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::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 new_context = self
1568            .context_store
1569            .read(cx)
1570            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1571
1572        let project = self.thread.read(cx).project().clone();
1573        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1574
1575        let git_store = project.read(cx).git_store().clone();
1576        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1577
1578        let load_context_task =
1579            crate::context::load_context(new_context, &project, &prompt_store, cx);
1580        self._load_edited_message_context_task =
1581            Some(cx.spawn_in(window, async move |this, cx| {
1582                let (context, checkpoint) =
1583                    futures::future::join(load_context_task, checkpoint).await;
1584                let _ = this
1585                    .update_in(cx, |this, window, cx| {
1586                        this.thread.update(cx, |thread, cx| {
1587                            thread.edit_message(
1588                                message_id,
1589                                Role::User,
1590                                vec![MessageSegment::Text(edited_text)],
1591                                Some(context.loaded_context),
1592                                checkpoint.ok(),
1593                                cx,
1594                            );
1595                            for message_id in this.messages_after(message_id) {
1596                                thread.delete_message(*message_id, cx);
1597                            }
1598                        });
1599
1600                        this.thread.update(cx, |thread, cx| {
1601                            thread.advance_prompt_id();
1602                            thread.send_to_model(
1603                                model.model,
1604                                CompletionIntent::UserPrompt,
1605                                Some(window.window_handle()),
1606                                cx,
1607                            );
1608                        });
1609                        this._load_edited_message_context_task = None;
1610                        cx.notify();
1611                    })
1612                    .log_err();
1613            }));
1614    }
1615
1616    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1617        self.messages
1618            .iter()
1619            .position(|id| *id == message_id)
1620            .map(|index| &self.messages[index + 1..])
1621            .unwrap_or(&[])
1622    }
1623
1624    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1625        self.cancel_editing_message(&menu::Cancel, window, cx);
1626    }
1627
1628    fn handle_regenerate_click(
1629        &mut self,
1630        _: &ClickEvent,
1631        window: &mut Window,
1632        cx: &mut Context<Self>,
1633    ) {
1634        self.confirm_editing_message(&menu::Confirm, window, cx);
1635    }
1636
1637    fn handle_feedback_click(
1638        &mut self,
1639        message_id: MessageId,
1640        feedback: ThreadFeedback,
1641        window: &mut Window,
1642        cx: &mut Context<Self>,
1643    ) {
1644        let report = self.thread.update(cx, |thread, cx| {
1645            thread.report_message_feedback(message_id, feedback, cx)
1646        });
1647
1648        cx.spawn(async move |this, cx| {
1649            report.await?;
1650            this.update(cx, |_this, cx| cx.notify())
1651        })
1652        .detach_and_log_err(cx);
1653
1654        match feedback {
1655            ThreadFeedback::Positive => {
1656                self.open_feedback_editors.remove(&message_id);
1657            }
1658            ThreadFeedback::Negative => {
1659                self.handle_show_feedback_comments(message_id, window, cx);
1660            }
1661        }
1662    }
1663
1664    fn handle_show_feedback_comments(
1665        &mut self,
1666        message_id: MessageId,
1667        window: &mut Window,
1668        cx: &mut Context<Self>,
1669    ) {
1670        let buffer = cx.new(|cx| {
1671            let empty_string = String::new();
1672            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1673        });
1674
1675        let editor = cx.new(|cx| {
1676            let mut editor = Editor::new(
1677                editor::EditorMode::AutoHeight { max_lines: 4 },
1678                buffer,
1679                None,
1680                window,
1681                cx,
1682            );
1683            editor.set_placeholder_text(
1684                "What went wrong? Share your feedback so we can improve.",
1685                cx,
1686            );
1687            editor
1688        });
1689
1690        editor.read(cx).focus_handle(cx).focus(window);
1691        self.open_feedback_editors.insert(message_id, editor);
1692        cx.notify();
1693    }
1694
1695    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1696        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1697            return;
1698        };
1699
1700        let report_task = self.thread.update(cx, |thread, cx| {
1701            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1702        });
1703
1704        let comments = editor.read(cx).text(cx);
1705        if !comments.is_empty() {
1706            let thread_id = self.thread.read(cx).id().clone();
1707            let comments_value = String::from(comments.as_str());
1708
1709            let message_content = self
1710                .thread
1711                .read(cx)
1712                .message(message_id)
1713                .map(|msg| msg.to_string())
1714                .unwrap_or_default();
1715
1716            telemetry::event!(
1717                "Assistant Thread Feedback Comments",
1718                thread_id,
1719                message_id = message_id.0,
1720                message_content,
1721                comments = comments_value
1722            );
1723
1724            self.open_feedback_editors.remove(&message_id);
1725
1726            cx.spawn(async move |this, cx| {
1727                report_task.await?;
1728                this.update(cx, |_this, cx| cx.notify())
1729            })
1730            .detach_and_log_err(cx);
1731        }
1732    }
1733
1734    fn render_edit_message_editor(
1735        &self,
1736        state: &EditingMessageState,
1737        _window: &mut Window,
1738        cx: &Context<Self>,
1739    ) -> impl IntoElement {
1740        let settings = ThemeSettings::get_global(cx);
1741        let font_size = TextSize::Small
1742            .rems(cx)
1743            .to_pixels(settings.agent_font_size(cx));
1744        let line_height = font_size * 1.75;
1745
1746        let colors = cx.theme().colors();
1747
1748        let text_style = TextStyle {
1749            color: colors.text,
1750            font_family: settings.buffer_font.family.clone(),
1751            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1752            font_features: settings.buffer_font.features.clone(),
1753            font_size: font_size.into(),
1754            line_height: line_height.into(),
1755            ..Default::default()
1756        };
1757
1758        v_flex()
1759            .key_context("EditMessageEditor")
1760            .on_action(cx.listener(Self::toggle_context_picker))
1761            .on_action(cx.listener(Self::remove_all_context))
1762            .on_action(cx.listener(Self::move_up))
1763            .on_action(cx.listener(Self::cancel_editing_message))
1764            .on_action(cx.listener(Self::confirm_editing_message))
1765            .capture_action(cx.listener(Self::paste))
1766            .min_h_6()
1767            .w_full()
1768            .flex_grow()
1769            .gap_2()
1770            .child(state.context_strip.clone())
1771            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1772                &state.editor,
1773                EditorStyle {
1774                    background: colors.editor_background,
1775                    local_player: cx.theme().players().local(),
1776                    text: text_style,
1777                    syntax: cx.theme().syntax().clone(),
1778                    ..Default::default()
1779                },
1780            )))
1781    }
1782
1783    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1784        let message_id = self.messages[ix];
1785        let Some(message) = self.thread.read(cx).message(message_id) else {
1786            return Empty.into_any();
1787        };
1788
1789        if message.is_hidden {
1790            return Empty.into_any();
1791        }
1792
1793        let message_creases = message.creases.clone();
1794
1795        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1796            return Empty.into_any();
1797        };
1798
1799        let workspace = self.workspace.clone();
1800        let thread = self.thread.read(cx);
1801
1802        // Get all the data we need from thread before we start using it in closures
1803        let checkpoint = thread.checkpoint_for_message(message_id);
1804        let added_context = thread
1805            .context_for_message(message_id)
1806            .map(|context| AddedContext::new_attached(context, cx))
1807            .collect::<Vec<_>>();
1808
1809        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1810        let has_tool_uses = !tool_uses.is_empty();
1811        let is_generating = thread.is_generating();
1812        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1813
1814        let is_first_message = ix == 0;
1815        let is_last_message = ix == self.messages.len() - 1;
1816
1817        let loading_dots = (is_generating_stale && is_last_message)
1818            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1819
1820        let editing_message_state = self
1821            .editing_message
1822            .as_ref()
1823            .filter(|(id, _)| *id == message_id)
1824            .map(|(_, state)| state);
1825
1826        let colors = cx.theme().colors();
1827        let editor_bg_color = colors.editor_background;
1828
1829        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1830            .icon_size(IconSize::XSmall)
1831            .icon_color(Color::Ignored)
1832            .tooltip(Tooltip::text("Open Thread as Markdown"))
1833            .on_click({
1834                let thread = self.thread.clone();
1835                let workspace = self.workspace.clone();
1836                move |_, window, cx| {
1837                    if let Some(workspace) = workspace.upgrade() {
1838                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1839                            .detach_and_log_err(cx);
1840                    }
1841                }
1842            });
1843
1844        // For all items that should be aligned with the LLM's response.
1845        const RESPONSE_PADDING_X: Pixels = px(19.);
1846
1847        let show_feedback = thread.is_turn_end(ix);
1848
1849        let feedback_container = h_flex()
1850            .group("feedback_container")
1851            .mt_1()
1852            .py_2()
1853            .px(RESPONSE_PADDING_X)
1854            .mr_1()
1855            .opacity(0.4)
1856            .hover(|style| style.opacity(1.))
1857            .gap_1p5()
1858            .flex_wrap()
1859            .justify_end();
1860        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1861            Some(feedback) => feedback_container
1862                .child(
1863                    div().visible_on_hover("feedback_container").child(
1864                        Label::new(match feedback {
1865                            ThreadFeedback::Positive => "Thanks for your feedback!",
1866                            ThreadFeedback::Negative => {
1867                                "We appreciate your feedback and will use it to improve."
1868                            }
1869                        })
1870                    .color(Color::Muted)
1871                    .size(LabelSize::XSmall)
1872                    .truncate())
1873                )
1874                .child(
1875                    h_flex()
1876                        .child(
1877                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1878                                .icon_size(IconSize::XSmall)
1879                                .icon_color(match feedback {
1880                                    ThreadFeedback::Positive => Color::Accent,
1881                                    ThreadFeedback::Negative => Color::Ignored,
1882                                })
1883                                .tooltip(Tooltip::text("Helpful Response"))
1884                                .on_click(cx.listener(move |this, _, window, cx| {
1885                                    this.handle_feedback_click(
1886                                        message_id,
1887                                        ThreadFeedback::Positive,
1888                                        window,
1889                                        cx,
1890                                    );
1891                                })),
1892                        )
1893                        .child(
1894                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1895                                .icon_size(IconSize::XSmall)
1896                                .icon_color(match feedback {
1897                                    ThreadFeedback::Positive => Color::Ignored,
1898                                    ThreadFeedback::Negative => Color::Accent,
1899                                })
1900                                .tooltip(Tooltip::text("Not Helpful"))
1901                                .on_click(cx.listener(move |this, _, window, cx| {
1902                                    this.handle_feedback_click(
1903                                        message_id,
1904                                        ThreadFeedback::Negative,
1905                                        window,
1906                                        cx,
1907                                    );
1908                                })),
1909                        )
1910                        .child(open_as_markdown),
1911                )
1912                .into_any_element(),
1913            None if AgentSettings::get_global(cx).enable_feedback =>
1914                feedback_container
1915                .child(
1916                    div().visible_on_hover("feedback_container").child(
1917                        Label::new(
1918                            "Rating the thread sends all of your current conversation to the Zed team.",
1919                        )
1920                        .color(Color::Muted)
1921                    .size(LabelSize::XSmall)
1922                    .truncate())
1923                )
1924                .child(
1925                    h_flex()
1926                        .child(
1927                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1928                                .icon_size(IconSize::XSmall)
1929                                .icon_color(Color::Ignored)
1930                                .tooltip(Tooltip::text("Helpful Response"))
1931                                .on_click(cx.listener(move |this, _, window, cx| {
1932                                    this.handle_feedback_click(
1933                                        message_id,
1934                                        ThreadFeedback::Positive,
1935                                        window,
1936                                        cx,
1937                                    );
1938                                })),
1939                        )
1940                        .child(
1941                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1942                                .icon_size(IconSize::XSmall)
1943                                .icon_color(Color::Ignored)
1944                                .tooltip(Tooltip::text("Not Helpful"))
1945                                .on_click(cx.listener(move |this, _, window, cx| {
1946                                    this.handle_feedback_click(
1947                                        message_id,
1948                                        ThreadFeedback::Negative,
1949                                        window,
1950                                        cx,
1951                                    );
1952                                })),
1953                        )
1954                        .child(open_as_markdown),
1955                )
1956                .into_any_element(),
1957            None => feedback_container
1958                .child(h_flex().child(open_as_markdown))
1959                .into_any_element(),
1960        };
1961
1962        let message_is_empty = message.should_display_content();
1963        let has_content = !message_is_empty || !added_context.is_empty();
1964
1965        let message_content = has_content.then(|| {
1966            if let Some(state) = editing_message_state.as_ref() {
1967                self.render_edit_message_editor(state, window, cx)
1968                    .into_any_element()
1969            } else {
1970                v_flex()
1971                    .w_full()
1972                    .gap_1()
1973                    .when(!added_context.is_empty(), |parent| {
1974                        parent.child(h_flex().flex_wrap().gap_1().children(
1975                            added_context.into_iter().map(|added_context| {
1976                                let context = added_context.handle.clone();
1977                                ContextPill::added(added_context, false, false, None).on_click(
1978                                    Rc::new(cx.listener({
1979                                        let workspace = workspace.clone();
1980                                        move |_, _, window, cx| {
1981                                            if let Some(workspace) = workspace.upgrade() {
1982                                                open_context(&context, workspace, window, cx);
1983                                                cx.notify();
1984                                            }
1985                                        }
1986                                    })),
1987                                )
1988                            }),
1989                        ))
1990                    })
1991                    .when(!message_is_empty, |parent| {
1992                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
1993                            message_id,
1994                            rendered_message,
1995                            has_tool_uses,
1996                            workspace.clone(),
1997                            window,
1998                            cx,
1999                        )))
2000                    })
2001                    .into_any_element()
2002            }
2003        });
2004
2005        let styled_message = match message.role {
2006            Role::User => v_flex()
2007                .id(("message-container", ix))
2008                .pt_2()
2009                .pl_2()
2010                .pr_2p5()
2011                .pb_4()
2012                .child(
2013                    v_flex()
2014                        .id(("user-message", ix))
2015                        .bg(editor_bg_color)
2016                        .rounded_lg()
2017                        .shadow_md()
2018                        .border_1()
2019                        .border_color(colors.border)
2020                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2021                        .child(
2022                            v_flex()
2023                                .p_2p5()
2024                                .gap_1()
2025                                .children(message_content)
2026                                .when_some(editing_message_state, |this, state| {
2027                                    let focus_handle = state.editor.focus_handle(cx).clone();
2028
2029                                    this.child(
2030                                        h_flex()
2031                                            .w_full()
2032                                            .gap_1()
2033                                            .justify_between()
2034                                            .flex_wrap()
2035                                            .child(
2036                                                h_flex()
2037                                                    .gap_1p5()
2038                                                    .child(
2039                                                        div()
2040                                                            .opacity(0.8)
2041                                                            .child(
2042                                                                Icon::new(IconName::Warning)
2043                                                                    .size(IconSize::Indicator)
2044                                                                    .color(Color::Warning)
2045                                                            ),
2046                                                    )
2047                                                    .child(
2048                                                        Label::new("Editing will restart the thread from this point.")
2049                                                            .color(Color::Muted)
2050                                                            .size(LabelSize::XSmall),
2051                                                    ),
2052                                            )
2053                                            .child(
2054                                                h_flex()
2055                                                    .gap_0p5()
2056                                                    .child(
2057                                                        IconButton::new(
2058                                                            "cancel-edit-message",
2059                                                            IconName::Close,
2060                                                        )
2061                                                        .shape(ui::IconButtonShape::Square)
2062                                                        .icon_color(Color::Error)
2063                                                        .icon_size(IconSize::Small)
2064                                                        .tooltip({
2065                                                            let focus_handle = focus_handle.clone();
2066                                                            move |window, cx| {
2067                                                                Tooltip::for_action_in(
2068                                                                    "Cancel Edit",
2069                                                                    &menu::Cancel,
2070                                                                    &focus_handle,
2071                                                                    window,
2072                                                                    cx,
2073                                                                )
2074                                                            }
2075                                                        })
2076                                                        .on_click(cx.listener(Self::handle_cancel_click)),
2077                                                    )
2078                                                    .child(
2079                                                        IconButton::new(
2080                                                            "confirm-edit-message",
2081                                                            IconName::Return,
2082                                                        )
2083                                                        .disabled(state.editor.read(cx).is_empty(cx))
2084                                                        .shape(ui::IconButtonShape::Square)
2085                                                        .icon_color(Color::Muted)
2086                                                        .icon_size(IconSize::Small)
2087                                                        .tooltip({
2088                                                            let focus_handle = focus_handle.clone();
2089                                                            move |window, cx| {
2090                                                                Tooltip::for_action_in(
2091                                                                    "Regenerate",
2092                                                                    &menu::Confirm,
2093                                                                    &focus_handle,
2094                                                                    window,
2095                                                                    cx,
2096                                                                )
2097                                                            }
2098                                                        })
2099                                                        .on_click(
2100                                                            cx.listener(Self::handle_regenerate_click),
2101                                                        ),
2102                                                    ),
2103                                            )
2104                                    )
2105                                }),
2106                        )
2107                        .on_click(cx.listener({
2108                            let message_segments = message.segments.clone();
2109                            move |this, _, window, cx| {
2110                                this.start_editing_message(
2111                                    message_id,
2112                                    &message_segments,
2113                                    &message_creases,
2114                                    window,
2115                                    cx,
2116                                );
2117                            }
2118                        })),
2119                ),
2120            Role::Assistant => v_flex()
2121                .id(("message-container", ix))
2122                .px(RESPONSE_PADDING_X)
2123                .gap_2()
2124                .children(message_content)
2125                .when(has_tool_uses, |parent| {
2126                    parent.children(tool_uses.into_iter().map(|tool_use| {
2127                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2128                    }))
2129                }),
2130            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2131                v_flex()
2132                    .bg(colors.editor_background)
2133                    .rounded_sm()
2134                    .child(div().p_4().children(message_content)),
2135            ),
2136        };
2137
2138        let after_editing_message = self
2139            .editing_message
2140            .as_ref()
2141            .map_or(false, |(editing_message_id, _)| {
2142                message_id > *editing_message_id
2143            });
2144
2145        let panel_background = cx.theme().colors().panel_background;
2146
2147        let backdrop = div()
2148            .id("backdrop")
2149            .stop_mouse_events_except_scroll()
2150            .absolute()
2151            .inset_0()
2152            .size_full()
2153            .bg(panel_background)
2154            .opacity(0.8)
2155            .on_click(cx.listener(Self::handle_cancel_click));
2156
2157        v_flex()
2158            .w_full()
2159            .map(|parent| {
2160                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2161                    let mut is_pending = false;
2162                    let mut error = None;
2163                    if let Some(last_restore_checkpoint) =
2164                        self.thread.read(cx).last_restore_checkpoint()
2165                    {
2166                        if last_restore_checkpoint.message_id() == message_id {
2167                            match last_restore_checkpoint {
2168                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2169                                LastRestoreCheckpoint::Error { error: err, .. } => {
2170                                    error = Some(err.clone());
2171                                }
2172                            }
2173                        }
2174                    }
2175
2176                    let restore_checkpoint_button =
2177                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2178                            .icon(if error.is_some() {
2179                                IconName::XCircle
2180                            } else {
2181                                IconName::Undo
2182                            })
2183                            .icon_size(IconSize::XSmall)
2184                            .icon_position(IconPosition::Start)
2185                            .icon_color(if error.is_some() {
2186                                Some(Color::Error)
2187                            } else {
2188                                None
2189                            })
2190                            .label_size(LabelSize::XSmall)
2191                            .disabled(is_pending)
2192                            .on_click(cx.listener(move |this, _, _window, cx| {
2193                                this.thread.update(cx, |thread, cx| {
2194                                    thread
2195                                        .restore_checkpoint(checkpoint.clone(), cx)
2196                                        .detach_and_log_err(cx);
2197                                });
2198                            }));
2199
2200                    let restore_checkpoint_button = if is_pending {
2201                        restore_checkpoint_button
2202                            .with_animation(
2203                                ("pulsating-restore-checkpoint-button", ix),
2204                                Animation::new(Duration::from_secs(2))
2205                                    .repeat()
2206                                    .with_easing(pulsating_between(0.6, 1.)),
2207                                |label, delta| label.alpha(delta),
2208                            )
2209                            .into_any_element()
2210                    } else if let Some(error) = error {
2211                        restore_checkpoint_button
2212                            .tooltip(Tooltip::text(error.to_string()))
2213                            .into_any_element()
2214                    } else {
2215                        restore_checkpoint_button.into_any_element()
2216                    };
2217
2218                    parent.child(
2219                        h_flex()
2220                            .pt_2p5()
2221                            .px_2p5()
2222                            .w_full()
2223                            .gap_1()
2224                            .child(ui::Divider::horizontal())
2225                            .child(restore_checkpoint_button)
2226                            .child(ui::Divider::horizontal()),
2227                    )
2228                } else {
2229                    parent
2230                }
2231            })
2232            .when(is_first_message, |parent| {
2233                parent.child(self.render_rules_item(cx))
2234            })
2235            .child(styled_message)
2236            .when(is_generating && is_last_message, |this| {
2237                this.child(
2238                    h_flex()
2239                        .h_8()
2240                        .mt_2()
2241                        .mb_4()
2242                        .ml_4()
2243                        .py_1p5()
2244                        .when_some(loading_dots, |this, loading_dots| this.child(loading_dots)),
2245                )
2246            })
2247            .when(show_feedback, move |parent| {
2248                parent.child(feedback_items).when_some(
2249                    self.open_feedback_editors.get(&message_id),
2250                    move |parent, feedback_editor| {
2251                        let focus_handle = feedback_editor.focus_handle(cx);
2252                        parent.child(
2253                            v_flex()
2254                                .key_context("AgentFeedbackMessageEditor")
2255                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2256                                    this.open_feedback_editors.remove(&message_id);
2257                                    cx.notify();
2258                                }))
2259                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2260                                    this.submit_feedback_message(message_id, cx);
2261                                    cx.notify();
2262                                }))
2263                                .on_action(cx.listener(Self::confirm_editing_message))
2264                                .mb_2()
2265                                .mx_4()
2266                                .p_2()
2267                                .rounded_md()
2268                                .border_1()
2269                                .border_color(cx.theme().colors().border)
2270                                .bg(cx.theme().colors().editor_background)
2271                                .child(feedback_editor.clone())
2272                                .child(
2273                                    h_flex()
2274                                        .gap_1()
2275                                        .justify_end()
2276                                        .child(
2277                                            Button::new("dismiss-feedback-message", "Cancel")
2278                                                .label_size(LabelSize::Small)
2279                                                .key_binding(
2280                                                    KeyBinding::for_action_in(
2281                                                        &menu::Cancel,
2282                                                        &focus_handle,
2283                                                        window,
2284                                                        cx,
2285                                                    )
2286                                                    .map(|kb| kb.size(rems_from_px(10.))),
2287                                                )
2288                                                .on_click(cx.listener(
2289                                                    move |this, _, _window, cx| {
2290                                                        this.open_feedback_editors
2291                                                            .remove(&message_id);
2292                                                        cx.notify();
2293                                                    },
2294                                                )),
2295                                        )
2296                                        .child(
2297                                            Button::new(
2298                                                "submit-feedback-message",
2299                                                "Share Feedback",
2300                                            )
2301                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2302                                            .label_size(LabelSize::Small)
2303                                            .key_binding(
2304                                                KeyBinding::for_action_in(
2305                                                    &menu::Confirm,
2306                                                    &focus_handle,
2307                                                    window,
2308                                                    cx,
2309                                                )
2310                                                .map(|kb| kb.size(rems_from_px(10.))),
2311                                            )
2312                                            .on_click(
2313                                                cx.listener(move |this, _, _window, cx| {
2314                                                    this.submit_feedback_message(message_id, cx);
2315                                                    cx.notify()
2316                                                }),
2317                                            ),
2318                                        ),
2319                                ),
2320                        )
2321                    },
2322                )
2323            })
2324            .when(after_editing_message, |parent| {
2325                // Backdrop to dim out the whole thread below the editing user message
2326                parent.relative().child(backdrop)
2327            })
2328            .into_any()
2329    }
2330
2331    fn render_message_content(
2332        &self,
2333        message_id: MessageId,
2334        rendered_message: &RenderedMessage,
2335        has_tool_uses: bool,
2336        workspace: WeakEntity<Workspace>,
2337        window: &Window,
2338        cx: &Context<Self>,
2339    ) -> impl IntoElement {
2340        let is_last_message = self.messages.last() == Some(&message_id);
2341        let is_generating = self.thread.read(cx).is_generating();
2342        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2343            rendered_message
2344                .segments
2345                .iter()
2346                .enumerate()
2347                .next_back()
2348                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2349                .map(|(index, _)| index)
2350        } else {
2351            None
2352        };
2353
2354        let message_role = self
2355            .thread
2356            .read(cx)
2357            .message(message_id)
2358            .map(|m| m.role)
2359            .unwrap_or(Role::User);
2360
2361        let is_assistant_message = message_role == Role::Assistant;
2362        let is_user_message = message_role == Role::User;
2363
2364        v_flex()
2365            .text_ui(cx)
2366            .gap_2()
2367            .when(is_user_message, |this| this.text_xs())
2368            .children(
2369                rendered_message.segments.iter().enumerate().map(
2370                    |(index, segment)| match segment {
2371                        RenderedMessageSegment::Thinking {
2372                            content,
2373                            scroll_handle,
2374                        } => self
2375                            .render_message_thinking_segment(
2376                                message_id,
2377                                index,
2378                                content.clone(),
2379                                &scroll_handle,
2380                                Some(index) == pending_thinking_segment_index,
2381                                window,
2382                                cx,
2383                            )
2384                            .into_any_element(),
2385                        RenderedMessageSegment::Text(markdown) => {
2386                            let markdown_element = MarkdownElement::new(
2387                                markdown.clone(),
2388                                if is_user_message {
2389                                    let mut style = default_markdown_style(window, cx);
2390                                    let mut text_style = window.text_style();
2391                                    let theme_settings = ThemeSettings::get_global(cx);
2392
2393                                    let buffer_font = theme_settings.buffer_font.family.clone();
2394                                    let buffer_font_size = TextSize::Small.rems(cx);
2395
2396                                    text_style.refine(&TextStyleRefinement {
2397                                        font_family: Some(buffer_font),
2398                                        font_size: Some(buffer_font_size.into()),
2399                                        ..Default::default()
2400                                    });
2401
2402                                    style.base_text_style = text_style;
2403                                    style
2404                                } else {
2405                                    default_markdown_style(window, cx)
2406                                },
2407                            );
2408
2409                            let markdown_element = if is_assistant_message {
2410                                markdown_element.code_block_renderer(
2411                                    markdown::CodeBlockRenderer::Custom {
2412                                        render: Arc::new({
2413                                            let workspace = workspace.clone();
2414                                            let active_thread = cx.entity();
2415                                            move |kind,
2416                                                  parsed_markdown,
2417                                                  range,
2418                                                  metadata,
2419                                                  window,
2420                                                  cx| {
2421                                                render_markdown_code_block(
2422                                                    message_id,
2423                                                    range.start,
2424                                                    kind,
2425                                                    parsed_markdown,
2426                                                    metadata,
2427                                                    active_thread.clone(),
2428                                                    workspace.clone(),
2429                                                    window,
2430                                                    cx,
2431                                                )
2432                                            }
2433                                        }),
2434                                        transform: Some(Arc::new({
2435                                            let active_thread = cx.entity();
2436
2437                                            move |element, range, _, _, cx| {
2438                                                let is_expanded = active_thread
2439                                                    .read(cx)
2440                                                    .is_codeblock_expanded(message_id, range.start);
2441
2442                                                if is_expanded {
2443                                                    return element;
2444                                                }
2445
2446                                                element
2447                                            }
2448                                        })),
2449                                    },
2450                                )
2451                            } else {
2452                                markdown_element.code_block_renderer(
2453                                    markdown::CodeBlockRenderer::Default {
2454                                        copy_button: false,
2455                                        copy_button_on_hover: false,
2456                                        border: true,
2457                                    },
2458                                )
2459                            };
2460
2461                            div()
2462                                .child(markdown_element.on_url_click({
2463                                    let workspace = self.workspace.clone();
2464                                    move |text, window, cx| {
2465                                        open_markdown_link(text, workspace.clone(), window, cx);
2466                                    }
2467                                }))
2468                                .into_any_element()
2469                        }
2470                    },
2471                ),
2472            )
2473    }
2474
2475    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2476        cx.theme().colors().border.opacity(0.5)
2477    }
2478
2479    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2480        cx.theme()
2481            .colors()
2482            .element_background
2483            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2484    }
2485
2486    fn render_message_thinking_segment(
2487        &self,
2488        message_id: MessageId,
2489        ix: usize,
2490        markdown: Entity<Markdown>,
2491        scroll_handle: &ScrollHandle,
2492        pending: bool,
2493        window: &Window,
2494        cx: &Context<Self>,
2495    ) -> impl IntoElement {
2496        let is_open = self
2497            .expanded_thinking_segments
2498            .get(&(message_id, ix))
2499            .copied()
2500            .unwrap_or_default();
2501
2502        let editor_bg = cx.theme().colors().panel_background;
2503
2504        div().map(|this| {
2505            if pending {
2506                this.v_flex()
2507                    .mt_neg_2()
2508                    .mb_1p5()
2509                    .child(
2510                        h_flex()
2511                            .group("disclosure-header")
2512                            .justify_between()
2513                            .child(
2514                                h_flex()
2515                                    .gap_1p5()
2516                                    .child(
2517                                        Icon::new(IconName::LightBulb)
2518                                            .size(IconSize::XSmall)
2519                                            .color(Color::Muted),
2520                                    )
2521                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2522                            )
2523                            .child(
2524                                h_flex()
2525                                    .gap_1()
2526                                    .child(
2527                                        div().visible_on_hover("disclosure-header").child(
2528                                            Disclosure::new("thinking-disclosure", is_open)
2529                                                .opened_icon(IconName::ChevronUp)
2530                                                .closed_icon(IconName::ChevronDown)
2531                                                .on_click(cx.listener({
2532                                                    move |this, _event, _window, _cx| {
2533                                                        let is_open = this
2534                                                            .expanded_thinking_segments
2535                                                            .entry((message_id, ix))
2536                                                            .or_insert(false);
2537
2538                                                        *is_open = !*is_open;
2539                                                    }
2540                                                })),
2541                                        ),
2542                                    )
2543                                    .child({
2544                                        Icon::new(IconName::ArrowCircle)
2545                                            .color(Color::Accent)
2546                                            .size(IconSize::Small)
2547                                            .with_animation(
2548                                                "arrow-circle",
2549                                                Animation::new(Duration::from_secs(2)).repeat(),
2550                                                |icon, delta| {
2551                                                    icon.transform(Transformation::rotate(
2552                                                        percentage(delta),
2553                                                    ))
2554                                                },
2555                                            )
2556                                    }),
2557                            ),
2558                    )
2559                    .when(!is_open, |this| {
2560                        let gradient_overlay = div()
2561                            .rounded_b_lg()
2562                            .h_full()
2563                            .absolute()
2564                            .w_full()
2565                            .bottom_0()
2566                            .left_0()
2567                            .bg(linear_gradient(
2568                                180.,
2569                                linear_color_stop(editor_bg, 1.),
2570                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2571                            ));
2572
2573                        this.child(
2574                            div()
2575                                .relative()
2576                                .bg(editor_bg)
2577                                .rounded_b_lg()
2578                                .mt_2()
2579                                .pl_4()
2580                                .child(
2581                                    div()
2582                                        .id(("thinking-content", ix))
2583                                        .max_h_20()
2584                                        .track_scroll(scroll_handle)
2585                                        .text_ui_sm(cx)
2586                                        .overflow_hidden()
2587                                        .child(
2588                                            MarkdownElement::new(
2589                                                markdown.clone(),
2590                                                default_markdown_style(window, cx),
2591                                            )
2592                                            .on_url_click({
2593                                                let workspace = self.workspace.clone();
2594                                                move |text, window, cx| {
2595                                                    open_markdown_link(
2596                                                        text,
2597                                                        workspace.clone(),
2598                                                        window,
2599                                                        cx,
2600                                                    );
2601                                                }
2602                                            }),
2603                                        ),
2604                                )
2605                                .child(gradient_overlay),
2606                        )
2607                    })
2608                    .when(is_open, |this| {
2609                        this.child(
2610                            div()
2611                                .id(("thinking-content", ix))
2612                                .h_full()
2613                                .bg(editor_bg)
2614                                .text_ui_sm(cx)
2615                                .child(
2616                                    MarkdownElement::new(
2617                                        markdown.clone(),
2618                                        default_markdown_style(window, cx),
2619                                    )
2620                                    .on_url_click({
2621                                        let workspace = self.workspace.clone();
2622                                        move |text, window, cx| {
2623                                            open_markdown_link(text, workspace.clone(), window, cx);
2624                                        }
2625                                    }),
2626                                ),
2627                        )
2628                    })
2629            } else {
2630                this.v_flex()
2631                    .mt_neg_2()
2632                    .child(
2633                        h_flex()
2634                            .group("disclosure-header")
2635                            .pr_1()
2636                            .justify_between()
2637                            .opacity(0.8)
2638                            .hover(|style| style.opacity(1.))
2639                            .child(
2640                                h_flex()
2641                                    .gap_1p5()
2642                                    .child(
2643                                        Icon::new(IconName::LightBulb)
2644                                            .size(IconSize::XSmall)
2645                                            .color(Color::Muted),
2646                                    )
2647                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2648                            )
2649                            .child(
2650                                div().visible_on_hover("disclosure-header").child(
2651                                    Disclosure::new("thinking-disclosure", is_open)
2652                                        .opened_icon(IconName::ChevronUp)
2653                                        .closed_icon(IconName::ChevronDown)
2654                                        .on_click(cx.listener({
2655                                            move |this, _event, _window, _cx| {
2656                                                let is_open = this
2657                                                    .expanded_thinking_segments
2658                                                    .entry((message_id, ix))
2659                                                    .or_insert(false);
2660
2661                                                *is_open = !*is_open;
2662                                            }
2663                                        })),
2664                                ),
2665                            ),
2666                    )
2667                    .child(
2668                        div()
2669                            .id(("thinking-content", ix))
2670                            .relative()
2671                            .mt_1p5()
2672                            .ml_1p5()
2673                            .pl_2p5()
2674                            .border_l_1()
2675                            .border_color(cx.theme().colors().border_variant)
2676                            .text_ui_sm(cx)
2677                            .when(is_open, |this| {
2678                                this.child(
2679                                    MarkdownElement::new(
2680                                        markdown.clone(),
2681                                        default_markdown_style(window, cx),
2682                                    )
2683                                    .on_url_click({
2684                                        let workspace = self.workspace.clone();
2685                                        move |text, window, cx| {
2686                                            open_markdown_link(text, workspace.clone(), window, cx);
2687                                        }
2688                                    }),
2689                                )
2690                            }),
2691                    )
2692            }
2693        })
2694    }
2695
2696    fn render_tool_use(
2697        &self,
2698        tool_use: ToolUse,
2699        window: &mut Window,
2700        workspace: WeakEntity<Workspace>,
2701        cx: &mut Context<Self>,
2702    ) -> impl IntoElement + use<> {
2703        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2704            return card.render(&tool_use.status, window, workspace, cx);
2705        }
2706
2707        let is_open = self
2708            .expanded_tool_uses
2709            .get(&tool_use.id)
2710            .copied()
2711            .unwrap_or_default();
2712
2713        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2714
2715        let fs = self
2716            .workspace
2717            .upgrade()
2718            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2719        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2720        let needs_confirmation_tools = tool_use.needs_confirmation;
2721
2722        let status_icons = div().child(match &tool_use.status {
2723            ToolUseStatus::NeedsConfirmation => {
2724                let icon = Icon::new(IconName::Warning)
2725                    .color(Color::Warning)
2726                    .size(IconSize::Small);
2727                icon.into_any_element()
2728            }
2729            ToolUseStatus::Pending
2730            | ToolUseStatus::InputStillStreaming
2731            | ToolUseStatus::Running => {
2732                let icon = Icon::new(IconName::ArrowCircle)
2733                    .color(Color::Accent)
2734                    .size(IconSize::Small);
2735                icon.with_animation(
2736                    "arrow-circle",
2737                    Animation::new(Duration::from_secs(2)).repeat(),
2738                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2739                )
2740                .into_any_element()
2741            }
2742            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2743            ToolUseStatus::Error(_) => {
2744                let icon = Icon::new(IconName::Close)
2745                    .color(Color::Error)
2746                    .size(IconSize::Small);
2747                icon.into_any_element()
2748            }
2749        });
2750
2751        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2752        let results_content_container = || v_flex().p_2().gap_0p5();
2753
2754        let results_content = v_flex()
2755            .gap_1()
2756            .child(
2757                results_content_container()
2758                    .child(
2759                        Label::new("Input")
2760                            .size(LabelSize::XSmall)
2761                            .color(Color::Muted)
2762                            .buffer_font(cx),
2763                    )
2764                    .child(
2765                        div()
2766                            .w_full()
2767                            .text_ui_sm(cx)
2768                            .children(rendered_tool_use.as_ref().map(|rendered| {
2769                                MarkdownElement::new(
2770                                    rendered.input.clone(),
2771                                    tool_use_markdown_style(window, cx),
2772                                )
2773                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2774                                    copy_button: false,
2775                                    copy_button_on_hover: false,
2776                                    border: false,
2777                                })
2778                                .on_url_click({
2779                                    let workspace = self.workspace.clone();
2780                                    move |text, window, cx| {
2781                                        open_markdown_link(text, workspace.clone(), window, cx);
2782                                    }
2783                                })
2784                            })),
2785                    ),
2786            )
2787            .map(|container| match tool_use.status {
2788                ToolUseStatus::Finished(_) => container.child(
2789                    results_content_container()
2790                        .border_t_1()
2791                        .border_color(self.tool_card_border_color(cx))
2792                        .child(
2793                            Label::new("Result")
2794                                .size(LabelSize::XSmall)
2795                                .color(Color::Muted)
2796                                .buffer_font(cx),
2797                        )
2798                        .child(div().w_full().text_ui_sm(cx).children(
2799                            rendered_tool_use.as_ref().map(|rendered| {
2800                                MarkdownElement::new(
2801                                    rendered.output.clone(),
2802                                    tool_use_markdown_style(window, cx),
2803                                )
2804                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2805                                    copy_button: false,
2806                                    copy_button_on_hover: false,
2807                                    border: false,
2808                                })
2809                                .on_url_click({
2810                                    let workspace = self.workspace.clone();
2811                                    move |text, window, cx| {
2812                                        open_markdown_link(text, workspace.clone(), window, cx);
2813                                    }
2814                                })
2815                                .into_any_element()
2816                            }),
2817                        )),
2818                ),
2819                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2820                    results_content_container()
2821                        .border_t_1()
2822                        .border_color(self.tool_card_border_color(cx))
2823                        .child(
2824                            h_flex()
2825                                .gap_1()
2826                                .child(
2827                                    Icon::new(IconName::ArrowCircle)
2828                                        .size(IconSize::Small)
2829                                        .color(Color::Accent)
2830                                        .with_animation(
2831                                            "arrow-circle",
2832                                            Animation::new(Duration::from_secs(2)).repeat(),
2833                                            |icon, delta| {
2834                                                icon.transform(Transformation::rotate(percentage(
2835                                                    delta,
2836                                                )))
2837                                            },
2838                                        ),
2839                                )
2840                                .child(
2841                                    Label::new("Running…")
2842                                        .size(LabelSize::XSmall)
2843                                        .color(Color::Muted)
2844                                        .buffer_font(cx),
2845                                ),
2846                        ),
2847                ),
2848                ToolUseStatus::Error(_) => container.child(
2849                    results_content_container()
2850                        .border_t_1()
2851                        .border_color(self.tool_card_border_color(cx))
2852                        .child(
2853                            Label::new("Error")
2854                                .size(LabelSize::XSmall)
2855                                .color(Color::Muted)
2856                                .buffer_font(cx),
2857                        )
2858                        .child(
2859                            div()
2860                                .text_ui_sm(cx)
2861                                .children(rendered_tool_use.as_ref().map(|rendered| {
2862                                    MarkdownElement::new(
2863                                        rendered.output.clone(),
2864                                        tool_use_markdown_style(window, cx),
2865                                    )
2866                                    .on_url_click({
2867                                        let workspace = self.workspace.clone();
2868                                        move |text, window, cx| {
2869                                            open_markdown_link(text, workspace.clone(), window, cx);
2870                                        }
2871                                    })
2872                                    .into_any_element()
2873                                })),
2874                        ),
2875                ),
2876                ToolUseStatus::Pending => container,
2877                ToolUseStatus::NeedsConfirmation => container.child(
2878                    results_content_container()
2879                        .border_t_1()
2880                        .border_color(self.tool_card_border_color(cx))
2881                        .child(
2882                            Label::new("Asking Permission")
2883                                .size(LabelSize::Small)
2884                                .color(Color::Muted)
2885                                .buffer_font(cx),
2886                        ),
2887                ),
2888            });
2889
2890        let gradient_overlay = |color: Hsla| {
2891            div()
2892                .h_full()
2893                .absolute()
2894                .w_12()
2895                .bottom_0()
2896                .map(|element| {
2897                    if is_status_finished {
2898                        element.right_6()
2899                    } else {
2900                        element.right(px(44.))
2901                    }
2902                })
2903                .bg(linear_gradient(
2904                    90.,
2905                    linear_color_stop(color, 1.),
2906                    linear_color_stop(color.opacity(0.2), 0.),
2907                ))
2908        };
2909
2910        v_flex().gap_1().mb_2().map(|element| {
2911            if !needs_confirmation_tools {
2912                element.child(
2913                    v_flex()
2914                        .child(
2915                            h_flex()
2916                                .group("disclosure-header")
2917                                .relative()
2918                                .gap_1p5()
2919                                .justify_between()
2920                                .opacity(0.8)
2921                                .hover(|style| style.opacity(1.))
2922                                .when(!is_status_finished, |this| this.pr_2())
2923                                .child(
2924                                    h_flex()
2925                                        .id("tool-label-container")
2926                                        .gap_1p5()
2927                                        .max_w_full()
2928                                        .overflow_x_scroll()
2929                                        .child(
2930                                            Icon::new(tool_use.icon)
2931                                                .size(IconSize::XSmall)
2932                                                .color(Color::Muted),
2933                                        )
2934                                        .child(
2935                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2936                                                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| {
2937                                                    open_markdown_link(text, workspace.clone(), window, cx);
2938                                                }}))
2939                                            ),
2940                                        ),
2941                                )
2942                                .child(
2943                                    h_flex()
2944                                        .gap_1()
2945                                        .child(
2946                                            div().visible_on_hover("disclosure-header").child(
2947                                                Disclosure::new("tool-use-disclosure", is_open)
2948                                                    .opened_icon(IconName::ChevronUp)
2949                                                    .closed_icon(IconName::ChevronDown)
2950                                                    .on_click(cx.listener({
2951                                                        let tool_use_id = tool_use.id.clone();
2952                                                        move |this, _event, _window, _cx| {
2953                                                            let is_open = this
2954                                                                .expanded_tool_uses
2955                                                                .entry(tool_use_id.clone())
2956                                                                .or_insert(false);
2957
2958                                                            *is_open = !*is_open;
2959                                                        }
2960                                                    })),
2961                                            ),
2962                                        )
2963                                        .child(status_icons),
2964                                )
2965                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2966                        )
2967                        .map(|parent| {
2968                            if !is_open {
2969                                return parent;
2970                            }
2971
2972                            parent.child(
2973                                v_flex()
2974                                    .mt_1()
2975                                    .border_1()
2976                                    .border_color(self.tool_card_border_color(cx))
2977                                    .bg(cx.theme().colors().editor_background)
2978                                    .rounded_lg()
2979                                    .child(results_content),
2980                            )
2981                        }),
2982                )
2983            } else {
2984                v_flex()
2985                    .mb_2()
2986                    .rounded_lg()
2987                    .border_1()
2988                    .border_color(self.tool_card_border_color(cx))
2989                    .overflow_hidden()
2990                    .child(
2991                        h_flex()
2992                            .group("disclosure-header")
2993                            .relative()
2994                            .justify_between()
2995                            .py_1()
2996                            .map(|element| {
2997                                if is_status_finished {
2998                                    element.pl_2().pr_0p5()
2999                                } else {
3000                                    element.px_2()
3001                                }
3002                            })
3003                            .bg(self.tool_card_header_bg(cx))
3004                            .map(|element| {
3005                                if is_open {
3006                                    element.border_b_1().rounded_t_md()
3007                                } else if needs_confirmation {
3008                                    element.rounded_t_md()
3009                                } else {
3010                                    element.rounded_md()
3011                                }
3012                            })
3013                            .border_color(self.tool_card_border_color(cx))
3014                            .child(
3015                                h_flex()
3016                                    .id("tool-label-container")
3017                                    .gap_1p5()
3018                                    .max_w_full()
3019                                    .overflow_x_scroll()
3020                                    .child(
3021                                        Icon::new(tool_use.icon)
3022                                            .size(IconSize::XSmall)
3023                                            .color(Color::Muted),
3024                                    )
3025                                    .child(
3026                                        h_flex().pr_8().text_ui_sm(cx).children(
3027                                            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| {
3028                                                open_markdown_link(text, workspace.clone(), window, cx);
3029                                            }}))
3030                                        ),
3031                                    ),
3032                            )
3033                            .child(
3034                                h_flex()
3035                                    .gap_1()
3036                                    .child(
3037                                        div().visible_on_hover("disclosure-header").child(
3038                                            Disclosure::new("tool-use-disclosure", is_open)
3039                                                .opened_icon(IconName::ChevronUp)
3040                                                .closed_icon(IconName::ChevronDown)
3041                                                .on_click(cx.listener({
3042                                                    let tool_use_id = tool_use.id.clone();
3043                                                    move |this, _event, _window, _cx| {
3044                                                        let is_open = this
3045                                                            .expanded_tool_uses
3046                                                            .entry(tool_use_id.clone())
3047                                                            .or_insert(false);
3048
3049                                                        *is_open = !*is_open;
3050                                                    }
3051                                                })),
3052                                        ),
3053                                    )
3054                                    .child(status_icons),
3055                            )
3056                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3057                    )
3058                    .map(|parent| {
3059                        if !is_open {
3060                            return parent;
3061                        }
3062
3063                        parent.child(
3064                            v_flex()
3065                                .bg(cx.theme().colors().editor_background)
3066                                .map(|element| {
3067                                    if  needs_confirmation {
3068                                        element.rounded_none()
3069                                    } else {
3070                                        element.rounded_b_lg()
3071                                    }
3072                                })
3073                                .child(results_content),
3074                        )
3075                    })
3076                    .when(needs_confirmation, |this| {
3077                        this.child(
3078                            h_flex()
3079                                .py_1()
3080                                .pl_2()
3081                                .pr_1()
3082                                .gap_1()
3083                                .justify_between()
3084                                .bg(cx.theme().colors().editor_background)
3085                                .border_t_1()
3086                                .border_color(self.tool_card_border_color(cx))
3087                                .rounded_b_lg()
3088                                .child(
3089                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3090                                )
3091                                .child(
3092                                    h_flex()
3093                                        .gap_0p5()
3094                                        .child({
3095                                            let tool_id = tool_use.id.clone();
3096                                            Button::new(
3097                                                "always-allow-tool-action",
3098                                                "Always Allow",
3099                                            )
3100                                            .label_size(LabelSize::Small)
3101                                            .icon(IconName::CheckDouble)
3102                                            .icon_position(IconPosition::Start)
3103                                            .icon_size(IconSize::Small)
3104                                            .icon_color(Color::Success)
3105                                            .tooltip(move |window, cx|  {
3106                                                Tooltip::with_meta(
3107                                                    "Never ask for permission",
3108                                                    None,
3109                                                    "Restore the original behavior in your Agent Panel settings",
3110                                                    window,
3111                                                    cx,
3112                                                )
3113                                            })
3114                                            .on_click(cx.listener(
3115                                                move |this, event, window, cx| {
3116                                                    if let Some(fs) = fs.clone() {
3117                                                        update_settings_file::<AgentSettings>(
3118                                                            fs.clone(),
3119                                                            cx,
3120                                                            |settings, _| {
3121                                                                settings.set_always_allow_tool_actions(true);
3122                                                            },
3123                                                        );
3124                                                    }
3125                                                    this.handle_allow_tool(
3126                                                        tool_id.clone(),
3127                                                        event,
3128                                                        window,
3129                                                        cx,
3130                                                    )
3131                                                },
3132                                            ))
3133                                        })
3134                                        .child(ui::Divider::vertical())
3135                                        .child({
3136                                            let tool_id = tool_use.id.clone();
3137                                            Button::new("allow-tool-action", "Allow")
3138                                                .label_size(LabelSize::Small)
3139                                                .icon(IconName::Check)
3140                                                .icon_position(IconPosition::Start)
3141                                                .icon_size(IconSize::Small)
3142                                                .icon_color(Color::Success)
3143                                                .on_click(cx.listener(
3144                                                    move |this, event, window, cx| {
3145                                                        this.handle_allow_tool(
3146                                                            tool_id.clone(),
3147                                                            event,
3148                                                            window,
3149                                                            cx,
3150                                                        )
3151                                                    },
3152                                                ))
3153                                        })
3154                                        .child({
3155                                            let tool_id = tool_use.id.clone();
3156                                            let tool_name: Arc<str> = tool_use.name.into();
3157                                            Button::new("deny-tool", "Deny")
3158                                                .label_size(LabelSize::Small)
3159                                                .icon(IconName::Close)
3160                                                .icon_position(IconPosition::Start)
3161                                                .icon_size(IconSize::Small)
3162                                                .icon_color(Color::Error)
3163                                                .on_click(cx.listener(
3164                                                    move |this, event, window, cx| {
3165                                                        this.handle_deny_tool(
3166                                                            tool_id.clone(),
3167                                                            tool_name.clone(),
3168                                                            event,
3169                                                            window,
3170                                                            cx,
3171                                                        )
3172                                                    },
3173                                                ))
3174                                        }),
3175                                ),
3176                        )
3177                    })
3178            }
3179        }).into_any_element()
3180    }
3181
3182    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3183        let project_context = self.thread.read(cx).project_context();
3184        let project_context = project_context.borrow();
3185        let Some(project_context) = project_context.as_ref() else {
3186            return div().into_any();
3187        };
3188
3189        let user_rules_text = if project_context.user_rules.is_empty() {
3190            None
3191        } else if project_context.user_rules.len() == 1 {
3192            let user_rules = &project_context.user_rules[0];
3193
3194            match user_rules.title.as_ref() {
3195                Some(title) => Some(format!("Using \"{title}\" user rule")),
3196                None => Some("Using user rule".into()),
3197            }
3198        } else {
3199            Some(format!(
3200                "Using {} user rules",
3201                project_context.user_rules.len()
3202            ))
3203        };
3204
3205        let first_user_rules_id = project_context
3206            .user_rules
3207            .first()
3208            .map(|user_rules| user_rules.uuid.0);
3209
3210        let rules_files = project_context
3211            .worktrees
3212            .iter()
3213            .filter_map(|worktree| worktree.rules_file.as_ref())
3214            .collect::<Vec<_>>();
3215
3216        let rules_file_text = match rules_files.as_slice() {
3217            &[] => None,
3218            &[rules_file] => Some(format!(
3219                "Using project {:?} file",
3220                rules_file.path_in_worktree
3221            )),
3222            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3223        };
3224
3225        if user_rules_text.is_none() && rules_file_text.is_none() {
3226            return div().into_any();
3227        }
3228
3229        v_flex()
3230            .pt_2()
3231            .px_2p5()
3232            .gap_1()
3233            .when_some(user_rules_text, |parent, user_rules_text| {
3234                parent.child(
3235                    h_flex()
3236                        .w_full()
3237                        .child(
3238                            Icon::new(RULES_ICON)
3239                                .size(IconSize::XSmall)
3240                                .color(Color::Disabled),
3241                        )
3242                        .child(
3243                            Label::new(user_rules_text)
3244                                .size(LabelSize::XSmall)
3245                                .color(Color::Muted)
3246                                .truncate()
3247                                .buffer_font(cx)
3248                                .ml_1p5()
3249                                .mr_0p5(),
3250                        )
3251                        .child(
3252                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3253                                .shape(ui::IconButtonShape::Square)
3254                                .icon_size(IconSize::XSmall)
3255                                .icon_color(Color::Ignored)
3256                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3257                                .tooltip(Tooltip::text("View User Rules"))
3258                                .on_click(move |_event, window, cx| {
3259                                    window.dispatch_action(
3260                                        Box::new(OpenRulesLibrary {
3261                                            prompt_to_select: first_user_rules_id,
3262                                        }),
3263                                        cx,
3264                                    )
3265                                }),
3266                        ),
3267                )
3268            })
3269            .when_some(rules_file_text, |parent, rules_file_text| {
3270                parent.child(
3271                    h_flex()
3272                        .w_full()
3273                        .child(
3274                            Icon::new(IconName::File)
3275                                .size(IconSize::XSmall)
3276                                .color(Color::Disabled),
3277                        )
3278                        .child(
3279                            Label::new(rules_file_text)
3280                                .size(LabelSize::XSmall)
3281                                .color(Color::Muted)
3282                                .buffer_font(cx)
3283                                .ml_1p5()
3284                                .mr_0p5(),
3285                        )
3286                        .child(
3287                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3288                                .shape(ui::IconButtonShape::Square)
3289                                .icon_size(IconSize::XSmall)
3290                                .icon_color(Color::Ignored)
3291                                .on_click(cx.listener(Self::handle_open_rules))
3292                                .tooltip(Tooltip::text("View Rules")),
3293                        ),
3294                )
3295            })
3296            .into_any()
3297    }
3298
3299    fn handle_allow_tool(
3300        &mut self,
3301        tool_use_id: LanguageModelToolUseId,
3302        _: &ClickEvent,
3303        window: &mut Window,
3304        cx: &mut Context<Self>,
3305    ) {
3306        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3307            .thread
3308            .read(cx)
3309            .pending_tool(&tool_use_id)
3310            .map(|tool_use| tool_use.status.clone())
3311        {
3312            self.thread.update(cx, |thread, cx| {
3313                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3314                    thread.run_tool(
3315                        c.tool_use_id.clone(),
3316                        c.ui_text.clone(),
3317                        c.input.clone(),
3318                        c.request.clone(),
3319                        c.tool.clone(),
3320                        configured.model,
3321                        Some(window.window_handle()),
3322                        cx,
3323                    );
3324                }
3325            });
3326        }
3327    }
3328
3329    fn handle_deny_tool(
3330        &mut self,
3331        tool_use_id: LanguageModelToolUseId,
3332        tool_name: Arc<str>,
3333        _: &ClickEvent,
3334        window: &mut Window,
3335        cx: &mut Context<Self>,
3336    ) {
3337        let window_handle = window.window_handle();
3338        self.thread.update(cx, |thread, cx| {
3339            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3340        });
3341    }
3342
3343    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3344        let project_context = self.thread.read(cx).project_context();
3345        let project_context = project_context.borrow();
3346        let Some(project_context) = project_context.as_ref() else {
3347            return;
3348        };
3349
3350        let project_entry_ids = project_context
3351            .worktrees
3352            .iter()
3353            .flat_map(|worktree| worktree.rules_file.as_ref())
3354            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3355            .collect::<Vec<_>>();
3356
3357        self.workspace
3358            .update(cx, move |workspace, cx| {
3359                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3360                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3361                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3362                let project = workspace.project().read(cx);
3363                let project_paths = project_entry_ids
3364                    .into_iter()
3365                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3366                    .collect::<Vec<_>>();
3367                for project_path in project_paths {
3368                    workspace
3369                        .open_path(project_path, None, true, window, cx)
3370                        .detach_and_log_err(cx);
3371                }
3372            })
3373            .ok();
3374    }
3375
3376    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3377        for window in self.notifications.drain(..) {
3378            window
3379                .update(cx, |_, window, _| {
3380                    window.remove_window();
3381                })
3382                .ok();
3383
3384            self.notification_subscriptions.remove(&window);
3385        }
3386    }
3387
3388    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3389        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3390            return None;
3391        }
3392
3393        Some(
3394            div()
3395                .occlude()
3396                .id("active-thread-scrollbar")
3397                .on_mouse_move(cx.listener(|_, _, _, cx| {
3398                    cx.notify();
3399                    cx.stop_propagation()
3400                }))
3401                .on_hover(|_, _, cx| {
3402                    cx.stop_propagation();
3403                })
3404                .on_any_mouse_down(|_, _, cx| {
3405                    cx.stop_propagation();
3406                })
3407                .on_mouse_up(
3408                    MouseButton::Left,
3409                    cx.listener(|_, _, _, cx| {
3410                        cx.stop_propagation();
3411                    }),
3412                )
3413                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3414                    cx.notify();
3415                }))
3416                .h_full()
3417                .absolute()
3418                .right_1()
3419                .top_1()
3420                .bottom_0()
3421                .w(px(12.))
3422                .cursor_default()
3423                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3424        )
3425    }
3426
3427    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3428        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3429        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3430            cx.background_executor()
3431                .timer(SCROLLBAR_SHOW_INTERVAL)
3432                .await;
3433            thread
3434                .update(cx, |thread, cx| {
3435                    if !thread.scrollbar_state.is_dragging() {
3436                        thread.show_scrollbar = false;
3437                        cx.notify();
3438                    }
3439                })
3440                .log_err();
3441        }))
3442    }
3443
3444    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3445        self.expanded_code_blocks
3446            .get(&(message_id, ix))
3447            .copied()
3448            .unwrap_or(true)
3449    }
3450
3451    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3452        let is_expanded = self
3453            .expanded_code_blocks
3454            .entry((message_id, ix))
3455            .or_insert(true);
3456        *is_expanded = !*is_expanded;
3457    }
3458
3459    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3460        self.list_state.reset(self.messages.len());
3461        cx.notify();
3462    }
3463}
3464
3465pub enum ActiveThreadEvent {
3466    EditingMessageTokenCountChanged,
3467}
3468
3469impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3470
3471impl Render for ActiveThread {
3472    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3473        v_flex()
3474            .size_full()
3475            .relative()
3476            .bg(cx.theme().colors().panel_background)
3477            .on_mouse_move(cx.listener(|this, _, _, cx| {
3478                this.show_scrollbar = true;
3479                this.hide_scrollbar_later(cx);
3480                cx.notify();
3481            }))
3482            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3483                this.show_scrollbar = true;
3484                this.hide_scrollbar_later(cx);
3485                cx.notify();
3486            }))
3487            .on_mouse_up(
3488                MouseButton::Left,
3489                cx.listener(|this, _, _, cx| {
3490                    this.hide_scrollbar_later(cx);
3491                }),
3492            )
3493            .child(list(self.list_state.clone()).flex_grow())
3494            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3495                this.child(scrollbar)
3496            })
3497    }
3498}
3499
3500pub(crate) fn open_active_thread_as_markdown(
3501    thread: Entity<Thread>,
3502    workspace: Entity<Workspace>,
3503    window: &mut Window,
3504    cx: &mut App,
3505) -> Task<anyhow::Result<()>> {
3506    let markdown_language_task = workspace
3507        .read(cx)
3508        .app_state()
3509        .languages
3510        .language_for_name("Markdown");
3511
3512    window.spawn(cx, async move |cx| {
3513        let markdown_language = markdown_language_task.await?;
3514
3515        workspace.update_in(cx, |workspace, window, cx| {
3516            let thread = thread.read(cx);
3517            let markdown = thread.to_markdown(cx)?;
3518            let thread_summary = thread.summary().or_default().to_string();
3519
3520            let project = workspace.project().clone();
3521
3522            if !project.read(cx).is_local() {
3523                anyhow::bail!("failed to open active thread as markdown in remote project");
3524            }
3525
3526            let buffer = project.update(cx, |project, cx| {
3527                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3528            });
3529            let buffer =
3530                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3531
3532            workspace.add_item_to_active_pane(
3533                Box::new(cx.new(|cx| {
3534                    let mut editor =
3535                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3536                    editor.set_breadcrumb_header(thread_summary);
3537                    editor
3538                })),
3539                None,
3540                true,
3541                window,
3542                cx,
3543            );
3544
3545            anyhow::Ok(())
3546        })??;
3547        anyhow::Ok(())
3548    })
3549}
3550
3551pub(crate) fn open_context(
3552    context: &AgentContextHandle,
3553    workspace: Entity<Workspace>,
3554    window: &mut Window,
3555    cx: &mut App,
3556) {
3557    match context {
3558        AgentContextHandle::File(file_context) => {
3559            if let Some(project_path) = file_context.project_path(cx) {
3560                workspace.update(cx, |workspace, cx| {
3561                    workspace
3562                        .open_path(project_path, None, true, window, cx)
3563                        .detach_and_log_err(cx);
3564                });
3565            }
3566        }
3567
3568        AgentContextHandle::Directory(directory_context) => {
3569            let entry_id = directory_context.entry_id;
3570            workspace.update(cx, |workspace, cx| {
3571                workspace.project().update(cx, |_project, cx| {
3572                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3573                })
3574            })
3575        }
3576
3577        AgentContextHandle::Symbol(symbol_context) => {
3578            let buffer = symbol_context.buffer.read(cx);
3579            if let Some(project_path) = buffer.project_path(cx) {
3580                let snapshot = buffer.snapshot();
3581                let target_position = symbol_context.range.start.to_point(&snapshot);
3582                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3583                    .detach();
3584            }
3585        }
3586
3587        AgentContextHandle::Selection(selection_context) => {
3588            let buffer = selection_context.buffer.read(cx);
3589            if let Some(project_path) = buffer.project_path(cx) {
3590                let snapshot = buffer.snapshot();
3591                let target_position = selection_context.range.start.to_point(&snapshot);
3592
3593                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3594                    .detach();
3595            }
3596        }
3597
3598        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3599            cx.open_url(&fetched_url_context.url);
3600        }
3601
3602        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3603            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3604                panel.update(cx, |panel, cx| {
3605                    panel.open_thread(thread_context.thread.clone(), window, cx);
3606                });
3607            }
3608        }),
3609
3610        AgentContextHandle::TextThread(text_thread_context) => {
3611            workspace.update(cx, |workspace, cx| {
3612                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3613                    panel.update(cx, |panel, cx| {
3614                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3615                    });
3616                }
3617            })
3618        }
3619
3620        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3621            Box::new(OpenRulesLibrary {
3622                prompt_to_select: Some(rules_context.prompt_id.0),
3623            }),
3624            cx,
3625        ),
3626
3627        AgentContextHandle::Image(_) => {}
3628    }
3629}
3630
3631fn open_editor_at_position(
3632    project_path: project::ProjectPath,
3633    target_position: Point,
3634    workspace: &Entity<Workspace>,
3635    window: &mut Window,
3636    cx: &mut App,
3637) -> Task<()> {
3638    let open_task = workspace.update(cx, |workspace, cx| {
3639        workspace.open_path(project_path, None, true, window, cx)
3640    });
3641    window.spawn(cx, async move |cx| {
3642        if let Some(active_editor) = open_task
3643            .await
3644            .log_err()
3645            .and_then(|item| item.downcast::<Editor>())
3646        {
3647            active_editor
3648                .downgrade()
3649                .update_in(cx, |editor, window, cx| {
3650                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3651                })
3652                .log_err();
3653        }
3654    })
3655}
3656
3657#[cfg(test)]
3658mod tests {
3659    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3660    use editor::EditorSettings;
3661    use fs::FakeFs;
3662    use gpui::{AppContext, TestAppContext, VisualTestContext};
3663    use language_model::{LanguageModel, fake_provider::FakeLanguageModel};
3664    use project::Project;
3665    use prompt_store::PromptBuilder;
3666    use serde_json::json;
3667    use settings::SettingsStore;
3668    use util::path;
3669    use workspace::CollaboratorId;
3670
3671    use crate::{ContextLoadResult, thread_store};
3672
3673    use super::*;
3674
3675    #[gpui::test]
3676    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3677        init_test_settings(cx);
3678
3679        let project = create_test_project(
3680            cx,
3681            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3682        )
3683        .await;
3684
3685        let (cx, _active_thread, workspace, thread, model) =
3686            setup_test_environment(cx, project.clone()).await;
3687
3688        // Insert user message without any context (empty context vector)
3689        thread.update(cx, |thread, cx| {
3690            thread.insert_user_message(
3691                "What is the best way to learn Rust?",
3692                ContextLoadResult::default(),
3693                None,
3694                vec![],
3695                cx,
3696            );
3697        });
3698
3699        // Stream response to user message
3700        thread.update(cx, |thread, cx| {
3701            let request =
3702                thread.to_completion_request(model.clone(), CompletionIntent::UserPrompt, cx);
3703            thread.stream_completion(request, model, cx.active_window(), cx)
3704        });
3705        // Follow the agent
3706        cx.update(|window, cx| {
3707            workspace.update(cx, |workspace, cx| {
3708                workspace.follow(CollaboratorId::Agent, window, cx);
3709            })
3710        });
3711        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3712
3713        // Cancel the current completion
3714        thread.update(cx, |thread, cx| {
3715            thread.cancel_last_completion(cx.active_window(), cx)
3716        });
3717
3718        cx.executor().run_until_parked();
3719
3720        // No longer following the agent
3721        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3722    }
3723
3724    fn init_test_settings(cx: &mut TestAppContext) {
3725        cx.update(|cx| {
3726            let settings_store = SettingsStore::test(cx);
3727            cx.set_global(settings_store);
3728            language::init(cx);
3729            Project::init_settings(cx);
3730            AgentSettings::register(cx);
3731            prompt_store::init(cx);
3732            thread_store::init(cx);
3733            workspace::init_settings(cx);
3734            language_model::init_settings(cx);
3735            ThemeSettings::register(cx);
3736            EditorSettings::register(cx);
3737            ToolRegistry::default_global(cx);
3738        });
3739    }
3740
3741    // Helper to create a test project with test files
3742    async fn create_test_project(
3743        cx: &mut TestAppContext,
3744        files: serde_json::Value,
3745    ) -> Entity<Project> {
3746        let fs = FakeFs::new(cx.executor());
3747        fs.insert_tree(path!("/test"), files).await;
3748        Project::test(fs, [path!("/test").as_ref()], cx).await
3749    }
3750
3751    async fn setup_test_environment(
3752        cx: &mut TestAppContext,
3753        project: Entity<Project>,
3754    ) -> (
3755        &mut VisualTestContext,
3756        Entity<ActiveThread>,
3757        Entity<Workspace>,
3758        Entity<Thread>,
3759        Arc<dyn LanguageModel>,
3760    ) {
3761        let (workspace, cx) =
3762            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
3763
3764        let thread_store = cx
3765            .update(|_, cx| {
3766                ThreadStore::load(
3767                    project.clone(),
3768                    cx.new(|_| ToolWorkingSet::default()),
3769                    None,
3770                    Arc::new(PromptBuilder::new(None).unwrap()),
3771                    cx,
3772                )
3773            })
3774            .await
3775            .unwrap();
3776
3777        let text_thread_store = cx
3778            .update(|_, cx| {
3779                TextThreadStore::new(
3780                    project.clone(),
3781                    Arc::new(PromptBuilder::new(None).unwrap()),
3782                    Default::default(),
3783                    cx,
3784                )
3785            })
3786            .await
3787            .unwrap();
3788
3789        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
3790        let context_store =
3791            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
3792
3793        let model = FakeLanguageModel::default();
3794        let model: Arc<dyn LanguageModel> = Arc::new(model);
3795
3796        let language_registry = LanguageRegistry::new(cx.executor());
3797        let language_registry = Arc::new(language_registry);
3798
3799        let active_thread = cx.update(|window, cx| {
3800            cx.new(|cx| {
3801                ActiveThread::new(
3802                    thread.clone(),
3803                    thread_store.clone(),
3804                    text_thread_store,
3805                    context_store.clone(),
3806                    language_registry.clone(),
3807                    workspace.downgrade(),
3808                    window,
3809                    cx,
3810                )
3811            })
3812        });
3813
3814        (cx, active_thread, workspace, thread, model)
3815    }
3816}