active_thread.rs

   1use crate::context_picker::{ContextPicker, MentionLink};
   2use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   3use crate::message_editor::{extract_message_creases, insert_message_creases};
   4use crate::ui::{AddedContext, AgentNotification, AgentNotificationEvent, ContextPill};
   5use crate::{AgentPanel, ModelUsageContext};
   6use agent::{
   7    ContextStore, LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, TextThreadStore,
   8    Thread, ThreadError, ThreadEvent, ThreadFeedback, ThreadStore, ThreadSummary,
   9    context::{self, AgentContextHandle, RULES_ICON},
  10    thread_store::RulesLoadingError,
  11    tool_use::{PendingToolUseStatus, ToolUse},
  12};
  13use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  14use anyhow::Context as _;
  15use assistant_tool::ToolUseStatus;
  16use audio::{Audio, Sound};
  17use cloud_llm_client::CompletionIntent;
  18use collections::{HashMap, HashSet};
  19use editor::actions::{MoveUp, Paste};
  20use editor::scroll::Autoscroll;
  21use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer, SelectionEffects};
  22use gpui::{
  23    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  24    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  25    ListAlignment, ListOffset, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  26    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, UnderlineStyle,
  27    WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, pulsating_between,
  28};
  29use language::{Buffer, Language, LanguageRegistry};
  30use language_model::{
  31    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  32};
  33use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  34use markdown::{
  35    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  36};
  37use project::{ProjectEntryId, ProjectItem as _};
  38use rope::Point;
  39use settings::{Settings as _, SettingsStore, update_settings_file};
  40use std::ffi::OsStr;
  41use std::path::Path;
  42use std::rc::Rc;
  43use std::sync::Arc;
  44use std::time::Duration;
  45use text::ToPoint;
  46use theme::ThemeSettings;
  47use ui::{
  48    Banner, CommonAnimationExt, Disclosure, KeyBinding, PopoverMenuHandle, Scrollbar,
  49    ScrollbarState, TextSize, Tooltip, prelude::*,
  50};
  51use util::ResultExt as _;
  52use util::markdown::MarkdownCodeBlock;
  53use workspace::{CollaboratorId, Workspace};
  54use zed_actions::assistant::OpenRulesLibrary;
  55
  56const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
  57const EDIT_PREVIOUS_MESSAGE_MIN_LINES: usize = 1;
  58const RESPONSE_PADDING_X: Pixels = px(19.);
  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    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  72    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  73    editing_message: Option<(MessageId, EditingMessageState)>,
  74    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  75    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  76    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  77    last_error: Option<ThreadError>,
  78    notifications: Vec<WindowHandle<AgentNotification>>,
  79    copied_code_block_ids: HashSet<(MessageId, usize)>,
  80    _subscriptions: Vec<Subscription>,
  81    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  82    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  83    _load_edited_message_context_task: Option<Task<()>>,
  84}
  85
  86struct RenderedMessage {
  87    language_registry: Arc<LanguageRegistry>,
  88    segments: Vec<RenderedMessageSegment>,
  89}
  90
  91#[derive(Clone)]
  92struct RenderedToolUse {
  93    label: Entity<Markdown>,
  94    input: Entity<Markdown>,
  95    output: Entity<Markdown>,
  96}
  97
  98impl RenderedMessage {
  99    fn from_segments(
 100        segments: &[MessageSegment],
 101        language_registry: Arc<LanguageRegistry>,
 102        cx: &mut App,
 103    ) -> Self {
 104        let mut this = Self {
 105            language_registry,
 106            segments: Vec::with_capacity(segments.len()),
 107        };
 108        for segment in segments {
 109            this.push_segment(segment, cx);
 110        }
 111        this
 112    }
 113
 114    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 115        if let Some(RenderedMessageSegment::Thinking {
 116            content,
 117            scroll_handle,
 118        }) = self.segments.last_mut()
 119        {
 120            content.update(cx, |markdown, cx| {
 121                markdown.append(text, cx);
 122            });
 123            scroll_handle.scroll_to_bottom();
 124        } else {
 125            self.segments.push(RenderedMessageSegment::Thinking {
 126                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 127                scroll_handle: ScrollHandle::default(),
 128            });
 129        }
 130    }
 131
 132    fn append_text(&mut self, text: &String, cx: &mut App) {
 133        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 134            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 135        } else {
 136            self.segments
 137                .push(RenderedMessageSegment::Text(parse_markdown(
 138                    SharedString::from(text),
 139                    self.language_registry.clone(),
 140                    cx,
 141                )));
 142        }
 143    }
 144
 145    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 146        match segment {
 147            MessageSegment::Thinking { text, .. } => {
 148                self.segments.push(RenderedMessageSegment::Thinking {
 149                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 150                    scroll_handle: ScrollHandle::default(),
 151                })
 152            }
 153            MessageSegment::Text(text) => {
 154                self.segments
 155                    .push(RenderedMessageSegment::Text(parse_markdown(
 156                        text.into(),
 157                        self.language_registry.clone(),
 158                        cx,
 159                    )))
 160            }
 161            MessageSegment::RedactedThinking(_) => {}
 162        };
 163    }
 164}
 165
 166enum RenderedMessageSegment {
 167    Thinking {
 168        content: Entity<Markdown>,
 169        scroll_handle: ScrollHandle,
 170    },
 171    Text(Entity<Markdown>),
 172}
 173
 174fn parse_markdown(
 175    text: SharedString,
 176    language_registry: Arc<LanguageRegistry>,
 177    cx: &mut App,
 178) -> Entity<Markdown> {
 179    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 180}
 181
 182pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 183    let theme_settings = ThemeSettings::get_global(cx);
 184    let colors = cx.theme().colors();
 185    let ui_font_size = TextSize::Default.rems(cx);
 186    let buffer_font_size = TextSize::Small.rems(cx);
 187    let mut text_style = window.text_style();
 188    let line_height = buffer_font_size * 1.75;
 189
 190    text_style.refine(&TextStyleRefinement {
 191        font_family: Some(theme_settings.ui_font.family.clone()),
 192        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 193        font_features: Some(theme_settings.ui_font.features.clone()),
 194        font_size: Some(ui_font_size.into()),
 195        line_height: Some(line_height.into()),
 196        color: Some(cx.theme().colors().text),
 197        ..Default::default()
 198    });
 199
 200    MarkdownStyle {
 201        base_text_style: text_style.clone(),
 202        syntax: cx.theme().syntax().clone(),
 203        selection_background_color: cx.theme().colors().element_selection_background,
 204        code_block_overflow_x_scroll: true,
 205        table_overflow_x_scroll: true,
 206        heading_level_styles: Some(HeadingLevelStyles {
 207            h1: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.15).into()),
 209                ..Default::default()
 210            }),
 211            h2: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.1).into()),
 213                ..Default::default()
 214            }),
 215            h3: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.05).into()),
 217                ..Default::default()
 218            }),
 219            h4: Some(TextStyleRefinement {
 220                font_size: Some(rems(1.).into()),
 221                ..Default::default()
 222            }),
 223            h5: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.95).into()),
 225                ..Default::default()
 226            }),
 227            h6: Some(TextStyleRefinement {
 228                font_size: Some(rems(0.875).into()),
 229                ..Default::default()
 230            }),
 231        }),
 232        code_block: StyleRefinement {
 233            padding: EdgesRefinement {
 234                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238            },
 239            background: Some(colors.editor_background.into()),
 240            text: Some(TextStyleRefinement {
 241                font_family: Some(theme_settings.buffer_font.family.clone()),
 242                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 243                font_features: Some(theme_settings.buffer_font.features.clone()),
 244                font_size: Some(buffer_font_size.into()),
 245                ..Default::default()
 246            }),
 247            ..Default::default()
 248        },
 249        inline_code: TextStyleRefinement {
 250            font_family: Some(theme_settings.buffer_font.family.clone()),
 251            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 252            font_features: Some(theme_settings.buffer_font.features.clone()),
 253            font_size: Some(buffer_font_size.into()),
 254            background_color: Some(colors.editor_foreground.opacity(0.08)),
 255            ..Default::default()
 256        },
 257        link: TextStyleRefinement {
 258            background_color: Some(colors.editor_foreground.opacity(0.025)),
 259            underline: Some(UnderlineStyle {
 260                color: Some(colors.text_accent.opacity(0.5)),
 261                thickness: px(1.),
 262                ..Default::default()
 263            }),
 264            ..Default::default()
 265        },
 266        link_callback: Some(Rc::new(move |url, cx| {
 267            if MentionLink::is_valid(url) {
 268                let colors = cx.theme().colors();
 269                Some(TextStyleRefinement {
 270                    background_color: Some(colors.element_background),
 271                    ..Default::default()
 272                })
 273            } else {
 274                None
 275            }
 276        })),
 277        ..Default::default()
 278    }
 279}
 280
 281fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 282    let theme_settings = ThemeSettings::get_global(cx);
 283    let colors = cx.theme().colors();
 284    let ui_font_size = TextSize::Default.rems(cx);
 285    let buffer_font_size = TextSize::Small.rems(cx);
 286    let mut text_style = window.text_style();
 287
 288    text_style.refine(&TextStyleRefinement {
 289        font_family: Some(theme_settings.ui_font.family.clone()),
 290        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 291        font_features: Some(theme_settings.ui_font.features.clone()),
 292        font_size: Some(ui_font_size.into()),
 293        color: Some(cx.theme().colors().text),
 294        ..Default::default()
 295    });
 296
 297    MarkdownStyle {
 298        base_text_style: text_style,
 299        syntax: cx.theme().syntax().clone(),
 300        selection_background_color: cx.theme().colors().element_selection_background,
 301        code_block_overflow_x_scroll: false,
 302        code_block: StyleRefinement {
 303            margin: EdgesRefinement::default(),
 304            padding: EdgesRefinement::default(),
 305            background: Some(colors.editor_background.into()),
 306            border_color: None,
 307            border_widths: EdgesRefinement::default(),
 308            text: Some(TextStyleRefinement {
 309                font_family: Some(theme_settings.buffer_font.family.clone()),
 310                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 311                font_features: Some(theme_settings.buffer_font.features.clone()),
 312                font_size: Some(buffer_font_size.into()),
 313                ..Default::default()
 314            }),
 315            ..Default::default()
 316        },
 317        inline_code: TextStyleRefinement {
 318            font_family: Some(theme_settings.buffer_font.family.clone()),
 319            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 320            font_features: Some(theme_settings.buffer_font.features.clone()),
 321            font_size: Some(TextSize::XSmall.rems(cx).into()),
 322            ..Default::default()
 323        },
 324        heading: StyleRefinement {
 325            text: Some(TextStyleRefinement {
 326                font_size: Some(ui_font_size.into()),
 327                ..Default::default()
 328            }),
 329            ..Default::default()
 330        },
 331        ..Default::default()
 332    }
 333}
 334
 335fn render_markdown_code_block(
 336    message_id: MessageId,
 337    ix: usize,
 338    kind: &CodeBlockKind,
 339    parsed_markdown: &ParsedMarkdown,
 340    metadata: CodeBlockMetadata,
 341    active_thread: Entity<ActiveThread>,
 342    workspace: WeakEntity<Workspace>,
 343    _window: &Window,
 344    cx: &App,
 345) -> Div {
 346    let label_size = rems(0.8125);
 347
 348    let label = match kind {
 349        CodeBlockKind::Indented => None,
 350        CodeBlockKind::Fenced => Some(
 351            h_flex()
 352                .px_1()
 353                .gap_1()
 354                .child(
 355                    Icon::new(IconName::Code)
 356                        .color(Color::Muted)
 357                        .size(IconSize::XSmall),
 358                )
 359                .child(div().text_size(label_size).child("Plain Text"))
 360                .into_any_element(),
 361        ),
 362        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 363            parsed_markdown.languages_by_name.get(raw_language_name),
 364            raw_language_name.clone(),
 365            cx,
 366        )),
 367        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 368            // We tell the model to use /dev/null for the path instead of using ```language
 369            // because otherwise it consistently fails to use code citations.
 370            if path_range.path.starts_with("/dev/null") {
 371                let ext = path_range
 372                    .path
 373                    .extension()
 374                    .and_then(OsStr::to_str)
 375                    .map(|str| SharedString::new(str.to_string()))
 376                    .unwrap_or_default();
 377
 378                render_code_language(
 379                    parsed_markdown
 380                        .languages_by_path
 381                        .get(&path_range.path)
 382                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 383                    ext,
 384                    cx,
 385                )
 386            } else {
 387                let content = if let Some(parent) = path_range.path.parent() {
 388                    let file_name = file_name.to_string_lossy().to_string();
 389                    let path = parent.to_string_lossy().to_string();
 390                    let path_and_file = format!("{}/{}", path, file_name);
 391
 392                    h_flex()
 393                        .id(("code-block-header-label", ix))
 394                        .ml_1()
 395                        .gap_1()
 396                        .child(div().text_size(label_size).child(file_name))
 397                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 398                        .tooltip(move |window, cx| {
 399                            Tooltip::with_meta(
 400                                "Jump to File",
 401                                None,
 402                                path_and_file.clone(),
 403                                window,
 404                                cx,
 405                            )
 406                        })
 407                        .into_any_element()
 408                } else {
 409                    div()
 410                        .ml_1()
 411                        .text_size(label_size)
 412                        .child(path_range.path.to_string_lossy().to_string())
 413                        .into_any_element()
 414                };
 415
 416                h_flex()
 417                    .id(("code-block-header-button", ix))
 418                    .w_full()
 419                    .max_w_full()
 420                    .px_1()
 421                    .gap_0p5()
 422                    .cursor_pointer()
 423                    .rounded_sm()
 424                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 425                    .child(
 426                        h_flex()
 427                            .gap_0p5()
 428                            .children(
 429                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 430                                    .map(Icon::from_path)
 431                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 432                            )
 433                            .child(content)
 434                            .child(
 435                                Icon::new(IconName::ArrowUpRight)
 436                                    .size(IconSize::Small)
 437                                    .color(Color::Ignored),
 438                            ),
 439                    )
 440                    .on_click({
 441                        let path_range = path_range.clone();
 442                        move |_, window, cx| {
 443                            workspace
 444                                .update(cx, |workspace, cx| {
 445                                    open_path(&path_range, window, workspace, cx)
 446                                })
 447                                .ok();
 448                        }
 449                    })
 450                    .into_any_element()
 451            }
 452        }),
 453    };
 454
 455    let codeblock_was_copied = active_thread
 456        .read(cx)
 457        .copied_code_block_ids
 458        .contains(&(message_id, ix));
 459
 460    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 461
 462    let codeblock_header_bg = cx
 463        .theme()
 464        .colors()
 465        .element_background
 466        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 467
 468    let control_buttons = h_flex()
 469        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 470        .absolute()
 471        .top_0()
 472        .right_0()
 473        .h_full()
 474        .bg(codeblock_header_bg)
 475        .rounded_tr_md()
 476        .px_1()
 477        .gap_1()
 478        .child(
 479            IconButton::new(
 480                ("copy-markdown-code", ix),
 481                if codeblock_was_copied {
 482                    IconName::Check
 483                } else {
 484                    IconName::Copy
 485                },
 486            )
 487            .icon_color(Color::Muted)
 488            .shape(ui::IconButtonShape::Square)
 489            .tooltip(Tooltip::text("Copy Code"))
 490            .on_click({
 491                let active_thread = active_thread.clone();
 492                let parsed_markdown = parsed_markdown.clone();
 493                let code_block_range = metadata.content_range;
 494                move |_event, _window, cx| {
 495                    active_thread.update(cx, |this, cx| {
 496                        this.copied_code_block_ids.insert((message_id, ix));
 497
 498                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 499                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 500
 501                        cx.spawn(async move |this, cx| {
 502                            cx.background_executor().timer(Duration::from_secs(2)).await;
 503
 504                            cx.update(|cx| {
 505                                this.update(cx, |this, cx| {
 506                                    this.copied_code_block_ids.remove(&(message_id, ix));
 507                                    cx.notify();
 508                                })
 509                            })
 510                            .ok();
 511                        })
 512                        .detach();
 513                    });
 514                }
 515            }),
 516        )
 517        .child(
 518            IconButton::new(
 519                ("expand-collapse-code", ix),
 520                if is_expanded {
 521                    IconName::ChevronUp
 522                } else {
 523                    IconName::ChevronDown
 524                },
 525            )
 526            .icon_color(Color::Muted)
 527            .shape(ui::IconButtonShape::Square)
 528            .tooltip(Tooltip::text(if is_expanded {
 529                "Collapse Code"
 530            } else {
 531                "Expand Code"
 532            }))
 533            .on_click({
 534                move |_event, _window, cx| {
 535                    active_thread.update(cx, |this, cx| {
 536                        this.toggle_codeblock_expanded(message_id, ix);
 537                        cx.notify();
 538                    });
 539                }
 540            }),
 541        );
 542
 543    let codeblock_header = h_flex()
 544        .relative()
 545        .p_1()
 546        .gap_1()
 547        .justify_between()
 548        .bg(codeblock_header_bg)
 549        .map(|this| {
 550            if !is_expanded {
 551                this.rounded_md()
 552            } else {
 553                this.rounded_t_md()
 554                    .border_b_1()
 555                    .border_color(cx.theme().colors().border.opacity(0.6))
 556            }
 557        })
 558        .children(label)
 559        .child(control_buttons);
 560
 561    v_flex()
 562        .group(CODEBLOCK_CONTAINER_GROUP)
 563        .my_2()
 564        .overflow_hidden()
 565        .rounded_md()
 566        .border_1()
 567        .border_color(cx.theme().colors().border.opacity(0.6))
 568        .bg(cx.theme().colors().editor_background)
 569        .child(codeblock_header)
 570        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 571}
 572
 573fn open_path(
 574    path_range: &PathWithRange,
 575    window: &mut Window,
 576    workspace: &mut Workspace,
 577    cx: &mut Context<'_, Workspace>,
 578) {
 579    let Some(project_path) = workspace
 580        .project()
 581        .read(cx)
 582        .find_project_path(&path_range.path, cx)
 583    else {
 584        return; // TODO instead of just bailing out, open that path in a buffer.
 585    };
 586
 587    let Some(target) = path_range.range.as_ref().map(|range| {
 588        Point::new(
 589            // Line number is 1-based
 590            range.start.line.saturating_sub(1),
 591            range.start.col.unwrap_or(0),
 592        )
 593    }) else {
 594        return;
 595    };
 596    let open_task = workspace.open_path(project_path, None, true, window, cx);
 597    window
 598        .spawn(cx, async move |cx| {
 599            let item = open_task.await?;
 600            if let Some(active_editor) = item.downcast::<Editor>() {
 601                active_editor
 602                    .update_in(cx, |editor, window, cx| {
 603                        editor.go_to_singleton_buffer_point(target, window, cx);
 604                    })
 605                    .ok();
 606            }
 607            anyhow::Ok(())
 608        })
 609        .detach_and_log_err(cx);
 610}
 611
 612fn render_code_language(
 613    language: Option<&Arc<Language>>,
 614    name_fallback: SharedString,
 615    cx: &App,
 616) -> AnyElement {
 617    let icon_path = language.and_then(|language| {
 618        language
 619            .config()
 620            .matcher
 621            .path_suffixes
 622            .iter()
 623            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 624            .map(Icon::from_path)
 625    });
 626
 627    let language_label = language
 628        .map(|language| language.name().into())
 629        .unwrap_or(name_fallback);
 630
 631    let label_size = rems(0.8125);
 632
 633    h_flex()
 634        .px_1()
 635        .gap_1p5()
 636        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 637        .child(div().text_size(label_size).child(language_label))
 638        .into_any_element()
 639}
 640
 641fn open_markdown_link(
 642    text: SharedString,
 643    workspace: WeakEntity<Workspace>,
 644    window: &mut Window,
 645    cx: &mut App,
 646) {
 647    let Some(workspace) = workspace.upgrade() else {
 648        cx.open_url(&text);
 649        return;
 650    };
 651
 652    match MentionLink::try_parse(&text, &workspace, cx) {
 653        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 654            if entry.is_dir() {
 655                workspace.project().update(cx, |_, cx| {
 656                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 657                })
 658            } else {
 659                workspace
 660                    .open_path(path, None, true, window, cx)
 661                    .detach_and_log_err(cx);
 662            }
 663        }),
 664        Some(MentionLink::Symbol(path, symbol_name)) => {
 665            let open_task = workspace.update(cx, |workspace, cx| {
 666                workspace.open_path(path, None, true, window, cx)
 667            });
 668            window
 669                .spawn(cx, async move |cx| {
 670                    let active_editor = open_task
 671                        .await?
 672                        .downcast::<Editor>()
 673                        .context("Item is not an editor")?;
 674                    active_editor.update_in(cx, |editor, window, cx| {
 675                        let symbol_range = editor
 676                            .buffer()
 677                            .read(cx)
 678                            .snapshot(cx)
 679                            .outline(None)
 680                            .and_then(|outline| {
 681                                outline
 682                                    .find_most_similar(&symbol_name)
 683                                    .map(|(_, item)| item.range.clone())
 684                            })
 685                            .context("Could not find matching symbol")?;
 686
 687                        editor.change_selections(
 688                            SelectionEffects::scroll(Autoscroll::center()),
 689                            window,
 690                            cx,
 691                            |s| s.select_anchor_ranges([symbol_range.start..symbol_range.start]),
 692                        );
 693                        anyhow::Ok(())
 694                    })
 695                })
 696                .detach_and_log_err(cx);
 697        }
 698        Some(MentionLink::Selection(path, line_range)) => {
 699            let open_task = workspace.update(cx, |workspace, cx| {
 700                workspace.open_path(path, None, true, window, cx)
 701            });
 702            window
 703                .spawn(cx, async move |cx| {
 704                    let active_editor = open_task
 705                        .await?
 706                        .downcast::<Editor>()
 707                        .context("Item is not an editor")?;
 708                    active_editor.update_in(cx, |editor, window, cx| {
 709                        editor.change_selections(
 710                            SelectionEffects::scroll(Autoscroll::center()),
 711                            window,
 712                            cx,
 713                            |s| {
 714                                s.select_ranges([Point::new(line_range.start as u32, 0)
 715                                    ..Point::new(line_range.start as u32, 0)])
 716                            },
 717                        );
 718                        anyhow::Ok(())
 719                    })
 720                })
 721                .detach_and_log_err(cx);
 722        }
 723        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 724            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 725                panel.update(cx, |panel, cx| {
 726                    panel
 727                        .open_thread_by_id(&thread_id, window, cx)
 728                        .detach_and_log_err(cx)
 729                });
 730            }
 731        }),
 732        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 733            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 734                panel.update(cx, |panel, cx| {
 735                    panel
 736                        .open_saved_prompt_editor(path, window, cx)
 737                        .detach_and_log_err(cx);
 738                });
 739            }
 740        }),
 741        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 742        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 743            Box::new(OpenRulesLibrary {
 744                prompt_to_select: Some(prompt_id.0),
 745            }),
 746            cx,
 747        ),
 748        None => cx.open_url(&text),
 749    }
 750}
 751
 752struct EditingMessageState {
 753    editor: Entity<Editor>,
 754    context_strip: Entity<ContextStrip>,
 755    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 756    last_estimated_token_count: Option<u64>,
 757    _subscriptions: [Subscription; 2],
 758    _update_token_count_task: Option<Task<()>>,
 759}
 760
 761impl ActiveThread {
 762    pub fn new(
 763        thread: Entity<Thread>,
 764        thread_store: Entity<ThreadStore>,
 765        text_thread_store: Entity<TextThreadStore>,
 766        context_store: Entity<ContextStore>,
 767        language_registry: Arc<LanguageRegistry>,
 768        workspace: WeakEntity<Workspace>,
 769        window: &mut Window,
 770        cx: &mut Context<Self>,
 771    ) -> Self {
 772        let subscriptions = vec![
 773            cx.observe(&thread, |_, _, cx| cx.notify()),
 774            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 775            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 776            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 777        ];
 778
 779        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.));
 780
 781        let workspace_subscription = workspace.upgrade().map(|workspace| {
 782            cx.observe_release(&workspace, |this, _, cx| {
 783                this.dismiss_notifications(cx);
 784            })
 785        });
 786
 787        let mut this = Self {
 788            language_registry,
 789            thread_store,
 790            text_thread_store,
 791            context_store,
 792            thread: thread.clone(),
 793            workspace,
 794            save_thread_task: None,
 795            messages: Vec::new(),
 796            rendered_messages_by_id: HashMap::default(),
 797            rendered_tool_uses: HashMap::default(),
 798            expanded_tool_uses: HashMap::default(),
 799            expanded_thinking_segments: HashMap::default(),
 800            expanded_code_blocks: HashMap::default(),
 801            list_state: list_state.clone(),
 802            scrollbar_state: ScrollbarState::new(list_state).parent_entity(&cx.entity()),
 803            editing_message: None,
 804            last_error: None,
 805            copied_code_block_ids: HashSet::default(),
 806            notifications: Vec::new(),
 807            _subscriptions: subscriptions,
 808            notification_subscriptions: HashMap::default(),
 809            open_feedback_editors: HashMap::default(),
 810            _load_edited_message_context_task: None,
 811        };
 812
 813        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 814            let rendered_message = RenderedMessage::from_segments(
 815                &message.segments,
 816                this.language_registry.clone(),
 817                cx,
 818            );
 819            this.push_rendered_message(message.id, rendered_message);
 820
 821            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 822                this.render_tool_use_markdown(
 823                    tool_use.id.clone(),
 824                    tool_use.ui_text.clone(),
 825                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 826                    tool_use.status.text(),
 827                    cx,
 828                );
 829            }
 830        }
 831
 832        if let Some(subscription) = workspace_subscription {
 833            this._subscriptions.push(subscription);
 834        }
 835
 836        this
 837    }
 838
 839    pub fn thread(&self) -> &Entity<Thread> {
 840        &self.thread
 841    }
 842
 843    pub fn is_empty(&self) -> bool {
 844        self.messages.is_empty()
 845    }
 846
 847    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 848        self.thread.read(cx).summary()
 849    }
 850
 851    pub fn regenerate_summary(&self, cx: &mut App) {
 852        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 853    }
 854
 855    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 856        self.last_error.take();
 857        self.thread.update(cx, |thread, cx| {
 858            thread.cancel_last_completion(Some(window.window_handle()), cx)
 859        })
 860    }
 861
 862    pub fn last_error(&self) -> Option<ThreadError> {
 863        self.last_error.clone()
 864    }
 865
 866    pub fn clear_last_error(&mut self) {
 867        self.last_error.take();
 868    }
 869
 870    /// Returns the editing message id and the estimated token count in the content
 871    pub fn editing_message_id(&self) -> Option<(MessageId, u64)> {
 872        self.editing_message
 873            .as_ref()
 874            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 875    }
 876
 877    pub fn context_store(&self) -> &Entity<ContextStore> {
 878        &self.context_store
 879    }
 880
 881    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 882        &self.thread_store
 883    }
 884
 885    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 886        &self.text_thread_store
 887    }
 888
 889    fn push_rendered_message(&mut self, id: MessageId, rendered_message: RenderedMessage) {
 890        let old_len = self.messages.len();
 891        self.messages.push(id);
 892        self.list_state.splice(old_len..old_len, 1);
 893        self.rendered_messages_by_id.insert(id, rendered_message);
 894    }
 895
 896    fn deleted_message(&mut self, id: &MessageId) {
 897        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 898            return;
 899        };
 900        self.messages.remove(index);
 901        self.list_state.splice(index..index + 1, 0);
 902        self.rendered_messages_by_id.remove(id);
 903    }
 904
 905    fn render_tool_use_markdown(
 906        &mut self,
 907        tool_use_id: LanguageModelToolUseId,
 908        tool_label: impl Into<SharedString>,
 909        tool_input: &str,
 910        tool_output: SharedString,
 911        cx: &mut Context<Self>,
 912    ) {
 913        let rendered = self
 914            .rendered_tool_uses
 915            .entry(tool_use_id)
 916            .or_insert_with(|| RenderedToolUse {
 917                label: cx.new(|cx| {
 918                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 919                }),
 920                input: cx.new(|cx| {
 921                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 922                }),
 923                output: cx.new(|cx| {
 924                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 925                }),
 926            });
 927
 928        rendered.label.update(cx, |this, cx| {
 929            this.replace(tool_label, cx);
 930        });
 931        rendered.input.update(cx, |this, cx| {
 932            this.replace(
 933                MarkdownCodeBlock {
 934                    tag: "json",
 935                    text: tool_input,
 936                }
 937                .to_string(),
 938                cx,
 939            );
 940        });
 941        rendered.output.update(cx, |this, cx| {
 942            this.replace(tool_output, cx);
 943        });
 944    }
 945
 946    fn handle_thread_event(
 947        &mut self,
 948        _thread: &Entity<Thread>,
 949        event: &ThreadEvent,
 950        window: &mut Window,
 951        cx: &mut Context<Self>,
 952    ) {
 953        match event {
 954            ThreadEvent::CancelEditing => {
 955                if self.editing_message.is_some() {
 956                    self.cancel_editing_message(&menu::Cancel, window, cx);
 957                }
 958            }
 959            ThreadEvent::ShowError(error) => {
 960                self.last_error = Some(error.clone());
 961            }
 962            ThreadEvent::NewRequest => {
 963                cx.notify();
 964            }
 965            ThreadEvent::CompletionCanceled => {
 966                self.thread.update(cx, |thread, cx| {
 967                    thread.project().update(cx, |project, cx| {
 968                        project.set_agent_location(None, cx);
 969                    })
 970                });
 971                self.workspace
 972                    .update(cx, |workspace, cx| {
 973                        if workspace.is_being_followed(CollaboratorId::Agent) {
 974                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 975                        }
 976                    })
 977                    .ok();
 978                cx.notify();
 979            }
 980            ThreadEvent::StreamedCompletion
 981            | ThreadEvent::SummaryGenerated
 982            | ThreadEvent::SummaryChanged => {
 983                self.save_thread(cx);
 984            }
 985            ThreadEvent::Stopped(reason) => {
 986                match reason {
 987                    Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 988                        let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
 989                        self.notify_with_sound(
 990                            if used_tools {
 991                                "Finished running tools"
 992                            } else {
 993                                "New message"
 994                            },
 995                            IconName::ZedAssistant,
 996                            window,
 997                            cx,
 998                        );
 999                    }
1000                    Ok(StopReason::ToolUse) => {
1001                        // Don't notify for intermediate tool use
1002                    }
1003                    Ok(StopReason::Refusal) => {
1004                        self.notify_with_sound(
1005                            "Language model refused to respond",
1006                            IconName::Warning,
1007                            window,
1008                            cx,
1009                        );
1010                    }
1011                    Err(error) => {
1012                        self.notify_with_sound(
1013                            "Agent stopped due to an error",
1014                            IconName::Warning,
1015                            window,
1016                            cx,
1017                        );
1018
1019                        let error_message = error
1020                            .chain()
1021                            .map(|err| err.to_string())
1022                            .collect::<Vec<_>>()
1023                            .join("\n");
1024                        self.last_error = Some(ThreadError::Message {
1025                            header: "Error".into(),
1026                            message: error_message.into(),
1027                        });
1028                    }
1029                }
1030            }
1031            ThreadEvent::ToolConfirmationNeeded => {
1032                self.notify_with_sound("Waiting for tool confirmation", IconName::Info, window, cx);
1033            }
1034            ThreadEvent::ToolUseLimitReached => {
1035                self.notify_with_sound(
1036                    "Consecutive tool use limit reached.",
1037                    IconName::Warning,
1038                    window,
1039                    cx,
1040                );
1041            }
1042            ThreadEvent::StreamedAssistantText(message_id, text) => {
1043                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(message_id) {
1044                    rendered_message.append_text(text, cx);
1045                }
1046            }
1047            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1048                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(message_id) {
1049                    rendered_message.append_thinking(text, cx);
1050                }
1051            }
1052            ThreadEvent::MessageAdded(message_id) => {
1053                self.clear_last_error();
1054                if let Some(rendered_message) = self.thread.update(cx, |thread, cx| {
1055                    thread.message(*message_id).map(|message| {
1056                        RenderedMessage::from_segments(
1057                            &message.segments,
1058                            self.language_registry.clone(),
1059                            cx,
1060                        )
1061                    })
1062                }) {
1063                    self.push_rendered_message(*message_id, rendered_message);
1064                }
1065
1066                self.save_thread(cx);
1067                cx.notify();
1068            }
1069            ThreadEvent::MessageEdited(message_id) => {
1070                self.clear_last_error();
1071                if let Some(index) = self.messages.iter().position(|id| id == message_id)
1072                    && let Some(rendered_message) = self.thread.update(cx, |thread, cx| {
1073                        thread.message(*message_id).map(|message| {
1074                            let mut rendered_message = RenderedMessage {
1075                                language_registry: self.language_registry.clone(),
1076                                segments: Vec::with_capacity(message.segments.len()),
1077                            };
1078                            for segment in &message.segments {
1079                                rendered_message.push_segment(segment, cx);
1080                            }
1081                            rendered_message
1082                        })
1083                    })
1084                {
1085                    self.list_state.splice(index..index + 1, 1);
1086                    self.rendered_messages_by_id
1087                        .insert(*message_id, rendered_message);
1088                    self.scroll_to_bottom(cx);
1089                    self.save_thread(cx);
1090                    cx.notify();
1091                }
1092            }
1093            ThreadEvent::MessageDeleted(message_id) => {
1094                self.deleted_message(message_id);
1095                self.save_thread(cx);
1096                cx.notify();
1097            }
1098            ThreadEvent::UsePendingTools { tool_uses } => {
1099                for tool_use in tool_uses {
1100                    self.render_tool_use_markdown(
1101                        tool_use.id.clone(),
1102                        tool_use.ui_text.clone(),
1103                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1104                        "".into(),
1105                        cx,
1106                    );
1107                }
1108            }
1109            ThreadEvent::StreamedToolUse {
1110                tool_use_id,
1111                ui_text,
1112                input,
1113            } => {
1114                self.render_tool_use_markdown(
1115                    tool_use_id.clone(),
1116                    ui_text.clone(),
1117                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1118                    "".into(),
1119                    cx,
1120                );
1121            }
1122            ThreadEvent::ToolFinished {
1123                pending_tool_use, ..
1124            } => {
1125                if let Some(tool_use) = pending_tool_use {
1126                    self.render_tool_use_markdown(
1127                        tool_use.id.clone(),
1128                        tool_use.ui_text.clone(),
1129                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
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            ThreadEvent::CheckpointChanged => cx.notify(),
1140            ThreadEvent::ReceivedTextChunk => {}
1141            ThreadEvent::InvalidToolInput {
1142                tool_use_id,
1143                ui_text,
1144                invalid_input_json,
1145            } => {
1146                self.render_tool_use_markdown(
1147                    tool_use_id.clone(),
1148                    ui_text,
1149                    invalid_input_json,
1150                    self.thread
1151                        .read(cx)
1152                        .output_for_tool(tool_use_id)
1153                        .map(|output| output.clone().into())
1154                        .unwrap_or("".into()),
1155                    cx,
1156                );
1157            }
1158            ThreadEvent::MissingToolUse {
1159                tool_use_id,
1160                ui_text,
1161            } => {
1162                self.render_tool_use_markdown(
1163                    tool_use_id.clone(),
1164                    ui_text,
1165                    "",
1166                    self.thread
1167                        .read(cx)
1168                        .output_for_tool(tool_use_id)
1169                        .map(|output| output.clone().into())
1170                        .unwrap_or("".into()),
1171                    cx,
1172                );
1173            }
1174            ThreadEvent::ProfileChanged => {
1175                self.save_thread(cx);
1176                cx.notify();
1177            }
1178        }
1179    }
1180
1181    fn handle_rules_loading_error(
1182        &mut self,
1183        _thread_store: Entity<ThreadStore>,
1184        error: &RulesLoadingError,
1185        cx: &mut Context<Self>,
1186    ) {
1187        self.last_error = Some(ThreadError::Message {
1188            header: "Error loading rules file".into(),
1189            message: error.message.clone(),
1190        });
1191        cx.notify();
1192    }
1193
1194    fn play_notification_sound(&self, window: &Window, cx: &mut App) {
1195        let settings = AgentSettings::get_global(cx);
1196        if settings.play_sound_when_agent_done && !window.is_window_active() {
1197            Audio::play_sound(Sound::AgentDone, cx);
1198        }
1199    }
1200
1201    fn show_notification(
1202        &mut self,
1203        caption: impl Into<SharedString>,
1204        icon: IconName,
1205        window: &mut Window,
1206        cx: &mut Context<ActiveThread>,
1207    ) {
1208        if window.is_window_active() || !self.notifications.is_empty() {
1209            return;
1210        }
1211
1212        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1213
1214        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1215            NotifyWhenAgentWaiting::PrimaryScreen => {
1216                if let Some(primary) = cx.primary_display() {
1217                    self.pop_up(icon, caption.into(), title, window, primary, cx);
1218                }
1219            }
1220            NotifyWhenAgentWaiting::AllScreens => {
1221                let caption = caption.into();
1222                for screen in cx.displays() {
1223                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1224                }
1225            }
1226            NotifyWhenAgentWaiting::Never => {
1227                // Don't show anything
1228            }
1229        }
1230    }
1231
1232    fn notify_with_sound(
1233        &mut self,
1234        caption: impl Into<SharedString>,
1235        icon: IconName,
1236        window: &mut Window,
1237        cx: &mut Context<ActiveThread>,
1238    ) {
1239        self.play_notification_sound(window, cx);
1240        self.show_notification(caption, icon, window, cx);
1241    }
1242
1243    fn pop_up(
1244        &mut self,
1245        icon: IconName,
1246        caption: SharedString,
1247        title: SharedString,
1248        window: &mut Window,
1249        screen: Rc<dyn PlatformDisplay>,
1250        cx: &mut Context<'_, ActiveThread>,
1251    ) {
1252        let options = AgentNotification::window_options(screen, cx);
1253
1254        let project_name = self.workspace.upgrade().and_then(|workspace| {
1255            workspace
1256                .read(cx)
1257                .project()
1258                .read(cx)
1259                .visible_worktrees(cx)
1260                .next()
1261                .map(|worktree| worktree.read(cx).root_name().to_string())
1262        });
1263
1264        if let Some(screen_window) = cx
1265            .open_window(options, |_, cx| {
1266                cx.new(|_| {
1267                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1268                })
1269            })
1270            .log_err()
1271            && let Some(pop_up) = screen_window.entity(cx).log_err()
1272        {
1273            self.notification_subscriptions
1274                .entry(screen_window)
1275                .or_insert_with(Vec::new)
1276                .push(cx.subscribe_in(&pop_up, window, {
1277                    |this, _, event, window, cx| match event {
1278                        AgentNotificationEvent::Accepted => {
1279                            let handle = window.window_handle();
1280                            cx.activate(true);
1281
1282                            let workspace_handle = this.workspace.clone();
1283
1284                            // If there are multiple Zed windows, activate the correct one.
1285                            cx.defer(move |cx| {
1286                                handle
1287                                    .update(cx, |_view, window, _cx| {
1288                                        window.activate_window();
1289
1290                                        if let Some(workspace) = workspace_handle.upgrade() {
1291                                            workspace.update(_cx, |workspace, cx| {
1292                                                workspace.focus_panel::<AgentPanel>(window, cx);
1293                                            });
1294                                        }
1295                                    })
1296                                    .log_err();
1297                            });
1298
1299                            this.dismiss_notifications(cx);
1300                        }
1301                        AgentNotificationEvent::Dismissed => {
1302                            this.dismiss_notifications(cx);
1303                        }
1304                    }
1305                }));
1306
1307            self.notifications.push(screen_window);
1308
1309            // If the user manually refocuses the original window, dismiss the popup.
1310            self.notification_subscriptions
1311                .entry(screen_window)
1312                .or_insert_with(Vec::new)
1313                .push({
1314                    let pop_up_weak = pop_up.downgrade();
1315
1316                    cx.observe_window_activation(window, move |_, window, cx| {
1317                        if window.is_window_active()
1318                            && let Some(pop_up) = pop_up_weak.upgrade()
1319                        {
1320                            pop_up.update(cx, |_, cx| {
1321                                cx.emit(AgentNotificationEvent::Dismissed);
1322                            });
1323                        }
1324                    })
1325                });
1326        }
1327    }
1328
1329    /// Spawns a task to save the active thread.
1330    ///
1331    /// Only one task to save the thread will be in flight at a time.
1332    fn save_thread(&mut self, cx: &mut Context<Self>) {
1333        let thread = self.thread.clone();
1334        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1335            let task = this
1336                .update(cx, |this, cx| {
1337                    this.thread_store
1338                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1339                })
1340                .ok();
1341
1342            if let Some(task) = task {
1343                task.await.log_err();
1344            }
1345        }));
1346    }
1347
1348    fn start_editing_message(
1349        &mut self,
1350        message_id: MessageId,
1351        message_text: impl Into<Arc<str>>,
1352        message_creases: &[MessageCrease],
1353        window: &mut Window,
1354        cx: &mut Context<Self>,
1355    ) {
1356        let editor = crate::message_editor::create_editor(
1357            self.workspace.clone(),
1358            self.context_store.downgrade(),
1359            self.thread_store.downgrade(),
1360            self.text_thread_store.downgrade(),
1361            EDIT_PREVIOUS_MESSAGE_MIN_LINES,
1362            None,
1363            window,
1364            cx,
1365        );
1366        editor.update(cx, |editor, cx| {
1367            editor.set_text(message_text, window, cx);
1368            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1369            editor.focus_handle(cx).focus(window);
1370            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1371        });
1372        let buffer_edited_subscription =
1373            cx.subscribe(&editor, |this, _, event: &EditorEvent, cx| {
1374                if event == &EditorEvent::BufferEdited {
1375                    this.update_editing_message_token_count(true, cx);
1376                }
1377            });
1378
1379        let context_picker_menu_handle = PopoverMenuHandle::default();
1380        let context_strip = cx.new(|cx| {
1381            ContextStrip::new(
1382                self.context_store.clone(),
1383                self.workspace.clone(),
1384                Some(self.thread_store.downgrade()),
1385                Some(self.text_thread_store.downgrade()),
1386                context_picker_menu_handle.clone(),
1387                SuggestContextKind::File,
1388                ModelUsageContext::Thread(self.thread.clone()),
1389                window,
1390                cx,
1391            )
1392        });
1393
1394        let context_strip_subscription =
1395            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1396
1397        self.editing_message = Some((
1398            message_id,
1399            EditingMessageState {
1400                editor: editor.clone(),
1401                context_strip,
1402                context_picker_menu_handle,
1403                last_estimated_token_count: None,
1404                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1405                _update_token_count_task: None,
1406            },
1407        ));
1408        self.update_editing_message_token_count(false, cx);
1409        cx.notify();
1410    }
1411
1412    fn handle_context_strip_event(
1413        &mut self,
1414        _context_strip: &Entity<ContextStrip>,
1415        event: &ContextStripEvent,
1416        window: &mut Window,
1417        cx: &mut Context<Self>,
1418    ) {
1419        if let Some((_, state)) = self.editing_message.as_ref() {
1420            match event {
1421                ContextStripEvent::PickerDismissed
1422                | ContextStripEvent::BlurredEmpty
1423                | ContextStripEvent::BlurredDown => {
1424                    let editor_focus_handle = state.editor.focus_handle(cx);
1425                    window.focus(&editor_focus_handle);
1426                }
1427                ContextStripEvent::BlurredUp => {}
1428            }
1429        }
1430    }
1431
1432    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1433        let Some((message_id, state)) = self.editing_message.as_mut() else {
1434            return;
1435        };
1436
1437        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1438        state._update_token_count_task.take();
1439
1440        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1441            state.last_estimated_token_count.take();
1442            return;
1443        };
1444
1445        let editor = state.editor.clone();
1446        let thread = self.thread.clone();
1447        let message_id = *message_id;
1448
1449        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1450            if debounce {
1451                cx.background_executor()
1452                    .timer(Duration::from_millis(200))
1453                    .await;
1454            }
1455
1456            let token_count = if let Some(task) = cx
1457                .update(|cx| {
1458                    let Some(message) = thread.read(cx).message(message_id) else {
1459                        log::error!("Message that was being edited no longer exists");
1460                        return None;
1461                    };
1462                    let message_text = editor.read(cx).text(cx);
1463
1464                    if message_text.is_empty() && message.loaded_context.is_empty() {
1465                        return None;
1466                    }
1467
1468                    let mut request_message = LanguageModelRequestMessage {
1469                        role: language_model::Role::User,
1470                        content: Vec::new(),
1471                        cache: false,
1472                    };
1473
1474                    message
1475                        .loaded_context
1476                        .add_to_request_message(&mut request_message);
1477
1478                    if !message_text.is_empty() {
1479                        request_message
1480                            .content
1481                            .push(MessageContent::Text(message_text));
1482                    }
1483
1484                    let request = language_model::LanguageModelRequest {
1485                        thread_id: None,
1486                        prompt_id: None,
1487                        intent: None,
1488                        mode: None,
1489                        messages: vec![request_message],
1490                        tools: vec![],
1491                        tool_choice: None,
1492                        stop: vec![],
1493                        temperature: AgentSettings::temperature_for_model(
1494                            &configured_model.model,
1495                            cx,
1496                        ),
1497                        thinking_allowed: true,
1498                    };
1499
1500                    Some(configured_model.model.count_tokens(request, cx))
1501                })
1502                .ok()
1503                .flatten()
1504            {
1505                task.await.log_err()
1506            } else {
1507                Some(0)
1508            };
1509
1510            if let Some(token_count) = token_count {
1511                this.update(cx, |this, cx| {
1512                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1513                        return;
1514                    };
1515
1516                    state.last_estimated_token_count = Some(token_count);
1517                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1518                })
1519                .ok();
1520            };
1521        }));
1522    }
1523
1524    fn toggle_context_picker(
1525        &mut self,
1526        _: &crate::ToggleContextPicker,
1527        window: &mut Window,
1528        cx: &mut Context<Self>,
1529    ) {
1530        if let Some((_, state)) = self.editing_message.as_mut() {
1531            let handle = state.context_picker_menu_handle.clone();
1532            window.defer(cx, move |window, cx| {
1533                handle.toggle(window, cx);
1534            });
1535        }
1536    }
1537
1538    fn remove_all_context(
1539        &mut self,
1540        _: &crate::RemoveAllContext,
1541        _window: &mut Window,
1542        cx: &mut Context<Self>,
1543    ) {
1544        self.context_store.update(cx, |store, cx| store.clear(cx));
1545        cx.notify();
1546    }
1547
1548    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1549        if let Some((_, state)) = self.editing_message.as_mut() {
1550            if state.context_picker_menu_handle.is_deployed() {
1551                cx.propagate();
1552            } else {
1553                state.context_strip.focus_handle(cx).focus(window);
1554            }
1555        }
1556    }
1557
1558    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1559        attach_pasted_images_as_context(&self.context_store, cx);
1560    }
1561
1562    fn cancel_editing_message(
1563        &mut self,
1564        _: &menu::Cancel,
1565        window: &mut Window,
1566        cx: &mut Context<Self>,
1567    ) {
1568        self.editing_message.take();
1569        cx.notify();
1570
1571        if let Some(workspace) = self.workspace.upgrade() {
1572            workspace.update(cx, |workspace, cx| {
1573                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1574                    panel.focus_handle(cx).focus(window);
1575                }
1576            });
1577        }
1578    }
1579
1580    fn confirm_editing_message(
1581        &mut self,
1582        _: &menu::Confirm,
1583        window: &mut Window,
1584        cx: &mut Context<Self>,
1585    ) {
1586        let Some((message_id, state)) = self.editing_message.take() else {
1587            return;
1588        };
1589
1590        let Some(model) = self
1591            .thread
1592            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1593        else {
1594            return;
1595        };
1596
1597        let edited_text = state.editor.read(cx).text(cx);
1598
1599        let creases = state.editor.update(cx, extract_message_creases);
1600
1601        let new_context = self
1602            .context_store
1603            .read(cx)
1604            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1605
1606        let project = self.thread.read(cx).project().clone();
1607        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1608
1609        let git_store = project.read(cx).git_store().clone();
1610        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1611
1612        let load_context_task = context::load_context(new_context, &project, &prompt_store, cx);
1613        self._load_edited_message_context_task =
1614            Some(cx.spawn_in(window, async move |this, cx| {
1615                let (context, checkpoint) =
1616                    futures::future::join(load_context_task, checkpoint).await;
1617                let _ = this
1618                    .update_in(cx, |this, window, cx| {
1619                        this.thread.update(cx, |thread, cx| {
1620                            thread.edit_message(
1621                                message_id,
1622                                Role::User,
1623                                vec![MessageSegment::Text(edited_text)],
1624                                creases,
1625                                Some(context.loaded_context),
1626                                checkpoint.ok(),
1627                                cx,
1628                            );
1629                            for message_id in this.messages_after(message_id) {
1630                                thread.delete_message(*message_id, cx);
1631                            }
1632                        });
1633
1634                        this.thread.update(cx, |thread, cx| {
1635                            thread.advance_prompt_id();
1636                            thread.cancel_last_completion(Some(window.window_handle()), cx);
1637                            thread.send_to_model(
1638                                model.model,
1639                                CompletionIntent::UserPrompt,
1640                                Some(window.window_handle()),
1641                                cx,
1642                            );
1643                        });
1644                        this._load_edited_message_context_task = None;
1645                        cx.notify();
1646                    })
1647                    .log_err();
1648            }));
1649
1650        if let Some(workspace) = self.workspace.upgrade() {
1651            workspace.update(cx, |workspace, cx| {
1652                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1653                    panel.focus_handle(cx).focus(window);
1654                }
1655            });
1656        }
1657    }
1658
1659    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1660        self.messages
1661            .iter()
1662            .position(|id| *id == message_id)
1663            .map(|index| &self.messages[index + 1..])
1664            .unwrap_or(&[])
1665    }
1666
1667    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1668        self.cancel_editing_message(&menu::Cancel, window, cx);
1669    }
1670
1671    fn handle_regenerate_click(
1672        &mut self,
1673        _: &ClickEvent,
1674        window: &mut Window,
1675        cx: &mut Context<Self>,
1676    ) {
1677        self.confirm_editing_message(&menu::Confirm, window, cx);
1678    }
1679
1680    fn handle_feedback_click(
1681        &mut self,
1682        message_id: MessageId,
1683        feedback: ThreadFeedback,
1684        window: &mut Window,
1685        cx: &mut Context<Self>,
1686    ) {
1687        let report = self.thread.update(cx, |thread, cx| {
1688            thread.report_message_feedback(message_id, feedback, cx)
1689        });
1690
1691        cx.spawn(async move |this, cx| {
1692            report.await?;
1693            this.update(cx, |_this, cx| cx.notify())
1694        })
1695        .detach_and_log_err(cx);
1696
1697        match feedback {
1698            ThreadFeedback::Positive => {
1699                self.open_feedback_editors.remove(&message_id);
1700            }
1701            ThreadFeedback::Negative => {
1702                self.handle_show_feedback_comments(message_id, window, cx);
1703            }
1704        }
1705    }
1706
1707    fn handle_show_feedback_comments(
1708        &mut self,
1709        message_id: MessageId,
1710        window: &mut Window,
1711        cx: &mut Context<Self>,
1712    ) {
1713        let buffer = cx.new(|cx| {
1714            let empty_string = String::new();
1715            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1716        });
1717
1718        let editor = cx.new(|cx| {
1719            let mut editor = Editor::new(
1720                editor::EditorMode::AutoHeight {
1721                    min_lines: 1,
1722                    max_lines: Some(4),
1723                },
1724                buffer,
1725                None,
1726                window,
1727                cx,
1728            );
1729            editor.set_placeholder_text(
1730                "What went wrong? Share your feedback so we can improve.",
1731                cx,
1732            );
1733            editor
1734        });
1735
1736        editor.read(cx).focus_handle(cx).focus(window);
1737        self.open_feedback_editors.insert(message_id, editor);
1738        cx.notify();
1739    }
1740
1741    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1742        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1743            return;
1744        };
1745
1746        let report_task = self.thread.update(cx, |thread, cx| {
1747            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1748        });
1749
1750        let comments = editor.read(cx).text(cx);
1751        if !comments.is_empty() {
1752            let thread_id = self.thread.read(cx).id().clone();
1753            let comments_value = String::from(comments.as_str());
1754
1755            let message_content = self
1756                .thread
1757                .read(cx)
1758                .message(message_id)
1759                .map(|msg| msg.to_message_content())
1760                .unwrap_or_default();
1761
1762            telemetry::event!(
1763                "Assistant Thread Feedback Comments",
1764                thread_id,
1765                message_id = message_id.as_usize(),
1766                message_content,
1767                comments = comments_value
1768            );
1769
1770            self.open_feedback_editors.remove(&message_id);
1771
1772            cx.spawn(async move |this, cx| {
1773                report_task.await?;
1774                this.update(cx, |_this, cx| cx.notify())
1775            })
1776            .detach_and_log_err(cx);
1777        }
1778    }
1779
1780    fn render_edit_message_editor(
1781        &self,
1782        state: &EditingMessageState,
1783        _window: &mut Window,
1784        cx: &Context<Self>,
1785    ) -> impl IntoElement {
1786        let settings = ThemeSettings::get_global(cx);
1787        let font_size = TextSize::Small
1788            .rems(cx)
1789            .to_pixels(settings.agent_font_size(cx));
1790        let line_height = font_size * 1.75;
1791
1792        let colors = cx.theme().colors();
1793
1794        let text_style = TextStyle {
1795            color: colors.text,
1796            font_family: settings.buffer_font.family.clone(),
1797            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1798            font_features: settings.buffer_font.features.clone(),
1799            font_size: font_size.into(),
1800            line_height: line_height.into(),
1801            ..Default::default()
1802        };
1803
1804        v_flex()
1805            .key_context("EditMessageEditor")
1806            .on_action(cx.listener(Self::toggle_context_picker))
1807            .on_action(cx.listener(Self::remove_all_context))
1808            .on_action(cx.listener(Self::move_up))
1809            .on_action(cx.listener(Self::cancel_editing_message))
1810            .on_action(cx.listener(Self::confirm_editing_message))
1811            .capture_action(cx.listener(Self::paste))
1812            .min_h_6()
1813            .w_full()
1814            .flex_grow()
1815            .gap_2()
1816            .child(state.context_strip.clone())
1817            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1818                &state.editor,
1819                EditorStyle {
1820                    background: colors.editor_background,
1821                    local_player: cx.theme().players().local(),
1822                    text: text_style,
1823                    syntax: cx.theme().syntax().clone(),
1824                    ..Default::default()
1825                },
1826            )))
1827    }
1828
1829    fn render_message(
1830        &mut self,
1831        ix: usize,
1832        window: &mut Window,
1833        cx: &mut Context<Self>,
1834    ) -> AnyElement {
1835        let message_id = self.messages[ix];
1836        let workspace = self.workspace.clone();
1837        let thread = self.thread.read(cx);
1838
1839        let is_first_message = ix == 0;
1840        let is_last_message = ix == self.messages.len() - 1;
1841
1842        let Some(message) = thread.message(message_id) else {
1843            return Empty.into_any();
1844        };
1845
1846        let is_generating = thread.is_generating();
1847        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1848
1849        let loading_dots = (is_generating && is_last_message).then(|| {
1850            h_flex()
1851                .h_8()
1852                .my_3()
1853                .mx_5()
1854                .when(is_generating_stale || message.is_hidden, |this| {
1855                    this.child(LoadingLabel::new("").size(LabelSize::Small))
1856                })
1857        });
1858
1859        if message.is_hidden {
1860            return div().children(loading_dots).into_any();
1861        }
1862
1863        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1864            return Empty.into_any();
1865        };
1866
1867        // Get all the data we need from thread before we start using it in closures
1868        let checkpoint = thread.checkpoint_for_message(message_id);
1869        let configured_model = thread.configured_model().map(|m| m.model);
1870        let added_context = thread
1871            .context_for_message(message_id)
1872            .map(|context| AddedContext::new_attached(context, configured_model.as_ref(), cx))
1873            .collect::<Vec<_>>();
1874
1875        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1876        let has_tool_uses = !tool_uses.is_empty();
1877
1878        let editing_message_state = self
1879            .editing_message
1880            .as_ref()
1881            .filter(|(id, _)| *id == message_id)
1882            .map(|(_, state)| state);
1883
1884        let (editor_bg_color, panel_bg) = {
1885            let colors = cx.theme().colors();
1886            (colors.editor_background, colors.panel_background)
1887        };
1888
1889        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileMarkdown)
1890            .shape(ui::IconButtonShape::Square)
1891            .icon_size(IconSize::Small)
1892            .icon_color(Color::Ignored)
1893            .tooltip(Tooltip::text("Open Thread as Markdown"))
1894            .on_click({
1895                let thread = self.thread.clone();
1896                let workspace = self.workspace.clone();
1897                move |_, window, cx| {
1898                    if let Some(workspace) = workspace.upgrade() {
1899                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1900                            .detach_and_log_err(cx);
1901                    }
1902                }
1903            });
1904
1905        let scroll_to_top = IconButton::new(("scroll_to_top", ix), IconName::ArrowUp)
1906            .shape(ui::IconButtonShape::Square)
1907            .icon_size(IconSize::Small)
1908            .icon_color(Color::Ignored)
1909            .tooltip(Tooltip::text("Scroll To Top"))
1910            .on_click(cx.listener(move |this, _, _, cx| {
1911                this.scroll_to_top(cx);
1912            }));
1913
1914        let show_feedback = thread.is_turn_end(ix);
1915        let feedback_container = h_flex()
1916            .group("feedback_container")
1917            .mt_1()
1918            .py_2()
1919            .px(RESPONSE_PADDING_X)
1920            .mr_1()
1921            .gap_1()
1922            .opacity(0.4)
1923            .hover(|style| style.opacity(1.))
1924            .gap_1p5()
1925            .flex_wrap()
1926            .justify_end();
1927        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1928            Some(feedback) => feedback_container
1929                .child(
1930                    div().visible_on_hover("feedback_container").child(
1931                        Label::new(match feedback {
1932                            ThreadFeedback::Positive => "Thanks for your feedback!",
1933                            ThreadFeedback::Negative => {
1934                                "We appreciate your feedback and will use it to improve."
1935                            }
1936                        })
1937                    .color(Color::Muted)
1938                    .size(LabelSize::XSmall)
1939                    .truncate())
1940                )
1941                .child(
1942                    h_flex()
1943                        .child(
1944                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1945                                .shape(ui::IconButtonShape::Square)
1946                                .icon_size(IconSize::Small)
1947                                .icon_color(match feedback {
1948                                    ThreadFeedback::Positive => Color::Accent,
1949                                    ThreadFeedback::Negative => Color::Ignored,
1950                                })
1951                                .tooltip(Tooltip::text("Helpful Response"))
1952                                .on_click(cx.listener(move |this, _, window, cx| {
1953                                    this.handle_feedback_click(
1954                                        message_id,
1955                                        ThreadFeedback::Positive,
1956                                        window,
1957                                        cx,
1958                                    );
1959                                })),
1960                        )
1961                        .child(
1962                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1963                                .shape(ui::IconButtonShape::Square)
1964                                .icon_size(IconSize::Small)
1965                                .icon_color(match feedback {
1966                                    ThreadFeedback::Positive => Color::Ignored,
1967                                    ThreadFeedback::Negative => Color::Accent,
1968                                })
1969                                .tooltip(Tooltip::text("Not Helpful"))
1970                                .on_click(cx.listener(move |this, _, window, cx| {
1971                                    this.handle_feedback_click(
1972                                        message_id,
1973                                        ThreadFeedback::Negative,
1974                                        window,
1975                                        cx,
1976                                    );
1977                                })),
1978                        )
1979                        .child(open_as_markdown),
1980                )
1981                .into_any_element(),
1982            None if AgentSettings::get_global(cx).enable_feedback =>
1983                feedback_container
1984                .child(
1985                    div().visible_on_hover("feedback_container").child(
1986                        Label::new(
1987                            "Rating the thread sends all of your current conversation to the Zed team.",
1988                        )
1989                        .color(Color::Muted)
1990                    .size(LabelSize::XSmall)
1991                    .truncate())
1992                )
1993                .child(
1994                    h_flex()
1995                        .child(
1996                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1997                                .shape(ui::IconButtonShape::Square)
1998                                .icon_size(IconSize::Small)
1999                                .icon_color(Color::Ignored)
2000                                .tooltip(Tooltip::text("Helpful Response"))
2001                                .on_click(cx.listener(move |this, _, window, cx| {
2002                                    this.handle_feedback_click(
2003                                        message_id,
2004                                        ThreadFeedback::Positive,
2005                                        window,
2006                                        cx,
2007                                    );
2008                                })),
2009                        )
2010                        .child(
2011                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
2012                                .shape(ui::IconButtonShape::Square)
2013                                .icon_size(IconSize::Small)
2014                                .icon_color(Color::Ignored)
2015                                .tooltip(Tooltip::text("Not Helpful"))
2016                                .on_click(cx.listener(move |this, _, window, cx| {
2017                                    this.handle_feedback_click(
2018                                        message_id,
2019                                        ThreadFeedback::Negative,
2020                                        window,
2021                                        cx,
2022                                    );
2023                                })),
2024                        )
2025                        .child(open_as_markdown)
2026                        .child(scroll_to_top),
2027                )
2028                .into_any_element(),
2029            None => feedback_container
2030                .child(h_flex()
2031                    .child(open_as_markdown))
2032                    .child(scroll_to_top)
2033                .into_any_element(),
2034        };
2035
2036        let message_is_empty = message.should_display_content();
2037        let has_content = !message_is_empty || !added_context.is_empty();
2038
2039        let message_content = has_content.then(|| {
2040            if let Some(state) = editing_message_state.as_ref() {
2041                self.render_edit_message_editor(state, window, cx)
2042                    .into_any_element()
2043            } else {
2044                v_flex()
2045                    .w_full()
2046                    .gap_1()
2047                    .when(!added_context.is_empty(), |parent| {
2048                        parent.child(h_flex().flex_wrap().gap_1().children(
2049                            added_context.into_iter().map(|added_context| {
2050                                let context = added_context.handle.clone();
2051                                ContextPill::added(added_context, false, false, None).on_click(
2052                                    Rc::new(cx.listener({
2053                                        let workspace = workspace.clone();
2054                                        move |_, _, window, cx| {
2055                                            if let Some(workspace) = workspace.upgrade() {
2056                                                open_context(&context, workspace, window, cx);
2057                                                cx.notify();
2058                                            }
2059                                        }
2060                                    })),
2061                                )
2062                            }),
2063                        ))
2064                    })
2065                    .when(!message_is_empty, |parent| {
2066                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
2067                            message_id,
2068                            rendered_message,
2069                            has_tool_uses,
2070                            workspace.clone(),
2071                            window,
2072                            cx,
2073                        )))
2074                    })
2075                    .into_any_element()
2076            }
2077        });
2078
2079        let styled_message = if message.ui_only {
2080            self.render_ui_notification(message_content, ix, cx)
2081        } else {
2082            match message.role {
2083                Role::User => {
2084                    let colors = cx.theme().colors();
2085                    v_flex()
2086                        .id(("message-container", ix))
2087                        .pt_2()
2088                        .pl_2()
2089                        .pr_2p5()
2090                        .pb_4()
2091                        .child(
2092                            v_flex()
2093                                .id(("user-message", ix))
2094                                .bg(editor_bg_color)
2095                                .rounded_lg()
2096                                .shadow_md()
2097                                .border_1()
2098                                .border_color(colors.border)
2099                                .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2100                                .child(
2101                                    v_flex()
2102                                        .p_2p5()
2103                                        .gap_1()
2104                                        .children(message_content)
2105                                        .when_some(editing_message_state, |this, state| {
2106                                            let focus_handle = state.editor.focus_handle(cx);
2107
2108                                            this.child(
2109                                                h_flex()
2110                                                    .w_full()
2111                                                    .gap_1()
2112                                                    .justify_between()
2113                                                    .flex_wrap()
2114                                                    .child(
2115                                                        h_flex()
2116                                                            .gap_1p5()
2117                                                            .child(
2118                                                                div()
2119                                                                    .opacity(0.8)
2120                                                                    .child(
2121                                                                        Icon::new(IconName::Warning)
2122                                                                            .size(IconSize::Indicator)
2123                                                                            .color(Color::Warning)
2124                                                                    ),
2125                                                            )
2126                                                            .child(
2127                                                                Label::new("Editing will restart the thread from this point.")
2128                                                                    .color(Color::Muted)
2129                                                                    .size(LabelSize::XSmall),
2130                                                            ),
2131                                                    )
2132                                                    .child(
2133                                                        h_flex()
2134                                                            .gap_0p5()
2135                                                            .child(
2136                                                                IconButton::new(
2137                                                                    "cancel-edit-message",
2138                                                                    IconName::Close,
2139                                                                )
2140                                                                .shape(ui::IconButtonShape::Square)
2141                                                                .icon_color(Color::Error)
2142                                                                .icon_size(IconSize::Small)
2143                                                                .tooltip({
2144                                                                    let focus_handle = focus_handle.clone();
2145                                                                    move |window, cx| {
2146                                                                        Tooltip::for_action_in(
2147                                                                            "Cancel Edit",
2148                                                                            &menu::Cancel,
2149                                                                            &focus_handle,
2150                                                                            window,
2151                                                                            cx,
2152                                                                        )
2153                                                                    }
2154                                                                })
2155                                                                .on_click(cx.listener(Self::handle_cancel_click)),
2156                                                            )
2157                                                            .child(
2158                                                                IconButton::new(
2159                                                                    "confirm-edit-message",
2160                                                                    IconName::Return,
2161                                                                )
2162                                                                .disabled(state.editor.read(cx).is_empty(cx))
2163                                                                .shape(ui::IconButtonShape::Square)
2164                                                                .icon_color(Color::Muted)
2165                                                                .icon_size(IconSize::Small)
2166                                                                .tooltip({
2167                                                                    move |window, cx| {
2168                                                                        Tooltip::for_action_in(
2169                                                                            "Regenerate",
2170                                                                            &menu::Confirm,
2171                                                                            &focus_handle,
2172                                                                            window,
2173                                                                            cx,
2174                                                                        )
2175                                                                    }
2176                                                                })
2177                                                                .on_click(
2178                                                                    cx.listener(Self::handle_regenerate_click),
2179                                                                ),
2180                                                            ),
2181                                                    )
2182                                            )
2183                                        }),
2184                                )
2185                                .on_click(cx.listener({
2186                                    let message_creases = message.creases.clone();
2187                                    move |this, _, window, cx| {
2188                                        if let Some(message_text) =
2189                                            this.thread.read(cx).message(message_id).and_then(|message| {
2190                                                message.segments.first().and_then(|segment| {
2191                                                    match segment {
2192                                                        MessageSegment::Text(message_text) => {
2193                                                            Some(Into::<Arc<str>>::into(message_text.as_str()))
2194                                                        }
2195                                                        _ => {
2196                                                            None
2197                                                        }
2198                                                    }
2199                                                })
2200                                            })
2201                                        {
2202                                            this.start_editing_message(
2203                                                message_id,
2204                                                message_text,
2205                                                &message_creases,
2206                                                window,
2207                                                cx,
2208                                            );
2209                                        }
2210                                    }
2211                                })),
2212                        )
2213                }
2214                Role::Assistant => v_flex()
2215                    .id(("message-container", ix))
2216                    .px(RESPONSE_PADDING_X)
2217                    .gap_2()
2218                    .children(message_content)
2219                    .when(has_tool_uses, |parent| {
2220                        parent.children(tool_uses.into_iter().map(|tool_use| {
2221                            self.render_tool_use(tool_use, window, workspace.clone(), cx)
2222                        }))
2223                    }),
2224                Role::System => {
2225                    let colors = cx.theme().colors();
2226                    div().id(("message-container", ix)).py_1().px_2().child(
2227                        v_flex()
2228                            .bg(colors.editor_background)
2229                            .rounded_sm()
2230                            .child(div().p_4().children(message_content)),
2231                    )
2232                }
2233            }
2234        };
2235
2236        let after_editing_message = self
2237            .editing_message
2238            .as_ref()
2239            .is_some_and(|(editing_message_id, _)| message_id > *editing_message_id);
2240
2241        let backdrop = div()
2242            .id(("backdrop", ix))
2243            .size_full()
2244            .absolute()
2245            .inset_0()
2246            .bg(panel_bg)
2247            .opacity(0.8)
2248            .block_mouse_except_scroll()
2249            .on_click(cx.listener(Self::handle_cancel_click));
2250
2251        v_flex()
2252            .w_full()
2253            .map(|parent| {
2254                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2255                    let mut is_pending = false;
2256                    let mut error = None;
2257                    if let Some(last_restore_checkpoint) =
2258                        self.thread.read(cx).last_restore_checkpoint()
2259                        && last_restore_checkpoint.message_id() == message_id
2260                    {
2261                        match last_restore_checkpoint {
2262                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2263                            LastRestoreCheckpoint::Error { error: err, .. } => {
2264                                error = Some(err.clone());
2265                            }
2266                        }
2267                    }
2268
2269                    let restore_checkpoint_button =
2270                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2271                            .icon(if error.is_some() {
2272                                IconName::XCircle
2273                            } else {
2274                                IconName::Undo
2275                            })
2276                            .icon_size(IconSize::XSmall)
2277                            .icon_position(IconPosition::Start)
2278                            .icon_color(if error.is_some() {
2279                                Some(Color::Error)
2280                            } else {
2281                                None
2282                            })
2283                            .label_size(LabelSize::XSmall)
2284                            .disabled(is_pending)
2285                            .on_click(cx.listener(move |this, _, _window, cx| {
2286                                this.thread.update(cx, |thread, cx| {
2287                                    thread
2288                                        .restore_checkpoint(checkpoint.clone(), cx)
2289                                        .detach_and_log_err(cx);
2290                                });
2291                            }));
2292
2293                    let restore_checkpoint_button = if is_pending {
2294                        restore_checkpoint_button
2295                            .with_animation(
2296                                ("pulsating-restore-checkpoint-button", ix),
2297                                Animation::new(Duration::from_secs(2))
2298                                    .repeat()
2299                                    .with_easing(pulsating_between(0.6, 1.)),
2300                                |label, delta| label.alpha(delta),
2301                            )
2302                            .into_any_element()
2303                    } else if let Some(error) = error {
2304                        restore_checkpoint_button
2305                            .tooltip(Tooltip::text(error))
2306                            .into_any_element()
2307                    } else {
2308                        restore_checkpoint_button.into_any_element()
2309                    };
2310
2311                    parent.child(
2312                        h_flex()
2313                            .pt_2p5()
2314                            .px_2p5()
2315                            .w_full()
2316                            .gap_1()
2317                            .child(ui::Divider::horizontal())
2318                            .child(restore_checkpoint_button)
2319                            .child(ui::Divider::horizontal()),
2320                    )
2321                } else {
2322                    parent
2323                }
2324            })
2325            .when(is_first_message, |parent| {
2326                parent.child(self.render_rules_item(cx))
2327            })
2328            .child(styled_message)
2329            .children(loading_dots)
2330            .when(show_feedback, move |parent| {
2331                parent.child(feedback_items).when_some(
2332                    self.open_feedback_editors.get(&message_id),
2333                    move |parent, feedback_editor| {
2334                        let focus_handle = feedback_editor.focus_handle(cx);
2335                        parent.child(
2336                            v_flex()
2337                                .key_context("AgentFeedbackMessageEditor")
2338                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2339                                    this.open_feedback_editors.remove(&message_id);
2340                                    cx.notify();
2341                                }))
2342                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2343                                    this.submit_feedback_message(message_id, cx);
2344                                    cx.notify();
2345                                }))
2346                                .mb_2()
2347                                .mx_4()
2348                                .p_2()
2349                                .rounded_md()
2350                                .border_1()
2351                                .border_color(cx.theme().colors().border)
2352                                .bg(cx.theme().colors().editor_background)
2353                                .child(feedback_editor.clone())
2354                                .child(
2355                                    h_flex()
2356                                        .gap_1()
2357                                        .justify_end()
2358                                        .child(
2359                                            Button::new("dismiss-feedback-message", "Cancel")
2360                                                .label_size(LabelSize::Small)
2361                                                .key_binding(
2362                                                    KeyBinding::for_action_in(
2363                                                        &menu::Cancel,
2364                                                        &focus_handle,
2365                                                        window,
2366                                                        cx,
2367                                                    )
2368                                                    .map(|kb| kb.size(rems_from_px(10.))),
2369                                                )
2370                                                .on_click(cx.listener(
2371                                                    move |this, _, _window, cx| {
2372                                                        this.open_feedback_editors
2373                                                            .remove(&message_id);
2374                                                        cx.notify();
2375                                                    },
2376                                                )),
2377                                        )
2378                                        .child(
2379                                            Button::new(
2380                                                "submit-feedback-message",
2381                                                "Share Feedback",
2382                                            )
2383                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2384                                            .label_size(LabelSize::Small)
2385                                            .key_binding(
2386                                                KeyBinding::for_action_in(
2387                                                    &menu::Confirm,
2388                                                    &focus_handle,
2389                                                    window,
2390                                                    cx,
2391                                                )
2392                                                .map(|kb| kb.size(rems_from_px(10.))),
2393                                            )
2394                                            .on_click(
2395                                                cx.listener(move |this, _, _window, cx| {
2396                                                    this.submit_feedback_message(message_id, cx);
2397                                                    cx.notify()
2398                                                }),
2399                                            ),
2400                                        ),
2401                                ),
2402                        )
2403                    },
2404                )
2405            })
2406            .when(after_editing_message, |parent| {
2407                // Backdrop to dim out the whole thread below the editing user message
2408                parent.relative().child(backdrop)
2409            })
2410            .into_any()
2411    }
2412
2413    fn render_message_content(
2414        &self,
2415        message_id: MessageId,
2416        rendered_message: &RenderedMessage,
2417        has_tool_uses: bool,
2418        workspace: WeakEntity<Workspace>,
2419        window: &Window,
2420        cx: &Context<Self>,
2421    ) -> impl IntoElement {
2422        let is_last_message = self.messages.last() == Some(&message_id);
2423        let is_generating = self.thread.read(cx).is_generating();
2424        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2425            rendered_message
2426                .segments
2427                .iter()
2428                .enumerate()
2429                .next_back()
2430                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2431                .map(|(index, _)| index)
2432        } else {
2433            None
2434        };
2435
2436        let message_role = self
2437            .thread
2438            .read(cx)
2439            .message(message_id)
2440            .map(|m| m.role)
2441            .unwrap_or(Role::User);
2442
2443        let is_assistant_message = message_role == Role::Assistant;
2444        let is_user_message = message_role == Role::User;
2445
2446        v_flex()
2447            .text_ui(cx)
2448            .gap_2()
2449            .when(is_user_message, |this| this.text_xs())
2450            .children(
2451                rendered_message.segments.iter().enumerate().map(
2452                    |(index, segment)| match segment {
2453                        RenderedMessageSegment::Thinking {
2454                            content,
2455                            scroll_handle,
2456                        } => self
2457                            .render_message_thinking_segment(
2458                                message_id,
2459                                index,
2460                                content.clone(),
2461                                scroll_handle,
2462                                Some(index) == pending_thinking_segment_index,
2463                                window,
2464                                cx,
2465                            )
2466                            .into_any_element(),
2467                        RenderedMessageSegment::Text(markdown) => {
2468                            let markdown_element = MarkdownElement::new(
2469                                markdown.clone(),
2470                                if is_user_message {
2471                                    let mut style = default_markdown_style(window, cx);
2472                                    let mut text_style = window.text_style();
2473                                    let theme_settings = ThemeSettings::get_global(cx);
2474
2475                                    let buffer_font = theme_settings.buffer_font.family.clone();
2476                                    let buffer_font_size = TextSize::Small.rems(cx);
2477
2478                                    text_style.refine(&TextStyleRefinement {
2479                                        font_family: Some(buffer_font),
2480                                        font_size: Some(buffer_font_size.into()),
2481                                        ..Default::default()
2482                                    });
2483
2484                                    style.base_text_style = text_style;
2485                                    style
2486                                } else {
2487                                    default_markdown_style(window, cx)
2488                                },
2489                            );
2490
2491                            let markdown_element = if is_assistant_message {
2492                                markdown_element.code_block_renderer(
2493                                    markdown::CodeBlockRenderer::Custom {
2494                                        render: Arc::new({
2495                                            let workspace = workspace.clone();
2496                                            let active_thread = cx.entity();
2497                                            move |kind,
2498                                                  parsed_markdown,
2499                                                  range,
2500                                                  metadata,
2501                                                  window,
2502                                                  cx| {
2503                                                render_markdown_code_block(
2504                                                    message_id,
2505                                                    range.start,
2506                                                    kind,
2507                                                    parsed_markdown,
2508                                                    metadata,
2509                                                    active_thread.clone(),
2510                                                    workspace.clone(),
2511                                                    window,
2512                                                    cx,
2513                                                )
2514                                            }
2515                                        }),
2516                                        transform: Some(Arc::new({
2517                                            let active_thread = cx.entity();
2518
2519                                            move |element, range, _, _, cx| {
2520                                                let is_expanded = active_thread
2521                                                    .read(cx)
2522                                                    .is_codeblock_expanded(message_id, range.start);
2523
2524                                                if is_expanded {
2525                                                    return element;
2526                                                }
2527
2528                                                element
2529                                            }
2530                                        })),
2531                                    },
2532                                )
2533                            } else {
2534                                markdown_element.code_block_renderer(
2535                                    markdown::CodeBlockRenderer::Default {
2536                                        copy_button: false,
2537                                        copy_button_on_hover: false,
2538                                        border: true,
2539                                    },
2540                                )
2541                            };
2542
2543                            div()
2544                                .child(markdown_element.on_url_click({
2545                                    let workspace = self.workspace.clone();
2546                                    move |text, window, cx| {
2547                                        open_markdown_link(text, workspace.clone(), window, cx);
2548                                    }
2549                                }))
2550                                .into_any_element()
2551                        }
2552                    },
2553                ),
2554            )
2555    }
2556
2557    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2558        cx.theme().colors().border.opacity(0.5)
2559    }
2560
2561    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2562        cx.theme()
2563            .colors()
2564            .element_background
2565            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2566    }
2567
2568    fn render_ui_notification(
2569        &self,
2570        message_content: impl IntoIterator<Item = impl IntoElement>,
2571        ix: usize,
2572        cx: &mut Context<Self>,
2573    ) -> Stateful<Div> {
2574        let message = div()
2575            .flex_1()
2576            .min_w_0()
2577            .text_size(TextSize::XSmall.rems(cx))
2578            .text_color(cx.theme().colors().text_muted)
2579            .children(message_content);
2580
2581        div()
2582            .id(("message-container", ix))
2583            .py_1()
2584            .px_2p5()
2585            .child(Banner::new().severity(Severity::Warning).child(message))
2586    }
2587
2588    fn render_message_thinking_segment(
2589        &self,
2590        message_id: MessageId,
2591        ix: usize,
2592        markdown: Entity<Markdown>,
2593        scroll_handle: &ScrollHandle,
2594        pending: bool,
2595        window: &Window,
2596        cx: &Context<Self>,
2597    ) -> impl IntoElement {
2598        let is_open = self
2599            .expanded_thinking_segments
2600            .get(&(message_id, ix))
2601            .copied()
2602            .unwrap_or_default();
2603
2604        let editor_bg = cx.theme().colors().panel_background;
2605
2606        div().map(|this| {
2607            if pending {
2608                this.v_flex()
2609                    .mt_neg_2()
2610                    .mb_1p5()
2611                    .child(
2612                        h_flex()
2613                            .group("disclosure-header")
2614                            .justify_between()
2615                            .child(
2616                                h_flex()
2617                                    .gap_1p5()
2618                                    .child(
2619                                        Icon::new(IconName::ToolThink)
2620                                            .size(IconSize::Small)
2621                                            .color(Color::Muted),
2622                                    )
2623                                    .child(LoadingLabel::new("Thinking").size(LabelSize::Small)),
2624                            )
2625                            .child(
2626                                h_flex()
2627                                    .gap_1()
2628                                    .child(
2629                                        div().visible_on_hover("disclosure-header").child(
2630                                            Disclosure::new("thinking-disclosure", is_open)
2631                                                .opened_icon(IconName::ChevronUp)
2632                                                .closed_icon(IconName::ChevronDown)
2633                                                .on_click(cx.listener({
2634                                                    move |this, _event, _window, _cx| {
2635                                                        let is_open = this
2636                                                            .expanded_thinking_segments
2637                                                            .entry((message_id, ix))
2638                                                            .or_insert(false);
2639
2640                                                        *is_open = !*is_open;
2641                                                    }
2642                                                })),
2643                                        ),
2644                                    )
2645                                    .child({
2646                                        Icon::new(IconName::ArrowCircle)
2647                                            .color(Color::Accent)
2648                                            .size(IconSize::Small)
2649                                            .with_rotate_animation(2)
2650                                    }),
2651                            ),
2652                    )
2653                    .when(!is_open, |this| {
2654                        let gradient_overlay = div()
2655                            .rounded_b_lg()
2656                            .h_full()
2657                            .absolute()
2658                            .w_full()
2659                            .bottom_0()
2660                            .left_0()
2661                            .bg(linear_gradient(
2662                                180.,
2663                                linear_color_stop(editor_bg, 1.),
2664                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2665                            ));
2666
2667                        this.child(
2668                            div()
2669                                .relative()
2670                                .bg(editor_bg)
2671                                .rounded_b_lg()
2672                                .mt_2()
2673                                .pl_4()
2674                                .child(
2675                                    div()
2676                                        .id(("thinking-content", ix))
2677                                        .max_h_20()
2678                                        .track_scroll(scroll_handle)
2679                                        .text_ui_sm(cx)
2680                                        .overflow_hidden()
2681                                        .child(
2682                                            MarkdownElement::new(
2683                                                markdown.clone(),
2684                                                default_markdown_style(window, cx),
2685                                            )
2686                                            .on_url_click({
2687                                                let workspace = self.workspace.clone();
2688                                                move |text, window, cx| {
2689                                                    open_markdown_link(
2690                                                        text,
2691                                                        workspace.clone(),
2692                                                        window,
2693                                                        cx,
2694                                                    );
2695                                                }
2696                                            }),
2697                                        ),
2698                                )
2699                                .child(gradient_overlay),
2700                        )
2701                    })
2702                    .when(is_open, |this| {
2703                        this.child(
2704                            div()
2705                                .id(("thinking-content", ix))
2706                                .h_full()
2707                                .bg(editor_bg)
2708                                .text_ui_sm(cx)
2709                                .child(
2710                                    MarkdownElement::new(
2711                                        markdown.clone(),
2712                                        default_markdown_style(window, cx),
2713                                    )
2714                                    .on_url_click({
2715                                        let workspace = self.workspace.clone();
2716                                        move |text, window, cx| {
2717                                            open_markdown_link(text, workspace.clone(), window, cx);
2718                                        }
2719                                    }),
2720                                ),
2721                        )
2722                    })
2723            } else {
2724                this.v_flex()
2725                    .mt_neg_2()
2726                    .child(
2727                        h_flex()
2728                            .group("disclosure-header")
2729                            .pr_1()
2730                            .justify_between()
2731                            .opacity(0.8)
2732                            .hover(|style| style.opacity(1.))
2733                            .child(
2734                                h_flex()
2735                                    .gap_1p5()
2736                                    .child(
2737                                        Icon::new(IconName::ToolThink)
2738                                            .size(IconSize::XSmall)
2739                                            .color(Color::Muted),
2740                                    )
2741                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2742                            )
2743                            .child(
2744                                div().visible_on_hover("disclosure-header").child(
2745                                    Disclosure::new("thinking-disclosure", is_open)
2746                                        .opened_icon(IconName::ChevronUp)
2747                                        .closed_icon(IconName::ChevronDown)
2748                                        .on_click(cx.listener({
2749                                            move |this, _event, _window, _cx| {
2750                                                let is_open = this
2751                                                    .expanded_thinking_segments
2752                                                    .entry((message_id, ix))
2753                                                    .or_insert(false);
2754
2755                                                *is_open = !*is_open;
2756                                            }
2757                                        })),
2758                                ),
2759                            ),
2760                    )
2761                    .child(
2762                        div()
2763                            .id(("thinking-content", ix))
2764                            .relative()
2765                            .mt_1p5()
2766                            .ml_1p5()
2767                            .pl_2p5()
2768                            .border_l_1()
2769                            .border_color(cx.theme().colors().border_variant)
2770                            .text_ui_sm(cx)
2771                            .when(is_open, |this| {
2772                                this.child(
2773                                    MarkdownElement::new(
2774                                        markdown.clone(),
2775                                        default_markdown_style(window, cx),
2776                                    )
2777                                    .on_url_click({
2778                                        let workspace = self.workspace.clone();
2779                                        move |text, window, cx| {
2780                                            open_markdown_link(text, workspace.clone(), window, cx);
2781                                        }
2782                                    }),
2783                                )
2784                            }),
2785                    )
2786            }
2787        })
2788    }
2789
2790    fn render_tool_use(
2791        &self,
2792        tool_use: ToolUse,
2793        window: &mut Window,
2794        workspace: WeakEntity<Workspace>,
2795        cx: &mut Context<Self>,
2796    ) -> impl IntoElement + use<> {
2797        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2798            return card.render(&tool_use.status, window, workspace, cx);
2799        }
2800
2801        let is_open = self
2802            .expanded_tool_uses
2803            .get(&tool_use.id)
2804            .copied()
2805            .unwrap_or_default();
2806
2807        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2808
2809        let fs = self
2810            .workspace
2811            .upgrade()
2812            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2813        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2814        let needs_confirmation_tools = tool_use.needs_confirmation;
2815
2816        let status_icons = div().child(match &tool_use.status {
2817            ToolUseStatus::NeedsConfirmation => {
2818                let icon = Icon::new(IconName::Warning)
2819                    .color(Color::Warning)
2820                    .size(IconSize::Small);
2821                icon.into_any_element()
2822            }
2823            ToolUseStatus::Pending
2824            | ToolUseStatus::InputStillStreaming
2825            | ToolUseStatus::Running => Icon::new(IconName::ArrowCircle)
2826                .color(Color::Accent)
2827                .size(IconSize::Small)
2828                .with_rotate_animation(2)
2829                .into_any_element(),
2830            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2831            ToolUseStatus::Error(_) => {
2832                let icon = Icon::new(IconName::Close)
2833                    .color(Color::Error)
2834                    .size(IconSize::Small);
2835                icon.into_any_element()
2836            }
2837        });
2838
2839        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2840        let results_content_container = || v_flex().p_2().gap_0p5();
2841
2842        let results_content = v_flex()
2843            .gap_1()
2844            .child(
2845                results_content_container()
2846                    .child(
2847                        Label::new("Input")
2848                            .size(LabelSize::XSmall)
2849                            .color(Color::Muted)
2850                            .buffer_font(cx),
2851                    )
2852                    .child(
2853                        div()
2854                            .w_full()
2855                            .text_ui_sm(cx)
2856                            .children(rendered_tool_use.as_ref().map(|rendered| {
2857                                MarkdownElement::new(
2858                                    rendered.input.clone(),
2859                                    tool_use_markdown_style(window, cx),
2860                                )
2861                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2862                                    copy_button: false,
2863                                    copy_button_on_hover: false,
2864                                    border: false,
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                            })),
2873                    ),
2874            )
2875            .map(|container| match tool_use.status {
2876                ToolUseStatus::Finished(_) => container.child(
2877                    results_content_container()
2878                        .border_t_1()
2879                        .border_color(self.tool_card_border_color(cx))
2880                        .child(
2881                            Label::new("Result")
2882                                .size(LabelSize::XSmall)
2883                                .color(Color::Muted)
2884                                .buffer_font(cx),
2885                        )
2886                        .child(div().w_full().text_ui_sm(cx).children(
2887                            rendered_tool_use.as_ref().map(|rendered| {
2888                                MarkdownElement::new(
2889                                    rendered.output.clone(),
2890                                    tool_use_markdown_style(window, cx),
2891                                )
2892                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2893                                    copy_button: false,
2894                                    copy_button_on_hover: false,
2895                                    border: false,
2896                                })
2897                                .on_url_click({
2898                                    let workspace = self.workspace.clone();
2899                                    move |text, window, cx| {
2900                                        open_markdown_link(text, workspace.clone(), window, cx);
2901                                    }
2902                                })
2903                                .into_any_element()
2904                            }),
2905                        )),
2906                ),
2907                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2908                    results_content_container()
2909                        .border_t_1()
2910                        .border_color(self.tool_card_border_color(cx))
2911                        .child(
2912                            h_flex()
2913                                .gap_1()
2914                                .child(
2915                                    Icon::new(IconName::ArrowCircle)
2916                                        .size(IconSize::Small)
2917                                        .color(Color::Accent)
2918                                        .with_rotate_animation(2),
2919                                )
2920                                .child(
2921                                    Label::new("Running…")
2922                                        .size(LabelSize::XSmall)
2923                                        .color(Color::Muted)
2924                                        .buffer_font(cx),
2925                                ),
2926                        ),
2927                ),
2928                ToolUseStatus::Error(_) => container.child(
2929                    results_content_container()
2930                        .border_t_1()
2931                        .border_color(self.tool_card_border_color(cx))
2932                        .child(
2933                            Label::new("Error")
2934                                .size(LabelSize::XSmall)
2935                                .color(Color::Muted)
2936                                .buffer_font(cx),
2937                        )
2938                        .child(
2939                            div()
2940                                .text_ui_sm(cx)
2941                                .children(rendered_tool_use.as_ref().map(|rendered| {
2942                                    MarkdownElement::new(
2943                                        rendered.output.clone(),
2944                                        tool_use_markdown_style(window, cx),
2945                                    )
2946                                    .on_url_click({
2947                                        let workspace = self.workspace.clone();
2948                                        move |text, window, cx| {
2949                                            open_markdown_link(text, workspace.clone(), window, cx);
2950                                        }
2951                                    })
2952                                    .into_any_element()
2953                                })),
2954                        ),
2955                ),
2956                ToolUseStatus::Pending => container,
2957                ToolUseStatus::NeedsConfirmation => container.child(
2958                    results_content_container()
2959                        .border_t_1()
2960                        .border_color(self.tool_card_border_color(cx))
2961                        .child(
2962                            Label::new("Asking Permission")
2963                                .size(LabelSize::Small)
2964                                .color(Color::Muted)
2965                                .buffer_font(cx),
2966                        ),
2967                ),
2968            });
2969
2970        let gradient_overlay = |color: Hsla| {
2971            div()
2972                .h_full()
2973                .absolute()
2974                .w_12()
2975                .bottom_0()
2976                .map(|element| {
2977                    if is_status_finished {
2978                        element.right_6()
2979                    } else {
2980                        element.right(px(44.))
2981                    }
2982                })
2983                .bg(linear_gradient(
2984                    90.,
2985                    linear_color_stop(color, 1.),
2986                    linear_color_stop(color.opacity(0.2), 0.),
2987                ))
2988        };
2989
2990        v_flex().gap_1().mb_2().map(|element| {
2991            if !needs_confirmation_tools {
2992                element.child(
2993                    v_flex()
2994                        .child(
2995                            h_flex()
2996                                .group("disclosure-header")
2997                                .relative()
2998                                .gap_1p5()
2999                                .justify_between()
3000                                .opacity(0.8)
3001                                .hover(|style| style.opacity(1.))
3002                                .when(!is_status_finished, |this| this.pr_2())
3003                                .child(
3004                                    h_flex()
3005                                        .id("tool-label-container")
3006                                        .gap_1p5()
3007                                        .max_w_full()
3008                                        .overflow_x_scroll()
3009                                        .child(
3010                                            Icon::new(tool_use.icon)
3011                                                .size(IconSize::Small)
3012                                                .color(Color::Muted),
3013                                        )
3014                                        .child(
3015                                            h_flex().pr_8().text_size(rems(0.8125)).children(
3016                                                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| {
3017                                                    open_markdown_link(text, workspace.clone(), window, cx);
3018                                                }}))
3019                                            ),
3020                                        ),
3021                                )
3022                                .child(
3023                                    h_flex()
3024                                        .gap_1()
3025                                        .child(
3026                                            div().visible_on_hover("disclosure-header").child(
3027                                                Disclosure::new("tool-use-disclosure", is_open)
3028                                                    .opened_icon(IconName::ChevronUp)
3029                                                    .closed_icon(IconName::ChevronDown)
3030                                                    .on_click(cx.listener({
3031                                                        let tool_use_id = tool_use.id.clone();
3032                                                        move |this, _event, _window, _cx| {
3033                                                            let is_open = this
3034                                                                .expanded_tool_uses
3035                                                                .entry(tool_use_id.clone())
3036                                                                .or_insert(false);
3037
3038                                                            *is_open = !*is_open;
3039                                                        }
3040                                                    })),
3041                                            ),
3042                                        )
3043                                        .child(status_icons),
3044                                )
3045                                .child(gradient_overlay(cx.theme().colors().panel_background)),
3046                        )
3047                        .map(|parent| {
3048                            if !is_open {
3049                                return parent;
3050                            }
3051
3052                            parent.child(
3053                                v_flex()
3054                                    .mt_1()
3055                                    .border_1()
3056                                    .border_color(self.tool_card_border_color(cx))
3057                                    .bg(cx.theme().colors().editor_background)
3058                                    .rounded_lg()
3059                                    .child(results_content),
3060                            )
3061                        }),
3062                )
3063            } else {
3064                v_flex()
3065                    .mb_2()
3066                    .rounded_lg()
3067                    .border_1()
3068                    .border_color(self.tool_card_border_color(cx))
3069                    .overflow_hidden()
3070                    .child(
3071                        h_flex()
3072                            .group("disclosure-header")
3073                            .relative()
3074                            .justify_between()
3075                            .py_1()
3076                            .map(|element| {
3077                                if is_status_finished {
3078                                    element.pl_2().pr_0p5()
3079                                } else {
3080                                    element.px_2()
3081                                }
3082                            })
3083                            .bg(self.tool_card_header_bg(cx))
3084                            .map(|element| {
3085                                if is_open {
3086                                    element.border_b_1().rounded_t_md()
3087                                } else if needs_confirmation {
3088                                    element.rounded_t_md()
3089                                } else {
3090                                    element.rounded_md()
3091                                }
3092                            })
3093                            .border_color(self.tool_card_border_color(cx))
3094                            .child(
3095                                h_flex()
3096                                    .id("tool-label-container")
3097                                    .gap_1p5()
3098                                    .max_w_full()
3099                                    .overflow_x_scroll()
3100                                    .child(
3101                                        Icon::new(tool_use.icon)
3102                                            .size(IconSize::XSmall)
3103                                            .color(Color::Muted),
3104                                    )
3105                                    .child(
3106                                        h_flex().pr_8().text_ui_sm(cx).children(
3107                                            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| {
3108                                                open_markdown_link(text, workspace.clone(), window, cx);
3109                                            }}))
3110                                        ),
3111                                    ),
3112                            )
3113                            .child(
3114                                h_flex()
3115                                    .gap_1()
3116                                    .child(
3117                                        div().visible_on_hover("disclosure-header").child(
3118                                            Disclosure::new("tool-use-disclosure", is_open)
3119                                                .opened_icon(IconName::ChevronUp)
3120                                                .closed_icon(IconName::ChevronDown)
3121                                                .on_click(cx.listener({
3122                                                    let tool_use_id = tool_use.id.clone();
3123                                                    move |this, _event, _window, _cx| {
3124                                                        let is_open = this
3125                                                            .expanded_tool_uses
3126                                                            .entry(tool_use_id.clone())
3127                                                            .or_insert(false);
3128
3129                                                        *is_open = !*is_open;
3130                                                    }
3131                                                })),
3132                                        ),
3133                                    )
3134                                    .child(status_icons),
3135                            )
3136                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3137                    )
3138                    .map(|parent| {
3139                        if !is_open {
3140                            return parent;
3141                        }
3142
3143                        parent.child(
3144                            v_flex()
3145                                .bg(cx.theme().colors().editor_background)
3146                                .map(|element| {
3147                                    if  needs_confirmation {
3148                                        element.rounded_none()
3149                                    } else {
3150                                        element.rounded_b_lg()
3151                                    }
3152                                })
3153                                .child(results_content),
3154                        )
3155                    })
3156                    .when(needs_confirmation, |this| {
3157                        this.child(
3158                            h_flex()
3159                                .py_1()
3160                                .pl_2()
3161                                .pr_1()
3162                                .gap_1()
3163                                .justify_between()
3164                                .flex_wrap()
3165                                .bg(cx.theme().colors().editor_background)
3166                                .border_t_1()
3167                                .border_color(self.tool_card_border_color(cx))
3168                                .rounded_b_lg()
3169                                .child(
3170                                    div()
3171                                        .min_w(rems_from_px(145.))
3172                                        .child(LoadingLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3173                                    )
3174                                )
3175                                .child(
3176                                    h_flex()
3177                                        .gap_0p5()
3178                                        .child({
3179                                            let tool_id = tool_use.id.clone();
3180                                            Button::new(
3181                                                "always-allow-tool-action",
3182                                                "Always Allow",
3183                                            )
3184                                            .label_size(LabelSize::Small)
3185                                            .icon(IconName::CheckDouble)
3186                                            .icon_position(IconPosition::Start)
3187                                            .icon_size(IconSize::Small)
3188                                            .icon_color(Color::Success)
3189                                            .tooltip(move |window, cx|  {
3190                                                Tooltip::with_meta(
3191                                                    "Never ask for permission",
3192                                                    None,
3193                                                    "Restore the original behavior in your Agent Panel settings",
3194                                                    window,
3195                                                    cx,
3196                                                )
3197                                            })
3198                                            .on_click(cx.listener(
3199                                                move |this, event, window, cx| {
3200                                                    if let Some(fs) = fs.clone() {
3201                                                        update_settings_file::<AgentSettings>(
3202                                                            fs.clone(),
3203                                                            cx,
3204                                                            |settings, _| {
3205                                                                settings.set_always_allow_tool_actions(true);
3206                                                            },
3207                                                        );
3208                                                    }
3209                                                    this.handle_allow_tool(
3210                                                        tool_id.clone(),
3211                                                        event,
3212                                                        window,
3213                                                        cx,
3214                                                    )
3215                                                },
3216                                            ))
3217                                        })
3218                                        .child({
3219                                            let tool_id = tool_use.id.clone();
3220                                            Button::new("allow-tool-action", "Allow")
3221                                                .label_size(LabelSize::Small)
3222                                                .icon(IconName::Check)
3223                                                .icon_position(IconPosition::Start)
3224                                                .icon_size(IconSize::Small)
3225                                                .icon_color(Color::Success)
3226                                                .on_click(cx.listener(
3227                                                    move |this, event, window, cx| {
3228                                                        this.handle_allow_tool(
3229                                                            tool_id.clone(),
3230                                                            event,
3231                                                            window,
3232                                                            cx,
3233                                                        )
3234                                                    },
3235                                                ))
3236                                        })
3237                                        .child({
3238                                            let tool_id = tool_use.id.clone();
3239                                            let tool_name: Arc<str> = tool_use.name.into();
3240                                            Button::new("deny-tool", "Deny")
3241                                                .label_size(LabelSize::Small)
3242                                                .icon(IconName::Close)
3243                                                .icon_position(IconPosition::Start)
3244                                                .icon_size(IconSize::Small)
3245                                                .icon_color(Color::Error)
3246                                                .on_click(cx.listener(
3247                                                    move |this, event, window, cx| {
3248                                                        this.handle_deny_tool(
3249                                                            tool_id.clone(),
3250                                                            tool_name.clone(),
3251                                                            event,
3252                                                            window,
3253                                                            cx,
3254                                                        )
3255                                                    },
3256                                                ))
3257                                        }),
3258                                ),
3259                        )
3260                    })
3261            }
3262        }).into_any_element()
3263    }
3264
3265    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3266        let project_context = self.thread.read(cx).project_context();
3267        let project_context = project_context.borrow();
3268        let Some(project_context) = project_context.as_ref() else {
3269            return div().into_any();
3270        };
3271
3272        let user_rules_text = if project_context.user_rules.is_empty() {
3273            None
3274        } else if project_context.user_rules.len() == 1 {
3275            let user_rules = &project_context.user_rules[0];
3276
3277            match user_rules.title.as_ref() {
3278                Some(title) => Some(format!("Using \"{title}\" user rule")),
3279                None => Some("Using user rule".into()),
3280            }
3281        } else {
3282            Some(format!(
3283                "Using {} user rules",
3284                project_context.user_rules.len()
3285            ))
3286        };
3287
3288        let first_user_rules_id = project_context
3289            .user_rules
3290            .first()
3291            .map(|user_rules| user_rules.uuid.0);
3292
3293        let rules_files = project_context
3294            .worktrees
3295            .iter()
3296            .filter_map(|worktree| worktree.rules_file.as_ref())
3297            .collect::<Vec<_>>();
3298
3299        let rules_file_text = match rules_files.as_slice() {
3300            &[] => None,
3301            &[rules_file] => Some(format!(
3302                "Using project {:?} file",
3303                rules_file.path_in_worktree
3304            )),
3305            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3306        };
3307
3308        if user_rules_text.is_none() && rules_file_text.is_none() {
3309            return div().into_any();
3310        }
3311
3312        v_flex()
3313            .pt_2()
3314            .px_2p5()
3315            .gap_1()
3316            .when_some(user_rules_text, |parent, user_rules_text| {
3317                parent.child(
3318                    h_flex()
3319                        .w_full()
3320                        .child(
3321                            Icon::new(RULES_ICON)
3322                                .size(IconSize::XSmall)
3323                                .color(Color::Disabled),
3324                        )
3325                        .child(
3326                            Label::new(user_rules_text)
3327                                .size(LabelSize::XSmall)
3328                                .color(Color::Muted)
3329                                .truncate()
3330                                .buffer_font(cx)
3331                                .ml_1p5()
3332                                .mr_0p5(),
3333                        )
3334                        .child(
3335                            IconButton::new("open-prompt-library", IconName::ArrowUpRight)
3336                                .shape(ui::IconButtonShape::Square)
3337                                .icon_size(IconSize::XSmall)
3338                                .icon_color(Color::Ignored)
3339                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3340                                .tooltip(Tooltip::text("View User Rules"))
3341                                .on_click(move |_event, window, cx| {
3342                                    window.dispatch_action(
3343                                        Box::new(OpenRulesLibrary {
3344                                            prompt_to_select: first_user_rules_id,
3345                                        }),
3346                                        cx,
3347                                    )
3348                                }),
3349                        ),
3350                )
3351            })
3352            .when_some(rules_file_text, |parent, rules_file_text| {
3353                parent.child(
3354                    h_flex()
3355                        .w_full()
3356                        .child(
3357                            Icon::new(IconName::File)
3358                                .size(IconSize::XSmall)
3359                                .color(Color::Disabled),
3360                        )
3361                        .child(
3362                            Label::new(rules_file_text)
3363                                .size(LabelSize::XSmall)
3364                                .color(Color::Muted)
3365                                .buffer_font(cx)
3366                                .ml_1p5()
3367                                .mr_0p5(),
3368                        )
3369                        .child(
3370                            IconButton::new("open-rule", IconName::ArrowUpRight)
3371                                .shape(ui::IconButtonShape::Square)
3372                                .icon_size(IconSize::XSmall)
3373                                .icon_color(Color::Ignored)
3374                                .on_click(cx.listener(Self::handle_open_rules))
3375                                .tooltip(Tooltip::text("View Rules")),
3376                        ),
3377                )
3378            })
3379            .into_any()
3380    }
3381
3382    fn handle_allow_tool(
3383        &mut self,
3384        tool_use_id: LanguageModelToolUseId,
3385        _: &ClickEvent,
3386        window: &mut Window,
3387        cx: &mut Context<Self>,
3388    ) {
3389        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3390            .thread
3391            .read(cx)
3392            .pending_tool(&tool_use_id)
3393            .map(|tool_use| tool_use.status.clone())
3394        {
3395            self.thread.update(cx, |thread, cx| {
3396                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3397                    thread.run_tool(
3398                        c.tool_use_id.clone(),
3399                        c.ui_text.clone(),
3400                        c.input.clone(),
3401                        c.request.clone(),
3402                        c.tool.clone(),
3403                        configured.model,
3404                        Some(window.window_handle()),
3405                        cx,
3406                    );
3407                }
3408            });
3409        }
3410    }
3411
3412    fn handle_deny_tool(
3413        &mut self,
3414        tool_use_id: LanguageModelToolUseId,
3415        tool_name: Arc<str>,
3416        _: &ClickEvent,
3417        window: &mut Window,
3418        cx: &mut Context<Self>,
3419    ) {
3420        let window_handle = window.window_handle();
3421        self.thread.update(cx, |thread, cx| {
3422            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3423        });
3424    }
3425
3426    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3427        let project_context = self.thread.read(cx).project_context();
3428        let project_context = project_context.borrow();
3429        let Some(project_context) = project_context.as_ref() else {
3430            return;
3431        };
3432
3433        let project_entry_ids = project_context
3434            .worktrees
3435            .iter()
3436            .flat_map(|worktree| worktree.rules_file.as_ref())
3437            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3438            .collect::<Vec<_>>();
3439
3440        self.workspace
3441            .update(cx, move |workspace, cx| {
3442                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3443                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3444                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3445                let project = workspace.project().read(cx);
3446                let project_paths = project_entry_ids
3447                    .into_iter()
3448                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3449                    .collect::<Vec<_>>();
3450                for project_path in project_paths {
3451                    workspace
3452                        .open_path(project_path, None, true, window, cx)
3453                        .detach_and_log_err(cx);
3454                }
3455            })
3456            .ok();
3457    }
3458
3459    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3460        for window in self.notifications.drain(..) {
3461            window
3462                .update(cx, |_, window, _| {
3463                    window.remove_window();
3464                })
3465                .ok();
3466
3467            self.notification_subscriptions.remove(&window);
3468        }
3469    }
3470
3471    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Stateful<Div> {
3472        div()
3473            .occlude()
3474            .id("active-thread-scrollbar")
3475            .on_mouse_move(cx.listener(|_, _, _, cx| {
3476                cx.notify();
3477                cx.stop_propagation()
3478            }))
3479            .on_hover(|_, _, cx| {
3480                cx.stop_propagation();
3481            })
3482            .on_any_mouse_down(|_, _, cx| {
3483                cx.stop_propagation();
3484            })
3485            .on_mouse_up(
3486                MouseButton::Left,
3487                cx.listener(|_, _, _, cx| {
3488                    cx.stop_propagation();
3489                }),
3490            )
3491            .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3492                cx.notify();
3493            }))
3494            .h_full()
3495            .absolute()
3496            .right_1()
3497            .top_1()
3498            .bottom_0()
3499            .w(px(12.))
3500            .cursor_default()
3501            .children(Scrollbar::vertical(self.scrollbar_state.clone()).map(|s| s.auto_hide(cx)))
3502    }
3503
3504    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3505        self.expanded_code_blocks
3506            .get(&(message_id, ix))
3507            .copied()
3508            .unwrap_or(true)
3509    }
3510
3511    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3512        let is_expanded = self
3513            .expanded_code_blocks
3514            .entry((message_id, ix))
3515            .or_insert(true);
3516        *is_expanded = !*is_expanded;
3517    }
3518
3519    pub fn scroll_to_top(&mut self, cx: &mut Context<Self>) {
3520        self.list_state.scroll_to(ListOffset::default());
3521        cx.notify();
3522    }
3523
3524    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3525        self.list_state.reset(self.messages.len());
3526        cx.notify();
3527    }
3528}
3529
3530pub enum ActiveThreadEvent {
3531    EditingMessageTokenCountChanged,
3532}
3533
3534impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3535
3536impl Render for ActiveThread {
3537    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3538        v_flex()
3539            .size_full()
3540            .relative()
3541            .bg(cx.theme().colors().panel_background)
3542            .child(list(self.list_state.clone(), cx.processor(Self::render_message)).flex_grow())
3543            .child(self.render_vertical_scrollbar(cx))
3544    }
3545}
3546
3547pub(crate) fn open_active_thread_as_markdown(
3548    thread: Entity<Thread>,
3549    workspace: Entity<Workspace>,
3550    window: &mut Window,
3551    cx: &mut App,
3552) -> Task<anyhow::Result<()>> {
3553    let markdown_language_task = workspace
3554        .read(cx)
3555        .app_state()
3556        .languages
3557        .language_for_name("Markdown");
3558
3559    window.spawn(cx, async move |cx| {
3560        let markdown_language = markdown_language_task.await?;
3561
3562        workspace.update_in(cx, |workspace, window, cx| {
3563            let thread = thread.read(cx);
3564            let markdown = thread.to_markdown(cx)?;
3565            let thread_summary = thread.summary().or_default().to_string();
3566
3567            let project = workspace.project().clone();
3568
3569            if !project.read(cx).is_local() {
3570                anyhow::bail!("failed to open active thread as markdown in remote project");
3571            }
3572
3573            let buffer = project.update(cx, |project, cx| {
3574                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3575            });
3576            let buffer =
3577                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3578
3579            workspace.add_item_to_active_pane(
3580                Box::new(cx.new(|cx| {
3581                    let mut editor =
3582                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3583                    editor.set_breadcrumb_header(thread_summary);
3584                    editor
3585                })),
3586                None,
3587                true,
3588                window,
3589                cx,
3590            );
3591
3592            anyhow::Ok(())
3593        })??;
3594        anyhow::Ok(())
3595    })
3596}
3597
3598pub(crate) fn open_context(
3599    context: &AgentContextHandle,
3600    workspace: Entity<Workspace>,
3601    window: &mut Window,
3602    cx: &mut App,
3603) {
3604    match context {
3605        AgentContextHandle::File(file_context) => {
3606            if let Some(project_path) = file_context.project_path(cx) {
3607                workspace.update(cx, |workspace, cx| {
3608                    workspace
3609                        .open_path(project_path, None, true, window, cx)
3610                        .detach_and_log_err(cx);
3611                });
3612            }
3613        }
3614
3615        AgentContextHandle::Directory(directory_context) => {
3616            let entry_id = directory_context.entry_id;
3617            workspace.update(cx, |workspace, cx| {
3618                workspace.project().update(cx, |_project, cx| {
3619                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3620                })
3621            })
3622        }
3623
3624        AgentContextHandle::Symbol(symbol_context) => {
3625            let buffer = symbol_context.buffer.read(cx);
3626            if let Some(project_path) = buffer.project_path(cx) {
3627                let snapshot = buffer.snapshot();
3628                let target_position = symbol_context.range.start.to_point(&snapshot);
3629                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3630                    .detach();
3631            }
3632        }
3633
3634        AgentContextHandle::Selection(selection_context) => {
3635            let buffer = selection_context.buffer.read(cx);
3636            if let Some(project_path) = buffer.project_path(cx) {
3637                let snapshot = buffer.snapshot();
3638                let target_position = selection_context.range.start.to_point(&snapshot);
3639
3640                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3641                    .detach();
3642            }
3643        }
3644
3645        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3646            cx.open_url(&fetched_url_context.url);
3647        }
3648
3649        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3650            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3651                let thread = thread_context.thread.clone();
3652                window.defer(cx, move |window, cx| {
3653                    panel.update(cx, |panel, cx| {
3654                        panel.open_thread(thread, window, cx);
3655                    });
3656                });
3657            }
3658        }),
3659
3660        AgentContextHandle::TextThread(text_thread_context) => {
3661            workspace.update(cx, |workspace, cx| {
3662                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3663                    let context = text_thread_context.context.clone();
3664                    window.defer(cx, move |window, cx| {
3665                        panel.update(cx, |panel, cx| {
3666                            panel.open_prompt_editor(context, window, cx)
3667                        });
3668                    });
3669                }
3670            })
3671        }
3672
3673        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3674            Box::new(OpenRulesLibrary {
3675                prompt_to_select: Some(rules_context.prompt_id.0),
3676            }),
3677            cx,
3678        ),
3679
3680        AgentContextHandle::Image(_) => {}
3681    }
3682}
3683
3684pub(crate) fn attach_pasted_images_as_context(
3685    context_store: &Entity<ContextStore>,
3686    cx: &mut App,
3687) -> bool {
3688    let images = cx
3689        .read_from_clipboard()
3690        .map(|item| {
3691            item.into_entries()
3692                .filter_map(|entry| {
3693                    if let ClipboardEntry::Image(image) = entry {
3694                        Some(image)
3695                    } else {
3696                        None
3697                    }
3698                })
3699                .collect::<Vec<_>>()
3700        })
3701        .unwrap_or_default();
3702
3703    if images.is_empty() {
3704        return false;
3705    }
3706    cx.stop_propagation();
3707
3708    context_store.update(cx, |store, cx| {
3709        for image in images {
3710            store.add_image_instance(Arc::new(image), cx);
3711        }
3712    });
3713    true
3714}
3715
3716fn open_editor_at_position(
3717    project_path: project::ProjectPath,
3718    target_position: Point,
3719    workspace: &Entity<Workspace>,
3720    window: &mut Window,
3721    cx: &mut App,
3722) -> Task<()> {
3723    let open_task = workspace.update(cx, |workspace, cx| {
3724        workspace.open_path(project_path, None, true, window, cx)
3725    });
3726    window.spawn(cx, async move |cx| {
3727        if let Some(active_editor) = open_task
3728            .await
3729            .log_err()
3730            .and_then(|item| item.downcast::<Editor>())
3731        {
3732            active_editor
3733                .downgrade()
3734                .update_in(cx, |editor, window, cx| {
3735                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3736                })
3737                .log_err();
3738        }
3739    })
3740}
3741
3742#[cfg(test)]
3743mod tests {
3744    use super::*;
3745    use agent::{MessageSegment, context::ContextLoadResult, thread_store};
3746    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3747    use editor::EditorSettings;
3748    use fs::FakeFs;
3749    use gpui::{AppContext, TestAppContext, VisualTestContext};
3750    use language_model::{
3751        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3752        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3753    };
3754    use project::Project;
3755    use prompt_store::PromptBuilder;
3756    use serde_json::json;
3757    use settings::SettingsStore;
3758    use util::path;
3759    use workspace::CollaboratorId;
3760
3761    #[gpui::test]
3762    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3763        init_test_settings(cx);
3764
3765        let project = create_test_project(
3766            cx,
3767            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3768        )
3769        .await;
3770
3771        let (cx, _active_thread, workspace, thread, model) =
3772            setup_test_environment(cx, project.clone()).await;
3773
3774        // Insert user message without any context (empty context vector)
3775        thread.update(cx, |thread, cx| {
3776            thread.insert_user_message(
3777                "What is the best way to learn Rust?",
3778                ContextLoadResult::default(),
3779                None,
3780                vec![],
3781                cx,
3782            );
3783        });
3784
3785        // Stream response to user message
3786        thread.update(cx, |thread, cx| {
3787            let intent = CompletionIntent::UserPrompt;
3788            let request = thread.to_completion_request(model.clone(), intent, cx);
3789            thread.stream_completion(request, model, intent, cx.active_window(), cx)
3790        });
3791        // Follow the agent
3792        cx.update(|window, cx| {
3793            workspace.update(cx, |workspace, cx| {
3794                workspace.follow(CollaboratorId::Agent, window, cx);
3795            })
3796        });
3797        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3798
3799        // Cancel the current completion
3800        thread.update(cx, |thread, cx| {
3801            thread.cancel_last_completion(cx.active_window(), cx)
3802        });
3803
3804        cx.executor().run_until_parked();
3805
3806        // No longer following the agent
3807        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3808    }
3809
3810    #[gpui::test]
3811    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3812        init_test_settings(cx);
3813
3814        let project = create_test_project(cx, json!({})).await;
3815
3816        let (cx, active_thread, _, thread, model) =
3817            setup_test_environment(cx, project.clone()).await;
3818        cx.update(|_, cx| {
3819            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3820                registry.set_default_model(
3821                    Some(ConfiguredModel {
3822                        provider: Arc::new(FakeLanguageModelProvider::default()),
3823                        model,
3824                    }),
3825                    cx,
3826                );
3827            });
3828        });
3829
3830        let creases = vec![MessageCrease {
3831            range: 14..22,
3832            icon_path: "icon".into(),
3833            label: "foo.txt".into(),
3834            context: None,
3835        }];
3836
3837        let message = thread.update(cx, |thread, cx| {
3838            let message_id = thread.insert_user_message(
3839                "Tell me about @foo.txt",
3840                ContextLoadResult::default(),
3841                None,
3842                creases,
3843                cx,
3844            );
3845            thread.message(message_id).cloned().unwrap()
3846        });
3847
3848        active_thread.update_in(cx, |active_thread, window, cx| {
3849            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3850                active_thread.start_editing_message(
3851                    message.id,
3852                    message_text,
3853                    message.creases.as_slice(),
3854                    window,
3855                    cx,
3856                );
3857            }
3858            let editor = active_thread
3859                .editing_message
3860                .as_ref()
3861                .unwrap()
3862                .1
3863                .editor
3864                .clone();
3865            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
3866            active_thread.confirm_editing_message(&Default::default(), window, cx);
3867        });
3868        cx.run_until_parked();
3869
3870        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3871        active_thread.update_in(cx, |active_thread, window, cx| {
3872            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3873                active_thread.start_editing_message(
3874                    message.id,
3875                    message_text,
3876                    message.creases.as_slice(),
3877                    window,
3878                    cx,
3879                );
3880            }
3881            let editor = active_thread
3882                .editing_message
3883                .as_ref()
3884                .unwrap()
3885                .1
3886                .editor
3887                .clone();
3888            let text = editor.update(cx, |editor, cx| editor.text(cx));
3889            assert_eq!(text, "modified @foo.txt");
3890        });
3891    }
3892
3893    #[gpui::test]
3894    async fn test_editing_message_cancels_previous_completion(cx: &mut TestAppContext) {
3895        init_test_settings(cx);
3896
3897        let project = create_test_project(cx, json!({})).await;
3898
3899        let (cx, active_thread, _, thread, model) =
3900            setup_test_environment(cx, project.clone()).await;
3901
3902        cx.update(|_, cx| {
3903            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3904                registry.set_default_model(
3905                    Some(ConfiguredModel {
3906                        provider: Arc::new(FakeLanguageModelProvider::default()),
3907                        model: model.clone(),
3908                    }),
3909                    cx,
3910                );
3911            });
3912        });
3913
3914        // Track thread events to verify cancellation
3915        let cancellation_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3916        let new_request_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3917
3918        let _subscription = cx.update(|_, cx| {
3919            let cancellation_events = cancellation_events.clone();
3920            let new_request_events = new_request_events.clone();
3921            cx.subscribe(
3922                &thread,
3923                move |_thread, event: &ThreadEvent, _cx| match event {
3924                    ThreadEvent::CompletionCanceled => {
3925                        cancellation_events.lock().unwrap().push(());
3926                    }
3927                    ThreadEvent::NewRequest => {
3928                        new_request_events.lock().unwrap().push(());
3929                    }
3930                    _ => {}
3931                },
3932            )
3933        });
3934
3935        // Insert a user message and start streaming a response
3936        let message = thread.update(cx, |thread, cx| {
3937            let message_id = thread.insert_user_message(
3938                "Hello, how are you?",
3939                ContextLoadResult::default(),
3940                None,
3941                vec![],
3942                cx,
3943            );
3944            thread.advance_prompt_id();
3945            thread.send_to_model(
3946                model.clone(),
3947                CompletionIntent::UserPrompt,
3948                cx.active_window(),
3949                cx,
3950            );
3951            thread.message(message_id).cloned().unwrap()
3952        });
3953
3954        cx.run_until_parked();
3955
3956        // Verify that a completion is in progress
3957        assert!(cx.read(|cx| thread.read(cx).is_generating()));
3958        assert_eq!(new_request_events.lock().unwrap().len(), 1);
3959
3960        // Edit the message while the completion is still running
3961        active_thread.update_in(cx, |active_thread, window, cx| {
3962            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3963                active_thread.start_editing_message(
3964                    message.id,
3965                    message_text,
3966                    message.creases.as_slice(),
3967                    window,
3968                    cx,
3969                );
3970            }
3971            let editor = active_thread
3972                .editing_message
3973                .as_ref()
3974                .unwrap()
3975                .1
3976                .editor
3977                .clone();
3978            editor.update(cx, |editor, cx| {
3979                editor.set_text("What is the weather like?", window, cx);
3980            });
3981            active_thread.confirm_editing_message(&Default::default(), window, cx);
3982        });
3983
3984        cx.run_until_parked();
3985
3986        // Verify that the previous completion was canceled
3987        assert_eq!(cancellation_events.lock().unwrap().len(), 1);
3988
3989        // Verify that a new request was started after cancellation
3990        assert_eq!(new_request_events.lock().unwrap().len(), 2);
3991
3992        // Verify that the edited message contains the new text
3993        let edited_message =
3994            thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3995        match &edited_message.segments[0] {
3996            MessageSegment::Text(text) => {
3997                assert_eq!(text, "What is the weather like?");
3998            }
3999            _ => panic!("Expected text segment"),
4000        }
4001    }
4002
4003    fn init_test_settings(cx: &mut TestAppContext) {
4004        cx.update(|cx| {
4005            let settings_store = SettingsStore::test(cx);
4006            cx.set_global(settings_store);
4007            language::init(cx);
4008            Project::init_settings(cx);
4009            AgentSettings::register(cx);
4010            prompt_store::init(cx);
4011            thread_store::init(cx);
4012            workspace::init_settings(cx);
4013            language_model::init_settings(cx);
4014            ThemeSettings::register(cx);
4015            EditorSettings::register(cx);
4016            ToolRegistry::default_global(cx);
4017        });
4018    }
4019
4020    // Helper to create a test project with test files
4021    async fn create_test_project(
4022        cx: &mut TestAppContext,
4023        files: serde_json::Value,
4024    ) -> Entity<Project> {
4025        let fs = FakeFs::new(cx.executor());
4026        fs.insert_tree(path!("/test"), files).await;
4027        Project::test(fs, [path!("/test").as_ref()], cx).await
4028    }
4029
4030    async fn setup_test_environment(
4031        cx: &mut TestAppContext,
4032        project: Entity<Project>,
4033    ) -> (
4034        &mut VisualTestContext,
4035        Entity<ActiveThread>,
4036        Entity<Workspace>,
4037        Entity<Thread>,
4038        Arc<dyn LanguageModel>,
4039    ) {
4040        let (workspace, cx) =
4041            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4042
4043        let thread_store = cx
4044            .update(|_, cx| {
4045                ThreadStore::load(
4046                    project.clone(),
4047                    cx.new(|_| ToolWorkingSet::default()),
4048                    None,
4049                    Arc::new(PromptBuilder::new(None).unwrap()),
4050                    cx,
4051                )
4052            })
4053            .await
4054            .unwrap();
4055
4056        let text_thread_store = cx
4057            .update(|_, cx| {
4058                TextThreadStore::new(
4059                    project.clone(),
4060                    Arc::new(PromptBuilder::new(None).unwrap()),
4061                    Default::default(),
4062                    cx,
4063                )
4064            })
4065            .await
4066            .unwrap();
4067
4068        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
4069        let context_store =
4070            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
4071
4072        let model = FakeLanguageModel::default();
4073        let model: Arc<dyn LanguageModel> = Arc::new(model);
4074
4075        let language_registry = LanguageRegistry::new(cx.executor());
4076        let language_registry = Arc::new(language_registry);
4077
4078        let active_thread = cx.update(|window, cx| {
4079            cx.new(|cx| {
4080                ActiveThread::new(
4081                    thread.clone(),
4082                    thread_store.clone(),
4083                    text_thread_store,
4084                    context_store.clone(),
4085                    language_registry.clone(),
4086                    workspace.downgrade(),
4087                    window,
4088                    cx,
4089                )
4090            })
4091        });
4092
4093        (cx, active_thread, workspace, thread, model)
4094    }
4095}