active_thread.rs

   1use crate::context_picker::{ContextPicker, MentionLink};
   2use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   3use crate::message_editor::{extract_message_creases, insert_message_creases};
   4use crate::ui::{AddedContext, AgentNotification, AgentNotificationEvent, ContextPill};
   5use crate::{AgentPanel, ModelUsageContext};
   6use agent::{
   7    ContextStore, LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, TextThreadStore,
   8    Thread, ThreadError, ThreadEvent, ThreadFeedback, ThreadStore, ThreadSummary,
   9    context::{self, AgentContextHandle, RULES_ICON},
  10    thread_store::RulesLoadingError,
  11    tool_use::{PendingToolUseStatus, ToolUse},
  12};
  13use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  14use anyhow::Context as _;
  15use assistant_tool::ToolUseStatus;
  16use audio::{Audio, Sound};
  17use cloud_llm_client::CompletionIntent;
  18use collections::{HashMap, HashSet};
  19use editor::actions::{MoveUp, Paste};
  20use editor::scroll::Autoscroll;
  21use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer, SelectionEffects};
  22use gpui::{
  23    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  24    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  25    ListAlignment, ListOffset, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  26    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, UnderlineStyle,
  27    WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, pulsating_between,
  28};
  29use language::{Buffer, Language, LanguageRegistry};
  30use language_model::{
  31    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  32};
  33use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  34use markdown::{
  35    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  36};
  37use project::{ProjectEntryId, ProjectItem as _};
  38use rope::Point;
  39use settings::{Settings as _, SettingsStore, update_settings_file};
  40use std::ffi::OsStr;
  41use std::path::Path;
  42use std::rc::Rc;
  43use std::sync::Arc;
  44use std::time::Duration;
  45use text::ToPoint;
  46use theme::ThemeSettings;
  47use ui::{
  48    Banner, CommonAnimationExt, Disclosure, KeyBinding, PopoverMenuHandle, Scrollbar,
  49    ScrollbarState, TextSize, Tooltip, prelude::*,
  50};
  51use util::ResultExt as _;
  52use util::markdown::MarkdownCodeBlock;
  53use workspace::{CollaboratorId, Workspace};
  54use zed_actions::assistant::OpenRulesLibrary;
  55
  56const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
  57const EDIT_PREVIOUS_MESSAGE_MIN_LINES: usize = 1;
  58const RESPONSE_PADDING_X: Pixels = px(19.);
  59
  60pub struct ActiveThread {
  61    context_store: Entity<ContextStore>,
  62    language_registry: Arc<LanguageRegistry>,
  63    thread_store: Entity<ThreadStore>,
  64    text_thread_store: Entity<TextThreadStore>,
  65    thread: Entity<Thread>,
  66    workspace: WeakEntity<Workspace>,
  67    save_thread_task: Option<Task<()>>,
  68    messages: Vec<MessageId>,
  69    list_state: ListState,
  70    scrollbar_state: ScrollbarState,
  71    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  72    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  73    editing_message: Option<(MessageId, EditingMessageState)>,
  74    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  75    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  76    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  77    last_error: Option<ThreadError>,
  78    notifications: Vec<WindowHandle<AgentNotification>>,
  79    copied_code_block_ids: HashSet<(MessageId, usize)>,
  80    _subscriptions: Vec<Subscription>,
  81    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  82    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  83    _load_edited_message_context_task: Option<Task<()>>,
  84}
  85
  86struct RenderedMessage {
  87    language_registry: Arc<LanguageRegistry>,
  88    segments: Vec<RenderedMessageSegment>,
  89}
  90
  91#[derive(Clone)]
  92struct RenderedToolUse {
  93    label: Entity<Markdown>,
  94    input: Entity<Markdown>,
  95    output: Entity<Markdown>,
  96}
  97
  98impl RenderedMessage {
  99    fn from_segments(
 100        segments: &[MessageSegment],
 101        language_registry: Arc<LanguageRegistry>,
 102        cx: &mut App,
 103    ) -> Self {
 104        let mut this = Self {
 105            language_registry,
 106            segments: Vec::with_capacity(segments.len()),
 107        };
 108        for segment in segments {
 109            this.push_segment(segment, cx);
 110        }
 111        this
 112    }
 113
 114    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 115        if let Some(RenderedMessageSegment::Thinking {
 116            content,
 117            scroll_handle,
 118        }) = self.segments.last_mut()
 119        {
 120            content.update(cx, |markdown, cx| {
 121                markdown.append(text, cx);
 122            });
 123            scroll_handle.scroll_to_bottom();
 124        } else {
 125            self.segments.push(RenderedMessageSegment::Thinking {
 126                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 127                scroll_handle: ScrollHandle::default(),
 128            });
 129        }
 130    }
 131
 132    fn append_text(&mut self, text: &String, cx: &mut App) {
 133        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 134            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 135        } else {
 136            self.segments
 137                .push(RenderedMessageSegment::Text(parse_markdown(
 138                    SharedString::from(text),
 139                    self.language_registry.clone(),
 140                    cx,
 141                )));
 142        }
 143    }
 144
 145    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 146        match segment {
 147            MessageSegment::Thinking { text, .. } => {
 148                self.segments.push(RenderedMessageSegment::Thinking {
 149                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 150                    scroll_handle: ScrollHandle::default(),
 151                })
 152            }
 153            MessageSegment::Text(text) => {
 154                self.segments
 155                    .push(RenderedMessageSegment::Text(parse_markdown(
 156                        text.into(),
 157                        self.language_registry.clone(),
 158                        cx,
 159                    )))
 160            }
 161            MessageSegment::RedactedThinking(_) => {}
 162        };
 163    }
 164}
 165
 166enum RenderedMessageSegment {
 167    Thinking {
 168        content: Entity<Markdown>,
 169        scroll_handle: ScrollHandle,
 170    },
 171    Text(Entity<Markdown>),
 172}
 173
 174fn parse_markdown(
 175    text: SharedString,
 176    language_registry: Arc<LanguageRegistry>,
 177    cx: &mut App,
 178) -> Entity<Markdown> {
 179    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 180}
 181
 182pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 183    let theme_settings = ThemeSettings::get_global(cx);
 184    let colors = cx.theme().colors();
 185    let ui_font_size = TextSize::Default.rems(cx);
 186    let buffer_font_size = TextSize::Small.rems(cx);
 187    let mut text_style = window.text_style();
 188    let line_height = buffer_font_size * 1.75;
 189
 190    text_style.refine(&TextStyleRefinement {
 191        font_family: Some(theme_settings.ui_font.family.clone()),
 192        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 193        font_features: Some(theme_settings.ui_font.features.clone()),
 194        font_size: Some(ui_font_size.into()),
 195        line_height: Some(line_height.into()),
 196        color: Some(cx.theme().colors().text),
 197        ..Default::default()
 198    });
 199
 200    MarkdownStyle {
 201        base_text_style: text_style.clone(),
 202        syntax: cx.theme().syntax().clone(),
 203        selection_background_color: cx.theme().colors().element_selection_background,
 204        code_block_overflow_x_scroll: true,
 205        table_overflow_x_scroll: true,
 206        heading_level_styles: Some(HeadingLevelStyles {
 207            h1: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.15).into()),
 209                ..Default::default()
 210            }),
 211            h2: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.1).into()),
 213                ..Default::default()
 214            }),
 215            h3: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.05).into()),
 217                ..Default::default()
 218            }),
 219            h4: Some(TextStyleRefinement {
 220                font_size: Some(rems(1.).into()),
 221                ..Default::default()
 222            }),
 223            h5: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.95).into()),
 225                ..Default::default()
 226            }),
 227            h6: Some(TextStyleRefinement {
 228                font_size: Some(rems(0.875).into()),
 229                ..Default::default()
 230            }),
 231        }),
 232        code_block: StyleRefinement {
 233            padding: EdgesRefinement {
 234                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 235                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 236                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 237                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 238            },
 239            background: Some(colors.editor_background.into()),
 240            text: Some(TextStyleRefinement {
 241                font_family: Some(theme_settings.buffer_font.family.clone()),
 242                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 243                font_features: Some(theme_settings.buffer_font.features.clone()),
 244                font_size: Some(buffer_font_size.into()),
 245                ..Default::default()
 246            }),
 247            ..Default::default()
 248        },
 249        inline_code: TextStyleRefinement {
 250            font_family: Some(theme_settings.buffer_font.family.clone()),
 251            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 252            font_features: Some(theme_settings.buffer_font.features.clone()),
 253            font_size: Some(buffer_font_size.into()),
 254            background_color: Some(colors.editor_foreground.opacity(0.08)),
 255            ..Default::default()
 256        },
 257        link: TextStyleRefinement {
 258            background_color: Some(colors.editor_foreground.opacity(0.025)),
 259            underline: Some(UnderlineStyle {
 260                color: Some(colors.text_accent.opacity(0.5)),
 261                thickness: px(1.),
 262                ..Default::default()
 263            }),
 264            ..Default::default()
 265        },
 266        link_callback: Some(Rc::new(move |url, cx| {
 267            if MentionLink::is_valid(url) {
 268                let colors = cx.theme().colors();
 269                Some(TextStyleRefinement {
 270                    background_color: Some(colors.element_background),
 271                    ..Default::default()
 272                })
 273            } else {
 274                None
 275            }
 276        })),
 277        ..Default::default()
 278    }
 279}
 280
 281fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 282    let theme_settings = ThemeSettings::get_global(cx);
 283    let colors = cx.theme().colors();
 284    let ui_font_size = TextSize::Default.rems(cx);
 285    let buffer_font_size = TextSize::Small.rems(cx);
 286    let mut text_style = window.text_style();
 287
 288    text_style.refine(&TextStyleRefinement {
 289        font_family: Some(theme_settings.ui_font.family.clone()),
 290        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 291        font_features: Some(theme_settings.ui_font.features.clone()),
 292        font_size: Some(ui_font_size.into()),
 293        color: Some(cx.theme().colors().text),
 294        ..Default::default()
 295    });
 296
 297    MarkdownStyle {
 298        base_text_style: text_style,
 299        syntax: cx.theme().syntax().clone(),
 300        selection_background_color: cx.theme().colors().element_selection_background,
 301        code_block_overflow_x_scroll: false,
 302        code_block: StyleRefinement {
 303            margin: EdgesRefinement::default(),
 304            padding: EdgesRefinement::default(),
 305            background: Some(colors.editor_background.into()),
 306            border_color: None,
 307            border_widths: EdgesRefinement::default(),
 308            text: Some(TextStyleRefinement {
 309                font_family: Some(theme_settings.buffer_font.family.clone()),
 310                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 311                font_features: Some(theme_settings.buffer_font.features.clone()),
 312                font_size: Some(buffer_font_size.into()),
 313                ..Default::default()
 314            }),
 315            ..Default::default()
 316        },
 317        inline_code: TextStyleRefinement {
 318            font_family: Some(theme_settings.buffer_font.family.clone()),
 319            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 320            font_features: Some(theme_settings.buffer_font.features.clone()),
 321            font_size: Some(TextSize::XSmall.rems(cx).into()),
 322            ..Default::default()
 323        },
 324        heading: StyleRefinement {
 325            text: Some(TextStyleRefinement {
 326                font_size: Some(ui_font_size.into()),
 327                ..Default::default()
 328            }),
 329            ..Default::default()
 330        },
 331        ..Default::default()
 332    }
 333}
 334
 335fn render_markdown_code_block(
 336    message_id: MessageId,
 337    ix: usize,
 338    kind: &CodeBlockKind,
 339    parsed_markdown: &ParsedMarkdown,
 340    metadata: CodeBlockMetadata,
 341    active_thread: Entity<ActiveThread>,
 342    workspace: WeakEntity<Workspace>,
 343    _window: &Window,
 344    cx: &App,
 345) -> Div {
 346    let label_size = rems(0.8125);
 347
 348    let label = match kind {
 349        CodeBlockKind::Indented => None,
 350        CodeBlockKind::Fenced => Some(
 351            h_flex()
 352                .px_1()
 353                .gap_1()
 354                .child(
 355                    Icon::new(IconName::Code)
 356                        .color(Color::Muted)
 357                        .size(IconSize::XSmall),
 358                )
 359                .child(div().text_size(label_size).child("Plain Text"))
 360                .into_any_element(),
 361        ),
 362        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 363            parsed_markdown.languages_by_name.get(raw_language_name),
 364            raw_language_name.clone(),
 365            cx,
 366        )),
 367        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 368            // We tell the model to use /dev/null for the path instead of using ```language
 369            // because otherwise it consistently fails to use code citations.
 370            if path_range.path.starts_with("/dev/null") {
 371                let ext = path_range
 372                    .path
 373                    .extension()
 374                    .and_then(OsStr::to_str)
 375                    .map(|str| SharedString::new(str.to_string()))
 376                    .unwrap_or_default();
 377
 378                render_code_language(
 379                    parsed_markdown
 380                        .languages_by_path
 381                        .get(&path_range.path)
 382                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 383                    ext,
 384                    cx,
 385                )
 386            } else {
 387                let content = if let Some(parent) = path_range.path.parent() {
 388                    let file_name = file_name.to_string_lossy().to_string();
 389                    let path = parent.to_string_lossy().to_string();
 390                    let path_and_file = format!("{}/{}", path, file_name);
 391
 392                    h_flex()
 393                        .id(("code-block-header-label", ix))
 394                        .ml_1()
 395                        .gap_1()
 396                        .child(div().text_size(label_size).child(file_name))
 397                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 398                        .tooltip(move |window, cx| {
 399                            Tooltip::with_meta(
 400                                "Jump to File",
 401                                None,
 402                                path_and_file.clone(),
 403                                window,
 404                                cx,
 405                            )
 406                        })
 407                        .into_any_element()
 408                } else {
 409                    div()
 410                        .ml_1()
 411                        .text_size(label_size)
 412                        .child(path_range.path.to_string_lossy().to_string())
 413                        .into_any_element()
 414                };
 415
 416                h_flex()
 417                    .id(("code-block-header-button", ix))
 418                    .w_full()
 419                    .max_w_full()
 420                    .px_1()
 421                    .gap_0p5()
 422                    .cursor_pointer()
 423                    .rounded_sm()
 424                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 425                    .child(
 426                        h_flex()
 427                            .gap_0p5()
 428                            .children(
 429                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 430                                    .map(Icon::from_path)
 431                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 432                            )
 433                            .child(content)
 434                            .child(
 435                                Icon::new(IconName::ArrowUpRight)
 436                                    .size(IconSize::Small)
 437                                    .color(Color::Ignored),
 438                            ),
 439                    )
 440                    .on_click({
 441                        let path_range = path_range.clone();
 442                        move |_, window, cx| {
 443                            workspace
 444                                .update(cx, |workspace, cx| {
 445                                    open_path(&path_range, window, workspace, cx)
 446                                })
 447                                .ok();
 448                        }
 449                    })
 450                    .into_any_element()
 451            }
 452        }),
 453    };
 454
 455    let codeblock_was_copied = active_thread
 456        .read(cx)
 457        .copied_code_block_ids
 458        .contains(&(message_id, ix));
 459
 460    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 461
 462    let codeblock_header_bg = cx
 463        .theme()
 464        .colors()
 465        .element_background
 466        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 467
 468    let control_buttons = h_flex()
 469        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 470        .absolute()
 471        .top_0()
 472        .right_0()
 473        .h_full()
 474        .bg(codeblock_header_bg)
 475        .rounded_tr_md()
 476        .px_1()
 477        .gap_1()
 478        .child(
 479            IconButton::new(
 480                ("copy-markdown-code", ix),
 481                if codeblock_was_copied {
 482                    IconName::Check
 483                } else {
 484                    IconName::Copy
 485                },
 486            )
 487            .icon_color(Color::Muted)
 488            .shape(ui::IconButtonShape::Square)
 489            .tooltip(Tooltip::text("Copy Code"))
 490            .on_click({
 491                let active_thread = active_thread.clone();
 492                let parsed_markdown = parsed_markdown.clone();
 493                let code_block_range = metadata.content_range;
 494                move |_event, _window, cx| {
 495                    active_thread.update(cx, |this, cx| {
 496                        this.copied_code_block_ids.insert((message_id, ix));
 497
 498                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 499                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 500
 501                        cx.spawn(async move |this, cx| {
 502                            cx.background_executor().timer(Duration::from_secs(2)).await;
 503
 504                            cx.update(|cx| {
 505                                this.update(cx, |this, cx| {
 506                                    this.copied_code_block_ids.remove(&(message_id, ix));
 507                                    cx.notify();
 508                                })
 509                            })
 510                            .ok();
 511                        })
 512                        .detach();
 513                    });
 514                }
 515            }),
 516        )
 517        .child(
 518            IconButton::new(
 519                ("expand-collapse-code", ix),
 520                if is_expanded {
 521                    IconName::ChevronUp
 522                } else {
 523                    IconName::ChevronDown
 524                },
 525            )
 526            .icon_color(Color::Muted)
 527            .shape(ui::IconButtonShape::Square)
 528            .tooltip(Tooltip::text(if is_expanded {
 529                "Collapse Code"
 530            } else {
 531                "Expand Code"
 532            }))
 533            .on_click({
 534                move |_event, _window, cx| {
 535                    active_thread.update(cx, |this, cx| {
 536                        this.toggle_codeblock_expanded(message_id, ix);
 537                        cx.notify();
 538                    });
 539                }
 540            }),
 541        );
 542
 543    let codeblock_header = h_flex()
 544        .relative()
 545        .p_1()
 546        .gap_1()
 547        .justify_between()
 548        .bg(codeblock_header_bg)
 549        .map(|this| {
 550            if !is_expanded {
 551                this.rounded_md()
 552            } else {
 553                this.rounded_t_md()
 554                    .border_b_1()
 555                    .border_color(cx.theme().colors().border.opacity(0.6))
 556            }
 557        })
 558        .children(label)
 559        .child(control_buttons);
 560
 561    v_flex()
 562        .group(CODEBLOCK_CONTAINER_GROUP)
 563        .my_2()
 564        .overflow_hidden()
 565        .rounded_md()
 566        .border_1()
 567        .border_color(cx.theme().colors().border.opacity(0.6))
 568        .bg(cx.theme().colors().editor_background)
 569        .child(codeblock_header)
 570        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 571}
 572
 573fn open_path(
 574    path_range: &PathWithRange,
 575    window: &mut Window,
 576    workspace: &mut Workspace,
 577    cx: &mut Context<'_, Workspace>,
 578) {
 579    let Some(project_path) = workspace
 580        .project()
 581        .read(cx)
 582        .find_project_path(&path_range.path, cx)
 583    else {
 584        return; // TODO instead of just bailing out, open that path in a buffer.
 585    };
 586
 587    let Some(target) = path_range.range.as_ref().map(|range| {
 588        Point::new(
 589            // Line number is 1-based
 590            range.start.line.saturating_sub(1),
 591            range.start.col.unwrap_or(0),
 592        )
 593    }) else {
 594        return;
 595    };
 596    let open_task = workspace.open_path(project_path, None, true, window, cx);
 597    window
 598        .spawn(cx, async move |cx| {
 599            let item = open_task.await?;
 600            if let Some(active_editor) = item.downcast::<Editor>() {
 601                active_editor
 602                    .update_in(cx, |editor, window, cx| {
 603                        editor.go_to_singleton_buffer_point(target, window, cx);
 604                    })
 605                    .ok();
 606            }
 607            anyhow::Ok(())
 608        })
 609        .detach_and_log_err(cx);
 610}
 611
 612fn render_code_language(
 613    language: Option<&Arc<Language>>,
 614    name_fallback: SharedString,
 615    cx: &App,
 616) -> AnyElement {
 617    let icon_path = language.and_then(|language| {
 618        language
 619            .config()
 620            .matcher
 621            .path_suffixes
 622            .iter()
 623            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 624            .map(Icon::from_path)
 625    });
 626
 627    let language_label = language
 628        .map(|language| language.name().into())
 629        .unwrap_or(name_fallback);
 630
 631    let label_size = rems(0.8125);
 632
 633    h_flex()
 634        .px_1()
 635        .gap_1p5()
 636        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 637        .child(div().text_size(label_size).child(language_label))
 638        .into_any_element()
 639}
 640
 641fn open_markdown_link(
 642    text: SharedString,
 643    workspace: WeakEntity<Workspace>,
 644    window: &mut Window,
 645    cx: &mut App,
 646) {
 647    let Some(workspace) = workspace.upgrade() else {
 648        cx.open_url(&text);
 649        return;
 650    };
 651
 652    match MentionLink::try_parse(&text, &workspace, cx) {
 653        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 654            if entry.is_dir() {
 655                workspace.project().update(cx, |_, cx| {
 656                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 657                })
 658            } else {
 659                workspace
 660                    .open_path(path, None, true, window, cx)
 661                    .detach_and_log_err(cx);
 662            }
 663        }),
 664        Some(MentionLink::Symbol(path, symbol_name)) => {
 665            let open_task = workspace.update(cx, |workspace, cx| {
 666                workspace.open_path(path, None, true, window, cx)
 667            });
 668            window
 669                .spawn(cx, async move |cx| {
 670                    let active_editor = open_task
 671                        .await?
 672                        .downcast::<Editor>()
 673                        .context("Item is not an editor")?;
 674                    active_editor.update_in(cx, |editor, window, cx| {
 675                        let symbol_range = editor
 676                            .buffer()
 677                            .read(cx)
 678                            .snapshot(cx)
 679                            .outline(None)
 680                            .and_then(|outline| {
 681                                outline
 682                                    .find_most_similar(&symbol_name)
 683                                    .map(|(_, item)| item.range.clone())
 684                            })
 685                            .context("Could not find matching symbol")?;
 686
 687                        editor.change_selections(
 688                            SelectionEffects::scroll(Autoscroll::center()),
 689                            window,
 690                            cx,
 691                            |s| s.select_anchor_ranges([symbol_range.start..symbol_range.start]),
 692                        );
 693                        anyhow::Ok(())
 694                    })
 695                })
 696                .detach_and_log_err(cx);
 697        }
 698        Some(MentionLink::Selection(path, line_range)) => {
 699            let open_task = workspace.update(cx, |workspace, cx| {
 700                workspace.open_path(path, None, true, window, cx)
 701            });
 702            window
 703                .spawn(cx, async move |cx| {
 704                    let active_editor = open_task
 705                        .await?
 706                        .downcast::<Editor>()
 707                        .context("Item is not an editor")?;
 708                    active_editor.update_in(cx, |editor, window, cx| {
 709                        editor.change_selections(
 710                            SelectionEffects::scroll(Autoscroll::center()),
 711                            window,
 712                            cx,
 713                            |s| {
 714                                s.select_ranges([Point::new(line_range.start as u32, 0)
 715                                    ..Point::new(line_range.start as u32, 0)])
 716                            },
 717                        );
 718                        anyhow::Ok(())
 719                    })
 720                })
 721                .detach_and_log_err(cx);
 722        }
 723        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 724            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 725                panel.update(cx, |panel, cx| {
 726                    panel
 727                        .open_thread_by_id(&thread_id, window, cx)
 728                        .detach_and_log_err(cx)
 729                });
 730            }
 731        }),
 732        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 733            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 734                panel.update(cx, |panel, cx| {
 735                    panel
 736                        .open_saved_prompt_editor(path, window, cx)
 737                        .detach_and_log_err(cx);
 738                });
 739            }
 740        }),
 741        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 742        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 743            Box::new(OpenRulesLibrary {
 744                prompt_to_select: Some(prompt_id.0),
 745            }),
 746            cx,
 747        ),
 748        None => cx.open_url(&text),
 749    }
 750}
 751
 752struct EditingMessageState {
 753    editor: Entity<Editor>,
 754    context_strip: Entity<ContextStrip>,
 755    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 756    last_estimated_token_count: Option<u64>,
 757    _subscriptions: [Subscription; 2],
 758    _update_token_count_task: Option<Task<()>>,
 759}
 760
 761impl ActiveThread {
 762    pub fn new(
 763        thread: Entity<Thread>,
 764        thread_store: Entity<ThreadStore>,
 765        text_thread_store: Entity<TextThreadStore>,
 766        context_store: Entity<ContextStore>,
 767        language_registry: Arc<LanguageRegistry>,
 768        workspace: WeakEntity<Workspace>,
 769        window: &mut Window,
 770        cx: &mut Context<Self>,
 771    ) -> Self {
 772        let subscriptions = vec![
 773            cx.observe(&thread, |_, _, cx| cx.notify()),
 774            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 775            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 776            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 777        ];
 778
 779        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.));
 780
 781        let workspace_subscription = workspace.upgrade().map(|workspace| {
 782            cx.observe_release(&workspace, |this, _, cx| {
 783                this.dismiss_notifications(cx);
 784            })
 785        });
 786
 787        let mut this = Self {
 788            language_registry,
 789            thread_store,
 790            text_thread_store,
 791            context_store,
 792            thread: thread.clone(),
 793            workspace,
 794            save_thread_task: None,
 795            messages: Vec::new(),
 796            rendered_messages_by_id: HashMap::default(),
 797            rendered_tool_uses: HashMap::default(),
 798            expanded_tool_uses: HashMap::default(),
 799            expanded_thinking_segments: HashMap::default(),
 800            expanded_code_blocks: HashMap::default(),
 801            list_state: list_state.clone(),
 802            scrollbar_state: ScrollbarState::new(list_state).parent_entity(&cx.entity()),
 803            editing_message: None,
 804            last_error: None,
 805            copied_code_block_ids: HashSet::default(),
 806            notifications: Vec::new(),
 807            _subscriptions: subscriptions,
 808            notification_subscriptions: HashMap::default(),
 809            open_feedback_editors: HashMap::default(),
 810            _load_edited_message_context_task: None,
 811        };
 812
 813        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 814            let rendered_message = RenderedMessage::from_segments(
 815                &message.segments,
 816                this.language_registry.clone(),
 817                cx,
 818            );
 819            this.push_rendered_message(message.id, rendered_message);
 820
 821            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 822                this.render_tool_use_markdown(
 823                    tool_use.id.clone(),
 824                    tool_use.ui_text.clone(),
 825                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 826                    tool_use.status.text(),
 827                    cx,
 828                );
 829            }
 830        }
 831
 832        if let Some(subscription) = workspace_subscription {
 833            this._subscriptions.push(subscription);
 834        }
 835
 836        this
 837    }
 838
 839    pub fn thread(&self) -> &Entity<Thread> {
 840        &self.thread
 841    }
 842
 843    pub fn is_empty(&self) -> bool {
 844        self.messages.is_empty()
 845    }
 846
 847    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 848        self.thread.read(cx).summary()
 849    }
 850
 851    pub fn regenerate_summary(&self, cx: &mut App) {
 852        self.thread.update(cx, |thread, cx| thread.summarize(cx))
 853    }
 854
 855    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 856        self.last_error.take();
 857        self.thread.update(cx, |thread, cx| {
 858            thread.cancel_last_completion(Some(window.window_handle()), cx)
 859        })
 860    }
 861
 862    pub fn last_error(&self) -> Option<ThreadError> {
 863        self.last_error.clone()
 864    }
 865
 866    pub fn clear_last_error(&mut self) {
 867        self.last_error.take();
 868    }
 869
 870    /// Returns the editing message id and the estimated token count in the content
 871    pub fn editing_message_id(&self) -> Option<(MessageId, u64)> {
 872        self.editing_message
 873            .as_ref()
 874            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 875    }
 876
 877    pub fn context_store(&self) -> &Entity<ContextStore> {
 878        &self.context_store
 879    }
 880
 881    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 882        &self.thread_store
 883    }
 884
 885    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 886        &self.text_thread_store
 887    }
 888
 889    fn push_rendered_message(&mut self, id: MessageId, rendered_message: RenderedMessage) {
 890        let old_len = self.messages.len();
 891        self.messages.push(id);
 892        self.list_state.splice(old_len..old_len, 1);
 893        self.rendered_messages_by_id.insert(id, rendered_message);
 894    }
 895
 896    fn deleted_message(&mut self, id: &MessageId) {
 897        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 898            return;
 899        };
 900        self.messages.remove(index);
 901        self.list_state.splice(index..index + 1, 0);
 902        self.rendered_messages_by_id.remove(id);
 903    }
 904
 905    fn render_tool_use_markdown(
 906        &mut self,
 907        tool_use_id: LanguageModelToolUseId,
 908        tool_label: impl Into<SharedString>,
 909        tool_input: &str,
 910        tool_output: SharedString,
 911        cx: &mut Context<Self>,
 912    ) {
 913        let rendered = self
 914            .rendered_tool_uses
 915            .entry(tool_use_id)
 916            .or_insert_with(|| RenderedToolUse {
 917                label: cx.new(|cx| {
 918                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 919                }),
 920                input: cx.new(|cx| {
 921                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 922                }),
 923                output: cx.new(|cx| {
 924                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 925                }),
 926            });
 927
 928        rendered.label.update(cx, |this, cx| {
 929            this.replace(tool_label, cx);
 930        });
 931        rendered.input.update(cx, |this, cx| {
 932            this.replace(
 933                MarkdownCodeBlock {
 934                    tag: "json",
 935                    text: tool_input,
 936                }
 937                .to_string(),
 938                cx,
 939            );
 940        });
 941        rendered.output.update(cx, |this, cx| {
 942            this.replace(tool_output, cx);
 943        });
 944    }
 945
 946    fn handle_thread_event(
 947        &mut self,
 948        _thread: &Entity<Thread>,
 949        event: &ThreadEvent,
 950        window: &mut Window,
 951        cx: &mut Context<Self>,
 952    ) {
 953        match event {
 954            ThreadEvent::CancelEditing => {
 955                if self.editing_message.is_some() {
 956                    self.cancel_editing_message(&menu::Cancel, window, cx);
 957                }
 958            }
 959            ThreadEvent::ShowError(error) => {
 960                self.last_error = Some(error.clone());
 961            }
 962            ThreadEvent::NewRequest => {
 963                cx.notify();
 964            }
 965            ThreadEvent::CompletionCanceled => {
 966                self.thread.update(cx, |thread, cx| {
 967                    thread.project().update(cx, |project, cx| {
 968                        project.set_agent_location(None, cx);
 969                    })
 970                });
 971                self.workspace
 972                    .update(cx, |workspace, cx| {
 973                        if workspace.is_being_followed(CollaboratorId::Agent) {
 974                            workspace.unfollow(CollaboratorId::Agent, window, cx);
 975                        }
 976                    })
 977                    .ok();
 978                cx.notify();
 979            }
 980            ThreadEvent::StreamedCompletion
 981            | ThreadEvent::SummaryGenerated
 982            | ThreadEvent::SummaryChanged => {
 983                self.save_thread(cx);
 984            }
 985            ThreadEvent::Stopped(reason) => {
 986                match reason {
 987                    Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 988                        let used_tools = self.thread.read(cx).used_tools_since_last_user_message();
 989                        self.notify_with_sound(
 990                            if used_tools {
 991                                "Finished running tools"
 992                            } else {
 993                                "New message"
 994                            },
 995                            IconName::ZedAssistant,
 996                            window,
 997                            cx,
 998                        );
 999                    }
1000                    Ok(StopReason::ToolUse) => {
1001                        // Don't notify for intermediate tool use
1002                    }
1003                    Ok(StopReason::Refusal) => {
1004                        let model_name = self
1005                            .thread
1006                            .read(cx)
1007                            .configured_model()
1008                            .map(|configured| configured.model.name().0.to_string())
1009                            .unwrap_or_else(|| "The model".to_string());
1010                        let refusal_message = format!(
1011                            "{} refused to respond to this prompt. This can happen when a model believes the prompt violates its content policy or safety guidelines, so rephrasing it can sometimes address the issue.",
1012                            model_name
1013                        );
1014                        self.last_error = Some(ThreadError::Message {
1015                            header: SharedString::from("Request Refused"),
1016                            message: SharedString::from(refusal_message),
1017                        });
1018                        self.notify_with_sound(
1019                            format!("{} refused to respond", model_name),
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                    && 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                {
1099                    self.list_state.splice(index..index + 1, 1);
1100                    self.rendered_messages_by_id
1101                        .insert(*message_id, rendered_message);
1102                    self.scroll_to_bottom(cx);
1103                    self.save_thread(cx);
1104                    cx.notify();
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, 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            && let Some(pop_up) = screen_window.entity(cx).log_err()
1286        {
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                            && let Some(pop_up) = pop_up_weak.upgrade()
1333                        {
1334                            pop_up.update(cx, |_, cx| {
1335                                cx.emit(AgentNotificationEvent::Dismissed);
1336                            });
1337                        }
1338                    })
1339                });
1340        }
1341    }
1342
1343    /// Spawns a task to save the active thread.
1344    ///
1345    /// Only one task to save the thread will be in flight at a time.
1346    fn save_thread(&mut self, cx: &mut Context<Self>) {
1347        let thread = self.thread.clone();
1348        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1349            let task = this
1350                .update(cx, |this, cx| {
1351                    this.thread_store
1352                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1353                })
1354                .ok();
1355
1356            if let Some(task) = task {
1357                task.await.log_err();
1358            }
1359        }));
1360    }
1361
1362    fn start_editing_message(
1363        &mut self,
1364        message_id: MessageId,
1365        message_text: impl Into<Arc<str>>,
1366        message_creases: &[MessageCrease],
1367        window: &mut Window,
1368        cx: &mut Context<Self>,
1369    ) {
1370        let editor = crate::message_editor::create_editor(
1371            self.workspace.clone(),
1372            self.context_store.downgrade(),
1373            self.thread_store.downgrade(),
1374            self.text_thread_store.downgrade(),
1375            EDIT_PREVIOUS_MESSAGE_MIN_LINES,
1376            None,
1377            window,
1378            cx,
1379        );
1380        editor.update(cx, |editor, cx| {
1381            editor.set_text(message_text, window, cx);
1382            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1383            editor.focus_handle(cx).focus(window);
1384            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1385        });
1386        let buffer_edited_subscription =
1387            cx.subscribe(&editor, |this, _, event: &EditorEvent, cx| {
1388                if event == &EditorEvent::BufferEdited {
1389                    this.update_editing_message_token_count(true, cx);
1390                }
1391            });
1392
1393        let context_picker_menu_handle = PopoverMenuHandle::default();
1394        let context_strip = cx.new(|cx| {
1395            ContextStrip::new(
1396                self.context_store.clone(),
1397                self.workspace.clone(),
1398                Some(self.thread_store.downgrade()),
1399                Some(self.text_thread_store.downgrade()),
1400                context_picker_menu_handle.clone(),
1401                SuggestContextKind::File,
1402                ModelUsageContext::Thread(self.thread.clone()),
1403                window,
1404                cx,
1405            )
1406        });
1407
1408        let context_strip_subscription =
1409            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1410
1411        self.editing_message = Some((
1412            message_id,
1413            EditingMessageState {
1414                editor: editor.clone(),
1415                context_strip,
1416                context_picker_menu_handle,
1417                last_estimated_token_count: None,
1418                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1419                _update_token_count_task: None,
1420            },
1421        ));
1422        self.update_editing_message_token_count(false, cx);
1423        cx.notify();
1424    }
1425
1426    fn handle_context_strip_event(
1427        &mut self,
1428        _context_strip: &Entity<ContextStrip>,
1429        event: &ContextStripEvent,
1430        window: &mut Window,
1431        cx: &mut Context<Self>,
1432    ) {
1433        if let Some((_, state)) = self.editing_message.as_ref() {
1434            match event {
1435                ContextStripEvent::PickerDismissed
1436                | ContextStripEvent::BlurredEmpty
1437                | ContextStripEvent::BlurredDown => {
1438                    let editor_focus_handle = state.editor.focus_handle(cx);
1439                    window.focus(&editor_focus_handle);
1440                }
1441                ContextStripEvent::BlurredUp => {}
1442            }
1443        }
1444    }
1445
1446    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1447        let Some((message_id, state)) = self.editing_message.as_mut() else {
1448            return;
1449        };
1450
1451        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1452        state._update_token_count_task.take();
1453
1454        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1455            state.last_estimated_token_count.take();
1456            return;
1457        };
1458
1459        let editor = state.editor.clone();
1460        let thread = self.thread.clone();
1461        let message_id = *message_id;
1462
1463        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1464            if debounce {
1465                cx.background_executor()
1466                    .timer(Duration::from_millis(200))
1467                    .await;
1468            }
1469
1470            let token_count = if let Some(task) = cx
1471                .update(|cx| {
1472                    let Some(message) = thread.read(cx).message(message_id) else {
1473                        log::error!("Message that was being edited no longer exists");
1474                        return None;
1475                    };
1476                    let message_text = editor.read(cx).text(cx);
1477
1478                    if message_text.is_empty() && message.loaded_context.is_empty() {
1479                        return None;
1480                    }
1481
1482                    let mut request_message = LanguageModelRequestMessage {
1483                        role: language_model::Role::User,
1484                        content: Vec::new(),
1485                        cache: false,
1486                    };
1487
1488                    message
1489                        .loaded_context
1490                        .add_to_request_message(&mut request_message);
1491
1492                    if !message_text.is_empty() {
1493                        request_message
1494                            .content
1495                            .push(MessageContent::Text(message_text));
1496                    }
1497
1498                    let request = language_model::LanguageModelRequest {
1499                        thread_id: None,
1500                        prompt_id: None,
1501                        intent: None,
1502                        mode: None,
1503                        messages: vec![request_message],
1504                        tools: vec![],
1505                        tool_choice: None,
1506                        stop: vec![],
1507                        temperature: AgentSettings::temperature_for_model(
1508                            &configured_model.model,
1509                            cx,
1510                        ),
1511                        thinking_allowed: true,
1512                    };
1513
1514                    Some(configured_model.model.count_tokens(request, cx))
1515                })
1516                .ok()
1517                .flatten()
1518            {
1519                task.await.log_err()
1520            } else {
1521                Some(0)
1522            };
1523
1524            if let Some(token_count) = token_count {
1525                this.update(cx, |this, cx| {
1526                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1527                        return;
1528                    };
1529
1530                    state.last_estimated_token_count = Some(token_count);
1531                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1532                })
1533                .ok();
1534            };
1535        }));
1536    }
1537
1538    fn toggle_context_picker(
1539        &mut self,
1540        _: &crate::ToggleContextPicker,
1541        window: &mut Window,
1542        cx: &mut Context<Self>,
1543    ) {
1544        if let Some((_, state)) = self.editing_message.as_mut() {
1545            let handle = state.context_picker_menu_handle.clone();
1546            window.defer(cx, move |window, cx| {
1547                handle.toggle(window, cx);
1548            });
1549        }
1550    }
1551
1552    fn remove_all_context(
1553        &mut self,
1554        _: &crate::RemoveAllContext,
1555        _window: &mut Window,
1556        cx: &mut Context<Self>,
1557    ) {
1558        self.context_store.update(cx, |store, cx| store.clear(cx));
1559        cx.notify();
1560    }
1561
1562    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1563        if let Some((_, state)) = self.editing_message.as_mut() {
1564            if state.context_picker_menu_handle.is_deployed() {
1565                cx.propagate();
1566            } else {
1567                state.context_strip.focus_handle(cx).focus(window);
1568            }
1569        }
1570    }
1571
1572    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1573        attach_pasted_images_as_context(&self.context_store, cx);
1574    }
1575
1576    fn cancel_editing_message(
1577        &mut self,
1578        _: &menu::Cancel,
1579        window: &mut Window,
1580        cx: &mut Context<Self>,
1581    ) {
1582        self.editing_message.take();
1583        cx.notify();
1584
1585        if let Some(workspace) = self.workspace.upgrade() {
1586            workspace.update(cx, |workspace, cx| {
1587                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1588                    panel.focus_handle(cx).focus(window);
1589                }
1590            });
1591        }
1592    }
1593
1594    fn confirm_editing_message(
1595        &mut self,
1596        _: &menu::Confirm,
1597        window: &mut Window,
1598        cx: &mut Context<Self>,
1599    ) {
1600        let Some((message_id, state)) = self.editing_message.take() else {
1601            return;
1602        };
1603
1604        let Some(model) = self
1605            .thread
1606            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1607        else {
1608            return;
1609        };
1610
1611        let edited_text = state.editor.read(cx).text(cx);
1612
1613        let creases = state.editor.update(cx, extract_message_creases);
1614
1615        let new_context = self
1616            .context_store
1617            .read(cx)
1618            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1619
1620        let project = self.thread.read(cx).project().clone();
1621        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1622
1623        let git_store = project.read(cx).git_store().clone();
1624        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1625
1626        let load_context_task = context::load_context(new_context, &project, &prompt_store, cx);
1627        self._load_edited_message_context_task =
1628            Some(cx.spawn_in(window, async move |this, cx| {
1629                let (context, checkpoint) =
1630                    futures::future::join(load_context_task, checkpoint).await;
1631                let _ = this
1632                    .update_in(cx, |this, window, cx| {
1633                        this.thread.update(cx, |thread, cx| {
1634                            thread.edit_message(
1635                                message_id,
1636                                Role::User,
1637                                vec![MessageSegment::Text(edited_text)],
1638                                creases,
1639                                Some(context.loaded_context),
1640                                checkpoint.ok(),
1641                                cx,
1642                            );
1643                            for message_id in this.messages_after(message_id) {
1644                                thread.delete_message(*message_id, cx);
1645                            }
1646                        });
1647
1648                        this.thread.update(cx, |thread, cx| {
1649                            thread.advance_prompt_id();
1650                            thread.cancel_last_completion(Some(window.window_handle()), cx);
1651                            thread.send_to_model(
1652                                model.model,
1653                                CompletionIntent::UserPrompt,
1654                                Some(window.window_handle()),
1655                                cx,
1656                            );
1657                        });
1658                        this._load_edited_message_context_task = None;
1659                        cx.notify();
1660                    })
1661                    .log_err();
1662            }));
1663
1664        if let Some(workspace) = self.workspace.upgrade() {
1665            workspace.update(cx, |workspace, cx| {
1666                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1667                    panel.focus_handle(cx).focus(window);
1668                }
1669            });
1670        }
1671    }
1672
1673    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1674        self.messages
1675            .iter()
1676            .position(|id| *id == message_id)
1677            .map(|index| &self.messages[index + 1..])
1678            .unwrap_or(&[])
1679    }
1680
1681    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1682        self.cancel_editing_message(&menu::Cancel, window, cx);
1683    }
1684
1685    fn handle_regenerate_click(
1686        &mut self,
1687        _: &ClickEvent,
1688        window: &mut Window,
1689        cx: &mut Context<Self>,
1690    ) {
1691        self.confirm_editing_message(&menu::Confirm, window, cx);
1692    }
1693
1694    fn handle_feedback_click(
1695        &mut self,
1696        message_id: MessageId,
1697        feedback: ThreadFeedback,
1698        window: &mut Window,
1699        cx: &mut Context<Self>,
1700    ) {
1701        let report = self.thread.update(cx, |thread, cx| {
1702            thread.report_message_feedback(message_id, feedback, cx)
1703        });
1704
1705        cx.spawn(async move |this, cx| {
1706            report.await?;
1707            this.update(cx, |_this, cx| cx.notify())
1708        })
1709        .detach_and_log_err(cx);
1710
1711        match feedback {
1712            ThreadFeedback::Positive => {
1713                self.open_feedback_editors.remove(&message_id);
1714            }
1715            ThreadFeedback::Negative => {
1716                self.handle_show_feedback_comments(message_id, window, cx);
1717            }
1718        }
1719    }
1720
1721    fn handle_show_feedback_comments(
1722        &mut self,
1723        message_id: MessageId,
1724        window: &mut Window,
1725        cx: &mut Context<Self>,
1726    ) {
1727        let buffer = cx.new(|cx| {
1728            let empty_string = String::new();
1729            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1730        });
1731
1732        let editor = cx.new(|cx| {
1733            let mut editor = Editor::new(
1734                editor::EditorMode::AutoHeight {
1735                    min_lines: 1,
1736                    max_lines: Some(4),
1737                },
1738                buffer,
1739                None,
1740                window,
1741                cx,
1742            );
1743            editor.set_placeholder_text(
1744                "What went wrong? Share your feedback so we can improve.",
1745                cx,
1746            );
1747            editor
1748        });
1749
1750        editor.read(cx).focus_handle(cx).focus(window);
1751        self.open_feedback_editors.insert(message_id, editor);
1752        cx.notify();
1753    }
1754
1755    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1756        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1757            return;
1758        };
1759
1760        let report_task = self.thread.update(cx, |thread, cx| {
1761            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1762        });
1763
1764        let comments = editor.read(cx).text(cx);
1765        if !comments.is_empty() {
1766            let thread_id = self.thread.read(cx).id().clone();
1767            let comments_value = String::from(comments.as_str());
1768
1769            let message_content = self
1770                .thread
1771                .read(cx)
1772                .message(message_id)
1773                .map(|msg| msg.to_message_content())
1774                .unwrap_or_default();
1775
1776            telemetry::event!(
1777                "Assistant Thread Feedback Comments",
1778                thread_id,
1779                message_id = message_id.as_usize(),
1780                message_content,
1781                comments = comments_value
1782            );
1783
1784            self.open_feedback_editors.remove(&message_id);
1785
1786            cx.spawn(async move |this, cx| {
1787                report_task.await?;
1788                this.update(cx, |_this, cx| cx.notify())
1789            })
1790            .detach_and_log_err(cx);
1791        }
1792    }
1793
1794    fn render_edit_message_editor(
1795        &self,
1796        state: &EditingMessageState,
1797        _window: &mut Window,
1798        cx: &Context<Self>,
1799    ) -> impl IntoElement {
1800        let settings = ThemeSettings::get_global(cx);
1801        let font_size = TextSize::Small
1802            .rems(cx)
1803            .to_pixels(settings.agent_font_size(cx));
1804        let line_height = font_size * 1.75;
1805
1806        let colors = cx.theme().colors();
1807
1808        let text_style = TextStyle {
1809            color: colors.text,
1810            font_family: settings.buffer_font.family.clone(),
1811            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1812            font_features: settings.buffer_font.features.clone(),
1813            font_size: font_size.into(),
1814            line_height: line_height.into(),
1815            ..Default::default()
1816        };
1817
1818        v_flex()
1819            .key_context("EditMessageEditor")
1820            .on_action(cx.listener(Self::toggle_context_picker))
1821            .on_action(cx.listener(Self::remove_all_context))
1822            .on_action(cx.listener(Self::move_up))
1823            .on_action(cx.listener(Self::cancel_editing_message))
1824            .on_action(cx.listener(Self::confirm_editing_message))
1825            .capture_action(cx.listener(Self::paste))
1826            .min_h_6()
1827            .w_full()
1828            .flex_grow()
1829            .gap_2()
1830            .child(state.context_strip.clone())
1831            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1832                &state.editor,
1833                EditorStyle {
1834                    background: colors.editor_background,
1835                    local_player: cx.theme().players().local(),
1836                    text: text_style,
1837                    syntax: cx.theme().syntax().clone(),
1838                    ..Default::default()
1839                },
1840            )))
1841    }
1842
1843    fn render_message(
1844        &mut self,
1845        ix: usize,
1846        window: &mut Window,
1847        cx: &mut Context<Self>,
1848    ) -> AnyElement {
1849        let message_id = self.messages[ix];
1850        let workspace = self.workspace.clone();
1851        let thread = self.thread.read(cx);
1852
1853        let is_first_message = ix == 0;
1854        let is_last_message = ix == self.messages.len() - 1;
1855
1856        let Some(message) = thread.message(message_id) else {
1857            return Empty.into_any();
1858        };
1859
1860        let is_generating = thread.is_generating();
1861        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1862
1863        let loading_dots = (is_generating && is_last_message).then(|| {
1864            h_flex()
1865                .h_8()
1866                .my_3()
1867                .mx_5()
1868                .when(is_generating_stale || message.is_hidden, |this| {
1869                    this.child(LoadingLabel::new("").size(LabelSize::Small))
1870                })
1871        });
1872
1873        if message.is_hidden {
1874            return div().children(loading_dots).into_any();
1875        }
1876
1877        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1878            return Empty.into_any();
1879        };
1880
1881        // Get all the data we need from thread before we start using it in closures
1882        let checkpoint = thread.checkpoint_for_message(message_id);
1883        let configured_model = thread.configured_model().map(|m| m.model);
1884        let added_context = thread
1885            .context_for_message(message_id)
1886            .map(|context| AddedContext::new_attached(context, configured_model.as_ref(), cx))
1887            .collect::<Vec<_>>();
1888
1889        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1890        let has_tool_uses = !tool_uses.is_empty();
1891
1892        let editing_message_state = self
1893            .editing_message
1894            .as_ref()
1895            .filter(|(id, _)| *id == message_id)
1896            .map(|(_, state)| state);
1897
1898        let (editor_bg_color, panel_bg) = {
1899            let colors = cx.theme().colors();
1900            (colors.editor_background, colors.panel_background)
1901        };
1902
1903        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileMarkdown)
1904            .shape(ui::IconButtonShape::Square)
1905            .icon_size(IconSize::Small)
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::ArrowUp)
1920            .shape(ui::IconButtonShape::Square)
1921            .icon_size(IconSize::Small)
1922            .icon_color(Color::Ignored)
1923            .tooltip(Tooltip::text("Scroll To Top"))
1924            .on_click(cx.listener(move |this, _, _, cx| {
1925                this.scroll_to_top(cx);
1926            }));
1927
1928        let show_feedback = thread.is_turn_end(ix);
1929        let feedback_container = h_flex()
1930            .group("feedback_container")
1931            .mt_1()
1932            .py_2()
1933            .px(RESPONSE_PADDING_X)
1934            .mr_1()
1935            .gap_1()
1936            .opacity(0.4)
1937            .hover(|style| style.opacity(1.))
1938            .gap_1p5()
1939            .flex_wrap()
1940            .justify_end();
1941        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1942            Some(feedback) => feedback_container
1943                .child(
1944                    div().visible_on_hover("feedback_container").child(
1945                        Label::new(match feedback {
1946                            ThreadFeedback::Positive => "Thanks for your feedback!",
1947                            ThreadFeedback::Negative => {
1948                                "We appreciate your feedback and will use it to improve."
1949                            }
1950                        })
1951                    .color(Color::Muted)
1952                    .size(LabelSize::XSmall)
1953                    .truncate())
1954                )
1955                .child(
1956                    h_flex()
1957                        .child(
1958                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1959                                .shape(ui::IconButtonShape::Square)
1960                                .icon_size(IconSize::Small)
1961                                .icon_color(match feedback {
1962                                    ThreadFeedback::Positive => Color::Accent,
1963                                    ThreadFeedback::Negative => Color::Ignored,
1964                                })
1965                                .tooltip(Tooltip::text("Helpful Response"))
1966                                .on_click(cx.listener(move |this, _, window, cx| {
1967                                    this.handle_feedback_click(
1968                                        message_id,
1969                                        ThreadFeedback::Positive,
1970                                        window,
1971                                        cx,
1972                                    );
1973                                })),
1974                        )
1975                        .child(
1976                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1977                                .shape(ui::IconButtonShape::Square)
1978                                .icon_size(IconSize::Small)
1979                                .icon_color(match feedback {
1980                                    ThreadFeedback::Positive => Color::Ignored,
1981                                    ThreadFeedback::Negative => Color::Accent,
1982                                })
1983                                .tooltip(Tooltip::text("Not Helpful"))
1984                                .on_click(cx.listener(move |this, _, window, cx| {
1985                                    this.handle_feedback_click(
1986                                        message_id,
1987                                        ThreadFeedback::Negative,
1988                                        window,
1989                                        cx,
1990                                    );
1991                                })),
1992                        )
1993                        .child(open_as_markdown),
1994                )
1995                .into_any_element(),
1996            None if AgentSettings::get_global(cx).enable_feedback =>
1997                feedback_container
1998                .child(
1999                    div().visible_on_hover("feedback_container").child(
2000                        Label::new(
2001                            "Rating the thread sends all of your current conversation to the Zed team.",
2002                        )
2003                        .color(Color::Muted)
2004                    .size(LabelSize::XSmall)
2005                    .truncate())
2006                )
2007                .child(
2008                    h_flex()
2009                        .child(
2010                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
2011                                .shape(ui::IconButtonShape::Square)
2012                                .icon_size(IconSize::Small)
2013                                .icon_color(Color::Ignored)
2014                                .tooltip(Tooltip::text("Helpful Response"))
2015                                .on_click(cx.listener(move |this, _, window, cx| {
2016                                    this.handle_feedback_click(
2017                                        message_id,
2018                                        ThreadFeedback::Positive,
2019                                        window,
2020                                        cx,
2021                                    );
2022                                })),
2023                        )
2024                        .child(
2025                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
2026                                .shape(ui::IconButtonShape::Square)
2027                                .icon_size(IconSize::Small)
2028                                .icon_color(Color::Ignored)
2029                                .tooltip(Tooltip::text("Not Helpful"))
2030                                .on_click(cx.listener(move |this, _, window, cx| {
2031                                    this.handle_feedback_click(
2032                                        message_id,
2033                                        ThreadFeedback::Negative,
2034                                        window,
2035                                        cx,
2036                                    );
2037                                })),
2038                        )
2039                        .child(open_as_markdown)
2040                        .child(scroll_to_top),
2041                )
2042                .into_any_element(),
2043            None => feedback_container
2044                .child(h_flex()
2045                    .child(open_as_markdown))
2046                    .child(scroll_to_top)
2047                .into_any_element(),
2048        };
2049
2050        let message_is_empty = message.should_display_content();
2051        let has_content = !message_is_empty || !added_context.is_empty();
2052
2053        let message_content = has_content.then(|| {
2054            if let Some(state) = editing_message_state.as_ref() {
2055                self.render_edit_message_editor(state, window, cx)
2056                    .into_any_element()
2057            } else {
2058                v_flex()
2059                    .w_full()
2060                    .gap_1()
2061                    .when(!added_context.is_empty(), |parent| {
2062                        parent.child(h_flex().flex_wrap().gap_1().children(
2063                            added_context.into_iter().map(|added_context| {
2064                                let context = added_context.handle.clone();
2065                                ContextPill::added(added_context, false, false, None).on_click(
2066                                    Rc::new(cx.listener({
2067                                        let workspace = workspace.clone();
2068                                        move |_, _, window, cx| {
2069                                            if let Some(workspace) = workspace.upgrade() {
2070                                                open_context(&context, workspace, window, cx);
2071                                                cx.notify();
2072                                            }
2073                                        }
2074                                    })),
2075                                )
2076                            }),
2077                        ))
2078                    })
2079                    .when(!message_is_empty, |parent| {
2080                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
2081                            message_id,
2082                            rendered_message,
2083                            has_tool_uses,
2084                            workspace.clone(),
2085                            window,
2086                            cx,
2087                        )))
2088                    })
2089                    .into_any_element()
2090            }
2091        });
2092
2093        let styled_message = if message.ui_only {
2094            self.render_ui_notification(message_content, ix, cx)
2095        } else {
2096            match message.role {
2097                Role::User => {
2098                    let colors = cx.theme().colors();
2099                    v_flex()
2100                        .id(("message-container", ix))
2101                        .pt_2()
2102                        .pl_2()
2103                        .pr_2p5()
2104                        .pb_4()
2105                        .child(
2106                            v_flex()
2107                                .id(("user-message", ix))
2108                                .bg(editor_bg_color)
2109                                .rounded_lg()
2110                                .shadow_md()
2111                                .border_1()
2112                                .border_color(colors.border)
2113                                .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2114                                .child(
2115                                    v_flex()
2116                                        .p_2p5()
2117                                        .gap_1()
2118                                        .children(message_content)
2119                                        .when_some(editing_message_state, |this, state| {
2120                                            let focus_handle = state.editor.focus_handle(cx);
2121
2122                                            this.child(
2123                                                h_flex()
2124                                                    .w_full()
2125                                                    .gap_1()
2126                                                    .justify_between()
2127                                                    .flex_wrap()
2128                                                    .child(
2129                                                        h_flex()
2130                                                            .gap_1p5()
2131                                                            .child(
2132                                                                div()
2133                                                                    .opacity(0.8)
2134                                                                    .child(
2135                                                                        Icon::new(IconName::Warning)
2136                                                                            .size(IconSize::Indicator)
2137                                                                            .color(Color::Warning)
2138                                                                    ),
2139                                                            )
2140                                                            .child(
2141                                                                Label::new("Editing will restart the thread from this point.")
2142                                                                    .color(Color::Muted)
2143                                                                    .size(LabelSize::XSmall),
2144                                                            ),
2145                                                    )
2146                                                    .child(
2147                                                        h_flex()
2148                                                            .gap_0p5()
2149                                                            .child(
2150                                                                IconButton::new(
2151                                                                    "cancel-edit-message",
2152                                                                    IconName::Close,
2153                                                                )
2154                                                                .shape(ui::IconButtonShape::Square)
2155                                                                .icon_color(Color::Error)
2156                                                                .icon_size(IconSize::Small)
2157                                                                .tooltip({
2158                                                                    let focus_handle = focus_handle.clone();
2159                                                                    move |window, cx| {
2160                                                                        Tooltip::for_action_in(
2161                                                                            "Cancel Edit",
2162                                                                            &menu::Cancel,
2163                                                                            &focus_handle,
2164                                                                            window,
2165                                                                            cx,
2166                                                                        )
2167                                                                    }
2168                                                                })
2169                                                                .on_click(cx.listener(Self::handle_cancel_click)),
2170                                                            )
2171                                                            .child(
2172                                                                IconButton::new(
2173                                                                    "confirm-edit-message",
2174                                                                    IconName::Return,
2175                                                                )
2176                                                                .disabled(state.editor.read(cx).is_empty(cx))
2177                                                                .shape(ui::IconButtonShape::Square)
2178                                                                .icon_color(Color::Muted)
2179                                                                .icon_size(IconSize::Small)
2180                                                                .tooltip({
2181                                                                    move |window, cx| {
2182                                                                        Tooltip::for_action_in(
2183                                                                            "Regenerate",
2184                                                                            &menu::Confirm,
2185                                                                            &focus_handle,
2186                                                                            window,
2187                                                                            cx,
2188                                                                        )
2189                                                                    }
2190                                                                })
2191                                                                .on_click(
2192                                                                    cx.listener(Self::handle_regenerate_click),
2193                                                                ),
2194                                                            ),
2195                                                    )
2196                                            )
2197                                        }),
2198                                )
2199                                .on_click(cx.listener({
2200                                    let message_creases = message.creases.clone();
2201                                    move |this, _, window, cx| {
2202                                        if let Some(message_text) =
2203                                            this.thread.read(cx).message(message_id).and_then(|message| {
2204                                                message.segments.first().and_then(|segment| {
2205                                                    match segment {
2206                                                        MessageSegment::Text(message_text) => {
2207                                                            Some(Into::<Arc<str>>::into(message_text.as_str()))
2208                                                        }
2209                                                        _ => {
2210                                                            None
2211                                                        }
2212                                                    }
2213                                                })
2214                                            })
2215                                        {
2216                                            this.start_editing_message(
2217                                                message_id,
2218                                                message_text,
2219                                                &message_creases,
2220                                                window,
2221                                                cx,
2222                                            );
2223                                        }
2224                                    }
2225                                })),
2226                        )
2227                }
2228                Role::Assistant => v_flex()
2229                    .id(("message-container", ix))
2230                    .px(RESPONSE_PADDING_X)
2231                    .gap_2()
2232                    .children(message_content)
2233                    .when(has_tool_uses, |parent| {
2234                        parent.children(tool_uses.into_iter().map(|tool_use| {
2235                            self.render_tool_use(tool_use, window, workspace.clone(), cx)
2236                        }))
2237                    }),
2238                Role::System => {
2239                    let colors = cx.theme().colors();
2240                    div().id(("message-container", ix)).py_1().px_2().child(
2241                        v_flex()
2242                            .bg(colors.editor_background)
2243                            .rounded_sm()
2244                            .child(div().p_4().children(message_content)),
2245                    )
2246                }
2247            }
2248        };
2249
2250        let after_editing_message = self
2251            .editing_message
2252            .as_ref()
2253            .is_some_and(|(editing_message_id, _)| message_id > *editing_message_id);
2254
2255        let backdrop = div()
2256            .id(("backdrop", ix))
2257            .size_full()
2258            .absolute()
2259            .inset_0()
2260            .bg(panel_bg)
2261            .opacity(0.8)
2262            .block_mouse_except_scroll()
2263            .on_click(cx.listener(Self::handle_cancel_click));
2264
2265        v_flex()
2266            .w_full()
2267            .map(|parent| {
2268                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2269                    let mut is_pending = false;
2270                    let mut error = None;
2271                    if let Some(last_restore_checkpoint) =
2272                        self.thread.read(cx).last_restore_checkpoint()
2273                        && last_restore_checkpoint.message_id() == message_id
2274                    {
2275                        match last_restore_checkpoint {
2276                            LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2277                            LastRestoreCheckpoint::Error { error: err, .. } => {
2278                                error = Some(err.clone());
2279                            }
2280                        }
2281                    }
2282
2283                    let restore_checkpoint_button =
2284                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2285                            .icon(if error.is_some() {
2286                                IconName::XCircle
2287                            } else {
2288                                IconName::Undo
2289                            })
2290                            .icon_size(IconSize::XSmall)
2291                            .icon_position(IconPosition::Start)
2292                            .icon_color(if error.is_some() {
2293                                Some(Color::Error)
2294                            } else {
2295                                None
2296                            })
2297                            .label_size(LabelSize::XSmall)
2298                            .disabled(is_pending)
2299                            .on_click(cx.listener(move |this, _, _window, cx| {
2300                                this.thread.update(cx, |thread, cx| {
2301                                    thread
2302                                        .restore_checkpoint(checkpoint.clone(), cx)
2303                                        .detach_and_log_err(cx);
2304                                });
2305                            }));
2306
2307                    let restore_checkpoint_button = if is_pending {
2308                        restore_checkpoint_button
2309                            .with_animation(
2310                                ("pulsating-restore-checkpoint-button", ix),
2311                                Animation::new(Duration::from_secs(2))
2312                                    .repeat()
2313                                    .with_easing(pulsating_between(0.6, 1.)),
2314                                |label, delta| label.alpha(delta),
2315                            )
2316                            .into_any_element()
2317                    } else if let Some(error) = error {
2318                        restore_checkpoint_button
2319                            .tooltip(Tooltip::text(error))
2320                            .into_any_element()
2321                    } else {
2322                        restore_checkpoint_button.into_any_element()
2323                    };
2324
2325                    parent.child(
2326                        h_flex()
2327                            .pt_2p5()
2328                            .px_2p5()
2329                            .w_full()
2330                            .gap_1()
2331                            .child(ui::Divider::horizontal())
2332                            .child(restore_checkpoint_button)
2333                            .child(ui::Divider::horizontal()),
2334                    )
2335                } else {
2336                    parent
2337                }
2338            })
2339            .when(is_first_message, |parent| {
2340                parent.child(self.render_rules_item(cx))
2341            })
2342            .child(styled_message)
2343            .children(loading_dots)
2344            .when(show_feedback, move |parent| {
2345                parent.child(feedback_items).when_some(
2346                    self.open_feedback_editors.get(&message_id),
2347                    move |parent, feedback_editor| {
2348                        let focus_handle = feedback_editor.focus_handle(cx);
2349                        parent.child(
2350                            v_flex()
2351                                .key_context("AgentFeedbackMessageEditor")
2352                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2353                                    this.open_feedback_editors.remove(&message_id);
2354                                    cx.notify();
2355                                }))
2356                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2357                                    this.submit_feedback_message(message_id, cx);
2358                                    cx.notify();
2359                                }))
2360                                .mb_2()
2361                                .mx_4()
2362                                .p_2()
2363                                .rounded_md()
2364                                .border_1()
2365                                .border_color(cx.theme().colors().border)
2366                                .bg(cx.theme().colors().editor_background)
2367                                .child(feedback_editor.clone())
2368                                .child(
2369                                    h_flex()
2370                                        .gap_1()
2371                                        .justify_end()
2372                                        .child(
2373                                            Button::new("dismiss-feedback-message", "Cancel")
2374                                                .label_size(LabelSize::Small)
2375                                                .key_binding(
2376                                                    KeyBinding::for_action_in(
2377                                                        &menu::Cancel,
2378                                                        &focus_handle,
2379                                                        window,
2380                                                        cx,
2381                                                    )
2382                                                    .map(|kb| kb.size(rems_from_px(10.))),
2383                                                )
2384                                                .on_click(cx.listener(
2385                                                    move |this, _, _window, cx| {
2386                                                        this.open_feedback_editors
2387                                                            .remove(&message_id);
2388                                                        cx.notify();
2389                                                    },
2390                                                )),
2391                                        )
2392                                        .child(
2393                                            Button::new(
2394                                                "submit-feedback-message",
2395                                                "Share Feedback",
2396                                            )
2397                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2398                                            .label_size(LabelSize::Small)
2399                                            .key_binding(
2400                                                KeyBinding::for_action_in(
2401                                                    &menu::Confirm,
2402                                                    &focus_handle,
2403                                                    window,
2404                                                    cx,
2405                                                )
2406                                                .map(|kb| kb.size(rems_from_px(10.))),
2407                                            )
2408                                            .on_click(
2409                                                cx.listener(move |this, _, _window, cx| {
2410                                                    this.submit_feedback_message(message_id, cx);
2411                                                    cx.notify()
2412                                                }),
2413                                            ),
2414                                        ),
2415                                ),
2416                        )
2417                    },
2418                )
2419            })
2420            .when(after_editing_message, |parent| {
2421                // Backdrop to dim out the whole thread below the editing user message
2422                parent.relative().child(backdrop)
2423            })
2424            .into_any()
2425    }
2426
2427    fn render_message_content(
2428        &self,
2429        message_id: MessageId,
2430        rendered_message: &RenderedMessage,
2431        has_tool_uses: bool,
2432        workspace: WeakEntity<Workspace>,
2433        window: &Window,
2434        cx: &Context<Self>,
2435    ) -> impl IntoElement {
2436        let is_last_message = self.messages.last() == Some(&message_id);
2437        let is_generating = self.thread.read(cx).is_generating();
2438        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2439            rendered_message
2440                .segments
2441                .iter()
2442                .enumerate()
2443                .next_back()
2444                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2445                .map(|(index, _)| index)
2446        } else {
2447            None
2448        };
2449
2450        let message_role = self
2451            .thread
2452            .read(cx)
2453            .message(message_id)
2454            .map(|m| m.role)
2455            .unwrap_or(Role::User);
2456
2457        let is_assistant_message = message_role == Role::Assistant;
2458        let is_user_message = message_role == Role::User;
2459
2460        v_flex()
2461            .text_ui(cx)
2462            .gap_2()
2463            .when(is_user_message, |this| this.text_xs())
2464            .children(
2465                rendered_message.segments.iter().enumerate().map(
2466                    |(index, segment)| match segment {
2467                        RenderedMessageSegment::Thinking {
2468                            content,
2469                            scroll_handle,
2470                        } => self
2471                            .render_message_thinking_segment(
2472                                message_id,
2473                                index,
2474                                content.clone(),
2475                                scroll_handle,
2476                                Some(index) == pending_thinking_segment_index,
2477                                window,
2478                                cx,
2479                            )
2480                            .into_any_element(),
2481                        RenderedMessageSegment::Text(markdown) => {
2482                            let markdown_element = MarkdownElement::new(
2483                                markdown.clone(),
2484                                if is_user_message {
2485                                    let mut style = default_markdown_style(window, cx);
2486                                    let mut text_style = window.text_style();
2487                                    let theme_settings = ThemeSettings::get_global(cx);
2488
2489                                    let buffer_font = theme_settings.buffer_font.family.clone();
2490                                    let buffer_font_size = TextSize::Small.rems(cx);
2491
2492                                    text_style.refine(&TextStyleRefinement {
2493                                        font_family: Some(buffer_font),
2494                                        font_size: Some(buffer_font_size.into()),
2495                                        ..Default::default()
2496                                    });
2497
2498                                    style.base_text_style = text_style;
2499                                    style
2500                                } else {
2501                                    default_markdown_style(window, cx)
2502                                },
2503                            );
2504
2505                            let markdown_element = if is_assistant_message {
2506                                markdown_element.code_block_renderer(
2507                                    markdown::CodeBlockRenderer::Custom {
2508                                        render: Arc::new({
2509                                            let workspace = workspace.clone();
2510                                            let active_thread = cx.entity();
2511                                            move |kind,
2512                                                  parsed_markdown,
2513                                                  range,
2514                                                  metadata,
2515                                                  window,
2516                                                  cx| {
2517                                                render_markdown_code_block(
2518                                                    message_id,
2519                                                    range.start,
2520                                                    kind,
2521                                                    parsed_markdown,
2522                                                    metadata,
2523                                                    active_thread.clone(),
2524                                                    workspace.clone(),
2525                                                    window,
2526                                                    cx,
2527                                                )
2528                                            }
2529                                        }),
2530                                        transform: Some(Arc::new({
2531                                            let active_thread = cx.entity();
2532
2533                                            move |element, range, _, _, cx| {
2534                                                let is_expanded = active_thread
2535                                                    .read(cx)
2536                                                    .is_codeblock_expanded(message_id, range.start);
2537
2538                                                if is_expanded {
2539                                                    return element;
2540                                                }
2541
2542                                                element
2543                                            }
2544                                        })),
2545                                    },
2546                                )
2547                            } else {
2548                                markdown_element.code_block_renderer(
2549                                    markdown::CodeBlockRenderer::Default {
2550                                        copy_button: false,
2551                                        copy_button_on_hover: false,
2552                                        border: true,
2553                                    },
2554                                )
2555                            };
2556
2557                            div()
2558                                .child(markdown_element.on_url_click({
2559                                    let workspace = self.workspace.clone();
2560                                    move |text, window, cx| {
2561                                        open_markdown_link(text, workspace.clone(), window, cx);
2562                                    }
2563                                }))
2564                                .into_any_element()
2565                        }
2566                    },
2567                ),
2568            )
2569    }
2570
2571    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2572        cx.theme().colors().border.opacity(0.5)
2573    }
2574
2575    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2576        cx.theme()
2577            .colors()
2578            .element_background
2579            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2580    }
2581
2582    fn render_ui_notification(
2583        &self,
2584        message_content: impl IntoIterator<Item = impl IntoElement>,
2585        ix: usize,
2586        cx: &mut Context<Self>,
2587    ) -> Stateful<Div> {
2588        let message = div()
2589            .flex_1()
2590            .min_w_0()
2591            .text_size(TextSize::XSmall.rems(cx))
2592            .text_color(cx.theme().colors().text_muted)
2593            .children(message_content);
2594
2595        div()
2596            .id(("message-container", ix))
2597            .py_1()
2598            .px_2p5()
2599            .child(Banner::new().severity(Severity::Warning).child(message))
2600    }
2601
2602    fn render_message_thinking_segment(
2603        &self,
2604        message_id: MessageId,
2605        ix: usize,
2606        markdown: Entity<Markdown>,
2607        scroll_handle: &ScrollHandle,
2608        pending: bool,
2609        window: &Window,
2610        cx: &Context<Self>,
2611    ) -> impl IntoElement {
2612        let is_open = self
2613            .expanded_thinking_segments
2614            .get(&(message_id, ix))
2615            .copied()
2616            .unwrap_or_default();
2617
2618        let editor_bg = cx.theme().colors().panel_background;
2619
2620        div().map(|this| {
2621            if pending {
2622                this.v_flex()
2623                    .mt_neg_2()
2624                    .mb_1p5()
2625                    .child(
2626                        h_flex()
2627                            .group("disclosure-header")
2628                            .justify_between()
2629                            .child(
2630                                h_flex()
2631                                    .gap_1p5()
2632                                    .child(
2633                                        Icon::new(IconName::ToolThink)
2634                                            .size(IconSize::Small)
2635                                            .color(Color::Muted),
2636                                    )
2637                                    .child(LoadingLabel::new("Thinking").size(LabelSize::Small)),
2638                            )
2639                            .child(
2640                                h_flex()
2641                                    .gap_1()
2642                                    .child(
2643                                        div().visible_on_hover("disclosure-header").child(
2644                                            Disclosure::new("thinking-disclosure", is_open)
2645                                                .opened_icon(IconName::ChevronUp)
2646                                                .closed_icon(IconName::ChevronDown)
2647                                                .on_click(cx.listener({
2648                                                    move |this, _event, _window, _cx| {
2649                                                        let is_open = this
2650                                                            .expanded_thinking_segments
2651                                                            .entry((message_id, ix))
2652                                                            .or_insert(false);
2653
2654                                                        *is_open = !*is_open;
2655                                                    }
2656                                                })),
2657                                        ),
2658                                    )
2659                                    .child({
2660                                        Icon::new(IconName::ArrowCircle)
2661                                            .color(Color::Accent)
2662                                            .size(IconSize::Small)
2663                                            .with_rotate_animation(2)
2664                                    }),
2665                            ),
2666                    )
2667                    .when(!is_open, |this| {
2668                        let gradient_overlay = div()
2669                            .rounded_b_lg()
2670                            .h_full()
2671                            .absolute()
2672                            .w_full()
2673                            .bottom_0()
2674                            .left_0()
2675                            .bg(linear_gradient(
2676                                180.,
2677                                linear_color_stop(editor_bg, 1.),
2678                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2679                            ));
2680
2681                        this.child(
2682                            div()
2683                                .relative()
2684                                .bg(editor_bg)
2685                                .rounded_b_lg()
2686                                .mt_2()
2687                                .pl_4()
2688                                .child(
2689                                    div()
2690                                        .id(("thinking-content", ix))
2691                                        .max_h_20()
2692                                        .track_scroll(scroll_handle)
2693                                        .text_ui_sm(cx)
2694                                        .overflow_hidden()
2695                                        .child(
2696                                            MarkdownElement::new(
2697                                                markdown.clone(),
2698                                                default_markdown_style(window, cx),
2699                                            )
2700                                            .on_url_click({
2701                                                let workspace = self.workspace.clone();
2702                                                move |text, window, cx| {
2703                                                    open_markdown_link(
2704                                                        text,
2705                                                        workspace.clone(),
2706                                                        window,
2707                                                        cx,
2708                                                    );
2709                                                }
2710                                            }),
2711                                        ),
2712                                )
2713                                .child(gradient_overlay),
2714                        )
2715                    })
2716                    .when(is_open, |this| {
2717                        this.child(
2718                            div()
2719                                .id(("thinking-content", ix))
2720                                .h_full()
2721                                .bg(editor_bg)
2722                                .text_ui_sm(cx)
2723                                .child(
2724                                    MarkdownElement::new(
2725                                        markdown.clone(),
2726                                        default_markdown_style(window, cx),
2727                                    )
2728                                    .on_url_click({
2729                                        let workspace = self.workspace.clone();
2730                                        move |text, window, cx| {
2731                                            open_markdown_link(text, workspace.clone(), window, cx);
2732                                        }
2733                                    }),
2734                                ),
2735                        )
2736                    })
2737            } else {
2738                this.v_flex()
2739                    .mt_neg_2()
2740                    .child(
2741                        h_flex()
2742                            .group("disclosure-header")
2743                            .pr_1()
2744                            .justify_between()
2745                            .opacity(0.8)
2746                            .hover(|style| style.opacity(1.))
2747                            .child(
2748                                h_flex()
2749                                    .gap_1p5()
2750                                    .child(
2751                                        Icon::new(IconName::ToolThink)
2752                                            .size(IconSize::XSmall)
2753                                            .color(Color::Muted),
2754                                    )
2755                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2756                            )
2757                            .child(
2758                                div().visible_on_hover("disclosure-header").child(
2759                                    Disclosure::new("thinking-disclosure", is_open)
2760                                        .opened_icon(IconName::ChevronUp)
2761                                        .closed_icon(IconName::ChevronDown)
2762                                        .on_click(cx.listener({
2763                                            move |this, _event, _window, _cx| {
2764                                                let is_open = this
2765                                                    .expanded_thinking_segments
2766                                                    .entry((message_id, ix))
2767                                                    .or_insert(false);
2768
2769                                                *is_open = !*is_open;
2770                                            }
2771                                        })),
2772                                ),
2773                            ),
2774                    )
2775                    .child(
2776                        div()
2777                            .id(("thinking-content", ix))
2778                            .relative()
2779                            .mt_1p5()
2780                            .ml_1p5()
2781                            .pl_2p5()
2782                            .border_l_1()
2783                            .border_color(cx.theme().colors().border_variant)
2784                            .text_ui_sm(cx)
2785                            .when(is_open, |this| {
2786                                this.child(
2787                                    MarkdownElement::new(
2788                                        markdown.clone(),
2789                                        default_markdown_style(window, cx),
2790                                    )
2791                                    .on_url_click({
2792                                        let workspace = self.workspace.clone();
2793                                        move |text, window, cx| {
2794                                            open_markdown_link(text, workspace.clone(), window, cx);
2795                                        }
2796                                    }),
2797                                )
2798                            }),
2799                    )
2800            }
2801        })
2802    }
2803
2804    fn render_tool_use(
2805        &self,
2806        tool_use: ToolUse,
2807        window: &mut Window,
2808        workspace: WeakEntity<Workspace>,
2809        cx: &mut Context<Self>,
2810    ) -> impl IntoElement + use<> {
2811        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2812            return card.render(&tool_use.status, window, workspace, cx);
2813        }
2814
2815        let is_open = self
2816            .expanded_tool_uses
2817            .get(&tool_use.id)
2818            .copied()
2819            .unwrap_or_default();
2820
2821        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2822
2823        let fs = self
2824            .workspace
2825            .upgrade()
2826            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2827        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2828        let needs_confirmation_tools = tool_use.needs_confirmation;
2829
2830        let status_icons = div().child(match &tool_use.status {
2831            ToolUseStatus::NeedsConfirmation => {
2832                let icon = Icon::new(IconName::Warning)
2833                    .color(Color::Warning)
2834                    .size(IconSize::Small);
2835                icon.into_any_element()
2836            }
2837            ToolUseStatus::Pending
2838            | ToolUseStatus::InputStillStreaming
2839            | ToolUseStatus::Running => Icon::new(IconName::ArrowCircle)
2840                .color(Color::Accent)
2841                .size(IconSize::Small)
2842                .with_rotate_animation(2)
2843                .into_any_element(),
2844            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2845            ToolUseStatus::Error(_) => {
2846                let icon = Icon::new(IconName::Close)
2847                    .color(Color::Error)
2848                    .size(IconSize::Small);
2849                icon.into_any_element()
2850            }
2851        });
2852
2853        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2854        let results_content_container = || v_flex().p_2().gap_0p5();
2855
2856        let results_content = v_flex()
2857            .gap_1()
2858            .child(
2859                results_content_container()
2860                    .child(
2861                        Label::new("Input")
2862                            .size(LabelSize::XSmall)
2863                            .color(Color::Muted)
2864                            .buffer_font(cx),
2865                    )
2866                    .child(
2867                        div()
2868                            .w_full()
2869                            .text_ui_sm(cx)
2870                            .children(rendered_tool_use.as_ref().map(|rendered| {
2871                                MarkdownElement::new(
2872                                    rendered.input.clone(),
2873                                    tool_use_markdown_style(window, cx),
2874                                )
2875                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2876                                    copy_button: false,
2877                                    copy_button_on_hover: false,
2878                                    border: false,
2879                                })
2880                                .on_url_click({
2881                                    let workspace = self.workspace.clone();
2882                                    move |text, window, cx| {
2883                                        open_markdown_link(text, workspace.clone(), window, cx);
2884                                    }
2885                                })
2886                            })),
2887                    ),
2888            )
2889            .map(|container| match tool_use.status {
2890                ToolUseStatus::Finished(_) => container.child(
2891                    results_content_container()
2892                        .border_t_1()
2893                        .border_color(self.tool_card_border_color(cx))
2894                        .child(
2895                            Label::new("Result")
2896                                .size(LabelSize::XSmall)
2897                                .color(Color::Muted)
2898                                .buffer_font(cx),
2899                        )
2900                        .child(div().w_full().text_ui_sm(cx).children(
2901                            rendered_tool_use.as_ref().map(|rendered| {
2902                                MarkdownElement::new(
2903                                    rendered.output.clone(),
2904                                    tool_use_markdown_style(window, cx),
2905                                )
2906                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2907                                    copy_button: false,
2908                                    copy_button_on_hover: false,
2909                                    border: false,
2910                                })
2911                                .on_url_click({
2912                                    let workspace = self.workspace.clone();
2913                                    move |text, window, cx| {
2914                                        open_markdown_link(text, workspace.clone(), window, cx);
2915                                    }
2916                                })
2917                                .into_any_element()
2918                            }),
2919                        )),
2920                ),
2921                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2922                    results_content_container()
2923                        .border_t_1()
2924                        .border_color(self.tool_card_border_color(cx))
2925                        .child(
2926                            h_flex()
2927                                .gap_1()
2928                                .child(
2929                                    Icon::new(IconName::ArrowCircle)
2930                                        .size(IconSize::Small)
2931                                        .color(Color::Accent)
2932                                        .with_rotate_animation(2),
2933                                )
2934                                .child(
2935                                    Label::new("Running…")
2936                                        .size(LabelSize::XSmall)
2937                                        .color(Color::Muted)
2938                                        .buffer_font(cx),
2939                                ),
2940                        ),
2941                ),
2942                ToolUseStatus::Error(_) => container.child(
2943                    results_content_container()
2944                        .border_t_1()
2945                        .border_color(self.tool_card_border_color(cx))
2946                        .child(
2947                            Label::new("Error")
2948                                .size(LabelSize::XSmall)
2949                                .color(Color::Muted)
2950                                .buffer_font(cx),
2951                        )
2952                        .child(
2953                            div()
2954                                .text_ui_sm(cx)
2955                                .children(rendered_tool_use.as_ref().map(|rendered| {
2956                                    MarkdownElement::new(
2957                                        rendered.output.clone(),
2958                                        tool_use_markdown_style(window, cx),
2959                                    )
2960                                    .on_url_click({
2961                                        let workspace = self.workspace.clone();
2962                                        move |text, window, cx| {
2963                                            open_markdown_link(text, workspace.clone(), window, cx);
2964                                        }
2965                                    })
2966                                    .into_any_element()
2967                                })),
2968                        ),
2969                ),
2970                ToolUseStatus::Pending => container,
2971                ToolUseStatus::NeedsConfirmation => container.child(
2972                    results_content_container()
2973                        .border_t_1()
2974                        .border_color(self.tool_card_border_color(cx))
2975                        .child(
2976                            Label::new("Asking Permission")
2977                                .size(LabelSize::Small)
2978                                .color(Color::Muted)
2979                                .buffer_font(cx),
2980                        ),
2981                ),
2982            });
2983
2984        let gradient_overlay = |color: Hsla| {
2985            div()
2986                .h_full()
2987                .absolute()
2988                .w_12()
2989                .bottom_0()
2990                .map(|element| {
2991                    if is_status_finished {
2992                        element.right_6()
2993                    } else {
2994                        element.right(px(44.))
2995                    }
2996                })
2997                .bg(linear_gradient(
2998                    90.,
2999                    linear_color_stop(color, 1.),
3000                    linear_color_stop(color.opacity(0.2), 0.),
3001                ))
3002        };
3003
3004        v_flex().gap_1().mb_2().map(|element| {
3005            if !needs_confirmation_tools {
3006                element.child(
3007                    v_flex()
3008                        .child(
3009                            h_flex()
3010                                .group("disclosure-header")
3011                                .relative()
3012                                .gap_1p5()
3013                                .justify_between()
3014                                .opacity(0.8)
3015                                .hover(|style| style.opacity(1.))
3016                                .when(!is_status_finished, |this| this.pr_2())
3017                                .child(
3018                                    h_flex()
3019                                        .id("tool-label-container")
3020                                        .gap_1p5()
3021                                        .max_w_full()
3022                                        .overflow_x_scroll()
3023                                        .child(
3024                                            Icon::new(tool_use.icon)
3025                                                .size(IconSize::Small)
3026                                                .color(Color::Muted),
3027                                        )
3028                                        .child(
3029                                            h_flex().pr_8().text_size(rems(0.8125)).children(
3030                                                rendered_tool_use.map(|rendered| MarkdownElement::new(rendered.label, tool_use_markdown_style(window, cx)).on_url_click({let workspace = self.workspace.clone(); move |text, window, cx| {
3031                                                    open_markdown_link(text, workspace.clone(), window, cx);
3032                                                }}))
3033                                            ),
3034                                        ),
3035                                )
3036                                .child(
3037                                    h_flex()
3038                                        .gap_1()
3039                                        .child(
3040                                            div().visible_on_hover("disclosure-header").child(
3041                                                Disclosure::new("tool-use-disclosure", is_open)
3042                                                    .opened_icon(IconName::ChevronUp)
3043                                                    .closed_icon(IconName::ChevronDown)
3044                                                    .on_click(cx.listener({
3045                                                        let tool_use_id = tool_use.id.clone();
3046                                                        move |this, _event, _window, _cx| {
3047                                                            let is_open = this
3048                                                                .expanded_tool_uses
3049                                                                .entry(tool_use_id.clone())
3050                                                                .or_insert(false);
3051
3052                                                            *is_open = !*is_open;
3053                                                        }
3054                                                    })),
3055                                            ),
3056                                        )
3057                                        .child(status_icons),
3058                                )
3059                                .child(gradient_overlay(cx.theme().colors().panel_background)),
3060                        )
3061                        .map(|parent| {
3062                            if !is_open {
3063                                return parent;
3064                            }
3065
3066                            parent.child(
3067                                v_flex()
3068                                    .mt_1()
3069                                    .border_1()
3070                                    .border_color(self.tool_card_border_color(cx))
3071                                    .bg(cx.theme().colors().editor_background)
3072                                    .rounded_lg()
3073                                    .child(results_content),
3074                            )
3075                        }),
3076                )
3077            } else {
3078                v_flex()
3079                    .mb_2()
3080                    .rounded_lg()
3081                    .border_1()
3082                    .border_color(self.tool_card_border_color(cx))
3083                    .overflow_hidden()
3084                    .child(
3085                        h_flex()
3086                            .group("disclosure-header")
3087                            .relative()
3088                            .justify_between()
3089                            .py_1()
3090                            .map(|element| {
3091                                if is_status_finished {
3092                                    element.pl_2().pr_0p5()
3093                                } else {
3094                                    element.px_2()
3095                                }
3096                            })
3097                            .bg(self.tool_card_header_bg(cx))
3098                            .map(|element| {
3099                                if is_open {
3100                                    element.border_b_1().rounded_t_md()
3101                                } else if needs_confirmation {
3102                                    element.rounded_t_md()
3103                                } else {
3104                                    element.rounded_md()
3105                                }
3106                            })
3107                            .border_color(self.tool_card_border_color(cx))
3108                            .child(
3109                                h_flex()
3110                                    .id("tool-label-container")
3111                                    .gap_1p5()
3112                                    .max_w_full()
3113                                    .overflow_x_scroll()
3114                                    .child(
3115                                        Icon::new(tool_use.icon)
3116                                            .size(IconSize::XSmall)
3117                                            .color(Color::Muted),
3118                                    )
3119                                    .child(
3120                                        h_flex().pr_8().text_ui_sm(cx).children(
3121                                            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| {
3122                                                open_markdown_link(text, workspace.clone(), window, cx);
3123                                            }}))
3124                                        ),
3125                                    ),
3126                            )
3127                            .child(
3128                                h_flex()
3129                                    .gap_1()
3130                                    .child(
3131                                        div().visible_on_hover("disclosure-header").child(
3132                                            Disclosure::new("tool-use-disclosure", is_open)
3133                                                .opened_icon(IconName::ChevronUp)
3134                                                .closed_icon(IconName::ChevronDown)
3135                                                .on_click(cx.listener({
3136                                                    let tool_use_id = tool_use.id.clone();
3137                                                    move |this, _event, _window, _cx| {
3138                                                        let is_open = this
3139                                                            .expanded_tool_uses
3140                                                            .entry(tool_use_id.clone())
3141                                                            .or_insert(false);
3142
3143                                                        *is_open = !*is_open;
3144                                                    }
3145                                                })),
3146                                        ),
3147                                    )
3148                                    .child(status_icons),
3149                            )
3150                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3151                    )
3152                    .map(|parent| {
3153                        if !is_open {
3154                            return parent;
3155                        }
3156
3157                        parent.child(
3158                            v_flex()
3159                                .bg(cx.theme().colors().editor_background)
3160                                .map(|element| {
3161                                    if  needs_confirmation {
3162                                        element.rounded_none()
3163                                    } else {
3164                                        element.rounded_b_lg()
3165                                    }
3166                                })
3167                                .child(results_content),
3168                        )
3169                    })
3170                    .when(needs_confirmation, |this| {
3171                        this.child(
3172                            h_flex()
3173                                .py_1()
3174                                .pl_2()
3175                                .pr_1()
3176                                .gap_1()
3177                                .justify_between()
3178                                .flex_wrap()
3179                                .bg(cx.theme().colors().editor_background)
3180                                .border_t_1()
3181                                .border_color(self.tool_card_border_color(cx))
3182                                .rounded_b_lg()
3183                                .child(
3184                                    div()
3185                                        .min_w(rems_from_px(145.))
3186                                        .child(LoadingLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3187                                    )
3188                                )
3189                                .child(
3190                                    h_flex()
3191                                        .gap_0p5()
3192                                        .child({
3193                                            let tool_id = tool_use.id.clone();
3194                                            Button::new(
3195                                                "always-allow-tool-action",
3196                                                "Always Allow",
3197                                            )
3198                                            .label_size(LabelSize::Small)
3199                                            .icon(IconName::CheckDouble)
3200                                            .icon_position(IconPosition::Start)
3201                                            .icon_size(IconSize::Small)
3202                                            .icon_color(Color::Success)
3203                                            .tooltip(move |window, cx|  {
3204                                                Tooltip::with_meta(
3205                                                    "Never ask for permission",
3206                                                    None,
3207                                                    "Restore the original behavior in your Agent Panel settings",
3208                                                    window,
3209                                                    cx,
3210                                                )
3211                                            })
3212                                            .on_click(cx.listener(
3213                                                move |this, event, window, cx| {
3214                                                    if let Some(fs) = fs.clone() {
3215                                                        update_settings_file::<AgentSettings>(
3216                                                            fs.clone(),
3217                                                            cx,
3218                                                            |settings, _| {
3219                                                                settings.set_always_allow_tool_actions(true);
3220                                                            },
3221                                                        );
3222                                                    }
3223                                                    this.handle_allow_tool(
3224                                                        tool_id.clone(),
3225                                                        event,
3226                                                        window,
3227                                                        cx,
3228                                                    )
3229                                                },
3230                                            ))
3231                                        })
3232                                        .child({
3233                                            let tool_id = tool_use.id.clone();
3234                                            Button::new("allow-tool-action", "Allow")
3235                                                .label_size(LabelSize::Small)
3236                                                .icon(IconName::Check)
3237                                                .icon_position(IconPosition::Start)
3238                                                .icon_size(IconSize::Small)
3239                                                .icon_color(Color::Success)
3240                                                .on_click(cx.listener(
3241                                                    move |this, event, window, cx| {
3242                                                        this.handle_allow_tool(
3243                                                            tool_id.clone(),
3244                                                            event,
3245                                                            window,
3246                                                            cx,
3247                                                        )
3248                                                    },
3249                                                ))
3250                                        })
3251                                        .child({
3252                                            let tool_id = tool_use.id.clone();
3253                                            let tool_name: Arc<str> = tool_use.name.into();
3254                                            Button::new("deny-tool", "Deny")
3255                                                .label_size(LabelSize::Small)
3256                                                .icon(IconName::Close)
3257                                                .icon_position(IconPosition::Start)
3258                                                .icon_size(IconSize::Small)
3259                                                .icon_color(Color::Error)
3260                                                .on_click(cx.listener(
3261                                                    move |this, event, window, cx| {
3262                                                        this.handle_deny_tool(
3263                                                            tool_id.clone(),
3264                                                            tool_name.clone(),
3265                                                            event,
3266                                                            window,
3267                                                            cx,
3268                                                        )
3269                                                    },
3270                                                ))
3271                                        }),
3272                                ),
3273                        )
3274                    })
3275            }
3276        }).into_any_element()
3277    }
3278
3279    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3280        let project_context = self.thread.read(cx).project_context();
3281        let project_context = project_context.borrow();
3282        let Some(project_context) = project_context.as_ref() else {
3283            return div().into_any();
3284        };
3285
3286        let user_rules_text = if project_context.user_rules.is_empty() {
3287            None
3288        } else if project_context.user_rules.len() == 1 {
3289            let user_rules = &project_context.user_rules[0];
3290
3291            match user_rules.title.as_ref() {
3292                Some(title) => Some(format!("Using \"{title}\" user rule")),
3293                None => Some("Using user rule".into()),
3294            }
3295        } else {
3296            Some(format!(
3297                "Using {} user rules",
3298                project_context.user_rules.len()
3299            ))
3300        };
3301
3302        let first_user_rules_id = project_context
3303            .user_rules
3304            .first()
3305            .map(|user_rules| user_rules.uuid.0);
3306
3307        let rules_files = project_context
3308            .worktrees
3309            .iter()
3310            .filter_map(|worktree| worktree.rules_file.as_ref())
3311            .collect::<Vec<_>>();
3312
3313        let rules_file_text = match rules_files.as_slice() {
3314            &[] => None,
3315            &[rules_file] => Some(format!(
3316                "Using project {:?} file",
3317                rules_file.path_in_worktree
3318            )),
3319            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3320        };
3321
3322        if user_rules_text.is_none() && rules_file_text.is_none() {
3323            return div().into_any();
3324        }
3325
3326        v_flex()
3327            .pt_2()
3328            .px_2p5()
3329            .gap_1()
3330            .when_some(user_rules_text, |parent, user_rules_text| {
3331                parent.child(
3332                    h_flex()
3333                        .w_full()
3334                        .child(
3335                            Icon::new(RULES_ICON)
3336                                .size(IconSize::XSmall)
3337                                .color(Color::Disabled),
3338                        )
3339                        .child(
3340                            Label::new(user_rules_text)
3341                                .size(LabelSize::XSmall)
3342                                .color(Color::Muted)
3343                                .truncate()
3344                                .buffer_font(cx)
3345                                .ml_1p5()
3346                                .mr_0p5(),
3347                        )
3348                        .child(
3349                            IconButton::new("open-prompt-library", IconName::ArrowUpRight)
3350                                .shape(ui::IconButtonShape::Square)
3351                                .icon_size(IconSize::XSmall)
3352                                .icon_color(Color::Ignored)
3353                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3354                                .tooltip(Tooltip::text("View User Rules"))
3355                                .on_click(move |_event, window, cx| {
3356                                    window.dispatch_action(
3357                                        Box::new(OpenRulesLibrary {
3358                                            prompt_to_select: first_user_rules_id,
3359                                        }),
3360                                        cx,
3361                                    )
3362                                }),
3363                        ),
3364                )
3365            })
3366            .when_some(rules_file_text, |parent, rules_file_text| {
3367                parent.child(
3368                    h_flex()
3369                        .w_full()
3370                        .child(
3371                            Icon::new(IconName::File)
3372                                .size(IconSize::XSmall)
3373                                .color(Color::Disabled),
3374                        )
3375                        .child(
3376                            Label::new(rules_file_text)
3377                                .size(LabelSize::XSmall)
3378                                .color(Color::Muted)
3379                                .buffer_font(cx)
3380                                .ml_1p5()
3381                                .mr_0p5(),
3382                        )
3383                        .child(
3384                            IconButton::new("open-rule", IconName::ArrowUpRight)
3385                                .shape(ui::IconButtonShape::Square)
3386                                .icon_size(IconSize::XSmall)
3387                                .icon_color(Color::Ignored)
3388                                .on_click(cx.listener(Self::handle_open_rules))
3389                                .tooltip(Tooltip::text("View Rules")),
3390                        ),
3391                )
3392            })
3393            .into_any()
3394    }
3395
3396    fn handle_allow_tool(
3397        &mut self,
3398        tool_use_id: LanguageModelToolUseId,
3399        _: &ClickEvent,
3400        window: &mut Window,
3401        cx: &mut Context<Self>,
3402    ) {
3403        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3404            .thread
3405            .read(cx)
3406            .pending_tool(&tool_use_id)
3407            .map(|tool_use| tool_use.status.clone())
3408        {
3409            self.thread.update(cx, |thread, cx| {
3410                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3411                    thread.run_tool(
3412                        c.tool_use_id.clone(),
3413                        c.ui_text.clone(),
3414                        c.input.clone(),
3415                        c.request.clone(),
3416                        c.tool.clone(),
3417                        configured.model,
3418                        Some(window.window_handle()),
3419                        cx,
3420                    );
3421                }
3422            });
3423        }
3424    }
3425
3426    fn handle_deny_tool(
3427        &mut self,
3428        tool_use_id: LanguageModelToolUseId,
3429        tool_name: Arc<str>,
3430        _: &ClickEvent,
3431        window: &mut Window,
3432        cx: &mut Context<Self>,
3433    ) {
3434        let window_handle = window.window_handle();
3435        self.thread.update(cx, |thread, cx| {
3436            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3437        });
3438    }
3439
3440    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3441        let project_context = self.thread.read(cx).project_context();
3442        let project_context = project_context.borrow();
3443        let Some(project_context) = project_context.as_ref() else {
3444            return;
3445        };
3446
3447        let project_entry_ids = project_context
3448            .worktrees
3449            .iter()
3450            .flat_map(|worktree| worktree.rules_file.as_ref())
3451            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3452            .collect::<Vec<_>>();
3453
3454        self.workspace
3455            .update(cx, move |workspace, cx| {
3456                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3457                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3458                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3459                let project = workspace.project().read(cx);
3460                let project_paths = project_entry_ids
3461                    .into_iter()
3462                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3463                    .collect::<Vec<_>>();
3464                for project_path in project_paths {
3465                    workspace
3466                        .open_path(project_path, None, true, window, cx)
3467                        .detach_and_log_err(cx);
3468                }
3469            })
3470            .ok();
3471    }
3472
3473    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3474        for window in self.notifications.drain(..) {
3475            window
3476                .update(cx, |_, window, _| {
3477                    window.remove_window();
3478                })
3479                .ok();
3480
3481            self.notification_subscriptions.remove(&window);
3482        }
3483    }
3484
3485    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Stateful<Div> {
3486        div()
3487            .occlude()
3488            .id("active-thread-scrollbar")
3489            .on_mouse_move(cx.listener(|_, _, _, cx| {
3490                cx.notify();
3491                cx.stop_propagation()
3492            }))
3493            .on_hover(|_, _, cx| {
3494                cx.stop_propagation();
3495            })
3496            .on_any_mouse_down(|_, _, cx| {
3497                cx.stop_propagation();
3498            })
3499            .on_mouse_up(
3500                MouseButton::Left,
3501                cx.listener(|_, _, _, cx| {
3502                    cx.stop_propagation();
3503                }),
3504            )
3505            .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3506                cx.notify();
3507            }))
3508            .h_full()
3509            .absolute()
3510            .right_1()
3511            .top_1()
3512            .bottom_0()
3513            .w(px(12.))
3514            .cursor_default()
3515            .children(Scrollbar::vertical(self.scrollbar_state.clone()).map(|s| s.auto_hide(cx)))
3516    }
3517
3518    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3519        self.expanded_code_blocks
3520            .get(&(message_id, ix))
3521            .copied()
3522            .unwrap_or(true)
3523    }
3524
3525    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3526        let is_expanded = self
3527            .expanded_code_blocks
3528            .entry((message_id, ix))
3529            .or_insert(true);
3530        *is_expanded = !*is_expanded;
3531    }
3532
3533    pub fn scroll_to_top(&mut self, cx: &mut Context<Self>) {
3534        self.list_state.scroll_to(ListOffset::default());
3535        cx.notify();
3536    }
3537
3538    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3539        self.list_state.reset(self.messages.len());
3540        cx.notify();
3541    }
3542}
3543
3544pub enum ActiveThreadEvent {
3545    EditingMessageTokenCountChanged,
3546}
3547
3548impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3549
3550impl Render for ActiveThread {
3551    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3552        v_flex()
3553            .size_full()
3554            .relative()
3555            .bg(cx.theme().colors().panel_background)
3556            .child(list(self.list_state.clone(), cx.processor(Self::render_message)).flex_grow())
3557            .child(self.render_vertical_scrollbar(cx))
3558    }
3559}
3560
3561pub(crate) fn open_active_thread_as_markdown(
3562    thread: Entity<Thread>,
3563    workspace: Entity<Workspace>,
3564    window: &mut Window,
3565    cx: &mut App,
3566) -> Task<anyhow::Result<()>> {
3567    let markdown_language_task = workspace
3568        .read(cx)
3569        .app_state()
3570        .languages
3571        .language_for_name("Markdown");
3572
3573    window.spawn(cx, async move |cx| {
3574        let markdown_language = markdown_language_task.await?;
3575
3576        workspace.update_in(cx, |workspace, window, cx| {
3577            let thread = thread.read(cx);
3578            let markdown = thread.to_markdown(cx)?;
3579            let thread_summary = thread.summary().or_default().to_string();
3580
3581            let project = workspace.project().clone();
3582
3583            if !project.read(cx).is_local() {
3584                anyhow::bail!("failed to open active thread as markdown in remote project");
3585            }
3586
3587            let buffer = project.update(cx, |project, cx| {
3588                project.create_local_buffer(&markdown, Some(markdown_language), true, cx)
3589            });
3590            let buffer =
3591                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3592
3593            workspace.add_item_to_active_pane(
3594                Box::new(cx.new(|cx| {
3595                    let mut editor =
3596                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3597                    editor.set_breadcrumb_header(thread_summary);
3598                    editor
3599                })),
3600                None,
3601                true,
3602                window,
3603                cx,
3604            );
3605
3606            anyhow::Ok(())
3607        })??;
3608        anyhow::Ok(())
3609    })
3610}
3611
3612pub(crate) fn open_context(
3613    context: &AgentContextHandle,
3614    workspace: Entity<Workspace>,
3615    window: &mut Window,
3616    cx: &mut App,
3617) {
3618    match context {
3619        AgentContextHandle::File(file_context) => {
3620            if let Some(project_path) = file_context.project_path(cx) {
3621                workspace.update(cx, |workspace, cx| {
3622                    workspace
3623                        .open_path(project_path, None, true, window, cx)
3624                        .detach_and_log_err(cx);
3625                });
3626            }
3627        }
3628
3629        AgentContextHandle::Directory(directory_context) => {
3630            let entry_id = directory_context.entry_id;
3631            workspace.update(cx, |workspace, cx| {
3632                workspace.project().update(cx, |_project, cx| {
3633                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3634                })
3635            })
3636        }
3637
3638        AgentContextHandle::Symbol(symbol_context) => {
3639            let buffer = symbol_context.buffer.read(cx);
3640            if let Some(project_path) = buffer.project_path(cx) {
3641                let snapshot = buffer.snapshot();
3642                let target_position = symbol_context.range.start.to_point(&snapshot);
3643                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3644                    .detach();
3645            }
3646        }
3647
3648        AgentContextHandle::Selection(selection_context) => {
3649            let buffer = selection_context.buffer.read(cx);
3650            if let Some(project_path) = buffer.project_path(cx) {
3651                let snapshot = buffer.snapshot();
3652                let target_position = selection_context.range.start.to_point(&snapshot);
3653
3654                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3655                    .detach();
3656            }
3657        }
3658
3659        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3660            cx.open_url(&fetched_url_context.url);
3661        }
3662
3663        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3664            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3665                let thread = thread_context.thread.clone();
3666                window.defer(cx, move |window, cx| {
3667                    panel.update(cx, |panel, cx| {
3668                        panel.open_thread(thread, window, cx);
3669                    });
3670                });
3671            }
3672        }),
3673
3674        AgentContextHandle::TextThread(text_thread_context) => {
3675            workspace.update(cx, |workspace, cx| {
3676                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3677                    let context = text_thread_context.context.clone();
3678                    window.defer(cx, move |window, cx| {
3679                        panel.update(cx, |panel, cx| {
3680                            panel.open_prompt_editor(context, window, cx)
3681                        });
3682                    });
3683                }
3684            })
3685        }
3686
3687        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3688            Box::new(OpenRulesLibrary {
3689                prompt_to_select: Some(rules_context.prompt_id.0),
3690            }),
3691            cx,
3692        ),
3693
3694        AgentContextHandle::Image(_) => {}
3695    }
3696}
3697
3698pub(crate) fn attach_pasted_images_as_context(
3699    context_store: &Entity<ContextStore>,
3700    cx: &mut App,
3701) -> bool {
3702    let images = cx
3703        .read_from_clipboard()
3704        .map(|item| {
3705            item.into_entries()
3706                .filter_map(|entry| {
3707                    if let ClipboardEntry::Image(image) = entry {
3708                        Some(image)
3709                    } else {
3710                        None
3711                    }
3712                })
3713                .collect::<Vec<_>>()
3714        })
3715        .unwrap_or_default();
3716
3717    if images.is_empty() {
3718        return false;
3719    }
3720    cx.stop_propagation();
3721
3722    context_store.update(cx, |store, cx| {
3723        for image in images {
3724            store.add_image_instance(Arc::new(image), cx);
3725        }
3726    });
3727    true
3728}
3729
3730fn open_editor_at_position(
3731    project_path: project::ProjectPath,
3732    target_position: Point,
3733    workspace: &Entity<Workspace>,
3734    window: &mut Window,
3735    cx: &mut App,
3736) -> Task<()> {
3737    let open_task = workspace.update(cx, |workspace, cx| {
3738        workspace.open_path(project_path, None, true, window, cx)
3739    });
3740    window.spawn(cx, async move |cx| {
3741        if let Some(active_editor) = open_task
3742            .await
3743            .log_err()
3744            .and_then(|item| item.downcast::<Editor>())
3745        {
3746            active_editor
3747                .downgrade()
3748                .update_in(cx, |editor, window, cx| {
3749                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3750                })
3751                .log_err();
3752        }
3753    })
3754}
3755
3756#[cfg(test)]
3757mod tests {
3758    use super::*;
3759    use agent::{MessageSegment, context::ContextLoadResult, thread_store};
3760    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3761    use editor::EditorSettings;
3762    use fs::FakeFs;
3763    use gpui::{AppContext, TestAppContext, VisualTestContext};
3764    use language_model::{
3765        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3766        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3767    };
3768    use project::Project;
3769    use prompt_store::PromptBuilder;
3770    use serde_json::json;
3771    use settings::SettingsStore;
3772    use util::path;
3773    use workspace::CollaboratorId;
3774
3775    #[gpui::test]
3776    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3777        init_test_settings(cx);
3778
3779        let project = create_test_project(
3780            cx,
3781            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3782        )
3783        .await;
3784
3785        let (cx, _active_thread, workspace, thread, model) =
3786            setup_test_environment(cx, project.clone()).await;
3787
3788        // Insert user message without any context (empty context vector)
3789        thread.update(cx, |thread, cx| {
3790            thread.insert_user_message(
3791                "What is the best way to learn Rust?",
3792                ContextLoadResult::default(),
3793                None,
3794                vec![],
3795                cx,
3796            );
3797        });
3798
3799        // Stream response to user message
3800        thread.update(cx, |thread, cx| {
3801            let intent = CompletionIntent::UserPrompt;
3802            let request = thread.to_completion_request(model.clone(), intent, cx);
3803            thread.stream_completion(request, model, intent, cx.active_window(), cx)
3804        });
3805        // Follow the agent
3806        cx.update(|window, cx| {
3807            workspace.update(cx, |workspace, cx| {
3808                workspace.follow(CollaboratorId::Agent, window, cx);
3809            })
3810        });
3811        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3812
3813        // Cancel the current completion
3814        thread.update(cx, |thread, cx| {
3815            thread.cancel_last_completion(cx.active_window(), cx)
3816        });
3817
3818        cx.executor().run_until_parked();
3819
3820        // No longer following the agent
3821        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3822    }
3823
3824    #[gpui::test]
3825    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3826        init_test_settings(cx);
3827
3828        let project = create_test_project(cx, json!({})).await;
3829
3830        let (cx, active_thread, _, thread, model) =
3831            setup_test_environment(cx, project.clone()).await;
3832        cx.update(|_, cx| {
3833            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3834                registry.set_default_model(
3835                    Some(ConfiguredModel {
3836                        provider: Arc::new(FakeLanguageModelProvider::default()),
3837                        model,
3838                    }),
3839                    cx,
3840                );
3841            });
3842        });
3843
3844        let creases = vec![MessageCrease {
3845            range: 14..22,
3846            icon_path: "icon".into(),
3847            label: "foo.txt".into(),
3848            context: None,
3849        }];
3850
3851        let message = thread.update(cx, |thread, cx| {
3852            let message_id = thread.insert_user_message(
3853                "Tell me about @foo.txt",
3854                ContextLoadResult::default(),
3855                None,
3856                creases,
3857                cx,
3858            );
3859            thread.message(message_id).cloned().unwrap()
3860        });
3861
3862        active_thread.update_in(cx, |active_thread, window, cx| {
3863            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3864                active_thread.start_editing_message(
3865                    message.id,
3866                    message_text,
3867                    message.creases.as_slice(),
3868                    window,
3869                    cx,
3870                );
3871            }
3872            let editor = active_thread
3873                .editing_message
3874                .as_ref()
3875                .unwrap()
3876                .1
3877                .editor
3878                .clone();
3879            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
3880            active_thread.confirm_editing_message(&Default::default(), window, cx);
3881        });
3882        cx.run_until_parked();
3883
3884        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
3885        active_thread.update_in(cx, |active_thread, window, cx| {
3886            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3887                active_thread.start_editing_message(
3888                    message.id,
3889                    message_text,
3890                    message.creases.as_slice(),
3891                    window,
3892                    cx,
3893                );
3894            }
3895            let editor = active_thread
3896                .editing_message
3897                .as_ref()
3898                .unwrap()
3899                .1
3900                .editor
3901                .clone();
3902            let text = editor.update(cx, |editor, cx| editor.text(cx));
3903            assert_eq!(text, "modified @foo.txt");
3904        });
3905    }
3906
3907    #[gpui::test]
3908    async fn test_editing_message_cancels_previous_completion(cx: &mut TestAppContext) {
3909        init_test_settings(cx);
3910
3911        let project = create_test_project(cx, json!({})).await;
3912
3913        let (cx, active_thread, _, thread, model) =
3914            setup_test_environment(cx, project.clone()).await;
3915
3916        cx.update(|_, cx| {
3917            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3918                registry.set_default_model(
3919                    Some(ConfiguredModel {
3920                        provider: Arc::new(FakeLanguageModelProvider::default()),
3921                        model: model.clone(),
3922                    }),
3923                    cx,
3924                );
3925            });
3926        });
3927
3928        // Track thread events to verify cancellation
3929        let cancellation_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3930        let new_request_events = Arc::new(std::sync::Mutex::new(Vec::new()));
3931
3932        let _subscription = cx.update(|_, cx| {
3933            let cancellation_events = cancellation_events.clone();
3934            let new_request_events = new_request_events.clone();
3935            cx.subscribe(
3936                &thread,
3937                move |_thread, event: &ThreadEvent, _cx| match event {
3938                    ThreadEvent::CompletionCanceled => {
3939                        cancellation_events.lock().unwrap().push(());
3940                    }
3941                    ThreadEvent::NewRequest => {
3942                        new_request_events.lock().unwrap().push(());
3943                    }
3944                    _ => {}
3945                },
3946            )
3947        });
3948
3949        // Insert a user message and start streaming a response
3950        let message = thread.update(cx, |thread, cx| {
3951            let message_id = thread.insert_user_message(
3952                "Hello, how are you?",
3953                ContextLoadResult::default(),
3954                None,
3955                vec![],
3956                cx,
3957            );
3958            thread.advance_prompt_id();
3959            thread.send_to_model(
3960                model.clone(),
3961                CompletionIntent::UserPrompt,
3962                cx.active_window(),
3963                cx,
3964            );
3965            thread.message(message_id).cloned().unwrap()
3966        });
3967
3968        cx.run_until_parked();
3969
3970        // Verify that a completion is in progress
3971        assert!(cx.read(|cx| thread.read(cx).is_generating()));
3972        assert_eq!(new_request_events.lock().unwrap().len(), 1);
3973
3974        // Edit the message while the completion is still running
3975        active_thread.update_in(cx, |active_thread, window, cx| {
3976            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
3977                active_thread.start_editing_message(
3978                    message.id,
3979                    message_text,
3980                    message.creases.as_slice(),
3981                    window,
3982                    cx,
3983                );
3984            }
3985            let editor = active_thread
3986                .editing_message
3987                .as_ref()
3988                .unwrap()
3989                .1
3990                .editor
3991                .clone();
3992            editor.update(cx, |editor, cx| {
3993                editor.set_text("What is the weather like?", window, cx);
3994            });
3995            active_thread.confirm_editing_message(&Default::default(), window, cx);
3996        });
3997
3998        cx.run_until_parked();
3999
4000        // Verify that the previous completion was canceled
4001        assert_eq!(cancellation_events.lock().unwrap().len(), 1);
4002
4003        // Verify that a new request was started after cancellation
4004        assert_eq!(new_request_events.lock().unwrap().len(), 2);
4005
4006        // Verify that the edited message contains the new text
4007        let edited_message =
4008            thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
4009        match &edited_message.segments[0] {
4010            MessageSegment::Text(text) => {
4011                assert_eq!(text, "What is the weather like?");
4012            }
4013            _ => panic!("Expected text segment"),
4014        }
4015    }
4016
4017    fn init_test_settings(cx: &mut TestAppContext) {
4018        cx.update(|cx| {
4019            let settings_store = SettingsStore::test(cx);
4020            cx.set_global(settings_store);
4021            language::init(cx);
4022            Project::init_settings(cx);
4023            AgentSettings::register(cx);
4024            prompt_store::init(cx);
4025            thread_store::init(cx);
4026            workspace::init_settings(cx);
4027            language_model::init_settings(cx);
4028            ThemeSettings::register(cx);
4029            EditorSettings::register(cx);
4030            ToolRegistry::default_global(cx);
4031        });
4032    }
4033
4034    // Helper to create a test project with test files
4035    async fn create_test_project(
4036        cx: &mut TestAppContext,
4037        files: serde_json::Value,
4038    ) -> Entity<Project> {
4039        let fs = FakeFs::new(cx.executor());
4040        fs.insert_tree(path!("/test"), files).await;
4041        Project::test(fs, [path!("/test").as_ref()], cx).await
4042    }
4043
4044    async fn setup_test_environment(
4045        cx: &mut TestAppContext,
4046        project: Entity<Project>,
4047    ) -> (
4048        &mut VisualTestContext,
4049        Entity<ActiveThread>,
4050        Entity<Workspace>,
4051        Entity<Thread>,
4052        Arc<dyn LanguageModel>,
4053    ) {
4054        let (workspace, cx) =
4055            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4056
4057        let thread_store = cx
4058            .update(|_, cx| {
4059                ThreadStore::load(
4060                    project.clone(),
4061                    cx.new(|_| ToolWorkingSet::default()),
4062                    None,
4063                    Arc::new(PromptBuilder::new(None).unwrap()),
4064                    cx,
4065                )
4066            })
4067            .await
4068            .unwrap();
4069
4070        let text_thread_store = cx
4071            .update(|_, cx| {
4072                TextThreadStore::new(
4073                    project.clone(),
4074                    Arc::new(PromptBuilder::new(None).unwrap()),
4075                    Default::default(),
4076                    cx,
4077                )
4078            })
4079            .await
4080            .unwrap();
4081
4082        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
4083        let context_store =
4084            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
4085
4086        let model = FakeLanguageModel::default();
4087        let model: Arc<dyn LanguageModel> = Arc::new(model);
4088
4089        let language_registry = LanguageRegistry::new(cx.executor());
4090        let language_registry = Arc::new(language_registry);
4091
4092        let active_thread = cx.update(|window, cx| {
4093            cx.new(|cx| {
4094                ActiveThread::new(
4095                    thread.clone(),
4096                    thread_store.clone(),
4097                    text_thread_store,
4098                    context_store.clone(),
4099                    language_registry.clone(),
4100                    workspace.downgrade(),
4101                    window,
4102                    cx,
4103                )
4104            })
4105        });
4106
4107        (cx, active_thread, workspace, thread, model)
4108    }
4109}