll(scroll_handle)
2533                                        .text_ui_sm(cx)
2534                                        .overflow_hidden()
2535                                        .child(
2536                                            MarkdownElement::new(
2537                                                markdown.clone(),
2538                                                default_markdown_style(window, cx),
2539                                            )
2540                                            .on_url_click({
2541                                                let workspace = self.workspace.clone();
2542                                                move |text, window, cx| {
2543                                                    open_markdown_link(
2544                                                        text,
2545                                                        workspace.clone(),
2546                                                        window,
2547                                                        cx,
2548                                                    );
2549                                                }
2550                                            }),
2551                                        ),
2552                                )
2553                                .child(gradient_overlay),
2554                        )
2555                    })
2556                    .when(is_open, |this| {
2557                        this.child(
2558                            div()
2559                                .id(("thinking-content", ix))
2560                                .h_full()
2561                                .bg(editor_bg)
2562                                .text_ui_sm(cx)
2563                                .child(
2564                                    MarkdownElement::new(
2565                                        markdown.clone(),
2566                                        default_markdown_style(window, cx),
2567                                    )
2568                                    .on_url_click({
2569                                        let workspace = self.workspace.clone();
2570                                        move |text, window, cx| {
2571                                            open_markdown_link(text, workspace.clone(), window, cx);
2572                                        }
2573                                    }),
2574                                ),
2575                        )
2576                    })
2577            } else {
2578                this.v_flex()
2579                    .mt_neg_2()
2580                    .child(
2581                        h_flex()
2582                            .group("disclosure-header")
2583                            .pr_1()
2584                            .justify_between()
2585                            .opacity(0.8)
2586                            .hover(|style| style.opacity(1.))
2587                            .child(
2588                                h_flex()
2589                                    .gap_1p5()
2590                                    .child(
2591                                        Icon::new(IconName::LightBulb)
2592                                            .size(IconSize::XSmall)
2593                                            .color(Color::Muted),
2594                                    )
2595                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2596                            )
2597                            .child(
2598                                div().visible_on_hover("disclosure-header").child(
2599                                    Disclosure::new("thinking-disclosure", is_open)
2600                                        .opened_icon(IconName::ChevronUp)
2601                                        .closed_icon(IconName::ChevronDown)
2602                                        .on_click(cx.listener({
2603                                            move |this, _event, _window, _cx| {
2604                                                let is_open = this
2605                                                    .expanded_thinking_segments
2606                                                    .entry((message_id, ix))
2607                                                    .or_insert(false);
2608
2609                                                *is_open = !*is_open;
2610                                            }
2611                                        })),
2612                                ),
2613                            ),
2614                    )
2615                    .child(
2616                        div()
2617                            .id(("thinking-content", ix))
2618                            .relative()
2619                            .mt_1p5()
2620                            .ml_1p5()
2621                            .pl_2p5()
2622                            .border_l_1()
2623                            .border_color(cx.theme().colors().border_variant)
2624                            .text_ui_sm(cx)
2625                            .when(is_open, |this| {
2626                                this.child(
2627                                    MarkdownElement::new(
2628                                        markdown.clone(),
2629                                        default_markdown_style(window, cx),
2630                                    )
2631                                    .on_url_click({
2632                                        let workspace = self.workspace.clone();
2633                                        move |text, window, cx| {
2634                                            open_markdown_link(text, workspace.clone(), window, cx);
2635                                        }
2636                                    }),
2637                                )
2638                            }),
2639                    )
2640            }
2641        })
2642    }
2643
2644    fn render_tool_use(
2645        &self,
2646        tool_use: ToolUse,
2647        window: &mut Window,
2648        workspace: WeakEntity<Workspace>,
2649        cx: &mut Context<Self>,
2650    ) -> impl IntoElement + use<> {
2651        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2652            return card.render(&tool_use.status, window, workspace, cx);
2653        }
2654
2655        let is_open = self
2656            .expanded_tool_uses
2657            .get(&tool_use.id)
2658            .copied()
2659            .unwrap_or_default();
2660
2661        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2662
2663        let fs = self
2664            .workspace
2665            .upgrade()
2666            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2667        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2668        let needs_confirmation_tools = tool_use.needs_confirmation;
2669
2670        let status_icons = div().child(match &tool_use.status {
2671            ToolUseStatus::NeedsConfirmation => {
2672                let icon = Icon::new(IconName::Warning)
2673                    .color(Color::Warning)
2674                    .size(IconSize::Small);
2675                icon.into_any_element()
2676            }
2677            ToolUseStatus::Pending
2678            | ToolUseStatus::InputStillStreaming
2679            | ToolUseStatus::Running => {
2680                let icon = Icon::new(IconName::ArrowCircle)
2681                    .color(Color::Accent)
2682                    .size(IconSize::Small);
2683                icon.with_animation(
2684                    "arrow-circle",
2685                    Animation::new(Duration::from_secs(2)).repeat(),
2686                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2687                )
2688                .into_any_element()
2689            }
2690            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2691            ToolUseStatus::Error(_) => {
2692                let icon = Icon::new(IconName::Close)
2693                    .color(Color::Error)
2694                    .size(IconSize::Small);
2695                icon.into_any_element()
2696            }
2697        });
2698
2699        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2700        let results_content_container = || v_flex().p_2().gap_0p5();
2701
2702        let results_content = v_flex()
2703            .gap_1()
2704            .child(
2705                results_content_container()
2706                    .child(
2707                        Label::new("Input")
2708                            .size(LabelSize::XSmall)
2709                            .color(Color::Muted)
2710                            .buffer_font(cx),
2711                    )
2712                    .child(
2713                        div()
2714                            .w_full()
2715                            .text_ui_sm(cx)
2716                            .children(rendered_tool_use.as_ref().map(|rendered| {
2717                                MarkdownElement::new(
2718                                    rendered.input.clone(),
2719                                    tool_use_markdown_style(window, cx),
2720                                )
2721                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2722                                    copy_button: false,
2723                                    copy_button_on_hover: false,
2724                                    border: false,
2725                                })
2726                                .on_url_click({
2727                                    let workspace = self.workspace.clone();
2728                                    move |text, window, cx| {
2729                                        open_markdown_link(text, workspace.clone(), window, cx);
2730                                    }
2731                                })
2732                            })),
2733                    ),
2734            )
2735            .map(|container| match tool_use.status {
2736                ToolUseStatus::Finished(_) => container.child(
2737                    results_content_container()
2738                        .border_t_1()
2739                        .border_color(self.tool_card_border_color(cx))
2740                        .child(
2741                            Label::new("Result")
2742                                .size(LabelSize::XSmall)
2743                                .color(Color::Muted)
2744                                .buffer_font(cx),
2745                        )
2746                        .child(div().w_full().text_ui_sm(cx).children(
2747                            rendered_tool_use.as_ref().map(|rendered| {
2748                                MarkdownElement::new(
2749                                    rendered.output.clone(),
2750                                    tool_use_markdown_style(window, cx),
2751                                )
2752                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2753                                    copy_button: false,
2754                                    copy_button_on_hover: false,
2755                                    border: false,
2756                                })
2757                                .on_url_click({
2758                                    let workspace = self.workspace.clone();
2759                                    move |text, window, cx| {
2760                                        open_markdown_link(text, workspace.clone(), window, cx);
2761                                    }
2762                                })
2763                                .into_any_element()
2764                            }),
2765                        )),
2766                ),
2767                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2768                    results_content_container()
2769                        .border_t_1()
2770                        .border_color(self.tool_card_border_color(cx))
2771                        .child(
2772                            h_flex()
2773                                .gap_1()
2774                                .child(
2775                                    Icon::new(IconName::ArrowCircle)
2776                                        .size(IconSize::Small)
2777                                        .color(Color::Accent)
2778                                        .with_animation(
2779                                            "arrow-circle",
2780                                            Animation::new(Duration::from_secs(2)).repeat(),
2781                                            |icon, delta| {
2782                                                icon.transform(Transformation::rotate(percentage(
2783                                                    delta,
2784                                                )))
2785                                            },
2786                                        ),
2787                                )
2788                                .child(
2789                                    Label::new("Running…")
2790                                        .size(LabelSize::XSmall)
2791                                        .color(Color::Muted)
2792                                        .buffer_font(cx),
2793                                ),
2794                        ),
2795                ),
2796                ToolUseStatus::Error(_) => container.child(
2797                    results_content_container()
2798                        .border_t_1()
2799                        .border_color(self.tool_card_border_color(cx))
2800                        .child(
2801                            Label::new("Error")
2802                                .size(LabelSize::XSmall)
2803                                .color(Color::Muted)
2804                                .buffer_font(cx),
2805                        )
2806                        .child(
2807                            div()
2808                                .text_ui_sm(cx)
2809                                .children(rendered_tool_use.as_ref().map(|rendered| {
2810                                    MarkdownElement::new(
2811                                        rendered.output.clone(),
2812                                        tool_use_markdown_style(window, cx),
2813                                    )
2814                                    .on_url_click({
2815                                        let workspace = self.workspace.clone();
2816                                        move |text, window, cx| {
2817                                            open_markdown_link(text, workspace.clone(), window, cx);
2818                                        }
2819                                    })
2820                                    .into_any_element()
2821                                })),
2822                        ),
2823                ),
2824                ToolUseStatus::Pending => container,
2825                ToolUseStatus::NeedsConfirmation => container.child(
2826                    results_content_container()
2827                        .border_t_1()
2828                        .border_color(self.tool_card_border_color(cx))
2829                        .child(
2830                            Label::new("Asking Permission")
2831                                .size(LabelSize::Small)
2832                                .color(Color::Muted)
2833                                .buffer_font(cx),
2834                        ),
2835                ),
2836            });
2837
2838        let gradient_overlay = |color: Hsla| {
2839            div()
2840                .h_full()
2841                .absolute()
2842                .w_12()
2843                .bottom_0()
2844                .map(|element| {
2845                    if is_status_finished {
2846                        element.right_6()
2847                    } else {
2848                        element.right(px(44.))
2849                    }
2850                })
2851                .bg(linear_gradient(
2852                    90.,
2853                    linear_color_stop(color, 1.),
2854                    linear_color_stop(color.opacity(0.2), 0.),
2855                ))
2856        };
2857
2858        v_flex().gap_1().mb_2().map(|element| {
2859            if !needs_confirmation_tools {
2860                element.child(
2861                    v_flex()
2862                        .child(
2863                            h_flex()
2864                                .group("disclosure-header")
2865                                .relative()
2866                                .gap_1p5()
2867                                .justify_between()
2868                                .opacity(0.8)
2869                                .hover(|style| style.opacity(1.))
2870                                .when(!is_status_finished, |this| this.pr_2())
2871                                .child(
2872                                    h_flex()
2873                                        .id("tool-label-container")
2874                                        .gap_1p5()
2875                                        .max_w_full()
2876                                        .overflow_x_scroll()
2877                                        .child(
2878                                            Icon::new(tool_use.icon)
2879                                                .size(IconSize::XSmall)
2880                                                .color(Color::Muted),
2881                                        )
2882                                        .child(
2883                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2884                                                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| {
2885                                                    open_markdown_link(text, workspace.clone(), window, cx);
2886                                                }}))
2887                                            ),
2888                                        ),
2889                                )
2890                                .child(
2891                                    h_flex()
2892                                        .gap_1()
2893                                        .child(
2894                                            div().visible_on_hover("disclosure-header").child(
2895                                                Disclosure::new("tool-use-disclosure", is_open)
2896                                                    .opened_icon(IconName::ChevronUp)
2897                                                    .closed_icon(IconName::ChevronDown)
2898                                                    .on_click(cx.listener({
2899                                                        let tool_use_id = tool_use.id.clone();
2900                                                        move |this, _event, _window, _cx| {
2901                                                            let is_open = this
2902                                                                .expanded_tool_uses
2903                                                                .entry(tool_use_id.clone())
2904                                                                .or_insert(false);
2905
2906                                                            *is_open = !*is_open;
2907                                                        }
2908                                                    })),
2909                                            ),
2910                                        )
2911                                        .child(status_icons),
2912                                )
2913                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2914                        )
2915                        .map(|parent| {
2916                            if !is_open {
2917                                return parent;
2918                            }
2919
2920                            parent.child(
2921                                v_flex()
2922                                    .mt_1()
2923                                    .border_1()
2924                                    .border_color(self.tool_card_border_color(cx))
2925                                    .bg(cx.theme().colors().editor_background)
2926                                    .rounded_lg()
2927                                    .child(results_content),
2928                            )
2929                        }),
2930                )
2931            } else {
2932                v_flex()
2933                    .mb_2()
2934                    .rounded_lg()
2935                    .border_1()
2936                    .border_color(self.tool_card_border_color(cx))
2937                    .overflow_hidden()
2938                    .child(
2939                        h_flex()
2940                            .group("disclosure-header")
2941                            .relative()
2942                            .justify_between()
2943                            .py_1()
2944                            .map(|element| {
2945                                if is_status_finished {
2946                                    element.pl_2().pr_0p5()
2947                                } else {
2948                                    element.px_2()
2949                                }
2950                            })
2951                            .bg(self.tool_card_header_bg(cx))
2952                            .map(|element| {
2953                                if is_open {
2954                                    element.border_b_1().rounded_t_md()
2955                                } else if needs_confirmation {
2956                                    element.rounded_t_md()
2957                                } else {
2958                                    element.rounded_md()
2959                                }
2960                            })
2961                            .border_color(self.tool_card_border_color(cx))
2962                            .child(
2963                                h_flex()
2964                                    .id("tool-label-container")
2965                                    .gap_1p5()
2966                                    .max_w_full()
2967                                    .overflow_x_scroll()
2968                                    .child(
2969                                        Icon::new(tool_use.icon)
2970                                            .size(IconSize::XSmall)
2971                                            .color(Color::Muted),
2972                                    )
2973                                    .child(
2974                                        h_flex().pr_8().text_ui_sm(cx).children(
2975                                            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| {
2976                                                open_markdown_link(text, workspace.clone(), window, cx);
2977                                            }}))
2978                                        ),
2979                                    ),
2980                            )
2981                            .child(
2982                                h_flex()
2983                                    .gap_1()
2984                                    .child(
2985                                        div().visible_on_hover("disclosure-header").child(
2986                                            Disclosure::new("tool-use-disclosure", is_open)
2987                                                .opened_icon(IconName::ChevronUp)
2988                                                .closed_icon(IconName::ChevronDown)
2989                                                .on_click(cx.listener({
2990                                                    let tool_use_id = tool_use.id.clone();
2991                                                    move |this, _event, _window, _cx| {
2992                                                        let is_open = this
2993                                                            .expanded_tool_uses
2994                                                            .entry(tool_use_id.clone())
2995                                                            .or_insert(false);
2996
2997                                                        *is_open = !*is_open;
2998                                                    }
2999                                                })),
3000                                        ),
3001                                    )
3002                                    .child(status_icons),
3003                            )
3004                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3005                    )
3006                    .map(|parent| {
3007                        if !is_open {
3008                            return parent;
3009                        }
3010
3011                        parent.child(
3012                            v_flex()
3013                                .bg(cx.theme().colors().editor_background)
3014                                .map(|element| {
3015                                    if  needs_confirmation {
3016                                        element.rounded_none()
3017                                    } else {
3018                                        element.rounded_b_lg()
3019                                    }
3020                                })
3021                                .child(results_content),
3022                        )
3023                    })
3024                    .when(needs_confirmation, |this| {
3025                        this.child(
3026                            h_flex()
3027                                .py_1()
3028                                .pl_2()
3029                                .pr_1()
3030                                .gap_1()
3031                                .justify_between()
3032                                .bg(cx.theme().colors().editor_background)
3033                                .border_t_1()
3034                                .border_color(self.tool_card_border_color(cx))
3035                                .rounded_b_lg()
3036                                .child(
3037                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3038                                )
3039                                .child(
3040                                    h_flex()
3041                                        .gap_0p5()
3042                                        .child({
3043                                            let tool_id = tool_use.id.clone();
3044                                            Button::new(
3045                                                "always-allow-tool-action",
3046                                                "Always Allow",
3047                                            )
3048                                            .label_size(LabelSize::Small)
3049                                            .icon(IconName::CheckDouble)
3050                                            .icon_position(IconPosition::Start)
3051                                            .icon_size(IconSize::Small)
3052                                            .icon_color(Color::Success)
3053                                            .tooltip(move |window, cx|  {
3054                                                Tooltip::with_meta(
3055                                                    "Never ask for permission",
3056                                                    None,
3057                                                    "Restore the original behavior in your Agent Panel settings",
3058                                                    window,
3059                                                    cx,
3060                                                )
3061                                            })
3062                                            .on_click(cx.listener(
3063                                                move |this, event, window, cx| {
3064                                                    if let Some(fs) = fs.clone() {
3065                                                        update_settings_file::<AssistantSettings>(
3066                                                            fs.clone(),
3067                                                            cx,
3068                                                            |settings, _| {
3069                                                                settings.set_always_allow_tool_actions(true);
3070                                                            },
3071                                                        );
3072                                                    }
3073                                                    this.handle_allow_tool(
3074                                                        tool_id.clone(),
3075                                                        event,
3076                                                        window,
3077                                                        cx,
3078                                                    )
3079                                                },
3080                                            ))
3081                                        })
3082                                        .child(ui::Divider::vertical())
3083                                        .child({
3084                                            let tool_id = tool_use.id.clone();
3085                                            Button::new("allow-tool-action", "Allow")
3086                                                .label_size(LabelSize::Small)
3087                                                .icon(IconName::Check)
3088                                                .icon_position(IconPosition::Start)
3089                                                .icon_size(IconSize::Small)
3090                                                .icon_color(Color::Success)
3091                                                .on_click(cx.listener(
3092                                                    move |this, event, window, cx| {
3093                                                        this.handle_allow_tool(
3094                                                            tool_id.clone(),
3095                                                            event,
3096                                                            window,
3097                                                            cx,
3098                                                        )
3099                                                    },
3100                                                ))
3101                                        })
3102                                        .child({
3103                                            let tool_id = tool_use.id.clone();
3104                                            let tool_name: Arc<str> = tool_use.name.into();
3105                                            Button::new("deny-tool", "Deny")
3106                                                .label_size(LabelSize::Small)
3107                                                .icon(IconName::Close)
3108                                                .icon_position(IconPosition::Start)
3109                                                .icon_size(IconSize::Small)
3110                                                .icon_color(Color::Error)
3111                                                .on_click(cx.listener(
3112                                                    move |this, event, window, cx| {
3113                                                        this.handle_deny_tool(
3114                                                            tool_id.clone(),
3115                                                            tool_name.clone(),
3116                                                            event,
3117                                                            window,
3118                                                            cx,
3119                                                        )
3120                                                    },
3121                                                ))
3122                                        }),
3123                                ),
3124                        )
3125                    })
3126            }
3127        }).into_any_element()
3128    }
3129
3130    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3131        let project_context = self.thread.read(cx).project_context();
3132        let project_context = project_context.borrow();
3133        let Some(project_context) = project_context.as_ref() else {
3134            return div().into_any();
3135        };
3136
3137        let user_rules_text = if project_context.user_rules.is_empty() {
3138            None
3139        } else if project_context.user_rules.len() == 1 {
3140            let user_rules = &project_context.user_rules[0];
3141
3142            match user_rules.title.as_ref() {
3143                Some(title) => Some(format!("Using \"{title}\" user rule")),
3144                None => Some("Using user rule".into()),
3145            }
3146        } else {
3147            Some(format!(
3148                "Using {} user rules",
3149                project_context.user_rules.len()
3150            ))
3151        };
3152
3153        let first_user_rules_id = project_context
3154            .user_rules
3155            .first()
3156            .map(|user_rules| user_rules.uuid.0);
3157
3158        let rules_files = project_context
3159            .worktrees
3160            .iter()
3161            .filter_map(|worktree| worktree.rules_file.as_ref())
3162            .collect::<Vec<_>>();
3163
3164        let rules_file_text = match rules_files.as_slice() {
3165            &[] => None,
3166            &[rules_file] => Some(format!(
3167                "Using project {:?} file",
3168                rules_file.path_in_worktree
3169            )),
3170            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3171        };
3172
3173        if user_rules_text.is_none() && rules_file_text.is_none() {
3174            return div().into_any();
3175        }
3176
3177        v_flex()
3178            .pt_2()
3179            .px_2p5()
3180            .gap_1()
3181            .when_some(user_rules_text, |parent, user_rules_text| {
3182                parent.child(
3183                    h_flex()
3184                        .w_full()
3185                        .child(
3186                            Icon::new(RULES_ICON)
3187                                .size(IconSize::XSmall)
3188                                .color(Color::Disabled),
3189                        )
3190                        .child(
3191                            Label::new(user_rules_text)
3192                                .size(LabelSize::XSmall)
3193                                .color(Color::Muted)
3194                                .truncate()
3195                                .buffer_font(cx)
3196                                .ml_1p5()
3197                                .mr_0p5(),
3198                        )
3199                        .child(
3200                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3201                                .shape(ui::IconButtonShape::Square)
3202                                .icon_size(IconSize::XSmall)
3203                                .icon_color(Color::Ignored)
3204                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3205                                .tooltip(Tooltip::text("View User Rules"))
3206                                .on_click(move |_event, window, cx| {
3207                                    window.dispatch_action(
3208                                        Box::new(OpenRulesLibrary {
3209                                            prompt_to_select: first_user_rules_id,
3210                                        }),
3211                                        cx,
3212                                    )
3213                                }),
3214                        ),
3215                )
3216            })
3217            .when_some(rules_file_text, |parent, rules_file_text| {
3218                parent.child(
3219                    h_flex()
3220                        .w_full()
3221                        .child(
3222                            Icon::new(IconName::File)
3223                                .size(IconSize::XSmall)
3224                                .color(Color::Disabled),
3225                        )
3226                        .child(
3227                            Label::new(rules_file_text)
3228                                .size(LabelSize::XSmall)
3229                                .color(Color::Muted)
3230                                .buffer_font(cx)
3231                                .ml_1p5()
3232                                .mr_0p5(),
3233                        )
3234                        .child(
3235                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3236                                .shape(ui::IconButtonShape::Square)
3237                                .icon_size(IconSize::XSmall)
3238                                .icon_color(Color::Ignored)
3239                                .on_click(cx.listener(Self::handle_open_rules))
3240                                .tooltip(Tooltip::text("View Rules")),
3241                        ),
3242                )
3243            })
3244            .into_any()
3245    }
3246
3247    fn handle_allow_tool(
3248        &mut self,
3249        tool_use_id: LanguageModelToolUseId,
3250        _: &ClickEvent,
3251        window: &mut Window,
3252        cx: &mut Context<Self>,
3253    ) {
3254        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3255            .thread
3256            .read(cx)
3257            .pending_tool(&tool_use_id)
3258            .map(|tool_use| tool_use.status.clone())
3259        {
3260            self.thread.update(cx, |thread, cx| {
3261                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3262                    thread.run_tool(
3263                        c.tool_use_id.clone(),
3264                        c.ui_text.clone(),
3265                        c.input.clone(),
3266                        c.request.clone(),
3267                        c.tool.clone(),
3268                        configured.model,
3269                        Some(window.window_handle()),
3270                        cx,
3271                    );
3272                }
3273            });
3274        }
3275    }
3276
3277    fn handle_deny_tool(
3278        &mut self,
3279        tool_use_id: LanguageModelToolUseId,
3280        tool_name: Arc<str>,
3281        _: &ClickEvent,
3282        window: &mut Window,
3283        cx: &mut Context<Self>,
3284    ) {
3285        let window_handle = window.window_handle();
3286        self.thread.update(cx, |thread, cx| {
3287            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3288        });
3289    }
3290
3291    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3292        let project_context = self.thread.read(cx).project_context();
3293        let project_context = project_context.borrow();
3294        let Some(project_context) = project_context.as_ref() else {
3295            return;
3296        };
3297
3298        let project_entry_ids = project_context
3299            .worktrees
3300            .iter()
3301            .flat_map(|worktree| worktree.rules_file.as_ref())
3302            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3303            .collect::<Vec<_>>();
3304
3305        self.workspace
3306            .update(cx, move |workspace, cx| {
3307                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3308                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3309                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3310                let project = workspace.project().read(cx);
3311                let project_paths = project_entry_ids
3312                    .into_iter()
3313                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3314                    .collect::<Vec<_>>();
3315                for project_path in project_paths {
3316                    workspace
3317                        .open_path(project_path, None, true, window, cx)
3318                        .detach_and_log_err(cx);
3319                }
3320            })
3321            .ok();
3322    }
3323
3324    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3325        for window in self.notifications.drain(..) {
3326            window
3327                .update(cx, |_, window, _| {
3328                    window.remove_window();
3329                })
3330                .ok();
3331
3332            self.notification_subscriptions.remove(&window);
3333        }
3334    }
3335
3336    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3337        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3338            return None;
3339        }
3340
3341        Some(
3342            div()
3343                .occlude()
3344                .id("active-thread-scrollbar")
3345                .on_mouse_move(cx.listener(|_, _, _, cx| {
3346                    cx.notify();
3347                    cx.stop_propagation()
3348                }))
3349                .on_hover(|_, _, cx| {
3350                    cx.stop_propagation();
3351                })
3352                .on_any_mouse_down(|_, _, cx| {
3353                    cx.stop_propagation();
3354                })
3355                .on_mouse_up(
3356                    MouseButton::Left,
3357                    cx.listener(|_, _, _, cx| {
3358                        cx.stop_propagation();
3359                    }),
3360                )
3361                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3362                    cx.notify();
3363                }))
3364                .h_full()
3365                .absolute()
3366                .right_1()
3367                .top_1()
3368                .bottom_0()
3369                .w(px(12.))
3370                .cursor_default()
3371                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3372        )
3373    }
3374
3375    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3376        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3377        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3378            cx.background_executor()
3379                .timer(SCROLLBAR_SHOW_INTERVAL)
3380                .await;
3381            thread
3382                .update(cx, |thread, cx| {
3383                    if !thread.scrollbar_state.is_dragging() {
3384                        thread.show_scrollbar = false;
3385                        cx.notify();
3386                    }
3387                })
3388                .log_err();
3389        }))
3390    }
3391}
3392
3393pub enum ActiveThreadEvent {
3394    EditingMessageTokenCountChanged,
3395}
3396
3397impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3398
3399impl Render for ActiveThread {
3400    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3401        v_flex()
3402            .size_full()
3403            .relative()
3404            .on_mouse_move(cx.listener(|this, _, _, cx| {
3405                this.show_scrollbar = true;
3406                this.hide_scrollbar_later(cx);
3407                cx.notify();
3408            }))
3409            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3410                this.show_scrollbar = true;
3411                this.hide_scrollbar_later(cx);
3412                cx.notify();
3413            }))
3414            .on_mouse_up(
3415                MouseButton::Left,
3416                cx.listener(|this, _, _, cx| {
3417                    this.hide_scrollbar_later(cx);
3418                }),
3419            )
3420            .child(list(self.list_state.clone()).flex_grow())
3421            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3422                this.child(scrollbar)
3423            })
3424    }
3425}
3426
3427pub(crate) fn open_active_thread_as_markdown(
3428    thread: Entity<Thread>,
3429    workspace: Entity<Workspace>,
3430    window: &mut Window,
3431    cx: &mut App,
3432) -> Task<anyhow::Result<()>> {
3433    let markdown_language_task = workspace
3434        .read(cx)
3435        .app_state()
3436        .languages
3437        .language_for_name("Markdown");
3438
3439    window.spawn(cx, async move |cx| {
3440        let markdown_language = markdown_language_task.await?;
3441
3442        workspace.update_in(cx, |workspace, window, cx| {
3443            let thread = thread.read(cx);
3444            let markdown = thread.to_markdown(cx)?;
3445            let thread_summary = thread
3446                .summary()
3447                .map(|summary| summary.to_string())
3448                .unwrap_or_else(|| "Thread".to_string());
3449
3450            let project = workspace.project().clone();
3451
3452            if !project.read(cx).is_local() {
3453                anyhow::bail!("failed to open active thread as markdown in remote project");
3454            }
3455
3456            let buffer = project.update(cx, |project, cx| {
3457                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3458            });
3459            let buffer =
3460                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3461
3462            workspace.add_item_to_active_pane(
3463                Box::new(cx.new(|cx| {
3464                    let mut editor =
3465                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3466                    editor.set_breadcrumb_header(thread_summary);
3467                    editor
3468                })),
3469                None,
3470                true,
3471                window,
3472                cx,
3473            );
3474
3475            anyhow::Ok(())
3476        })??;
3477        anyhow::Ok(())
3478    })
3479}
3480
3481pub(crate) fn open_context(
3482    context: &AgentContextHandle,
3483    workspace: Entity<Workspace>,
3484    window: &mut Window,
3485    cx: &mut App,
3486) {
3487    match context {
3488        AgentContextHandle::File(file_context) => {
3489            if let Some(project_path) = file_context.project_path(cx) {
3490                workspace.update(cx, |workspace, cx| {
3491                    workspace
3492                        .open_path(project_path, None, true, window, cx)
3493                        .detach_and_log_err(cx);
3494                });
3495            }
3496        }
3497
3498        AgentContextHandle::Directory(directory_context) => {
3499            let entry_id = directory_context.entry_id;
3500            workspace.update(cx, |workspace, cx| {
3501                workspace.project().update(cx, |_project, cx| {
3502                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3503                })
3504            })
3505        }
3506
3507        AgentContextHandle::Symbol(symbol_context) => {
3508            let buffer = symbol_context.buffer.read(cx);
3509            if let Some(project_path) = buffer.project_path(cx) {
3510                let snapshot = buffer.snapshot();
3511                let target_position = symbol_context.range.start.to_point(&snapshot);
3512                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3513                    .detach();
3514            }
3515        }
3516
3517        AgentContextHandle::Selection(selection_context) => {
3518            let buffer = selection_context.buffer.read(cx);
3519            if let Some(project_path) = buffer.project_path(cx) {
3520                let snapshot = buffer.snapshot();
3521                let target_position = selection_context.range.start.to_point(&snapshot);
3522
3523                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3524                    .detach();
3525            }
3526        }
3527
3528        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3529            cx.open_url(&fetched_url_context.url);
3530        }
3531
3532        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3533            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3534                panel.update(cx, |panel, cx| {
3535                    panel.open_thread(thread_context.thread.clone(), window, cx);
3536                });
3537            }
3538        }),
3539
3540        AgentContextHandle::TextThread(text_thread_context) => {
3541            workspace.update(cx, |workspace, cx| {
3542                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3543                    panel.update(cx, |panel, cx| {
3544                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3545                    });
3546                }
3547            })
3548        }
3549
3550        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3551            Box::new(OpenRulesLibrary {
3552                prompt_to_select: Some(rules_context.prompt_id.0),
3553            }),
3554            cx,
3555        ),
3556
3557        AgentContextHandle::Image(_) => {}
3558    }
3559}
3560
3561fn open_editor_at_position(
3562    project_path: project::ProjectPath,
3563    target_position: Point,
3564    workspace: &Entity<Workspace>,
3565    window: &mut Window,
3566    cx: &mut App,
3567) -> Task<()> {
3568    let open_task = workspace.update(cx, |workspace, cx| {
3569        workspace.open_path(project_path, None, true, window, cx)
3570    });
3571    window.spawn(cx, async move |cx| {
3572        if let Some(active_editor) = open_task
3573            .await
3574            .log_err()
3575            .and_then(|item| item.downcast::<Editor>())
3576        {
3577            active_editor
3578                .downgrade()
3579                .update_in(cx, |editor, window, cx| {
3580                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3581                })
3582                .log_err();
3583        }
3584    })
3585}