active_thread.rs

   1use crate::context::{AssistantContext, ContextId, RULES_ICON, format_context_as_string};
   2use crate::context_picker::MentionLink;
   3use crate::thread::{
   4    LastRestoreCheckpoint, MessageId, MessageSegment, Thread, ThreadError, ThreadEvent,
   5    ThreadFeedback,
   6};
   7use crate::thread_store::{RulesLoadingError, ThreadStore};
   8use crate::tool_use::{PendingToolUseStatus, ToolUse};
   9use crate::ui::{
  10    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  11};
  12use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  13use anyhow::Context as _;
  14use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  15use assistant_tool::ToolUseStatus;
  16use collections::{HashMap, HashSet};
  17use editor::scroll::Autoscroll;
  18use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  19use gpui::{
  20    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardItem,
  21    DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla, ListAlignment,
  22    ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful, StyleRefinement, Subscription,
  23    Task, TextStyle, TextStyleRefinement, Transformation, UnderlineStyle, WeakEntity, WindowHandle,
  24    linear_color_stop, linear_gradient, list, percentage, pulsating_between,
  25};
  26use language::{Buffer, LanguageRegistry};
  27use language_model::{
  28    LanguageModelRegistry, LanguageModelRequestMessage, LanguageModelToolUseId, RequestUsage, Role,
  29    StopReason,
  30};
  31use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  32use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  33use project::ProjectItem as _;
  34use rope::Point;
  35use settings::{Settings as _, update_settings_file};
  36use std::path::Path;
  37use std::rc::Rc;
  38use std::sync::Arc;
  39use std::time::Duration;
  40use text::ToPoint;
  41use theme::ThemeSettings;
  42use ui::{
  43    Disclosure, IconButton, KeyBinding, Scrollbar, ScrollbarState, TextSize, Tooltip, prelude::*,
  44};
  45use util::ResultExt as _;
  46use workspace::{OpenOptions, Workspace};
  47use zed_actions::assistant::OpenPromptLibrary;
  48
  49use crate::context_store::ContextStore;
  50
  51pub struct ActiveThread {
  52    language_registry: Arc<LanguageRegistry>,
  53    thread_store: Entity<ThreadStore>,
  54    thread: Entity<Thread>,
  55    context_store: Entity<ContextStore>,
  56    workspace: WeakEntity<Workspace>,
  57    save_thread_task: Option<Task<()>>,
  58    messages: Vec<MessageId>,
  59    list_state: ListState,
  60    scrollbar_state: ScrollbarState,
  61    show_scrollbar: bool,
  62    hide_scrollbar_task: Option<Task<()>>,
  63    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  64    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  65    editing_message: Option<(MessageId, EditMessageState)>,
  66    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  67    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  68    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  69    last_error: Option<ThreadError>,
  70    last_usage: Option<RequestUsage>,
  71    notifications: Vec<WindowHandle<AgentNotification>>,
  72    copied_code_block_ids: HashSet<(MessageId, usize)>,
  73    _subscriptions: Vec<Subscription>,
  74    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  75    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  76}
  77
  78struct RenderedMessage {
  79    language_registry: Arc<LanguageRegistry>,
  80    segments: Vec<RenderedMessageSegment>,
  81}
  82
  83#[derive(Clone)]
  84struct RenderedToolUse {
  85    label: Entity<Markdown>,
  86    input: Entity<Markdown>,
  87    output: Entity<Markdown>,
  88}
  89
  90impl RenderedMessage {
  91    fn from_segments(
  92        segments: &[MessageSegment],
  93        language_registry: Arc<LanguageRegistry>,
  94        cx: &mut App,
  95    ) -> Self {
  96        let mut this = Self {
  97            language_registry,
  98            segments: Vec::with_capacity(segments.len()),
  99        };
 100        for segment in segments {
 101            this.push_segment(segment, cx);
 102        }
 103        this
 104    }
 105
 106    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 107        if let Some(RenderedMessageSegment::Thinking {
 108            content,
 109            scroll_handle,
 110        }) = self.segments.last_mut()
 111        {
 112            content.update(cx, |markdown, cx| {
 113                markdown.append(text, cx);
 114            });
 115            scroll_handle.scroll_to_bottom();
 116        } else {
 117            self.segments.push(RenderedMessageSegment::Thinking {
 118                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 119                scroll_handle: ScrollHandle::default(),
 120            });
 121        }
 122    }
 123
 124    fn append_text(&mut self, text: &String, cx: &mut App) {
 125        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 126            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 127        } else {
 128            self.segments
 129                .push(RenderedMessageSegment::Text(parse_markdown(
 130                    SharedString::from(text),
 131                    self.language_registry.clone(),
 132                    cx,
 133                )));
 134        }
 135    }
 136
 137    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 138        match segment {
 139            MessageSegment::Thinking { text, .. } => {
 140                self.segments.push(RenderedMessageSegment::Thinking {
 141                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 142                    scroll_handle: ScrollHandle::default(),
 143                })
 144            }
 145            MessageSegment::Text(text) => {
 146                self.segments
 147                    .push(RenderedMessageSegment::Text(parse_markdown(
 148                        text.into(),
 149                        self.language_registry.clone(),
 150                        cx,
 151                    )))
 152            }
 153            MessageSegment::RedactedThinking(_) => {}
 154        };
 155    }
 156}
 157
 158enum RenderedMessageSegment {
 159    Thinking {
 160        content: Entity<Markdown>,
 161        scroll_handle: ScrollHandle,
 162    },
 163    Text(Entity<Markdown>),
 164}
 165
 166fn parse_markdown(
 167    text: SharedString,
 168    language_registry: Arc<LanguageRegistry>,
 169    cx: &mut App,
 170) -> Entity<Markdown> {
 171    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 172}
 173
 174fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 175    let theme_settings = ThemeSettings::get_global(cx);
 176    let colors = cx.theme().colors();
 177    let ui_font_size = TextSize::Default.rems(cx);
 178    let buffer_font_size = TextSize::Small.rems(cx);
 179    let mut text_style = window.text_style();
 180
 181    text_style.refine(&TextStyleRefinement {
 182        font_family: Some(theme_settings.ui_font.family.clone()),
 183        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 184        font_features: Some(theme_settings.ui_font.features.clone()),
 185        font_size: Some(ui_font_size.into()),
 186        color: Some(cx.theme().colors().text),
 187        ..Default::default()
 188    });
 189
 190    MarkdownStyle {
 191        base_text_style: text_style.clone(),
 192        syntax: cx.theme().syntax().clone(),
 193        selection_background_color: cx.theme().players().local().selection,
 194        code_block_overflow_x_scroll: true,
 195        table_overflow_x_scroll: true,
 196        heading_level_styles: Some(HeadingLevelStyles {
 197            h1: Some(TextStyleRefinement {
 198                font_size: Some(rems(1.15).into()),
 199                ..Default::default()
 200            }),
 201            h2: Some(TextStyleRefinement {
 202                font_size: Some(rems(1.1).into()),
 203                ..Default::default()
 204            }),
 205            h3: Some(TextStyleRefinement {
 206                font_size: Some(rems(1.05).into()),
 207                ..Default::default()
 208            }),
 209            h4: Some(TextStyleRefinement {
 210                font_size: Some(rems(1.).into()),
 211                ..Default::default()
 212            }),
 213            h5: Some(TextStyleRefinement {
 214                font_size: Some(rems(0.95).into()),
 215                ..Default::default()
 216            }),
 217            h6: Some(TextStyleRefinement {
 218                font_size: Some(rems(0.875).into()),
 219                ..Default::default()
 220            }),
 221        }),
 222        code_block: StyleRefinement {
 223            padding: EdgesRefinement {
 224                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 225                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 226                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 227                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 228            },
 229            background: Some(colors.editor_background.into()),
 230            text: Some(TextStyleRefinement {
 231                font_family: Some(theme_settings.buffer_font.family.clone()),
 232                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 233                font_features: Some(theme_settings.buffer_font.features.clone()),
 234                font_size: Some(buffer_font_size.into()),
 235                ..Default::default()
 236            }),
 237            ..Default::default()
 238        },
 239        inline_code: TextStyleRefinement {
 240            font_family: Some(theme_settings.buffer_font.family.clone()),
 241            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 242            font_features: Some(theme_settings.buffer_font.features.clone()),
 243            font_size: Some(buffer_font_size.into()),
 244            background_color: Some(colors.editor_foreground.opacity(0.08)),
 245            ..Default::default()
 246        },
 247        link: TextStyleRefinement {
 248            background_color: Some(colors.editor_foreground.opacity(0.025)),
 249            underline: Some(UnderlineStyle {
 250                color: Some(colors.text_accent.opacity(0.5)),
 251                thickness: px(1.),
 252                ..Default::default()
 253            }),
 254            ..Default::default()
 255        },
 256        link_callback: Some(Rc::new(move |url, cx| {
 257            if MentionLink::is_valid(url) {
 258                let colors = cx.theme().colors();
 259                Some(TextStyleRefinement {
 260                    background_color: Some(colors.element_background),
 261                    ..Default::default()
 262                })
 263            } else {
 264                None
 265            }
 266        })),
 267        ..Default::default()
 268    }
 269}
 270
 271fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 272    let theme_settings = ThemeSettings::get_global(cx);
 273    let colors = cx.theme().colors();
 274    let ui_font_size = TextSize::Default.rems(cx);
 275    let buffer_font_size = TextSize::Small.rems(cx);
 276    let mut text_style = window.text_style();
 277
 278    text_style.refine(&TextStyleRefinement {
 279        font_family: Some(theme_settings.ui_font.family.clone()),
 280        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 281        font_features: Some(theme_settings.ui_font.features.clone()),
 282        font_size: Some(ui_font_size.into()),
 283        color: Some(cx.theme().colors().text),
 284        ..Default::default()
 285    });
 286
 287    MarkdownStyle {
 288        base_text_style: text_style,
 289        syntax: cx.theme().syntax().clone(),
 290        selection_background_color: cx.theme().players().local().selection,
 291        code_block_overflow_x_scroll: true,
 292        code_block: StyleRefinement {
 293            margin: EdgesRefinement::default(),
 294            padding: EdgesRefinement::default(),
 295            background: Some(colors.editor_background.into()),
 296            border_color: None,
 297            border_widths: EdgesRefinement::default(),
 298            text: Some(TextStyleRefinement {
 299                font_family: Some(theme_settings.buffer_font.family.clone()),
 300                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 301                font_features: Some(theme_settings.buffer_font.features.clone()),
 302                font_size: Some(buffer_font_size.into()),
 303                ..Default::default()
 304            }),
 305            ..Default::default()
 306        },
 307        inline_code: TextStyleRefinement {
 308            font_family: Some(theme_settings.buffer_font.family.clone()),
 309            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 310            font_features: Some(theme_settings.buffer_font.features.clone()),
 311            font_size: Some(TextSize::XSmall.rems(cx).into()),
 312            ..Default::default()
 313        },
 314        heading: StyleRefinement {
 315            text: Some(TextStyleRefinement {
 316                font_size: Some(ui_font_size.into()),
 317                ..Default::default()
 318            }),
 319            ..Default::default()
 320        },
 321        ..Default::default()
 322    }
 323}
 324
 325const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 326
 327fn render_markdown_code_block(
 328    message_id: MessageId,
 329    ix: usize,
 330    kind: &CodeBlockKind,
 331    parsed_markdown: &ParsedMarkdown,
 332    metadata: CodeBlockMetadata,
 333    active_thread: Entity<ActiveThread>,
 334    workspace: WeakEntity<Workspace>,
 335    _window: &Window,
 336    cx: &App,
 337) -> Div {
 338    let label = match kind {
 339        CodeBlockKind::Indented => None,
 340        CodeBlockKind::Fenced => Some(
 341            h_flex()
 342                .gap_1()
 343                .child(
 344                    Icon::new(IconName::Code)
 345                        .color(Color::Muted)
 346                        .size(IconSize::XSmall),
 347                )
 348                .child(Label::new("untitled").size(LabelSize::Small))
 349                .into_any_element(),
 350        ),
 351        CodeBlockKind::FencedLang(raw_language_name) => Some(
 352            h_flex()
 353                .gap_1()
 354                .children(
 355                    parsed_markdown
 356                        .languages_by_name
 357                        .get(raw_language_name)
 358                        .and_then(|language| {
 359                            language
 360                                .config()
 361                                .matcher
 362                                .path_suffixes
 363                                .iter()
 364                                .find_map(|extension| {
 365                                    file_icons::FileIcons::get_icon(Path::new(extension), cx)
 366                                })
 367                                .map(Icon::from_path)
 368                                .map(|icon| icon.color(Color::Muted).size(IconSize::Small))
 369                        }),
 370                )
 371                .child(
 372                    Label::new(
 373                        parsed_markdown
 374                            .languages_by_name
 375                            .get(raw_language_name)
 376                            .map(|language| language.name().into())
 377                            .clone()
 378                            .unwrap_or_else(|| raw_language_name.clone()),
 379                    )
 380                    .size(LabelSize::Small),
 381                )
 382                .into_any_element(),
 383        ),
 384        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 385            let content = if let Some(parent) = path_range.path.parent() {
 386                h_flex()
 387                    .ml_1()
 388                    .gap_1()
 389                    .child(
 390                        Label::new(file_name.to_string_lossy().to_string()).size(LabelSize::Small),
 391                    )
 392                    .child(
 393                        Label::new(parent.to_string_lossy().to_string())
 394                            .color(Color::Muted)
 395                            .size(LabelSize::Small),
 396                    )
 397                    .into_any_element()
 398            } else {
 399                Label::new(path_range.path.to_string_lossy().to_string())
 400                    .size(LabelSize::Small)
 401                    .ml_1()
 402                    .into_any_element()
 403            };
 404
 405            h_flex()
 406                .id(("code-block-header-label", ix))
 407                .w_full()
 408                .max_w_full()
 409                .px_1()
 410                .gap_0p5()
 411                .cursor_pointer()
 412                .rounded_sm()
 413                .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 414                .tooltip(Tooltip::text("Jump to File"))
 415                .child(
 416                    h_flex()
 417                        .gap_0p5()
 418                        .children(
 419                            file_icons::FileIcons::get_icon(&path_range.path, cx)
 420                                .map(Icon::from_path)
 421                                .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 422                        )
 423                        .child(content)
 424                        .child(
 425                            Icon::new(IconName::ArrowUpRight)
 426                                .size(IconSize::XSmall)
 427                                .color(Color::Ignored),
 428                        ),
 429                )
 430                .on_click({
 431                    let path_range = path_range.clone();
 432                    move |_, window, cx| {
 433                        workspace
 434                            .update(cx, {
 435                                |workspace, cx| {
 436                                    let Some(project_path) = workspace
 437                                        .project()
 438                                        .read(cx)
 439                                        .find_project_path(&path_range.path, cx)
 440                                    else {
 441                                        return;
 442                                    };
 443                                    let Some(target) = path_range.range.as_ref().map(|range| {
 444                                        Point::new(
 445                                            // Line number is 1-based
 446                                            range.start.line.saturating_sub(1),
 447                                            range.start.col.unwrap_or(0),
 448                                        )
 449                                    }) else {
 450                                        return;
 451                                    };
 452                                    let open_task =
 453                                        workspace.open_path(project_path, None, true, window, cx);
 454                                    window
 455                                        .spawn(cx, async move |cx| {
 456                                            let item = open_task.await?;
 457                                            if let Some(active_editor) = item.downcast::<Editor>() {
 458                                                active_editor
 459                                                    .update_in(cx, |editor, window, cx| {
 460                                                        editor.go_to_singleton_buffer_point(
 461                                                            target, window, cx,
 462                                                        );
 463                                                    })
 464                                                    .ok();
 465                                            }
 466                                            anyhow::Ok(())
 467                                        })
 468                                        .detach_and_log_err(cx);
 469                                }
 470                            })
 471                            .ok();
 472                    }
 473                })
 474                .into_any_element()
 475        }),
 476    };
 477
 478    let codeblock_was_copied = active_thread
 479        .read(cx)
 480        .copied_code_block_ids
 481        .contains(&(message_id, ix));
 482
 483    let is_expanded = active_thread
 484        .read(cx)
 485        .expanded_code_blocks
 486        .get(&(message_id, ix))
 487        .copied()
 488        .unwrap_or(false);
 489
 490    let codeblock_header_bg = cx
 491        .theme()
 492        .colors()
 493        .element_background
 494        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 495
 496    let codeblock_header = h_flex()
 497        .py_1()
 498        .pl_1p5()
 499        .pr_1()
 500        .gap_1()
 501        .justify_between()
 502        .border_b_1()
 503        .border_color(cx.theme().colors().border.opacity(0.6))
 504        .bg(codeblock_header_bg)
 505        .rounded_t_md()
 506        .children(label)
 507        .child(
 508            h_flex()
 509                .gap_1()
 510                .child(
 511                    div().visible_on_hover("codeblock_container").child(
 512                        IconButton::new(
 513                            ("copy-markdown-code", ix),
 514                            if codeblock_was_copied {
 515                                IconName::Check
 516                            } else {
 517                                IconName::Copy
 518                            },
 519                        )
 520                        .icon_color(Color::Muted)
 521                        .shape(ui::IconButtonShape::Square)
 522                        .tooltip(Tooltip::text("Copy Code"))
 523                        .on_click({
 524                            let active_thread = active_thread.clone();
 525                            let parsed_markdown = parsed_markdown.clone();
 526                            let code_block_range = metadata.content_range.clone();
 527                            move |_event, _window, cx| {
 528                                active_thread.update(cx, |this, cx| {
 529                                    this.copied_code_block_ids.insert((message_id, ix));
 530
 531                                    let code = parsed_markdown.source()[code_block_range.clone()]
 532                                        .to_string();
 533                                    cx.write_to_clipboard(ClipboardItem::new_string(code));
 534
 535                                    cx.spawn(async move |this, cx| {
 536                                        cx.background_executor()
 537                                            .timer(Duration::from_secs(2))
 538                                            .await;
 539
 540                                        cx.update(|cx| {
 541                                            this.update(cx, |this, cx| {
 542                                                this.copied_code_block_ids
 543                                                    .remove(&(message_id, ix));
 544                                                cx.notify();
 545                                            })
 546                                        })
 547                                        .ok();
 548                                    })
 549                                    .detach();
 550                                });
 551                            }
 552                        }),
 553                    ),
 554                )
 555                .when(
 556                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 557                    |header| {
 558                        header.child(
 559                            IconButton::new(
 560                                ("expand-collapse-code", ix),
 561                                if is_expanded {
 562                                    IconName::ChevronUp
 563                                } else {
 564                                    IconName::ChevronDown
 565                                },
 566                            )
 567                            .icon_color(Color::Muted)
 568                            .shape(ui::IconButtonShape::Square)
 569                            .tooltip(Tooltip::text(if is_expanded {
 570                                "Collapse Code"
 571                            } else {
 572                                "Expand Code"
 573                            }))
 574                            .on_click({
 575                                let active_thread = active_thread.clone();
 576                                move |_event, _window, cx| {
 577                                    active_thread.update(cx, |this, cx| {
 578                                        let is_expanded = this
 579                                            .expanded_code_blocks
 580                                            .entry((message_id, ix))
 581                                            .or_insert(false);
 582                                        *is_expanded = !*is_expanded;
 583                                        cx.notify();
 584                                    });
 585                                }
 586                            }),
 587                        )
 588                    },
 589                ),
 590        );
 591
 592    v_flex()
 593        .group("codeblock_container")
 594        .my_2()
 595        .overflow_hidden()
 596        .rounded_lg()
 597        .border_1()
 598        .border_color(cx.theme().colors().border.opacity(0.6))
 599        .bg(cx.theme().colors().editor_background)
 600        .child(codeblock_header)
 601        .when(
 602            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 603            |this| {
 604                if is_expanded {
 605                    this.h_full()
 606                } else {
 607                    this.max_h_80()
 608                }
 609            },
 610        )
 611}
 612
 613fn open_markdown_link(
 614    text: SharedString,
 615    workspace: WeakEntity<Workspace>,
 616    window: &mut Window,
 617    cx: &mut App,
 618) {
 619    let Some(workspace) = workspace.upgrade() else {
 620        cx.open_url(&text);
 621        return;
 622    };
 623
 624    match MentionLink::try_parse(&text, &workspace, cx) {
 625        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 626            if entry.is_dir() {
 627                workspace.project().update(cx, |_, cx| {
 628                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 629                })
 630            } else {
 631                workspace
 632                    .open_path(path, None, true, window, cx)
 633                    .detach_and_log_err(cx);
 634            }
 635        }),
 636        Some(MentionLink::Symbol(path, symbol_name)) => {
 637            let open_task = workspace.update(cx, |workspace, cx| {
 638                workspace.open_path(path, None, true, window, cx)
 639            });
 640            window
 641                .spawn(cx, async move |cx| {
 642                    let active_editor = open_task
 643                        .await?
 644                        .downcast::<Editor>()
 645                        .context("Item is not an editor")?;
 646                    active_editor.update_in(cx, |editor, window, cx| {
 647                        let symbol_range = editor
 648                            .buffer()
 649                            .read(cx)
 650                            .snapshot(cx)
 651                            .outline(None)
 652                            .and_then(|outline| {
 653                                outline
 654                                    .find_most_similar(&symbol_name)
 655                                    .map(|(_, item)| item.range.clone())
 656                            })
 657                            .context("Could not find matching symbol")?;
 658
 659                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 660                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 661                        });
 662                        anyhow::Ok(())
 663                    })
 664                })
 665                .detach_and_log_err(cx);
 666        }
 667        Some(MentionLink::Selection(path, line_range)) => {
 668            let open_task = workspace.update(cx, |workspace, cx| {
 669                workspace.open_path(path, None, true, window, cx)
 670            });
 671            window
 672                .spawn(cx, async move |cx| {
 673                    let active_editor = open_task
 674                        .await?
 675                        .downcast::<Editor>()
 676                        .context("Item is not an editor")?;
 677                    active_editor.update_in(cx, |editor, window, cx| {
 678                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 679                            s.select_ranges([Point::new(line_range.start as u32, 0)
 680                                ..Point::new(line_range.start as u32, 0)])
 681                        });
 682                        anyhow::Ok(())
 683                    })
 684                })
 685                .detach_and_log_err(cx);
 686        }
 687        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 688            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 689                panel.update(cx, |panel, cx| {
 690                    panel
 691                        .open_thread(&thread_id, window, cx)
 692                        .detach_and_log_err(cx)
 693                });
 694            }
 695        }),
 696        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 697        Some(MentionLink::Rules(prompt_id)) => window.dispatch_action(
 698            Box::new(OpenPromptLibrary {
 699                prompt_to_select: Some(prompt_id.0),
 700            }),
 701            cx,
 702        ),
 703        None => cx.open_url(&text),
 704    }
 705}
 706
 707struct EditMessageState {
 708    editor: Entity<Editor>,
 709    last_estimated_token_count: Option<usize>,
 710    _subscription: Subscription,
 711    _update_token_count_task: Option<Task<anyhow::Result<()>>>,
 712}
 713
 714impl ActiveThread {
 715    pub fn new(
 716        thread: Entity<Thread>,
 717        thread_store: Entity<ThreadStore>,
 718        language_registry: Arc<LanguageRegistry>,
 719        context_store: Entity<ContextStore>,
 720        workspace: WeakEntity<Workspace>,
 721        window: &mut Window,
 722        cx: &mut Context<Self>,
 723    ) -> Self {
 724        let subscriptions = vec![
 725            cx.observe(&thread, |_, _, cx| cx.notify()),
 726            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 727            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 728        ];
 729
 730        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 731            let this = cx.entity().downgrade();
 732            move |ix, window: &mut Window, cx: &mut App| {
 733                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 734                    .unwrap()
 735            }
 736        });
 737
 738        let mut this = Self {
 739            language_registry,
 740            thread_store,
 741            thread: thread.clone(),
 742            context_store,
 743            workspace,
 744            save_thread_task: None,
 745            messages: Vec::new(),
 746            rendered_messages_by_id: HashMap::default(),
 747            rendered_tool_uses: HashMap::default(),
 748            expanded_tool_uses: HashMap::default(),
 749            expanded_thinking_segments: HashMap::default(),
 750            expanded_code_blocks: HashMap::default(),
 751            list_state: list_state.clone(),
 752            scrollbar_state: ScrollbarState::new(list_state),
 753            show_scrollbar: false,
 754            hide_scrollbar_task: None,
 755            editing_message: None,
 756            last_error: None,
 757            last_usage: None,
 758            copied_code_block_ids: HashSet::default(),
 759            notifications: Vec::new(),
 760            _subscriptions: subscriptions,
 761            notification_subscriptions: HashMap::default(),
 762            open_feedback_editors: HashMap::default(),
 763        };
 764
 765        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 766            this.push_message(&message.id, &message.segments, window, cx);
 767
 768            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 769                this.render_tool_use_markdown(
 770                    tool_use.id.clone(),
 771                    tool_use.ui_text.clone(),
 772                    &tool_use.input,
 773                    tool_use.status.text(),
 774                    cx,
 775                );
 776            }
 777        }
 778
 779        this
 780    }
 781
 782    pub fn context_store(&self) -> &Entity<ContextStore> {
 783        &self.context_store
 784    }
 785
 786    pub fn thread(&self) -> &Entity<Thread> {
 787        &self.thread
 788    }
 789
 790    pub fn is_empty(&self) -> bool {
 791        self.messages.is_empty()
 792    }
 793
 794    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 795        self.thread.read(cx).summary()
 796    }
 797
 798    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 799        self.thread.read(cx).summary_or_default()
 800    }
 801
 802    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 803        self.last_error.take();
 804        self.thread.update(cx, |thread, cx| {
 805            thread.cancel_last_completion(Some(window.window_handle()), cx)
 806        })
 807    }
 808
 809    pub fn last_error(&self) -> Option<ThreadError> {
 810        self.last_error.clone()
 811    }
 812
 813    pub fn clear_last_error(&mut self) {
 814        self.last_error.take();
 815    }
 816
 817    pub fn last_usage(&self) -> Option<RequestUsage> {
 818        self.last_usage
 819    }
 820
 821    /// Returns the editing message id and the estimated token count in the content
 822    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 823        self.editing_message
 824            .as_ref()
 825            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 826    }
 827
 828    fn push_message(
 829        &mut self,
 830        id: &MessageId,
 831        segments: &[MessageSegment],
 832        _window: &mut Window,
 833        cx: &mut Context<Self>,
 834    ) {
 835        let old_len = self.messages.len();
 836        self.messages.push(*id);
 837        self.list_state.splice(old_len..old_len, 1);
 838
 839        let rendered_message =
 840            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 841        self.rendered_messages_by_id.insert(*id, rendered_message);
 842    }
 843
 844    fn edited_message(
 845        &mut self,
 846        id: &MessageId,
 847        segments: &[MessageSegment],
 848        _window: &mut Window,
 849        cx: &mut Context<Self>,
 850    ) {
 851        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 852            return;
 853        };
 854        self.list_state.splice(index..index + 1, 1);
 855        let rendered_message =
 856            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 857        self.rendered_messages_by_id.insert(*id, rendered_message);
 858    }
 859
 860    fn deleted_message(&mut self, id: &MessageId) {
 861        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 862            return;
 863        };
 864        self.messages.remove(index);
 865        self.list_state.splice(index..index + 1, 0);
 866        self.rendered_messages_by_id.remove(id);
 867    }
 868
 869    fn render_tool_use_markdown(
 870        &mut self,
 871        tool_use_id: LanguageModelToolUseId,
 872        tool_label: impl Into<SharedString>,
 873        tool_input: &serde_json::Value,
 874        tool_output: SharedString,
 875        cx: &mut Context<Self>,
 876    ) {
 877        let rendered = self
 878            .rendered_tool_uses
 879            .entry(tool_use_id.clone())
 880            .or_insert_with(|| RenderedToolUse {
 881                label: cx.new(|cx| {
 882                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 883                }),
 884                input: cx.new(|cx| {
 885                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 886                }),
 887                output: cx.new(|cx| {
 888                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 889                }),
 890            });
 891
 892        rendered.label.update(cx, |this, cx| {
 893            this.replace(tool_label, cx);
 894        });
 895        rendered.input.update(cx, |this, cx| {
 896            let input = format!(
 897                "```json\n{}\n```",
 898                serde_json::to_string_pretty(tool_input).unwrap_or_default()
 899            );
 900            this.replace(input, cx);
 901        });
 902        rendered.output.update(cx, |this, cx| {
 903            this.replace(tool_output, cx);
 904        });
 905    }
 906
 907    fn handle_thread_event(
 908        &mut self,
 909        _thread: &Entity<Thread>,
 910        event: &ThreadEvent,
 911        window: &mut Window,
 912        cx: &mut Context<Self>,
 913    ) {
 914        match event {
 915            ThreadEvent::ShowError(error) => {
 916                self.last_error = Some(error.clone());
 917            }
 918            ThreadEvent::UsageUpdated(usage) => {
 919                self.last_usage = Some(*usage);
 920            }
 921            ThreadEvent::StreamedCompletion
 922            | ThreadEvent::SummaryGenerated
 923            | ThreadEvent::SummaryChanged => {
 924                self.save_thread(cx);
 925            }
 926            ThreadEvent::Stopped(reason) => match reason {
 927                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 928                    let thread = self.thread.read(cx);
 929                    self.show_notification(
 930                        if thread.used_tools_since_last_user_message() {
 931                            "Finished running tools"
 932                        } else {
 933                            "New message"
 934                        },
 935                        IconName::ZedAssistant,
 936                        window,
 937                        cx,
 938                    );
 939                }
 940                _ => {}
 941            },
 942            ThreadEvent::ToolConfirmationNeeded => {
 943                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 944            }
 945            ThreadEvent::StreamedAssistantText(message_id, text) => {
 946                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 947                    rendered_message.append_text(text, cx);
 948                }
 949            }
 950            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 951                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 952                    rendered_message.append_thinking(text, cx);
 953                }
 954            }
 955            ThreadEvent::MessageAdded(message_id) => {
 956                if let Some(message_segments) = self
 957                    .thread
 958                    .read(cx)
 959                    .message(*message_id)
 960                    .map(|message| message.segments.clone())
 961                {
 962                    self.push_message(message_id, &message_segments, window, cx);
 963                }
 964
 965                self.save_thread(cx);
 966                cx.notify();
 967            }
 968            ThreadEvent::MessageEdited(message_id) => {
 969                if let Some(message_segments) = self
 970                    .thread
 971                    .read(cx)
 972                    .message(*message_id)
 973                    .map(|message| message.segments.clone())
 974                {
 975                    self.edited_message(message_id, &message_segments, window, cx);
 976                }
 977
 978                self.save_thread(cx);
 979                cx.notify();
 980            }
 981            ThreadEvent::MessageDeleted(message_id) => {
 982                self.deleted_message(message_id);
 983                self.save_thread(cx);
 984                cx.notify();
 985            }
 986            ThreadEvent::UsePendingTools { tool_uses } => {
 987                for tool_use in tool_uses {
 988                    self.render_tool_use_markdown(
 989                        tool_use.id.clone(),
 990                        tool_use.ui_text.clone(),
 991                        &tool_use.input,
 992                        "".into(),
 993                        cx,
 994                    );
 995                }
 996            }
 997            ThreadEvent::StreamedToolUse {
 998                tool_use_id,
 999                ui_text,
1000                input,
1001            } => {
1002                self.render_tool_use_markdown(
1003                    tool_use_id.clone(),
1004                    ui_text.clone(),
1005                    input,
1006                    "".into(),
1007                    cx,
1008                );
1009            }
1010            ThreadEvent::ToolFinished {
1011                pending_tool_use, ..
1012            } => {
1013                if let Some(tool_use) = pending_tool_use {
1014                    self.render_tool_use_markdown(
1015                        tool_use.id.clone(),
1016                        tool_use.ui_text.clone(),
1017                        &tool_use.input,
1018                        self.thread
1019                            .read(cx)
1020                            .output_for_tool(&tool_use.id)
1021                            .map(|output| output.clone().into())
1022                            .unwrap_or("".into()),
1023                        cx,
1024                    );
1025                }
1026            }
1027            ThreadEvent::CheckpointChanged => cx.notify(),
1028            ThreadEvent::ReceivedTextChunk => {}
1029        }
1030    }
1031
1032    fn handle_rules_loading_error(
1033        &mut self,
1034        _thread_store: Entity<ThreadStore>,
1035        error: &RulesLoadingError,
1036        cx: &mut Context<Self>,
1037    ) {
1038        self.last_error = Some(ThreadError::Message {
1039            header: "Error loading rules file".into(),
1040            message: error.message.clone(),
1041        });
1042        cx.notify();
1043    }
1044
1045    fn show_notification(
1046        &mut self,
1047        caption: impl Into<SharedString>,
1048        icon: IconName,
1049        window: &mut Window,
1050        cx: &mut Context<ActiveThread>,
1051    ) {
1052        if window.is_window_active() || !self.notifications.is_empty() {
1053            return;
1054        }
1055
1056        let title = self
1057            .thread
1058            .read(cx)
1059            .summary()
1060            .unwrap_or("Agent Panel".into());
1061
1062        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1063            NotifyWhenAgentWaiting::PrimaryScreen => {
1064                if let Some(primary) = cx.primary_display() {
1065                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1066                }
1067            }
1068            NotifyWhenAgentWaiting::AllScreens => {
1069                let caption = caption.into();
1070                for screen in cx.displays() {
1071                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1072                }
1073            }
1074            NotifyWhenAgentWaiting::Never => {
1075                // Don't show anything
1076            }
1077        }
1078    }
1079
1080    fn pop_up(
1081        &mut self,
1082        icon: IconName,
1083        caption: SharedString,
1084        title: SharedString,
1085        window: &mut Window,
1086        screen: Rc<dyn PlatformDisplay>,
1087        cx: &mut Context<'_, ActiveThread>,
1088    ) {
1089        let options = AgentNotification::window_options(screen, cx);
1090
1091        let project_name = self.workspace.upgrade().and_then(|workspace| {
1092            workspace
1093                .read(cx)
1094                .project()
1095                .read(cx)
1096                .visible_worktrees(cx)
1097                .next()
1098                .map(|worktree| worktree.read(cx).root_name().to_string())
1099        });
1100
1101        if let Some(screen_window) = cx
1102            .open_window(options, |_, cx| {
1103                cx.new(|_| {
1104                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1105                })
1106            })
1107            .log_err()
1108        {
1109            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1110                self.notification_subscriptions
1111                    .entry(screen_window)
1112                    .or_insert_with(Vec::new)
1113                    .push(cx.subscribe_in(&pop_up, window, {
1114                        |this, _, event, window, cx| match event {
1115                            AgentNotificationEvent::Accepted => {
1116                                let handle = window.window_handle();
1117                                cx.activate(true);
1118
1119                                let workspace_handle = this.workspace.clone();
1120
1121                                // If there are multiple Zed windows, activate the correct one.
1122                                cx.defer(move |cx| {
1123                                    handle
1124                                        .update(cx, |_view, window, _cx| {
1125                                            window.activate_window();
1126
1127                                            if let Some(workspace) = workspace_handle.upgrade() {
1128                                                workspace.update(_cx, |workspace, cx| {
1129                                                    workspace
1130                                                        .focus_panel::<AssistantPanel>(window, cx);
1131                                                });
1132                                            }
1133                                        })
1134                                        .log_err();
1135                                });
1136
1137                                this.dismiss_notifications(cx);
1138                            }
1139                            AgentNotificationEvent::Dismissed => {
1140                                this.dismiss_notifications(cx);
1141                            }
1142                        }
1143                    }));
1144
1145                self.notifications.push(screen_window);
1146
1147                // If the user manually refocuses the original window, dismiss the popup.
1148                self.notification_subscriptions
1149                    .entry(screen_window)
1150                    .or_insert_with(Vec::new)
1151                    .push({
1152                        let pop_up_weak = pop_up.downgrade();
1153
1154                        cx.observe_window_activation(window, move |_, window, cx| {
1155                            if window.is_window_active() {
1156                                if let Some(pop_up) = pop_up_weak.upgrade() {
1157                                    pop_up.update(cx, |_, cx| {
1158                                        cx.emit(AgentNotificationEvent::Dismissed);
1159                                    });
1160                                }
1161                            }
1162                        })
1163                    });
1164            }
1165        }
1166    }
1167
1168    /// Spawns a task to save the active thread.
1169    ///
1170    /// Only one task to save the thread will be in flight at a time.
1171    fn save_thread(&mut self, cx: &mut Context<Self>) {
1172        let thread = self.thread.clone();
1173        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1174            let task = this
1175                .update(cx, |this, cx| {
1176                    this.thread_store
1177                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1178                })
1179                .ok();
1180
1181            if let Some(task) = task {
1182                task.await.log_err();
1183            }
1184        }));
1185    }
1186
1187    fn start_editing_message(
1188        &mut self,
1189        message_id: MessageId,
1190        message_segments: &[MessageSegment],
1191        window: &mut Window,
1192        cx: &mut Context<Self>,
1193    ) {
1194        // User message should always consist of a single text segment,
1195        // therefore we can skip returning early if it's not a text segment.
1196        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1197            return;
1198        };
1199
1200        let buffer = cx.new(|cx| {
1201            MultiBuffer::singleton(cx.new(|cx| Buffer::local(message_text.clone(), cx)), cx)
1202        });
1203        let editor = cx.new(|cx| {
1204            let mut editor = Editor::new(
1205                editor::EditorMode::AutoHeight { max_lines: 8 },
1206                buffer,
1207                None,
1208                window,
1209                cx,
1210            );
1211            editor.focus_handle(cx).focus(window);
1212            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1213            editor
1214        });
1215        let subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1216            EditorEvent::BufferEdited => {
1217                this.update_editing_message_token_count(true, cx);
1218            }
1219            _ => {}
1220        });
1221        self.editing_message = Some((
1222            message_id,
1223            EditMessageState {
1224                editor: editor.clone(),
1225                last_estimated_token_count: None,
1226                _subscription: subscription,
1227                _update_token_count_task: None,
1228            },
1229        ));
1230        self.update_editing_message_token_count(false, cx);
1231        cx.notify();
1232    }
1233
1234    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1235        let Some((message_id, state)) = self.editing_message.as_mut() else {
1236            return;
1237        };
1238
1239        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1240        state._update_token_count_task.take();
1241
1242        let Some(default_model) = LanguageModelRegistry::read_global(cx).default_model() else {
1243            state.last_estimated_token_count.take();
1244            return;
1245        };
1246
1247        let editor = state.editor.clone();
1248        let thread = self.thread.clone();
1249        let message_id = *message_id;
1250
1251        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1252            if debounce {
1253                cx.background_executor()
1254                    .timer(Duration::from_millis(200))
1255                    .await;
1256            }
1257
1258            let token_count = if let Some(task) = cx.update(|cx| {
1259                let context = thread.read(cx).context_for_message(message_id);
1260                let new_context = thread.read(cx).filter_new_context(context);
1261                let context_text =
1262                    format_context_as_string(new_context, cx).unwrap_or(String::new());
1263                let message_text = editor.read(cx).text(cx);
1264
1265                let content = context_text + &message_text;
1266
1267                if content.is_empty() {
1268                    return None;
1269                }
1270
1271                let request = language_model::LanguageModelRequest {
1272                    thread_id: None,
1273                    prompt_id: None,
1274                    messages: vec![LanguageModelRequestMessage {
1275                        role: language_model::Role::User,
1276                        content: vec![content.into()],
1277                        cache: false,
1278                    }],
1279                    tools: vec![],
1280                    stop: vec![],
1281                    temperature: None,
1282                };
1283
1284                Some(default_model.model.count_tokens(request, cx))
1285            })? {
1286                task.await?
1287            } else {
1288                0
1289            };
1290
1291            this.update(cx, |this, cx| {
1292                let Some((_message_id, state)) = this.editing_message.as_mut() else {
1293                    return;
1294                };
1295
1296                state.last_estimated_token_count = Some(token_count);
1297                cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1298            })
1299        }));
1300    }
1301
1302    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1303        self.editing_message.take();
1304        cx.notify();
1305    }
1306
1307    fn confirm_editing_message(
1308        &mut self,
1309        _: &menu::Confirm,
1310        window: &mut Window,
1311        cx: &mut Context<Self>,
1312    ) {
1313        let Some((message_id, state)) = self.editing_message.take() else {
1314            return;
1315        };
1316        let edited_text = state.editor.read(cx).text(cx);
1317        self.thread.update(cx, |thread, cx| {
1318            thread.edit_message(
1319                message_id,
1320                Role::User,
1321                vec![MessageSegment::Text(edited_text)],
1322                cx,
1323            );
1324            for message_id in self.messages_after(message_id) {
1325                thread.delete_message(*message_id, cx);
1326            }
1327        });
1328
1329        let Some(model) = LanguageModelRegistry::read_global(cx).default_model() else {
1330            return;
1331        };
1332
1333        if model.provider.must_accept_terms(cx) {
1334            cx.notify();
1335            return;
1336        }
1337
1338        self.thread.update(cx, |thread, cx| {
1339            thread.advance_prompt_id();
1340            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1341        });
1342        cx.notify();
1343    }
1344
1345    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1346        self.messages
1347            .iter()
1348            .position(|id| *id == message_id)
1349            .map(|index| &self.messages[index + 1..])
1350            .unwrap_or(&[])
1351    }
1352
1353    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1354        self.cancel_editing_message(&menu::Cancel, window, cx);
1355    }
1356
1357    fn handle_regenerate_click(
1358        &mut self,
1359        _: &ClickEvent,
1360        window: &mut Window,
1361        cx: &mut Context<Self>,
1362    ) {
1363        self.confirm_editing_message(&menu::Confirm, window, cx);
1364    }
1365
1366    fn handle_feedback_click(
1367        &mut self,
1368        message_id: MessageId,
1369        feedback: ThreadFeedback,
1370        window: &mut Window,
1371        cx: &mut Context<Self>,
1372    ) {
1373        let report = self.thread.update(cx, |thread, cx| {
1374            thread.report_message_feedback(message_id, feedback, cx)
1375        });
1376
1377        cx.spawn(async move |this, cx| {
1378            report.await?;
1379            this.update(cx, |_this, cx| cx.notify())
1380        })
1381        .detach_and_log_err(cx);
1382
1383        match feedback {
1384            ThreadFeedback::Positive => {
1385                self.open_feedback_editors.remove(&message_id);
1386            }
1387            ThreadFeedback::Negative => {
1388                self.handle_show_feedback_comments(message_id, window, cx);
1389            }
1390        }
1391    }
1392
1393    fn handle_show_feedback_comments(
1394        &mut self,
1395        message_id: MessageId,
1396        window: &mut Window,
1397        cx: &mut Context<Self>,
1398    ) {
1399        let buffer = cx.new(|cx| {
1400            let empty_string = String::new();
1401            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1402        });
1403
1404        let editor = cx.new(|cx| {
1405            let mut editor = Editor::new(
1406                editor::EditorMode::AutoHeight { max_lines: 4 },
1407                buffer,
1408                None,
1409                window,
1410                cx,
1411            );
1412            editor.set_placeholder_text(
1413                "What went wrong? Share your feedback so we can improve.",
1414                cx,
1415            );
1416            editor
1417        });
1418
1419        editor.read(cx).focus_handle(cx).focus(window);
1420        self.open_feedback_editors.insert(message_id, editor);
1421        cx.notify();
1422    }
1423
1424    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1425        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1426            return;
1427        };
1428
1429        let report_task = self.thread.update(cx, |thread, cx| {
1430            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1431        });
1432
1433        let comments = editor.read(cx).text(cx);
1434        if !comments.is_empty() {
1435            let thread_id = self.thread.read(cx).id().clone();
1436            let comments_value = String::from(comments.as_str());
1437
1438            let message_content = self
1439                .thread
1440                .read(cx)
1441                .message(message_id)
1442                .map(|msg| msg.to_string())
1443                .unwrap_or_default();
1444
1445            telemetry::event!(
1446                "Assistant Thread Feedback Comments",
1447                thread_id,
1448                message_id = message_id.0,
1449                message_content,
1450                comments = comments_value
1451            );
1452
1453            self.open_feedback_editors.remove(&message_id);
1454
1455            cx.spawn(async move |this, cx| {
1456                report_task.await?;
1457                this.update(cx, |_this, cx| cx.notify())
1458            })
1459            .detach_and_log_err(cx);
1460        }
1461    }
1462
1463    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1464        let message_id = self.messages[ix];
1465        let Some(message) = self.thread.read(cx).message(message_id) else {
1466            return Empty.into_any();
1467        };
1468
1469        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1470            return Empty.into_any();
1471        };
1472
1473        let context_store = self.context_store.clone();
1474        let workspace = self.workspace.clone();
1475        let thread = self.thread.read(cx);
1476
1477        // Get all the data we need from thread before we start using it in closures
1478        let checkpoint = thread.checkpoint_for_message(message_id);
1479        let context = thread.context_for_message(message_id).collect::<Vec<_>>();
1480
1481        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1482        let has_tool_uses = !tool_uses.is_empty();
1483        let is_generating = thread.is_generating();
1484
1485        let is_first_message = ix == 0;
1486        let is_last_message = ix == self.messages.len() - 1;
1487
1488        let show_feedback = (!is_generating && is_last_message && message.role != Role::User)
1489            || self.messages.get(ix + 1).map_or(false, |next_id| {
1490                self.thread
1491                    .read(cx)
1492                    .message(*next_id)
1493                    .map_or(false, |next_message| {
1494                        next_message.role == Role::User
1495                            && thread.tool_uses_for_message(*next_id, cx).is_empty()
1496                            && thread.tool_results_for_message(*next_id).is_empty()
1497                    })
1498            });
1499
1500        let needs_confirmation = tool_uses.iter().any(|tool_use| tool_use.needs_confirmation);
1501
1502        let generating_label = (is_generating && is_last_message)
1503            .then(|| AnimatedLabel::new("Generating").size(LabelSize::Small));
1504
1505        // Don't render user messages that are just there for returning tool results.
1506        if message.role == Role::User && thread.message_has_tool_results(message_id) {
1507            if let Some(generating_label) = generating_label {
1508                return h_flex()
1509                    .w_full()
1510                    .h_10()
1511                    .py_1p5()
1512                    .pl_4()
1513                    .pb_3()
1514                    .child(generating_label)
1515                    .into_any_element();
1516            }
1517
1518            return Empty.into_any();
1519        }
1520
1521        let edit_message_editor = self
1522            .editing_message
1523            .as_ref()
1524            .filter(|(id, _)| *id == message_id)
1525            .map(|(_, state)| state.editor.clone());
1526
1527        let colors = cx.theme().colors();
1528        let editor_bg_color = colors.editor_background;
1529
1530        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1531            .shape(ui::IconButtonShape::Square)
1532            .icon_size(IconSize::XSmall)
1533            .icon_color(Color::Ignored)
1534            .tooltip(Tooltip::text("Open Thread as Markdown"))
1535            .on_click(|_, window, cx| {
1536                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1537            });
1538
1539        // For all items that should be aligned with the LLM's response.
1540        const RESPONSE_PADDING_X: Pixels = px(18.);
1541
1542        let feedback_container = h_flex()
1543            .py_2()
1544            .px(RESPONSE_PADDING_X)
1545            .gap_1()
1546            .flex_wrap()
1547            .justify_between();
1548        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1549            Some(feedback) => feedback_container
1550                .child(
1551                    Label::new(match feedback {
1552                        ThreadFeedback::Positive => "Thanks for your feedback!",
1553                        ThreadFeedback::Negative => {
1554                            "We appreciate your feedback and will use it to improve."
1555                        }
1556                    })
1557                    .color(Color::Muted)
1558                    .size(LabelSize::XSmall)
1559                    .truncate(),
1560                )
1561                .child(
1562                    h_flex()
1563                        .pr_1()
1564                        .gap_1()
1565                        .child(
1566                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1567                                .shape(ui::IconButtonShape::Square)
1568                                .icon_size(IconSize::XSmall)
1569                                .icon_color(match feedback {
1570                                    ThreadFeedback::Positive => Color::Accent,
1571                                    ThreadFeedback::Negative => Color::Ignored,
1572                                })
1573                                .tooltip(Tooltip::text("Helpful Response"))
1574                                .on_click(cx.listener(move |this, _, window, cx| {
1575                                    this.handle_feedback_click(
1576                                        message_id,
1577                                        ThreadFeedback::Positive,
1578                                        window,
1579                                        cx,
1580                                    );
1581                                })),
1582                        )
1583                        .child(
1584                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1585                                .shape(ui::IconButtonShape::Square)
1586                                .icon_size(IconSize::XSmall)
1587                                .icon_color(match feedback {
1588                                    ThreadFeedback::Positive => Color::Ignored,
1589                                    ThreadFeedback::Negative => Color::Accent,
1590                                })
1591                                .tooltip(Tooltip::text("Not Helpful"))
1592                                .on_click(cx.listener(move |this, _, window, cx| {
1593                                    this.handle_feedback_click(
1594                                        message_id,
1595                                        ThreadFeedback::Negative,
1596                                        window,
1597                                        cx,
1598                                    );
1599                                })),
1600                        )
1601                        .child(open_as_markdown),
1602                )
1603                .into_any_element(),
1604            None => feedback_container
1605                .child(
1606                    Label::new(
1607                        "Rating the thread sends all of your current conversation to the Zed team.",
1608                    )
1609                    .color(Color::Muted)
1610                    .size(LabelSize::XSmall)
1611                    .truncate(),
1612                )
1613                .child(
1614                    h_flex()
1615                        .pr_1()
1616                        .gap_1()
1617                        .child(
1618                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1619                                .icon_size(IconSize::XSmall)
1620                                .icon_color(Color::Ignored)
1621                                .shape(ui::IconButtonShape::Square)
1622                                .tooltip(Tooltip::text("Helpful Response"))
1623                                .on_click(cx.listener(move |this, _, window, cx| {
1624                                    this.handle_feedback_click(
1625                                        message_id,
1626                                        ThreadFeedback::Positive,
1627                                        window,
1628                                        cx,
1629                                    );
1630                                })),
1631                        )
1632                        .child(
1633                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1634                                .icon_size(IconSize::XSmall)
1635                                .icon_color(Color::Ignored)
1636                                .shape(ui::IconButtonShape::Square)
1637                                .tooltip(Tooltip::text("Not Helpful"))
1638                                .on_click(cx.listener(move |this, _, window, cx| {
1639                                    this.handle_feedback_click(
1640                                        message_id,
1641                                        ThreadFeedback::Negative,
1642                                        window,
1643                                        cx,
1644                                    );
1645                                })),
1646                        )
1647                        .child(open_as_markdown),
1648                )
1649                .into_any_element(),
1650        };
1651
1652        let message_is_empty = message.should_display_content();
1653        let has_content = !message_is_empty || !context.is_empty();
1654
1655        let message_content =
1656            has_content.then(|| {
1657                v_flex()
1658                    .gap_1()
1659                    .when(!message_is_empty, |parent| {
1660                        parent.child(
1661                            if let Some(edit_message_editor) = edit_message_editor.clone() {
1662                                let settings = ThemeSettings::get_global(cx);
1663                                let font_size = TextSize::Small.rems(cx);
1664                                let line_height = font_size.to_pixels(window.rem_size()) * 1.5;
1665
1666                                let text_style = TextStyle {
1667                                    color: cx.theme().colors().text,
1668                                    font_family: settings.buffer_font.family.clone(),
1669                                    font_fallbacks: settings.buffer_font.fallbacks.clone(),
1670                                    font_features: settings.buffer_font.features.clone(),
1671                                    font_size: font_size.into(),
1672                                    line_height: line_height.into(),
1673                                    ..Default::default()
1674                                };
1675
1676                                div()
1677                                    .key_context("EditMessageEditor")
1678                                    .on_action(cx.listener(Self::cancel_editing_message))
1679                                    .on_action(cx.listener(Self::confirm_editing_message))
1680                                    .min_h_6()
1681                                    .child(EditorElement::new(
1682                                        &edit_message_editor,
1683                                        EditorStyle {
1684                                            background: colors.editor_background,
1685                                            local_player: cx.theme().players().local(),
1686                                            text: text_style,
1687                                            syntax: cx.theme().syntax().clone(),
1688                                            ..Default::default()
1689                                        },
1690                                    ))
1691                                    .into_any()
1692                            } else {
1693                                div()
1694                                    .min_h_6()
1695                                    .child(self.render_message_content(
1696                                        message_id,
1697                                        rendered_message,
1698                                        has_tool_uses,
1699                                        workspace.clone(),
1700                                        window,
1701                                        cx,
1702                                    ))
1703                                    .into_any()
1704                            },
1705                        )
1706                    })
1707                    .when(!context.is_empty(), |parent| {
1708                        parent.child(h_flex().flex_wrap().gap_1().children(
1709                            context.into_iter().map(|context| {
1710                                let context_id = context.id();
1711                                ContextPill::added(
1712                                    AddedContext::new(context, cx),
1713                                    false,
1714                                    false,
1715                                    None,
1716                                )
1717                                .on_click(Rc::new(cx.listener({
1718                                    let workspace = workspace.clone();
1719                                    let context_store = context_store.clone();
1720                                    move |_, _, window, cx| {
1721                                        if let Some(workspace) = workspace.upgrade() {
1722                                            open_context(
1723                                                context_id,
1724                                                context_store.clone(),
1725                                                workspace,
1726                                                window,
1727                                                cx,
1728                                            );
1729                                            cx.notify();
1730                                        }
1731                                    }
1732                                })))
1733                            }),
1734                        ))
1735                    })
1736            });
1737
1738        let styled_message = match message.role {
1739            Role::User => v_flex()
1740                .id(("message-container", ix))
1741                .map(|this| {
1742                    if is_first_message {
1743                        this.pt_2()
1744                    } else {
1745                        this.pt_4()
1746                    }
1747                })
1748                .pl_2()
1749                .pr_2p5()
1750                .pb_4()
1751                .child(
1752                    v_flex()
1753                        .id(("user-message", ix))
1754                        .bg(editor_bg_color)
1755                        .rounded_lg()
1756                        .shadow_md()
1757                        .border_1()
1758                        .border_color(colors.border)
1759                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1760                        .cursor_pointer()
1761                        .child(div().p_2().pt_2p5().children(message_content))
1762                        .when_some(edit_message_editor.clone(), |this, edit_editor| {
1763                            let focus_handle = edit_editor.focus_handle(cx);
1764
1765                            this.child(
1766                                h_flex()
1767                                    .p_1()
1768                                    .border_t_1()
1769                                    .border_color(colors.border_variant)
1770                                    .gap_1()
1771                                    .justify_end()
1772                                    .child(
1773                                        Button::new("cancel-edit-message", "Cancel")
1774                                            .label_size(LabelSize::Small)
1775                                            .key_binding(
1776                                                KeyBinding::for_action_in(
1777                                                    &menu::Cancel,
1778                                                    &focus_handle,
1779                                                    window,
1780                                                    cx,
1781                                                )
1782                                                .map(|kb| kb.size(rems_from_px(12.))),
1783                                            )
1784                                            .on_click(cx.listener(Self::handle_cancel_click)),
1785                                    )
1786                                    .child(
1787                                        Button::new("confirm-edit-message", "Regenerate")
1788                                            .disabled(edit_editor.read(cx).is_empty(cx))
1789                                            .label_size(LabelSize::Small)
1790                                            .key_binding(
1791                                                KeyBinding::for_action_in(
1792                                                    &menu::Confirm,
1793                                                    &focus_handle,
1794                                                    window,
1795                                                    cx,
1796                                                )
1797                                                .map(|kb| kb.size(rems_from_px(12.))),
1798                                            )
1799                                            .on_click(cx.listener(Self::handle_regenerate_click)),
1800                                    ),
1801                            )
1802                        })
1803                        .when(edit_message_editor.is_none(), |this| {
1804                            this.tooltip(Tooltip::text("Click To Edit"))
1805                        })
1806                        .on_click(cx.listener({
1807                            let message_segments = message.segments.clone();
1808                            move |this, _, window, cx| {
1809                                this.start_editing_message(
1810                                    message_id,
1811                                    &message_segments,
1812                                    window,
1813                                    cx,
1814                                );
1815                            }
1816                        })),
1817                ),
1818            Role::Assistant => v_flex()
1819                .id(("message-container", ix))
1820                .px(RESPONSE_PADDING_X)
1821                .gap_2()
1822                .children(message_content)
1823                .when(has_tool_uses, |parent| {
1824                    parent.children(tool_uses.into_iter().map(|tool_use| {
1825                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
1826                    }))
1827                }),
1828            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
1829                v_flex()
1830                    .bg(colors.editor_background)
1831                    .rounded_sm()
1832                    .child(div().p_4().children(message_content)),
1833            ),
1834        };
1835
1836        let after_editing_message = self
1837            .editing_message
1838            .as_ref()
1839            .map_or(false, |(editing_message_id, _)| {
1840                message_id > *editing_message_id
1841            });
1842
1843        let panel_background = cx.theme().colors().panel_background;
1844
1845        v_flex()
1846            .w_full()
1847            .when_some(checkpoint, |parent, checkpoint| {
1848                let mut is_pending = false;
1849                let mut error = None;
1850                if let Some(last_restore_checkpoint) =
1851                    self.thread.read(cx).last_restore_checkpoint()
1852                {
1853                    if last_restore_checkpoint.message_id() == message_id {
1854                        match last_restore_checkpoint {
1855                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
1856                            LastRestoreCheckpoint::Error { error: err, .. } => {
1857                                error = Some(err.clone());
1858                            }
1859                        }
1860                    }
1861                }
1862
1863                let restore_checkpoint_button =
1864                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
1865                        .icon(if error.is_some() {
1866                            IconName::XCircle
1867                        } else {
1868                            IconName::Undo
1869                        })
1870                        .icon_size(IconSize::XSmall)
1871                        .icon_position(IconPosition::Start)
1872                        .icon_color(if error.is_some() {
1873                            Some(Color::Error)
1874                        } else {
1875                            None
1876                        })
1877                        .label_size(LabelSize::XSmall)
1878                        .disabled(is_pending)
1879                        .on_click(cx.listener(move |this, _, _window, cx| {
1880                            this.thread.update(cx, |thread, cx| {
1881                                thread
1882                                    .restore_checkpoint(checkpoint.clone(), cx)
1883                                    .detach_and_log_err(cx);
1884                            });
1885                        }));
1886
1887                let restore_checkpoint_button = if is_pending {
1888                    restore_checkpoint_button
1889                        .with_animation(
1890                            ("pulsating-restore-checkpoint-button", ix),
1891                            Animation::new(Duration::from_secs(2))
1892                                .repeat()
1893                                .with_easing(pulsating_between(0.6, 1.)),
1894                            |label, delta| label.alpha(delta),
1895                        )
1896                        .into_any_element()
1897                } else if let Some(error) = error {
1898                    restore_checkpoint_button
1899                        .tooltip(Tooltip::text(error.to_string()))
1900                        .into_any_element()
1901                } else {
1902                    restore_checkpoint_button.into_any_element()
1903                };
1904
1905                parent.child(
1906                    h_flex()
1907                        .pt_2p5()
1908                        .px_2p5()
1909                        .w_full()
1910                        .gap_1()
1911                        .child(ui::Divider::horizontal())
1912                        .child(restore_checkpoint_button)
1913                        .child(ui::Divider::horizontal()),
1914                )
1915            })
1916            .when(is_first_message, |parent| {
1917                parent.child(self.render_rules_item(cx))
1918            })
1919            .child(styled_message)
1920            .when(!needs_confirmation && generating_label.is_some(), |this| {
1921                this.child(
1922                    h_flex()
1923                        .h_8()
1924                        .mt_2()
1925                        .mb_4()
1926                        .ml_4()
1927                        .py_1p5()
1928                        .child(generating_label.unwrap()),
1929                )
1930            })
1931            .when(show_feedback, move |parent| {
1932                parent.child(feedback_items).when_some(
1933                    self.open_feedback_editors.get(&message_id),
1934                    move |parent, feedback_editor| {
1935                        let focus_handle = feedback_editor.focus_handle(cx);
1936                        parent.child(
1937                            v_flex()
1938                                .key_context("AgentFeedbackMessageEditor")
1939                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
1940                                    this.open_feedback_editors.remove(&message_id);
1941                                    cx.notify();
1942                                }))
1943                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
1944                                    this.submit_feedback_message(message_id, cx);
1945                                    cx.notify();
1946                                }))
1947                                .on_action(cx.listener(Self::confirm_editing_message))
1948                                .mb_2()
1949                                .mx_4()
1950                                .p_2()
1951                                .rounded_md()
1952                                .border_1()
1953                                .border_color(cx.theme().colors().border)
1954                                .bg(cx.theme().colors().editor_background)
1955                                .child(feedback_editor.clone())
1956                                .child(
1957                                    h_flex()
1958                                        .gap_1()
1959                                        .justify_end()
1960                                        .child(
1961                                            Button::new("dismiss-feedback-message", "Cancel")
1962                                                .label_size(LabelSize::Small)
1963                                                .key_binding(
1964                                                    KeyBinding::for_action_in(
1965                                                        &menu::Cancel,
1966                                                        &focus_handle,
1967                                                        window,
1968                                                        cx,
1969                                                    )
1970                                                    .map(|kb| kb.size(rems_from_px(10.))),
1971                                                )
1972                                                .on_click(cx.listener(
1973                                                    move |this, _, _window, cx| {
1974                                                        this.open_feedback_editors
1975                                                            .remove(&message_id);
1976                                                        cx.notify();
1977                                                    },
1978                                                )),
1979                                        )
1980                                        .child(
1981                                            Button::new(
1982                                                "submit-feedback-message",
1983                                                "Share Feedback",
1984                                            )
1985                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
1986                                            .label_size(LabelSize::Small)
1987                                            .key_binding(
1988                                                KeyBinding::for_action_in(
1989                                                    &menu::Confirm,
1990                                                    &focus_handle,
1991                                                    window,
1992                                                    cx,
1993                                                )
1994                                                .map(|kb| kb.size(rems_from_px(10.))),
1995                                            )
1996                                            .on_click(
1997                                                cx.listener(move |this, _, _window, cx| {
1998                                                    this.submit_feedback_message(message_id, cx);
1999                                                    cx.notify()
2000                                                }),
2001                                            ),
2002                                        ),
2003                                ),
2004                        )
2005                    },
2006                )
2007            })
2008            .when(after_editing_message, |parent| {
2009                // Backdrop to dim out the whole thread below the editing user message
2010                parent.relative().child(
2011                    div()
2012                        .occlude()
2013                        .absolute()
2014                        .inset_0()
2015                        .size_full()
2016                        .bg(panel_background)
2017                        .opacity(0.8),
2018                )
2019            })
2020            .into_any()
2021    }
2022
2023    fn render_message_content(
2024        &self,
2025        message_id: MessageId,
2026        rendered_message: &RenderedMessage,
2027        has_tool_uses: bool,
2028        workspace: WeakEntity<Workspace>,
2029        window: &Window,
2030        cx: &Context<Self>,
2031    ) -> impl IntoElement {
2032        let is_last_message = self.messages.last() == Some(&message_id);
2033        let is_generating = self.thread.read(cx).is_generating();
2034        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2035            rendered_message
2036                .segments
2037                .iter()
2038                .enumerate()
2039                .next_back()
2040                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2041                .map(|(index, _)| index)
2042        } else {
2043            None
2044        };
2045
2046        let message_role = self
2047            .thread
2048            .read(cx)
2049            .message(message_id)
2050            .map(|m| m.role)
2051            .unwrap_or(Role::User);
2052
2053        let is_assistant_message = message_role == Role::Assistant;
2054        let is_user_message = message_role == Role::User;
2055
2056        v_flex()
2057            .text_ui(cx)
2058            .gap_2()
2059            .when(is_user_message, |this| this.text_xs())
2060            .children(
2061                rendered_message.segments.iter().enumerate().map(
2062                    |(index, segment)| match segment {
2063                        RenderedMessageSegment::Thinking {
2064                            content,
2065                            scroll_handle,
2066                        } => self
2067                            .render_message_thinking_segment(
2068                                message_id,
2069                                index,
2070                                content.clone(),
2071                                &scroll_handle,
2072                                Some(index) == pending_thinking_segment_index,
2073                                window,
2074                                cx,
2075                            )
2076                            .into_any_element(),
2077                        RenderedMessageSegment::Text(markdown) => {
2078                            let markdown_element = MarkdownElement::new(
2079                                markdown.clone(),
2080                                if is_user_message {
2081                                    let mut style = default_markdown_style(window, cx);
2082                                    let mut text_style = window.text_style();
2083                                    let theme_settings = ThemeSettings::get_global(cx);
2084
2085                                    let buffer_font = theme_settings.buffer_font.family.clone();
2086                                    let buffer_font_size = TextSize::Small.rems(cx);
2087
2088                                    text_style.refine(&TextStyleRefinement {
2089                                        font_family: Some(buffer_font),
2090                                        font_size: Some(buffer_font_size.into()),
2091                                        ..Default::default()
2092                                    });
2093
2094                                    style.base_text_style = text_style;
2095                                    style
2096                                } else {
2097                                    default_markdown_style(window, cx)
2098                                },
2099                            );
2100
2101                            let markdown_element = if is_assistant_message {
2102                                markdown_element.code_block_renderer(
2103                                    markdown::CodeBlockRenderer::Custom {
2104                                        render: Arc::new({
2105                                            let workspace = workspace.clone();
2106                                            let active_thread = cx.entity();
2107                                            move |kind,
2108                                                  parsed_markdown,
2109                                                  range,
2110                                                  metadata,
2111                                                  window,
2112                                                  cx| {
2113                                                render_markdown_code_block(
2114                                                    message_id,
2115                                                    range.start,
2116                                                    kind,
2117                                                    parsed_markdown,
2118                                                    metadata,
2119                                                    active_thread.clone(),
2120                                                    workspace.clone(),
2121                                                    window,
2122                                                    cx,
2123                                                )
2124                                            }
2125                                        }),
2126                                        transform: Some(Arc::new({
2127                                            let active_thread = cx.entity();
2128                                            move |el, range, metadata, _, cx| {
2129                                                let is_expanded = active_thread
2130                                                    .read(cx)
2131                                                    .expanded_code_blocks
2132                                                    .get(&(message_id, range.start))
2133                                                    .copied()
2134                                                    .unwrap_or(false);
2135
2136                                                if is_expanded
2137                                                    || metadata.line_count
2138                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2139                                                {
2140                                                    return el;
2141                                                }
2142                                                el.child(
2143                                                    div()
2144                                                        .absolute()
2145                                                        .bottom_0()
2146                                                        .left_0()
2147                                                        .w_full()
2148                                                        .h_1_4()
2149                                                        .rounded_b_lg()
2150                                                        .bg(gpui::linear_gradient(
2151                                                            0.,
2152                                                            gpui::linear_color_stop(
2153                                                                cx.theme()
2154                                                                    .colors()
2155                                                                    .editor_background,
2156                                                                0.,
2157                                                            ),
2158                                                            gpui::linear_color_stop(
2159                                                                cx.theme()
2160                                                                    .colors()
2161                                                                    .editor_background
2162                                                                    .opacity(0.),
2163                                                                1.,
2164                                                            ),
2165                                                        )),
2166                                                )
2167                                            }
2168                                        })),
2169                                    },
2170                                )
2171                            } else {
2172                                markdown_element.code_block_renderer(
2173                                    markdown::CodeBlockRenderer::Default {
2174                                        copy_button: false,
2175                                        border: true,
2176                                    },
2177                                )
2178                            };
2179
2180                            div()
2181                                .child(markdown_element.on_url_click({
2182                                    let workspace = self.workspace.clone();
2183                                    move |text, window, cx| {
2184                                        open_markdown_link(text, workspace.clone(), window, cx);
2185                                    }
2186                                }))
2187                                .into_any_element()
2188                        }
2189                    },
2190                ),
2191            )
2192    }
2193
2194    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2195        cx.theme().colors().border.opacity(0.5)
2196    }
2197
2198    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2199        cx.theme()
2200            .colors()
2201            .element_background
2202            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2203    }
2204
2205    fn render_message_thinking_segment(
2206        &self,
2207        message_id: MessageId,
2208        ix: usize,
2209        markdown: Entity<Markdown>,
2210        scroll_handle: &ScrollHandle,
2211        pending: bool,
2212        window: &Window,
2213        cx: &Context<Self>,
2214    ) -> impl IntoElement {
2215        let is_open = self
2216            .expanded_thinking_segments
2217            .get(&(message_id, ix))
2218            .copied()
2219            .unwrap_or_default();
2220
2221        let editor_bg = cx.theme().colors().panel_background;
2222
2223        div().map(|this| {
2224            if pending {
2225                this.v_flex()
2226                    .mt_neg_2()
2227                    .mb_1p5()
2228                    .child(
2229                        h_flex()
2230                            .group("disclosure-header")
2231                            .justify_between()
2232                            .child(
2233                                h_flex()
2234                                    .gap_1p5()
2235                                    .child(
2236                                        Icon::new(IconName::LightBulb)
2237                                            .size(IconSize::XSmall)
2238                                            .color(Color::Muted),
2239                                    )
2240                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2241                            )
2242                            .child(
2243                                h_flex()
2244                                    .gap_1()
2245                                    .child(
2246                                        div().visible_on_hover("disclosure-header").child(
2247                                            Disclosure::new("thinking-disclosure", is_open)
2248                                                .opened_icon(IconName::ChevronUp)
2249                                                .closed_icon(IconName::ChevronDown)
2250                                                .on_click(cx.listener({
2251                                                    move |this, _event, _window, _cx| {
2252                                                        let is_open = this
2253                                                            .expanded_thinking_segments
2254                                                            .entry((message_id, ix))
2255                                                            .or_insert(false);
2256
2257                                                        *is_open = !*is_open;
2258                                                    }
2259                                                })),
2260                                        ),
2261                                    )
2262                                    .child({
2263                                        Icon::new(IconName::ArrowCircle)
2264                                            .color(Color::Accent)
2265                                            .size(IconSize::Small)
2266                                            .with_animation(
2267                                                "arrow-circle",
2268                                                Animation::new(Duration::from_secs(2)).repeat(),
2269                                                |icon, delta| {
2270                                                    icon.transform(Transformation::rotate(
2271                                                        percentage(delta),
2272                                                    ))
2273                                                },
2274                                            )
2275                                    }),
2276                            ),
2277                    )
2278                    .when(!is_open, |this| {
2279                        let gradient_overlay = div()
2280                            .rounded_b_lg()
2281                            .h_full()
2282                            .absolute()
2283                            .w_full()
2284                            .bottom_0()
2285                            .left_0()
2286                            .bg(linear_gradient(
2287                                180.,
2288                                linear_color_stop(editor_bg, 1.),
2289                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2290                            ));
2291
2292                        this.child(
2293                            div()
2294                                .relative()
2295                                .bg(editor_bg)
2296                                .rounded_b_lg()
2297                                .mt_2()
2298                                .pl_4()
2299                                .child(
2300                                    div()
2301                                        .id(("thinking-content", ix))
2302                                        .max_h_20()
2303                                        .track_scroll(scroll_handle)
2304                                        .text_ui_sm(cx)
2305                                        .overflow_hidden()
2306                                        .child(
2307                                            MarkdownElement::new(
2308                                                markdown.clone(),
2309                                                default_markdown_style(window, cx),
2310                                            )
2311                                            .on_url_click({
2312                                                let workspace = self.workspace.clone();
2313                                                move |text, window, cx| {
2314                                                    open_markdown_link(
2315                                                        text,
2316                                                        workspace.clone(),
2317                                                        window,
2318                                                        cx,
2319                                                    );
2320                                                }
2321                                            }),
2322                                        ),
2323                                )
2324                                .child(gradient_overlay),
2325                        )
2326                    })
2327                    .when(is_open, |this| {
2328                        this.child(
2329                            div()
2330                                .id(("thinking-content", ix))
2331                                .h_full()
2332                                .bg(editor_bg)
2333                                .text_ui_sm(cx)
2334                                .child(
2335                                    MarkdownElement::new(
2336                                        markdown.clone(),
2337                                        default_markdown_style(window, cx),
2338                                    )
2339                                    .on_url_click({
2340                                        let workspace = self.workspace.clone();
2341                                        move |text, window, cx| {
2342                                            open_markdown_link(text, workspace.clone(), window, cx);
2343                                        }
2344                                    }),
2345                                ),
2346                        )
2347                    })
2348            } else {
2349                this.v_flex()
2350                    .mt_neg_2()
2351                    .child(
2352                        h_flex()
2353                            .group("disclosure-header")
2354                            .pr_1()
2355                            .justify_between()
2356                            .opacity(0.8)
2357                            .hover(|style| style.opacity(1.))
2358                            .child(
2359                                h_flex()
2360                                    .gap_1p5()
2361                                    .child(
2362                                        Icon::new(IconName::LightBulb)
2363                                            .size(IconSize::XSmall)
2364                                            .color(Color::Muted),
2365                                    )
2366                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2367                            )
2368                            .child(
2369                                div().visible_on_hover("disclosure-header").child(
2370                                    Disclosure::new("thinking-disclosure", is_open)
2371                                        .opened_icon(IconName::ChevronUp)
2372                                        .closed_icon(IconName::ChevronDown)
2373                                        .on_click(cx.listener({
2374                                            move |this, _event, _window, _cx| {
2375                                                let is_open = this
2376                                                    .expanded_thinking_segments
2377                                                    .entry((message_id, ix))
2378                                                    .or_insert(false);
2379
2380                                                *is_open = !*is_open;
2381                                            }
2382                                        })),
2383                                ),
2384                            ),
2385                    )
2386                    .child(
2387                        div()
2388                            .id(("thinking-content", ix))
2389                            .relative()
2390                            .mt_1p5()
2391                            .ml_1p5()
2392                            .pl_2p5()
2393                            .border_l_1()
2394                            .border_color(cx.theme().colors().border_variant)
2395                            .text_ui_sm(cx)
2396                            .when(is_open, |this| {
2397                                this.child(
2398                                    MarkdownElement::new(
2399                                        markdown.clone(),
2400                                        default_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            }
2412        })
2413    }
2414
2415    fn render_tool_use(
2416        &self,
2417        tool_use: ToolUse,
2418        window: &mut Window,
2419        workspace: WeakEntity<Workspace>,
2420        cx: &mut Context<Self>,
2421    ) -> impl IntoElement + use<> {
2422        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2423            return card.render(&tool_use.status, window, workspace, cx);
2424        }
2425
2426        let is_open = self
2427            .expanded_tool_uses
2428            .get(&tool_use.id)
2429            .copied()
2430            .unwrap_or_default();
2431
2432        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2433
2434        let fs = self
2435            .workspace
2436            .upgrade()
2437            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2438        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2439        let needs_confirmation_tools = tool_use.needs_confirmation;
2440
2441        let status_icons = div().child(match &tool_use.status {
2442            ToolUseStatus::NeedsConfirmation => {
2443                let icon = Icon::new(IconName::Warning)
2444                    .color(Color::Warning)
2445                    .size(IconSize::Small);
2446                icon.into_any_element()
2447            }
2448            ToolUseStatus::Pending
2449            | ToolUseStatus::InputStillStreaming
2450            | ToolUseStatus::Running => {
2451                let icon = Icon::new(IconName::ArrowCircle)
2452                    .color(Color::Accent)
2453                    .size(IconSize::Small);
2454                icon.with_animation(
2455                    "arrow-circle",
2456                    Animation::new(Duration::from_secs(2)).repeat(),
2457                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2458                )
2459                .into_any_element()
2460            }
2461            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2462            ToolUseStatus::Error(_) => {
2463                let icon = Icon::new(IconName::Close)
2464                    .color(Color::Error)
2465                    .size(IconSize::Small);
2466                icon.into_any_element()
2467            }
2468        });
2469
2470        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2471        let results_content_container = || v_flex().p_2().gap_0p5();
2472
2473        let results_content = v_flex()
2474            .gap_1()
2475            .child(
2476                results_content_container()
2477                    .child(
2478                        Label::new("Input")
2479                            .size(LabelSize::XSmall)
2480                            .color(Color::Muted)
2481                            .buffer_font(cx),
2482                    )
2483                    .child(
2484                        div()
2485                            .w_full()
2486                            .text_ui_sm(cx)
2487                            .children(rendered_tool_use.as_ref().map(|rendered| {
2488                                MarkdownElement::new(
2489                                    rendered.input.clone(),
2490                                    tool_use_markdown_style(window, cx),
2491                                )
2492                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2493                                    copy_button: false,
2494                                    border: false,
2495                                })
2496                                .on_url_click({
2497                                    let workspace = self.workspace.clone();
2498                                    move |text, window, cx| {
2499                                        open_markdown_link(text, workspace.clone(), window, cx);
2500                                    }
2501                                })
2502                            })),
2503                    ),
2504            )
2505            .map(|container| match tool_use.status {
2506                ToolUseStatus::Finished(_) => container.child(
2507                    results_content_container()
2508                        .border_t_1()
2509                        .border_color(self.tool_card_border_color(cx))
2510                        .child(
2511                            Label::new("Result")
2512                                .size(LabelSize::XSmall)
2513                                .color(Color::Muted)
2514                                .buffer_font(cx),
2515                        )
2516                        .child(div().w_full().text_ui_sm(cx).children(
2517                            rendered_tool_use.as_ref().map(|rendered| {
2518                                MarkdownElement::new(
2519                                    rendered.output.clone(),
2520                                    tool_use_markdown_style(window, cx),
2521                                )
2522                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2523                                    copy_button: false,
2524                                    border: false,
2525                                })
2526                                .on_url_click({
2527                                    let workspace = self.workspace.clone();
2528                                    move |text, window, cx| {
2529                                        open_markdown_link(text, workspace.clone(), window, cx);
2530                                    }
2531                                })
2532                                .into_any_element()
2533                            }),
2534                        )),
2535                ),
2536                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2537                    results_content_container()
2538                        .border_t_1()
2539                        .border_color(self.tool_card_border_color(cx))
2540                        .child(
2541                            h_flex()
2542                                .gap_1()
2543                                .child(
2544                                    Icon::new(IconName::ArrowCircle)
2545                                        .size(IconSize::Small)
2546                                        .color(Color::Accent)
2547                                        .with_animation(
2548                                            "arrow-circle",
2549                                            Animation::new(Duration::from_secs(2)).repeat(),
2550                                            |icon, delta| {
2551                                                icon.transform(Transformation::rotate(percentage(
2552                                                    delta,
2553                                                )))
2554                                            },
2555                                        ),
2556                                )
2557                                .child(
2558                                    Label::new("Running…")
2559                                        .size(LabelSize::XSmall)
2560                                        .color(Color::Muted)
2561                                        .buffer_font(cx),
2562                                ),
2563                        ),
2564                ),
2565                ToolUseStatus::Error(_) => container.child(
2566                    results_content_container()
2567                        .border_t_1()
2568                        .border_color(self.tool_card_border_color(cx))
2569                        .child(
2570                            Label::new("Error")
2571                                .size(LabelSize::XSmall)
2572                                .color(Color::Muted)
2573                                .buffer_font(cx),
2574                        )
2575                        .child(
2576                            div()
2577                                .text_ui_sm(cx)
2578                                .children(rendered_tool_use.as_ref().map(|rendered| {
2579                                    MarkdownElement::new(
2580                                        rendered.output.clone(),
2581                                        tool_use_markdown_style(window, cx),
2582                                    )
2583                                    .on_url_click({
2584                                        let workspace = self.workspace.clone();
2585                                        move |text, window, cx| {
2586                                            open_markdown_link(text, workspace.clone(), window, cx);
2587                                        }
2588                                    })
2589                                    .into_any_element()
2590                                })),
2591                        ),
2592                ),
2593                ToolUseStatus::Pending => container,
2594                ToolUseStatus::NeedsConfirmation => container.child(
2595                    results_content_container()
2596                        .border_t_1()
2597                        .border_color(self.tool_card_border_color(cx))
2598                        .child(
2599                            Label::new("Asking Permission")
2600                                .size(LabelSize::Small)
2601                                .color(Color::Muted)
2602                                .buffer_font(cx),
2603                        ),
2604                ),
2605            });
2606
2607        let gradient_overlay = |color: Hsla| {
2608            div()
2609                .h_full()
2610                .absolute()
2611                .w_12()
2612                .bottom_0()
2613                .map(|element| {
2614                    if is_status_finished {
2615                        element.right_6()
2616                    } else {
2617                        element.right(px(44.))
2618                    }
2619                })
2620                .bg(linear_gradient(
2621                    90.,
2622                    linear_color_stop(color, 1.),
2623                    linear_color_stop(color.opacity(0.2), 0.),
2624                ))
2625        };
2626
2627        v_flex().gap_1().mb_2().map(|element| {
2628            if !needs_confirmation_tools {
2629                element.child(
2630                    v_flex()
2631                        .child(
2632                            h_flex()
2633                                .group("disclosure-header")
2634                                .relative()
2635                                .gap_1p5()
2636                                .justify_between()
2637                                .opacity(0.8)
2638                                .hover(|style| style.opacity(1.))
2639                                .when(!is_status_finished, |this| this.pr_2())
2640                                .child(
2641                                    h_flex()
2642                                        .id("tool-label-container")
2643                                        .gap_1p5()
2644                                        .max_w_full()
2645                                        .overflow_x_scroll()
2646                                        .child(
2647                                            Icon::new(tool_use.icon)
2648                                                .size(IconSize::XSmall)
2649                                                .color(Color::Muted),
2650                                        )
2651                                        .child(
2652                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2653                                                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| {
2654                                                    open_markdown_link(text, workspace.clone(), window, cx);
2655                                                }}))
2656                                            ),
2657                                        ),
2658                                )
2659                                .child(
2660                                    h_flex()
2661                                        .gap_1()
2662                                        .child(
2663                                            div().visible_on_hover("disclosure-header").child(
2664                                                Disclosure::new("tool-use-disclosure", is_open)
2665                                                    .opened_icon(IconName::ChevronUp)
2666                                                    .closed_icon(IconName::ChevronDown)
2667                                                    .on_click(cx.listener({
2668                                                        let tool_use_id = tool_use.id.clone();
2669                                                        move |this, _event, _window, _cx| {
2670                                                            let is_open = this
2671                                                                .expanded_tool_uses
2672                                                                .entry(tool_use_id.clone())
2673                                                                .or_insert(false);
2674
2675                                                            *is_open = !*is_open;
2676                                                        }
2677                                                    })),
2678                                            ),
2679                                        )
2680                                        .child(status_icons),
2681                                )
2682                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2683                        )
2684                        .map(|parent| {
2685                            if !is_open {
2686                                return parent;
2687                            }
2688
2689                            parent.child(
2690                                v_flex()
2691                                    .mt_1()
2692                                    .border_1()
2693                                    .border_color(self.tool_card_border_color(cx))
2694                                    .bg(cx.theme().colors().editor_background)
2695                                    .rounded_lg()
2696                                    .child(results_content),
2697                            )
2698                        }),
2699                )
2700            } else {
2701                v_flex()
2702                    .mb_2()
2703                    .rounded_lg()
2704                    .border_1()
2705                    .border_color(self.tool_card_border_color(cx))
2706                    .overflow_hidden()
2707                    .child(
2708                        h_flex()
2709                            .group("disclosure-header")
2710                            .relative()
2711                            .justify_between()
2712                            .py_1()
2713                            .map(|element| {
2714                                if is_status_finished {
2715                                    element.pl_2().pr_0p5()
2716                                } else {
2717                                    element.px_2()
2718                                }
2719                            })
2720                            .bg(self.tool_card_header_bg(cx))
2721                            .map(|element| {
2722                                if is_open {
2723                                    element.border_b_1().rounded_t_md()
2724                                } else if needs_confirmation {
2725                                    element.rounded_t_md()
2726                                } else {
2727                                    element.rounded_md()
2728                                }
2729                            })
2730                            .border_color(self.tool_card_border_color(cx))
2731                            .child(
2732                                h_flex()
2733                                    .id("tool-label-container")
2734                                    .gap_1p5()
2735                                    .max_w_full()
2736                                    .overflow_x_scroll()
2737                                    .child(
2738                                        Icon::new(tool_use.icon)
2739                                            .size(IconSize::XSmall)
2740                                            .color(Color::Muted),
2741                                    )
2742                                    .child(
2743                                        h_flex().pr_8().text_ui_sm(cx).children(
2744                                            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| {
2745                                                open_markdown_link(text, workspace.clone(), window, cx);
2746                                            }}))
2747                                        ),
2748                                    ),
2749                            )
2750                            .child(
2751                                h_flex()
2752                                    .gap_1()
2753                                    .child(
2754                                        div().visible_on_hover("disclosure-header").child(
2755                                            Disclosure::new("tool-use-disclosure", is_open)
2756                                                .opened_icon(IconName::ChevronUp)
2757                                                .closed_icon(IconName::ChevronDown)
2758                                                .on_click(cx.listener({
2759                                                    let tool_use_id = tool_use.id.clone();
2760                                                    move |this, _event, _window, _cx| {
2761                                                        let is_open = this
2762                                                            .expanded_tool_uses
2763                                                            .entry(tool_use_id.clone())
2764                                                            .or_insert(false);
2765
2766                                                        *is_open = !*is_open;
2767                                                    }
2768                                                })),
2769                                        ),
2770                                    )
2771                                    .child(status_icons),
2772                            )
2773                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2774                    )
2775                    .map(|parent| {
2776                        if !is_open {
2777                            return parent;
2778                        }
2779
2780                        parent.child(
2781                            v_flex()
2782                                .bg(cx.theme().colors().editor_background)
2783                                .map(|element| {
2784                                    if  needs_confirmation {
2785                                        element.rounded_none()
2786                                    } else {
2787                                        element.rounded_b_lg()
2788                                    }
2789                                })
2790                                .child(results_content),
2791                        )
2792                    })
2793                    .when(needs_confirmation, |this| {
2794                        this.child(
2795                            h_flex()
2796                                .py_1()
2797                                .pl_2()
2798                                .pr_1()
2799                                .gap_1()
2800                                .justify_between()
2801                                .bg(cx.theme().colors().editor_background)
2802                                .border_t_1()
2803                                .border_color(self.tool_card_border_color(cx))
2804                                .rounded_b_lg()
2805                                .child(
2806                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
2807                                )
2808                                .child(
2809                                    h_flex()
2810                                        .gap_0p5()
2811                                        .child({
2812                                            let tool_id = tool_use.id.clone();
2813                                            Button::new(
2814                                                "always-allow-tool-action",
2815                                                "Always Allow",
2816                                            )
2817                                            .label_size(LabelSize::Small)
2818                                            .icon(IconName::CheckDouble)
2819                                            .icon_position(IconPosition::Start)
2820                                            .icon_size(IconSize::Small)
2821                                            .icon_color(Color::Success)
2822                                            .tooltip(move |window, cx|  {
2823                                                Tooltip::with_meta(
2824                                                    "Never ask for permission",
2825                                                    None,
2826                                                    "Restore the original behavior in your Agent Panel settings",
2827                                                    window,
2828                                                    cx,
2829                                                )
2830                                            })
2831                                            .on_click(cx.listener(
2832                                                move |this, event, window, cx| {
2833                                                    if let Some(fs) = fs.clone() {
2834                                                        update_settings_file::<AssistantSettings>(
2835                                                            fs.clone(),
2836                                                            cx,
2837                                                            |settings, _| {
2838                                                                settings.set_always_allow_tool_actions(true);
2839                                                            },
2840                                                        );
2841                                                    }
2842                                                    this.handle_allow_tool(
2843                                                        tool_id.clone(),
2844                                                        event,
2845                                                        window,
2846                                                        cx,
2847                                                    )
2848                                                },
2849                                            ))
2850                                        })
2851                                        .child(ui::Divider::vertical())
2852                                        .child({
2853                                            let tool_id = tool_use.id.clone();
2854                                            Button::new("allow-tool-action", "Allow")
2855                                                .label_size(LabelSize::Small)
2856                                                .icon(IconName::Check)
2857                                                .icon_position(IconPosition::Start)
2858                                                .icon_size(IconSize::Small)
2859                                                .icon_color(Color::Success)
2860                                                .on_click(cx.listener(
2861                                                    move |this, event, window, cx| {
2862                                                        this.handle_allow_tool(
2863                                                            tool_id.clone(),
2864                                                            event,
2865                                                            window,
2866                                                            cx,
2867                                                        )
2868                                                    },
2869                                                ))
2870                                        })
2871                                        .child({
2872                                            let tool_id = tool_use.id.clone();
2873                                            let tool_name: Arc<str> = tool_use.name.into();
2874                                            Button::new("deny-tool", "Deny")
2875                                                .label_size(LabelSize::Small)
2876                                                .icon(IconName::Close)
2877                                                .icon_position(IconPosition::Start)
2878                                                .icon_size(IconSize::Small)
2879                                                .icon_color(Color::Error)
2880                                                .on_click(cx.listener(
2881                                                    move |this, event, window, cx| {
2882                                                        this.handle_deny_tool(
2883                                                            tool_id.clone(),
2884                                                            tool_name.clone(),
2885                                                            event,
2886                                                            window,
2887                                                            cx,
2888                                                        )
2889                                                    },
2890                                                ))
2891                                        }),
2892                                ),
2893                        )
2894                    })
2895            }
2896        }).into_any_element()
2897    }
2898
2899    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
2900        let project_context = self.thread.read(cx).project_context();
2901        let project_context = project_context.borrow();
2902        let Some(project_context) = project_context.as_ref() else {
2903            return div().into_any();
2904        };
2905
2906        let user_rules_text = if project_context.user_rules.is_empty() {
2907            None
2908        } else if project_context.user_rules.len() == 1 {
2909            let user_rules = &project_context.user_rules[0];
2910
2911            match user_rules.title.as_ref() {
2912                Some(title) => Some(format!("Using \"{title}\" user rule")),
2913                None => Some("Using user rule".into()),
2914            }
2915        } else {
2916            Some(format!(
2917                "Using {} user rules",
2918                project_context.user_rules.len()
2919            ))
2920        };
2921
2922        let first_user_rules_id = project_context
2923            .user_rules
2924            .first()
2925            .map(|user_rules| user_rules.uuid.0);
2926
2927        let rules_files = project_context
2928            .worktrees
2929            .iter()
2930            .filter_map(|worktree| worktree.rules_file.as_ref())
2931            .collect::<Vec<_>>();
2932
2933        let rules_file_text = match rules_files.as_slice() {
2934            &[] => None,
2935            &[rules_file] => Some(format!(
2936                "Using project {:?} file",
2937                rules_file.path_in_worktree
2938            )),
2939            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
2940        };
2941
2942        if user_rules_text.is_none() && rules_file_text.is_none() {
2943            return div().into_any();
2944        }
2945
2946        v_flex()
2947            .pt_2()
2948            .px_2p5()
2949            .gap_1()
2950            .when_some(user_rules_text, |parent, user_rules_text| {
2951                parent.child(
2952                    h_flex()
2953                        .w_full()
2954                        .child(
2955                            Icon::new(RULES_ICON)
2956                                .size(IconSize::XSmall)
2957                                .color(Color::Disabled),
2958                        )
2959                        .child(
2960                            Label::new(user_rules_text)
2961                                .size(LabelSize::XSmall)
2962                                .color(Color::Muted)
2963                                .truncate()
2964                                .buffer_font(cx)
2965                                .ml_1p5()
2966                                .mr_0p5(),
2967                        )
2968                        .child(
2969                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
2970                                .shape(ui::IconButtonShape::Square)
2971                                .icon_size(IconSize::XSmall)
2972                                .icon_color(Color::Ignored)
2973                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenPromptLibrary`  keybinding
2974                                .tooltip(Tooltip::text("View User Rules"))
2975                                .on_click(move |_event, window, cx| {
2976                                    window.dispatch_action(
2977                                        Box::new(OpenPromptLibrary {
2978                                            prompt_to_select: first_user_rules_id,
2979                                        }),
2980                                        cx,
2981                                    )
2982                                }),
2983                        ),
2984                )
2985            })
2986            .when_some(rules_file_text, |parent, rules_file_text| {
2987                parent.child(
2988                    h_flex()
2989                        .w_full()
2990                        .child(
2991                            Icon::new(IconName::File)
2992                                .size(IconSize::XSmall)
2993                                .color(Color::Disabled),
2994                        )
2995                        .child(
2996                            Label::new(rules_file_text)
2997                                .size(LabelSize::XSmall)
2998                                .color(Color::Muted)
2999                                .buffer_font(cx)
3000                                .ml_1p5()
3001                                .mr_0p5(),
3002                        )
3003                        .child(
3004                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3005                                .shape(ui::IconButtonShape::Square)
3006                                .icon_size(IconSize::XSmall)
3007                                .icon_color(Color::Ignored)
3008                                .on_click(cx.listener(Self::handle_open_rules))
3009                                .tooltip(Tooltip::text("View Rules")),
3010                        ),
3011                )
3012            })
3013            .into_any()
3014    }
3015
3016    fn handle_allow_tool(
3017        &mut self,
3018        tool_use_id: LanguageModelToolUseId,
3019        _: &ClickEvent,
3020        window: &mut Window,
3021        cx: &mut Context<Self>,
3022    ) {
3023        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3024            .thread
3025            .read(cx)
3026            .pending_tool(&tool_use_id)
3027            .map(|tool_use| tool_use.status.clone())
3028        {
3029            self.thread.update(cx, |thread, cx| {
3030                thread.run_tool(
3031                    c.tool_use_id.clone(),
3032                    c.ui_text.clone(),
3033                    c.input.clone(),
3034                    &c.messages,
3035                    c.tool.clone(),
3036                    Some(window.window_handle()),
3037                    cx,
3038                );
3039            });
3040        }
3041    }
3042
3043    fn handle_deny_tool(
3044        &mut self,
3045        tool_use_id: LanguageModelToolUseId,
3046        tool_name: Arc<str>,
3047        _: &ClickEvent,
3048        window: &mut Window,
3049        cx: &mut Context<Self>,
3050    ) {
3051        let window_handle = window.window_handle();
3052        self.thread.update(cx, |thread, cx| {
3053            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3054        });
3055    }
3056
3057    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3058        let project_context = self.thread.read(cx).project_context();
3059        let project_context = project_context.borrow();
3060        let Some(project_context) = project_context.as_ref() else {
3061            return;
3062        };
3063
3064        let abs_paths = project_context
3065            .worktrees
3066            .iter()
3067            .flat_map(|worktree| worktree.rules_file.as_ref())
3068            .map(|rules_file| rules_file.abs_path.to_path_buf())
3069            .collect::<Vec<_>>();
3070
3071        if let Ok(task) = self.workspace.update(cx, move |workspace, cx| {
3072            // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3073            // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3074            // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3075            workspace.open_paths(abs_paths, OpenOptions::default(), None, window, cx)
3076        }) {
3077            task.detach();
3078        }
3079    }
3080
3081    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3082        for window in self.notifications.drain(..) {
3083            window
3084                .update(cx, |_, window, _| {
3085                    window.remove_window();
3086                })
3087                .ok();
3088
3089            self.notification_subscriptions.remove(&window);
3090        }
3091    }
3092
3093    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3094        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3095            return None;
3096        }
3097
3098        Some(
3099            div()
3100                .occlude()
3101                .id("active-thread-scrollbar")
3102                .on_mouse_move(cx.listener(|_, _, _, cx| {
3103                    cx.notify();
3104                    cx.stop_propagation()
3105                }))
3106                .on_hover(|_, _, cx| {
3107                    cx.stop_propagation();
3108                })
3109                .on_any_mouse_down(|_, _, cx| {
3110                    cx.stop_propagation();
3111                })
3112                .on_mouse_up(
3113                    MouseButton::Left,
3114                    cx.listener(|_, _, _, cx| {
3115                        cx.stop_propagation();
3116                    }),
3117                )
3118                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3119                    cx.notify();
3120                }))
3121                .h_full()
3122                .absolute()
3123                .right_1()
3124                .top_1()
3125                .bottom_0()
3126                .w(px(12.))
3127                .cursor_default()
3128                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3129        )
3130    }
3131
3132    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3133        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3134        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3135            cx.background_executor()
3136                .timer(SCROLLBAR_SHOW_INTERVAL)
3137                .await;
3138            thread
3139                .update(cx, |thread, cx| {
3140                    if !thread.scrollbar_state.is_dragging() {
3141                        thread.show_scrollbar = false;
3142                        cx.notify();
3143                    }
3144                })
3145                .log_err();
3146        }))
3147    }
3148}
3149
3150pub enum ActiveThreadEvent {
3151    EditingMessageTokenCountChanged,
3152}
3153
3154impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3155
3156impl Render for ActiveThread {
3157    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3158        v_flex()
3159            .size_full()
3160            .relative()
3161            .on_mouse_move(cx.listener(|this, _, _, cx| {
3162                this.show_scrollbar = true;
3163                this.hide_scrollbar_later(cx);
3164                cx.notify();
3165            }))
3166            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3167                this.show_scrollbar = true;
3168                this.hide_scrollbar_later(cx);
3169                cx.notify();
3170            }))
3171            .on_mouse_up(
3172                MouseButton::Left,
3173                cx.listener(|this, _, _, cx| {
3174                    this.hide_scrollbar_later(cx);
3175                }),
3176            )
3177            .child(list(self.list_state.clone()).flex_grow())
3178            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3179                this.child(scrollbar)
3180            })
3181    }
3182}
3183
3184pub(crate) fn open_context(
3185    id: ContextId,
3186    context_store: Entity<ContextStore>,
3187    workspace: Entity<Workspace>,
3188    window: &mut Window,
3189    cx: &mut App,
3190) {
3191    let Some(context) = context_store.read(cx).context_for_id(id) else {
3192        return;
3193    };
3194
3195    match context {
3196        AssistantContext::File(file_context) => {
3197            if let Some(project_path) = file_context.context_buffer.buffer.read(cx).project_path(cx)
3198            {
3199                workspace.update(cx, |workspace, cx| {
3200                    workspace
3201                        .open_path(project_path, None, true, window, cx)
3202                        .detach_and_log_err(cx);
3203                });
3204            }
3205        }
3206        AssistantContext::Directory(directory_context) => {
3207            let entry_id = directory_context.entry_id;
3208            workspace.update(cx, |workspace, cx| {
3209                workspace.project().update(cx, |_project, cx| {
3210                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3211                })
3212            })
3213        }
3214        AssistantContext::Symbol(symbol_context) => {
3215            if let Some(project_path) = symbol_context
3216                .context_symbol
3217                .buffer
3218                .read(cx)
3219                .project_path(cx)
3220            {
3221                let snapshot = symbol_context.context_symbol.buffer.read(cx).snapshot();
3222                let target_position = symbol_context
3223                    .context_symbol
3224                    .id
3225                    .range
3226                    .start
3227                    .to_point(&snapshot);
3228
3229                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3230                    .detach();
3231            }
3232        }
3233        AssistantContext::Selection(selection_context) => {
3234            if let Some(project_path) = selection_context
3235                .context_buffer
3236                .buffer
3237                .read(cx)
3238                .project_path(cx)
3239            {
3240                let snapshot = selection_context.context_buffer.buffer.read(cx).snapshot();
3241                let target_position = selection_context.range.start.to_point(&snapshot);
3242
3243                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3244                    .detach();
3245            }
3246        }
3247        AssistantContext::FetchedUrl(fetched_url_context) => {
3248            cx.open_url(&fetched_url_context.url);
3249        }
3250        AssistantContext::Thread(thread_context) => {
3251            let thread_id = thread_context.thread.read(cx).id().clone();
3252            workspace.update(cx, |workspace, cx| {
3253                if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3254                    panel.update(cx, |panel, cx| {
3255                        panel
3256                            .open_thread(&thread_id, window, cx)
3257                            .detach_and_log_err(cx)
3258                    });
3259                }
3260            })
3261        }
3262        AssistantContext::Rules(rules_context) => window.dispatch_action(
3263            Box::new(OpenPromptLibrary {
3264                prompt_to_select: Some(rules_context.prompt_id.0),
3265            }),
3266            cx,
3267        ),
3268        AssistantContext::Image(_) => {}
3269    }
3270}
3271
3272fn open_editor_at_position(
3273    project_path: project::ProjectPath,
3274    target_position: Point,
3275    workspace: &Entity<Workspace>,
3276    window: &mut Window,
3277    cx: &mut App,
3278) -> Task<()> {
3279    let open_task = workspace.update(cx, |workspace, cx| {
3280        workspace.open_path(project_path, None, true, window, cx)
3281    });
3282    window.spawn(cx, async move |cx| {
3283        if let Some(active_editor) = open_task
3284            .await
3285            .log_err()
3286            .and_then(|item| item.downcast::<Editor>())
3287        {
3288            active_editor
3289                .downgrade()
3290                .update_in(cx, |editor, window, cx| {
3291                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3292                })
3293                .log_err();
3294        }
3295    })
3296}