active_thread.rs

   1use crate::context::{AgentContextHandle, RULES_ICON};
   2use crate::context_picker::MentionLink;
   3use crate::thread::{
   4    LastRestoreCheckpoint, MessageId, MessageSegment, Thread, ThreadError, ThreadEvent,
   5    ThreadFeedback,
   6};
   7use crate::thread_store::{RulesLoadingError, ThreadStore};
   8use crate::tool_use::{PendingToolUseStatus, ToolUse};
   9use crate::ui::{
  10    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  11};
  12use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  13use anyhow::Context as _;
  14use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  15use assistant_tool::ToolUseStatus;
  16use collections::{HashMap, HashSet};
  17use editor::scroll::Autoscroll;
  18use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  19use gpui::{
  20    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardItem,
  21    DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla, ListAlignment,
  22    ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful, StyleRefinement, Subscription,
  23    Task, TextStyle, TextStyleRefinement, Transformation, UnderlineStyle, WeakEntity, WindowHandle,
  24    linear_color_stop, linear_gradient, list, percentage, pulsating_between,
  25};
  26use language::{Buffer, LanguageRegistry};
  27use language_model::{
  28    LanguageModelRegistry, LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent,
  29    RequestUsage, Role, StopReason,
  30};
  31use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  32use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  33use project::{ProjectEntryId, ProjectItem as _};
  34use rope::Point;
  35use settings::{Settings as _, update_settings_file};
  36use std::path::Path;
  37use std::rc::Rc;
  38use std::sync::Arc;
  39use std::time::Duration;
  40use text::ToPoint;
  41use theme::ThemeSettings;
  42use ui::{
  43    Disclosure, IconButton, KeyBinding, Scrollbar, ScrollbarState, TextSize, Tooltip, prelude::*,
  44};
  45use util::ResultExt as _;
  46use util::markdown::MarkdownCodeBlock;
  47use workspace::Workspace;
  48use zed_actions::assistant::OpenRulesLibrary;
  49
  50pub struct ActiveThread {
  51    language_registry: Arc<LanguageRegistry>,
  52    thread_store: Entity<ThreadStore>,
  53    thread: Entity<Thread>,
  54    workspace: WeakEntity<Workspace>,
  55    save_thread_task: Option<Task<()>>,
  56    messages: Vec<MessageId>,
  57    list_state: ListState,
  58    scrollbar_state: ScrollbarState,
  59    show_scrollbar: bool,
  60    hide_scrollbar_task: Option<Task<()>>,
  61    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  62    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  63    editing_message: Option<(MessageId, EditMessageState)>,
  64    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  65    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  66    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  67    last_error: Option<ThreadError>,
  68    last_usage: Option<RequestUsage>,
  69    notifications: Vec<WindowHandle<AgentNotification>>,
  70    copied_code_block_ids: HashSet<(MessageId, usize)>,
  71    _subscriptions: Vec<Subscription>,
  72    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  73    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  74}
  75
  76struct RenderedMessage {
  77    language_registry: Arc<LanguageRegistry>,
  78    segments: Vec<RenderedMessageSegment>,
  79}
  80
  81#[derive(Clone)]
  82struct RenderedToolUse {
  83    label: Entity<Markdown>,
  84    input: Entity<Markdown>,
  85    output: Entity<Markdown>,
  86}
  87
  88impl RenderedMessage {
  89    fn from_segments(
  90        segments: &[MessageSegment],
  91        language_registry: Arc<LanguageRegistry>,
  92        cx: &mut App,
  93    ) -> Self {
  94        let mut this = Self {
  95            language_registry,
  96            segments: Vec::with_capacity(segments.len()),
  97        };
  98        for segment in segments {
  99            this.push_segment(segment, cx);
 100        }
 101        this
 102    }
 103
 104    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 105        if let Some(RenderedMessageSegment::Thinking {
 106            content,
 107            scroll_handle,
 108        }) = self.segments.last_mut()
 109        {
 110            content.update(cx, |markdown, cx| {
 111                markdown.append(text, cx);
 112            });
 113            scroll_handle.scroll_to_bottom();
 114        } else {
 115            self.segments.push(RenderedMessageSegment::Thinking {
 116                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 117                scroll_handle: ScrollHandle::default(),
 118            });
 119        }
 120    }
 121
 122    fn append_text(&mut self, text: &String, cx: &mut App) {
 123        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 124            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 125        } else {
 126            self.segments
 127                .push(RenderedMessageSegment::Text(parse_markdown(
 128                    SharedString::from(text),
 129                    self.language_registry.clone(),
 130                    cx,
 131                )));
 132        }
 133    }
 134
 135    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 136        match segment {
 137            MessageSegment::Thinking { text, .. } => {
 138                self.segments.push(RenderedMessageSegment::Thinking {
 139                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 140                    scroll_handle: ScrollHandle::default(),
 141                })
 142            }
 143            MessageSegment::Text(text) => {
 144                self.segments
 145                    .push(RenderedMessageSegment::Text(parse_markdown(
 146                        text.into(),
 147                        self.language_registry.clone(),
 148                        cx,
 149                    )))
 150            }
 151            MessageSegment::RedactedThinking(_) => {}
 152        };
 153    }
 154}
 155
 156enum RenderedMessageSegment {
 157    Thinking {
 158        content: Entity<Markdown>,
 159        scroll_handle: ScrollHandle,
 160    },
 161    Text(Entity<Markdown>),
 162}
 163
 164fn parse_markdown(
 165    text: SharedString,
 166    language_registry: Arc<LanguageRegistry>,
 167    cx: &mut App,
 168) -> Entity<Markdown> {
 169    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 170}
 171
 172fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 173    let theme_settings = ThemeSettings::get_global(cx);
 174    let colors = cx.theme().colors();
 175    let ui_font_size = TextSize::Default.rems(cx);
 176    let buffer_font_size = TextSize::Small.rems(cx);
 177    let mut text_style = window.text_style();
 178
 179    text_style.refine(&TextStyleRefinement {
 180        font_family: Some(theme_settings.ui_font.family.clone()),
 181        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 182        font_features: Some(theme_settings.ui_font.features.clone()),
 183        font_size: Some(ui_font_size.into()),
 184        color: Some(cx.theme().colors().text),
 185        ..Default::default()
 186    });
 187
 188    MarkdownStyle {
 189        base_text_style: text_style.clone(),
 190        syntax: cx.theme().syntax().clone(),
 191        selection_background_color: cx.theme().players().local().selection,
 192        code_block_overflow_x_scroll: true,
 193        table_overflow_x_scroll: true,
 194        heading_level_styles: Some(HeadingLevelStyles {
 195            h1: Some(TextStyleRefinement {
 196                font_size: Some(rems(1.15).into()),
 197                ..Default::default()
 198            }),
 199            h2: Some(TextStyleRefinement {
 200                font_size: Some(rems(1.1).into()),
 201                ..Default::default()
 202            }),
 203            h3: Some(TextStyleRefinement {
 204                font_size: Some(rems(1.05).into()),
 205                ..Default::default()
 206            }),
 207            h4: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.).into()),
 209                ..Default::default()
 210            }),
 211            h5: Some(TextStyleRefinement {
 212                font_size: Some(rems(0.95).into()),
 213                ..Default::default()
 214            }),
 215            h6: Some(TextStyleRefinement {
 216                font_size: Some(rems(0.875).into()),
 217                ..Default::default()
 218            }),
 219        }),
 220        code_block: StyleRefinement {
 221            padding: EdgesRefinement {
 222                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 223                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 224                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 225                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 226            },
 227            background: Some(colors.editor_background.into()),
 228            text: Some(TextStyleRefinement {
 229                font_family: Some(theme_settings.buffer_font.family.clone()),
 230                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 231                font_features: Some(theme_settings.buffer_font.features.clone()),
 232                font_size: Some(buffer_font_size.into()),
 233                ..Default::default()
 234            }),
 235            ..Default::default()
 236        },
 237        inline_code: TextStyleRefinement {
 238            font_family: Some(theme_settings.buffer_font.family.clone()),
 239            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 240            font_features: Some(theme_settings.buffer_font.features.clone()),
 241            font_size: Some(buffer_font_size.into()),
 242            background_color: Some(colors.editor_foreground.opacity(0.08)),
 243            ..Default::default()
 244        },
 245        link: TextStyleRefinement {
 246            background_color: Some(colors.editor_foreground.opacity(0.025)),
 247            underline: Some(UnderlineStyle {
 248                color: Some(colors.text_accent.opacity(0.5)),
 249                thickness: px(1.),
 250                ..Default::default()
 251            }),
 252            ..Default::default()
 253        },
 254        link_callback: Some(Rc::new(move |url, cx| {
 255            if MentionLink::is_valid(url) {
 256                let colors = cx.theme().colors();
 257                Some(TextStyleRefinement {
 258                    background_color: Some(colors.element_background),
 259                    ..Default::default()
 260                })
 261            } else {
 262                None
 263            }
 264        })),
 265        ..Default::default()
 266    }
 267}
 268
 269fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 270    let theme_settings = ThemeSettings::get_global(cx);
 271    let colors = cx.theme().colors();
 272    let ui_font_size = TextSize::Default.rems(cx);
 273    let buffer_font_size = TextSize::Small.rems(cx);
 274    let mut text_style = window.text_style();
 275
 276    text_style.refine(&TextStyleRefinement {
 277        font_family: Some(theme_settings.ui_font.family.clone()),
 278        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 279        font_features: Some(theme_settings.ui_font.features.clone()),
 280        font_size: Some(ui_font_size.into()),
 281        color: Some(cx.theme().colors().text),
 282        ..Default::default()
 283    });
 284
 285    MarkdownStyle {
 286        base_text_style: text_style,
 287        syntax: cx.theme().syntax().clone(),
 288        selection_background_color: cx.theme().players().local().selection,
 289        code_block_overflow_x_scroll: true,
 290        code_block: StyleRefinement {
 291            margin: EdgesRefinement::default(),
 292            padding: EdgesRefinement::default(),
 293            background: Some(colors.editor_background.into()),
 294            border_color: None,
 295            border_widths: EdgesRefinement::default(),
 296            text: Some(TextStyleRefinement {
 297                font_family: Some(theme_settings.buffer_font.family.clone()),
 298                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 299                font_features: Some(theme_settings.buffer_font.features.clone()),
 300                font_size: Some(buffer_font_size.into()),
 301                ..Default::default()
 302            }),
 303            ..Default::default()
 304        },
 305        inline_code: TextStyleRefinement {
 306            font_family: Some(theme_settings.buffer_font.family.clone()),
 307            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 308            font_features: Some(theme_settings.buffer_font.features.clone()),
 309            font_size: Some(TextSize::XSmall.rems(cx).into()),
 310            ..Default::default()
 311        },
 312        heading: StyleRefinement {
 313            text: Some(TextStyleRefinement {
 314                font_size: Some(ui_font_size.into()),
 315                ..Default::default()
 316            }),
 317            ..Default::default()
 318        },
 319        ..Default::default()
 320    }
 321}
 322
 323const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 324
 325fn render_markdown_code_block(
 326    message_id: MessageId,
 327    ix: usize,
 328    kind: &CodeBlockKind,
 329    parsed_markdown: &ParsedMarkdown,
 330    metadata: CodeBlockMetadata,
 331    active_thread: Entity<ActiveThread>,
 332    workspace: WeakEntity<Workspace>,
 333    _window: &Window,
 334    cx: &App,
 335) -> Div {
 336    let label = match kind {
 337        CodeBlockKind::Indented => None,
 338        CodeBlockKind::Fenced => Some(
 339            h_flex()
 340                .gap_1()
 341                .child(
 342                    Icon::new(IconName::Code)
 343                        .color(Color::Muted)
 344                        .size(IconSize::XSmall),
 345                )
 346                .child(Label::new("untitled").size(LabelSize::Small))
 347                .into_any_element(),
 348        ),
 349        CodeBlockKind::FencedLang(raw_language_name) => Some(
 350            h_flex()
 351                .gap_1()
 352                .children(
 353                    parsed_markdown
 354                        .languages_by_name
 355                        .get(raw_language_name)
 356                        .and_then(|language| {
 357                            language
 358                                .config()
 359                                .matcher
 360                                .path_suffixes
 361                                .iter()
 362                                .find_map(|extension| {
 363                                    file_icons::FileIcons::get_icon(Path::new(extension), cx)
 364                                })
 365                                .map(Icon::from_path)
 366                                .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
 367                        }),
 368                )
 369                .child(
 370                    Label::new(
 371                        parsed_markdown
 372                            .languages_by_name
 373                            .get(raw_language_name)
 374                            .map(|language| language.name().into())
 375                            .clone()
 376                            .unwrap_or_else(|| raw_language_name.clone()),
 377                    )
 378                    .size(LabelSize::Small),
 379                )
 380                .into_any_element(),
 381        ),
 382        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 383            let content = if let Some(parent) = path_range.path.parent() {
 384                h_flex()
 385                    .ml_1()
 386                    .gap_1()
 387                    .child(
 388                        Label::new(file_name.to_string_lossy().to_string()).size(LabelSize::Small),
 389                    )
 390                    .child(
 391                        Label::new(parent.to_string_lossy().to_string())
 392                            .color(Color::Muted)
 393                            .size(LabelSize::Small),
 394                    )
 395                    .into_any_element()
 396            } else {
 397                Label::new(path_range.path.to_string_lossy().to_string())
 398                    .size(LabelSize::Small)
 399                    .ml_1()
 400                    .into_any_element()
 401            };
 402
 403            h_flex()
 404                .id(("code-block-header-label", ix))
 405                .w_full()
 406                .max_w_full()
 407                .px_1()
 408                .gap_0p5()
 409                .cursor_pointer()
 410                .rounded_sm()
 411                .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 412                .tooltip(Tooltip::text("Jump to File"))
 413                .child(
 414                    h_flex()
 415                        .gap_0p5()
 416                        .children(
 417                            file_icons::FileIcons::get_icon(&path_range.path, cx)
 418                                .map(Icon::from_path)
 419                                .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 420                        )
 421                        .child(content)
 422                        .child(
 423                            Icon::new(IconName::ArrowUpRight)
 424                                .size(IconSize::XSmall)
 425                                .color(Color::Ignored),
 426                        ),
 427                )
 428                .on_click({
 429                    let path_range = path_range.clone();
 430                    move |_, window, cx| {
 431                        workspace
 432                            .update(cx, {
 433                                |workspace, cx| {
 434                                    let Some(project_path) = workspace
 435                                        .project()
 436                                        .read(cx)
 437                                        .find_project_path(&path_range.path, cx)
 438                                    else {
 439                                        return;
 440                                    };
 441                                    let Some(target) = path_range.range.as_ref().map(|range| {
 442                                        Point::new(
 443                                            // Line number is 1-based
 444                                            range.start.line.saturating_sub(1),
 445                                            range.start.col.unwrap_or(0),
 446                                        )
 447                                    }) else {
 448                                        return;
 449                                    };
 450                                    let open_task =
 451                                        workspace.open_path(project_path, None, true, window, cx);
 452                                    window
 453                                        .spawn(cx, async move |cx| {
 454                                            let item = open_task.await?;
 455                                            if let Some(active_editor) = item.downcast::<Editor>() {
 456                                                active_editor
 457                                                    .update_in(cx, |editor, window, cx| {
 458                                                        editor.go_to_singleton_buffer_point(
 459                                                            target, window, cx,
 460                                                        );
 461                                                    })
 462                                                    .ok();
 463                                            }
 464                                            anyhow::Ok(())
 465                                        })
 466                                        .detach_and_log_err(cx);
 467                                }
 468                            })
 469                            .ok();
 470                    }
 471                })
 472                .into_any_element()
 473        }),
 474    };
 475
 476    let codeblock_was_copied = active_thread
 477        .read(cx)
 478        .copied_code_block_ids
 479        .contains(&(message_id, ix));
 480
 481    let is_expanded = active_thread
 482        .read(cx)
 483        .expanded_code_blocks
 484        .get(&(message_id, ix))
 485        .copied()
 486        .unwrap_or(true);
 487
 488    let codeblock_header_bg = cx
 489        .theme()
 490        .colors()
 491        .element_background
 492        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 493
 494    let codeblock_header = h_flex()
 495        .py_1()
 496        .pl_1p5()
 497        .pr_1()
 498        .gap_1()
 499        .justify_between()
 500        .border_b_1()
 501        .border_color(cx.theme().colors().border.opacity(0.6))
 502        .bg(codeblock_header_bg)
 503        .rounded_t_md()
 504        .children(label)
 505        .child(
 506            h_flex()
 507                .visible_on_hover("codeblock_container")
 508                .gap_1()
 509                .child(
 510                    IconButton::new(
 511                        ("copy-markdown-code", ix),
 512                        if codeblock_was_copied {
 513                            IconName::Check
 514                        } else {
 515                            IconName::Copy
 516                        },
 517                    )
 518                    .icon_color(Color::Muted)
 519                    .shape(ui::IconButtonShape::Square)
 520                    .tooltip(Tooltip::text("Copy Code"))
 521                    .on_click({
 522                        let active_thread = active_thread.clone();
 523                        let parsed_markdown = parsed_markdown.clone();
 524                        let code_block_range = metadata.content_range.clone();
 525                        move |_event, _window, cx| {
 526                            active_thread.update(cx, |this, cx| {
 527                                this.copied_code_block_ids.insert((message_id, ix));
 528
 529                                let code =
 530                                    parsed_markdown.source()[code_block_range.clone()].to_string();
 531                                cx.write_to_clipboard(ClipboardItem::new_string(code));
 532
 533                                cx.spawn(async move |this, cx| {
 534                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 535
 536                                    cx.update(|cx| {
 537                                        this.update(cx, |this, cx| {
 538                                            this.copied_code_block_ids.remove(&(message_id, ix));
 539                                            cx.notify();
 540                                        })
 541                                    })
 542                                    .ok();
 543                                })
 544                                .detach();
 545                            });
 546                        }
 547                    }),
 548                )
 549                .when(
 550                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 551                    |header| {
 552                        header.child(
 553                            IconButton::new(
 554                                ("expand-collapse-code", ix),
 555                                if is_expanded {
 556                                    IconName::ChevronUp
 557                                } else {
 558                                    IconName::ChevronDown
 559                                },
 560                            )
 561                            .icon_color(Color::Muted)
 562                            .shape(ui::IconButtonShape::Square)
 563                            .tooltip(Tooltip::text(if is_expanded {
 564                                "Collapse Code"
 565                            } else {
 566                                "Expand Code"
 567                            }))
 568                            .on_click({
 569                                let active_thread = active_thread.clone();
 570                                move |_event, _window, cx| {
 571                                    active_thread.update(cx, |this, cx| {
 572                                        let is_expanded = this
 573                                            .expanded_code_blocks
 574                                            .entry((message_id, ix))
 575                                            .or_insert(true);
 576                                        *is_expanded = !*is_expanded;
 577                                        cx.notify();
 578                                    });
 579                                }
 580                            }),
 581                        )
 582                    },
 583                ),
 584        );
 585
 586    v_flex()
 587        .group("codeblock_container")
 588        .my_2()
 589        .overflow_hidden()
 590        .rounded_lg()
 591        .border_1()
 592        .border_color(cx.theme().colors().border.opacity(0.6))
 593        .bg(cx.theme().colors().editor_background)
 594        .child(codeblock_header)
 595        .when(
 596            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 597            |this| {
 598                if is_expanded {
 599                    this.h_full()
 600                } else {
 601                    this.max_h_80()
 602                }
 603            },
 604        )
 605}
 606
 607fn open_markdown_link(
 608    text: SharedString,
 609    workspace: WeakEntity<Workspace>,
 610    window: &mut Window,
 611    cx: &mut App,
 612) {
 613    let Some(workspace) = workspace.upgrade() else {
 614        cx.open_url(&text);
 615        return;
 616    };
 617
 618    match MentionLink::try_parse(&text, &workspace, cx) {
 619        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 620            if entry.is_dir() {
 621                workspace.project().update(cx, |_, cx| {
 622                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 623                })
 624            } else {
 625                workspace
 626                    .open_path(path, None, true, window, cx)
 627                    .detach_and_log_err(cx);
 628            }
 629        }),
 630        Some(MentionLink::Symbol(path, symbol_name)) => {
 631            let open_task = workspace.update(cx, |workspace, cx| {
 632                workspace.open_path(path, None, true, window, cx)
 633            });
 634            window
 635                .spawn(cx, async move |cx| {
 636                    let active_editor = open_task
 637                        .await?
 638                        .downcast::<Editor>()
 639                        .context("Item is not an editor")?;
 640                    active_editor.update_in(cx, |editor, window, cx| {
 641                        let symbol_range = editor
 642                            .buffer()
 643                            .read(cx)
 644                            .snapshot(cx)
 645                            .outline(None)
 646                            .and_then(|outline| {
 647                                outline
 648                                    .find_most_similar(&symbol_name)
 649                                    .map(|(_, item)| item.range.clone())
 650                            })
 651                            .context("Could not find matching symbol")?;
 652
 653                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 654                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 655                        });
 656                        anyhow::Ok(())
 657                    })
 658                })
 659                .detach_and_log_err(cx);
 660        }
 661        Some(MentionLink::Selection(path, line_range)) => {
 662            let open_task = workspace.update(cx, |workspace, cx| {
 663                workspace.open_path(path, None, true, window, cx)
 664            });
 665            window
 666                .spawn(cx, async move |cx| {
 667                    let active_editor = open_task
 668                        .await?
 669                        .downcast::<Editor>()
 670                        .context("Item is not an editor")?;
 671                    active_editor.update_in(cx, |editor, window, cx| {
 672                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 673                            s.select_ranges([Point::new(line_range.start as u32, 0)
 674                                ..Point::new(line_range.start as u32, 0)])
 675                        });
 676                        anyhow::Ok(())
 677                    })
 678                })
 679                .detach_and_log_err(cx);
 680        }
 681        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 682            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 683                panel.update(cx, |panel, cx| {
 684                    panel
 685                        .open_thread(&thread_id, window, cx)
 686                        .detach_and_log_err(cx)
 687                });
 688            }
 689        }),
 690        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 691        Some(MentionLink::Rules(prompt_id)) => window.dispatch_action(
 692            Box::new(OpenRulesLibrary {
 693                prompt_to_select: Some(prompt_id.0),
 694            }),
 695            cx,
 696        ),
 697        None => cx.open_url(&text),
 698    }
 699}
 700
 701struct EditMessageState {
 702    editor: Entity<Editor>,
 703    last_estimated_token_count: Option<usize>,
 704    _subscription: Subscription,
 705    _update_token_count_task: Option<Task<anyhow::Result<()>>>,
 706}
 707
 708impl ActiveThread {
 709    pub fn new(
 710        thread: Entity<Thread>,
 711        thread_store: Entity<ThreadStore>,
 712        language_registry: Arc<LanguageRegistry>,
 713        workspace: WeakEntity<Workspace>,
 714        window: &mut Window,
 715        cx: &mut Context<Self>,
 716    ) -> Self {
 717        let subscriptions = vec![
 718            cx.observe(&thread, |_, _, cx| cx.notify()),
 719            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 720            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 721        ];
 722
 723        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 724            let this = cx.entity().downgrade();
 725            move |ix, window: &mut Window, cx: &mut App| {
 726                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 727                    .unwrap()
 728            }
 729        });
 730
 731        let mut this = Self {
 732            language_registry,
 733            thread_store,
 734            thread: thread.clone(),
 735            workspace,
 736            save_thread_task: None,
 737            messages: Vec::new(),
 738            rendered_messages_by_id: HashMap::default(),
 739            rendered_tool_uses: HashMap::default(),
 740            expanded_tool_uses: HashMap::default(),
 741            expanded_thinking_segments: HashMap::default(),
 742            expanded_code_blocks: HashMap::default(),
 743            list_state: list_state.clone(),
 744            scrollbar_state: ScrollbarState::new(list_state),
 745            show_scrollbar: false,
 746            hide_scrollbar_task: None,
 747            editing_message: None,
 748            last_error: None,
 749            last_usage: None,
 750            copied_code_block_ids: HashSet::default(),
 751            notifications: Vec::new(),
 752            _subscriptions: subscriptions,
 753            notification_subscriptions: HashMap::default(),
 754            open_feedback_editors: HashMap::default(),
 755        };
 756
 757        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 758            this.push_message(&message.id, &message.segments, window, cx);
 759
 760            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 761                this.render_tool_use_markdown(
 762                    tool_use.id.clone(),
 763                    tool_use.ui_text.clone(),
 764                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 765                    tool_use.status.text(),
 766                    cx,
 767                );
 768            }
 769        }
 770
 771        this
 772    }
 773
 774    pub fn thread(&self) -> &Entity<Thread> {
 775        &self.thread
 776    }
 777
 778    pub fn is_empty(&self) -> bool {
 779        self.messages.is_empty()
 780    }
 781
 782    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 783        self.thread.read(cx).summary()
 784    }
 785
 786    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 787        self.thread.read(cx).summary_or_default()
 788    }
 789
 790    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 791        self.last_error.take();
 792        self.thread.update(cx, |thread, cx| {
 793            thread.cancel_last_completion(Some(window.window_handle()), cx)
 794        })
 795    }
 796
 797    pub fn last_error(&self) -> Option<ThreadError> {
 798        self.last_error.clone()
 799    }
 800
 801    pub fn clear_last_error(&mut self) {
 802        self.last_error.take();
 803    }
 804
 805    pub fn last_usage(&self) -> Option<RequestUsage> {
 806        self.last_usage
 807    }
 808
 809    /// Returns the editing message id and the estimated token count in the content
 810    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 811        self.editing_message
 812            .as_ref()
 813            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 814    }
 815
 816    fn push_message(
 817        &mut self,
 818        id: &MessageId,
 819        segments: &[MessageSegment],
 820        _window: &mut Window,
 821        cx: &mut Context<Self>,
 822    ) {
 823        let old_len = self.messages.len();
 824        self.messages.push(*id);
 825        self.list_state.splice(old_len..old_len, 1);
 826
 827        let rendered_message =
 828            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 829        self.rendered_messages_by_id.insert(*id, rendered_message);
 830    }
 831
 832    fn edited_message(
 833        &mut self,
 834        id: &MessageId,
 835        segments: &[MessageSegment],
 836        _window: &mut Window,
 837        cx: &mut Context<Self>,
 838    ) {
 839        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 840            return;
 841        };
 842        self.list_state.splice(index..index + 1, 1);
 843        let rendered_message =
 844            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 845        self.rendered_messages_by_id.insert(*id, rendered_message);
 846    }
 847
 848    fn deleted_message(&mut self, id: &MessageId) {
 849        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 850            return;
 851        };
 852        self.messages.remove(index);
 853        self.list_state.splice(index..index + 1, 0);
 854        self.rendered_messages_by_id.remove(id);
 855    }
 856
 857    fn render_tool_use_markdown(
 858        &mut self,
 859        tool_use_id: LanguageModelToolUseId,
 860        tool_label: impl Into<SharedString>,
 861        tool_input: &str,
 862        tool_output: SharedString,
 863        cx: &mut Context<Self>,
 864    ) {
 865        let rendered = self
 866            .rendered_tool_uses
 867            .entry(tool_use_id.clone())
 868            .or_insert_with(|| RenderedToolUse {
 869                label: cx.new(|cx| {
 870                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 871                }),
 872                input: cx.new(|cx| {
 873                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 874                }),
 875                output: cx.new(|cx| {
 876                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 877                }),
 878            });
 879
 880        rendered.label.update(cx, |this, cx| {
 881            this.replace(tool_label, cx);
 882        });
 883        rendered.input.update(cx, |this, cx| {
 884            this.replace(
 885                MarkdownCodeBlock {
 886                    tag: "json",
 887                    text: tool_input,
 888                }
 889                .to_string(),
 890                cx,
 891            );
 892        });
 893        rendered.output.update(cx, |this, cx| {
 894            this.replace(tool_output, cx);
 895        });
 896    }
 897
 898    fn handle_thread_event(
 899        &mut self,
 900        _thread: &Entity<Thread>,
 901        event: &ThreadEvent,
 902        window: &mut Window,
 903        cx: &mut Context<Self>,
 904    ) {
 905        match event {
 906            ThreadEvent::CancelEditing => {
 907                if self.editing_message.is_some() {
 908                    self.cancel_editing_message(&menu::Cancel, window, cx);
 909                }
 910            }
 911            ThreadEvent::ShowError(error) => {
 912                self.last_error = Some(error.clone());
 913            }
 914            ThreadEvent::UsageUpdated(usage) => {
 915                self.last_usage = Some(*usage);
 916            }
 917            ThreadEvent::StreamedCompletion
 918            | ThreadEvent::SummaryGenerated
 919            | ThreadEvent::SummaryChanged => {
 920                self.save_thread(cx);
 921            }
 922            ThreadEvent::Stopped(reason) => match reason {
 923                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 924                    let thread = self.thread.read(cx);
 925                    self.show_notification(
 926                        if thread.used_tools_since_last_user_message() {
 927                            "Finished running tools"
 928                        } else {
 929                            "New message"
 930                        },
 931                        IconName::ZedAssistant,
 932                        window,
 933                        cx,
 934                    );
 935                }
 936                _ => {}
 937            },
 938            ThreadEvent::ToolConfirmationNeeded => {
 939                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 940            }
 941            ThreadEvent::StreamedAssistantText(message_id, text) => {
 942                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 943                    rendered_message.append_text(text, cx);
 944                }
 945            }
 946            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 947                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 948                    rendered_message.append_thinking(text, cx);
 949                }
 950            }
 951            ThreadEvent::MessageAdded(message_id) => {
 952                if let Some(message_segments) = self
 953                    .thread
 954                    .read(cx)
 955                    .message(*message_id)
 956                    .map(|message| message.segments.clone())
 957                {
 958                    self.push_message(message_id, &message_segments, window, cx);
 959                }
 960
 961                self.save_thread(cx);
 962                cx.notify();
 963            }
 964            ThreadEvent::MessageEdited(message_id) => {
 965                if let Some(message_segments) = self
 966                    .thread
 967                    .read(cx)
 968                    .message(*message_id)
 969                    .map(|message| message.segments.clone())
 970                {
 971                    self.edited_message(message_id, &message_segments, window, cx);
 972                }
 973
 974                self.save_thread(cx);
 975                cx.notify();
 976            }
 977            ThreadEvent::MessageDeleted(message_id) => {
 978                self.deleted_message(message_id);
 979                self.save_thread(cx);
 980                cx.notify();
 981            }
 982            ThreadEvent::UsePendingTools { tool_uses } => {
 983                for tool_use in tool_uses {
 984                    self.render_tool_use_markdown(
 985                        tool_use.id.clone(),
 986                        tool_use.ui_text.clone(),
 987                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 988                        "".into(),
 989                        cx,
 990                    );
 991                }
 992            }
 993            ThreadEvent::StreamedToolUse {
 994                tool_use_id,
 995                ui_text,
 996                input,
 997            } => {
 998                self.render_tool_use_markdown(
 999                    tool_use_id.clone(),
1000                    ui_text.clone(),
1001                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1002                    "".into(),
1003                    cx,
1004                );
1005            }
1006            ThreadEvent::ToolFinished {
1007                pending_tool_use, ..
1008            } => {
1009                if let Some(tool_use) = pending_tool_use {
1010                    self.render_tool_use_markdown(
1011                        tool_use.id.clone(),
1012                        tool_use.ui_text.clone(),
1013                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1014                        self.thread
1015                            .read(cx)
1016                            .output_for_tool(&tool_use.id)
1017                            .map(|output| output.clone().into())
1018                            .unwrap_or("".into()),
1019                        cx,
1020                    );
1021                }
1022            }
1023            ThreadEvent::CheckpointChanged => cx.notify(),
1024            ThreadEvent::ReceivedTextChunk => {}
1025            ThreadEvent::InvalidToolInput {
1026                tool_use_id,
1027                ui_text,
1028                invalid_input_json,
1029            } => {
1030                self.render_tool_use_markdown(
1031                    tool_use_id.clone(),
1032                    ui_text,
1033                    invalid_input_json,
1034                    self.thread
1035                        .read(cx)
1036                        .output_for_tool(tool_use_id)
1037                        .map(|output| output.clone().into())
1038                        .unwrap_or("".into()),
1039                    cx,
1040                );
1041            }
1042        }
1043    }
1044
1045    fn handle_rules_loading_error(
1046        &mut self,
1047        _thread_store: Entity<ThreadStore>,
1048        error: &RulesLoadingError,
1049        cx: &mut Context<Self>,
1050    ) {
1051        self.last_error = Some(ThreadError::Message {
1052            header: "Error loading rules file".into(),
1053            message: error.message.clone(),
1054        });
1055        cx.notify();
1056    }
1057
1058    fn show_notification(
1059        &mut self,
1060        caption: impl Into<SharedString>,
1061        icon: IconName,
1062        window: &mut Window,
1063        cx: &mut Context<ActiveThread>,
1064    ) {
1065        if window.is_window_active() || !self.notifications.is_empty() {
1066            return;
1067        }
1068
1069        let title = self
1070            .thread
1071            .read(cx)
1072            .summary()
1073            .unwrap_or("Agent Panel".into());
1074
1075        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1076            NotifyWhenAgentWaiting::PrimaryScreen => {
1077                if let Some(primary) = cx.primary_display() {
1078                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1079                }
1080            }
1081            NotifyWhenAgentWaiting::AllScreens => {
1082                let caption = caption.into();
1083                for screen in cx.displays() {
1084                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1085                }
1086            }
1087            NotifyWhenAgentWaiting::Never => {
1088                // Don't show anything
1089            }
1090        }
1091    }
1092
1093    fn pop_up(
1094        &mut self,
1095        icon: IconName,
1096        caption: SharedString,
1097        title: SharedString,
1098        window: &mut Window,
1099        screen: Rc<dyn PlatformDisplay>,
1100        cx: &mut Context<'_, ActiveThread>,
1101    ) {
1102        let options = AgentNotification::window_options(screen, cx);
1103
1104        let project_name = self.workspace.upgrade().and_then(|workspace| {
1105            workspace
1106                .read(cx)
1107                .project()
1108                .read(cx)
1109                .visible_worktrees(cx)
1110                .next()
1111                .map(|worktree| worktree.read(cx).root_name().to_string())
1112        });
1113
1114        if let Some(screen_window) = cx
1115            .open_window(options, |_, cx| {
1116                cx.new(|_| {
1117                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1118                })
1119            })
1120            .log_err()
1121        {
1122            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1123                self.notification_subscriptions
1124                    .entry(screen_window)
1125                    .or_insert_with(Vec::new)
1126                    .push(cx.subscribe_in(&pop_up, window, {
1127                        |this, _, event, window, cx| match event {
1128                            AgentNotificationEvent::Accepted => {
1129                                let handle = window.window_handle();
1130                                cx.activate(true);
1131
1132                                let workspace_handle = this.workspace.clone();
1133
1134                                // If there are multiple Zed windows, activate the correct one.
1135                                cx.defer(move |cx| {
1136                                    handle
1137                                        .update(cx, |_view, window, _cx| {
1138                                            window.activate_window();
1139
1140                                            if let Some(workspace) = workspace_handle.upgrade() {
1141                                                workspace.update(_cx, |workspace, cx| {
1142                                                    workspace
1143                                                        .focus_panel::<AssistantPanel>(window, cx);
1144                                                });
1145                                            }
1146                                        })
1147                                        .log_err();
1148                                });
1149
1150                                this.dismiss_notifications(cx);
1151                            }
1152                            AgentNotificationEvent::Dismissed => {
1153                                this.dismiss_notifications(cx);
1154                            }
1155                        }
1156                    }));
1157
1158                self.notifications.push(screen_window);
1159
1160                // If the user manually refocuses the original window, dismiss the popup.
1161                self.notification_subscriptions
1162                    .entry(screen_window)
1163                    .or_insert_with(Vec::new)
1164                    .push({
1165                        let pop_up_weak = pop_up.downgrade();
1166
1167                        cx.observe_window_activation(window, move |_, window, cx| {
1168                            if window.is_window_active() {
1169                                if let Some(pop_up) = pop_up_weak.upgrade() {
1170                                    pop_up.update(cx, |_, cx| {
1171                                        cx.emit(AgentNotificationEvent::Dismissed);
1172                                    });
1173                                }
1174                            }
1175                        })
1176                    });
1177            }
1178        }
1179    }
1180
1181    /// Spawns a task to save the active thread.
1182    ///
1183    /// Only one task to save the thread will be in flight at a time.
1184    fn save_thread(&mut self, cx: &mut Context<Self>) {
1185        let thread = self.thread.clone();
1186        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1187            let task = this
1188                .update(cx, |this, cx| {
1189                    this.thread_store
1190                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1191                })
1192                .ok();
1193
1194            if let Some(task) = task {
1195                task.await.log_err();
1196            }
1197        }));
1198    }
1199
1200    fn start_editing_message(
1201        &mut self,
1202        message_id: MessageId,
1203        message_segments: &[MessageSegment],
1204        window: &mut Window,
1205        cx: &mut Context<Self>,
1206    ) {
1207        // User message should always consist of a single text segment,
1208        // therefore we can skip returning early if it's not a text segment.
1209        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1210            return;
1211        };
1212
1213        let buffer = cx.new(|cx| {
1214            MultiBuffer::singleton(cx.new(|cx| Buffer::local(message_text.clone(), cx)), cx)
1215        });
1216        let editor = cx.new(|cx| {
1217            let mut editor = Editor::new(
1218                editor::EditorMode::AutoHeight { max_lines: 8 },
1219                buffer,
1220                None,
1221                window,
1222                cx,
1223            );
1224            editor.focus_handle(cx).focus(window);
1225            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1226            editor
1227        });
1228        let subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1229            EditorEvent::BufferEdited => {
1230                this.update_editing_message_token_count(true, cx);
1231            }
1232            _ => {}
1233        });
1234        self.editing_message = Some((
1235            message_id,
1236            EditMessageState {
1237                editor: editor.clone(),
1238                last_estimated_token_count: None,
1239                _subscription: subscription,
1240                _update_token_count_task: None,
1241            },
1242        ));
1243        self.update_editing_message_token_count(false, cx);
1244        cx.notify();
1245    }
1246
1247    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1248        let Some((message_id, state)) = self.editing_message.as_mut() else {
1249            return;
1250        };
1251
1252        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1253        state._update_token_count_task.take();
1254
1255        let Some(default_model) = LanguageModelRegistry::read_global(cx).default_model() else {
1256            state.last_estimated_token_count.take();
1257            return;
1258        };
1259
1260        let editor = state.editor.clone();
1261        let thread = self.thread.clone();
1262        let message_id = *message_id;
1263
1264        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1265            if debounce {
1266                cx.background_executor()
1267                    .timer(Duration::from_millis(200))
1268                    .await;
1269            }
1270
1271            let token_count = if let Some(task) = cx.update(|cx| {
1272                let Some(message) = thread.read(cx).message(message_id) else {
1273                    log::error!("Message that was being edited no longer exists");
1274                    return None;
1275                };
1276                let message_text = editor.read(cx).text(cx);
1277
1278                if message_text.is_empty() && message.loaded_context.is_empty() {
1279                    return None;
1280                }
1281
1282                let mut request_message = LanguageModelRequestMessage {
1283                    role: language_model::Role::User,
1284                    content: Vec::new(),
1285                    cache: false,
1286                };
1287
1288                message
1289                    .loaded_context
1290                    .add_to_request_message(&mut request_message);
1291
1292                if !message_text.is_empty() {
1293                    request_message
1294                        .content
1295                        .push(MessageContent::Text(message_text));
1296                }
1297
1298                let request = language_model::LanguageModelRequest {
1299                    thread_id: None,
1300                    prompt_id: None,
1301                    mode: None,
1302                    messages: vec![request_message],
1303                    tools: vec![],
1304                    stop: vec![],
1305                    temperature: None,
1306                };
1307
1308                Some(default_model.model.count_tokens(request, cx))
1309            })? {
1310                task.await?
1311            } else {
1312                0
1313            };
1314
1315            this.update(cx, |this, cx| {
1316                let Some((_message_id, state)) = this.editing_message.as_mut() else {
1317                    return;
1318                };
1319
1320                state.last_estimated_token_count = Some(token_count);
1321                cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1322            })
1323        }));
1324    }
1325
1326    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1327        self.editing_message.take();
1328        cx.notify();
1329    }
1330
1331    fn confirm_editing_message(
1332        &mut self,
1333        _: &menu::Confirm,
1334        window: &mut Window,
1335        cx: &mut Context<Self>,
1336    ) {
1337        let Some((message_id, state)) = self.editing_message.take() else {
1338            return;
1339        };
1340        let edited_text = state.editor.read(cx).text(cx);
1341        self.thread.update(cx, |thread, cx| {
1342            thread.edit_message(
1343                message_id,
1344                Role::User,
1345                vec![MessageSegment::Text(edited_text)],
1346                cx,
1347            );
1348            for message_id in self.messages_after(message_id) {
1349                thread.delete_message(*message_id, cx);
1350            }
1351        });
1352
1353        let Some(model) = LanguageModelRegistry::read_global(cx).default_model() else {
1354            return;
1355        };
1356
1357        if model.provider.must_accept_terms(cx) {
1358            cx.notify();
1359            return;
1360        }
1361
1362        self.thread.update(cx, |thread, cx| {
1363            thread.advance_prompt_id();
1364            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1365        });
1366        cx.notify();
1367    }
1368
1369    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1370        self.messages
1371            .iter()
1372            .position(|id| *id == message_id)
1373            .map(|index| &self.messages[index + 1..])
1374            .unwrap_or(&[])
1375    }
1376
1377    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1378        self.cancel_editing_message(&menu::Cancel, window, cx);
1379    }
1380
1381    fn handle_regenerate_click(
1382        &mut self,
1383        _: &ClickEvent,
1384        window: &mut Window,
1385        cx: &mut Context<Self>,
1386    ) {
1387        self.confirm_editing_message(&menu::Confirm, window, cx);
1388    }
1389
1390    fn handle_feedback_click(
1391        &mut self,
1392        message_id: MessageId,
1393        feedback: ThreadFeedback,
1394        window: &mut Window,
1395        cx: &mut Context<Self>,
1396    ) {
1397        let report = self.thread.update(cx, |thread, cx| {
1398            thread.report_message_feedback(message_id, feedback, cx)
1399        });
1400
1401        cx.spawn(async move |this, cx| {
1402            report.await?;
1403            this.update(cx, |_this, cx| cx.notify())
1404        })
1405        .detach_and_log_err(cx);
1406
1407        match feedback {
1408            ThreadFeedback::Positive => {
1409                self.open_feedback_editors.remove(&message_id);
1410            }
1411            ThreadFeedback::Negative => {
1412                self.handle_show_feedback_comments(message_id, window, cx);
1413            }
1414        }
1415    }
1416
1417    fn handle_show_feedback_comments(
1418        &mut self,
1419        message_id: MessageId,
1420        window: &mut Window,
1421        cx: &mut Context<Self>,
1422    ) {
1423        let buffer = cx.new(|cx| {
1424            let empty_string = String::new();
1425            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1426        });
1427
1428        let editor = cx.new(|cx| {
1429            let mut editor = Editor::new(
1430                editor::EditorMode::AutoHeight { max_lines: 4 },
1431                buffer,
1432                None,
1433                window,
1434                cx,
1435            );
1436            editor.set_placeholder_text(
1437                "What went wrong? Share your feedback so we can improve.",
1438                cx,
1439            );
1440            editor
1441        });
1442
1443        editor.read(cx).focus_handle(cx).focus(window);
1444        self.open_feedback_editors.insert(message_id, editor);
1445        cx.notify();
1446    }
1447
1448    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1449        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1450            return;
1451        };
1452
1453        let report_task = self.thread.update(cx, |thread, cx| {
1454            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1455        });
1456
1457        let comments = editor.read(cx).text(cx);
1458        if !comments.is_empty() {
1459            let thread_id = self.thread.read(cx).id().clone();
1460            let comments_value = String::from(comments.as_str());
1461
1462            let message_content = self
1463                .thread
1464                .read(cx)
1465                .message(message_id)
1466                .map(|msg| msg.to_string())
1467                .unwrap_or_default();
1468
1469            telemetry::event!(
1470                "Assistant Thread Feedback Comments",
1471                thread_id,
1472                message_id = message_id.0,
1473                message_content,
1474                comments = comments_value
1475            );
1476
1477            self.open_feedback_editors.remove(&message_id);
1478
1479            cx.spawn(async move |this, cx| {
1480                report_task.await?;
1481                this.update(cx, |_this, cx| cx.notify())
1482            })
1483            .detach_and_log_err(cx);
1484        }
1485    }
1486
1487    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1488        let message_id = self.messages[ix];
1489        let Some(message) = self.thread.read(cx).message(message_id) else {
1490            return Empty.into_any();
1491        };
1492
1493        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1494            return Empty.into_any();
1495        };
1496
1497        let workspace = self.workspace.clone();
1498        let thread = self.thread.read(cx);
1499
1500        // Get all the data we need from thread before we start using it in closures
1501        let checkpoint = thread.checkpoint_for_message(message_id);
1502        let added_context = thread
1503            .context_for_message(message_id)
1504            .map(|context| AddedContext::new_attached(context, cx))
1505            .collect::<Vec<_>>();
1506
1507        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1508        let has_tool_uses = !tool_uses.is_empty();
1509        let is_generating = thread.is_generating();
1510
1511        let is_first_message = ix == 0;
1512        let is_last_message = ix == self.messages.len() - 1;
1513
1514        let show_feedback = thread.is_turn_end(ix);
1515
1516        let needs_confirmation = tool_uses.iter().any(|tool_use| tool_use.needs_confirmation);
1517
1518        let generating_label = (is_generating && is_last_message)
1519            .then(|| AnimatedLabel::new("Generating").size(LabelSize::Small));
1520
1521        let edit_message_editor = self
1522            .editing_message
1523            .as_ref()
1524            .filter(|(id, _)| *id == message_id)
1525            .map(|(_, state)| state.editor.clone());
1526
1527        let colors = cx.theme().colors();
1528        let editor_bg_color = colors.editor_background;
1529
1530        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1531            .shape(ui::IconButtonShape::Square)
1532            .icon_size(IconSize::XSmall)
1533            .icon_color(Color::Ignored)
1534            .tooltip(Tooltip::text("Open Thread as Markdown"))
1535            .on_click(|_, window, cx| {
1536                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1537            });
1538
1539        // For all items that should be aligned with the LLM's response.
1540        const RESPONSE_PADDING_X: Pixels = px(18.);
1541
1542        let feedback_container = h_flex()
1543            .group("feedback_container")
1544            .py_2()
1545            .px(RESPONSE_PADDING_X)
1546            .gap_1()
1547            .flex_wrap()
1548            .justify_end();
1549        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1550            Some(feedback) => feedback_container
1551                .child(
1552                    div().mr_1().visible_on_hover("feedback_container").child(
1553                        Label::new(match feedback {
1554                            ThreadFeedback::Positive => "Thanks for your feedback!",
1555                            ThreadFeedback::Negative => {
1556                                "We appreciate your feedback and will use it to improve."
1557                            }
1558                        })
1559                    .color(Color::Muted)
1560                    .size(LabelSize::XSmall)
1561                    .truncate())
1562                )
1563                .child(
1564                    h_flex()
1565                        .pr_1()
1566                        .gap_1()
1567                        .child(
1568                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1569                                .shape(ui::IconButtonShape::Square)
1570                                .icon_size(IconSize::XSmall)
1571                                .icon_color(match feedback {
1572                                    ThreadFeedback::Positive => Color::Accent,
1573                                    ThreadFeedback::Negative => Color::Ignored,
1574                                })
1575                                .tooltip(Tooltip::text("Helpful Response"))
1576                                .on_click(cx.listener(move |this, _, window, cx| {
1577                                    this.handle_feedback_click(
1578                                        message_id,
1579                                        ThreadFeedback::Positive,
1580                                        window,
1581                                        cx,
1582                                    );
1583                                })),
1584                        )
1585                        .child(
1586                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1587                                .shape(ui::IconButtonShape::Square)
1588                                .icon_size(IconSize::XSmall)
1589                                .icon_color(match feedback {
1590                                    ThreadFeedback::Positive => Color::Ignored,
1591                                    ThreadFeedback::Negative => Color::Accent,
1592                                })
1593                                .tooltip(Tooltip::text("Not Helpful"))
1594                                .on_click(cx.listener(move |this, _, window, cx| {
1595                                    this.handle_feedback_click(
1596                                        message_id,
1597                                        ThreadFeedback::Negative,
1598                                        window,
1599                                        cx,
1600                                    );
1601                                })),
1602                        )
1603                        .child(open_as_markdown),
1604                )
1605                .into_any_element(),
1606            None => feedback_container
1607                .child(
1608                    div().mr_1().visible_on_hover("feedback_container").child(
1609                        Label::new(
1610                            "Rating the thread sends all of your current conversation to the Zed team.",
1611                        )
1612                        .color(Color::Muted)
1613                    .size(LabelSize::XSmall)
1614                    .truncate())
1615                )
1616                .child(
1617                    h_flex()
1618                        .pr_1()
1619                        .gap_1()
1620                        .child(
1621                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1622                                .icon_size(IconSize::XSmall)
1623                                .icon_color(Color::Ignored)
1624                                .shape(ui::IconButtonShape::Square)
1625                                .tooltip(Tooltip::text("Helpful Response"))
1626                                .on_click(cx.listener(move |this, _, window, cx| {
1627                                    this.handle_feedback_click(
1628                                        message_id,
1629                                        ThreadFeedback::Positive,
1630                                        window,
1631                                        cx,
1632                                    );
1633                                })),
1634                        )
1635                        .child(
1636                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1637                                .icon_size(IconSize::XSmall)
1638                                .icon_color(Color::Ignored)
1639                                .shape(ui::IconButtonShape::Square)
1640                                .tooltip(Tooltip::text("Not Helpful"))
1641                                .on_click(cx.listener(move |this, _, window, cx| {
1642                                    this.handle_feedback_click(
1643                                        message_id,
1644                                        ThreadFeedback::Negative,
1645                                        window,
1646                                        cx,
1647                                    );
1648                                })),
1649                        )
1650                        .child(open_as_markdown),
1651                )
1652                .into_any_element(),
1653        };
1654
1655        let message_is_empty = message.should_display_content();
1656        let has_content = !message_is_empty || !added_context.is_empty();
1657
1658        let message_content = has_content.then(|| {
1659            v_flex()
1660                .w_full()
1661                .gap_1()
1662                .when(!message_is_empty, |parent| {
1663                    parent.child(
1664                        if let Some(edit_message_editor) = edit_message_editor.clone() {
1665                            let settings = ThemeSettings::get_global(cx);
1666                            let font_size = TextSize::Small.rems(cx);
1667                            let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1668
1669                            let text_style = TextStyle {
1670                                color: cx.theme().colors().text,
1671                                font_family: settings.buffer_font.family.clone(),
1672                                font_fallbacks: settings.buffer_font.fallbacks.clone(),
1673                                font_features: settings.buffer_font.features.clone(),
1674                                font_size: font_size.into(),
1675                                line_height: line_height.into(),
1676                                ..Default::default()
1677                            };
1678
1679                            div()
1680                                .key_context("EditMessageEditor")
1681                                .on_action(cx.listener(Self::cancel_editing_message))
1682                                .on_action(cx.listener(Self::confirm_editing_message))
1683                                .min_h_6()
1684                                .flex_grow()
1685                                .w_full()
1686                                .child(EditorElement::new(
1687                                    &edit_message_editor,
1688                                    EditorStyle {
1689                                        background: colors.editor_background,
1690                                        local_player: cx.theme().players().local(),
1691                                        text: text_style,
1692                                        syntax: cx.theme().syntax().clone(),
1693                                        ..Default::default()
1694                                    },
1695                                ))
1696                                .into_any()
1697                        } else {
1698                            div()
1699                                .min_h_6()
1700                                .child(self.render_message_content(
1701                                    message_id,
1702                                    rendered_message,
1703                                    has_tool_uses,
1704                                    workspace.clone(),
1705                                    window,
1706                                    cx,
1707                                ))
1708                                .into_any()
1709                        },
1710                    )
1711                })
1712                .when(!added_context.is_empty(), |parent| {
1713                    parent.child(h_flex().flex_wrap().gap_1().children(
1714                        added_context.into_iter().map(|added_context| {
1715                            let context = added_context.handle.clone();
1716                            ContextPill::added(added_context, false, false, None).on_click(Rc::new(
1717                                cx.listener({
1718                                    let workspace = workspace.clone();
1719                                    move |_, _, window, cx| {
1720                                        if let Some(workspace) = workspace.upgrade() {
1721                                            open_context(&context, workspace, window, cx);
1722                                            cx.notify();
1723                                        }
1724                                    }
1725                                }),
1726                            ))
1727                        }),
1728                    ))
1729                })
1730        });
1731
1732        let styled_message = match message.role {
1733            Role::User => v_flex()
1734                .id(("message-container", ix))
1735                .pt_2()
1736                .pl_2()
1737                .pr_2p5()
1738                .pb_4()
1739                .child(
1740                    v_flex()
1741                        .id(("user-message", ix))
1742                        .bg(editor_bg_color)
1743                        .rounded_lg()
1744                        .shadow_md()
1745                        .border_1()
1746                        .border_color(colors.border)
1747                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1748                        .cursor_pointer()
1749                        .child(
1750                            h_flex()
1751                                .p_2()
1752                                .pt_3()
1753                                .gap_1()
1754                                .children(message_content)
1755                                .when_some(edit_message_editor.clone(), |this, edit_editor| {
1756                                    let edit_editor_clone = edit_editor.clone();
1757                                    this.w_full().justify_between().child(
1758                                        h_flex()
1759                                            .gap_0p5()
1760                                            .child(
1761                                                IconButton::new(
1762                                                    "cancel-edit-message",
1763                                                    IconName::Close,
1764                                                )
1765                                                .shape(ui::IconButtonShape::Square)
1766                                                .icon_color(Color::Error)
1767                                                .tooltip(move |window, cx| {
1768                                                    let focus_handle =
1769                                                        edit_editor_clone.focus_handle(cx);
1770                                                    Tooltip::for_action_in(
1771                                                        "Cancel Edit",
1772                                                        &menu::Cancel,
1773                                                        &focus_handle,
1774                                                        window,
1775                                                        cx,
1776                                                    )
1777                                                })
1778                                                .on_click(cx.listener(Self::handle_cancel_click)),
1779                                            )
1780                                            .child(
1781                                                IconButton::new(
1782                                                    "confirm-edit-message",
1783                                                    IconName::Check,
1784                                                )
1785                                                .disabled(edit_editor.read(cx).is_empty(cx))
1786                                                .shape(ui::IconButtonShape::Square)
1787                                                .icon_color(Color::Success)
1788                                                .tooltip(move |window, cx| {
1789                                                    let focus_handle = edit_editor.focus_handle(cx);
1790                                                    Tooltip::for_action_in(
1791                                                        "Regenerate",
1792                                                        &menu::Confirm,
1793                                                        &focus_handle,
1794                                                        window,
1795                                                        cx,
1796                                                    )
1797                                                })
1798                                                .on_click(
1799                                                    cx.listener(Self::handle_regenerate_click),
1800                                                ),
1801                                            ),
1802                                    )
1803                                }),
1804                        )
1805                        .when(edit_message_editor.is_none(), |this| {
1806                            this.tooltip(Tooltip::text("Click To Edit"))
1807                        })
1808                        .on_click(cx.listener({
1809                            let message_segments = message.segments.clone();
1810                            move |this, _, window, cx| {
1811                                this.start_editing_message(
1812                                    message_id,
1813                                    &message_segments,
1814                                    window,
1815                                    cx,
1816                                );
1817                            }
1818                        })),
1819                ),
1820            Role::Assistant => v_flex()
1821                .id(("message-container", ix))
1822                .px(RESPONSE_PADDING_X)
1823                .gap_2()
1824                .children(message_content)
1825                .when(has_tool_uses, |parent| {
1826                    parent.children(tool_uses.into_iter().map(|tool_use| {
1827                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
1828                    }))
1829                }),
1830            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1831                v_flex()
1832                    .bg(colors.editor_background)
1833                    .rounded_sm()
1834                    .child(div().p_4().children(message_content)),
1835            ),
1836        };
1837
1838        let after_editing_message = self
1839            .editing_message
1840            .as_ref()
1841            .map_or(false, |(editing_message_id, _)| {
1842                message_id > *editing_message_id
1843            });
1844
1845        let panel_background = cx.theme().colors().panel_background;
1846
1847        v_flex()
1848            .w_full()
1849            .when_some(checkpoint, |parent, checkpoint| {
1850                let mut is_pending = false;
1851                let mut error = None;
1852                if let Some(last_restore_checkpoint) =
1853                    self.thread.read(cx).last_restore_checkpoint()
1854                {
1855                    if last_restore_checkpoint.message_id() == message_id {
1856                        match last_restore_checkpoint {
1857                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1858                            LastRestoreCheckpoint::Error { error: err, .. } => {
1859                                error = Some(err.clone());
1860                            }
1861                        }
1862                    }
1863                }
1864
1865                let restore_checkpoint_button =
1866                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1867                        .icon(if error.is_some() {
1868                            IconName::XCircle
1869                        } else {
1870                            IconName::Undo
1871                        })
1872                        .icon_size(IconSize::XSmall)
1873                        .icon_position(IconPosition::Start)
1874                        .icon_color(if error.is_some() {
1875                            Some(Color::Error)
1876                        } else {
1877                            None
1878                        })
1879                        .label_size(LabelSize::XSmall)
1880                        .disabled(is_pending)
1881                        .on_click(cx.listener(move |this, _, _window, cx| {
1882                            this.thread.update(cx, |thread, cx| {
1883                                thread
1884                                    .restore_checkpoint(checkpoint.clone(), cx)
1885                                    .detach_and_log_err(cx);
1886                            });
1887                        }));
1888
1889                let restore_checkpoint_button = if is_pending {
1890                    restore_checkpoint_button
1891                        .with_animation(
1892                            ("pulsating-restore-checkpoint-button", ix),
1893                            Animation::new(Duration::from_secs(2))
1894                                .repeat()
1895                                .with_easing(pulsating_between(0.6, 1.)),
1896                            |label, delta| label.alpha(delta),
1897                        )
1898                        .into_any_element()
1899                } else if let Some(error) = error {
1900                    restore_checkpoint_button
1901                        .tooltip(Tooltip::text(error.to_string()))
1902                        .into_any_element()
1903                } else {
1904                    restore_checkpoint_button.into_any_element()
1905                };
1906
1907                parent.child(
1908                    h_flex()
1909                        .pt_2p5()
1910                        .px_2p5()
1911                        .w_full()
1912                        .gap_1()
1913                        .child(ui::Divider::horizontal())
1914                        .child(restore_checkpoint_button)
1915                        .child(ui::Divider::horizontal()),
1916                )
1917            })
1918            .when(is_first_message, |parent| {
1919                parent.child(self.render_rules_item(cx))
1920            })
1921            .child(styled_message)
1922            .when(!needs_confirmation && generating_label.is_some(), |this| {
1923                this.child(
1924                    h_flex()
1925                        .h_8()
1926                        .mt_2()
1927                        .mb_4()
1928                        .ml_4()
1929                        .py_1p5()
1930                        .child(generating_label.unwrap()),
1931                )
1932            })
1933            .when(show_feedback, move |parent| {
1934                parent.child(feedback_items).when_some(
1935                    self.open_feedback_editors.get(&message_id),
1936                    move |parent, feedback_editor| {
1937                        let focus_handle = feedback_editor.focus_handle(cx);
1938                        parent.child(
1939                            v_flex()
1940                                .key_context("AgentFeedbackMessageEditor")
1941                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1942                                    this.open_feedback_editors.remove(&message_id);
1943                                    cx.notify();
1944                                }))
1945                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1946                                    this.submit_feedback_message(message_id, cx);
1947                                    cx.notify();
1948                                }))
1949                                .on_action(cx.listener(Self::confirm_editing_message))
1950                                .mb_2()
1951                                .mx_4()
1952                                .p_2()
1953                                .rounded_md()
1954                                .border_1()
1955                                .border_color(cx.theme().colors().border)
1956                                .bg(cx.theme().colors().editor_background)
1957                                .child(feedback_editor.clone())
1958                                .child(
1959                                    h_flex()
1960                                        .gap_1()
1961                                        .justify_end()
1962                                        .child(
1963                                            Button::new("dismiss-feedback-message", "Cancel")
1964                                                .label_size(LabelSize::Small)
1965                                                .key_binding(
1966                                                    KeyBinding::for_action_in(
1967                                                        &menu::Cancel,
1968                                                        &focus_handle,
1969                                                        window,
1970                                                        cx,
1971                                                    )
1972                                                    .map(|kb| kb.size(rems_from_px(10.))),
1973                                                )
1974                                                .on_click(cx.listener(
1975                                                    move |this, _, _window, cx| {
1976                                                        this.open_feedback_editors
1977                                                            .remove(&message_id);
1978                                                        cx.notify();
1979                                                    },
1980                                                )),
1981                                        )
1982                                        .child(
1983                                            Button::new(
1984                                                "submit-feedback-message",
1985                                                "Share Feedback",
1986                                            )
1987                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1988                                            .label_size(LabelSize::Small)
1989                                            .key_binding(
1990                                                KeyBinding::for_action_in(
1991                                                    &menu::Confirm,
1992                                                    &focus_handle,
1993                                                    window,
1994                                                    cx,
1995                                                )
1996                                                .map(|kb| kb.size(rems_from_px(10.))),
1997                                            )
1998                                            .on_click(
1999                                                cx.listener(move |this, _, _window, cx| {
2000                                                    this.submit_feedback_message(message_id, cx);
2001                                                    cx.notify()
2002                                                }),
2003                                            ),
2004                                        ),
2005                                ),
2006                        )
2007                    },
2008                )
2009            })
2010            .when(after_editing_message, |parent| {
2011                // Backdrop to dim out the whole thread below the editing user message
2012                parent.relative().child(
2013                    div()
2014                        .occlude()
2015                        .absolute()
2016                        .inset_0()
2017                        .size_full()
2018                        .bg(panel_background)
2019                        .opacity(0.8),
2020                )
2021            })
2022            .into_any()
2023    }
2024
2025    fn render_message_content(
2026        &self,
2027        message_id: MessageId,
2028        rendered_message: &RenderedMessage,
2029        has_tool_uses: bool,
2030        workspace: WeakEntity<Workspace>,
2031        window: &Window,
2032        cx: &Context<Self>,
2033    ) -> impl IntoElement {
2034        let is_last_message = self.messages.last() == Some(&message_id);
2035        let is_generating = self.thread.read(cx).is_generating();
2036        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2037            rendered_message
2038                .segments
2039                .iter()
2040                .enumerate()
2041                .next_back()
2042                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2043                .map(|(index, _)| index)
2044        } else {
2045            None
2046        };
2047
2048        let message_role = self
2049            .thread
2050            .read(cx)
2051            .message(message_id)
2052            .map(|m| m.role)
2053            .unwrap_or(Role::User);
2054
2055        let is_assistant_message = message_role == Role::Assistant;
2056        let is_user_message = message_role == Role::User;
2057
2058        v_flex()
2059            .text_ui(cx)
2060            .gap_2()
2061            .when(is_user_message, |this| this.text_xs())
2062            .children(
2063                rendered_message.segments.iter().enumerate().map(
2064                    |(index, segment)| match segment {
2065                        RenderedMessageSegment::Thinking {
2066                            content,
2067                            scroll_handle,
2068                        } => self
2069                            .render_message_thinking_segment(
2070                                message_id,
2071                                index,
2072                                content.clone(),
2073                                &scroll_handle,
2074                                Some(index) == pending_thinking_segment_index,
2075                                window,
2076                                cx,
2077                            )
2078                            .into_any_element(),
2079                        RenderedMessageSegment::Text(markdown) => {
2080                            let markdown_element = MarkdownElement::new(
2081                                markdown.clone(),
2082                                if is_user_message {
2083                                    let mut style = default_markdown_style(window, cx);
2084                                    let mut text_style = window.text_style();
2085                                    let theme_settings = ThemeSettings::get_global(cx);
2086
2087                                    let buffer_font = theme_settings.buffer_font.family.clone();
2088                                    let buffer_font_size = TextSize::Small.rems(cx);
2089
2090                                    text_style.refine(&TextStyleRefinement {
2091                                        font_family: Some(buffer_font),
2092                                        font_size: Some(buffer_font_size.into()),
2093                                        ..Default::default()
2094                                    });
2095
2096                                    style.base_text_style = text_style;
2097                                    style
2098                                } else {
2099                                    default_markdown_style(window, cx)
2100                                },
2101                            );
2102
2103                            let markdown_element = if is_assistant_message {
2104                                markdown_element.code_block_renderer(
2105                                    markdown::CodeBlockRenderer::Custom {
2106                                        render: Arc::new({
2107                                            let workspace = workspace.clone();
2108                                            let active_thread = cx.entity();
2109                                            move |kind,
2110                                                  parsed_markdown,
2111                                                  range,
2112                                                  metadata,
2113                                                  window,
2114                                                  cx| {
2115                                                render_markdown_code_block(
2116                                                    message_id,
2117                                                    range.start,
2118                                                    kind,
2119                                                    parsed_markdown,
2120                                                    metadata,
2121                                                    active_thread.clone(),
2122                                                    workspace.clone(),
2123                                                    window,
2124                                                    cx,
2125                                                )
2126                                            }
2127                                        }),
2128                                        transform: Some(Arc::new({
2129                                            let active_thread = cx.entity();
2130                                            let editor_bg = cx.theme().colors().editor_background;
2131
2132                                            move |el, range, metadata, _, cx| {
2133                                                let is_expanded = active_thread
2134                                                    .read(cx)
2135                                                    .expanded_code_blocks
2136                                                    .get(&(message_id, range.start))
2137                                                    .copied()
2138                                                    .unwrap_or(true);
2139
2140                                                if is_expanded
2141                                                    || metadata.line_count
2142                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2143                                                {
2144                                                    return el;
2145                                                }
2146                                                el.child(
2147                                                    div()
2148                                                        .absolute()
2149                                                        .bottom_0()
2150                                                        .left_0()
2151                                                        .w_full()
2152                                                        .h_1_4()
2153                                                        .rounded_b_lg()
2154                                                        .bg(linear_gradient(
2155                                                            0.,
2156                                                            linear_color_stop(editor_bg, 0.),
2157                                                            linear_color_stop(
2158                                                                editor_bg.opacity(0.),
2159                                                                1.,
2160                                                            ),
2161                                                        )),
2162                                                )
2163                                            }
2164                                        })),
2165                                    },
2166                                )
2167                            } else {
2168                                markdown_element.code_block_renderer(
2169                                    markdown::CodeBlockRenderer::Default {
2170                                        copy_button: false,
2171                                        border: true,
2172                                    },
2173                                )
2174                            };
2175
2176                            div()
2177                                .child(markdown_element.on_url_click({
2178                                    let workspace = self.workspace.clone();
2179                                    move |text, window, cx| {
2180                                        open_markdown_link(text, workspace.clone(), window, cx);
2181                                    }
2182                                }))
2183                                .into_any_element()
2184                        }
2185                    },
2186                ),
2187            )
2188    }
2189
2190    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2191        cx.theme().colors().border.opacity(0.5)
2192    }
2193
2194    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2195        cx.theme()
2196            .colors()
2197            .element_background
2198            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2199    }
2200
2201    fn render_message_thinking_segment(
2202        &self,
2203        message_id: MessageId,
2204        ix: usize,
2205        markdown: Entity<Markdown>,
2206        scroll_handle: &ScrollHandle,
2207        pending: bool,
2208        window: &Window,
2209        cx: &Context<Self>,
2210    ) -> impl IntoElement {
2211        let is_open = self
2212            .expanded_thinking_segments
2213            .get(&(message_id, ix))
2214            .copied()
2215            .unwrap_or_default();
2216
2217        let editor_bg = cx.theme().colors().panel_background;
2218
2219        div().map(|this| {
2220            if pending {
2221                this.v_flex()
2222                    .mt_neg_2()
2223                    .mb_1p5()
2224                    .child(
2225                        h_flex()
2226                            .group("disclosure-header")
2227                            .justify_between()
2228                            .child(
2229                                h_flex()
2230                                    .gap_1p5()
2231                                    .child(
2232                                        Icon::new(IconName::LightBulb)
2233                                            .size(IconSize::XSmall)
2234                                            .color(Color::Muted),
2235                                    )
2236                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2237                            )
2238                            .child(
2239                                h_flex()
2240                                    .gap_1()
2241                                    .child(
2242                                        div().visible_on_hover("disclosure-header").child(
2243                                            Disclosure::new("thinking-disclosure", is_open)
2244                                                .opened_icon(IconName::ChevronUp)
2245                                                .closed_icon(IconName::ChevronDown)
2246                                                .on_click(cx.listener({
2247                                                    move |this, _event, _window, _cx| {
2248                                                        let is_open = this
2249                                                            .expanded_thinking_segments
2250                                                            .entry((message_id, ix))
2251                                                            .or_insert(false);
2252
2253                                                        *is_open = !*is_open;
2254                                                    }
2255                                                })),
2256                                        ),
2257                                    )
2258                                    .child({
2259                                        Icon::new(IconName::ArrowCircle)
2260                                            .color(Color::Accent)
2261                                            .size(IconSize::Small)
2262                                            .with_animation(
2263                                                "arrow-circle",
2264                                                Animation::new(Duration::from_secs(2)).repeat(),
2265                                                |icon, delta| {
2266                                                    icon.transform(Transformation::rotate(
2267                                                        percentage(delta),
2268                                                    ))
2269                                                },
2270                                            )
2271                                    }),
2272                            ),
2273                    )
2274                    .when(!is_open, |this| {
2275                        let gradient_overlay = div()
2276                            .rounded_b_lg()
2277                            .h_full()
2278                            .absolute()
2279                            .w_full()
2280                            .bottom_0()
2281                            .left_0()
2282                            .bg(linear_gradient(
2283                                180.,
2284                                linear_color_stop(editor_bg, 1.),
2285                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2286                            ));
2287
2288                        this.child(
2289                            div()
2290                                .relative()
2291                                .bg(editor_bg)
2292                                .rounded_b_lg()
2293                                .mt_2()
2294                                .pl_4()
2295                                .child(
2296                                    div()
2297                                        .id(("thinking-content", ix))
2298                                        .max_h_20()
2299                                        .track_scroll(scroll_handle)
2300                                        .text_ui_sm(cx)
2301                                        .overflow_hidden()
2302                                        .child(
2303                                            MarkdownElement::new(
2304                                                markdown.clone(),
2305                                                default_markdown_style(window, cx),
2306                                            )
2307                                            .on_url_click({
2308                                                let workspace = self.workspace.clone();
2309                                                move |text, window, cx| {
2310                                                    open_markdown_link(
2311                                                        text,
2312                                                        workspace.clone(),
2313                                                        window,
2314                                                        cx,
2315                                                    );
2316                                                }
2317                                            }),
2318                                        ),
2319                                )
2320                                .child(gradient_overlay),
2321                        )
2322                    })
2323                    .when(is_open, |this| {
2324                        this.child(
2325                            div()
2326                                .id(("thinking-content", ix))
2327                                .h_full()
2328                                .bg(editor_bg)
2329                                .text_ui_sm(cx)
2330                                .child(
2331                                    MarkdownElement::new(
2332                                        markdown.clone(),
2333                                        default_markdown_style(window, cx),
2334                                    )
2335                                    .on_url_click({
2336                                        let workspace = self.workspace.clone();
2337                                        move |text, window, cx| {
2338                                            open_markdown_link(text, workspace.clone(), window, cx);
2339                                        }
2340                                    }),
2341                                ),
2342                        )
2343                    })
2344            } else {
2345                this.v_flex()
2346                    .mt_neg_2()
2347                    .child(
2348                        h_flex()
2349                            .group("disclosure-header")
2350                            .pr_1()
2351                            .justify_between()
2352                            .opacity(0.8)
2353                            .hover(|style| style.opacity(1.))
2354                            .child(
2355                                h_flex()
2356                                    .gap_1p5()
2357                                    .child(
2358                                        Icon::new(IconName::LightBulb)
2359                                            .size(IconSize::XSmall)
2360                                            .color(Color::Muted),
2361                                    )
2362                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2363                            )
2364                            .child(
2365                                div().visible_on_hover("disclosure-header").child(
2366                                    Disclosure::new("thinking-disclosure", is_open)
2367                                        .opened_icon(IconName::ChevronUp)
2368                                        .closed_icon(IconName::ChevronDown)
2369                                        .on_click(cx.listener({
2370                                            move |this, _event, _window, _cx| {
2371                                                let is_open = this
2372                                                    .expanded_thinking_segments
2373                                                    .entry((message_id, ix))
2374                                                    .or_insert(false);
2375
2376                                                *is_open = !*is_open;
2377                                            }
2378                                        })),
2379                                ),
2380                            ),
2381                    )
2382                    .child(
2383                        div()
2384                            .id(("thinking-content", ix))
2385                            .relative()
2386                            .mt_1p5()
2387                            .ml_1p5()
2388                            .pl_2p5()
2389                            .border_l_1()
2390                            .border_color(cx.theme().colors().border_variant)
2391                            .text_ui_sm(cx)
2392                            .when(is_open, |this| {
2393                                this.child(
2394                                    MarkdownElement::new(
2395                                        markdown.clone(),
2396                                        default_markdown_style(window, cx),
2397                                    )
2398                                    .on_url_click({
2399                                        let workspace = self.workspace.clone();
2400                                        move |text, window, cx| {
2401                                            open_markdown_link(text, workspace.clone(), window, cx);
2402                                        }
2403                                    }),
2404                                )
2405                            }),
2406                    )
2407            }
2408        })
2409    }
2410
2411    fn render_tool_use(
2412        &self,
2413        tool_use: ToolUse,
2414        window: &mut Window,
2415        workspace: WeakEntity<Workspace>,
2416        cx: &mut Context<Self>,
2417    ) -> impl IntoElement + use<> {
2418        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2419            return card.render(&tool_use.status, window, workspace, cx);
2420        }
2421
2422        let is_open = self
2423            .expanded_tool_uses
2424            .get(&tool_use.id)
2425            .copied()
2426            .unwrap_or_default();
2427
2428        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2429
2430        let fs = self
2431            .workspace
2432            .upgrade()
2433            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2434        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2435        let needs_confirmation_tools = tool_use.needs_confirmation;
2436
2437        let status_icons = div().child(match &tool_use.status {
2438            ToolUseStatus::NeedsConfirmation => {
2439                let icon = Icon::new(IconName::Warning)
2440                    .color(Color::Warning)
2441                    .size(IconSize::Small);
2442                icon.into_any_element()
2443            }
2444            ToolUseStatus::Pending
2445            | ToolUseStatus::InputStillStreaming
2446            | ToolUseStatus::Running => {
2447                let icon = Icon::new(IconName::ArrowCircle)
2448                    .color(Color::Accent)
2449                    .size(IconSize::Small);
2450                icon.with_animation(
2451                    "arrow-circle",
2452                    Animation::new(Duration::from_secs(2)).repeat(),
2453                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2454                )
2455                .into_any_element()
2456            }
2457            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2458            ToolUseStatus::Error(_) => {
2459                let icon = Icon::new(IconName::Close)
2460                    .color(Color::Error)
2461                    .size(IconSize::Small);
2462                icon.into_any_element()
2463            }
2464        });
2465
2466        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2467        let results_content_container = || v_flex().p_2().gap_0p5();
2468
2469        let results_content = v_flex()
2470            .gap_1()
2471            .child(
2472                results_content_container()
2473                    .child(
2474                        Label::new("Input")
2475                            .size(LabelSize::XSmall)
2476                            .color(Color::Muted)
2477                            .buffer_font(cx),
2478                    )
2479                    .child(
2480                        div()
2481                            .w_full()
2482                            .text_ui_sm(cx)
2483                            .children(rendered_tool_use.as_ref().map(|rendered| {
2484                                MarkdownElement::new(
2485                                    rendered.input.clone(),
2486                                    tool_use_markdown_style(window, cx),
2487                                )
2488                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2489                                    copy_button: false,
2490                                    border: false,
2491                                })
2492                                .on_url_click({
2493                                    let workspace = self.workspace.clone();
2494                                    move |text, window, cx| {
2495                                        open_markdown_link(text, workspace.clone(), window, cx);
2496                                    }
2497                                })
2498                            })),
2499                    ),
2500            )
2501            .map(|container| match tool_use.status {
2502                ToolUseStatus::Finished(_) => container.child(
2503                    results_content_container()
2504                        .border_t_1()
2505                        .border_color(self.tool_card_border_color(cx))
2506                        .child(
2507                            Label::new("Result")
2508                                .size(LabelSize::XSmall)
2509                                .color(Color::Muted)
2510                                .buffer_font(cx),
2511                        )
2512                        .child(div().w_full().text_ui_sm(cx).children(
2513                            rendered_tool_use.as_ref().map(|rendered| {
2514                                MarkdownElement::new(
2515                                    rendered.output.clone(),
2516                                    tool_use_markdown_style(window, cx),
2517                                )
2518                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2519                                    copy_button: false,
2520                                    border: false,
2521                                })
2522                                .on_url_click({
2523                                    let workspace = self.workspace.clone();
2524                                    move |text, window, cx| {
2525                                        open_markdown_link(text, workspace.clone(), window, cx);
2526                                    }
2527                                })
2528                                .into_any_element()
2529                            }),
2530                        )),
2531                ),
2532                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2533                    results_content_container()
2534                        .border_t_1()
2535                        .border_color(self.tool_card_border_color(cx))
2536                        .child(
2537                            h_flex()
2538                                .gap_1()
2539                                .child(
2540                                    Icon::new(IconName::ArrowCircle)
2541                                        .size(IconSize::Small)
2542                                        .color(Color::Accent)
2543                                        .with_animation(
2544                                            "arrow-circle",
2545                                            Animation::new(Duration::from_secs(2)).repeat(),
2546                                            |icon, delta| {
2547                                                icon.transform(Transformation::rotate(percentage(
2548                                                    delta,
2549                                                )))
2550                                            },
2551                                        ),
2552                                )
2553                                .child(
2554                                    Label::new("Running…")
2555                                        .size(LabelSize::XSmall)
2556                                        .color(Color::Muted)
2557                                        .buffer_font(cx),
2558                                ),
2559                        ),
2560                ),
2561                ToolUseStatus::Error(_) => container.child(
2562                    results_content_container()
2563                        .border_t_1()
2564                        .border_color(self.tool_card_border_color(cx))
2565                        .child(
2566                            Label::new("Error")
2567                                .size(LabelSize::XSmall)
2568                                .color(Color::Muted)
2569                                .buffer_font(cx),
2570                        )
2571                        .child(
2572                            div()
2573                                .text_ui_sm(cx)
2574                                .children(rendered_tool_use.as_ref().map(|rendered| {
2575                                    MarkdownElement::new(
2576                                        rendered.output.clone(),
2577                                        tool_use_markdown_style(window, cx),
2578                                    )
2579                                    .on_url_click({
2580                                        let workspace = self.workspace.clone();
2581                                        move |text, window, cx| {
2582                                            open_markdown_link(text, workspace.clone(), window, cx);
2583                                        }
2584                                    })
2585                                    .into_any_element()
2586                                })),
2587                        ),
2588                ),
2589                ToolUseStatus::Pending => container,
2590                ToolUseStatus::NeedsConfirmation => container.child(
2591                    results_content_container()
2592                        .border_t_1()
2593                        .border_color(self.tool_card_border_color(cx))
2594                        .child(
2595                            Label::new("Asking Permission")
2596                                .size(LabelSize::Small)
2597                                .color(Color::Muted)
2598                                .buffer_font(cx),
2599                        ),
2600                ),
2601            });
2602
2603        let gradient_overlay = |color: Hsla| {
2604            div()
2605                .h_full()
2606                .absolute()
2607                .w_12()
2608                .bottom_0()
2609                .map(|element| {
2610                    if is_status_finished {
2611                        element.right_6()
2612                    } else {
2613                        element.right(px(44.))
2614                    }
2615                })
2616                .bg(linear_gradient(
2617                    90.,
2618                    linear_color_stop(color, 1.),
2619                    linear_color_stop(color.opacity(0.2), 0.),
2620                ))
2621        };
2622
2623        v_flex().gap_1().mb_2().map(|element| {
2624            if !needs_confirmation_tools {
2625                element.child(
2626                    v_flex()
2627                        .child(
2628                            h_flex()
2629                                .group("disclosure-header")
2630                                .relative()
2631                                .gap_1p5()
2632                                .justify_between()
2633                                .opacity(0.8)
2634                                .hover(|style| style.opacity(1.))
2635                                .when(!is_status_finished, |this| this.pr_2())
2636                                .child(
2637                                    h_flex()
2638                                        .id("tool-label-container")
2639                                        .gap_1p5()
2640                                        .max_w_full()
2641                                        .overflow_x_scroll()
2642                                        .child(
2643                                            Icon::new(tool_use.icon)
2644                                                .size(IconSize::XSmall)
2645                                                .color(Color::Muted),
2646                                        )
2647                                        .child(
2648                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2649                                                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| {
2650                                                    open_markdown_link(text, workspace.clone(), window, cx);
2651                                                }}))
2652                                            ),
2653                                        ),
2654                                )
2655                                .child(
2656                                    h_flex()
2657                                        .gap_1()
2658                                        .child(
2659                                            div().visible_on_hover("disclosure-header").child(
2660                                                Disclosure::new("tool-use-disclosure", is_open)
2661                                                    .opened_icon(IconName::ChevronUp)
2662                                                    .closed_icon(IconName::ChevronDown)
2663                                                    .on_click(cx.listener({
2664                                                        let tool_use_id = tool_use.id.clone();
2665                                                        move |this, _event, _window, _cx| {
2666                                                            let is_open = this
2667                                                                .expanded_tool_uses
2668                                                                .entry(tool_use_id.clone())
2669                                                                .or_insert(false);
2670
2671                                                            *is_open = !*is_open;
2672                                                        }
2673                                                    })),
2674                                            ),
2675                                        )
2676                                        .child(status_icons),
2677                                )
2678                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2679                        )
2680                        .map(|parent| {
2681                            if !is_open {
2682                                return parent;
2683                            }
2684
2685                            parent.child(
2686                                v_flex()
2687                                    .mt_1()
2688                                    .border_1()
2689                                    .border_color(self.tool_card_border_color(cx))
2690                                    .bg(cx.theme().colors().editor_background)
2691                                    .rounded_lg()
2692                                    .child(results_content),
2693                            )
2694                        }),
2695                )
2696            } else {
2697                v_flex()
2698                    .mb_2()
2699                    .rounded_lg()
2700                    .border_1()
2701                    .border_color(self.tool_card_border_color(cx))
2702                    .overflow_hidden()
2703                    .child(
2704                        h_flex()
2705                            .group("disclosure-header")
2706                            .relative()
2707                            .justify_between()
2708                            .py_1()
2709                            .map(|element| {
2710                                if is_status_finished {
2711                                    element.pl_2().pr_0p5()
2712                                } else {
2713                                    element.px_2()
2714                                }
2715                            })
2716                            .bg(self.tool_card_header_bg(cx))
2717                            .map(|element| {
2718                                if is_open {
2719                                    element.border_b_1().rounded_t_md()
2720                                } else if needs_confirmation {
2721                                    element.rounded_t_md()
2722                                } else {
2723                                    element.rounded_md()
2724                                }
2725                            })
2726                            .border_color(self.tool_card_border_color(cx))
2727                            .child(
2728                                h_flex()
2729                                    .id("tool-label-container")
2730                                    .gap_1p5()
2731                                    .max_w_full()
2732                                    .overflow_x_scroll()
2733                                    .child(
2734                                        Icon::new(tool_use.icon)
2735                                            .size(IconSize::XSmall)
2736                                            .color(Color::Muted),
2737                                    )
2738                                    .child(
2739                                        h_flex().pr_8().text_ui_sm(cx).children(
2740                                            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| {
2741                                                open_markdown_link(text, workspace.clone(), window, cx);
2742                                            }}))
2743                                        ),
2744                                    ),
2745                            )
2746                            .child(
2747                                h_flex()
2748                                    .gap_1()
2749                                    .child(
2750                                        div().visible_on_hover("disclosure-header").child(
2751                                            Disclosure::new("tool-use-disclosure", is_open)
2752                                                .opened_icon(IconName::ChevronUp)
2753                                                .closed_icon(IconName::ChevronDown)
2754                                                .on_click(cx.listener({
2755                                                    let tool_use_id = tool_use.id.clone();
2756                                                    move |this, _event, _window, _cx| {
2757                                                        let is_open = this
2758                                                            .expanded_tool_uses
2759                                                            .entry(tool_use_id.clone())
2760                                                            .or_insert(false);
2761
2762                                                        *is_open = !*is_open;
2763                                                    }
2764                                                })),
2765                                        ),
2766                                    )
2767                                    .child(status_icons),
2768                            )
2769                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2770                    )
2771                    .map(|parent| {
2772                        if !is_open {
2773                            return parent;
2774                        }
2775
2776                        parent.child(
2777                            v_flex()
2778                                .bg(cx.theme().colors().editor_background)
2779                                .map(|element| {
2780                                    if  needs_confirmation {
2781                                        element.rounded_none()
2782                                    } else {
2783                                        element.rounded_b_lg()
2784                                    }
2785                                })
2786                                .child(results_content),
2787                        )
2788                    })
2789                    .when(needs_confirmation, |this| {
2790                        this.child(
2791                            h_flex()
2792                                .py_1()
2793                                .pl_2()
2794                                .pr_1()
2795                                .gap_1()
2796                                .justify_between()
2797                                .bg(cx.theme().colors().editor_background)
2798                                .border_t_1()
2799                                .border_color(self.tool_card_border_color(cx))
2800                                .rounded_b_lg()
2801                                .child(
2802                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
2803                                )
2804                                .child(
2805                                    h_flex()
2806                                        .gap_0p5()
2807                                        .child({
2808                                            let tool_id = tool_use.id.clone();
2809                                            Button::new(
2810                                                "always-allow-tool-action",
2811                                                "Always Allow",
2812                                            )
2813                                            .label_size(LabelSize::Small)
2814                                            .icon(IconName::CheckDouble)
2815                                            .icon_position(IconPosition::Start)
2816                                            .icon_size(IconSize::Small)
2817                                            .icon_color(Color::Success)
2818                                            .tooltip(move |window, cx|  {
2819                                                Tooltip::with_meta(
2820                                                    "Never ask for permission",
2821                                                    None,
2822                                                    "Restore the original behavior in your Agent Panel settings",
2823                                                    window,
2824                                                    cx,
2825                                                )
2826                                            })
2827                                            .on_click(cx.listener(
2828                                                move |this, event, window, cx| {
2829                                                    if let Some(fs) = fs.clone() {
2830                                                        update_settings_file::<AssistantSettings>(
2831                                                            fs.clone(),
2832                                                            cx,
2833                                                            |settings, _| {
2834                                                                settings.set_always_allow_tool_actions(true);
2835                                                            },
2836                                                        );
2837                                                    }
2838                                                    this.handle_allow_tool(
2839                                                        tool_id.clone(),
2840                                                        event,
2841                                                        window,
2842                                                        cx,
2843                                                    )
2844                                                },
2845                                            ))
2846                                        })
2847                                        .child(ui::Divider::vertical())
2848                                        .child({
2849                                            let tool_id = tool_use.id.clone();
2850                                            Button::new("allow-tool-action", "Allow")
2851                                                .label_size(LabelSize::Small)
2852                                                .icon(IconName::Check)
2853                                                .icon_position(IconPosition::Start)
2854                                                .icon_size(IconSize::Small)
2855                                                .icon_color(Color::Success)
2856                                                .on_click(cx.listener(
2857                                                    move |this, event, window, cx| {
2858                                                        this.handle_allow_tool(
2859                                                            tool_id.clone(),
2860                                                            event,
2861                                                            window,
2862                                                            cx,
2863                                                        )
2864                                                    },
2865                                                ))
2866                                        })
2867                                        .child({
2868                                            let tool_id = tool_use.id.clone();
2869                                            let tool_name: Arc<str> = tool_use.name.into();
2870                                            Button::new("deny-tool", "Deny")
2871                                                .label_size(LabelSize::Small)
2872                                                .icon(IconName::Close)
2873                                                .icon_position(IconPosition::Start)
2874                                                .icon_size(IconSize::Small)
2875                                                .icon_color(Color::Error)
2876                                                .on_click(cx.listener(
2877                                                    move |this, event, window, cx| {
2878                                                        this.handle_deny_tool(
2879                                                            tool_id.clone(),
2880                                                            tool_name.clone(),
2881                                                            event,
2882                                                            window,
2883                                                            cx,
2884                                                        )
2885                                                    },
2886                                                ))
2887                                        }),
2888                                ),
2889                        )
2890                    })
2891            }
2892        }).into_any_element()
2893    }
2894
2895    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
2896        let project_context = self.thread.read(cx).project_context();
2897        let project_context = project_context.borrow();
2898        let Some(project_context) = project_context.as_ref() else {
2899            return div().into_any();
2900        };
2901
2902        let user_rules_text = if project_context.user_rules.is_empty() {
2903            None
2904        } else if project_context.user_rules.len() == 1 {
2905            let user_rules = &project_context.user_rules[0];
2906
2907            match user_rules.title.as_ref() {
2908                Some(title) => Some(format!("Using \"{title}\" user rule")),
2909                None => Some("Using user rule".into()),
2910            }
2911        } else {
2912            Some(format!(
2913                "Using {} user rules",
2914                project_context.user_rules.len()
2915            ))
2916        };
2917
2918        let first_user_rules_id = project_context
2919            .user_rules
2920            .first()
2921            .map(|user_rules| user_rules.uuid.0);
2922
2923        let rules_files = project_context
2924            .worktrees
2925            .iter()
2926            .filter_map(|worktree| worktree.rules_file.as_ref())
2927            .collect::<Vec<_>>();
2928
2929        let rules_file_text = match rules_files.as_slice() {
2930            &[] => None,
2931            &[rules_file] => Some(format!(
2932                "Using project {:?} file",
2933                rules_file.path_in_worktree
2934            )),
2935            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
2936        };
2937
2938        if user_rules_text.is_none() && rules_file_text.is_none() {
2939            return div().into_any();
2940        }
2941
2942        v_flex()
2943            .pt_2()
2944            .px_2p5()
2945            .gap_1()
2946            .when_some(user_rules_text, |parent, user_rules_text| {
2947                parent.child(
2948                    h_flex()
2949                        .w_full()
2950                        .child(
2951                            Icon::new(RULES_ICON)
2952                                .size(IconSize::XSmall)
2953                                .color(Color::Disabled),
2954                        )
2955                        .child(
2956                            Label::new(user_rules_text)
2957                                .size(LabelSize::XSmall)
2958                                .color(Color::Muted)
2959                                .truncate()
2960                                .buffer_font(cx)
2961                                .ml_1p5()
2962                                .mr_0p5(),
2963                        )
2964                        .child(
2965                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
2966                                .shape(ui::IconButtonShape::Square)
2967                                .icon_size(IconSize::XSmall)
2968                                .icon_color(Color::Ignored)
2969                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
2970                                .tooltip(Tooltip::text("View User Rules"))
2971                                .on_click(move |_event, window, cx| {
2972                                    window.dispatch_action(
2973                                        Box::new(OpenRulesLibrary {
2974                                            prompt_to_select: first_user_rules_id,
2975                                        }),
2976                                        cx,
2977                                    )
2978                                }),
2979                        ),
2980                )
2981            })
2982            .when_some(rules_file_text, |parent, rules_file_text| {
2983                parent.child(
2984                    h_flex()
2985                        .w_full()
2986                        .child(
2987                            Icon::new(IconName::File)
2988                                .size(IconSize::XSmall)
2989                                .color(Color::Disabled),
2990                        )
2991                        .child(
2992                            Label::new(rules_file_text)
2993                                .size(LabelSize::XSmall)
2994                                .color(Color::Muted)
2995                                .buffer_font(cx)
2996                                .ml_1p5()
2997                                .mr_0p5(),
2998                        )
2999                        .child(
3000                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3001                                .shape(ui::IconButtonShape::Square)
3002                                .icon_size(IconSize::XSmall)
3003                                .icon_color(Color::Ignored)
3004                                .on_click(cx.listener(Self::handle_open_rules))
3005                                .tooltip(Tooltip::text("View Rules")),
3006                        ),
3007                )
3008            })
3009            .into_any()
3010    }
3011
3012    fn handle_allow_tool(
3013        &mut self,
3014        tool_use_id: LanguageModelToolUseId,
3015        _: &ClickEvent,
3016        window: &mut Window,
3017        cx: &mut Context<Self>,
3018    ) {
3019        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3020            .thread
3021            .read(cx)
3022            .pending_tool(&tool_use_id)
3023            .map(|tool_use| tool_use.status.clone())
3024        {
3025            self.thread.update(cx, |thread, cx| {
3026                thread.run_tool(
3027                    c.tool_use_id.clone(),
3028                    c.ui_text.clone(),
3029                    c.input.clone(),
3030                    &c.messages,
3031                    c.tool.clone(),
3032                    Some(window.window_handle()),
3033                    cx,
3034                );
3035            });
3036        }
3037    }
3038
3039    fn handle_deny_tool(
3040        &mut self,
3041        tool_use_id: LanguageModelToolUseId,
3042        tool_name: Arc<str>,
3043        _: &ClickEvent,
3044        window: &mut Window,
3045        cx: &mut Context<Self>,
3046    ) {
3047        let window_handle = window.window_handle();
3048        self.thread.update(cx, |thread, cx| {
3049            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3050        });
3051    }
3052
3053    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3054        let project_context = self.thread.read(cx).project_context();
3055        let project_context = project_context.borrow();
3056        let Some(project_context) = project_context.as_ref() else {
3057            return;
3058        };
3059
3060        let project_entry_ids = project_context
3061            .worktrees
3062            .iter()
3063            .flat_map(|worktree| worktree.rules_file.as_ref())
3064            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3065            .collect::<Vec<_>>();
3066
3067        self.workspace
3068            .update(cx, move |workspace, cx| {
3069                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3070                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3071                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3072                let project = workspace.project().read(cx);
3073                let project_paths = project_entry_ids
3074                    .into_iter()
3075                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3076                    .collect::<Vec<_>>();
3077                for project_path in project_paths {
3078                    workspace
3079                        .open_path(project_path, None, true, window, cx)
3080                        .detach_and_log_err(cx);
3081                }
3082            })
3083            .ok();
3084    }
3085
3086    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3087        for window in self.notifications.drain(..) {
3088            window
3089                .update(cx, |_, window, _| {
3090                    window.remove_window();
3091                })
3092                .ok();
3093
3094            self.notification_subscriptions.remove(&window);
3095        }
3096    }
3097
3098    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3099        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3100            return None;
3101        }
3102
3103        Some(
3104            div()
3105                .occlude()
3106                .id("active-thread-scrollbar")
3107                .on_mouse_move(cx.listener(|_, _, _, cx| {
3108                    cx.notify();
3109                    cx.stop_propagation()
3110                }))
3111                .on_hover(|_, _, cx| {
3112                    cx.stop_propagation();
3113                })
3114                .on_any_mouse_down(|_, _, cx| {
3115                    cx.stop_propagation();
3116                })
3117                .on_mouse_up(
3118                    MouseButton::Left,
3119                    cx.listener(|_, _, _, cx| {
3120                        cx.stop_propagation();
3121                    }),
3122                )
3123                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3124                    cx.notify();
3125                }))
3126                .h_full()
3127                .absolute()
3128                .right_1()
3129                .top_1()
3130                .bottom_0()
3131                .w(px(12.))
3132                .cursor_default()
3133                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3134        )
3135    }
3136
3137    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3138        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3139        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3140            cx.background_executor()
3141                .timer(SCROLLBAR_SHOW_INTERVAL)
3142                .await;
3143            thread
3144                .update(cx, |thread, cx| {
3145                    if !thread.scrollbar_state.is_dragging() {
3146                        thread.show_scrollbar = false;
3147                        cx.notify();
3148                    }
3149                })
3150                .log_err();
3151        }))
3152    }
3153}
3154
3155pub enum ActiveThreadEvent {
3156    EditingMessageTokenCountChanged,
3157}
3158
3159impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3160
3161impl Render for ActiveThread {
3162    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3163        v_flex()
3164            .size_full()
3165            .relative()
3166            .on_mouse_move(cx.listener(|this, _, _, cx| {
3167                this.show_scrollbar = true;
3168                this.hide_scrollbar_later(cx);
3169                cx.notify();
3170            }))
3171            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3172                this.show_scrollbar = true;
3173                this.hide_scrollbar_later(cx);
3174                cx.notify();
3175            }))
3176            .on_mouse_up(
3177                MouseButton::Left,
3178                cx.listener(|this, _, _, cx| {
3179                    this.hide_scrollbar_later(cx);
3180                }),
3181            )
3182            .child(list(self.list_state.clone()).flex_grow())
3183            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3184                this.child(scrollbar)
3185            })
3186    }
3187}
3188
3189pub(crate) fn open_context(
3190    context: &AgentContextHandle,
3191    workspace: Entity<Workspace>,
3192    window: &mut Window,
3193    cx: &mut App,
3194) {
3195    match context {
3196        AgentContextHandle::File(file_context) => {
3197            if let Some(project_path) = file_context.project_path(cx) {
3198                workspace.update(cx, |workspace, cx| {
3199                    workspace
3200                        .open_path(project_path, None, true, window, cx)
3201                        .detach_and_log_err(cx);
3202                });
3203            }
3204        }
3205
3206        AgentContextHandle::Directory(directory_context) => {
3207            let entry_id = directory_context.entry_id;
3208            workspace.update(cx, |workspace, cx| {
3209                workspace.project().update(cx, |_project, cx| {
3210                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3211                })
3212            })
3213        }
3214
3215        AgentContextHandle::Symbol(symbol_context) => {
3216            let buffer = symbol_context.buffer.read(cx);
3217            if let Some(project_path) = buffer.project_path(cx) {
3218                let snapshot = buffer.snapshot();
3219                let target_position = symbol_context.range.start.to_point(&snapshot);
3220                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3221                    .detach();
3222            }
3223        }
3224
3225        AgentContextHandle::Selection(selection_context) => {
3226            let buffer = selection_context.buffer.read(cx);
3227            if let Some(project_path) = buffer.project_path(cx) {
3228                let snapshot = buffer.snapshot();
3229                let target_position = selection_context.range.start.to_point(&snapshot);
3230
3231                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3232                    .detach();
3233            }
3234        }
3235
3236        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3237            cx.open_url(&fetched_url_context.url);
3238        }
3239
3240        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3241            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3242                panel.update(cx, |panel, cx| {
3243                    let thread_id = thread_context.thread.read(cx).id().clone();
3244                    panel
3245                        .open_thread(&thread_id, window, cx)
3246                        .detach_and_log_err(cx)
3247                });
3248            }
3249        }),
3250
3251        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3252            Box::new(OpenRulesLibrary {
3253                prompt_to_select: Some(rules_context.prompt_id.0),
3254            }),
3255            cx,
3256        ),
3257
3258        AgentContextHandle::Image(_) => {}
3259    }
3260}
3261
3262fn open_editor_at_position(
3263    project_path: project::ProjectPath,
3264    target_position: Point,
3265    workspace: &Entity<Workspace>,
3266    window: &mut Window,
3267    cx: &mut App,
3268) -> Task<()> {
3269    let open_task = workspace.update(cx, |workspace, cx| {
3270        workspace.open_path(project_path, None, true, window, cx)
3271    });
3272    window.spawn(cx, async move |cx| {
3273        if let Some(active_editor) = open_task
3274            .await
3275            .log_err()
3276            .and_then(|item| item.downcast::<Editor>())
3277        {
3278            active_editor
3279                .downgrade()
3280                .update_in(cx, |editor, window, cx| {
3281                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3282                })
3283                .log_err();
3284        }
3285    })
3286}