1use crate::context::{AssistantContext, ContextId};
   2use crate::context_picker::MentionLink;
   3use crate::thread::{
   4    LastRestoreCheckpoint, MessageId, MessageSegment, RequestKind, Thread, ThreadError,
   5    ThreadEvent, ThreadFeedback,
   6};
   7use crate::thread_store::{RulesLoadingError, ThreadStore};
   8use crate::tool_use::{PendingToolUseStatus, ToolUse, ToolUseStatus};
   9use crate::ui::{AddedContext, AgentNotification, AgentNotificationEvent, ContextPill};
  10use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  11use anyhow::Context as _;
  12use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  13use collections::{HashMap, HashSet};
  14use editor::scroll::Autoscroll;
  15use editor::{Editor, EditorElement, EditorStyle, MultiBuffer};
  16use gpui::{
  17    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardItem,
  18    DefiniteLength, EdgesRefinement, Empty, Entity, Focusable, Hsla, ListAlignment, ListState,
  19    MouseButton, PlatformDisplay, ScrollHandle, Stateful, StyleRefinement, Subscription, Task,
  20    TextStyle, TextStyleRefinement, Transformation, UnderlineStyle, WeakEntity, WindowHandle,
  21    linear_color_stop, linear_gradient, list, percentage, pulsating_between,
  22};
  23use language::{Buffer, LanguageRegistry};
  24use language_model::{LanguageModelRegistry, LanguageModelToolUseId, Role, StopReason};
  25use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  26use markdown::{Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  27use project::ProjectItem as _;
  28use rope::Point;
  29use settings::{Settings as _, update_settings_file};
  30use std::path::Path;
  31use std::rc::Rc;
  32use std::sync::Arc;
  33use std::time::Duration;
  34use text::ToPoint;
  35use theme::ThemeSettings;
  36use ui::{
  37    Disclosure, IconButton, KeyBinding, Scrollbar, ScrollbarState, TextSize, Tooltip, prelude::*,
  38};
  39use util::ResultExt as _;
  40use workspace::{OpenOptions, Workspace};
  41
  42use crate::context_store::ContextStore;
  43
  44pub struct ActiveThread {
  45    language_registry: Arc<LanguageRegistry>,
  46    thread_store: Entity<ThreadStore>,
  47    thread: Entity<Thread>,
  48    context_store: Entity<ContextStore>,
  49    workspace: WeakEntity<Workspace>,
  50    save_thread_task: Option<Task<()>>,
  51    messages: Vec<MessageId>,
  52    list_state: ListState,
  53    scrollbar_state: ScrollbarState,
  54    show_scrollbar: bool,
  55    hide_scrollbar_task: Option<Task<()>>,
  56    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  57    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  58    editing_message: Option<(MessageId, EditMessageState)>,
  59    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  60    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  61    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  62    last_error: Option<ThreadError>,
  63    notifications: Vec<WindowHandle<AgentNotification>>,
  64    copied_code_block_ids: HashSet<(MessageId, usize)>,
  65    _subscriptions: Vec<Subscription>,
  66    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  67    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  68}
  69
  70struct RenderedMessage {
  71    language_registry: Arc<LanguageRegistry>,
  72    segments: Vec<RenderedMessageSegment>,
  73}
  74
  75#[derive(Clone)]
  76struct RenderedToolUse {
  77    label: Entity<Markdown>,
  78    input: Entity<Markdown>,
  79    output: Entity<Markdown>,
  80}
  81
  82impl RenderedMessage {
  83    fn from_segments(
  84        segments: &[MessageSegment],
  85        language_registry: Arc<LanguageRegistry>,
  86        cx: &mut App,
  87    ) -> Self {
  88        let mut this = Self {
  89            language_registry,
  90            segments: Vec::with_capacity(segments.len()),
  91        };
  92        for segment in segments {
  93            this.push_segment(segment, cx);
  94        }
  95        this
  96    }
  97
  98    fn append_thinking(&mut self, text: &String, cx: &mut App) {
  99        if let Some(RenderedMessageSegment::Thinking {
 100            content,
 101            scroll_handle,
 102        }) = self.segments.last_mut()
 103        {
 104            content.update(cx, |markdown, cx| {
 105                markdown.append(text, cx);
 106            });
 107            scroll_handle.scroll_to_bottom();
 108        } else {
 109            self.segments.push(RenderedMessageSegment::Thinking {
 110                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 111                scroll_handle: ScrollHandle::default(),
 112            });
 113        }
 114    }
 115
 116    fn append_text(&mut self, text: &String, cx: &mut App) {
 117        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 118            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 119        } else {
 120            self.segments
 121                .push(RenderedMessageSegment::Text(parse_markdown(
 122                    SharedString::from(text),
 123                    self.language_registry.clone(),
 124                    cx,
 125                )));
 126        }
 127    }
 128
 129    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 130        let rendered_segment = match segment {
 131            MessageSegment::Thinking(text) => RenderedMessageSegment::Thinking {
 132                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 133                scroll_handle: ScrollHandle::default(),
 134            },
 135            MessageSegment::Text(text) => RenderedMessageSegment::Text(parse_markdown(
 136                text.into(),
 137                self.language_registry.clone(),
 138                cx,
 139            )),
 140        };
 141        self.segments.push(rendered_segment);
 142    }
 143}
 144
 145enum RenderedMessageSegment {
 146    Thinking {
 147        content: Entity<Markdown>,
 148        scroll_handle: ScrollHandle,
 149    },
 150    Text(Entity<Markdown>),
 151}
 152
 153fn parse_markdown(
 154    text: SharedString,
 155    language_registry: Arc<LanguageRegistry>,
 156    cx: &mut App,
 157) -> Entity<Markdown> {
 158    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 159}
 160
 161fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 162    let theme_settings = ThemeSettings::get_global(cx);
 163    let colors = cx.theme().colors();
 164    let ui_font_size = TextSize::Default.rems(cx);
 165    let buffer_font_size = TextSize::Small.rems(cx);
 166    let mut text_style = window.text_style();
 167
 168    text_style.refine(&TextStyleRefinement {
 169        font_family: Some(theme_settings.ui_font.family.clone()),
 170        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 171        font_features: Some(theme_settings.ui_font.features.clone()),
 172        font_size: Some(ui_font_size.into()),
 173        color: Some(cx.theme().colors().text),
 174        ..Default::default()
 175    });
 176
 177    MarkdownStyle {
 178        base_text_style: text_style,
 179        syntax: cx.theme().syntax().clone(),
 180        selection_background_color: cx.theme().players().local().selection,
 181        code_block_overflow_x_scroll: true,
 182        table_overflow_x_scroll: true,
 183        code_block: StyleRefinement {
 184            padding: EdgesRefinement {
 185                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 186                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 187                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 188                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 189            },
 190            background: Some(colors.editor_background.into()),
 191            text: Some(TextStyleRefinement {
 192                font_family: Some(theme_settings.buffer_font.family.clone()),
 193                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 194                font_features: Some(theme_settings.buffer_font.features.clone()),
 195                font_size: Some(buffer_font_size.into()),
 196                ..Default::default()
 197            }),
 198            ..Default::default()
 199        },
 200        inline_code: TextStyleRefinement {
 201            font_family: Some(theme_settings.buffer_font.family.clone()),
 202            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 203            font_features: Some(theme_settings.buffer_font.features.clone()),
 204            font_size: Some(buffer_font_size.into()),
 205            background_color: Some(colors.editor_foreground.opacity(0.08)),
 206            ..Default::default()
 207        },
 208        link: TextStyleRefinement {
 209            background_color: Some(colors.editor_foreground.opacity(0.025)),
 210            underline: Some(UnderlineStyle {
 211                color: Some(colors.text_accent.opacity(0.5)),
 212                thickness: px(1.),
 213                ..Default::default()
 214            }),
 215            ..Default::default()
 216        },
 217        link_callback: Some(Rc::new(move |url, cx| {
 218            if MentionLink::is_valid(url) {
 219                let colors = cx.theme().colors();
 220                Some(TextStyleRefinement {
 221                    background_color: Some(colors.element_background),
 222                    ..Default::default()
 223                })
 224            } else {
 225                None
 226            }
 227        })),
 228        ..Default::default()
 229    }
 230}
 231
 232fn render_tool_use_markdown(
 233    text: SharedString,
 234    language_registry: Arc<LanguageRegistry>,
 235    cx: &mut App,
 236) -> Entity<Markdown> {
 237    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 238}
 239
 240fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 241    let theme_settings = ThemeSettings::get_global(cx);
 242    let colors = cx.theme().colors();
 243    let ui_font_size = TextSize::Default.rems(cx);
 244    let buffer_font_size = TextSize::Small.rems(cx);
 245    let mut text_style = window.text_style();
 246
 247    text_style.refine(&TextStyleRefinement {
 248        font_family: Some(theme_settings.ui_font.family.clone()),
 249        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 250        font_features: Some(theme_settings.ui_font.features.clone()),
 251        font_size: Some(ui_font_size.into()),
 252        color: Some(cx.theme().colors().text),
 253        ..Default::default()
 254    });
 255
 256    MarkdownStyle {
 257        base_text_style: text_style,
 258        syntax: cx.theme().syntax().clone(),
 259        selection_background_color: cx.theme().players().local().selection,
 260        code_block_overflow_x_scroll: true,
 261        code_block: StyleRefinement {
 262            margin: EdgesRefinement::default(),
 263            padding: EdgesRefinement::default(),
 264            background: Some(colors.editor_background.into()),
 265            border_color: None,
 266            border_widths: EdgesRefinement::default(),
 267            text: Some(TextStyleRefinement {
 268                font_family: Some(theme_settings.buffer_font.family.clone()),
 269                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 270                font_features: Some(theme_settings.buffer_font.features.clone()),
 271                font_size: Some(buffer_font_size.into()),
 272                ..Default::default()
 273            }),
 274            ..Default::default()
 275        },
 276        inline_code: TextStyleRefinement {
 277            font_family: Some(theme_settings.buffer_font.family.clone()),
 278            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 279            font_features: Some(theme_settings.buffer_font.features.clone()),
 280            font_size: Some(TextSize::XSmall.rems(cx).into()),
 281            ..Default::default()
 282        },
 283        heading: StyleRefinement {
 284            text: Some(TextStyleRefinement {
 285                font_size: Some(ui_font_size.into()),
 286                ..Default::default()
 287            }),
 288            ..Default::default()
 289        },
 290        ..Default::default()
 291    }
 292}
 293
 294const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 295
 296fn render_markdown_code_block(
 297    message_id: MessageId,
 298    ix: usize,
 299    kind: &CodeBlockKind,
 300    parsed_markdown: &ParsedMarkdown,
 301    metadata: CodeBlockMetadata,
 302    active_thread: Entity<ActiveThread>,
 303    workspace: WeakEntity<Workspace>,
 304    _window: &Window,
 305    cx: &App,
 306) -> Div {
 307    let label = match kind {
 308        CodeBlockKind::Indented => None,
 309        CodeBlockKind::Fenced => Some(
 310            h_flex()
 311                .gap_1()
 312                .child(
 313                    Icon::new(IconName::Code)
 314                        .color(Color::Muted)
 315                        .size(IconSize::XSmall),
 316                )
 317                .child(Label::new("untitled").size(LabelSize::Small))
 318                .into_any_element(),
 319        ),
 320        CodeBlockKind::FencedLang(raw_language_name) => Some(
 321            h_flex()
 322                .gap_1()
 323                .children(
 324                    parsed_markdown
 325                        .languages_by_name
 326                        .get(raw_language_name)
 327                        .and_then(|language| {
 328                            language
 329                                .config()
 330                                .matcher
 331                                .path_suffixes
 332                                .iter()
 333                                .find_map(|extension| {
 334                                    file_icons::FileIcons::get_icon(Path::new(extension), cx)
 335                                })
 336                                .map(Icon::from_path)
 337                                .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
 338                        }),
 339                )
 340                .child(
 341                    Label::new(
 342                        parsed_markdown
 343                            .languages_by_name
 344                            .get(raw_language_name)
 345                            .map(|language| language.name().into())
 346                            .clone()
 347                            .unwrap_or_else(|| raw_language_name.clone()),
 348                    )
 349                    .size(LabelSize::Small),
 350                )
 351                .into_any_element(),
 352        ),
 353        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 354            let content = if let Some(parent) = path_range.path.parent() {
 355                h_flex()
 356                    .ml_1()
 357                    .gap_1()
 358                    .child(
 359                        Label::new(file_name.to_string_lossy().to_string()).size(LabelSize::Small),
 360                    )
 361                    .child(
 362                        Label::new(parent.to_string_lossy().to_string())
 363                            .color(Color::Muted)
 364                            .size(LabelSize::Small),
 365                    )
 366                    .into_any_element()
 367            } else {
 368                Label::new(path_range.path.to_string_lossy().to_string())
 369                    .size(LabelSize::Small)
 370                    .ml_1()
 371                    .into_any_element()
 372            };
 373
 374            h_flex()
 375                .id(("code-block-header-label", ix))
 376                .w_full()
 377                .max_w_full()
 378                .px_1()
 379                .gap_0p5()
 380                .cursor_pointer()
 381                .rounded_sm()
 382                .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 383                .tooltip(Tooltip::text("Jump to File"))
 384                .child(
 385                    h_flex()
 386                        .gap_0p5()
 387                        .children(
 388                            file_icons::FileIcons::get_icon(&path_range.path, cx)
 389                                .map(Icon::from_path)
 390                                .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 391                        )
 392                        .child(content)
 393                        .child(
 394                            Icon::new(IconName::ArrowUpRight)
 395                                .size(IconSize::XSmall)
 396                                .color(Color::Ignored),
 397                        ),
 398                )
 399                .on_click({
 400                    let path_range = path_range.clone();
 401                    move |_, window, cx| {
 402                        workspace
 403                            .update(cx, {
 404                                |workspace, cx| {
 405                                    if let Some(project_path) = workspace
 406                                        .project()
 407                                        .read(cx)
 408                                        .find_project_path(&path_range.path, cx)
 409                                    {
 410                                        let target = path_range.range.as_ref().map(|range| {
 411                                            Point::new(
 412                                                // Line number is 1-based
 413                                                range.start.line.saturating_sub(1),
 414                                                range.start.col.unwrap_or(0),
 415                                            )
 416                                        });
 417                                        let open_task = workspace.open_path(
 418                                            project_path,
 419                                            None,
 420                                            true,
 421                                            window,
 422                                            cx,
 423                                        );
 424                                        window
 425                                            .spawn(cx, async move |cx| {
 426                                                let item = open_task.await?;
 427                                                if let Some(target) = target {
 428                                                    if let Some(active_editor) =
 429                                                        item.downcast::<Editor>()
 430                                                    {
 431                                                        active_editor
 432                                                            .downgrade()
 433                                                            .update_in(cx, |editor, window, cx| {
 434                                                                editor
 435                                                                    .go_to_singleton_buffer_point(
 436                                                                        target, window, cx,
 437                                                                    );
 438                                                            })
 439                                                            .log_err();
 440                                                    }
 441                                                }
 442                                                anyhow::Ok(())
 443                                            })
 444                                            .detach_and_log_err(cx);
 445                                    }
 446                                }
 447                            })
 448                            .ok();
 449                    }
 450                })
 451                .into_any_element()
 452        }),
 453    };
 454
 455    let codeblock_was_copied = active_thread
 456        .read(cx)
 457        .copied_code_block_ids
 458        .contains(&(message_id, ix));
 459
 460    let is_expanded = active_thread
 461        .read(cx)
 462        .expanded_code_blocks
 463        .get(&(message_id, ix))
 464        .copied()
 465        .unwrap_or(false);
 466
 467    let codeblock_header_bg = cx
 468        .theme()
 469        .colors()
 470        .element_background
 471        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 472
 473    let codeblock_header = h_flex()
 474        .group("codeblock_header")
 475        .p_1()
 476        .gap_1()
 477        .justify_between()
 478        .border_b_1()
 479        .border_color(cx.theme().colors().border_variant)
 480        .bg(codeblock_header_bg)
 481        .rounded_t_md()
 482        .children(label)
 483        .child(
 484            h_flex()
 485                .gap_1()
 486                .child(
 487                    div().visible_on_hover("codeblock_header").child(
 488                        IconButton::new(
 489                            ("copy-markdown-code", ix),
 490                            if codeblock_was_copied {
 491                                IconName::Check
 492                            } else {
 493                                IconName::Copy
 494                            },
 495                        )
 496                        .icon_color(Color::Muted)
 497                        .shape(ui::IconButtonShape::Square)
 498                        .tooltip(Tooltip::text("Copy Code"))
 499                        .on_click({
 500                            let active_thread = active_thread.clone();
 501                            let parsed_markdown = parsed_markdown.clone();
 502                            let code_block_range = metadata.content_range.clone();
 503                            move |_event, _window, cx| {
 504                                active_thread.update(cx, |this, cx| {
 505                                    this.copied_code_block_ids.insert((message_id, ix));
 506
 507                                    let code = parsed_markdown.source()[code_block_range.clone()]
 508                                        .to_string();
 509                                    cx.write_to_clipboard(ClipboardItem::new_string(code));
 510
 511                                    cx.spawn(async move |this, cx| {
 512                                        cx.background_executor()
 513                                            .timer(Duration::from_secs(2))
 514                                            .await;
 515
 516                                        cx.update(|cx| {
 517                                            this.update(cx, |this, cx| {
 518                                                this.copied_code_block_ids
 519                                                    .remove(&(message_id, ix));
 520                                                cx.notify();
 521                                            })
 522                                        })
 523                                        .ok();
 524                                    })
 525                                    .detach();
 526                                });
 527                            }
 528                        }),
 529                    ),
 530                )
 531                .when(
 532                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 533                    |header| {
 534                        header.child(
 535                            IconButton::new(
 536                                ("expand-collapse-code", ix),
 537                                if is_expanded {
 538                                    IconName::ChevronUp
 539                                } else {
 540                                    IconName::ChevronDown
 541                                },
 542                            )
 543                            .icon_color(Color::Muted)
 544                            .shape(ui::IconButtonShape::Square)
 545                            .tooltip(Tooltip::text(if is_expanded {
 546                                "Collapse Code"
 547                            } else {
 548                                "Expand Code"
 549                            }))
 550                            .on_click({
 551                                let active_thread = active_thread.clone();
 552                                move |_event, _window, cx| {
 553                                    active_thread.update(cx, |this, cx| {
 554                                        let is_expanded = this
 555                                            .expanded_code_blocks
 556                                            .entry((message_id, ix))
 557                                            .or_insert(false);
 558                                        *is_expanded = !*is_expanded;
 559                                        cx.notify();
 560                                    });
 561                                }
 562                            }),
 563                        )
 564                    },
 565                ),
 566        );
 567
 568    v_flex()
 569        .my_2()
 570        .overflow_hidden()
 571        .rounded_lg()
 572        .border_1()
 573        .border_color(cx.theme().colors().border_variant)
 574        .bg(cx.theme().colors().editor_background)
 575        .child(codeblock_header)
 576        .when(
 577            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 578            |this| {
 579                if is_expanded {
 580                    this.h_full()
 581                } else {
 582                    this.max_h_80()
 583                }
 584            },
 585        )
 586}
 587
 588fn open_markdown_link(
 589    text: SharedString,
 590    workspace: WeakEntity<Workspace>,
 591    window: &mut Window,
 592    cx: &mut App,
 593) {
 594    let Some(workspace) = workspace.upgrade() else {
 595        cx.open_url(&text);
 596        return;
 597    };
 598
 599    match MentionLink::try_parse(&text, &workspace, cx) {
 600        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 601            if entry.is_dir() {
 602                workspace.project().update(cx, |_, cx| {
 603                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 604                })
 605            } else {
 606                workspace
 607                    .open_path(path, None, true, window, cx)
 608                    .detach_and_log_err(cx);
 609            }
 610        }),
 611        Some(MentionLink::Symbol(path, symbol_name)) => {
 612            let open_task = workspace.update(cx, |workspace, cx| {
 613                workspace.open_path(path, None, true, window, cx)
 614            });
 615            window
 616                .spawn(cx, async move |cx| {
 617                    let active_editor = open_task
 618                        .await?
 619                        .downcast::<Editor>()
 620                        .context("Item is not an editor")?;
 621                    active_editor.update_in(cx, |editor, window, cx| {
 622                        let symbol_range = editor
 623                            .buffer()
 624                            .read(cx)
 625                            .snapshot(cx)
 626                            .outline(None)
 627                            .and_then(|outline| {
 628                                outline
 629                                    .find_most_similar(&symbol_name)
 630                                    .map(|(_, item)| item.range.clone())
 631                            })
 632                            .context("Could not find matching symbol")?;
 633
 634                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 635                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 636                        });
 637                        anyhow::Ok(())
 638                    })
 639                })
 640                .detach_and_log_err(cx);
 641        }
 642        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 643            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 644                panel.update(cx, |panel, cx| {
 645                    panel
 646                        .open_thread(&thread_id, window, cx)
 647                        .detach_and_log_err(cx)
 648                });
 649            }
 650        }),
 651        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 652        None => cx.open_url(&text),
 653    }
 654}
 655
 656struct EditMessageState {
 657    editor: Entity<Editor>,
 658}
 659
 660impl ActiveThread {
 661    pub fn new(
 662        thread: Entity<Thread>,
 663        thread_store: Entity<ThreadStore>,
 664        language_registry: Arc<LanguageRegistry>,
 665        context_store: Entity<ContextStore>,
 666        workspace: WeakEntity<Workspace>,
 667        window: &mut Window,
 668        cx: &mut Context<Self>,
 669    ) -> Self {
 670        let subscriptions = vec![
 671            cx.observe(&thread, |_, _, cx| cx.notify()),
 672            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 673            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 674        ];
 675
 676        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 677            let this = cx.entity().downgrade();
 678            move |ix, window: &mut Window, cx: &mut App| {
 679                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 680                    .unwrap()
 681            }
 682        });
 683
 684        let mut this = Self {
 685            language_registry,
 686            thread_store,
 687            thread: thread.clone(),
 688            context_store,
 689            workspace,
 690            save_thread_task: None,
 691            messages: Vec::new(),
 692            rendered_messages_by_id: HashMap::default(),
 693            rendered_tool_uses: HashMap::default(),
 694            expanded_tool_uses: HashMap::default(),
 695            expanded_thinking_segments: HashMap::default(),
 696            expanded_code_blocks: HashMap::default(),
 697            list_state: list_state.clone(),
 698            scrollbar_state: ScrollbarState::new(list_state),
 699            show_scrollbar: false,
 700            hide_scrollbar_task: None,
 701            editing_message: None,
 702            last_error: None,
 703            copied_code_block_ids: HashSet::default(),
 704            notifications: Vec::new(),
 705            _subscriptions: subscriptions,
 706            notification_subscriptions: HashMap::default(),
 707            open_feedback_editors: HashMap::default(),
 708        };
 709
 710        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 711            this.push_message(&message.id, &message.segments, window, cx);
 712
 713            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 714                this.render_tool_use_markdown(
 715                    tool_use.id.clone(),
 716                    tool_use.ui_text.clone(),
 717                    &tool_use.input,
 718                    tool_use.status.text(),
 719                    cx,
 720                );
 721            }
 722        }
 723
 724        this
 725    }
 726
 727    pub fn thread(&self) -> &Entity<Thread> {
 728        &self.thread
 729    }
 730
 731    pub fn is_empty(&self) -> bool {
 732        self.messages.is_empty()
 733    }
 734
 735    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 736        self.thread.read(cx).summary()
 737    }
 738
 739    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 740        self.thread.read(cx).summary_or_default()
 741    }
 742
 743    pub fn cancel_last_completion(&mut self, cx: &mut App) -> bool {
 744        self.last_error.take();
 745        self.thread
 746            .update(cx, |thread, cx| thread.cancel_last_completion(cx))
 747    }
 748
 749    pub fn last_error(&self) -> Option<ThreadError> {
 750        self.last_error.clone()
 751    }
 752
 753    pub fn clear_last_error(&mut self) {
 754        self.last_error.take();
 755    }
 756
 757    fn push_message(
 758        &mut self,
 759        id: &MessageId,
 760        segments: &[MessageSegment],
 761        _window: &mut Window,
 762        cx: &mut Context<Self>,
 763    ) {
 764        let old_len = self.messages.len();
 765        self.messages.push(*id);
 766        self.list_state.splice(old_len..old_len, 1);
 767
 768        let rendered_message =
 769            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 770        self.rendered_messages_by_id.insert(*id, rendered_message);
 771    }
 772
 773    fn edited_message(
 774        &mut self,
 775        id: &MessageId,
 776        segments: &[MessageSegment],
 777        _window: &mut Window,
 778        cx: &mut Context<Self>,
 779    ) {
 780        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 781            return;
 782        };
 783        self.list_state.splice(index..index + 1, 1);
 784        let rendered_message =
 785            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 786        self.rendered_messages_by_id.insert(*id, rendered_message);
 787    }
 788
 789    fn deleted_message(&mut self, id: &MessageId) {
 790        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 791            return;
 792        };
 793        self.messages.remove(index);
 794        self.list_state.splice(index..index + 1, 0);
 795        self.rendered_messages_by_id.remove(id);
 796    }
 797
 798    fn render_tool_use_markdown(
 799        &mut self,
 800        tool_use_id: LanguageModelToolUseId,
 801        tool_label: impl Into<SharedString>,
 802        tool_input: &serde_json::Value,
 803        tool_output: SharedString,
 804        cx: &mut Context<Self>,
 805    ) {
 806        let rendered = RenderedToolUse {
 807            label: render_tool_use_markdown(tool_label.into(), self.language_registry.clone(), cx),
 808            input: render_tool_use_markdown(
 809                format!(
 810                    "```json\n{}\n```",
 811                    serde_json::to_string_pretty(tool_input).unwrap_or_default()
 812                )
 813                .into(),
 814                self.language_registry.clone(),
 815                cx,
 816            ),
 817            output: render_tool_use_markdown(tool_output, self.language_registry.clone(), cx),
 818        };
 819        self.rendered_tool_uses
 820            .insert(tool_use_id.clone(), rendered);
 821    }
 822
 823    fn handle_thread_event(
 824        &mut self,
 825        _thread: &Entity<Thread>,
 826        event: &ThreadEvent,
 827        window: &mut Window,
 828        cx: &mut Context<Self>,
 829    ) {
 830        match event {
 831            ThreadEvent::ShowError(error) => {
 832                self.last_error = Some(error.clone());
 833            }
 834            ThreadEvent::StreamedCompletion
 835            | ThreadEvent::SummaryGenerated
 836            | ThreadEvent::SummaryChanged => {
 837                self.save_thread(cx);
 838            }
 839            ThreadEvent::Stopped(reason) => match reason {
 840                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 841                    let thread = self.thread.read(cx);
 842                    self.show_notification(
 843                        if thread.used_tools_since_last_user_message() {
 844                            "Finished running tools"
 845                        } else {
 846                            "New message"
 847                        },
 848                        IconName::ZedAssistant,
 849                        window,
 850                        cx,
 851                    );
 852                }
 853                _ => {}
 854            },
 855            ThreadEvent::ToolConfirmationNeeded => {
 856                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 857            }
 858            ThreadEvent::StreamedAssistantText(message_id, text) => {
 859                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 860                    rendered_message.append_text(text, cx);
 861                }
 862            }
 863            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 864                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 865                    rendered_message.append_thinking(text, cx);
 866                }
 867            }
 868            ThreadEvent::MessageAdded(message_id) => {
 869                if let Some(message_segments) = self
 870                    .thread
 871                    .read(cx)
 872                    .message(*message_id)
 873                    .map(|message| message.segments.clone())
 874                {
 875                    self.push_message(message_id, &message_segments, window, cx);
 876                }
 877
 878                self.save_thread(cx);
 879                cx.notify();
 880            }
 881            ThreadEvent::MessageEdited(message_id) => {
 882                if let Some(message_segments) = self
 883                    .thread
 884                    .read(cx)
 885                    .message(*message_id)
 886                    .map(|message| message.segments.clone())
 887                {
 888                    self.edited_message(message_id, &message_segments, window, cx);
 889                }
 890
 891                self.save_thread(cx);
 892                cx.notify();
 893            }
 894            ThreadEvent::MessageDeleted(message_id) => {
 895                self.deleted_message(message_id);
 896                self.save_thread(cx);
 897                cx.notify();
 898            }
 899            ThreadEvent::UsePendingTools { tool_uses } => {
 900                for tool_use in tool_uses {
 901                    self.render_tool_use_markdown(
 902                        tool_use.id.clone(),
 903                        tool_use.ui_text.clone(),
 904                        &tool_use.input,
 905                        "".into(),
 906                        cx,
 907                    );
 908                }
 909            }
 910            ThreadEvent::ToolFinished {
 911                pending_tool_use, ..
 912            } => {
 913                if let Some(tool_use) = pending_tool_use {
 914                    self.render_tool_use_markdown(
 915                        tool_use.id.clone(),
 916                        tool_use.ui_text.clone(),
 917                        &tool_use.input,
 918                        self.thread
 919                            .read(cx)
 920                            .tool_result(&tool_use.id)
 921                            .map(|result| result.content.clone().into())
 922                            .unwrap_or("".into()),
 923                        cx,
 924                    );
 925                }
 926            }
 927            ThreadEvent::CheckpointChanged => cx.notify(),
 928        }
 929    }
 930
 931    fn handle_rules_loading_error(
 932        &mut self,
 933        _thread_store: Entity<ThreadStore>,
 934        error: &RulesLoadingError,
 935        cx: &mut Context<Self>,
 936    ) {
 937        self.last_error = Some(ThreadError::Message {
 938            header: "Error loading rules file".into(),
 939            message: error.message.clone(),
 940        });
 941        cx.notify();
 942    }
 943
 944    fn show_notification(
 945        &mut self,
 946        caption: impl Into<SharedString>,
 947        icon: IconName,
 948        window: &mut Window,
 949        cx: &mut Context<ActiveThread>,
 950    ) {
 951        if window.is_window_active() || !self.notifications.is_empty() {
 952            return;
 953        }
 954
 955        let title = self
 956            .thread
 957            .read(cx)
 958            .summary()
 959            .unwrap_or("Agent Panel".into());
 960
 961        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
 962            NotifyWhenAgentWaiting::PrimaryScreen => {
 963                if let Some(primary) = cx.primary_display() {
 964                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
 965                }
 966            }
 967            NotifyWhenAgentWaiting::AllScreens => {
 968                let caption = caption.into();
 969                for screen in cx.displays() {
 970                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
 971                }
 972            }
 973            NotifyWhenAgentWaiting::Never => {
 974                // Don't show anything
 975            }
 976        }
 977    }
 978
 979    fn pop_up(
 980        &mut self,
 981        icon: IconName,
 982        caption: SharedString,
 983        title: SharedString,
 984        window: &mut Window,
 985        screen: Rc<dyn PlatformDisplay>,
 986        cx: &mut Context<'_, ActiveThread>,
 987    ) {
 988        let options = AgentNotification::window_options(screen, cx);
 989
 990        if let Some(screen_window) = cx
 991            .open_window(options, |_, cx| {
 992                cx.new(|_| AgentNotification::new(title.clone(), caption.clone(), icon))
 993            })
 994            .log_err()
 995        {
 996            if let Some(pop_up) = screen_window.entity(cx).log_err() {
 997                self.notification_subscriptions
 998                    .entry(screen_window)
 999                    .or_insert_with(Vec::new)
1000                    .push(cx.subscribe_in(&pop_up, window, {
1001                        |this, _, event, window, cx| match event {
1002                            AgentNotificationEvent::Accepted => {
1003                                let handle = window.window_handle();
1004                                cx.activate(true);
1005
1006                                let workspace_handle = this.workspace.clone();
1007
1008                                // If there are multiple Zed windows, activate the correct one.
1009                                cx.defer(move |cx| {
1010                                    handle
1011                                        .update(cx, |_view, window, _cx| {
1012                                            window.activate_window();
1013
1014                                            if let Some(workspace) = workspace_handle.upgrade() {
1015                                                workspace.update(_cx, |workspace, cx| {
1016                                                    workspace
1017                                                        .focus_panel::<AssistantPanel>(window, cx);
1018                                                });
1019                                            }
1020                                        })
1021                                        .log_err();
1022                                });
1023
1024                                this.dismiss_notifications(cx);
1025                            }
1026                            AgentNotificationEvent::Dismissed => {
1027                                this.dismiss_notifications(cx);
1028                            }
1029                        }
1030                    }));
1031
1032                self.notifications.push(screen_window);
1033
1034                // If the user manually refocuses the original window, dismiss the popup.
1035                self.notification_subscriptions
1036                    .entry(screen_window)
1037                    .or_insert_with(Vec::new)
1038                    .push({
1039                        let pop_up_weak = pop_up.downgrade();
1040
1041                        cx.observe_window_activation(window, move |_, window, cx| {
1042                            if window.is_window_active() {
1043                                if let Some(pop_up) = pop_up_weak.upgrade() {
1044                                    pop_up.update(cx, |_, cx| {
1045                                        cx.emit(AgentNotificationEvent::Dismissed);
1046                                    });
1047                                }
1048                            }
1049                        })
1050                    });
1051            }
1052        }
1053    }
1054
1055    /// Spawns a task to save the active thread.
1056    ///
1057    /// Only one task to save the thread will be in flight at a time.
1058    fn save_thread(&mut self, cx: &mut Context<Self>) {
1059        let thread = self.thread.clone();
1060        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1061            let task = this
1062                .update(cx, |this, cx| {
1063                    this.thread_store
1064                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1065                })
1066                .ok();
1067
1068            if let Some(task) = task {
1069                task.await.log_err();
1070            }
1071        }));
1072    }
1073
1074    fn start_editing_message(
1075        &mut self,
1076        message_id: MessageId,
1077        message_segments: &[MessageSegment],
1078        window: &mut Window,
1079        cx: &mut Context<Self>,
1080    ) {
1081        // User message should always consist of a single text segment,
1082        // therefore we can skip returning early if it's not a text segment.
1083        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1084            return;
1085        };
1086
1087        let buffer = cx.new(|cx| {
1088            MultiBuffer::singleton(cx.new(|cx| Buffer::local(message_text.clone(), cx)), cx)
1089        });
1090        let editor = cx.new(|cx| {
1091            let mut editor = Editor::new(
1092                editor::EditorMode::AutoHeight { max_lines: 8 },
1093                buffer,
1094                None,
1095                window,
1096                cx,
1097            );
1098            editor.focus_handle(cx).focus(window);
1099            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1100            editor
1101        });
1102        self.editing_message = Some((
1103            message_id,
1104            EditMessageState {
1105                editor: editor.clone(),
1106            },
1107        ));
1108        cx.notify();
1109    }
1110
1111    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1112        self.editing_message.take();
1113        cx.notify();
1114    }
1115
1116    fn confirm_editing_message(
1117        &mut self,
1118        _: &menu::Confirm,
1119        _: &mut Window,
1120        cx: &mut Context<Self>,
1121    ) {
1122        let Some((message_id, state)) = self.editing_message.take() else {
1123            return;
1124        };
1125        let edited_text = state.editor.read(cx).text(cx);
1126        self.thread.update(cx, |thread, cx| {
1127            thread.edit_message(
1128                message_id,
1129                Role::User,
1130                vec![MessageSegment::Text(edited_text)],
1131                cx,
1132            );
1133            for message_id in self.messages_after(message_id) {
1134                thread.delete_message(*message_id, cx);
1135            }
1136        });
1137
1138        let Some(model) = LanguageModelRegistry::read_global(cx).default_model() else {
1139            return;
1140        };
1141
1142        if model.provider.must_accept_terms(cx) {
1143            cx.notify();
1144            return;
1145        }
1146
1147        self.thread.update(cx, |thread, cx| {
1148            thread.send_to_model(model.model, RequestKind::Chat, cx)
1149        });
1150        cx.notify();
1151    }
1152
1153    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1154        self.messages
1155            .iter()
1156            .position(|id| *id == message_id)
1157            .map(|index| &self.messages[index + 1..])
1158            .unwrap_or(&[])
1159    }
1160
1161    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1162        self.cancel_editing_message(&menu::Cancel, window, cx);
1163    }
1164
1165    fn handle_regenerate_click(
1166        &mut self,
1167        _: &ClickEvent,
1168        window: &mut Window,
1169        cx: &mut Context<Self>,
1170    ) {
1171        self.confirm_editing_message(&menu::Confirm, window, cx);
1172    }
1173
1174    fn handle_feedback_click(
1175        &mut self,
1176        message_id: MessageId,
1177        feedback: ThreadFeedback,
1178        window: &mut Window,
1179        cx: &mut Context<Self>,
1180    ) {
1181        let report = self.thread.update(cx, |thread, cx| {
1182            thread.report_message_feedback(message_id, feedback, cx)
1183        });
1184
1185        cx.spawn(async move |this, cx| {
1186            report.await?;
1187            this.update(cx, |_this, cx| cx.notify())
1188        })
1189        .detach_and_log_err(cx);
1190
1191        match feedback {
1192            ThreadFeedback::Positive => {
1193                self.open_feedback_editors.remove(&message_id);
1194            }
1195            ThreadFeedback::Negative => {
1196                self.handle_show_feedback_comments(message_id, window, cx);
1197            }
1198        }
1199    }
1200
1201    fn handle_show_feedback_comments(
1202        &mut self,
1203        message_id: MessageId,
1204        window: &mut Window,
1205        cx: &mut Context<Self>,
1206    ) {
1207        let buffer = cx.new(|cx| {
1208            let empty_string = String::new();
1209            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1210        });
1211
1212        let editor = cx.new(|cx| {
1213            let mut editor = Editor::new(
1214                editor::EditorMode::AutoHeight { max_lines: 4 },
1215                buffer,
1216                None,
1217                window,
1218                cx,
1219            );
1220            editor.set_placeholder_text(
1221                "What went wrong? Share your feedback so we can improve.",
1222                cx,
1223            );
1224            editor
1225        });
1226
1227        editor.read(cx).focus_handle(cx).focus(window);
1228        self.open_feedback_editors.insert(message_id, editor);
1229        cx.notify();
1230    }
1231
1232    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1233        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1234            return;
1235        };
1236
1237        let report_task = self.thread.update(cx, |thread, cx| {
1238            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1239        });
1240
1241        let comments = editor.read(cx).text(cx);
1242        if !comments.is_empty() {
1243            let thread_id = self.thread.read(cx).id().clone();
1244            let comments_value = String::from(comments.as_str());
1245
1246            let message_content = self
1247                .thread
1248                .read(cx)
1249                .message(message_id)
1250                .map(|msg| msg.to_string())
1251                .unwrap_or_default();
1252
1253            telemetry::event!(
1254                "Assistant Thread Feedback Comments",
1255                thread_id,
1256                message_id = message_id.0,
1257                message_content,
1258                comments = comments_value
1259            );
1260
1261            self.open_feedback_editors.remove(&message_id);
1262
1263            cx.spawn(async move |this, cx| {
1264                report_task.await?;
1265                this.update(cx, |_this, cx| cx.notify())
1266            })
1267            .detach_and_log_err(cx);
1268        }
1269    }
1270
1271    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1272        let message_id = self.messages[ix];
1273        let Some(message) = self.thread.read(cx).message(message_id) else {
1274            return Empty.into_any();
1275        };
1276
1277        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1278            return Empty.into_any();
1279        };
1280
1281        let context_store = self.context_store.clone();
1282        let workspace = self.workspace.clone();
1283        let thread = self.thread.read(cx);
1284
1285        // Get all the data we need from thread before we start using it in closures
1286        let checkpoint = thread.checkpoint_for_message(message_id);
1287        let context = thread.context_for_message(message_id).collect::<Vec<_>>();
1288
1289        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1290        let has_tool_uses = !tool_uses.is_empty();
1291        let is_generating = thread.is_generating();
1292
1293        let is_first_message = ix == 0;
1294        let is_last_message = ix == self.messages.len() - 1;
1295
1296        let show_feedback = (!is_generating && is_last_message && message.role != Role::User)
1297            || self.messages.get(ix + 1).map_or(false, |next_id| {
1298                self.thread
1299                    .read(cx)
1300                    .message(*next_id)
1301                    .map_or(false, |next_message| {
1302                        next_message.role == Role::User
1303                            && thread.tool_uses_for_message(*next_id, cx).is_empty()
1304                            && thread.tool_results_for_message(*next_id).is_empty()
1305                    })
1306            });
1307
1308        let needs_confirmation = tool_uses.iter().any(|tool_use| tool_use.needs_confirmation);
1309
1310        let generating_label = (is_generating && is_last_message).then(|| {
1311            Label::new("Generating")
1312                .color(Color::Muted)
1313                .size(LabelSize::Small)
1314                .with_animations(
1315                    "generating-label",
1316                    vec![
1317                        Animation::new(Duration::from_secs(1)),
1318                        Animation::new(Duration::from_secs(1)).repeat(),
1319                    ],
1320                    |mut label, animation_ix, delta| {
1321                        match animation_ix {
1322                            0 => {
1323                                let chars_to_show = (delta * 10.).ceil() as usize;
1324                                let text = &"Generating"[0..chars_to_show];
1325                                label.set_text(text);
1326                            }
1327                            1 => {
1328                                let text = match delta {
1329                                    d if d < 0.25 => "Generating",
1330                                    d if d < 0.5 => "Generating.",
1331                                    d if d < 0.75 => "Generating..",
1332                                    _ => "Generating...",
1333                                };
1334                                label.set_text(text);
1335                            }
1336                            _ => {}
1337                        }
1338                        label
1339                    },
1340                )
1341                .with_animation(
1342                    "pulsating-label",
1343                    Animation::new(Duration::from_secs(2))
1344                        .repeat()
1345                        .with_easing(pulsating_between(0.6, 1.)),
1346                    |label, delta| label.map_element(|label| label.alpha(delta)),
1347                )
1348        });
1349
1350        // Don't render user messages that are just there for returning tool results.
1351        if message.role == Role::User && thread.message_has_tool_results(message_id) {
1352            if let Some(generating_label) = generating_label {
1353                return h_flex()
1354                    .w_full()
1355                    .h_10()
1356                    .py_1p5()
1357                    .pl_4()
1358                    .pb_3()
1359                    .child(generating_label)
1360                    .into_any_element();
1361            }
1362
1363            return Empty.into_any();
1364        }
1365
1366        let allow_editing_message = message.role == Role::User;
1367
1368        let edit_message_editor = self
1369            .editing_message
1370            .as_ref()
1371            .filter(|(id, _)| *id == message_id)
1372            .map(|(_, state)| state.editor.clone());
1373
1374        let colors = cx.theme().colors();
1375        let active_color = colors.element_active;
1376        let editor_bg_color = colors.editor_background;
1377        let bg_user_message_header = editor_bg_color.blend(active_color.opacity(0.25));
1378
1379        let open_as_markdown = IconButton::new("open-as-markdown", IconName::FileCode)
1380            .shape(ui::IconButtonShape::Square)
1381            .icon_size(IconSize::XSmall)
1382            .icon_color(Color::Ignored)
1383            .tooltip(Tooltip::text("Open Thread as Markdown"))
1384            .on_click(|_event, window, cx| {
1385                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1386            });
1387
1388        let feedback_container = h_flex().py_2().px_4().gap_1().justify_between();
1389        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1390            Some(feedback) => feedback_container
1391                .child(
1392                    Label::new(match feedback {
1393                        ThreadFeedback::Positive => "Thanks for your feedback!",
1394                        ThreadFeedback::Negative => {
1395                            "We appreciate your feedback and will use it to improve."
1396                        }
1397                    })
1398                    .color(Color::Muted)
1399                    .size(LabelSize::XSmall),
1400                )
1401                .child(
1402                    h_flex()
1403                        .pr_1()
1404                        .gap_1()
1405                        .child(
1406                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1407                                .shape(ui::IconButtonShape::Square)
1408                                .icon_size(IconSize::XSmall)
1409                                .icon_color(match feedback {
1410                                    ThreadFeedback::Positive => Color::Accent,
1411                                    ThreadFeedback::Negative => Color::Ignored,
1412                                })
1413                                .tooltip(Tooltip::text("Helpful Response"))
1414                                .on_click(cx.listener(move |this, _, window, cx| {
1415                                    this.handle_feedback_click(
1416                                        message_id,
1417                                        ThreadFeedback::Positive,
1418                                        window,
1419                                        cx,
1420                                    );
1421                                })),
1422                        )
1423                        .child(
1424                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1425                                .shape(ui::IconButtonShape::Square)
1426                                .icon_size(IconSize::XSmall)
1427                                .icon_color(match feedback {
1428                                    ThreadFeedback::Positive => Color::Ignored,
1429                                    ThreadFeedback::Negative => Color::Accent,
1430                                })
1431                                .tooltip(Tooltip::text("Not Helpful"))
1432                                .on_click(cx.listener(move |this, _, window, cx| {
1433                                    this.handle_feedback_click(
1434                                        message_id,
1435                                        ThreadFeedback::Negative,
1436                                        window,
1437                                        cx,
1438                                    );
1439                                })),
1440                        )
1441                        .child(open_as_markdown),
1442                )
1443                .into_any_element(),
1444            None => feedback_container
1445                .child(
1446                    Label::new(
1447                        "Rating the thread sends all of your current conversation to the Zed team.",
1448                    )
1449                    .color(Color::Muted)
1450                    .size(LabelSize::XSmall),
1451                )
1452                .child(
1453                    h_flex()
1454                        .pr_1()
1455                        .gap_1()
1456                        .child(
1457                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1458                                .icon_size(IconSize::XSmall)
1459                                .icon_color(Color::Ignored)
1460                                .shape(ui::IconButtonShape::Square)
1461                                .tooltip(Tooltip::text("Helpful Response"))
1462                                .on_click(cx.listener(move |this, _, window, cx| {
1463                                    this.handle_feedback_click(
1464                                        message_id,
1465                                        ThreadFeedback::Positive,
1466                                        window,
1467                                        cx,
1468                                    );
1469                                })),
1470                        )
1471                        .child(
1472                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1473                                .icon_size(IconSize::XSmall)
1474                                .icon_color(Color::Ignored)
1475                                .shape(ui::IconButtonShape::Square)
1476                                .tooltip(Tooltip::text("Not Helpful"))
1477                                .on_click(cx.listener(move |this, _, window, cx| {
1478                                    this.handle_feedback_click(
1479                                        message_id,
1480                                        ThreadFeedback::Negative,
1481                                        window,
1482                                        cx,
1483                                    );
1484                                })),
1485                        )
1486                        .child(open_as_markdown),
1487                )
1488                .into_any_element(),
1489        };
1490
1491        let message_is_empty = message.should_display_content();
1492        let has_content = !message_is_empty || !context.is_empty();
1493
1494        let message_content =
1495            has_content.then(|| {
1496                v_flex()
1497                    .gap_1p5()
1498                    .when(!message_is_empty, |parent| {
1499                        parent.child(
1500                            if let Some(edit_message_editor) = edit_message_editor.clone() {
1501                                let settings = ThemeSettings::get_global(cx);
1502                                let font_size = TextSize::Small.rems(cx);
1503                                let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1504
1505                                let text_style = TextStyle {
1506                                    color: cx.theme().colors().text,
1507                                    font_family: settings.buffer_font.family.clone(),
1508                                    font_fallbacks: settings.buffer_font.fallbacks.clone(),
1509                                    font_features: settings.buffer_font.features.clone(),
1510                                    font_size: font_size.into(),
1511                                    line_height: line_height.into(),
1512                                    ..Default::default()
1513                                };
1514
1515                                div()
1516                                    .key_context("EditMessageEditor")
1517                                    .on_action(cx.listener(Self::cancel_editing_message))
1518                                    .on_action(cx.listener(Self::confirm_editing_message))
1519                                    .min_h_6()
1520                                    .pt_1()
1521                                    .child(EditorElement::new(
1522                                        &edit_message_editor,
1523                                        EditorStyle {
1524                                            background: colors.editor_background,
1525                                            local_player: cx.theme().players().local(),
1526                                            text: text_style,
1527                                            syntax: cx.theme().syntax().clone(),
1528                                            ..Default::default()
1529                                        },
1530                                    ))
1531                                    .into_any()
1532                            } else {
1533                                div()
1534                                    .min_h_6()
1535                                    .text_ui(cx)
1536                                    .child(self.render_message_content(
1537                                        message_id,
1538                                        rendered_message,
1539                                        has_tool_uses,
1540                                        workspace.clone(),
1541                                        window,
1542                                        cx,
1543                                    ))
1544                                    .into_any()
1545                            },
1546                        )
1547                    })
1548                    .when(!context.is_empty(), |parent| {
1549                        parent.child(h_flex().flex_wrap().gap_1().children(
1550                            context.into_iter().map(|context| {
1551                                let context_id = context.id();
1552                                ContextPill::added(
1553                                    AddedContext::new(context, cx),
1554                                    false,
1555                                    false,
1556                                    None,
1557                                )
1558                                .on_click(Rc::new(cx.listener({
1559                                    let workspace = workspace.clone();
1560                                    let context_store = context_store.clone();
1561                                    move |_, _, window, cx| {
1562                                        if let Some(workspace) = workspace.upgrade() {
1563                                            open_context(
1564                                                context_id,
1565                                                context_store.clone(),
1566                                                workspace,
1567                                                window,
1568                                                cx,
1569                                            );
1570                                            cx.notify();
1571                                        }
1572                                    }
1573                                })))
1574                            }),
1575                        ))
1576                    })
1577            });
1578
1579        let styled_message = match message.role {
1580            Role::User => v_flex()
1581                .id(("message-container", ix))
1582                .map(|this| {
1583                    if is_first_message {
1584                        this.pt_2()
1585                    } else {
1586                        this.pt_4()
1587                    }
1588                })
1589                .pb_4()
1590                .pl_2()
1591                .pr_2p5()
1592                .child(
1593                    v_flex()
1594                        .bg(colors.editor_background)
1595                        .rounded_lg()
1596                        .border_1()
1597                        .border_color(colors.border)
1598                        .shadow_md()
1599                        .child(
1600                            h_flex()
1601                                .py_1()
1602                                .pl_2()
1603                                .pr_1()
1604                                .bg(bg_user_message_header)
1605                                .border_b_1()
1606                                .border_color(colors.border)
1607                                .justify_between()
1608                                .rounded_t_md()
1609                                .child(
1610                                    h_flex()
1611                                        .gap_1p5()
1612                                        .child(
1613                                            Icon::new(IconName::PersonCircle)
1614                                                .size(IconSize::XSmall)
1615                                                .color(Color::Muted),
1616                                        )
1617                                        .child(
1618                                            Label::new("You")
1619                                                .size(LabelSize::Small)
1620                                                .color(Color::Muted),
1621                                        ),
1622                                )
1623                                .child(
1624                                    h_flex()
1625                                        .gap_1()
1626                                        .when_some(
1627                                            edit_message_editor.clone(),
1628                                            |this, edit_message_editor| {
1629                                                let focus_handle =
1630                                                    edit_message_editor.focus_handle(cx);
1631                                                this.child(
1632                                                    Button::new("cancel-edit-message", "Cancel")
1633                                                        .label_size(LabelSize::Small)
1634                                                        .key_binding(
1635                                                            KeyBinding::for_action_in(
1636                                                                &menu::Cancel,
1637                                                                &focus_handle,
1638                                                                window,
1639                                                                cx,
1640                                                            )
1641                                                            .map(|kb| kb.size(rems_from_px(12.))),
1642                                                        )
1643                                                        .on_click(
1644                                                            cx.listener(Self::handle_cancel_click),
1645                                                        ),
1646                                                )
1647                                                .child(
1648                                                    Button::new(
1649                                                        "confirm-edit-message",
1650                                                        "Regenerate",
1651                                                    )
1652                                                    .label_size(LabelSize::Small)
1653                                                    .key_binding(
1654                                                        KeyBinding::for_action_in(
1655                                                            &menu::Confirm,
1656                                                            &focus_handle,
1657                                                            window,
1658                                                            cx,
1659                                                        )
1660                                                        .map(|kb| kb.size(rems_from_px(12.))),
1661                                                    )
1662                                                    .on_click(
1663                                                        cx.listener(Self::handle_regenerate_click),
1664                                                    ),
1665                                                )
1666                                            },
1667                                        )
1668                                        .when(
1669                                            edit_message_editor.is_none() && allow_editing_message,
1670                                            |this| {
1671                                                this.child(
1672                                                    Button::new("edit-message", "Edit")
1673                                                        .label_size(LabelSize::Small)
1674                                                        .on_click(cx.listener({
1675                                                            let message_segments =
1676                                                                message.segments.clone();
1677                                                            move |this, _, window, cx| {
1678                                                                this.start_editing_message(
1679                                                                    message_id,
1680                                                                    &message_segments,
1681                                                                    window,
1682                                                                    cx,
1683                                                                );
1684                                                            }
1685                                                        })),
1686                                                )
1687                                            },
1688                                        ),
1689                                ),
1690                        )
1691                        .child(div().p_2().children(message_content)),
1692                ),
1693            Role::Assistant => v_flex()
1694                .id(("message-container", ix))
1695                .ml_2p5()
1696                .pl_2()
1697                .pr_4()
1698                .children(message_content)
1699                .when(has_tool_uses, |parent| {
1700                    parent.children(
1701                        tool_uses
1702                            .into_iter()
1703                            .map(|tool_use| self.render_tool_use(tool_use, window, cx)),
1704                    )
1705                }),
1706            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1707                v_flex()
1708                    .bg(colors.editor_background)
1709                    .rounded_sm()
1710                    .child(div().p_4().children(message_content)),
1711            ),
1712        };
1713
1714        v_flex()
1715            .w_full()
1716            .when_some(checkpoint, |parent, checkpoint| {
1717                let mut is_pending = false;
1718                let mut error = None;
1719                if let Some(last_restore_checkpoint) =
1720                    self.thread.read(cx).last_restore_checkpoint()
1721                {
1722                    if last_restore_checkpoint.message_id() == message_id {
1723                        match last_restore_checkpoint {
1724                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1725                            LastRestoreCheckpoint::Error { error: err, .. } => {
1726                                error = Some(err.clone());
1727                            }
1728                        }
1729                    }
1730                }
1731
1732                let restore_checkpoint_button =
1733                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1734                        .icon(if error.is_some() {
1735                            IconName::XCircle
1736                        } else {
1737                            IconName::Undo
1738                        })
1739                        .icon_size(IconSize::XSmall)
1740                        .icon_position(IconPosition::Start)
1741                        .icon_color(if error.is_some() {
1742                            Some(Color::Error)
1743                        } else {
1744                            None
1745                        })
1746                        .label_size(LabelSize::XSmall)
1747                        .disabled(is_pending)
1748                        .on_click(cx.listener(move |this, _, _window, cx| {
1749                            this.thread.update(cx, |thread, cx| {
1750                                thread
1751                                    .restore_checkpoint(checkpoint.clone(), cx)
1752                                    .detach_and_log_err(cx);
1753                            });
1754                        }));
1755
1756                let restore_checkpoint_button = if is_pending {
1757                    restore_checkpoint_button
1758                        .with_animation(
1759                            ("pulsating-restore-checkpoint-button", ix),
1760                            Animation::new(Duration::from_secs(2))
1761                                .repeat()
1762                                .with_easing(pulsating_between(0.6, 1.)),
1763                            |label, delta| label.alpha(delta),
1764                        )
1765                        .into_any_element()
1766                } else if let Some(error) = error {
1767                    restore_checkpoint_button
1768                        .tooltip(Tooltip::text(error.to_string()))
1769                        .into_any_element()
1770                } else {
1771                    restore_checkpoint_button.into_any_element()
1772                };
1773
1774                parent.child(
1775                    h_flex()
1776                        .pt_2p5()
1777                        .px_2p5()
1778                        .w_full()
1779                        .gap_1()
1780                        .child(ui::Divider::horizontal())
1781                        .child(restore_checkpoint_button)
1782                        .child(ui::Divider::horizontal()),
1783                )
1784            })
1785            .when(is_first_message, |parent| {
1786                parent.child(self.render_rules_item(cx))
1787            })
1788            .child(styled_message)
1789            .when(!needs_confirmation && generating_label.is_some(), |this| {
1790                this.child(
1791                    h_flex()
1792                        .h_8()
1793                        .mt_2()
1794                        .mb_4()
1795                        .ml_4()
1796                        .py_1p5()
1797                        .child(generating_label.unwrap()),
1798                )
1799            })
1800            .when(show_feedback, move |parent| {
1801                parent.child(feedback_items).when_some(
1802                    self.open_feedback_editors.get(&message_id),
1803                    move |parent, feedback_editor| {
1804                        let focus_handle = feedback_editor.focus_handle(cx);
1805                        parent.child(
1806                            v_flex()
1807                                .key_context("AgentFeedbackMessageEditor")
1808                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1809                                    this.open_feedback_editors.remove(&message_id);
1810                                    cx.notify();
1811                                }))
1812                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1813                                    this.submit_feedback_message(message_id, cx);
1814                                    cx.notify();
1815                                }))
1816                                .on_action(cx.listener(Self::confirm_editing_message))
1817                                .mb_2()
1818                                .mx_4()
1819                                .p_2()
1820                                .rounded_md()
1821                                .border_1()
1822                                .border_color(cx.theme().colors().border)
1823                                .bg(cx.theme().colors().editor_background)
1824                                .child(feedback_editor.clone())
1825                                .child(
1826                                    h_flex()
1827                                        .gap_1()
1828                                        .justify_end()
1829                                        .child(
1830                                            Button::new("dismiss-feedback-message", "Cancel")
1831                                                .label_size(LabelSize::Small)
1832                                                .key_binding(
1833                                                    KeyBinding::for_action_in(
1834                                                        &menu::Cancel,
1835                                                        &focus_handle,
1836                                                        window,
1837                                                        cx,
1838                                                    )
1839                                                    .map(|kb| kb.size(rems_from_px(10.))),
1840                                                )
1841                                                .on_click(cx.listener(
1842                                                    move |this, _, _window, cx| {
1843                                                        this.open_feedback_editors
1844                                                            .remove(&message_id);
1845                                                        cx.notify();
1846                                                    },
1847                                                )),
1848                                        )
1849                                        .child(
1850                                            Button::new(
1851                                                "submit-feedback-message",
1852                                                "Share Feedback",
1853                                            )
1854                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1855                                            .label_size(LabelSize::Small)
1856                                            .key_binding(
1857                                                KeyBinding::for_action_in(
1858                                                    &menu::Confirm,
1859                                                    &focus_handle,
1860                                                    window,
1861                                                    cx,
1862                                                )
1863                                                .map(|kb| kb.size(rems_from_px(10.))),
1864                                            )
1865                                            .on_click(
1866                                                cx.listener(move |this, _, _window, cx| {
1867                                                    this.submit_feedback_message(message_id, cx);
1868                                                    cx.notify()
1869                                                }),
1870                                            ),
1871                                        ),
1872                                ),
1873                        )
1874                    },
1875                )
1876            })
1877            .into_any()
1878    }
1879
1880    fn render_message_content(
1881        &self,
1882        message_id: MessageId,
1883        rendered_message: &RenderedMessage,
1884        has_tool_uses: bool,
1885        workspace: WeakEntity<Workspace>,
1886        window: &Window,
1887        cx: &Context<Self>,
1888    ) -> impl IntoElement {
1889        let is_last_message = self.messages.last() == Some(&message_id);
1890        let is_generating = self.thread.read(cx).is_generating();
1891        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
1892            rendered_message
1893                .segments
1894                .iter()
1895                .enumerate()
1896                .next_back()
1897                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
1898                .map(|(index, _)| index)
1899        } else {
1900            None
1901        };
1902
1903        v_flex()
1904            .text_ui(cx)
1905            .gap_2()
1906            .children(
1907                rendered_message.segments.iter().enumerate().map(
1908                    |(index, segment)| match segment {
1909                        RenderedMessageSegment::Thinking {
1910                            content,
1911                            scroll_handle,
1912                        } => self
1913                            .render_message_thinking_segment(
1914                                message_id,
1915                                index,
1916                                content.clone(),
1917                                &scroll_handle,
1918                                Some(index) == pending_thinking_segment_index,
1919                                window,
1920                                cx,
1921                            )
1922                            .into_any_element(),
1923                        RenderedMessageSegment::Text(markdown) => div()
1924                            .child(
1925                                MarkdownElement::new(
1926                                    markdown.clone(),
1927                                    default_markdown_style(window, cx),
1928                                )
1929                                .code_block_renderer(markdown::CodeBlockRenderer::Custom {
1930                                    render: Arc::new({
1931                                        let workspace = workspace.clone();
1932                                        let active_thread = cx.entity();
1933                                        move |kind, parsed_markdown, range, metadata, window, cx| {
1934                                            render_markdown_code_block(
1935                                                message_id,
1936                                                range.start,
1937                                                kind,
1938                                                parsed_markdown,
1939                                                metadata,
1940                                                active_thread.clone(),
1941                                                workspace.clone(),
1942                                                window,
1943                                                cx,
1944                                            )
1945                                        }
1946                                    }),
1947                                    transform: Some(Arc::new({
1948                                        let active_thread = cx.entity();
1949                                        move |el, range, metadata, _, cx| {
1950                                            let is_expanded = active_thread
1951                                                .read(cx)
1952                                                .expanded_code_blocks
1953                                                .get(&(message_id, range.start))
1954                                                .copied()
1955                                                .unwrap_or(false);
1956
1957                                            if is_expanded
1958                                                || metadata.line_count
1959                                                    <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
1960                                            {
1961                                                return el;
1962                                            }
1963                                            el.child(
1964                                                div()
1965                                                    .absolute()
1966                                                    .bottom_0()
1967                                                    .left_0()
1968                                                    .w_full()
1969                                                    .h_1_4()
1970                                                    .rounded_b_lg()
1971                                                    .bg(gpui::linear_gradient(
1972                                                        0.,
1973                                                        gpui::linear_color_stop(
1974                                                            cx.theme().colors().editor_background,
1975                                                            0.,
1976                                                        ),
1977                                                        gpui::linear_color_stop(
1978                                                            cx.theme()
1979                                                                .colors()
1980                                                                .editor_background
1981                                                                .opacity(0.),
1982                                                            1.,
1983                                                        ),
1984                                                    )),
1985                                            )
1986                                        }
1987                                    })),
1988                                })
1989                                .on_url_click({
1990                                    let workspace = self.workspace.clone();
1991                                    move |text, window, cx| {
1992                                        open_markdown_link(text, workspace.clone(), window, cx);
1993                                    }
1994                                }),
1995                            )
1996                            .into_any_element(),
1997                    },
1998                ),
1999            )
2000    }
2001
2002    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2003        cx.theme().colors().border.opacity(0.5)
2004    }
2005
2006    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2007        cx.theme()
2008            .colors()
2009            .element_background
2010            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2011    }
2012
2013    fn render_message_thinking_segment(
2014        &self,
2015        message_id: MessageId,
2016        ix: usize,
2017        markdown: Entity<Markdown>,
2018        scroll_handle: &ScrollHandle,
2019        pending: bool,
2020        window: &Window,
2021        cx: &Context<Self>,
2022    ) -> impl IntoElement {
2023        let is_open = self
2024            .expanded_thinking_segments
2025            .get(&(message_id, ix))
2026            .copied()
2027            .unwrap_or_default();
2028
2029        let editor_bg = cx.theme().colors().panel_background;
2030
2031        div().map(|this| {
2032            if pending {
2033                this.v_flex()
2034                    .mt_neg_2()
2035                    .mb_1p5()
2036                    .child(
2037                        h_flex()
2038                            .group("disclosure-header")
2039                            .justify_between()
2040                            .child(
2041                                h_flex()
2042                                    .gap_1p5()
2043                                    .child(
2044                                        Icon::new(IconName::LightBulb)
2045                                            .size(IconSize::XSmall)
2046                                            .color(Color::Muted),
2047                                    )
2048                                    .child({
2049                                        Label::new("Thinking")
2050                                            .color(Color::Muted)
2051                                            .size(LabelSize::Small)
2052                                            .with_animation(
2053                                                "generating-label",
2054                                                Animation::new(Duration::from_secs(1)).repeat(),
2055                                                |mut label, delta| {
2056                                                    let text = match delta {
2057                                                        d if d < 0.25 => "Thinking",
2058                                                        d if d < 0.5 => "Thinking.",
2059                                                        d if d < 0.75 => "Thinking..",
2060                                                        _ => "Thinking...",
2061                                                    };
2062                                                    label.set_text(text);
2063                                                    label
2064                                                },
2065                                            )
2066                                            .with_animation(
2067                                                "pulsating-label",
2068                                                Animation::new(Duration::from_secs(2))
2069                                                    .repeat()
2070                                                    .with_easing(pulsating_between(0.6, 1.)),
2071                                                |label, delta| {
2072                                                    label.map_element(|label| label.alpha(delta))
2073                                                },
2074                                            )
2075                                    }),
2076                            )
2077                            .child(
2078                                h_flex()
2079                                    .gap_1()
2080                                    .child(
2081                                        div().visible_on_hover("disclosure-header").child(
2082                                            Disclosure::new("thinking-disclosure", is_open)
2083                                                .opened_icon(IconName::ChevronUp)
2084                                                .closed_icon(IconName::ChevronDown)
2085                                                .on_click(cx.listener({
2086                                                    move |this, _event, _window, _cx| {
2087                                                        let is_open = this
2088                                                            .expanded_thinking_segments
2089                                                            .entry((message_id, ix))
2090                                                            .or_insert(false);
2091
2092                                                        *is_open = !*is_open;
2093                                                    }
2094                                                })),
2095                                        ),
2096                                    )
2097                                    .child({
2098                                        Icon::new(IconName::ArrowCircle)
2099                                            .color(Color::Accent)
2100                                            .size(IconSize::Small)
2101                                            .with_animation(
2102                                                "arrow-circle",
2103                                                Animation::new(Duration::from_secs(2)).repeat(),
2104                                                |icon, delta| {
2105                                                    icon.transform(Transformation::rotate(
2106                                                        percentage(delta),
2107                                                    ))
2108                                                },
2109                                            )
2110                                    }),
2111                            ),
2112                    )
2113                    .when(!is_open, |this| {
2114                        let gradient_overlay = div()
2115                            .rounded_b_lg()
2116                            .h_full()
2117                            .absolute()
2118                            .w_full()
2119                            .bottom_0()
2120                            .left_0()
2121                            .bg(linear_gradient(
2122                                180.,
2123                                linear_color_stop(editor_bg, 1.),
2124                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2125                            ));
2126
2127                        this.child(
2128                            div()
2129                                .relative()
2130                                .bg(editor_bg)
2131                                .rounded_b_lg()
2132                                .mt_2()
2133                                .pl_4()
2134                                .child(
2135                                    div()
2136                                        .id(("thinking-content", ix))
2137                                        .max_h_20()
2138                                        .track_scroll(scroll_handle)
2139                                        .text_ui_sm(cx)
2140                                        .overflow_hidden()
2141                                        .child(
2142                                            MarkdownElement::new(
2143                                                markdown.clone(),
2144                                                default_markdown_style(window, cx),
2145                                            )
2146                                            .on_url_click({
2147                                                let workspace = self.workspace.clone();
2148                                                move |text, window, cx| {
2149                                                    open_markdown_link(
2150                                                        text,
2151                                                        workspace.clone(),
2152                                                        window,
2153                                                        cx,
2154                                                    );
2155                                                }
2156                                            }),
2157                                        ),
2158                                )
2159                                .child(gradient_overlay),
2160                        )
2161                    })
2162                    .when(is_open, |this| {
2163                        this.child(
2164                            div()
2165                                .id(("thinking-content", ix))
2166                                .h_full()
2167                                .bg(editor_bg)
2168                                .text_ui_sm(cx)
2169                                .child(
2170                                    MarkdownElement::new(
2171                                        markdown.clone(),
2172                                        default_markdown_style(window, cx),
2173                                    )
2174                                    .on_url_click({
2175                                        let workspace = self.workspace.clone();
2176                                        move |text, window, cx| {
2177                                            open_markdown_link(text, workspace.clone(), window, cx);
2178                                        }
2179                                    }),
2180                                ),
2181                        )
2182                    })
2183            } else {
2184                this.v_flex()
2185                    .mt_neg_2()
2186                    .child(
2187                        h_flex()
2188                            .group("disclosure-header")
2189                            .pr_1()
2190                            .justify_between()
2191                            .opacity(0.8)
2192                            .hover(|style| style.opacity(1.))
2193                            .child(
2194                                h_flex()
2195                                    .gap_1p5()
2196                                    .child(
2197                                        Icon::new(IconName::LightBulb)
2198                                            .size(IconSize::XSmall)
2199                                            .color(Color::Muted),
2200                                    )
2201                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2202                            )
2203                            .child(
2204                                div().visible_on_hover("disclosure-header").child(
2205                                    Disclosure::new("thinking-disclosure", is_open)
2206                                        .opened_icon(IconName::ChevronUp)
2207                                        .closed_icon(IconName::ChevronDown)
2208                                        .on_click(cx.listener({
2209                                            move |this, _event, _window, _cx| {
2210                                                let is_open = this
2211                                                    .expanded_thinking_segments
2212                                                    .entry((message_id, ix))
2213                                                    .or_insert(false);
2214
2215                                                *is_open = !*is_open;
2216                                            }
2217                                        })),
2218                                ),
2219                            ),
2220                    )
2221                    .child(
2222                        div()
2223                            .id(("thinking-content", ix))
2224                            .relative()
2225                            .mt_1p5()
2226                            .ml_1p5()
2227                            .pl_2p5()
2228                            .border_l_1()
2229                            .border_color(cx.theme().colors().border_variant)
2230                            .text_ui_sm(cx)
2231                            .when(is_open, |this| {
2232                                this.child(
2233                                    MarkdownElement::new(
2234                                        markdown.clone(),
2235                                        default_markdown_style(window, cx),
2236                                    )
2237                                    .on_url_click({
2238                                        let workspace = self.workspace.clone();
2239                                        move |text, window, cx| {
2240                                            open_markdown_link(text, workspace.clone(), window, cx);
2241                                        }
2242                                    }),
2243                                )
2244                            }),
2245                    )
2246            }
2247        })
2248    }
2249
2250    fn render_tool_use(
2251        &self,
2252        tool_use: ToolUse,
2253        window: &mut Window,
2254        cx: &mut Context<Self>,
2255    ) -> impl IntoElement + use<> {
2256        let is_open = self
2257            .expanded_tool_uses
2258            .get(&tool_use.id)
2259            .copied()
2260            .unwrap_or_default();
2261
2262        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2263
2264        let fs = self
2265            .workspace
2266            .upgrade()
2267            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2268        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2269        let edit_tools = tool_use.needs_confirmation;
2270
2271        let status_icons = div().child(match &tool_use.status {
2272            ToolUseStatus::Pending | ToolUseStatus::NeedsConfirmation => {
2273                let icon = Icon::new(IconName::Warning)
2274                    .color(Color::Warning)
2275                    .size(IconSize::Small);
2276                icon.into_any_element()
2277            }
2278            ToolUseStatus::Running => {
2279                let icon = Icon::new(IconName::ArrowCircle)
2280                    .color(Color::Accent)
2281                    .size(IconSize::Small);
2282                icon.with_animation(
2283                    "arrow-circle",
2284                    Animation::new(Duration::from_secs(2)).repeat(),
2285                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2286                )
2287                .into_any_element()
2288            }
2289            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2290            ToolUseStatus::Error(_) => {
2291                let icon = Icon::new(IconName::Close)
2292                    .color(Color::Error)
2293                    .size(IconSize::Small);
2294                icon.into_any_element()
2295            }
2296        });
2297
2298        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2299        let results_content_container = || v_flex().p_2().gap_0p5();
2300
2301        let results_content = v_flex()
2302            .gap_1()
2303            .child(
2304                results_content_container()
2305                    .child(
2306                        Label::new("Input")
2307                            .size(LabelSize::XSmall)
2308                            .color(Color::Muted)
2309                            .buffer_font(cx),
2310                    )
2311                    .child(
2312                        div()
2313                            .w_full()
2314                            .text_ui_sm(cx)
2315                            .children(rendered_tool_use.as_ref().map(|rendered| {
2316                                MarkdownElement::new(
2317                                    rendered.input.clone(),
2318                                    tool_use_markdown_style(window, cx),
2319                                )
2320                                .on_url_click({
2321                                    let workspace = self.workspace.clone();
2322                                    move |text, window, cx| {
2323                                        open_markdown_link(text, workspace.clone(), window, cx);
2324                                    }
2325                                })
2326                            })),
2327                    ),
2328            )
2329            .map(|container| match tool_use.status {
2330                ToolUseStatus::Finished(_) => container.child(
2331                    results_content_container()
2332                        .border_t_1()
2333                        .border_color(self.tool_card_border_color(cx))
2334                        .child(
2335                            Label::new("Result")
2336                                .size(LabelSize::XSmall)
2337                                .color(Color::Muted)
2338                                .buffer_font(cx),
2339                        )
2340                        .child(div().w_full().text_ui_sm(cx).children(
2341                            rendered_tool_use.as_ref().map(|rendered| {
2342                                MarkdownElement::new(
2343                                    rendered.output.clone(),
2344                                    tool_use_markdown_style(window, cx),
2345                                )
2346                                .on_url_click({
2347                                    let workspace = self.workspace.clone();
2348                                    move |text, window, cx| {
2349                                        open_markdown_link(text, workspace.clone(), window, cx);
2350                                    }
2351                                })
2352                            }),
2353                        )),
2354                ),
2355                ToolUseStatus::Running => container.child(
2356                    results_content_container().child(
2357                        h_flex()
2358                            .gap_1()
2359                            .pb_1()
2360                            .border_t_1()
2361                            .border_color(self.tool_card_border_color(cx))
2362                            .child(
2363                                Icon::new(IconName::ArrowCircle)
2364                                    .size(IconSize::Small)
2365                                    .color(Color::Accent)
2366                                    .with_animation(
2367                                        "arrow-circle",
2368                                        Animation::new(Duration::from_secs(2)).repeat(),
2369                                        |icon, delta| {
2370                                            icon.transform(Transformation::rotate(percentage(
2371                                                delta,
2372                                            )))
2373                                        },
2374                                    ),
2375                            )
2376                            .child(
2377                                Label::new("Running…")
2378                                    .size(LabelSize::XSmall)
2379                                    .color(Color::Muted)
2380                                    .buffer_font(cx),
2381                            ),
2382                    ),
2383                ),
2384                ToolUseStatus::Error(_) => container.child(
2385                    results_content_container()
2386                        .border_t_1()
2387                        .border_color(self.tool_card_border_color(cx))
2388                        .child(
2389                            Label::new("Error")
2390                                .size(LabelSize::XSmall)
2391                                .color(Color::Muted)
2392                                .buffer_font(cx),
2393                        )
2394                        .child(
2395                            div()
2396                                .text_ui_sm(cx)
2397                                .children(rendered_tool_use.as_ref().map(|rendered| {
2398                                    MarkdownElement::new(
2399                                        rendered.output.clone(),
2400                                        tool_use_markdown_style(window, cx),
2401                                    )
2402                                    .on_url_click({
2403                                        let workspace = self.workspace.clone();
2404                                        move |text, window, cx| {
2405                                            open_markdown_link(text, workspace.clone(), window, cx);
2406                                        }
2407                                    })
2408                                })),
2409                        ),
2410                ),
2411                ToolUseStatus::Pending => container,
2412                ToolUseStatus::NeedsConfirmation => container.child(
2413                    results_content_container()
2414                        .border_t_1()
2415                        .border_color(self.tool_card_border_color(cx))
2416                        .child(
2417                            Label::new("Asking Permission")
2418                                .size(LabelSize::Small)
2419                                .color(Color::Muted)
2420                                .buffer_font(cx),
2421                        ),
2422                ),
2423            });
2424
2425        let gradient_overlay = |color: Hsla| {
2426            div()
2427                .h_full()
2428                .absolute()
2429                .w_12()
2430                .bottom_0()
2431                .map(|element| {
2432                    if is_status_finished {
2433                        element.right_6()
2434                    } else {
2435                        element.right(px(44.))
2436                    }
2437                })
2438                .bg(linear_gradient(
2439                    90.,
2440                    linear_color_stop(color, 1.),
2441                    linear_color_stop(color.opacity(0.2), 0.),
2442                ))
2443        };
2444
2445        div().map(|element| {
2446            if !edit_tools {
2447                element.child(
2448                    v_flex()
2449                        .my_2()
2450                        .child(
2451                            h_flex()
2452                                .group("disclosure-header")
2453                                .relative()
2454                                .gap_1p5()
2455                                .justify_between()
2456                                .opacity(0.8)
2457                                .hover(|style| style.opacity(1.))
2458                                .when(!is_status_finished, |this| this.pr_2())
2459                                .child(
2460                                    h_flex()
2461                                        .id("tool-label-container")
2462                                        .gap_1p5()
2463                                        .max_w_full()
2464                                        .overflow_x_scroll()
2465                                        .child(
2466                                            Icon::new(tool_use.icon)
2467                                                .size(IconSize::XSmall)
2468                                                .color(Color::Muted),
2469                                        )
2470                                        .child(
2471                                            h_flex().pr_8().text_ui_sm(cx).children(
2472                                                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| {
2473                                                    open_markdown_link(text, workspace.clone(), window, cx);
2474                                                }}))
2475                                            ),
2476                                        ),
2477                                )
2478                                .child(
2479                                    h_flex()
2480                                        .gap_1()
2481                                        .child(
2482                                            div().visible_on_hover("disclosure-header").child(
2483                                                Disclosure::new("tool-use-disclosure", is_open)
2484                                                    .opened_icon(IconName::ChevronUp)
2485                                                    .closed_icon(IconName::ChevronDown)
2486                                                    .on_click(cx.listener({
2487                                                        let tool_use_id = tool_use.id.clone();
2488                                                        move |this, _event, _window, _cx| {
2489                                                            let is_open = this
2490                                                                .expanded_tool_uses
2491                                                                .entry(tool_use_id.clone())
2492                                                                .or_insert(false);
2493
2494                                                            *is_open = !*is_open;
2495                                                        }
2496                                                    })),
2497                                            ),
2498                                        )
2499                                        .child(status_icons),
2500                                )
2501                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2502                        )
2503                        .map(|parent| {
2504                            if !is_open {
2505                                return parent;
2506                            }
2507
2508                            parent.child(
2509                                v_flex()
2510                                    .mt_1()
2511                                    .border_1()
2512                                    .border_color(self.tool_card_border_color(cx))
2513                                    .bg(cx.theme().colors().editor_background)
2514                                    .rounded_lg()
2515                                    .child(results_content),
2516                            )
2517                        }),
2518                )
2519            } else {
2520                v_flex()
2521                    .my_3()
2522                    .rounded_lg()
2523                    .border_1()
2524                    .border_color(self.tool_card_border_color(cx))
2525                    .overflow_hidden()
2526                    .child(
2527                        h_flex()
2528                            .group("disclosure-header")
2529                            .relative()
2530                            .justify_between()
2531                            .py_1()
2532                            .map(|element| {
2533                                if is_status_finished {
2534                                    element.pl_2().pr_0p5()
2535                                } else {
2536                                    element.px_2()
2537                                }
2538                            })
2539                            .bg(self.tool_card_header_bg(cx))
2540                            .map(|element| {
2541                                if is_open {
2542                                    element.border_b_1().rounded_t_md()
2543                                } else if needs_confirmation {
2544                                    element.rounded_t_md()
2545                                } else {
2546                                    element.rounded_md()
2547                                }
2548                            })
2549                            .border_color(self.tool_card_border_color(cx))
2550                            .child(
2551                                h_flex()
2552                                    .id("tool-label-container")
2553                                    .gap_1p5()
2554                                    .max_w_full()
2555                                    .overflow_x_scroll()
2556                                    .child(
2557                                        Icon::new(tool_use.icon)
2558                                            .size(IconSize::XSmall)
2559                                            .color(Color::Muted),
2560                                    )
2561                                    .child(
2562                                        h_flex().pr_8().text_ui_sm(cx).children(
2563                                            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| {
2564                                                open_markdown_link(text, workspace.clone(), window, cx);
2565                                            }}))
2566                                        ),
2567                                    ),
2568                            )
2569                            .child(
2570                                h_flex()
2571                                    .gap_1()
2572                                    .child(
2573                                        div().visible_on_hover("disclosure-header").child(
2574                                            Disclosure::new("tool-use-disclosure", is_open)
2575                                                .opened_icon(IconName::ChevronUp)
2576                                                .closed_icon(IconName::ChevronDown)
2577                                                .on_click(cx.listener({
2578                                                    let tool_use_id = tool_use.id.clone();
2579                                                    move |this, _event, _window, _cx| {
2580                                                        let is_open = this
2581                                                            .expanded_tool_uses
2582                                                            .entry(tool_use_id.clone())
2583                                                            .or_insert(false);
2584
2585                                                        *is_open = !*is_open;
2586                                                    }
2587                                                })),
2588                                        ),
2589                                    )
2590                                    .child(status_icons),
2591                            )
2592                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2593                    )
2594                    .map(|parent| {
2595                        if !is_open {
2596                            return parent;
2597                        }
2598
2599                        parent.child(
2600                            v_flex()
2601                                .bg(cx.theme().colors().editor_background)
2602                                .map(|element| {
2603                                    if  needs_confirmation {
2604                                        element.rounded_none()
2605                                    } else {
2606                                        element.rounded_b_lg()
2607                                    }
2608                                })
2609                                .child(results_content),
2610                        )
2611                    })
2612                    .when(needs_confirmation, |this| {
2613                        this.child(
2614                            h_flex()
2615                                .py_1()
2616                                .pl_2()
2617                                .pr_1()
2618                                .gap_1()
2619                                .justify_between()
2620                                .bg(cx.theme().colors().editor_background)
2621                                .border_t_1()
2622                                .border_color(self.tool_card_border_color(cx))
2623                                .rounded_b_lg()
2624                                .child(
2625                                    Label::new("Waiting for Confirmation…")
2626                                        .color(Color::Muted)
2627                                        .size(LabelSize::Small)
2628                                        .with_animation(
2629                                            "generating-label",
2630                                            Animation::new(Duration::from_secs(1)).repeat(),
2631                                            |mut label, delta| {
2632                                                let text = match delta {
2633                                                    d if d < 0.25 => "Waiting for Confirmation",
2634                                                    d if d < 0.5 => "Waiting for Confirmation.",
2635                                                    d if d < 0.75 => "Waiting for Confirmation..",
2636                                                    _ => "Waiting for Confirmation...",
2637                                                };
2638                                                label.set_text(text);
2639                                                label
2640                                            },
2641                                        )
2642                                        .with_animation(
2643                                            "pulsating-label",
2644                                            Animation::new(Duration::from_secs(2))
2645                                                .repeat()
2646                                                .with_easing(pulsating_between(0.6, 1.)),
2647                                            |label, delta| label.map_element(|label| label.alpha(delta)),
2648                                        ),
2649                                )
2650                                .child(
2651                                    h_flex()
2652                                        .gap_0p5()
2653                                        .child({
2654                                            let tool_id = tool_use.id.clone();
2655                                            Button::new(
2656                                                "always-allow-tool-action",
2657                                                "Always Allow",
2658                                            )
2659                                            .label_size(LabelSize::Small)
2660                                            .icon(IconName::CheckDouble)
2661                                            .icon_position(IconPosition::Start)
2662                                            .icon_size(IconSize::Small)
2663                                            .icon_color(Color::Success)
2664                                            .tooltip(move |window, cx|  {
2665                                                Tooltip::with_meta(
2666                                                    "Never ask for permission",
2667                                                    None,
2668                                                    "Restore the original behavior in your Agent Panel settings",
2669                                                    window,
2670                                                    cx,
2671                                                )
2672                                            })
2673                                            .on_click(cx.listener(
2674                                                move |this, event, window, cx| {
2675                                                    if let Some(fs) = fs.clone() {
2676                                                        update_settings_file::<AssistantSettings>(
2677                                                            fs.clone(),
2678                                                            cx,
2679                                                            |settings, _| {
2680                                                                settings.set_always_allow_tool_actions(true);
2681                                                            },
2682                                                        );
2683                                                    }
2684                                                    this.handle_allow_tool(
2685                                                        tool_id.clone(),
2686                                                        event,
2687                                                        window,
2688                                                        cx,
2689                                                    )
2690                                                },
2691                                            ))
2692                                        })
2693                                        .child(ui::Divider::vertical())
2694                                        .child({
2695                                            let tool_id = tool_use.id.clone();
2696                                            Button::new("allow-tool-action", "Allow")
2697                                                .label_size(LabelSize::Small)
2698                                                .icon(IconName::Check)
2699                                                .icon_position(IconPosition::Start)
2700                                                .icon_size(IconSize::Small)
2701                                                .icon_color(Color::Success)
2702                                                .on_click(cx.listener(
2703                                                    move |this, event, window, cx| {
2704                                                        this.handle_allow_tool(
2705                                                            tool_id.clone(),
2706                                                            event,
2707                                                            window,
2708                                                            cx,
2709                                                        )
2710                                                    },
2711                                                ))
2712                                        })
2713                                        .child({
2714                                            let tool_id = tool_use.id.clone();
2715                                            let tool_name: Arc<str> = tool_use.name.into();
2716                                            Button::new("deny-tool", "Deny")
2717                                                .label_size(LabelSize::Small)
2718                                                .icon(IconName::Close)
2719                                                .icon_position(IconPosition::Start)
2720                                                .icon_size(IconSize::Small)
2721                                                .icon_color(Color::Error)
2722                                                .on_click(cx.listener(
2723                                                    move |this, event, window, cx| {
2724                                                        this.handle_deny_tool(
2725                                                            tool_id.clone(),
2726                                                            tool_name.clone(),
2727                                                            event,
2728                                                            window,
2729                                                            cx,
2730                                                        )
2731                                                    },
2732                                                ))
2733                                        }),
2734                                ),
2735                        )
2736                    })
2737            }
2738        })
2739    }
2740
2741    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
2742        let project_context = self.thread.read(cx).project_context();
2743        let project_context = project_context.borrow();
2744        let Some(project_context) = project_context.as_ref() else {
2745            return div().into_any();
2746        };
2747
2748        let rules_files = project_context
2749            .worktrees
2750            .iter()
2751            .filter_map(|worktree| worktree.rules_file.as_ref())
2752            .collect::<Vec<_>>();
2753
2754        let label_text = match rules_files.as_slice() {
2755            &[] => return div().into_any(),
2756            &[rules_file] => {
2757                format!("Using {:?} file", rules_file.path_in_worktree)
2758            }
2759            rules_files => {
2760                format!("Using {} rules files", rules_files.len())
2761            }
2762        };
2763
2764        div()
2765            .pt_2()
2766            .px_2p5()
2767            .child(
2768                h_flex()
2769                    .w_full()
2770                    .gap_0p5()
2771                    .child(
2772                        h_flex()
2773                            .gap_1p5()
2774                            .child(
2775                                Icon::new(IconName::File)
2776                                    .size(IconSize::XSmall)
2777                                    .color(Color::Disabled),
2778                            )
2779                            .child(
2780                                Label::new(label_text)
2781                                    .size(LabelSize::XSmall)
2782                                    .color(Color::Muted)
2783                                    .buffer_font(cx),
2784                            ),
2785                    )
2786                    .child(
2787                        IconButton::new("open-rule", IconName::ArrowUpRightAlt)
2788                            .shape(ui::IconButtonShape::Square)
2789                            .icon_size(IconSize::XSmall)
2790                            .icon_color(Color::Ignored)
2791                            .on_click(cx.listener(Self::handle_open_rules))
2792                            .tooltip(Tooltip::text("View Rules")),
2793                    ),
2794            )
2795            .into_any()
2796    }
2797
2798    fn handle_allow_tool(
2799        &mut self,
2800        tool_use_id: LanguageModelToolUseId,
2801        _: &ClickEvent,
2802        _window: &mut Window,
2803        cx: &mut Context<Self>,
2804    ) {
2805        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
2806            .thread
2807            .read(cx)
2808            .pending_tool(&tool_use_id)
2809            .map(|tool_use| tool_use.status.clone())
2810        {
2811            self.thread.update(cx, |thread, cx| {
2812                thread.run_tool(
2813                    c.tool_use_id.clone(),
2814                    c.ui_text.clone(),
2815                    c.input.clone(),
2816                    &c.messages,
2817                    c.tool.clone(),
2818                    cx,
2819                );
2820            });
2821        }
2822    }
2823
2824    fn handle_deny_tool(
2825        &mut self,
2826        tool_use_id: LanguageModelToolUseId,
2827        tool_name: Arc<str>,
2828        _: &ClickEvent,
2829        _window: &mut Window,
2830        cx: &mut Context<Self>,
2831    ) {
2832        self.thread.update(cx, |thread, cx| {
2833            thread.deny_tool_use(tool_use_id, tool_name, cx);
2834        });
2835    }
2836
2837    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
2838        let project_context = self.thread.read(cx).project_context();
2839        let project_context = project_context.borrow();
2840        let Some(project_context) = project_context.as_ref() else {
2841            return;
2842        };
2843
2844        let abs_paths = project_context
2845            .worktrees
2846            .iter()
2847            .flat_map(|worktree| worktree.rules_file.as_ref())
2848            .map(|rules_file| rules_file.abs_path.to_path_buf())
2849            .collect::<Vec<_>>();
2850
2851        if let Ok(task) = self.workspace.update(cx, move |workspace, cx| {
2852            // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
2853            // files clear. For example, if rules file 1 is already open but rules file 2 is not,
2854            // this would open and focus rules file 2 in a tab that is not next to rules file 1.
2855            workspace.open_paths(abs_paths, OpenOptions::default(), None, window, cx)
2856        }) {
2857            task.detach();
2858        }
2859    }
2860
2861    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
2862        for window in self.notifications.drain(..) {
2863            window
2864                .update(cx, |_, window, _| {
2865                    window.remove_window();
2866                })
2867                .ok();
2868
2869            self.notification_subscriptions.remove(&window);
2870        }
2871    }
2872
2873    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
2874        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
2875            return None;
2876        }
2877
2878        Some(
2879            div()
2880                .occlude()
2881                .id("active-thread-scrollbar")
2882                .on_mouse_move(cx.listener(|_, _, _, cx| {
2883                    cx.notify();
2884                    cx.stop_propagation()
2885                }))
2886                .on_hover(|_, _, cx| {
2887                    cx.stop_propagation();
2888                })
2889                .on_any_mouse_down(|_, _, cx| {
2890                    cx.stop_propagation();
2891                })
2892                .on_mouse_up(
2893                    MouseButton::Left,
2894                    cx.listener(|_, _, _, cx| {
2895                        cx.stop_propagation();
2896                    }),
2897                )
2898                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
2899                    cx.notify();
2900                }))
2901                .h_full()
2902                .absolute()
2903                .right_1()
2904                .top_1()
2905                .bottom_0()
2906                .w(px(12.))
2907                .cursor_default()
2908                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
2909        )
2910    }
2911
2912    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
2913        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
2914        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
2915            cx.background_executor()
2916                .timer(SCROLLBAR_SHOW_INTERVAL)
2917                .await;
2918            thread
2919                .update(cx, |thread, cx| {
2920                    if !thread.scrollbar_state.is_dragging() {
2921                        thread.show_scrollbar = false;
2922                        cx.notify();
2923                    }
2924                })
2925                .log_err();
2926        }))
2927    }
2928}
2929
2930impl Render for ActiveThread {
2931    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
2932        v_flex()
2933            .size_full()
2934            .relative()
2935            .on_mouse_move(cx.listener(|this, _, _, cx| {
2936                this.show_scrollbar = true;
2937                this.hide_scrollbar_later(cx);
2938                cx.notify();
2939            }))
2940            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
2941                this.show_scrollbar = true;
2942                this.hide_scrollbar_later(cx);
2943                cx.notify();
2944            }))
2945            .on_mouse_up(
2946                MouseButton::Left,
2947                cx.listener(|this, _, _, cx| {
2948                    this.hide_scrollbar_later(cx);
2949                }),
2950            )
2951            .child(list(self.list_state.clone()).flex_grow())
2952            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
2953                this.child(scrollbar)
2954            })
2955    }
2956}
2957
2958pub(crate) fn open_context(
2959    id: ContextId,
2960    context_store: Entity<ContextStore>,
2961    workspace: Entity<Workspace>,
2962    window: &mut Window,
2963    cx: &mut App,
2964) {
2965    let Some(context) = context_store.read(cx).context_for_id(id) else {
2966        return;
2967    };
2968
2969    match context {
2970        AssistantContext::File(file_context) => {
2971            if let Some(project_path) = file_context.context_buffer.buffer.read(cx).project_path(cx)
2972            {
2973                workspace.update(cx, |workspace, cx| {
2974                    workspace
2975                        .open_path(project_path, None, true, window, cx)
2976                        .detach_and_log_err(cx);
2977                });
2978            }
2979        }
2980        AssistantContext::Directory(directory_context) => {
2981            let project_path = directory_context.project_path(cx);
2982            workspace.update(cx, |workspace, cx| {
2983                workspace.project().update(cx, |project, cx| {
2984                    if let Some(entry) = project.entry_for_path(&project_path, cx) {
2985                        cx.emit(project::Event::RevealInProjectPanel(entry.id));
2986                    }
2987                })
2988            })
2989        }
2990        AssistantContext::Symbol(symbol_context) => {
2991            if let Some(project_path) = symbol_context
2992                .context_symbol
2993                .buffer
2994                .read(cx)
2995                .project_path(cx)
2996            {
2997                let snapshot = symbol_context.context_symbol.buffer.read(cx).snapshot();
2998                let target_position = symbol_context
2999                    .context_symbol
3000                    .id
3001                    .range
3002                    .start
3003                    .to_point(&snapshot);
3004
3005                let open_task = workspace.update(cx, |workspace, cx| {
3006                    workspace.open_path(project_path, None, true, window, cx)
3007                });
3008                window
3009                    .spawn(cx, async move |cx| {
3010                        if let Some(active_editor) = open_task
3011                            .await
3012                            .log_err()
3013                            .and_then(|item| item.downcast::<Editor>())
3014                        {
3015                            active_editor
3016                                .downgrade()
3017                                .update_in(cx, |editor, window, cx| {
3018                                    editor.go_to_singleton_buffer_point(
3019                                        target_position,
3020                                        window,
3021                                        cx,
3022                                    );
3023                                })
3024                                .log_err();
3025                        }
3026                    })
3027                    .detach();
3028            }
3029        }
3030        AssistantContext::FetchedUrl(fetched_url_context) => {
3031            cx.open_url(&fetched_url_context.url);
3032        }
3033        AssistantContext::Thread(thread_context) => {
3034            let thread_id = thread_context.thread.read(cx).id().clone();
3035            workspace.update(cx, |workspace, cx| {
3036                if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3037                    panel.update(cx, |panel, cx| {
3038                        panel
3039                            .open_thread(&thread_id, window, cx)
3040                            .detach_and_log_err(cx)
3041                    });
3042                }
3043            })
3044        }
3045    }
3046}