active_thread.rs

   1use crate::context::{AgentContext, 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::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::MarkdownString;
  47use workspace::{OpenOptions, 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                MarkdownString::code_block("json", tool_input).to_string(),
 886                cx,
 887            );
 888        });
 889        rendered.output.update(cx, |this, cx| {
 890            this.replace(tool_output, cx);
 891        });
 892    }
 893
 894    fn handle_thread_event(
 895        &mut self,
 896        _thread: &Entity<Thread>,
 897        event: &ThreadEvent,
 898        window: &mut Window,
 899        cx: &mut Context<Self>,
 900    ) {
 901        match event {
 902            ThreadEvent::ShowError(error) => {
 903                self.last_error = Some(error.clone());
 904            }
 905            ThreadEvent::UsageUpdated(usage) => {
 906                self.last_usage = Some(*usage);
 907            }
 908            ThreadEvent::StreamedCompletion
 909            | ThreadEvent::SummaryGenerated
 910            | ThreadEvent::SummaryChanged => {
 911                self.save_thread(cx);
 912            }
 913            ThreadEvent::Stopped(reason) => match reason {
 914                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 915                    let thread = self.thread.read(cx);
 916                    self.show_notification(
 917                        if thread.used_tools_since_last_user_message() {
 918                            "Finished running tools"
 919                        } else {
 920                            "New message"
 921                        },
 922                        IconName::ZedAssistant,
 923                        window,
 924                        cx,
 925                    );
 926                }
 927                _ => {}
 928            },
 929            ThreadEvent::ToolConfirmationNeeded => {
 930                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 931            }
 932            ThreadEvent::StreamedAssistantText(message_id, text) => {
 933                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 934                    rendered_message.append_text(text, cx);
 935                }
 936            }
 937            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 938                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 939                    rendered_message.append_thinking(text, cx);
 940                }
 941            }
 942            ThreadEvent::MessageAdded(message_id) => {
 943                if let Some(message_segments) = self
 944                    .thread
 945                    .read(cx)
 946                    .message(*message_id)
 947                    .map(|message| message.segments.clone())
 948                {
 949                    self.push_message(message_id, &message_segments, window, cx);
 950                }
 951
 952                self.save_thread(cx);
 953                cx.notify();
 954            }
 955            ThreadEvent::MessageEdited(message_id) => {
 956                if let Some(message_segments) = self
 957                    .thread
 958                    .read(cx)
 959                    .message(*message_id)
 960                    .map(|message| message.segments.clone())
 961                {
 962                    self.edited_message(message_id, &message_segments, window, cx);
 963                }
 964
 965                self.save_thread(cx);
 966                cx.notify();
 967            }
 968            ThreadEvent::MessageDeleted(message_id) => {
 969                self.deleted_message(message_id);
 970                self.save_thread(cx);
 971                cx.notify();
 972            }
 973            ThreadEvent::UsePendingTools { tool_uses } => {
 974                for tool_use in tool_uses {
 975                    self.render_tool_use_markdown(
 976                        tool_use.id.clone(),
 977                        tool_use.ui_text.clone(),
 978                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 979                        "".into(),
 980                        cx,
 981                    );
 982                }
 983            }
 984            ThreadEvent::StreamedToolUse {
 985                tool_use_id,
 986                ui_text,
 987                input,
 988            } => {
 989                self.render_tool_use_markdown(
 990                    tool_use_id.clone(),
 991                    ui_text.clone(),
 992                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
 993                    "".into(),
 994                    cx,
 995                );
 996            }
 997            ThreadEvent::ToolFinished {
 998                pending_tool_use, ..
 999            } => {
1000                if let Some(tool_use) = pending_tool_use {
1001                    self.render_tool_use_markdown(
1002                        tool_use.id.clone(),
1003                        tool_use.ui_text.clone(),
1004                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1005                        self.thread
1006                            .read(cx)
1007                            .output_for_tool(&tool_use.id)
1008                            .map(|output| output.clone().into())
1009                            .unwrap_or("".into()),
1010                        cx,
1011                    );
1012                }
1013            }
1014            ThreadEvent::CheckpointChanged => cx.notify(),
1015            ThreadEvent::ReceivedTextChunk => {}
1016            ThreadEvent::InvalidToolInput {
1017                tool_use_id,
1018                ui_text,
1019                invalid_input_json,
1020            } => {
1021                self.render_tool_use_markdown(
1022                    tool_use_id.clone(),
1023                    ui_text,
1024                    invalid_input_json,
1025                    self.thread
1026                        .read(cx)
1027                        .output_for_tool(tool_use_id)
1028                        .map(|output| output.clone().into())
1029                        .unwrap_or("".into()),
1030                    cx,
1031                );
1032            }
1033        }
1034    }
1035
1036    fn handle_rules_loading_error(
1037        &mut self,
1038        _thread_store: Entity<ThreadStore>,
1039        error: &RulesLoadingError,
1040        cx: &mut Context<Self>,
1041    ) {
1042        self.last_error = Some(ThreadError::Message {
1043            header: "Error loading rules file".into(),
1044            message: error.message.clone(),
1045        });
1046        cx.notify();
1047    }
1048
1049    fn show_notification(
1050        &mut self,
1051        caption: impl Into<SharedString>,
1052        icon: IconName,
1053        window: &mut Window,
1054        cx: &mut Context<ActiveThread>,
1055    ) {
1056        if window.is_window_active() || !self.notifications.is_empty() {
1057            return;
1058        }
1059
1060        let title = self
1061            .thread
1062            .read(cx)
1063            .summary()
1064            .unwrap_or("Agent Panel".into());
1065
1066        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1067            NotifyWhenAgentWaiting::PrimaryScreen => {
1068                if let Some(primary) = cx.primary_display() {
1069                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1070                }
1071            }
1072            NotifyWhenAgentWaiting::AllScreens => {
1073                let caption = caption.into();
1074                for screen in cx.displays() {
1075                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1076                }
1077            }
1078            NotifyWhenAgentWaiting::Never => {
1079                // Don't show anything
1080            }
1081        }
1082    }
1083
1084    fn pop_up(
1085        &mut self,
1086        icon: IconName,
1087        caption: SharedString,
1088        title: SharedString,
1089        window: &mut Window,
1090        screen: Rc<dyn PlatformDisplay>,
1091        cx: &mut Context<'_, ActiveThread>,
1092    ) {
1093        let options = AgentNotification::window_options(screen, cx);
1094
1095        let project_name = self.workspace.upgrade().and_then(|workspace| {
1096            workspace
1097                .read(cx)
1098                .project()
1099                .read(cx)
1100                .visible_worktrees(cx)
1101                .next()
1102                .map(|worktree| worktree.read(cx).root_name().to_string())
1103        });
1104
1105        if let Some(screen_window) = cx
1106            .open_window(options, |_, cx| {
1107                cx.new(|_| {
1108                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1109                })
1110            })
1111            .log_err()
1112        {
1113            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1114                self.notification_subscriptions
1115                    .entry(screen_window)
1116                    .or_insert_with(Vec::new)
1117                    .push(cx.subscribe_in(&pop_up, window, {
1118                        |this, _, event, window, cx| match event {
1119                            AgentNotificationEvent::Accepted => {
1120                                let handle = window.window_handle();
1121                                cx.activate(true);
1122
1123                                let workspace_handle = this.workspace.clone();
1124
1125                                // If there are multiple Zed windows, activate the correct one.
1126                                cx.defer(move |cx| {
1127                                    handle
1128                                        .update(cx, |_view, window, _cx| {
1129                                            window.activate_window();
1130
1131                                            if let Some(workspace) = workspace_handle.upgrade() {
1132                                                workspace.update(_cx, |workspace, cx| {
1133                                                    workspace
1134                                                        .focus_panel::<AssistantPanel>(window, cx);
1135                                                });
1136                                            }
1137                                        })
1138                                        .log_err();
1139                                });
1140
1141                                this.dismiss_notifications(cx);
1142                            }
1143                            AgentNotificationEvent::Dismissed => {
1144                                this.dismiss_notifications(cx);
1145                            }
1146                        }
1147                    }));
1148
1149                self.notifications.push(screen_window);
1150
1151                // If the user manually refocuses the original window, dismiss the popup.
1152                self.notification_subscriptions
1153                    .entry(screen_window)
1154                    .or_insert_with(Vec::new)
1155                    .push({
1156                        let pop_up_weak = pop_up.downgrade();
1157
1158                        cx.observe_window_activation(window, move |_, window, cx| {
1159                            if window.is_window_active() {
1160                                if let Some(pop_up) = pop_up_weak.upgrade() {
1161                                    pop_up.update(cx, |_, cx| {
1162                                        cx.emit(AgentNotificationEvent::Dismissed);
1163                                    });
1164                                }
1165                            }
1166                        })
1167                    });
1168            }
1169        }
1170    }
1171
1172    /// Spawns a task to save the active thread.
1173    ///
1174    /// Only one task to save the thread will be in flight at a time.
1175    fn save_thread(&mut self, cx: &mut Context<Self>) {
1176        let thread = self.thread.clone();
1177        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1178            let task = this
1179                .update(cx, |this, cx| {
1180                    this.thread_store
1181                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1182                })
1183                .ok();
1184
1185            if let Some(task) = task {
1186                task.await.log_err();
1187            }
1188        }));
1189    }
1190
1191    fn start_editing_message(
1192        &mut self,
1193        message_id: MessageId,
1194        message_segments: &[MessageSegment],
1195        window: &mut Window,
1196        cx: &mut Context<Self>,
1197    ) {
1198        // User message should always consist of a single text segment,
1199        // therefore we can skip returning early if it's not a text segment.
1200        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1201            return;
1202        };
1203
1204        let buffer = cx.new(|cx| {
1205            MultiBuffer::singleton(cx.new(|cx| Buffer::local(message_text.clone(), cx)), cx)
1206        });
1207        let editor = cx.new(|cx| {
1208            let mut editor = Editor::new(
1209                editor::EditorMode::AutoHeight { max_lines: 8 },
1210                buffer,
1211                None,
1212                window,
1213                cx,
1214            );
1215            editor.focus_handle(cx).focus(window);
1216            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1217            editor
1218        });
1219        let subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1220            EditorEvent::BufferEdited => {
1221                this.update_editing_message_token_count(true, cx);
1222            }
1223            _ => {}
1224        });
1225        self.editing_message = Some((
1226            message_id,
1227            EditMessageState {
1228                editor: editor.clone(),
1229                last_estimated_token_count: None,
1230                _subscription: subscription,
1231                _update_token_count_task: None,
1232            },
1233        ));
1234        self.update_editing_message_token_count(false, cx);
1235        cx.notify();
1236    }
1237
1238    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1239        let Some((message_id, state)) = self.editing_message.as_mut() else {
1240            return;
1241        };
1242
1243        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1244        state._update_token_count_task.take();
1245
1246        let Some(default_model) = LanguageModelRegistry::read_global(cx).default_model() else {
1247            state.last_estimated_token_count.take();
1248            return;
1249        };
1250
1251        let editor = state.editor.clone();
1252        let thread = self.thread.clone();
1253        let message_id = *message_id;
1254
1255        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1256            if debounce {
1257                cx.background_executor()
1258                    .timer(Duration::from_millis(200))
1259                    .await;
1260            }
1261
1262            let token_count = if let Some(task) = cx.update(|cx| {
1263                let Some(message) = thread.read(cx).message(message_id) else {
1264                    log::error!("Message that was being edited no longer exists");
1265                    return None;
1266                };
1267                let message_text = editor.read(cx).text(cx);
1268
1269                if message_text.is_empty() && message.loaded_context.is_empty() {
1270                    return None;
1271                }
1272
1273                let mut request_message = LanguageModelRequestMessage {
1274                    role: language_model::Role::User,
1275                    content: Vec::new(),
1276                    cache: false,
1277                };
1278
1279                message
1280                    .loaded_context
1281                    .add_to_request_message(&mut request_message);
1282
1283                if !message_text.is_empty() {
1284                    request_message
1285                        .content
1286                        .push(MessageContent::Text(message_text));
1287                }
1288
1289                let request = language_model::LanguageModelRequest {
1290                    thread_id: None,
1291                    prompt_id: None,
1292                    messages: vec![request_message],
1293                    tools: vec![],
1294                    stop: vec![],
1295                    temperature: None,
1296                };
1297
1298                Some(default_model.model.count_tokens(request, cx))
1299            })? {
1300                task.await?
1301            } else {
1302                0
1303            };
1304
1305            this.update(cx, |this, cx| {
1306                let Some((_message_id, state)) = this.editing_message.as_mut() else {
1307                    return;
1308                };
1309
1310                state.last_estimated_token_count = Some(token_count);
1311                cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1312            })
1313        }));
1314    }
1315
1316    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1317        self.editing_message.take();
1318        cx.notify();
1319    }
1320
1321    fn confirm_editing_message(
1322        &mut self,
1323        _: &menu::Confirm,
1324        window: &mut Window,
1325        cx: &mut Context<Self>,
1326    ) {
1327        let Some((message_id, state)) = self.editing_message.take() else {
1328            return;
1329        };
1330        let edited_text = state.editor.read(cx).text(cx);
1331        self.thread.update(cx, |thread, cx| {
1332            thread.edit_message(
1333                message_id,
1334                Role::User,
1335                vec![MessageSegment::Text(edited_text)],
1336                cx,
1337            );
1338            for message_id in self.messages_after(message_id) {
1339                thread.delete_message(*message_id, cx);
1340            }
1341        });
1342
1343        let Some(model) = LanguageModelRegistry::read_global(cx).default_model() else {
1344            return;
1345        };
1346
1347        if model.provider.must_accept_terms(cx) {
1348            cx.notify();
1349            return;
1350        }
1351
1352        self.thread.update(cx, |thread, cx| {
1353            thread.advance_prompt_id();
1354            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1355        });
1356        cx.notify();
1357    }
1358
1359    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1360        self.messages
1361            .iter()
1362            .position(|id| *id == message_id)
1363            .map(|index| &self.messages[index + 1..])
1364            .unwrap_or(&[])
1365    }
1366
1367    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1368        self.cancel_editing_message(&menu::Cancel, window, cx);
1369    }
1370
1371    fn handle_regenerate_click(
1372        &mut self,
1373        _: &ClickEvent,
1374        window: &mut Window,
1375        cx: &mut Context<Self>,
1376    ) {
1377        self.confirm_editing_message(&menu::Confirm, window, cx);
1378    }
1379
1380    fn handle_feedback_click(
1381        &mut self,
1382        message_id: MessageId,
1383        feedback: ThreadFeedback,
1384        window: &mut Window,
1385        cx: &mut Context<Self>,
1386    ) {
1387        let report = self.thread.update(cx, |thread, cx| {
1388            thread.report_message_feedback(message_id, feedback, cx)
1389        });
1390
1391        cx.spawn(async move |this, cx| {
1392            report.await?;
1393            this.update(cx, |_this, cx| cx.notify())
1394        })
1395        .detach_and_log_err(cx);
1396
1397        match feedback {
1398            ThreadFeedback::Positive => {
1399                self.open_feedback_editors.remove(&message_id);
1400            }
1401            ThreadFeedback::Negative => {
1402                self.handle_show_feedback_comments(message_id, window, cx);
1403            }
1404        }
1405    }
1406
1407    fn handle_show_feedback_comments(
1408        &mut self,
1409        message_id: MessageId,
1410        window: &mut Window,
1411        cx: &mut Context<Self>,
1412    ) {
1413        let buffer = cx.new(|cx| {
1414            let empty_string = String::new();
1415            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1416        });
1417
1418        let editor = cx.new(|cx| {
1419            let mut editor = Editor::new(
1420                editor::EditorMode::AutoHeight { max_lines: 4 },
1421                buffer,
1422                None,
1423                window,
1424                cx,
1425            );
1426            editor.set_placeholder_text(
1427                "What went wrong? Share your feedback so we can improve.",
1428                cx,
1429            );
1430            editor
1431        });
1432
1433        editor.read(cx).focus_handle(cx).focus(window);
1434        self.open_feedback_editors.insert(message_id, editor);
1435        cx.notify();
1436    }
1437
1438    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1439        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1440            return;
1441        };
1442
1443        let report_task = self.thread.update(cx, |thread, cx| {
1444            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1445        });
1446
1447        let comments = editor.read(cx).text(cx);
1448        if !comments.is_empty() {
1449            let thread_id = self.thread.read(cx).id().clone();
1450            let comments_value = String::from(comments.as_str());
1451
1452            let message_content = self
1453                .thread
1454                .read(cx)
1455                .message(message_id)
1456                .map(|msg| msg.to_string())
1457                .unwrap_or_default();
1458
1459            telemetry::event!(
1460                "Assistant Thread Feedback Comments",
1461                thread_id,
1462                message_id = message_id.0,
1463                message_content,
1464                comments = comments_value
1465            );
1466
1467            self.open_feedback_editors.remove(&message_id);
1468
1469            cx.spawn(async move |this, cx| {
1470                report_task.await?;
1471                this.update(cx, |_this, cx| cx.notify())
1472            })
1473            .detach_and_log_err(cx);
1474        }
1475    }
1476
1477    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1478        let message_id = self.messages[ix];
1479        let Some(message) = self.thread.read(cx).message(message_id) else {
1480            return Empty.into_any();
1481        };
1482
1483        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1484            return Empty.into_any();
1485        };
1486
1487        let workspace = self.workspace.clone();
1488        let thread = self.thread.read(cx);
1489        let prompt_store = self.thread_store.read(cx).prompt_store().as_ref();
1490
1491        // Get all the data we need from thread before we start using it in closures
1492        let checkpoint = thread.checkpoint_for_message(message_id);
1493        let added_context = if let Some(workspace) = workspace.upgrade() {
1494            let project = workspace.read(cx).project().read(cx);
1495            thread
1496                .context_for_message(message_id)
1497                .flat_map(|context| AddedContext::new(context.clone(), prompt_store, project, cx))
1498                .collect::<Vec<_>>()
1499        } else {
1500            return Empty.into_any();
1501        };
1502
1503        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1504        let has_tool_uses = !tool_uses.is_empty();
1505        let is_generating = thread.is_generating();
1506
1507        let is_first_message = ix == 0;
1508        let is_last_message = ix == self.messages.len() - 1;
1509
1510        let show_feedback = thread.is_turn_end(ix);
1511
1512        let needs_confirmation = tool_uses.iter().any(|tool_use| tool_use.needs_confirmation);
1513
1514        let generating_label = (is_generating && is_last_message)
1515            .then(|| AnimatedLabel::new("Generating").size(LabelSize::Small));
1516
1517        let edit_message_editor = self
1518            .editing_message
1519            .as_ref()
1520            .filter(|(id, _)| *id == message_id)
1521            .map(|(_, state)| state.editor.clone());
1522
1523        let colors = cx.theme().colors();
1524        let editor_bg_color = colors.editor_background;
1525
1526        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1527            .shape(ui::IconButtonShape::Square)
1528            .icon_size(IconSize::XSmall)
1529            .icon_color(Color::Ignored)
1530            .tooltip(Tooltip::text("Open Thread as Markdown"))
1531            .on_click(|_, window, cx| {
1532                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1533            });
1534
1535        // For all items that should be aligned with the LLM's response.
1536        const RESPONSE_PADDING_X: Pixels = px(18.);
1537
1538        let feedback_container = h_flex()
1539            .py_2()
1540            .px(RESPONSE_PADDING_X)
1541            .gap_1()
1542            .flex_wrap()
1543            .justify_between();
1544        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1545            Some(feedback) => feedback_container
1546                .child(
1547                    Label::new(match feedback {
1548                        ThreadFeedback::Positive => "Thanks for your feedback!",
1549                        ThreadFeedback::Negative => {
1550                            "We appreciate your feedback and will use it to improve."
1551                        }
1552                    })
1553                    .color(Color::Muted)
1554                    .size(LabelSize::XSmall)
1555                    .truncate(),
1556                )
1557                .child(
1558                    h_flex()
1559                        .pr_1()
1560                        .gap_1()
1561                        .child(
1562                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1563                                .shape(ui::IconButtonShape::Square)
1564                                .icon_size(IconSize::XSmall)
1565                                .icon_color(match feedback {
1566                                    ThreadFeedback::Positive => Color::Accent,
1567                                    ThreadFeedback::Negative => Color::Ignored,
1568                                })
1569                                .tooltip(Tooltip::text("Helpful Response"))
1570                                .on_click(cx.listener(move |this, _, window, cx| {
1571                                    this.handle_feedback_click(
1572                                        message_id,
1573                                        ThreadFeedback::Positive,
1574                                        window,
1575                                        cx,
1576                                    );
1577                                })),
1578                        )
1579                        .child(
1580                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1581                                .shape(ui::IconButtonShape::Square)
1582                                .icon_size(IconSize::XSmall)
1583                                .icon_color(match feedback {
1584                                    ThreadFeedback::Positive => Color::Ignored,
1585                                    ThreadFeedback::Negative => Color::Accent,
1586                                })
1587                                .tooltip(Tooltip::text("Not Helpful"))
1588                                .on_click(cx.listener(move |this, _, window, cx| {
1589                                    this.handle_feedback_click(
1590                                        message_id,
1591                                        ThreadFeedback::Negative,
1592                                        window,
1593                                        cx,
1594                                    );
1595                                })),
1596                        )
1597                        .child(open_as_markdown),
1598                )
1599                .into_any_element(),
1600            None => feedback_container
1601                .child(
1602                    Label::new(
1603                        "Rating the thread sends all of your current conversation to the Zed team.",
1604                    )
1605                    .color(Color::Muted)
1606                    .size(LabelSize::XSmall)
1607                    .truncate(),
1608                )
1609                .child(
1610                    h_flex()
1611                        .pr_1()
1612                        .gap_1()
1613                        .child(
1614                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1615                                .icon_size(IconSize::XSmall)
1616                                .icon_color(Color::Ignored)
1617                                .shape(ui::IconButtonShape::Square)
1618                                .tooltip(Tooltip::text("Helpful Response"))
1619                                .on_click(cx.listener(move |this, _, window, cx| {
1620                                    this.handle_feedback_click(
1621                                        message_id,
1622                                        ThreadFeedback::Positive,
1623                                        window,
1624                                        cx,
1625                                    );
1626                                })),
1627                        )
1628                        .child(
1629                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1630                                .icon_size(IconSize::XSmall)
1631                                .icon_color(Color::Ignored)
1632                                .shape(ui::IconButtonShape::Square)
1633                                .tooltip(Tooltip::text("Not Helpful"))
1634                                .on_click(cx.listener(move |this, _, window, cx| {
1635                                    this.handle_feedback_click(
1636                                        message_id,
1637                                        ThreadFeedback::Negative,
1638                                        window,
1639                                        cx,
1640                                    );
1641                                })),
1642                        )
1643                        .child(open_as_markdown),
1644                )
1645                .into_any_element(),
1646        };
1647
1648        let message_is_empty = message.should_display_content();
1649        let has_content = !message_is_empty || !added_context.is_empty();
1650
1651        let message_content = has_content.then(|| {
1652            v_flex()
1653                .gap_1()
1654                .when(!message_is_empty, |parent| {
1655                    parent.child(
1656                        if let Some(edit_message_editor) = edit_message_editor.clone() {
1657                            let settings = ThemeSettings::get_global(cx);
1658                            let font_size = TextSize::Small.rems(cx);
1659                            let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1660
1661                            let text_style = TextStyle {
1662                                color: cx.theme().colors().text,
1663                                font_family: settings.buffer_font.family.clone(),
1664                                font_fallbacks: settings.buffer_font.fallbacks.clone(),
1665                                font_features: settings.buffer_font.features.clone(),
1666                                font_size: font_size.into(),
1667                                line_height: line_height.into(),
1668                                ..Default::default()
1669                            };
1670
1671                            div()
1672                                .key_context("EditMessageEditor")
1673                                .on_action(cx.listener(Self::cancel_editing_message))
1674                                .on_action(cx.listener(Self::confirm_editing_message))
1675                                .min_h_6()
1676                                .child(EditorElement::new(
1677                                    &edit_message_editor,
1678                                    EditorStyle {
1679                                        background: colors.editor_background,
1680                                        local_player: cx.theme().players().local(),
1681                                        text: text_style,
1682                                        syntax: cx.theme().syntax().clone(),
1683                                        ..Default::default()
1684                                    },
1685                                ))
1686                                .into_any()
1687                        } else {
1688                            div()
1689                                .min_h_6()
1690                                .child(self.render_message_content(
1691                                    message_id,
1692                                    rendered_message,
1693                                    has_tool_uses,
1694                                    workspace.clone(),
1695                                    window,
1696                                    cx,
1697                                ))
1698                                .into_any()
1699                        },
1700                    )
1701                })
1702                .when(!added_context.is_empty(), |parent| {
1703                    parent.child(h_flex().flex_wrap().gap_1().children(
1704                        added_context.into_iter().map(|added_context| {
1705                            let context = added_context.context.clone();
1706                            ContextPill::added(added_context, false, false, None).on_click(Rc::new(
1707                                cx.listener({
1708                                    let workspace = workspace.clone();
1709                                    move |_, _, window, cx| {
1710                                        if let Some(workspace) = workspace.upgrade() {
1711                                            open_context(&context, workspace, window, cx);
1712                                            cx.notify();
1713                                        }
1714                                    }
1715                                }),
1716                            ))
1717                        }),
1718                    ))
1719                })
1720        });
1721
1722        let styled_message = match message.role {
1723            Role::User => v_flex()
1724                .id(("message-container", ix))
1725                .map(|this| {
1726                    if is_first_message {
1727                        this.pt_2()
1728                    } else {
1729                        this.pt_4()
1730                    }
1731                })
1732                .pl_2()
1733                .pr_2p5()
1734                .pb_4()
1735                .child(
1736                    v_flex()
1737                        .id(("user-message", ix))
1738                        .bg(editor_bg_color)
1739                        .rounded_lg()
1740                        .shadow_md()
1741                        .border_1()
1742                        .border_color(colors.border)
1743                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1744                        .cursor_pointer()
1745                        .child(div().p_2().pt_2p5().children(message_content))
1746                        .when_some(edit_message_editor.clone(), |this, edit_editor| {
1747                            let focus_handle = edit_editor.focus_handle(cx);
1748
1749                            this.child(
1750                                h_flex()
1751                                    .p_1()
1752                                    .border_t_1()
1753                                    .border_color(colors.border_variant)
1754                                    .gap_1()
1755                                    .justify_end()
1756                                    .child(
1757                                        Button::new("cancel-edit-message", "Cancel")
1758                                            .label_size(LabelSize::Small)
1759                                            .key_binding(
1760                                                KeyBinding::for_action_in(
1761                                                    &menu::Cancel,
1762                                                    &focus_handle,
1763                                                    window,
1764                                                    cx,
1765                                                )
1766                                                .map(|kb| kb.size(rems_from_px(12.))),
1767                                            )
1768                                            .on_click(cx.listener(Self::handle_cancel_click)),
1769                                    )
1770                                    .child(
1771                                        Button::new("confirm-edit-message", "Regenerate")
1772                                            .disabled(edit_editor.read(cx).is_empty(cx))
1773                                            .label_size(LabelSize::Small)
1774                                            .key_binding(
1775                                                KeyBinding::for_action_in(
1776                                                    &menu::Confirm,
1777                                                    &focus_handle,
1778                                                    window,
1779                                                    cx,
1780                                                )
1781                                                .map(|kb| kb.size(rems_from_px(12.))),
1782                                            )
1783                                            .on_click(cx.listener(Self::handle_regenerate_click)),
1784                                    ),
1785                            )
1786                        })
1787                        .when(edit_message_editor.is_none(), |this| {
1788                            this.tooltip(Tooltip::text("Click To Edit"))
1789                        })
1790                        .on_click(cx.listener({
1791                            let message_segments = message.segments.clone();
1792                            move |this, _, window, cx| {
1793                                this.start_editing_message(
1794                                    message_id,
1795                                    &message_segments,
1796                                    window,
1797                                    cx,
1798                                );
1799                            }
1800                        })),
1801                ),
1802            Role::Assistant => v_flex()
1803                .id(("message-container", ix))
1804                .px(RESPONSE_PADDING_X)
1805                .gap_2()
1806                .children(message_content)
1807                .when(has_tool_uses, |parent| {
1808                    parent.children(tool_uses.into_iter().map(|tool_use| {
1809                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
1810                    }))
1811                }),
1812            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1813                v_flex()
1814                    .bg(colors.editor_background)
1815                    .rounded_sm()
1816                    .child(div().p_4().children(message_content)),
1817            ),
1818        };
1819
1820        let after_editing_message = self
1821            .editing_message
1822            .as_ref()
1823            .map_or(false, |(editing_message_id, _)| {
1824                message_id > *editing_message_id
1825            });
1826
1827        let panel_background = cx.theme().colors().panel_background;
1828
1829        v_flex()
1830            .w_full()
1831            .when_some(checkpoint, |parent, checkpoint| {
1832                let mut is_pending = false;
1833                let mut error = None;
1834                if let Some(last_restore_checkpoint) =
1835                    self.thread.read(cx).last_restore_checkpoint()
1836                {
1837                    if last_restore_checkpoint.message_id() == message_id {
1838                        match last_restore_checkpoint {
1839                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1840                            LastRestoreCheckpoint::Error { error: err, .. } => {
1841                                error = Some(err.clone());
1842                            }
1843                        }
1844                    }
1845                }
1846
1847                let restore_checkpoint_button =
1848                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1849                        .icon(if error.is_some() {
1850                            IconName::XCircle
1851                        } else {
1852                            IconName::Undo
1853                        })
1854                        .icon_size(IconSize::XSmall)
1855                        .icon_position(IconPosition::Start)
1856                        .icon_color(if error.is_some() {
1857                            Some(Color::Error)
1858                        } else {
1859                            None
1860                        })
1861                        .label_size(LabelSize::XSmall)
1862                        .disabled(is_pending)
1863                        .on_click(cx.listener(move |this, _, _window, cx| {
1864                            this.thread.update(cx, |thread, cx| {
1865                                thread
1866                                    .restore_checkpoint(checkpoint.clone(), cx)
1867                                    .detach_and_log_err(cx);
1868                            });
1869                        }));
1870
1871                let restore_checkpoint_button = if is_pending {
1872                    restore_checkpoint_button
1873                        .with_animation(
1874                            ("pulsating-restore-checkpoint-button", ix),
1875                            Animation::new(Duration::from_secs(2))
1876                                .repeat()
1877                                .with_easing(pulsating_between(0.6, 1.)),
1878                            |label, delta| label.alpha(delta),
1879                        )
1880                        .into_any_element()
1881                } else if let Some(error) = error {
1882                    restore_checkpoint_button
1883                        .tooltip(Tooltip::text(error.to_string()))
1884                        .into_any_element()
1885                } else {
1886                    restore_checkpoint_button.into_any_element()
1887                };
1888
1889                parent.child(
1890                    h_flex()
1891                        .pt_2p5()
1892                        .px_2p5()
1893                        .w_full()
1894                        .gap_1()
1895                        .child(ui::Divider::horizontal())
1896                        .child(restore_checkpoint_button)
1897                        .child(ui::Divider::horizontal()),
1898                )
1899            })
1900            .when(is_first_message, |parent| {
1901                parent.child(self.render_rules_item(cx))
1902            })
1903            .child(styled_message)
1904            .when(!needs_confirmation && generating_label.is_some(), |this| {
1905                this.child(
1906                    h_flex()
1907                        .h_8()
1908                        .mt_2()
1909                        .mb_4()
1910                        .ml_4()
1911                        .py_1p5()
1912                        .child(generating_label.unwrap()),
1913                )
1914            })
1915            .when(show_feedback, move |parent| {
1916                parent.child(feedback_items).when_some(
1917                    self.open_feedback_editors.get(&message_id),
1918                    move |parent, feedback_editor| {
1919                        let focus_handle = feedback_editor.focus_handle(cx);
1920                        parent.child(
1921                            v_flex()
1922                                .key_context("AgentFeedbackMessageEditor")
1923                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1924                                    this.open_feedback_editors.remove(&message_id);
1925                                    cx.notify();
1926                                }))
1927                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1928                                    this.submit_feedback_message(message_id, cx);
1929                                    cx.notify();
1930                                }))
1931                                .on_action(cx.listener(Self::confirm_editing_message))
1932                                .mb_2()
1933                                .mx_4()
1934                                .p_2()
1935                                .rounded_md()
1936                                .border_1()
1937                                .border_color(cx.theme().colors().border)
1938                                .bg(cx.theme().colors().editor_background)
1939                                .child(feedback_editor.clone())
1940                                .child(
1941                                    h_flex()
1942                                        .gap_1()
1943                                        .justify_end()
1944                                        .child(
1945                                            Button::new("dismiss-feedback-message", "Cancel")
1946                                                .label_size(LabelSize::Small)
1947                                                .key_binding(
1948                                                    KeyBinding::for_action_in(
1949                                                        &menu::Cancel,
1950                                                        &focus_handle,
1951                                                        window,
1952                                                        cx,
1953                                                    )
1954                                                    .map(|kb| kb.size(rems_from_px(10.))),
1955                                                )
1956                                                .on_click(cx.listener(
1957                                                    move |this, _, _window, cx| {
1958                                                        this.open_feedback_editors
1959                                                            .remove(&message_id);
1960                                                        cx.notify();
1961                                                    },
1962                                                )),
1963                                        )
1964                                        .child(
1965                                            Button::new(
1966                                                "submit-feedback-message",
1967                                                "Share Feedback",
1968                                            )
1969                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1970                                            .label_size(LabelSize::Small)
1971                                            .key_binding(
1972                                                KeyBinding::for_action_in(
1973                                                    &menu::Confirm,
1974                                                    &focus_handle,
1975                                                    window,
1976                                                    cx,
1977                                                )
1978                                                .map(|kb| kb.size(rems_from_px(10.))),
1979                                            )
1980                                            .on_click(
1981                                                cx.listener(move |this, _, _window, cx| {
1982                                                    this.submit_feedback_message(message_id, cx);
1983                                                    cx.notify()
1984                                                }),
1985                                            ),
1986                                        ),
1987                                ),
1988                        )
1989                    },
1990                )
1991            })
1992            .when(after_editing_message, |parent| {
1993                // Backdrop to dim out the whole thread below the editing user message
1994                parent.relative().child(
1995                    div()
1996                        .occlude()
1997                        .absolute()
1998                        .inset_0()
1999                        .size_full()
2000                        .bg(panel_background)
2001                        .opacity(0.8),
2002                )
2003            })
2004            .into_any()
2005    }
2006
2007    fn render_message_content(
2008        &self,
2009        message_id: MessageId,
2010        rendered_message: &RenderedMessage,
2011        has_tool_uses: bool,
2012        workspace: WeakEntity<Workspace>,
2013        window: &Window,
2014        cx: &Context<Self>,
2015    ) -> impl IntoElement {
2016        let is_last_message = self.messages.last() == Some(&message_id);
2017        let is_generating = self.thread.read(cx).is_generating();
2018        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2019            rendered_message
2020                .segments
2021                .iter()
2022                .enumerate()
2023                .next_back()
2024                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2025                .map(|(index, _)| index)
2026        } else {
2027            None
2028        };
2029
2030        let message_role = self
2031            .thread
2032            .read(cx)
2033            .message(message_id)
2034            .map(|m| m.role)
2035            .unwrap_or(Role::User);
2036
2037        let is_assistant_message = message_role == Role::Assistant;
2038        let is_user_message = message_role == Role::User;
2039
2040        v_flex()
2041            .text_ui(cx)
2042            .gap_2()
2043            .when(is_user_message, |this| this.text_xs())
2044            .children(
2045                rendered_message.segments.iter().enumerate().map(
2046                    |(index, segment)| match segment {
2047                        RenderedMessageSegment::Thinking {
2048                            content,
2049                            scroll_handle,
2050                        } => self
2051                            .render_message_thinking_segment(
2052                                message_id,
2053                                index,
2054                                content.clone(),
2055                                &scroll_handle,
2056                                Some(index) == pending_thinking_segment_index,
2057                                window,
2058                                cx,
2059                            )
2060                            .into_any_element(),
2061                        RenderedMessageSegment::Text(markdown) => {
2062                            let markdown_element = MarkdownElement::new(
2063                                markdown.clone(),
2064                                if is_user_message {
2065                                    let mut style = default_markdown_style(window, cx);
2066                                    let mut text_style = window.text_style();
2067                                    let theme_settings = ThemeSettings::get_global(cx);
2068
2069                                    let buffer_font = theme_settings.buffer_font.family.clone();
2070                                    let buffer_font_size = TextSize::Small.rems(cx);
2071
2072                                    text_style.refine(&TextStyleRefinement {
2073                                        font_family: Some(buffer_font),
2074                                        font_size: Some(buffer_font_size.into()),
2075                                        ..Default::default()
2076                                    });
2077
2078                                    style.base_text_style = text_style;
2079                                    style
2080                                } else {
2081                                    default_markdown_style(window, cx)
2082                                },
2083                            );
2084
2085                            let markdown_element = if is_assistant_message {
2086                                markdown_element.code_block_renderer(
2087                                    markdown::CodeBlockRenderer::Custom {
2088                                        render: Arc::new({
2089                                            let workspace = workspace.clone();
2090                                            let active_thread = cx.entity();
2091                                            move |kind,
2092                                                  parsed_markdown,
2093                                                  range,
2094                                                  metadata,
2095                                                  window,
2096                                                  cx| {
2097                                                render_markdown_code_block(
2098                                                    message_id,
2099                                                    range.start,
2100                                                    kind,
2101                                                    parsed_markdown,
2102                                                    metadata,
2103                                                    active_thread.clone(),
2104                                                    workspace.clone(),
2105                                                    window,
2106                                                    cx,
2107                                                )
2108                                            }
2109                                        }),
2110                                        transform: Some(Arc::new({
2111                                            let active_thread = cx.entity();
2112                                            let editor_bg = cx.theme().colors().editor_background;
2113
2114                                            move |el, range, metadata, _, cx| {
2115                                                let is_expanded = active_thread
2116                                                    .read(cx)
2117                                                    .expanded_code_blocks
2118                                                    .get(&(message_id, range.start))
2119                                                    .copied()
2120                                                    .unwrap_or(true);
2121
2122                                                if is_expanded
2123                                                    || metadata.line_count
2124                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2125                                                {
2126                                                    return el;
2127                                                }
2128                                                el.child(
2129                                                    div()
2130                                                        .absolute()
2131                                                        .bottom_0()
2132                                                        .left_0()
2133                                                        .w_full()
2134                                                        .h_1_4()
2135                                                        .rounded_b_lg()
2136                                                        .bg(linear_gradient(
2137                                                            0.,
2138                                                            linear_color_stop(editor_bg, 0.),
2139                                                            linear_color_stop(
2140                                                                editor_bg.opacity(0.),
2141                                                                1.,
2142                                                            ),
2143                                                        )),
2144                                                )
2145                                            }
2146                                        })),
2147                                    },
2148                                )
2149                            } else {
2150                                markdown_element.code_block_renderer(
2151                                    markdown::CodeBlockRenderer::Default {
2152                                        copy_button: false,
2153                                        border: true,
2154                                    },
2155                                )
2156                            };
2157
2158                            div()
2159                                .child(markdown_element.on_url_click({
2160                                    let workspace = self.workspace.clone();
2161                                    move |text, window, cx| {
2162                                        open_markdown_link(text, workspace.clone(), window, cx);
2163                                    }
2164                                }))
2165                                .into_any_element()
2166                        }
2167                    },
2168                ),
2169            )
2170    }
2171
2172    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2173        cx.theme().colors().border.opacity(0.5)
2174    }
2175
2176    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2177        cx.theme()
2178            .colors()
2179            .element_background
2180            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2181    }
2182
2183    fn render_message_thinking_segment(
2184        &self,
2185        message_id: MessageId,
2186        ix: usize,
2187        markdown: Entity<Markdown>,
2188        scroll_handle: &ScrollHandle,
2189        pending: bool,
2190        window: &Window,
2191        cx: &Context<Self>,
2192    ) -> impl IntoElement {
2193        let is_open = self
2194            .expanded_thinking_segments
2195            .get(&(message_id, ix))
2196            .copied()
2197            .unwrap_or_default();
2198
2199        let editor_bg = cx.theme().colors().panel_background;
2200
2201        div().map(|this| {
2202            if pending {
2203                this.v_flex()
2204                    .mt_neg_2()
2205                    .mb_1p5()
2206                    .child(
2207                        h_flex()
2208                            .group("disclosure-header")
2209                            .justify_between()
2210                            .child(
2211                                h_flex()
2212                                    .gap_1p5()
2213                                    .child(
2214                                        Icon::new(IconName::LightBulb)
2215                                            .size(IconSize::XSmall)
2216                                            .color(Color::Muted),
2217                                    )
2218                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2219                            )
2220                            .child(
2221                                h_flex()
2222                                    .gap_1()
2223                                    .child(
2224                                        div().visible_on_hover("disclosure-header").child(
2225                                            Disclosure::new("thinking-disclosure", is_open)
2226                                                .opened_icon(IconName::ChevronUp)
2227                                                .closed_icon(IconName::ChevronDown)
2228                                                .on_click(cx.listener({
2229                                                    move |this, _event, _window, _cx| {
2230                                                        let is_open = this
2231                                                            .expanded_thinking_segments
2232                                                            .entry((message_id, ix))
2233                                                            .or_insert(false);
2234
2235                                                        *is_open = !*is_open;
2236                                                    }
2237                                                })),
2238                                        ),
2239                                    )
2240                                    .child({
2241                                        Icon::new(IconName::ArrowCircle)
2242                                            .color(Color::Accent)
2243                                            .size(IconSize::Small)
2244                                            .with_animation(
2245                                                "arrow-circle",
2246                                                Animation::new(Duration::from_secs(2)).repeat(),
2247                                                |icon, delta| {
2248                                                    icon.transform(Transformation::rotate(
2249                                                        percentage(delta),
2250                                                    ))
2251                                                },
2252                                            )
2253                                    }),
2254                            ),
2255                    )
2256                    .when(!is_open, |this| {
2257                        let gradient_overlay = div()
2258                            .rounded_b_lg()
2259                            .h_full()
2260                            .absolute()
2261                            .w_full()
2262                            .bottom_0()
2263                            .left_0()
2264                            .bg(linear_gradient(
2265                                180.,
2266                                linear_color_stop(editor_bg, 1.),
2267                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2268                            ));
2269
2270                        this.child(
2271                            div()
2272                                .relative()
2273                                .bg(editor_bg)
2274                                .rounded_b_lg()
2275                                .mt_2()
2276                                .pl_4()
2277                                .child(
2278                                    div()
2279                                        .id(("thinking-content", ix))
2280                                        .max_h_20()
2281                                        .track_scroll(scroll_handle)
2282                                        .text_ui_sm(cx)
2283                                        .overflow_hidden()
2284                                        .child(
2285                                            MarkdownElement::new(
2286                                                markdown.clone(),
2287                                                default_markdown_style(window, cx),
2288                                            )
2289                                            .on_url_click({
2290                                                let workspace = self.workspace.clone();
2291                                                move |text, window, cx| {
2292                                                    open_markdown_link(
2293                                                        text,
2294                                                        workspace.clone(),
2295                                                        window,
2296                                                        cx,
2297                                                    );
2298                                                }
2299                                            }),
2300                                        ),
2301                                )
2302                                .child(gradient_overlay),
2303                        )
2304                    })
2305                    .when(is_open, |this| {
2306                        this.child(
2307                            div()
2308                                .id(("thinking-content", ix))
2309                                .h_full()
2310                                .bg(editor_bg)
2311                                .text_ui_sm(cx)
2312                                .child(
2313                                    MarkdownElement::new(
2314                                        markdown.clone(),
2315                                        default_markdown_style(window, cx),
2316                                    )
2317                                    .on_url_click({
2318                                        let workspace = self.workspace.clone();
2319                                        move |text, window, cx| {
2320                                            open_markdown_link(text, workspace.clone(), window, cx);
2321                                        }
2322                                    }),
2323                                ),
2324                        )
2325                    })
2326            } else {
2327                this.v_flex()
2328                    .mt_neg_2()
2329                    .child(
2330                        h_flex()
2331                            .group("disclosure-header")
2332                            .pr_1()
2333                            .justify_between()
2334                            .opacity(0.8)
2335                            .hover(|style| style.opacity(1.))
2336                            .child(
2337                                h_flex()
2338                                    .gap_1p5()
2339                                    .child(
2340                                        Icon::new(IconName::LightBulb)
2341                                            .size(IconSize::XSmall)
2342                                            .color(Color::Muted),
2343                                    )
2344                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2345                            )
2346                            .child(
2347                                div().visible_on_hover("disclosure-header").child(
2348                                    Disclosure::new("thinking-disclosure", is_open)
2349                                        .opened_icon(IconName::ChevronUp)
2350                                        .closed_icon(IconName::ChevronDown)
2351                                        .on_click(cx.listener({
2352                                            move |this, _event, _window, _cx| {
2353                                                let is_open = this
2354                                                    .expanded_thinking_segments
2355                                                    .entry((message_id, ix))
2356                                                    .or_insert(false);
2357
2358                                                *is_open = !*is_open;
2359                                            }
2360                                        })),
2361                                ),
2362                            ),
2363                    )
2364                    .child(
2365                        div()
2366                            .id(("thinking-content", ix))
2367                            .relative()
2368                            .mt_1p5()
2369                            .ml_1p5()
2370                            .pl_2p5()
2371                            .border_l_1()
2372                            .border_color(cx.theme().colors().border_variant)
2373                            .text_ui_sm(cx)
2374                            .when(is_open, |this| {
2375                                this.child(
2376                                    MarkdownElement::new(
2377                                        markdown.clone(),
2378                                        default_markdown_style(window, cx),
2379                                    )
2380                                    .on_url_click({
2381                                        let workspace = self.workspace.clone();
2382                                        move |text, window, cx| {
2383                                            open_markdown_link(text, workspace.clone(), window, cx);
2384                                        }
2385                                    }),
2386                                )
2387                            }),
2388                    )
2389            }
2390        })
2391    }
2392
2393    fn render_tool_use(
2394        &self,
2395        tool_use: ToolUse,
2396        window: &mut Window,
2397        workspace: WeakEntity<Workspace>,
2398        cx: &mut Context<Self>,
2399    ) -> impl IntoElement + use<> {
2400        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2401            return card.render(&tool_use.status, window, workspace, cx);
2402        }
2403
2404        let is_open = self
2405            .expanded_tool_uses
2406            .get(&tool_use.id)
2407            .copied()
2408            .unwrap_or_default();
2409
2410        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2411
2412        let fs = self
2413            .workspace
2414            .upgrade()
2415            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2416        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2417        let needs_confirmation_tools = tool_use.needs_confirmation;
2418
2419        let status_icons = div().child(match &tool_use.status {
2420            ToolUseStatus::NeedsConfirmation => {
2421                let icon = Icon::new(IconName::Warning)
2422                    .color(Color::Warning)
2423                    .size(IconSize::Small);
2424                icon.into_any_element()
2425            }
2426            ToolUseStatus::Pending
2427            | ToolUseStatus::InputStillStreaming
2428            | ToolUseStatus::Running => {
2429                let icon = Icon::new(IconName::ArrowCircle)
2430                    .color(Color::Accent)
2431                    .size(IconSize::Small);
2432                icon.with_animation(
2433                    "arrow-circle",
2434                    Animation::new(Duration::from_secs(2)).repeat(),
2435                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2436                )
2437                .into_any_element()
2438            }
2439            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2440            ToolUseStatus::Error(_) => {
2441                let icon = Icon::new(IconName::Close)
2442                    .color(Color::Error)
2443                    .size(IconSize::Small);
2444                icon.into_any_element()
2445            }
2446        });
2447
2448        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2449        let results_content_container = || v_flex().p_2().gap_0p5();
2450
2451        let results_content = v_flex()
2452            .gap_1()
2453            .child(
2454                results_content_container()
2455                    .child(
2456                        Label::new("Input")
2457                            .size(LabelSize::XSmall)
2458                            .color(Color::Muted)
2459                            .buffer_font(cx),
2460                    )
2461                    .child(
2462                        div()
2463                            .w_full()
2464                            .text_ui_sm(cx)
2465                            .children(rendered_tool_use.as_ref().map(|rendered| {
2466                                MarkdownElement::new(
2467                                    rendered.input.clone(),
2468                                    tool_use_markdown_style(window, cx),
2469                                )
2470                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2471                                    copy_button: false,
2472                                    border: false,
2473                                })
2474                                .on_url_click({
2475                                    let workspace = self.workspace.clone();
2476                                    move |text, window, cx| {
2477                                        open_markdown_link(text, workspace.clone(), window, cx);
2478                                    }
2479                                })
2480                            })),
2481                    ),
2482            )
2483            .map(|container| match tool_use.status {
2484                ToolUseStatus::Finished(_) => container.child(
2485                    results_content_container()
2486                        .border_t_1()
2487                        .border_color(self.tool_card_border_color(cx))
2488                        .child(
2489                            Label::new("Result")
2490                                .size(LabelSize::XSmall)
2491                                .color(Color::Muted)
2492                                .buffer_font(cx),
2493                        )
2494                        .child(div().w_full().text_ui_sm(cx).children(
2495                            rendered_tool_use.as_ref().map(|rendered| {
2496                                MarkdownElement::new(
2497                                    rendered.output.clone(),
2498                                    tool_use_markdown_style(window, cx),
2499                                )
2500                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2501                                    copy_button: false,
2502                                    border: false,
2503                                })
2504                                .on_url_click({
2505                                    let workspace = self.workspace.clone();
2506                                    move |text, window, cx| {
2507                                        open_markdown_link(text, workspace.clone(), window, cx);
2508                                    }
2509                                })
2510                                .into_any_element()
2511                            }),
2512                        )),
2513                ),
2514                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2515                    results_content_container()
2516                        .border_t_1()
2517                        .border_color(self.tool_card_border_color(cx))
2518                        .child(
2519                            h_flex()
2520                                .gap_1()
2521                                .child(
2522                                    Icon::new(IconName::ArrowCircle)
2523                                        .size(IconSize::Small)
2524                                        .color(Color::Accent)
2525                                        .with_animation(
2526                                            "arrow-circle",
2527                                            Animation::new(Duration::from_secs(2)).repeat(),
2528                                            |icon, delta| {
2529                                                icon.transform(Transformation::rotate(percentage(
2530                                                    delta,
2531                                                )))
2532                                            },
2533                                        ),
2534                                )
2535                                .child(
2536                                    Label::new("Running…")
2537                                        .size(LabelSize::XSmall)
2538                                        .color(Color::Muted)
2539                                        .buffer_font(cx),
2540                                ),
2541                        ),
2542                ),
2543                ToolUseStatus::Error(_) => container.child(
2544                    results_content_container()
2545                        .border_t_1()
2546                        .border_color(self.tool_card_border_color(cx))
2547                        .child(
2548                            Label::new("Error")
2549                                .size(LabelSize::XSmall)
2550                                .color(Color::Muted)
2551                                .buffer_font(cx),
2552                        )
2553                        .child(
2554                            div()
2555                                .text_ui_sm(cx)
2556                                .children(rendered_tool_use.as_ref().map(|rendered| {
2557                                    MarkdownElement::new(
2558                                        rendered.output.clone(),
2559                                        tool_use_markdown_style(window, cx),
2560                                    )
2561                                    .on_url_click({
2562                                        let workspace = self.workspace.clone();
2563                                        move |text, window, cx| {
2564                                            open_markdown_link(text, workspace.clone(), window, cx);
2565                                        }
2566                                    })
2567                                    .into_any_element()
2568                                })),
2569                        ),
2570                ),
2571                ToolUseStatus::Pending => container,
2572                ToolUseStatus::NeedsConfirmation => container.child(
2573                    results_content_container()
2574                        .border_t_1()
2575                        .border_color(self.tool_card_border_color(cx))
2576                        .child(
2577                            Label::new("Asking Permission")
2578                                .size(LabelSize::Small)
2579                                .color(Color::Muted)
2580                                .buffer_font(cx),
2581                        ),
2582                ),
2583            });
2584
2585        let gradient_overlay = |color: Hsla| {
2586            div()
2587                .h_full()
2588                .absolute()
2589                .w_12()
2590                .bottom_0()
2591                .map(|element| {
2592                    if is_status_finished {
2593                        element.right_6()
2594                    } else {
2595                        element.right(px(44.))
2596                    }
2597                })
2598                .bg(linear_gradient(
2599                    90.,
2600                    linear_color_stop(color, 1.),
2601                    linear_color_stop(color.opacity(0.2), 0.),
2602                ))
2603        };
2604
2605        v_flex().gap_1().mb_2().map(|element| {
2606            if !needs_confirmation_tools {
2607                element.child(
2608                    v_flex()
2609                        .child(
2610                            h_flex()
2611                                .group("disclosure-header")
2612                                .relative()
2613                                .gap_1p5()
2614                                .justify_between()
2615                                .opacity(0.8)
2616                                .hover(|style| style.opacity(1.))
2617                                .when(!is_status_finished, |this| this.pr_2())
2618                                .child(
2619                                    h_flex()
2620                                        .id("tool-label-container")
2621                                        .gap_1p5()
2622                                        .max_w_full()
2623                                        .overflow_x_scroll()
2624                                        .child(
2625                                            Icon::new(tool_use.icon)
2626                                                .size(IconSize::XSmall)
2627                                                .color(Color::Muted),
2628                                        )
2629                                        .child(
2630                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2631                                                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| {
2632                                                    open_markdown_link(text, workspace.clone(), window, cx);
2633                                                }}))
2634                                            ),
2635                                        ),
2636                                )
2637                                .child(
2638                                    h_flex()
2639                                        .gap_1()
2640                                        .child(
2641                                            div().visible_on_hover("disclosure-header").child(
2642                                                Disclosure::new("tool-use-disclosure", is_open)
2643                                                    .opened_icon(IconName::ChevronUp)
2644                                                    .closed_icon(IconName::ChevronDown)
2645                                                    .on_click(cx.listener({
2646                                                        let tool_use_id = tool_use.id.clone();
2647                                                        move |this, _event, _window, _cx| {
2648                                                            let is_open = this
2649                                                                .expanded_tool_uses
2650                                                                .entry(tool_use_id.clone())
2651                                                                .or_insert(false);
2652
2653                                                            *is_open = !*is_open;
2654                                                        }
2655                                                    })),
2656                                            ),
2657                                        )
2658                                        .child(status_icons),
2659                                )
2660                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2661                        )
2662                        .map(|parent| {
2663                            if !is_open {
2664                                return parent;
2665                            }
2666
2667                            parent.child(
2668                                v_flex()
2669                                    .mt_1()
2670                                    .border_1()
2671                                    .border_color(self.tool_card_border_color(cx))
2672                                    .bg(cx.theme().colors().editor_background)
2673                                    .rounded_lg()
2674                                    .child(results_content),
2675                            )
2676                        }),
2677                )
2678            } else {
2679                v_flex()
2680                    .mb_2()
2681                    .rounded_lg()
2682                    .border_1()
2683                    .border_color(self.tool_card_border_color(cx))
2684                    .overflow_hidden()
2685                    .child(
2686                        h_flex()
2687                            .group("disclosure-header")
2688                            .relative()
2689                            .justify_between()
2690                            .py_1()
2691                            .map(|element| {
2692                                if is_status_finished {
2693                                    element.pl_2().pr_0p5()
2694                                } else {
2695                                    element.px_2()
2696                                }
2697                            })
2698                            .bg(self.tool_card_header_bg(cx))
2699                            .map(|element| {
2700                                if is_open {
2701                                    element.border_b_1().rounded_t_md()
2702                                } else if needs_confirmation {
2703                                    element.rounded_t_md()
2704                                } else {
2705                                    element.rounded_md()
2706                                }
2707                            })
2708                            .border_color(self.tool_card_border_color(cx))
2709                            .child(
2710                                h_flex()
2711                                    .id("tool-label-container")
2712                                    .gap_1p5()
2713                                    .max_w_full()
2714                                    .overflow_x_scroll()
2715                                    .child(
2716                                        Icon::new(tool_use.icon)
2717                                            .size(IconSize::XSmall)
2718                                            .color(Color::Muted),
2719                                    )
2720                                    .child(
2721                                        h_flex().pr_8().text_ui_sm(cx).children(
2722                                            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| {
2723                                                open_markdown_link(text, workspace.clone(), window, cx);
2724                                            }}))
2725                                        ),
2726                                    ),
2727                            )
2728                            .child(
2729                                h_flex()
2730                                    .gap_1()
2731                                    .child(
2732                                        div().visible_on_hover("disclosure-header").child(
2733                                            Disclosure::new("tool-use-disclosure", is_open)
2734                                                .opened_icon(IconName::ChevronUp)
2735                                                .closed_icon(IconName::ChevronDown)
2736                                                .on_click(cx.listener({
2737                                                    let tool_use_id = tool_use.id.clone();
2738                                                    move |this, _event, _window, _cx| {
2739                                                        let is_open = this
2740                                                            .expanded_tool_uses
2741                                                            .entry(tool_use_id.clone())
2742                                                            .or_insert(false);
2743
2744                                                        *is_open = !*is_open;
2745                                                    }
2746                                                })),
2747                                        ),
2748                                    )
2749                                    .child(status_icons),
2750                            )
2751                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2752                    )
2753                    .map(|parent| {
2754                        if !is_open {
2755                            return parent;
2756                        }
2757
2758                        parent.child(
2759                            v_flex()
2760                                .bg(cx.theme().colors().editor_background)
2761                                .map(|element| {
2762                                    if  needs_confirmation {
2763                                        element.rounded_none()
2764                                    } else {
2765                                        element.rounded_b_lg()
2766                                    }
2767                                })
2768                                .child(results_content),
2769                        )
2770                    })
2771                    .when(needs_confirmation, |this| {
2772                        this.child(
2773                            h_flex()
2774                                .py_1()
2775                                .pl_2()
2776                                .pr_1()
2777                                .gap_1()
2778                                .justify_between()
2779                                .bg(cx.theme().colors().editor_background)
2780                                .border_t_1()
2781                                .border_color(self.tool_card_border_color(cx))
2782                                .rounded_b_lg()
2783                                .child(
2784                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
2785                                )
2786                                .child(
2787                                    h_flex()
2788                                        .gap_0p5()
2789                                        .child({
2790                                            let tool_id = tool_use.id.clone();
2791                                            Button::new(
2792                                                "always-allow-tool-action",
2793                                                "Always Allow",
2794                                            )
2795                                            .label_size(LabelSize::Small)
2796                                            .icon(IconName::CheckDouble)
2797                                            .icon_position(IconPosition::Start)
2798                                            .icon_size(IconSize::Small)
2799                                            .icon_color(Color::Success)
2800                                            .tooltip(move |window, cx|  {
2801                                                Tooltip::with_meta(
2802                                                    "Never ask for permission",
2803                                                    None,
2804                                                    "Restore the original behavior in your Agent Panel settings",
2805                                                    window,
2806                                                    cx,
2807                                                )
2808                                            })
2809                                            .on_click(cx.listener(
2810                                                move |this, event, window, cx| {
2811                                                    if let Some(fs) = fs.clone() {
2812                                                        update_settings_file::<AssistantSettings>(
2813                                                            fs.clone(),
2814                                                            cx,
2815                                                            |settings, _| {
2816                                                                settings.set_always_allow_tool_actions(true);
2817                                                            },
2818                                                        );
2819                                                    }
2820                                                    this.handle_allow_tool(
2821                                                        tool_id.clone(),
2822                                                        event,
2823                                                        window,
2824                                                        cx,
2825                                                    )
2826                                                },
2827                                            ))
2828                                        })
2829                                        .child(ui::Divider::vertical())
2830                                        .child({
2831                                            let tool_id = tool_use.id.clone();
2832                                            Button::new("allow-tool-action", "Allow")
2833                                                .label_size(LabelSize::Small)
2834                                                .icon(IconName::Check)
2835                                                .icon_position(IconPosition::Start)
2836                                                .icon_size(IconSize::Small)
2837                                                .icon_color(Color::Success)
2838                                                .on_click(cx.listener(
2839                                                    move |this, event, window, cx| {
2840                                                        this.handle_allow_tool(
2841                                                            tool_id.clone(),
2842                                                            event,
2843                                                            window,
2844                                                            cx,
2845                                                        )
2846                                                    },
2847                                                ))
2848                                        })
2849                                        .child({
2850                                            let tool_id = tool_use.id.clone();
2851                                            let tool_name: Arc<str> = tool_use.name.into();
2852                                            Button::new("deny-tool", "Deny")
2853                                                .label_size(LabelSize::Small)
2854                                                .icon(IconName::Close)
2855                                                .icon_position(IconPosition::Start)
2856                                                .icon_size(IconSize::Small)
2857                                                .icon_color(Color::Error)
2858                                                .on_click(cx.listener(
2859                                                    move |this, event, window, cx| {
2860                                                        this.handle_deny_tool(
2861                                                            tool_id.clone(),
2862                                                            tool_name.clone(),
2863                                                            event,
2864                                                            window,
2865                                                            cx,
2866                                                        )
2867                                                    },
2868                                                ))
2869                                        }),
2870                                ),
2871                        )
2872                    })
2873            }
2874        }).into_any_element()
2875    }
2876
2877    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
2878        let project_context = self.thread.read(cx).project_context();
2879        let project_context = project_context.borrow();
2880        let Some(project_context) = project_context.as_ref() else {
2881            return div().into_any();
2882        };
2883
2884        let user_rules_text = if project_context.user_rules.is_empty() {
2885            None
2886        } else if project_context.user_rules.len() == 1 {
2887            let user_rules = &project_context.user_rules[0];
2888
2889            match user_rules.title.as_ref() {
2890                Some(title) => Some(format!("Using \"{title}\" user rule")),
2891                None => Some("Using user rule".into()),
2892            }
2893        } else {
2894            Some(format!(
2895                "Using {} user rules",
2896                project_context.user_rules.len()
2897            ))
2898        };
2899
2900        let first_user_rules_id = project_context
2901            .user_rules
2902            .first()
2903            .map(|user_rules| user_rules.uuid.0);
2904
2905        let rules_files = project_context
2906            .worktrees
2907            .iter()
2908            .filter_map(|worktree| worktree.rules_file.as_ref())
2909            .collect::<Vec<_>>();
2910
2911        let rules_file_text = match rules_files.as_slice() {
2912            &[] => None,
2913            &[rules_file] => Some(format!(
2914                "Using project {:?} file",
2915                rules_file.path_in_worktree
2916            )),
2917            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
2918        };
2919
2920        if user_rules_text.is_none() && rules_file_text.is_none() {
2921            return div().into_any();
2922        }
2923
2924        v_flex()
2925            .pt_2()
2926            .px_2p5()
2927            .gap_1()
2928            .when_some(user_rules_text, |parent, user_rules_text| {
2929                parent.child(
2930                    h_flex()
2931                        .w_full()
2932                        .child(
2933                            Icon::new(RULES_ICON)
2934                                .size(IconSize::XSmall)
2935                                .color(Color::Disabled),
2936                        )
2937                        .child(
2938                            Label::new(user_rules_text)
2939                                .size(LabelSize::XSmall)
2940                                .color(Color::Muted)
2941                                .truncate()
2942                                .buffer_font(cx)
2943                                .ml_1p5()
2944                                .mr_0p5(),
2945                        )
2946                        .child(
2947                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
2948                                .shape(ui::IconButtonShape::Square)
2949                                .icon_size(IconSize::XSmall)
2950                                .icon_color(Color::Ignored)
2951                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
2952                                .tooltip(Tooltip::text("View User Rules"))
2953                                .on_click(move |_event, window, cx| {
2954                                    window.dispatch_action(
2955                                        Box::new(OpenRulesLibrary {
2956                                            prompt_to_select: first_user_rules_id,
2957                                        }),
2958                                        cx,
2959                                    )
2960                                }),
2961                        ),
2962                )
2963            })
2964            .when_some(rules_file_text, |parent, rules_file_text| {
2965                parent.child(
2966                    h_flex()
2967                        .w_full()
2968                        .child(
2969                            Icon::new(IconName::File)
2970                                .size(IconSize::XSmall)
2971                                .color(Color::Disabled),
2972                        )
2973                        .child(
2974                            Label::new(rules_file_text)
2975                                .size(LabelSize::XSmall)
2976                                .color(Color::Muted)
2977                                .buffer_font(cx)
2978                                .ml_1p5()
2979                                .mr_0p5(),
2980                        )
2981                        .child(
2982                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
2983                                .shape(ui::IconButtonShape::Square)
2984                                .icon_size(IconSize::XSmall)
2985                                .icon_color(Color::Ignored)
2986                                .on_click(cx.listener(Self::handle_open_rules))
2987                                .tooltip(Tooltip::text("View Rules")),
2988                        ),
2989                )
2990            })
2991            .into_any()
2992    }
2993
2994    fn handle_allow_tool(
2995        &mut self,
2996        tool_use_id: LanguageModelToolUseId,
2997        _: &ClickEvent,
2998        window: &mut Window,
2999        cx: &mut Context<Self>,
3000    ) {
3001        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3002            .thread
3003            .read(cx)
3004            .pending_tool(&tool_use_id)
3005            .map(|tool_use| tool_use.status.clone())
3006        {
3007            self.thread.update(cx, |thread, cx| {
3008                thread.run_tool(
3009                    c.tool_use_id.clone(),
3010                    c.ui_text.clone(),
3011                    c.input.clone(),
3012                    &c.messages,
3013                    c.tool.clone(),
3014                    Some(window.window_handle()),
3015                    cx,
3016                );
3017            });
3018        }
3019    }
3020
3021    fn handle_deny_tool(
3022        &mut self,
3023        tool_use_id: LanguageModelToolUseId,
3024        tool_name: Arc<str>,
3025        _: &ClickEvent,
3026        window: &mut Window,
3027        cx: &mut Context<Self>,
3028    ) {
3029        let window_handle = window.window_handle();
3030        self.thread.update(cx, |thread, cx| {
3031            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3032        });
3033    }
3034
3035    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3036        let project_context = self.thread.read(cx).project_context();
3037        let project_context = project_context.borrow();
3038        let Some(project_context) = project_context.as_ref() else {
3039            return;
3040        };
3041
3042        let abs_paths = project_context
3043            .worktrees
3044            .iter()
3045            .flat_map(|worktree| worktree.rules_file.as_ref())
3046            .map(|rules_file| rules_file.abs_path.to_path_buf())
3047            .collect::<Vec<_>>();
3048
3049        if let Ok(task) = self.workspace.update(cx, move |workspace, cx| {
3050            // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3051            // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3052            // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3053            workspace.open_paths(abs_paths, OpenOptions::default(), None, window, cx)
3054        }) {
3055            task.detach();
3056        }
3057    }
3058
3059    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3060        for window in self.notifications.drain(..) {
3061            window
3062                .update(cx, |_, window, _| {
3063                    window.remove_window();
3064                })
3065                .ok();
3066
3067            self.notification_subscriptions.remove(&window);
3068        }
3069    }
3070
3071    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3072        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3073            return None;
3074        }
3075
3076        Some(
3077            div()
3078                .occlude()
3079                .id("active-thread-scrollbar")
3080                .on_mouse_move(cx.listener(|_, _, _, cx| {
3081                    cx.notify();
3082                    cx.stop_propagation()
3083                }))
3084                .on_hover(|_, _, cx| {
3085                    cx.stop_propagation();
3086                })
3087                .on_any_mouse_down(|_, _, cx| {
3088                    cx.stop_propagation();
3089                })
3090                .on_mouse_up(
3091                    MouseButton::Left,
3092                    cx.listener(|_, _, _, cx| {
3093                        cx.stop_propagation();
3094                    }),
3095                )
3096                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3097                    cx.notify();
3098                }))
3099                .h_full()
3100                .absolute()
3101                .right_1()
3102                .top_1()
3103                .bottom_0()
3104                .w(px(12.))
3105                .cursor_default()
3106                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3107        )
3108    }
3109
3110    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3111        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3112        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3113            cx.background_executor()
3114                .timer(SCROLLBAR_SHOW_INTERVAL)
3115                .await;
3116            thread
3117                .update(cx, |thread, cx| {
3118                    if !thread.scrollbar_state.is_dragging() {
3119                        thread.show_scrollbar = false;
3120                        cx.notify();
3121                    }
3122                })
3123                .log_err();
3124        }))
3125    }
3126}
3127
3128pub enum ActiveThreadEvent {
3129    EditingMessageTokenCountChanged,
3130}
3131
3132impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3133
3134impl Render for ActiveThread {
3135    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3136        v_flex()
3137            .size_full()
3138            .relative()
3139            .on_mouse_move(cx.listener(|this, _, _, cx| {
3140                this.show_scrollbar = true;
3141                this.hide_scrollbar_later(cx);
3142                cx.notify();
3143            }))
3144            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3145                this.show_scrollbar = true;
3146                this.hide_scrollbar_later(cx);
3147                cx.notify();
3148            }))
3149            .on_mouse_up(
3150                MouseButton::Left,
3151                cx.listener(|this, _, _, cx| {
3152                    this.hide_scrollbar_later(cx);
3153                }),
3154            )
3155            .child(list(self.list_state.clone()).flex_grow())
3156            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3157                this.child(scrollbar)
3158            })
3159    }
3160}
3161
3162pub(crate) fn open_context(
3163    context: &AgentContext,
3164    workspace: Entity<Workspace>,
3165    window: &mut Window,
3166    cx: &mut App,
3167) {
3168    match context {
3169        AgentContext::File(file_context) => {
3170            if let Some(project_path) = file_context.project_path(cx) {
3171                workspace.update(cx, |workspace, cx| {
3172                    workspace
3173                        .open_path(project_path, None, true, window, cx)
3174                        .detach_and_log_err(cx);
3175                });
3176            }
3177        }
3178
3179        AgentContext::Directory(directory_context) => {
3180            let entry_id = directory_context.entry_id;
3181            workspace.update(cx, |workspace, cx| {
3182                workspace.project().update(cx, |_project, cx| {
3183                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3184                })
3185            })
3186        }
3187
3188        AgentContext::Symbol(symbol_context) => {
3189            let buffer = symbol_context.buffer.read(cx);
3190            if let Some(project_path) = buffer.project_path(cx) {
3191                let snapshot = buffer.snapshot();
3192                let target_position = symbol_context.range.start.to_point(&snapshot);
3193                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3194                    .detach();
3195            }
3196        }
3197
3198        AgentContext::Selection(selection_context) => {
3199            let buffer = selection_context.buffer.read(cx);
3200            if let Some(project_path) = buffer.project_path(cx) {
3201                let snapshot = buffer.snapshot();
3202                let target_position = selection_context.range.start.to_point(&snapshot);
3203
3204                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3205                    .detach();
3206            }
3207        }
3208
3209        AgentContext::FetchedUrl(fetched_url_context) => {
3210            cx.open_url(&fetched_url_context.url);
3211        }
3212
3213        AgentContext::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3214            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3215                panel.update(cx, |panel, cx| {
3216                    let thread_id = thread_context.thread.read(cx).id().clone();
3217                    panel
3218                        .open_thread(&thread_id, window, cx)
3219                        .detach_and_log_err(cx)
3220                });
3221            }
3222        }),
3223
3224        AgentContext::Rules(rules_context) => window.dispatch_action(
3225            Box::new(OpenRulesLibrary {
3226                prompt_to_select: Some(rules_context.prompt_id.0),
3227            }),
3228            cx,
3229        ),
3230
3231        AgentContext::Image(_) => {}
3232    }
3233}
3234
3235fn open_editor_at_position(
3236    project_path: project::ProjectPath,
3237    target_position: Point,
3238    workspace: &Entity<Workspace>,
3239    window: &mut Window,
3240    cx: &mut App,
3241) -> Task<()> {
3242    let open_task = workspace.update(cx, |workspace, cx| {
3243        workspace.open_path(project_path, None, true, window, cx)
3244    });
3245    window.spawn(cx, async move |cx| {
3246        if let Some(active_editor) = open_task
3247            .await
3248            .log_err()
3249            .and_then(|item| item.downcast::<Editor>())
3250        {
3251            active_editor
3252                .downgrade()
3253                .update_in(cx, |editor, window, cx| {
3254                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3255                })
3256                .log_err();
3257        }
3258    })
3259}