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            .group("feedback_container")
1540            .py_2()
1541            .px(RESPONSE_PADDING_X)
1542            .gap_1()
1543            .flex_wrap()
1544            .justify_end();
1545        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1546            Some(feedback) => feedback_container
1547                .child(
1548                    div().mr_1().visible_on_hover("feedback_container").child(
1549                        Label::new(match feedback {
1550                            ThreadFeedback::Positive => "Thanks for your feedback!",
1551                            ThreadFeedback::Negative => {
1552                                "We appreciate your feedback and will use it to improve."
1553                            }
1554                        })
1555                    .color(Color::Muted)
1556                    .size(LabelSize::XSmall)
1557                    .truncate())
1558                )
1559                .child(
1560                    h_flex()
1561                        .pr_1()
1562                        .gap_1()
1563                        .child(
1564                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1565                                .shape(ui::IconButtonShape::Square)
1566                                .icon_size(IconSize::XSmall)
1567                                .icon_color(match feedback {
1568                                    ThreadFeedback::Positive => Color::Accent,
1569                                    ThreadFeedback::Negative => Color::Ignored,
1570                                })
1571                                .tooltip(Tooltip::text("Helpful Response"))
1572                                .on_click(cx.listener(move |this, _, window, cx| {
1573                                    this.handle_feedback_click(
1574                                        message_id,
1575                                        ThreadFeedback::Positive,
1576                                        window,
1577                                        cx,
1578                                    );
1579                                })),
1580                        )
1581                        .child(
1582                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1583                                .shape(ui::IconButtonShape::Square)
1584                                .icon_size(IconSize::XSmall)
1585                                .icon_color(match feedback {
1586                                    ThreadFeedback::Positive => Color::Ignored,
1587                                    ThreadFeedback::Negative => Color::Accent,
1588                                })
1589                                .tooltip(Tooltip::text("Not Helpful"))
1590                                .on_click(cx.listener(move |this, _, window, cx| {
1591                                    this.handle_feedback_click(
1592                                        message_id,
1593                                        ThreadFeedback::Negative,
1594                                        window,
1595                                        cx,
1596                                    );
1597                                })),
1598                        )
1599                        .child(open_as_markdown),
1600                )
1601                .into_any_element(),
1602            None => feedback_container
1603                .child(
1604                    div().mr_1().visible_on_hover("feedback_container").child(
1605                        Label::new(
1606                            "Rating the thread sends all of your current conversation to the Zed team.",
1607                        )
1608                        .color(Color::Muted)
1609                    .size(LabelSize::XSmall)
1610                    .truncate())
1611                )
1612                .child(
1613                    h_flex()
1614                        .pr_1()
1615                        .gap_1()
1616                        .child(
1617                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1618                                .icon_size(IconSize::XSmall)
1619                                .icon_color(Color::Ignored)
1620                                .shape(ui::IconButtonShape::Square)
1621                                .tooltip(Tooltip::text("Helpful Response"))
1622                                .on_click(cx.listener(move |this, _, window, cx| {
1623                                    this.handle_feedback_click(
1624                                        message_id,
1625                                        ThreadFeedback::Positive,
1626                                        window,
1627                                        cx,
1628                                    );
1629                                })),
1630                        )
1631                        .child(
1632                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1633                                .icon_size(IconSize::XSmall)
1634                                .icon_color(Color::Ignored)
1635                                .shape(ui::IconButtonShape::Square)
1636                                .tooltip(Tooltip::text("Not Helpful"))
1637                                .on_click(cx.listener(move |this, _, window, cx| {
1638                                    this.handle_feedback_click(
1639                                        message_id,
1640                                        ThreadFeedback::Negative,
1641                                        window,
1642                                        cx,
1643                                    );
1644                                })),
1645                        )
1646                        .child(open_as_markdown),
1647                )
1648                .into_any_element(),
1649        };
1650
1651        let message_is_empty = message.should_display_content();
1652        let has_content = !message_is_empty || !added_context.is_empty();
1653
1654        let message_content = has_content.then(|| {
1655            v_flex()
1656                .w_full()
1657                .gap_1()
1658                .when(!message_is_empty, |parent| {
1659                    parent.child(
1660                        if let Some(edit_message_editor) = edit_message_editor.clone() {
1661                            let settings = ThemeSettings::get_global(cx);
1662                            let font_size = TextSize::Small.rems(cx);
1663                            let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1664
1665                            let text_style = TextStyle {
1666                                color: cx.theme().colors().text,
1667                                font_family: settings.buffer_font.family.clone(),
1668                                font_fallbacks: settings.buffer_font.fallbacks.clone(),
1669                                font_features: settings.buffer_font.features.clone(),
1670                                font_size: font_size.into(),
1671                                line_height: line_height.into(),
1672                                ..Default::default()
1673                            };
1674
1675                            div()
1676                                .key_context("EditMessageEditor")
1677                                .on_action(cx.listener(Self::cancel_editing_message))
1678                                .on_action(cx.listener(Self::confirm_editing_message))
1679                                .min_h_6()
1680                                .flex_grow()
1681                                .w_full()
1682                                .child(EditorElement::new(
1683                                    &edit_message_editor,
1684                                    EditorStyle {
1685                                        background: colors.editor_background,
1686                                        local_player: cx.theme().players().local(),
1687                                        text: text_style,
1688                                        syntax: cx.theme().syntax().clone(),
1689                                        ..Default::default()
1690                                    },
1691                                ))
1692                                .into_any()
1693                        } else {
1694                            div()
1695                                .min_h_6()
1696                                .child(self.render_message_content(
1697                                    message_id,
1698                                    rendered_message,
1699                                    has_tool_uses,
1700                                    workspace.clone(),
1701                                    window,
1702                                    cx,
1703                                ))
1704                                .into_any()
1705                        },
1706                    )
1707                })
1708                .when(!added_context.is_empty(), |parent| {
1709                    parent.child(h_flex().flex_wrap().gap_1().children(
1710                        added_context.into_iter().map(|added_context| {
1711                            let context = added_context.context.clone();
1712                            ContextPill::added(added_context, false, false, None).on_click(Rc::new(
1713                                cx.listener({
1714                                    let workspace = workspace.clone();
1715                                    move |_, _, window, cx| {
1716                                        if let Some(workspace) = workspace.upgrade() {
1717                                            open_context(&context, workspace, window, cx);
1718                                            cx.notify();
1719                                        }
1720                                    }
1721                                }),
1722                            ))
1723                        }),
1724                    ))
1725                })
1726        });
1727
1728        let styled_message = match message.role {
1729            Role::User => v_flex()
1730                .id(("message-container", ix))
1731                .pt_2()
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(
1746                            h_flex()
1747                                .p_2()
1748                                .pt_3()
1749                                .gap_1()
1750                                .children(message_content)
1751                                .when_some(edit_message_editor.clone(), |this, edit_editor| {
1752                                    let edit_editor_clone = edit_editor.clone();
1753                                    this.w_full().justify_between().child(
1754                                        h_flex()
1755                                            .gap_0p5()
1756                                            .child(
1757                                                IconButton::new(
1758                                                    "cancel-edit-message",
1759                                                    IconName::Close,
1760                                                )
1761                                                .shape(ui::IconButtonShape::Square)
1762                                                .icon_color(Color::Error)
1763                                                .tooltip(move |window, cx| {
1764                                                    let focus_handle =
1765                                                        edit_editor_clone.focus_handle(cx);
1766                                                    Tooltip::for_action_in(
1767                                                        "Cancel Edit",
1768                                                        &menu::Cancel,
1769                                                        &focus_handle,
1770                                                        window,
1771                                                        cx,
1772                                                    )
1773                                                })
1774                                                .on_click(cx.listener(Self::handle_cancel_click)),
1775                                            )
1776                                            .child(
1777                                                IconButton::new(
1778                                                    "confirm-edit-message",
1779                                                    IconName::Check,
1780                                                )
1781                                                .disabled(edit_editor.read(cx).is_empty(cx))
1782                                                .shape(ui::IconButtonShape::Square)
1783                                                .icon_color(Color::Success)
1784                                                .tooltip(move |window, cx| {
1785                                                    let focus_handle = edit_editor.focus_handle(cx);
1786                                                    Tooltip::for_action_in(
1787                                                        "Regenerate",
1788                                                        &menu::Confirm,
1789                                                        &focus_handle,
1790                                                        window,
1791                                                        cx,
1792                                                    )
1793                                                })
1794                                                .on_click(
1795                                                    cx.listener(Self::handle_regenerate_click),
1796                                                ),
1797                                            ),
1798                                    )
1799                                }),
1800                        )
1801                        .when(edit_message_editor.is_none(), |this| {
1802                            this.tooltip(Tooltip::text("Click To Edit"))
1803                        })
1804                        .on_click(cx.listener({
1805                            let message_segments = message.segments.clone();
1806                            move |this, _, window, cx| {
1807                                this.start_editing_message(
1808                                    message_id,
1809                                    &message_segments,
1810                                    window,
1811                                    cx,
1812                                );
1813                            }
1814                        })),
1815                ),
1816            Role::Assistant => v_flex()
1817                .id(("message-container", ix))
1818                .px(RESPONSE_PADDING_X)
1819                .gap_2()
1820                .children(message_content)
1821                .when(has_tool_uses, |parent| {
1822                    parent.children(tool_uses.into_iter().map(|tool_use| {
1823                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
1824                    }))
1825                }),
1826            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1827                v_flex()
1828                    .bg(colors.editor_background)
1829                    .rounded_sm()
1830                    .child(div().p_4().children(message_content)),
1831            ),
1832        };
1833
1834        let after_editing_message = self
1835            .editing_message
1836            .as_ref()
1837            .map_or(false, |(editing_message_id, _)| {
1838                message_id > *editing_message_id
1839            });
1840
1841        let panel_background = cx.theme().colors().panel_background;
1842
1843        v_flex()
1844            .w_full()
1845            .when_some(checkpoint, |parent, checkpoint| {
1846                let mut is_pending = false;
1847                let mut error = None;
1848                if let Some(last_restore_checkpoint) =
1849                    self.thread.read(cx).last_restore_checkpoint()
1850                {
1851                    if last_restore_checkpoint.message_id() == message_id {
1852                        match last_restore_checkpoint {
1853                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1854                            LastRestoreCheckpoint::Error { error: err, .. } => {
1855                                error = Some(err.clone());
1856                            }
1857                        }
1858                    }
1859                }
1860
1861                let restore_checkpoint_button =
1862                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1863                        .icon(if error.is_some() {
1864                            IconName::XCircle
1865                        } else {
1866                            IconName::Undo
1867                        })
1868                        .icon_size(IconSize::XSmall)
1869                        .icon_position(IconPosition::Start)
1870                        .icon_color(if error.is_some() {
1871                            Some(Color::Error)
1872                        } else {
1873                            None
1874                        })
1875                        .label_size(LabelSize::XSmall)
1876                        .disabled(is_pending)
1877                        .on_click(cx.listener(move |this, _, _window, cx| {
1878                            this.thread.update(cx, |thread, cx| {
1879                                thread
1880                                    .restore_checkpoint(checkpoint.clone(), cx)
1881                                    .detach_and_log_err(cx);
1882                            });
1883                        }));
1884
1885                let restore_checkpoint_button = if is_pending {
1886                    restore_checkpoint_button
1887                        .with_animation(
1888                            ("pulsating-restore-checkpoint-button", ix),
1889                            Animation::new(Duration::from_secs(2))
1890                                .repeat()
1891                                .with_easing(pulsating_between(0.6, 1.)),
1892                            |label, delta| label.alpha(delta),
1893                        )
1894                        .into_any_element()
1895                } else if let Some(error) = error {
1896                    restore_checkpoint_button
1897                        .tooltip(Tooltip::text(error.to_string()))
1898                        .into_any_element()
1899                } else {
1900                    restore_checkpoint_button.into_any_element()
1901                };
1902
1903                parent.child(
1904                    h_flex()
1905                        .pt_2p5()
1906                        .px_2p5()
1907                        .w_full()
1908                        .gap_1()
1909                        .child(ui::Divider::horizontal())
1910                        .child(restore_checkpoint_button)
1911                        .child(ui::Divider::horizontal()),
1912                )
1913            })
1914            .when(is_first_message, |parent| {
1915                parent.child(self.render_rules_item(cx))
1916            })
1917            .child(styled_message)
1918            .when(!needs_confirmation && generating_label.is_some(), |this| {
1919                this.child(
1920                    h_flex()
1921                        .h_8()
1922                        .mt_2()
1923                        .mb_4()
1924                        .ml_4()
1925                        .py_1p5()
1926                        .child(generating_label.unwrap()),
1927                )
1928            })
1929            .when(show_feedback, move |parent| {
1930                parent.child(feedback_items).when_some(
1931                    self.open_feedback_editors.get(&message_id),
1932                    move |parent, feedback_editor| {
1933                        let focus_handle = feedback_editor.focus_handle(cx);
1934                        parent.child(
1935                            v_flex()
1936                                .key_context("AgentFeedbackMessageEditor")
1937                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1938                                    this.open_feedback_editors.remove(&message_id);
1939                                    cx.notify();
1940                                }))
1941                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1942                                    this.submit_feedback_message(message_id, cx);
1943                                    cx.notify();
1944                                }))
1945                                .on_action(cx.listener(Self::confirm_editing_message))
1946                                .mb_2()
1947                                .mx_4()
1948                                .p_2()
1949                                .rounded_md()
1950                                .border_1()
1951                                .border_color(cx.theme().colors().border)
1952                                .bg(cx.theme().colors().editor_background)
1953                                .child(feedback_editor.clone())
1954                                .child(
1955                                    h_flex()
1956                                        .gap_1()
1957                                        .justify_end()
1958                                        .child(
1959                                            Button::new("dismiss-feedback-message", "Cancel")
1960                                                .label_size(LabelSize::Small)
1961                                                .key_binding(
1962                                                    KeyBinding::for_action_in(
1963                                                        &menu::Cancel,
1964                                                        &focus_handle,
1965                                                        window,
1966                                                        cx,
1967                                                    )
1968                                                    .map(|kb| kb.size(rems_from_px(10.))),
1969                                                )
1970                                                .on_click(cx.listener(
1971                                                    move |this, _, _window, cx| {
1972                                                        this.open_feedback_editors
1973                                                            .remove(&message_id);
1974                                                        cx.notify();
1975                                                    },
1976                                                )),
1977                                        )
1978                                        .child(
1979                                            Button::new(
1980                                                "submit-feedback-message",
1981                                                "Share Feedback",
1982                                            )
1983                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1984                                            .label_size(LabelSize::Small)
1985                                            .key_binding(
1986                                                KeyBinding::for_action_in(
1987                                                    &menu::Confirm,
1988                                                    &focus_handle,
1989                                                    window,
1990                                                    cx,
1991                                                )
1992                                                .map(|kb| kb.size(rems_from_px(10.))),
1993                                            )
1994                                            .on_click(
1995                                                cx.listener(move |this, _, _window, cx| {
1996                                                    this.submit_feedback_message(message_id, cx);
1997                                                    cx.notify()
1998                                                }),
1999                                            ),
2000                                        ),
2001                                ),
2002                        )
2003                    },
2004                )
2005            })
2006            .when(after_editing_message, |parent| {
2007                // Backdrop to dim out the whole thread below the editing user message
2008                parent.relative().child(
2009                    div()
2010                        .occlude()
2011                        .absolute()
2012                        .inset_0()
2013                        .size_full()
2014                        .bg(panel_background)
2015                        .opacity(0.8),
2016                )
2017            })
2018            .into_any()
2019    }
2020
2021    fn render_message_content(
2022        &self,
2023        message_id: MessageId,
2024        rendered_message: &RenderedMessage,
2025        has_tool_uses: bool,
2026        workspace: WeakEntity<Workspace>,
2027        window: &Window,
2028        cx: &Context<Self>,
2029    ) -> impl IntoElement {
2030        let is_last_message = self.messages.last() == Some(&message_id);
2031        let is_generating = self.thread.read(cx).is_generating();
2032        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2033            rendered_message
2034                .segments
2035                .iter()
2036                .enumerate()
2037                .next_back()
2038                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2039                .map(|(index, _)| index)
2040        } else {
2041            None
2042        };
2043
2044        let message_role = self
2045            .thread
2046            .read(cx)
2047            .message(message_id)
2048            .map(|m| m.role)
2049            .unwrap_or(Role::User);
2050
2051        let is_assistant_message = message_role == Role::Assistant;
2052        let is_user_message = message_role == Role::User;
2053
2054        v_flex()
2055            .text_ui(cx)
2056            .gap_2()
2057            .when(is_user_message, |this| this.text_xs())
2058            .children(
2059                rendered_message.segments.iter().enumerate().map(
2060                    |(index, segment)| match segment {
2061                        RenderedMessageSegment::Thinking {
2062                            content,
2063                            scroll_handle,
2064                        } => self
2065                            .render_message_thinking_segment(
2066                                message_id,
2067                                index,
2068                                content.clone(),
2069                                &scroll_handle,
2070                                Some(index) == pending_thinking_segment_index,
2071                                window,
2072                                cx,
2073                            )
2074                            .into_any_element(),
2075                        RenderedMessageSegment::Text(markdown) => {
2076                            let markdown_element = MarkdownElement::new(
2077                                markdown.clone(),
2078                                if is_user_message {
2079                                    let mut style = default_markdown_style(window, cx);
2080                                    let mut text_style = window.text_style();
2081                                    let theme_settings = ThemeSettings::get_global(cx);
2082
2083                                    let buffer_font = theme_settings.buffer_font.family.clone();
2084                                    let buffer_font_size = TextSize::Small.rems(cx);
2085
2086                                    text_style.refine(&TextStyleRefinement {
2087                                        font_family: Some(buffer_font),
2088                                        font_size: Some(buffer_font_size.into()),
2089                                        ..Default::default()
2090                                    });
2091
2092                                    style.base_text_style = text_style;
2093                                    style
2094                                } else {
2095                                    default_markdown_style(window, cx)
2096                                },
2097                            );
2098
2099                            let markdown_element = if is_assistant_message {
2100                                markdown_element.code_block_renderer(
2101                                    markdown::CodeBlockRenderer::Custom {
2102                                        render: Arc::new({
2103                                            let workspace = workspace.clone();
2104                                            let active_thread = cx.entity();
2105                                            move |kind,
2106                                                  parsed_markdown,
2107                                                  range,
2108                                                  metadata,
2109                                                  window,
2110                                                  cx| {
2111                                                render_markdown_code_block(
2112                                                    message_id,
2113                                                    range.start,
2114                                                    kind,
2115                                                    parsed_markdown,
2116                                                    metadata,
2117                                                    active_thread.clone(),
2118                                                    workspace.clone(),
2119                                                    window,
2120                                                    cx,
2121                                                )
2122                                            }
2123                                        }),
2124                                        transform: Some(Arc::new({
2125                                            let active_thread = cx.entity();
2126                                            let editor_bg = cx.theme().colors().editor_background;
2127
2128                                            move |el, range, metadata, _, cx| {
2129                                                let is_expanded = active_thread
2130                                                    .read(cx)
2131                                                    .expanded_code_blocks
2132                                                    .get(&(message_id, range.start))
2133                                                    .copied()
2134                                                    .unwrap_or(true);
2135
2136                                                if is_expanded
2137                                                    || metadata.line_count
2138                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2139                                                {
2140                                                    return el;
2141                                                }
2142                                                el.child(
2143                                                    div()
2144                                                        .absolute()
2145                                                        .bottom_0()
2146                                                        .left_0()
2147                                                        .w_full()
2148                                                        .h_1_4()
2149                                                        .rounded_b_lg()
2150                                                        .bg(linear_gradient(
2151                                                            0.,
2152                                                            linear_color_stop(editor_bg, 0.),
2153                                                            linear_color_stop(
2154                                                                editor_bg.opacity(0.),
2155                                                                1.,
2156                                                            ),
2157                                                        )),
2158                                                )
2159                                            }
2160                                        })),
2161                                    },
2162                                )
2163                            } else {
2164                                markdown_element.code_block_renderer(
2165                                    markdown::CodeBlockRenderer::Default {
2166                                        copy_button: false,
2167                                        border: true,
2168                                    },
2169                                )
2170                            };
2171
2172                            div()
2173                                .child(markdown_element.on_url_click({
2174                                    let workspace = self.workspace.clone();
2175                                    move |text, window, cx| {
2176                                        open_markdown_link(text, workspace.clone(), window, cx);
2177                                    }
2178                                }))
2179                                .into_any_element()
2180                        }
2181                    },
2182                ),
2183            )
2184    }
2185
2186    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2187        cx.theme().colors().border.opacity(0.5)
2188    }
2189
2190    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2191        cx.theme()
2192            .colors()
2193            .element_background
2194            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2195    }
2196
2197    fn render_message_thinking_segment(
2198        &self,
2199        message_id: MessageId,
2200        ix: usize,
2201        markdown: Entity<Markdown>,
2202        scroll_handle: &ScrollHandle,
2203        pending: bool,
2204        window: &Window,
2205        cx: &Context<Self>,
2206    ) -> impl IntoElement {
2207        let is_open = self
2208            .expanded_thinking_segments
2209            .get(&(message_id, ix))
2210            .copied()
2211            .unwrap_or_default();
2212
2213        let editor_bg = cx.theme().colors().panel_background;
2214
2215        div().map(|this| {
2216            if pending {
2217                this.v_flex()
2218                    .mt_neg_2()
2219                    .mb_1p5()
2220                    .child(
2221                        h_flex()
2222                            .group("disclosure-header")
2223                            .justify_between()
2224                            .child(
2225                                h_flex()
2226                                    .gap_1p5()
2227                                    .child(
2228                                        Icon::new(IconName::LightBulb)
2229                                            .size(IconSize::XSmall)
2230                                            .color(Color::Muted),
2231                                    )
2232                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2233                            )
2234                            .child(
2235                                h_flex()
2236                                    .gap_1()
2237                                    .child(
2238                                        div().visible_on_hover("disclosure-header").child(
2239                                            Disclosure::new("thinking-disclosure", is_open)
2240                                                .opened_icon(IconName::ChevronUp)
2241                                                .closed_icon(IconName::ChevronDown)
2242                                                .on_click(cx.listener({
2243                                                    move |this, _event, _window, _cx| {
2244                                                        let is_open = this
2245                                                            .expanded_thinking_segments
2246                                                            .entry((message_id, ix))
2247                                                            .or_insert(false);
2248
2249                                                        *is_open = !*is_open;
2250                                                    }
2251                                                })),
2252                                        ),
2253                                    )
2254                                    .child({
2255                                        Icon::new(IconName::ArrowCircle)
2256                                            .color(Color::Accent)
2257                                            .size(IconSize::Small)
2258                                            .with_animation(
2259                                                "arrow-circle",
2260                                                Animation::new(Duration::from_secs(2)).repeat(),
2261                                                |icon, delta| {
2262                                                    icon.transform(Transformation::rotate(
2263                                                        percentage(delta),
2264                                                    ))
2265                                                },
2266                                            )
2267                                    }),
2268                            ),
2269                    )
2270                    .when(!is_open, |this| {
2271                        let gradient_overlay = div()
2272                            .rounded_b_lg()
2273                            .h_full()
2274                            .absolute()
2275                            .w_full()
2276                            .bottom_0()
2277                            .left_0()
2278                            .bg(linear_gradient(
2279                                180.,
2280                                linear_color_stop(editor_bg, 1.),
2281                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2282                            ));
2283
2284                        this.child(
2285                            div()
2286                                .relative()
2287                                .bg(editor_bg)
2288                                .rounded_b_lg()
2289                                .mt_2()
2290                                .pl_4()
2291                                .child(
2292                                    div()
2293                                        .id(("thinking-content", ix))
2294                                        .max_h_20()
2295                                        .track_scroll(scroll_handle)
2296                                        .text_ui_sm(cx)
2297                                        .overflow_hidden()
2298                                        .child(
2299                                            MarkdownElement::new(
2300                                                markdown.clone(),
2301                                                default_markdown_style(window, cx),
2302                                            )
2303                                            .on_url_click({
2304                                                let workspace = self.workspace.clone();
2305                                                move |text, window, cx| {
2306                                                    open_markdown_link(
2307                                                        text,
2308                                                        workspace.clone(),
2309                                                        window,
2310                                                        cx,
2311                                                    );
2312                                                }
2313                                            }),
2314                                        ),
2315                                )
2316                                .child(gradient_overlay),
2317                        )
2318                    })
2319                    .when(is_open, |this| {
2320                        this.child(
2321                            div()
2322                                .id(("thinking-content", ix))
2323                                .h_full()
2324                                .bg(editor_bg)
2325                                .text_ui_sm(cx)
2326                                .child(
2327                                    MarkdownElement::new(
2328                                        markdown.clone(),
2329                                        default_markdown_style(window, cx),
2330                                    )
2331                                    .on_url_click({
2332                                        let workspace = self.workspace.clone();
2333                                        move |text, window, cx| {
2334                                            open_markdown_link(text, workspace.clone(), window, cx);
2335                                        }
2336                                    }),
2337                                ),
2338                        )
2339                    })
2340            } else {
2341                this.v_flex()
2342                    .mt_neg_2()
2343                    .child(
2344                        h_flex()
2345                            .group("disclosure-header")
2346                            .pr_1()
2347                            .justify_between()
2348                            .opacity(0.8)
2349                            .hover(|style| style.opacity(1.))
2350                            .child(
2351                                h_flex()
2352                                    .gap_1p5()
2353                                    .child(
2354                                        Icon::new(IconName::LightBulb)
2355                                            .size(IconSize::XSmall)
2356                                            .color(Color::Muted),
2357                                    )
2358                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2359                            )
2360                            .child(
2361                                div().visible_on_hover("disclosure-header").child(
2362                                    Disclosure::new("thinking-disclosure", is_open)
2363                                        .opened_icon(IconName::ChevronUp)
2364                                        .closed_icon(IconName::ChevronDown)
2365                                        .on_click(cx.listener({
2366                                            move |this, _event, _window, _cx| {
2367                                                let is_open = this
2368                                                    .expanded_thinking_segments
2369                                                    .entry((message_id, ix))
2370                                                    .or_insert(false);
2371
2372                                                *is_open = !*is_open;
2373                                            }
2374                                        })),
2375                                ),
2376                            ),
2377                    )
2378                    .child(
2379                        div()
2380                            .id(("thinking-content", ix))
2381                            .relative()
2382                            .mt_1p5()
2383                            .ml_1p5()
2384                            .pl_2p5()
2385                            .border_l_1()
2386                            .border_color(cx.theme().colors().border_variant)
2387                            .text_ui_sm(cx)
2388                            .when(is_open, |this| {
2389                                this.child(
2390                                    MarkdownElement::new(
2391                                        markdown.clone(),
2392                                        default_markdown_style(window, cx),
2393                                    )
2394                                    .on_url_click({
2395                                        let workspace = self.workspace.clone();
2396                                        move |text, window, cx| {
2397                                            open_markdown_link(text, workspace.clone(), window, cx);
2398                                        }
2399                                    }),
2400                                )
2401                            }),
2402                    )
2403            }
2404        })
2405    }
2406
2407    fn render_tool_use(
2408        &self,
2409        tool_use: ToolUse,
2410        window: &mut Window,
2411        workspace: WeakEntity<Workspace>,
2412        cx: &mut Context<Self>,
2413    ) -> impl IntoElement + use<> {
2414        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2415            return card.render(&tool_use.status, window, workspace, cx);
2416        }
2417
2418        let is_open = self
2419            .expanded_tool_uses
2420            .get(&tool_use.id)
2421            .copied()
2422            .unwrap_or_default();
2423
2424        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2425
2426        let fs = self
2427            .workspace
2428            .upgrade()
2429            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2430        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2431        let needs_confirmation_tools = tool_use.needs_confirmation;
2432
2433        let status_icons = div().child(match &tool_use.status {
2434            ToolUseStatus::NeedsConfirmation => {
2435                let icon = Icon::new(IconName::Warning)
2436                    .color(Color::Warning)
2437                    .size(IconSize::Small);
2438                icon.into_any_element()
2439            }
2440            ToolUseStatus::Pending
2441            | ToolUseStatus::InputStillStreaming
2442            | ToolUseStatus::Running => {
2443                let icon = Icon::new(IconName::ArrowCircle)
2444                    .color(Color::Accent)
2445                    .size(IconSize::Small);
2446                icon.with_animation(
2447                    "arrow-circle",
2448                    Animation::new(Duration::from_secs(2)).repeat(),
2449                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2450                )
2451                .into_any_element()
2452            }
2453            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2454            ToolUseStatus::Error(_) => {
2455                let icon = Icon::new(IconName::Close)
2456                    .color(Color::Error)
2457                    .size(IconSize::Small);
2458                icon.into_any_element()
2459            }
2460        });
2461
2462        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2463        let results_content_container = || v_flex().p_2().gap_0p5();
2464
2465        let results_content = v_flex()
2466            .gap_1()
2467            .child(
2468                results_content_container()
2469                    .child(
2470                        Label::new("Input")
2471                            .size(LabelSize::XSmall)
2472                            .color(Color::Muted)
2473                            .buffer_font(cx),
2474                    )
2475                    .child(
2476                        div()
2477                            .w_full()
2478                            .text_ui_sm(cx)
2479                            .children(rendered_tool_use.as_ref().map(|rendered| {
2480                                MarkdownElement::new(
2481                                    rendered.input.clone(),
2482                                    tool_use_markdown_style(window, cx),
2483                                )
2484                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2485                                    copy_button: false,
2486                                    border: false,
2487                                })
2488                                .on_url_click({
2489                                    let workspace = self.workspace.clone();
2490                                    move |text, window, cx| {
2491                                        open_markdown_link(text, workspace.clone(), window, cx);
2492                                    }
2493                                })
2494                            })),
2495                    ),
2496            )
2497            .map(|container| match tool_use.status {
2498                ToolUseStatus::Finished(_) => container.child(
2499                    results_content_container()
2500                        .border_t_1()
2501                        .border_color(self.tool_card_border_color(cx))
2502                        .child(
2503                            Label::new("Result")
2504                                .size(LabelSize::XSmall)
2505                                .color(Color::Muted)
2506                                .buffer_font(cx),
2507                        )
2508                        .child(div().w_full().text_ui_sm(cx).children(
2509                            rendered_tool_use.as_ref().map(|rendered| {
2510                                MarkdownElement::new(
2511                                    rendered.output.clone(),
2512                                    tool_use_markdown_style(window, cx),
2513                                )
2514                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2515                                    copy_button: false,
2516                                    border: false,
2517                                })
2518                                .on_url_click({
2519                                    let workspace = self.workspace.clone();
2520                                    move |text, window, cx| {
2521                                        open_markdown_link(text, workspace.clone(), window, cx);
2522                                    }
2523                                })
2524                                .into_any_element()
2525                            }),
2526                        )),
2527                ),
2528                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2529                    results_content_container()
2530                        .border_t_1()
2531                        .border_color(self.tool_card_border_color(cx))
2532                        .child(
2533                            h_flex()
2534                                .gap_1()
2535                                .child(
2536                                    Icon::new(IconName::ArrowCircle)
2537                                        .size(IconSize::Small)
2538                                        .color(Color::Accent)
2539                                        .with_animation(
2540                                            "arrow-circle",
2541                                            Animation::new(Duration::from_secs(2)).repeat(),
2542                                            |icon, delta| {
2543                                                icon.transform(Transformation::rotate(percentage(
2544                                                    delta,
2545                                                )))
2546                                            },
2547                                        ),
2548                                )
2549                                .child(
2550                                    Label::new("Running…")
2551                                        .size(LabelSize::XSmall)
2552                                        .color(Color::Muted)
2553                                        .buffer_font(cx),
2554                                ),
2555                        ),
2556                ),
2557                ToolUseStatus::Error(_) => container.child(
2558                    results_content_container()
2559                        .border_t_1()
2560                        .border_color(self.tool_card_border_color(cx))
2561                        .child(
2562                            Label::new("Error")
2563                                .size(LabelSize::XSmall)
2564                                .color(Color::Muted)
2565                                .buffer_font(cx),
2566                        )
2567                        .child(
2568                            div()
2569                                .text_ui_sm(cx)
2570                                .children(rendered_tool_use.as_ref().map(|rendered| {
2571                                    MarkdownElement::new(
2572                                        rendered.output.clone(),
2573                                        tool_use_markdown_style(window, cx),
2574                                    )
2575                                    .on_url_click({
2576                                        let workspace = self.workspace.clone();
2577                                        move |text, window, cx| {
2578                                            open_markdown_link(text, workspace.clone(), window, cx);
2579                                        }
2580                                    })
2581                                    .into_any_element()
2582                                })),
2583                        ),
2584                ),
2585                ToolUseStatus::Pending => container,
2586                ToolUseStatus::NeedsConfirmation => container.child(
2587                    results_content_container()
2588                        .border_t_1()
2589                        .border_color(self.tool_card_border_color(cx))
2590                        .child(
2591                            Label::new("Asking Permission")
2592                                .size(LabelSize::Small)
2593                                .color(Color::Muted)
2594                                .buffer_font(cx),
2595                        ),
2596                ),
2597            });
2598
2599        let gradient_overlay = |color: Hsla| {
2600            div()
2601                .h_full()
2602                .absolute()
2603                .w_12()
2604                .bottom_0()
2605                .map(|element| {
2606                    if is_status_finished {
2607                        element.right_6()
2608                    } else {
2609                        element.right(px(44.))
2610                    }
2611                })
2612                .bg(linear_gradient(
2613                    90.,
2614                    linear_color_stop(color, 1.),
2615                    linear_color_stop(color.opacity(0.2), 0.),
2616                ))
2617        };
2618
2619        v_flex().gap_1().mb_2().map(|element| {
2620            if !needs_confirmation_tools {
2621                element.child(
2622                    v_flex()
2623                        .child(
2624                            h_flex()
2625                                .group("disclosure-header")
2626                                .relative()
2627                                .gap_1p5()
2628                                .justify_between()
2629                                .opacity(0.8)
2630                                .hover(|style| style.opacity(1.))
2631                                .when(!is_status_finished, |this| this.pr_2())
2632                                .child(
2633                                    h_flex()
2634                                        .id("tool-label-container")
2635                                        .gap_1p5()
2636                                        .max_w_full()
2637                                        .overflow_x_scroll()
2638                                        .child(
2639                                            Icon::new(tool_use.icon)
2640                                                .size(IconSize::XSmall)
2641                                                .color(Color::Muted),
2642                                        )
2643                                        .child(
2644                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2645                                                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| {
2646                                                    open_markdown_link(text, workspace.clone(), window, cx);
2647                                                }}))
2648                                            ),
2649                                        ),
2650                                )
2651                                .child(
2652                                    h_flex()
2653                                        .gap_1()
2654                                        .child(
2655                                            div().visible_on_hover("disclosure-header").child(
2656                                                Disclosure::new("tool-use-disclosure", is_open)
2657                                                    .opened_icon(IconName::ChevronUp)
2658                                                    .closed_icon(IconName::ChevronDown)
2659                                                    .on_click(cx.listener({
2660                                                        let tool_use_id = tool_use.id.clone();
2661                                                        move |this, _event, _window, _cx| {
2662                                                            let is_open = this
2663                                                                .expanded_tool_uses
2664                                                                .entry(tool_use_id.clone())
2665                                                                .or_insert(false);
2666
2667                                                            *is_open = !*is_open;
2668                                                        }
2669                                                    })),
2670                                            ),
2671                                        )
2672                                        .child(status_icons),
2673                                )
2674                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2675                        )
2676                        .map(|parent| {
2677                            if !is_open {
2678                                return parent;
2679                            }
2680
2681                            parent.child(
2682                                v_flex()
2683                                    .mt_1()
2684                                    .border_1()
2685                                    .border_color(self.tool_card_border_color(cx))
2686                                    .bg(cx.theme().colors().editor_background)
2687                                    .rounded_lg()
2688                                    .child(results_content),
2689                            )
2690                        }),
2691                )
2692            } else {
2693                v_flex()
2694                    .mb_2()
2695                    .rounded_lg()
2696                    .border_1()
2697                    .border_color(self.tool_card_border_color(cx))
2698                    .overflow_hidden()
2699                    .child(
2700                        h_flex()
2701                            .group("disclosure-header")
2702                            .relative()
2703                            .justify_between()
2704                            .py_1()
2705                            .map(|element| {
2706                                if is_status_finished {
2707                                    element.pl_2().pr_0p5()
2708                                } else {
2709                                    element.px_2()
2710                                }
2711                            })
2712                            .bg(self.tool_card_header_bg(cx))
2713                            .map(|element| {
2714                                if is_open {
2715                                    element.border_b_1().rounded_t_md()
2716                                } else if needs_confirmation {
2717                                    element.rounded_t_md()
2718                                } else {
2719                                    element.rounded_md()
2720                                }
2721                            })
2722                            .border_color(self.tool_card_border_color(cx))
2723                            .child(
2724                                h_flex()
2725                                    .id("tool-label-container")
2726                                    .gap_1p5()
2727                                    .max_w_full()
2728                                    .overflow_x_scroll()
2729                                    .child(
2730                                        Icon::new(tool_use.icon)
2731                                            .size(IconSize::XSmall)
2732                                            .color(Color::Muted),
2733                                    )
2734                                    .child(
2735                                        h_flex().pr_8().text_ui_sm(cx).children(
2736                                            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| {
2737                                                open_markdown_link(text, workspace.clone(), window, cx);
2738                                            }}))
2739                                        ),
2740                                    ),
2741                            )
2742                            .child(
2743                                h_flex()
2744                                    .gap_1()
2745                                    .child(
2746                                        div().visible_on_hover("disclosure-header").child(
2747                                            Disclosure::new("tool-use-disclosure", is_open)
2748                                                .opened_icon(IconName::ChevronUp)
2749                                                .closed_icon(IconName::ChevronDown)
2750                                                .on_click(cx.listener({
2751                                                    let tool_use_id = tool_use.id.clone();
2752                                                    move |this, _event, _window, _cx| {
2753                                                        let is_open = this
2754                                                            .expanded_tool_uses
2755                                                            .entry(tool_use_id.clone())
2756                                                            .or_insert(false);
2757
2758                                                        *is_open = !*is_open;
2759                                                    }
2760                                                })),
2761                                        ),
2762                                    )
2763                                    .child(status_icons),
2764                            )
2765                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2766                    )
2767                    .map(|parent| {
2768                        if !is_open {
2769                            return parent;
2770                        }
2771
2772                        parent.child(
2773                            v_flex()
2774                                .bg(cx.theme().colors().editor_background)
2775                                .map(|element| {
2776                                    if  needs_confirmation {
2777                                        element.rounded_none()
2778                                    } else {
2779                                        element.rounded_b_lg()
2780                                    }
2781                                })
2782                                .child(results_content),
2783                        )
2784                    })
2785                    .when(needs_confirmation, |this| {
2786                        this.child(
2787                            h_flex()
2788                                .py_1()
2789                                .pl_2()
2790                                .pr_1()
2791                                .gap_1()
2792                                .justify_between()
2793                                .bg(cx.theme().colors().editor_background)
2794                                .border_t_1()
2795                                .border_color(self.tool_card_border_color(cx))
2796                                .rounded_b_lg()
2797                                .child(
2798                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
2799                                )
2800                                .child(
2801                                    h_flex()
2802                                        .gap_0p5()
2803                                        .child({
2804                                            let tool_id = tool_use.id.clone();
2805                                            Button::new(
2806                                                "always-allow-tool-action",
2807                                                "Always Allow",
2808                                            )
2809                                            .label_size(LabelSize::Small)
2810                                            .icon(IconName::CheckDouble)
2811                                            .icon_position(IconPosition::Start)
2812                                            .icon_size(IconSize::Small)
2813                                            .icon_color(Color::Success)
2814                                            .tooltip(move |window, cx|  {
2815                                                Tooltip::with_meta(
2816                                                    "Never ask for permission",
2817                                                    None,
2818                                                    "Restore the original behavior in your Agent Panel settings",
2819                                                    window,
2820                                                    cx,
2821                                                )
2822                                            })
2823                                            .on_click(cx.listener(
2824                                                move |this, event, window, cx| {
2825                                                    if let Some(fs) = fs.clone() {
2826                                                        update_settings_file::<AssistantSettings>(
2827                                                            fs.clone(),
2828                                                            cx,
2829                                                            |settings, _| {
2830                                                                settings.set_always_allow_tool_actions(true);
2831                                                            },
2832                                                        );
2833                                                    }
2834                                                    this.handle_allow_tool(
2835                                                        tool_id.clone(),
2836                                                        event,
2837                                                        window,
2838                                                        cx,
2839                                                    )
2840                                                },
2841                                            ))
2842                                        })
2843                                        .child(ui::Divider::vertical())
2844                                        .child({
2845                                            let tool_id = tool_use.id.clone();
2846                                            Button::new("allow-tool-action", "Allow")
2847                                                .label_size(LabelSize::Small)
2848                                                .icon(IconName::Check)
2849                                                .icon_position(IconPosition::Start)
2850                                                .icon_size(IconSize::Small)
2851                                                .icon_color(Color::Success)
2852                                                .on_click(cx.listener(
2853                                                    move |this, event, window, cx| {
2854                                                        this.handle_allow_tool(
2855                                                            tool_id.clone(),
2856                                                            event,
2857                                                            window,
2858                                                            cx,
2859                                                        )
2860                                                    },
2861                                                ))
2862                                        })
2863                                        .child({
2864                                            let tool_id = tool_use.id.clone();
2865                                            let tool_name: Arc<str> = tool_use.name.into();
2866                                            Button::new("deny-tool", "Deny")
2867                                                .label_size(LabelSize::Small)
2868                                                .icon(IconName::Close)
2869                                                .icon_position(IconPosition::Start)
2870                                                .icon_size(IconSize::Small)
2871                                                .icon_color(Color::Error)
2872                                                .on_click(cx.listener(
2873                                                    move |this, event, window, cx| {
2874                                                        this.handle_deny_tool(
2875                                                            tool_id.clone(),
2876                                                            tool_name.clone(),
2877                                                            event,
2878                                                            window,
2879                                                            cx,
2880                                                        )
2881                                                    },
2882                                                ))
2883                                        }),
2884                                ),
2885                        )
2886                    })
2887            }
2888        }).into_any_element()
2889    }
2890
2891    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
2892        let project_context = self.thread.read(cx).project_context();
2893        let project_context = project_context.borrow();
2894        let Some(project_context) = project_context.as_ref() else {
2895            return div().into_any();
2896        };
2897
2898        let user_rules_text = if project_context.user_rules.is_empty() {
2899            None
2900        } else if project_context.user_rules.len() == 1 {
2901            let user_rules = &project_context.user_rules[0];
2902
2903            match user_rules.title.as_ref() {
2904                Some(title) => Some(format!("Using \"{title}\" user rule")),
2905                None => Some("Using user rule".into()),
2906            }
2907        } else {
2908            Some(format!(
2909                "Using {} user rules",
2910                project_context.user_rules.len()
2911            ))
2912        };
2913
2914        let first_user_rules_id = project_context
2915            .user_rules
2916            .first()
2917            .map(|user_rules| user_rules.uuid.0);
2918
2919        let rules_files = project_context
2920            .worktrees
2921            .iter()
2922            .filter_map(|worktree| worktree.rules_file.as_ref())
2923            .collect::<Vec<_>>();
2924
2925        let rules_file_text = match rules_files.as_slice() {
2926            &[] => None,
2927            &[rules_file] => Some(format!(
2928                "Using project {:?} file",
2929                rules_file.path_in_worktree
2930            )),
2931            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
2932        };
2933
2934        if user_rules_text.is_none() && rules_file_text.is_none() {
2935            return div().into_any();
2936        }
2937
2938        v_flex()
2939            .pt_2()
2940            .px_2p5()
2941            .gap_1()
2942            .when_some(user_rules_text, |parent, user_rules_text| {
2943                parent.child(
2944                    h_flex()
2945                        .w_full()
2946                        .child(
2947                            Icon::new(RULES_ICON)
2948                                .size(IconSize::XSmall)
2949                                .color(Color::Disabled),
2950                        )
2951                        .child(
2952                            Label::new(user_rules_text)
2953                                .size(LabelSize::XSmall)
2954                                .color(Color::Muted)
2955                                .truncate()
2956                                .buffer_font(cx)
2957                                .ml_1p5()
2958                                .mr_0p5(),
2959                        )
2960                        .child(
2961                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
2962                                .shape(ui::IconButtonShape::Square)
2963                                .icon_size(IconSize::XSmall)
2964                                .icon_color(Color::Ignored)
2965                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
2966                                .tooltip(Tooltip::text("View User Rules"))
2967                                .on_click(move |_event, window, cx| {
2968                                    window.dispatch_action(
2969                                        Box::new(OpenRulesLibrary {
2970                                            prompt_to_select: first_user_rules_id,
2971                                        }),
2972                                        cx,
2973                                    )
2974                                }),
2975                        ),
2976                )
2977            })
2978            .when_some(rules_file_text, |parent, rules_file_text| {
2979                parent.child(
2980                    h_flex()
2981                        .w_full()
2982                        .child(
2983                            Icon::new(IconName::File)
2984                                .size(IconSize::XSmall)
2985                                .color(Color::Disabled),
2986                        )
2987                        .child(
2988                            Label::new(rules_file_text)
2989                                .size(LabelSize::XSmall)
2990                                .color(Color::Muted)
2991                                .buffer_font(cx)
2992                                .ml_1p5()
2993                                .mr_0p5(),
2994                        )
2995                        .child(
2996                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
2997                                .shape(ui::IconButtonShape::Square)
2998                                .icon_size(IconSize::XSmall)
2999                                .icon_color(Color::Ignored)
3000                                .on_click(cx.listener(Self::handle_open_rules))
3001                                .tooltip(Tooltip::text("View Rules")),
3002                        ),
3003                )
3004            })
3005            .into_any()
3006    }
3007
3008    fn handle_allow_tool(
3009        &mut self,
3010        tool_use_id: LanguageModelToolUseId,
3011        _: &ClickEvent,
3012        window: &mut Window,
3013        cx: &mut Context<Self>,
3014    ) {
3015        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3016            .thread
3017            .read(cx)
3018            .pending_tool(&tool_use_id)
3019            .map(|tool_use| tool_use.status.clone())
3020        {
3021            self.thread.update(cx, |thread, cx| {
3022                thread.run_tool(
3023                    c.tool_use_id.clone(),
3024                    c.ui_text.clone(),
3025                    c.input.clone(),
3026                    &c.messages,
3027                    c.tool.clone(),
3028                    Some(window.window_handle()),
3029                    cx,
3030                );
3031            });
3032        }
3033    }
3034
3035    fn handle_deny_tool(
3036        &mut self,
3037        tool_use_id: LanguageModelToolUseId,
3038        tool_name: Arc<str>,
3039        _: &ClickEvent,
3040        window: &mut Window,
3041        cx: &mut Context<Self>,
3042    ) {
3043        let window_handle = window.window_handle();
3044        self.thread.update(cx, |thread, cx| {
3045            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3046        });
3047    }
3048
3049    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3050        let project_context = self.thread.read(cx).project_context();
3051        let project_context = project_context.borrow();
3052        let Some(project_context) = project_context.as_ref() else {
3053            return;
3054        };
3055
3056        let abs_paths = project_context
3057            .worktrees
3058            .iter()
3059            .flat_map(|worktree| worktree.rules_file.as_ref())
3060            .map(|rules_file| rules_file.abs_path.to_path_buf())
3061            .collect::<Vec<_>>();
3062
3063        if let Ok(task) = self.workspace.update(cx, move |workspace, cx| {
3064            // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3065            // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3066            // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3067            workspace.open_paths(abs_paths, OpenOptions::default(), None, window, cx)
3068        }) {
3069            task.detach();
3070        }
3071    }
3072
3073    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3074        for window in self.notifications.drain(..) {
3075            window
3076                .update(cx, |_, window, _| {
3077                    window.remove_window();
3078                })
3079                .ok();
3080
3081            self.notification_subscriptions.remove(&window);
3082        }
3083    }
3084
3085    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3086        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3087            return None;
3088        }
3089
3090        Some(
3091            div()
3092                .occlude()
3093                .id("active-thread-scrollbar")
3094                .on_mouse_move(cx.listener(|_, _, _, cx| {
3095                    cx.notify();
3096                    cx.stop_propagation()
3097                }))
3098                .on_hover(|_, _, cx| {
3099                    cx.stop_propagation();
3100                })
3101                .on_any_mouse_down(|_, _, cx| {
3102                    cx.stop_propagation();
3103                })
3104                .on_mouse_up(
3105                    MouseButton::Left,
3106                    cx.listener(|_, _, _, cx| {
3107                        cx.stop_propagation();
3108                    }),
3109                )
3110                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3111                    cx.notify();
3112                }))
3113                .h_full()
3114                .absolute()
3115                .right_1()
3116                .top_1()
3117                .bottom_0()
3118                .w(px(12.))
3119                .cursor_default()
3120                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3121        )
3122    }
3123
3124    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3125        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3126        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3127            cx.background_executor()
3128                .timer(SCROLLBAR_SHOW_INTERVAL)
3129                .await;
3130            thread
3131                .update(cx, |thread, cx| {
3132                    if !thread.scrollbar_state.is_dragging() {
3133                        thread.show_scrollbar = false;
3134                        cx.notify();
3135                    }
3136                })
3137                .log_err();
3138        }))
3139    }
3140}
3141
3142pub enum ActiveThreadEvent {
3143    EditingMessageTokenCountChanged,
3144}
3145
3146impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3147
3148impl Render for ActiveThread {
3149    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3150        v_flex()
3151            .size_full()
3152            .relative()
3153            .on_mouse_move(cx.listener(|this, _, _, cx| {
3154                this.show_scrollbar = true;
3155                this.hide_scrollbar_later(cx);
3156                cx.notify();
3157            }))
3158            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3159                this.show_scrollbar = true;
3160                this.hide_scrollbar_later(cx);
3161                cx.notify();
3162            }))
3163            .on_mouse_up(
3164                MouseButton::Left,
3165                cx.listener(|this, _, _, cx| {
3166                    this.hide_scrollbar_later(cx);
3167                }),
3168            )
3169            .child(list(self.list_state.clone()).flex_grow())
3170            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3171                this.child(scrollbar)
3172            })
3173    }
3174}
3175
3176pub(crate) fn open_context(
3177    context: &AgentContext,
3178    workspace: Entity<Workspace>,
3179    window: &mut Window,
3180    cx: &mut App,
3181) {
3182    match context {
3183        AgentContext::File(file_context) => {
3184            if let Some(project_path) = file_context.project_path(cx) {
3185                workspace.update(cx, |workspace, cx| {
3186                    workspace
3187                        .open_path(project_path, None, true, window, cx)
3188                        .detach_and_log_err(cx);
3189                });
3190            }
3191        }
3192
3193        AgentContext::Directory(directory_context) => {
3194            let entry_id = directory_context.entry_id;
3195            workspace.update(cx, |workspace, cx| {
3196                workspace.project().update(cx, |_project, cx| {
3197                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3198                })
3199            })
3200        }
3201
3202        AgentContext::Symbol(symbol_context) => {
3203            let buffer = symbol_context.buffer.read(cx);
3204            if let Some(project_path) = buffer.project_path(cx) {
3205                let snapshot = buffer.snapshot();
3206                let target_position = symbol_context.range.start.to_point(&snapshot);
3207                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3208                    .detach();
3209            }
3210        }
3211
3212        AgentContext::Selection(selection_context) => {
3213            let buffer = selection_context.buffer.read(cx);
3214            if let Some(project_path) = buffer.project_path(cx) {
3215                let snapshot = buffer.snapshot();
3216                let target_position = selection_context.range.start.to_point(&snapshot);
3217
3218                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3219                    .detach();
3220            }
3221        }
3222
3223        AgentContext::FetchedUrl(fetched_url_context) => {
3224            cx.open_url(&fetched_url_context.url);
3225        }
3226
3227        AgentContext::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3228            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3229                panel.update(cx, |panel, cx| {
3230                    let thread_id = thread_context.thread.read(cx).id().clone();
3231                    panel
3232                        .open_thread(&thread_id, window, cx)
3233                        .detach_and_log_err(cx)
3234                });
3235            }
3236        }),
3237
3238        AgentContext::Rules(rules_context) => window.dispatch_action(
3239            Box::new(OpenRulesLibrary {
3240                prompt_to_select: Some(rules_context.prompt_id.0),
3241            }),
3242            cx,
3243        ),
3244
3245        AgentContext::Image(_) => {}
3246    }
3247}
3248
3249fn open_editor_at_position(
3250    project_path: project::ProjectPath,
3251    target_position: Point,
3252    workspace: &Entity<Workspace>,
3253    window: &mut Window,
3254    cx: &mut App,
3255) -> Task<()> {
3256    let open_task = workspace.update(cx, |workspace, cx| {
3257        workspace.open_path(project_path, None, true, window, cx)
3258    });
3259    window.spawn(cx, async move |cx| {
3260        if let Some(active_editor) = open_task
3261            .await
3262            .log_err()
3263            .and_then(|item| item.downcast::<Editor>())
3264        {
3265            active_editor
3266                .downgrade()
3267                .update_in(cx, |editor, window, cx| {
3268                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3269                })
3270                .log_err();
3271        }
3272    })
3273}