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, QueueState, Thread,
   8    ThreadError, 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_last_message
1737            .then(|| match (thread.queue_state(), is_generating) {
1738                (Some(QueueState::Sending), _) => Some(
1739                    AnimatedLabel::new("Sending")
1740                        .size(LabelSize::Small)
1741                        .into_any_element(),
1742                ),
1743                (Some(QueueState::Queued { position }), _) => Some(
1744                    Label::new(format!("Queue position: {position}"))
1745                        .size(LabelSize::Small)
1746                        .color(Color::Muted)
1747                        .into_any_element(),
1748                ),
1749                (_, true) => Some(
1750                    AnimatedLabel::new("Generating")
1751                        .size(LabelSize::Small)
1752                        .into_any_element(),
1753                ),
1754                _ => None,
1755            })
1756            .flatten();
1757
1758        let editing_message_state = self
1759            .editing_message
1760            .as_ref()
1761            .filter(|(id, _)| *id == message_id)
1762            .map(|(_, state)| state);
1763
1764        let colors = cx.theme().colors();
1765        let editor_bg_color = colors.editor_background;
1766
1767        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1768            .shape(ui::IconButtonShape::Square)
1769            .icon_size(IconSize::XSmall)
1770            .icon_color(Color::Ignored)
1771            .tooltip(Tooltip::text("Open Thread as Markdown"))
1772            .on_click(|_, window, cx| {
1773                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1774            });
1775
1776        // For all items that should be aligned with the LLM's response.
1777        const RESPONSE_PADDING_X: Pixels = px(19.);
1778
1779        let feedback_container = h_flex()
1780            .group("feedback_container")
1781            .mt_1()
1782            .py_2()
1783            .px(RESPONSE_PADDING_X)
1784            .gap_1()
1785            .flex_wrap()
1786            .justify_end();
1787        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1788            Some(feedback) => feedback_container
1789                .child(
1790                    div().mr_1().visible_on_hover("feedback_container").child(
1791                        Label::new(match feedback {
1792                            ThreadFeedback::Positive => "Thanks for your feedback!",
1793                            ThreadFeedback::Negative => {
1794                                "We appreciate your feedback and will use it to improve."
1795                            }
1796                        })
1797                    .color(Color::Muted)
1798                    .size(LabelSize::XSmall)
1799                    .truncate())
1800                )
1801                .child(
1802                    h_flex()
1803                        .pr_1()
1804                        .gap_1()
1805                        .child(
1806                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1807                                .shape(ui::IconButtonShape::Square)
1808                                .icon_size(IconSize::XSmall)
1809                                .icon_color(match feedback {
1810                                    ThreadFeedback::Positive => Color::Accent,
1811                                    ThreadFeedback::Negative => Color::Ignored,
1812                                })
1813                                .tooltip(Tooltip::text("Helpful Response"))
1814                                .on_click(cx.listener(move |this, _, window, cx| {
1815                                    this.handle_feedback_click(
1816                                        message_id,
1817                                        ThreadFeedback::Positive,
1818                                        window,
1819                                        cx,
1820                                    );
1821                                })),
1822                        )
1823                        .child(
1824                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1825                                .shape(ui::IconButtonShape::Square)
1826                                .icon_size(IconSize::XSmall)
1827                                .icon_color(match feedback {
1828                                    ThreadFeedback::Positive => Color::Ignored,
1829                                    ThreadFeedback::Negative => Color::Accent,
1830                                })
1831                                .tooltip(Tooltip::text("Not Helpful"))
1832                                .on_click(cx.listener(move |this, _, window, cx| {
1833                                    this.handle_feedback_click(
1834                                        message_id,
1835                                        ThreadFeedback::Negative,
1836                                        window,
1837                                        cx,
1838                                    );
1839                                })),
1840                        )
1841                        .child(open_as_markdown),
1842                )
1843                .into_any_element(),
1844            None => feedback_container
1845                .child(
1846                    div().mr_1().visible_on_hover("feedback_container").child(
1847                        Label::new(
1848                            "Rating the thread sends all of your current conversation to the Zed team.",
1849                        )
1850                        .color(Color::Muted)
1851                    .size(LabelSize::XSmall)
1852                    .truncate())
1853                )
1854                .child(
1855                    h_flex()
1856                        .pr_1()
1857                        .gap_1()
1858                        .child(
1859                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1860                                .icon_size(IconSize::XSmall)
1861                                .icon_color(Color::Ignored)
1862                                .shape(ui::IconButtonShape::Square)
1863                                .tooltip(Tooltip::text("Helpful Response"))
1864                                .on_click(cx.listener(move |this, _, window, cx| {
1865                                    this.handle_feedback_click(
1866                                        message_id,
1867                                        ThreadFeedback::Positive,
1868                                        window,
1869                                        cx,
1870                                    );
1871                                })),
1872                        )
1873                        .child(
1874                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1875                                .icon_size(IconSize::XSmall)
1876                                .icon_color(Color::Ignored)
1877                                .shape(ui::IconButtonShape::Square)
1878                                .tooltip(Tooltip::text("Not Helpful"))
1879                                .on_click(cx.listener(move |this, _, window, cx| {
1880                                    this.handle_feedback_click(
1881                                        message_id,
1882                                        ThreadFeedback::Negative,
1883                                        window,
1884                                        cx,
1885                                    );
1886                                })),
1887                        )
1888                        .child(open_as_markdown),
1889                )
1890                .into_any_element(),
1891        };
1892
1893        let message_is_empty = message.should_display_content();
1894        let has_content = !message_is_empty || !added_context.is_empty();
1895
1896        let message_content = has_content.then(|| {
1897            if let Some(state) = editing_message_state.as_ref() {
1898                self.render_edit_message_editor(state, window, cx)
1899                    .into_any_element()
1900            } else {
1901                v_flex()
1902                    .w_full()
1903                    .gap_1()
1904                    .when(!message_is_empty, |parent| {
1905                        parent.child(div().min_h_6().child(self.render_message_content(
1906                            message_id,
1907                            rendered_message,
1908                            has_tool_uses,
1909                            workspace.clone(),
1910                            window,
1911                            cx,
1912                        )))
1913                    })
1914                    .when(!added_context.is_empty(), |parent| {
1915                        parent.child(h_flex().flex_wrap().gap_1().children(
1916                            added_context.into_iter().map(|added_context| {
1917                                let context = added_context.handle.clone();
1918                                ContextPill::added(added_context, false, false, None).on_click(
1919                                    Rc::new(cx.listener({
1920                                        let workspace = workspace.clone();
1921                                        move |_, _, window, cx| {
1922                                            if let Some(workspace) = workspace.upgrade() {
1923                                                open_context(&context, workspace, window, cx);
1924                                                cx.notify();
1925                                            }
1926                                            cx.stop_propagation();
1927                                        }
1928                                    })),
1929                                )
1930                            }),
1931                        ))
1932                    })
1933                    .into_any_element()
1934            }
1935        });
1936
1937        let styled_message = match message.role {
1938            Role::User => v_flex()
1939                .id(("message-container", ix))
1940                .pt_2()
1941                .pl_2()
1942                .pr_2p5()
1943                .pb_4()
1944                .child(
1945                    v_flex()
1946                        .id(("user-message", ix))
1947                        .bg(editor_bg_color)
1948                        .rounded_lg()
1949                        .shadow_md()
1950                        .border_1()
1951                        .border_color(colors.border)
1952                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1953                        .cursor_pointer()
1954                        .child(
1955                            h_flex()
1956                                .p_2p5()
1957                                .gap_1()
1958                                .children(message_content)
1959                                .when_some(editing_message_state, |this, state| {
1960                                    let focus_handle = state.editor.focus_handle(cx).clone();
1961                                    this.w_full().justify_between().child(
1962                                        h_flex()
1963                                            .gap_0p5()
1964                                            .child(
1965                                                IconButton::new(
1966                                                    "cancel-edit-message",
1967                                                    IconName::Close,
1968                                                )
1969                                                .shape(ui::IconButtonShape::Square)
1970                                                .icon_color(Color::Error)
1971                                                .tooltip({
1972                                                    let focus_handle = focus_handle.clone();
1973                                                    move |window, cx| {
1974                                                        Tooltip::for_action_in(
1975                                                            "Cancel Edit",
1976                                                            &menu::Cancel,
1977                                                            &focus_handle,
1978                                                            window,
1979                                                            cx,
1980                                                        )
1981                                                    }
1982                                                })
1983                                                .on_click(cx.listener(Self::handle_cancel_click)),
1984                                            )
1985                                            .child(
1986                                                IconButton::new(
1987                                                    "confirm-edit-message",
1988                                                    IconName::Check,
1989                                                )
1990                                                .disabled(state.editor.read(cx).is_empty(cx))
1991                                                .shape(ui::IconButtonShape::Square)
1992                                                .icon_color(Color::Success)
1993                                                .tooltip({
1994                                                    let focus_handle = focus_handle.clone();
1995                                                    move |window, cx| {
1996                                                        Tooltip::for_action_in(
1997                                                            "Regenerate",
1998                                                            &menu::Confirm,
1999                                                            &focus_handle,
2000                                                            window,
2001                                                            cx,
2002                                                        )
2003                                                    }
2004                                                })
2005                                                .on_click(
2006                                                    cx.listener(Self::handle_regenerate_click),
2007                                                ),
2008                                            ),
2009                                    )
2010                                }),
2011                        )
2012                        .on_click(cx.listener({
2013                            let message_segments = message.segments.clone();
2014                            move |this, _, window, cx| {
2015                                this.start_editing_message(
2016                                    message_id,
2017                                    &message_segments,
2018                                    &message_creases,
2019                                    window,
2020                                    cx,
2021                                );
2022                            }
2023                        })),
2024                ),
2025            Role::Assistant => v_flex()
2026                .id(("message-container", ix))
2027                .px(RESPONSE_PADDING_X)
2028                .gap_2()
2029                .children(message_content)
2030                .when(has_tool_uses, |parent| {
2031                    parent.children(tool_uses.into_iter().map(|tool_use| {
2032                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2033                    }))
2034                }),
2035            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2036                v_flex()
2037                    .bg(colors.editor_background)
2038                    .rounded_sm()
2039                    .child(div().p_4().children(message_content)),
2040            ),
2041        };
2042
2043        let after_editing_message = self
2044            .editing_message
2045            .as_ref()
2046            .map_or(false, |(editing_message_id, _)| {
2047                message_id > *editing_message_id
2048            });
2049
2050        let panel_background = cx.theme().colors().panel_background;
2051
2052        v_flex()
2053            .w_full()
2054            .when_some(checkpoint, |parent, checkpoint| {
2055                let mut is_pending = false;
2056                let mut error = None;
2057                if let Some(last_restore_checkpoint) =
2058                    self.thread.read(cx).last_restore_checkpoint()
2059                {
2060                    if last_restore_checkpoint.message_id() == message_id {
2061                        match last_restore_checkpoint {
2062                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2063                            LastRestoreCheckpoint::Error { error: err, .. } => {
2064                                error = Some(err.clone());
2065                            }
2066                        }
2067                    }
2068                }
2069
2070                let restore_checkpoint_button =
2071                    Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2072                        .icon(if error.is_some() {
2073                            IconName::XCircle
2074                        } else {
2075                            IconName::Undo
2076                        })
2077                        .icon_size(IconSize::XSmall)
2078                        .icon_position(IconPosition::Start)
2079                        .icon_color(if error.is_some() {
2080                            Some(Color::Error)
2081                        } else {
2082                            None
2083                        })
2084                        .label_size(LabelSize::XSmall)
2085                        .disabled(is_pending)
2086                        .on_click(cx.listener(move |this, _, _window, cx| {
2087                            this.thread.update(cx, |thread, cx| {
2088                                thread
2089                                    .restore_checkpoint(checkpoint.clone(), cx)
2090                                    .detach_and_log_err(cx);
2091                            });
2092                        }));
2093
2094                let restore_checkpoint_button = if is_pending {
2095                    restore_checkpoint_button
2096                        .with_animation(
2097                            ("pulsating-restore-checkpoint-button", ix),
2098                            Animation::new(Duration::from_secs(2))
2099                                .repeat()
2100                                .with_easing(pulsating_between(0.6, 1.)),
2101                            |label, delta| label.alpha(delta),
2102                        )
2103                        .into_any_element()
2104                } else if let Some(error) = error {
2105                    restore_checkpoint_button
2106                        .tooltip(Tooltip::text(error.to_string()))
2107                        .into_any_element()
2108                } else {
2109                    restore_checkpoint_button.into_any_element()
2110                };
2111
2112                parent.child(
2113                    h_flex()
2114                        .pt_2p5()
2115                        .px_2p5()
2116                        .w_full()
2117                        .gap_1()
2118                        .child(ui::Divider::horizontal())
2119                        .child(restore_checkpoint_button)
2120                        .child(ui::Divider::horizontal()),
2121                )
2122            })
2123            .when(is_first_message, |parent| {
2124                parent.child(self.render_rules_item(cx))
2125            })
2126            .child(styled_message)
2127            .when_some(generating_label, |this, generating_label| {
2128                this.child(
2129                    h_flex()
2130                        .h_8()
2131                        .mt_2()
2132                        .mb_4()
2133                        .ml_4()
2134                        .py_1p5()
2135                        .child(generating_label),
2136                )
2137            })
2138            .when(show_feedback, move |parent| {
2139                parent.child(feedback_items).when_some(
2140                    self.open_feedback_editors.get(&message_id),
2141                    move |parent, feedback_editor| {
2142                        let focus_handle = feedback_editor.focus_handle(cx);
2143                        parent.child(
2144                            v_flex()
2145                                .key_context("AgentFeedbackMessageEditor")
2146                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2147                                    this.open_feedback_editors.remove(&message_id);
2148                                    cx.notify();
2149                                }))
2150                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2151                                    this.submit_feedback_message(message_id, cx);
2152                                    cx.notify();
2153                                }))
2154                                .on_action(cx.listener(Self::confirm_editing_message))
2155                                .mb_2()
2156                                .mx_4()
2157                                .p_2()
2158                                .rounded_md()
2159                                .border_1()
2160                                .border_color(cx.theme().colors().border)
2161                                .bg(cx.theme().colors().editor_background)
2162                                .child(feedback_editor.clone())
2163                                .child(
2164                                    h_flex()
2165                                        .gap_1()
2166                                        .justify_end()
2167                                        .child(
2168                                            Button::new("dismiss-feedback-message", "Cancel")
2169                                                .label_size(LabelSize::Small)
2170                                                .key_binding(
2171                                                    KeyBinding::for_action_in(
2172                                                        &menu::Cancel,
2173                                                        &focus_handle,
2174                                                        window,
2175                                                        cx,
2176                                                    )
2177                                                    .map(|kb| kb.size(rems_from_px(10.))),
2178                                                )
2179                                                .on_click(cx.listener(
2180                                                    move |this, _, _window, cx| {
2181                                                        this.open_feedback_editors
2182                                                            .remove(&message_id);
2183                                                        cx.notify();
2184                                                    },
2185                                                )),
2186                                        )
2187                                        .child(
2188                                            Button::new(
2189                                                "submit-feedback-message",
2190                                                "Share Feedback",
2191                                            )
2192                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2193                                            .label_size(LabelSize::Small)
2194                                            .key_binding(
2195                                                KeyBinding::for_action_in(
2196                                                    &menu::Confirm,
2197                                                    &focus_handle,
2198                                                    window,
2199                                                    cx,
2200                                                )
2201                                                .map(|kb| kb.size(rems_from_px(10.))),
2202                                            )
2203                                            .on_click(
2204                                                cx.listener(move |this, _, _window, cx| {
2205                                                    this.submit_feedback_message(message_id, cx);
2206                                                    cx.notify()
2207                                                }),
2208                                            ),
2209                                        ),
2210                                ),
2211                        )
2212                    },
2213                )
2214            })
2215            .when(after_editing_message, |parent| {
2216                // Backdrop to dim out the whole thread below the editing user message
2217                parent.relative().child(
2218                    div()
2219                        .occlude()
2220                        .absolute()
2221                        .inset_0()
2222                        .size_full()
2223                        .bg(panel_background)
2224                        .opacity(0.8),
2225                )
2226            })
2227            .into_any()
2228    }
2229
2230    fn render_message_content(
2231        &self,
2232        message_id: MessageId,
2233        rendered_message: &RenderedMessage,
2234        has_tool_uses: bool,
2235        workspace: WeakEntity<Workspace>,
2236        window: &Window,
2237        cx: &Context<Self>,
2238    ) -> impl IntoElement {
2239        let is_last_message = self.messages.last() == Some(&message_id);
2240        let is_generating = self.thread.read(cx).is_generating();
2241        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2242            rendered_message
2243                .segments
2244                .iter()
2245                .enumerate()
2246                .next_back()
2247                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2248                .map(|(index, _)| index)
2249        } else {
2250            None
2251        };
2252
2253        let message_role = self
2254            .thread
2255            .read(cx)
2256            .message(message_id)
2257            .map(|m| m.role)
2258            .unwrap_or(Role::User);
2259
2260        let is_assistant_message = message_role == Role::Assistant;
2261        let is_user_message = message_role == Role::User;
2262
2263        v_flex()
2264            .text_ui(cx)
2265            .gap_2()
2266            .when(is_user_message, |this| this.text_xs())
2267            .children(
2268                rendered_message.segments.iter().enumerate().map(
2269                    |(index, segment)| match segment {
2270                        RenderedMessageSegment::Thinking {
2271                            content,
2272                            scroll_handle,
2273                        } => self
2274                            .render_message_thinking_segment(
2275                                message_id,
2276                                index,
2277                                content.clone(),
2278                                &scroll_handle,
2279                                Some(index) == pending_thinking_segment_index,
2280                                window,
2281                                cx,
2282                            )
2283                            .into_any_element(),
2284                        RenderedMessageSegment::Text(markdown) => {
2285                            let markdown_element = MarkdownElement::new(
2286                                markdown.clone(),
2287                                if is_user_message {
2288                                    let mut style = default_markdown_style(window, cx);
2289                                    let mut text_style = window.text_style();
2290                                    let theme_settings = ThemeSettings::get_global(cx);
2291
2292                                    let buffer_font = theme_settings.buffer_font.family.clone();
2293                                    let buffer_font_size = TextSize::Small.rems(cx);
2294
2295                                    text_style.refine(&TextStyleRefinement {
2296                                        font_family: Some(buffer_font),
2297                                        font_size: Some(buffer_font_size.into()),
2298                                        ..Default::default()
2299                                    });
2300
2301                                    style.base_text_style = text_style;
2302                                    style
2303                                } else {
2304                                    default_markdown_style(window, cx)
2305                                },
2306                            );
2307
2308                            let markdown_element = if is_assistant_message {
2309                                markdown_element.code_block_renderer(
2310                                    markdown::CodeBlockRenderer::Custom {
2311                                        render: Arc::new({
2312                                            let workspace = workspace.clone();
2313                                            let active_thread = cx.entity();
2314                                            move |kind,
2315                                                  parsed_markdown,
2316                                                  range,
2317                                                  metadata,
2318                                                  window,
2319                                                  cx| {
2320                                                render_markdown_code_block(
2321                                                    message_id,
2322                                                    range.start,
2323                                                    kind,
2324                                                    parsed_markdown,
2325                                                    metadata,
2326                                                    active_thread.clone(),
2327                                                    workspace.clone(),
2328                                                    window,
2329                                                    cx,
2330                                                )
2331                                            }
2332                                        }),
2333                                        transform: Some(Arc::new({
2334                                            let active_thread = cx.entity();
2335                                            let editor_bg = cx.theme().colors().editor_background;
2336
2337                                            move |el, range, metadata, _, cx| {
2338                                                let is_expanded = active_thread
2339                                                    .read(cx)
2340                                                    .expanded_code_blocks
2341                                                    .get(&(message_id, range.start))
2342                                                    .copied()
2343                                                    .unwrap_or(true);
2344
2345                                                if is_expanded
2346                                                    || metadata.line_count
2347                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2348                                                {
2349                                                    return el;
2350                                                }
2351                                                el.child(
2352                                                    div()
2353                                                        .absolute()
2354                                                        .bottom_0()
2355                                                        .left_0()
2356                                                        .w_full()
2357                                                        .h_1_4()
2358                                                        .rounded_b_lg()
2359                                                        .bg(linear_gradient(
2360                                                            0.,
2361                                                            linear_color_stop(editor_bg, 0.),
2362                                                            linear_color_stop(
2363                                                                editor_bg.opacity(0.),
2364                                                                1.,
2365                                                            ),
2366                                                        )),
2367                                                )
2368                                            }
2369                                        })),
2370                                    },
2371                                )
2372                            } else {
2373                                markdown_element.code_block_renderer(
2374                                    markdown::CodeBlockRenderer::Default {
2375                                        copy_button: false,
2376                                        border: true,
2377                                    },
2378                                )
2379                            };
2380
2381                            div()
2382                                .child(markdown_element.on_url_click({
2383                                    let workspace = self.workspace.clone();
2384                                    move |text, window, cx| {
2385                                        open_markdown_link(text, workspace.clone(), window, cx);
2386                                        cx.stop_propagation();
2387                                    }
2388                                }))
2389                                .into_any_element()
2390                        }
2391                    },
2392                ),
2393            )
2394    }
2395
2396    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2397        cx.theme().colors().border.opacity(0.5)
2398    }
2399
2400    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2401        cx.theme()
2402            .colors()
2403            .element_background
2404            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2405    }
2406
2407    fn render_message_thinking_segment(
2408        &self,
2409        message_id: MessageId,
2410        ix: usize,
2411        markdown: Entity<Markdown>,
2412        scroll_handle: &ScrollHandle,
2413        pending: bool,
2414        window: &Window,
2415        cx: &Context<Self>,
2416    ) -> impl IntoElement {
2417        let is_open = self
2418            .expanded_thinking_segments
2419            .get(&(message_id, ix))
2420            .copied()
2421            .unwrap_or_default();
2422
2423        let editor_bg = cx.theme().colors().panel_background;
2424
2425        div().map(|this| {
2426            if pending {
2427                this.v_flex()
2428                    .mt_neg_2()
2429                    .mb_1p5()
2430                    .child(
2431                        h_flex()
2432                            .group("disclosure-header")
2433                            .justify_between()
2434                            .child(
2435                                h_flex()
2436                                    .gap_1p5()
2437                                    .child(
2438                                        Icon::new(IconName::LightBulb)
2439                                            .size(IconSize::XSmall)
2440                                            .color(Color::Muted),
2441                                    )
2442                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2443                            )
2444                            .child(
2445                                h_flex()
2446                                    .gap_1()
2447                                    .child(
2448                                        div().visible_on_hover("disclosure-header").child(
2449                                            Disclosure::new("thinking-disclosure", is_open)
2450                                                .opened_icon(IconName::ChevronUp)
2451                                                .closed_icon(IconName::ChevronDown)
2452                                                .on_click(cx.listener({
2453                                                    move |this, _event, _window, _cx| {
2454                                                        let is_open = this
2455                                                            .expanded_thinking_segments
2456                                                            .entry((message_id, ix))
2457                                                            .or_insert(false);
2458
2459                                                        *is_open = !*is_open;
2460                                                    }
2461                                                })),
2462                                        ),
2463                                    )
2464                                    .child({
2465                                        Icon::new(IconName::ArrowCircle)
2466                                            .color(Color::Accent)
2467                                            .size(IconSize::Small)
2468                                            .with_animation(
2469                                                "arrow-circle",
2470                                                Animation::new(Duration::from_secs(2)).repeat(),
2471                                                |icon, delta| {
2472                                                    icon.transform(Transformation::rotate(
2473                                                        percentage(delta),
2474                                                    ))
2475                                                },
2476                                            )
2477                                    }),
2478                            ),
2479                    )
2480                    .when(!is_open, |this| {
2481                        let gradient_overlay = div()
2482                            .rounded_b_lg()
2483                            .h_full()
2484                            .absolute()
2485                            .w_full()
2486                            .bottom_0()
2487                            .left_0()
2488                            .bg(linear_gradient(
2489                                180.,
2490                                linear_color_stop(editor_bg, 1.),
2491                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2492                            ));
2493
2494                        this.child(
2495                            div()
2496                                .relative()
2497                                .bg(editor_bg)
2498                                .rounded_b_lg()
2499                                .mt_2()
2500                                .pl_4()
2501                                .child(
2502                                    div()
2503                                        .id(("thinking-content", ix))
2504                                        .max_h_20()
2505                                        .track_scroll(scroll_handle)
2506                                        .text_ui_sm(cx)
2507                                        .overflow_hidden()
2508                                        .child(
2509                                            MarkdownElement::new(
2510                                                markdown.clone(),
2511                                                default_markdown_style(window, cx),
2512                                            )
2513                                            .on_url_click({
2514                                                let workspace = self.workspace.clone();
2515                                                move |text, window, cx| {
2516                                                    open_markdown_link(
2517                                                        text,
2518                                                        workspace.clone(),
2519                                                        window,
2520                                                        cx,
2521                                                    );
2522                                                }
2523                                            }),
2524                                        ),
2525                                )
2526                                .child(gradient_overlay),
2527                        )
2528                    })
2529                    .when(is_open, |this| {
2530                        this.child(
2531                            div()
2532                                .id(("thinking-content", ix))
2533                                .h_full()
2534                                .bg(editor_bg)
2535                                .text_ui_sm(cx)
2536                                .child(
2537                                    MarkdownElement::new(
2538                                        markdown.clone(),
2539                                        default_markdown_style(window, cx),
2540                                    )
2541                                    .on_url_click({
2542                                        let workspace = self.workspace.clone();
2543                                        move |text, window, cx| {
2544                                            open_markdown_link(text, workspace.clone(), window, cx);
2545                                        }
2546                                    }),
2547                                ),
2548                        )
2549                    })
2550            } else {
2551                this.v_flex()
2552                    .mt_neg_2()
2553                    .child(
2554                        h_flex()
2555                            .group("disclosure-header")
2556                            .pr_1()
2557                            .justify_between()
2558                            .opacity(0.8)
2559                            .hover(|style| style.opacity(1.))
2560                            .child(
2561                                h_flex()
2562                                    .gap_1p5()
2563                                    .child(
2564                                        Icon::new(IconName::LightBulb)
2565                                            .size(IconSize::XSmall)
2566                                            .color(Color::Muted),
2567                                    )
2568                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2569                            )
2570                            .child(
2571                                div().visible_on_hover("disclosure-header").child(
2572                                    Disclosure::new("thinking-disclosure", is_open)
2573                                        .opened_icon(IconName::ChevronUp)
2574                                        .closed_icon(IconName::ChevronDown)
2575                                        .on_click(cx.listener({
2576                                            move |this, _event, _window, _cx| {
2577                                                let is_open = this
2578                                                    .expanded_thinking_segments
2579                                                    .entry((message_id, ix))
2580                                                    .or_insert(false);
2581
2582                                                *is_open = !*is_open;
2583                                            }
2584                                        })),
2585                                ),
2586                            ),
2587                    )
2588                    .child(
2589                        div()
2590                            .id(("thinking-content", ix))
2591                            .relative()
2592                            .mt_1p5()
2593                            .ml_1p5()
2594                            .pl_2p5()
2595                            .border_l_1()
2596                            .border_color(cx.theme().colors().border_variant)
2597                            .text_ui_sm(cx)
2598                            .when(is_open, |this| {
2599                                this.child(
2600                                    MarkdownElement::new(
2601                                        markdown.clone(),
2602                                        default_markdown_style(window, cx),
2603                                    )
2604                                    .on_url_click({
2605                                        let workspace = self.workspace.clone();
2606                                        move |text, window, cx| {
2607                                            open_markdown_link(text, workspace.clone(), window, cx);
2608                                        }
2609                                    }),
2610                                )
2611                            }),
2612                    )
2613            }
2614        })
2615    }
2616
2617    fn render_tool_use(
2618        &self,
2619        tool_use: ToolUse,
2620        window: &mut Window,
2621        workspace: WeakEntity<Workspace>,
2622        cx: &mut Context<Self>,
2623    ) -> impl IntoElement + use<> {
2624        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2625            return card.render(&tool_use.status, window, workspace, cx);
2626        }
2627
2628        let is_open = self
2629            .expanded_tool_uses
2630            .get(&tool_use.id)
2631            .copied()
2632            .unwrap_or_default();
2633
2634        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2635
2636        let fs = self
2637            .workspace
2638            .upgrade()
2639            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2640        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2641        let needs_confirmation_tools = tool_use.needs_confirmation;
2642
2643        let status_icons = div().child(match &tool_use.status {
2644            ToolUseStatus::NeedsConfirmation => {
2645                let icon = Icon::new(IconName::Warning)
2646                    .color(Color::Warning)
2647                    .size(IconSize::Small);
2648                icon.into_any_element()
2649            }
2650            ToolUseStatus::Pending
2651            | ToolUseStatus::InputStillStreaming
2652            | ToolUseStatus::Running => {
2653                let icon = Icon::new(IconName::ArrowCircle)
2654                    .color(Color::Accent)
2655                    .size(IconSize::Small);
2656                icon.with_animation(
2657                    "arrow-circle",
2658                    Animation::new(Duration::from_secs(2)).repeat(),
2659                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2660                )
2661                .into_any_element()
2662            }
2663            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2664            ToolUseStatus::Error(_) => {
2665                let icon = Icon::new(IconName::Close)
2666                    .color(Color::Error)
2667                    .size(IconSize::Small);
2668                icon.into_any_element()
2669            }
2670        });
2671
2672        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2673        let results_content_container = || v_flex().p_2().gap_0p5();
2674
2675        let results_content = v_flex()
2676            .gap_1()
2677            .child(
2678                results_content_container()
2679                    .child(
2680                        Label::new("Input")
2681                            .size(LabelSize::XSmall)
2682                            .color(Color::Muted)
2683                            .buffer_font(cx),
2684                    )
2685                    .child(
2686                        div()
2687                            .w_full()
2688                            .text_ui_sm(cx)
2689                            .children(rendered_tool_use.as_ref().map(|rendered| {
2690                                MarkdownElement::new(
2691                                    rendered.input.clone(),
2692                                    tool_use_markdown_style(window, cx),
2693                                )
2694                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2695                                    copy_button: false,
2696                                    border: false,
2697                                })
2698                                .on_url_click({
2699                                    let workspace = self.workspace.clone();
2700                                    move |text, window, cx| {
2701                                        open_markdown_link(text, workspace.clone(), window, cx);
2702                                    }
2703                                })
2704                            })),
2705                    ),
2706            )
2707            .map(|container| match tool_use.status {
2708                ToolUseStatus::Finished(_) => container.child(
2709                    results_content_container()
2710                        .border_t_1()
2711                        .border_color(self.tool_card_border_color(cx))
2712                        .child(
2713                            Label::new("Result")
2714                                .size(LabelSize::XSmall)
2715                                .color(Color::Muted)
2716                                .buffer_font(cx),
2717                        )
2718                        .child(div().w_full().text_ui_sm(cx).children(
2719                            rendered_tool_use.as_ref().map(|rendered| {
2720                                MarkdownElement::new(
2721                                    rendered.output.clone(),
2722                                    tool_use_markdown_style(window, cx),
2723                                )
2724                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2725                                    copy_button: false,
2726                                    border: false,
2727                                })
2728                                .on_url_click({
2729                                    let workspace = self.workspace.clone();
2730                                    move |text, window, cx| {
2731                                        open_markdown_link(text, workspace.clone(), window, cx);
2732                                    }
2733                                })
2734                                .into_any_element()
2735                            }),
2736                        )),
2737                ),
2738                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2739                    results_content_container()
2740                        .border_t_1()
2741                        .border_color(self.tool_card_border_color(cx))
2742                        .child(
2743                            h_flex()
2744                                .gap_1()
2745                                .child(
2746                                    Icon::new(IconName::ArrowCircle)
2747                                        .size(IconSize::Small)
2748                                        .color(Color::Accent)
2749                                        .with_animation(
2750                                            "arrow-circle",
2751                                            Animation::new(Duration::from_secs(2)).repeat(),
2752                                            |icon, delta| {
2753                                                icon.transform(Transformation::rotate(percentage(
2754                                                    delta,
2755                                                )))
2756                                            },
2757                                        ),
2758                                )
2759                                .child(
2760                                    Label::new("Running…")
2761                                        .size(LabelSize::XSmall)
2762                                        .color(Color::Muted)
2763                                        .buffer_font(cx),
2764                                ),
2765                        ),
2766                ),
2767                ToolUseStatus::Error(_) => container.child(
2768                    results_content_container()
2769                        .border_t_1()
2770                        .border_color(self.tool_card_border_color(cx))
2771                        .child(
2772                            Label::new("Error")
2773                                .size(LabelSize::XSmall)
2774                                .color(Color::Muted)
2775                                .buffer_font(cx),
2776                        )
2777                        .child(
2778                            div()
2779                                .text_ui_sm(cx)
2780                                .children(rendered_tool_use.as_ref().map(|rendered| {
2781                                    MarkdownElement::new(
2782                                        rendered.output.clone(),
2783                                        tool_use_markdown_style(window, cx),
2784                                    )
2785                                    .on_url_click({
2786                                        let workspace = self.workspace.clone();
2787                                        move |text, window, cx| {
2788                                            open_markdown_link(text, workspace.clone(), window, cx);
2789                                        }
2790                                    })
2791                                    .into_any_element()
2792                                })),
2793                        ),
2794                ),
2795                ToolUseStatus::Pending => container,
2796                ToolUseStatus::NeedsConfirmation => container.child(
2797                    results_content_container()
2798                        .border_t_1()
2799                        .border_color(self.tool_card_border_color(cx))
2800                        .child(
2801                            Label::new("Asking Permission")
2802                                .size(LabelSize::Small)
2803                                .color(Color::Muted)
2804                                .buffer_font(cx),
2805                        ),
2806                ),
2807            });
2808
2809        let gradient_overlay = |color: Hsla| {
2810            div()
2811                .h_full()
2812                .absolute()
2813                .w_12()
2814                .bottom_0()
2815                .map(|element| {
2816                    if is_status_finished {
2817                        element.right_6()
2818                    } else {
2819                        element.right(px(44.))
2820                    }
2821                })
2822                .bg(linear_gradient(
2823                    90.,
2824                    linear_color_stop(color, 1.),
2825                    linear_color_stop(color.opacity(0.2), 0.),
2826                ))
2827        };
2828
2829        v_flex().gap_1().mb_2().map(|element| {
2830            if !needs_confirmation_tools {
2831                element.child(
2832                    v_flex()
2833                        .child(
2834                            h_flex()
2835                                .group("disclosure-header")
2836                                .relative()
2837                                .gap_1p5()
2838                                .justify_between()
2839                                .opacity(0.8)
2840                                .hover(|style| style.opacity(1.))
2841                                .when(!is_status_finished, |this| this.pr_2())
2842                                .child(
2843                                    h_flex()
2844                                        .id("tool-label-container")
2845                                        .gap_1p5()
2846                                        .max_w_full()
2847                                        .overflow_x_scroll()
2848                                        .child(
2849                                            Icon::new(tool_use.icon)
2850                                                .size(IconSize::XSmall)
2851                                                .color(Color::Muted),
2852                                        )
2853                                        .child(
2854                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2855                                                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| {
2856                                                    open_markdown_link(text, workspace.clone(), window, cx);
2857                                                }}))
2858                                            ),
2859                                        ),
2860                                )
2861                                .child(
2862                                    h_flex()
2863                                        .gap_1()
2864                                        .child(
2865                                            div().visible_on_hover("disclosure-header").child(
2866                                                Disclosure::new("tool-use-disclosure", is_open)
2867                                                    .opened_icon(IconName::ChevronUp)
2868                                                    .closed_icon(IconName::ChevronDown)
2869                                                    .on_click(cx.listener({
2870                                                        let tool_use_id = tool_use.id.clone();
2871                                                        move |this, _event, _window, _cx| {
2872                                                            let is_open = this
2873                                                                .expanded_tool_uses
2874                                                                .entry(tool_use_id.clone())
2875                                                                .or_insert(false);
2876
2877                                                            *is_open = !*is_open;
2878                                                        }
2879                                                    })),
2880                                            ),
2881                                        )
2882                                        .child(status_icons),
2883                                )
2884                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2885                        )
2886                        .map(|parent| {
2887                            if !is_open {
2888                                return parent;
2889                            }
2890
2891                            parent.child(
2892                                v_flex()
2893                                    .mt_1()
2894                                    .border_1()
2895                                    .border_color(self.tool_card_border_color(cx))
2896                                    .bg(cx.theme().colors().editor_background)
2897                                    .rounded_lg()
2898                                    .child(results_content),
2899                            )
2900                        }),
2901                )
2902            } else {
2903                v_flex()
2904                    .mb_2()
2905                    .rounded_lg()
2906                    .border_1()
2907                    .border_color(self.tool_card_border_color(cx))
2908                    .overflow_hidden()
2909                    .child(
2910                        h_flex()
2911                            .group("disclosure-header")
2912                            .relative()
2913                            .justify_between()
2914                            .py_1()
2915                            .map(|element| {
2916                                if is_status_finished {
2917                                    element.pl_2().pr_0p5()
2918                                } else {
2919                                    element.px_2()
2920                                }
2921                            })
2922                            .bg(self.tool_card_header_bg(cx))
2923                            .map(|element| {
2924                                if is_open {
2925                                    element.border_b_1().rounded_t_md()
2926                                } else if needs_confirmation {
2927                                    element.rounded_t_md()
2928                                } else {
2929                                    element.rounded_md()
2930                                }
2931                            })
2932                            .border_color(self.tool_card_border_color(cx))
2933                            .child(
2934                                h_flex()
2935                                    .id("tool-label-container")
2936                                    .gap_1p5()
2937                                    .max_w_full()
2938                                    .overflow_x_scroll()
2939                                    .child(
2940                                        Icon::new(tool_use.icon)
2941                                            .size(IconSize::XSmall)
2942                                            .color(Color::Muted),
2943                                    )
2944                                    .child(
2945                                        h_flex().pr_8().text_ui_sm(cx).children(
2946                                            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| {
2947                                                open_markdown_link(text, workspace.clone(), window, cx);
2948                                            }}))
2949                                        ),
2950                                    ),
2951                            )
2952                            .child(
2953                                h_flex()
2954                                    .gap_1()
2955                                    .child(
2956                                        div().visible_on_hover("disclosure-header").child(
2957                                            Disclosure::new("tool-use-disclosure", is_open)
2958                                                .opened_icon(IconName::ChevronUp)
2959                                                .closed_icon(IconName::ChevronDown)
2960                                                .on_click(cx.listener({
2961                                                    let tool_use_id = tool_use.id.clone();
2962                                                    move |this, _event, _window, _cx| {
2963                                                        let is_open = this
2964                                                            .expanded_tool_uses
2965                                                            .entry(tool_use_id.clone())
2966                                                            .or_insert(false);
2967
2968                                                        *is_open = !*is_open;
2969                                                    }
2970                                                })),
2971                                        ),
2972                                    )
2973                                    .child(status_icons),
2974                            )
2975                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
2976                    )
2977                    .map(|parent| {
2978                        if !is_open {
2979                            return parent;
2980                        }
2981
2982                        parent.child(
2983                            v_flex()
2984                                .bg(cx.theme().colors().editor_background)
2985                                .map(|element| {
2986                                    if  needs_confirmation {
2987                                        element.rounded_none()
2988                                    } else {
2989                                        element.rounded_b_lg()
2990                                    }
2991                                })
2992                                .child(results_content),
2993                        )
2994                    })
2995                    .when(needs_confirmation, |this| {
2996                        this.child(
2997                            h_flex()
2998                                .py_1()
2999                                .pl_2()
3000                                .pr_1()
3001                                .gap_1()
3002                                .justify_between()
3003                                .bg(cx.theme().colors().editor_background)
3004                                .border_t_1()
3005                                .border_color(self.tool_card_border_color(cx))
3006                                .rounded_b_lg()
3007                                .child(
3008                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3009                                )
3010                                .child(
3011                                    h_flex()
3012                                        .gap_0p5()
3013                                        .child({
3014                                            let tool_id = tool_use.id.clone();
3015                                            Button::new(
3016                                                "always-allow-tool-action",
3017                                                "Always Allow",
3018                                            )
3019                                            .label_size(LabelSize::Small)
3020                                            .icon(IconName::CheckDouble)
3021                                            .icon_position(IconPosition::Start)
3022                                            .icon_size(IconSize::Small)
3023                                            .icon_color(Color::Success)
3024                                            .tooltip(move |window, cx|  {
3025                                                Tooltip::with_meta(
3026                                                    "Never ask for permission",
3027                                                    None,
3028                                                    "Restore the original behavior in your Agent Panel settings",
3029                                                    window,
3030                                                    cx,
3031                                                )
3032                                            })
3033                                            .on_click(cx.listener(
3034                                                move |this, event, window, cx| {
3035                                                    if let Some(fs) = fs.clone() {
3036                                                        update_settings_file::<AssistantSettings>(
3037                                                            fs.clone(),
3038                                                            cx,
3039                                                            |settings, _| {
3040                                                                settings.set_always_allow_tool_actions(true);
3041                                                            },
3042                                                        );
3043                                                    }
3044                                                    this.handle_allow_tool(
3045                                                        tool_id.clone(),
3046                                                        event,
3047                                                        window,
3048                                                        cx,
3049                                                    )
3050                                                },
3051                                            ))
3052                                        })
3053                                        .child(ui::Divider::vertical())
3054                                        .child({
3055                                            let tool_id = tool_use.id.clone();
3056                                            Button::new("allow-tool-action", "Allow")
3057                                                .label_size(LabelSize::Small)
3058                                                .icon(IconName::Check)
3059                                                .icon_position(IconPosition::Start)
3060                                                .icon_size(IconSize::Small)
3061                                                .icon_color(Color::Success)
3062                                                .on_click(cx.listener(
3063                                                    move |this, event, window, cx| {
3064                                                        this.handle_allow_tool(
3065                                                            tool_id.clone(),
3066                                                            event,
3067                                                            window,
3068                                                            cx,
3069                                                        )
3070                                                    },
3071                                                ))
3072                                        })
3073                                        .child({
3074                                            let tool_id = tool_use.id.clone();
3075                                            let tool_name: Arc<str> = tool_use.name.into();
3076                                            Button::new("deny-tool", "Deny")
3077                                                .label_size(LabelSize::Small)
3078                                                .icon(IconName::Close)
3079                                                .icon_position(IconPosition::Start)
3080                                                .icon_size(IconSize::Small)
3081                                                .icon_color(Color::Error)
3082                                                .on_click(cx.listener(
3083                                                    move |this, event, window, cx| {
3084                                                        this.handle_deny_tool(
3085                                                            tool_id.clone(),
3086                                                            tool_name.clone(),
3087                                                            event,
3088                                                            window,
3089                                                            cx,
3090                                                        )
3091                                                    },
3092                                                ))
3093                                        }),
3094                                ),
3095                        )
3096                    })
3097            }
3098        }).into_any_element()
3099    }
3100
3101    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3102        let project_context = self.thread.read(cx).project_context();
3103        let project_context = project_context.borrow();
3104        let Some(project_context) = project_context.as_ref() else {
3105            return div().into_any();
3106        };
3107
3108        let user_rules_text = if project_context.user_rules.is_empty() {
3109            None
3110        } else if project_context.user_rules.len() == 1 {
3111            let user_rules = &project_context.user_rules[0];
3112
3113            match user_rules.title.as_ref() {
3114                Some(title) => Some(format!("Using \"{title}\" user rule")),
3115                None => Some("Using user rule".into()),
3116            }
3117        } else {
3118            Some(format!(
3119                "Using {} user rules",
3120                project_context.user_rules.len()
3121            ))
3122        };
3123
3124        let first_user_rules_id = project_context
3125            .user_rules
3126            .first()
3127            .map(|user_rules| user_rules.uuid.0);
3128
3129        let rules_files = project_context
3130            .worktrees
3131            .iter()
3132            .filter_map(|worktree| worktree.rules_file.as_ref())
3133            .collect::<Vec<_>>();
3134
3135        let rules_file_text = match rules_files.as_slice() {
3136            &[] => None,
3137            &[rules_file] => Some(format!(
3138                "Using project {:?} file",
3139                rules_file.path_in_worktree
3140            )),
3141            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3142        };
3143
3144        if user_rules_text.is_none() && rules_file_text.is_none() {
3145            return div().into_any();
3146        }
3147
3148        v_flex()
3149            .pt_2()
3150            .px_2p5()
3151            .gap_1()
3152            .when_some(user_rules_text, |parent, user_rules_text| {
3153                parent.child(
3154                    h_flex()
3155                        .w_full()
3156                        .child(
3157                            Icon::new(RULES_ICON)
3158                                .size(IconSize::XSmall)
3159                                .color(Color::Disabled),
3160                        )
3161                        .child(
3162                            Label::new(user_rules_text)
3163                                .size(LabelSize::XSmall)
3164                                .color(Color::Muted)
3165                                .truncate()
3166                                .buffer_font(cx)
3167                                .ml_1p5()
3168                                .mr_0p5(),
3169                        )
3170                        .child(
3171                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3172                                .shape(ui::IconButtonShape::Square)
3173                                .icon_size(IconSize::XSmall)
3174                                .icon_color(Color::Ignored)
3175                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3176                                .tooltip(Tooltip::text("View User Rules"))
3177                                .on_click(move |_event, window, cx| {
3178                                    window.dispatch_action(
3179                                        Box::new(OpenRulesLibrary {
3180                                            prompt_to_select: first_user_rules_id,
3181                                        }),
3182                                        cx,
3183                                    )
3184                                }),
3185                        ),
3186                )
3187            })
3188            .when_some(rules_file_text, |parent, rules_file_text| {
3189                parent.child(
3190                    h_flex()
3191                        .w_full()
3192                        .child(
3193                            Icon::new(IconName::File)
3194                                .size(IconSize::XSmall)
3195                                .color(Color::Disabled),
3196                        )
3197                        .child(
3198                            Label::new(rules_file_text)
3199                                .size(LabelSize::XSmall)
3200                                .color(Color::Muted)
3201                                .buffer_font(cx)
3202                                .ml_1p5()
3203                                .mr_0p5(),
3204                        )
3205                        .child(
3206                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3207                                .shape(ui::IconButtonShape::Square)
3208                                .icon_size(IconSize::XSmall)
3209                                .icon_color(Color::Ignored)
3210                                .on_click(cx.listener(Self::handle_open_rules))
3211                                .tooltip(Tooltip::text("View Rules")),
3212                        ),
3213                )
3214            })
3215            .into_any()
3216    }
3217
3218    fn handle_allow_tool(
3219        &mut self,
3220        tool_use_id: LanguageModelToolUseId,
3221        _: &ClickEvent,
3222        window: &mut Window,
3223        cx: &mut Context<Self>,
3224    ) {
3225        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3226            .thread
3227            .read(cx)
3228            .pending_tool(&tool_use_id)
3229            .map(|tool_use| tool_use.status.clone())
3230        {
3231            self.thread.update(cx, |thread, cx| {
3232                thread.run_tool(
3233                    c.tool_use_id.clone(),
3234                    c.ui_text.clone(),
3235                    c.input.clone(),
3236                    &c.messages,
3237                    c.tool.clone(),
3238                    Some(window.window_handle()),
3239                    cx,
3240                );
3241            });
3242        }
3243    }
3244
3245    fn handle_deny_tool(
3246        &mut self,
3247        tool_use_id: LanguageModelToolUseId,
3248        tool_name: Arc<str>,
3249        _: &ClickEvent,
3250        window: &mut Window,
3251        cx: &mut Context<Self>,
3252    ) {
3253        let window_handle = window.window_handle();
3254        self.thread.update(cx, |thread, cx| {
3255            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3256        });
3257    }
3258
3259    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3260        let project_context = self.thread.read(cx).project_context();
3261        let project_context = project_context.borrow();
3262        let Some(project_context) = project_context.as_ref() else {
3263            return;
3264        };
3265
3266        let project_entry_ids = project_context
3267            .worktrees
3268            .iter()
3269            .flat_map(|worktree| worktree.rules_file.as_ref())
3270            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3271            .collect::<Vec<_>>();
3272
3273        self.workspace
3274            .update(cx, move |workspace, cx| {
3275                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3276                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3277                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3278                let project = workspace.project().read(cx);
3279                let project_paths = project_entry_ids
3280                    .into_iter()
3281                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3282                    .collect::<Vec<_>>();
3283                for project_path in project_paths {
3284                    workspace
3285                        .open_path(project_path, None, true, window, cx)
3286                        .detach_and_log_err(cx);
3287                }
3288            })
3289            .ok();
3290    }
3291
3292    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3293        for window in self.notifications.drain(..) {
3294            window
3295                .update(cx, |_, window, _| {
3296                    window.remove_window();
3297                })
3298                .ok();
3299
3300            self.notification_subscriptions.remove(&window);
3301        }
3302    }
3303
3304    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3305        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3306            return None;
3307        }
3308
3309        Some(
3310            div()
3311                .occlude()
3312                .id("active-thread-scrollbar")
3313                .on_mouse_move(cx.listener(|_, _, _, cx| {
3314                    cx.notify();
3315                    cx.stop_propagation()
3316                }))
3317                .on_hover(|_, _, cx| {
3318                    cx.stop_propagation();
3319                })
3320                .on_any_mouse_down(|_, _, cx| {
3321                    cx.stop_propagation();
3322                })
3323                .on_mouse_up(
3324                    MouseButton::Left,
3325                    cx.listener(|_, _, _, cx| {
3326                        cx.stop_propagation();
3327                    }),
3328                )
3329                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3330                    cx.notify();
3331                }))
3332                .h_full()
3333                .absolute()
3334                .right_1()
3335                .top_1()
3336                .bottom_0()
3337                .w(px(12.))
3338                .cursor_default()
3339                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3340        )
3341    }
3342
3343    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3344        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3345        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3346            cx.background_executor()
3347                .timer(SCROLLBAR_SHOW_INTERVAL)
3348                .await;
3349            thread
3350                .update(cx, |thread, cx| {
3351                    if !thread.scrollbar_state.is_dragging() {
3352                        thread.show_scrollbar = false;
3353                        cx.notify();
3354                    }
3355                })
3356                .log_err();
3357        }))
3358    }
3359}
3360
3361pub enum ActiveThreadEvent {
3362    EditingMessageTokenCountChanged,
3363}
3364
3365impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3366
3367impl Render for ActiveThread {
3368    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3369        v_flex()
3370            .size_full()
3371            .relative()
3372            .on_mouse_move(cx.listener(|this, _, _, cx| {
3373                this.show_scrollbar = true;
3374                this.hide_scrollbar_later(cx);
3375                cx.notify();
3376            }))
3377            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3378                this.show_scrollbar = true;
3379                this.hide_scrollbar_later(cx);
3380                cx.notify();
3381            }))
3382            .on_mouse_up(
3383                MouseButton::Left,
3384                cx.listener(|this, _, _, cx| {
3385                    this.hide_scrollbar_later(cx);
3386                }),
3387            )
3388            .child(list(self.list_state.clone()).flex_grow())
3389            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3390                this.child(scrollbar)
3391            })
3392    }
3393}
3394
3395pub(crate) fn open_context(
3396    context: &AgentContextHandle,
3397    workspace: Entity<Workspace>,
3398    window: &mut Window,
3399    cx: &mut App,
3400) {
3401    match context {
3402        AgentContextHandle::File(file_context) => {
3403            if let Some(project_path) = file_context.project_path(cx) {
3404                workspace.update(cx, |workspace, cx| {
3405                    workspace
3406                        .open_path(project_path, None, true, window, cx)
3407                        .detach_and_log_err(cx);
3408                });
3409            }
3410        }
3411
3412        AgentContextHandle::Directory(directory_context) => {
3413            let entry_id = directory_context.entry_id;
3414            workspace.update(cx, |workspace, cx| {
3415                workspace.project().update(cx, |_project, cx| {
3416                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3417                })
3418            })
3419        }
3420
3421        AgentContextHandle::Symbol(symbol_context) => {
3422            let buffer = symbol_context.buffer.read(cx);
3423            if let Some(project_path) = buffer.project_path(cx) {
3424                let snapshot = buffer.snapshot();
3425                let target_position = symbol_context.range.start.to_point(&snapshot);
3426                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3427                    .detach();
3428            }
3429        }
3430
3431        AgentContextHandle::Selection(selection_context) => {
3432            let buffer = selection_context.buffer.read(cx);
3433            if let Some(project_path) = buffer.project_path(cx) {
3434                let snapshot = buffer.snapshot();
3435                let target_position = selection_context.range.start.to_point(&snapshot);
3436
3437                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3438                    .detach();
3439            }
3440        }
3441
3442        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3443            cx.open_url(&fetched_url_context.url);
3444        }
3445
3446        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3447            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3448                panel.update(cx, |panel, cx| {
3449                    let thread_id = thread_context.thread.read(cx).id().clone();
3450                    panel
3451                        .open_thread_by_id(&thread_id, window, cx)
3452                        .detach_and_log_err(cx)
3453                });
3454            }
3455        }),
3456
3457        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3458            Box::new(OpenRulesLibrary {
3459                prompt_to_select: Some(rules_context.prompt_id.0),
3460            }),
3461            cx,
3462        ),
3463
3464        AgentContextHandle::Image(_) => {}
3465    }
3466}
3467
3468fn open_editor_at_position(
3469    project_path: project::ProjectPath,
3470    target_position: Point,
3471    workspace: &Entity<Workspace>,
3472    window: &mut Window,
3473    cx: &mut App,
3474) -> Task<()> {
3475    let open_task = workspace.update(cx, |workspace, cx| {
3476        workspace.open_path(project_path, None, true, window, cx)
3477    });
3478    window.spawn(cx, async move |cx| {
3479        if let Some(active_editor) = open_task
3480            .await
3481            .log_err()
3482            .and_then(|item| item.downcast::<Editor>())
3483        {
3484            active_editor
3485                .downgrade()
3486                .update_in(cx, |editor, window, cx| {
3487                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3488                })
3489                .log_err();
3490        }
3491    })
3492}