active_thread.rs

   1use crate::context::{AssistantContext, ContextId, RULES_ICON, format_context_as_string};
   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::{AddedContext, AgentNotification, AgentNotificationEvent, ContextPill};
  10use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  11use anyhow::Context as _;
  12use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  13use assistant_tool::ToolUseStatus;
  14use collections::{HashMap, HashSet};
  15use editor::scroll::Autoscroll;
  16use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  17use gpui::{
  18    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardItem,
  19    DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla, ListAlignment,
  20    ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful, StyleRefinement, Subscription,
  21    Task, TextStyle, TextStyleRefinement, Transformation, UnderlineStyle, WeakEntity, WindowHandle,
  22    linear_color_stop, linear_gradient, list, percentage, pulsating_between,
  23};
  24use language::{Buffer, LanguageRegistry};
  25use language_model::{
  26    LanguageModelRegistry, LanguageModelRequestMessage, LanguageModelToolUseId, RequestUsage, Role,
  27    StopReason,
  28};
  29use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  30use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  31use project::ProjectItem as _;
  32use rope::Point;
  33use settings::{Settings as _, update_settings_file};
  34use std::path::Path;
  35use std::rc::Rc;
  36use std::sync::Arc;
  37use std::time::Duration;
  38use text::ToPoint;
  39use theme::ThemeSettings;
  40use ui::{
  41    Disclosure, IconButton, KeyBinding, Scrollbar, ScrollbarState, TextSize, Tooltip, prelude::*,
  42};
  43use util::ResultExt as _;
  44use workspace::{OpenOptions, Workspace};
  45use zed_actions::assistant::OpenPromptLibrary;
  46
  47use crate::context_store::ContextStore;
  48
  49pub struct ActiveThread {
  50    language_registry: Arc<LanguageRegistry>,
  51    thread_store: Entity<ThreadStore>,
  52    thread: Entity<Thread>,
  53    context_store: Entity<ContextStore>,
  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                                    if let Some(project_path) = workspace
 435                                        .project()
 436                                        .read(cx)
 437                                        .find_project_path(&path_range.path, cx)
 438                                    {
 439                                        let target = path_range.range.as_ref().map(|range| {
 440                                            Point::new(
 441                                                // Line number is 1-based
 442                                                range.start.line.saturating_sub(1),
 443                                                range.start.col.unwrap_or(0),
 444                                            )
 445                                        });
 446                                        let open_task = workspace.open_path(
 447                                            project_path,
 448                                            None,
 449                                            true,
 450                                            window,
 451                                            cx,
 452                                        );
 453                                        window
 454                                            .spawn(cx, async move |cx| {
 455                                                let item = open_task.await?;
 456                                                if let Some(target) = target {
 457                                                    if let Some(active_editor) =
 458                                                        item.downcast::<Editor>()
 459                                                    {
 460                                                        active_editor
 461                                                            .downgrade()
 462                                                            .update_in(cx, |editor, window, cx| {
 463                                                                editor
 464                                                                    .go_to_singleton_buffer_point(
 465                                                                        target, window, cx,
 466                                                                    );
 467                                                            })
 468                                                            .log_err();
 469                                                    }
 470                                                }
 471                                                anyhow::Ok(())
 472                                            })
 473                                            .detach_and_log_err(cx);
 474                                    }
 475                                }
 476                            })
 477                            .ok();
 478                    }
 479                })
 480                .into_any_element()
 481        }),
 482    };
 483
 484    let codeblock_was_copied = active_thread
 485        .read(cx)
 486        .copied_code_block_ids
 487        .contains(&(message_id, ix));
 488
 489    let is_expanded = active_thread
 490        .read(cx)
 491        .expanded_code_blocks
 492        .get(&(message_id, ix))
 493        .copied()
 494        .unwrap_or(false);
 495
 496    let codeblock_header_bg = cx
 497        .theme()
 498        .colors()
 499        .element_background
 500        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 501
 502    let codeblock_header = h_flex()
 503        .py_1()
 504        .pl_1p5()
 505        .pr_1()
 506        .gap_1()
 507        .justify_between()
 508        .border_b_1()
 509        .border_color(cx.theme().colors().border.opacity(0.6))
 510        .bg(codeblock_header_bg)
 511        .rounded_t_md()
 512        .children(label)
 513        .child(
 514            h_flex()
 515                .gap_1()
 516                .child(
 517                    div().visible_on_hover("codeblock_container").child(
 518                        IconButton::new(
 519                            ("copy-markdown-code", ix),
 520                            if codeblock_was_copied {
 521                                IconName::Check
 522                            } else {
 523                                IconName::Copy
 524                            },
 525                        )
 526                        .icon_color(Color::Muted)
 527                        .shape(ui::IconButtonShape::Square)
 528                        .tooltip(Tooltip::text("Copy Code"))
 529                        .on_click({
 530                            let active_thread = active_thread.clone();
 531                            let parsed_markdown = parsed_markdown.clone();
 532                            let code_block_range = metadata.content_range.clone();
 533                            move |_event, _window, cx| {
 534                                active_thread.update(cx, |this, cx| {
 535                                    this.copied_code_block_ids.insert((message_id, ix));
 536
 537                                    let code = parsed_markdown.source()[code_block_range.clone()]
 538                                        .to_string();
 539                                    cx.write_to_clipboard(ClipboardItem::new_string(code));
 540
 541                                    cx.spawn(async move |this, cx| {
 542                                        cx.background_executor()
 543                                            .timer(Duration::from_secs(2))
 544                                            .await;
 545
 546                                        cx.update(|cx| {
 547                                            this.update(cx, |this, cx| {
 548                                                this.copied_code_block_ids
 549                                                    .remove(&(message_id, ix));
 550                                                cx.notify();
 551                                            })
 552                                        })
 553                                        .ok();
 554                                    })
 555                                    .detach();
 556                                });
 557                            }
 558                        }),
 559                    ),
 560                )
 561                .when(
 562                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 563                    |header| {
 564                        header.child(
 565                            IconButton::new(
 566                                ("expand-collapse-code", ix),
 567                                if is_expanded {
 568                                    IconName::ChevronUp
 569                                } else {
 570                                    IconName::ChevronDown
 571                                },
 572                            )
 573                            .icon_color(Color::Muted)
 574                            .shape(ui::IconButtonShape::Square)
 575                            .tooltip(Tooltip::text(if is_expanded {
 576                                "Collapse Code"
 577                            } else {
 578                                "Expand Code"
 579                            }))
 580                            .on_click({
 581                                let active_thread = active_thread.clone();
 582                                move |_event, _window, cx| {
 583                                    active_thread.update(cx, |this, cx| {
 584                                        let is_expanded = this
 585                                            .expanded_code_blocks
 586                                            .entry((message_id, ix))
 587                                            .or_insert(false);
 588                                        *is_expanded = !*is_expanded;
 589                                        cx.notify();
 590                                    });
 591                                }
 592                            }),
 593                        )
 594                    },
 595                ),
 596        );
 597
 598    v_flex()
 599        .group("codeblock_container")
 600        .my_2()
 601        .overflow_hidden()
 602        .rounded_lg()
 603        .border_1()
 604        .border_color(cx.theme().colors().border.opacity(0.6))
 605        .bg(cx.theme().colors().editor_background)
 606        .child(codeblock_header)
 607        .when(
 608            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 609            |this| {
 610                if is_expanded {
 611                    this.h_full()
 612                } else {
 613                    this.max_h_80()
 614                }
 615            },
 616        )
 617}
 618
 619fn open_markdown_link(
 620    text: SharedString,
 621    workspace: WeakEntity<Workspace>,
 622    window: &mut Window,
 623    cx: &mut App,
 624) {
 625    let Some(workspace) = workspace.upgrade() else {
 626        cx.open_url(&text);
 627        return;
 628    };
 629
 630    match MentionLink::try_parse(&text, &workspace, cx) {
 631        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 632            if entry.is_dir() {
 633                workspace.project().update(cx, |_, cx| {
 634                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 635                })
 636            } else {
 637                workspace
 638                    .open_path(path, None, true, window, cx)
 639                    .detach_and_log_err(cx);
 640            }
 641        }),
 642        Some(MentionLink::Symbol(path, symbol_name)) => {
 643            let open_task = workspace.update(cx, |workspace, cx| {
 644                workspace.open_path(path, None, true, window, cx)
 645            });
 646            window
 647                .spawn(cx, async move |cx| {
 648                    let active_editor = open_task
 649                        .await?
 650                        .downcast::<Editor>()
 651                        .context("Item is not an editor")?;
 652                    active_editor.update_in(cx, |editor, window, cx| {
 653                        let symbol_range = editor
 654                            .buffer()
 655                            .read(cx)
 656                            .snapshot(cx)
 657                            .outline(None)
 658                            .and_then(|outline| {
 659                                outline
 660                                    .find_most_similar(&symbol_name)
 661                                    .map(|(_, item)| item.range.clone())
 662                            })
 663                            .context("Could not find matching symbol")?;
 664
 665                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 666                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 667                        });
 668                        anyhow::Ok(())
 669                    })
 670                })
 671                .detach_and_log_err(cx);
 672        }
 673        Some(MentionLink::Selection(path, line_range)) => {
 674            let open_task = workspace.update(cx, |workspace, cx| {
 675                workspace.open_path(path, None, true, window, cx)
 676            });
 677            window
 678                .spawn(cx, async move |cx| {
 679                    let active_editor = open_task
 680                        .await?
 681                        .downcast::<Editor>()
 682                        .context("Item is not an editor")?;
 683                    active_editor.update_in(cx, |editor, window, cx| {
 684                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 685                            s.select_ranges([Point::new(line_range.start as u32, 0)
 686                                ..Point::new(line_range.start as u32, 0)])
 687                        });
 688                        anyhow::Ok(())
 689                    })
 690                })
 691                .detach_and_log_err(cx);
 692        }
 693        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 694            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 695                panel.update(cx, |panel, cx| {
 696                    panel
 697                        .open_thread(&thread_id, window, cx)
 698                        .detach_and_log_err(cx)
 699                });
 700            }
 701        }),
 702        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 703        Some(MentionLink::Rules(prompt_id)) => window.dispatch_action(
 704            Box::new(OpenPromptLibrary {
 705                prompt_to_select: Some(prompt_id.0),
 706            }),
 707            cx,
 708        ),
 709        None => cx.open_url(&text),
 710    }
 711}
 712
 713struct EditMessageState {
 714    editor: Entity<Editor>,
 715    last_estimated_token_count: Option<usize>,
 716    _subscription: Subscription,
 717    _update_token_count_task: Option<Task<anyhow::Result<()>>>,
 718}
 719
 720impl ActiveThread {
 721    pub fn new(
 722        thread: Entity<Thread>,
 723        thread_store: Entity<ThreadStore>,
 724        language_registry: Arc<LanguageRegistry>,
 725        context_store: Entity<ContextStore>,
 726        workspace: WeakEntity<Workspace>,
 727        window: &mut Window,
 728        cx: &mut Context<Self>,
 729    ) -> Self {
 730        let subscriptions = vec![
 731            cx.observe(&thread, |_, _, cx| cx.notify()),
 732            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 733            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 734        ];
 735
 736        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 737            let this = cx.entity().downgrade();
 738            move |ix, window: &mut Window, cx: &mut App| {
 739                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 740                    .unwrap()
 741            }
 742        });
 743
 744        let mut this = Self {
 745            language_registry,
 746            thread_store,
 747            thread: thread.clone(),
 748            context_store,
 749            workspace,
 750            save_thread_task: None,
 751            messages: Vec::new(),
 752            rendered_messages_by_id: HashMap::default(),
 753            rendered_tool_uses: HashMap::default(),
 754            expanded_tool_uses: HashMap::default(),
 755            expanded_thinking_segments: HashMap::default(),
 756            expanded_code_blocks: HashMap::default(),
 757            list_state: list_state.clone(),
 758            scrollbar_state: ScrollbarState::new(list_state),
 759            show_scrollbar: false,
 760            hide_scrollbar_task: None,
 761            editing_message: None,
 762            last_error: None,
 763            last_usage: None,
 764            copied_code_block_ids: HashSet::default(),
 765            notifications: Vec::new(),
 766            _subscriptions: subscriptions,
 767            notification_subscriptions: HashMap::default(),
 768            open_feedback_editors: HashMap::default(),
 769        };
 770
 771        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 772            this.push_message(&message.id, &message.segments, window, cx);
 773
 774            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 775                this.render_tool_use_markdown(
 776                    tool_use.id.clone(),
 777                    tool_use.ui_text.clone(),
 778                    &tool_use.input,
 779                    tool_use.status.text(),
 780                    cx,
 781                );
 782            }
 783        }
 784
 785        this
 786    }
 787
 788    pub fn context_store(&self) -> &Entity<ContextStore> {
 789        &self.context_store
 790    }
 791
 792    pub fn thread(&self) -> &Entity<Thread> {
 793        &self.thread
 794    }
 795
 796    pub fn is_empty(&self) -> bool {
 797        self.messages.is_empty()
 798    }
 799
 800    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 801        self.thread.read(cx).summary()
 802    }
 803
 804    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 805        self.thread.read(cx).summary_or_default()
 806    }
 807
 808    pub fn cancel_last_completion(&mut self, cx: &mut App) -> bool {
 809        self.last_error.take();
 810        self.thread
 811            .update(cx, |thread, cx| thread.cancel_last_completion(cx))
 812    }
 813
 814    pub fn last_error(&self) -> Option<ThreadError> {
 815        self.last_error.clone()
 816    }
 817
 818    pub fn clear_last_error(&mut self) {
 819        self.last_error.take();
 820    }
 821
 822    pub fn last_usage(&self) -> Option<RequestUsage> {
 823        self.last_usage
 824    }
 825
 826    /// Returns the editing message id and the estimated token count in the content
 827    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 828        self.editing_message
 829            .as_ref()
 830            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 831    }
 832
 833    fn push_message(
 834        &mut self,
 835        id: &MessageId,
 836        segments: &[MessageSegment],
 837        _window: &mut Window,
 838        cx: &mut Context<Self>,
 839    ) {
 840        let old_len = self.messages.len();
 841        self.messages.push(*id);
 842        self.list_state.splice(old_len..old_len, 1);
 843
 844        let rendered_message =
 845            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 846        self.rendered_messages_by_id.insert(*id, rendered_message);
 847    }
 848
 849    fn edited_message(
 850        &mut self,
 851        id: &MessageId,
 852        segments: &[MessageSegment],
 853        _window: &mut Window,
 854        cx: &mut Context<Self>,
 855    ) {
 856        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 857            return;
 858        };
 859        self.list_state.splice(index..index + 1, 1);
 860        let rendered_message =
 861            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 862        self.rendered_messages_by_id.insert(*id, rendered_message);
 863    }
 864
 865    fn deleted_message(&mut self, id: &MessageId) {
 866        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 867            return;
 868        };
 869        self.messages.remove(index);
 870        self.list_state.splice(index..index + 1, 0);
 871        self.rendered_messages_by_id.remove(id);
 872    }
 873
 874    fn render_tool_use_markdown(
 875        &mut self,
 876        tool_use_id: LanguageModelToolUseId,
 877        tool_label: impl Into<SharedString>,
 878        tool_input: &serde_json::Value,
 879        tool_output: SharedString,
 880        cx: &mut Context<Self>,
 881    ) {
 882        let rendered = self
 883            .rendered_tool_uses
 884            .entry(tool_use_id.clone())
 885            .or_insert_with(|| RenderedToolUse {
 886                label: cx.new(|cx| {
 887                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 888                }),
 889                input: cx.new(|cx| {
 890                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 891                }),
 892                output: cx.new(|cx| {
 893                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 894                }),
 895            });
 896
 897        rendered.label.update(cx, |this, cx| {
 898            this.replace(tool_label, cx);
 899        });
 900        rendered.input.update(cx, |this, cx| {
 901            let input = format!(
 902                "```json\n{}\n```",
 903                serde_json::to_string_pretty(tool_input).unwrap_or_default()
 904            );
 905            this.replace(input, cx);
 906        });
 907        rendered.output.update(cx, |this, cx| {
 908            this.replace(tool_output, cx);
 909        });
 910    }
 911
 912    fn handle_thread_event(
 913        &mut self,
 914        _thread: &Entity<Thread>,
 915        event: &ThreadEvent,
 916        window: &mut Window,
 917        cx: &mut Context<Self>,
 918    ) {
 919        match event {
 920            ThreadEvent::ShowError(error) => {
 921                self.last_error = Some(error.clone());
 922            }
 923            ThreadEvent::UsageUpdated(usage) => {
 924                self.last_usage = Some(*usage);
 925            }
 926            ThreadEvent::StreamedCompletion
 927            | ThreadEvent::SummaryGenerated
 928            | ThreadEvent::SummaryChanged => {
 929                self.save_thread(cx);
 930            }
 931            ThreadEvent::Stopped(reason) => match reason {
 932                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 933                    let thread = self.thread.read(cx);
 934                    self.show_notification(
 935                        if thread.used_tools_since_last_user_message() {
 936                            "Finished running tools"
 937                        } else {
 938                            "New message"
 939                        },
 940                        IconName::ZedAssistant,
 941                        window,
 942                        cx,
 943                    );
 944                }
 945                _ => {}
 946            },
 947            ThreadEvent::ToolConfirmationNeeded => {
 948                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 949            }
 950            ThreadEvent::StreamedAssistantText(message_id, text) => {
 951                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 952                    rendered_message.append_text(text, cx);
 953                }
 954            }
 955            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 956                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 957                    rendered_message.append_thinking(text, cx);
 958                }
 959            }
 960            ThreadEvent::MessageAdded(message_id) => {
 961                if let Some(message_segments) = self
 962                    .thread
 963                    .read(cx)
 964                    .message(*message_id)
 965                    .map(|message| message.segments.clone())
 966                {
 967                    self.push_message(message_id, &message_segments, window, cx);
 968                }
 969
 970                self.save_thread(cx);
 971                cx.notify();
 972            }
 973            ThreadEvent::MessageEdited(message_id) => {
 974                if let Some(message_segments) = self
 975                    .thread
 976                    .read(cx)
 977                    .message(*message_id)
 978                    .map(|message| message.segments.clone())
 979                {
 980                    self.edited_message(message_id, &message_segments, window, cx);
 981                }
 982
 983                self.save_thread(cx);
 984                cx.notify();
 985            }
 986            ThreadEvent::MessageDeleted(message_id) => {
 987                self.deleted_message(message_id);
 988                self.save_thread(cx);
 989                cx.notify();
 990            }
 991            ThreadEvent::UsePendingTools { tool_uses } => {
 992                for tool_use in tool_uses {
 993                    self.render_tool_use_markdown(
 994                        tool_use.id.clone(),
 995                        tool_use.ui_text.clone(),
 996                        &tool_use.input,
 997                        "".into(),
 998                        cx,
 999                    );
1000                }
1001            }
1002            ThreadEvent::StreamedToolUse {
1003                tool_use_id,
1004                ui_text,
1005                input,
1006            } => {
1007                self.render_tool_use_markdown(
1008                    tool_use_id.clone(),
1009                    ui_text.clone(),
1010                    input,
1011                    "".into(),
1012                    cx,
1013                );
1014            }
1015            ThreadEvent::ToolFinished {
1016                pending_tool_use, ..
1017            } => {
1018                if let Some(tool_use) = pending_tool_use {
1019                    self.render_tool_use_markdown(
1020                        tool_use.id.clone(),
1021                        tool_use.ui_text.clone(),
1022                        &tool_use.input,
1023                        self.thread
1024                            .read(cx)
1025                            .output_for_tool(&tool_use.id)
1026                            .map(|output| output.clone().into())
1027                            .unwrap_or("".into()),
1028                        cx,
1029                    );
1030                }
1031            }
1032            ThreadEvent::CheckpointChanged => cx.notify(),
1033            ThreadEvent::ReceivedTextChunk => {}
1034        }
1035    }
1036
1037    fn handle_rules_loading_error(
1038        &mut self,
1039        _thread_store: Entity<ThreadStore>,
1040        error: &RulesLoadingError,
1041        cx: &mut Context<Self>,
1042    ) {
1043        self.last_error = Some(ThreadError::Message {
1044            header: "Error loading rules file".into(),
1045            message: error.message.clone(),
1046        });
1047        cx.notify();
1048    }
1049
1050    fn show_notification(
1051        &mut self,
1052        caption: impl Into<SharedString>,
1053        icon: IconName,
1054        window: &mut Window,
1055        cx: &mut Context<ActiveThread>,
1056    ) {
1057        if window.is_window_active() || !self.notifications.is_empty() {
1058            return;
1059        }
1060
1061        let title = self
1062            .thread
1063            .read(cx)
1064            .summary()
1065            .unwrap_or("Agent Panel".into());
1066
1067        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1068            NotifyWhenAgentWaiting::PrimaryScreen => {
1069                if let Some(primary) = cx.primary_display() {
1070                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1071                }
1072            }
1073            NotifyWhenAgentWaiting::AllScreens => {
1074                let caption = caption.into();
1075                for screen in cx.displays() {
1076                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1077                }
1078            }
1079            NotifyWhenAgentWaiting::Never => {
1080                // Don't show anything
1081            }
1082        }
1083    }
1084
1085    fn pop_up(
1086        &mut self,
1087        icon: IconName,
1088        caption: SharedString,
1089        title: SharedString,
1090        window: &mut Window,
1091        screen: Rc<dyn PlatformDisplay>,
1092        cx: &mut Context<'_, ActiveThread>,
1093    ) {
1094        let options = AgentNotification::window_options(screen, cx);
1095
1096        if let Some(screen_window) = cx
1097            .open_window(options, |_, cx| {
1098                cx.new(|_| AgentNotification::new(title.clone(), caption.clone(), icon))
1099            })
1100            .log_err()
1101        {
1102            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1103                self.notification_subscriptions
1104                    .entry(screen_window)
1105                    .or_insert_with(Vec::new)
1106                    .push(cx.subscribe_in(&pop_up, window, {
1107                        |this, _, event, window, cx| match event {
1108                            AgentNotificationEvent::Accepted => {
1109                                let handle = window.window_handle();
1110                                cx.activate(true);
1111
1112                                let workspace_handle = this.workspace.clone();
1113
1114                                // If there are multiple Zed windows, activate the correct one.
1115                                cx.defer(move |cx| {
1116                                    handle
1117                                        .update(cx, |_view, window, _cx| {
1118                                            window.activate_window();
1119
1120                                            if let Some(workspace) = workspace_handle.upgrade() {
1121                                                workspace.update(_cx, |workspace, cx| {
1122                                                    workspace
1123                                                        .focus_panel::<AssistantPanel>(window, cx);
1124                                                });
1125                                            }
1126                                        })
1127                                        .log_err();
1128                                });
1129
1130                                this.dismiss_notifications(cx);
1131                            }
1132                            AgentNotificationEvent::Dismissed => {
1133                                this.dismiss_notifications(cx);
1134                            }
1135                        }
1136                    }));
1137
1138                self.notifications.push(screen_window);
1139
1140                // If the user manually refocuses the original window, dismiss the popup.
1141                self.notification_subscriptions
1142                    .entry(screen_window)
1143                    .or_insert_with(Vec::new)
1144                    .push({
1145                        let pop_up_weak = pop_up.downgrade();
1146
1147                        cx.observe_window_activation(window, move |_, window, cx| {
1148                            if window.is_window_active() {
1149                                if let Some(pop_up) = pop_up_weak.upgrade() {
1150                                    pop_up.update(cx, |_, cx| {
1151                                        cx.emit(AgentNotificationEvent::Dismissed);
1152                                    });
1153                                }
1154                            }
1155                        })
1156                    });
1157            }
1158        }
1159    }
1160
1161    /// Spawns a task to save the active thread.
1162    ///
1163    /// Only one task to save the thread will be in flight at a time.
1164    fn save_thread(&mut self, cx: &mut Context<Self>) {
1165        let thread = self.thread.clone();
1166        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1167            let task = this
1168                .update(cx, |this, cx| {
1169                    this.thread_store
1170                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1171                })
1172                .ok();
1173
1174            if let Some(task) = task {
1175                task.await.log_err();
1176            }
1177        }));
1178    }
1179
1180    fn start_editing_message(
1181        &mut self,
1182        message_id: MessageId,
1183        message_segments: &[MessageSegment],
1184        window: &mut Window,
1185        cx: &mut Context<Self>,
1186    ) {
1187        // User message should always consist of a single text segment,
1188        // therefore we can skip returning early if it's not a text segment.
1189        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1190            return;
1191        };
1192
1193        let buffer = cx.new(|cx| {
1194            MultiBuffer::singleton(cx.new(|cx| Buffer::local(message_text.clone(), cx)), cx)
1195        });
1196        let editor = cx.new(|cx| {
1197            let mut editor = Editor::new(
1198                editor::EditorMode::AutoHeight { max_lines: 8 },
1199                buffer,
1200                None,
1201                window,
1202                cx,
1203            );
1204            editor.focus_handle(cx).focus(window);
1205            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1206            editor
1207        });
1208        let subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1209            EditorEvent::BufferEdited => {
1210                this.update_editing_message_token_count(true, cx);
1211            }
1212            _ => {}
1213        });
1214        self.editing_message = Some((
1215            message_id,
1216            EditMessageState {
1217                editor: editor.clone(),
1218                last_estimated_token_count: None,
1219                _subscription: subscription,
1220                _update_token_count_task: None,
1221            },
1222        ));
1223        self.update_editing_message_token_count(false, cx);
1224        cx.notify();
1225    }
1226
1227    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1228        let Some((message_id, state)) = self.editing_message.as_mut() else {
1229            return;
1230        };
1231
1232        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1233        state._update_token_count_task.take();
1234
1235        let Some(default_model) = LanguageModelRegistry::read_global(cx).default_model() else {
1236            state.last_estimated_token_count.take();
1237            return;
1238        };
1239
1240        let editor = state.editor.clone();
1241        let thread = self.thread.clone();
1242        let message_id = *message_id;
1243
1244        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1245            if debounce {
1246                cx.background_executor()
1247                    .timer(Duration::from_millis(200))
1248                    .await;
1249            }
1250
1251            let token_count = if let Some(task) = cx.update(|cx| {
1252                let context = thread.read(cx).context_for_message(message_id);
1253                let new_context = thread.read(cx).filter_new_context(context);
1254                let context_text =
1255                    format_context_as_string(new_context, cx).unwrap_or(String::new());
1256                let message_text = editor.read(cx).text(cx);
1257
1258                let content = context_text + &message_text;
1259
1260                if content.is_empty() {
1261                    return None;
1262                }
1263
1264                let request = language_model::LanguageModelRequest {
1265                    thread_id: None,
1266                    prompt_id: None,
1267                    messages: vec![LanguageModelRequestMessage {
1268                        role: language_model::Role::User,
1269                        content: vec![content.into()],
1270                        cache: false,
1271                    }],
1272                    tools: vec![],
1273                    stop: vec![],
1274                    temperature: None,
1275                };
1276
1277                Some(default_model.model.count_tokens(request, cx))
1278            })? {
1279                task.await?
1280            } else {
1281                0
1282            };
1283
1284            this.update(cx, |this, cx| {
1285                let Some((_message_id, state)) = this.editing_message.as_mut() else {
1286                    return;
1287                };
1288
1289                state.last_estimated_token_count = Some(token_count);
1290                cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1291            })
1292        }));
1293    }
1294
1295    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1296        self.editing_message.take();
1297        cx.notify();
1298    }
1299
1300    fn confirm_editing_message(
1301        &mut self,
1302        _: &menu::Confirm,
1303        _: &mut Window,
1304        cx: &mut Context<Self>,
1305    ) {
1306        let Some((message_id, state)) = self.editing_message.take() else {
1307            return;
1308        };
1309        let edited_text = state.editor.read(cx).text(cx);
1310        self.thread.update(cx, |thread, cx| {
1311            thread.edit_message(
1312                message_id,
1313                Role::User,
1314                vec![MessageSegment::Text(edited_text)],
1315                cx,
1316            );
1317            for message_id in self.messages_after(message_id) {
1318                thread.delete_message(*message_id, cx);
1319            }
1320        });
1321
1322        let Some(model) = LanguageModelRegistry::read_global(cx).default_model() else {
1323            return;
1324        };
1325
1326        if model.provider.must_accept_terms(cx) {
1327            cx.notify();
1328            return;
1329        }
1330
1331        self.thread.update(cx, |thread, cx| {
1332            thread.advance_prompt_id();
1333            thread.send_to_model(model.model, cx)
1334        });
1335        cx.notify();
1336    }
1337
1338    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1339        self.messages
1340            .iter()
1341            .position(|id| *id == message_id)
1342            .map(|index| &self.messages[index + 1..])
1343            .unwrap_or(&[])
1344    }
1345
1346    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1347        self.cancel_editing_message(&menu::Cancel, window, cx);
1348    }
1349
1350    fn handle_regenerate_click(
1351        &mut self,
1352        _: &ClickEvent,
1353        window: &mut Window,
1354        cx: &mut Context<Self>,
1355    ) {
1356        self.confirm_editing_message(&menu::Confirm, window, cx);
1357    }
1358
1359    fn handle_feedback_click(
1360        &mut self,
1361        message_id: MessageId,
1362        feedback: ThreadFeedback,
1363        window: &mut Window,
1364        cx: &mut Context<Self>,
1365    ) {
1366        let report = self.thread.update(cx, |thread, cx| {
1367            thread.report_message_feedback(message_id, feedback, cx)
1368        });
1369
1370        cx.spawn(async move |this, cx| {
1371            report.await?;
1372            this.update(cx, |_this, cx| cx.notify())
1373        })
1374        .detach_and_log_err(cx);
1375
1376        match feedback {
1377            ThreadFeedback::Positive => {
1378                self.open_feedback_editors.remove(&message_id);
1379            }
1380            ThreadFeedback::Negative => {
1381                self.handle_show_feedback_comments(message_id, window, cx);
1382            }
1383        }
1384    }
1385
1386    fn handle_show_feedback_comments(
1387        &mut self,
1388        message_id: MessageId,
1389        window: &mut Window,
1390        cx: &mut Context<Self>,
1391    ) {
1392        let buffer = cx.new(|cx| {
1393            let empty_string = String::new();
1394            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1395        });
1396
1397        let editor = cx.new(|cx| {
1398            let mut editor = Editor::new(
1399                editor::EditorMode::AutoHeight { max_lines: 4 },
1400                buffer,
1401                None,
1402                window,
1403                cx,
1404            );
1405            editor.set_placeholder_text(
1406                "What went wrong? Share your feedback so we can improve.",
1407                cx,
1408            );
1409            editor
1410        });
1411
1412        editor.read(cx).focus_handle(cx).focus(window);
1413        self.open_feedback_editors.insert(message_id, editor);
1414        cx.notify();
1415    }
1416
1417    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1418        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1419            return;
1420        };
1421
1422        let report_task = self.thread.update(cx, |thread, cx| {
1423            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1424        });
1425
1426        let comments = editor.read(cx).text(cx);
1427        if !comments.is_empty() {
1428            let thread_id = self.thread.read(cx).id().clone();
1429            let comments_value = String::from(comments.as_str());
1430
1431            let message_content = self
1432                .thread
1433                .read(cx)
1434                .message(message_id)
1435                .map(|msg| msg.to_string())
1436                .unwrap_or_default();
1437
1438            telemetry::event!(
1439                "Assistant Thread Feedback Comments",
1440                thread_id,
1441                message_id = message_id.0,
1442                message_content,
1443                comments = comments_value
1444            );
1445
1446            self.open_feedback_editors.remove(&message_id);
1447
1448            cx.spawn(async move |this, cx| {
1449                report_task.await?;
1450                this.update(cx, |_this, cx| cx.notify())
1451            })
1452            .detach_and_log_err(cx);
1453        }
1454    }
1455
1456    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1457        let message_id = self.messages[ix];
1458        let Some(message) = self.thread.read(cx).message(message_id) else {
1459            return Empty.into_any();
1460        };
1461
1462        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1463            return Empty.into_any();
1464        };
1465
1466        let context_store = self.context_store.clone();
1467        let workspace = self.workspace.clone();
1468        let thread = self.thread.read(cx);
1469
1470        // Get all the data we need from thread before we start using it in closures
1471        let checkpoint = thread.checkpoint_for_message(message_id);
1472        let context = thread.context_for_message(message_id).collect::<Vec<_>>();
1473
1474        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1475        let has_tool_uses = !tool_uses.is_empty();
1476        let is_generating = thread.is_generating();
1477
1478        let is_first_message = ix == 0;
1479        let is_last_message = ix == self.messages.len() - 1;
1480
1481        let show_feedback = (!is_generating && is_last_message && message.role != Role::User)
1482            || self.messages.get(ix + 1).map_or(false, |next_id| {
1483                self.thread
1484                    .read(cx)
1485                    .message(*next_id)
1486                    .map_or(false, |next_message| {
1487                        next_message.role == Role::User
1488                            && thread.tool_uses_for_message(*next_id, cx).is_empty()
1489                            && thread.tool_results_for_message(*next_id).is_empty()
1490                    })
1491            });
1492
1493        let needs_confirmation = tool_uses.iter().any(|tool_use| tool_use.needs_confirmation);
1494
1495        let generating_label = (is_generating && is_last_message).then(|| {
1496            Label::new("Generating")
1497                .color(Color::Muted)
1498                .size(LabelSize::Small)
1499                .with_animations(
1500                    "generating-label",
1501                    vec![
1502                        Animation::new(Duration::from_secs(1)),
1503                        Animation::new(Duration::from_secs(1)).repeat(),
1504                    ],
1505                    |mut label, animation_ix, delta| {
1506                        match animation_ix {
1507                            0 => {
1508                                let chars_to_show = (delta * 10.).ceil() as usize;
1509                                let text = &"Generating"[0..chars_to_show];
1510                                label.set_text(text);
1511                            }
1512                            1 => {
1513                                let text = match delta {
1514                                    d if d < 0.25 => "Generating",
1515                                    d if d < 0.5 => "Generating.",
1516                                    d if d < 0.75 => "Generating..",
1517                                    _ => "Generating...",
1518                                };
1519                                label.set_text(text);
1520                            }
1521                            _ => {}
1522                        }
1523                        label
1524                    },
1525                )
1526                .with_animation(
1527                    "pulsating-label",
1528                    Animation::new(Duration::from_secs(2))
1529                        .repeat()
1530                        .with_easing(pulsating_between(0.6, 1.)),
1531                    |label, delta| label.map_element(|label| label.alpha(delta)),
1532                )
1533        });
1534
1535        // Don't render user messages that are just there for returning tool results.
1536        if message.role == Role::User && thread.message_has_tool_results(message_id) {
1537            if let Some(generating_label) = generating_label {
1538                return h_flex()
1539                    .w_full()
1540                    .h_10()
1541                    .py_1p5()
1542                    .pl_4()
1543                    .pb_3()
1544                    .child(generating_label)
1545                    .into_any_element();
1546            }
1547
1548            return Empty.into_any();
1549        }
1550
1551        let allow_editing_message = message.role == Role::User;
1552
1553        let edit_message_editor = self
1554            .editing_message
1555            .as_ref()
1556            .filter(|(id, _)| *id == message_id)
1557            .map(|(_, state)| state.editor.clone());
1558
1559        let colors = cx.theme().colors();
1560        let editor_bg_color = colors.editor_background;
1561
1562        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1563            .shape(ui::IconButtonShape::Square)
1564            .icon_size(IconSize::XSmall)
1565            .icon_color(Color::Ignored)
1566            .tooltip(Tooltip::text("Open Thread as Markdown"))
1567            .on_click(|_, window, cx| {
1568                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1569            });
1570
1571        // For all items that should be aligned with the Assistant's response.
1572        const RESPONSE_PADDING_X: Pixels = px(18.);
1573
1574        let feedback_container = h_flex()
1575            .py_2()
1576            .px(RESPONSE_PADDING_X)
1577            .gap_1()
1578            .justify_between();
1579        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1580            Some(feedback) => feedback_container
1581                .child(
1582                    Label::new(match feedback {
1583                        ThreadFeedback::Positive => "Thanks for your feedback!",
1584                        ThreadFeedback::Negative => {
1585                            "We appreciate your feedback and will use it to improve."
1586                        }
1587                    })
1588                    .color(Color::Muted)
1589                    .size(LabelSize::XSmall),
1590                )
1591                .child(
1592                    h_flex()
1593                        .pr_1()
1594                        .gap_1()
1595                        .child(
1596                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1597                                .shape(ui::IconButtonShape::Square)
1598                                .icon_size(IconSize::XSmall)
1599                                .icon_color(match feedback {
1600                                    ThreadFeedback::Positive => Color::Accent,
1601                                    ThreadFeedback::Negative => Color::Ignored,
1602                                })
1603                                .tooltip(Tooltip::text("Helpful Response"))
1604                                .on_click(cx.listener(move |this, _, window, cx| {
1605                                    this.handle_feedback_click(
1606                                        message_id,
1607                                        ThreadFeedback::Positive,
1608                                        window,
1609                                        cx,
1610                                    );
1611                                })),
1612                        )
1613                        .child(
1614                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1615                                .shape(ui::IconButtonShape::Square)
1616                                .icon_size(IconSize::XSmall)
1617                                .icon_color(match feedback {
1618                                    ThreadFeedback::Positive => Color::Ignored,
1619                                    ThreadFeedback::Negative => Color::Accent,
1620                                })
1621                                .tooltip(Tooltip::text("Not Helpful"))
1622                                .on_click(cx.listener(move |this, _, window, cx| {
1623                                    this.handle_feedback_click(
1624                                        message_id,
1625                                        ThreadFeedback::Negative,
1626                                        window,
1627                                        cx,
1628                                    );
1629                                })),
1630                        )
1631                        .child(open_as_markdown),
1632                )
1633                .into_any_element(),
1634            None => feedback_container
1635                .child(
1636                    Label::new(
1637                        "Rating the thread sends all of your current conversation to the Zed team.",
1638                    )
1639                    .color(Color::Muted)
1640                    .size(LabelSize::XSmall),
1641                )
1642                .child(
1643                    h_flex()
1644                        .pr_1()
1645                        .gap_1()
1646                        .child(
1647                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1648                                .icon_size(IconSize::XSmall)
1649                                .icon_color(Color::Ignored)
1650                                .shape(ui::IconButtonShape::Square)
1651                                .tooltip(Tooltip::text("Helpful Response"))
1652                                .on_click(cx.listener(move |this, _, window, cx| {
1653                                    this.handle_feedback_click(
1654                                        message_id,
1655                                        ThreadFeedback::Positive,
1656                                        window,
1657                                        cx,
1658                                    );
1659                                })),
1660                        )
1661                        .child(
1662                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1663                                .icon_size(IconSize::XSmall)
1664                                .icon_color(Color::Ignored)
1665                                .shape(ui::IconButtonShape::Square)
1666                                .tooltip(Tooltip::text("Not Helpful"))
1667                                .on_click(cx.listener(move |this, _, window, cx| {
1668                                    this.handle_feedback_click(
1669                                        message_id,
1670                                        ThreadFeedback::Negative,
1671                                        window,
1672                                        cx,
1673                                    );
1674                                })),
1675                        )
1676                        .child(open_as_markdown),
1677                )
1678                .into_any_element(),
1679        };
1680
1681        let message_is_empty = message.should_display_content();
1682        let has_content = !message_is_empty || !context.is_empty();
1683
1684        let message_content =
1685            has_content.then(|| {
1686                v_flex()
1687                    .gap_1p5()
1688                    .when(!message_is_empty, |parent| {
1689                        parent.child(
1690                            if let Some(edit_message_editor) = edit_message_editor.clone() {
1691                                let settings = ThemeSettings::get_global(cx);
1692                                let font_size = TextSize::Small.rems(cx);
1693                                let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1694
1695                                let text_style = TextStyle {
1696                                    color: cx.theme().colors().text,
1697                                    font_family: settings.buffer_font.family.clone(),
1698                                    font_fallbacks: settings.buffer_font.fallbacks.clone(),
1699                                    font_features: settings.buffer_font.features.clone(),
1700                                    font_size: font_size.into(),
1701                                    line_height: line_height.into(),
1702                                    ..Default::default()
1703                                };
1704
1705                                div()
1706                                    .key_context("EditMessageEditor")
1707                                    .on_action(cx.listener(Self::cancel_editing_message))
1708                                    .on_action(cx.listener(Self::confirm_editing_message))
1709                                    .min_h_6()
1710                                    .pt_1()
1711                                    .child(EditorElement::new(
1712                                        &edit_message_editor,
1713                                        EditorStyle {
1714                                            background: colors.editor_background,
1715                                            local_player: cx.theme().players().local(),
1716                                            text: text_style,
1717                                            syntax: cx.theme().syntax().clone(),
1718                                            ..Default::default()
1719                                        },
1720                                    ))
1721                                    .into_any()
1722                            } else {
1723                                div()
1724                                    .min_h_6()
1725                                    .child(self.render_message_content(
1726                                        message_id,
1727                                        rendered_message,
1728                                        has_tool_uses,
1729                                        workspace.clone(),
1730                                        window,
1731                                        cx,
1732                                    ))
1733                                    .into_any()
1734                            },
1735                        )
1736                    })
1737                    .when(!context.is_empty(), |parent| {
1738                        parent.child(h_flex().flex_wrap().gap_1().children(
1739                            context.into_iter().map(|context| {
1740                                let context_id = context.id();
1741                                ContextPill::added(
1742                                    AddedContext::new(context, cx),
1743                                    false,
1744                                    false,
1745                                    None,
1746                                )
1747                                .on_click(Rc::new(cx.listener({
1748                                    let workspace = workspace.clone();
1749                                    let context_store = context_store.clone();
1750                                    move |_, _, window, cx| {
1751                                        if let Some(workspace) = workspace.upgrade() {
1752                                            open_context(
1753                                                context_id,
1754                                                context_store.clone(),
1755                                                workspace,
1756                                                window,
1757                                                cx,
1758                                            );
1759                                            cx.notify();
1760                                        }
1761                                    }
1762                                })))
1763                            }),
1764                        ))
1765                    })
1766            });
1767
1768        let styled_message = match message.role {
1769            Role::User => v_flex()
1770                .id(("message-container", ix))
1771                .map(|this| {
1772                    if is_first_message {
1773                        this.pt_2()
1774                    } else {
1775                        this.pt_4()
1776                    }
1777                })
1778                .pl_2()
1779                .pr_2p5()
1780                .pb_4()
1781                .child(
1782                    v_flex()
1783                        .bg(editor_bg_color)
1784                        .rounded_lg()
1785                        .border_1()
1786                        .border_color(colors.border)
1787                        .shadow_md()
1788                        .child(div().py_2().px_2p5().children(message_content))
1789                        .child(
1790                            h_flex()
1791                                .p_1()
1792                                .border_t_1()
1793                                .border_color(colors.border_variant)
1794                                .justify_end()
1795                                .child(
1796                                    h_flex()
1797                                        .gap_1()
1798                                        .when_some(
1799                                            edit_message_editor.clone(),
1800                                            |this, edit_message_editor| {
1801                                                let focus_handle =
1802                                                    edit_message_editor.focus_handle(cx);
1803                                                this.child(
1804                                                    Button::new("cancel-edit-message", "Cancel")
1805                                                        .label_size(LabelSize::Small)
1806                                                        .key_binding(
1807                                                            KeyBinding::for_action_in(
1808                                                                &menu::Cancel,
1809                                                                &focus_handle,
1810                                                                window,
1811                                                                cx,
1812                                                            )
1813                                                            .map(|kb| kb.size(rems_from_px(12.))),
1814                                                        )
1815                                                        .on_click(
1816                                                            cx.listener(Self::handle_cancel_click),
1817                                                        ),
1818                                                )
1819                                                .child(
1820                                                    Button::new(
1821                                                        "confirm-edit-message",
1822                                                        "Regenerate",
1823                                                    )
1824                                                    .disabled(
1825                                                        edit_message_editor.read(cx).is_empty(cx),
1826                                                    )
1827                                                    .label_size(LabelSize::Small)
1828                                                    .key_binding(
1829                                                        KeyBinding::for_action_in(
1830                                                            &menu::Confirm,
1831                                                            &focus_handle,
1832                                                            window,
1833                                                            cx,
1834                                                        )
1835                                                        .map(|kb| kb.size(rems_from_px(12.))),
1836                                                    )
1837                                                    .on_click(
1838                                                        cx.listener(Self::handle_regenerate_click),
1839                                                    ),
1840                                                )
1841                                            },
1842                                        )
1843                                        .when(
1844                                            edit_message_editor.is_none() && allow_editing_message,
1845                                            |this| {
1846                                                this.child(
1847                                                    Button::new("edit-message", "Edit Message")
1848                                                        .label_size(LabelSize::Small)
1849                                                        .icon(IconName::Pencil)
1850                                                        .icon_size(IconSize::XSmall)
1851                                                        .icon_color(Color::Muted)
1852                                                        .icon_position(IconPosition::Start)
1853                                                        .on_click(cx.listener({
1854                                                            let message_segments =
1855                                                                message.segments.clone();
1856                                                            move |this, _, window, cx| {
1857                                                                this.start_editing_message(
1858                                                                    message_id,
1859                                                                    &message_segments,
1860                                                                    window,
1861                                                                    cx,
1862                                                                );
1863                                                            }
1864                                                        })),
1865                                                )
1866                                            },
1867                                        ),
1868                                ),
1869                        ),
1870                ),
1871            Role::Assistant => v_flex()
1872                .id(("message-container", ix))
1873                .px(RESPONSE_PADDING_X)
1874                .gap_2()
1875                .children(message_content)
1876                .when(has_tool_uses, |parent| {
1877                    parent.children(
1878                        tool_uses
1879                            .into_iter()
1880                            .map(|tool_use| self.render_tool_use(tool_use, window, cx)),
1881                    )
1882                }),
1883            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1884                v_flex()
1885                    .bg(colors.editor_background)
1886                    .rounded_sm()
1887                    .child(div().p_4().children(message_content)),
1888            ),
1889        };
1890
1891        let after_editing_message = self
1892            .editing_message
1893            .as_ref()
1894            .map_or(false, |(editing_message_id, _)| {
1895                message_id > *editing_message_id
1896            });
1897
1898        let panel_background = cx.theme().colors().panel_background;
1899
1900        v_flex()
1901            .w_full()
1902            .when_some(checkpoint, |parent, checkpoint| {
1903                let mut is_pending = false;
1904                let mut error = None;
1905                if let Some(last_restore_checkpoint) =
1906                    self.thread.read(cx).last_restore_checkpoint()
1907                {
1908                    if last_restore_checkpoint.message_id() == message_id {
1909                        match last_restore_checkpoint {
1910                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1911                            LastRestoreCheckpoint::Error { error: err, .. } => {
1912                                error = Some(err.clone());
1913                            }
1914                        }
1915                    }
1916                }
1917
1918                let restore_checkpoint_button =
1919                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1920                        .icon(if error.is_some() {
1921                            IconName::XCircle
1922                        } else {
1923                            IconName::Undo
1924                        })
1925                        .icon_size(IconSize::XSmall)
1926                        .icon_position(IconPosition::Start)
1927                        .icon_color(if error.is_some() {
1928                            Some(Color::Error)
1929                        } else {
1930                            None
1931                        })
1932                        .label_size(LabelSize::XSmall)
1933                        .disabled(is_pending)
1934                        .on_click(cx.listener(move |this, _, _window, cx| {
1935                            this.thread.update(cx, |thread, cx| {
1936                                thread
1937                                    .restore_checkpoint(checkpoint.clone(), cx)
1938                                    .detach_and_log_err(cx);
1939                            });
1940                        }));
1941
1942                let restore_checkpoint_button = if is_pending {
1943                    restore_checkpoint_button
1944                        .with_animation(
1945                            ("pulsating-restore-checkpoint-button", ix),
1946                            Animation::new(Duration::from_secs(2))
1947                                .repeat()
1948                                .with_easing(pulsating_between(0.6, 1.)),
1949                            |label, delta| label.alpha(delta),
1950                        )
1951                        .into_any_element()
1952                } else if let Some(error) = error {
1953                    restore_checkpoint_button
1954                        .tooltip(Tooltip::text(error.to_string()))
1955                        .into_any_element()
1956                } else {
1957                    restore_checkpoint_button.into_any_element()
1958                };
1959
1960                parent.child(
1961                    h_flex()
1962                        .pt_2p5()
1963                        .px_2p5()
1964                        .w_full()
1965                        .gap_1()
1966                        .child(ui::Divider::horizontal())
1967                        .child(restore_checkpoint_button)
1968                        .child(ui::Divider::horizontal()),
1969                )
1970            })
1971            .when(is_first_message, |parent| {
1972                parent.child(self.render_rules_item(cx))
1973            })
1974            .child(styled_message)
1975            .when(!needs_confirmation && generating_label.is_some(), |this| {
1976                this.child(
1977                    h_flex()
1978                        .h_8()
1979                        .mt_2()
1980                        .mb_4()
1981                        .ml_4()
1982                        .py_1p5()
1983                        .child(generating_label.unwrap()),
1984                )
1985            })
1986            .when(show_feedback, move |parent| {
1987                parent.child(feedback_items).when_some(
1988                    self.open_feedback_editors.get(&message_id),
1989                    move |parent, feedback_editor| {
1990                        let focus_handle = feedback_editor.focus_handle(cx);
1991                        parent.child(
1992                            v_flex()
1993                                .key_context("AgentFeedbackMessageEditor")
1994                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1995                                    this.open_feedback_editors.remove(&message_id);
1996                                    cx.notify();
1997                                }))
1998                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1999                                    this.submit_feedback_message(message_id, cx);
2000                                    cx.notify();
2001                                }))
2002                                .on_action(cx.listener(Self::confirm_editing_message))
2003                                .mb_2()
2004                                .mx_4()
2005                                .p_2()
2006                                .rounded_md()
2007                                .border_1()
2008                                .border_color(cx.theme().colors().border)
2009                                .bg(cx.theme().colors().editor_background)
2010                                .child(feedback_editor.clone())
2011                                .child(
2012                                    h_flex()
2013                                        .gap_1()
2014                                        .justify_end()
2015                                        .child(
2016                                            Button::new("dismiss-feedback-message", "Cancel")
2017                                                .label_size(LabelSize::Small)
2018                                                .key_binding(
2019                                                    KeyBinding::for_action_in(
2020                                                        &menu::Cancel,
2021                                                        &focus_handle,
2022                                                        window,
2023                                                        cx,
2024                                                    )
2025                                                    .map(|kb| kb.size(rems_from_px(10.))),
2026                                                )
2027                                                .on_click(cx.listener(
2028                                                    move |this, _, _window, cx| {
2029                                                        this.open_feedback_editors
2030                                                            .remove(&message_id);
2031                                                        cx.notify();
2032                                                    },
2033                                                )),
2034                                        )
2035                                        .child(
2036                                            Button::new(
2037                                                "submit-feedback-message",
2038                                                "Share Feedback",
2039                                            )
2040                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2041                                            .label_size(LabelSize::Small)
2042                                            .key_binding(
2043                                                KeyBinding::for_action_in(
2044                                                    &menu::Confirm,
2045                                                    &focus_handle,
2046                                                    window,
2047                                                    cx,
2048                                                )
2049                                                .map(|kb| kb.size(rems_from_px(10.))),
2050                                            )
2051                                            .on_click(
2052                                                cx.listener(move |this, _, _window, cx| {
2053                                                    this.submit_feedback_message(message_id, cx);
2054                                                    cx.notify()
2055                                                }),
2056                                            ),
2057                                        ),
2058                                ),
2059                        )
2060                    },
2061                )
2062            })
2063            .when(after_editing_message, |parent| {
2064                // Backdrop to dim out the whole thread below the editing user message
2065                parent.relative().child(
2066                    div()
2067                        .occlude()
2068                        .absolute()
2069                        .inset_0()
2070                        .size_full()
2071                        .bg(panel_background)
2072                        .opacity(0.8),
2073                )
2074            })
2075            .into_any()
2076    }
2077
2078    fn render_message_content(
2079        &self,
2080        message_id: MessageId,
2081        rendered_message: &RenderedMessage,
2082        has_tool_uses: bool,
2083        workspace: WeakEntity<Workspace>,
2084        window: &Window,
2085        cx: &Context<Self>,
2086    ) -> impl IntoElement {
2087        let is_last_message = self.messages.last() == Some(&message_id);
2088        let is_generating = self.thread.read(cx).is_generating();
2089        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2090            rendered_message
2091                .segments
2092                .iter()
2093                .enumerate()
2094                .next_back()
2095                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2096                .map(|(index, _)| index)
2097        } else {
2098            None
2099        };
2100
2101        let message_role = self
2102            .thread
2103            .read(cx)
2104            .message(message_id)
2105            .map(|m| m.role)
2106            .unwrap_or(Role::User);
2107
2108        let is_assistant_message = message_role == Role::Assistant;
2109        let is_user_message = message_role == Role::User;
2110
2111        v_flex()
2112            .text_ui(cx)
2113            .gap_2()
2114            .when(is_user_message, |this| this.text_xs())
2115            .children(
2116                rendered_message.segments.iter().enumerate().map(
2117                    |(index, segment)| match segment {
2118                        RenderedMessageSegment::Thinking {
2119                            content,
2120                            scroll_handle,
2121                        } => self
2122                            .render_message_thinking_segment(
2123                                message_id,
2124                                index,
2125                                content.clone(),
2126                                &scroll_handle,
2127                                Some(index) == pending_thinking_segment_index,
2128                                window,
2129                                cx,
2130                            )
2131                            .into_any_element(),
2132                        RenderedMessageSegment::Text(markdown) => {
2133                            let markdown_element = MarkdownElement::new(
2134                                markdown.clone(),
2135                                if is_user_message {
2136                                    let mut style = default_markdown_style(window, cx);
2137                                    let mut text_style = window.text_style();
2138                                    let theme_settings = ThemeSettings::get_global(cx);
2139
2140                                    let buffer_font = theme_settings.buffer_font.family.clone();
2141                                    let buffer_font_size = TextSize::Small.rems(cx);
2142
2143                                    text_style.refine(&TextStyleRefinement {
2144                                        font_family: Some(buffer_font),
2145                                        font_size: Some(buffer_font_size.into()),
2146                                        ..Default::default()
2147                                    });
2148
2149                                    style.base_text_style = text_style;
2150                                    style
2151                                } else {
2152                                    default_markdown_style(window, cx)
2153                                },
2154                            );
2155
2156                            let markdown_element = if is_assistant_message {
2157                                markdown_element.code_block_renderer(
2158                                    markdown::CodeBlockRenderer::Custom {
2159                                        render: Arc::new({
2160                                            let workspace = workspace.clone();
2161                                            let active_thread = cx.entity();
2162                                            move |kind,
2163                                                  parsed_markdown,
2164                                                  range,
2165                                                  metadata,
2166                                                  window,
2167                                                  cx| {
2168                                                render_markdown_code_block(
2169                                                    message_id,
2170                                                    range.start,
2171                                                    kind,
2172                                                    parsed_markdown,
2173                                                    metadata,
2174                                                    active_thread.clone(),
2175                                                    workspace.clone(),
2176                                                    window,
2177                                                    cx,
2178                                                )
2179                                            }
2180                                        }),
2181                                        transform: Some(Arc::new({
2182                                            let active_thread = cx.entity();
2183                                            move |el, range, metadata, _, cx| {
2184                                                let is_expanded = active_thread
2185                                                    .read(cx)
2186                                                    .expanded_code_blocks
2187                                                    .get(&(message_id, range.start))
2188                                                    .copied()
2189                                                    .unwrap_or(false);
2190
2191                                                if is_expanded
2192                                                    || metadata.line_count
2193                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2194                                                {
2195                                                    return el;
2196                                                }
2197                                                el.child(
2198                                                    div()
2199                                                        .absolute()
2200                                                        .bottom_0()
2201                                                        .left_0()
2202                                                        .w_full()
2203                                                        .h_1_4()
2204                                                        .rounded_b_lg()
2205                                                        .bg(gpui::linear_gradient(
2206                                                            0.,
2207                                                            gpui::linear_color_stop(
2208                                                                cx.theme()
2209                                                                    .colors()
2210                                                                    .editor_background,
2211                                                                0.,
2212                                                            ),
2213                                                            gpui::linear_color_stop(
2214                                                                cx.theme()
2215                                                                    .colors()
2216                                                                    .editor_background
2217                                                                    .opacity(0.),
2218                                                                1.,
2219                                                            ),
2220                                                        )),
2221                                                )
2222                                            }
2223                                        })),
2224                                    },
2225                                )
2226                            } else {
2227                                markdown_element.code_block_renderer(
2228                                    markdown::CodeBlockRenderer::Default {
2229                                        copy_button: false,
2230                                        border: true,
2231                                    },
2232                                )
2233                            };
2234
2235                            div()
2236                                .child(markdown_element.on_url_click({
2237                                    let workspace = self.workspace.clone();
2238                                    move |text, window, cx| {
2239                                        open_markdown_link(text, workspace.clone(), window, cx);
2240                                    }
2241                                }))
2242                                .into_any_element()
2243                        }
2244                    },
2245                ),
2246            )
2247    }
2248
2249    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2250        cx.theme().colors().border.opacity(0.5)
2251    }
2252
2253    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2254        cx.theme()
2255            .colors()
2256            .element_background
2257            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2258    }
2259
2260    fn render_message_thinking_segment(
2261        &self,
2262        message_id: MessageId,
2263        ix: usize,
2264        markdown: Entity<Markdown>,
2265        scroll_handle: &ScrollHandle,
2266        pending: bool,
2267        window: &Window,
2268        cx: &Context<Self>,
2269    ) -> impl IntoElement {
2270        let is_open = self
2271            .expanded_thinking_segments
2272            .get(&(message_id, ix))
2273            .copied()
2274            .unwrap_or_default();
2275
2276        let editor_bg = cx.theme().colors().panel_background;
2277
2278        div().map(|this| {
2279            if pending {
2280                this.v_flex()
2281                    .mt_neg_2()
2282                    .mb_1p5()
2283                    .child(
2284                        h_flex()
2285                            .group("disclosure-header")
2286                            .justify_between()
2287                            .child(
2288                                h_flex()
2289                                    .gap_1p5()
2290                                    .child(
2291                                        Icon::new(IconName::LightBulb)
2292                                            .size(IconSize::XSmall)
2293                                            .color(Color::Muted),
2294                                    )
2295                                    .child({
2296                                        Label::new("Thinking")
2297                                            .color(Color::Muted)
2298                                            .size(LabelSize::Small)
2299                                            .with_animation(
2300                                                "generating-label",
2301                                                Animation::new(Duration::from_secs(1)).repeat(),
2302                                                |mut label, delta| {
2303                                                    let text = match delta {
2304                                                        d if d < 0.25 => "Thinking",
2305                                                        d if d < 0.5 => "Thinking.",
2306                                                        d if d < 0.75 => "Thinking..",
2307                                                        _ => "Thinking...",
2308                                                    };
2309                                                    label.set_text(text);
2310                                                    label
2311                                                },
2312                                            )
2313                                            .with_animation(
2314                                                "pulsating-label",
2315                                                Animation::new(Duration::from_secs(2))
2316                                                    .repeat()
2317                                                    .with_easing(pulsating_between(0.6, 1.)),
2318                                                |label, delta| {
2319                                                    label.map_element(|label| label.alpha(delta))
2320                                                },
2321                                            )
2322                                    }),
2323                            )
2324                            .child(
2325                                h_flex()
2326                                    .gap_1()
2327                                    .child(
2328                                        div().visible_on_hover("disclosure-header").child(
2329                                            Disclosure::new("thinking-disclosure", is_open)
2330                                                .opened_icon(IconName::ChevronUp)
2331                                                .closed_icon(IconName::ChevronDown)
2332                                                .on_click(cx.listener({
2333                                                    move |this, _event, _window, _cx| {
2334                                                        let is_open = this
2335                                                            .expanded_thinking_segments
2336                                                            .entry((message_id, ix))
2337                                                            .or_insert(false);
2338
2339                                                        *is_open = !*is_open;
2340                                                    }
2341                                                })),
2342                                        ),
2343                                    )
2344                                    .child({
2345                                        Icon::new(IconName::ArrowCircle)
2346                                            .color(Color::Accent)
2347                                            .size(IconSize::Small)
2348                                            .with_animation(
2349                                                "arrow-circle",
2350                                                Animation::new(Duration::from_secs(2)).repeat(),
2351                                                |icon, delta| {
2352                                                    icon.transform(Transformation::rotate(
2353                                                        percentage(delta),
2354                                                    ))
2355                                                },
2356                                            )
2357                                    }),
2358                            ),
2359                    )
2360                    .when(!is_open, |this| {
2361                        let gradient_overlay = div()
2362                            .rounded_b_lg()
2363                            .h_full()
2364                            .absolute()
2365                            .w_full()
2366                            .bottom_0()
2367                            .left_0()
2368                            .bg(linear_gradient(
2369                                180.,
2370                                linear_color_stop(editor_bg, 1.),
2371                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2372                            ));
2373
2374                        this.child(
2375                            div()
2376                                .relative()
2377                                .bg(editor_bg)
2378                                .rounded_b_lg()
2379                                .mt_2()
2380                                .pl_4()
2381                                .child(
2382                                    div()
2383                                        .id(("thinking-content", ix))
2384                                        .max_h_20()
2385                                        .track_scroll(scroll_handle)
2386                                        .text_ui_sm(cx)
2387                                        .overflow_hidden()
2388                                        .child(
2389                                            MarkdownElement::new(
2390                                                markdown.clone(),
2391                                                default_markdown_style(window, cx),
2392                                            )
2393                                            .on_url_click({
2394                                                let workspace = self.workspace.clone();
2395                                                move |text, window, cx| {
2396                                                    open_markdown_link(
2397                                                        text,
2398                                                        workspace.clone(),
2399                                                        window,
2400                                                        cx,
2401                                                    );
2402                                                }
2403                                            }),
2404                                        ),
2405                                )
2406                                .child(gradient_overlay),
2407                        )
2408                    })
2409                    .when(is_open, |this| {
2410                        this.child(
2411                            div()
2412                                .id(("thinking-content", ix))
2413                                .h_full()
2414                                .bg(editor_bg)
2415                                .text_ui_sm(cx)
2416                                .child(
2417                                    MarkdownElement::new(
2418                                        markdown.clone(),
2419                                        default_markdown_style(window, cx),
2420                                    )
2421                                    .on_url_click({
2422                                        let workspace = self.workspace.clone();
2423                                        move |text, window, cx| {
2424                                            open_markdown_link(text, workspace.clone(), window, cx);
2425                                        }
2426                                    }),
2427                                ),
2428                        )
2429                    })
2430            } else {
2431                this.v_flex()
2432                    .mt_neg_2()
2433                    .child(
2434                        h_flex()
2435                            .group("disclosure-header")
2436                            .pr_1()
2437                            .justify_between()
2438                            .opacity(0.8)
2439                            .hover(|style| style.opacity(1.))
2440                            .child(
2441                                h_flex()
2442                                    .gap_1p5()
2443                                    .child(
2444                                        Icon::new(IconName::LightBulb)
2445                                            .size(IconSize::XSmall)
2446                                            .color(Color::Muted),
2447                                    )
2448                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2449                            )
2450                            .child(
2451                                div().visible_on_hover("disclosure-header").child(
2452                                    Disclosure::new("thinking-disclosure", is_open)
2453                                        .opened_icon(IconName::ChevronUp)
2454                                        .closed_icon(IconName::ChevronDown)
2455                                        .on_click(cx.listener({
2456                                            move |this, _event, _window, _cx| {
2457                                                let is_open = this
2458                                                    .expanded_thinking_segments
2459                                                    .entry((message_id, ix))
2460                                                    .or_insert(false);
2461
2462                                                *is_open = !*is_open;
2463                                            }
2464                                        })),
2465                                ),
2466                            ),
2467                    )
2468                    .child(
2469                        div()
2470                            .id(("thinking-content", ix))
2471                            .relative()
2472                            .mt_1p5()
2473                            .ml_1p5()
2474                            .pl_2p5()
2475                            .border_l_1()
2476                            .border_color(cx.theme().colors().border_variant)
2477                            .text_ui_sm(cx)
2478                            .when(is_open, |this| {
2479                                this.child(
2480                                    MarkdownElement::new(
2481                                        markdown.clone(),
2482                                        default_markdown_style(window, cx),
2483                                    )
2484                                    .on_url_click({
2485                                        let workspace = self.workspace.clone();
2486                                        move |text, window, cx| {
2487                                            open_markdown_link(text, workspace.clone(), window, cx);
2488                                        }
2489                                    }),
2490                                )
2491                            }),
2492                    )
2493            }
2494        })
2495    }
2496
2497    fn render_tool_use(
2498        &self,
2499        tool_use: ToolUse,
2500        window: &mut Window,
2501        cx: &mut Context<Self>,
2502    ) -> impl IntoElement + use<> {
2503        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2504            return card.render(&tool_use.status, window, cx);
2505        }
2506
2507        let is_open = self
2508            .expanded_tool_uses
2509            .get(&tool_use.id)
2510            .copied()
2511            .unwrap_or_default();
2512
2513        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2514
2515        let fs = self
2516            .workspace
2517            .upgrade()
2518            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2519        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2520        let edit_tools = tool_use.needs_confirmation;
2521
2522        let status_icons = div().child(match &tool_use.status {
2523            ToolUseStatus::NeedsConfirmation => {
2524                let icon = Icon::new(IconName::Warning)
2525                    .color(Color::Warning)
2526                    .size(IconSize::Small);
2527                icon.into_any_element()
2528            }
2529            ToolUseStatus::Pending
2530            | ToolUseStatus::InputStillStreaming
2531            | ToolUseStatus::Running => {
2532                let icon = Icon::new(IconName::ArrowCircle)
2533                    .color(Color::Accent)
2534                    .size(IconSize::Small);
2535                icon.with_animation(
2536                    "arrow-circle",
2537                    Animation::new(Duration::from_secs(2)).repeat(),
2538                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2539                )
2540                .into_any_element()
2541            }
2542            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2543            ToolUseStatus::Error(_) => {
2544                let icon = Icon::new(IconName::Close)
2545                    .color(Color::Error)
2546                    .size(IconSize::Small);
2547                icon.into_any_element()
2548            }
2549        });
2550
2551        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2552        let results_content_container = || v_flex().p_2().gap_0p5();
2553
2554        let results_content = v_flex()
2555            .gap_1()
2556            .child(
2557                results_content_container()
2558                    .child(
2559                        Label::new("Input")
2560                            .size(LabelSize::XSmall)
2561                            .color(Color::Muted)
2562                            .buffer_font(cx),
2563                    )
2564                    .child(
2565                        div()
2566                            .w_full()
2567                            .text_ui_sm(cx)
2568                            .children(rendered_tool_use.as_ref().map(|rendered| {
2569                                MarkdownElement::new(
2570                                    rendered.input.clone(),
2571                                    tool_use_markdown_style(window, cx),
2572                                )
2573                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2574                                    copy_button: false,
2575                                    border: false,
2576                                })
2577                                .on_url_click({
2578                                    let workspace = self.workspace.clone();
2579                                    move |text, window, cx| {
2580                                        open_markdown_link(text, workspace.clone(), window, cx);
2581                                    }
2582                                })
2583                            })),
2584                    ),
2585            )
2586            .map(|container| match tool_use.status {
2587                ToolUseStatus::Finished(_) => container.child(
2588                    results_content_container()
2589                        .border_t_1()
2590                        .border_color(self.tool_card_border_color(cx))
2591                        .child(
2592                            Label::new("Result")
2593                                .size(LabelSize::XSmall)
2594                                .color(Color::Muted)
2595                                .buffer_font(cx),
2596                        )
2597                        .child(div().w_full().text_ui_sm(cx).children(
2598                            rendered_tool_use.as_ref().map(|rendered| {
2599                                MarkdownElement::new(
2600                                    rendered.output.clone(),
2601                                    tool_use_markdown_style(window, cx),
2602                                )
2603                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2604                                    copy_button: false,
2605                                    border: false,
2606                                })
2607                                .on_url_click({
2608                                    let workspace = self.workspace.clone();
2609                                    move |text, window, cx| {
2610                                        open_markdown_link(text, workspace.clone(), window, cx);
2611                                    }
2612                                })
2613                                .into_any_element()
2614                            }),
2615                        )),
2616                ),
2617                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2618                    results_content_container().child(
2619                        h_flex()
2620                            .gap_1()
2621                            .pb_1()
2622                            .border_t_1()
2623                            .border_color(self.tool_card_border_color(cx))
2624                            .child(
2625                                Icon::new(IconName::ArrowCircle)
2626                                    .size(IconSize::Small)
2627                                    .color(Color::Accent)
2628                                    .with_animation(
2629                                        "arrow-circle",
2630                                        Animation::new(Duration::from_secs(2)).repeat(),
2631                                        |icon, delta| {
2632                                            icon.transform(Transformation::rotate(percentage(
2633                                                delta,
2634                                            )))
2635                                        },
2636                                    ),
2637                            )
2638                            .child(
2639                                Label::new("Running…")
2640                                    .size(LabelSize::XSmall)
2641                                    .color(Color::Muted)
2642                                    .buffer_font(cx),
2643                            ),
2644                    ),
2645                ),
2646                ToolUseStatus::Error(_) => container.child(
2647                    results_content_container()
2648                        .border_t_1()
2649                        .border_color(self.tool_card_border_color(cx))
2650                        .child(
2651                            Label::new("Error")
2652                                .size(LabelSize::XSmall)
2653                                .color(Color::Muted)
2654                                .buffer_font(cx),
2655                        )
2656                        .child(
2657                            div()
2658                                .text_ui_sm(cx)
2659                                .children(rendered_tool_use.as_ref().map(|rendered| {
2660                                    MarkdownElement::new(
2661                                        rendered.output.clone(),
2662                                        tool_use_markdown_style(window, cx),
2663                                    )
2664                                    .on_url_click({
2665                                        let workspace = self.workspace.clone();
2666                                        move |text, window, cx| {
2667                                            open_markdown_link(text, workspace.clone(), window, cx);
2668                                        }
2669                                    })
2670                                    .into_any_element()
2671                                })),
2672                        ),
2673                ),
2674                ToolUseStatus::Pending => container,
2675                ToolUseStatus::NeedsConfirmation => container.child(
2676                    results_content_container()
2677                        .border_t_1()
2678                        .border_color(self.tool_card_border_color(cx))
2679                        .child(
2680                            Label::new("Asking Permission")
2681                                .size(LabelSize::Small)
2682                                .color(Color::Muted)
2683                                .buffer_font(cx),
2684                        ),
2685                ),
2686            });
2687
2688        let gradient_overlay = |color: Hsla| {
2689            div()
2690                .h_full()
2691                .absolute()
2692                .w_12()
2693                .bottom_0()
2694                .map(|element| {
2695                    if is_status_finished {
2696                        element.right_6()
2697                    } else {
2698                        element.right(px(44.))
2699                    }
2700                })
2701                .bg(linear_gradient(
2702                    90.,
2703                    linear_color_stop(color, 1.),
2704                    linear_color_stop(color.opacity(0.2), 0.),
2705                ))
2706        };
2707
2708        v_flex().gap_1().mb_3().map(|element| {
2709            if !edit_tools {
2710                element.child(
2711                    v_flex()
2712                        .child(
2713                            h_flex()
2714                                .group("disclosure-header")
2715                                .relative()
2716                                .gap_1p5()
2717                                .justify_between()
2718                                .opacity(0.8)
2719                                .hover(|style| style.opacity(1.))
2720                                .when(!is_status_finished, |this| this.pr_2())
2721                                .child(
2722                                    h_flex()
2723                                        .id("tool-label-container")
2724                                        .gap_1p5()
2725                                        .max_w_full()
2726                                        .overflow_x_scroll()
2727                                        .child(
2728                                            Icon::new(tool_use.icon)
2729                                                .size(IconSize::XSmall)
2730                                                .color(Color::Muted),
2731                                        )
2732                                        .child(
2733                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2734                                                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| {
2735                                                    open_markdown_link(text, workspace.clone(), window, cx);
2736                                                }}))
2737                                            ),
2738                                        ),
2739                                )
2740                                .child(
2741                                    h_flex()
2742                                        .gap_1()
2743                                        .child(
2744                                            div().visible_on_hover("disclosure-header").child(
2745                                                Disclosure::new("tool-use-disclosure", is_open)
2746                                                    .opened_icon(IconName::ChevronUp)
2747                                                    .closed_icon(IconName::ChevronDown)
2748                                                    .on_click(cx.listener({
2749                                                        let tool_use_id = tool_use.id.clone();
2750                                                        move |this, _event, _window, _cx| {
2751                                                            let is_open = this
2752                                                                .expanded_tool_uses
2753                                                                .entry(tool_use_id.clone())
2754                                                                .or_insert(false);
2755
2756                                                            *is_open = !*is_open;
2757                                                        }
2758                                                    })),
2759                                            ),
2760                                        )
2761                                        .child(status_icons),
2762                                )
2763                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2764                        )
2765                        .map(|parent| {
2766                            if !is_open {
2767                                return parent;
2768                            }
2769
2770                            parent.child(
2771                                v_flex()
2772                                    .mt_1()
2773                                    .border_1()
2774                                    .border_color(self.tool_card_border_color(cx))
2775                                    .bg(cx.theme().colors().editor_background)
2776                                    .rounded_lg()
2777                                    .child(results_content),
2778                            )
2779                        }),
2780                )
2781            } else {
2782                v_flex()
2783                    .mb_2()
2784                    .rounded_lg()
2785                    .border_1()
2786                    .border_color(self.tool_card_border_color(cx))
2787                    .overflow_hidden()
2788                    .child(
2789                        h_flex()
2790                            .group("disclosure-header")
2791                            .relative()
2792                            .justify_between()
2793                            .py_1()
2794                            .map(|element| {
2795                                if is_status_finished {
2796                                    element.pl_2().pr_0p5()
2797                                } else {
2798                                    element.px_2()
2799                                }
2800                            })
2801                            .bg(self.tool_card_header_bg(cx))
2802                            .map(|element| {
2803                                if is_open {
2804                                    element.border_b_1().rounded_t_md()
2805                                } else if needs_confirmation {
2806                                    element.rounded_t_md()
2807                                } else {
2808                                    element.rounded_md()
2809                                }
2810                            })
2811                            .border_color(self.tool_card_border_color(cx))
2812                            .child(
2813                                h_flex()
2814                                    .id("tool-label-container")
2815                                    .gap_1p5()
2816                                    .max_w_full()
2817                                    .overflow_x_scroll()
2818                                    .child(
2819                                        Icon::new(tool_use.icon)
2820                                            .size(IconSize::XSmall)
2821                                            .color(Color::Muted),
2822                                    )
2823                                    .child(
2824                                        h_flex().pr_8().text_ui_sm(cx).children(
2825                                            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| {
2826                                                open_markdown_link(text, workspace.clone(), window, cx);
2827                                            }}))
2828                                        ),
2829                                    ),
2830                            )
2831                            .child(
2832                                h_flex()
2833                                    .gap_1()
2834                                    .child(
2835                                        div().visible_on_hover("disclosure-header").child(
2836                                            Disclosure::new("tool-use-disclosure", is_open)
2837                                                .opened_icon(IconName::ChevronUp)
2838                                                .closed_icon(IconName::ChevronDown)
2839                                                .on_click(cx.listener({
2840                                                    let tool_use_id = tool_use.id.clone();
2841                                                    move |this, _event, _window, _cx| {
2842                                                        let is_open = this
2843                                                            .expanded_tool_uses
2844                                                            .entry(tool_use_id.clone())
2845                                                            .or_insert(false);
2846
2847                                                        *is_open = !*is_open;
2848                                                    }
2849                                                })),
2850                                        ),
2851                                    )
2852                                    .child(status_icons),
2853                            )
2854                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2855                    )
2856                    .map(|parent| {
2857                        if !is_open {
2858                            return parent;
2859                        }
2860
2861                        parent.child(
2862                            v_flex()
2863                                .bg(cx.theme().colors().editor_background)
2864                                .map(|element| {
2865                                    if  needs_confirmation {
2866                                        element.rounded_none()
2867                                    } else {
2868                                        element.rounded_b_lg()
2869                                    }
2870                                })
2871                                .child(results_content),
2872                        )
2873                    })
2874                    .when(needs_confirmation, |this| {
2875                        this.child(
2876                            h_flex()
2877                                .py_1()
2878                                .pl_2()
2879                                .pr_1()
2880                                .gap_1()
2881                                .justify_between()
2882                                .bg(cx.theme().colors().editor_background)
2883                                .border_t_1()
2884                                .border_color(self.tool_card_border_color(cx))
2885                                .rounded_b_lg()
2886                                .child(
2887                                    Label::new("Waiting for Confirmation…")
2888                                        .color(Color::Muted)
2889                                        .size(LabelSize::Small)
2890                                        .with_animation(
2891                                            "generating-label",
2892                                            Animation::new(Duration::from_secs(1)).repeat(),
2893                                            |mut label, delta| {
2894                                                let text = match delta {
2895                                                    d if d < 0.25 => "Waiting for Confirmation",
2896                                                    d if d < 0.5 => "Waiting for Confirmation.",
2897                                                    d if d < 0.75 => "Waiting for Confirmation..",
2898                                                    _ => "Waiting for Confirmation...",
2899                                                };
2900                                                label.set_text(text);
2901                                                label
2902                                            },
2903                                        )
2904                                        .with_animation(
2905                                            "pulsating-label",
2906                                            Animation::new(Duration::from_secs(2))
2907                                                .repeat()
2908                                                .with_easing(pulsating_between(0.6, 1.)),
2909                                            |label, delta| label.map_element(|label| label.alpha(delta)),
2910                                        ),
2911                                )
2912                                .child(
2913                                    h_flex()
2914                                        .gap_0p5()
2915                                        .child({
2916                                            let tool_id = tool_use.id.clone();
2917                                            Button::new(
2918                                                "always-allow-tool-action",
2919                                                "Always Allow",
2920                                            )
2921                                            .label_size(LabelSize::Small)
2922                                            .icon(IconName::CheckDouble)
2923                                            .icon_position(IconPosition::Start)
2924                                            .icon_size(IconSize::Small)
2925                                            .icon_color(Color::Success)
2926                                            .tooltip(move |window, cx|  {
2927                                                Tooltip::with_meta(
2928                                                    "Never ask for permission",
2929                                                    None,
2930                                                    "Restore the original behavior in your Agent Panel settings",
2931                                                    window,
2932                                                    cx,
2933                                                )
2934                                            })
2935                                            .on_click(cx.listener(
2936                                                move |this, event, window, cx| {
2937                                                    if let Some(fs) = fs.clone() {
2938                                                        update_settings_file::<AssistantSettings>(
2939                                                            fs.clone(),
2940                                                            cx,
2941                                                            |settings, _| {
2942                                                                settings.set_always_allow_tool_actions(true);
2943                                                            },
2944                                                        );
2945                                                    }
2946                                                    this.handle_allow_tool(
2947                                                        tool_id.clone(),
2948                                                        event,
2949                                                        window,
2950                                                        cx,
2951                                                    )
2952                                                },
2953                                            ))
2954                                        })
2955                                        .child(ui::Divider::vertical())
2956                                        .child({
2957                                            let tool_id = tool_use.id.clone();
2958                                            Button::new("allow-tool-action", "Allow")
2959                                                .label_size(LabelSize::Small)
2960                                                .icon(IconName::Check)
2961                                                .icon_position(IconPosition::Start)
2962                                                .icon_size(IconSize::Small)
2963                                                .icon_color(Color::Success)
2964                                                .on_click(cx.listener(
2965                                                    move |this, event, window, cx| {
2966                                                        this.handle_allow_tool(
2967                                                            tool_id.clone(),
2968                                                            event,
2969                                                            window,
2970                                                            cx,
2971                                                        )
2972                                                    },
2973                                                ))
2974                                        })
2975                                        .child({
2976                                            let tool_id = tool_use.id.clone();
2977                                            let tool_name: Arc<str> = tool_use.name.into();
2978                                            Button::new("deny-tool", "Deny")
2979                                                .label_size(LabelSize::Small)
2980                                                .icon(IconName::Close)
2981                                                .icon_position(IconPosition::Start)
2982                                                .icon_size(IconSize::Small)
2983                                                .icon_color(Color::Error)
2984                                                .on_click(cx.listener(
2985                                                    move |this, event, window, cx| {
2986                                                        this.handle_deny_tool(
2987                                                            tool_id.clone(),
2988                                                            tool_name.clone(),
2989                                                            event,
2990                                                            window,
2991                                                            cx,
2992                                                        )
2993                                                    },
2994                                                ))
2995                                        }),
2996                                ),
2997                        )
2998                    })
2999            }
3000        }).into_any_element()
3001    }
3002
3003    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3004        let project_context = self.thread.read(cx).project_context();
3005        let project_context = project_context.borrow();
3006        let Some(project_context) = project_context.as_ref() else {
3007            return div().into_any();
3008        };
3009
3010        let user_rules_text = if project_context.user_rules.is_empty() {
3011            None
3012        } else if project_context.user_rules.len() == 1 {
3013            let user_rules = &project_context.user_rules[0];
3014
3015            match user_rules.title.as_ref() {
3016                Some(title) => Some(format!("Using \"{title}\" user rule")),
3017                None => Some("Using user rule".into()),
3018            }
3019        } else {
3020            Some(format!(
3021                "Using {} user rules",
3022                project_context.user_rules.len()
3023            ))
3024        };
3025
3026        let first_user_rules_id = project_context
3027            .user_rules
3028            .first()
3029            .map(|user_rules| user_rules.uuid.0);
3030
3031        let rules_files = project_context
3032            .worktrees
3033            .iter()
3034            .filter_map(|worktree| worktree.rules_file.as_ref())
3035            .collect::<Vec<_>>();
3036
3037        let rules_file_text = match rules_files.as_slice() {
3038            &[] => None,
3039            &[rules_file] => Some(format!(
3040                "Using project {:?} file",
3041                rules_file.path_in_worktree
3042            )),
3043            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3044        };
3045
3046        if user_rules_text.is_none() && rules_file_text.is_none() {
3047            return div().into_any();
3048        }
3049
3050        v_flex()
3051            .pt_2()
3052            .px_2p5()
3053            .gap_1()
3054            .when_some(user_rules_text, |parent, user_rules_text| {
3055                parent.child(
3056                    h_flex()
3057                        .w_full()
3058                        .child(
3059                            Icon::new(RULES_ICON)
3060                                .size(IconSize::XSmall)
3061                                .color(Color::Disabled),
3062                        )
3063                        .child(
3064                            Label::new(user_rules_text)
3065                                .size(LabelSize::XSmall)
3066                                .color(Color::Muted)
3067                                .truncate()
3068                                .buffer_font(cx)
3069                                .ml_1p5()
3070                                .mr_0p5(),
3071                        )
3072                        .child(
3073                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3074                                .shape(ui::IconButtonShape::Square)
3075                                .icon_size(IconSize::XSmall)
3076                                .icon_color(Color::Ignored)
3077                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenPromptLibrary`  keybinding
3078                                .tooltip(Tooltip::text("View User Rules"))
3079                                .on_click(move |_event, window, cx| {
3080                                    window.dispatch_action(
3081                                        Box::new(OpenPromptLibrary {
3082                                            prompt_to_select: first_user_rules_id,
3083                                        }),
3084                                        cx,
3085                                    )
3086                                }),
3087                        ),
3088                )
3089            })
3090            .when_some(rules_file_text, |parent, rules_file_text| {
3091                parent.child(
3092                    h_flex()
3093                        .w_full()
3094                        .child(
3095                            Icon::new(IconName::File)
3096                                .size(IconSize::XSmall)
3097                                .color(Color::Disabled),
3098                        )
3099                        .child(
3100                            Label::new(rules_file_text)
3101                                .size(LabelSize::XSmall)
3102                                .color(Color::Muted)
3103                                .buffer_font(cx)
3104                                .ml_1p5()
3105                                .mr_0p5(),
3106                        )
3107                        .child(
3108                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3109                                .shape(ui::IconButtonShape::Square)
3110                                .icon_size(IconSize::XSmall)
3111                                .icon_color(Color::Ignored)
3112                                .on_click(cx.listener(Self::handle_open_rules))
3113                                .tooltip(Tooltip::text("View Rules")),
3114                        ),
3115                )
3116            })
3117            .into_any()
3118    }
3119
3120    fn handle_allow_tool(
3121        &mut self,
3122        tool_use_id: LanguageModelToolUseId,
3123        _: &ClickEvent,
3124        _window: &mut Window,
3125        cx: &mut Context<Self>,
3126    ) {
3127        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3128            .thread
3129            .read(cx)
3130            .pending_tool(&tool_use_id)
3131            .map(|tool_use| tool_use.status.clone())
3132        {
3133            self.thread.update(cx, |thread, cx| {
3134                thread.run_tool(
3135                    c.tool_use_id.clone(),
3136                    c.ui_text.clone(),
3137                    c.input.clone(),
3138                    &c.messages,
3139                    c.tool.clone(),
3140                    cx,
3141                );
3142            });
3143        }
3144    }
3145
3146    fn handle_deny_tool(
3147        &mut self,
3148        tool_use_id: LanguageModelToolUseId,
3149        tool_name: Arc<str>,
3150        _: &ClickEvent,
3151        _window: &mut Window,
3152        cx: &mut Context<Self>,
3153    ) {
3154        self.thread.update(cx, |thread, cx| {
3155            thread.deny_tool_use(tool_use_id, tool_name, cx);
3156        });
3157    }
3158
3159    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3160        let project_context = self.thread.read(cx).project_context();
3161        let project_context = project_context.borrow();
3162        let Some(project_context) = project_context.as_ref() else {
3163            return;
3164        };
3165
3166        let abs_paths = project_context
3167            .worktrees
3168            .iter()
3169            .flat_map(|worktree| worktree.rules_file.as_ref())
3170            .map(|rules_file| rules_file.abs_path.to_path_buf())
3171            .collect::<Vec<_>>();
3172
3173        if let Ok(task) = self.workspace.update(cx, move |workspace, cx| {
3174            // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3175            // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3176            // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3177            workspace.open_paths(abs_paths, OpenOptions::default(), None, window, cx)
3178        }) {
3179            task.detach();
3180        }
3181    }
3182
3183    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3184        for window in self.notifications.drain(..) {
3185            window
3186                .update(cx, |_, window, _| {
3187                    window.remove_window();
3188                })
3189                .ok();
3190
3191            self.notification_subscriptions.remove(&window);
3192        }
3193    }
3194
3195    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3196        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3197            return None;
3198        }
3199
3200        Some(
3201            div()
3202                .occlude()
3203                .id("active-thread-scrollbar")
3204                .on_mouse_move(cx.listener(|_, _, _, cx| {
3205                    cx.notify();
3206                    cx.stop_propagation()
3207                }))
3208                .on_hover(|_, _, cx| {
3209                    cx.stop_propagation();
3210                })
3211                .on_any_mouse_down(|_, _, cx| {
3212                    cx.stop_propagation();
3213                })
3214                .on_mouse_up(
3215                    MouseButton::Left,
3216                    cx.listener(|_, _, _, cx| {
3217                        cx.stop_propagation();
3218                    }),
3219                )
3220                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3221                    cx.notify();
3222                }))
3223                .h_full()
3224                .absolute()
3225                .right_1()
3226                .top_1()
3227                .bottom_0()
3228                .w(px(12.))
3229                .cursor_default()
3230                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3231        )
3232    }
3233
3234    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3235        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3236        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3237            cx.background_executor()
3238                .timer(SCROLLBAR_SHOW_INTERVAL)
3239                .await;
3240            thread
3241                .update(cx, |thread, cx| {
3242                    if !thread.scrollbar_state.is_dragging() {
3243                        thread.show_scrollbar = false;
3244                        cx.notify();
3245                    }
3246                })
3247                .log_err();
3248        }))
3249    }
3250}
3251
3252pub enum ActiveThreadEvent {
3253    EditingMessageTokenCountChanged,
3254}
3255
3256impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3257
3258impl Render for ActiveThread {
3259    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3260        v_flex()
3261            .size_full()
3262            .relative()
3263            .on_mouse_move(cx.listener(|this, _, _, cx| {
3264                this.show_scrollbar = true;
3265                this.hide_scrollbar_later(cx);
3266                cx.notify();
3267            }))
3268            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3269                this.show_scrollbar = true;
3270                this.hide_scrollbar_later(cx);
3271                cx.notify();
3272            }))
3273            .on_mouse_up(
3274                MouseButton::Left,
3275                cx.listener(|this, _, _, cx| {
3276                    this.hide_scrollbar_later(cx);
3277                }),
3278            )
3279            .child(list(self.list_state.clone()).flex_grow())
3280            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3281                this.child(scrollbar)
3282            })
3283    }
3284}
3285
3286pub(crate) fn open_context(
3287    id: ContextId,
3288    context_store: Entity<ContextStore>,
3289    workspace: Entity<Workspace>,
3290    window: &mut Window,
3291    cx: &mut App,
3292) {
3293    let Some(context) = context_store.read(cx).context_for_id(id) else {
3294        return;
3295    };
3296
3297    match context {
3298        AssistantContext::File(file_context) => {
3299            if let Some(project_path) = file_context.context_buffer.buffer.read(cx).project_path(cx)
3300            {
3301                workspace.update(cx, |workspace, cx| {
3302                    workspace
3303                        .open_path(project_path, None, true, window, cx)
3304                        .detach_and_log_err(cx);
3305                });
3306            }
3307        }
3308        AssistantContext::Directory(directory_context) => {
3309            let entry_id = directory_context.entry_id;
3310            workspace.update(cx, |workspace, cx| {
3311                workspace.project().update(cx, |_project, cx| {
3312                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3313                })
3314            })
3315        }
3316        AssistantContext::Symbol(symbol_context) => {
3317            if let Some(project_path) = symbol_context
3318                .context_symbol
3319                .buffer
3320                .read(cx)
3321                .project_path(cx)
3322            {
3323                let snapshot = symbol_context.context_symbol.buffer.read(cx).snapshot();
3324                let target_position = symbol_context
3325                    .context_symbol
3326                    .id
3327                    .range
3328                    .start
3329                    .to_point(&snapshot);
3330
3331                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3332                    .detach();
3333            }
3334        }
3335        AssistantContext::Selection(selection_context) => {
3336            if let Some(project_path) = selection_context
3337                .context_buffer
3338                .buffer
3339                .read(cx)
3340                .project_path(cx)
3341            {
3342                let snapshot = selection_context.context_buffer.buffer.read(cx).snapshot();
3343                let target_position = selection_context.range.start.to_point(&snapshot);
3344
3345                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3346                    .detach();
3347            }
3348        }
3349        AssistantContext::FetchedUrl(fetched_url_context) => {
3350            cx.open_url(&fetched_url_context.url);
3351        }
3352        AssistantContext::Thread(thread_context) => {
3353            let thread_id = thread_context.thread.read(cx).id().clone();
3354            workspace.update(cx, |workspace, cx| {
3355                if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3356                    panel.update(cx, |panel, cx| {
3357                        panel
3358                            .open_thread(&thread_id, window, cx)
3359                            .detach_and_log_err(cx)
3360                    });
3361                }
3362            })
3363        }
3364        AssistantContext::Rules(rules_context) => window.dispatch_action(
3365            Box::new(OpenPromptLibrary {
3366                prompt_to_select: Some(rules_context.prompt_id.0),
3367            }),
3368            cx,
3369        ),
3370        AssistantContext::Image(_) => {}
3371    }
3372}
3373
3374fn open_editor_at_position(
3375    project_path: project::ProjectPath,
3376    target_position: Point,
3377    workspace: &Entity<Workspace>,
3378    window: &mut Window,
3379    cx: &mut App,
3380) -> Task<()> {
3381    let open_task = workspace.update(cx, |workspace, cx| {
3382        workspace.open_path(project_path, None, true, window, cx)
3383    });
3384    window.spawn(cx, async move |cx| {
3385        if let Some(active_editor) = open_task
3386            .await
3387            .log_err()
3388            .and_then(|item| item.downcast::<Editor>())
3389        {
3390            active_editor
3391                .downgrade()
3392                .update_in(cx, |editor, window, cx| {
3393                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3394                })
3395                .log_err();
3396        }
3397    })
3398}