active_thread.rs

   1use crate::context::{AgentContextHandle, RULES_ICON};
   2use crate::context_picker::{ContextPicker, MentionLink};
   3use crate::context_store::ContextStore;
   4use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   5use crate::message_editor::insert_message_creases;
   6use crate::thread::{
   7    LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, Thread, ThreadError,
   8    ThreadEvent, ThreadFeedback,
   9};
  10use crate::thread_store::{RulesLoadingError, ThreadStore};
  11use crate::tool_use::{PendingToolUseStatus, ToolUse};
  12use crate::ui::{
  13    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  14};
  15use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  16use anyhow::Context as _;
  17use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  18use assistant_tool::ToolUseStatus;
  19use collections::{HashMap, HashSet};
  20use editor::actions::{MoveUp, Paste};
  21use editor::scroll::Autoscroll;
  22use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  23use gpui::{
  24    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  25    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  26    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  27    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  28    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  29    pulsating_between,
  30};
  31use language::{Buffer, Language, LanguageRegistry};
  32use language_model::{
  33    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, RequestUsage, Role,
  34    StopReason,
  35};
  36use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  37use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  38use project::{ProjectEntryId, ProjectItem as _};
  39use rope::Point;
  40use settings::{Settings as _, update_settings_file};
  41use std::ffi::OsStr;
  42use std::path::Path;
  43use std::rc::Rc;
  44use std::sync::Arc;
  45use std::time::Duration;
  46use text::ToPoint;
  47use theme::ThemeSettings;
  48use ui::{
  49    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  50    Tooltip, prelude::*,
  51};
  52use util::ResultExt as _;
  53use util::markdown::MarkdownCodeBlock;
  54use workspace::Workspace;
  55use zed_actions::assistant::OpenRulesLibrary;
  56
  57pub struct ActiveThread {
  58    context_store: Entity<ContextStore>,
  59    language_registry: Arc<LanguageRegistry>,
  60    thread_store: Entity<ThreadStore>,
  61    thread: Entity<Thread>,
  62    workspace: WeakEntity<Workspace>,
  63    save_thread_task: Option<Task<()>>,
  64    messages: Vec<MessageId>,
  65    list_state: ListState,
  66    scrollbar_state: ScrollbarState,
  67    show_scrollbar: bool,
  68    hide_scrollbar_task: Option<Task<()>>,
  69    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  70    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  71    editing_message: Option<(MessageId, EditingMessageState)>,
  72    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  73    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  74    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  75    last_error: Option<ThreadError>,
  76    last_usage: Option<RequestUsage>,
  77    notifications: Vec<WindowHandle<AgentNotification>>,
  78    copied_code_block_ids: HashSet<(MessageId, usize)>,
  79    _subscriptions: Vec<Subscription>,
  80    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  81    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  82    _load_edited_message_context_task: Option<Task<()>>,
  83}
  84
  85struct RenderedMessage {
  86    language_registry: Arc<LanguageRegistry>,
  87    segments: Vec<RenderedMessageSegment>,
  88}
  89
  90#[derive(Clone)]
  91struct RenderedToolUse {
  92    label: Entity<Markdown>,
  93    input: Entity<Markdown>,
  94    output: Entity<Markdown>,
  95}
  96
  97impl RenderedMessage {
  98    fn from_segments(
  99        segments: &[MessageSegment],
 100        language_registry: Arc<LanguageRegistry>,
 101        cx: &mut App,
 102    ) -> Self {
 103        let mut this = Self {
 104            language_registry,
 105            segments: Vec::with_capacity(segments.len()),
 106        };
 107        for segment in segments {
 108            this.push_segment(segment, cx);
 109        }
 110        this
 111    }
 112
 113    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 114        if let Some(RenderedMessageSegment::Thinking {
 115            content,
 116            scroll_handle,
 117        }) = self.segments.last_mut()
 118        {
 119            content.update(cx, |markdown, cx| {
 120                markdown.append(text, cx);
 121            });
 122            scroll_handle.scroll_to_bottom();
 123        } else {
 124            self.segments.push(RenderedMessageSegment::Thinking {
 125                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 126                scroll_handle: ScrollHandle::default(),
 127            });
 128        }
 129    }
 130
 131    fn append_text(&mut self, text: &String, cx: &mut App) {
 132        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 133            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 134        } else {
 135            self.segments
 136                .push(RenderedMessageSegment::Text(parse_markdown(
 137                    SharedString::from(text),
 138                    self.language_registry.clone(),
 139                    cx,
 140                )));
 141        }
 142    }
 143
 144    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 145        match segment {
 146            MessageSegment::Thinking { text, .. } => {
 147                self.segments.push(RenderedMessageSegment::Thinking {
 148                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 149                    scroll_handle: ScrollHandle::default(),
 150                })
 151            }
 152            MessageSegment::Text(text) => {
 153                self.segments
 154                    .push(RenderedMessageSegment::Text(parse_markdown(
 155                        text.into(),
 156                        self.language_registry.clone(),
 157                        cx,
 158                    )))
 159            }
 160            MessageSegment::RedactedThinking(_) => {}
 161        };
 162    }
 163}
 164
 165enum RenderedMessageSegment {
 166    Thinking {
 167        content: Entity<Markdown>,
 168        scroll_handle: ScrollHandle,
 169    },
 170    Text(Entity<Markdown>),
 171}
 172
 173fn parse_markdown(
 174    text: SharedString,
 175    language_registry: Arc<LanguageRegistry>,
 176    cx: &mut App,
 177) -> Entity<Markdown> {
 178    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 179}
 180
 181fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 182    let theme_settings = ThemeSettings::get_global(cx);
 183    let colors = cx.theme().colors();
 184    let ui_font_size = TextSize::Default.rems(cx);
 185    let buffer_font_size = TextSize::Small.rems(cx);
 186    let mut text_style = window.text_style();
 187
 188    text_style.refine(&TextStyleRefinement {
 189        font_family: Some(theme_settings.ui_font.family.clone()),
 190        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 191        font_features: Some(theme_settings.ui_font.features.clone()),
 192        font_size: Some(ui_font_size.into()),
 193        color: Some(cx.theme().colors().text),
 194        ..Default::default()
 195    });
 196
 197    MarkdownStyle {
 198        base_text_style: text_style.clone(),
 199        syntax: cx.theme().syntax().clone(),
 200        selection_background_color: cx.theme().players().local().selection,
 201        code_block_overflow_x_scroll: true,
 202        table_overflow_x_scroll: true,
 203        heading_level_styles: Some(HeadingLevelStyles {
 204            h1: Some(TextStyleRefinement {
 205                font_size: Some(rems(1.15).into()),
 206                ..Default::default()
 207            }),
 208            h2: Some(TextStyleRefinement {
 209                font_size: Some(rems(1.1).into()),
 210                ..Default::default()
 211            }),
 212            h3: Some(TextStyleRefinement {
 213                font_size: Some(rems(1.05).into()),
 214                ..Default::default()
 215            }),
 216            h4: Some(TextStyleRefinement {
 217                font_size: Some(rems(1.).into()),
 218                ..Default::default()
 219            }),
 220            h5: Some(TextStyleRefinement {
 221                font_size: Some(rems(0.95).into()),
 222                ..Default::default()
 223            }),
 224            h6: Some(TextStyleRefinement {
 225                font_size: Some(rems(0.875).into()),
 226                ..Default::default()
 227            }),
 228        }),
 229        code_block: StyleRefinement {
 230            padding: EdgesRefinement {
 231                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 232                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 233                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 234                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235            },
 236            background: Some(colors.editor_background.into()),
 237            text: Some(TextStyleRefinement {
 238                font_family: Some(theme_settings.buffer_font.family.clone()),
 239                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 240                font_features: Some(theme_settings.buffer_font.features.clone()),
 241                font_size: Some(buffer_font_size.into()),
 242                ..Default::default()
 243            }),
 244            ..Default::default()
 245        },
 246        inline_code: TextStyleRefinement {
 247            font_family: Some(theme_settings.buffer_font.family.clone()),
 248            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 249            font_features: Some(theme_settings.buffer_font.features.clone()),
 250            font_size: Some(buffer_font_size.into()),
 251            background_color: Some(colors.editor_foreground.opacity(0.08)),
 252            ..Default::default()
 253        },
 254        link: TextStyleRefinement {
 255            background_color: Some(colors.editor_foreground.opacity(0.025)),
 256            underline: Some(UnderlineStyle {
 257                color: Some(colors.text_accent.opacity(0.5)),
 258                thickness: px(1.),
 259                ..Default::default()
 260            }),
 261            ..Default::default()
 262        },
 263        link_callback: Some(Rc::new(move |url, cx| {
 264            if MentionLink::is_valid(url) {
 265                let colors = cx.theme().colors();
 266                Some(TextStyleRefinement {
 267                    background_color: Some(colors.element_background),
 268                    ..Default::default()
 269                })
 270            } else {
 271                None
 272            }
 273        })),
 274        ..Default::default()
 275    }
 276}
 277
 278fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 279    let theme_settings = ThemeSettings::get_global(cx);
 280    let colors = cx.theme().colors();
 281    let ui_font_size = TextSize::Default.rems(cx);
 282    let buffer_font_size = TextSize::Small.rems(cx);
 283    let mut text_style = window.text_style();
 284
 285    text_style.refine(&TextStyleRefinement {
 286        font_family: Some(theme_settings.ui_font.family.clone()),
 287        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 288        font_features: Some(theme_settings.ui_font.features.clone()),
 289        font_size: Some(ui_font_size.into()),
 290        color: Some(cx.theme().colors().text),
 291        ..Default::default()
 292    });
 293
 294    MarkdownStyle {
 295        base_text_style: text_style,
 296        syntax: cx.theme().syntax().clone(),
 297        selection_background_color: cx.theme().players().local().selection,
 298        code_block_overflow_x_scroll: true,
 299        code_block: StyleRefinement {
 300            margin: EdgesRefinement::default(),
 301            padding: EdgesRefinement::default(),
 302            background: Some(colors.editor_background.into()),
 303            border_color: None,
 304            border_widths: EdgesRefinement::default(),
 305            text: Some(TextStyleRefinement {
 306                font_family: Some(theme_settings.buffer_font.family.clone()),
 307                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 308                font_features: Some(theme_settings.buffer_font.features.clone()),
 309                font_size: Some(buffer_font_size.into()),
 310                ..Default::default()
 311            }),
 312            ..Default::default()
 313        },
 314        inline_code: TextStyleRefinement {
 315            font_family: Some(theme_settings.buffer_font.family.clone()),
 316            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 317            font_features: Some(theme_settings.buffer_font.features.clone()),
 318            font_size: Some(TextSize::XSmall.rems(cx).into()),
 319            ..Default::default()
 320        },
 321        heading: StyleRefinement {
 322            text: Some(TextStyleRefinement {
 323                font_size: Some(ui_font_size.into()),
 324                ..Default::default()
 325            }),
 326            ..Default::default()
 327        },
 328        ..Default::default()
 329    }
 330}
 331
 332const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 333
 334fn render_markdown_code_block(
 335    message_id: MessageId,
 336    ix: usize,
 337    kind: &CodeBlockKind,
 338    parsed_markdown: &ParsedMarkdown,
 339    metadata: CodeBlockMetadata,
 340    active_thread: Entity<ActiveThread>,
 341    workspace: WeakEntity<Workspace>,
 342    _window: &Window,
 343    cx: &App,
 344) -> Div {
 345    let label = match kind {
 346        CodeBlockKind::Indented => None,
 347        CodeBlockKind::Fenced => Some(
 348            h_flex()
 349                .gap_1()
 350                .child(
 351                    Icon::new(IconName::Code)
 352                        .color(Color::Muted)
 353                        .size(IconSize::XSmall),
 354                )
 355                .child(Label::new("untitled").size(LabelSize::Small))
 356                .into_any_element(),
 357        ),
 358        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 359            parsed_markdown.languages_by_name.get(raw_language_name),
 360            raw_language_name.clone(),
 361            cx,
 362        )),
 363        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 364            // We tell the model to use /dev/null for the path instead of using ```language
 365            // because otherwise it consistently fails to use code citations.
 366            if path_range.path.starts_with("/dev/null") {
 367                let ext = path_range
 368                    .path
 369                    .extension()
 370                    .and_then(OsStr::to_str)
 371                    .map(|str| SharedString::new(str.to_string()))
 372                    .unwrap_or_default();
 373
 374                render_code_language(
 375                    parsed_markdown
 376                        .languages_by_path
 377                        .get(&path_range.path)
 378                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 379                    ext,
 380                    cx,
 381                )
 382            } else {
 383                let content = if let Some(parent) = path_range.path.parent() {
 384                    h_flex()
 385                        .ml_1()
 386                        .gap_1()
 387                        .child(
 388                            Label::new(file_name.to_string_lossy().to_string())
 389                                .size(LabelSize::Small),
 390                        )
 391                        .child(
 392                            Label::new(parent.to_string_lossy().to_string())
 393                                .color(Color::Muted)
 394                                .size(LabelSize::Small),
 395                        )
 396                        .into_any_element()
 397                } else {
 398                    Label::new(path_range.path.to_string_lossy().to_string())
 399                        .size(LabelSize::Small)
 400                        .ml_1()
 401                        .into_any_element()
 402                };
 403
 404                h_flex()
 405                    .id(("code-block-header-label", ix))
 406                    .w_full()
 407                    .max_w_full()
 408                    .px_1()
 409                    .gap_0p5()
 410                    .cursor_pointer()
 411                    .rounded_sm()
 412                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 413                    .tooltip(Tooltip::text("Jump to File"))
 414                    .child(
 415                        h_flex()
 416                            .gap_0p5()
 417                            .children(
 418                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 419                                    .map(Icon::from_path)
 420                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 421                            )
 422                            .child(content)
 423                            .child(
 424                                Icon::new(IconName::ArrowUpRight)
 425                                    .size(IconSize::XSmall)
 426                                    .color(Color::Ignored),
 427                            ),
 428                    )
 429                    .on_click({
 430                        let path_range = path_range.clone();
 431                        move |_, window, cx| {
 432                            workspace
 433                                .update(cx, {
 434                                    |workspace, cx| {
 435                                        let Some(project_path) = workspace
 436                                            .project()
 437                                            .read(cx)
 438                                            .find_project_path(&path_range.path, cx)
 439                                        else {
 440                                            return;
 441                                        };
 442                                        let Some(target) = path_range.range.as_ref().map(|range| {
 443                                            Point::new(
 444                                                // Line number is 1-based
 445                                                range.start.line.saturating_sub(1),
 446                                                range.start.col.unwrap_or(0),
 447                                            )
 448                                        }) else {
 449                                            return;
 450                                        };
 451                                        let open_task = workspace.open_path(
 452                                            project_path,
 453                                            None,
 454                                            true,
 455                                            window,
 456                                            cx,
 457                                        );
 458                                        window
 459                                            .spawn(cx, async move |cx| {
 460                                                let item = open_task.await?;
 461                                                if let Some(active_editor) =
 462                                                    item.downcast::<Editor>()
 463                                                {
 464                                                    active_editor
 465                                                        .update_in(cx, |editor, window, cx| {
 466                                                            editor.go_to_singleton_buffer_point(
 467                                                                target, window, cx,
 468                                                            );
 469                                                        })
 470                                                        .ok();
 471                                                }
 472                                                anyhow::Ok(())
 473                                            })
 474                                            .detach_and_log_err(cx);
 475                                    }
 476                                })
 477                                .ok();
 478                        }
 479                    })
 480                    .into_any_element()
 481            }
 482        }),
 483    };
 484
 485    let codeblock_was_copied = active_thread
 486        .read(cx)
 487        .copied_code_block_ids
 488        .contains(&(message_id, ix));
 489
 490    let is_expanded = active_thread
 491        .read(cx)
 492        .expanded_code_blocks
 493        .get(&(message_id, ix))
 494        .copied()
 495        .unwrap_or(true);
 496
 497    let codeblock_header_bg = cx
 498        .theme()
 499        .colors()
 500        .element_background
 501        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 502
 503    let codeblock_header = h_flex()
 504        .py_1()
 505        .pl_1p5()
 506        .pr_1()
 507        .gap_1()
 508        .justify_between()
 509        .border_b_1()
 510        .border_color(cx.theme().colors().border.opacity(0.6))
 511        .bg(codeblock_header_bg)
 512        .rounded_t_md()
 513        .children(label)
 514        .child(
 515            h_flex()
 516                .visible_on_hover("codeblock_container")
 517                .gap_1()
 518                .child(
 519                    IconButton::new(
 520                        ("copy-markdown-code", ix),
 521                        if codeblock_was_copied {
 522                            IconName::Check
 523                        } else {
 524                            IconName::Copy
 525                        },
 526                    )
 527                    .icon_color(Color::Muted)
 528                    .shape(ui::IconButtonShape::Square)
 529                    .tooltip(Tooltip::text("Copy Code"))
 530                    .on_click({
 531                        let active_thread = active_thread.clone();
 532                        let parsed_markdown = parsed_markdown.clone();
 533                        let code_block_range = metadata.content_range.clone();
 534                        move |_event, _window, cx| {
 535                            active_thread.update(cx, |this, cx| {
 536                                this.copied_code_block_ids.insert((message_id, ix));
 537
 538                                let code =
 539                                    parsed_markdown.source()[code_block_range.clone()].to_string();
 540                                cx.write_to_clipboard(ClipboardItem::new_string(code));
 541
 542                                cx.spawn(async move |this, cx| {
 543                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 544
 545                                    cx.update(|cx| {
 546                                        this.update(cx, |this, cx| {
 547                                            this.copied_code_block_ids.remove(&(message_id, ix));
 548                                            cx.notify();
 549                                        })
 550                                    })
 551                                    .ok();
 552                                })
 553                                .detach();
 554                            });
 555                        }
 556                    }),
 557                )
 558                .when(
 559                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 560                    |header| {
 561                        header.child(
 562                            IconButton::new(
 563                                ("expand-collapse-code", ix),
 564                                if is_expanded {
 565                                    IconName::ChevronUp
 566                                } else {
 567                                    IconName::ChevronDown
 568                                },
 569                            )
 570                            .icon_color(Color::Muted)
 571                            .shape(ui::IconButtonShape::Square)
 572                            .tooltip(Tooltip::text(if is_expanded {
 573                                "Collapse Code"
 574                            } else {
 575                                "Expand Code"
 576                            }))
 577                            .on_click({
 578                                let active_thread = active_thread.clone();
 579                                move |_event, _window, cx| {
 580                                    active_thread.update(cx, |this, cx| {
 581                                        let is_expanded = this
 582                                            .expanded_code_blocks
 583                                            .entry((message_id, ix))
 584                                            .or_insert(true);
 585                                        *is_expanded = !*is_expanded;
 586                                        cx.notify();
 587                                    });
 588                                }
 589                            }),
 590                        )
 591                    },
 592                ),
 593        );
 594
 595    v_flex()
 596        .group("codeblock_container")
 597        .my_2()
 598        .overflow_hidden()
 599        .rounded_lg()
 600        .border_1()
 601        .border_color(cx.theme().colors().border.opacity(0.6))
 602        .bg(cx.theme().colors().editor_background)
 603        .child(codeblock_header)
 604        .when(
 605            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 606            |this| {
 607                if is_expanded {
 608                    this.h_full()
 609                } else {
 610                    this.max_h_80()
 611                }
 612            },
 613        )
 614}
 615
 616fn render_code_language(
 617    language: Option<&Arc<Language>>,
 618    name_fallback: SharedString,
 619    cx: &App,
 620) -> AnyElement {
 621    let icon_path = language.and_then(|language| {
 622        language
 623            .config()
 624            .matcher
 625            .path_suffixes
 626            .iter()
 627            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 628            .map(Icon::from_path)
 629    });
 630
 631    let language_label = language
 632        .map(|language| language.name().into())
 633        .unwrap_or(name_fallback);
 634
 635    h_flex()
 636        .gap_1()
 637        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 638        .child(Label::new(language_label).size(LabelSize::Small))
 639        .into_any_element()
 640}
 641
 642fn open_markdown_link(
 643    text: SharedString,
 644    workspace: WeakEntity<Workspace>,
 645    window: &mut Window,
 646    cx: &mut App,
 647) {
 648    let Some(workspace) = workspace.upgrade() else {
 649        cx.open_url(&text);
 650        return;
 651    };
 652
 653    match MentionLink::try_parse(&text, &workspace, cx) {
 654        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 655            if entry.is_dir() {
 656                workspace.project().update(cx, |_, cx| {
 657                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 658                })
 659            } else {
 660                workspace
 661                    .open_path(path, None, true, window, cx)
 662                    .detach_and_log_err(cx);
 663            }
 664        }),
 665        Some(MentionLink::Symbol(path, symbol_name)) => {
 666            let open_task = workspace.update(cx, |workspace, cx| {
 667                workspace.open_path(path, None, true, window, cx)
 668            });
 669            window
 670                .spawn(cx, async move |cx| {
 671                    let active_editor = open_task
 672                        .await?
 673                        .downcast::<Editor>()
 674                        .context("Item is not an editor")?;
 675                    active_editor.update_in(cx, |editor, window, cx| {
 676                        let symbol_range = editor
 677                            .buffer()
 678                            .read(cx)
 679                            .snapshot(cx)
 680                            .outline(None)
 681                            .and_then(|outline| {
 682                                outline
 683                                    .find_most_similar(&symbol_name)
 684                                    .map(|(_, item)| item.range.clone())
 685                            })
 686                            .context("Could not find matching symbol")?;
 687
 688                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 689                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 690                        });
 691                        anyhow::Ok(())
 692                    })
 693                })
 694                .detach_and_log_err(cx);
 695        }
 696        Some(MentionLink::Selection(path, line_range)) => {
 697            let open_task = workspace.update(cx, |workspace, cx| {
 698                workspace.open_path(path, None, true, window, cx)
 699            });
 700            window
 701                .spawn(cx, async move |cx| {
 702                    let active_editor = open_task
 703                        .await?
 704                        .downcast::<Editor>()
 705                        .context("Item is not an editor")?;
 706                    active_editor.update_in(cx, |editor, window, cx| {
 707                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 708                            s.select_ranges([Point::new(line_range.start as u32, 0)
 709                                ..Point::new(line_range.start as u32, 0)])
 710                        });
 711                        anyhow::Ok(())
 712                    })
 713                })
 714                .detach_and_log_err(cx);
 715        }
 716        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 717            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 718                panel.update(cx, |panel, cx| {
 719                    panel
 720                        .open_thread_by_id(&thread_id, window, cx)
 721                        .detach_and_log_err(cx)
 722                });
 723            }
 724        }),
 725        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 726        Some(MentionLink::Rules(prompt_id)) => window.dispatch_action(
 727            Box::new(OpenRulesLibrary {
 728                prompt_to_select: Some(prompt_id.0),
 729            }),
 730            cx,
 731        ),
 732        None => cx.open_url(&text),
 733    }
 734}
 735
 736struct EditingMessageState {
 737    editor: Entity<Editor>,
 738    context_strip: Entity<ContextStrip>,
 739    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 740    last_estimated_token_count: Option<usize>,
 741    _subscriptions: [Subscription; 2],
 742    _update_token_count_task: Option<Task<()>>,
 743}
 744
 745impl ActiveThread {
 746    pub fn new(
 747        thread: Entity<Thread>,
 748        thread_store: Entity<ThreadStore>,
 749        context_store: Entity<ContextStore>,
 750        language_registry: Arc<LanguageRegistry>,
 751        workspace: WeakEntity<Workspace>,
 752        window: &mut Window,
 753        cx: &mut Context<Self>,
 754    ) -> Self {
 755        let subscriptions = vec![
 756            cx.observe(&thread, |_, _, cx| cx.notify()),
 757            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 758            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 759        ];
 760
 761        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 762            let this = cx.entity().downgrade();
 763            move |ix, window: &mut Window, cx: &mut App| {
 764                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 765                    .unwrap()
 766            }
 767        });
 768
 769        let mut this = Self {
 770            language_registry,
 771            thread_store,
 772            context_store,
 773            thread: thread.clone(),
 774            workspace,
 775            save_thread_task: None,
 776            messages: Vec::new(),
 777            rendered_messages_by_id: HashMap::default(),
 778            rendered_tool_uses: HashMap::default(),
 779            expanded_tool_uses: HashMap::default(),
 780            expanded_thinking_segments: HashMap::default(),
 781            expanded_code_blocks: HashMap::default(),
 782            list_state: list_state.clone(),
 783            scrollbar_state: ScrollbarState::new(list_state),
 784            show_scrollbar: false,
 785            hide_scrollbar_task: None,
 786            editing_message: None,
 787            last_error: None,
 788            last_usage: None,
 789            copied_code_block_ids: HashSet::default(),
 790            notifications: Vec::new(),
 791            _subscriptions: subscriptions,
 792            notification_subscriptions: HashMap::default(),
 793            open_feedback_editors: HashMap::default(),
 794            _load_edited_message_context_task: None,
 795        };
 796
 797        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 798            this.push_message(&message.id, &message.segments, window, cx);
 799
 800            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 801                this.render_tool_use_markdown(
 802                    tool_use.id.clone(),
 803                    tool_use.ui_text.clone(),
 804                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 805                    tool_use.status.text(),
 806                    cx,
 807                );
 808            }
 809        }
 810
 811        this
 812    }
 813
 814    pub fn thread(&self) -> &Entity<Thread> {
 815        &self.thread
 816    }
 817
 818    pub fn is_empty(&self) -> bool {
 819        self.messages.is_empty()
 820    }
 821
 822    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 823        self.thread.read(cx).summary()
 824    }
 825
 826    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 827        self.thread.read(cx).summary_or_default()
 828    }
 829
 830    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 831        self.last_error.take();
 832        self.thread.update(cx, |thread, cx| {
 833            thread.cancel_last_completion(Some(window.window_handle()), cx)
 834        })
 835    }
 836
 837    pub fn last_error(&self) -> Option<ThreadError> {
 838        self.last_error.clone()
 839    }
 840
 841    pub fn clear_last_error(&mut self) {
 842        self.last_error.take();
 843    }
 844
 845    pub fn last_usage(&self) -> Option<RequestUsage> {
 846        self.last_usage
 847    }
 848
 849    /// Returns the editing message id and the estimated token count in the content
 850    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 851        self.editing_message
 852            .as_ref()
 853            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 854    }
 855
 856    fn push_message(
 857        &mut self,
 858        id: &MessageId,
 859        segments: &[MessageSegment],
 860        _window: &mut Window,
 861        cx: &mut Context<Self>,
 862    ) {
 863        let old_len = self.messages.len();
 864        self.messages.push(*id);
 865        self.list_state.splice(old_len..old_len, 1);
 866
 867        let rendered_message =
 868            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 869        self.rendered_messages_by_id.insert(*id, rendered_message);
 870    }
 871
 872    fn edited_message(
 873        &mut self,
 874        id: &MessageId,
 875        segments: &[MessageSegment],
 876        _window: &mut Window,
 877        cx: &mut Context<Self>,
 878    ) {
 879        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 880            return;
 881        };
 882        self.list_state.splice(index..index + 1, 1);
 883        let rendered_message =
 884            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 885        self.rendered_messages_by_id.insert(*id, rendered_message);
 886    }
 887
 888    fn deleted_message(&mut self, id: &MessageId) {
 889        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 890            return;
 891        };
 892        self.messages.remove(index);
 893        self.list_state.splice(index..index + 1, 0);
 894        self.rendered_messages_by_id.remove(id);
 895    }
 896
 897    fn render_tool_use_markdown(
 898        &mut self,
 899        tool_use_id: LanguageModelToolUseId,
 900        tool_label: impl Into<SharedString>,
 901        tool_input: &str,
 902        tool_output: SharedString,
 903        cx: &mut Context<Self>,
 904    ) {
 905        let rendered = self
 906            .rendered_tool_uses
 907            .entry(tool_use_id.clone())
 908            .or_insert_with(|| RenderedToolUse {
 909                label: cx.new(|cx| {
 910                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 911                }),
 912                input: cx.new(|cx| {
 913                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 914                }),
 915                output: cx.new(|cx| {
 916                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 917                }),
 918            });
 919
 920        rendered.label.update(cx, |this, cx| {
 921            this.replace(tool_label, cx);
 922        });
 923        rendered.input.update(cx, |this, cx| {
 924            this.replace(
 925                MarkdownCodeBlock {
 926                    tag: "json",
 927                    text: tool_input,
 928                }
 929                .to_string(),
 930                cx,
 931            );
 932        });
 933        rendered.output.update(cx, |this, cx| {
 934            this.replace(tool_output, cx);
 935        });
 936    }
 937
 938    fn handle_thread_event(
 939        &mut self,
 940        _thread: &Entity<Thread>,
 941        event: &ThreadEvent,
 942        window: &mut Window,
 943        cx: &mut Context<Self>,
 944    ) {
 945        match event {
 946            ThreadEvent::CancelEditing => {
 947                if self.editing_message.is_some() {
 948                    self.cancel_editing_message(&menu::Cancel, window, cx);
 949                }
 950            }
 951            ThreadEvent::ShowError(error) => {
 952                self.last_error = Some(error.clone());
 953            }
 954            ThreadEvent::UsageUpdated(usage) => {
 955                self.last_usage = Some(*usage);
 956            }
 957            ThreadEvent::StreamedCompletion
 958            | ThreadEvent::SummaryGenerated
 959            | ThreadEvent::SummaryChanged => {
 960                self.save_thread(cx);
 961            }
 962            ThreadEvent::Stopped(reason) => match reason {
 963                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 964                    let thread = self.thread.read(cx);
 965                    self.show_notification(
 966                        if thread.used_tools_since_last_user_message() {
 967                            "Finished running tools"
 968                        } else {
 969                            "New message"
 970                        },
 971                        IconName::ZedAssistant,
 972                        window,
 973                        cx,
 974                    );
 975                }
 976                _ => {}
 977            },
 978            ThreadEvent::ToolConfirmationNeeded => {
 979                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 980            }
 981            ThreadEvent::StreamedAssistantText(message_id, text) => {
 982                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 983                    rendered_message.append_text(text, cx);
 984                }
 985            }
 986            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
 987                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
 988                    rendered_message.append_thinking(text, cx);
 989                }
 990            }
 991            ThreadEvent::MessageAdded(message_id) => {
 992                if let Some(message_segments) = self
 993                    .thread
 994                    .read(cx)
 995                    .message(*message_id)
 996                    .map(|message| message.segments.clone())
 997                {
 998                    self.push_message(message_id, &message_segments, window, cx);
 999                }
1000
1001                self.save_thread(cx);
1002                cx.notify();
1003            }
1004            ThreadEvent::MessageEdited(message_id) => {
1005                if let Some(message_segments) = self
1006                    .thread
1007                    .read(cx)
1008                    .message(*message_id)
1009                    .map(|message| message.segments.clone())
1010                {
1011                    self.edited_message(message_id, &message_segments, window, cx);
1012                }
1013
1014                self.save_thread(cx);
1015                cx.notify();
1016            }
1017            ThreadEvent::MessageDeleted(message_id) => {
1018                self.deleted_message(message_id);
1019                self.save_thread(cx);
1020                cx.notify();
1021            }
1022            ThreadEvent::UsePendingTools { tool_uses } => {
1023                for tool_use in tool_uses {
1024                    self.render_tool_use_markdown(
1025                        tool_use.id.clone(),
1026                        tool_use.ui_text.clone(),
1027                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1028                        "".into(),
1029                        cx,
1030                    );
1031                }
1032            }
1033            ThreadEvent::StreamedToolUse {
1034                tool_use_id,
1035                ui_text,
1036                input,
1037            } => {
1038                self.render_tool_use_markdown(
1039                    tool_use_id.clone(),
1040                    ui_text.clone(),
1041                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1042                    "".into(),
1043                    cx,
1044                );
1045            }
1046            ThreadEvent::ToolFinished {
1047                pending_tool_use, ..
1048            } => {
1049                if let Some(tool_use) = pending_tool_use {
1050                    self.render_tool_use_markdown(
1051                        tool_use.id.clone(),
1052                        tool_use.ui_text.clone(),
1053                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1054                        self.thread
1055                            .read(cx)
1056                            .output_for_tool(&tool_use.id)
1057                            .map(|output| output.clone().into())
1058                            .unwrap_or("".into()),
1059                        cx,
1060                    );
1061                }
1062            }
1063            ThreadEvent::CheckpointChanged => cx.notify(),
1064            ThreadEvent::ReceivedTextChunk => {}
1065            ThreadEvent::InvalidToolInput {
1066                tool_use_id,
1067                ui_text,
1068                invalid_input_json,
1069            } => {
1070                self.render_tool_use_markdown(
1071                    tool_use_id.clone(),
1072                    ui_text,
1073                    invalid_input_json,
1074                    self.thread
1075                        .read(cx)
1076                        .output_for_tool(tool_use_id)
1077                        .map(|output| output.clone().into())
1078                        .unwrap_or("".into()),
1079                    cx,
1080                );
1081            }
1082        }
1083    }
1084
1085    fn handle_rules_loading_error(
1086        &mut self,
1087        _thread_store: Entity<ThreadStore>,
1088        error: &RulesLoadingError,
1089        cx: &mut Context<Self>,
1090    ) {
1091        self.last_error = Some(ThreadError::Message {
1092            header: "Error loading rules file".into(),
1093            message: error.message.clone(),
1094        });
1095        cx.notify();
1096    }
1097
1098    fn show_notification(
1099        &mut self,
1100        caption: impl Into<SharedString>,
1101        icon: IconName,
1102        window: &mut Window,
1103        cx: &mut Context<ActiveThread>,
1104    ) {
1105        if window.is_window_active() || !self.notifications.is_empty() {
1106            return;
1107        }
1108
1109        let title = self
1110            .thread
1111            .read(cx)
1112            .summary()
1113            .unwrap_or("Agent Panel".into());
1114
1115        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1116            NotifyWhenAgentWaiting::PrimaryScreen => {
1117                if let Some(primary) = cx.primary_display() {
1118                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1119                }
1120            }
1121            NotifyWhenAgentWaiting::AllScreens => {
1122                let caption = caption.into();
1123                for screen in cx.displays() {
1124                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1125                }
1126            }
1127            NotifyWhenAgentWaiting::Never => {
1128                // Don't show anything
1129            }
1130        }
1131    }
1132
1133    fn pop_up(
1134        &mut self,
1135        icon: IconName,
1136        caption: SharedString,
1137        title: SharedString,
1138        window: &mut Window,
1139        screen: Rc<dyn PlatformDisplay>,
1140        cx: &mut Context<'_, ActiveThread>,
1141    ) {
1142        let options = AgentNotification::window_options(screen, cx);
1143
1144        let project_name = self.workspace.upgrade().and_then(|workspace| {
1145            workspace
1146                .read(cx)
1147                .project()
1148                .read(cx)
1149                .visible_worktrees(cx)
1150                .next()
1151                .map(|worktree| worktree.read(cx).root_name().to_string())
1152        });
1153
1154        if let Some(screen_window) = cx
1155            .open_window(options, |_, cx| {
1156                cx.new(|_| {
1157                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1158                })
1159            })
1160            .log_err()
1161        {
1162            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1163                self.notification_subscriptions
1164                    .entry(screen_window)
1165                    .or_insert_with(Vec::new)
1166                    .push(cx.subscribe_in(&pop_up, window, {
1167                        |this, _, event, window, cx| match event {
1168                            AgentNotificationEvent::Accepted => {
1169                                let handle = window.window_handle();
1170                                cx.activate(true);
1171
1172                                let workspace_handle = this.workspace.clone();
1173
1174                                // If there are multiple Zed windows, activate the correct one.
1175                                cx.defer(move |cx| {
1176                                    handle
1177                                        .update(cx, |_view, window, _cx| {
1178                                            window.activate_window();
1179
1180                                            if let Some(workspace) = workspace_handle.upgrade() {
1181                                                workspace.update(_cx, |workspace, cx| {
1182                                                    workspace
1183                                                        .focus_panel::<AssistantPanel>(window, cx);
1184                                                });
1185                                            }
1186                                        })
1187                                        .log_err();
1188                                });
1189
1190                                this.dismiss_notifications(cx);
1191                            }
1192                            AgentNotificationEvent::Dismissed => {
1193                                this.dismiss_notifications(cx);
1194                            }
1195                        }
1196                    }));
1197
1198                self.notifications.push(screen_window);
1199
1200                // If the user manually refocuses the original window, dismiss the popup.
1201                self.notification_subscriptions
1202                    .entry(screen_window)
1203                    .or_insert_with(Vec::new)
1204                    .push({
1205                        let pop_up_weak = pop_up.downgrade();
1206
1207                        cx.observe_window_activation(window, move |_, window, cx| {
1208                            if window.is_window_active() {
1209                                if let Some(pop_up) = pop_up_weak.upgrade() {
1210                                    pop_up.update(cx, |_, cx| {
1211                                        cx.emit(AgentNotificationEvent::Dismissed);
1212                                    });
1213                                }
1214                            }
1215                        })
1216                    });
1217            }
1218        }
1219    }
1220
1221    /// Spawns a task to save the active thread.
1222    ///
1223    /// Only one task to save the thread will be in flight at a time.
1224    fn save_thread(&mut self, cx: &mut Context<Self>) {
1225        let thread = self.thread.clone();
1226        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1227            let task = this
1228                .update(cx, |this, cx| {
1229                    this.thread_store
1230                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1231                })
1232                .ok();
1233
1234            if let Some(task) = task {
1235                task.await.log_err();
1236            }
1237        }));
1238    }
1239
1240    fn start_editing_message(
1241        &mut self,
1242        message_id: MessageId,
1243        message_segments: &[MessageSegment],
1244        message_creases: &[MessageCrease],
1245        window: &mut Window,
1246        cx: &mut Context<Self>,
1247    ) {
1248        // User message should always consist of a single text segment,
1249        // therefore we can skip returning early if it's not a text segment.
1250        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1251            return;
1252        };
1253
1254        let editor = crate::message_editor::create_editor(
1255            self.workspace.clone(),
1256            self.context_store.downgrade(),
1257            self.thread_store.downgrade(),
1258            window,
1259            cx,
1260        );
1261        editor.update(cx, |editor, cx| {
1262            editor.set_text(message_text.clone(), window, cx);
1263            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1264            editor.focus_handle(cx).focus(window);
1265            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1266        });
1267        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1268            EditorEvent::BufferEdited => {
1269                this.update_editing_message_token_count(true, cx);
1270            }
1271            _ => {}
1272        });
1273
1274        let context_picker_menu_handle = PopoverMenuHandle::default();
1275        let context_strip = cx.new(|cx| {
1276            ContextStrip::new(
1277                self.context_store.clone(),
1278                self.workspace.clone(),
1279                Some(self.thread_store.downgrade()),
1280                context_picker_menu_handle.clone(),
1281                SuggestContextKind::File,
1282                window,
1283                cx,
1284            )
1285        });
1286
1287        let context_strip_subscription =
1288            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1289
1290        self.editing_message = Some((
1291            message_id,
1292            EditingMessageState {
1293                editor: editor.clone(),
1294                context_strip,
1295                context_picker_menu_handle,
1296                last_estimated_token_count: None,
1297                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1298                _update_token_count_task: None,
1299            },
1300        ));
1301        self.update_editing_message_token_count(false, cx);
1302        cx.notify();
1303    }
1304
1305    fn handle_context_strip_event(
1306        &mut self,
1307        _context_strip: &Entity<ContextStrip>,
1308        event: &ContextStripEvent,
1309        window: &mut Window,
1310        cx: &mut Context<Self>,
1311    ) {
1312        if let Some((_, state)) = self.editing_message.as_ref() {
1313            match event {
1314                ContextStripEvent::PickerDismissed
1315                | ContextStripEvent::BlurredEmpty
1316                | ContextStripEvent::BlurredDown => {
1317                    let editor_focus_handle = state.editor.focus_handle(cx);
1318                    window.focus(&editor_focus_handle);
1319                }
1320                ContextStripEvent::BlurredUp => {}
1321            }
1322        }
1323    }
1324
1325    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1326        let Some((message_id, state)) = self.editing_message.as_mut() else {
1327            return;
1328        };
1329
1330        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1331        state._update_token_count_task.take();
1332
1333        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1334            state.last_estimated_token_count.take();
1335            return;
1336        };
1337
1338        let editor = state.editor.clone();
1339        let thread = self.thread.clone();
1340        let message_id = *message_id;
1341
1342        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1343            if debounce {
1344                cx.background_executor()
1345                    .timer(Duration::from_millis(200))
1346                    .await;
1347            }
1348
1349            let token_count = if let Some(task) = cx
1350                .update(|cx| {
1351                    let Some(message) = thread.read(cx).message(message_id) else {
1352                        log::error!("Message that was being edited no longer exists");
1353                        return None;
1354                    };
1355                    let message_text = editor.read(cx).text(cx);
1356
1357                    if message_text.is_empty() && message.loaded_context.is_empty() {
1358                        return None;
1359                    }
1360
1361                    let mut request_message = LanguageModelRequestMessage {
1362                        role: language_model::Role::User,
1363                        content: Vec::new(),
1364                        cache: false,
1365                    };
1366
1367                    message
1368                        .loaded_context
1369                        .add_to_request_message(&mut request_message);
1370
1371                    if !message_text.is_empty() {
1372                        request_message
1373                            .content
1374                            .push(MessageContent::Text(message_text));
1375                    }
1376
1377                    let request = language_model::LanguageModelRequest {
1378                        thread_id: None,
1379                        prompt_id: None,
1380                        mode: None,
1381                        messages: vec![request_message],
1382                        tools: vec![],
1383                        stop: vec![],
1384                        temperature: None,
1385                    };
1386
1387                    Some(configured_model.model.count_tokens(request, cx))
1388                })
1389                .ok()
1390                .flatten()
1391            {
1392                task.await.log_err()
1393            } else {
1394                Some(0)
1395            };
1396
1397            if let Some(token_count) = token_count {
1398                this.update(cx, |this, cx| {
1399                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1400                        return;
1401                    };
1402
1403                    state.last_estimated_token_count = Some(token_count);
1404                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1405                })
1406                .ok();
1407            };
1408        }));
1409    }
1410
1411    fn toggle_context_picker(
1412        &mut self,
1413        _: &crate::ToggleContextPicker,
1414        window: &mut Window,
1415        cx: &mut Context<Self>,
1416    ) {
1417        if let Some((_, state)) = self.editing_message.as_mut() {
1418            let handle = state.context_picker_menu_handle.clone();
1419            window.defer(cx, move |window, cx| {
1420                handle.toggle(window, cx);
1421            });
1422        }
1423    }
1424
1425    fn remove_all_context(
1426        &mut self,
1427        _: &crate::RemoveAllContext,
1428        _window: &mut Window,
1429        cx: &mut Context<Self>,
1430    ) {
1431        self.context_store.update(cx, |store, _cx| store.clear());
1432        cx.notify();
1433    }
1434
1435    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1436        if let Some((_, state)) = self.editing_message.as_mut() {
1437            if state.context_picker_menu_handle.is_deployed() {
1438                cx.propagate();
1439            } else {
1440                state.context_strip.focus_handle(cx).focus(window);
1441            }
1442        }
1443    }
1444
1445    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1446        let images = cx
1447            .read_from_clipboard()
1448            .map(|item| {
1449                item.into_entries()
1450                    .filter_map(|entry| {
1451                        if let ClipboardEntry::Image(image) = entry {
1452                            Some(image)
1453                        } else {
1454                            None
1455                        }
1456                    })
1457                    .collect::<Vec<_>>()
1458            })
1459            .unwrap_or_default();
1460
1461        if images.is_empty() {
1462            return;
1463        }
1464        cx.stop_propagation();
1465
1466        self.context_store.update(cx, |store, cx| {
1467            for image in images {
1468                store.add_image_instance(Arc::new(image), cx);
1469            }
1470        });
1471    }
1472
1473    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1474        self.editing_message.take();
1475        cx.notify();
1476    }
1477
1478    fn confirm_editing_message(
1479        &mut self,
1480        _: &menu::Confirm,
1481        window: &mut Window,
1482        cx: &mut Context<Self>,
1483    ) {
1484        let Some((message_id, state)) = self.editing_message.take() else {
1485            return;
1486        };
1487
1488        let Some(model) = self
1489            .thread
1490            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1491        else {
1492            return;
1493        };
1494
1495        if model.provider.must_accept_terms(cx) {
1496            cx.notify();
1497            return;
1498        }
1499
1500        let edited_text = state.editor.read(cx).text(cx);
1501
1502        let new_context = self
1503            .context_store
1504            .read(cx)
1505            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1506
1507        let project = self.thread.read(cx).project().clone();
1508        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1509
1510        let load_context_task =
1511            crate::context::load_context(new_context, &project, &prompt_store, cx);
1512        self._load_edited_message_context_task =
1513            Some(cx.spawn_in(window, async move |this, cx| {
1514                let context = load_context_task.await;
1515                let _ = this
1516                    .update_in(cx, |this, window, cx| {
1517                        this.thread.update(cx, |thread, cx| {
1518                            thread.edit_message(
1519                                message_id,
1520                                Role::User,
1521                                vec![MessageSegment::Text(edited_text)],
1522                                Some(context.loaded_context),
1523                                cx,
1524                            );
1525                            for message_id in this.messages_after(message_id) {
1526                                thread.delete_message(*message_id, cx);
1527                            }
1528                        });
1529
1530                        this.thread.update(cx, |thread, cx| {
1531                            thread.advance_prompt_id();
1532                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1533                        });
1534                        this._load_edited_message_context_task = None;
1535                        cx.notify();
1536                    })
1537                    .log_err();
1538            }));
1539    }
1540
1541    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1542        self.messages
1543            .iter()
1544            .position(|id| *id == message_id)
1545            .map(|index| &self.messages[index + 1..])
1546            .unwrap_or(&[])
1547    }
1548
1549    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1550        self.cancel_editing_message(&menu::Cancel, window, cx);
1551    }
1552
1553    fn handle_regenerate_click(
1554        &mut self,
1555        _: &ClickEvent,
1556        window: &mut Window,
1557        cx: &mut Context<Self>,
1558    ) {
1559        self.confirm_editing_message(&menu::Confirm, window, cx);
1560    }
1561
1562    fn handle_feedback_click(
1563        &mut self,
1564        message_id: MessageId,
1565        feedback: ThreadFeedback,
1566        window: &mut Window,
1567        cx: &mut Context<Self>,
1568    ) {
1569        let report = self.thread.update(cx, |thread, cx| {
1570            thread.report_message_feedback(message_id, feedback, cx)
1571        });
1572
1573        cx.spawn(async move |this, cx| {
1574            report.await?;
1575            this.update(cx, |_this, cx| cx.notify())
1576        })
1577        .detach_and_log_err(cx);
1578
1579        match feedback {
1580            ThreadFeedback::Positive => {
1581                self.open_feedback_editors.remove(&message_id);
1582            }
1583            ThreadFeedback::Negative => {
1584                self.handle_show_feedback_comments(message_id, window, cx);
1585            }
1586        }
1587    }
1588
1589    fn handle_show_feedback_comments(
1590        &mut self,
1591        message_id: MessageId,
1592        window: &mut Window,
1593        cx: &mut Context<Self>,
1594    ) {
1595        let buffer = cx.new(|cx| {
1596            let empty_string = String::new();
1597            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1598        });
1599
1600        let editor = cx.new(|cx| {
1601            let mut editor = Editor::new(
1602                editor::EditorMode::AutoHeight { max_lines: 4 },
1603                buffer,
1604                None,
1605                window,
1606                cx,
1607            );
1608            editor.set_placeholder_text(
1609                "What went wrong? Share your feedback so we can improve.",
1610                cx,
1611            );
1612            editor
1613        });
1614
1615        editor.read(cx).focus_handle(cx).focus(window);
1616        self.open_feedback_editors.insert(message_id, editor);
1617        cx.notify();
1618    }
1619
1620    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1621        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1622            return;
1623        };
1624
1625        let report_task = self.thread.update(cx, |thread, cx| {
1626            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1627        });
1628
1629        let comments = editor.read(cx).text(cx);
1630        if !comments.is_empty() {
1631            let thread_id = self.thread.read(cx).id().clone();
1632            let comments_value = String::from(comments.as_str());
1633
1634            let message_content = self
1635                .thread
1636                .read(cx)
1637                .message(message_id)
1638                .map(|msg| msg.to_string())
1639                .unwrap_or_default();
1640
1641            telemetry::event!(
1642                "Assistant Thread Feedback Comments",
1643                thread_id,
1644                message_id = message_id.0,
1645                message_content,
1646                comments = comments_value
1647            );
1648
1649            self.open_feedback_editors.remove(&message_id);
1650
1651            cx.spawn(async move |this, cx| {
1652                report_task.await?;
1653                this.update(cx, |_this, cx| cx.notify())
1654            })
1655            .detach_and_log_err(cx);
1656        }
1657    }
1658
1659    fn render_edit_message_editor(
1660        &self,
1661        state: &EditingMessageState,
1662        window: &mut Window,
1663        cx: &Context<Self>,
1664    ) -> impl IntoElement {
1665        let settings = ThemeSettings::get_global(cx);
1666        let font_size = TextSize::Small.rems(cx);
1667        let line_height = font_size.to_pixels(window.rem_size()) * 1.75;
1668
1669        let colors = cx.theme().colors();
1670
1671        let text_style = TextStyle {
1672            color: colors.text,
1673            font_family: settings.buffer_font.family.clone(),
1674            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1675            font_features: settings.buffer_font.features.clone(),
1676            font_size: font_size.into(),
1677            line_height: line_height.into(),
1678            ..Default::default()
1679        };
1680
1681        v_flex()
1682            .key_context("EditMessageEditor")
1683            .on_action(cx.listener(Self::toggle_context_picker))
1684            .on_action(cx.listener(Self::remove_all_context))
1685            .on_action(cx.listener(Self::move_up))
1686            .on_action(cx.listener(Self::cancel_editing_message))
1687            .on_action(cx.listener(Self::confirm_editing_message))
1688            .capture_action(cx.listener(Self::paste))
1689            .min_h_6()
1690            .flex_grow()
1691            .w_full()
1692            .gap_2()
1693            .child(EditorElement::new(
1694                &state.editor,
1695                EditorStyle {
1696                    background: colors.editor_background,
1697                    local_player: cx.theme().players().local(),
1698                    text: text_style,
1699                    syntax: cx.theme().syntax().clone(),
1700                    ..Default::default()
1701                },
1702            ))
1703            .child(state.context_strip.clone())
1704    }
1705
1706    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1707        let message_id = self.messages[ix];
1708        let Some(message) = self.thread.read(cx).message(message_id) else {
1709            return Empty.into_any();
1710        };
1711        let message_creases = message.creases.clone();
1712
1713        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1714            return Empty.into_any();
1715        };
1716
1717        let workspace = self.workspace.clone();
1718        let thread = self.thread.read(cx);
1719
1720        // Get all the data we need from thread before we start using it in closures
1721        let checkpoint = thread.checkpoint_for_message(message_id);
1722        let added_context = thread
1723            .context_for_message(message_id)
1724            .map(|context| AddedContext::new_attached(context, cx))
1725            .collect::<Vec<_>>();
1726
1727        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1728        let has_tool_uses = !tool_uses.is_empty();
1729        let is_generating = thread.is_generating();
1730
1731        let is_first_message = ix == 0;
1732        let is_last_message = ix == self.messages.len() - 1;
1733
1734        let show_feedback = thread.is_turn_end(ix);
1735
1736        let generating_label = (is_generating && is_last_message)
1737            .then(|| AnimatedLabel::new("Generating").size(LabelSize::Small));
1738
1739        let editing_message_state = self
1740            .editing_message
1741            .as_ref()
1742            .filter(|(id, _)| *id == message_id)
1743            .map(|(_, state)| state);
1744
1745        let colors = cx.theme().colors();
1746        let editor_bg_color = colors.editor_background;
1747
1748        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1749            .shape(ui::IconButtonShape::Square)
1750            .icon_size(IconSize::XSmall)
1751            .icon_color(Color::Ignored)
1752            .tooltip(Tooltip::text("Open Thread as Markdown"))
1753            .on_click(|_, window, cx| {
1754                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1755            });
1756
1757        // For all items that should be aligned with the LLM's response.
1758        const RESPONSE_PADDING_X: Pixels = px(19.);
1759
1760        let feedback_container = h_flex()
1761            .group("feedback_container")
1762            .mt_1()
1763            .py_2()
1764            .px(RESPONSE_PADDING_X)
1765            .gap_1()
1766            .flex_wrap()
1767            .justify_end();
1768        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1769            Some(feedback) => feedback_container
1770                .child(
1771                    div().mr_1().visible_on_hover("feedback_container").child(
1772                        Label::new(match feedback {
1773                            ThreadFeedback::Positive => "Thanks for your feedback!",
1774                            ThreadFeedback::Negative => {
1775                                "We appreciate your feedback and will use it to improve."
1776                            }
1777                        })
1778                    .color(Color::Muted)
1779                    .size(LabelSize::XSmall)
1780                    .truncate())
1781                )
1782                .child(
1783                    h_flex()
1784                        .pr_1()
1785                        .gap_1()
1786                        .child(
1787                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1788                                .shape(ui::IconButtonShape::Square)
1789                                .icon_size(IconSize::XSmall)
1790                                .icon_color(match feedback {
1791                                    ThreadFeedback::Positive => Color::Accent,
1792                                    ThreadFeedback::Negative => Color::Ignored,
1793                                })
1794                                .tooltip(Tooltip::text("Helpful Response"))
1795                                .on_click(cx.listener(move |this, _, window, cx| {
1796                                    this.handle_feedback_click(
1797                                        message_id,
1798                                        ThreadFeedback::Positive,
1799                                        window,
1800                                        cx,
1801                                    );
1802                                })),
1803                        )
1804                        .child(
1805                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1806                                .shape(ui::IconButtonShape::Square)
1807                                .icon_size(IconSize::XSmall)
1808                                .icon_color(match feedback {
1809                                    ThreadFeedback::Positive => Color::Ignored,
1810                                    ThreadFeedback::Negative => Color::Accent,
1811                                })
1812                                .tooltip(Tooltip::text("Not Helpful"))
1813                                .on_click(cx.listener(move |this, _, window, cx| {
1814                                    this.handle_feedback_click(
1815                                        message_id,
1816                                        ThreadFeedback::Negative,
1817                                        window,
1818                                        cx,
1819                                    );
1820                                })),
1821                        )
1822                        .child(open_as_markdown),
1823                )
1824                .into_any_element(),
1825            None => feedback_container
1826                .child(
1827                    div().mr_1().visible_on_hover("feedback_container").child(
1828                        Label::new(
1829                            "Rating the thread sends all of your current conversation to the Zed team.",
1830                        )
1831                        .color(Color::Muted)
1832                    .size(LabelSize::XSmall)
1833                    .truncate())
1834                )
1835                .child(
1836                    h_flex()
1837                        .pr_1()
1838                        .gap_1()
1839                        .child(
1840                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1841                                .icon_size(IconSize::XSmall)
1842                                .icon_color(Color::Ignored)
1843                                .shape(ui::IconButtonShape::Square)
1844                                .tooltip(Tooltip::text("Helpful Response"))
1845                                .on_click(cx.listener(move |this, _, window, cx| {
1846                                    this.handle_feedback_click(
1847                                        message_id,
1848                                        ThreadFeedback::Positive,
1849                                        window,
1850                                        cx,
1851                                    );
1852                                })),
1853                        )
1854                        .child(
1855                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1856                                .icon_size(IconSize::XSmall)
1857                                .icon_color(Color::Ignored)
1858                                .shape(ui::IconButtonShape::Square)
1859                                .tooltip(Tooltip::text("Not Helpful"))
1860                                .on_click(cx.listener(move |this, _, window, cx| {
1861                                    this.handle_feedback_click(
1862                                        message_id,
1863                                        ThreadFeedback::Negative,
1864                                        window,
1865                                        cx,
1866                                    );
1867                                })),
1868                        )
1869                        .child(open_as_markdown),
1870                )
1871                .into_any_element(),
1872        };
1873
1874        let message_is_empty = message.should_display_content();
1875        let has_content = !message_is_empty || !added_context.is_empty();
1876
1877        let message_content = has_content.then(|| {
1878            if let Some(state) = editing_message_state.as_ref() {
1879                self.render_edit_message_editor(state, window, cx)
1880                    .into_any_element()
1881            } else {
1882                v_flex()
1883                    .w_full()
1884                    .gap_1()
1885                    .when(!message_is_empty, |parent| {
1886                        parent.child(div().min_h_6().child(self.render_message_content(
1887                            message_id,
1888                            rendered_message,
1889                            has_tool_uses,
1890                            workspace.clone(),
1891                            window,
1892                            cx,
1893                        )))
1894                    })
1895                    .when(!added_context.is_empty(), |parent| {
1896                        parent.child(h_flex().flex_wrap().gap_1().children(
1897                            added_context.into_iter().map(|added_context| {
1898                                let context = added_context.handle.clone();
1899                                ContextPill::added(added_context, false, false, None).on_click(
1900                                    Rc::new(cx.listener({
1901                                        let workspace = workspace.clone();
1902                                        move |_, _, window, cx| {
1903                                            if let Some(workspace) = workspace.upgrade() {
1904                                                open_context(&context, workspace, window, cx);
1905                                                cx.notify();
1906                                            }
1907                                            cx.stop_propagation();
1908                                        }
1909                                    })),
1910                                )
1911                            }),
1912                        ))
1913                    })
1914                    .into_any_element()
1915            }
1916        });
1917
1918        let styled_message = match message.role {
1919            Role::User => v_flex()
1920                .id(("message-container", ix))
1921                .pt_2()
1922                .pl_2()
1923                .pr_2p5()
1924                .pb_4()
1925                .child(
1926                    v_flex()
1927                        .id(("user-message", ix))
1928                        .bg(editor_bg_color)
1929                        .rounded_lg()
1930                        .shadow_md()
1931                        .border_1()
1932                        .border_color(colors.border)
1933                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1934                        .cursor_pointer()
1935                        .child(
1936                            h_flex()
1937                                .p_2p5()
1938                                .gap_1()
1939                                .children(message_content)
1940                                .when_some(editing_message_state, |this, state| {
1941                                    let focus_handle = state.editor.focus_handle(cx).clone();
1942                                    this.w_full().justify_between().child(
1943                                        h_flex()
1944                                            .gap_0p5()
1945                                            .child(
1946                                                IconButton::new(
1947                                                    "cancel-edit-message",
1948                                                    IconName::Close,
1949                                                )
1950                                                .shape(ui::IconButtonShape::Square)
1951                                                .icon_color(Color::Error)
1952                                                .tooltip({
1953                                                    let focus_handle = focus_handle.clone();
1954                                                    move |window, cx| {
1955                                                        Tooltip::for_action_in(
1956                                                            "Cancel Edit",
1957                                                            &menu::Cancel,
1958                                                            &focus_handle,
1959                                                            window,
1960                                                            cx,
1961                                                        )
1962                                                    }
1963                                                })
1964                                                .on_click(cx.listener(Self::handle_cancel_click)),
1965                                            )
1966                                            .child(
1967                                                IconButton::new(
1968                                                    "confirm-edit-message",
1969                                                    IconName::Check,
1970                                                )
1971                                                .disabled(state.editor.read(cx).is_empty(cx))
1972                                                .shape(ui::IconButtonShape::Square)
1973                                                .icon_color(Color::Success)
1974                                                .tooltip({
1975                                                    let focus_handle = focus_handle.clone();
1976                                                    move |window, cx| {
1977                                                        Tooltip::for_action_in(
1978                                                            "Regenerate",
1979                                                            &menu::Confirm,
1980                                                            &focus_handle,
1981                                                            window,
1982                                                            cx,
1983                                                        )
1984                                                    }
1985                                                })
1986                                                .on_click(
1987                                                    cx.listener(Self::handle_regenerate_click),
1988                                                ),
1989                                            ),
1990                                    )
1991                                }),
1992                        )
1993                        .on_click(cx.listener({
1994                            let message_segments = message.segments.clone();
1995                            move |this, _, window, cx| {
1996                                this.start_editing_message(
1997                                    message_id,
1998                                    &message_segments,
1999                                    &message_creases,
2000                                    window,
2001                                    cx,
2002                                );
2003                            }
2004                        })),
2005                ),
2006            Role::Assistant => v_flex()
2007                .id(("message-container", ix))
2008                .px(RESPONSE_PADDING_X)
2009                .gap_2()
2010                .children(message_content)
2011                .when(has_tool_uses, |parent| {
2012                    parent.children(tool_uses.into_iter().map(|tool_use| {
2013                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2014                    }))
2015                }),
2016            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2017                v_flex()
2018                    .bg(colors.editor_background)
2019                    .rounded_sm()
2020                    .child(div().p_4().children(message_content)),
2021            ),
2022        };
2023
2024        let after_editing_message = self
2025            .editing_message
2026            .as_ref()
2027            .map_or(false, |(editing_message_id, _)| {
2028                message_id > *editing_message_id
2029            });
2030
2031        let panel_background = cx.theme().colors().panel_background;
2032
2033        v_flex()
2034            .w_full()
2035            .when_some(checkpoint, |parent, checkpoint| {
2036                let mut is_pending = false;
2037                let mut error = None;
2038                if let Some(last_restore_checkpoint) =
2039                    self.thread.read(cx).last_restore_checkpoint()
2040                {
2041                    if last_restore_checkpoint.message_id() == message_id {
2042                        match last_restore_checkpoint {
2043                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2044                            LastRestoreCheckpoint::Error { error: err, .. } => {
2045                                error = Some(err.clone());
2046                            }
2047                        }
2048                    }
2049                }
2050
2051                let restore_checkpoint_button =
2052                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2053                        .icon(if error.is_some() {
2054                            IconName::XCircle
2055                        } else {
2056                            IconName::Undo
2057                        })
2058                        .icon_size(IconSize::XSmall)
2059                        .icon_position(IconPosition::Start)
2060                        .icon_color(if error.is_some() {
2061                            Some(Color::Error)
2062                        } else {
2063                            None
2064                        })
2065                        .label_size(LabelSize::XSmall)
2066                        .disabled(is_pending)
2067                        .on_click(cx.listener(move |this, _, _window, cx| {
2068                            this.thread.update(cx, |thread, cx| {
2069                                thread
2070                                    .restore_checkpoint(checkpoint.clone(), cx)
2071                                    .detach_and_log_err(cx);
2072                            });
2073                        }));
2074
2075                let restore_checkpoint_button = if is_pending {
2076                    restore_checkpoint_button
2077                        .with_animation(
2078                            ("pulsating-restore-checkpoint-button", ix),
2079                            Animation::new(Duration::from_secs(2))
2080                                .repeat()
2081                                .with_easing(pulsating_between(0.6, 1.)),
2082                            |label, delta| label.alpha(delta),
2083                        )
2084                        .into_any_element()
2085                } else if let Some(error) = error {
2086                    restore_checkpoint_button
2087                        .tooltip(Tooltip::text(error.to_string()))
2088                        .into_any_element()
2089                } else {
2090                    restore_checkpoint_button.into_any_element()
2091                };
2092
2093                parent.child(
2094                    h_flex()
2095                        .pt_2p5()
2096                        .px_2p5()
2097                        .w_full()
2098                        .gap_1()
2099                        .child(ui::Divider::horizontal())
2100                        .child(restore_checkpoint_button)
2101                        .child(ui::Divider::horizontal()),
2102                )
2103            })
2104            .when(is_first_message, |parent| {
2105                parent.child(self.render_rules_item(cx))
2106            })
2107            .child(styled_message)
2108            .when(generating_label.is_some(), |this| {
2109                this.child(
2110                    h_flex()
2111                        .h_8()
2112                        .mt_2()
2113                        .mb_4()
2114                        .ml_4()
2115                        .py_1p5()
2116                        .child(generating_label.unwrap()),
2117                )
2118            })
2119            .when(show_feedback, move |parent| {
2120                parent.child(feedback_items).when_some(
2121                    self.open_feedback_editors.get(&message_id),
2122                    move |parent, feedback_editor| {
2123                        let focus_handle = feedback_editor.focus_handle(cx);
2124                        parent.child(
2125                            v_flex()
2126                                .key_context("AgentFeedbackMessageEditor")
2127                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2128                                    this.open_feedback_editors.remove(&message_id);
2129                                    cx.notify();
2130                                }))
2131                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2132                                    this.submit_feedback_message(message_id, cx);
2133                                    cx.notify();
2134                                }))
2135                                .on_action(cx.listener(Self::confirm_editing_message))
2136                                .mb_2()
2137                                .mx_4()
2138                                .p_2()
2139                                .rounded_md()
2140                                .border_1()
2141                                .border_color(cx.theme().colors().border)
2142                                .bg(cx.theme().colors().editor_background)
2143                                .child(feedback_editor.clone())
2144                                .child(
2145                                    h_flex()
2146                                        .gap_1()
2147                                        .justify_end()
2148                                        .child(
2149                                            Button::new("dismiss-feedback-message", "Cancel")
2150                                                .label_size(LabelSize::Small)
2151                                                .key_binding(
2152                                                    KeyBinding::for_action_in(
2153                                                        &menu::Cancel,
2154                                                        &focus_handle,
2155                                                        window,
2156                                                        cx,
2157                                                    )
2158                                                    .map(|kb| kb.size(rems_from_px(10.))),
2159                                                )
2160                                                .on_click(cx.listener(
2161                                                    move |this, _, _window, cx| {
2162                                                        this.open_feedback_editors
2163                                                            .remove(&message_id);
2164                                                        cx.notify();
2165                                                    },
2166                                                )),
2167                                        )
2168                                        .child(
2169                                            Button::new(
2170                                                "submit-feedback-message",
2171                                                "Share Feedback",
2172                                            )
2173                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2174                                            .label_size(LabelSize::Small)
2175                                            .key_binding(
2176                                                KeyBinding::for_action_in(
2177                                                    &menu::Confirm,
2178                                                    &focus_handle,
2179                                                    window,
2180                                                    cx,
2181                                                )
2182                                                .map(|kb| kb.size(rems_from_px(10.))),
2183                                            )
2184                                            .on_click(
2185                                                cx.listener(move |this, _, _window, cx| {
2186                                                    this.submit_feedback_message(message_id, cx);
2187                                                    cx.notify()
2188                                                }),
2189                                            ),
2190                                        ),
2191                                ),
2192                        )
2193                    },
2194                )
2195            })
2196            .when(after_editing_message, |parent| {
2197                // Backdrop to dim out the whole thread below the editing user message
2198                parent.relative().child(
2199                    div()
2200                        .occlude()
2201                        .absolute()
2202                        .inset_0()
2203                        .size_full()
2204                        .bg(panel_background)
2205                        .opacity(0.8),
2206                )
2207            })
2208            .into_any()
2209    }
2210
2211    fn render_message_content(
2212        &self,
2213        message_id: MessageId,
2214        rendered_message: &RenderedMessage,
2215        has_tool_uses: bool,
2216        workspace: WeakEntity<Workspace>,
2217        window: &Window,
2218        cx: &Context<Self>,
2219    ) -> impl IntoElement {
2220        let is_last_message = self.messages.last() == Some(&message_id);
2221        let is_generating = self.thread.read(cx).is_generating();
2222        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2223            rendered_message
2224                .segments
2225                .iter()
2226                .enumerate()
2227                .next_back()
2228                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2229                .map(|(index, _)| index)
2230        } else {
2231            None
2232        };
2233
2234        let message_role = self
2235            .thread
2236            .read(cx)
2237            .message(message_id)
2238            .map(|m| m.role)
2239            .unwrap_or(Role::User);
2240
2241        let is_assistant_message = message_role == Role::Assistant;
2242        let is_user_message = message_role == Role::User;
2243
2244        v_flex()
2245            .text_ui(cx)
2246            .gap_2()
2247            .when(is_user_message, |this| this.text_xs())
2248            .children(
2249                rendered_message.segments.iter().enumerate().map(
2250                    |(index, segment)| match segment {
2251                        RenderedMessageSegment::Thinking {
2252                            content,
2253                            scroll_handle,
2254                        } => self
2255                            .render_message_thinking_segment(
2256                                message_id,
2257                                index,
2258                                content.clone(),
2259                                &scroll_handle,
2260                                Some(index) == pending_thinking_segment_index,
2261                                window,
2262                                cx,
2263                            )
2264                            .into_any_element(),
2265                        RenderedMessageSegment::Text(markdown) => {
2266                            let markdown_element = MarkdownElement::new(
2267                                markdown.clone(),
2268                                if is_user_message {
2269                                    let mut style = default_markdown_style(window, cx);
2270                                    let mut text_style = window.text_style();
2271                                    let theme_settings = ThemeSettings::get_global(cx);
2272
2273                                    let buffer_font = theme_settings.buffer_font.family.clone();
2274                                    let buffer_font_size = TextSize::Small.rems(cx);
2275
2276                                    text_style.refine(&TextStyleRefinement {
2277                                        font_family: Some(buffer_font),
2278                                        font_size: Some(buffer_font_size.into()),
2279                                        ..Default::default()
2280                                    });
2281
2282                                    style.base_text_style = text_style;
2283                                    style
2284                                } else {
2285                                    default_markdown_style(window, cx)
2286                                },
2287                            );
2288
2289                            let markdown_element = if is_assistant_message {
2290                                markdown_element.code_block_renderer(
2291                                    markdown::CodeBlockRenderer::Custom {
2292                                        render: Arc::new({
2293                                            let workspace = workspace.clone();
2294                                            let active_thread = cx.entity();
2295                                            move |kind,
2296                                                  parsed_markdown,
2297                                                  range,
2298                                                  metadata,
2299                                                  window,
2300                                                  cx| {
2301                                                render_markdown_code_block(
2302                                                    message_id,
2303                                                    range.start,
2304                                                    kind,
2305                                                    parsed_markdown,
2306                                                    metadata,
2307                                                    active_thread.clone(),
2308                                                    workspace.clone(),
2309                                                    window,
2310                                                    cx,
2311                                                )
2312                                            }
2313                                        }),
2314                                        transform: Some(Arc::new({
2315                                            let active_thread = cx.entity();
2316                                            let editor_bg = cx.theme().colors().editor_background;
2317
2318                                            move |el, range, metadata, _, cx| {
2319                                                let is_expanded = active_thread
2320                                                    .read(cx)
2321                                                    .expanded_code_blocks
2322                                                    .get(&(message_id, range.start))
2323                                                    .copied()
2324                                                    .unwrap_or(true);
2325
2326                                                if is_expanded
2327                                                    || metadata.line_count
2328                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2329                                                {
2330                                                    return el;
2331                                                }
2332                                                el.child(
2333                                                    div()
2334                                                        .absolute()
2335                                                        .bottom_0()
2336                                                        .left_0()
2337                                                        .w_full()
2338                                                        .h_1_4()
2339                                                        .rounded_b_lg()
2340                                                        .bg(linear_gradient(
2341                                                            0.,
2342                                                            linear_color_stop(editor_bg, 0.),
2343                                                            linear_color_stop(
2344                                                                editor_bg.opacity(0.),
2345                                                                1.,
2346                                                            ),
2347                                                        )),
2348                                                )
2349                                            }
2350                                        })),
2351                                    },
2352                                )
2353                            } else {
2354                                markdown_element.code_block_renderer(
2355                                    markdown::CodeBlockRenderer::Default {
2356                                        copy_button: false,
2357                                        border: true,
2358                                    },
2359                                )
2360                            };
2361
2362                            div()
2363                                .child(markdown_element.on_url_click({
2364                                    let workspace = self.workspace.clone();
2365                                    move |text, window, cx| {
2366                                        open_markdown_link(text, workspace.clone(), window, cx);
2367                                        cx.stop_propagation();
2368                                    }
2369                                }))
2370                                .into_any_element()
2371                        }
2372                    },
2373                ),
2374            )
2375    }
2376
2377    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2378        cx.theme().colors().border.opacity(0.5)
2379    }
2380
2381    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2382        cx.theme()
2383            .colors()
2384            .element_background
2385            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2386    }
2387
2388    fn render_message_thinking_segment(
2389        &self,
2390        message_id: MessageId,
2391        ix: usize,
2392        markdown: Entity<Markdown>,
2393        scroll_handle: &ScrollHandle,
2394        pending: bool,
2395        window: &Window,
2396        cx: &Context<Self>,
2397    ) -> impl IntoElement {
2398        let is_open = self
2399            .expanded_thinking_segments
2400            .get(&(message_id, ix))
2401            .copied()
2402            .unwrap_or_default();
2403
2404        let editor_bg = cx.theme().colors().panel_background;
2405
2406        div().map(|this| {
2407            if pending {
2408                this.v_flex()
2409                    .mt_neg_2()
2410                    .mb_1p5()
2411                    .child(
2412                        h_flex()
2413                            .group("disclosure-header")
2414                            .justify_between()
2415                            .child(
2416                                h_flex()
2417                                    .gap_1p5()
2418                                    .child(
2419                                        Icon::new(IconName::LightBulb)
2420                                            .size(IconSize::XSmall)
2421                                            .color(Color::Muted),
2422                                    )
2423                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2424                            )
2425                            .child(
2426                                h_flex()
2427                                    .gap_1()
2428                                    .child(
2429                                        div().visible_on_hover("disclosure-header").child(
2430                                            Disclosure::new("thinking-disclosure", is_open)
2431                                                .opened_icon(IconName::ChevronUp)
2432                                                .closed_icon(IconName::ChevronDown)
2433                                                .on_click(cx.listener({
2434                                                    move |this, _event, _window, _cx| {
2435                                                        let is_open = this
2436                                                            .expanded_thinking_segments
2437                                                            .entry((message_id, ix))
2438                                                            .or_insert(false);
2439
2440                                                        *is_open = !*is_open;
2441                                                    }
2442                                                })),
2443                                        ),
2444                                    )
2445                                    .child({
2446                                        Icon::new(IconName::ArrowCircle)
2447                                            .color(Color::Accent)
2448                                            .size(IconSize::Small)
2449                                            .with_animation(
2450                                                "arrow-circle",
2451                                                Animation::new(Duration::from_secs(2)).repeat(),
2452                                                |icon, delta| {
2453                                                    icon.transform(Transformation::rotate(
2454                                                        percentage(delta),
2455                                                    ))
2456                                                },
2457                                            )
2458                                    }),
2459                            ),
2460                    )
2461                    .when(!is_open, |this| {
2462                        let gradient_overlay = div()
2463                            .rounded_b_lg()
2464                            .h_full()
2465                            .absolute()
2466                            .w_full()
2467                            .bottom_0()
2468                            .left_0()
2469                            .bg(linear_gradient(
2470                                180.,
2471                                linear_color_stop(editor_bg, 1.),
2472                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2473                            ));
2474
2475                        this.child(
2476                            div()
2477                                .relative()
2478                                .bg(editor_bg)
2479                                .rounded_b_lg()
2480                                .mt_2()
2481                                .pl_4()
2482                                .child(
2483                                    div()
2484                                        .id(("thinking-content", ix))
2485                                        .max_h_20()
2486                                        .track_scroll(scroll_handle)
2487                                        .text_ui_sm(cx)
2488                                        .overflow_hidden()
2489                                        .child(
2490                                            MarkdownElement::new(
2491                                                markdown.clone(),
2492                                                default_markdown_style(window, cx),
2493                                            )
2494                                            .on_url_click({
2495                                                let workspace = self.workspace.clone();
2496                                                move |text, window, cx| {
2497                                                    open_markdown_link(
2498                                                        text,
2499                                                        workspace.clone(),
2500                                                        window,
2501                                                        cx,
2502                                                    );
2503                                                }
2504                                            }),
2505                                        ),
2506                                )
2507                                .child(gradient_overlay),
2508                        )
2509                    })
2510                    .when(is_open, |this| {
2511                        this.child(
2512                            div()
2513                                .id(("thinking-content", ix))
2514                                .h_full()
2515                                .bg(editor_bg)
2516                                .text_ui_sm(cx)
2517                                .child(
2518                                    MarkdownElement::new(
2519                                        markdown.clone(),
2520                                        default_markdown_style(window, cx),
2521                                    )
2522                                    .on_url_click({
2523                                        let workspace = self.workspace.clone();
2524                                        move |text, window, cx| {
2525                                            open_markdown_link(text, workspace.clone(), window, cx);
2526                                        }
2527                                    }),
2528                                ),
2529                        )
2530                    })
2531            } else {
2532                this.v_flex()
2533                    .mt_neg_2()
2534                    .child(
2535                        h_flex()
2536                            .group("disclosure-header")
2537                            .pr_1()
2538                            .justify_between()
2539                            .opacity(0.8)
2540                            .hover(|style| style.opacity(1.))
2541                            .child(
2542                                h_flex()
2543                                    .gap_1p5()
2544                                    .child(
2545                                        Icon::new(IconName::LightBulb)
2546                                            .size(IconSize::XSmall)
2547                                            .color(Color::Muted),
2548                                    )
2549                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2550                            )
2551                            .child(
2552                                div().visible_on_hover("disclosure-header").child(
2553                                    Disclosure::new("thinking-disclosure", is_open)
2554                                        .opened_icon(IconName::ChevronUp)
2555                                        .closed_icon(IconName::ChevronDown)
2556                                        .on_click(cx.listener({
2557                                            move |this, _event, _window, _cx| {
2558                                                let is_open = this
2559                                                    .expanded_thinking_segments
2560                                                    .entry((message_id, ix))
2561                                                    .or_insert(false);
2562
2563                                                *is_open = !*is_open;
2564                                            }
2565                                        })),
2566                                ),
2567                            ),
2568                    )
2569                    .child(
2570                        div()
2571                            .id(("thinking-content", ix))
2572                            .relative()
2573                            .mt_1p5()
2574                            .ml_1p5()
2575                            .pl_2p5()
2576                            .border_l_1()
2577                            .border_color(cx.theme().colors().border_variant)
2578                            .text_ui_sm(cx)
2579                            .when(is_open, |this| {
2580                                this.child(
2581                                    MarkdownElement::new(
2582                                        markdown.clone(),
2583                                        default_markdown_style(window, cx),
2584                                    )
2585                                    .on_url_click({
2586                                        let workspace = self.workspace.clone();
2587                                        move |text, window, cx| {
2588                                            open_markdown_link(text, workspace.clone(), window, cx);
2589                                        }
2590                                    }),
2591                                )
2592                            }),
2593                    )
2594            }
2595        })
2596    }
2597
2598    fn render_tool_use(
2599        &self,
2600        tool_use: ToolUse,
2601        window: &mut Window,
2602        workspace: WeakEntity<Workspace>,
2603        cx: &mut Context<Self>,
2604    ) -> impl IntoElement + use<> {
2605        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2606            return card.render(&tool_use.status, window, workspace, cx);
2607        }
2608
2609        let is_open = self
2610            .expanded_tool_uses
2611            .get(&tool_use.id)
2612            .copied()
2613            .unwrap_or_default();
2614
2615        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2616
2617        let fs = self
2618            .workspace
2619            .upgrade()
2620            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2621        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2622        let needs_confirmation_tools = tool_use.needs_confirmation;
2623
2624        let status_icons = div().child(match &tool_use.status {
2625            ToolUseStatus::NeedsConfirmation => {
2626                let icon = Icon::new(IconName::Warning)
2627                    .color(Color::Warning)
2628                    .size(IconSize::Small);
2629                icon.into_any_element()
2630            }
2631            ToolUseStatus::Pending
2632            | ToolUseStatus::InputStillStreaming
2633            | ToolUseStatus::Running => {
2634                let icon = Icon::new(IconName::ArrowCircle)
2635                    .color(Color::Accent)
2636                    .size(IconSize::Small);
2637                icon.with_animation(
2638                    "arrow-circle",
2639                    Animation::new(Duration::from_secs(2)).repeat(),
2640                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2641                )
2642                .into_any_element()
2643            }
2644            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2645            ToolUseStatus::Error(_) => {
2646                let icon = Icon::new(IconName::Close)
2647                    .color(Color::Error)
2648                    .size(IconSize::Small);
2649                icon.into_any_element()
2650            }
2651        });
2652
2653        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2654        let results_content_container = || v_flex().p_2().gap_0p5();
2655
2656        let results_content = v_flex()
2657            .gap_1()
2658            .child(
2659                results_content_container()
2660                    .child(
2661                        Label::new("Input")
2662                            .size(LabelSize::XSmall)
2663                            .color(Color::Muted)
2664                            .buffer_font(cx),
2665                    )
2666                    .child(
2667                        div()
2668                            .w_full()
2669                            .text_ui_sm(cx)
2670                            .children(rendered_tool_use.as_ref().map(|rendered| {
2671                                MarkdownElement::new(
2672                                    rendered.input.clone(),
2673                                    tool_use_markdown_style(window, cx),
2674                                )
2675                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2676                                    copy_button: false,
2677                                    border: false,
2678                                })
2679                                .on_url_click({
2680                                    let workspace = self.workspace.clone();
2681                                    move |text, window, cx| {
2682                                        open_markdown_link(text, workspace.clone(), window, cx);
2683                                    }
2684                                })
2685                            })),
2686                    ),
2687            )
2688            .map(|container| match tool_use.status {
2689                ToolUseStatus::Finished(_) => container.child(
2690                    results_content_container()
2691                        .border_t_1()
2692                        .border_color(self.tool_card_border_color(cx))
2693                        .child(
2694                            Label::new("Result")
2695                                .size(LabelSize::XSmall)
2696                                .color(Color::Muted)
2697                                .buffer_font(cx),
2698                        )
2699                        .child(div().w_full().text_ui_sm(cx).children(
2700                            rendered_tool_use.as_ref().map(|rendered| {
2701                                MarkdownElement::new(
2702                                    rendered.output.clone(),
2703                                    tool_use_markdown_style(window, cx),
2704                                )
2705                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2706                                    copy_button: false,
2707                                    border: false,
2708                                })
2709                                .on_url_click({
2710                                    let workspace = self.workspace.clone();
2711                                    move |text, window, cx| {
2712                                        open_markdown_link(text, workspace.clone(), window, cx);
2713                                    }
2714                                })
2715                                .into_any_element()
2716                            }),
2717                        )),
2718                ),
2719                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2720                    results_content_container()
2721                        .border_t_1()
2722                        .border_color(self.tool_card_border_color(cx))
2723                        .child(
2724                            h_flex()
2725                                .gap_1()
2726                                .child(
2727                                    Icon::new(IconName::ArrowCircle)
2728                                        .size(IconSize::Small)
2729                                        .color(Color::Accent)
2730                                        .with_animation(
2731                                            "arrow-circle",
2732                                            Animation::new(Duration::from_secs(2)).repeat(),
2733                                            |icon, delta| {
2734                                                icon.transform(Transformation::rotate(percentage(
2735                                                    delta,
2736                                                )))
2737                                            },
2738                                        ),
2739                                )
2740                                .child(
2741                                    Label::new("Running…")
2742                                        .size(LabelSize::XSmall)
2743                                        .color(Color::Muted)
2744                                        .buffer_font(cx),
2745                                ),
2746                        ),
2747                ),
2748                ToolUseStatus::Error(_) => container.child(
2749                    results_content_container()
2750                        .border_t_1()
2751                        .border_color(self.tool_card_border_color(cx))
2752                        .child(
2753                            Label::new("Error")
2754                                .size(LabelSize::XSmall)
2755                                .color(Color::Muted)
2756                                .buffer_font(cx),
2757                        )
2758                        .child(
2759                            div()
2760                                .text_ui_sm(cx)
2761                                .children(rendered_tool_use.as_ref().map(|rendered| {
2762                                    MarkdownElement::new(
2763                                        rendered.output.clone(),
2764                                        tool_use_markdown_style(window, cx),
2765                                    )
2766                                    .on_url_click({
2767                                        let workspace = self.workspace.clone();
2768                                        move |text, window, cx| {
2769                                            open_markdown_link(text, workspace.clone(), window, cx);
2770                                        }
2771                                    })
2772                                    .into_any_element()
2773                                })),
2774                        ),
2775                ),
2776                ToolUseStatus::Pending => container,
2777                ToolUseStatus::NeedsConfirmation => container.child(
2778                    results_content_container()
2779                        .border_t_1()
2780                        .border_color(self.tool_card_border_color(cx))
2781                        .child(
2782                            Label::new("Asking Permission")
2783                                .size(LabelSize::Small)
2784                                .color(Color::Muted)
2785                                .buffer_font(cx),
2786                        ),
2787                ),
2788            });
2789
2790        let gradient_overlay = |color: Hsla| {
2791            div()
2792                .h_full()
2793                .absolute()
2794                .w_12()
2795                .bottom_0()
2796                .map(|element| {
2797                    if is_status_finished {
2798                        element.right_6()
2799                    } else {
2800                        element.right(px(44.))
2801                    }
2802                })
2803                .bg(linear_gradient(
2804                    90.,
2805                    linear_color_stop(color, 1.),
2806                    linear_color_stop(color.opacity(0.2), 0.),
2807                ))
2808        };
2809
2810        v_flex().gap_1().mb_2().map(|element| {
2811            if !needs_confirmation_tools {
2812                element.child(
2813                    v_flex()
2814                        .child(
2815                            h_flex()
2816                                .group("disclosure-header")
2817                                .relative()
2818                                .gap_1p5()
2819                                .justify_between()
2820                                .opacity(0.8)
2821                                .hover(|style| style.opacity(1.))
2822                                .when(!is_status_finished, |this| this.pr_2())
2823                                .child(
2824                                    h_flex()
2825                                        .id("tool-label-container")
2826                                        .gap_1p5()
2827                                        .max_w_full()
2828                                        .overflow_x_scroll()
2829                                        .child(
2830                                            Icon::new(tool_use.icon)
2831                                                .size(IconSize::XSmall)
2832                                                .color(Color::Muted),
2833                                        )
2834                                        .child(
2835                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2836                                                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| {
2837                                                    open_markdown_link(text, workspace.clone(), window, cx);
2838                                                }}))
2839                                            ),
2840                                        ),
2841                                )
2842                                .child(
2843                                    h_flex()
2844                                        .gap_1()
2845                                        .child(
2846                                            div().visible_on_hover("disclosure-header").child(
2847                                                Disclosure::new("tool-use-disclosure", is_open)
2848                                                    .opened_icon(IconName::ChevronUp)
2849                                                    .closed_icon(IconName::ChevronDown)
2850                                                    .on_click(cx.listener({
2851                                                        let tool_use_id = tool_use.id.clone();
2852                                                        move |this, _event, _window, _cx| {
2853                                                            let is_open = this
2854                                                                .expanded_tool_uses
2855                                                                .entry(tool_use_id.clone())
2856                                                                .or_insert(false);
2857
2858                                                            *is_open = !*is_open;
2859                                                        }
2860                                                    })),
2861                                            ),
2862                                        )
2863                                        .child(status_icons),
2864                                )
2865                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2866                        )
2867                        .map(|parent| {
2868                            if !is_open {
2869                                return parent;
2870                            }
2871
2872                            parent.child(
2873                                v_flex()
2874                                    .mt_1()
2875                                    .border_1()
2876                                    .border_color(self.tool_card_border_color(cx))
2877                                    .bg(cx.theme().colors().editor_background)
2878                                    .rounded_lg()
2879                                    .child(results_content),
2880                            )
2881                        }),
2882                )
2883            } else {
2884                v_flex()
2885                    .mb_2()
2886                    .rounded_lg()
2887                    .border_1()
2888                    .border_color(self.tool_card_border_color(cx))
2889                    .overflow_hidden()
2890                    .child(
2891                        h_flex()
2892                            .group("disclosure-header")
2893                            .relative()
2894                            .justify_between()
2895                            .py_1()
2896                            .map(|element| {
2897                                if is_status_finished {
2898                                    element.pl_2().pr_0p5()
2899                                } else {
2900                                    element.px_2()
2901                                }
2902                            })
2903                            .bg(self.tool_card_header_bg(cx))
2904                            .map(|element| {
2905                                if is_open {
2906                                    element.border_b_1().rounded_t_md()
2907                                } else if needs_confirmation {
2908                                    element.rounded_t_md()
2909                                } else {
2910                                    element.rounded_md()
2911                                }
2912                            })
2913                            .border_color(self.tool_card_border_color(cx))
2914                            .child(
2915                                h_flex()
2916                                    .id("tool-label-container")
2917                                    .gap_1p5()
2918                                    .max_w_full()
2919                                    .overflow_x_scroll()
2920                                    .child(
2921                                        Icon::new(tool_use.icon)
2922                                            .size(IconSize::XSmall)
2923                                            .color(Color::Muted),
2924                                    )
2925                                    .child(
2926                                        h_flex().pr_8().text_ui_sm(cx).children(
2927                                            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| {
2928                                                open_markdown_link(text, workspace.clone(), window, cx);
2929                                            }}))
2930                                        ),
2931                                    ),
2932                            )
2933                            .child(
2934                                h_flex()
2935                                    .gap_1()
2936                                    .child(
2937                                        div().visible_on_hover("disclosure-header").child(
2938                                            Disclosure::new("tool-use-disclosure", is_open)
2939                                                .opened_icon(IconName::ChevronUp)
2940                                                .closed_icon(IconName::ChevronDown)
2941                                                .on_click(cx.listener({
2942                                                    let tool_use_id = tool_use.id.clone();
2943                                                    move |this, _event, _window, _cx| {
2944                                                        let is_open = this
2945                                                            .expanded_tool_uses
2946                                                            .entry(tool_use_id.clone())
2947                                                            .or_insert(false);
2948
2949                                                        *is_open = !*is_open;
2950                                                    }
2951                                                })),
2952                                        ),
2953                                    )
2954                                    .child(status_icons),
2955                            )
2956                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2957                    )
2958                    .map(|parent| {
2959                        if !is_open {
2960                            return parent;
2961                        }
2962
2963                        parent.child(
2964                            v_flex()
2965                                .bg(cx.theme().colors().editor_background)
2966                                .map(|element| {
2967                                    if  needs_confirmation {
2968                                        element.rounded_none()
2969                                    } else {
2970                                        element.rounded_b_lg()
2971                                    }
2972                                })
2973                                .child(results_content),
2974                        )
2975                    })
2976                    .when(needs_confirmation, |this| {
2977                        this.child(
2978                            h_flex()
2979                                .py_1()
2980                                .pl_2()
2981                                .pr_1()
2982                                .gap_1()
2983                                .justify_between()
2984                                .bg(cx.theme().colors().editor_background)
2985                                .border_t_1()
2986                                .border_color(self.tool_card_border_color(cx))
2987                                .rounded_b_lg()
2988                                .child(
2989                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
2990                                )
2991                                .child(
2992                                    h_flex()
2993                                        .gap_0p5()
2994                                        .child({
2995                                            let tool_id = tool_use.id.clone();
2996                                            Button::new(
2997                                                "always-allow-tool-action",
2998                                                "Always Allow",
2999                                            )
3000                                            .label_size(LabelSize::Small)
3001                                            .icon(IconName::CheckDouble)
3002                                            .icon_position(IconPosition::Start)
3003                                            .icon_size(IconSize::Small)
3004                                            .icon_color(Color::Success)
3005                                            .tooltip(move |window, cx|  {
3006                                                Tooltip::with_meta(
3007                                                    "Never ask for permission",
3008                                                    None,
3009                                                    "Restore the original behavior in your Agent Panel settings",
3010                                                    window,
3011                                                    cx,
3012                                                )
3013                                            })
3014                                            .on_click(cx.listener(
3015                                                move |this, event, window, cx| {
3016                                                    if let Some(fs) = fs.clone() {
3017                                                        update_settings_file::<AssistantSettings>(
3018                                                            fs.clone(),
3019                                                            cx,
3020                                                            |settings, _| {
3021                                                                settings.set_always_allow_tool_actions(true);
3022                                                            },
3023                                                        );
3024                                                    }
3025                                                    this.handle_allow_tool(
3026                                                        tool_id.clone(),
3027                                                        event,
3028                                                        window,
3029                                                        cx,
3030                                                    )
3031                                                },
3032                                            ))
3033                                        })
3034                                        .child(ui::Divider::vertical())
3035                                        .child({
3036                                            let tool_id = tool_use.id.clone();
3037                                            Button::new("allow-tool-action", "Allow")
3038                                                .label_size(LabelSize::Small)
3039                                                .icon(IconName::Check)
3040                                                .icon_position(IconPosition::Start)
3041                                                .icon_size(IconSize::Small)
3042                                                .icon_color(Color::Success)
3043                                                .on_click(cx.listener(
3044                                                    move |this, event, window, cx| {
3045                                                        this.handle_allow_tool(
3046                                                            tool_id.clone(),
3047                                                            event,
3048                                                            window,
3049                                                            cx,
3050                                                        )
3051                                                    },
3052                                                ))
3053                                        })
3054                                        .child({
3055                                            let tool_id = tool_use.id.clone();
3056                                            let tool_name: Arc<str> = tool_use.name.into();
3057                                            Button::new("deny-tool", "Deny")
3058                                                .label_size(LabelSize::Small)
3059                                                .icon(IconName::Close)
3060                                                .icon_position(IconPosition::Start)
3061                                                .icon_size(IconSize::Small)
3062                                                .icon_color(Color::Error)
3063                                                .on_click(cx.listener(
3064                                                    move |this, event, window, cx| {
3065                                                        this.handle_deny_tool(
3066                                                            tool_id.clone(),
3067                                                            tool_name.clone(),
3068                                                            event,
3069                                                            window,
3070                                                            cx,
3071                                                        )
3072                                                    },
3073                                                ))
3074                                        }),
3075                                ),
3076                        )
3077                    })
3078            }
3079        }).into_any_element()
3080    }
3081
3082    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3083        let project_context = self.thread.read(cx).project_context();
3084        let project_context = project_context.borrow();
3085        let Some(project_context) = project_context.as_ref() else {
3086            return div().into_any();
3087        };
3088
3089        let user_rules_text = if project_context.user_rules.is_empty() {
3090            None
3091        } else if project_context.user_rules.len() == 1 {
3092            let user_rules = &project_context.user_rules[0];
3093
3094            match user_rules.title.as_ref() {
3095                Some(title) => Some(format!("Using \"{title}\" user rule")),
3096                None => Some("Using user rule".into()),
3097            }
3098        } else {
3099            Some(format!(
3100                "Using {} user rules",
3101                project_context.user_rules.len()
3102            ))
3103        };
3104
3105        let first_user_rules_id = project_context
3106            .user_rules
3107            .first()
3108            .map(|user_rules| user_rules.uuid.0);
3109
3110        let rules_files = project_context
3111            .worktrees
3112            .iter()
3113            .filter_map(|worktree| worktree.rules_file.as_ref())
3114            .collect::<Vec<_>>();
3115
3116        let rules_file_text = match rules_files.as_slice() {
3117            &[] => None,
3118            &[rules_file] => Some(format!(
3119                "Using project {:?} file",
3120                rules_file.path_in_worktree
3121            )),
3122            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3123        };
3124
3125        if user_rules_text.is_none() && rules_file_text.is_none() {
3126            return div().into_any();
3127        }
3128
3129        v_flex()
3130            .pt_2()
3131            .px_2p5()
3132            .gap_1()
3133            .when_some(user_rules_text, |parent, user_rules_text| {
3134                parent.child(
3135                    h_flex()
3136                        .w_full()
3137                        .child(
3138                            Icon::new(RULES_ICON)
3139                                .size(IconSize::XSmall)
3140                                .color(Color::Disabled),
3141                        )
3142                        .child(
3143                            Label::new(user_rules_text)
3144                                .size(LabelSize::XSmall)
3145                                .color(Color::Muted)
3146                                .truncate()
3147                                .buffer_font(cx)
3148                                .ml_1p5()
3149                                .mr_0p5(),
3150                        )
3151                        .child(
3152                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3153                                .shape(ui::IconButtonShape::Square)
3154                                .icon_size(IconSize::XSmall)
3155                                .icon_color(Color::Ignored)
3156                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3157                                .tooltip(Tooltip::text("View User Rules"))
3158                                .on_click(move |_event, window, cx| {
3159                                    window.dispatch_action(
3160                                        Box::new(OpenRulesLibrary {
3161                                            prompt_to_select: first_user_rules_id,
3162                                        }),
3163                                        cx,
3164                                    )
3165                                }),
3166                        ),
3167                )
3168            })
3169            .when_some(rules_file_text, |parent, rules_file_text| {
3170                parent.child(
3171                    h_flex()
3172                        .w_full()
3173                        .child(
3174                            Icon::new(IconName::File)
3175                                .size(IconSize::XSmall)
3176                                .color(Color::Disabled),
3177                        )
3178                        .child(
3179                            Label::new(rules_file_text)
3180                                .size(LabelSize::XSmall)
3181                                .color(Color::Muted)
3182                                .buffer_font(cx)
3183                                .ml_1p5()
3184                                .mr_0p5(),
3185                        )
3186                        .child(
3187                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3188                                .shape(ui::IconButtonShape::Square)
3189                                .icon_size(IconSize::XSmall)
3190                                .icon_color(Color::Ignored)
3191                                .on_click(cx.listener(Self::handle_open_rules))
3192                                .tooltip(Tooltip::text("View Rules")),
3193                        ),
3194                )
3195            })
3196            .into_any()
3197    }
3198
3199    fn handle_allow_tool(
3200        &mut self,
3201        tool_use_id: LanguageModelToolUseId,
3202        _: &ClickEvent,
3203        window: &mut Window,
3204        cx: &mut Context<Self>,
3205    ) {
3206        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3207            .thread
3208            .read(cx)
3209            .pending_tool(&tool_use_id)
3210            .map(|tool_use| tool_use.status.clone())
3211        {
3212            self.thread.update(cx, |thread, cx| {
3213                thread.run_tool(
3214                    c.tool_use_id.clone(),
3215                    c.ui_text.clone(),
3216                    c.input.clone(),
3217                    &c.messages,
3218                    c.tool.clone(),
3219                    Some(window.window_handle()),
3220                    cx,
3221                );
3222            });
3223        }
3224    }
3225
3226    fn handle_deny_tool(
3227        &mut self,
3228        tool_use_id: LanguageModelToolUseId,
3229        tool_name: Arc<str>,
3230        _: &ClickEvent,
3231        window: &mut Window,
3232        cx: &mut Context<Self>,
3233    ) {
3234        let window_handle = window.window_handle();
3235        self.thread.update(cx, |thread, cx| {
3236            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3237        });
3238    }
3239
3240    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3241        let project_context = self.thread.read(cx).project_context();
3242        let project_context = project_context.borrow();
3243        let Some(project_context) = project_context.as_ref() else {
3244            return;
3245        };
3246
3247        let project_entry_ids = project_context
3248            .worktrees
3249            .iter()
3250            .flat_map(|worktree| worktree.rules_file.as_ref())
3251            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3252            .collect::<Vec<_>>();
3253
3254        self.workspace
3255            .update(cx, move |workspace, cx| {
3256                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3257                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3258                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3259                let project = workspace.project().read(cx);
3260                let project_paths = project_entry_ids
3261                    .into_iter()
3262                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3263                    .collect::<Vec<_>>();
3264                for project_path in project_paths {
3265                    workspace
3266                        .open_path(project_path, None, true, window, cx)
3267                        .detach_and_log_err(cx);
3268                }
3269            })
3270            .ok();
3271    }
3272
3273    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3274        for window in self.notifications.drain(..) {
3275            window
3276                .update(cx, |_, window, _| {
3277                    window.remove_window();
3278                })
3279                .ok();
3280
3281            self.notification_subscriptions.remove(&window);
3282        }
3283    }
3284
3285    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3286        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3287            return None;
3288        }
3289
3290        Some(
3291            div()
3292                .occlude()
3293                .id("active-thread-scrollbar")
3294                .on_mouse_move(cx.listener(|_, _, _, cx| {
3295                    cx.notify();
3296                    cx.stop_propagation()
3297                }))
3298                .on_hover(|_, _, cx| {
3299                    cx.stop_propagation();
3300                })
3301                .on_any_mouse_down(|_, _, cx| {
3302                    cx.stop_propagation();
3303                })
3304                .on_mouse_up(
3305                    MouseButton::Left,
3306                    cx.listener(|_, _, _, cx| {
3307                        cx.stop_propagation();
3308                    }),
3309                )
3310                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3311                    cx.notify();
3312                }))
3313                .h_full()
3314                .absolute()
3315                .right_1()
3316                .top_1()
3317                .bottom_0()
3318                .w(px(12.))
3319                .cursor_default()
3320                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3321        )
3322    }
3323
3324    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3325        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3326        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3327            cx.background_executor()
3328                .timer(SCROLLBAR_SHOW_INTERVAL)
3329                .await;
3330            thread
3331                .update(cx, |thread, cx| {
3332                    if !thread.scrollbar_state.is_dragging() {
3333                        thread.show_scrollbar = false;
3334                        cx.notify();
3335                    }
3336                })
3337                .log_err();
3338        }))
3339    }
3340}
3341
3342pub enum ActiveThreadEvent {
3343    EditingMessageTokenCountChanged,
3344}
3345
3346impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3347
3348impl Render for ActiveThread {
3349    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3350        v_flex()
3351            .size_full()
3352            .relative()
3353            .on_mouse_move(cx.listener(|this, _, _, cx| {
3354                this.show_scrollbar = true;
3355                this.hide_scrollbar_later(cx);
3356                cx.notify();
3357            }))
3358            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3359                this.show_scrollbar = true;
3360                this.hide_scrollbar_later(cx);
3361                cx.notify();
3362            }))
3363            .on_mouse_up(
3364                MouseButton::Left,
3365                cx.listener(|this, _, _, cx| {
3366                    this.hide_scrollbar_later(cx);
3367                }),
3368            )
3369            .child(list(self.list_state.clone()).flex_grow())
3370            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3371                this.child(scrollbar)
3372            })
3373    }
3374}
3375
3376pub(crate) fn open_context(
3377    context: &AgentContextHandle,
3378    workspace: Entity<Workspace>,
3379    window: &mut Window,
3380    cx: &mut App,
3381) {
3382    match context {
3383        AgentContextHandle::File(file_context) => {
3384            if let Some(project_path) = file_context.project_path(cx) {
3385                workspace.update(cx, |workspace, cx| {
3386                    workspace
3387                        .open_path(project_path, None, true, window, cx)
3388                        .detach_and_log_err(cx);
3389                });
3390            }
3391        }
3392
3393        AgentContextHandle::Directory(directory_context) => {
3394            let entry_id = directory_context.entry_id;
3395            workspace.update(cx, |workspace, cx| {
3396                workspace.project().update(cx, |_project, cx| {
3397                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3398                })
3399            })
3400        }
3401
3402        AgentContextHandle::Symbol(symbol_context) => {
3403            let buffer = symbol_context.buffer.read(cx);
3404            if let Some(project_path) = buffer.project_path(cx) {
3405                let snapshot = buffer.snapshot();
3406                let target_position = symbol_context.range.start.to_point(&snapshot);
3407                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3408                    .detach();
3409            }
3410        }
3411
3412        AgentContextHandle::Selection(selection_context) => {
3413            let buffer = selection_context.buffer.read(cx);
3414            if let Some(project_path) = buffer.project_path(cx) {
3415                let snapshot = buffer.snapshot();
3416                let target_position = selection_context.range.start.to_point(&snapshot);
3417
3418                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3419                    .detach();
3420            }
3421        }
3422
3423        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3424            cx.open_url(&fetched_url_context.url);
3425        }
3426
3427        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3428            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3429                panel.update(cx, |panel, cx| {
3430                    let thread_id = thread_context.thread.read(cx).id().clone();
3431                    panel
3432                        .open_thread_by_id(&thread_id, window, cx)
3433                        .detach_and_log_err(cx)
3434                });
3435            }
3436        }),
3437
3438        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3439            Box::new(OpenRulesLibrary {
3440                prompt_to_select: Some(rules_context.prompt_id.0),
3441            }),
3442            cx,
3443        ),
3444
3445        AgentContextHandle::Image(_) => {}
3446    }
3447}
3448
3449fn open_editor_at_position(
3450    project_path: project::ProjectPath,
3451    target_position: Point,
3452    workspace: &Entity<Workspace>,
3453    window: &mut Window,
3454    cx: &mut App,
3455) -> Task<()> {
3456    let open_task = workspace.update(cx, |workspace, cx| {
3457        workspace.open_path(project_path, None, true, window, cx)
3458    });
3459    window.spawn(cx, async move |cx| {
3460        if let Some(active_editor) = open_task
3461            .await
3462            .log_err()
3463            .and_then(|item| item.downcast::<Editor>())
3464        {
3465            active_editor
3466                .downgrade()
3467                .update_in(cx, |editor, window, cx| {
3468                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3469                })
3470                .log_err();
3471        }
3472    })
3473}