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, Transformation,
  27    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  28    pulsating_between,
  29};
  30use language::{Buffer, Language, LanguageRegistry};
  31use language_model::{
  32    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  33};
  34use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  35use markdown::{
  36    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  37};
  38use project::{ProjectEntryId, ProjectItem as _};
  39use rope::Point;
  40use settings::{Settings as _, SettingsStore, update_settings_file};
  41use std::ffi::OsStr;
  42use std::path::Path;
  43use std::rc::Rc;
  44use std::sync::Arc;
  45use std::time::Duration;
  46use text::ToPoint;
  47use theme::ThemeSettings;
  48use ui::{
  49    Banner, Disclosure, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  50    Tooltip, prelude::*,
  51};
  52use util::ResultExt as _;
  53use util::markdown::MarkdownCodeBlock;
  54use workspace::{CollaboratorId, Workspace};
  55use zed_actions::assistant::OpenRulesLibrary;
  56
  57const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
  58const EDIT_PREVIOUS_MESSAGE_MIN_LINES: usize = 1;
  59const RESPONSE_PADDING_X: Pixels = px(19.);
  60
  61pub struct ActiveThread {
  62    context_store: Entity<ContextStore>,
  63    language_registry: Arc<LanguageRegistry>,
  64    thread_store: Entity<ThreadStore>,
  65    text_thread_store: Entity<TextThreadStore>,
  66    thread: Entity<Thread>,
  67    workspace: WeakEntity<Workspace>,
  68    save_thread_task: Option<Task<()>>,
  69    messages: Vec<MessageId>,
  70    list_state: ListState,
  71    scrollbar_state: ScrollbarState,
  72    show_scrollbar: bool,
  73    hide_scrollbar_task: Option<Task<()>>,
  74    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  75    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  76    editing_message: Option<(MessageId, EditingMessageState)>,
  77    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  78    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  79    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  80    last_error: Option<ThreadError>,
  81    notifications: Vec<WindowHandle<AgentNotification>>,
  82    copied_code_block_ids: HashSet<(MessageId, usize)>,
  83    _subscriptions: Vec<Subscription>,
  84    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  85    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  86    _load_edited_message_context_task: Option<Task<()>>,
  87}
  88
  89struct RenderedMessage {
  90    language_registry: Arc<LanguageRegistry>,
  91    segments: Vec<RenderedMessageSegment>,
  92}
  93
  94#[derive(Clone)]
  95struct RenderedToolUse {
  96    label: Entity<Markdown>,
  97    input: Entity<Markdown>,
  98    output: Entity<Markdown>,
  99}
 100
 101impl RenderedMessage {
 102    fn from_segments(
 103        segments: &[MessageSegment],
 104        language_registry: Arc<LanguageRegistry>,
 105        cx: &mut App,
 106    ) -> Self {
 107        let mut this = Self {
 108            language_registry,
 109            segments: Vec::with_capacity(segments.len()),
 110        };
 111        for segment in segments {
 112            this.push_segment(segment, cx);
 113        }
 114        this
 115    }
 116
 117    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 118        if let Some(RenderedMessageSegment::Thinking {
 119            content,
 120            scroll_handle,
 121        }) = self.segments.last_mut()
 122        {
 123            content.update(cx, |markdown, cx| {
 124                markdown.append(text, cx);
 125            });
 126            scroll_handle.scroll_to_bottom();
 127        } else {
 128            self.segments.push(RenderedMessageSegment::Thinking {
 129                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 130                scroll_handle: ScrollHandle::default(),
 131            });
 132        }
 133    }
 134
 135    fn append_text(&mut self, text: &String, cx: &mut App) {
 136        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 137            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 138        } else {
 139            self.segments
 140                .push(RenderedMessageSegment::Text(parse_markdown(
 141                    SharedString::from(text),
 142                    self.language_registry.clone(),
 143                    cx,
 144                )));
 145        }
 146    }
 147
 148    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 149        match segment {
 150            MessageSegment::Thinking { text, .. } => {
 151                self.segments.push(RenderedMessageSegment::Thinking {
 152                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 153                    scroll_handle: ScrollHandle::default(),
 154                })
 155            }
 156            MessageSegment::Text(text) => {
 157                self.segments
 158                    .push(RenderedMessageSegment::Text(parse_markdown(
 159                        text.into(),
 160                        self.language_registry.clone(),
 161                        cx,
 162                    )))
 163            }
 164            MessageSegment::RedactedThinking(_) => {}
 165        };
 166    }
 167}
 168
 169enum RenderedMessageSegment {
 170    Thinking {
 171        content: Entity<Markdown>,
 172        scroll_handle: ScrollHandle,
 173    },
 174    Text(Entity<Markdown>),
 175}
 176
 177fn parse_markdown(
 178    text: SharedString,
 179    language_registry: Arc<LanguageRegistry>,
 180    cx: &mut App,
 181) -> Entity<Markdown> {
 182    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 183}
 184
 185pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 186    let theme_settings = ThemeSettings::get_global(cx);
 187    let colors = cx.theme().colors();
 188    let ui_font_size = TextSize::Default.rems(cx);
 189    let buffer_font_size = TextSize::Small.rems(cx);
 190    let mut text_style = window.text_style();
 191    let line_height = buffer_font_size * 1.75;
 192
 193    text_style.refine(&TextStyleRefinement {
 194        font_family: Some(theme_settings.ui_font.family.clone()),
 195        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 196        font_features: Some(theme_settings.ui_font.features.clone()),
 197        font_size: Some(ui_font_size.into()),
 198        line_height: Some(line_height.into()),
 199        color: Some(cx.theme().colors().text),
 200        ..Default::default()
 201    });
 202
 203    MarkdownStyle {
 204        base_text_style: text_style.clone(),
 205        syntax: cx.theme().syntax().clone(),
 206        selection_background_color: cx.theme().colors().element_selection_background,
 207        code_block_overflow_x_scroll: true,
 208        table_overflow_x_scroll: true,
 209        heading_level_styles: Some(HeadingLevelStyles {
 210            h1: Some(TextStyleRefinement {
 211                font_size: Some(rems(1.15).into()),
 212                ..Default::default()
 213            }),
 214            h2: Some(TextStyleRefinement {
 215                font_size: Some(rems(1.1).into()),
 216                ..Default::default()
 217            }),
 218            h3: Some(TextStyleRefinement {
 219                font_size: Some(rems(1.05).into()),
 220                ..Default::default()
 221            }),
 222            h4: Some(TextStyleRefinement {
 223                font_size: Some(rems(1.).into()),
 224                ..Default::default()
 225            }),
 226            h5: Some(TextStyleRefinement {
 227                font_size: Some(rems(0.95).into()),
 228                ..Default::default()
 229            }),
 230            h6: Some(TextStyleRefinement {
 231                font_size: Some(rems(0.875).into()),
 232                ..Default::default()
 233            }),
 234        }),
 235        code_block: StyleRefinement {
 236            padding: EdgesRefinement {
 237                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 239                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 240                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 241            },
 242            background: Some(colors.editor_background.into()),
 243            text: Some(TextStyleRefinement {
 244                font_family: Some(theme_settings.buffer_font.family.clone()),
 245                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 246                font_features: Some(theme_settings.buffer_font.features.clone()),
 247                font_size: Some(buffer_font_size.into()),
 248                ..Default::default()
 249            }),
 250            ..Default::default()
 251        },
 252        inline_code: TextStyleRefinement {
 253            font_family: Some(theme_settings.buffer_font.family.clone()),
 254            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 255            font_features: Some(theme_settings.buffer_font.features.clone()),
 256            font_size: Some(buffer_font_size.into()),
 257            background_color: Some(colors.editor_foreground.opacity(0.08)),
 258            ..Default::default()
 259        },
 260        link: TextStyleRefinement {
 261            background_color: Some(colors.editor_foreground.opacity(0.025)),
 262            underline: Some(UnderlineStyle {
 263                color: Some(colors.text_accent.opacity(0.5)),
 264                thickness: px(1.),
 265                ..Default::default()
 266            }),
 267            ..Default::default()
 268        },
 269        link_callback: Some(Rc::new(move |url, cx| {
 270            if MentionLink::is_valid(url) {
 271                let colors = cx.theme().colors();
 272                Some(TextStyleRefinement {
 273                    background_color: Some(colors.element_background),
 274                    ..Default::default()
 275                })
 276            } else {
 277                None
 278            }
 279        })),
 280        ..Default::default()
 281    }
 282}
 283
 284fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 285    let theme_settings = ThemeSettings::get_global(cx);
 286    let colors = cx.theme().colors();
 287    let ui_font_size = TextSize::Default.rems(cx);
 288    let buffer_font_size = TextSize::Small.rems(cx);
 289    let mut text_style = window.text_style();
 290
 291    text_style.refine(&TextStyleRefinement {
 292        font_family: Some(theme_settings.ui_font.family.clone()),
 293        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 294        font_features: Some(theme_settings.ui_font.features.clone()),
 295        font_size: Some(ui_font_size.into()),
 296        color: Some(cx.theme().colors().text),
 297        ..Default::default()
 298    });
 299
 300    MarkdownStyle {
 301        base_text_style: text_style,
 302        syntax: cx.theme().syntax().clone(),
 303        selection_background_color: cx.theme().colors().element_selection_background,
 304        code_block_overflow_x_scroll: false,
 305        code_block: StyleRefinement {
 306            margin: EdgesRefinement::default(),
 307            padding: EdgesRefinement::default(),
 308            background: Some(colors.editor_background.into()),
 309            border_color: None,
 310            border_widths: EdgesRefinement::default(),
 311            text: Some(TextStyleRefinement {
 312                font_family: Some(theme_settings.buffer_font.family.clone()),
 313                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 314                font_features: Some(theme_settings.buffer_font.features.clone()),
 315                font_size: Some(buffer_font_size.into()),
 316                ..Default::default()
 317            }),
 318            ..Default::default()
 319        },
 320        inline_code: TextStyleRefinement {
 321            font_family: Some(theme_settings.buffer_font.family.clone()),
 322            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 323            font_features: Some(theme_settings.buffer_font.features.clone()),
 324            font_size: Some(TextSize::XSmall.rems(cx).into()),
 325            ..Default::default()
 326        },
 327        heading: StyleRefinement {
 328            text: Some(TextStyleRefinement {
 329                font_size: Some(ui_font_size.into()),
 330                ..Default::default()
 331            }),
 332            ..Default::default()
 333        },
 334        ..Default::default()
 335    }
 336}
 337
 338fn render_markdown_code_block(
 339    message_id: MessageId,
 340    ix: usize,
 341    kind: &CodeBlockKind,
 342    parsed_markdown: &ParsedMarkdown,
 343    metadata: CodeBlockMetadata,
 344    active_thread: Entity<ActiveThread>,
 345    workspace: WeakEntity<Workspace>,
 346    _window: &Window,
 347    cx: &App,
 348) -> Div {
 349    let label_size = rems(0.8125);
 350
 351    let label = match kind {
 352        CodeBlockKind::Indented => None,
 353        CodeBlockKind::Fenced => Some(
 354            h_flex()
 355                .px_1()
 356                .gap_1()
 357                .child(
 358                    Icon::new(IconName::Code)
 359                        .color(Color::Muted)
 360                        .size(IconSize::XSmall),
 361                )
 362                .child(div().text_size(label_size).child("Plain Text"))
 363                .into_any_element(),
 364        ),
 365        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 366            parsed_markdown.languages_by_name.get(raw_language_name),
 367            raw_language_name.clone(),
 368            cx,
 369        )),
 370        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 371            // We tell the model to use /dev/null for the path instead of using ```language
 372            // because otherwise it consistently fails to use code citations.
 373            if path_range.path.starts_with("/dev/null") {
 374                let ext = path_range
 375                    .path
 376                    .extension()
 377                    .and_then(OsStr::to_str)
 378                    .map(|str| SharedString::new(str.to_string()))
 379                    .unwrap_or_default();
 380
 381                render_code_language(
 382                    parsed_markdown
 383                        .languages_by_path
 384                        .get(&path_range.path)
 385                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 386                    ext,
 387                    cx,
 388                )
 389            } else {
 390                let content = if let Some(parent) = path_range.path.parent() {
 391                    let file_name = file_name.to_string_lossy().to_string();
 392                    let path = parent.to_string_lossy().to_string();
 393                    let path_and_file = format!("{}/{}", path, file_name);
 394
 395                    h_flex()
 396                        .id(("code-block-header-label", ix))
 397                        .ml_1()
 398                        .gap_1()
 399                        .child(div().text_size(label_size).child(file_name))
 400                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 401                        .tooltip(move |window, cx| {
 402                            Tooltip::with_meta(
 403                                "Jump to File",
 404                                None,
 405                                path_and_file.clone(),
 406                                window,
 407                                cx,
 408                            )
 409                        })
 410                        .into_any_element()
 411                } else {
 412                    div()
 413                        .ml_1()
 414                        .text_size(label_size)
 415                        .child(path_range.path.to_string_lossy().to_string())
 416                        .into_any_element()
 417                };
 418
 419                h_flex()
 420                    .id(("code-block-header-button", ix))
 421                    .w_full()
 422                    .max_w_full()
 423                    .px_1()
 424                    .gap_0p5()
 425                    .cursor_pointer()
 426                    .rounded_sm()
 427                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 428                    .child(
 429                        h_flex()
 430                            .gap_0p5()
 431                            .children(
 432                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 433                                    .map(Icon::from_path)
 434                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 435                            )
 436                            .child(content)
 437                            .child(
 438                                Icon::new(IconName::ArrowUpRight)
 439                                    .size(IconSize::XSmall)
 440                                    .color(Color::Ignored),
 441                            ),
 442                    )
 443                    .on_click({
 444                        let path_range = path_range.clone();
 445                        move |_, window, cx| {
 446                            workspace
 447                                .update(cx, |workspace, cx| {
 448                                    open_path(&path_range, window, workspace, cx)
 449                                })
 450                                .ok();
 451                        }
 452                    })
 453                    .into_any_element()
 454            }
 455        }),
 456    };
 457
 458    let codeblock_was_copied = active_thread
 459        .read(cx)
 460        .copied_code_block_ids
 461        .contains(&(message_id, ix));
 462
 463    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 464
 465    let codeblock_header_bg = cx
 466        .theme()
 467        .colors()
 468        .element_background
 469        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 470
 471    let control_buttons = h_flex()
 472        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 473        .absolute()
 474        .top_0()
 475        .right_0()
 476        .h_full()
 477        .bg(codeblock_header_bg)
 478        .rounded_tr_md()
 479        .px_1()
 480        .gap_1()
 481        .child(
 482            IconButton::new(
 483                ("copy-markdown-code", ix),
 484                if codeblock_was_copied {
 485                    IconName::Check
 486                } else {
 487                    IconName::Copy
 488                },
 489            )
 490            .icon_color(Color::Muted)
 491            .shape(ui::IconButtonShape::Square)
 492            .tooltip(Tooltip::text("Copy Code"))
 493            .on_click({
 494                let active_thread = active_thread.clone();
 495                let parsed_markdown = parsed_markdown.clone();
 496                let code_block_range = metadata.content_range.clone();
 497                move |_event, _window, cx| {
 498                    active_thread.update(cx, |this, cx| {
 499                        this.copied_code_block_ids.insert((message_id, ix));
 500
 501                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 502                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 503
 504                        cx.spawn(async move |this, cx| {
 505                            cx.background_executor().timer(Duration::from_secs(2)).await;
 506
 507                            cx.update(|cx| {
 508                                this.update(cx, |this, cx| {
 509                                    this.copied_code_block_ids.remove(&(message_id, ix));
 510                                    cx.notify();
 511                                })
 512                            })
 513                            .ok();
 514                        })
 515                        .detach();
 516                    });
 517                }
 518            }),
 519        )
 520        .child(
 521            IconButton::new(
 522                ("expand-collapse-code", ix),
 523                if is_expanded {
 524                    IconName::ChevronUp
 525                } else {
 526                    IconName::ChevronDown
 527                },
 528            )
 529            .icon_color(Color::Muted)
 530            .shape(ui::IconButtonShape::Square)
 531            .tooltip(Tooltip::text(if is_expanded {
 532                "Collapse Code"
 533            } else {
 534                "Expand Code"
 535            }))
 536            .on_click({
 537                let active_thread = active_thread.clone();
 538                move |_event, _window, cx| {
 539                    active_thread.update(cx, |this, cx| {
 540                        this.toggle_codeblock_expanded(message_id, ix);
 541                        cx.notify();
 542                    });
 543                }
 544            }),
 545        );
 546
 547    let codeblock_header = h_flex()
 548        .relative()
 549        .p_1()
 550        .gap_1()
 551        .justify_between()
 552        .bg(codeblock_header_bg)
 553        .map(|this| {
 554            if !is_expanded {
 555                this.rounded_md()
 556            } else {
 557                this.rounded_t_md()
 558                    .border_b_1()
 559                    .border_color(cx.theme().colors().border.opacity(0.6))
 560            }
 561        })
 562        .children(label)
 563        .child(control_buttons);
 564
 565    v_flex()
 566        .group(CODEBLOCK_CONTAINER_GROUP)
 567        .my_2()
 568        .overflow_hidden()
 569        .rounded_md()
 570        .border_1()
 571        .border_color(cx.theme().colors().border.opacity(0.6))
 572        .bg(cx.theme().colors().editor_background)
 573        .child(codeblock_header)
 574        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 575}
 576
 577fn open_path(
 578    path_range: &PathWithRange,
 579    window: &mut Window,
 580    workspace: &mut Workspace,
 581    cx: &mut Context<'_, Workspace>,
 582) {
 583    let Some(project_path) = workspace
 584        .project()
 585        .read(cx)
 586        .find_project_path(&path_range.path, cx)
 587    else {
 588        return; // TODO instead of just bailing out, open that path in a buffer.
 589    };
 590
 591    let Some(target) = path_range.range.as_ref().map(|range| {
 592        Point::new(
 593            // Line number is 1-based
 594            range.start.line.saturating_sub(1),
 595            range.start.col.unwrap_or(0),
 596        )
 597    }) else {
 598        return;
 599    };
 600    let open_task = workspace.open_path(project_path, None, true, window, cx);
 601    window
 602        .spawn(cx, async move |cx| {
 603            let item = open_task.await?;
 604            if let Some(active_editor) = item.downcast::<Editor>() {
 605                active_editor
 606                    .update_in(cx, |editor, window, cx| {
 607                        editor.go_to_singleton_buffer_point(target, window, cx);
 608                    })
 609                    .ok();
 610            }
 611            anyhow::Ok(())
 612        })
 613        .detach_and_log_err(cx);
 614}
 615
 616fn render_code_language(
 617    language: Option<&Arc<Language>>,
 618    name_fallback: SharedString,
 619    cx: &App,
 620) -> AnyElement {
 621    let icon_path = language.and_then(|language| {
 622        language
 623            .config()
 624            .matcher
 625            .path_suffixes
 626            .iter()
 627            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 628            .map(Icon::from_path)
 629    });
 630
 631    let language_label = language
 632        .map(|language| language.name().into())
 633        .unwrap_or(name_fallback);
 634
 635    let label_size = rems(0.8125);
 636
 637    h_flex()
 638        .px_1()
 639        .gap_1p5()
 640        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 641        .child(div().text_size(label_size).child(language_label))
 642        .into_any_element()
 643}
 644
 645fn open_markdown_link(
 646    text: SharedString,
 647    workspace: WeakEntity<Workspace>,
 648    window: &mut Window,
 649    cx: &mut App,
 650) {
 651    let Some(workspace) = workspace.upgrade() else {
 652        cx.open_url(&text);
 653        return;
 654    };
 655
 656    match MentionLink::try_parse(&text, &workspace, cx) {
 657        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 658            if entry.is_dir() {
 659                workspace.project().update(cx, |_, cx| {
 660                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 661                })
 662            } else {
 663                workspace
 664                    .open_path(path, None, true, window, cx)
 665                    .detach_and_log_err(cx);
 666            }
 667        }),
 668        Some(MentionLink::Symbol(path, symbol_name)) => {
 669            let open_task = workspace.update(cx, |workspace, cx| {
 670                workspace.open_path(path, None, true, window, cx)
 671            });
 672            window
 673                .spawn(cx, async move |cx| {
 674                    let active_editor = open_task
 675                        .await?
 676                        .downcast::<Editor>()
 677                        .context("Item is not an editor")?;
 678                    active_editor.update_in(cx, |editor, window, cx| {
 679                        let symbol_range = editor
 680                            .buffer()
 681                            .read(cx)
 682                            .snapshot(cx)
 683                            .outline(None)
 684                            .and_then(|outline| {
 685                                outline
 686                                    .find_most_similar(&symbol_name)
 687                                    .map(|(_, item)| item.range.clone())
 688                            })
 689                            .context("Could not find matching symbol")?;
 690
 691                        editor.change_selections(
 692                            SelectionEffects::scroll(Autoscroll::center()),
 693                            window,
 694                            cx,
 695                            |s| s.select_anchor_ranges([symbol_range.start..symbol_range.start]),
 696                        );
 697                        anyhow::Ok(())
 698                    })
 699                })
 700                .detach_and_log_err(cx);
 701        }
 702        Some(MentionLink::Selection(path, line_range)) => {
 703            let open_task = workspace.update(cx, |workspace, cx| {
 704                workspace.open_path(path, None, true, window, cx)
 705            });
 706            window
 707                .spawn(cx, async move |cx| {
 708                    let active_editor = open_task
 709                        .await?
 710                        .downcast::<Editor>()
 711                        .context("Item is not an editor")?;
 712                    active_editor.update_in(cx, |editor, window, cx| {
 713                        editor.change_selections(
 714                            SelectionEffects::scroll(Autoscroll::center()),
 715                            window,
 716                            cx,
 717                            |s| {
 718                                s.select_ranges([Point::new(line_range.start as u32, 0)
 719                                    ..Point::new(line_range.start as u32, 0)])
 720                            },
 721                        );
 722                        anyhow::Ok(())
 723                    })
 724                })
 725                .detach_and_log_err(cx);
 726        }
 727        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 728            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 729                panel.update(cx, |panel, cx| {
 730                    panel
 731                        .open_thread_by_id(&thread_id, window, cx)
 732                        .detach_and_log_err(cx)
 733                });
 734            }
 735        }),
 736        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 737            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 738                panel.update(cx, |panel, cx| {
 739                    panel
 740                        .open_saved_prompt_editor(path, window, cx)
 741                        .detach_and_log_err(cx);
 742                });
 743            }
 744        }),
 745        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 746        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 747            Box::new(OpenRulesLibrary {
 748                prompt_to_select: Some(prompt_id.0),
 749            }),
 750            cx,
 751        ),
 752        None => cx.open_url(&text),
 753    }
 754}
 755
 756struct EditingMessageState {
 757    editor: Entity<Editor>,
 758    context_strip: Entity<ContextStrip>,
 759    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 760    last_estimated_token_count: Option<u64>,
 761    _subscriptions: [Subscription; 2],
 762    _update_token_count_task: Option<Task<()>>,
 763}
 764
 765impl ActiveThread {
 766    pub fn new(
 767        thread: Entity<Thread>,
 768        thread_store: Entity<ThreadStore>,
 769        text_thread_store: Entity<TextThreadStore>,
 770        context_store: Entity<ContextStore>,
 771        language_registry: Arc<LanguageRegistry>,
 772        workspace: WeakEntity<Workspace>,
 773        window: &mut Window,
 774        cx: &mut Context<Self>,
 775    ) -> Self {
 776        let subscriptions = vec![
 777            cx.observe(&thread, |_, _, cx| cx.notify()),
 778            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 779            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 780            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 781        ];
 782
 783        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 784            let this = cx.entity().downgrade();
 785            move |ix, window: &mut Window, cx: &mut App| {
 786                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 787                    .unwrap()
 788            }
 789        });
 790
 791        let workspace_subscription = if let Some(workspace) = workspace.upgrade() {
 792            Some(cx.observe_release(&workspace, |this, _, cx| {
 793                this.dismiss_notifications(cx);
 794            }))
 795        } else {
 796            None
 797        };
 798
 799        let mut this = Self {
 800            language_registry,
 801            thread_store,
 802            text_thread_store,
 803            context_store,
 804            thread: thread.clone(),
 805            workspace,
 806            save_thread_task: None,
 807            messages: Vec::new(),
 808            rendered_messages_by_id: HashMap::default(),
 809            rendered_tool_uses: HashMap::default(),
 810            expanded_tool_uses: HashMap::default(),
 811            expanded_thinking_segments: HashMap::default(),
 812            expanded_code_blocks: HashMap::default(),
 813            list_state: list_state.clone(),
 814            scrollbar_state: ScrollbarState::new(list_state),
 815            show_scrollbar: false,
 816            hide_scrollbar_task: None,
 817            editing_message: None,
 818            last_error: None,
 819            copied_code_block_ids: HashSet::default(),
 820            notifications: Vec::new(),
 821            _subscriptions: subscriptions,
 822            notification_subscriptions: HashMap::default(),
 823            open_feedback_editors: HashMap::default(),
 824            _load_edited_message_context_task: None,
 825        };
 826
 827        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 828            let rendered_message = RenderedMessage::from_segments(
 829                &message.segments,
 830                this.language_registry.clone(),
 831                cx,
 832            );
 833            this.push_rendered_message(message.id, rendered_message);
 834
 835            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 836                this.render_tool_use_markdown(
 837                    tool_use.id.clone(),
 838                    tool_use.ui_text.clone(),
 839                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 840                    tool_use.status.text(),
 841                    cx,
 842                );
 843            }
 844        }
 845
 846        if let Some(subscription) = workspace_subscription {
 847            this._subscriptions.push(subscription);
 848        }
 849
 850        this
 851    }
 852
 853    pub fn thread(&self) -> &Entity<Thread> {
 854        &self.thread
 855    }
 856
 857    pub fn is_empty(&self) -> bool {
 858        self.messages.is_empty()
 859    }
 860
 861    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 862        self.thread.read(cx).summary()
 863    }
 864
 865    pub fn regenerate_summary(&self, cx: &mut App) {
 866        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 867    }
 868
 869    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 870        self.last_error.take();
 871        self.thread.update(cx, |thread, cx| {
 872            thread.cancel_last_completion(Some(window.window_handle()), cx)
 873        })
 874    }
 875
 876    pub fn last_error(&self) -> Option<ThreadError> {
 877        self.last_error.clone()
 878    }
 879
 880    pub fn clear_last_error(&mut self) {
 881        self.last_error.take();
 882    }
 883
 884    /// Returns the editing message id and the estimated token count in the content
 885    pub fn editing_message_id(&self) -> Option<(MessageId, u64)> {
 886        self.editing_message
 887            .as_ref()
 888            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 889    }
 890
 891    pub fn context_store(&self) -> &Entity<ContextStore> {
 892        &self.context_store
 893    }
 894
 895    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 896        &self.thread_store
 897    }
 898
 899    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 900        &self.text_thread_store
 901    }
 902
 903    fn push_rendered_message(&mut self, id: MessageId, rendered_message: RenderedMessage) {
 904        let old_len = self.messages.len();
 905        self.messages.push(id);
 906        self.list_state.splice(old_len..old_len, 1);
 907        self.rendered_messages_by_id.insert(id, rendered_message);
 908    }
 909
 910    fn deleted_message(&mut self, id: &MessageId) {
 911        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 912            return;
 913        };
 914        self.messages.remove(index);
 915        self.list_state.splice(index..index + 1, 0);
 916        self.rendered_messages_by_id.remove(id);
 917    }
 918
 919    fn render_tool_use_markdown(
 920        &mut self,
 921        tool_use_id: LanguageModelToolUseId,
 922        tool_label: impl Into<SharedString>,
 923        tool_input: &str,
 924        tool_output: SharedString,
 925        cx: &mut Context<Self>,
 926    ) {
 927        let rendered = self
 928            .rendered_tool_uses
 929            .entry(tool_use_id.clone())
 930            .or_insert_with(|| RenderedToolUse {
 931                label: cx.new(|cx| {
 932                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 933                }),
 934                input: cx.new(|cx| {
 935                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 936                }),
 937                output: cx.new(|cx| {
 938                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 939                }),
 940            });
 941
 942        rendered.label.update(cx, |this, cx| {
 943            this.replace(tool_label, cx);
 944        });
 945        rendered.input.update(cx, |this, cx| {
 946            this.replace(
 947                MarkdownCodeBlock {
 948                    tag: "json",
 949                    text: tool_input,
 950                }
 951                .to_string(),
 952                cx,
 953            );
 954        });
 955        rendered.output.update(cx, |this, cx| {
 956            this.replace(tool_output, cx);
 957        });
 958    }
 959
 960    fn handle_thread_event(
 961        &mut self,
 962        _thread: &Entity<Thread>,
 963        event: &ThreadEvent,
 964        window: &mut Window,
 965        cx: &mut Context<Self>,
 966    ) {
 967        match event {
 968            ThreadEvent::CancelEditing => {
 969                if self.editing_message.is_some() {
 970                    self.cancel_editing_message(&menu::Cancel, window, cx);
 971                }
 972            }
 973            ThreadEvent::ShowError(error) => {
 974                self.last_error = Some(error.clone());
 975            }
 976            ThreadEvent::NewRequest => {
 977                cx.notify();
 978            }
 979            ThreadEvent::CompletionCanceled => {
 980                self.thread.update(cx, |thread, cx| {
 981                    thread.project().update(cx, |project, cx| {
 982                        project.set_agent_location(None, cx);
 983                    })
 984                });
 985                self.workspace
 986                    .update(cx, |workspace, cx| {
 987                        if workspace.is_being_followed(CollaboratorId::Agent) {
 988                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 989                        }
 990                    })
 991                    .ok();
 992                cx.notify();
 993            }
 994            ThreadEvent::StreamedCompletion
 995            | ThreadEvent::SummaryGenerated
 996            | ThreadEvent::SummaryChanged => {
 997                self.save_thread(cx);
 998            }
 999            ThreadEvent::Stopped(reason) => {
1000                match reason {
1001                    Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
1002                        let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
1003                        self.notify_with_sound(
1004                            if used_tools {
1005                                "Finished running tools"
1006                            } else {
1007                                "New message"
1008                            },
1009                            IconName::ZedAssistant,
1010                            window,
1011                            cx,
1012                        );
1013                    }
1014                    Ok(StopReason::ToolUse) => {
1015                        // Don't notify for intermediate tool use
1016                    }
1017                    Ok(StopReason::Refusal) => {
1018                        self.notify_with_sound(
1019                            "Language model refused to respond",
1020                            IconName::Warning,
1021                            window,
1022                            cx,
1023                        );
1024                    }
1025                    Err(error) => {
1026                        self.notify_with_sound(
1027                            "Agent stopped due to an error",
1028                            IconName::Warning,
1029                            window,
1030                            cx,
1031                        );
1032
1033                        let error_message = error
1034                            .chain()
1035                            .map(|err| err.to_string())
1036                            .collect::<Vec<_>>()
1037                            .join("\n");
1038                        self.last_error = Some(ThreadError::Message {
1039                            header: "Error".into(),
1040                            message: error_message.into(),
1041                        });
1042                    }
1043                }
1044            }
1045            ThreadEvent::ToolConfirmationNeeded => {
1046                self.notify_with_sound("Waiting for tool confirmation", IconName::Info, window, cx);
1047            }
1048            ThreadEvent::ToolUseLimitReached => {
1049                self.notify_with_sound(
1050                    "Consecutive tool use limit reached.",
1051                    IconName::Warning,
1052                    window,
1053                    cx,
1054                );
1055            }
1056            ThreadEvent::StreamedAssistantText(message_id, text) => {
1057                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1058                    rendered_message.append_text(text, cx);
1059                }
1060            }
1061            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1062                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1063                    rendered_message.append_thinking(text, cx);
1064                }
1065            }
1066            ThreadEvent::MessageAdded(message_id) => {
1067                self.clear_last_error();
1068                if let Some(rendered_message) = self.thread.update(cx, |thread, cx| {
1069                    thread.message(*message_id).map(|message| {
1070                        RenderedMessage::from_segments(
1071                            &message.segments,
1072                            self.language_registry.clone(),
1073                            cx,
1074                        )
1075                    })
1076                }) {
1077                    self.push_rendered_message(*message_id, rendered_message);
1078                }
1079
1080                self.save_thread(cx);
1081                cx.notify();
1082            }
1083            ThreadEvent::MessageEdited(message_id) => {
1084                self.clear_last_error();
1085                if let Some(index) = self.messages.iter().position(|id| id == message_id) {
1086                    if let Some(rendered_message) = self.thread.update(cx, |thread, cx| {
1087                        thread.message(*message_id).map(|message| {
1088                            let mut rendered_message = RenderedMessage {
1089                                language_registry: self.language_registry.clone(),
1090                                segments: Vec::with_capacity(message.segments.len()),
1091                            };
1092                            for segment in &message.segments {
1093                                rendered_message.push_segment(segment, cx);
1094                            }
1095                            rendered_message
1096                        })
1097                    }) {
1098                        self.list_state.splice(index..index + 1, 1);
1099                        self.rendered_messages_by_id
1100                            .insert(*message_id, rendered_message);
1101                        self.scroll_to_bottom(cx);
1102                        self.save_thread(cx);
1103                        cx.notify();
1104                    }
1105                }
1106            }
1107            ThreadEvent::MessageDeleted(message_id) => {
1108                self.deleted_message(message_id);
1109                self.save_thread(cx);
1110                cx.notify();
1111            }
1112            ThreadEvent::UsePendingTools { tool_uses } => {
1113                for tool_use in tool_uses {
1114                    self.render_tool_use_markdown(
1115                        tool_use.id.clone(),
1116                        tool_use.ui_text.clone(),
1117                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1118                        "".into(),
1119                        cx,
1120                    );
1121                }
1122            }
1123            ThreadEvent::StreamedToolUse {
1124                tool_use_id,
1125                ui_text,
1126                input,
1127            } => {
1128                self.render_tool_use_markdown(
1129                    tool_use_id.clone(),
1130                    ui_text.clone(),
1131                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1132                    "".into(),
1133                    cx,
1134                );
1135            }
1136            ThreadEvent::ToolFinished {
1137                pending_tool_use, ..
1138            } => {
1139                if let Some(tool_use) = pending_tool_use {
1140                    self.render_tool_use_markdown(
1141                        tool_use.id.clone(),
1142                        tool_use.ui_text.clone(),
1143                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1144                        self.thread
1145                            .read(cx)
1146                            .output_for_tool(&tool_use.id)
1147                            .map(|output| output.clone().into())
1148                            .unwrap_or("".into()),
1149                        cx,
1150                    );
1151                }
1152            }
1153            ThreadEvent::CheckpointChanged => cx.notify(),
1154            ThreadEvent::ReceivedTextChunk => {}
1155            ThreadEvent::InvalidToolInput {
1156                tool_use_id,
1157                ui_text,
1158                invalid_input_json,
1159            } => {
1160                self.render_tool_use_markdown(
1161                    tool_use_id.clone(),
1162                    ui_text,
1163                    invalid_input_json,
1164                    self.thread
1165                        .read(cx)
1166                        .output_for_tool(tool_use_id)
1167                        .map(|output| output.clone().into())
1168                        .unwrap_or("".into()),
1169                    cx,
1170                );
1171            }
1172            ThreadEvent::MissingToolUse {
1173                tool_use_id,
1174                ui_text,
1175            } => {
1176                self.render_tool_use_markdown(
1177                    tool_use_id.clone(),
1178                    ui_text,
1179                    "",
1180                    self.thread
1181                        .read(cx)
1182                        .output_for_tool(tool_use_id)
1183                        .map(|output| output.clone().into())
1184                        .unwrap_or("".into()),
1185                    cx,
1186                );
1187            }
1188            ThreadEvent::ProfileChanged => {
1189                self.save_thread(cx);
1190                cx.notify();
1191            }
1192        }
1193    }
1194
1195    fn handle_rules_loading_error(
1196        &mut self,
1197        _thread_store: Entity<ThreadStore>,
1198        error: &RulesLoadingError,
1199        cx: &mut Context<Self>,
1200    ) {
1201        self.last_error = Some(ThreadError::Message {
1202            header: "Error loading rules file".into(),
1203            message: error.message.clone(),
1204        });
1205        cx.notify();
1206    }
1207
1208    fn play_notification_sound(&self, window: &Window, cx: &mut App) {
1209        let settings = AgentSettings::get_global(cx);
1210        if settings.play_sound_when_agent_done && !window.is_window_active() {
1211            Audio::play_sound(Sound::AgentDone, cx);
1212        }
1213    }
1214
1215    fn show_notification(
1216        &mut self,
1217        caption: impl Into<SharedString>,
1218        icon: IconName,
1219        window: &mut Window,
1220        cx: &mut Context<ActiveThread>,
1221    ) {
1222        if window.is_window_active() || !self.notifications.is_empty() {
1223            return;
1224        }
1225
1226        let title = self.thread.read(cx).summary().unwrap_or("Agent Panel");
1227
1228        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1229            NotifyWhenAgentWaiting::PrimaryScreen => {
1230                if let Some(primary) = cx.primary_display() {
1231                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1232                }
1233            }
1234            NotifyWhenAgentWaiting::AllScreens => {
1235                let caption = caption.into();
1236                for screen in cx.displays() {
1237                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1238                }
1239            }
1240            NotifyWhenAgentWaiting::Never => {
1241                // Don't show anything
1242            }
1243        }
1244    }
1245
1246    fn notify_with_sound(
1247        &mut self,
1248        caption: impl Into<SharedString>,
1249        icon: IconName,
1250        window: &mut Window,
1251        cx: &mut Context<ActiveThread>,
1252    ) {
1253        self.play_notification_sound(window, cx);
1254        self.show_notification(caption, icon, window, cx);
1255    }
1256
1257    fn pop_up(
1258        &mut self,
1259        icon: IconName,
1260        caption: SharedString,
1261        title: SharedString,
1262        window: &mut Window,
1263        screen: Rc<dyn PlatformDisplay>,
1264        cx: &mut Context<'_, ActiveThread>,
1265    ) {
1266        let options = AgentNotification::window_options(screen, cx);
1267
1268        let project_name = self.workspace.upgrade().and_then(|workspace| {
1269            workspace
1270                .read(cx)
1271                .project()
1272                .read(cx)
1273                .visible_worktrees(cx)
1274                .next()
1275                .map(|worktree| worktree.read(cx).root_name().to_string())
1276        });
1277
1278        if let Some(screen_window) = cx
1279            .open_window(options, |_, cx| {
1280                cx.new(|_| {
1281                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1282                })
1283            })
1284            .log_err()
1285        {
1286            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1287                self.notification_subscriptions
1288                    .entry(screen_window)
1289                    .or_insert_with(Vec::new)
1290                    .push(cx.subscribe_in(&pop_up, window, {
1291                        |this, _, event, window, cx| match event {
1292                            AgentNotificationEvent::Accepted => {
1293                                let handle = window.window_handle();
1294                                cx.activate(true);
1295
1296                                let workspace_handle = this.workspace.clone();
1297
1298                                // If there are multiple Zed windows, activate the correct one.
1299                                cx.defer(move |cx| {
1300                                    handle
1301                                        .update(cx, |_view, window, _cx| {
1302                                            window.activate_window();
1303
1304                                            if let Some(workspace) = workspace_handle.upgrade() {
1305                                                workspace.update(_cx, |workspace, cx| {
1306                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1307                                                });
1308                                            }
1309                                        })
1310                                        .log_err();
1311                                });
1312
1313                                this.dismiss_notifications(cx);
1314                            }
1315                            AgentNotificationEvent::Dismissed => {
1316                                this.dismiss_notifications(cx);
1317                            }
1318                        }
1319                    }));
1320
1321                self.notifications.push(screen_window);
1322
1323                // If the user manually refocuses the original window, dismiss the popup.
1324                self.notification_subscriptions
1325                    .entry(screen_window)
1326                    .or_insert_with(Vec::new)
1327                    .push({
1328                        let pop_up_weak = pop_up.downgrade();
1329
1330                        cx.observe_window_activation(window, move |_, window, cx| {
1331                            if window.is_window_active() {
1332                                if let Some(pop_up) = pop_up_weak.upgrade() {
1333                                    pop_up.update(cx, |_, cx| {
1334                                        cx.emit(AgentNotificationEvent::Dismissed);
1335                                    });
1336                                }
1337                            }
1338                        })
1339                    });
1340            }
1341        }
1342    }
1343
1344    /// Spawns a task to save the active thread.
1345    ///
1346    /// Only one task to save the thread will be in flight at a time.
1347    fn save_thread(&mut self, cx: &mut Context<Self>) {
1348        let thread = self.thread.clone();
1349        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1350            let task = this
1351                .update(cx, |this, cx| {
1352                    this.thread_store
1353                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1354                })
1355                .ok();
1356
1357            if let Some(task) = task {
1358                task.await.log_err();
1359            }
1360        }));
1361    }
1362
1363    fn start_editing_message(
1364        &mut self,
1365        message_id: MessageId,
1366        message_text: impl Into<Arc<str>>,
1367        message_creases: &[MessageCrease],
1368        window: &mut Window,
1369        cx: &mut Context<Self>,
1370    ) {
1371        let editor = crate::message_editor::create_editor(
1372            self.workspace.clone(),
1373            self.context_store.downgrade(),
1374            self.thread_store.downgrade(),
1375            self.text_thread_store.downgrade(),
1376            EDIT_PREVIOUS_MESSAGE_MIN_LINES,
1377            None,
1378            window,
1379            cx,
1380        );
1381        editor.update(cx, |editor, cx| {
1382            editor.set_text(message_text, window, cx);
1383            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1384            editor.focus_handle(cx).focus(window);
1385            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1386        });
1387        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1388            EditorEvent::BufferEdited => {
1389                this.update_editing_message_token_count(true, cx);
1390            }
1391            _ => {}
1392        });
1393
1394        let context_picker_menu_handle = PopoverMenuHandle::default();
1395        let context_strip = cx.new(|cx| {
1396            ContextStrip::new(
1397                self.context_store.clone(),
1398                self.workspace.clone(),
1399                Some(self.thread_store.downgrade()),
1400                Some(self.text_thread_store.downgrade()),
1401                context_picker_menu_handle.clone(),
1402                SuggestContextKind::File,
1403                ModelUsageContext::Thread(self.thread.clone()),
1404                window,
1405                cx,
1406            )
1407        });
1408
1409        let context_strip_subscription =
1410            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1411
1412        self.editing_message = Some((
1413            message_id,
1414            EditingMessageState {
1415                editor: editor.clone(),
1416                context_strip,
1417                context_picker_menu_handle,
1418                last_estimated_token_count: None,
1419                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1420                _update_token_count_task: None,
1421            },
1422        ));
1423        self.update_editing_message_token_count(false, cx);
1424        cx.notify();
1425    }
1426
1427    fn handle_context_strip_event(
1428        &mut self,
1429        _context_strip: &Entity<ContextStrip>,
1430        event: &ContextStripEvent,
1431        window: &mut Window,
1432        cx: &mut Context<Self>,
1433    ) {
1434        if let Some((_, state)) = self.editing_message.as_ref() {
1435            match event {
1436                ContextStripEvent::PickerDismissed
1437                | ContextStripEvent::BlurredEmpty
1438                | ContextStripEvent::BlurredDown => {
1439                    let editor_focus_handle = state.editor.focus_handle(cx);
1440                    window.focus(&editor_focus_handle);
1441                }
1442                ContextStripEvent::BlurredUp => {}
1443            }
1444        }
1445    }
1446
1447    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1448        let Some((message_id, state)) = self.editing_message.as_mut() else {
1449            return;
1450        };
1451
1452        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1453        state._update_token_count_task.take();
1454
1455        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1456            state.last_estimated_token_count.take();
1457            return;
1458        };
1459
1460        let editor = state.editor.clone();
1461        let thread = self.thread.clone();
1462        let message_id = *message_id;
1463
1464        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1465            if debounce {
1466                cx.background_executor()
1467                    .timer(Duration::from_millis(200))
1468                    .await;
1469            }
1470
1471            let token_count = if let Some(task) = cx
1472                .update(|cx| {
1473                    let Some(message) = thread.read(cx).message(message_id) else {
1474                        log::error!("Message that was being edited no longer exists");
1475                        return None;
1476                    };
1477                    let message_text = editor.read(cx).text(cx);
1478
1479                    if message_text.is_empty() && message.loaded_context.is_empty() {
1480                        return None;
1481                    }
1482
1483                    let mut request_message = LanguageModelRequestMessage {
1484                        role: language_model::Role::User,
1485                        content: Vec::new(),
1486                        cache: false,
1487                    };
1488
1489                    message
1490                        .loaded_context
1491                        .add_to_request_message(&mut request_message);
1492
1493                    if !message_text.is_empty() {
1494                        request_message
1495                            .content
1496                            .push(MessageContent::Text(message_text));
1497                    }
1498
1499                    let request = language_model::LanguageModelRequest {
1500                        thread_id: None,
1501                        prompt_id: None,
1502                        intent: None,
1503                        mode: None,
1504                        messages: vec![request_message],
1505                        tools: vec![],
1506                        tool_choice: None,
1507                        stop: vec![],
1508                        temperature: AgentSettings::temperature_for_model(
1509                            &configured_model.model,
1510                            cx,
1511                        ),
1512                        thinking_allowed: true,
1513                    };
1514
1515                    Some(configured_model.model.count_tokens(request, cx))
1516                })
1517                .ok()
1518                .flatten()
1519            {
1520                task.await.log_err()
1521            } else {
1522                Some(0)
1523            };
1524
1525            if let Some(token_count) = token_count {
1526                this.update(cx, |this, cx| {
1527                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1528                        return;
1529                    };
1530
1531                    state.last_estimated_token_count = Some(token_count);
1532                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1533                })
1534                .ok();
1535            };
1536        }));
1537    }
1538
1539    fn toggle_context_picker(
1540        &mut self,
1541        _: &crate::ToggleContextPicker,
1542        window: &mut Window,
1543        cx: &mut Context<Self>,
1544    ) {
1545        if let Some((_, state)) = self.editing_message.as_mut() {
1546            let handle = state.context_picker_menu_handle.clone();
1547            window.defer(cx, move |window, cx| {
1548                handle.toggle(window, cx);
1549            });
1550        }
1551    }
1552
1553    fn remove_all_context(
1554        &mut self,
1555        _: &crate::RemoveAllContext,
1556        _window: &mut Window,
1557        cx: &mut Context<Self>,
1558    ) {
1559        self.context_store.update(cx, |store, cx| store.clear(cx));
1560        cx.notify();
1561    }
1562
1563    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1564        if let Some((_, state)) = self.editing_message.as_mut() {
1565            if state.context_picker_menu_handle.is_deployed() {
1566                cx.propagate();
1567            } else {
1568                state.context_strip.focus_handle(cx).focus(window);
1569            }
1570        }
1571    }
1572
1573    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1574        attach_pasted_images_as_context(&self.context_store, cx);
1575    }
1576
1577    fn cancel_editing_message(
1578        &mut self,
1579        _: &menu::Cancel,
1580        window: &mut Window,
1581        cx: &mut Context<Self>,
1582    ) {
1583        self.editing_message.take();
1584        cx.notify();
1585
1586        if let Some(workspace) = self.workspace.upgrade() {
1587            workspace.update(cx, |workspace, cx| {
1588                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1589                    panel.focus_handle(cx).focus(window);
1590                }
1591            });
1592        }
1593    }
1594
1595    fn confirm_editing_message(
1596        &mut self,
1597        _: &menu::Confirm,
1598        window: &mut Window,
1599        cx: &mut Context<Self>,
1600    ) {
1601        let Some((message_id, state)) = self.editing_message.take() else {
1602            return;
1603        };
1604
1605        let Some(model) = self
1606            .thread
1607            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1608        else {
1609            return;
1610        };
1611
1612        if model.provider.must_accept_terms(cx) {
1613            cx.notify();
1614            return;
1615        }
1616
1617        let edited_text = state.editor.read(cx).text(cx);
1618
1619        let creases = state.editor.update(cx, extract_message_creases);
1620
1621        let new_context = self
1622            .context_store
1623            .read(cx)
1624            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1625
1626        let project = self.thread.read(cx).project().clone();
1627        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1628
1629        let git_store = project.read(cx).git_store().clone();
1630        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1631
1632        let load_context_task = context::load_context(new_context, &project, &prompt_store, cx);
1633        self._load_edited_message_context_task =
1634            Some(cx.spawn_in(window, async move |this, cx| {
1635                let (context, checkpoint) =
1636                    futures::future::join(load_context_task, checkpoint).await;
1637                let _ = this
1638                    .update_in(cx, |this, window, cx| {
1639                        this.thread.update(cx, |thread, cx| {
1640                            thread.edit_message(
1641                                message_id,
1642                                Role::User,
1643                                vec![MessageSegment::Text(edited_text)],
1644                                creases,
1645                                Some(context.loaded_context),
1646                                checkpoint.ok(),
1647                                cx,
1648                            );
1649                            for message_id in this.messages_after(message_id) {
1650                                thread.delete_message(*message_id, cx);
1651                            }
1652                        });
1653
1654                        this.thread.update(cx, |thread, cx| {
1655                            thread.advance_prompt_id();
1656                            thread.cancel_last_completion(Some(window.window_handle()), cx);
1657                            thread.send_to_model(
1658                                model.model,
1659                                CompletionIntent::UserPrompt,
1660                                Some(window.window_handle()),
1661                                cx,
1662                            );
1663                        });
1664                        this._load_edited_message_context_task = None;
1665                        cx.notify();
1666                    })
1667                    .log_err();
1668            }));
1669
1670        if let Some(workspace) = self.workspace.upgrade() {
1671            workspace.update(cx, |workspace, cx| {
1672                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1673                    panel.focus_handle(cx).focus(window);
1674                }
1675            });
1676        }
1677    }
1678
1679    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1680        self.messages
1681            .iter()
1682            .position(|id| *id == message_id)
1683            .map(|index| &self.messages[index + 1..])
1684            .unwrap_or(&[])
1685    }
1686
1687    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1688        self.cancel_editing_message(&menu::Cancel, window, cx);
1689    }
1690
1691    fn handle_regenerate_click(
1692        &mut self,
1693        _: &ClickEvent,
1694        window: &mut Window,
1695        cx: &mut Context<Self>,
1696    ) {
1697        self.confirm_editing_message(&menu::Confirm, window, cx);
1698    }
1699
1700    fn handle_feedback_click(
1701        &mut self,
1702        message_id: MessageId,
1703        feedback: ThreadFeedback,
1704        window: &mut Window,
1705        cx: &mut Context<Self>,
1706    ) {
1707        let report = self.thread.update(cx, |thread, cx| {
1708            thread.report_message_feedback(message_id, feedback, cx)
1709        });
1710
1711        cx.spawn(async move |this, cx| {
1712            report.await?;
1713            this.update(cx, |_this, cx| cx.notify())
1714        })
1715        .detach_and_log_err(cx);
1716
1717        match feedback {
1718            ThreadFeedback::Positive => {
1719                self.open_feedback_editors.remove(&message_id);
1720            }
1721            ThreadFeedback::Negative => {
1722                self.handle_show_feedback_comments(message_id, window, cx);
1723            }
1724        }
1725    }
1726
1727    fn handle_show_feedback_comments(
1728        &mut self,
1729        message_id: MessageId,
1730        window: &mut Window,
1731        cx: &mut Context<Self>,
1732    ) {
1733        let buffer = cx.new(|cx| {
1734            let empty_string = String::new();
1735            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1736        });
1737
1738        let editor = cx.new(|cx| {
1739            let mut editor = Editor::new(
1740                editor::EditorMode::AutoHeight {
1741                    min_lines: 1,
1742                    max_lines: Some(4),
1743                },
1744                buffer,
1745                None,
1746                window,
1747                cx,
1748            );
1749            editor.set_placeholder_text(
1750                "What went wrong? Share your feedback so we can improve.",
1751                cx,
1752            );
1753            editor
1754        });
1755
1756        editor.read(cx).focus_handle(cx).focus(window);
1757        self.open_feedback_editors.insert(message_id, editor);
1758        cx.notify();
1759    }
1760
1761    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1762        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1763            return;
1764        };
1765
1766        let report_task = self.thread.update(cx, |thread, cx| {
1767            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1768        });
1769
1770        let comments = editor.read(cx).text(cx);
1771        if !comments.is_empty() {
1772            let thread_id = self.thread.read(cx).id().clone();
1773            let comments_value = String::from(comments.as_str());
1774
1775            let message_content = self
1776                .thread
1777                .read(cx)
1778                .message(message_id)
1779                .map(|msg| msg.to_string())
1780                .unwrap_or_default();
1781
1782            telemetry::event!(
1783                "Assistant Thread Feedback Comments",
1784                thread_id,
1785                message_id = message_id.as_usize(),
1786                message_content,
1787                comments = comments_value
1788            );
1789
1790            self.open_feedback_editors.remove(&message_id);
1791
1792            cx.spawn(async move |this, cx| {
1793                report_task.await?;
1794                this.update(cx, |_this, cx| cx.notify())
1795            })
1796            .detach_and_log_err(cx);
1797        }
1798    }
1799
1800    fn render_edit_message_editor(
1801        &self,
1802        state: &EditingMessageState,
1803        _window: &mut Window,
1804        cx: &Context<Self>,
1805    ) -> impl IntoElement {
1806        let settings = ThemeSettings::get_global(cx);
1807        let font_size = TextSize::Small
1808            .rems(cx)
1809            .to_pixels(settings.agent_font_size(cx));
1810        let line_height = font_size * 1.75;
1811
1812        let colors = cx.theme().colors();
1813
1814        let text_style = TextStyle {
1815            color: colors.text,
1816            font_family: settings.buffer_font.family.clone(),
1817            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1818            font_features: settings.buffer_font.features.clone(),
1819            font_size: font_size.into(),
1820            line_height: line_height.into(),
1821            ..Default::default()
1822        };
1823
1824        v_flex()
1825            .key_context("EditMessageEditor")
1826            .on_action(cx.listener(Self::toggle_context_picker))
1827            .on_action(cx.listener(Self::remove_all_context))
1828            .on_action(cx.listener(Self::move_up))
1829            .on_action(cx.listener(Self::cancel_editing_message))
1830            .on_action(cx.listener(Self::confirm_editing_message))
1831            .capture_action(cx.listener(Self::paste))
1832            .min_h_6()
1833            .w_full()
1834            .flex_grow()
1835            .gap_2()
1836            .child(state.context_strip.clone())
1837            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1838                &state.editor,
1839                EditorStyle {
1840                    background: colors.editor_background,
1841                    local_player: cx.theme().players().local(),
1842                    text: text_style,
1843                    syntax: cx.theme().syntax().clone(),
1844                    ..Default::default()
1845                },
1846            )))
1847    }
1848
1849    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1850        let message_id = self.messages[ix];
1851        let workspace = self.workspace.clone();
1852        let thread = self.thread.read(cx);
1853
1854        let is_first_message = ix == 0;
1855        let is_last_message = ix == self.messages.len() - 1;
1856
1857        let Some(message) = thread.message(message_id) else {
1858            return Empty.into_any();
1859        };
1860
1861        let is_generating = thread.is_generating();
1862        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1863
1864        let loading_dots = (is_generating && is_last_message).then(|| {
1865            h_flex()
1866                .h_8()
1867                .my_3()
1868                .mx_5()
1869                .when(is_generating_stale || message.is_hidden, |this| {
1870                    this.child(LoadingLabel::new("").size(LabelSize::Small))
1871                })
1872        });
1873
1874        if message.is_hidden {
1875            return div().children(loading_dots).into_any();
1876        }
1877
1878        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1879            return Empty.into_any();
1880        };
1881
1882        // Get all the data we need from thread before we start using it in closures
1883        let checkpoint = thread.checkpoint_for_message(message_id);
1884        let configured_model = thread.configured_model().map(|m| m.model);
1885        let added_context = thread
1886            .context_for_message(message_id)
1887            .map(|context| AddedContext::new_attached(context, configured_model.as_ref(), cx))
1888            .collect::<Vec<_>>();
1889
1890        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1891        let has_tool_uses = !tool_uses.is_empty();
1892
1893        let editing_message_state = self
1894            .editing_message
1895            .as_ref()
1896            .filter(|(id, _)| *id == message_id)
1897            .map(|(_, state)| state);
1898
1899        let (editor_bg_color, panel_bg) = {
1900            let colors = cx.theme().colors();
1901            (colors.editor_background, colors.panel_background)
1902        };
1903
1904        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1905            .icon_size(IconSize::XSmall)
1906            .icon_color(Color::Ignored)
1907            .tooltip(Tooltip::text("Open Thread as Markdown"))
1908            .on_click({
1909                let thread = self.thread.clone();
1910                let workspace = self.workspace.clone();
1911                move |_, window, cx| {
1912                    if let Some(workspace) = workspace.upgrade() {
1913                        open_active_thread_as_markdown(thread.clone(), workspace, window, cx)
1914                            .detach_and_log_err(cx);
1915                    }
1916                }
1917            });
1918
1919        let scroll_to_top = IconButton::new(("scroll_to_top", ix), IconName::ArrowUpAlt)
1920            .icon_size(IconSize::XSmall)
1921            .icon_color(Color::Ignored)
1922            .tooltip(Tooltip::text("Scroll To Top"))
1923            .on_click(cx.listener(move |this, _, _, cx| {
1924                this.scroll_to_top(cx);
1925            }));
1926
1927        let show_feedback = thread.is_turn_end(ix);
1928        let feedback_container = h_flex()
1929            .group("feedback_container")
1930            .mt_1()
1931            .py_2()
1932            .px(RESPONSE_PADDING_X)
1933            .mr_1()
1934            .opacity(0.4)
1935            .hover(|style| style.opacity(1.))
1936            .gap_1p5()
1937            .flex_wrap()
1938            .justify_end();
1939        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1940            Some(feedback) => feedback_container
1941                .child(
1942                    div().visible_on_hover("feedback_container").child(
1943                        Label::new(match feedback {
1944                            ThreadFeedback::Positive => "Thanks for your feedback!",
1945                            ThreadFeedback::Negative => {
1946                                "We appreciate your feedback and will use it to improve."
1947                            }
1948                        })
1949                    .color(Color::Muted)
1950                    .size(LabelSize::XSmall)
1951                    .truncate())
1952                )
1953                .child(
1954                    h_flex()
1955                        .child(
1956                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1957                                .icon_size(IconSize::XSmall)
1958                                .icon_color(match feedback {
1959                                    ThreadFeedback::Positive => Color::Accent,
1960                                    ThreadFeedback::Negative => Color::Ignored,
1961                                })
1962                                .tooltip(Tooltip::text("Helpful Response"))
1963                                .on_click(cx.listener(move |this, _, window, cx| {
1964                                    this.handle_feedback_click(
1965                                        message_id,
1966                                        ThreadFeedback::Positive,
1967                                        window,
1968                                        cx,
1969                                    );
1970                                })),
1971                        )
1972                        .child(
1973                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1974                                .icon_size(IconSize::XSmall)
1975                                .icon_color(match feedback {
1976                                    ThreadFeedback::Positive => Color::Ignored,
1977                                    ThreadFeedback::Negative => Color::Accent,
1978                                })
1979                                .tooltip(Tooltip::text("Not Helpful"))
1980                                .on_click(cx.listener(move |this, _, window, cx| {
1981                                    this.handle_feedback_click(
1982                                        message_id,
1983                                        ThreadFeedback::Negative,
1984                                        window,
1985                                        cx,
1986                                    );
1987                                })),
1988                        )
1989                        .child(open_as_markdown),
1990                )
1991                .into_any_element(),
1992            None if AgentSettings::get_global(cx).enable_feedback =>
1993                feedback_container
1994                .child(
1995                    div().visible_on_hover("feedback_container").child(
1996                        Label::new(
1997                            "Rating the thread sends all of your current conversation to the Zed team.",
1998                        )
1999                        .color(Color::Muted)
2000                    .size(LabelSize::XSmall)
2001                    .truncate())
2002                )
2003                .child(
2004                    h_flex()
2005                        .child(
2006                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
2007                                .icon_size(IconSize::XSmall)
2008                                .icon_color(Color::Ignored)
2009                                .tooltip(Tooltip::text("Helpful Response"))
2010                                .on_click(cx.listener(move |this, _, window, cx| {
2011                                    this.handle_feedback_click(
2012                                        message_id,
2013                                        ThreadFeedback::Positive,
2014                                        window,
2015                                        cx,
2016                                    );
2017                                })),
2018                        )
2019                        .child(
2020                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
2021                                .icon_size(IconSize::XSmall)
2022                                .icon_color(Color::Ignored)
2023                                .tooltip(Tooltip::text("Not Helpful"))
2024                                .on_click(cx.listener(move |this, _, window, cx| {
2025                                    this.handle_feedback_click(
2026                                        message_id,
2027                                        ThreadFeedback::Negative,
2028                                        window,
2029                                        cx,
2030                                    );
2031                                })),
2032                        )
2033                        .child(open_as_markdown)
2034                        .child(scroll_to_top),
2035                )
2036                .into_any_element(),
2037            None => feedback_container
2038                .child(h_flex()
2039                    .child(open_as_markdown))
2040                    .child(scroll_to_top)
2041                .into_any_element(),
2042        };
2043
2044        let message_is_empty = message.should_display_content();
2045        let has_content = !message_is_empty || !added_context.is_empty();
2046
2047        let message_content = has_content.then(|| {
2048            if let Some(state) = editing_message_state.as_ref() {
2049                self.render_edit_message_editor(state, window, cx)
2050                    .into_any_element()
2051            } else {
2052                v_flex()
2053                    .w_full()
2054                    .gap_1()
2055                    .when(!added_context.is_empty(), |parent| {
2056                        parent.child(h_flex().flex_wrap().gap_1().children(
2057                            added_context.into_iter().map(|added_context| {
2058                                let context = added_context.handle.clone();
2059                                ContextPill::added(added_context, false, false, None).on_click(
2060                                    Rc::new(cx.listener({
2061                                        let workspace = workspace.clone();
2062                                        move |_, _, window, cx| {
2063                                            if let Some(workspace) = workspace.upgrade() {
2064                                                open_context(&context, workspace, window, cx);
2065                                                cx.notify();
2066                                            }
2067                                        }
2068                                    })),
2069                                )
2070                            }),
2071                        ))
2072                    })
2073                    .when(!message_is_empty, |parent| {
2074                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
2075                            message_id,
2076                            rendered_message,
2077                            has_tool_uses,
2078                            workspace.clone(),
2079                            window,
2080                            cx,
2081                        )))
2082                    })
2083                    .into_any_element()
2084            }
2085        });
2086
2087        let styled_message = if message.ui_only {
2088            self.render_ui_notification(message_content, ix, cx)
2089        } else {
2090            match message.role {
2091                Role::User => {
2092                    let colors = cx.theme().colors();
2093                    v_flex()
2094                        .id(("message-container", ix))
2095                        .pt_2()
2096                        .pl_2()
2097                        .pr_2p5()
2098                        .pb_4()
2099                        .child(
2100                            v_flex()
2101                                .id(("user-message", ix))
2102                                .bg(editor_bg_color)
2103                                .rounded_lg()
2104                                .shadow_md()
2105                                .border_1()
2106                                .border_color(colors.border)
2107                                .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2108                                .child(
2109                                    v_flex()
2110                                        .p_2p5()
2111                                        .gap_1()
2112                                        .children(message_content)
2113                                        .when_some(editing_message_state, |this, state| {
2114                                            let focus_handle = state.editor.focus_handle(cx).clone();
2115
2116                                            this.child(
2117                                                h_flex()
2118                                                    .w_full()
2119                                                    .gap_1()
2120                                                    .justify_between()
2121                                                    .flex_wrap()
2122                                                    .child(
2123                                                        h_flex()
2124                                                            .gap_1p5()
2125                                                            .child(
2126                                                                div()
2127                                                                    .opacity(0.8)
2128                                                                    .child(
2129                                                                        Icon::new(IconName::Warning)
2130                                                                            .size(IconSize::Indicator)
2131                                                                            .color(Color::Warning)
2132                                                                    ),
2133                                                            )
2134                                                            .child(
2135                                                                Label::new("Editing will restart the thread from this point.")
2136                                                                    .color(Color::Muted)
2137                                                                    .size(LabelSize::XSmall),
2138                                                            ),
2139                                                    )
2140                                                    .child(
2141                                                        h_flex()
2142                                                            .gap_0p5()
2143                                                            .child(
2144                                                                IconButton::new(
2145                                                                    "cancel-edit-message",
2146                                                                    IconName::Close,
2147                                                                )
2148                                                                .shape(ui::IconButtonShape::Square)
2149                                                                .icon_color(Color::Error)
2150                                                                .icon_size(IconSize::Small)
2151                                                                .tooltip({
2152                                                                    let focus_handle = focus_handle.clone();
2153                                                                    move |window, cx| {
2154                                                                        Tooltip::for_action_in(
2155                                                                            "Cancel Edit",
2156                                                                            &menu::Cancel,
2157                                                                            &focus_handle,
2158                                                                            window,
2159                                                                            cx,
2160                                                                        )
2161                                                                    }
2162                                                                })
2163                                                                .on_click(cx.listener(Self::handle_cancel_click)),
2164                                                            )
2165                                                            .child(
2166                                                                IconButton::new(
2167                                                                    "confirm-edit-message",
2168                                                                    IconName::Return,
2169                                                                )
2170                                                                .disabled(state.editor.read(cx).is_empty(cx))
2171                                                                .shape(ui::IconButtonShape::Square)
2172                                                                .icon_color(Color::Muted)
2173                                                                .icon_size(IconSize::Small)
2174                                                                .tooltip({
2175                                                                    let focus_handle = focus_handle.clone();
2176                                                                    move |window, cx| {
2177                                                                        Tooltip::for_action_in(
2178                                                                            "Regenerate",
2179                                                                            &menu::Confirm,
2180                                                                            &focus_handle,
2181                                                                            window,
2182                                                                            cx,
2183                                                                        )
2184                                                                    }
2185                                                                })
2186                                                                .on_click(
2187                                                                    cx.listener(Self::handle_regenerate_click),
2188                                                                ),
2189                                                            ),
2190                                                    )
2191                                            )
2192                                        }),
2193                                )
2194                                .on_click(cx.listener({
2195                                    let message_creases = message.creases.clone();
2196                                    move |this, _, window, cx| {
2197                                        if let Some(message_text) =
2198                                            this.thread.read(cx).message(message_id).and_then(|message| {
2199                                                message.segments.first().and_then(|segment| {
2200                                                    match segment {
2201                                                        MessageSegment::Text(message_text) => {
2202                                                            Some(Into::<Arc<str>>::into(message_text.as_str()))
2203                                                        }
2204                                                        _ => {
2205                                                            None
2206                                                        }
2207                                                    }
2208                                                })
2209                                            })
2210                                        {
2211                                            this.start_editing_message(
2212                                                message_id,
2213                                                message_text,
2214                                                &message_creases,
2215                                                window,
2216                                                cx,
2217                                            );
2218                                        }
2219                                    }
2220                                })),
2221                        )
2222                }
2223                Role::Assistant => v_flex()
2224                    .id(("message-container", ix))
2225                    .px(RESPONSE_PADDING_X)
2226                    .gap_2()
2227                    .children(message_content)
2228                    .when(has_tool_uses, |parent| {
2229                        parent.children(tool_uses.into_iter().map(|tool_use| {
2230                            self.render_tool_use(tool_use, window, workspace.clone(), cx)
2231                        }))
2232                    }),
2233                Role::System => {
2234                    let colors = cx.theme().colors();
2235                    div().id(("message-container", ix)).py_1().px_2().child(
2236                        v_flex()
2237                            .bg(colors.editor_background)
2238                            .rounded_sm()
2239                            .child(div().p_4().children(message_content)),
2240                    )
2241                }
2242            }
2243        };
2244
2245        let after_editing_message = self
2246            .editing_message
2247            .as_ref()
2248            .map_or(false, |(editing_message_id, _)| {
2249                message_id > *editing_message_id
2250            });
2251
2252        let backdrop = div()
2253            .id(("backdrop", ix))
2254            .size_full()
2255            .absolute()
2256            .inset_0()
2257            .bg(panel_bg)
2258            .opacity(0.8)
2259            .block_mouse_except_scroll()
2260            .on_click(cx.listener(Self::handle_cancel_click));
2261
2262        v_flex()
2263            .w_full()
2264            .map(|parent| {
2265                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2266                    let mut is_pending = false;
2267                    let mut error = None;
2268                    if let Some(last_restore_checkpoint) =
2269                        self.thread.read(cx).last_restore_checkpoint()
2270                    {
2271                        if last_restore_checkpoint.message_id() == message_id {
2272                            match last_restore_checkpoint {
2273                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2274                                LastRestoreCheckpoint::Error { error: err, .. } => {
2275                                    error = Some(err.clone());
2276                                }
2277                            }
2278                        }
2279                    }
2280
2281                    let restore_checkpoint_button =
2282                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2283                            .icon(if error.is_some() {
2284                                IconName::XCircle
2285                            } else {
2286                                IconName::Undo
2287                            })
2288                            .icon_size(IconSize::XSmall)
2289                            .icon_position(IconPosition::Start)
2290                            .icon_color(if error.is_some() {
2291                                Some(Color::Error)
2292                            } else {
2293                                None
2294                            })
2295                            .label_size(LabelSize::XSmall)
2296                            .disabled(is_pending)
2297                            .on_click(cx.listener(move |this, _, _window, cx| {
2298                                this.thread.update(cx, |thread, cx| {
2299                                    thread
2300                                        .restore_checkpoint(checkpoint.clone(), cx)
2301                                        .detach_and_log_err(cx);
2302                                });
2303                            }));
2304
2305                    let restore_checkpoint_button = if is_pending {
2306                        restore_checkpoint_button
2307                            .with_animation(
2308                                ("pulsating-restore-checkpoint-button", ix),
2309                                Animation::new(Duration::from_secs(2))
2310                                    .repeat()
2311                                    .with_easing(pulsating_between(0.6, 1.)),
2312                                |label, delta| label.alpha(delta),
2313                            )
2314                            .into_any_element()
2315                    } else if let Some(error) = error {
2316                        restore_checkpoint_button
2317                            .tooltip(Tooltip::text(error.to_string()))
2318                            .into_any_element()
2319                    } else {
2320                        restore_checkpoint_button.into_any_element()
2321                    };
2322
2323                    parent.child(
2324                        h_flex()
2325                            .pt_2p5()
2326                            .px_2p5()
2327                            .w_full()
2328                            .gap_1()
2329                            .child(ui::Divider::horizontal())
2330                            .child(restore_checkpoint_button)
2331                            .child(ui::Divider::horizontal()),
2332                    )
2333                } else {
2334                    parent
2335                }
2336            })
2337            .when(is_first_message, |parent| {
2338                parent.child(self.render_rules_item(cx))
2339            })
2340            .child(styled_message)
2341            .children(loading_dots)
2342            .when(show_feedback, move |parent| {
2343                parent.child(feedback_items).when_some(
2344                    self.open_feedback_editors.get(&message_id),
2345                    move |parent, feedback_editor| {
2346                        let focus_handle = feedback_editor.focus_handle(cx);
2347                        parent.child(
2348                            v_flex()
2349                                .key_context("AgentFeedbackMessageEditor")
2350                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2351                                    this.open_feedback_editors.remove(&message_id);
2352                                    cx.notify();
2353                                }))
2354                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2355                                    this.submit_feedback_message(message_id, cx);
2356                                    cx.notify();
2357                                }))
2358                                .on_action(cx.listener(Self::confirm_editing_message))
2359                                .mb_2()
2360                                .mx_4()
2361                                .p_2()
2362                                .rounded_md()
2363                                .border_1()
2364                                .border_color(cx.theme().colors().border)
2365                                .bg(cx.theme().colors().editor_background)
2366                                .child(feedback_editor.clone())
2367                                .child(
2368                                    h_flex()
2369                                        .gap_1()
2370                                        .justify_end()
2371                                        .child(
2372                                            Button::new("dismiss-feedback-message", "Cancel")
2373                                                .label_size(LabelSize::Small)
2374                                                .key_binding(
2375                                                    KeyBinding::for_action_in(
2376                                                        &menu::Cancel,
2377                                                        &focus_handle,
2378                                                        window,
2379                                                        cx,
2380                                                    )
2381                                                    .map(|kb| kb.size(rems_from_px(10.))),
2382                                                )
2383                                                .on_click(cx.listener(
2384                                                    move |this, _, _window, cx| {
2385                                                        this.open_feedback_editors
2386                                                            .remove(&message_id);
2387                                                        cx.notify();
2388                                                    },
2389                                                )),
2390                                        )
2391                                        .child(
2392                                            Button::new(
2393                                                "submit-feedback-message",
2394                                                "Share Feedback",
2395                                            )
2396                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2397                                            .label_size(LabelSize::Small)
2398                                            .key_binding(
2399                                                KeyBinding::for_action_in(
2400                                                    &menu::Confirm,
2401                                                    &focus_handle,
2402                                                    window,
2403                                                    cx,
2404                                                )
2405                                                .map(|kb| kb.size(rems_from_px(10.))),
2406                                            )
2407                                            .on_click(
2408                                                cx.listener(move |this, _, _window, cx| {
2409                                                    this.submit_feedback_message(message_id, cx);
2410                                                    cx.notify()
2411                                                }),
2412                                            ),
2413                                        ),
2414                                ),
2415                        )
2416                    },
2417                )
2418            })
2419            .when(after_editing_message, |parent| {
2420                // Backdrop to dim out the whole thread below the editing user message
2421                parent.relative().child(backdrop)
2422            })
2423            .into_any()
2424    }
2425
2426    fn render_message_content(
2427        &self,
2428        message_id: MessageId,
2429        rendered_message: &RenderedMessage,
2430        has_tool_uses: bool,
2431        workspace: WeakEntity<Workspace>,
2432        window: &Window,
2433        cx: &Context<Self>,
2434    ) -> impl IntoElement {
2435        let is_last_message = self.messages.last() == Some(&message_id);
2436        let is_generating = self.thread.read(cx).is_generating();
2437        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2438            rendered_message
2439                .segments
2440                .iter()
2441                .enumerate()
2442                .next_back()
2443                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2444                .map(|(index, _)| index)
2445        } else {
2446            None
2447        };
2448
2449        let message_role = self
2450            .thread
2451            .read(cx)
2452            .message(message_id)
2453            .map(|m| m.role)
2454            .unwrap_or(Role::User);
2455
2456        let is_assistant_message = message_role == Role::Assistant;
2457        let is_user_message = message_role == Role::User;
2458
2459        v_flex()
2460            .text_ui(cx)
2461            .gap_2()
2462            .when(is_user_message, |this| this.text_xs())
2463            .children(
2464                rendered_message.segments.iter().enumerate().map(
2465                    |(index, segment)| match segment {
2466                        RenderedMessageSegment::Thinking {
2467                            content,
2468                            scroll_handle,
2469                        } => self
2470                            .render_message_thinking_segment(
2471                                message_id,
2472                                index,
2473                                content.clone(),
2474                                &scroll_handle,
2475                                Some(index) == pending_thinking_segment_index,
2476                                window,
2477                                cx,
2478                            )
2479                            .into_any_element(),
2480                        RenderedMessageSegment::Text(markdown) => {
2481                            let markdown_element = MarkdownElement::new(
2482                                markdown.clone(),
2483                                if is_user_message {
2484                                    let mut style = default_markdown_style(window, cx);
2485                                    let mut text_style = window.text_style();
2486                                    let theme_settings = ThemeSettings::get_global(cx);
2487
2488                                    let buffer_font = theme_settings.buffer_font.family.clone();
2489                                    let buffer_font_size = TextSize::Small.rems(cx);
2490
2491                                    text_style.refine(&TextStyleRefinement {
2492                                        font_family: Some(buffer_font),
2493                                        font_size: Some(buffer_font_size.into()),
2494                                        ..Default::default()
2495                                    });
2496
2497                                    style.base_text_style = text_style;
2498                                    style
2499                                } else {
2500                                    default_markdown_style(window, cx)
2501                                },
2502                            );
2503
2504                            let markdown_element = if is_assistant_message {
2505                                markdown_element.code_block_renderer(
2506                                    markdown::CodeBlockRenderer::Custom {
2507                                        render: Arc::new({
2508                                            let workspace = workspace.clone();
2509                                            let active_thread = cx.entity();
2510                                            move |kind,
2511                                                  parsed_markdown,
2512                                                  range,
2513                                                  metadata,
2514                                                  window,
2515                                                  cx| {
2516                                                render_markdown_code_block(
2517                                                    message_id,
2518                                                    range.start,
2519                                                    kind,
2520                                                    parsed_markdown,
2521                                                    metadata,
2522                                                    active_thread.clone(),
2523                                                    workspace.clone(),
2524                                                    window,
2525                                                    cx,
2526                                                )
2527                                            }
2528                                        }),
2529                                        transform: Some(Arc::new({
2530                                            let active_thread = cx.entity();
2531
2532                                            move |element, range, _, _, cx| {
2533                                                let is_expanded = active_thread
2534                                                    .read(cx)
2535                                                    .is_codeblock_expanded(message_id, range.start);
2536
2537                                                if is_expanded {
2538                                                    return element;
2539                                                }
2540
2541                                                element
2542                                            }
2543                                        })),
2544                                    },
2545                                )
2546                            } else {
2547                                markdown_element.code_block_renderer(
2548                                    markdown::CodeBlockRenderer::Default {
2549                                        copy_button: false,
2550                                        copy_button_on_hover: false,
2551                                        border: true,
2552                                    },
2553                                )
2554                            };
2555
2556                            div()
2557                                .child(markdown_element.on_url_click({
2558                                    let workspace = self.workspace.clone();
2559                                    move |text, window, cx| {
2560                                        open_markdown_link(text, workspace.clone(), window, cx);
2561                                    }
2562                                }))
2563                                .into_any_element()
2564                        }
2565                    },
2566                ),
2567            )
2568    }
2569
2570    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2571        cx.theme().colors().border.opacity(0.5)
2572    }
2573
2574    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2575        cx.theme()
2576            .colors()
2577            .element_background
2578            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2579    }
2580
2581    fn render_ui_notification(
2582        &self,
2583        message_content: impl IntoIterator<Item = impl IntoElement>,
2584        ix: usize,
2585        cx: &mut Context<Self>,
2586    ) -> Stateful<Div> {
2587        let message = div()
2588            .flex_1()
2589            .min_w_0()
2590            .text_size(TextSize::XSmall.rems(cx))
2591            .text_color(cx.theme().colors().text_muted)
2592            .children(message_content);
2593
2594        div()
2595            .id(("message-container", ix))
2596            .py_1()
2597            .px_2p5()
2598            .child(Banner::new().severity(ui::Severity::Warning).child(message))
2599    }
2600
2601    fn render_message_thinking_segment(
2602        &self,
2603        message_id: MessageId,
2604        ix: usize,
2605        markdown: Entity<Markdown>,
2606        scroll_handle: &ScrollHandle,
2607        pending: bool,
2608        window: &Window,
2609        cx: &Context<Self>,
2610    ) -> impl IntoElement {
2611        let is_open = self
2612            .expanded_thinking_segments
2613            .get(&(message_id, ix))
2614            .copied()
2615            .unwrap_or_default();
2616
2617        let editor_bg = cx.theme().colors().panel_background;
2618
2619        div().map(|this| {
2620            if pending {
2621                this.v_flex()
2622                    .mt_neg_2()
2623                    .mb_1p5()
2624                    .child(
2625                        h_flex()
2626                            .group("disclosure-header")
2627                            .justify_between()
2628                            .child(
2629                                h_flex()
2630                                    .gap_1p5()
2631                                    .child(
2632                                        Icon::new(IconName::ToolBulb)
2633                                            .size(IconSize::Small)
2634                                            .color(Color::Muted),
2635                                    )
2636                                    .child(LoadingLabel::new("Thinking").size(LabelSize::Small)),
2637                            )
2638                            .child(
2639                                h_flex()
2640                                    .gap_1()
2641                                    .child(
2642                                        div().visible_on_hover("disclosure-header").child(
2643                                            Disclosure::new("thinking-disclosure", is_open)
2644                                                .opened_icon(IconName::ChevronUp)
2645                                                .closed_icon(IconName::ChevronDown)
2646                                                .on_click(cx.listener({
2647                                                    move |this, _event, _window, _cx| {
2648                                                        let is_open = this
2649                                                            .expanded_thinking_segments
2650                                                            .entry((message_id, ix))
2651                                                            .or_insert(false);
2652
2653                                                        *is_open = !*is_open;
2654                                                    }
2655                                                })),
2656                                        ),
2657                                    )
2658                                    .child({
2659                                        Icon::new(IconName::ArrowCircle)
2660                                            .color(Color::Accent)
2661                                            .size(IconSize::Small)
2662                                            .with_animation(
2663                                                "arrow-circle",
2664                                                Animation::new(Duration::from_secs(2)).repeat(),
2665                                                |icon, delta| {
2666                                                    icon.transform(Transformation::rotate(
2667                                                        percentage(delta),
2668                                                    ))
2669                                                },
2670                                            )
2671                                    }),
2672                            ),
2673                    )
2674                    .when(!is_open, |this| {
2675                        let gradient_overlay = div()
2676                            .rounded_b_lg()
2677                            .h_full()
2678                            .absolute()
2679                            .w_full()
2680                            .bottom_0()
2681                            .left_0()
2682                            .bg(linear_gradient(
2683                                180.,
2684                                linear_color_stop(editor_bg, 1.),
2685                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2686                            ));
2687
2688                        this.child(
2689                            div()
2690                                .relative()
2691                                .bg(editor_bg)
2692                                .rounded_b_lg()
2693                                .mt_2()
2694                                .pl_4()
2695                                .child(
2696                                    div()
2697                                        .id(("thinking-content", ix))
2698                                        .max_h_20()
2699                                        .track_scroll(scroll_handle)
2700                                        .text_ui_sm(cx)
2701                                        .overflow_hidden()
2702                                        .child(
2703                                            MarkdownElement::new(
2704                                                markdown.clone(),
2705                                                default_markdown_style(window, cx),
2706                                            )
2707                                            .on_url_click({
2708                                                let workspace = self.workspace.clone();
2709                                                move |text, window, cx| {
2710                                                    open_markdown_link(
2711                                                        text,
2712                                                        workspace.clone(),
2713                                                        window,
2714                                                        cx,
2715                                                    );
2716                                                }
2717                                            }),
2718                                        ),
2719                                )
2720                                .child(gradient_overlay),
2721                        )
2722                    })
2723                    .when(is_open, |this| {
2724                        this.child(
2725                            div()
2726                                .id(("thinking-content", ix))
2727                                .h_full()
2728                                .bg(editor_bg)
2729                                .text_ui_sm(cx)
2730                                .child(
2731                                    MarkdownElement::new(
2732                                        markdown.clone(),
2733                                        default_markdown_style(window, cx),
2734                                    )
2735                                    .on_url_click({
2736                                        let workspace = self.workspace.clone();
2737                                        move |text, window, cx| {
2738                                            open_markdown_link(text, workspace.clone(), window, cx);
2739                                        }
2740                                    }),
2741                                ),
2742                        )
2743                    })
2744            } else {
2745                this.v_flex()
2746                    .mt_neg_2()
2747                    .child(
2748                        h_flex()
2749                            .group("disclosure-header")
2750                            .pr_1()
2751                            .justify_between()
2752                            .opacity(0.8)
2753                            .hover(|style| style.opacity(1.))
2754                            .child(
2755                                h_flex()
2756                                    .gap_1p5()
2757                                    .child(
2758                                        Icon::new(IconName::LightBulb)
2759                                            .size(IconSize::XSmall)
2760                                            .color(Color::Muted),
2761                                    )
2762                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2763                            )
2764                            .child(
2765                                div().visible_on_hover("disclosure-header").child(
2766                                    Disclosure::new("thinking-disclosure", is_open)
2767                                        .opened_icon(IconName::ChevronUp)
2768                                        .closed_icon(IconName::ChevronDown)
2769                                        .on_click(cx.listener({
2770                                            move |this, _event, _window, _cx| {
2771                                                let is_open = this
2772                                                    .expanded_thinking_segments
2773                                                    .entry((message_id, ix))
2774                                                    .or_insert(false);
2775
2776                                                *is_open = !*is_open;
2777                                            }
2778                                        })),
2779                                ),
2780                            ),
2781                    )
2782                    .child(
2783                        div()
2784                            .id(("thinking-content", ix))
2785                            .relative()
2786                            .mt_1p5()
2787                            .ml_1p5()
2788                            .pl_2p5()
2789                            .border_l_1()
2790                            .border_color(cx.theme().colors().border_variant)
2791                            .text_ui_sm(cx)
2792                            .when(is_open, |this| {
2793                                this.child(
2794                                    MarkdownElement::new(
2795                                        markdown.clone(),
2796                                        default_markdown_style(window, cx),
2797                                    )
2798                                    .on_url_click({
2799                                        let workspace = self.workspace.clone();
2800                                        move |text, window, cx| {
2801                                            open_markdown_link(text, workspace.clone(), window, cx);
2802                                        }
2803                                    }),
2804                                )
2805                            }),
2806                    )
2807            }
2808        })
2809    }
2810
2811    fn render_tool_use(
2812        &self,
2813        tool_use: ToolUse,
2814        window: &mut Window,
2815        workspace: WeakEntity<Workspace>,
2816        cx: &mut Context<Self>,
2817    ) -> impl IntoElement + use<> {
2818        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2819            return card.render(&tool_use.status, window, workspace, cx);
2820        }
2821
2822        let is_open = self
2823            .expanded_tool_uses
2824            .get(&tool_use.id)
2825            .copied()
2826            .unwrap_or_default();
2827
2828        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2829
2830        let fs = self
2831            .workspace
2832            .upgrade()
2833            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2834        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2835        let needs_confirmation_tools = tool_use.needs_confirmation;
2836
2837        let status_icons = div().child(match &tool_use.status {
2838            ToolUseStatus::NeedsConfirmation => {
2839                let icon = Icon::new(IconName::Warning)
2840                    .color(Color::Warning)
2841                    .size(IconSize::Small);
2842                icon.into_any_element()
2843            }
2844            ToolUseStatus::Pending
2845            | ToolUseStatus::InputStillStreaming
2846            | ToolUseStatus::Running => {
2847                let icon = Icon::new(IconName::ArrowCircle)
2848                    .color(Color::Accent)
2849                    .size(IconSize::Small);
2850                icon.with_animation(
2851                    "arrow-circle",
2852                    Animation::new(Duration::from_secs(2)).repeat(),
2853                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2854                )
2855                .into_any_element()
2856            }
2857            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2858            ToolUseStatus::Error(_) => {
2859                let icon = Icon::new(IconName::Close)
2860                    .color(Color::Error)
2861                    .size(IconSize::Small);
2862                icon.into_any_element()
2863            }
2864        });
2865
2866        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2867        let results_content_container = || v_flex().p_2().gap_0p5();
2868
2869        let results_content = v_flex()
2870            .gap_1()
2871            .child(
2872                results_content_container()
2873                    .child(
2874                        Label::new("Input")
2875                            .size(LabelSize::XSmall)
2876                            .color(Color::Muted)
2877                            .buffer_font(cx),
2878                    )
2879                    .child(
2880                        div()
2881                            .w_full()
2882                            .text_ui_sm(cx)
2883                            .children(rendered_tool_use.as_ref().map(|rendered| {
2884                                MarkdownElement::new(
2885                                    rendered.input.clone(),
2886                                    tool_use_markdown_style(window, cx),
2887                                )
2888                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2889                                    copy_button: false,
2890                                    copy_button_on_hover: false,
2891                                    border: false,
2892                                })
2893                                .on_url_click({
2894                                    let workspace = self.workspace.clone();
2895                                    move |text, window, cx| {
2896                                        open_markdown_link(text, workspace.clone(), window, cx);
2897                                    }
2898                                })
2899                            })),
2900                    ),
2901            )
2902            .map(|container| match tool_use.status {
2903                ToolUseStatus::Finished(_) => container.child(
2904                    results_content_container()
2905                        .border_t_1()
2906                        .border_color(self.tool_card_border_color(cx))
2907                        .child(
2908                            Label::new("Result")
2909                                .size(LabelSize::XSmall)
2910                                .color(Color::Muted)
2911                                .buffer_font(cx),
2912                        )
2913                        .child(div().w_full().text_ui_sm(cx).children(
2914                            rendered_tool_use.as_ref().map(|rendered| {
2915                                MarkdownElement::new(
2916                                    rendered.output.clone(),
2917                                    tool_use_markdown_style(window, cx),
2918                                )
2919                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2920                                    copy_button: false,
2921                                    copy_button_on_hover: false,
2922                                    border: false,
2923                                })
2924                                .on_url_click({
2925                                    let workspace = self.workspace.clone();
2926                                    move |text, window, cx| {
2927                                        open_markdown_link(text, workspace.clone(), window, cx);
2928                                    }
2929                                })
2930                                .into_any_element()
2931                            }),
2932                        )),
2933                ),
2934                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2935                    results_content_container()
2936                        .border_t_1()
2937                        .border_color(self.tool_card_border_color(cx))
2938                        .child(
2939                            h_flex()
2940                                .gap_1()
2941                                .child(
2942                                    Icon::new(IconName::ArrowCircle)
2943                                        .size(IconSize::Small)
2944                                        .color(Color::Accent)
2945                                        .with_animation(
2946                                            "arrow-circle",
2947                                            Animation::new(Duration::from_secs(2)).repeat(),
2948                                            |icon, delta| {
2949                                                icon.transform(Transformation::rotate(percentage(
2950                                                    delta,
2951                                                )))
2952                                            },
2953                                        ),
2954                                )
2955                                .child(
2956                                    Label::new("Running…")
2957                                        .size(LabelSize::XSmall)
2958                                        .color(Color::Muted)
2959                                        .buffer_font(cx),
2960                                ),
2961                        ),
2962                ),
2963                ToolUseStatus::Error(_) => container.child(
2964                    results_content_container()
2965                        .border_t_1()
2966                        .border_color(self.tool_card_border_color(cx))
2967                        .child(
2968                            Label::new("Error")
2969                                .size(LabelSize::XSmall)
2970                                .color(Color::Muted)
2971                                .buffer_font(cx),
2972                        )
2973                        .child(
2974                            div()
2975                                .text_ui_sm(cx)
2976                                .children(rendered_tool_use.as_ref().map(|rendered| {
2977                                    MarkdownElement::new(
2978                                        rendered.output.clone(),
2979                                        tool_use_markdown_style(window, cx),
2980                                    )
2981                                    .on_url_click({
2982                                        let workspace = self.workspace.clone();
2983                                        move |text, window, cx| {
2984                                            open_markdown_link(text, workspace.clone(), window, cx);
2985                                        }
2986                                    })
2987                                    .into_any_element()
2988                                })),
2989                        ),
2990                ),
2991                ToolUseStatus::Pending => container,
2992                ToolUseStatus::NeedsConfirmation => container.child(
2993                    results_content_container()
2994                        .border_t_1()
2995                        .border_color(self.tool_card_border_color(cx))
2996                        .child(
2997                            Label::new("Asking Permission")
2998                                .size(LabelSize::Small)
2999                                .color(Color::Muted)
3000                                .buffer_font(cx),
3001                        ),
3002                ),
3003            });
3004
3005        let gradient_overlay = |color: Hsla| {
3006            div()
3007                .h_full()
3008                .absolute()
3009                .w_12()
3010                .bottom_0()
3011                .map(|element| {
3012                    if is_status_finished {
3013                        element.right_6()
3014                    } else {
3015                        element.right(px(44.))
3016                    }
3017                })
3018                .bg(linear_gradient(
3019                    90.,
3020                    linear_color_stop(color, 1.),
3021                    linear_color_stop(color.opacity(0.2), 0.),
3022                ))
3023        };
3024
3025        v_flex().gap_1().mb_2().map(|element| {
3026            if !needs_confirmation_tools {
3027                element.child(
3028                    v_flex()
3029                        .child(
3030                            h_flex()
3031                                .group("disclosure-header")
3032                                .relative()
3033                                .gap_1p5()
3034                                .justify_between()
3035                                .opacity(0.8)
3036                                .hover(|style| style.opacity(1.))
3037                                .when(!is_status_finished, |this| this.pr_2())
3038                                .child(
3039                                    h_flex()
3040                                        .id("tool-label-container")
3041                                        .gap_1p5()
3042                                        .max_w_full()
3043                                        .overflow_x_scroll()
3044                                        .child(
3045                                            Icon::new(tool_use.icon)
3046                                                .size(IconSize::Small)
3047                                                .color(Color::Muted),
3048                                        )
3049                                        .child(
3050                                            h_flex().pr_8().text_size(rems(0.8125)).children(
3051                                                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| {
3052                                                    open_markdown_link(text, workspace.clone(), window, cx);
3053                                                }}))
3054                                            ),
3055                                        ),
3056                                )
3057                                .child(
3058                                    h_flex()
3059                                        .gap_1()
3060                                        .child(
3061                                            div().visible_on_hover("disclosure-header").child(
3062                                                Disclosure::new("tool-use-disclosure", is_open)
3063                                                    .opened_icon(IconName::ChevronUp)
3064                                                    .closed_icon(IconName::ChevronDown)
3065                                                    .on_click(cx.listener({
3066                                                        let tool_use_id = tool_use.id.clone();
3067                                                        move |this, _event, _window, _cx| {
3068                                                            let is_open = this
3069                                                                .expanded_tool_uses
3070                                                                .entry(tool_use_id.clone())
3071                                                                .or_insert(false);
3072
3073                                                            *is_open = !*is_open;
3074                                                        }
3075                                                    })),
3076                                            ),
3077                                        )
3078                                        .child(status_icons),
3079                                )
3080                                .child(gradient_overlay(cx.theme().colors().panel_background)),
3081                        )
3082                        .map(|parent| {
3083                            if !is_open {
3084                                return parent;
3085                            }
3086
3087                            parent.child(
3088                                v_flex()
3089                                    .mt_1()
3090                                    .border_1()
3091                                    .border_color(self.tool_card_border_color(cx))
3092                                    .bg(cx.theme().colors().editor_background)
3093                                    .rounded_lg()
3094                                    .child(results_content),
3095                            )
3096                        }),
3097                )
3098            } else {
3099                v_flex()
3100                    .mb_2()
3101                    .rounded_lg()
3102                    .border_1()
3103                    .border_color(self.tool_card_border_color(cx))
3104                    .overflow_hidden()
3105                    .child(
3106                        h_flex()
3107                            .group("disclosure-header")
3108                            .relative()
3109                            .justify_between()
3110                            .py_1()
3111                            .map(|element| {
3112                                if is_status_finished {
3113                                    element.pl_2().pr_0p5()
3114                                } else {
3115                                    element.px_2()
3116                                }
3117                            })
3118                            .bg(self.tool_card_header_bg(cx))
3119                            .map(|element| {
3120                                if is_open {
3121                                    element.border_b_1().rounded_t_md()
3122                                } else if needs_confirmation {
3123                                    element.rounded_t_md()
3124                                } else {
3125                                    element.rounded_md()
3126                                }
3127                            })
3128                            .border_color(self.tool_card_border_color(cx))
3129                            .child(
3130                                h_flex()
3131                                    .id("tool-label-container")
3132                                    .gap_1p5()
3133                                    .max_w_full()
3134                                    .overflow_x_scroll()
3135                                    .child(
3136                                        Icon::new(tool_use.icon)
3137                                            .size(IconSize::XSmall)
3138                                            .color(Color::Muted),
3139                                    )
3140                                    .child(
3141                                        h_flex().pr_8().text_ui_sm(cx).children(
3142                                            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| {
3143                                                open_markdown_link(text, workspace.clone(), window, cx);
3144                                            }}))
3145                                        ),
3146                                    ),
3147                            )
3148                            .child(
3149                                h_flex()
3150                                    .gap_1()
3151                                    .child(
3152                                        div().visible_on_hover("disclosure-header").child(
3153                                            Disclosure::new("tool-use-disclosure", is_open)
3154                                                .opened_icon(IconName::ChevronUp)
3155                                                .closed_icon(IconName::ChevronDown)
3156                                                .on_click(cx.listener({
3157                                                    let tool_use_id = tool_use.id.clone();
3158                                                    move |this, _event, _window, _cx| {
3159                                                        let is_open = this
3160                                                            .expanded_tool_uses
3161                                                            .entry(tool_use_id.clone())
3162                                                            .or_insert(false);
3163
3164                                                        *is_open = !*is_open;
3165                                                    }
3166                                                })),
3167                                        ),
3168                                    )
3169                                    .child(status_icons),
3170                            )
3171                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3172                    )
3173                    .map(|parent| {
3174                        if !is_open {
3175                            return parent;
3176                        }
3177
3178                        parent.child(
3179                            v_flex()
3180                                .bg(cx.theme().colors().editor_background)
3181                                .map(|element| {
3182                                    if  needs_confirmation {
3183                                        element.rounded_none()
3184                                    } else {
3185                                        element.rounded_b_lg()
3186                                    }
3187                                })
3188                                .child(results_content),
3189                        )
3190                    })
3191                    .when(needs_confirmation, |this| {
3192                        this.child(
3193                            h_flex()
3194                                .py_1()
3195                                .pl_2()
3196                                .pr_1()
3197                                .gap_1()
3198                                .justify_between()
3199                                .flex_wrap()
3200                                .bg(cx.theme().colors().editor_background)
3201                                .border_t_1()
3202                                .border_color(self.tool_card_border_color(cx))
3203                                .rounded_b_lg()
3204                                .child(
3205                                    div()
3206                                        .min_w(rems_from_px(145.))
3207                                        .child(LoadingLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3208                                    )
3209                                )
3210                                .child(
3211                                    h_flex()
3212                                        .gap_0p5()
3213                                        .child({
3214                                            let tool_id = tool_use.id.clone();
3215                                            Button::new(
3216                                                "always-allow-tool-action",
3217                                                "Always Allow",
3218                                            )
3219                                            .label_size(LabelSize::Small)
3220                                            .icon(IconName::CheckDouble)
3221                                            .icon_position(IconPosition::Start)
3222                                            .icon_size(IconSize::Small)
3223                                            .icon_color(Color::Success)
3224                                            .tooltip(move |window, cx|  {
3225                                                Tooltip::with_meta(
3226                                                    "Never ask for permission",
3227                                                    None,
3228                                                    "Restore the original behavior in your Agent Panel settings",
3229                                                    window,
3230                                                    cx,
3231                                                )
3232                                            })
3233                                            .on_click(cx.listener(
3234                                                move |this, event, window, cx| {
3235                                                    if let Some(fs) = fs.clone() {
3236                                                        update_settings_file::<AgentSettings>(
3237                                                            fs.clone(),
3238                                                            cx,
3239                                                            |settings, _| {
3240                                                                settings.set_always_allow_tool_actions(true);
3241                                                            },
3242                                                        );
3243                                                    }
3244                                                    this.handle_allow_tool(
3245                                                        tool_id.clone(),
3246                                                        event,
3247                                                        window,
3248                                                        cx,
3249                                                    )
3250                                                },
3251                                            ))
3252                                        })
3253                                        .child({
3254                                            let tool_id = tool_use.id.clone();
3255                                            Button::new("allow-tool-action", "Allow")
3256                                                .label_size(LabelSize::Small)
3257                                                .icon(IconName::Check)
3258                                                .icon_position(IconPosition::Start)
3259                                                .icon_size(IconSize::Small)
3260                                                .icon_color(Color::Success)
3261                                                .on_click(cx.listener(
3262                                                    move |this, event, window, cx| {
3263                                                        this.handle_allow_tool(
3264                                                            tool_id.clone(),
3265                                                            event,
3266                                                            window,
3267                                                            cx,
3268                                                        )
3269                                                    },
3270                                                ))
3271                                        })
3272                                        .child({
3273                                            let tool_id = tool_use.id.clone();
3274                                            let tool_name: Arc<str> = tool_use.name.into();
3275                                            Button::new("deny-tool", "Deny")
3276                                                .label_size(LabelSize::Small)
3277                                                .icon(IconName::Close)
3278                                                .icon_position(IconPosition::Start)
3279                                                .icon_size(IconSize::Small)
3280                                                .icon_color(Color::Error)
3281                                                .on_click(cx.listener(
3282                                                    move |this, event, window, cx| {
3283                                                        this.handle_deny_tool(
3284                                                            tool_id.clone(),
3285                                                            tool_name.clone(),
3286                                                            event,
3287                                                            window,
3288                                                            cx,
3289                                                        )
3290                                                    },
3291                                                ))
3292                                        }),
3293                                ),
3294                        )
3295                    })
3296            }
3297        }).into_any_element()
3298    }
3299
3300    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3301        let project_context = self.thread.read(cx).project_context();
3302        let project_context = project_context.borrow();
3303        let Some(project_context) = project_context.as_ref() else {
3304            return div().into_any();
3305        };
3306
3307        let user_rules_text = if project_context.user_rules.is_empty() {
3308            None
3309        } else if project_context.user_rules.len() == 1 {
3310            let user_rules = &project_context.user_rules[0];
3311
3312            match user_rules.title.as_ref() {
3313                Some(title) => Some(format!("Using \"{title}\" user rule")),
3314                None => Some("Using user rule".into()),
3315            }
3316        } else {
3317            Some(format!(
3318                "Using {} user rules",
3319                project_context.user_rules.len()
3320            ))
3321        };
3322
3323        let first_user_rules_id = project_context
3324            .user_rules
3325            .first()
3326            .map(|user_rules| user_rules.uuid.0);
3327
3328        let rules_files = project_context
3329            .worktrees
3330            .iter()
3331            .filter_map(|worktree| worktree.rules_file.as_ref())
3332            .collect::<Vec<_>>();
3333
3334        let rules_file_text = match rules_files.as_slice() {
3335            &[] => None,
3336            &[rules_file] => Some(format!(
3337                "Using project {:?} file",
3338                rules_file.path_in_worktree
3339            )),
3340            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3341        };
3342
3343        if user_rules_text.is_none() && rules_file_text.is_none() {
3344            return div().into_any();
3345        }
3346
3347        v_flex()
3348            .pt_2()
3349            .px_2p5()
3350            .gap_1()
3351            .when_some(user_rules_text, |parent, user_rules_text| {
3352                parent.child(
3353                    h_flex()
3354                        .w_full()
3355                        .child(
3356                            Icon::new(RULES_ICON)
3357                                .size(IconSize::XSmall)
3358                                .color(Color::Disabled),
3359                        )
3360                        .child(
3361                            Label::new(user_rules_text)
3362                                .size(LabelSize::XSmall)
3363                                .color(Color::Muted)
3364                                .truncate()
3365                                .buffer_font(cx)
3366                                .ml_1p5()
3367                                .mr_0p5(),
3368                        )
3369                        .child(
3370                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3371                                .shape(ui::IconButtonShape::Square)
3372                                .icon_size(IconSize::XSmall)
3373                                .icon_color(Color::Ignored)
3374                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3375                                .tooltip(Tooltip::text("View User Rules"))
3376                                .on_click(move |_event, window, cx| {
3377                                    window.dispatch_action(
3378                                        Box::new(OpenRulesLibrary {
3379                                            prompt_to_select: first_user_rules_id,
3380                                        }),
3381                                        cx,
3382                                    )
3383                                }),
3384                        ),
3385                )
3386            })
3387            .when_some(rules_file_text, |parent, rules_file_text| {
3388                parent.child(
3389                    h_flex()
3390                        .w_full()
3391                        .child(
3392                            Icon::new(IconName::File)
3393                                .size(IconSize::XSmall)
3394                                .color(Color::Disabled),
3395                        )
3396                        .child(
3397                            Label::new(rules_file_text)
3398                                .size(LabelSize::XSmall)
3399                                .color(Color::Muted)
3400                                .buffer_font(cx)
3401                                .ml_1p5()
3402                                .mr_0p5(),
3403                        )
3404                        .child(
3405                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3406                                .shape(ui::IconButtonShape::Square)
3407                                .icon_size(IconSize::XSmall)
3408                                .icon_color(Color::Ignored)
3409                                .on_click(cx.listener(Self::handle_open_rules))
3410                                .tooltip(Tooltip::text("View Rules")),
3411                        ),
3412                )
3413            })
3414            .into_any()
3415    }
3416
3417    fn handle_allow_tool(
3418        &mut self,
3419        tool_use_id: LanguageModelToolUseId,
3420        _: &ClickEvent,
3421        window: &mut Window,
3422        cx: &mut Context<Self>,
3423    ) {
3424        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3425            .thread
3426            .read(cx)
3427            .pending_tool(&tool_use_id)
3428            .map(|tool_use| tool_use.status.clone())
3429        {
3430            self.thread.update(cx, |thread, cx| {
3431                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3432                    thread.run_tool(
3433                        c.tool_use_id.clone(),
3434                        c.ui_text.clone(),
3435                        c.input.clone(),
3436                        c.request.clone(),
3437                        c.tool.clone(),
3438                        configured.model,
3439                        Some(window.window_handle()),
3440                        cx,
3441                    );
3442                }
3443            });
3444        }
3445    }
3446
3447    fn handle_deny_tool(
3448        &mut self,
3449        tool_use_id: LanguageModelToolUseId,
3450        tool_name: Arc<str>,
3451        _: &ClickEvent,
3452        window: &mut Window,
3453        cx: &mut Context<Self>,
3454    ) {
3455        let window_handle = window.window_handle();
3456        self.thread.update(cx, |thread, cx| {
3457            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3458        });
3459    }
3460
3461    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3462        let project_context = self.thread.read(cx).project_context();
3463        let project_context = project_context.borrow();
3464        let Some(project_context) = project_context.as_ref() else {
3465            return;
3466        };
3467
3468        let project_entry_ids = project_context
3469            .worktrees
3470            .iter()
3471            .flat_map(|worktree| worktree.rules_file.as_ref())
3472            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3473            .collect::<Vec<_>>();
3474
3475        self.workspace
3476            .update(cx, move |workspace, cx| {
3477                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3478                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3479                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3480                let project = workspace.project().read(cx);
3481                let project_paths = project_entry_ids
3482                    .into_iter()
3483                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3484                    .collect::<Vec<_>>();
3485                for project_path in project_paths {
3486                    workspace
3487                        .open_path(project_path, None, true, window, cx)
3488                        .detach_and_log_err(cx);
3489                }
3490            })
3491            .ok();
3492    }
3493
3494    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3495        for window in self.notifications.drain(..) {
3496            window
3497                .update(cx, |_, window, _| {
3498                    window.remove_window();
3499                })
3500                .ok();
3501
3502            self.notification_subscriptions.remove(&window);
3503        }
3504    }
3505
3506    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3507        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3508            return None;
3509        }
3510
3511        Some(
3512            div()
3513                .occlude()
3514                .id("active-thread-scrollbar")
3515                .on_mouse_move(cx.listener(|_, _, _, cx| {
3516                    cx.notify();
3517                    cx.stop_propagation()
3518                }))
3519                .on_hover(|_, _, cx| {
3520                    cx.stop_propagation();
3521                })
3522                .on_any_mouse_down(|_, _, cx| {
3523                    cx.stop_propagation();
3524                })
3525                .on_mouse_up(
3526                    MouseButton::Left,
3527                    cx.listener(|_, _, _, cx| {
3528                        cx.stop_propagation();
3529                    }),
3530                )
3531                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3532                    cx.notify();
3533                }))
3534                .h_full()
3535                .absolute()
3536                .right_1()
3537                .top_1()
3538                .bottom_0()
3539                .w(px(12.))
3540                .cursor_default()
3541                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3542        )
3543    }
3544
3545    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3546        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3547        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3548            cx.background_executor()
3549                .timer(SCROLLBAR_SHOW_INTERVAL)
3550                .await;
3551            thread
3552                .update(cx, |thread, cx| {
3553                    if !thread.scrollbar_state.is_dragging() {
3554                        thread.show_scrollbar = false;
3555                        cx.notify();
3556                    }
3557                })
3558                .log_err();
3559        }))
3560    }
3561
3562    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3563        self.expanded_code_blocks
3564            .get(&(message_id, ix))
3565            .copied()
3566            .unwrap_or(true)
3567    }
3568
3569    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3570        let is_expanded = self
3571            .expanded_code_blocks
3572            .entry((message_id, ix))
3573            .or_insert(true);
3574        *is_expanded = !*is_expanded;
3575    }
3576
3577    pub fn scroll_to_top(&mut self, cx: &mut Context<Self>) {
3578        self.list_state.scroll_to(ListOffset::default());
3579        cx.notify();
3580    }
3581
3582    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3583        self.list_state.reset(self.messages.len());
3584        cx.notify();
3585    }
3586}
3587
3588pub enum ActiveThreadEvent {
3589    EditingMessageTokenCountChanged,
3590}
3591
3592impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3593
3594impl Render for ActiveThread {
3595    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3596        v_flex()
3597            .size_full()
3598            .relative()
3599            .bg(cx.theme().colors().panel_background)
3600            .on_mouse_move(cx.listener(|this, _, _, cx| {
3601                this.show_scrollbar = true;
3602                this.hide_scrollbar_later(cx);
3603                cx.notify();
3604            }))
3605            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3606                this.show_scrollbar = true;
3607                this.hide_scrollbar_later(cx);
3608                cx.notify();
3609            }))
3610            .on_mouse_up(
3611                MouseButton::Left,
3612                cx.listener(|this, _, _, cx| {
3613                    this.hide_scrollbar_later(cx);
3614                }),
3615            )
3616            .child(list(self.list_state.clone()).flex_grow())
3617            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3618                this.child(scrollbar)
3619            })
3620    }
3621}
3622
3623pub(crate) fn open_active_thread_as_markdown(
3624    thread: Entity<Thread>,
3625    workspace: Entity<Workspace>,
3626    window: &mut Window,
3627    cx: &mut App,
3628) -> Task<anyhow::Result<()>> {
3629    let markdown_language_task = workspace
3630        .read(cx)
3631        .app_state()
3632        .languages
3633        .language_for_name("Markdown");
3634
3635    window.spawn(cx, async move |cx| {
3636        let markdown_language = markdown_language_task.await?;
3637
3638        workspace.update_in(cx, |workspace, window, cx| {
3639            let thread = thread.read(cx);
3640            let markdown = thread.to_markdown(cx)?;
3641            let thread_summary = thread.summary().or_default().to_string();
3642
3643            let project = workspace.project().clone();
3644
3645            if !project.read(cx).is_local() {
3646                anyhow::bail!("failed to open active thread as markdown in remote project");
3647            }
3648
3649            let buffer = project.update(cx, |project, cx| {
3650                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3651            });
3652            let buffer =
3653                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3654
3655            workspace.add_item_to_active_pane(
3656                Box::new(cx.new(|cx| {
3657                    let mut editor =
3658                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3659                    editor.set_breadcrumb_header(thread_summary);
3660                    editor
3661                })),
3662                None,
3663                true,
3664                window,
3665                cx,
3666            );
3667
3668            anyhow::Ok(())
3669        })??;
3670        anyhow::Ok(())
3671    })
3672}
3673
3674pub(crate) fn open_context(
3675    context: &AgentContextHandle,
3676    workspace: Entity<Workspace>,
3677    window: &mut Window,
3678    cx: &mut App,
3679) {
3680    match context {
3681        AgentContextHandle::File(file_context) => {
3682            if let Some(project_path) = file_context.project_path(cx) {
3683                workspace.update(cx, |workspace, cx| {
3684                    workspace
3685                        .open_path(project_path, None, true, window, cx)
3686                        .detach_and_log_err(cx);
3687                });
3688            }
3689        }
3690
3691        AgentContextHandle::Directory(directory_context) => {
3692            let entry_id = directory_context.entry_id;
3693            workspace.update(cx, |workspace, cx| {
3694                workspace.project().update(cx, |_project, cx| {
3695                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3696                })
3697            })
3698        }
3699
3700        AgentContextHandle::Symbol(symbol_context) => {
3701            let buffer = symbol_context.buffer.read(cx);
3702            if let Some(project_path) = buffer.project_path(cx) {
3703                let snapshot = buffer.snapshot();
3704                let target_position = symbol_context.range.start.to_point(&snapshot);
3705                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3706                    .detach();
3707            }
3708        }
3709
3710        AgentContextHandle::Selection(selection_context) => {
3711            let buffer = selection_context.buffer.read(cx);
3712            if let Some(project_path) = buffer.project_path(cx) {
3713                let snapshot = buffer.snapshot();
3714                let target_position = selection_context.range.start.to_point(&snapshot);
3715
3716                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3717                    .detach();
3718            }
3719        }
3720
3721        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3722            cx.open_url(&fetched_url_context.url);
3723        }
3724
3725        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3726            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3727                let thread = thread_context.thread.clone();
3728                window.defer(cx, move |window, cx| {
3729                    panel.update(cx, |panel, cx| {
3730                        panel.open_thread(thread, window, cx);
3731                    });
3732                });
3733            }
3734        }),
3735
3736        AgentContextHandle::TextThread(text_thread_context) => {
3737            workspace.update(cx, |workspace, cx| {
3738                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3739                    let context = text_thread_context.context.clone();
3740                    window.defer(cx, move |window, cx| {
3741                        panel.update(cx, |panel, cx| {
3742                            panel.open_prompt_editor(context, window, cx)
3743                        });
3744                    });
3745                }
3746            })
3747        }
3748
3749        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3750            Box::new(OpenRulesLibrary {
3751                prompt_to_select: Some(rules_context.prompt_id.0),
3752            }),
3753            cx,
3754        ),
3755
3756        AgentContextHandle::Image(_) => {}
3757    }
3758}
3759
3760pub(crate) fn attach_pasted_images_as_context(
3761    context_store: &Entity<ContextStore>,
3762    cx: &mut App,
3763) -> bool {
3764    let images = cx
3765        .read_from_clipboard()
3766        .map(|item| {
3767            item.into_entries()
3768                .filter_map(|entry| {
3769                    if let ClipboardEntry::Image(image) = entry {
3770                        Some(image)
3771                    } else {
3772                        None
3773                    }
3774                })
3775                .collect::<Vec<_>>()
3776        })
3777        .unwrap_or_default();
3778
3779    if images.is_empty() {
3780        return false;
3781    }
3782    cx.stop_propagation();
3783
3784    context_store.update(cx, |store, cx| {
3785        for image in images {
3786            store.add_image_instance(Arc::new(image), cx);
3787        }
3788    });
3789    true
3790}
3791
3792fn open_editor_at_position(
3793    project_path: project::ProjectPath,
3794    target_position: Point,
3795    workspace: &Entity<Workspace>,
3796    window: &mut Window,
3797    cx: &mut App,
3798) -> Task<()> {
3799    let open_task = workspace.update(cx, |workspace, cx| {
3800        workspace.open_path(project_path, None, true, window, cx)
3801    });
3802    window.spawn(cx, async move |cx| {
3803        if let Some(active_editor) = open_task
3804            .await
3805            .log_err()
3806            .and_then(|item| item.downcast::<Editor>())
3807        {
3808            active_editor
3809                .downgrade()
3810                .update_in(cx, |editor, window, cx| {
3811                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3812                })
3813                .log_err();
3814        }
3815    })
3816}
3817
3818#[cfg(test)]
3819mod tests {
3820    use super::*;
3821    use agent::{MessageSegment, context::ContextLoadResult, thread_store};
3822    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3823    use editor::EditorSettings;
3824    use fs::FakeFs;
3825    use gpui::{AppContext, TestAppContext, VisualTestContext};
3826    use language_model::{
3827        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3828        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3829    };
3830    use project::Project;
3831    use prompt_store::PromptBuilder;
3832    use serde_json::json;
3833    use settings::SettingsStore;
3834    use util::path;
3835    use workspace::CollaboratorId;
3836
3837    #[gpui::test]
3838    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3839        init_test_settings(cx);
3840
3841        let project = create_test_project(
3842            cx,
3843            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3844        )
3845        .await;
3846
3847        let (cx, _active_thread, workspace, thread, model) =
3848            setup_test_environment(cx, project.clone()).await;
3849
3850        // Insert user message without any context (empty context vector)
3851        thread.update(cx, |thread, cx| {
3852            thread.insert_user_message(
3853                "What is the best way to learn Rust?",
3854                ContextLoadResult::default(),
3855                None,
3856                vec![],
3857                cx,
3858            );
3859        });
3860
3861        // Stream response to user message
3862        thread.update(cx, |thread, cx| {
3863            let intent = CompletionIntent::UserPrompt;
3864            let request = thread.to_completion_request(model.clone(), intent, cx);
3865            thread.stream_completion(request, model, intent, cx.active_window(), cx)
3866        });
3867        // Follow the agent
3868        cx.update(|window, cx| {
3869            workspace.update(cx, |workspace, cx| {
3870                workspace.follow(CollaboratorId::Agent, window, cx);
3871            })
3872        });
3873        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3874
3875        // Cancel the current completion
3876        thread.update(cx, |thread, cx| {
3877            thread.cancel_last_completion(cx.active_window(), cx)
3878        });
3879
3880        cx.executor().run_until_parked();
3881
3882        // No longer following the agent
3883        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3884    }
3885
3886    #[gpui::test]
3887    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3888        init_test_settings(cx);
3889
3890        let project = create_test_project(cx, json!({})).await;
3891
3892        let (cx, active_thread, _, thread, model) =
3893            setup_test_environment(cx, project.clone()).await;
3894        cx.update(|_, cx| {
3895            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3896                registry.set_default_model(
3897                    Some(ConfiguredModel {
3898                        provider: Arc::new(FakeLanguageModelProvider::default()),
3899                        model,
3900                    }),
3901                    cx,
3902                );
3903            });
3904        });
3905
3906        let creases = vec![MessageCrease {
3907            range: 14..22,
3908            icon_path: "icon".into(),
3909            label: "foo.txt".into(),
3910            context: None,
3911        }];
3912
3913        let message = thread.update(cx, |thread, cx| {
3914            let message_id = thread.insert_user_message(
3915                "Tell me about @foo.txt",
3916                ContextLoadResult::default(),
3917                None,
3918                creases,
3919                cx,
3920            );
3921            thread.message(message_id).cloned().unwrap()
3922        });
3923
3924        active_thread.update_in(cx, |active_thread, window, cx| {
3925            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3926                active_thread.start_editing_message(
3927                    message.id,
3928                    message_text,
3929                    message.creases.as_slice(),
3930                    window,
3931                    cx,
3932                );
3933            }
3934            let editor = active_thread
3935                .editing_message
3936                .as_ref()
3937                .unwrap()
3938                .1
3939                .editor
3940                .clone();
3941            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
3942            active_thread.confirm_editing_message(&Default::default(), window, cx);
3943        });
3944        cx.run_until_parked();
3945
3946        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3947        active_thread.update_in(cx, |active_thread, window, cx| {
3948            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3949                active_thread.start_editing_message(
3950                    message.id,
3951                    message_text,
3952                    message.creases.as_slice(),
3953                    window,
3954                    cx,
3955                );
3956            }
3957            let editor = active_thread
3958                .editing_message
3959                .as_ref()
3960                .unwrap()
3961                .1
3962                .editor
3963                .clone();
3964            let text = editor.update(cx, |editor, cx| editor.text(cx));
3965            assert_eq!(text, "modified @foo.txt");
3966        });
3967    }
3968
3969    #[gpui::test]
3970    async fn test_editing_message_cancels_previous_completion(cx: &mut TestAppContext) {
3971        init_test_settings(cx);
3972
3973        let project = create_test_project(cx, json!({})).await;
3974
3975        let (cx, active_thread, _, thread, model) =
3976            setup_test_environment(cx, project.clone()).await;
3977
3978        cx.update(|_, cx| {
3979            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3980                registry.set_default_model(
3981                    Some(ConfiguredModel {
3982                        provider: Arc::new(FakeLanguageModelProvider::default()),
3983                        model: model.clone(),
3984                    }),
3985                    cx,
3986                );
3987            });
3988        });
3989
3990        // Track thread events to verify cancellation
3991        let cancellation_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3992        let new_request_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3993
3994        let _subscription = cx.update(|_, cx| {
3995            let cancellation_events = cancellation_events.clone();
3996            let new_request_events = new_request_events.clone();
3997            cx.subscribe(
3998                &thread,
3999                move |_thread, event: &ThreadEvent, _cx| match event {
4000                    ThreadEvent::CompletionCanceled => {
4001                        cancellation_events.lock().unwrap().push(());
4002                    }
4003                    ThreadEvent::NewRequest => {
4004                        new_request_events.lock().unwrap().push(());
4005                    }
4006                    _ => {}
4007                },
4008            )
4009        });
4010
4011        // Insert a user message and start streaming a response
4012        let message = thread.update(cx, |thread, cx| {
4013            let message_id = thread.insert_user_message(
4014                "Hello, how are you?",
4015                ContextLoadResult::default(),
4016                None,
4017                vec![],
4018                cx,
4019            );
4020            thread.advance_prompt_id();
4021            thread.send_to_model(
4022                model.clone(),
4023                CompletionIntent::UserPrompt,
4024                cx.active_window(),
4025                cx,
4026            );
4027            thread.message(message_id).cloned().unwrap()
4028        });
4029
4030        cx.run_until_parked();
4031
4032        // Verify that a completion is in progress
4033        assert!(cx.read(|cx| thread.read(cx).is_generating()));
4034        assert_eq!(new_request_events.lock().unwrap().len(), 1);
4035
4036        // Edit the message while the completion is still running
4037        active_thread.update_in(cx, |active_thread, window, cx| {
4038            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
4039                active_thread.start_editing_message(
4040                    message.id,
4041                    message_text,
4042                    message.creases.as_slice(),
4043                    window,
4044                    cx,
4045                );
4046            }
4047            let editor = active_thread
4048                .editing_message
4049                .as_ref()
4050                .unwrap()
4051                .1
4052                .editor
4053                .clone();
4054            editor.update(cx, |editor, cx| {
4055                editor.set_text("What is the weather like?", window, cx);
4056            });
4057            active_thread.confirm_editing_message(&Default::default(), window, cx);
4058        });
4059
4060        cx.run_until_parked();
4061
4062        // Verify that the previous completion was cancelled
4063        assert_eq!(cancellation_events.lock().unwrap().len(), 1);
4064
4065        // Verify that a new request was started after cancellation
4066        assert_eq!(new_request_events.lock().unwrap().len(), 2);
4067
4068        // Verify that the edited message contains the new text
4069        let edited_message =
4070            thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
4071        match &edited_message.segments[0] {
4072            MessageSegment::Text(text) => {
4073                assert_eq!(text, "What is the weather like?");
4074            }
4075            _ => panic!("Expected text segment"),
4076        }
4077    }
4078
4079    fn init_test_settings(cx: &mut TestAppContext) {
4080        cx.update(|cx| {
4081            let settings_store = SettingsStore::test(cx);
4082            cx.set_global(settings_store);
4083            language::init(cx);
4084            Project::init_settings(cx);
4085            AgentSettings::register(cx);
4086            prompt_store::init(cx);
4087            thread_store::init(cx);
4088            workspace::init_settings(cx);
4089            language_model::init_settings(cx);
4090            ThemeSettings::register(cx);
4091            EditorSettings::register(cx);
4092            ToolRegistry::default_global(cx);
4093        });
4094    }
4095
4096    // Helper to create a test project with test files
4097    async fn create_test_project(
4098        cx: &mut TestAppContext,
4099        files: serde_json::Value,
4100    ) -> Entity<Project> {
4101        let fs = FakeFs::new(cx.executor());
4102        fs.insert_tree(path!("/test"), files).await;
4103        Project::test(fs, [path!("/test").as_ref()], cx).await
4104    }
4105
4106    async fn setup_test_environment(
4107        cx: &mut TestAppContext,
4108        project: Entity<Project>,
4109    ) -> (
4110        &mut VisualTestContext,
4111        Entity<ActiveThread>,
4112        Entity<Workspace>,
4113        Entity<Thread>,
4114        Arc<dyn LanguageModel>,
4115    ) {
4116        let (workspace, cx) =
4117            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4118
4119        let thread_store = cx
4120            .update(|_, cx| {
4121                ThreadStore::load(
4122                    project.clone(),
4123                    cx.new(|_| ToolWorkingSet::default()),
4124                    None,
4125                    Arc::new(PromptBuilder::new(None).unwrap()),
4126                    cx,
4127                )
4128            })
4129            .await
4130            .unwrap();
4131
4132        let text_thread_store = cx
4133            .update(|_, cx| {
4134                TextThreadStore::new(
4135                    project.clone(),
4136                    Arc::new(PromptBuilder::new(None).unwrap()),
4137                    Default::default(),
4138                    cx,
4139                )
4140            })
4141            .await
4142            .unwrap();
4143
4144        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
4145        let context_store =
4146            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
4147
4148        let model = FakeLanguageModel::default();
4149        let model: Arc<dyn LanguageModel> = Arc::new(model);
4150
4151        let language_registry = LanguageRegistry::new(cx.executor());
4152        let language_registry = Arc::new(language_registry);
4153
4154        let active_thread = cx.update(|window, cx| {
4155            cx.new(|cx| {
4156                ActiveThread::new(
4157                    thread.clone(),
4158                    thread_store.clone(),
4159                    text_thread_store,
4160                    context_store.clone(),
4161                    language_registry.clone(),
4162                    workspace.downgrade(),
4163                    window,
4164                    cx,
4165                )
4166            })
4167        });
4168
4169        (cx, active_thread, workspace, thread, model)
4170    }
4171}