active_thread.rs

   1use crate::AgentPanel;
   2use crate::context::{AgentContextHandle, RULES_ICON};
   3use crate::context_picker::{ContextPicker, MentionLink};
   4use crate::context_store::ContextStore;
   5use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   6use crate::message_editor::{extract_message_creases, insert_message_creases};
   7use crate::thread::{
   8    LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, Thread, ThreadError,
   9    ThreadEvent, ThreadFeedback, ThreadSummary,
  10};
  11use crate::thread_store::{RulesLoadingError, TextThreadStore, ThreadStore};
  12use crate::tool_use::{PendingToolUseStatus, ToolUse};
  13use crate::ui::{
  14    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  15};
  16use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  17use anyhow::Context as _;
  18use assistant_tool::ToolUseStatus;
  19use audio::{Audio, Sound};
  20use collections::{HashMap, HashSet};
  21use editor::actions::{MoveUp, Paste};
  22use editor::scroll::Autoscroll;
  23use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  24use gpui::{
  25    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  26    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  27    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  28    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  29    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  30    pulsating_between,
  31};
  32use language::{Buffer, Language, LanguageRegistry};
  33use language_model::{
  34    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  35};
  36use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  37use markdown::{
  38    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  39};
  40use project::{ProjectEntryId, ProjectItem as _};
  41use rope::Point;
  42use settings::{Settings as _, SettingsStore, update_settings_file};
  43use std::ffi::OsStr;
  44use std::path::Path;
  45use std::rc::Rc;
  46use std::sync::Arc;
  47use std::time::Duration;
  48use text::ToPoint;
  49use theme::ThemeSettings;
  50use ui::{
  51    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  52    Tooltip, prelude::*,
  53};
  54use util::ResultExt as _;
  55use util::markdown::MarkdownCodeBlock;
  56use workspace::{CollaboratorId, Workspace};
  57use zed_actions::assistant::OpenRulesLibrary;
  58use zed_llm_client::CompletionIntent;
  59
  60pub struct ActiveThread {
  61    context_store: Entity<ContextStore>,
  62    language_registry: Arc<LanguageRegistry>,
  63    thread_store: Entity<ThreadStore>,
  64    text_thread_store: Entity<TextThreadStore>,
  65    thread: Entity<Thread>,
  66    workspace: WeakEntity<Workspace>,
  67    save_thread_task: Option<Task<()>>,
  68    messages: Vec<MessageId>,
  69    list_state: ListState,
  70    scrollbar_state: ScrollbarState,
  71    show_scrollbar: bool,
  72    hide_scrollbar_task: Option<Task<()>>,
  73    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  74    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  75    editing_message: Option<(MessageId, EditingMessageState)>,
  76    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  77    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  78    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  79    last_error: Option<ThreadError>,
  80    notifications: Vec<WindowHandle<AgentNotification>>,
  81    copied_code_block_ids: HashSet<(MessageId, usize)>,
  82    _subscriptions: Vec<Subscription>,
  83    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  84    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  85    _load_edited_message_context_task: Option<Task<()>>,
  86}
  87
  88struct RenderedMessage {
  89    language_registry: Arc<LanguageRegistry>,
  90    segments: Vec<RenderedMessageSegment>,
  91}
  92
  93#[derive(Clone)]
  94struct RenderedToolUse {
  95    label: Entity<Markdown>,
  96    input: Entity<Markdown>,
  97    output: Entity<Markdown>,
  98}
  99
 100impl RenderedMessage {
 101    fn from_segments(
 102        segments: &[MessageSegment],
 103        language_registry: Arc<LanguageRegistry>,
 104        cx: &mut App,
 105    ) -> Self {
 106        let mut this = Self {
 107            language_registry,
 108            segments: Vec::with_capacity(segments.len()),
 109        };
 110        for segment in segments {
 111            this.push_segment(segment, cx);
 112        }
 113        this
 114    }
 115
 116    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 117        if let Some(RenderedMessageSegment::Thinking {
 118            content,
 119            scroll_handle,
 120        }) = self.segments.last_mut()
 121        {
 122            content.update(cx, |markdown, cx| {
 123                markdown.append(text, cx);
 124            });
 125            scroll_handle.scroll_to_bottom();
 126        } else {
 127            self.segments.push(RenderedMessageSegment::Thinking {
 128                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 129                scroll_handle: ScrollHandle::default(),
 130            });
 131        }
 132    }
 133
 134    fn append_text(&mut self, text: &String, cx: &mut App) {
 135        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 136            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 137        } else {
 138            self.segments
 139                .push(RenderedMessageSegment::Text(parse_markdown(
 140                    SharedString::from(text),
 141                    self.language_registry.clone(),
 142                    cx,
 143                )));
 144        }
 145    }
 146
 147    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 148        match segment {
 149            MessageSegment::Thinking { text, .. } => {
 150                self.segments.push(RenderedMessageSegment::Thinking {
 151                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 152                    scroll_handle: ScrollHandle::default(),
 153                })
 154            }
 155            MessageSegment::Text(text) => {
 156                self.segments
 157                    .push(RenderedMessageSegment::Text(parse_markdown(
 158                        text.into(),
 159                        self.language_registry.clone(),
 160                        cx,
 161                    )))
 162            }
 163            MessageSegment::RedactedThinking(_) => {}
 164        };
 165    }
 166}
 167
 168enum RenderedMessageSegment {
 169    Thinking {
 170        content: Entity<Markdown>,
 171        scroll_handle: ScrollHandle,
 172    },
 173    Text(Entity<Markdown>),
 174}
 175
 176fn parse_markdown(
 177    text: SharedString,
 178    language_registry: Arc<LanguageRegistry>,
 179    cx: &mut App,
 180) -> Entity<Markdown> {
 181    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 182}
 183
 184pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 185    let theme_settings = ThemeSettings::get_global(cx);
 186    let colors = cx.theme().colors();
 187    let ui_font_size = TextSize::Default.rems(cx);
 188    let buffer_font_size = TextSize::Small.rems(cx);
 189    let mut text_style = window.text_style();
 190    let line_height = buffer_font_size * 1.75;
 191
 192    text_style.refine(&TextStyleRefinement {
 193        font_family: Some(theme_settings.ui_font.family.clone()),
 194        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 195        font_features: Some(theme_settings.ui_font.features.clone()),
 196        font_size: Some(ui_font_size.into()),
 197        line_height: Some(line_height.into()),
 198        color: Some(cx.theme().colors().text),
 199        ..Default::default()
 200    });
 201
 202    MarkdownStyle {
 203        base_text_style: text_style.clone(),
 204        syntax: cx.theme().syntax().clone(),
 205        selection_background_color: cx.theme().players().local().selection,
 206        code_block_overflow_x_scroll: true,
 207        table_overflow_x_scroll: true,
 208        heading_level_styles: Some(HeadingLevelStyles {
 209            h1: Some(TextStyleRefinement {
 210                font_size: Some(rems(1.15).into()),
 211                ..Default::default()
 212            }),
 213            h2: Some(TextStyleRefinement {
 214                font_size: Some(rems(1.1).into()),
 215                ..Default::default()
 216            }),
 217            h3: Some(TextStyleRefinement {
 218                font_size: Some(rems(1.05).into()),
 219                ..Default::default()
 220            }),
 221            h4: Some(TextStyleRefinement {
 222                font_size: Some(rems(1.).into()),
 223                ..Default::default()
 224            }),
 225            h5: Some(TextStyleRefinement {
 226                font_size: Some(rems(0.95).into()),
 227                ..Default::default()
 228            }),
 229            h6: Some(TextStyleRefinement {
 230                font_size: Some(rems(0.875).into()),
 231                ..Default::default()
 232            }),
 233        }),
 234        code_block: StyleRefinement {
 235            padding: EdgesRefinement {
 236                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 239                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 240            },
 241            background: Some(colors.editor_background.into()),
 242            text: Some(TextStyleRefinement {
 243                font_family: Some(theme_settings.buffer_font.family.clone()),
 244                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 245                font_features: Some(theme_settings.buffer_font.features.clone()),
 246                font_size: Some(buffer_font_size.into()),
 247                ..Default::default()
 248            }),
 249            ..Default::default()
 250        },
 251        inline_code: TextStyleRefinement {
 252            font_family: Some(theme_settings.buffer_font.family.clone()),
 253            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 254            font_features: Some(theme_settings.buffer_font.features.clone()),
 255            font_size: Some(buffer_font_size.into()),
 256            background_color: Some(colors.editor_foreground.opacity(0.08)),
 257            ..Default::default()
 258        },
 259        link: TextStyleRefinement {
 260            background_color: Some(colors.editor_foreground.opacity(0.025)),
 261            underline: Some(UnderlineStyle {
 262                color: Some(colors.text_accent.opacity(0.5)),
 263                thickness: px(1.),
 264                ..Default::default()
 265            }),
 266            ..Default::default()
 267        },
 268        link_callback: Some(Rc::new(move |url, cx| {
 269            if MentionLink::is_valid(url) {
 270                let colors = cx.theme().colors();
 271                Some(TextStyleRefinement {
 272                    background_color: Some(colors.element_background),
 273                    ..Default::default()
 274                })
 275            } else {
 276                None
 277            }
 278        })),
 279        ..Default::default()
 280    }
 281}
 282
 283fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 284    let theme_settings = ThemeSettings::get_global(cx);
 285    let colors = cx.theme().colors();
 286    let ui_font_size = TextSize::Default.rems(cx);
 287    let buffer_font_size = TextSize::Small.rems(cx);
 288    let mut text_style = window.text_style();
 289
 290    text_style.refine(&TextStyleRefinement {
 291        font_family: Some(theme_settings.ui_font.family.clone()),
 292        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 293        font_features: Some(theme_settings.ui_font.features.clone()),
 294        font_size: Some(ui_font_size.into()),
 295        color: Some(cx.theme().colors().text),
 296        ..Default::default()
 297    });
 298
 299    MarkdownStyle {
 300        base_text_style: text_style,
 301        syntax: cx.theme().syntax().clone(),
 302        selection_background_color: cx.theme().players().local().selection,
 303        code_block_overflow_x_scroll: true,
 304        code_block: StyleRefinement {
 305            margin: EdgesRefinement::default(),
 306            padding: EdgesRefinement::default(),
 307            background: Some(colors.editor_background.into()),
 308            border_color: None,
 309            border_widths: EdgesRefinement::default(),
 310            text: Some(TextStyleRefinement {
 311                font_family: Some(theme_settings.buffer_font.family.clone()),
 312                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 313                font_features: Some(theme_settings.buffer_font.features.clone()),
 314                font_size: Some(buffer_font_size.into()),
 315                ..Default::default()
 316            }),
 317            ..Default::default()
 318        },
 319        inline_code: TextStyleRefinement {
 320            font_family: Some(theme_settings.buffer_font.family.clone()),
 321            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 322            font_features: Some(theme_settings.buffer_font.features.clone()),
 323            font_size: Some(TextSize::XSmall.rems(cx).into()),
 324            ..Default::default()
 325        },
 326        heading: StyleRefinement {
 327            text: Some(TextStyleRefinement {
 328                font_size: Some(ui_font_size.into()),
 329                ..Default::default()
 330            }),
 331            ..Default::default()
 332        },
 333        ..Default::default()
 334    }
 335}
 336
 337const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
 338
 339fn render_markdown_code_block(
 340    message_id: MessageId,
 341    ix: usize,
 342    kind: &CodeBlockKind,
 343    parsed_markdown: &ParsedMarkdown,
 344    metadata: CodeBlockMetadata,
 345    active_thread: Entity<ActiveThread>,
 346    workspace: WeakEntity<Workspace>,
 347    _window: &Window,
 348    cx: &App,
 349) -> Div {
 350    let label_size = rems(0.8125);
 351
 352    let label = match kind {
 353        CodeBlockKind::Indented => None,
 354        CodeBlockKind::Fenced => Some(
 355            h_flex()
 356                .px_1()
 357                .gap_1()
 358                .child(
 359                    Icon::new(IconName::Code)
 360                        .color(Color::Muted)
 361                        .size(IconSize::XSmall),
 362                )
 363                .child(div().text_size(label_size).child("Plain Text"))
 364                .into_any_element(),
 365        ),
 366        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 367            parsed_markdown.languages_by_name.get(raw_language_name),
 368            raw_language_name.clone(),
 369            cx,
 370        )),
 371        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 372            // We tell the model to use /dev/null for the path instead of using ```language
 373            // because otherwise it consistently fails to use code citations.
 374            if path_range.path.starts_with("/dev/null") {
 375                let ext = path_range
 376                    .path
 377                    .extension()
 378                    .and_then(OsStr::to_str)
 379                    .map(|str| SharedString::new(str.to_string()))
 380                    .unwrap_or_default();
 381
 382                render_code_language(
 383                    parsed_markdown
 384                        .languages_by_path
 385                        .get(&path_range.path)
 386                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 387                    ext,
 388                    cx,
 389                )
 390            } else {
 391                let content = if let Some(parent) = path_range.path.parent() {
 392                    let file_name = file_name.to_string_lossy().to_string();
 393                    let path = parent.to_string_lossy().to_string();
 394                    let path_and_file = format!("{}/{}", path, file_name);
 395
 396                    h_flex()
 397                        .id(("code-block-header-label", ix))
 398                        .ml_1()
 399                        .gap_1()
 400                        .child(div().text_size(label_size).child(file_name))
 401                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 402                        .tooltip(move |window, cx| {
 403                            Tooltip::with_meta(
 404                                "Jump to File",
 405                                None,
 406                                path_and_file.clone(),
 407                                window,
 408                                cx,
 409                            )
 410                        })
 411                        .into_any_element()
 412                } else {
 413                    div()
 414                        .ml_1()
 415                        .text_size(label_size)
 416                        .child(path_range.path.to_string_lossy().to_string())
 417                        .into_any_element()
 418                };
 419
 420                h_flex()
 421                    .id(("code-block-header-button", ix))
 422                    .w_full()
 423                    .max_w_full()
 424                    .px_1()
 425                    .gap_0p5()
 426                    .cursor_pointer()
 427                    .rounded_sm()
 428                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 429                    .child(
 430                        h_flex()
 431                            .gap_0p5()
 432                            .children(
 433                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 434                                    .map(Icon::from_path)
 435                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 436                            )
 437                            .child(content)
 438                            .child(
 439                                Icon::new(IconName::ArrowUpRight)
 440                                    .size(IconSize::XSmall)
 441                                    .color(Color::Ignored),
 442                            ),
 443                    )
 444                    .on_click({
 445                        let path_range = path_range.clone();
 446                        move |_, window, cx| {
 447                            workspace
 448                                .update(cx, |workspace, cx| {
 449                                    open_path(&path_range, window, workspace, cx)
 450                                })
 451                                .ok();
 452                        }
 453                    })
 454                    .into_any_element()
 455            }
 456        }),
 457    };
 458
 459    let codeblock_was_copied = active_thread
 460        .read(cx)
 461        .copied_code_block_ids
 462        .contains(&(message_id, ix));
 463
 464    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 465
 466    let codeblock_header_bg = cx
 467        .theme()
 468        .colors()
 469        .element_background
 470        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 471
 472    let control_buttons = h_flex()
 473        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 474        .absolute()
 475        .top_0()
 476        .right_0()
 477        .h_full()
 478        .bg(codeblock_header_bg)
 479        .rounded_tr_md()
 480        .px_1()
 481        .gap_1()
 482        .child(
 483            IconButton::new(
 484                ("copy-markdown-code", ix),
 485                if codeblock_was_copied {
 486                    IconName::Check
 487                } else {
 488                    IconName::Copy
 489                },
 490            )
 491            .icon_color(Color::Muted)
 492            .shape(ui::IconButtonShape::Square)
 493            .tooltip(Tooltip::text("Copy Code"))
 494            .on_click({
 495                let active_thread = active_thread.clone();
 496                let parsed_markdown = parsed_markdown.clone();
 497                let code_block_range = metadata.content_range.clone();
 498                move |_event, _window, cx| {
 499                    active_thread.update(cx, |this, cx| {
 500                        this.copied_code_block_ids.insert((message_id, ix));
 501
 502                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 503                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 504
 505                        cx.spawn(async move |this, cx| {
 506                            cx.background_executor().timer(Duration::from_secs(2)).await;
 507
 508                            cx.update(|cx| {
 509                                this.update(cx, |this, cx| {
 510                                    this.copied_code_block_ids.remove(&(message_id, ix));
 511                                    cx.notify();
 512                                })
 513                            })
 514                            .ok();
 515                        })
 516                        .detach();
 517                    });
 518                }
 519            }),
 520        )
 521        .child(
 522            IconButton::new(
 523                ("expand-collapse-code", ix),
 524                if is_expanded {
 525                    IconName::ChevronUp
 526                } else {
 527                    IconName::ChevronDown
 528                },
 529            )
 530            .icon_color(Color::Muted)
 531            .shape(ui::IconButtonShape::Square)
 532            .tooltip(Tooltip::text(if is_expanded {
 533                "Collapse Code"
 534            } else {
 535                "Expand Code"
 536            }))
 537            .on_click({
 538                let active_thread = active_thread.clone();
 539                move |_event, _window, cx| {
 540                    active_thread.update(cx, |this, cx| {
 541                        this.toggle_codeblock_expanded(message_id, ix);
 542                        cx.notify();
 543                    });
 544                }
 545            }),
 546        );
 547
 548    let codeblock_header = h_flex()
 549        .relative()
 550        .p_1()
 551        .gap_1()
 552        .justify_between()
 553        .bg(codeblock_header_bg)
 554        .map(|this| {
 555            if !is_expanded {
 556                this.rounded_md()
 557            } else {
 558                this.rounded_t_md()
 559                    .border_b_1()
 560                    .border_color(cx.theme().colors().border.opacity(0.6))
 561            }
 562        })
 563        .children(label)
 564        .child(control_buttons);
 565
 566    v_flex()
 567        .group(CODEBLOCK_CONTAINER_GROUP)
 568        .my_2()
 569        .overflow_hidden()
 570        .rounded_md()
 571        .border_1()
 572        .border_color(cx.theme().colors().border.opacity(0.6))
 573        .bg(cx.theme().colors().editor_background)
 574        .child(codeblock_header)
 575        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 576}
 577
 578fn open_path(
 579    path_range: &PathWithRange,
 580    window: &mut Window,
 581    workspace: &mut Workspace,
 582    cx: &mut Context<'_, Workspace>,
 583) {
 584    let Some(project_path) = workspace
 585        .project()
 586        .read(cx)
 587        .find_project_path(&path_range.path, cx)
 588    else {
 589        return; // TODO instead of just bailing out, open that path in a buffer.
 590    };
 591
 592    let Some(target) = path_range.range.as_ref().map(|range| {
 593        Point::new(
 594            // Line number is 1-based
 595            range.start.line.saturating_sub(1),
 596            range.start.col.unwrap_or(0),
 597        )
 598    }) else {
 599        return;
 600    };
 601    let open_task = workspace.open_path(project_path, None, true, window, cx);
 602    window
 603        .spawn(cx, async move |cx| {
 604            let item = open_task.await?;
 605            if let Some(active_editor) = item.downcast::<Editor>() {
 606                active_editor
 607                    .update_in(cx, |editor, window, cx| {
 608                        editor.go_to_singleton_buffer_point(target, window, cx);
 609                    })
 610                    .ok();
 611            }
 612            anyhow::Ok(())
 613        })
 614        .detach_and_log_err(cx);
 615}
 616
 617fn render_code_language(
 618    language: Option<&Arc<Language>>,
 619    name_fallback: SharedString,
 620    cx: &App,
 621) -> AnyElement {
 622    let icon_path = language.and_then(|language| {
 623        language
 624            .config()
 625            .matcher
 626            .path_suffixes
 627            .iter()
 628            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 629            .map(Icon::from_path)
 630    });
 631
 632    let language_label = language
 633        .map(|language| language.name().into())
 634        .unwrap_or(name_fallback);
 635
 636    let label_size = rems(0.8125);
 637
 638    h_flex()
 639        .px_1()
 640        .gap_1p5()
 641        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 642        .child(div().text_size(label_size).child(language_label))
 643        .into_any_element()
 644}
 645
 646fn open_markdown_link(
 647    text: SharedString,
 648    workspace: WeakEntity<Workspace>,
 649    window: &mut Window,
 650    cx: &mut App,
 651) {
 652    let Some(workspace) = workspace.upgrade() else {
 653        cx.open_url(&text);
 654        return;
 655    };
 656
 657    match MentionLink::try_parse(&text, &workspace, cx) {
 658        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 659            if entry.is_dir() {
 660                workspace.project().update(cx, |_, cx| {
 661                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 662                })
 663            } else {
 664                workspace
 665                    .open_path(path, None, true, window, cx)
 666                    .detach_and_log_err(cx);
 667            }
 668        }),
 669        Some(MentionLink::Symbol(path, symbol_name)) => {
 670            let open_task = workspace.update(cx, |workspace, cx| {
 671                workspace.open_path(path, None, true, window, cx)
 672            });
 673            window
 674                .spawn(cx, async move |cx| {
 675                    let active_editor = open_task
 676                        .await?
 677                        .downcast::<Editor>()
 678                        .context("Item is not an editor")?;
 679                    active_editor.update_in(cx, |editor, window, cx| {
 680                        let symbol_range = editor
 681                            .buffer()
 682                            .read(cx)
 683                            .snapshot(cx)
 684                            .outline(None)
 685                            .and_then(|outline| {
 686                                outline
 687                                    .find_most_similar(&symbol_name)
 688                                    .map(|(_, item)| item.range.clone())
 689                            })
 690                            .context("Could not find matching symbol")?;
 691
 692                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 693                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 694                        });
 695                        anyhow::Ok(())
 696                    })
 697                })
 698                .detach_and_log_err(cx);
 699        }
 700        Some(MentionLink::Selection(path, line_range)) => {
 701            let open_task = workspace.update(cx, |workspace, cx| {
 702                workspace.open_path(path, None, true, window, cx)
 703            });
 704            window
 705                .spawn(cx, async move |cx| {
 706                    let active_editor = open_task
 707                        .await?
 708                        .downcast::<Editor>()
 709                        .context("Item is not an editor")?;
 710                    active_editor.update_in(cx, |editor, window, cx| {
 711                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 712                            s.select_ranges([Point::new(line_range.start as u32, 0)
 713                                ..Point::new(line_range.start as u32, 0)])
 714                        });
 715                        anyhow::Ok(())
 716                    })
 717                })
 718                .detach_and_log_err(cx);
 719        }
 720        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 721            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 722                panel.update(cx, |panel, cx| {
 723                    panel
 724                        .open_thread_by_id(&thread_id, window, cx)
 725                        .detach_and_log_err(cx)
 726                });
 727            }
 728        }),
 729        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 730            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 731                panel.update(cx, |panel, cx| {
 732                    panel
 733                        .open_saved_prompt_editor(path, window, cx)
 734                        .detach_and_log_err(cx);
 735                });
 736            }
 737        }),
 738        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 739        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 740            Box::new(OpenRulesLibrary {
 741                prompt_to_select: Some(prompt_id.0),
 742            }),
 743            cx,
 744        ),
 745        None => cx.open_url(&text),
 746    }
 747}
 748
 749struct EditingMessageState {
 750    editor: Entity<Editor>,
 751    context_strip: Entity<ContextStrip>,
 752    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 753    last_estimated_token_count: Option<usize>,
 754    _subscriptions: [Subscription; 2],
 755    _update_token_count_task: Option<Task<()>>,
 756}
 757
 758impl ActiveThread {
 759    pub fn new(
 760        thread: Entity<Thread>,
 761        thread_store: Entity<ThreadStore>,
 762        text_thread_store: Entity<TextThreadStore>,
 763        context_store: Entity<ContextStore>,
 764        language_registry: Arc<LanguageRegistry>,
 765        workspace: WeakEntity<Workspace>,
 766        window: &mut Window,
 767        cx: &mut Context<Self>,
 768    ) -> Self {
 769        let subscriptions = vec![
 770            cx.observe(&thread, |_, _, cx| cx.notify()),
 771            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 772            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 773            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 774        ];
 775
 776        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 777            let this = cx.entity().downgrade();
 778            move |ix, window: &mut Window, cx: &mut App| {
 779                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 780                    .unwrap()
 781            }
 782        });
 783        let mut this = Self {
 784            language_registry,
 785            thread_store,
 786            text_thread_store,
 787            context_store,
 788            thread: thread.clone(),
 789            workspace,
 790            save_thread_task: None,
 791            messages: Vec::new(),
 792            rendered_messages_by_id: HashMap::default(),
 793            rendered_tool_uses: HashMap::default(),
 794            expanded_tool_uses: HashMap::default(),
 795            expanded_thinking_segments: HashMap::default(),
 796            expanded_code_blocks: HashMap::default(),
 797            list_state: list_state.clone(),
 798            scrollbar_state: ScrollbarState::new(list_state),
 799            show_scrollbar: false,
 800            hide_scrollbar_task: None,
 801            editing_message: None,
 802            last_error: None,
 803            copied_code_block_ids: HashSet::default(),
 804            notifications: Vec::new(),
 805            _subscriptions: subscriptions,
 806            notification_subscriptions: HashMap::default(),
 807            open_feedback_editors: HashMap::default(),
 808            _load_edited_message_context_task: None,
 809        };
 810
 811        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 812            this.push_message(&message.id, &message.segments, window, cx);
 813
 814            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 815                this.render_tool_use_markdown(
 816                    tool_use.id.clone(),
 817                    tool_use.ui_text.clone(),
 818                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 819                    tool_use.status.text(),
 820                    cx,
 821                );
 822            }
 823        }
 824
 825        this
 826    }
 827
 828    pub fn thread(&self) -> &Entity<Thread> {
 829        &self.thread
 830    }
 831
 832    pub fn is_empty(&self) -> bool {
 833        self.messages.is_empty()
 834    }
 835
 836    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 837        self.thread.read(cx).summary()
 838    }
 839
 840    pub fn regenerate_summary(&self, cx: &mut App) {
 841        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 842    }
 843
 844    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 845        self.last_error.take();
 846        self.thread.update(cx, |thread, cx| {
 847            thread.cancel_last_completion(Some(window.window_handle()), cx)
 848        })
 849    }
 850
 851    pub fn last_error(&self) -> Option<ThreadError> {
 852        self.last_error.clone()
 853    }
 854
 855    pub fn clear_last_error(&mut self) {
 856        self.last_error.take();
 857    }
 858
 859    /// Returns the editing message id and the estimated token count in the content
 860    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 861        self.editing_message
 862            .as_ref()
 863            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 864    }
 865
 866    pub fn context_store(&self) -> &Entity<ContextStore> {
 867        &self.context_store
 868    }
 869
 870    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 871        &self.thread_store
 872    }
 873
 874    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 875        &self.text_thread_store
 876    }
 877
 878    fn push_message(
 879        &mut self,
 880        id: &MessageId,
 881        segments: &[MessageSegment],
 882        _window: &mut Window,
 883        cx: &mut Context<Self>,
 884    ) {
 885        let old_len = self.messages.len();
 886        self.messages.push(*id);
 887        self.list_state.splice(old_len..old_len, 1);
 888
 889        let rendered_message =
 890            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 891        self.rendered_messages_by_id.insert(*id, rendered_message);
 892    }
 893
 894    fn edited_message(
 895        &mut self,
 896        id: &MessageId,
 897        segments: &[MessageSegment],
 898        _window: &mut Window,
 899        cx: &mut Context<Self>,
 900    ) {
 901        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 902            return;
 903        };
 904        self.list_state.splice(index..index + 1, 1);
 905        let rendered_message =
 906            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 907        self.rendered_messages_by_id.insert(*id, rendered_message);
 908    }
 909
 910    fn deleted_message(&mut self, id: &MessageId) {
 911        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 912            return;
 913        };
 914        self.messages.remove(index);
 915        self.list_state.splice(index..index + 1, 0);
 916        self.rendered_messages_by_id.remove(id);
 917    }
 918
 919    fn render_tool_use_markdown(
 920        &mut self,
 921        tool_use_id: LanguageModelToolUseId,
 922        tool_label: impl Into<SharedString>,
 923        tool_input: &str,
 924        tool_output: SharedString,
 925        cx: &mut Context<Self>,
 926    ) {
 927        let rendered = self
 928            .rendered_tool_uses
 929            .entry(tool_use_id.clone())
 930            .or_insert_with(|| RenderedToolUse {
 931                label: cx.new(|cx| {
 932                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 933                }),
 934                input: cx.new(|cx| {
 935                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 936                }),
 937                output: cx.new(|cx| {
 938                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 939                }),
 940            });
 941
 942        rendered.label.update(cx, |this, cx| {
 943            this.replace(tool_label, cx);
 944        });
 945        rendered.input.update(cx, |this, cx| {
 946            this.replace(
 947                MarkdownCodeBlock {
 948                    tag: "json",
 949                    text: tool_input,
 950                }
 951                .to_string(),
 952                cx,
 953            );
 954        });
 955        rendered.output.update(cx, |this, cx| {
 956            this.replace(tool_output, cx);
 957        });
 958    }
 959
 960    fn handle_thread_event(
 961        &mut self,
 962        _thread: &Entity<Thread>,
 963        event: &ThreadEvent,
 964        window: &mut Window,
 965        cx: &mut Context<Self>,
 966    ) {
 967        match event {
 968            ThreadEvent::CancelEditing => {
 969                if self.editing_message.is_some() {
 970                    self.cancel_editing_message(&menu::Cancel, window, cx);
 971                }
 972            }
 973            ThreadEvent::ShowError(error) => {
 974                self.last_error = Some(error.clone());
 975            }
 976            ThreadEvent::NewRequest => {
 977                cx.notify();
 978            }
 979            ThreadEvent::CompletionCanceled => {
 980                self.thread.update(cx, |thread, cx| {
 981                    thread.project().update(cx, |project, cx| {
 982                        project.set_agent_location(None, cx);
 983                    })
 984                });
 985                self.workspace
 986                    .update(cx, |workspace, cx| {
 987                        if workspace.is_being_followed(CollaboratorId::Agent) {
 988                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 989                        }
 990                    })
 991                    .ok();
 992                cx.notify();
 993            }
 994            ThreadEvent::StreamedCompletion
 995            | ThreadEvent::SummaryGenerated
 996            | ThreadEvent::SummaryChanged => {
 997                self.save_thread(cx);
 998            }
 999            ThreadEvent::Stopped(reason) => match reason {
1000                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
1001                    let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
1002                    self.play_notification_sound(cx);
1003                    self.show_notification(
1004                        if used_tools {
1005                            "Finished running tools"
1006                        } else {
1007                            "New message"
1008                        },
1009                        IconName::ZedAssistant,
1010                        window,
1011                        cx,
1012                    );
1013                }
1014                _ => {}
1015            },
1016            ThreadEvent::ToolConfirmationNeeded => {
1017                self.play_notification_sound(cx);
1018                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
1019            }
1020            ThreadEvent::StreamedAssistantText(message_id, text) => {
1021                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1022                    rendered_message.append_text(text, cx);
1023                }
1024            }
1025            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1026                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1027                    rendered_message.append_thinking(text, cx);
1028                }
1029            }
1030            ThreadEvent::MessageAdded(message_id) => {
1031                if let Some(message_segments) = self
1032                    .thread
1033                    .read(cx)
1034                    .message(*message_id)
1035                    .map(|message| message.segments.clone())
1036                {
1037                    self.push_message(message_id, &message_segments, window, cx);
1038                }
1039
1040                self.save_thread(cx);
1041                cx.notify();
1042            }
1043            ThreadEvent::MessageEdited(message_id) => {
1044                if let Some(message_segments) = self
1045                    .thread
1046                    .read(cx)
1047                    .message(*message_id)
1048                    .map(|message| message.segments.clone())
1049                {
1050                    self.edited_message(message_id, &message_segments, window, cx);
1051                }
1052
1053                self.scroll_to_bottom(cx);
1054                self.save_thread(cx);
1055                cx.notify();
1056            }
1057            ThreadEvent::MessageDeleted(message_id) => {
1058                self.deleted_message(message_id);
1059                self.save_thread(cx);
1060                cx.notify();
1061            }
1062            ThreadEvent::UsePendingTools { tool_uses } => {
1063                for tool_use in tool_uses {
1064                    self.render_tool_use_markdown(
1065                        tool_use.id.clone(),
1066                        tool_use.ui_text.clone(),
1067                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1068                        "".into(),
1069                        cx,
1070                    );
1071                }
1072            }
1073            ThreadEvent::StreamedToolUse {
1074                tool_use_id,
1075                ui_text,
1076                input,
1077            } => {
1078                self.render_tool_use_markdown(
1079                    tool_use_id.clone(),
1080                    ui_text.clone(),
1081                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1082                    "".into(),
1083                    cx,
1084                );
1085            }
1086            ThreadEvent::ToolFinished {
1087                pending_tool_use, ..
1088            } => {
1089                if let Some(tool_use) = pending_tool_use {
1090                    self.render_tool_use_markdown(
1091                        tool_use.id.clone(),
1092                        tool_use.ui_text.clone(),
1093                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1094                        self.thread
1095                            .read(cx)
1096                            .output_for_tool(&tool_use.id)
1097                            .map(|output| output.clone().into())
1098                            .unwrap_or("".into()),
1099                        cx,
1100                    );
1101                }
1102            }
1103            ThreadEvent::CheckpointChanged => cx.notify(),
1104            ThreadEvent::ReceivedTextChunk => {}
1105            ThreadEvent::InvalidToolInput {
1106                tool_use_id,
1107                ui_text,
1108                invalid_input_json,
1109            } => {
1110                self.render_tool_use_markdown(
1111                    tool_use_id.clone(),
1112                    ui_text,
1113                    invalid_input_json,
1114                    self.thread
1115                        .read(cx)
1116                        .output_for_tool(tool_use_id)
1117                        .map(|output| output.clone().into())
1118                        .unwrap_or("".into()),
1119                    cx,
1120                );
1121            }
1122            ThreadEvent::MissingToolUse {
1123                tool_use_id,
1124                ui_text,
1125            } => {
1126                self.render_tool_use_markdown(
1127                    tool_use_id.clone(),
1128                    ui_text,
1129                    "",
1130                    self.thread
1131                        .read(cx)
1132                        .output_for_tool(tool_use_id)
1133                        .map(|output| output.clone().into())
1134                        .unwrap_or("".into()),
1135                    cx,
1136                );
1137            }
1138        }
1139    }
1140
1141    fn handle_rules_loading_error(
1142        &mut self,
1143        _thread_store: Entity<ThreadStore>,
1144        error: &RulesLoadingError,
1145        cx: &mut Context<Self>,
1146    ) {
1147        self.last_error = Some(ThreadError::Message {
1148            header: "Error loading rules file".into(),
1149            message: error.message.clone(),
1150        });
1151        cx.notify();
1152    }
1153
1154    fn play_notification_sound(&self, cx: &mut App) {
1155        let settings = AgentSettings::get_global(cx);
1156        if settings.play_sound_when_agent_done {
1157            Audio::play_sound(Sound::AgentDone, cx);
1158        }
1159    }
1160
1161    fn show_notification(
1162        &mut self,
1163        caption: impl Into<SharedString>,
1164        icon: IconName,
1165        window: &mut Window,
1166        cx: &mut Context<ActiveThread>,
1167    ) {
1168        if window.is_window_active() || !self.notifications.is_empty() {
1169            return;
1170        }
1171
1172        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1173
1174        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1175            NotifyWhenAgentWaiting::PrimaryScreen => {
1176                if let Some(primary) = cx.primary_display() {
1177                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1178                }
1179            }
1180            NotifyWhenAgentWaiting::AllScreens => {
1181                let caption = caption.into();
1182                for screen in cx.displays() {
1183                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1184                }
1185            }
1186            NotifyWhenAgentWaiting::Never => {
1187                // Don't show anything
1188            }
1189        }
1190    }
1191
1192    fn pop_up(
1193        &mut self,
1194        icon: IconName,
1195        caption: SharedString,
1196        title: SharedString,
1197        window: &mut Window,
1198        screen: Rc<dyn PlatformDisplay>,
1199        cx: &mut Context<'_, ActiveThread>,
1200    ) {
1201        let options = AgentNotification::window_options(screen, cx);
1202
1203        let project_name = self.workspace.upgrade().and_then(|workspace| {
1204            workspace
1205                .read(cx)
1206                .project()
1207                .read(cx)
1208                .visible_worktrees(cx)
1209                .next()
1210                .map(|worktree| worktree.read(cx).root_name().to_string())
1211        });
1212
1213        if let Some(screen_window) = cx
1214            .open_window(options, |_, cx| {
1215                cx.new(|_| {
1216                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1217                })
1218            })
1219            .log_err()
1220        {
1221            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1222                self.notification_subscriptions
1223                    .entry(screen_window)
1224                    .or_insert_with(Vec::new)
1225                    .push(cx.subscribe_in(&pop_up, window, {
1226                        |this, _, event, window, cx| match event {
1227                            AgentNotificationEvent::Accepted => {
1228                                let handle = window.window_handle();
1229                                cx.activate(true);
1230
1231                                let workspace_handle = this.workspace.clone();
1232
1233                                // If there are multiple Zed windows, activate the correct one.
1234                                cx.defer(move |cx| {
1235                                    handle
1236                                        .update(cx, |_view, window, _cx| {
1237                                            window.activate_window();
1238
1239                                            if let Some(workspace) = workspace_handle.upgrade() {
1240                                                workspace.update(_cx, |workspace, cx| {
1241                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1242                                                });
1243                                            }
1244                                        })
1245                                        .log_err();
1246                                });
1247
1248                                this.dismiss_notifications(cx);
1249                            }
1250                            AgentNotificationEvent::Dismissed => {
1251                                this.dismiss_notifications(cx);
1252                            }
1253                        }
1254                    }));
1255
1256                self.notifications.push(screen_window);
1257
1258                // If the user manually refocuses the original window, dismiss the popup.
1259                self.notification_subscriptions
1260                    .entry(screen_window)
1261                    .or_insert_with(Vec::new)
1262                    .push({
1263                        let pop_up_weak = pop_up.downgrade();
1264
1265                        cx.observe_window_activation(window, move |_, window, cx| {
1266                            if window.is_window_active() {
1267                                if let Some(pop_up) = pop_up_weak.upgrade() {
1268                                    pop_up.update(cx, |_, cx| {
1269                                        cx.emit(AgentNotificationEvent::Dismissed);
1270                                    });
1271                                }
1272                            }
1273                        })
1274                    });
1275            }
1276        }
1277    }
1278
1279    /// Spawns a task to save the active thread.
1280    ///
1281    /// Only one task to save the thread will be in flight at a time.
1282    fn save_thread(&mut self, cx: &mut Context<Self>) {
1283        let thread = self.thread.clone();
1284        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1285            let task = this
1286                .update(cx, |this, cx| {
1287                    this.thread_store
1288                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1289                })
1290                .ok();
1291
1292            if let Some(task) = task {
1293                task.await.log_err();
1294            }
1295        }));
1296    }
1297
1298    fn start_editing_message(
1299        &mut self,
1300        message_id: MessageId,
1301        message_segments: &[MessageSegment],
1302        message_creases: &[MessageCrease],
1303        window: &mut Window,
1304        cx: &mut Context<Self>,
1305    ) {
1306        // User message should always consist of a single text segment,
1307        // therefore we can skip returning early if it's not a text segment.
1308        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1309            return;
1310        };
1311
1312        let editor = crate::message_editor::create_editor(
1313            self.workspace.clone(),
1314            self.context_store.downgrade(),
1315            self.thread_store.downgrade(),
1316            self.text_thread_store.downgrade(),
1317            window,
1318            cx,
1319        );
1320        editor.update(cx, |editor, cx| {
1321            editor.set_text(message_text.clone(), window, cx);
1322            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1323            editor.focus_handle(cx).focus(window);
1324            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1325        });
1326        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1327            EditorEvent::BufferEdited => {
1328                this.update_editing_message_token_count(true, cx);
1329            }
1330            _ => {}
1331        });
1332
1333        let context_picker_menu_handle = PopoverMenuHandle::default();
1334        let context_strip = cx.new(|cx| {
1335            ContextStrip::new(
1336                self.context_store.clone(),
1337                self.workspace.clone(),
1338                Some(self.thread_store.downgrade()),
1339                Some(self.text_thread_store.downgrade()),
1340                context_picker_menu_handle.clone(),
1341                SuggestContextKind::File,
1342                window,
1343                cx,
1344            )
1345        });
1346
1347        let context_strip_subscription =
1348            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1349
1350        self.editing_message = Some((
1351            message_id,
1352            EditingMessageState {
1353                editor: editor.clone(),
1354                context_strip,
1355                context_picker_menu_handle,
1356                last_estimated_token_count: None,
1357                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1358                _update_token_count_task: None,
1359            },
1360        ));
1361        self.update_editing_message_token_count(false, cx);
1362        cx.notify();
1363    }
1364
1365    fn handle_context_strip_event(
1366        &mut self,
1367        _context_strip: &Entity<ContextStrip>,
1368        event: &ContextStripEvent,
1369        window: &mut Window,
1370        cx: &mut Context<Self>,
1371    ) {
1372        if let Some((_, state)) = self.editing_message.as_ref() {
1373            match event {
1374                ContextStripEvent::PickerDismissed
1375                | ContextStripEvent::BlurredEmpty
1376                | ContextStripEvent::BlurredDown => {
1377                    let editor_focus_handle = state.editor.focus_handle(cx);
1378                    window.focus(&editor_focus_handle);
1379                }
1380                ContextStripEvent::BlurredUp => {}
1381            }
1382        }
1383    }
1384
1385    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1386        let Some((message_id, state)) = self.editing_message.as_mut() else {
1387            return;
1388        };
1389
1390        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1391        state._update_token_count_task.take();
1392
1393        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1394            state.last_estimated_token_count.take();
1395            return;
1396        };
1397
1398        let editor = state.editor.clone();
1399        let thread = self.thread.clone();
1400        let message_id = *message_id;
1401
1402        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1403            if debounce {
1404                cx.background_executor()
1405                    .timer(Duration::from_millis(200))
1406                    .await;
1407            }
1408
1409            let token_count = if let Some(task) = cx
1410                .update(|cx| {
1411                    let Some(message) = thread.read(cx).message(message_id) else {
1412                        log::error!("Message that was being edited no longer exists");
1413                        return None;
1414                    };
1415                    let message_text = editor.read(cx).text(cx);
1416
1417                    if message_text.is_empty() && message.loaded_context.is_empty() {
1418                        return None;
1419                    }
1420
1421                    let mut request_message = LanguageModelRequestMessage {
1422                        role: language_model::Role::User,
1423                        content: Vec::new(),
1424                        cache: false,
1425                    };
1426
1427                    message
1428                        .loaded_context
1429                        .add_to_request_message(&mut request_message);
1430
1431                    if !message_text.is_empty() {
1432                        request_message
1433                            .content
1434                            .push(MessageContent::Text(message_text));
1435                    }
1436
1437                    let request = language_model::LanguageModelRequest {
1438                        thread_id: None,
1439                        prompt_id: None,
1440                        intent: None,
1441                        mode: None,
1442                        messages: vec![request_message],
1443                        tools: vec![],
1444                        tool_choice: None,
1445                        stop: vec![],
1446                        temperature: AgentSettings::temperature_for_model(
1447                            &configured_model.model,
1448                            cx,
1449                        ),
1450                    };
1451
1452                    Some(configured_model.model.count_tokens(request, cx))
1453                })
1454                .ok()
1455                .flatten()
1456            {
1457                task.await.log_err()
1458            } else {
1459                Some(0)
1460            };
1461
1462            if let Some(token_count) = token_count {
1463                this.update(cx, |this, cx| {
1464                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1465                        return;
1466                    };
1467
1468                    state.last_estimated_token_count = Some(token_count);
1469                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1470                })
1471                .ok();
1472            };
1473        }));
1474    }
1475
1476    fn toggle_context_picker(
1477        &mut self,
1478        _: &crate::ToggleContextPicker,
1479        window: &mut Window,
1480        cx: &mut Context<Self>,
1481    ) {
1482        if let Some((_, state)) = self.editing_message.as_mut() {
1483            let handle = state.context_picker_menu_handle.clone();
1484            window.defer(cx, move |window, cx| {
1485                handle.toggle(window, cx);
1486            });
1487        }
1488    }
1489
1490    fn remove_all_context(
1491        &mut self,
1492        _: &crate::RemoveAllContext,
1493        _window: &mut Window,
1494        cx: &mut Context<Self>,
1495    ) {
1496        self.context_store.update(cx, |store, cx| store.clear(cx));
1497        cx.notify();
1498    }
1499
1500    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1501        if let Some((_, state)) = self.editing_message.as_mut() {
1502            if state.context_picker_menu_handle.is_deployed() {
1503                cx.propagate();
1504            } else {
1505                state.context_strip.focus_handle(cx).focus(window);
1506            }
1507        }
1508    }
1509
1510    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1511        let images = cx
1512            .read_from_clipboard()
1513            .map(|item| {
1514                item.into_entries()
1515                    .filter_map(|entry| {
1516                        if let ClipboardEntry::Image(image) = entry {
1517                            Some(image)
1518                        } else {
1519                            None
1520                        }
1521                    })
1522                    .collect::<Vec<_>>()
1523            })
1524            .unwrap_or_default();
1525
1526        if images.is_empty() {
1527            return;
1528        }
1529        cx.stop_propagation();
1530
1531        self.context_store.update(cx, |store, cx| {
1532            for image in images {
1533                store.add_image_instance(Arc::new(image), cx);
1534            }
1535        });
1536    }
1537
1538    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1539        self.editing_message.take();
1540        cx.notify();
1541    }
1542
1543    fn confirm_editing_message(
1544        &mut self,
1545        _: &menu::Confirm,
1546        window: &mut Window,
1547        cx: &mut Context<Self>,
1548    ) {
1549        let Some((message_id, state)) = self.editing_message.take() else {
1550            return;
1551        };
1552
1553        let Some(model) = self
1554            .thread
1555            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1556        else {
1557            return;
1558        };
1559
1560        if model.provider.must_accept_terms(cx) {
1561            cx.notify();
1562            return;
1563        }
1564
1565        let edited_text = state.editor.read(cx).text(cx);
1566
1567        let creases = state.editor.update(cx, extract_message_creases);
1568
1569        let new_context = self
1570            .context_store
1571            .read(cx)
1572            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1573
1574        let project = self.thread.read(cx).project().clone();
1575        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1576
1577        let git_store = project.read(cx).git_store().clone();
1578        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1579
1580        let load_context_task =
1581            crate::context::load_context(new_context, &project, &prompt_store, cx);
1582        self._load_edited_message_context_task =
1583            Some(cx.spawn_in(window, async move |this, cx| {
1584                let (context, checkpoint) =
1585                    futures::future::join(load_context_task, checkpoint).await;
1586                let _ = this
1587                    .update_in(cx, |this, window, cx| {
1588                        this.thread.update(cx, |thread, cx| {
1589                            thread.edit_message(
1590                                message_id,
1591                                Role::User,
1592                                vec![MessageSegment::Text(edited_text)],
1593                                creases,
1594                                Some(context.loaded_context),
1595                                checkpoint.ok(),
1596                                cx,
1597                            );
1598                            for message_id in this.messages_after(message_id) {
1599                                thread.delete_message(*message_id, cx);
1600                            }
1601                        });
1602
1603                        this.thread.update(cx, |thread, cx| {
1604                            thread.advance_prompt_id();
1605                            thread.send_to_model(
1606                                model.model,
1607                                CompletionIntent::UserPrompt,
1608                                Some(window.window_handle()),
1609                                cx,
1610                            );
1611                        });
1612                        this._load_edited_message_context_task = None;
1613                        cx.notify();
1614                    })
1615                    .log_err();
1616            }));
1617    }
1618
1619    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1620        self.messages
1621            .iter()
1622            .position(|id| *id == message_id)
1623            .map(|index| &self.messages[index + 1..])
1624            .unwrap_or(&[])
1625    }
1626
1627    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1628        self.cancel_editing_message(&menu::Cancel, window, cx);
1629    }
1630
1631    fn handle_regenerate_click(
1632        &mut self,
1633        _: &ClickEvent,
1634        window: &mut Window,
1635        cx: &mut Context<Self>,
1636    ) {
1637        self.confirm_editing_message(&menu::Confirm, window, cx);
1638    }
1639
1640    fn handle_feedback_click(
1641        &mut self,
1642        message_id: MessageId,
1643        feedback: ThreadFeedback,
1644        window: &mut Window,
1645        cx: &mut Context<Self>,
1646    ) {
1647        let report = self.thread.update(cx, |thread, cx| {
1648            thread.report_message_feedback(message_id, feedback, cx)
1649        });
1650
1651        cx.spawn(async move |this, cx| {
1652            report.await?;
1653            this.update(cx, |_this, cx| cx.notify())
1654        })
1655        .detach_and_log_err(cx);
1656
1657        match feedback {
1658            ThreadFeedback::Positive => {
1659                self.open_feedback_editors.remove(&message_id);
1660            }
1661            ThreadFeedback::Negative => {
1662                self.handle_show_feedback_comments(message_id, window, cx);
1663            }
1664        }
1665    }
1666
1667    fn handle_show_feedback_comments(
1668        &mut self,
1669        message_id: MessageId,
1670        window: &mut Window,
1671        cx: &mut Context<Self>,
1672    ) {
1673        let buffer = cx.new(|cx| {
1674            let empty_string = String::new();
1675            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1676        });
1677
1678        let editor = cx.new(|cx| {
1679            let mut editor = Editor::new(
1680                editor::EditorMode::AutoHeight { max_lines: 4 },
1681                buffer,
1682                None,
1683                window,
1684                cx,
1685            );
1686            editor.set_placeholder_text(
1687                "What went wrong? Share your feedback so we can improve.",
1688                cx,
1689            );
1690            editor
1691        });
1692
1693        editor.read(cx).focus_handle(cx).focus(window);
1694        self.open_feedback_editors.insert(message_id, editor);
1695        cx.notify();
1696    }
1697
1698    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1699        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1700            return;
1701        };
1702
1703        let report_task = self.thread.update(cx, |thread, cx| {
1704            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1705        });
1706
1707        let comments = editor.read(cx).text(cx);
1708        if !comments.is_empty() {
1709            let thread_id = self.thread.read(cx).id().clone();
1710            let comments_value = String::from(comments.as_str());
1711
1712            let message_content = self
1713                .thread
1714                .read(cx)
1715                .message(message_id)
1716                .map(|msg| msg.to_string())
1717                .unwrap_or_default();
1718
1719            telemetry::event!(
1720                "Assistant Thread Feedback Comments",
1721                thread_id,
1722                message_id = message_id.0,
1723                message_content,
1724                comments = comments_value
1725            );
1726
1727            self.open_feedback_editors.remove(&message_id);
1728
1729            cx.spawn(async move |this, cx| {
1730                report_task.await?;
1731                this.update(cx, |_this, cx| cx.notify())
1732            })
1733            .detach_and_log_err(cx);
1734        }
1735    }
1736
1737    fn render_edit_message_editor(
1738        &self,
1739        state: &EditingMessageState,
1740        _window: &mut Window,
1741        cx: &Context<Self>,
1742    ) -> impl IntoElement {
1743        let settings = ThemeSettings::get_global(cx);
1744        let font_size = TextSize::Small
1745            .rems(cx)
1746            .to_pixels(settings.agent_font_size(cx));
1747        let line_height = font_size * 1.75;
1748
1749        let colors = cx.theme().colors();
1750
1751        let text_style = TextStyle {
1752            color: colors.text,
1753            font_family: settings.buffer_font.family.clone(),
1754            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1755            font_features: settings.buffer_font.features.clone(),
1756            font_size: font_size.into(),
1757            line_height: line_height.into(),
1758            ..Default::default()
1759        };
1760
1761        v_flex()
1762            .key_context("EditMessageEditor")
1763            .on_action(cx.listener(Self::toggle_context_picker))
1764            .on_action(cx.listener(Self::remove_all_context))
1765            .on_action(cx.listener(Self::move_up))
1766            .on_action(cx.listener(Self::cancel_editing_message))
1767            .on_action(cx.listener(Self::confirm_editing_message))
1768            .capture_action(cx.listener(Self::paste))
1769            .min_h_6()
1770            .w_full()
1771            .flex_grow()
1772            .gap_2()
1773            .child(state.context_strip.clone())
1774            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1775                &state.editor,
1776                EditorStyle {
1777                    background: colors.editor_background,
1778                    local_player: cx.theme().players().local(),
1779                    text: text_style,
1780                    syntax: cx.theme().syntax().clone(),
1781                    ..Default::default()
1782                },
1783            )))
1784    }
1785
1786    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1787        let message_id = self.messages[ix];
1788        let Some(message) = self.thread.read(cx).message(message_id) else {
1789            return Empty.into_any();
1790        };
1791
1792        if message.is_hidden {
1793            return Empty.into_any();
1794        }
1795
1796        let message_creases = message.creases.clone();
1797
1798        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1799            return Empty.into_any();
1800        };
1801
1802        let workspace = self.workspace.clone();
1803        let thread = self.thread.read(cx);
1804
1805        // Get all the data we need from thread before we start using it in closures
1806        let checkpoint = thread.checkpoint_for_message(message_id);
1807        let added_context = thread
1808            .context_for_message(message_id)
1809            .map(|context| AddedContext::new_attached(context, cx))
1810            .collect::<Vec<_>>();
1811
1812        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1813        let has_tool_uses = !tool_uses.is_empty();
1814        let is_generating = thread.is_generating();
1815        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1816
1817        let is_first_message = ix == 0;
1818        let is_last_message = ix == self.messages.len() - 1;
1819
1820        let loading_dots = (is_generating_stale && is_last_message)
1821            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1822
1823        let editing_message_state = self
1824            .editing_message
1825            .as_ref()
1826            .filter(|(id, _)| *id == message_id)
1827            .map(|(_, state)| state);
1828
1829        let colors = cx.theme().colors();
1830        let editor_bg_color = colors.editor_background;
1831
1832        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1833            .icon_size(IconSize::XSmall)
1834            .icon_color(Color::Ignored)
1835            .tooltip(Tooltip::text("Open Thread as Markdown"))
1836            .on_click({
1837                let thread = self.thread.clone();
1838                let workspace = self.workspace.clone();
1839                move |_, window, cx| {
1840                    if let Some(workspace) = workspace.upgrade() {
1841                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1842                            .detach_and_log_err(cx);
1843                    }
1844                }
1845            });
1846
1847        // For all items that should be aligned with the LLM's response.
1848        const RESPONSE_PADDING_X: Pixels = px(19.);
1849
1850        let show_feedback = thread.is_turn_end(ix);
1851
1852        let feedback_container = h_flex()
1853            .group("feedback_container")
1854            .mt_1()
1855            .py_2()
1856            .px(RESPONSE_PADDING_X)
1857            .mr_1()
1858            .opacity(0.4)
1859            .hover(|style| style.opacity(1.))
1860            .gap_1p5()
1861            .flex_wrap()
1862            .justify_end();
1863        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1864            Some(feedback) => feedback_container
1865                .child(
1866                    div().visible_on_hover("feedback_container").child(
1867                        Label::new(match feedback {
1868                            ThreadFeedback::Positive => "Thanks for your feedback!",
1869                            ThreadFeedback::Negative => {
1870                                "We appreciate your feedback and will use it to improve."
1871                            }
1872                        })
1873                    .color(Color::Muted)
1874                    .size(LabelSize::XSmall)
1875                    .truncate())
1876                )
1877                .child(
1878                    h_flex()
1879                        .child(
1880                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1881                                .icon_size(IconSize::XSmall)
1882                                .icon_color(match feedback {
1883                                    ThreadFeedback::Positive => Color::Accent,
1884                                    ThreadFeedback::Negative => Color::Ignored,
1885                                })
1886                                .tooltip(Tooltip::text("Helpful Response"))
1887                                .on_click(cx.listener(move |this, _, window, cx| {
1888                                    this.handle_feedback_click(
1889                                        message_id,
1890                                        ThreadFeedback::Positive,
1891                                        window,
1892                                        cx,
1893                                    );
1894                                })),
1895                        )
1896                        .child(
1897                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1898                                .icon_size(IconSize::XSmall)
1899                                .icon_color(match feedback {
1900                                    ThreadFeedback::Positive => Color::Ignored,
1901                                    ThreadFeedback::Negative => Color::Accent,
1902                                })
1903                                .tooltip(Tooltip::text("Not Helpful"))
1904                                .on_click(cx.listener(move |this, _, window, cx| {
1905                                    this.handle_feedback_click(
1906                                        message_id,
1907                                        ThreadFeedback::Negative,
1908                                        window,
1909                                        cx,
1910                                    );
1911                                })),
1912                        )
1913                        .child(open_as_markdown),
1914                )
1915                .into_any_element(),
1916            None if AgentSettings::get_global(cx).enable_feedback =>
1917                feedback_container
1918                .child(
1919                    div().visible_on_hover("feedback_container").child(
1920                        Label::new(
1921                            "Rating the thread sends all of your current conversation to the Zed team.",
1922                        )
1923                        .color(Color::Muted)
1924                    .size(LabelSize::XSmall)
1925                    .truncate())
1926                )
1927                .child(
1928                    h_flex()
1929                        .child(
1930                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1931                                .icon_size(IconSize::XSmall)
1932                                .icon_color(Color::Ignored)
1933                                .tooltip(Tooltip::text("Helpful Response"))
1934                                .on_click(cx.listener(move |this, _, window, cx| {
1935                                    this.handle_feedback_click(
1936                                        message_id,
1937                                        ThreadFeedback::Positive,
1938                                        window,
1939                                        cx,
1940                                    );
1941                                })),
1942                        )
1943                        .child(
1944                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1945                                .icon_size(IconSize::XSmall)
1946                                .icon_color(Color::Ignored)
1947                                .tooltip(Tooltip::text("Not Helpful"))
1948                                .on_click(cx.listener(move |this, _, window, cx| {
1949                                    this.handle_feedback_click(
1950                                        message_id,
1951                                        ThreadFeedback::Negative,
1952                                        window,
1953                                        cx,
1954                                    );
1955                                })),
1956                        )
1957                        .child(open_as_markdown),
1958                )
1959                .into_any_element(),
1960            None => feedback_container
1961                .child(h_flex().child(open_as_markdown))
1962                .into_any_element(),
1963        };
1964
1965        let message_is_empty = message.should_display_content();
1966        let has_content = !message_is_empty || !added_context.is_empty();
1967
1968        let message_content = has_content.then(|| {
1969            if let Some(state) = editing_message_state.as_ref() {
1970                self.render_edit_message_editor(state, window, cx)
1971                    .into_any_element()
1972            } else {
1973                v_flex()
1974                    .w_full()
1975                    .gap_1()
1976                    .when(!added_context.is_empty(), |parent| {
1977                        parent.child(h_flex().flex_wrap().gap_1().children(
1978                            added_context.into_iter().map(|added_context| {
1979                                let context = added_context.handle.clone();
1980                                ContextPill::added(added_context, false, false, None).on_click(
1981                                    Rc::new(cx.listener({
1982                                        let workspace = workspace.clone();
1983                                        move |_, _, window, cx| {
1984                                            if let Some(workspace) = workspace.upgrade() {
1985                                                open_context(&context, workspace, window, cx);
1986                                                cx.notify();
1987                                            }
1988                                        }
1989                                    })),
1990                                )
1991                            }),
1992                        ))
1993                    })
1994                    .when(!message_is_empty, |parent| {
1995                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1996                            message_id,
1997                            rendered_message,
1998                            has_tool_uses,
1999                            workspace.clone(),
2000                            window,
2001                            cx,
2002                        )))
2003                    })
2004                    .into_any_element()
2005            }
2006        });
2007
2008        let styled_message = match message.role {
2009            Role::User => v_flex()
2010                .id(("message-container", ix))
2011                .pt_2()
2012                .pl_2()
2013                .pr_2p5()
2014                .pb_4()
2015                .child(
2016                    v_flex()
2017                        .id(("user-message", ix))
2018                        .bg(editor_bg_color)
2019                        .rounded_lg()
2020                        .shadow_md()
2021                        .border_1()
2022                        .border_color(colors.border)
2023                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2024                        .child(
2025                            v_flex()
2026                                .p_2p5()
2027                                .gap_1()
2028                                .children(message_content)
2029                                .when_some(editing_message_state, |this, state| {
2030                                    let focus_handle = state.editor.focus_handle(cx).clone();
2031
2032                                    this.child(
2033                                        h_flex()
2034                                            .w_full()
2035                                            .gap_1()
2036                                            .justify_between()
2037                                            .flex_wrap()
2038                                            .child(
2039                                                h_flex()
2040                                                    .gap_1p5()
2041                                                    .child(
2042                                                        div()
2043                                                            .opacity(0.8)
2044                                                            .child(
2045                                                                Icon::new(IconName::Warning)
2046                                                                    .size(IconSize::Indicator)
2047                                                                    .color(Color::Warning)
2048                                                            ),
2049                                                    )
2050                                                    .child(
2051                                                        Label::new("Editing will restart the thread from this point.")
2052                                                            .color(Color::Muted)
2053                                                            .size(LabelSize::XSmall),
2054                                                    ),
2055                                            )
2056                                            .child(
2057                                                h_flex()
2058                                                    .gap_0p5()
2059                                                    .child(
2060                                                        IconButton::new(
2061                                                            "cancel-edit-message",
2062                                                            IconName::Close,
2063                                                        )
2064                                                        .shape(ui::IconButtonShape::Square)
2065                                                        .icon_color(Color::Error)
2066                                                        .icon_size(IconSize::Small)
2067                                                        .tooltip({
2068                                                            let focus_handle = focus_handle.clone();
2069                                                            move |window, cx| {
2070                                                                Tooltip::for_action_in(
2071                                                                    "Cancel Edit",
2072                                                                    &menu::Cancel,
2073                                                                    &focus_handle,
2074                                                                    window,
2075                                                                    cx,
2076                                                                )
2077                                                            }
2078                                                        })
2079                                                        .on_click(cx.listener(Self::handle_cancel_click)),
2080                                                    )
2081                                                    .child(
2082                                                        IconButton::new(
2083                                                            "confirm-edit-message",
2084                                                            IconName::Return,
2085                                                        )
2086                                                        .disabled(state.editor.read(cx).is_empty(cx))
2087                                                        .shape(ui::IconButtonShape::Square)
2088                                                        .icon_color(Color::Muted)
2089                                                        .icon_size(IconSize::Small)
2090                                                        .tooltip({
2091                                                            let focus_handle = focus_handle.clone();
2092                                                            move |window, cx| {
2093                                                                Tooltip::for_action_in(
2094                                                                    "Regenerate",
2095                                                                    &menu::Confirm,
2096                                                                    &focus_handle,
2097                                                                    window,
2098                                                                    cx,
2099                                                                )
2100                                                            }
2101                                                        })
2102                                                        .on_click(
2103                                                            cx.listener(Self::handle_regenerate_click),
2104                                                        ),
2105                                                    ),
2106                                            )
2107                                    )
2108                                }),
2109                        )
2110                        .on_click(cx.listener({
2111                            let message_segments = message.segments.clone();
2112                            move |this, _, window, cx| {
2113                                this.start_editing_message(
2114                                    message_id,
2115                                    &message_segments,
2116                                    &message_creases,
2117                                    window,
2118                                    cx,
2119                                );
2120                            }
2121                        })),
2122                ),
2123            Role::Assistant => v_flex()
2124                .id(("message-container", ix))
2125                .px(RESPONSE_PADDING_X)
2126                .gap_2()
2127                .children(message_content)
2128                .when(has_tool_uses, |parent| {
2129                    parent.children(tool_uses.into_iter().map(|tool_use| {
2130                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2131                    }))
2132                }),
2133            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2134                v_flex()
2135                    .bg(colors.editor_background)
2136                    .rounded_sm()
2137                    .child(div().p_4().children(message_content)),
2138            ),
2139        };
2140
2141        let after_editing_message = self
2142            .editing_message
2143            .as_ref()
2144            .map_or(false, |(editing_message_id, _)| {
2145                message_id > *editing_message_id
2146            });
2147
2148        let panel_background = cx.theme().colors().panel_background;
2149
2150        let backdrop = div()
2151            .id("backdrop")
2152            .stop_mouse_events_except_scroll()
2153            .absolute()
2154            .inset_0()
2155            .size_full()
2156            .bg(panel_background)
2157            .opacity(0.8)
2158            .on_click(cx.listener(Self::handle_cancel_click));
2159
2160        v_flex()
2161            .w_full()
2162            .map(|parent| {
2163                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2164                    let mut is_pending = false;
2165                    let mut error = None;
2166                    if let Some(last_restore_checkpoint) =
2167                        self.thread.read(cx).last_restore_checkpoint()
2168                    {
2169                        if last_restore_checkpoint.message_id() == message_id {
2170                            match last_restore_checkpoint {
2171                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2172                                LastRestoreCheckpoint::Error { error: err, .. } => {
2173                                    error = Some(err.clone());
2174                                }
2175                            }
2176                        }
2177                    }
2178
2179                    let restore_checkpoint_button =
2180                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2181                            .icon(if error.is_some() {
2182                                IconName::XCircle
2183                            } else {
2184                                IconName::Undo
2185                            })
2186                            .icon_size(IconSize::XSmall)
2187                            .icon_position(IconPosition::Start)
2188                            .icon_color(if error.is_some() {
2189                                Some(Color::Error)
2190                            } else {
2191                                None
2192                            })
2193                            .label_size(LabelSize::XSmall)
2194                            .disabled(is_pending)
2195                            .on_click(cx.listener(move |this, _, _window, cx| {
2196                                this.thread.update(cx, |thread, cx| {
2197                                    thread
2198                                        .restore_checkpoint(checkpoint.clone(), cx)
2199                                        .detach_and_log_err(cx);
2200                                });
2201                            }));
2202
2203                    let restore_checkpoint_button = if is_pending {
2204                        restore_checkpoint_button
2205                            .with_animation(
2206                                ("pulsating-restore-checkpoint-button", ix),
2207                                Animation::new(Duration::from_secs(2))
2208                                    .repeat()
2209                                    .with_easing(pulsating_between(0.6, 1.)),
2210                                |label, delta| label.alpha(delta),
2211                            )
2212                            .into_any_element()
2213                    } else if let Some(error) = error {
2214                        restore_checkpoint_button
2215                            .tooltip(Tooltip::text(error.to_string()))
2216                            .into_any_element()
2217                    } else {
2218                        restore_checkpoint_button.into_any_element()
2219                    };
2220
2221                    parent.child(
2222                        h_flex()
2223                            .pt_2p5()
2224                            .px_2p5()
2225                            .w_full()
2226                            .gap_1()
2227                            .child(ui::Divider::horizontal())
2228                            .child(restore_checkpoint_button)
2229                            .child(ui::Divider::horizontal()),
2230                    )
2231                } else {
2232                    parent
2233                }
2234            })
2235            .when(is_first_message, |parent| {
2236                parent.child(self.render_rules_item(cx))
2237            })
2238            .child(styled_message)
2239            .when(is_generating && is_last_message, |this| {
2240                this.child(
2241                    h_flex()
2242                        .h_8()
2243                        .mt_2()
2244                        .mb_4()
2245                        .ml_4()
2246                        .py_1p5()
2247                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2248                )
2249            })
2250            .when(show_feedback, move |parent| {
2251                parent.child(feedback_items).when_some(
2252                    self.open_feedback_editors.get(&message_id),
2253                    move |parent, feedback_editor| {
2254                        let focus_handle = feedback_editor.focus_handle(cx);
2255                        parent.child(
2256                            v_flex()
2257                                .key_context("AgentFeedbackMessageEditor")
2258                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2259                                    this.open_feedback_editors.remove(&message_id);
2260                                    cx.notify();
2261                                }))
2262                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2263                                    this.submit_feedback_message(message_id, cx);
2264                                    cx.notify();
2265                                }))
2266                                .on_action(cx.listener(Self::confirm_editing_message))
2267                                .mb_2()
2268                                .mx_4()
2269                                .p_2()
2270                                .rounded_md()
2271                                .border_1()
2272                                .border_color(cx.theme().colors().border)
2273                                .bg(cx.theme().colors().editor_background)
2274                                .child(feedback_editor.clone())
2275                                .child(
2276                                    h_flex()
2277                                        .gap_1()
2278                                        .justify_end()
2279                                        .child(
2280                                            Button::new("dismiss-feedback-message", "Cancel")
2281                                                .label_size(LabelSize::Small)
2282                                                .key_binding(
2283                                                    KeyBinding::for_action_in(
2284                                                        &menu::Cancel,
2285                                                        &focus_handle,
2286                                                        window,
2287                                                        cx,
2288                                                    )
2289                                                    .map(|kb| kb.size(rems_from_px(10.))),
2290                                                )
2291                                                .on_click(cx.listener(
2292                                                    move |this, _, _window, cx| {
2293                                                        this.open_feedback_editors
2294                                                            .remove(&message_id);
2295                                                        cx.notify();
2296                                                    },
2297                                                )),
2298                                        )
2299                                        .child(
2300                                            Button::new(
2301                                                "submit-feedback-message",
2302                                                "Share Feedback",
2303                                            )
2304                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2305                                            .label_size(LabelSize::Small)
2306                                            .key_binding(
2307                                                KeyBinding::for_action_in(
2308                                                    &menu::Confirm,
2309                                                    &focus_handle,
2310                                                    window,
2311                                                    cx,
2312                                                )
2313                                                .map(|kb| kb.size(rems_from_px(10.))),
2314                                            )
2315                                            .on_click(
2316                                                cx.listener(move |this, _, _window, cx| {
2317                                                    this.submit_feedback_message(message_id, cx);
2318                                                    cx.notify()
2319                                                }),
2320                                            ),
2321                                        ),
2322                                ),
2323                        )
2324                    },
2325                )
2326            })
2327            .when(after_editing_message, |parent| {
2328                // Backdrop to dim out the whole thread below the editing user message
2329                parent.relative().child(backdrop)
2330            })
2331            .into_any()
2332    }
2333
2334    fn render_message_content(
2335        &self,
2336        message_id: MessageId,
2337        rendered_message: &RenderedMessage,
2338        has_tool_uses: bool,
2339        workspace: WeakEntity<Workspace>,
2340        window: &Window,
2341        cx: &Context<Self>,
2342    ) -> impl IntoElement {
2343        let is_last_message = self.messages.last() == Some(&message_id);
2344        let is_generating = self.thread.read(cx).is_generating();
2345        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2346            rendered_message
2347                .segments
2348                .iter()
2349                .enumerate()
2350                .next_back()
2351                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2352                .map(|(index, _)| index)
2353        } else {
2354            None
2355        };
2356
2357        let message_role = self
2358            .thread
2359            .read(cx)
2360            .message(message_id)
2361            .map(|m| m.role)
2362            .unwrap_or(Role::User);
2363
2364        let is_assistant_message = message_role == Role::Assistant;
2365        let is_user_message = message_role == Role::User;
2366
2367        v_flex()
2368            .text_ui(cx)
2369            .gap_2()
2370            .when(is_user_message, |this| this.text_xs())
2371            .children(
2372                rendered_message.segments.iter().enumerate().map(
2373                    |(index, segment)| match segment {
2374                        RenderedMessageSegment::Thinking {
2375                            content,
2376                            scroll_handle,
2377                        } => self
2378                            .render_message_thinking_segment(
2379                                message_id,
2380                                index,
2381                                content.clone(),
2382                                &scroll_handle,
2383                                Some(index) == pending_thinking_segment_index,
2384                                window,
2385                                cx,
2386                            )
2387                            .into_any_element(),
2388                        RenderedMessageSegment::Text(markdown) => {
2389                            let markdown_element = MarkdownElement::new(
2390                                markdown.clone(),
2391                                if is_user_message {
2392                                    let mut style = default_markdown_style(window, cx);
2393                                    let mut text_style = window.text_style();
2394                                    let theme_settings = ThemeSettings::get_global(cx);
2395
2396                                    let buffer_font = theme_settings.buffer_font.family.clone();
2397                                    let buffer_font_size = TextSize::Small.rems(cx);
2398
2399                                    text_style.refine(&TextStyleRefinement {
2400                                        font_family: Some(buffer_font),
2401                                        font_size: Some(buffer_font_size.into()),
2402                                        ..Default::default()
2403                                    });
2404
2405                                    style.base_text_style = text_style;
2406                                    style
2407                                } else {
2408                                    default_markdown_style(window, cx)
2409                                },
2410                            );
2411
2412                            let markdown_element = if is_assistant_message {
2413                                markdown_element.code_block_renderer(
2414                                    markdown::CodeBlockRenderer::Custom {
2415                                        render: Arc::new({
2416                                            let workspace = workspace.clone();
2417                                            let active_thread = cx.entity();
2418                                            move |kind,
2419                                                  parsed_markdown,
2420                                                  range,
2421                                                  metadata,
2422                                                  window,
2423                                                  cx| {
2424                                                render_markdown_code_block(
2425                                                    message_id,
2426                                                    range.start,
2427                                                    kind,
2428                                                    parsed_markdown,
2429                                                    metadata,
2430                                                    active_thread.clone(),
2431                                                    workspace.clone(),
2432                                                    window,
2433                                                    cx,
2434                                                )
2435                                            }
2436                                        }),
2437                                        transform: Some(Arc::new({
2438                                            let active_thread = cx.entity();
2439
2440                                            move |element, range, _, _, cx| {
2441                                                let is_expanded = active_thread
2442                                                    .read(cx)
2443                                                    .is_codeblock_expanded(message_id, range.start);
2444
2445                                                if is_expanded {
2446                                                    return element;
2447                                                }
2448
2449                                                element
2450                                            }
2451                                        })),
2452                                    },
2453                                )
2454                            } else {
2455                                markdown_element.code_block_renderer(
2456                                    markdown::CodeBlockRenderer::Default {
2457                                        copy_button: false,
2458                                        copy_button_on_hover: false,
2459                                        border: true,
2460                                    },
2461                                )
2462                            };
2463
2464                            div()
2465                                .child(markdown_element.on_url_click({
2466                                    let workspace = self.workspace.clone();
2467                                    move |text, window, cx| {
2468                                        open_markdown_link(text, workspace.clone(), window, cx);
2469                                    }
2470                                }))
2471                                .into_any_element()
2472                        }
2473                    },
2474                ),
2475            )
2476    }
2477
2478    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2479        cx.theme().colors().border.opacity(0.5)
2480    }
2481
2482    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2483        cx.theme()
2484            .colors()
2485            .element_background
2486            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2487    }
2488
2489    fn render_message_thinking_segment(
2490        &self,
2491        message_id: MessageId,
2492        ix: usize,
2493        markdown: Entity<Markdown>,
2494        scroll_handle: &ScrollHandle,
2495        pending: bool,
2496        window: &Window,
2497        cx: &Context<Self>,
2498    ) -> impl IntoElement {
2499        let is_open = self
2500            .expanded_thinking_segments
2501            .get(&(message_id, ix))
2502            .copied()
2503            .unwrap_or_default();
2504
2505        let editor_bg = cx.theme().colors().panel_background;
2506
2507        div().map(|this| {
2508            if pending {
2509                this.v_flex()
2510                    .mt_neg_2()
2511                    .mb_1p5()
2512                    .child(
2513                        h_flex()
2514                            .group("disclosure-header")
2515                            .justify_between()
2516                            .child(
2517                                h_flex()
2518                                    .gap_1p5()
2519                                    .child(
2520                                        Icon::new(IconName::LightBulb)
2521                                            .size(IconSize::XSmall)
2522                                            .color(Color::Muted),
2523                                    )
2524                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2525                            )
2526                            .child(
2527                                h_flex()
2528                                    .gap_1()
2529                                    .child(
2530                                        div().visible_on_hover("disclosure-header").child(
2531                                            Disclosure::new("thinking-disclosure", is_open)
2532                                                .opened_icon(IconName::ChevronUp)
2533                                                .closed_icon(IconName::ChevronDown)
2534                                                .on_click(cx.listener({
2535                                                    move |this, _event, _window, _cx| {
2536                                                        let is_open = this
2537                                                            .expanded_thinking_segments
2538                                                            .entry((message_id, ix))
2539                                                            .or_insert(false);
2540
2541                                                        *is_open = !*is_open;
2542                                                    }
2543                                                })),
2544                                        ),
2545                                    )
2546                                    .child({
2547                                        Icon::new(IconName::ArrowCircle)
2548                                            .color(Color::Accent)
2549                                            .size(IconSize::Small)
2550                                            .with_animation(
2551                                                "arrow-circle",
2552                                                Animation::new(Duration::from_secs(2)).repeat(),
2553                                                |icon, delta| {
2554                                                    icon.transform(Transformation::rotate(
2555                                                        percentage(delta),
2556                                                    ))
2557                                                },
2558                                            )
2559                                    }),
2560                            ),
2561                    )
2562                    .when(!is_open, |this| {
2563                        let gradient_overlay = div()
2564                            .rounded_b_lg()
2565                            .h_full()
2566                            .absolute()
2567                            .w_full()
2568                            .bottom_0()
2569                            .left_0()
2570                            .bg(linear_gradient(
2571                                180.,
2572                                linear_color_stop(editor_bg, 1.),
2573                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2574                            ));
2575
2576                        this.child(
2577                            div()
2578                                .relative()
2579                                .bg(editor_bg)
2580                                .rounded_b_lg()
2581                                .mt_2()
2582                                .pl_4()
2583                                .child(
2584                                    div()
2585                                        .id(("thinking-content", ix))
2586                                        .max_h_20()
2587                                        .track_scroll(scroll_handle)
2588                                        .text_ui_sm(cx)
2589                                        .overflow_hidden()
2590                                        .child(
2591                                            MarkdownElement::new(
2592                                                markdown.clone(),
2593                                                default_markdown_style(window, cx),
2594                                            )
2595                                            .on_url_click({
2596                                                let workspace = self.workspace.clone();
2597                                                move |text, window, cx| {
2598                                                    open_markdown_link(
2599                                                        text,
2600                                                        workspace.clone(),
2601                                                        window,
2602                                                        cx,
2603                                                    );
2604                                                }
2605                                            }),
2606                                        ),
2607                                )
2608                                .child(gradient_overlay),
2609                        )
2610                    })
2611                    .when(is_open, |this| {
2612                        this.child(
2613                            div()
2614                                .id(("thinking-content", ix))
2615                                .h_full()
2616                                .bg(editor_bg)
2617                                .text_ui_sm(cx)
2618                                .child(
2619                                    MarkdownElement::new(
2620                                        markdown.clone(),
2621                                        default_markdown_style(window, cx),
2622                                    )
2623                                    .on_url_click({
2624                                        let workspace = self.workspace.clone();
2625                                        move |text, window, cx| {
2626                                            open_markdown_link(text, workspace.clone(), window, cx);
2627                                        }
2628                                    }),
2629                                ),
2630                        )
2631                    })
2632            } else {
2633                this.v_flex()
2634                    .mt_neg_2()
2635                    .child(
2636                        h_flex()
2637                            .group("disclosure-header")
2638                            .pr_1()
2639                            .justify_between()
2640                            .opacity(0.8)
2641                            .hover(|style| style.opacity(1.))
2642                            .child(
2643                                h_flex()
2644                                    .gap_1p5()
2645                                    .child(
2646                                        Icon::new(IconName::LightBulb)
2647                                            .size(IconSize::XSmall)
2648                                            .color(Color::Muted),
2649                                    )
2650                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2651                            )
2652                            .child(
2653                                div().visible_on_hover("disclosure-header").child(
2654                                    Disclosure::new("thinking-disclosure", is_open)
2655                                        .opened_icon(IconName::ChevronUp)
2656                                        .closed_icon(IconName::ChevronDown)
2657                                        .on_click(cx.listener({
2658                                            move |this, _event, _window, _cx| {
2659                                                let is_open = this
2660                                                    .expanded_thinking_segments
2661                                                    .entry((message_id, ix))
2662                                                    .or_insert(false);
2663
2664                                                *is_open = !*is_open;
2665                                            }
2666                                        })),
2667                                ),
2668                            ),
2669                    )
2670                    .child(
2671                        div()
2672                            .id(("thinking-content", ix))
2673                            .relative()
2674                            .mt_1p5()
2675                            .ml_1p5()
2676                            .pl_2p5()
2677                            .border_l_1()
2678                            .border_color(cx.theme().colors().border_variant)
2679                            .text_ui_sm(cx)
2680                            .when(is_open, |this| {
2681                                this.child(
2682                                    MarkdownElement::new(
2683                                        markdown.clone(),
2684                                        default_markdown_style(window, cx),
2685                                    )
2686                                    .on_url_click({
2687                                        let workspace = self.workspace.clone();
2688                                        move |text, window, cx| {
2689                                            open_markdown_link(text, workspace.clone(), window, cx);
2690                                        }
2691                                    }),
2692                                )
2693                            }),
2694                    )
2695            }
2696        })
2697    }
2698
2699    fn render_tool_use(
2700        &self,
2701        tool_use: ToolUse,
2702        window: &mut Window,
2703        workspace: WeakEntity<Workspace>,
2704        cx: &mut Context<Self>,
2705    ) -> impl IntoElement + use<> {
2706        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2707            return card.render(&tool_use.status, window, workspace, cx);
2708        }
2709
2710        let is_open = self
2711            .expanded_tool_uses
2712            .get(&tool_use.id)
2713            .copied()
2714            .unwrap_or_default();
2715
2716        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2717
2718        let fs = self
2719            .workspace
2720            .upgrade()
2721            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2722        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2723        let needs_confirmation_tools = tool_use.needs_confirmation;
2724
2725        let status_icons = div().child(match &tool_use.status {
2726            ToolUseStatus::NeedsConfirmation => {
2727                let icon = Icon::new(IconName::Warning)
2728                    .color(Color::Warning)
2729                    .size(IconSize::Small);
2730                icon.into_any_element()
2731            }
2732            ToolUseStatus::Pending
2733            | ToolUseStatus::InputStillStreaming
2734            | ToolUseStatus::Running => {
2735                let icon = Icon::new(IconName::ArrowCircle)
2736                    .color(Color::Accent)
2737                    .size(IconSize::Small);
2738                icon.with_animation(
2739                    "arrow-circle",
2740                    Animation::new(Duration::from_secs(2)).repeat(),
2741                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2742                )
2743                .into_any_element()
2744            }
2745            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2746            ToolUseStatus::Error(_) => {
2747                let icon = Icon::new(IconName::Close)
2748                    .color(Color::Error)
2749                    .size(IconSize::Small);
2750                icon.into_any_element()
2751            }
2752        });
2753
2754        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2755        let results_content_container = || v_flex().p_2().gap_0p5();
2756
2757        let results_content = v_flex()
2758            .gap_1()
2759            .child(
2760                results_content_container()
2761                    .child(
2762                        Label::new("Input")
2763                            .size(LabelSize::XSmall)
2764                            .color(Color::Muted)
2765                            .buffer_font(cx),
2766                    )
2767                    .child(
2768                        div()
2769                            .w_full()
2770                            .text_ui_sm(cx)
2771                            .children(rendered_tool_use.as_ref().map(|rendered| {
2772                                MarkdownElement::new(
2773                                    rendered.input.clone(),
2774                                    tool_use_markdown_style(window, cx),
2775                                )
2776                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2777                                    copy_button: false,
2778                                    copy_button_on_hover: false,
2779                                    border: false,
2780                                })
2781                                .on_url_click({
2782                                    let workspace = self.workspace.clone();
2783                                    move |text, window, cx| {
2784                                        open_markdown_link(text, workspace.clone(), window, cx);
2785                                    }
2786                                })
2787                            })),
2788                    ),
2789            )
2790            .map(|container| match tool_use.status {
2791                ToolUseStatus::Finished(_) => container.child(
2792                    results_content_container()
2793                        .border_t_1()
2794                        .border_color(self.tool_card_border_color(cx))
2795                        .child(
2796                            Label::new("Result")
2797                                .size(LabelSize::XSmall)
2798                                .color(Color::Muted)
2799                                .buffer_font(cx),
2800                        )
2801                        .child(div().w_full().text_ui_sm(cx).children(
2802                            rendered_tool_use.as_ref().map(|rendered| {
2803                                MarkdownElement::new(
2804                                    rendered.output.clone(),
2805                                    tool_use_markdown_style(window, cx),
2806                                )
2807                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2808                                    copy_button: false,
2809                                    copy_button_on_hover: false,
2810                                    border: false,
2811                                })
2812                                .on_url_click({
2813                                    let workspace = self.workspace.clone();
2814                                    move |text, window, cx| {
2815                                        open_markdown_link(text, workspace.clone(), window, cx);
2816                                    }
2817                                })
2818                                .into_any_element()
2819                            }),
2820                        )),
2821                ),
2822                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2823                    results_content_container()
2824                        .border_t_1()
2825                        .border_color(self.tool_card_border_color(cx))
2826                        .child(
2827                            h_flex()
2828                                .gap_1()
2829                                .child(
2830                                    Icon::new(IconName::ArrowCircle)
2831                                        .size(IconSize::Small)
2832                                        .color(Color::Accent)
2833                                        .with_animation(
2834                                            "arrow-circle",
2835                                            Animation::new(Duration::from_secs(2)).repeat(),
2836                                            |icon, delta| {
2837                                                icon.transform(Transformation::rotate(percentage(
2838                                                    delta,
2839                                                )))
2840                                            },
2841                                        ),
2842                                )
2843                                .child(
2844                                    Label::new("Running…")
2845                                        .size(LabelSize::XSmall)
2846                                        .color(Color::Muted)
2847                                        .buffer_font(cx),
2848                                ),
2849                        ),
2850                ),
2851                ToolUseStatus::Error(_) => container.child(
2852                    results_content_container()
2853                        .border_t_1()
2854                        .border_color(self.tool_card_border_color(cx))
2855                        .child(
2856                            Label::new("Error")
2857                                .size(LabelSize::XSmall)
2858                                .color(Color::Muted)
2859                                .buffer_font(cx),
2860                        )
2861                        .child(
2862                            div()
2863                                .text_ui_sm(cx)
2864                                .children(rendered_tool_use.as_ref().map(|rendered| {
2865                                    MarkdownElement::new(
2866                                        rendered.output.clone(),
2867                                        tool_use_markdown_style(window, cx),
2868                                    )
2869                                    .on_url_click({
2870                                        let workspace = self.workspace.clone();
2871                                        move |text, window, cx| {
2872                                            open_markdown_link(text, workspace.clone(), window, cx);
2873                                        }
2874                                    })
2875                                    .into_any_element()
2876                                })),
2877                        ),
2878                ),
2879                ToolUseStatus::Pending => container,
2880                ToolUseStatus::NeedsConfirmation => container.child(
2881                    results_content_container()
2882                        .border_t_1()
2883                        .border_color(self.tool_card_border_color(cx))
2884                        .child(
2885                            Label::new("Asking Permission")
2886                                .size(LabelSize::Small)
2887                                .color(Color::Muted)
2888                                .buffer_font(cx),
2889                        ),
2890                ),
2891            });
2892
2893        let gradient_overlay = |color: Hsla| {
2894            div()
2895                .h_full()
2896                .absolute()
2897                .w_12()
2898                .bottom_0()
2899                .map(|element| {
2900                    if is_status_finished {
2901                        element.right_6()
2902                    } else {
2903                        element.right(px(44.))
2904                    }
2905                })
2906                .bg(linear_gradient(
2907                    90.,
2908                    linear_color_stop(color, 1.),
2909                    linear_color_stop(color.opacity(0.2), 0.),
2910                ))
2911        };
2912
2913        v_flex().gap_1().mb_2().map(|element| {
2914            if !needs_confirmation_tools {
2915                element.child(
2916                    v_flex()
2917                        .child(
2918                            h_flex()
2919                                .group("disclosure-header")
2920                                .relative()
2921                                .gap_1p5()
2922                                .justify_between()
2923                                .opacity(0.8)
2924                                .hover(|style| style.opacity(1.))
2925                                .when(!is_status_finished, |this| this.pr_2())
2926                                .child(
2927                                    h_flex()
2928                                        .id("tool-label-container")
2929                                        .gap_1p5()
2930                                        .max_w_full()
2931                                        .overflow_x_scroll()
2932                                        .child(
2933                                            Icon::new(tool_use.icon)
2934                                                .size(IconSize::XSmall)
2935                                                .color(Color::Muted),
2936                                        )
2937                                        .child(
2938                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2939                                                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| {
2940                                                    open_markdown_link(text, workspace.clone(), window, cx);
2941                                                }}))
2942                                            ),
2943                                        ),
2944                                )
2945                                .child(
2946                                    h_flex()
2947                                        .gap_1()
2948                                        .child(
2949                                            div().visible_on_hover("disclosure-header").child(
2950                                                Disclosure::new("tool-use-disclosure", is_open)
2951                                                    .opened_icon(IconName::ChevronUp)
2952                                                    .closed_icon(IconName::ChevronDown)
2953                                                    .on_click(cx.listener({
2954                                                        let tool_use_id = tool_use.id.clone();
2955                                                        move |this, _event, _window, _cx| {
2956                                                            let is_open = this
2957                                                                .expanded_tool_uses
2958                                                                .entry(tool_use_id.clone())
2959                                                                .or_insert(false);
2960
2961                                                            *is_open = !*is_open;
2962                                                        }
2963                                                    })),
2964                                            ),
2965                                        )
2966                                        .child(status_icons),
2967                                )
2968                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2969                        )
2970                        .map(|parent| {
2971                            if !is_open {
2972                                return parent;
2973                            }
2974
2975                            parent.child(
2976                                v_flex()
2977                                    .mt_1()
2978                                    .border_1()
2979                                    .border_color(self.tool_card_border_color(cx))
2980                                    .bg(cx.theme().colors().editor_background)
2981                                    .rounded_lg()
2982                                    .child(results_content),
2983                            )
2984                        }),
2985                )
2986            } else {
2987                v_flex()
2988                    .mb_2()
2989                    .rounded_lg()
2990                    .border_1()
2991                    .border_color(self.tool_card_border_color(cx))
2992                    .overflow_hidden()
2993                    .child(
2994                        h_flex()
2995                            .group("disclosure-header")
2996                            .relative()
2997                            .justify_between()
2998                            .py_1()
2999                            .map(|element| {
3000                                if is_status_finished {
3001                                    element.pl_2().pr_0p5()
3002                                } else {
3003                                    element.px_2()
3004                                }
3005                            })
3006                            .bg(self.tool_card_header_bg(cx))
3007                            .map(|element| {
3008                                if is_open {
3009                                    element.border_b_1().rounded_t_md()
3010                                } else if needs_confirmation {
3011                                    element.rounded_t_md()
3012                                } else {
3013                                    element.rounded_md()
3014                                }
3015                            })
3016                            .border_color(self.tool_card_border_color(cx))
3017                            .child(
3018                                h_flex()
3019                                    .id("tool-label-container")
3020                                    .gap_1p5()
3021                                    .max_w_full()
3022                                    .overflow_x_scroll()
3023                                    .child(
3024                                        Icon::new(tool_use.icon)
3025                                            .size(IconSize::XSmall)
3026                                            .color(Color::Muted),
3027                                    )
3028                                    .child(
3029                                        h_flex().pr_8().text_ui_sm(cx).children(
3030                                            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| {
3031                                                open_markdown_link(text, workspace.clone(), window, cx);
3032                                            }}))
3033                                        ),
3034                                    ),
3035                            )
3036                            .child(
3037                                h_flex()
3038                                    .gap_1()
3039                                    .child(
3040                                        div().visible_on_hover("disclosure-header").child(
3041                                            Disclosure::new("tool-use-disclosure", is_open)
3042                                                .opened_icon(IconName::ChevronUp)
3043                                                .closed_icon(IconName::ChevronDown)
3044                                                .on_click(cx.listener({
3045                                                    let tool_use_id = tool_use.id.clone();
3046                                                    move |this, _event, _window, _cx| {
3047                                                        let is_open = this
3048                                                            .expanded_tool_uses
3049                                                            .entry(tool_use_id.clone())
3050                                                            .or_insert(false);
3051
3052                                                        *is_open = !*is_open;
3053                                                    }
3054                                                })),
3055                                        ),
3056                                    )
3057                                    .child(status_icons),
3058                            )
3059                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3060                    )
3061                    .map(|parent| {
3062                        if !is_open {
3063                            return parent;
3064                        }
3065
3066                        parent.child(
3067                            v_flex()
3068                                .bg(cx.theme().colors().editor_background)
3069                                .map(|element| {
3070                                    if  needs_confirmation {
3071                                        element.rounded_none()
3072                                    } else {
3073                                        element.rounded_b_lg()
3074                                    }
3075                                })
3076                                .child(results_content),
3077                        )
3078                    })
3079                    .when(needs_confirmation, |this| {
3080                        this.child(
3081                            h_flex()
3082                                .py_1()
3083                                .pl_2()
3084                                .pr_1()
3085                                .gap_1()
3086                                .justify_between()
3087                                .bg(cx.theme().colors().editor_background)
3088                                .border_t_1()
3089                                .border_color(self.tool_card_border_color(cx))
3090                                .rounded_b_lg()
3091                                .child(
3092                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3093                                )
3094                                .child(
3095                                    h_flex()
3096                                        .gap_0p5()
3097                                        .child({
3098                                            let tool_id = tool_use.id.clone();
3099                                            Button::new(
3100                                                "always-allow-tool-action",
3101                                                "Always Allow",
3102                                            )
3103                                            .label_size(LabelSize::Small)
3104                                            .icon(IconName::CheckDouble)
3105                                            .icon_position(IconPosition::Start)
3106                                            .icon_size(IconSize::Small)
3107                                            .icon_color(Color::Success)
3108                                            .tooltip(move |window, cx|  {
3109                                                Tooltip::with_meta(
3110                                                    "Never ask for permission",
3111                                                    None,
3112                                                    "Restore the original behavior in your Agent Panel settings",
3113                                                    window,
3114                                                    cx,
3115                                                )
3116                                            })
3117                                            .on_click(cx.listener(
3118                                                move |this, event, window, cx| {
3119                                                    if let Some(fs) = fs.clone() {
3120                                                        update_settings_file::<AgentSettings>(
3121                                                            fs.clone(),
3122                                                            cx,
3123                                                            |settings, _| {
3124                                                                settings.set_always_allow_tool_actions(true);
3125                                                            },
3126                                                        );
3127                                                    }
3128                                                    this.handle_allow_tool(
3129                                                        tool_id.clone(),
3130                                                        event,
3131                                                        window,
3132                                                        cx,
3133                                                    )
3134                                                },
3135                                            ))
3136                                        })
3137                                        .child(ui::Divider::vertical())
3138                                        .child({
3139                                            let tool_id = tool_use.id.clone();
3140                                            Button::new("allow-tool-action", "Allow")
3141                                                .label_size(LabelSize::Small)
3142                                                .icon(IconName::Check)
3143                                                .icon_position(IconPosition::Start)
3144                                                .icon_size(IconSize::Small)
3145                                                .icon_color(Color::Success)
3146                                                .on_click(cx.listener(
3147                                                    move |this, event, window, cx| {
3148                                                        this.handle_allow_tool(
3149                                                            tool_id.clone(),
3150                                                            event,
3151                                                            window,
3152                                                            cx,
3153                                                        )
3154                                                    },
3155                                                ))
3156                                        })
3157                                        .child({
3158                                            let tool_id = tool_use.id.clone();
3159                                            let tool_name: Arc<str> = tool_use.name.into();
3160                                            Button::new("deny-tool", "Deny")
3161                                                .label_size(LabelSize::Small)
3162                                                .icon(IconName::Close)
3163                                                .icon_position(IconPosition::Start)
3164                                                .icon_size(IconSize::Small)
3165                                                .icon_color(Color::Error)
3166                                                .on_click(cx.listener(
3167                                                    move |this, event, window, cx| {
3168                                                        this.handle_deny_tool(
3169                                                            tool_id.clone(),
3170                                                            tool_name.clone(),
3171                                                            event,
3172                                                            window,
3173                                                            cx,
3174                                                        )
3175                                                    },
3176                                                ))
3177                                        }),
3178                                ),
3179                        )
3180                    })
3181            }
3182        }).into_any_element()
3183    }
3184
3185    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3186        let project_context = self.thread.read(cx).project_context();
3187        let project_context = project_context.borrow();
3188        let Some(project_context) = project_context.as_ref() else {
3189            return div().into_any();
3190        };
3191
3192        let user_rules_text = if project_context.user_rules.is_empty() {
3193            None
3194        } else if project_context.user_rules.len() == 1 {
3195            let user_rules = &project_context.user_rules[0];
3196
3197            match user_rules.title.as_ref() {
3198                Some(title) => Some(format!("Using \"{title}\" user rule")),
3199                None => Some("Using user rule".into()),
3200            }
3201        } else {
3202            Some(format!(
3203                "Using {} user rules",
3204                project_context.user_rules.len()
3205            ))
3206        };
3207
3208        let first_user_rules_id = project_context
3209            .user_rules
3210            .first()
3211            .map(|user_rules| user_rules.uuid.0);
3212
3213        let rules_files = project_context
3214            .worktrees
3215            .iter()
3216            .filter_map(|worktree| worktree.rules_file.as_ref())
3217            .collect::<Vec<_>>();
3218
3219        let rules_file_text = match rules_files.as_slice() {
3220            &[] => None,
3221            &[rules_file] => Some(format!(
3222                "Using project {:?} file",
3223                rules_file.path_in_worktree
3224            )),
3225            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3226        };
3227
3228        if user_rules_text.is_none() && rules_file_text.is_none() {
3229            return div().into_any();
3230        }
3231
3232        v_flex()
3233            .pt_2()
3234            .px_2p5()
3235            .gap_1()
3236            .when_some(user_rules_text, |parent, user_rules_text| {
3237                parent.child(
3238                    h_flex()
3239                        .w_full()
3240                        .child(
3241                            Icon::new(RULES_ICON)
3242                                .size(IconSize::XSmall)
3243                                .color(Color::Disabled),
3244                        )
3245                        .child(
3246                            Label::new(user_rules_text)
3247                                .size(LabelSize::XSmall)
3248                                .color(Color::Muted)
3249                                .truncate()
3250                                .buffer_font(cx)
3251                                .ml_1p5()
3252                                .mr_0p5(),
3253                        )
3254                        .child(
3255                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3256                                .shape(ui::IconButtonShape::Square)
3257                                .icon_size(IconSize::XSmall)
3258                                .icon_color(Color::Ignored)
3259                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3260                                .tooltip(Tooltip::text("View User Rules"))
3261                                .on_click(move |_event, window, cx| {
3262                                    window.dispatch_action(
3263                                        Box::new(OpenRulesLibrary {
3264                                            prompt_to_select: first_user_rules_id,
3265                                        }),
3266                                        cx,
3267                                    )
3268                                }),
3269                        ),
3270                )
3271            })
3272            .when_some(rules_file_text, |parent, rules_file_text| {
3273                parent.child(
3274                    h_flex()
3275                        .w_full()
3276                        .child(
3277                            Icon::new(IconName::File)
3278                                .size(IconSize::XSmall)
3279                                .color(Color::Disabled),
3280                        )
3281                        .child(
3282                            Label::new(rules_file_text)
3283                                .size(LabelSize::XSmall)
3284                                .color(Color::Muted)
3285                                .buffer_font(cx)
3286                                .ml_1p5()
3287                                .mr_0p5(),
3288                        )
3289                        .child(
3290                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3291                                .shape(ui::IconButtonShape::Square)
3292                                .icon_size(IconSize::XSmall)
3293                                .icon_color(Color::Ignored)
3294                                .on_click(cx.listener(Self::handle_open_rules))
3295                                .tooltip(Tooltip::text("View Rules")),
3296                        ),
3297                )
3298            })
3299            .into_any()
3300    }
3301
3302    fn handle_allow_tool(
3303        &mut self,
3304        tool_use_id: LanguageModelToolUseId,
3305        _: &ClickEvent,
3306        window: &mut Window,
3307        cx: &mut Context<Self>,
3308    ) {
3309        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3310            .thread
3311            .read(cx)
3312            .pending_tool(&tool_use_id)
3313            .map(|tool_use| tool_use.status.clone())
3314        {
3315            self.thread.update(cx, |thread, cx| {
3316                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3317                    thread.run_tool(
3318                        c.tool_use_id.clone(),
3319                        c.ui_text.clone(),
3320                        c.input.clone(),
3321                        c.request.clone(),
3322                        c.tool.clone(),
3323                        configured.model,
3324                        Some(window.window_handle()),
3325                        cx,
3326                    );
3327                }
3328            });
3329        }
3330    }
3331
3332    fn handle_deny_tool(
3333        &mut self,
3334        tool_use_id: LanguageModelToolUseId,
3335        tool_name: Arc<str>,
3336        _: &ClickEvent,
3337        window: &mut Window,
3338        cx: &mut Context<Self>,
3339    ) {
3340        let window_handle = window.window_handle();
3341        self.thread.update(cx, |thread, cx| {
3342            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3343        });
3344    }
3345
3346    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3347        let project_context = self.thread.read(cx).project_context();
3348        let project_context = project_context.borrow();
3349        let Some(project_context) = project_context.as_ref() else {
3350            return;
3351        };
3352
3353        let project_entry_ids = project_context
3354            .worktrees
3355            .iter()
3356            .flat_map(|worktree| worktree.rules_file.as_ref())
3357            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3358            .collect::<Vec<_>>();
3359
3360        self.workspace
3361            .update(cx, move |workspace, cx| {
3362                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3363                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3364                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3365                let project = workspace.project().read(cx);
3366                let project_paths = project_entry_ids
3367                    .into_iter()
3368                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3369                    .collect::<Vec<_>>();
3370                for project_path in project_paths {
3371                    workspace
3372                        .open_path(project_path, None, true, window, cx)
3373                        .detach_and_log_err(cx);
3374                }
3375            })
3376            .ok();
3377    }
3378
3379    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3380        for window in self.notifications.drain(..) {
3381            window
3382                .update(cx, |_, window, _| {
3383                    window.remove_window();
3384                })
3385                .ok();
3386
3387            self.notification_subscriptions.remove(&window);
3388        }
3389    }
3390
3391    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3392        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3393            return None;
3394        }
3395
3396        Some(
3397            div()
3398                .occlude()
3399                .id("active-thread-scrollbar")
3400                .on_mouse_move(cx.listener(|_, _, _, cx| {
3401                    cx.notify();
3402                    cx.stop_propagation()
3403                }))
3404                .on_hover(|_, _, cx| {
3405                    cx.stop_propagation();
3406                })
3407                .on_any_mouse_down(|_, _, cx| {
3408                    cx.stop_propagation();
3409                })
3410                .on_mouse_up(
3411                    MouseButton::Left,
3412                    cx.listener(|_, _, _, cx| {
3413                        cx.stop_propagation();
3414                    }),
3415                )
3416                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3417                    cx.notify();
3418                }))
3419                .h_full()
3420                .absolute()
3421                .right_1()
3422                .top_1()
3423                .bottom_0()
3424                .w(px(12.))
3425                .cursor_default()
3426                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3427        )
3428    }
3429
3430    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3431        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3432        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3433            cx.background_executor()
3434                .timer(SCROLLBAR_SHOW_INTERVAL)
3435                .await;
3436            thread
3437                .update(cx, |thread, cx| {
3438                    if !thread.scrollbar_state.is_dragging() {
3439                        thread.show_scrollbar = false;
3440                        cx.notify();
3441                    }
3442                })
3443                .log_err();
3444        }))
3445    }
3446
3447    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3448        self.expanded_code_blocks
3449            .get(&(message_id, ix))
3450            .copied()
3451            .unwrap_or(true)
3452    }
3453
3454    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3455        let is_expanded = self
3456            .expanded_code_blocks
3457            .entry((message_id, ix))
3458            .or_insert(true);
3459        *is_expanded = !*is_expanded;
3460    }
3461
3462    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3463        self.list_state.reset(self.messages.len());
3464        cx.notify();
3465    }
3466}
3467
3468pub enum ActiveThreadEvent {
3469    EditingMessageTokenCountChanged,
3470}
3471
3472impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3473
3474impl Render for ActiveThread {
3475    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3476        v_flex()
3477            .size_full()
3478            .relative()
3479            .bg(cx.theme().colors().panel_background)
3480            .on_mouse_move(cx.listener(|this, _, _, cx| {
3481                this.show_scrollbar = true;
3482                this.hide_scrollbar_later(cx);
3483                cx.notify();
3484            }))
3485            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3486                this.show_scrollbar = true;
3487                this.hide_scrollbar_later(cx);
3488                cx.notify();
3489            }))
3490            .on_mouse_up(
3491                MouseButton::Left,
3492                cx.listener(|this, _, _, cx| {
3493                    this.hide_scrollbar_later(cx);
3494                }),
3495            )
3496            .child(list(self.list_state.clone()).flex_grow())
3497            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3498                this.child(scrollbar)
3499            })
3500    }
3501}
3502
3503pub(crate) fn open_active_thread_as_markdown(
3504    thread: Entity<Thread>,
3505    workspace: Entity<Workspace>,
3506    window: &mut Window,
3507    cx: &mut App,
3508) -> Task<anyhow::Result<()>> {
3509    let markdown_language_task = workspace
3510        .read(cx)
3511        .app_state()
3512        .languages
3513        .language_for_name("Markdown");
3514
3515    window.spawn(cx, async move |cx| {
3516        let markdown_language = markdown_language_task.await?;
3517
3518        workspace.update_in(cx, |workspace, window, cx| {
3519            let thread = thread.read(cx);
3520            let markdown = thread.to_markdown(cx)?;
3521            let thread_summary = thread.summary().or_default().to_string();
3522
3523            let project = workspace.project().clone();
3524
3525            if !project.read(cx).is_local() {
3526                anyhow::bail!("failed to open active thread as markdown in remote project");
3527            }
3528
3529            let buffer = project.update(cx, |project, cx| {
3530                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3531            });
3532            let buffer =
3533                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3534
3535            workspace.add_item_to_active_pane(
3536                Box::new(cx.new(|cx| {
3537                    let mut editor =
3538                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3539                    editor.set_breadcrumb_header(thread_summary);
3540                    editor
3541                })),
3542                None,
3543                true,
3544                window,
3545                cx,
3546            );
3547
3548            anyhow::Ok(())
3549        })??;
3550        anyhow::Ok(())
3551    })
3552}
3553
3554pub(crate) fn open_context(
3555    context: &AgentContextHandle,
3556    workspace: Entity<Workspace>,
3557    window: &mut Window,
3558    cx: &mut App,
3559) {
3560    match context {
3561        AgentContextHandle::File(file_context) => {
3562            if let Some(project_path) = file_context.project_path(cx) {
3563                workspace.update(cx, |workspace, cx| {
3564                    workspace
3565                        .open_path(project_path, None, true, window, cx)
3566                        .detach_and_log_err(cx);
3567                });
3568            }
3569        }
3570
3571        AgentContextHandle::Directory(directory_context) => {
3572            let entry_id = directory_context.entry_id;
3573            workspace.update(cx, |workspace, cx| {
3574                workspace.project().update(cx, |_project, cx| {
3575                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3576                })
3577            })
3578        }
3579
3580        AgentContextHandle::Symbol(symbol_context) => {
3581            let buffer = symbol_context.buffer.read(cx);
3582            if let Some(project_path) = buffer.project_path(cx) {
3583                let snapshot = buffer.snapshot();
3584                let target_position = symbol_context.range.start.to_point(&snapshot);
3585                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3586                    .detach();
3587            }
3588        }
3589
3590        AgentContextHandle::Selection(selection_context) => {
3591            let buffer = selection_context.buffer.read(cx);
3592            if let Some(project_path) = buffer.project_path(cx) {
3593                let snapshot = buffer.snapshot();
3594                let target_position = selection_context.range.start.to_point(&snapshot);
3595
3596                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3597                    .detach();
3598            }
3599        }
3600
3601        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3602            cx.open_url(&fetched_url_context.url);
3603        }
3604
3605        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3606            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3607                panel.update(cx, |panel, cx| {
3608                    panel.open_thread(thread_context.thread.clone(), window, cx);
3609                });
3610            }
3611        }),
3612
3613        AgentContextHandle::TextThread(text_thread_context) => {
3614            workspace.update(cx, |workspace, cx| {
3615                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3616                    panel.update(cx, |panel, cx| {
3617                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3618                    });
3619                }
3620            })
3621        }
3622
3623        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3624            Box::new(OpenRulesLibrary {
3625                prompt_to_select: Some(rules_context.prompt_id.0),
3626            }),
3627            cx,
3628        ),
3629
3630        AgentContextHandle::Image(_) => {}
3631    }
3632}
3633
3634fn open_editor_at_position(
3635    project_path: project::ProjectPath,
3636    target_position: Point,
3637    workspace: &Entity<Workspace>,
3638    window: &mut Window,
3639    cx: &mut App,
3640) -> Task<()> {
3641    let open_task = workspace.update(cx, |workspace, cx| {
3642        workspace.open_path(project_path, None, true, window, cx)
3643    });
3644    window.spawn(cx, async move |cx| {
3645        if let Some(active_editor) = open_task
3646            .await
3647            .log_err()
3648            .and_then(|item| item.downcast::<Editor>())
3649        {
3650            active_editor
3651                .downgrade()
3652                .update_in(cx, |editor, window, cx| {
3653                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3654                })
3655                .log_err();
3656        }
3657    })
3658}
3659
3660#[cfg(test)]
3661mod tests {
3662    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3663    use editor::{EditorSettings, display_map::CreaseMetadata};
3664    use fs::FakeFs;
3665    use gpui::{AppContext, TestAppContext, VisualTestContext};
3666    use language_model::{
3667        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3668        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3669    };
3670    use project::Project;
3671    use prompt_store::PromptBuilder;
3672    use serde_json::json;
3673    use settings::SettingsStore;
3674    use util::path;
3675    use workspace::CollaboratorId;
3676
3677    use crate::{ContextLoadResult, thread_store};
3678
3679    use super::*;
3680
3681    #[gpui::test]
3682    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3683        init_test_settings(cx);
3684
3685        let project = create_test_project(
3686            cx,
3687            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3688        )
3689        .await;
3690
3691        let (cx, _active_thread, workspace, thread, model) =
3692            setup_test_environment(cx, project.clone()).await;
3693
3694        // Insert user message without any context (empty context vector)
3695        thread.update(cx, |thread, cx| {
3696            thread.insert_user_message(
3697                "What is the best way to learn Rust?",
3698                ContextLoadResult::default(),
3699                None,
3700                vec![],
3701                cx,
3702            );
3703        });
3704
3705        // Stream response to user message
3706        thread.update(cx, |thread, cx| {
3707            let request =
3708                thread.to_completion_request(model.clone(), CompletionIntent::UserPrompt, cx);
3709            thread.stream_completion(request, model, cx.active_window(), cx)
3710        });
3711        // Follow the agent
3712        cx.update(|window, cx| {
3713            workspace.update(cx, |workspace, cx| {
3714                workspace.follow(CollaboratorId::Agent, window, cx);
3715            })
3716        });
3717        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3718
3719        // Cancel the current completion
3720        thread.update(cx, |thread, cx| {
3721            thread.cancel_last_completion(cx.active_window(), cx)
3722        });
3723
3724        cx.executor().run_until_parked();
3725
3726        // No longer following the agent
3727        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3728    }
3729
3730    #[gpui::test]
3731    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3732        init_test_settings(cx);
3733
3734        let project = create_test_project(cx, json!({})).await;
3735
3736        let (cx, active_thread, _, thread, model) =
3737            setup_test_environment(cx, project.clone()).await;
3738        cx.update(|_, cx| {
3739            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3740                registry.set_default_model(
3741                    Some(ConfiguredModel {
3742                        provider: Arc::new(FakeLanguageModelProvider),
3743                        model,
3744                    }),
3745                    cx,
3746                );
3747            });
3748        });
3749
3750        let creases = vec![MessageCrease {
3751            range: 14..22,
3752            metadata: CreaseMetadata {
3753                icon_path: "icon".into(),
3754                label: "foo.txt".into(),
3755            },
3756            context: None,
3757        }];
3758
3759        let message = thread.update(cx, |thread, cx| {
3760            let message_id = thread.insert_user_message(
3761                "Tell me about @foo.txt",
3762                ContextLoadResult::default(),
3763                None,
3764                creases,
3765                cx,
3766            );
3767            thread.message(message_id).cloned().unwrap()
3768        });
3769
3770        active_thread.update_in(cx, |active_thread, window, cx| {
3771            active_thread.start_editing_message(
3772                message.id,
3773                message.segments.as_slice(),
3774                message.creases.as_slice(),
3775                window,
3776                cx,
3777            );
3778            let editor = active_thread
3779                .editing_message
3780                .as_ref()
3781                .unwrap()
3782                .1
3783                .editor
3784                .clone();
3785            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
3786            active_thread.confirm_editing_message(&Default::default(), window, cx);
3787        });
3788        cx.run_until_parked();
3789
3790        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3791        active_thread.update_in(cx, |active_thread, window, cx| {
3792            active_thread.start_editing_message(
3793                message.id,
3794                message.segments.as_slice(),
3795                message.creases.as_slice(),
3796                window,
3797                cx,
3798            );
3799            let editor = active_thread
3800                .editing_message
3801                .as_ref()
3802                .unwrap()
3803                .1
3804                .editor
3805                .clone();
3806            let text = editor.update(cx, |editor, cx| editor.text(cx));
3807            assert_eq!(text, "modified @foo.txt");
3808        });
3809    }
3810
3811    fn init_test_settings(cx: &mut TestAppContext) {
3812        cx.update(|cx| {
3813            let settings_store = SettingsStore::test(cx);
3814            cx.set_global(settings_store);
3815            language::init(cx);
3816            Project::init_settings(cx);
3817            AgentSettings::register(cx);
3818            prompt_store::init(cx);
3819            thread_store::init(cx);
3820            workspace::init_settings(cx);
3821            language_model::init_settings(cx);
3822            ThemeSettings::register(cx);
3823            EditorSettings::register(cx);
3824            ToolRegistry::default_global(cx);
3825        });
3826    }
3827
3828    // Helper to create a test project with test files
3829    async fn create_test_project(
3830        cx: &mut TestAppContext,
3831        files: serde_json::Value,
3832    ) -> Entity<Project> {
3833        let fs = FakeFs::new(cx.executor());
3834        fs.insert_tree(path!("/test"), files).await;
3835        Project::test(fs, [path!("/test").as_ref()], cx).await
3836    }
3837
3838    async fn setup_test_environment(
3839        cx: &mut TestAppContext,
3840        project: Entity<Project>,
3841    ) -> (
3842        &mut VisualTestContext,
3843        Entity<ActiveThread>,
3844        Entity<Workspace>,
3845        Entity<Thread>,
3846        Arc<dyn LanguageModel>,
3847    ) {
3848        let (workspace, cx) =
3849            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
3850
3851        let thread_store = cx
3852            .update(|_, cx| {
3853                ThreadStore::load(
3854                    project.clone(),
3855                    cx.new(|_| ToolWorkingSet::default()),
3856                    None,
3857                    Arc::new(PromptBuilder::new(None).unwrap()),
3858                    cx,
3859                )
3860            })
3861            .await
3862            .unwrap();
3863
3864        let text_thread_store = cx
3865            .update(|_, cx| {
3866                TextThreadStore::new(
3867                    project.clone(),
3868                    Arc::new(PromptBuilder::new(None).unwrap()),
3869                    Default::default(),
3870                    cx,
3871                )
3872            })
3873            .await
3874            .unwrap();
3875
3876        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
3877        let context_store =
3878            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
3879
3880        let model = FakeLanguageModel::default();
3881        let model: Arc<dyn LanguageModel> = Arc::new(model);
3882
3883        let language_registry = LanguageRegistry::new(cx.executor());
3884        let language_registry = Arc::new(language_registry);
3885
3886        let active_thread = cx.update(|window, cx| {
3887            cx.new(|cx| {
3888                ActiveThread::new(
3889                    thread.clone(),
3890                    thread_store.clone(),
3891                    text_thread_store,
3892                    context_store.clone(),
3893                    language_registry.clone(),
3894                    workspace.downgrade(),
3895                    window,
3896                    cx,
3897                )
3898            })
3899        });
3900
3901        (cx, active_thread, workspace, thread, model)
3902    }
3903}