active_thread.rs

   1use crate::AgentPanel;
   2use crate::context::{AgentContextHandle, RULES_ICON};
   3use crate::context_picker::{ContextPicker, MentionLink};
   4use crate::context_store::ContextStore;
   5use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   6use crate::message_editor::insert_message_creases;
   7use crate::thread::{
   8    LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, Thread, ThreadError,
   9    ThreadEvent, ThreadFeedback, ThreadSummary,
  10};
  11use crate::thread_store::{RulesLoadingError, TextThreadStore, ThreadStore};
  12use crate::tool_use::{PendingToolUseStatus, ToolUse};
  13use crate::ui::{
  14    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  15};
  16use anyhow::Context as _;
  17use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  18use assistant_tool::ToolUseStatus;
  19use collections::{HashMap, HashSet};
  20use editor::actions::{MoveUp, Paste};
  21use editor::scroll::Autoscroll;
  22use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  23use gpui::{
  24    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  25    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  26    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  27    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  28    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  29    pulsating_between,
  30};
  31use language::{Buffer, Language, LanguageRegistry};
  32use language_model::{
  33    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  34};
  35use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  36use markdown::{
  37    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  38};
  39use project::{ProjectEntryId, ProjectItem as _};
  40use rope::Point;
  41use settings::{Settings as _, SettingsStore, update_settings_file};
  42use std::ffi::OsStr;
  43use std::path::Path;
  44use std::rc::Rc;
  45use std::sync::Arc;
  46use std::time::Duration;
  47use text::ToPoint;
  48use theme::ThemeSettings;
  49use ui::{
  50    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  51    Tooltip, prelude::*,
  52};
  53use util::ResultExt as _;
  54use util::markdown::MarkdownCodeBlock;
  55use workspace::Workspace;
  56use zed_actions::assistant::OpenRulesLibrary;
  57
  58pub struct ActiveThread {
  59    context_store: Entity<ContextStore>,
  60    language_registry: Arc<LanguageRegistry>,
  61    thread_store: Entity<ThreadStore>,
  62    text_thread_store: Entity<TextThreadStore>,
  63    thread: Entity<Thread>,
  64    workspace: WeakEntity<Workspace>,
  65    save_thread_task: Option<Task<()>>,
  66    messages: Vec<MessageId>,
  67    list_state: ListState,
  68    scrollbar_state: ScrollbarState,
  69    show_scrollbar: bool,
  70    hide_scrollbar_task: Option<Task<()>>,
  71    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  72    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  73    editing_message: Option<(MessageId, EditingMessageState)>,
  74    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  75    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  76    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  77    last_error: Option<ThreadError>,
  78    notifications: Vec<WindowHandle<AgentNotification>>,
  79    copied_code_block_ids: HashSet<(MessageId, usize)>,
  80    _subscriptions: Vec<Subscription>,
  81    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  82    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  83    _load_edited_message_context_task: Option<Task<()>>,
  84}
  85
  86struct RenderedMessage {
  87    language_registry: Arc<LanguageRegistry>,
  88    segments: Vec<RenderedMessageSegment>,
  89}
  90
  91#[derive(Clone)]
  92struct RenderedToolUse {
  93    label: Entity<Markdown>,
  94    input: Entity<Markdown>,
  95    output: Entity<Markdown>,
  96}
  97
  98impl RenderedMessage {
  99    fn from_segments(
 100        segments: &[MessageSegment],
 101        language_registry: Arc<LanguageRegistry>,
 102        cx: &mut App,
 103    ) -> Self {
 104        let mut this = Self {
 105            language_registry,
 106            segments: Vec::with_capacity(segments.len()),
 107        };
 108        for segment in segments {
 109            this.push_segment(segment, cx);
 110        }
 111        this
 112    }
 113
 114    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 115        if let Some(RenderedMessageSegment::Thinking {
 116            content,
 117            scroll_handle,
 118        }) = self.segments.last_mut()
 119        {
 120            content.update(cx, |markdown, cx| {
 121                markdown.append(text, cx);
 122            });
 123            scroll_handle.scroll_to_bottom();
 124        } else {
 125            self.segments.push(RenderedMessageSegment::Thinking {
 126                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 127                scroll_handle: ScrollHandle::default(),
 128            });
 129        }
 130    }
 131
 132    fn append_text(&mut self, text: &String, cx: &mut App) {
 133        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 134            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 135        } else {
 136            self.segments
 137                .push(RenderedMessageSegment::Text(parse_markdown(
 138                    SharedString::from(text),
 139                    self.language_registry.clone(),
 140                    cx,
 141                )));
 142        }
 143    }
 144
 145    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 146        match segment {
 147            MessageSegment::Thinking { text, .. } => {
 148                self.segments.push(RenderedMessageSegment::Thinking {
 149                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 150                    scroll_handle: ScrollHandle::default(),
 151                })
 152            }
 153            MessageSegment::Text(text) => {
 154                self.segments
 155                    .push(RenderedMessageSegment::Text(parse_markdown(
 156                        text.into(),
 157                        self.language_registry.clone(),
 158                        cx,
 159                    )))
 160            }
 161            MessageSegment::RedactedThinking(_) => {}
 162        };
 163    }
 164}
 165
 166enum RenderedMessageSegment {
 167    Thinking {
 168        content: Entity<Markdown>,
 169        scroll_handle: ScrollHandle,
 170    },
 171    Text(Entity<Markdown>),
 172}
 173
 174fn parse_markdown(
 175    text: SharedString,
 176    language_registry: Arc<LanguageRegistry>,
 177    cx: &mut App,
 178) -> Entity<Markdown> {
 179    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 180}
 181
 182pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 183    let theme_settings = ThemeSettings::get_global(cx);
 184    let colors = cx.theme().colors();
 185    let ui_font_size = TextSize::Default.rems(cx);
 186    let buffer_font_size = TextSize::Small.rems(cx);
 187    let mut text_style = window.text_style();
 188    let line_height = buffer_font_size * 1.75;
 189
 190    text_style.refine(&TextStyleRefinement {
 191        font_family: Some(theme_settings.ui_font.family.clone()),
 192        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 193        font_features: Some(theme_settings.ui_font.features.clone()),
 194        font_size: Some(ui_font_size.into()),
 195        line_height: Some(line_height.into()),
 196        color: Some(cx.theme().colors().text),
 197        ..Default::default()
 198    });
 199
 200    MarkdownStyle {
 201        base_text_style: text_style.clone(),
 202        syntax: cx.theme().syntax().clone(),
 203        selection_background_color: cx.theme().players().local().selection,
 204        code_block_overflow_x_scroll: true,
 205        table_overflow_x_scroll: true,
 206        heading_level_styles: Some(HeadingLevelStyles {
 207            h1: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.15).into()),
 209                ..Default::default()
 210            }),
 211            h2: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.1).into()),
 213                ..Default::default()
 214            }),
 215            h3: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.05).into()),
 217                ..Default::default()
 218            }),
 219            h4: Some(TextStyleRefinement {
 220                font_size: Some(rems(1.).into()),
 221                ..Default::default()
 222            }),
 223            h5: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.95).into()),
 225                ..Default::default()
 226            }),
 227            h6: Some(TextStyleRefinement {
 228                font_size: Some(rems(0.875).into()),
 229                ..Default::default()
 230            }),
 231        }),
 232        code_block: StyleRefinement {
 233            padding: EdgesRefinement {
 234                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238            },
 239            background: Some(colors.editor_background.into()),
 240            text: Some(TextStyleRefinement {
 241                font_family: Some(theme_settings.buffer_font.family.clone()),
 242                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 243                font_features: Some(theme_settings.buffer_font.features.clone()),
 244                font_size: Some(buffer_font_size.into()),
 245                ..Default::default()
 246            }),
 247            ..Default::default()
 248        },
 249        inline_code: TextStyleRefinement {
 250            font_family: Some(theme_settings.buffer_font.family.clone()),
 251            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 252            font_features: Some(theme_settings.buffer_font.features.clone()),
 253            font_size: Some(buffer_font_size.into()),
 254            background_color: Some(colors.editor_foreground.opacity(0.08)),
 255            ..Default::default()
 256        },
 257        link: TextStyleRefinement {
 258            background_color: Some(colors.editor_foreground.opacity(0.025)),
 259            underline: Some(UnderlineStyle {
 260                color: Some(colors.text_accent.opacity(0.5)),
 261                thickness: px(1.),
 262                ..Default::default()
 263            }),
 264            ..Default::default()
 265        },
 266        link_callback: Some(Rc::new(move |url, cx| {
 267            if MentionLink::is_valid(url) {
 268                let colors = cx.theme().colors();
 269                Some(TextStyleRefinement {
 270                    background_color: Some(colors.element_background),
 271                    ..Default::default()
 272                })
 273            } else {
 274                None
 275            }
 276        })),
 277        ..Default::default()
 278    }
 279}
 280
 281fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 282    let theme_settings = ThemeSettings::get_global(cx);
 283    let colors = cx.theme().colors();
 284    let ui_font_size = TextSize::Default.rems(cx);
 285    let buffer_font_size = TextSize::Small.rems(cx);
 286    let mut text_style = window.text_style();
 287
 288    text_style.refine(&TextStyleRefinement {
 289        font_family: Some(theme_settings.ui_font.family.clone()),
 290        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 291        font_features: Some(theme_settings.ui_font.features.clone()),
 292        font_size: Some(ui_font_size.into()),
 293        color: Some(cx.theme().colors().text),
 294        ..Default::default()
 295    });
 296
 297    MarkdownStyle {
 298        base_text_style: text_style,
 299        syntax: cx.theme().syntax().clone(),
 300        selection_background_color: cx.theme().players().local().selection,
 301        code_block_overflow_x_scroll: true,
 302        code_block: StyleRefinement {
 303            margin: EdgesRefinement::default(),
 304            padding: EdgesRefinement::default(),
 305            background: Some(colors.editor_background.into()),
 306            border_color: None,
 307            border_widths: EdgesRefinement::default(),
 308            text: Some(TextStyleRefinement {
 309                font_family: Some(theme_settings.buffer_font.family.clone()),
 310                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 311                font_features: Some(theme_settings.buffer_font.features.clone()),
 312                font_size: Some(buffer_font_size.into()),
 313                ..Default::default()
 314            }),
 315            ..Default::default()
 316        },
 317        inline_code: TextStyleRefinement {
 318            font_family: Some(theme_settings.buffer_font.family.clone()),
 319            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 320            font_features: Some(theme_settings.buffer_font.features.clone()),
 321            font_size: Some(TextSize::XSmall.rems(cx).into()),
 322            ..Default::default()
 323        },
 324        heading: StyleRefinement {
 325            text: Some(TextStyleRefinement {
 326                font_size: Some(ui_font_size.into()),
 327                ..Default::default()
 328            }),
 329            ..Default::default()
 330        },
 331        ..Default::default()
 332    }
 333}
 334
 335const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 336const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 337
 338fn render_markdown_code_block(
 339    message_id: MessageId,
 340    ix: usize,
 341    kind: &CodeBlockKind,
 342    parsed_markdown: &ParsedMarkdown,
 343    metadata: CodeBlockMetadata,
 344    active_thread: Entity<ActiveThread>,
 345    workspace: WeakEntity<Workspace>,
 346    _window: &Window,
 347    cx: &App,
 348) -> Div {
 349    let label = match kind {
 350        CodeBlockKind::Indented => None,
 351        CodeBlockKind::Fenced => Some(
 352            h_flex()
 353                .gap_1()
 354                .child(
 355                    Icon::new(IconName::Code)
 356                        .color(Color::Muted)
 357                        .size(IconSize::XSmall),
 358                )
 359                .child(Label::new("untitled").size(LabelSize::Small))
 360                .into_any_element(),
 361        ),
 362        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 363            parsed_markdown.languages_by_name.get(raw_language_name),
 364            raw_language_name.clone(),
 365            cx,
 366        )),
 367        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 368            // We tell the model to use /dev/null for the path instead of using ```language
 369            // because otherwise it consistently fails to use code citations.
 370            if path_range.path.starts_with("/dev/null") {
 371                let ext = path_range
 372                    .path
 373                    .extension()
 374                    .and_then(OsStr::to_str)
 375                    .map(|str| SharedString::new(str.to_string()))
 376                    .unwrap_or_default();
 377
 378                render_code_language(
 379                    parsed_markdown
 380                        .languages_by_path
 381                        .get(&path_range.path)
 382                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 383                    ext,
 384                    cx,
 385                )
 386            } else {
 387                let content = if let Some(parent) = path_range.path.parent() {
 388                    let file_name = file_name.to_string_lossy().to_string();
 389                    let path = parent.to_string_lossy().to_string();
 390                    let path_and_file = format!("{}/{}", path, file_name);
 391
 392                    h_flex()
 393                        .id(("code-block-header-label", ix))
 394                        .ml_1()
 395                        .gap_1()
 396                        .child(Label::new(file_name).size(LabelSize::Small))
 397                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 398                        .tooltip(move |window, cx| {
 399                            Tooltip::with_meta(
 400                                "Jump to File",
 401                                None,
 402                                path_and_file.clone(),
 403                                window,
 404                                cx,
 405                            )
 406                        })
 407                        .into_any_element()
 408                } else {
 409                    Label::new(path_range.path.to_string_lossy().to_string())
 410                        .size(LabelSize::Small)
 411                        .ml_1()
 412                        .into_any_element()
 413                };
 414
 415                h_flex()
 416                    .id(("code-block-header-button", ix))
 417                    .w_full()
 418                    .max_w_full()
 419                    .px_1()
 420                    .gap_0p5()
 421                    .cursor_pointer()
 422                    .rounded_sm()
 423                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 424                    .child(
 425                        h_flex()
 426                            .gap_0p5()
 427                            .children(
 428                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 429                                    .map(Icon::from_path)
 430                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 431                            )
 432                            .child(content)
 433                            .child(
 434                                Icon::new(IconName::ArrowUpRight)
 435                                    .size(IconSize::XSmall)
 436                                    .color(Color::Ignored),
 437                            ),
 438                    )
 439                    .on_click({
 440                        let path_range = path_range.clone();
 441                        move |_, window, cx| {
 442                            workspace
 443                                .update(cx, |workspace, cx| {
 444                                    open_path(&path_range, window, workspace, cx)
 445                                })
 446                                .ok();
 447                        }
 448                    })
 449                    .into_any_element()
 450            }
 451        }),
 452    };
 453
 454    let codeblock_was_copied = active_thread
 455        .read(cx)
 456        .copied_code_block_ids
 457        .contains(&(message_id, ix));
 458
 459    let can_expand = metadata.line_count >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
 460
 461    let is_expanded = if can_expand {
 462        active_thread.read(cx).is_codeblock_expanded(message_id, ix)
 463    } else {
 464        false
 465    };
 466
 467    let codeblock_header_bg = cx
 468        .theme()
 469        .colors()
 470        .element_background
 471        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 472
 473    let control_buttons = h_flex()
 474        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 475        .absolute()
 476        .top_0()
 477        .right_0()
 478        .h_full()
 479        .bg(codeblock_header_bg)
 480        .rounded_tr_md()
 481        .px_1()
 482        .gap_1()
 483        .child(
 484            IconButton::new(
 485                ("copy-markdown-code", ix),
 486                if codeblock_was_copied {
 487                    IconName::Check
 488                } else {
 489                    IconName::Copy
 490                },
 491            )
 492            .icon_color(Color::Muted)
 493            .shape(ui::IconButtonShape::Square)
 494            .tooltip(Tooltip::text("Copy Code"))
 495            .on_click({
 496                let active_thread = active_thread.clone();
 497                let parsed_markdown = parsed_markdown.clone();
 498                let code_block_range = metadata.content_range.clone();
 499                move |_event, _window, cx| {
 500                    active_thread.update(cx, |this, cx| {
 501                        this.copied_code_block_ids.insert((message_id, ix));
 502
 503                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 504                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 505
 506                        cx.spawn(async move |this, cx| {
 507                            cx.background_executor().timer(Duration::from_secs(2)).await;
 508
 509                            cx.update(|cx| {
 510                                this.update(cx, |this, cx| {
 511                                    this.copied_code_block_ids.remove(&(message_id, ix));
 512                                    cx.notify();
 513                                })
 514                            })
 515                            .ok();
 516                        })
 517                        .detach();
 518                    });
 519                }
 520            }),
 521        )
 522        .when(can_expand, |header| {
 523            header.child(
 524                IconButton::new(
 525                    ("expand-collapse-code", ix),
 526                    if is_expanded {
 527                        IconName::ChevronUp
 528                    } else {
 529                        IconName::ChevronDown
 530                    },
 531                )
 532                .icon_color(Color::Muted)
 533                .shape(ui::IconButtonShape::Square)
 534                .tooltip(Tooltip::text(if is_expanded {
 535                    "Collapse Code"
 536                } else {
 537                    "Expand Code"
 538                }))
 539                .on_click({
 540                    let active_thread = active_thread.clone();
 541                    move |_event, _window, cx| {
 542                        active_thread.update(cx, |this, cx| {
 543                            this.toggle_codeblock_expanded(message_id, ix);
 544                            cx.notify();
 545                        });
 546                    }
 547                }),
 548            )
 549        });
 550
 551    let codeblock_header = h_flex()
 552        .relative()
 553        .p_1()
 554        .gap_1()
 555        .justify_between()
 556        .border_b_1()
 557        .border_color(cx.theme().colors().border.opacity(0.6))
 558        .bg(codeblock_header_bg)
 559        .rounded_t_md()
 560        .children(label)
 561        .child(control_buttons);
 562
 563    v_flex()
 564        .group(CODEBLOCK_CONTAINER_GROUP)
 565        .my_2()
 566        .overflow_hidden()
 567        .rounded_lg()
 568        .border_1()
 569        .border_color(cx.theme().colors().border.opacity(0.6))
 570        .bg(cx.theme().colors().editor_background)
 571        .child(codeblock_header)
 572        .when(can_expand && !is_expanded, |this| this.max_h_80())
 573}
 574
 575fn open_path(
 576    path_range: &PathWithRange,
 577    window: &mut Window,
 578    workspace: &mut Workspace,
 579    cx: &mut Context<'_, Workspace>,
 580) {
 581    let Some(project_path) = workspace
 582        .project()
 583        .read(cx)
 584        .find_project_path(&path_range.path, cx)
 585    else {
 586        return; // TODO instead of just bailing out, open that path in a buffer.
 587    };
 588
 589    let Some(target) = path_range.range.as_ref().map(|range| {
 590        Point::new(
 591            // Line number is 1-based
 592            range.start.line.saturating_sub(1),
 593            range.start.col.unwrap_or(0),
 594        )
 595    }) else {
 596        return;
 597    };
 598    let open_task = workspace.open_path(project_path, None, true, window, cx);
 599    window
 600        .spawn(cx, async move |cx| {
 601            let item = open_task.await?;
 602            if let Some(active_editor) = item.downcast::<Editor>() {
 603                active_editor
 604                    .update_in(cx, |editor, window, cx| {
 605                        editor.go_to_singleton_buffer_point(target, window, cx);
 606                    })
 607                    .ok();
 608            }
 609            anyhow::Ok(())
 610        })
 611        .detach_and_log_err(cx);
 612}
 613
 614fn render_code_language(
 615    language: Option<&Arc<Language>>,
 616    name_fallback: SharedString,
 617    cx: &App,
 618) -> AnyElement {
 619    let icon_path = language.and_then(|language| {
 620        language
 621            .config()
 622            .matcher
 623            .path_suffixes
 624            .iter()
 625            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 626            .map(Icon::from_path)
 627    });
 628
 629    let language_label = language
 630        .map(|language| language.name().into())
 631        .unwrap_or(name_fallback);
 632
 633    h_flex()
 634        .gap_1()
 635        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 636        .child(Label::new(language_label).size(LabelSize::Small))
 637        .into_any_element()
 638}
 639
 640fn open_markdown_link(
 641    text: SharedString,
 642    workspace: WeakEntity<Workspace>,
 643    window: &mut Window,
 644    cx: &mut App,
 645) {
 646    let Some(workspace) = workspace.upgrade() else {
 647        cx.open_url(&text);
 648        return;
 649    };
 650
 651    match MentionLink::try_parse(&text, &workspace, cx) {
 652        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 653            if entry.is_dir() {
 654                workspace.project().update(cx, |_, cx| {
 655                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 656                })
 657            } else {
 658                workspace
 659                    .open_path(path, None, true, window, cx)
 660                    .detach_and_log_err(cx);
 661            }
 662        }),
 663        Some(MentionLink::Symbol(path, symbol_name)) => {
 664            let open_task = workspace.update(cx, |workspace, cx| {
 665                workspace.open_path(path, None, true, window, cx)
 666            });
 667            window
 668                .spawn(cx, async move |cx| {
 669                    let active_editor = open_task
 670                        .await?
 671                        .downcast::<Editor>()
 672                        .context("Item is not an editor")?;
 673                    active_editor.update_in(cx, |editor, window, cx| {
 674                        let symbol_range = editor
 675                            .buffer()
 676                            .read(cx)
 677                            .snapshot(cx)
 678                            .outline(None)
 679                            .and_then(|outline| {
 680                                outline
 681                                    .find_most_similar(&symbol_name)
 682                                    .map(|(_, item)| item.range.clone())
 683                            })
 684                            .context("Could not find matching symbol")?;
 685
 686                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 687                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 688                        });
 689                        anyhow::Ok(())
 690                    })
 691                })
 692                .detach_and_log_err(cx);
 693        }
 694        Some(MentionLink::Selection(path, line_range)) => {
 695            let open_task = workspace.update(cx, |workspace, cx| {
 696                workspace.open_path(path, None, true, window, cx)
 697            });
 698            window
 699                .spawn(cx, async move |cx| {
 700                    let active_editor = open_task
 701                        .await?
 702                        .downcast::<Editor>()
 703                        .context("Item is not an editor")?;
 704                    active_editor.update_in(cx, |editor, window, cx| {
 705                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 706                            s.select_ranges([Point::new(line_range.start as u32, 0)
 707                                ..Point::new(line_range.start as u32, 0)])
 708                        });
 709                        anyhow::Ok(())
 710                    })
 711                })
 712                .detach_and_log_err(cx);
 713        }
 714        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 715            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 716                panel.update(cx, |panel, cx| {
 717                    panel
 718                        .open_thread_by_id(&thread_id, window, cx)
 719                        .detach_and_log_err(cx)
 720                });
 721            }
 722        }),
 723        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 724            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 725                panel.update(cx, |panel, cx| {
 726                    panel
 727                        .open_saved_prompt_editor(path, window, cx)
 728                        .detach_and_log_err(cx);
 729                });
 730            }
 731        }),
 732        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 733        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 734            Box::new(OpenRulesLibrary {
 735                prompt_to_select: Some(prompt_id.0),
 736            }),
 737            cx,
 738        ),
 739        None => cx.open_url(&text),
 740    }
 741}
 742
 743struct EditingMessageState {
 744    editor: Entity<Editor>,
 745    context_strip: Entity<ContextStrip>,
 746    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 747    last_estimated_token_count: Option<usize>,
 748    _subscriptions: [Subscription; 2],
 749    _update_token_count_task: Option<Task<()>>,
 750}
 751
 752impl ActiveThread {
 753    pub fn new(
 754        thread: Entity<Thread>,
 755        thread_store: Entity<ThreadStore>,
 756        text_thread_store: Entity<TextThreadStore>,
 757        context_store: Entity<ContextStore>,
 758        language_registry: Arc<LanguageRegistry>,
 759        workspace: WeakEntity<Workspace>,
 760        window: &mut Window,
 761        cx: &mut Context<Self>,
 762    ) -> Self {
 763        let subscriptions = vec![
 764            cx.observe(&thread, |_, _, cx| cx.notify()),
 765            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 766            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 767            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 768        ];
 769
 770        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 771            let this = cx.entity().downgrade();
 772            move |ix, window: &mut Window, cx: &mut App| {
 773                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 774                    .unwrap()
 775            }
 776        });
 777        let mut this = Self {
 778            language_registry,
 779            thread_store,
 780            text_thread_store,
 781            context_store,
 782            thread: thread.clone(),
 783            workspace,
 784            save_thread_task: None,
 785            messages: Vec::new(),
 786            rendered_messages_by_id: HashMap::default(),
 787            rendered_tool_uses: HashMap::default(),
 788            expanded_tool_uses: HashMap::default(),
 789            expanded_thinking_segments: HashMap::default(),
 790            expanded_code_blocks: HashMap::default(),
 791            list_state: list_state.clone(),
 792            scrollbar_state: ScrollbarState::new(list_state),
 793            show_scrollbar: false,
 794            hide_scrollbar_task: None,
 795            editing_message: None,
 796            last_error: None,
 797            copied_code_block_ids: HashSet::default(),
 798            notifications: Vec::new(),
 799            _subscriptions: subscriptions,
 800            notification_subscriptions: HashMap::default(),
 801            open_feedback_editors: HashMap::default(),
 802            _load_edited_message_context_task: None,
 803        };
 804
 805        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 806            this.push_message(&message.id, &message.segments, window, cx);
 807
 808            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 809                this.render_tool_use_markdown(
 810                    tool_use.id.clone(),
 811                    tool_use.ui_text.clone(),
 812                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 813                    tool_use.status.text(),
 814                    cx,
 815                );
 816            }
 817        }
 818
 819        this
 820    }
 821
 822    pub fn thread(&self) -> &Entity<Thread> {
 823        &self.thread
 824    }
 825
 826    pub fn is_empty(&self) -> bool {
 827        self.messages.is_empty()
 828    }
 829
 830    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 831        self.thread.read(cx).summary()
 832    }
 833
 834    pub fn regenerate_summary(&self, cx: &mut App) {
 835        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 836    }
 837
 838    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 839        self.last_error.take();
 840        self.thread.update(cx, |thread, cx| {
 841            thread.cancel_last_completion(Some(window.window_handle()), cx)
 842        })
 843    }
 844
 845    pub fn last_error(&self) -> Option<ThreadError> {
 846        self.last_error.clone()
 847    }
 848
 849    pub fn clear_last_error(&mut self) {
 850        self.last_error.take();
 851    }
 852
 853    /// Returns the editing message id and the estimated token count in the content
 854    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 855        self.editing_message
 856            .as_ref()
 857            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 858    }
 859
 860    pub fn context_store(&self) -> &Entity<ContextStore> {
 861        &self.context_store
 862    }
 863
 864    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 865        &self.thread_store
 866    }
 867
 868    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 869        &self.text_thread_store
 870    }
 871
 872    fn push_message(
 873        &mut self,
 874        id: &MessageId,
 875        segments: &[MessageSegment],
 876        _window: &mut Window,
 877        cx: &mut Context<Self>,
 878    ) {
 879        let old_len = self.messages.len();
 880        self.messages.push(*id);
 881        self.list_state.splice(old_len..old_len, 1);
 882
 883        let rendered_message =
 884            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 885        self.rendered_messages_by_id.insert(*id, rendered_message);
 886    }
 887
 888    fn edited_message(
 889        &mut self,
 890        id: &MessageId,
 891        segments: &[MessageSegment],
 892        _window: &mut Window,
 893        cx: &mut Context<Self>,
 894    ) {
 895        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 896            return;
 897        };
 898        self.list_state.splice(index..index + 1, 1);
 899        let rendered_message =
 900            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 901        self.rendered_messages_by_id.insert(*id, rendered_message);
 902    }
 903
 904    fn deleted_message(&mut self, id: &MessageId) {
 905        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 906            return;
 907        };
 908        self.messages.remove(index);
 909        self.list_state.splice(index..index + 1, 0);
 910        self.rendered_messages_by_id.remove(id);
 911    }
 912
 913    fn render_tool_use_markdown(
 914        &mut self,
 915        tool_use_id: LanguageModelToolUseId,
 916        tool_label: impl Into<SharedString>,
 917        tool_input: &str,
 918        tool_output: SharedString,
 919        cx: &mut Context<Self>,
 920    ) {
 921        let rendered = self
 922            .rendered_tool_uses
 923            .entry(tool_use_id.clone())
 924            .or_insert_with(|| RenderedToolUse {
 925                label: cx.new(|cx| {
 926                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 927                }),
 928                input: cx.new(|cx| {
 929                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 930                }),
 931                output: cx.new(|cx| {
 932                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 933                }),
 934            });
 935
 936        rendered.label.update(cx, |this, cx| {
 937            this.replace(tool_label, cx);
 938        });
 939        rendered.input.update(cx, |this, cx| {
 940            this.replace(
 941                MarkdownCodeBlock {
 942                    tag: "json",
 943                    text: tool_input,
 944                }
 945                .to_string(),
 946                cx,
 947            );
 948        });
 949        rendered.output.update(cx, |this, cx| {
 950            this.replace(tool_output, cx);
 951        });
 952    }
 953
 954    fn handle_thread_event(
 955        &mut self,
 956        _thread: &Entity<Thread>,
 957        event: &ThreadEvent,
 958        window: &mut Window,
 959        cx: &mut Context<Self>,
 960    ) {
 961        match event {
 962            ThreadEvent::CancelEditing => {
 963                if self.editing_message.is_some() {
 964                    self.cancel_editing_message(&menu::Cancel, window, cx);
 965                }
 966            }
 967            ThreadEvent::ShowError(error) => {
 968                self.last_error = Some(error.clone());
 969            }
 970            ThreadEvent::NewRequest | ThreadEvent::CompletionCanceled => {
 971                cx.notify();
 972            }
 973            ThreadEvent::StreamedCompletion
 974            | ThreadEvent::SummaryGenerated
 975            | ThreadEvent::SummaryChanged => {
 976                self.save_thread(cx);
 977            }
 978            ThreadEvent::Stopped(reason) => match reason {
 979                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 980                    let thread = self.thread.read(cx);
 981                    self.show_notification(
 982                        if thread.used_tools_since_last_user_message() {
 983                            "Finished running tools"
 984                        } else {
 985                            "New message"
 986                        },
 987                        IconName::ZedAssistant,
 988                        window,
 989                        cx,
 990                    );
 991                }
 992                _ => {}
 993            },
 994            ThreadEvent::ToolConfirmationNeeded => {
 995                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 996            }
 997            ThreadEvent::StreamedAssistantText(message_id, text) => {
 998                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 999                    rendered_message.append_text(text, cx);
1000                }
1001            }
1002            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1003                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1004                    rendered_message.append_thinking(text, cx);
1005                }
1006            }
1007            ThreadEvent::MessageAdded(message_id) => {
1008                if let Some(message_segments) = self
1009                    .thread
1010                    .read(cx)
1011                    .message(*message_id)
1012                    .map(|message| message.segments.clone())
1013                {
1014                    self.push_message(message_id, &message_segments, window, cx);
1015                }
1016
1017                self.scroll_to_bottom(cx);
1018                self.save_thread(cx);
1019                cx.notify();
1020            }
1021            ThreadEvent::MessageEdited(message_id) => {
1022                if let Some(message_segments) = self
1023                    .thread
1024                    .read(cx)
1025                    .message(*message_id)
1026                    .map(|message| message.segments.clone())
1027                {
1028                    self.edited_message(message_id, &message_segments, window, cx);
1029                }
1030
1031                self.scroll_to_bottom(cx);
1032                self.save_thread(cx);
1033                cx.notify();
1034            }
1035            ThreadEvent::MessageDeleted(message_id) => {
1036                self.deleted_message(message_id);
1037                self.save_thread(cx);
1038                cx.notify();
1039            }
1040            ThreadEvent::UsePendingTools { tool_uses } => {
1041                for tool_use in tool_uses {
1042                    self.render_tool_use_markdown(
1043                        tool_use.id.clone(),
1044                        tool_use.ui_text.clone(),
1045                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1046                        "".into(),
1047                        cx,
1048                    );
1049                }
1050            }
1051            ThreadEvent::StreamedToolUse {
1052                tool_use_id,
1053                ui_text,
1054                input,
1055            } => {
1056                self.render_tool_use_markdown(
1057                    tool_use_id.clone(),
1058                    ui_text.clone(),
1059                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1060                    "".into(),
1061                    cx,
1062                );
1063            }
1064            ThreadEvent::ToolFinished {
1065                pending_tool_use, ..
1066            } => {
1067                if let Some(tool_use) = pending_tool_use {
1068                    self.render_tool_use_markdown(
1069                        tool_use.id.clone(),
1070                        tool_use.ui_text.clone(),
1071                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1072                        self.thread
1073                            .read(cx)
1074                            .output_for_tool(&tool_use.id)
1075                            .map(|output| output.clone().into())
1076                            .unwrap_or("".into()),
1077                        cx,
1078                    );
1079                }
1080            }
1081            ThreadEvent::CheckpointChanged => cx.notify(),
1082            ThreadEvent::ReceivedTextChunk => {}
1083            ThreadEvent::InvalidToolInput {
1084                tool_use_id,
1085                ui_text,
1086                invalid_input_json,
1087            } => {
1088                self.render_tool_use_markdown(
1089                    tool_use_id.clone(),
1090                    ui_text,
1091                    invalid_input_json,
1092                    self.thread
1093                        .read(cx)
1094                        .output_for_tool(tool_use_id)
1095                        .map(|output| output.clone().into())
1096                        .unwrap_or("".into()),
1097                    cx,
1098                );
1099            }
1100            ThreadEvent::MissingToolUse {
1101                tool_use_id,
1102                ui_text,
1103            } => {
1104                self.render_tool_use_markdown(
1105                    tool_use_id.clone(),
1106                    ui_text,
1107                    "",
1108                    self.thread
1109                        .read(cx)
1110                        .output_for_tool(tool_use_id)
1111                        .map(|output| output.clone().into())
1112                        .unwrap_or("".into()),
1113                    cx,
1114                );
1115            }
1116        }
1117    }
1118
1119    fn handle_rules_loading_error(
1120        &mut self,
1121        _thread_store: Entity<ThreadStore>,
1122        error: &RulesLoadingError,
1123        cx: &mut Context<Self>,
1124    ) {
1125        self.last_error = Some(ThreadError::Message {
1126            header: "Error loading rules file".into(),
1127            message: error.message.clone(),
1128        });
1129        cx.notify();
1130    }
1131
1132    fn show_notification(
1133        &mut self,
1134        caption: impl Into<SharedString>,
1135        icon: IconName,
1136        window: &mut Window,
1137        cx: &mut Context<ActiveThread>,
1138    ) {
1139        if window.is_window_active() || !self.notifications.is_empty() {
1140            return;
1141        }
1142
1143        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1144
1145        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1146            NotifyWhenAgentWaiting::PrimaryScreen => {
1147                if let Some(primary) = cx.primary_display() {
1148                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1149                }
1150            }
1151            NotifyWhenAgentWaiting::AllScreens => {
1152                let caption = caption.into();
1153                for screen in cx.displays() {
1154                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1155                }
1156            }
1157            NotifyWhenAgentWaiting::Never => {
1158                // Don't show anything
1159            }
1160        }
1161    }
1162
1163    fn pop_up(
1164        &mut self,
1165        icon: IconName,
1166        caption: SharedString,
1167        title: SharedString,
1168        window: &mut Window,
1169        screen: Rc<dyn PlatformDisplay>,
1170        cx: &mut Context<'_, ActiveThread>,
1171    ) {
1172        let options = AgentNotification::window_options(screen, cx);
1173
1174        let project_name = self.workspace.upgrade().and_then(|workspace| {
1175            workspace
1176                .read(cx)
1177                .project()
1178                .read(cx)
1179                .visible_worktrees(cx)
1180                .next()
1181                .map(|worktree| worktree.read(cx).root_name().to_string())
1182        });
1183
1184        if let Some(screen_window) = cx
1185            .open_window(options, |_, cx| {
1186                cx.new(|_| {
1187                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1188                })
1189            })
1190            .log_err()
1191        {
1192            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1193                self.notification_subscriptions
1194                    .entry(screen_window)
1195                    .or_insert_with(Vec::new)
1196                    .push(cx.subscribe_in(&pop_up, window, {
1197                        |this, _, event, window, cx| match event {
1198                            AgentNotificationEvent::Accepted => {
1199                                let handle = window.window_handle();
1200                                cx.activate(true);
1201
1202                                let workspace_handle = this.workspace.clone();
1203
1204                                // If there are multiple Zed windows, activate the correct one.
1205                                cx.defer(move |cx| {
1206                                    handle
1207                                        .update(cx, |_view, window, _cx| {
1208                                            window.activate_window();
1209
1210                                            if let Some(workspace) = workspace_handle.upgrade() {
1211                                                workspace.update(_cx, |workspace, cx| {
1212                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1213                                                });
1214                                            }
1215                                        })
1216                                        .log_err();
1217                                });
1218
1219                                this.dismiss_notifications(cx);
1220                            }
1221                            AgentNotificationEvent::Dismissed => {
1222                                this.dismiss_notifications(cx);
1223                            }
1224                        }
1225                    }));
1226
1227                self.notifications.push(screen_window);
1228
1229                // If the user manually refocuses the original window, dismiss the popup.
1230                self.notification_subscriptions
1231                    .entry(screen_window)
1232                    .or_insert_with(Vec::new)
1233                    .push({
1234                        let pop_up_weak = pop_up.downgrade();
1235
1236                        cx.observe_window_activation(window, move |_, window, cx| {
1237                            if window.is_window_active() {
1238                                if let Some(pop_up) = pop_up_weak.upgrade() {
1239                                    pop_up.update(cx, |_, cx| {
1240                                        cx.emit(AgentNotificationEvent::Dismissed);
1241                                    });
1242                                }
1243                            }
1244                        })
1245                    });
1246            }
1247        }
1248    }
1249
1250    /// Spawns a task to save the active thread.
1251    ///
1252    /// Only one task to save the thread will be in flight at a time.
1253    fn save_thread(&mut self, cx: &mut Context<Self>) {
1254        let thread = self.thread.clone();
1255        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1256            let task = this
1257                .update(cx, |this, cx| {
1258                    this.thread_store
1259                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1260                })
1261                .ok();
1262
1263            if let Some(task) = task {
1264                task.await.log_err();
1265            }
1266        }));
1267    }
1268
1269    fn start_editing_message(
1270        &mut self,
1271        message_id: MessageId,
1272        message_segments: &[MessageSegment],
1273        message_creases: &[MessageCrease],
1274        window: &mut Window,
1275        cx: &mut Context<Self>,
1276    ) {
1277        // User message should always consist of a single text segment,
1278        // therefore we can skip returning early if it's not a text segment.
1279        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1280            return;
1281        };
1282
1283        let editor = crate::message_editor::create_editor(
1284            self.workspace.clone(),
1285            self.context_store.downgrade(),
1286            self.thread_store.downgrade(),
1287            self.text_thread_store.downgrade(),
1288            window,
1289            cx,
1290        );
1291        editor.update(cx, |editor, cx| {
1292            editor.set_text(message_text.clone(), window, cx);
1293            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1294            editor.focus_handle(cx).focus(window);
1295            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1296        });
1297        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1298            EditorEvent::BufferEdited => {
1299                this.update_editing_message_token_count(true, cx);
1300            }
1301            _ => {}
1302        });
1303
1304        let context_picker_menu_handle = PopoverMenuHandle::default();
1305        let context_strip = cx.new(|cx| {
1306            ContextStrip::new(
1307                self.context_store.clone(),
1308                self.workspace.clone(),
1309                Some(self.thread_store.downgrade()),
1310                Some(self.text_thread_store.downgrade()),
1311                context_picker_menu_handle.clone(),
1312                SuggestContextKind::File,
1313                window,
1314                cx,
1315            )
1316        });
1317
1318        let context_strip_subscription =
1319            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1320
1321        self.editing_message = Some((
1322            message_id,
1323            EditingMessageState {
1324                editor: editor.clone(),
1325                context_strip,
1326                context_picker_menu_handle,
1327                last_estimated_token_count: None,
1328                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1329                _update_token_count_task: None,
1330            },
1331        ));
1332        self.update_editing_message_token_count(false, cx);
1333        cx.notify();
1334    }
1335
1336    fn handle_context_strip_event(
1337        &mut self,
1338        _context_strip: &Entity<ContextStrip>,
1339        event: &ContextStripEvent,
1340        window: &mut Window,
1341        cx: &mut Context<Self>,
1342    ) {
1343        if let Some((_, state)) = self.editing_message.as_ref() {
1344            match event {
1345                ContextStripEvent::PickerDismissed
1346                | ContextStripEvent::BlurredEmpty
1347                | ContextStripEvent::BlurredDown => {
1348                    let editor_focus_handle = state.editor.focus_handle(cx);
1349                    window.focus(&editor_focus_handle);
1350                }
1351                ContextStripEvent::BlurredUp => {}
1352            }
1353        }
1354    }
1355
1356    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1357        let Some((message_id, state)) = self.editing_message.as_mut() else {
1358            return;
1359        };
1360
1361        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1362        state._update_token_count_task.take();
1363
1364        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1365            state.last_estimated_token_count.take();
1366            return;
1367        };
1368
1369        let editor = state.editor.clone();
1370        let thread = self.thread.clone();
1371        let message_id = *message_id;
1372
1373        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1374            if debounce {
1375                cx.background_executor()
1376                    .timer(Duration::from_millis(200))
1377                    .await;
1378            }
1379
1380            let token_count = if let Some(task) = cx
1381                .update(|cx| {
1382                    let Some(message) = thread.read(cx).message(message_id) else {
1383                        log::error!("Message that was being edited no longer exists");
1384                        return None;
1385                    };
1386                    let message_text = editor.read(cx).text(cx);
1387
1388                    if message_text.is_empty() && message.loaded_context.is_empty() {
1389                        return None;
1390                    }
1391
1392                    let mut request_message = LanguageModelRequestMessage {
1393                        role: language_model::Role::User,
1394                        content: Vec::new(),
1395                        cache: false,
1396                    };
1397
1398                    message
1399                        .loaded_context
1400                        .add_to_request_message(&mut request_message);
1401
1402                    if !message_text.is_empty() {
1403                        request_message
1404                            .content
1405                            .push(MessageContent::Text(message_text));
1406                    }
1407
1408                    let request = language_model::LanguageModelRequest {
1409                        thread_id: None,
1410                        prompt_id: None,
1411                        mode: None,
1412                        messages: vec![request_message],
1413                        tools: vec![],
1414                        tool_choice: None,
1415                        stop: vec![],
1416                        temperature: AssistantSettings::temperature_for_model(
1417                            &configured_model.model,
1418                            cx,
1419                        ),
1420                    };
1421
1422                    Some(configured_model.model.count_tokens(request, cx))
1423                })
1424                .ok()
1425                .flatten()
1426            {
1427                task.await.log_err()
1428            } else {
1429                Some(0)
1430            };
1431
1432            if let Some(token_count) = token_count {
1433                this.update(cx, |this, cx| {
1434                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1435                        return;
1436                    };
1437
1438                    state.last_estimated_token_count = Some(token_count);
1439                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1440                })
1441                .ok();
1442            };
1443        }));
1444    }
1445
1446    fn toggle_context_picker(
1447        &mut self,
1448        _: &crate::ToggleContextPicker,
1449        window: &mut Window,
1450        cx: &mut Context<Self>,
1451    ) {
1452        if let Some((_, state)) = self.editing_message.as_mut() {
1453            let handle = state.context_picker_menu_handle.clone();
1454            window.defer(cx, move |window, cx| {
1455                handle.toggle(window, cx);
1456            });
1457        }
1458    }
1459
1460    fn remove_all_context(
1461        &mut self,
1462        _: &crate::RemoveAllContext,
1463        _window: &mut Window,
1464        cx: &mut Context<Self>,
1465    ) {
1466        self.context_store.update(cx, |store, _cx| store.clear());
1467        cx.notify();
1468    }
1469
1470    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1471        if let Some((_, state)) = self.editing_message.as_mut() {
1472            if state.context_picker_menu_handle.is_deployed() {
1473                cx.propagate();
1474            } else {
1475                state.context_strip.focus_handle(cx).focus(window);
1476            }
1477        }
1478    }
1479
1480    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1481        let images = cx
1482            .read_from_clipboard()
1483            .map(|item| {
1484                item.into_entries()
1485                    .filter_map(|entry| {
1486                        if let ClipboardEntry::Image(image) = entry {
1487                            Some(image)
1488                        } else {
1489                            None
1490                        }
1491                    })
1492                    .collect::<Vec<_>>()
1493            })
1494            .unwrap_or_default();
1495
1496        if images.is_empty() {
1497            return;
1498        }
1499        cx.stop_propagation();
1500
1501        self.context_store.update(cx, |store, cx| {
1502            for image in images {
1503                store.add_image_instance(Arc::new(image), cx);
1504            }
1505        });
1506    }
1507
1508    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1509        self.editing_message.take();
1510        cx.notify();
1511    }
1512
1513    fn confirm_editing_message(
1514        &mut self,
1515        _: &menu::Confirm,
1516        window: &mut Window,
1517        cx: &mut Context<Self>,
1518    ) {
1519        let Some((message_id, state)) = self.editing_message.take() else {
1520            return;
1521        };
1522
1523        let Some(model) = self
1524            .thread
1525            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1526        else {
1527            return;
1528        };
1529
1530        if model.provider.must_accept_terms(cx) {
1531            cx.notify();
1532            return;
1533        }
1534
1535        let edited_text = state.editor.read(cx).text(cx);
1536
1537        let new_context = self
1538            .context_store
1539            .read(cx)
1540            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1541
1542        let project = self.thread.read(cx).project().clone();
1543        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1544
1545        let load_context_task =
1546            crate::context::load_context(new_context, &project, &prompt_store, cx);
1547        self._load_edited_message_context_task =
1548            Some(cx.spawn_in(window, async move |this, cx| {
1549                let context = load_context_task.await;
1550                let _ = this
1551                    .update_in(cx, |this, window, cx| {
1552                        this.thread.update(cx, |thread, cx| {
1553                            thread.edit_message(
1554                                message_id,
1555                                Role::User,
1556                                vec![MessageSegment::Text(edited_text)],
1557                                Some(context.loaded_context),
1558                                cx,
1559                            );
1560                            for message_id in this.messages_after(message_id) {
1561                                thread.delete_message(*message_id, cx);
1562                            }
1563                        });
1564
1565                        this.thread.update(cx, |thread, cx| {
1566                            thread.advance_prompt_id();
1567                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1568                        });
1569                        this._load_edited_message_context_task = None;
1570                        cx.notify();
1571                    })
1572                    .log_err();
1573            }));
1574    }
1575
1576    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1577        self.messages
1578            .iter()
1579            .position(|id| *id == message_id)
1580            .map(|index| &self.messages[index + 1..])
1581            .unwrap_or(&[])
1582    }
1583
1584    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1585        self.cancel_editing_message(&menu::Cancel, window, cx);
1586    }
1587
1588    fn handle_regenerate_click(
1589        &mut self,
1590        _: &ClickEvent,
1591        window: &mut Window,
1592        cx: &mut Context<Self>,
1593    ) {
1594        self.confirm_editing_message(&menu::Confirm, window, cx);
1595    }
1596
1597    fn handle_feedback_click(
1598        &mut self,
1599        message_id: MessageId,
1600        feedback: ThreadFeedback,
1601        window: &mut Window,
1602        cx: &mut Context<Self>,
1603    ) {
1604        let report = self.thread.update(cx, |thread, cx| {
1605            thread.report_message_feedback(message_id, feedback, cx)
1606        });
1607
1608        cx.spawn(async move |this, cx| {
1609            report.await?;
1610            this.update(cx, |_this, cx| cx.notify())
1611        })
1612        .detach_and_log_err(cx);
1613
1614        match feedback {
1615            ThreadFeedback::Positive => {
1616                self.open_feedback_editors.remove(&message_id);
1617            }
1618            ThreadFeedback::Negative => {
1619                self.handle_show_feedback_comments(message_id, window, cx);
1620            }
1621        }
1622    }
1623
1624    fn handle_show_feedback_comments(
1625        &mut self,
1626        message_id: MessageId,
1627        window: &mut Window,
1628        cx: &mut Context<Self>,
1629    ) {
1630        let buffer = cx.new(|cx| {
1631            let empty_string = String::new();
1632            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1633        });
1634
1635        let editor = cx.new(|cx| {
1636            let mut editor = Editor::new(
1637                editor::EditorMode::AutoHeight { max_lines: 4 },
1638                buffer,
1639                None,
1640                window,
1641                cx,
1642            );
1643            editor.set_placeholder_text(
1644                "What went wrong? Share your feedback so we can improve.",
1645                cx,
1646            );
1647            editor
1648        });
1649
1650        editor.read(cx).focus_handle(cx).focus(window);
1651        self.open_feedback_editors.insert(message_id, editor);
1652        cx.notify();
1653    }
1654
1655    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1656        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1657            return;
1658        };
1659
1660        let report_task = self.thread.update(cx, |thread, cx| {
1661            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1662        });
1663
1664        let comments = editor.read(cx).text(cx);
1665        if !comments.is_empty() {
1666            let thread_id = self.thread.read(cx).id().clone();
1667            let comments_value = String::from(comments.as_str());
1668
1669            let message_content = self
1670                .thread
1671                .read(cx)
1672                .message(message_id)
1673                .map(|msg| msg.to_string())
1674                .unwrap_or_default();
1675
1676            telemetry::event!(
1677                "Assistant Thread Feedback Comments",
1678                thread_id,
1679                message_id = message_id.0,
1680                message_content,
1681                comments = comments_value
1682            );
1683
1684            self.open_feedback_editors.remove(&message_id);
1685
1686            cx.spawn(async move |this, cx| {
1687                report_task.await?;
1688                this.update(cx, |_this, cx| cx.notify())
1689            })
1690            .detach_and_log_err(cx);
1691        }
1692    }
1693
1694    fn render_edit_message_editor(
1695        &self,
1696        state: &EditingMessageState,
1697        _window: &mut Window,
1698        cx: &Context<Self>,
1699    ) -> impl IntoElement {
1700        let settings = ThemeSettings::get_global(cx);
1701        let font_size = TextSize::Small
1702            .rems(cx)
1703            .to_pixels(settings.agent_font_size(cx));
1704        let line_height = font_size * 1.75;
1705
1706        let colors = cx.theme().colors();
1707
1708        let text_style = TextStyle {
1709            color: colors.text,
1710            font_family: settings.buffer_font.family.clone(),
1711            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1712            font_features: settings.buffer_font.features.clone(),
1713            font_size: font_size.into(),
1714            line_height: line_height.into(),
1715            ..Default::default()
1716        };
1717
1718        v_flex()
1719            .key_context("EditMessageEditor")
1720            .on_action(cx.listener(Self::toggle_context_picker))
1721            .on_action(cx.listener(Self::remove_all_context))
1722            .on_action(cx.listener(Self::move_up))
1723            .on_action(cx.listener(Self::cancel_editing_message))
1724            .on_action(cx.listener(Self::confirm_editing_message))
1725            .capture_action(cx.listener(Self::paste))
1726            .min_h_6()
1727            .w_full()
1728            .flex_grow()
1729            .gap_2()
1730            .child(state.context_strip.clone())
1731            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1732                &state.editor,
1733                EditorStyle {
1734                    background: colors.editor_background,
1735                    local_player: cx.theme().players().local(),
1736                    text: text_style,
1737                    syntax: cx.theme().syntax().clone(),
1738                    ..Default::default()
1739                },
1740            )))
1741    }
1742
1743    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1744        let message_id = self.messages[ix];
1745        let Some(message) = self.thread.read(cx).message(message_id) else {
1746            return Empty.into_any();
1747        };
1748        let message_creases = message.creases.clone();
1749
1750        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1751            return Empty.into_any();
1752        };
1753
1754        let workspace = self.workspace.clone();
1755        let thread = self.thread.read(cx);
1756
1757        // Get all the data we need from thread before we start using it in closures
1758        let checkpoint = thread.checkpoint_for_message(message_id);
1759        let added_context = thread
1760            .context_for_message(message_id)
1761            .map(|context| AddedContext::new_attached(context, cx))
1762            .collect::<Vec<_>>();
1763
1764        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1765        let has_tool_uses = !tool_uses.is_empty();
1766        let is_generating = thread.is_generating();
1767        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1768
1769        let is_first_message = ix == 0;
1770        let is_last_message = ix == self.messages.len() - 1;
1771
1772        let loading_dots = (is_generating_stale && is_last_message)
1773            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1774
1775        let editing_message_state = self
1776            .editing_message
1777            .as_ref()
1778            .filter(|(id, _)| *id == message_id)
1779            .map(|(_, state)| state);
1780
1781        let colors = cx.theme().colors();
1782        let editor_bg_color = colors.editor_background;
1783
1784        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1785            .icon_size(IconSize::XSmall)
1786            .icon_color(Color::Ignored)
1787            .tooltip(Tooltip::text("Open Thread as Markdown"))
1788            .on_click({
1789                let thread = self.thread.clone();
1790                let workspace = self.workspace.clone();
1791                move |_, window, cx| {
1792                    if let Some(workspace) = workspace.upgrade() {
1793                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1794                            .detach_and_log_err(cx);
1795                    }
1796                }
1797            });
1798
1799        // For all items that should be aligned with the LLM's response.
1800        const RESPONSE_PADDING_X: Pixels = px(19.);
1801
1802        let show_feedback = thread.is_turn_end(ix);
1803
1804        let feedback_container = h_flex()
1805            .group("feedback_container")
1806            .mt_1()
1807            .py_2()
1808            .px(RESPONSE_PADDING_X)
1809            .mr_1()
1810            .opacity(0.4)
1811            .hover(|style| style.opacity(1.))
1812            .gap_1p5()
1813            .flex_wrap()
1814            .justify_end();
1815        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1816            Some(feedback) => feedback_container
1817                .child(
1818                    div().visible_on_hover("feedback_container").child(
1819                        Label::new(match feedback {
1820                            ThreadFeedback::Positive => "Thanks for your feedback!",
1821                            ThreadFeedback::Negative => {
1822                                "We appreciate your feedback and will use it to improve."
1823                            }
1824                        })
1825                    .color(Color::Muted)
1826                    .size(LabelSize::XSmall)
1827                    .truncate())
1828                )
1829                .child(
1830                    h_flex()
1831                        .child(
1832                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1833                                .icon_size(IconSize::XSmall)
1834                                .icon_color(match feedback {
1835                                    ThreadFeedback::Positive => Color::Accent,
1836                                    ThreadFeedback::Negative => Color::Ignored,
1837                                })
1838                                .tooltip(Tooltip::text("Helpful Response"))
1839                                .on_click(cx.listener(move |this, _, window, cx| {
1840                                    this.handle_feedback_click(
1841                                        message_id,
1842                                        ThreadFeedback::Positive,
1843                                        window,
1844                                        cx,
1845                                    );
1846                                })),
1847                        )
1848                        .child(
1849                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1850                                .icon_size(IconSize::XSmall)
1851                                .icon_color(match feedback {
1852                                    ThreadFeedback::Positive => Color::Ignored,
1853                                    ThreadFeedback::Negative => Color::Accent,
1854                                })
1855                                .tooltip(Tooltip::text("Not Helpful"))
1856                                .on_click(cx.listener(move |this, _, window, cx| {
1857                                    this.handle_feedback_click(
1858                                        message_id,
1859                                        ThreadFeedback::Negative,
1860                                        window,
1861                                        cx,
1862                                    );
1863                                })),
1864                        )
1865                        .child(open_as_markdown),
1866                )
1867                .into_any_element(),
1868            None if AssistantSettings::get_global(cx).enable_feedback =>
1869                feedback_container
1870                .child(
1871                    div().visible_on_hover("feedback_container").child(
1872                        Label::new(
1873                            "Rating the thread sends all of your current conversation to the Zed team.",
1874                        )
1875                        .color(Color::Muted)
1876                    .size(LabelSize::XSmall)
1877                    .truncate())
1878                )
1879                .child(
1880                    h_flex()
1881                        .child(
1882                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1883                                .icon_size(IconSize::XSmall)
1884                                .icon_color(Color::Ignored)
1885                                .tooltip(Tooltip::text("Helpful Response"))
1886                                .on_click(cx.listener(move |this, _, window, cx| {
1887                                    this.handle_feedback_click(
1888                                        message_id,
1889                                        ThreadFeedback::Positive,
1890                                        window,
1891                                        cx,
1892                                    );
1893                                })),
1894                        )
1895                        .child(
1896                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1897                                .icon_size(IconSize::XSmall)
1898                                .icon_color(Color::Ignored)
1899                                .tooltip(Tooltip::text("Not Helpful"))
1900                                .on_click(cx.listener(move |this, _, window, cx| {
1901                                    this.handle_feedback_click(
1902                                        message_id,
1903                                        ThreadFeedback::Negative,
1904                                        window,
1905                                        cx,
1906                                    );
1907                                })),
1908                        )
1909                        .child(open_as_markdown),
1910                )
1911                .into_any_element(),
1912            None => feedback_container
1913                .child(h_flex().child(open_as_markdown))
1914                .into_any_element(),
1915        };
1916
1917        let message_is_empty = message.should_display_content();
1918        let has_content = !message_is_empty || !added_context.is_empty();
1919
1920        let message_content = has_content.then(|| {
1921            if let Some(state) = editing_message_state.as_ref() {
1922                self.render_edit_message_editor(state, window, cx)
1923                    .into_any_element()
1924            } else {
1925                v_flex()
1926                    .w_full()
1927                    .gap_1()
1928                    .when(!added_context.is_empty(), |parent| {
1929                        parent.child(h_flex().flex_wrap().gap_1().children(
1930                            added_context.into_iter().map(|added_context| {
1931                                let context = added_context.handle.clone();
1932                                ContextPill::added(added_context, false, false, None).on_click(
1933                                    Rc::new(cx.listener({
1934                                        let workspace = workspace.clone();
1935                                        move |_, _, window, cx| {
1936                                            if let Some(workspace) = workspace.upgrade() {
1937                                                open_context(&context, workspace, window, cx);
1938                                                cx.notify();
1939                                            }
1940                                        }
1941                                    })),
1942                                )
1943                            }),
1944                        ))
1945                    })
1946                    .when(!message_is_empty, |parent| {
1947                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1948                            message_id,
1949                            rendered_message,
1950                            has_tool_uses,
1951                            workspace.clone(),
1952                            window,
1953                            cx,
1954                        )))
1955                    })
1956                    .into_any_element()
1957            }
1958        });
1959
1960        let styled_message = match message.role {
1961            Role::User => v_flex()
1962                .id(("message-container", ix))
1963                .pt_2()
1964                .pl_2()
1965                .pr_2p5()
1966                .pb_4()
1967                .child(
1968                    v_flex()
1969                        .id(("user-message", ix))
1970                        .bg(editor_bg_color)
1971                        .rounded_lg()
1972                        .shadow_md()
1973                        .border_1()
1974                        .border_color(colors.border)
1975                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1976                        .cursor_pointer()
1977                        .child(
1978                            h_flex()
1979                                .p_2p5()
1980                                .gap_1()
1981                                .items_end()
1982                                .children(message_content)
1983                                .when_some(editing_message_state, |this, state| {
1984                                    let focus_handle = state.editor.focus_handle(cx).clone();
1985                                    this.w_full().justify_between().child(
1986                                        h_flex()
1987                                            .gap_0p5()
1988                                            .child(
1989                                                IconButton::new(
1990                                                    "cancel-edit-message",
1991                                                    IconName::Close,
1992                                                )
1993                                                .shape(ui::IconButtonShape::Square)
1994                                                .icon_color(Color::Error)
1995                                                .icon_size(IconSize::Small)
1996                                                .tooltip({
1997                                                    let focus_handle = focus_handle.clone();
1998                                                    move |window, cx| {
1999                                                        Tooltip::for_action_in(
2000                                                            "Cancel Edit",
2001                                                            &menu::Cancel,
2002                                                            &focus_handle,
2003                                                            window,
2004                                                            cx,
2005                                                        )
2006                                                    }
2007                                                })
2008                                                .on_click(cx.listener(Self::handle_cancel_click)),
2009                                            )
2010                                            .child(
2011                                                IconButton::new(
2012                                                    "confirm-edit-message",
2013                                                    IconName::Return,
2014                                                )
2015                                                .disabled(state.editor.read(cx).is_empty(cx))
2016                                                .shape(ui::IconButtonShape::Square)
2017                                                .icon_color(Color::Muted)
2018                                                .icon_size(IconSize::Small)
2019                                                .tooltip({
2020                                                    let focus_handle = focus_handle.clone();
2021                                                    move |window, cx| {
2022                                                        Tooltip::for_action_in(
2023                                                            "Regenerate",
2024                                                            &menu::Confirm,
2025                                                            &focus_handle,
2026                                                            window,
2027                                                            cx,
2028                                                        )
2029                                                    }
2030                                                })
2031                                                .on_click(
2032                                                    cx.listener(Self::handle_regenerate_click),
2033                                                ),
2034                                            ),
2035                                    )
2036                                }),
2037                        )
2038                        .on_click(cx.listener({
2039                            let message_segments = message.segments.clone();
2040                            move |this, _, window, cx| {
2041                                this.start_editing_message(
2042                                    message_id,
2043                                    &message_segments,
2044                                    &message_creases,
2045                                    window,
2046                                    cx,
2047                                );
2048                            }
2049                        })),
2050                ),
2051            Role::Assistant => v_flex()
2052                .id(("message-container", ix))
2053                .px(RESPONSE_PADDING_X)
2054                .gap_2()
2055                .children(message_content)
2056                .when(has_tool_uses, |parent| {
2057                    parent.children(tool_uses.into_iter().map(|tool_use| {
2058                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2059                    }))
2060                }),
2061            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2062                v_flex()
2063                    .bg(colors.editor_background)
2064                    .rounded_sm()
2065                    .child(div().p_4().children(message_content)),
2066            ),
2067        };
2068
2069        let after_editing_message = self
2070            .editing_message
2071            .as_ref()
2072            .map_or(false, |(editing_message_id, _)| {
2073                message_id > *editing_message_id
2074            });
2075
2076        let panel_background = cx.theme().colors().panel_background;
2077
2078        let backdrop = div()
2079            .id("backdrop")
2080            .stop_mouse_events_except_scroll()
2081            .absolute()
2082            .inset_0()
2083            .size_full()
2084            .bg(panel_background)
2085            .opacity(0.8)
2086            .on_click(cx.listener(Self::handle_cancel_click));
2087
2088        v_flex()
2089            .w_full()
2090            .map(|parent| {
2091                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2092                    let mut is_pending = false;
2093                    let mut error = None;
2094                    if let Some(last_restore_checkpoint) =
2095                        self.thread.read(cx).last_restore_checkpoint()
2096                    {
2097                        if last_restore_checkpoint.message_id() == message_id {
2098                            match last_restore_checkpoint {
2099                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2100                                LastRestoreCheckpoint::Error { error: err, .. } => {
2101                                    error = Some(err.clone());
2102                                }
2103                            }
2104                        }
2105                    }
2106
2107                    let restore_checkpoint_button =
2108                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2109                            .icon(if error.is_some() {
2110                                IconName::XCircle
2111                            } else {
2112                                IconName::Undo
2113                            })
2114                            .icon_size(IconSize::XSmall)
2115                            .icon_position(IconPosition::Start)
2116                            .icon_color(if error.is_some() {
2117                                Some(Color::Error)
2118                            } else {
2119                                None
2120                            })
2121                            .label_size(LabelSize::XSmall)
2122                            .disabled(is_pending)
2123                            .on_click(cx.listener(move |this, _, _window, cx| {
2124                                this.thread.update(cx, |thread, cx| {
2125                                    thread
2126                                        .restore_checkpoint(checkpoint.clone(), cx)
2127                                        .detach_and_log_err(cx);
2128                                });
2129                            }));
2130
2131                    let restore_checkpoint_button = if is_pending {
2132                        restore_checkpoint_button
2133                            .with_animation(
2134                                ("pulsating-restore-checkpoint-button", ix),
2135                                Animation::new(Duration::from_secs(2))
2136                                    .repeat()
2137                                    .with_easing(pulsating_between(0.6, 1.)),
2138                                |label, delta| label.alpha(delta),
2139                            )
2140                            .into_any_element()
2141                    } else if let Some(error) = error {
2142                        restore_checkpoint_button
2143                            .tooltip(Tooltip::text(error.to_string()))
2144                            .into_any_element()
2145                    } else {
2146                        restore_checkpoint_button.into_any_element()
2147                    };
2148
2149                    parent.child(
2150                        h_flex()
2151                            .pt_2p5()
2152                            .px_2p5()
2153                            .w_full()
2154                            .gap_1()
2155                            .child(ui::Divider::horizontal())
2156                            .child(restore_checkpoint_button)
2157                            .child(ui::Divider::horizontal()),
2158                    )
2159                } else {
2160                    parent
2161                }
2162            })
2163            .when(is_first_message, |parent| {
2164                parent.child(self.render_rules_item(cx))
2165            })
2166            .child(styled_message)
2167            .when(is_generating && is_last_message, |this| {
2168                this.child(
2169                    h_flex()
2170                        .h_8()
2171                        .mt_2()
2172                        .mb_4()
2173                        .ml_4()
2174                        .py_1p5()
2175                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2176                )
2177            })
2178            .when(show_feedback, move |parent| {
2179                parent.child(feedback_items).when_some(
2180                    self.open_feedback_editors.get(&message_id),
2181                    move |parent, feedback_editor| {
2182                        let focus_handle = feedback_editor.focus_handle(cx);
2183                        parent.child(
2184                            v_flex()
2185                                .key_context("AgentFeedbackMessageEditor")
2186                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2187                                    this.open_feedback_editors.remove(&message_id);
2188                                    cx.notify();
2189                                }))
2190                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2191                                    this.submit_feedback_message(message_id, cx);
2192                                    cx.notify();
2193                                }))
2194                                .on_action(cx.listener(Self::confirm_editing_message))
2195                                .mb_2()
2196                                .mx_4()
2197                                .p_2()
2198                                .rounded_md()
2199                                .border_1()
2200                                .border_color(cx.theme().colors().border)
2201                                .bg(cx.theme().colors().editor_background)
2202                                .child(feedback_editor.clone())
2203                                .child(
2204                                    h_flex()
2205                                        .gap_1()
2206                                        .justify_end()
2207                                        .child(
2208                                            Button::new("dismiss-feedback-message", "Cancel")
2209                                                .label_size(LabelSize::Small)
2210                                                .key_binding(
2211                                                    KeyBinding::for_action_in(
2212                                                        &menu::Cancel,
2213                                                        &focus_handle,
2214                                                        window,
2215                                                        cx,
2216                                                    )
2217                                                    .map(|kb| kb.size(rems_from_px(10.))),
2218                                                )
2219                                                .on_click(cx.listener(
2220                                                    move |this, _, _window, cx| {
2221                                                        this.open_feedback_editors
2222                                                            .remove(&message_id);
2223                                                        cx.notify();
2224                                                    },
2225                                                )),
2226                                        )
2227                                        .child(
2228                                            Button::new(
2229                                                "submit-feedback-message",
2230                                                "Share Feedback",
2231                                            )
2232                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2233                                            .label_size(LabelSize::Small)
2234                                            .key_binding(
2235                                                KeyBinding::for_action_in(
2236                                                    &menu::Confirm,
2237                                                    &focus_handle,
2238                                                    window,
2239                                                    cx,
2240                                                )
2241                                                .map(|kb| kb.size(rems_from_px(10.))),
2242                                            )
2243                                            .on_click(
2244                                                cx.listener(move |this, _, _window, cx| {
2245                                                    this.submit_feedback_message(message_id, cx);
2246                                                    cx.notify()
2247                                                }),
2248                                            ),
2249                                        ),
2250                                ),
2251                        )
2252                    },
2253                )
2254            })
2255            .when(after_editing_message, |parent| {
2256                // Backdrop to dim out the whole thread below the editing user message
2257                parent.relative().child(backdrop)
2258            })
2259            .into_any()
2260    }
2261
2262    fn render_message_content(
2263        &self,
2264        message_id: MessageId,
2265        rendered_message: &RenderedMessage,
2266        has_tool_uses: bool,
2267        workspace: WeakEntity<Workspace>,
2268        window: &Window,
2269        cx: &Context<Self>,
2270    ) -> impl IntoElement {
2271        let is_last_message = self.messages.last() == Some(&message_id);
2272        let is_generating = self.thread.read(cx).is_generating();
2273        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2274            rendered_message
2275                .segments
2276                .iter()
2277                .enumerate()
2278                .next_back()
2279                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2280                .map(|(index, _)| index)
2281        } else {
2282            None
2283        };
2284
2285        let message_role = self
2286            .thread
2287            .read(cx)
2288            .message(message_id)
2289            .map(|m| m.role)
2290            .unwrap_or(Role::User);
2291
2292        let is_assistant_message = message_role == Role::Assistant;
2293        let is_user_message = message_role == Role::User;
2294
2295        v_flex()
2296            .text_ui(cx)
2297            .gap_2()
2298            .when(is_user_message, |this| this.text_xs())
2299            .children(
2300                rendered_message.segments.iter().enumerate().map(
2301                    |(index, segment)| match segment {
2302                        RenderedMessageSegment::Thinking {
2303                            content,
2304                            scroll_handle,
2305                        } => self
2306                            .render_message_thinking_segment(
2307                                message_id,
2308                                index,
2309                                content.clone(),
2310                                &scroll_handle,
2311                                Some(index) == pending_thinking_segment_index,
2312                                window,
2313                                cx,
2314                            )
2315                            .into_any_element(),
2316                        RenderedMessageSegment::Text(markdown) => {
2317                            let markdown_element = MarkdownElement::new(
2318                                markdown.clone(),
2319                                if is_user_message {
2320                                    let mut style = default_markdown_style(window, cx);
2321                                    let mut text_style = window.text_style();
2322                                    let theme_settings = ThemeSettings::get_global(cx);
2323
2324                                    let buffer_font = theme_settings.buffer_font.family.clone();
2325                                    let buffer_font_size = TextSize::Small.rems(cx);
2326
2327                                    text_style.refine(&TextStyleRefinement {
2328                                        font_family: Some(buffer_font),
2329                                        font_size: Some(buffer_font_size.into()),
2330                                        ..Default::default()
2331                                    });
2332
2333                                    style.base_text_style = text_style;
2334                                    style
2335                                } else {
2336                                    default_markdown_style(window, cx)
2337                                },
2338                            );
2339
2340                            let markdown_element = if is_assistant_message {
2341                                markdown_element.code_block_renderer(
2342                                    markdown::CodeBlockRenderer::Custom {
2343                                        render: Arc::new({
2344                                            let workspace = workspace.clone();
2345                                            let active_thread = cx.entity();
2346                                            move |kind,
2347                                                  parsed_markdown,
2348                                                  range,
2349                                                  metadata,
2350                                                  window,
2351                                                  cx| {
2352                                                render_markdown_code_block(
2353                                                    message_id,
2354                                                    range.start,
2355                                                    kind,
2356                                                    parsed_markdown,
2357                                                    metadata,
2358                                                    active_thread.clone(),
2359                                                    workspace.clone(),
2360                                                    window,
2361                                                    cx,
2362                                                )
2363                                            }
2364                                        }),
2365                                        transform: Some(Arc::new({
2366                                            let active_thread = cx.entity();
2367                                            let editor_bg = cx.theme().colors().editor_background;
2368
2369                                            move |el, range, metadata, _, cx| {
2370                                                let can_expand = metadata.line_count
2371                                                    >= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK;
2372
2373                                                if !can_expand {
2374                                                    return el;
2375                                                }
2376
2377                                                let is_expanded = active_thread
2378                                                    .read(cx)
2379                                                    .is_codeblock_expanded(message_id, range.start);
2380
2381                                                if is_expanded {
2382                                                    return el;
2383                                                }
2384
2385                                                el.child(
2386                                                    div()
2387                                                        .absolute()
2388                                                        .bottom_0()
2389                                                        .left_0()
2390                                                        .w_full()
2391                                                        .h_1_4()
2392                                                        .rounded_b_lg()
2393                                                        .bg(linear_gradient(
2394                                                            0.,
2395                                                            linear_color_stop(editor_bg, 0.),
2396                                                            linear_color_stop(
2397                                                                editor_bg.opacity(0.),
2398                                                                1.,
2399                                                            ),
2400                                                        )),
2401                                                )
2402                                            }
2403                                        })),
2404                                    },
2405                                )
2406                            } else {
2407                                markdown_element.code_block_renderer(
2408                                    markdown::CodeBlockRenderer::Default {
2409                                        copy_button: false,
2410                                        copy_button_on_hover: false,
2411                                        border: true,
2412                                    },
2413                                )
2414                            };
2415
2416                            div()
2417                                .child(markdown_element.on_url_click({
2418                                    let workspace = self.workspace.clone();
2419                                    move |text, window, cx| {
2420                                        open_markdown_link(text, workspace.clone(), window, cx);
2421                                    }
2422                                }))
2423                                .into_any_element()
2424                        }
2425                    },
2426                ),
2427            )
2428    }
2429
2430    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2431        cx.theme().colors().border.opacity(0.5)
2432    }
2433
2434    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2435        cx.theme()
2436            .colors()
2437            .element_background
2438            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2439    }
2440
2441    fn render_message_thinking_segment(
2442        &self,
2443        message_id: MessageId,
2444        ix: usize,
2445        markdown: Entity<Markdown>,
2446        scroll_handle: &ScrollHandle,
2447        pending: bool,
2448        window: &Window,
2449        cx: &Context<Self>,
2450    ) -> impl IntoElement {
2451        let is_open = self
2452            .expanded_thinking_segments
2453            .get(&(message_id, ix))
2454            .copied()
2455            .unwrap_or_default();
2456
2457        let editor_bg = cx.theme().colors().panel_background;
2458
2459        div().map(|this| {
2460            if pending {
2461                this.v_flex()
2462                    .mt_neg_2()
2463                    .mb_1p5()
2464                    .child(
2465                        h_flex()
2466                            .group("disclosure-header")
2467                            .justify_between()
2468                            .child(
2469                                h_flex()
2470                                    .gap_1p5()
2471                                    .child(
2472                                        Icon::new(IconName::LightBulb)
2473                                            .size(IconSize::XSmall)
2474                                            .color(Color::Muted),
2475                                    )
2476                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2477                            )
2478                            .child(
2479                                h_flex()
2480                                    .gap_1()
2481                                    .child(
2482                                        div().visible_on_hover("disclosure-header").child(
2483                                            Disclosure::new("thinking-disclosure", is_open)
2484                                                .opened_icon(IconName::ChevronUp)
2485                                                .closed_icon(IconName::ChevronDown)
2486                                                .on_click(cx.listener({
2487                                                    move |this, _event, _window, _cx| {
2488                                                        let is_open = this
2489                                                            .expanded_thinking_segments
2490                                                            .entry((message_id, ix))
2491                                                            .or_insert(false);
2492
2493                                                        *is_open = !*is_open;
2494                                                    }
2495                                                })),
2496                                        ),
2497                                    )
2498                                    .child({
2499                                        Icon::new(IconName::ArrowCircle)
2500                                            .color(Color::Accent)
2501                                            .size(IconSize::Small)
2502                                            .with_animation(
2503                                                "arrow-circle",
2504                                                Animation::new(Duration::from_secs(2)).repeat(),
2505                                                |icon, delta| {
2506                                                    icon.transform(Transformation::rotate(
2507                                                        percentage(delta),
2508                                                    ))
2509                                                },
2510                                            )
2511                                    }),
2512                            ),
2513                    )
2514                    .when(!is_open, |this| {
2515                        let gradient_overlay = div()
2516                            .rounded_b_lg()
2517                            .h_full()
2518                            .absolute()
2519                            .w_full()
2520                            .bottom_0()
2521                            .left_0()
2522                            .bg(linear_gradient(
2523                                180.,
2524                                linear_color_stop(editor_bg, 1.),
2525                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2526                            ));
2527
2528                        this.child(
2529                            div()
2530                                .relative()
2531                                .bg(editor_bg)
2532                                .rounded_b_lg()
2533                                .mt_2()
2534                                .pl_4()
2535                                .child(
2536                                    div()
2537                                        .id(("thinking-content", ix))
2538                                        .max_h_20()
2539                                        .track_scroll(scroll_handle)
2540                                        .text_ui_sm(cx)
2541                                        .overflow_hidden()
2542                                        .child(
2543                                            MarkdownElement::new(
2544                                                markdown.clone(),
2545                                                default_markdown_style(window, cx),
2546                                            )
2547                                            .on_url_click({
2548                                                let workspace = self.workspace.clone();
2549                                                move |text, window, cx| {
2550                                                    open_markdown_link(
2551                                                        text,
2552                                                        workspace.clone(),
2553                                                        window,
2554                                                        cx,
2555                                                    );
2556                                                }
2557                                            }),
2558                                        ),
2559                                )
2560                                .child(gradient_overlay),
2561                        )
2562                    })
2563                    .when(is_open, |this| {
2564                        this.child(
2565                            div()
2566                                .id(("thinking-content", ix))
2567                                .h_full()
2568                                .bg(editor_bg)
2569                                .text_ui_sm(cx)
2570                                .child(
2571                                    MarkdownElement::new(
2572                                        markdown.clone(),
2573                                        default_markdown_style(window, cx),
2574                                    )
2575                                    .on_url_click({
2576                                        let workspace = self.workspace.clone();
2577                                        move |text, window, cx| {
2578                                            open_markdown_link(text, workspace.clone(), window, cx);
2579                                        }
2580                                    }),
2581                                ),
2582                        )
2583                    })
2584            } else {
2585                this.v_flex()
2586                    .mt_neg_2()
2587                    .child(
2588                        h_flex()
2589                            .group("disclosure-header")
2590                            .pr_1()
2591                            .justify_between()
2592                            .opacity(0.8)
2593                            .hover(|style| style.opacity(1.))
2594                            .child(
2595                                h_flex()
2596                                    .gap_1p5()
2597                                    .child(
2598                                        Icon::new(IconName::LightBulb)
2599                                            .size(IconSize::XSmall)
2600                                            .color(Color::Muted),
2601                                    )
2602                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2603                            )
2604                            .child(
2605                                div().visible_on_hover("disclosure-header").child(
2606                                    Disclosure::new("thinking-disclosure", is_open)
2607                                        .opened_icon(IconName::ChevronUp)
2608                                        .closed_icon(IconName::ChevronDown)
2609                                        .on_click(cx.listener({
2610                                            move |this, _event, _window, _cx| {
2611                                                let is_open = this
2612                                                    .expanded_thinking_segments
2613                                                    .entry((message_id, ix))
2614                                                    .or_insert(false);
2615
2616                                                *is_open = !*is_open;
2617                                            }
2618                                        })),
2619                                ),
2620                            ),
2621                    )
2622                    .child(
2623                        div()
2624                            .id(("thinking-content", ix))
2625                            .relative()
2626                            .mt_1p5()
2627                            .ml_1p5()
2628                            .pl_2p5()
2629                            .border_l_1()
2630                            .border_color(cx.theme().colors().border_variant)
2631                            .text_ui_sm(cx)
2632                            .when(is_open, |this| {
2633                                this.child(
2634                                    MarkdownElement::new(
2635                                        markdown.clone(),
2636                                        default_markdown_style(window, cx),
2637                                    )
2638                                    .on_url_click({
2639                                        let workspace = self.workspace.clone();
2640                                        move |text, window, cx| {
2641                                            open_markdown_link(text, workspace.clone(), window, cx);
2642                                        }
2643                                    }),
2644                                )
2645                            }),
2646                    )
2647            }
2648        })
2649    }
2650
2651    fn render_tool_use(
2652        &self,
2653        tool_use: ToolUse,
2654        window: &mut Window,
2655        workspace: WeakEntity<Workspace>,
2656        cx: &mut Context<Self>,
2657    ) -> impl IntoElement + use<> {
2658        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2659            return card.render(&tool_use.status, window, workspace, cx);
2660        }
2661
2662        let is_open = self
2663            .expanded_tool_uses
2664            .get(&tool_use.id)
2665            .copied()
2666            .unwrap_or_default();
2667
2668        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2669
2670        let fs = self
2671            .workspace
2672            .upgrade()
2673            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2674        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2675        let needs_confirmation_tools = tool_use.needs_confirmation;
2676
2677        let status_icons = div().child(match &tool_use.status {
2678            ToolUseStatus::NeedsConfirmation => {
2679                let icon = Icon::new(IconName::Warning)
2680                    .color(Color::Warning)
2681                    .size(IconSize::Small);
2682                icon.into_any_element()
2683            }
2684            ToolUseStatus::Pending
2685            | ToolUseStatus::InputStillStreaming
2686            | ToolUseStatus::Running => {
2687                let icon = Icon::new(IconName::ArrowCircle)
2688                    .color(Color::Accent)
2689                    .size(IconSize::Small);
2690                icon.with_animation(
2691                    "arrow-circle",
2692                    Animation::new(Duration::from_secs(2)).repeat(),
2693                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2694                )
2695                .into_any_element()
2696            }
2697            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2698            ToolUseStatus::Error(_) => {
2699                let icon = Icon::new(IconName::Close)
2700                    .color(Color::Error)
2701                    .size(IconSize::Small);
2702                icon.into_any_element()
2703            }
2704        });
2705
2706        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2707        let results_content_container = || v_flex().p_2().gap_0p5();
2708
2709        let results_content = v_flex()
2710            .gap_1()
2711            .child(
2712                results_content_container()
2713                    .child(
2714                        Label::new("Input")
2715                            .size(LabelSize::XSmall)
2716                            .color(Color::Muted)
2717                            .buffer_font(cx),
2718                    )
2719                    .child(
2720                        div()
2721                            .w_full()
2722                            .text_ui_sm(cx)
2723                            .children(rendered_tool_use.as_ref().map(|rendered| {
2724                                MarkdownElement::new(
2725                                    rendered.input.clone(),
2726                                    tool_use_markdown_style(window, cx),
2727                                )
2728                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2729                                    copy_button: false,
2730                                    copy_button_on_hover: false,
2731                                    border: false,
2732                                })
2733                                .on_url_click({
2734                                    let workspace = self.workspace.clone();
2735                                    move |text, window, cx| {
2736                                        open_markdown_link(text, workspace.clone(), window, cx);
2737                                    }
2738                                })
2739                            })),
2740                    ),
2741            )
2742            .map(|container| match tool_use.status {
2743                ToolUseStatus::Finished(_) => container.child(
2744                    results_content_container()
2745                        .border_t_1()
2746                        .border_color(self.tool_card_border_color(cx))
2747                        .child(
2748                            Label::new("Result")
2749                                .size(LabelSize::XSmall)
2750                                .color(Color::Muted)
2751                                .buffer_font(cx),
2752                        )
2753                        .child(div().w_full().text_ui_sm(cx).children(
2754                            rendered_tool_use.as_ref().map(|rendered| {
2755                                MarkdownElement::new(
2756                                    rendered.output.clone(),
2757                                    tool_use_markdown_style(window, cx),
2758                                )
2759                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2760                                    copy_button: false,
2761                                    copy_button_on_hover: false,
2762                                    border: false,
2763                                })
2764                                .on_url_click({
2765                                    let workspace = self.workspace.clone();
2766                                    move |text, window, cx| {
2767                                        open_markdown_link(text, workspace.clone(), window, cx);
2768                                    }
2769                                })
2770                                .into_any_element()
2771                            }),
2772                        )),
2773                ),
2774                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2775                    results_content_container()
2776                        .border_t_1()
2777                        .border_color(self.tool_card_border_color(cx))
2778                        .child(
2779                            h_flex()
2780                                .gap_1()
2781                                .child(
2782                                    Icon::new(IconName::ArrowCircle)
2783                                        .size(IconSize::Small)
2784                                        .color(Color::Accent)
2785                                        .with_animation(
2786                                            "arrow-circle",
2787                                            Animation::new(Duration::from_secs(2)).repeat(),
2788                                            |icon, delta| {
2789                                                icon.transform(Transformation::rotate(percentage(
2790                                                    delta,
2791                                                )))
2792                                            },
2793                                        ),
2794                                )
2795                                .child(
2796                                    Label::new("Running…")
2797                                        .size(LabelSize::XSmall)
2798                                        .color(Color::Muted)
2799                                        .buffer_font(cx),
2800                                ),
2801                        ),
2802                ),
2803                ToolUseStatus::Error(_) => container.child(
2804                    results_content_container()
2805                        .border_t_1()
2806                        .border_color(self.tool_card_border_color(cx))
2807                        .child(
2808                            Label::new("Error")
2809                                .size(LabelSize::XSmall)
2810                                .color(Color::Muted)
2811                                .buffer_font(cx),
2812                        )
2813                        .child(
2814                            div()
2815                                .text_ui_sm(cx)
2816                                .children(rendered_tool_use.as_ref().map(|rendered| {
2817                                    MarkdownElement::new(
2818                                        rendered.output.clone(),
2819                                        tool_use_markdown_style(window, cx),
2820                                    )
2821                                    .on_url_click({
2822                                        let workspace = self.workspace.clone();
2823                                        move |text, window, cx| {
2824                                            open_markdown_link(text, workspace.clone(), window, cx);
2825                                        }
2826                                    })
2827                                    .into_any_element()
2828                                })),
2829                        ),
2830                ),
2831                ToolUseStatus::Pending => container,
2832                ToolUseStatus::NeedsConfirmation => container.child(
2833                    results_content_container()
2834                        .border_t_1()
2835                        .border_color(self.tool_card_border_color(cx))
2836                        .child(
2837                            Label::new("Asking Permission")
2838                                .size(LabelSize::Small)
2839                                .color(Color::Muted)
2840                                .buffer_font(cx),
2841                        ),
2842                ),
2843            });
2844
2845        let gradient_overlay = |color: Hsla| {
2846            div()
2847                .h_full()
2848                .absolute()
2849                .w_12()
2850                .bottom_0()
2851                .map(|element| {
2852                    if is_status_finished {
2853                        element.right_6()
2854                    } else {
2855                        element.right(px(44.))
2856                    }
2857                })
2858                .bg(linear_gradient(
2859                    90.,
2860                    linear_color_stop(color, 1.),
2861                    linear_color_stop(color.opacity(0.2), 0.),
2862                ))
2863        };
2864
2865        v_flex().gap_1().mb_2().map(|element| {
2866            if !needs_confirmation_tools {
2867                element.child(
2868                    v_flex()
2869                        .child(
2870                            h_flex()
2871                                .group("disclosure-header")
2872                                .relative()
2873                                .gap_1p5()
2874                                .justify_between()
2875                                .opacity(0.8)
2876                                .hover(|style| style.opacity(1.))
2877                                .when(!is_status_finished, |this| this.pr_2())
2878                                .child(
2879                                    h_flex()
2880                                        .id("tool-label-container")
2881                                        .gap_1p5()
2882                                        .max_w_full()
2883                                        .overflow_x_scroll()
2884                                        .child(
2885                                            Icon::new(tool_use.icon)
2886                                                .size(IconSize::XSmall)
2887                                                .color(Color::Muted),
2888                                        )
2889                                        .child(
2890                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2891                                                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| {
2892                                                    open_markdown_link(text, workspace.clone(), window, cx);
2893                                                }}))
2894                                            ),
2895                                        ),
2896                                )
2897                                .child(
2898                                    h_flex()
2899                                        .gap_1()
2900                                        .child(
2901                                            div().visible_on_hover("disclosure-header").child(
2902                                                Disclosure::new("tool-use-disclosure", is_open)
2903                                                    .opened_icon(IconName::ChevronUp)
2904                                                    .closed_icon(IconName::ChevronDown)
2905                                                    .on_click(cx.listener({
2906                                                        let tool_use_id = tool_use.id.clone();
2907                                                        move |this, _event, _window, _cx| {
2908                                                            let is_open = this
2909                                                                .expanded_tool_uses
2910                                                                .entry(tool_use_id.clone())
2911                                                                .or_insert(false);
2912
2913                                                            *is_open = !*is_open;
2914                                                        }
2915                                                    })),
2916                                            ),
2917                                        )
2918                                        .child(status_icons),
2919                                )
2920                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2921                        )
2922                        .map(|parent| {
2923                            if !is_open {
2924                                return parent;
2925                            }
2926
2927                            parent.child(
2928                                v_flex()
2929                                    .mt_1()
2930                                    .border_1()
2931                                    .border_color(self.tool_card_border_color(cx))
2932                                    .bg(cx.theme().colors().editor_background)
2933                                    .rounded_lg()
2934                                    .child(results_content),
2935                            )
2936                        }),
2937                )
2938            } else {
2939                v_flex()
2940                    .mb_2()
2941                    .rounded_lg()
2942                    .border_1()
2943                    .border_color(self.tool_card_border_color(cx))
2944                    .overflow_hidden()
2945                    .child(
2946                        h_flex()
2947                            .group("disclosure-header")
2948                            .relative()
2949                            .justify_between()
2950                            .py_1()
2951                            .map(|element| {
2952                                if is_status_finished {
2953                                    element.pl_2().pr_0p5()
2954                                } else {
2955                                    element.px_2()
2956                                }
2957                            })
2958                            .bg(self.tool_card_header_bg(cx))
2959                            .map(|element| {
2960                                if is_open {
2961                                    element.border_b_1().rounded_t_md()
2962                                } else if needs_confirmation {
2963                                    element.rounded_t_md()
2964                                } else {
2965                                    element.rounded_md()
2966                                }
2967                            })
2968                            .border_color(self.tool_card_border_color(cx))
2969                            .child(
2970                                h_flex()
2971                                    .id("tool-label-container")
2972                                    .gap_1p5()
2973                                    .max_w_full()
2974                                    .overflow_x_scroll()
2975                                    .child(
2976                                        Icon::new(tool_use.icon)
2977                                            .size(IconSize::XSmall)
2978                                            .color(Color::Muted),
2979                                    )
2980                                    .child(
2981                                        h_flex().pr_8().text_ui_sm(cx).children(
2982                                            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| {
2983                                                open_markdown_link(text, workspace.clone(), window, cx);
2984                                            }}))
2985                                        ),
2986                                    ),
2987                            )
2988                            .child(
2989                                h_flex()
2990                                    .gap_1()
2991                                    .child(
2992                                        div().visible_on_hover("disclosure-header").child(
2993                                            Disclosure::new("tool-use-disclosure", is_open)
2994                                                .opened_icon(IconName::ChevronUp)
2995                                                .closed_icon(IconName::ChevronDown)
2996                                                .on_click(cx.listener({
2997                                                    let tool_use_id = tool_use.id.clone();
2998                                                    move |this, _event, _window, _cx| {
2999                                                        let is_open = this
3000                                                            .expanded_tool_uses
3001                                                            .entry(tool_use_id.clone())
3002                                                            .or_insert(false);
3003
3004                                                        *is_open = !*is_open;
3005                                                    }
3006                                                })),
3007                                        ),
3008                                    )
3009                                    .child(status_icons),
3010                            )
3011                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3012                    )
3013                    .map(|parent| {
3014                        if !is_open {
3015                            return parent;
3016                        }
3017
3018                        parent.child(
3019                            v_flex()
3020                                .bg(cx.theme().colors().editor_background)
3021                                .map(|element| {
3022                                    if  needs_confirmation {
3023                                        element.rounded_none()
3024                                    } else {
3025                                        element.rounded_b_lg()
3026                                    }
3027                                })
3028                                .child(results_content),
3029                        )
3030                    })
3031                    .when(needs_confirmation, |this| {
3032                        this.child(
3033                            h_flex()
3034                                .py_1()
3035                                .pl_2()
3036                                .pr_1()
3037                                .gap_1()
3038                                .justify_between()
3039                                .bg(cx.theme().colors().editor_background)
3040                                .border_t_1()
3041                                .border_color(self.tool_card_border_color(cx))
3042                                .rounded_b_lg()
3043                                .child(
3044                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3045                                )
3046                                .child(
3047                                    h_flex()
3048                                        .gap_0p5()
3049                                        .child({
3050                                            let tool_id = tool_use.id.clone();
3051                                            Button::new(
3052                                                "always-allow-tool-action",
3053                                                "Always Allow",
3054                                            )
3055                                            .label_size(LabelSize::Small)
3056                                            .icon(IconName::CheckDouble)
3057                                            .icon_position(IconPosition::Start)
3058                                            .icon_size(IconSize::Small)
3059                                            .icon_color(Color::Success)
3060                                            .tooltip(move |window, cx|  {
3061                                                Tooltip::with_meta(
3062                                                    "Never ask for permission",
3063                                                    None,
3064                                                    "Restore the original behavior in your Agent Panel settings",
3065                                                    window,
3066                                                    cx,
3067                                                )
3068                                            })
3069                                            .on_click(cx.listener(
3070                                                move |this, event, window, cx| {
3071                                                    if let Some(fs) = fs.clone() {
3072                                                        update_settings_file::<AssistantSettings>(
3073                                                            fs.clone(),
3074                                                            cx,
3075                                                            |settings, _| {
3076                                                                settings.set_always_allow_tool_actions(true);
3077                                                            },
3078                                                        );
3079                                                    }
3080                                                    this.handle_allow_tool(
3081                                                        tool_id.clone(),
3082                                                        event,
3083                                                        window,
3084                                                        cx,
3085                                                    )
3086                                                },
3087                                            ))
3088                                        })
3089                                        .child(ui::Divider::vertical())
3090                                        .child({
3091                                            let tool_id = tool_use.id.clone();
3092                                            Button::new("allow-tool-action", "Allow")
3093                                                .label_size(LabelSize::Small)
3094                                                .icon(IconName::Check)
3095                                                .icon_position(IconPosition::Start)
3096                                                .icon_size(IconSize::Small)
3097                                                .icon_color(Color::Success)
3098                                                .on_click(cx.listener(
3099                                                    move |this, event, window, cx| {
3100                                                        this.handle_allow_tool(
3101                                                            tool_id.clone(),
3102                                                            event,
3103                                                            window,
3104                                                            cx,
3105                                                        )
3106                                                    },
3107                                                ))
3108                                        })
3109                                        .child({
3110                                            let tool_id = tool_use.id.clone();
3111                                            let tool_name: Arc<str> = tool_use.name.into();
3112                                            Button::new("deny-tool", "Deny")
3113                                                .label_size(LabelSize::Small)
3114                                                .icon(IconName::Close)
3115                                                .icon_position(IconPosition::Start)
3116                                                .icon_size(IconSize::Small)
3117                                                .icon_color(Color::Error)
3118                                                .on_click(cx.listener(
3119                                                    move |this, event, window, cx| {
3120                                                        this.handle_deny_tool(
3121                                                            tool_id.clone(),
3122                                                            tool_name.clone(),
3123                                                            event,
3124                                                            window,
3125                                                            cx,
3126                                                        )
3127                                                    },
3128                                                ))
3129                                        }),
3130                                ),
3131                        )
3132                    })
3133            }
3134        }).into_any_element()
3135    }
3136
3137    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3138        let project_context = self.thread.read(cx).project_context();
3139        let project_context = project_context.borrow();
3140        let Some(project_context) = project_context.as_ref() else {
3141            return div().into_any();
3142        };
3143
3144        let user_rules_text = if project_context.user_rules.is_empty() {
3145            None
3146        } else if project_context.user_rules.len() == 1 {
3147            let user_rules = &project_context.user_rules[0];
3148
3149            match user_rules.title.as_ref() {
3150                Some(title) => Some(format!("Using \"{title}\" user rule")),
3151                None => Some("Using user rule".into()),
3152            }
3153        } else {
3154            Some(format!(
3155                "Using {} user rules",
3156                project_context.user_rules.len()
3157            ))
3158        };
3159
3160        let first_user_rules_id = project_context
3161            .user_rules
3162            .first()
3163            .map(|user_rules| user_rules.uuid.0);
3164
3165        let rules_files = project_context
3166            .worktrees
3167            .iter()
3168            .filter_map(|worktree| worktree.rules_file.as_ref())
3169            .collect::<Vec<_>>();
3170
3171        let rules_file_text = match rules_files.as_slice() {
3172            &[] => None,
3173            &[rules_file] => Some(format!(
3174                "Using project {:?} file",
3175                rules_file.path_in_worktree
3176            )),
3177            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3178        };
3179
3180        if user_rules_text.is_none() && rules_file_text.is_none() {
3181            return div().into_any();
3182        }
3183
3184        v_flex()
3185            .pt_2()
3186            .px_2p5()
3187            .gap_1()
3188            .when_some(user_rules_text, |parent, user_rules_text| {
3189                parent.child(
3190                    h_flex()
3191                        .w_full()
3192                        .child(
3193                            Icon::new(RULES_ICON)
3194                                .size(IconSize::XSmall)
3195                                .color(Color::Disabled),
3196                        )
3197                        .child(
3198                            Label::new(user_rules_text)
3199                                .size(LabelSize::XSmall)
3200                                .color(Color::Muted)
3201                                .truncate()
3202                                .buffer_font(cx)
3203                                .ml_1p5()
3204                                .mr_0p5(),
3205                        )
3206                        .child(
3207                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3208                                .shape(ui::IconButtonShape::Square)
3209                                .icon_size(IconSize::XSmall)
3210                                .icon_color(Color::Ignored)
3211                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3212                                .tooltip(Tooltip::text("View User Rules"))
3213                                .on_click(move |_event, window, cx| {
3214                                    window.dispatch_action(
3215                                        Box::new(OpenRulesLibrary {
3216                                            prompt_to_select: first_user_rules_id,
3217                                        }),
3218                                        cx,
3219                                    )
3220                                }),
3221                        ),
3222                )
3223            })
3224            .when_some(rules_file_text, |parent, rules_file_text| {
3225                parent.child(
3226                    h_flex()
3227                        .w_full()
3228                        .child(
3229                            Icon::new(IconName::File)
3230                                .size(IconSize::XSmall)
3231                                .color(Color::Disabled),
3232                        )
3233                        .child(
3234                            Label::new(rules_file_text)
3235                                .size(LabelSize::XSmall)
3236                                .color(Color::Muted)
3237                                .buffer_font(cx)
3238                                .ml_1p5()
3239                                .mr_0p5(),
3240                        )
3241                        .child(
3242                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3243                                .shape(ui::IconButtonShape::Square)
3244                                .icon_size(IconSize::XSmall)
3245                                .icon_color(Color::Ignored)
3246                                .on_click(cx.listener(Self::handle_open_rules))
3247                                .tooltip(Tooltip::text("View Rules")),
3248                        ),
3249                )
3250            })
3251            .into_any()
3252    }
3253
3254    fn handle_allow_tool(
3255        &mut self,
3256        tool_use_id: LanguageModelToolUseId,
3257        _: &ClickEvent,
3258        window: &mut Window,
3259        cx: &mut Context<Self>,
3260    ) {
3261        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3262            .thread
3263            .read(cx)
3264            .pending_tool(&tool_use_id)
3265            .map(|tool_use| tool_use.status.clone())
3266        {
3267            self.thread.update(cx, |thread, cx| {
3268                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3269                    thread.run_tool(
3270                        c.tool_use_id.clone(),
3271                        c.ui_text.clone(),
3272                        c.input.clone(),
3273                        c.request.clone(),
3274                        c.tool.clone(),
3275                        configured.model,
3276                        Some(window.window_handle()),
3277                        cx,
3278                    );
3279                }
3280            });
3281        }
3282    }
3283
3284    fn handle_deny_tool(
3285        &mut self,
3286        tool_use_id: LanguageModelToolUseId,
3287        tool_name: Arc<str>,
3288        _: &ClickEvent,
3289        window: &mut Window,
3290        cx: &mut Context<Self>,
3291    ) {
3292        let window_handle = window.window_handle();
3293        self.thread.update(cx, |thread, cx| {
3294            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3295        });
3296    }
3297
3298    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3299        let project_context = self.thread.read(cx).project_context();
3300        let project_context = project_context.borrow();
3301        let Some(project_context) = project_context.as_ref() else {
3302            return;
3303        };
3304
3305        let project_entry_ids = project_context
3306            .worktrees
3307            .iter()
3308            .flat_map(|worktree| worktree.rules_file.as_ref())
3309            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3310            .collect::<Vec<_>>();
3311
3312        self.workspace
3313            .update(cx, move |workspace, cx| {
3314                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3315                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3316                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3317                let project = workspace.project().read(cx);
3318                let project_paths = project_entry_ids
3319                    .into_iter()
3320                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3321                    .collect::<Vec<_>>();
3322                for project_path in project_paths {
3323                    workspace
3324                        .open_path(project_path, None, true, window, cx)
3325                        .detach_and_log_err(cx);
3326                }
3327            })
3328            .ok();
3329    }
3330
3331    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3332        for window in self.notifications.drain(..) {
3333            window
3334                .update(cx, |_, window, _| {
3335                    window.remove_window();
3336                })
3337                .ok();
3338
3339            self.notification_subscriptions.remove(&window);
3340        }
3341    }
3342
3343    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3344        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3345            return None;
3346        }
3347
3348        Some(
3349            div()
3350                .occlude()
3351                .id("active-thread-scrollbar")
3352                .on_mouse_move(cx.listener(|_, _, _, cx| {
3353                    cx.notify();
3354                    cx.stop_propagation()
3355                }))
3356                .on_hover(|_, _, cx| {
3357                    cx.stop_propagation();
3358                })
3359                .on_any_mouse_down(|_, _, cx| {
3360                    cx.stop_propagation();
3361                })
3362                .on_mouse_up(
3363                    MouseButton::Left,
3364                    cx.listener(|_, _, _, cx| {
3365                        cx.stop_propagation();
3366                    }),
3367                )
3368                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3369                    cx.notify();
3370                }))
3371                .h_full()
3372                .absolute()
3373                .right_1()
3374                .top_1()
3375                .bottom_0()
3376                .w(px(12.))
3377                .cursor_default()
3378                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3379        )
3380    }
3381
3382    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3383        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3384        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3385            cx.background_executor()
3386                .timer(SCROLLBAR_SHOW_INTERVAL)
3387                .await;
3388            thread
3389                .update(cx, |thread, cx| {
3390                    if !thread.scrollbar_state.is_dragging() {
3391                        thread.show_scrollbar = false;
3392                        cx.notify();
3393                    }
3394                })
3395                .log_err();
3396        }))
3397    }
3398
3399    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3400        self.expanded_code_blocks
3401            .get(&(message_id, ix))
3402            .copied()
3403            .unwrap_or(true)
3404    }
3405
3406    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3407        let is_expanded = self
3408            .expanded_code_blocks
3409            .entry((message_id, ix))
3410            .or_insert(true);
3411        *is_expanded = !*is_expanded;
3412    }
3413
3414    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3415        self.list_state.reset(self.messages.len());
3416        cx.notify();
3417    }
3418}
3419
3420pub enum ActiveThreadEvent {
3421    EditingMessageTokenCountChanged,
3422}
3423
3424impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3425
3426impl Render for ActiveThread {
3427    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3428        v_flex()
3429            .size_full()
3430            .relative()
3431            .bg(cx.theme().colors().panel_background)
3432            .on_mouse_move(cx.listener(|this, _, _, cx| {
3433                this.show_scrollbar = true;
3434                this.hide_scrollbar_later(cx);
3435                cx.notify();
3436            }))
3437            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3438                this.show_scrollbar = true;
3439                this.hide_scrollbar_later(cx);
3440                cx.notify();
3441            }))
3442            .on_mouse_up(
3443                MouseButton::Left,
3444                cx.listener(|this, _, _, cx| {
3445                    this.hide_scrollbar_later(cx);
3446                }),
3447            )
3448            .child(list(self.list_state.clone()).flex_grow())
3449            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3450                this.child(scrollbar)
3451            })
3452    }
3453}
3454
3455pub(crate) fn open_active_thread_as_markdown(
3456    thread: Entity<Thread>,
3457    workspace: Entity<Workspace>,
3458    window: &mut Window,
3459    cx: &mut App,
3460) -> Task<anyhow::Result<()>> {
3461    let markdown_language_task = workspace
3462        .read(cx)
3463        .app_state()
3464        .languages
3465        .language_for_name("Markdown");
3466
3467    window.spawn(cx, async move |cx| {
3468        let markdown_language = markdown_language_task.await?;
3469
3470        workspace.update_in(cx, |workspace, window, cx| {
3471            let thread = thread.read(cx);
3472            let markdown = thread.to_markdown(cx)?;
3473            let thread_summary = thread.summary().or_default().to_string();
3474
3475            let project = workspace.project().clone();
3476
3477            if !project.read(cx).is_local() {
3478                anyhow::bail!("failed to open active thread as markdown in remote project");
3479            }
3480
3481            let buffer = project.update(cx, |project, cx| {
3482                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3483            });
3484            let buffer =
3485                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3486
3487            workspace.add_item_to_active_pane(
3488                Box::new(cx.new(|cx| {
3489                    let mut editor =
3490                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3491                    editor.set_breadcrumb_header(thread_summary);
3492                    editor
3493                })),
3494                None,
3495                true,
3496                window,
3497                cx,
3498            );
3499
3500            anyhow::Ok(())
3501        })??;
3502        anyhow::Ok(())
3503    })
3504}
3505
3506pub(crate) fn open_context(
3507    context: &AgentContextHandle,
3508    workspace: Entity<Workspace>,
3509    window: &mut Window,
3510    cx: &mut App,
3511) {
3512    match context {
3513        AgentContextHandle::File(file_context) => {
3514            if let Some(project_path) = file_context.project_path(cx) {
3515                workspace.update(cx, |workspace, cx| {
3516                    workspace
3517                        .open_path(project_path, None, true, window, cx)
3518                        .detach_and_log_err(cx);
3519                });
3520            }
3521        }
3522
3523        AgentContextHandle::Directory(directory_context) => {
3524            let entry_id = directory_context.entry_id;
3525            workspace.update(cx, |workspace, cx| {
3526                workspace.project().update(cx, |_project, cx| {
3527                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3528                })
3529            })
3530        }
3531
3532        AgentContextHandle::Symbol(symbol_context) => {
3533            let buffer = symbol_context.buffer.read(cx);
3534            if let Some(project_path) = buffer.project_path(cx) {
3535                let snapshot = buffer.snapshot();
3536                let target_position = symbol_context.range.start.to_point(&snapshot);
3537                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3538                    .detach();
3539            }
3540        }
3541
3542        AgentContextHandle::Selection(selection_context) => {
3543            let buffer = selection_context.buffer.read(cx);
3544            if let Some(project_path) = buffer.project_path(cx) {
3545                let snapshot = buffer.snapshot();
3546                let target_position = selection_context.range.start.to_point(&snapshot);
3547
3548                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3549                    .detach();
3550            }
3551        }
3552
3553        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3554            cx.open_url(&fetched_url_context.url);
3555        }
3556
3557        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3558            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3559                panel.update(cx, |panel, cx| {
3560                    panel.open_thread(thread_context.thread.clone(), window, cx);
3561                });
3562            }
3563        }),
3564
3565        AgentContextHandle::TextThread(text_thread_context) => {
3566            workspace.update(cx, |workspace, cx| {
3567                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3568                    panel.update(cx, |panel, cx| {
3569                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3570                    });
3571                }
3572            })
3573        }
3574
3575        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3576            Box::new(OpenRulesLibrary {
3577                prompt_to_select: Some(rules_context.prompt_id.0),
3578            }),
3579            cx,
3580        ),
3581
3582        AgentContextHandle::Image(_) => {}
3583    }
3584}
3585
3586fn open_editor_at_position(
3587    project_path: project::ProjectPath,
3588    target_position: Point,
3589    workspace: &Entity<Workspace>,
3590    window: &mut Window,
3591    cx: &mut App,
3592) -> Task<()> {
3593    let open_task = workspace.update(cx, |workspace, cx| {
3594        workspace.open_path(project_path, None, true, window, cx)
3595    });
3596    window.spawn(cx, async move |cx| {
3597        if let Some(active_editor) = open_task
3598            .await
3599            .log_err()
3600            .and_then(|item| item.downcast::<Editor>())
3601        {
3602            active_editor
3603                .downgrade()
3604                .update_in(cx, |editor, window, cx| {
3605                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3606                })
3607                .log_err();
3608        }
3609    })
3610}