active_thread.rs

   1use crate::context::{AgentContextHandle, RULES_ICON};
   2use crate::context_picker::{ContextPicker, MentionLink};
   3use crate::context_store::ContextStore;
   4use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   5use crate::thread::{
   6    LastRestoreCheckpoint, MessageId, MessageSegment, Thread, ThreadError, ThreadEvent,
   7    ThreadFeedback,
   8};
   9use crate::thread_store::{RulesLoadingError, TextThreadStore, ThreadStore};
  10use crate::tool_use::{PendingToolUseStatus, ToolUse};
  11use crate::ui::{
  12    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
  13};
  14use crate::{AssistantPanel, OpenActiveThreadAsMarkdown};
  15use anyhow::Context as _;
  16use assistant_settings::{AssistantSettings, NotifyWhenAgentWaiting};
  17use assistant_tool::ToolUseStatus;
  18use collections::{HashMap, HashSet};
  19use editor::actions::{MoveUp, Paste};
  20use editor::scroll::Autoscroll;
  21use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer};
  22use gpui::{
  23    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  24    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  25    ListAlignment, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  26    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  27    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  28    pulsating_between,
  29};
  30use language::{Buffer, Language, LanguageRegistry};
  31use language_model::{
  32    LanguageModelRequestMessage, LanguageModelToolUseId, MessageContent, Role, StopReason,
  33};
  34use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  35use markdown::{HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown};
  36use project::{ProjectEntryId, ProjectItem as _};
  37use rope::Point;
  38use settings::{Settings as _, SettingsStore, update_settings_file};
  39use std::ffi::OsStr;
  40use std::path::Path;
  41use std::rc::Rc;
  42use std::sync::Arc;
  43use std::time::Duration;
  44use text::ToPoint;
  45use theme::ThemeSettings;
  46use ui::utils::WithRemSize;
  47use ui::{
  48    Disclosure, IconButton, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize,
  49    Tooltip, prelude::*,
  50};
  51use util::ResultExt as _;
  52use util::markdown::MarkdownCodeBlock;
  53use workspace::Workspace;
  54use zed_actions::assistant::OpenRulesLibrary;
  55
  56pub struct ActiveThread {
  57    context_store: Entity<ContextStore>,
  58    language_registry: Arc<LanguageRegistry>,
  59    thread_store: Entity<ThreadStore>,
  60    text_thread_store: Entity<TextThreadStore>,
  61    thread: Entity<Thread>,
  62    workspace: WeakEntity<Workspace>,
  63    save_thread_task: Option<Task<()>>,
  64    messages: Vec<MessageId>,
  65    list_state: ListState,
  66    scrollbar_state: ScrollbarState,
  67    show_scrollbar: bool,
  68    hide_scrollbar_task: Option<Task<()>>,
  69    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  70    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  71    editing_message: Option<(MessageId, EditingMessageState)>,
  72    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  73    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  74    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  75    last_error: Option<ThreadError>,
  76    notifications: Vec<WindowHandle<AgentNotification>>,
  77    copied_code_block_ids: HashSet<(MessageId, usize)>,
  78    _subscriptions: Vec<Subscription>,
  79    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  80    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  81    _load_edited_message_context_task: Option<Task<()>>,
  82}
  83
  84struct RenderedMessage {
  85    language_registry: Arc<LanguageRegistry>,
  86    segments: Vec<RenderedMessageSegment>,
  87}
  88
  89#[derive(Clone)]
  90struct RenderedToolUse {
  91    label: Entity<Markdown>,
  92    input: Entity<Markdown>,
  93    output: Entity<Markdown>,
  94}
  95
  96impl RenderedMessage {
  97    fn from_segments(
  98        segments: &[MessageSegment],
  99        language_registry: Arc<LanguageRegistry>,
 100        cx: &mut App,
 101    ) -> Self {
 102        let mut this = Self {
 103            language_registry,
 104            segments: Vec::with_capacity(segments.len()),
 105        };
 106        for segment in segments {
 107            this.push_segment(segment, cx);
 108        }
 109        this
 110    }
 111
 112    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 113        if let Some(RenderedMessageSegment::Thinking {
 114            content,
 115            scroll_handle,
 116        }) = self.segments.last_mut()
 117        {
 118            content.update(cx, |markdown, cx| {
 119                markdown.append(text, cx);
 120            });
 121            scroll_handle.scroll_to_bottom();
 122        } else {
 123            self.segments.push(RenderedMessageSegment::Thinking {
 124                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 125                scroll_handle: ScrollHandle::default(),
 126            });
 127        }
 128    }
 129
 130    fn append_text(&mut self, text: &String, cx: &mut App) {
 131        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 132            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 133        } else {
 134            self.segments
 135                .push(RenderedMessageSegment::Text(parse_markdown(
 136                    SharedString::from(text),
 137                    self.language_registry.clone(),
 138                    cx,
 139                )));
 140        }
 141    }
 142
 143    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 144        match segment {
 145            MessageSegment::Thinking { text, .. } => {
 146                self.segments.push(RenderedMessageSegment::Thinking {
 147                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 148                    scroll_handle: ScrollHandle::default(),
 149                })
 150            }
 151            MessageSegment::Text(text) => {
 152                self.segments
 153                    .push(RenderedMessageSegment::Text(parse_markdown(
 154                        text.into(),
 155                        self.language_registry.clone(),
 156                        cx,
 157                    )))
 158            }
 159            MessageSegment::RedactedThinking(_) => {}
 160        };
 161    }
 162}
 163
 164enum RenderedMessageSegment {
 165    Thinking {
 166        content: Entity<Markdown>,
 167        scroll_handle: ScrollHandle,
 168    },
 169    Text(Entity<Markdown>),
 170}
 171
 172fn parse_markdown(
 173    text: SharedString,
 174    language_registry: Arc<LanguageRegistry>,
 175    cx: &mut App,
 176) -> Entity<Markdown> {
 177    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 178}
 179
 180pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 181    let theme_settings = ThemeSettings::get_global(cx);
 182    let colors = cx.theme().colors();
 183    let ui_font_size = TextSize::Default.rems(cx);
 184    let buffer_font_size = TextSize::Small.rems(cx);
 185    let mut text_style = window.text_style();
 186
 187    text_style.refine(&TextStyleRefinement {
 188        font_family: Some(theme_settings.ui_font.family.clone()),
 189        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 190        font_features: Some(theme_settings.ui_font.features.clone()),
 191        font_size: Some(ui_font_size.into()),
 192        color: Some(cx.theme().colors().text),
 193        ..Default::default()
 194    });
 195
 196    MarkdownStyle {
 197        base_text_style: text_style.clone(),
 198        syntax: cx.theme().syntax().clone(),
 199        selection_background_color: cx.theme().players().local().selection,
 200        code_block_overflow_x_scroll: true,
 201        table_overflow_x_scroll: true,
 202        heading_level_styles: Some(HeadingLevelStyles {
 203            h1: Some(TextStyleRefinement {
 204                font_size: Some(rems(1.15).into()),
 205                ..Default::default()
 206            }),
 207            h2: Some(TextStyleRefinement {
 208                font_size: Some(rems(1.1).into()),
 209                ..Default::default()
 210            }),
 211            h3: Some(TextStyleRefinement {
 212                font_size: Some(rems(1.05).into()),
 213                ..Default::default()
 214            }),
 215            h4: Some(TextStyleRefinement {
 216                font_size: Some(rems(1.).into()),
 217                ..Default::default()
 218            }),
 219            h5: Some(TextStyleRefinement {
 220                font_size: Some(rems(0.95).into()),
 221                ..Default::default()
 222            }),
 223            h6: Some(TextStyleRefinement {
 224                font_size: Some(rems(0.875).into()),
 225                ..Default::default()
 226            }),
 227        }),
 228        code_block: StyleRefinement {
 229            padding: EdgesRefinement {
 230                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 231                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 232                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 233                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 234            },
 235            background: Some(colors.editor_background.into()),
 236            text: Some(TextStyleRefinement {
 237                font_family: Some(theme_settings.buffer_font.family.clone()),
 238                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 239                font_features: Some(theme_settings.buffer_font.features.clone()),
 240                font_size: Some(buffer_font_size.into()),
 241                ..Default::default()
 242            }),
 243            ..Default::default()
 244        },
 245        inline_code: TextStyleRefinement {
 246            font_family: Some(theme_settings.buffer_font.family.clone()),
 247            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 248            font_features: Some(theme_settings.buffer_font.features.clone()),
 249            font_size: Some(buffer_font_size.into()),
 250            background_color: Some(colors.editor_foreground.opacity(0.08)),
 251            ..Default::default()
 252        },
 253        link: TextStyleRefinement {
 254            background_color: Some(colors.editor_foreground.opacity(0.025)),
 255            underline: Some(UnderlineStyle {
 256                color: Some(colors.text_accent.opacity(0.5)),
 257                thickness: px(1.),
 258                ..Default::default()
 259            }),
 260            ..Default::default()
 261        },
 262        link_callback: Some(Rc::new(move |url, cx| {
 263            if MentionLink::is_valid(url) {
 264                let colors = cx.theme().colors();
 265                Some(TextStyleRefinement {
 266                    background_color: Some(colors.element_background),
 267                    ..Default::default()
 268                })
 269            } else {
 270                None
 271            }
 272        })),
 273        ..Default::default()
 274    }
 275}
 276
 277fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 278    let theme_settings = ThemeSettings::get_global(cx);
 279    let colors = cx.theme().colors();
 280    let ui_font_size = TextSize::Default.rems(cx);
 281    let buffer_font_size = TextSize::Small.rems(cx);
 282    let mut text_style = window.text_style();
 283
 284    text_style.refine(&TextStyleRefinement {
 285        font_family: Some(theme_settings.ui_font.family.clone()),
 286        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 287        font_features: Some(theme_settings.ui_font.features.clone()),
 288        font_size: Some(ui_font_size.into()),
 289        color: Some(cx.theme().colors().text),
 290        ..Default::default()
 291    });
 292
 293    MarkdownStyle {
 294        base_text_style: text_style,
 295        syntax: cx.theme().syntax().clone(),
 296        selection_background_color: cx.theme().players().local().selection,
 297        code_block_overflow_x_scroll: true,
 298        code_block: StyleRefinement {
 299            margin: EdgesRefinement::default(),
 300            padding: EdgesRefinement::default(),
 301            background: Some(colors.editor_background.into()),
 302            border_color: None,
 303            border_widths: EdgesRefinement::default(),
 304            text: Some(TextStyleRefinement {
 305                font_family: Some(theme_settings.buffer_font.family.clone()),
 306                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 307                font_features: Some(theme_settings.buffer_font.features.clone()),
 308                font_size: Some(buffer_font_size.into()),
 309                ..Default::default()
 310            }),
 311            ..Default::default()
 312        },
 313        inline_code: TextStyleRefinement {
 314            font_family: Some(theme_settings.buffer_font.family.clone()),
 315            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 316            font_features: Some(theme_settings.buffer_font.features.clone()),
 317            font_size: Some(TextSize::XSmall.rems(cx).into()),
 318            ..Default::default()
 319        },
 320        heading: StyleRefinement {
 321            text: Some(TextStyleRefinement {
 322                font_size: Some(ui_font_size.into()),
 323                ..Default::default()
 324            }),
 325            ..Default::default()
 326        },
 327        ..Default::default()
 328    }
 329}
 330
 331const MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK: usize = 10;
 332
 333fn render_markdown_code_block(
 334    message_id: MessageId,
 335    ix: usize,
 336    kind: &CodeBlockKind,
 337    parsed_markdown: &ParsedMarkdown,
 338    metadata: CodeBlockMetadata,
 339    active_thread: Entity<ActiveThread>,
 340    workspace: WeakEntity<Workspace>,
 341    _window: &Window,
 342    cx: &App,
 343) -> Div {
 344    let label = match kind {
 345        CodeBlockKind::Indented => None,
 346        CodeBlockKind::Fenced => Some(
 347            h_flex()
 348                .gap_1()
 349                .child(
 350                    Icon::new(IconName::Code)
 351                        .color(Color::Muted)
 352                        .size(IconSize::XSmall),
 353                )
 354                .child(Label::new("untitled").size(LabelSize::Small))
 355                .into_any_element(),
 356        ),
 357        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 358            parsed_markdown.languages_by_name.get(raw_language_name),
 359            raw_language_name.clone(),
 360            cx,
 361        )),
 362        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 363            // We tell the model to use /dev/null for the path instead of using ```language
 364            // because otherwise it consistently fails to use code citations.
 365            if path_range.path.starts_with("/dev/null") {
 366                let ext = path_range
 367                    .path
 368                    .extension()
 369                    .and_then(OsStr::to_str)
 370                    .map(|str| SharedString::new(str.to_string()))
 371                    .unwrap_or_default();
 372
 373                render_code_language(
 374                    parsed_markdown
 375                        .languages_by_path
 376                        .get(&path_range.path)
 377                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 378                    ext,
 379                    cx,
 380                )
 381            } else {
 382                let content = if let Some(parent) = path_range.path.parent() {
 383                    h_flex()
 384                        .ml_1()
 385                        .gap_1()
 386                        .child(
 387                            Label::new(file_name.to_string_lossy().to_string())
 388                                .size(LabelSize::Small),
 389                        )
 390                        .child(
 391                            Label::new(parent.to_string_lossy().to_string())
 392                                .color(Color::Muted)
 393                                .size(LabelSize::Small),
 394                        )
 395                        .into_any_element()
 396                } else {
 397                    Label::new(path_range.path.to_string_lossy().to_string())
 398                        .size(LabelSize::Small)
 399                        .ml_1()
 400                        .into_any_element()
 401                };
 402
 403                h_flex()
 404                    .id(("code-block-header-label", ix))
 405                    .w_full()
 406                    .max_w_full()
 407                    .px_1()
 408                    .gap_0p5()
 409                    .cursor_pointer()
 410                    .rounded_sm()
 411                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 412                    .tooltip(Tooltip::text("Jump to File"))
 413                    .child(
 414                        h_flex()
 415                            .gap_0p5()
 416                            .children(
 417                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 418                                    .map(Icon::from_path)
 419                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 420                            )
 421                            .child(content)
 422                            .child(
 423                                Icon::new(IconName::ArrowUpRight)
 424                                    .size(IconSize::XSmall)
 425                                    .color(Color::Ignored),
 426                            ),
 427                    )
 428                    .on_click({
 429                        let path_range = path_range.clone();
 430                        move |_, window, cx| {
 431                            workspace
 432                                .update(cx, {
 433                                    |workspace, cx| {
 434                                        let Some(project_path) = workspace
 435                                            .project()
 436                                            .read(cx)
 437                                            .find_project_path(&path_range.path, cx)
 438                                        else {
 439                                            return;
 440                                        };
 441                                        let Some(target) = path_range.range.as_ref().map(|range| {
 442                                            Point::new(
 443                                                // Line number is 1-based
 444                                                range.start.line.saturating_sub(1),
 445                                                range.start.col.unwrap_or(0),
 446                                            )
 447                                        }) else {
 448                                            return;
 449                                        };
 450                                        let open_task = workspace.open_path(
 451                                            project_path,
 452                                            None,
 453                                            true,
 454                                            window,
 455                                            cx,
 456                                        );
 457                                        window
 458                                            .spawn(cx, async move |cx| {
 459                                                let item = open_task.await?;
 460                                                if let Some(active_editor) =
 461                                                    item.downcast::<Editor>()
 462                                                {
 463                                                    active_editor
 464                                                        .update_in(cx, |editor, window, cx| {
 465                                                            editor.go_to_singleton_buffer_point(
 466                                                                target, window, cx,
 467                                                            );
 468                                                        })
 469                                                        .ok();
 470                                                }
 471                                                anyhow::Ok(())
 472                                            })
 473                                            .detach_and_log_err(cx);
 474                                    }
 475                                })
 476                                .ok();
 477                        }
 478                    })
 479                    .into_any_element()
 480            }
 481        }),
 482    };
 483
 484    let codeblock_was_copied = active_thread
 485        .read(cx)
 486        .copied_code_block_ids
 487        .contains(&(message_id, ix));
 488
 489    let is_expanded = active_thread
 490        .read(cx)
 491        .expanded_code_blocks
 492        .get(&(message_id, ix))
 493        .copied()
 494        .unwrap_or(true);
 495
 496    let codeblock_header_bg = cx
 497        .theme()
 498        .colors()
 499        .element_background
 500        .blend(cx.theme().colors().editor_foreground.opacity(0.01));
 501
 502    let codeblock_header = h_flex()
 503        .py_1()
 504        .pl_1p5()
 505        .pr_1()
 506        .gap_1()
 507        .justify_between()
 508        .border_b_1()
 509        .border_color(cx.theme().colors().border.opacity(0.6))
 510        .bg(codeblock_header_bg)
 511        .rounded_t_md()
 512        .children(label)
 513        .child(
 514            h_flex()
 515                .visible_on_hover("codeblock_container")
 516                .gap_1()
 517                .child(
 518                    IconButton::new(
 519                        ("copy-markdown-code", ix),
 520                        if codeblock_was_copied {
 521                            IconName::Check
 522                        } else {
 523                            IconName::Copy
 524                        },
 525                    )
 526                    .icon_color(Color::Muted)
 527                    .shape(ui::IconButtonShape::Square)
 528                    .tooltip(Tooltip::text("Copy Code"))
 529                    .on_click({
 530                        let active_thread = active_thread.clone();
 531                        let parsed_markdown = parsed_markdown.clone();
 532                        let code_block_range = metadata.content_range.clone();
 533                        move |_event, _window, cx| {
 534                            active_thread.update(cx, |this, cx| {
 535                                this.copied_code_block_ids.insert((message_id, ix));
 536
 537                                let code =
 538                                    parsed_markdown.source()[code_block_range.clone()].to_string();
 539                                cx.write_to_clipboard(ClipboardItem::new_string(code));
 540
 541                                cx.spawn(async move |this, cx| {
 542                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 543
 544                                    cx.update(|cx| {
 545                                        this.update(cx, |this, cx| {
 546                                            this.copied_code_block_ids.remove(&(message_id, ix));
 547                                            cx.notify();
 548                                        })
 549                                    })
 550                                    .ok();
 551                                })
 552                                .detach();
 553                            });
 554                        }
 555                    }),
 556                )
 557                .when(
 558                    metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 559                    |header| {
 560                        header.child(
 561                            IconButton::new(
 562                                ("expand-collapse-code", ix),
 563                                if is_expanded {
 564                                    IconName::ChevronUp
 565                                } else {
 566                                    IconName::ChevronDown
 567                                },
 568                            )
 569                            .icon_color(Color::Muted)
 570                            .shape(ui::IconButtonShape::Square)
 571                            .tooltip(Tooltip::text(if is_expanded {
 572                                "Collapse Code"
 573                            } else {
 574                                "Expand Code"
 575                            }))
 576                            .on_click({
 577                                let active_thread = active_thread.clone();
 578                                move |_event, _window, cx| {
 579                                    active_thread.update(cx, |this, cx| {
 580                                        let is_expanded = this
 581                                            .expanded_code_blocks
 582                                            .entry((message_id, ix))
 583                                            .or_insert(true);
 584                                        *is_expanded = !*is_expanded;
 585                                        cx.notify();
 586                                    });
 587                                }
 588                            }),
 589                        )
 590                    },
 591                ),
 592        );
 593
 594    v_flex()
 595        .group("codeblock_container")
 596        .my_2()
 597        .overflow_hidden()
 598        .rounded_lg()
 599        .border_1()
 600        .border_color(cx.theme().colors().border.opacity(0.6))
 601        .bg(cx.theme().colors().editor_background)
 602        .child(codeblock_header)
 603        .when(
 604            metadata.line_count > MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK,
 605            |this| {
 606                if is_expanded {
 607                    this.h_full()
 608                } else {
 609                    this.max_h_80()
 610                }
 611            },
 612        )
 613}
 614
 615fn render_code_language(
 616    language: Option<&Arc<Language>>,
 617    name_fallback: SharedString,
 618    cx: &App,
 619) -> AnyElement {
 620    let icon_path = language.and_then(|language| {
 621        language
 622            .config()
 623            .matcher
 624            .path_suffixes
 625            .iter()
 626            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 627            .map(Icon::from_path)
 628    });
 629
 630    let language_label = language
 631        .map(|language| language.name().into())
 632        .unwrap_or(name_fallback);
 633
 634    h_flex()
 635        .gap_1()
 636        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::Small)))
 637        .child(Label::new(language_label).size(LabelSize::Small))
 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(Some(Autoscroll::center()), window, cx, |s| {
 688                            s.select_anchor_ranges([symbol_range.start..symbol_range.start])
 689                        });
 690                        anyhow::Ok(())
 691                    })
 692                })
 693                .detach_and_log_err(cx);
 694        }
 695        Some(MentionLink::Selection(path, line_range)) => {
 696            let open_task = workspace.update(cx, |workspace, cx| {
 697                workspace.open_path(path, None, true, window, cx)
 698            });
 699            window
 700                .spawn(cx, async move |cx| {
 701                    let active_editor = open_task
 702                        .await?
 703                        .downcast::<Editor>()
 704                        .context("Item is not an editor")?;
 705                    active_editor.update_in(cx, |editor, window, cx| {
 706                        editor.change_selections(Some(Autoscroll::center()), window, cx, |s| {
 707                            s.select_ranges([Point::new(line_range.start as u32, 0)
 708                                ..Point::new(line_range.start as u32, 0)])
 709                        });
 710                        anyhow::Ok(())
 711                    })
 712                })
 713                .detach_and_log_err(cx);
 714        }
 715        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 716            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 717                panel.update(cx, |panel, cx| {
 718                    panel
 719                        .open_thread_by_id(&thread_id, window, cx)
 720                        .detach_and_log_err(cx)
 721                });
 722            }
 723        }),
 724        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 725            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
 726                panel.update(cx, |panel, cx| {
 727                    panel
 728                        .open_saved_prompt_editor(path, window, cx)
 729                        .detach_and_log_err(cx);
 730                });
 731            }
 732        }),
 733        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 734        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 735            Box::new(OpenRulesLibrary {
 736                prompt_to_select: Some(prompt_id.0),
 737            }),
 738            cx,
 739        ),
 740        None => cx.open_url(&text),
 741    }
 742}
 743
 744struct EditingMessageState {
 745    editor: Entity<Editor>,
 746    context_strip: Entity<ContextStrip>,
 747    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 748    last_estimated_token_count: Option<usize>,
 749    _subscriptions: [Subscription; 2],
 750    _update_token_count_task: Option<Task<()>>,
 751}
 752
 753impl ActiveThread {
 754    pub fn new(
 755        thread: Entity<Thread>,
 756        thread_store: Entity<ThreadStore>,
 757        text_thread_store: Entity<TextThreadStore>,
 758        context_store: Entity<ContextStore>,
 759        language_registry: Arc<LanguageRegistry>,
 760        workspace: WeakEntity<Workspace>,
 761        window: &mut Window,
 762        cx: &mut Context<Self>,
 763    ) -> Self {
 764        let subscriptions = vec![
 765            cx.observe(&thread, |_, _, cx| cx.notify()),
 766            cx.subscribe_in(&thread, window, Self::handle_thread_event),
 767            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 768            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 769        ];
 770
 771        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 772            let this = cx.entity().downgrade();
 773            move |ix, window: &mut Window, cx: &mut App| {
 774                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 775                    .unwrap()
 776            }
 777        });
 778        let mut this = Self {
 779            language_registry,
 780            thread_store,
 781            text_thread_store,
 782            context_store,
 783            thread: thread.clone(),
 784            workspace,
 785            save_thread_task: None,
 786            messages: Vec::new(),
 787            rendered_messages_by_id: HashMap::default(),
 788            rendered_tool_uses: HashMap::default(),
 789            expanded_tool_uses: HashMap::default(),
 790            expanded_thinking_segments: HashMap::default(),
 791            expanded_code_blocks: HashMap::default(),
 792            list_state: list_state.clone(),
 793            scrollbar_state: ScrollbarState::new(list_state),
 794            show_scrollbar: false,
 795            hide_scrollbar_task: None,
 796            editing_message: None,
 797            last_error: None,
 798            copied_code_block_ids: HashSet::default(),
 799            notifications: Vec::new(),
 800            _subscriptions: subscriptions,
 801            notification_subscriptions: HashMap::default(),
 802            open_feedback_editors: HashMap::default(),
 803            _load_edited_message_context_task: None,
 804        };
 805
 806        for message in thread.read(cx).messages().cloned().collect::<Vec<_>>() {
 807            this.push_message(&message.id, &message.segments, window, cx);
 808
 809            for tool_use in thread.read(cx).tool_uses_for_message(message.id, cx) {
 810                this.render_tool_use_markdown(
 811                    tool_use.id.clone(),
 812                    tool_use.ui_text.clone(),
 813                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 814                    tool_use.status.text(),
 815                    cx,
 816                );
 817            }
 818        }
 819
 820        this
 821    }
 822
 823    pub fn thread(&self) -> &Entity<Thread> {
 824        &self.thread
 825    }
 826
 827    pub fn is_empty(&self) -> bool {
 828        self.messages.is_empty()
 829    }
 830
 831    pub fn summary(&self, cx: &App) -> Option<SharedString> {
 832        self.thread.read(cx).summary()
 833    }
 834
 835    pub fn summary_or_default(&self, cx: &App) -> SharedString {
 836        self.thread.read(cx).summary_or_default()
 837    }
 838
 839    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 840        self.last_error.take();
 841        self.thread.update(cx, |thread, cx| {
 842            thread.cancel_last_completion(Some(window.window_handle()), cx)
 843        })
 844    }
 845
 846    pub fn last_error(&self) -> Option<ThreadError> {
 847        self.last_error.clone()
 848    }
 849
 850    pub fn clear_last_error(&mut self) {
 851        self.last_error.take();
 852    }
 853
 854    /// Returns the editing message id and the estimated token count in the content
 855    pub fn editing_message_id(&self) -> Option<(MessageId, usize)> {
 856        self.editing_message
 857            .as_ref()
 858            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 859    }
 860
 861    pub fn context_store(&self) -> &Entity<ContextStore> {
 862        &self.context_store
 863    }
 864
 865    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 866        &self.thread_store
 867    }
 868
 869    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 870        &self.text_thread_store
 871    }
 872
 873    fn push_message(
 874        &mut self,
 875        id: &MessageId,
 876        segments: &[MessageSegment],
 877        _window: &mut Window,
 878        cx: &mut Context<Self>,
 879    ) {
 880        let old_len = self.messages.len();
 881        self.messages.push(*id);
 882        self.list_state.splice(old_len..old_len, 1);
 883
 884        let rendered_message =
 885            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 886        self.rendered_messages_by_id.insert(*id, rendered_message);
 887    }
 888
 889    fn edited_message(
 890        &mut self,
 891        id: &MessageId,
 892        segments: &[MessageSegment],
 893        _window: &mut Window,
 894        cx: &mut Context<Self>,
 895    ) {
 896        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 897            return;
 898        };
 899        self.list_state.splice(index..index + 1, 1);
 900        let rendered_message =
 901            RenderedMessage::from_segments(segments, self.language_registry.clone(), cx);
 902        self.rendered_messages_by_id.insert(*id, rendered_message);
 903    }
 904
 905    fn deleted_message(&mut self, id: &MessageId) {
 906        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 907            return;
 908        };
 909        self.messages.remove(index);
 910        self.list_state.splice(index..index + 1, 0);
 911        self.rendered_messages_by_id.remove(id);
 912    }
 913
 914    fn render_tool_use_markdown(
 915        &mut self,
 916        tool_use_id: LanguageModelToolUseId,
 917        tool_label: impl Into<SharedString>,
 918        tool_input: &str,
 919        tool_output: SharedString,
 920        cx: &mut Context<Self>,
 921    ) {
 922        let rendered = self
 923            .rendered_tool_uses
 924            .entry(tool_use_id.clone())
 925            .or_insert_with(|| RenderedToolUse {
 926                label: cx.new(|cx| {
 927                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 928                }),
 929                input: cx.new(|cx| {
 930                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 931                }),
 932                output: cx.new(|cx| {
 933                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 934                }),
 935            });
 936
 937        rendered.label.update(cx, |this, cx| {
 938            this.replace(tool_label, cx);
 939        });
 940        rendered.input.update(cx, |this, cx| {
 941            this.replace(
 942                MarkdownCodeBlock {
 943                    tag: "json",
 944                    text: tool_input,
 945                }
 946                .to_string(),
 947                cx,
 948            );
 949        });
 950        rendered.output.update(cx, |this, cx| {
 951            this.replace(tool_output, cx);
 952        });
 953    }
 954
 955    fn handle_thread_event(
 956        &mut self,
 957        _thread: &Entity<Thread>,
 958        event: &ThreadEvent,
 959        window: &mut Window,
 960        cx: &mut Context<Self>,
 961    ) {
 962        match event {
 963            ThreadEvent::CancelEditing => {
 964                if self.editing_message.is_some() {
 965                    self.cancel_editing_message(&menu::Cancel, window, cx);
 966                }
 967            }
 968            ThreadEvent::ShowError(error) => {
 969                self.last_error = Some(error.clone());
 970            }
 971            ThreadEvent::NewRequest | ThreadEvent::CompletionCanceled => {
 972                cx.notify();
 973            }
 974            ThreadEvent::StreamedCompletion
 975            | ThreadEvent::SummaryGenerated
 976            | ThreadEvent::SummaryChanged => {
 977                self.save_thread(cx);
 978            }
 979            ThreadEvent::Stopped(reason) => match reason {
 980                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
 981                    let thread = self.thread.read(cx);
 982                    self.show_notification(
 983                        if thread.used_tools_since_last_user_message() {
 984                            "Finished running tools"
 985                        } else {
 986                            "New message"
 987                        },
 988                        IconName::ZedAssistant,
 989                        window,
 990                        cx,
 991                    );
 992                }
 993                _ => {}
 994            },
 995            ThreadEvent::ToolConfirmationNeeded => {
 996                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
 997            }
 998            ThreadEvent::StreamedAssistantText(message_id, text) => {
 999                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1000                    rendered_message.append_text(text, cx);
1001                }
1002            }
1003            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1004                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1005                    rendered_message.append_thinking(text, cx);
1006                }
1007            }
1008            ThreadEvent::MessageAdded(message_id) => {
1009                if let Some(message_segments) = self
1010                    .thread
1011                    .read(cx)
1012                    .message(*message_id)
1013                    .map(|message| message.segments.clone())
1014                {
1015                    self.push_message(message_id, &message_segments, window, cx);
1016                }
1017
1018                self.save_thread(cx);
1019                cx.notify();
1020            }
1021            ThreadEvent::MessageEdited(message_id) => {
1022                if let Some(message_segments) = self
1023                    .thread
1024                    .read(cx)
1025                    .message(*message_id)
1026                    .map(|message| message.segments.clone())
1027                {
1028                    self.edited_message(message_id, &message_segments, window, cx);
1029                }
1030
1031                self.save_thread(cx);
1032                cx.notify();
1033            }
1034            ThreadEvent::MessageDeleted(message_id) => {
1035                self.deleted_message(message_id);
1036                self.save_thread(cx);
1037                cx.notify();
1038            }
1039            ThreadEvent::UsePendingTools { tool_uses } => {
1040                for tool_use in tool_uses {
1041                    self.render_tool_use_markdown(
1042                        tool_use.id.clone(),
1043                        tool_use.ui_text.clone(),
1044                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1045                        "".into(),
1046                        cx,
1047                    );
1048                }
1049            }
1050            ThreadEvent::StreamedToolUse {
1051                tool_use_id,
1052                ui_text,
1053                input,
1054            } => {
1055                self.render_tool_use_markdown(
1056                    tool_use_id.clone(),
1057                    ui_text.clone(),
1058                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1059                    "".into(),
1060                    cx,
1061                );
1062            }
1063            ThreadEvent::ToolFinished {
1064                pending_tool_use, ..
1065            } => {
1066                if let Some(tool_use) = pending_tool_use {
1067                    self.render_tool_use_markdown(
1068                        tool_use.id.clone(),
1069                        tool_use.ui_text.clone(),
1070                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1071                        self.thread
1072                            .read(cx)
1073                            .output_for_tool(&tool_use.id)
1074                            .map(|output| output.clone().into())
1075                            .unwrap_or("".into()),
1076                        cx,
1077                    );
1078                }
1079            }
1080            ThreadEvent::CheckpointChanged => cx.notify(),
1081            ThreadEvent::ReceivedTextChunk => {}
1082            ThreadEvent::InvalidToolInput {
1083                tool_use_id,
1084                ui_text,
1085                invalid_input_json,
1086            } => {
1087                self.render_tool_use_markdown(
1088                    tool_use_id.clone(),
1089                    ui_text,
1090                    invalid_input_json,
1091                    self.thread
1092                        .read(cx)
1093                        .output_for_tool(tool_use_id)
1094                        .map(|output| output.clone().into())
1095                        .unwrap_or("".into()),
1096                    cx,
1097                );
1098            }
1099            ThreadEvent::MissingToolUse {
1100                tool_use_id,
1101                ui_text,
1102            } => {
1103                self.render_tool_use_markdown(
1104                    tool_use_id.clone(),
1105                    ui_text,
1106                    "",
1107                    self.thread
1108                        .read(cx)
1109                        .output_for_tool(tool_use_id)
1110                        .map(|output| output.clone().into())
1111                        .unwrap_or("".into()),
1112                    cx,
1113                );
1114            }
1115        }
1116    }
1117
1118    fn handle_rules_loading_error(
1119        &mut self,
1120        _thread_store: Entity<ThreadStore>,
1121        error: &RulesLoadingError,
1122        cx: &mut Context<Self>,
1123    ) {
1124        self.last_error = Some(ThreadError::Message {
1125            header: "Error loading rules file".into(),
1126            message: error.message.clone(),
1127        });
1128        cx.notify();
1129    }
1130
1131    fn show_notification(
1132        &mut self,
1133        caption: impl Into<SharedString>,
1134        icon: IconName,
1135        window: &mut Window,
1136        cx: &mut Context<ActiveThread>,
1137    ) {
1138        if window.is_window_active() || !self.notifications.is_empty() {
1139            return;
1140        }
1141
1142        let title = self
1143            .thread
1144            .read(cx)
1145            .summary()
1146            .unwrap_or("Agent Panel".into());
1147
1148        match AssistantSettings::get_global(cx).notify_when_agent_waiting {
1149            NotifyWhenAgentWaiting::PrimaryScreen => {
1150                if let Some(primary) = cx.primary_display() {
1151                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1152                }
1153            }
1154            NotifyWhenAgentWaiting::AllScreens => {
1155                let caption = caption.into();
1156                for screen in cx.displays() {
1157                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1158                }
1159            }
1160            NotifyWhenAgentWaiting::Never => {
1161                // Don't show anything
1162            }
1163        }
1164    }
1165
1166    fn pop_up(
1167        &mut self,
1168        icon: IconName,
1169        caption: SharedString,
1170        title: SharedString,
1171        window: &mut Window,
1172        screen: Rc<dyn PlatformDisplay>,
1173        cx: &mut Context<'_, ActiveThread>,
1174    ) {
1175        let options = AgentNotification::window_options(screen, cx);
1176
1177        let project_name = self.workspace.upgrade().and_then(|workspace| {
1178            workspace
1179                .read(cx)
1180                .project()
1181                .read(cx)
1182                .visible_worktrees(cx)
1183                .next()
1184                .map(|worktree| worktree.read(cx).root_name().to_string())
1185        });
1186
1187        if let Some(screen_window) = cx
1188            .open_window(options, |_, cx| {
1189                cx.new(|_| {
1190                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1191                })
1192            })
1193            .log_err()
1194        {
1195            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1196                self.notification_subscriptions
1197                    .entry(screen_window)
1198                    .or_insert_with(Vec::new)
1199                    .push(cx.subscribe_in(&pop_up, window, {
1200                        |this, _, event, window, cx| match event {
1201                            AgentNotificationEvent::Accepted => {
1202                                let handle = window.window_handle();
1203                                cx.activate(true);
1204
1205                                let workspace_handle = this.workspace.clone();
1206
1207                                // If there are multiple Zed windows, activate the correct one.
1208                                cx.defer(move |cx| {
1209                                    handle
1210                                        .update(cx, |_view, window, _cx| {
1211                                            window.activate_window();
1212
1213                                            if let Some(workspace) = workspace_handle.upgrade() {
1214                                                workspace.update(_cx, |workspace, cx| {
1215                                                    workspace
1216                                                        .focus_panel::<AssistantPanel>(window, cx);
1217                                                });
1218                                            }
1219                                        })
1220                                        .log_err();
1221                                });
1222
1223                                this.dismiss_notifications(cx);
1224                            }
1225                            AgentNotificationEvent::Dismissed => {
1226                                this.dismiss_notifications(cx);
1227                            }
1228                        }
1229                    }));
1230
1231                self.notifications.push(screen_window);
1232
1233                // If the user manually refocuses the original window, dismiss the popup.
1234                self.notification_subscriptions
1235                    .entry(screen_window)
1236                    .or_insert_with(Vec::new)
1237                    .push({
1238                        let pop_up_weak = pop_up.downgrade();
1239
1240                        cx.observe_window_activation(window, move |_, window, cx| {
1241                            if window.is_window_active() {
1242                                if let Some(pop_up) = pop_up_weak.upgrade() {
1243                                    pop_up.update(cx, |_, cx| {
1244                                        cx.emit(AgentNotificationEvent::Dismissed);
1245                                    });
1246                                }
1247                            }
1248                        })
1249                    });
1250            }
1251        }
1252    }
1253
1254    /// Spawns a task to save the active thread.
1255    ///
1256    /// Only one task to save the thread will be in flight at a time.
1257    fn save_thread(&mut self, cx: &mut Context<Self>) {
1258        let thread = self.thread.clone();
1259        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1260            let task = this
1261                .update(cx, |this, cx| {
1262                    this.thread_store
1263                        .update(cx, |thread_store, cx| thread_store.save_thread(&thread, cx))
1264                })
1265                .ok();
1266
1267            if let Some(task) = task {
1268                task.await.log_err();
1269            }
1270        }));
1271    }
1272
1273    fn start_editing_message(
1274        &mut self,
1275        message_id: MessageId,
1276        message_segments: &[MessageSegment],
1277        window: &mut Window,
1278        cx: &mut Context<Self>,
1279    ) {
1280        // User message should always consist of a single text segment,
1281        // therefore we can skip returning early if it's not a text segment.
1282        let Some(MessageSegment::Text(message_text)) = message_segments.first() else {
1283            return;
1284        };
1285
1286        // Cancel any ongoing streaming when user starts editing a previous message
1287        self.cancel_last_completion(window, cx);
1288
1289        let editor = crate::message_editor::create_editor(
1290            self.workspace.clone(),
1291            self.context_store.downgrade(),
1292            self.thread_store.downgrade(),
1293            self.text_thread_store.downgrade(),
1294            window,
1295            cx,
1296        );
1297        editor.update(cx, |editor, cx| {
1298            editor.set_text(message_text.clone(), window, cx);
1299            editor.focus_handle(cx).focus(window);
1300            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1301        });
1302        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1303            EditorEvent::BufferEdited => {
1304                this.update_editing_message_token_count(true, cx);
1305            }
1306            _ => {}
1307        });
1308
1309        let context_picker_menu_handle = PopoverMenuHandle::default();
1310        let context_strip = cx.new(|cx| {
1311            ContextStrip::new(
1312                self.context_store.clone(),
1313                self.workspace.clone(),
1314                Some(self.thread_store.downgrade()),
1315                Some(self.text_thread_store.downgrade()),
1316                context_picker_menu_handle.clone(),
1317                SuggestContextKind::File,
1318                window,
1319                cx,
1320            )
1321        });
1322
1323        let context_strip_subscription =
1324            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1325
1326        self.editing_message = Some((
1327            message_id,
1328            EditingMessageState {
1329                editor: editor.clone(),
1330                context_strip,
1331                context_picker_menu_handle,
1332                last_estimated_token_count: None,
1333                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1334                _update_token_count_task: None,
1335            },
1336        ));
1337        self.update_editing_message_token_count(false, cx);
1338        cx.notify();
1339    }
1340
1341    fn handle_context_strip_event(
1342        &mut self,
1343        _context_strip: &Entity<ContextStrip>,
1344        event: &ContextStripEvent,
1345        window: &mut Window,
1346        cx: &mut Context<Self>,
1347    ) {
1348        if let Some((_, state)) = self.editing_message.as_ref() {
1349            match event {
1350                ContextStripEvent::PickerDismissed
1351                | ContextStripEvent::BlurredEmpty
1352                | ContextStripEvent::BlurredDown => {
1353                    let editor_focus_handle = state.editor.focus_handle(cx);
1354                    window.focus(&editor_focus_handle);
1355                }
1356                ContextStripEvent::BlurredUp => {}
1357            }
1358        }
1359    }
1360
1361    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1362        let Some((message_id, state)) = self.editing_message.as_mut() else {
1363            return;
1364        };
1365
1366        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1367        state._update_token_count_task.take();
1368
1369        let Some(configured_model) = self.thread.read(cx).configured_model() else {
1370            state.last_estimated_token_count.take();
1371            return;
1372        };
1373
1374        let editor = state.editor.clone();
1375        let thread = self.thread.clone();
1376        let message_id = *message_id;
1377
1378        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1379            if debounce {
1380                cx.background_executor()
1381                    .timer(Duration::from_millis(200))
1382                    .await;
1383            }
1384
1385            let token_count = if let Some(task) = cx
1386                .update(|cx| {
1387                    let Some(message) = thread.read(cx).message(message_id) else {
1388                        log::error!("Message that was being edited no longer exists");
1389                        return None;
1390                    };
1391                    let message_text = editor.read(cx).text(cx);
1392
1393                    if message_text.is_empty() && message.loaded_context.is_empty() {
1394                        return None;
1395                    }
1396
1397                    let mut request_message = LanguageModelRequestMessage {
1398                        role: language_model::Role::User,
1399                        content: Vec::new(),
1400                        cache: false,
1401                    };
1402
1403                    message
1404                        .loaded_context
1405                        .add_to_request_message(&mut request_message);
1406
1407                    if !message_text.is_empty() {
1408                        request_message
1409                            .content
1410                            .push(MessageContent::Text(message_text));
1411                    }
1412
1413                    let request = language_model::LanguageModelRequest {
1414                        thread_id: None,
1415                        prompt_id: None,
1416                        mode: None,
1417                        messages: vec![request_message],
1418                        tools: vec![],
1419                        stop: vec![],
1420                        temperature: None,
1421                    };
1422
1423                    Some(configured_model.model.count_tokens(request, cx))
1424                })
1425                .ok()
1426                .flatten()
1427            {
1428                task.await.log_err()
1429            } else {
1430                Some(0)
1431            };
1432
1433            if let Some(token_count) = token_count {
1434                this.update(cx, |this, cx| {
1435                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1436                        return;
1437                    };
1438
1439                    state.last_estimated_token_count = Some(token_count);
1440                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1441                })
1442                .ok();
1443            };
1444        }));
1445    }
1446
1447    fn toggle_context_picker(
1448        &mut self,
1449        _: &crate::ToggleContextPicker,
1450        window: &mut Window,
1451        cx: &mut Context<Self>,
1452    ) {
1453        if let Some((_, state)) = self.editing_message.as_mut() {
1454            let handle = state.context_picker_menu_handle.clone();
1455            window.defer(cx, move |window, cx| {
1456                handle.toggle(window, cx);
1457            });
1458        }
1459    }
1460
1461    fn remove_all_context(
1462        &mut self,
1463        _: &crate::RemoveAllContext,
1464        _window: &mut Window,
1465        cx: &mut Context<Self>,
1466    ) {
1467        self.context_store.update(cx, |store, _cx| store.clear());
1468        cx.notify();
1469    }
1470
1471    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1472        if let Some((_, state)) = self.editing_message.as_mut() {
1473            if state.context_picker_menu_handle.is_deployed() {
1474                cx.propagate();
1475            } else {
1476                state.context_strip.focus_handle(cx).focus(window);
1477            }
1478        }
1479    }
1480
1481    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1482        let images = cx
1483            .read_from_clipboard()
1484            .map(|item| {
1485                item.into_entries()
1486                    .filter_map(|entry| {
1487                        if let ClipboardEntry::Image(image) = entry {
1488                            Some(image)
1489                        } else {
1490                            None
1491                        }
1492                    })
1493                    .collect::<Vec<_>>()
1494            })
1495            .unwrap_or_default();
1496
1497        if images.is_empty() {
1498            return;
1499        }
1500        cx.stop_propagation();
1501
1502        self.context_store.update(cx, |store, cx| {
1503            for image in images {
1504                store.add_image_instance(Arc::new(image), cx);
1505            }
1506        });
1507    }
1508
1509    fn cancel_editing_message(&mut self, _: &menu::Cancel, _: &mut Window, cx: &mut Context<Self>) {
1510        self.editing_message.take();
1511        cx.notify();
1512    }
1513
1514    fn confirm_editing_message(
1515        &mut self,
1516        _: &menu::Confirm,
1517        window: &mut Window,
1518        cx: &mut Context<Self>,
1519    ) {
1520        let Some((message_id, state)) = self.editing_message.take() else {
1521            return;
1522        };
1523
1524        let Some(model) = self
1525            .thread
1526            .update(cx, |thread, cx| thread.get_or_init_configured_model(cx))
1527        else {
1528            return;
1529        };
1530
1531        if model.provider.must_accept_terms(cx) {
1532            cx.notify();
1533            return;
1534        }
1535
1536        let edited_text = state.editor.read(cx).text(cx);
1537
1538        let new_context = self
1539            .context_store
1540            .read(cx)
1541            .new_context_for_thread(self.thread.read(cx), Some(message_id));
1542
1543        let project = self.thread.read(cx).project().clone();
1544        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1545
1546        let load_context_task =
1547            crate::context::load_context(new_context, &project, &prompt_store, cx);
1548        self._load_edited_message_context_task =
1549            Some(cx.spawn_in(window, async move |this, cx| {
1550                let context = load_context_task.await;
1551                let _ = this
1552                    .update_in(cx, |this, window, cx| {
1553                        this.thread.update(cx, |thread, cx| {
1554                            thread.edit_message(
1555                                message_id,
1556                                Role::User,
1557                                vec![MessageSegment::Text(edited_text)],
1558                                Some(context.loaded_context),
1559                                cx,
1560                            );
1561                            for message_id in this.messages_after(message_id) {
1562                                thread.delete_message(*message_id, cx);
1563                            }
1564                        });
1565
1566                        this.thread.update(cx, |thread, cx| {
1567                            thread.advance_prompt_id();
1568                            thread.send_to_model(model.model, Some(window.window_handle()), cx);
1569                        });
1570                        this._load_edited_message_context_task = None;
1571                        cx.notify();
1572                    })
1573                    .log_err();
1574            }));
1575    }
1576
1577    fn messages_after(&self, message_id: MessageId) -> &[MessageId] {
1578        self.messages
1579            .iter()
1580            .position(|id| *id == message_id)
1581            .map(|index| &self.messages[index + 1..])
1582            .unwrap_or(&[])
1583    }
1584
1585    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1586        self.cancel_editing_message(&menu::Cancel, window, cx);
1587    }
1588
1589    fn handle_regenerate_click(
1590        &mut self,
1591        _: &ClickEvent,
1592        window: &mut Window,
1593        cx: &mut Context<Self>,
1594    ) {
1595        self.confirm_editing_message(&menu::Confirm, window, cx);
1596    }
1597
1598    fn handle_feedback_click(
1599        &mut self,
1600        message_id: MessageId,
1601        feedback: ThreadFeedback,
1602        window: &mut Window,
1603        cx: &mut Context<Self>,
1604    ) {
1605        let report = self.thread.update(cx, |thread, cx| {
1606            thread.report_message_feedback(message_id, feedback, cx)
1607        });
1608
1609        cx.spawn(async move |this, cx| {
1610            report.await?;
1611            this.update(cx, |_this, cx| cx.notify())
1612        })
1613        .detach_and_log_err(cx);
1614
1615        match feedback {
1616            ThreadFeedback::Positive => {
1617                self.open_feedback_editors.remove(&message_id);
1618            }
1619            ThreadFeedback::Negative => {
1620                self.handle_show_feedback_comments(message_id, window, cx);
1621            }
1622        }
1623    }
1624
1625    fn handle_show_feedback_comments(
1626        &mut self,
1627        message_id: MessageId,
1628        window: &mut Window,
1629        cx: &mut Context<Self>,
1630    ) {
1631        let buffer = cx.new(|cx| {
1632            let empty_string = String::new();
1633            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1634        });
1635
1636        let editor = cx.new(|cx| {
1637            let mut editor = Editor::new(
1638                editor::EditorMode::AutoHeight { max_lines: 4 },
1639                buffer,
1640                None,
1641                window,
1642                cx,
1643            );
1644            editor.set_placeholder_text(
1645                "What went wrong? Share your feedback so we can improve.",
1646                cx,
1647            );
1648            editor
1649        });
1650
1651        editor.read(cx).focus_handle(cx).focus(window);
1652        self.open_feedback_editors.insert(message_id, editor);
1653        cx.notify();
1654    }
1655
1656    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1657        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1658            return;
1659        };
1660
1661        let report_task = self.thread.update(cx, |thread, cx| {
1662            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1663        });
1664
1665        let comments = editor.read(cx).text(cx);
1666        if !comments.is_empty() {
1667            let thread_id = self.thread.read(cx).id().clone();
1668            let comments_value = String::from(comments.as_str());
1669
1670            let message_content = self
1671                .thread
1672                .read(cx)
1673                .message(message_id)
1674                .map(|msg| msg.to_string())
1675                .unwrap_or_default();
1676
1677            telemetry::event!(
1678                "Assistant Thread Feedback Comments",
1679                thread_id,
1680                message_id = message_id.0,
1681                message_content,
1682                comments = comments_value
1683            );
1684
1685            self.open_feedback_editors.remove(&message_id);
1686
1687            cx.spawn(async move |this, cx| {
1688                report_task.await?;
1689                this.update(cx, |_this, cx| cx.notify())
1690            })
1691            .detach_and_log_err(cx);
1692        }
1693    }
1694
1695    fn render_edit_message_editor(
1696        &self,
1697        state: &EditingMessageState,
1698        _window: &mut Window,
1699        cx: &Context<Self>,
1700    ) -> impl IntoElement {
1701        let settings = ThemeSettings::get_global(cx);
1702        let font_size = TextSize::Small
1703            .rems(cx)
1704            .to_pixels(settings.agent_font_size(cx));
1705        let line_height = font_size * 1.75;
1706
1707        let colors = cx.theme().colors();
1708
1709        let text_style = TextStyle {
1710            color: colors.text,
1711            font_family: settings.buffer_font.family.clone(),
1712            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1713            font_features: settings.buffer_font.features.clone(),
1714            font_size: font_size.into(),
1715            line_height: line_height.into(),
1716            ..Default::default()
1717        };
1718
1719        v_flex()
1720            .key_context("EditMessageEditor")
1721            .on_action(cx.listener(Self::toggle_context_picker))
1722            .on_action(cx.listener(Self::remove_all_context))
1723            .on_action(cx.listener(Self::move_up))
1724            .on_action(cx.listener(Self::cancel_editing_message))
1725            .on_action(cx.listener(Self::confirm_editing_message))
1726            .capture_action(cx.listener(Self::paste))
1727            .min_h_6()
1728            .flex_grow()
1729            .w_full()
1730            .gap_2()
1731            .child(EditorElement::new(
1732                &state.editor,
1733                EditorStyle {
1734                    background: colors.editor_background,
1735                    local_player: cx.theme().players().local(),
1736                    text: text_style,
1737                    syntax: cx.theme().syntax().clone(),
1738                    ..Default::default()
1739                },
1740            ))
1741            .child(state.context_strip.clone())
1742    }
1743
1744    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1745        let message_id = self.messages[ix];
1746        let Some(message) = self.thread.read(cx).message(message_id) else {
1747            return Empty.into_any();
1748        };
1749
1750        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1751            return Empty.into_any();
1752        };
1753
1754        let workspace = self.workspace.clone();
1755        let thread = self.thread.read(cx);
1756
1757        // Get all the data we need from thread before we start using it in closures
1758        let checkpoint = thread.checkpoint_for_message(message_id);
1759        let added_context = thread
1760            .context_for_message(message_id)
1761            .map(|context| AddedContext::new_attached(context, cx))
1762            .collect::<Vec<_>>();
1763
1764        let tool_uses = thread.tool_uses_for_message(message_id, cx);
1765        let has_tool_uses = !tool_uses.is_empty();
1766        let is_generating = thread.is_generating();
1767        let is_generating_stale = thread.is_generation_stale().unwrap_or(false);
1768
1769        let is_first_message = ix == 0;
1770        let is_last_message = ix == self.messages.len() - 1;
1771
1772        let loading_dots = (is_generating_stale && is_last_message)
1773            .then(|| AnimatedLabel::new("").size(LabelSize::Small));
1774
1775        let editing_message_state = self
1776            .editing_message
1777            .as_ref()
1778            .filter(|(id, _)| *id == message_id)
1779            .map(|(_, state)| state);
1780
1781        let colors = cx.theme().colors();
1782        let editor_bg_color = colors.editor_background;
1783
1784        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::FileCode)
1785            .shape(ui::IconButtonShape::Square)
1786            .icon_size(IconSize::XSmall)
1787            .icon_color(Color::Ignored)
1788            .tooltip(Tooltip::text("Open Thread as Markdown"))
1789            .on_click(|_, window, cx| {
1790                window.dispatch_action(Box::new(OpenActiveThreadAsMarkdown), cx)
1791            });
1792
1793        // For all items that should be aligned with the LLM's response.
1794        const RESPONSE_PADDING_X: Pixels = px(19.);
1795
1796        let show_feedback = thread.is_turn_end(ix);
1797
1798        let feedback_container = h_flex()
1799            .group("feedback_container")
1800            .mt_1()
1801            .py_2()
1802            .px(RESPONSE_PADDING_X)
1803            .gap_1()
1804            .flex_wrap()
1805            .justify_end();
1806        let feedback_items = match self.thread.read(cx).message_feedback(message_id) {
1807            Some(feedback) => feedback_container
1808                .child(
1809                    div().mr_1().visible_on_hover("feedback_container").child(
1810                        Label::new(match feedback {
1811                            ThreadFeedback::Positive => "Thanks for your feedback!",
1812                            ThreadFeedback::Negative => {
1813                                "We appreciate your feedback and will use it to improve."
1814                            }
1815                        })
1816                    .color(Color::Muted)
1817                    .size(LabelSize::XSmall)
1818                    .truncate())
1819                )
1820                .child(
1821                    h_flex()
1822                        .pr_1()
1823                        .gap_1()
1824                        .child(
1825                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1826                                .shape(ui::IconButtonShape::Square)
1827                                .icon_size(IconSize::XSmall)
1828                                .icon_color(match feedback {
1829                                    ThreadFeedback::Positive => Color::Accent,
1830                                    ThreadFeedback::Negative => Color::Ignored,
1831                                })
1832                                .tooltip(Tooltip::text("Helpful Response"))
1833                                .on_click(cx.listener(move |this, _, window, cx| {
1834                                    this.handle_feedback_click(
1835                                        message_id,
1836                                        ThreadFeedback::Positive,
1837                                        window,
1838                                        cx,
1839                                    );
1840                                })),
1841                        )
1842                        .child(
1843                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1844                                .shape(ui::IconButtonShape::Square)
1845                                .icon_size(IconSize::XSmall)
1846                                .icon_color(match feedback {
1847                                    ThreadFeedback::Positive => Color::Ignored,
1848                                    ThreadFeedback::Negative => Color::Accent,
1849                                })
1850                                .tooltip(Tooltip::text("Not Helpful"))
1851                                .on_click(cx.listener(move |this, _, window, cx| {
1852                                    this.handle_feedback_click(
1853                                        message_id,
1854                                        ThreadFeedback::Negative,
1855                                        window,
1856                                        cx,
1857                                    );
1858                                })),
1859                        )
1860                        .child(open_as_markdown),
1861                )
1862                .into_any_element(),
1863            None => feedback_container
1864                .child(
1865                    div().mr_1().visible_on_hover("feedback_container").child(
1866                        Label::new(
1867                            "Rating the thread sends all of your current conversation to the Zed team.",
1868                        )
1869                        .color(Color::Muted)
1870                    .size(LabelSize::XSmall)
1871                    .truncate())
1872                )
1873                .child(
1874                    h_flex()
1875                        .pr_1()
1876                        .gap_1()
1877                        .child(
1878                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
1879                                .icon_size(IconSize::XSmall)
1880                                .icon_color(Color::Ignored)
1881                                .shape(ui::IconButtonShape::Square)
1882                                .tooltip(Tooltip::text("Helpful Response"))
1883                                .on_click(cx.listener(move |this, _, window, cx| {
1884                                    this.handle_feedback_click(
1885                                        message_id,
1886                                        ThreadFeedback::Positive,
1887                                        window,
1888                                        cx,
1889                                    );
1890                                })),
1891                        )
1892                        .child(
1893                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
1894                                .icon_size(IconSize::XSmall)
1895                                .icon_color(Color::Ignored)
1896                                .shape(ui::IconButtonShape::Square)
1897                                .tooltip(Tooltip::text("Not Helpful"))
1898                                .on_click(cx.listener(move |this, _, window, cx| {
1899                                    this.handle_feedback_click(
1900                                        message_id,
1901                                        ThreadFeedback::Negative,
1902                                        window,
1903                                        cx,
1904                                    );
1905                                })),
1906                        )
1907                        .child(open_as_markdown),
1908                )
1909                .into_any_element(),
1910        };
1911
1912        let message_is_empty = message.should_display_content();
1913        let has_content = !message_is_empty || !added_context.is_empty();
1914
1915        let message_content = has_content.then(|| {
1916            if let Some(state) = editing_message_state.as_ref() {
1917                self.render_edit_message_editor(state, window, cx)
1918                    .into_any_element()
1919            } else {
1920                v_flex()
1921                    .w_full()
1922                    .gap_1()
1923                    .when(!message_is_empty, |parent| {
1924                        parent.child(div().min_h_6().child(self.render_message_content(
1925                            message_id,
1926                            rendered_message,
1927                            has_tool_uses,
1928                            workspace.clone(),
1929                            window,
1930                            cx,
1931                        )))
1932                    })
1933                    .when(!added_context.is_empty(), |parent| {
1934                        parent.child(h_flex().flex_wrap().gap_1().children(
1935                            added_context.into_iter().map(|added_context| {
1936                                let context = added_context.handle.clone();
1937                                ContextPill::added(added_context, false, false, None).on_click(
1938                                    Rc::new(cx.listener({
1939                                        let workspace = workspace.clone();
1940                                        move |_, _, window, cx| {
1941                                            if let Some(workspace) = workspace.upgrade() {
1942                                                open_context(&context, workspace, window, cx);
1943                                                cx.notify();
1944                                            }
1945                                        }
1946                                    })),
1947                                )
1948                            }),
1949                        ))
1950                    })
1951                    .into_any_element()
1952            }
1953        });
1954
1955        let styled_message = match message.role {
1956            Role::User => v_flex()
1957                .id(("message-container", ix))
1958                .pt_2()
1959                .pl_2()
1960                .pr_2p5()
1961                .pb_4()
1962                .child(
1963                    v_flex()
1964                        .id(("user-message", ix))
1965                        .bg(editor_bg_color)
1966                        .rounded_lg()
1967                        .shadow_md()
1968                        .border_1()
1969                        .border_color(colors.border)
1970                        .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
1971                        .cursor_pointer()
1972                        .child(
1973                            h_flex()
1974                                .p_2p5()
1975                                .gap_1()
1976                                .children(message_content)
1977                                .when_some(editing_message_state, |this, state| {
1978                                    let focus_handle = state.editor.focus_handle(cx).clone();
1979                                    this.w_full().justify_between().child(
1980                                        h_flex()
1981                                            .gap_0p5()
1982                                            .child(
1983                                                IconButton::new(
1984                                                    "cancel-edit-message",
1985                                                    IconName::Close,
1986                                                )
1987                                                .shape(ui::IconButtonShape::Square)
1988                                                .icon_color(Color::Error)
1989                                                .tooltip({
1990                                                    let focus_handle = focus_handle.clone();
1991                                                    move |window, cx| {
1992                                                        Tooltip::for_action_in(
1993                                                            "Cancel Edit",
1994                                                            &menu::Cancel,
1995                                                            &focus_handle,
1996                                                            window,
1997                                                            cx,
1998                                                        )
1999                                                    }
2000                                                })
2001                                                .on_click(cx.listener(Self::handle_cancel_click)),
2002                                            )
2003                                            .child(
2004                                                IconButton::new(
2005                                                    "confirm-edit-message",
2006                                                    IconName::Check,
2007                                                )
2008                                                .disabled(state.editor.read(cx).is_empty(cx))
2009                                                .shape(ui::IconButtonShape::Square)
2010                                                .icon_color(Color::Success)
2011                                                .tooltip({
2012                                                    let focus_handle = focus_handle.clone();
2013                                                    move |window, cx| {
2014                                                        Tooltip::for_action_in(
2015                                                            "Regenerate",
2016                                                            &menu::Confirm,
2017                                                            &focus_handle,
2018                                                            window,
2019                                                            cx,
2020                                                        )
2021                                                    }
2022                                                })
2023                                                .on_click(
2024                                                    cx.listener(Self::handle_regenerate_click),
2025                                                ),
2026                                            ),
2027                                    )
2028                                }),
2029                        )
2030                        .when(editing_message_state.is_none(), |this| {
2031                            this.tooltip(Tooltip::text("Click To Edit"))
2032                        })
2033                        .on_click(cx.listener({
2034                            let message_segments = message.segments.clone();
2035                            move |this, _, window, cx| {
2036                                this.start_editing_message(
2037                                    message_id,
2038                                    &message_segments,
2039                                    window,
2040                                    cx,
2041                                );
2042                            }
2043                        })),
2044                ),
2045            Role::Assistant => v_flex()
2046                .id(("message-container", ix))
2047                .px(RESPONSE_PADDING_X)
2048                .gap_2()
2049                .children(message_content)
2050                .when(has_tool_uses, |parent| {
2051                    parent.children(tool_uses.into_iter().map(|tool_use| {
2052                        self.render_tool_use(tool_use, window, workspace.clone(), cx)
2053                    }))
2054                }),
2055            Role::System => div().id(("message-container", ix)).py_1().px_2().child(
2056                v_flex()
2057                    .bg(colors.editor_background)
2058                    .rounded_sm()
2059                    .child(div().p_4().children(message_content)),
2060            ),
2061        };
2062
2063        let after_editing_message = self
2064            .editing_message
2065            .as_ref()
2066            .map_or(false, |(editing_message_id, _)| {
2067                message_id > *editing_message_id
2068            });
2069
2070        let panel_background = cx.theme().colors().panel_background;
2071
2072        WithRemSize::new(ThemeSettings::get_global(cx).agent_font_size(cx))
2073            .size_full()
2074            .child(
2075                v_flex()
2076                    .w_full()
2077                    .map(|parent| {
2078                        if let Some(checkpoint) = checkpoint.filter(|_| is_generating) {
2079                            let mut is_pending = false;
2080                            let mut error = None;
2081                            if let Some(last_restore_checkpoint) =
2082                                self.thread.read(cx).last_restore_checkpoint()
2083                            {
2084                                if last_restore_checkpoint.message_id() == message_id {
2085                                    match last_restore_checkpoint {
2086                                        LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2087                                        LastRestoreCheckpoint::Error { error: err, .. } => {
2088                                            error = Some(err.clone());
2089                                        }
2090                                    }
2091                                }
2092                            }
2093
2094                            let restore_checkpoint_button =
2095                                Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2096                                    .icon(if error.is_some() {
2097                                        IconName::XCircle
2098                                    } else {
2099                                        IconName::Undo
2100                                    })
2101                                    .icon_size(IconSize::XSmall)
2102                                    .icon_position(IconPosition::Start)
2103                                    .icon_color(if error.is_some() {
2104                                        Some(Color::Error)
2105                                    } else {
2106                                        None
2107                                    })
2108                                    .label_size(LabelSize::XSmall)
2109                                    .disabled(is_pending)
2110                                    .on_click(cx.listener(move |this, _, _window, cx| {
2111                                        this.thread.update(cx, |thread, cx| {
2112                                            thread
2113                                                .restore_checkpoint(checkpoint.clone(), cx)
2114                                                .detach_and_log_err(cx);
2115                                        });
2116                                    }));
2117
2118                            let restore_checkpoint_button = if is_pending {
2119                                restore_checkpoint_button
2120                                    .with_animation(
2121                                        ("pulsating-restore-checkpoint-button", ix),
2122                                        Animation::new(Duration::from_secs(2))
2123                                            .repeat()
2124                                            .with_easing(pulsating_between(0.6, 1.)),
2125                                        |label, delta| label.alpha(delta),
2126                                    )
2127                                    .into_any_element()
2128                            } else if let Some(error) = error {
2129                                restore_checkpoint_button
2130                                    .tooltip(Tooltip::text(error.to_string()))
2131                                    .into_any_element()
2132                            } else {
2133                                restore_checkpoint_button.into_any_element()
2134                            };
2135
2136                            parent.child(
2137                                h_flex()
2138                                    .pt_2p5()
2139                                    .px_2p5()
2140                                    .w_full()
2141                                    .gap_1()
2142                                    .child(ui::Divider::horizontal())
2143                                    .child(restore_checkpoint_button)
2144                                    .child(ui::Divider::horizontal()),
2145                            )
2146                        } else {
2147                            parent
2148                        }
2149                    })
2150                    .when(is_first_message, |parent| {
2151                        parent.child(self.render_rules_item(cx))
2152                    })
2153                    .child(styled_message)
2154                    .when(is_generating && is_last_message, |this| {
2155                        this.child(
2156                            h_flex()
2157                                .h_8()
2158                                .mt_2()
2159                                .mb_4()
2160                                .ml_4()
2161                                .py_1p5()
2162                                .when_some(loading_dots, |this, loading_dots| {
2163                                    this.child(loading_dots)
2164                                }),
2165                        )
2166                    })
2167                    .when(show_feedback, move |parent| {
2168                        parent.child(feedback_items).when_some(
2169                            self.open_feedback_editors.get(&message_id),
2170                            move |parent, feedback_editor| {
2171                                let focus_handle = feedback_editor.focus_handle(cx);
2172                                parent.child(
2173                                    v_flex()
2174                                        .key_context("AgentFeedbackMessageEditor")
2175                                        .on_action(cx.listener(
2176                                            move |this, _: &menu::Cancel, _, cx| {
2177                                                this.open_feedback_editors.remove(&message_id);
2178                                                cx.notify();
2179                                            },
2180                                        ))
2181                                        .on_action(cx.listener(
2182                                            move |this, _: &menu::Confirm, _, cx| {
2183                                                this.submit_feedback_message(message_id, cx);
2184                                                cx.notify();
2185                                            },
2186                                        ))
2187                                        .on_action(cx.listener(Self::confirm_editing_message))
2188                                        .mb_2()
2189                                        .mx_4()
2190                                        .p_2()
2191                                        .rounded_md()
2192                                        .border_1()
2193                                        .border_color(cx.theme().colors().border)
2194                                        .bg(cx.theme().colors().editor_background)
2195                                        .child(feedback_editor.clone())
2196                                        .child(
2197                                            h_flex()
2198                                                .gap_1()
2199                                                .justify_end()
2200                                                .child(
2201                                                    Button::new(
2202                                                        "dismiss-feedback-message",
2203                                                        "Cancel",
2204                                                    )
2205                                                    .label_size(LabelSize::Small)
2206                                                    .key_binding(
2207                                                        KeyBinding::for_action_in(
2208                                                            &menu::Cancel,
2209                                                            &focus_handle,
2210                                                            window,
2211                                                            cx,
2212                                                        )
2213                                                        .map(|kb| kb.size(rems_from_px(10.))),
2214                                                    )
2215                                                    .on_click(cx.listener(
2216                                                        move |this, _, _window, cx| {
2217                                                            this.open_feedback_editors
2218                                                                .remove(&message_id);
2219                                                            cx.notify();
2220                                                        },
2221                                                    )),
2222                                                )
2223                                                .child(
2224                                                    Button::new(
2225                                                        "submit-feedback-message",
2226                                                        "Share Feedback",
2227                                                    )
2228                                                    .style(ButtonStyle::Tinted(
2229                                                        ui::TintColor::Accent,
2230                                                    ))
2231                                                    .label_size(LabelSize::Small)
2232                                                    .key_binding(
2233                                                        KeyBinding::for_action_in(
2234                                                            &menu::Confirm,
2235                                                            &focus_handle,
2236                                                            window,
2237                                                            cx,
2238                                                        )
2239                                                        .map(|kb| kb.size(rems_from_px(10.))),
2240                                                    )
2241                                                    .on_click(cx.listener(
2242                                                        move |this, _, _window, cx| {
2243                                                            this.submit_feedback_message(
2244                                                                message_id, cx,
2245                                                            );
2246                                                            cx.notify()
2247                                                        },
2248                                                    )),
2249                                                ),
2250                                        ),
2251                                )
2252                            },
2253                        )
2254                    })
2255                    .when(after_editing_message, |parent| {
2256                        // Backdrop to dim out the whole thread below the editing user message
2257                        parent.relative().child(
2258                            div()
2259                                .occlude()
2260                                .absolute()
2261                                .inset_0()
2262                                .size_full()
2263                                .bg(panel_background)
2264                                .opacity(0.8),
2265                        )
2266                    }),
2267            )
2268            .into_any()
2269    }
2270
2271    fn render_message_content(
2272        &self,
2273        message_id: MessageId,
2274        rendered_message: &RenderedMessage,
2275        has_tool_uses: bool,
2276        workspace: WeakEntity<Workspace>,
2277        window: &Window,
2278        cx: &Context<Self>,
2279    ) -> impl IntoElement {
2280        let is_last_message = self.messages.last() == Some(&message_id);
2281        let is_generating = self.thread.read(cx).is_generating();
2282        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2283            rendered_message
2284                .segments
2285                .iter()
2286                .enumerate()
2287                .next_back()
2288                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2289                .map(|(index, _)| index)
2290        } else {
2291            None
2292        };
2293
2294        let message_role = self
2295            .thread
2296            .read(cx)
2297            .message(message_id)
2298            .map(|m| m.role)
2299            .unwrap_or(Role::User);
2300
2301        let is_assistant_message = message_role == Role::Assistant;
2302        let is_user_message = message_role == Role::User;
2303
2304        v_flex()
2305            .text_ui(cx)
2306            .gap_2()
2307            .when(is_user_message, |this| this.text_xs())
2308            .children(
2309                rendered_message.segments.iter().enumerate().map(
2310                    |(index, segment)| match segment {
2311                        RenderedMessageSegment::Thinking {
2312                            content,
2313                            scroll_handle,
2314                        } => self
2315                            .render_message_thinking_segment(
2316                                message_id,
2317                                index,
2318                                content.clone(),
2319                                &scroll_handle,
2320                                Some(index) == pending_thinking_segment_index,
2321                                window,
2322                                cx,
2323                            )
2324                            .into_any_element(),
2325                        RenderedMessageSegment::Text(markdown) => {
2326                            let markdown_element = MarkdownElement::new(
2327                                markdown.clone(),
2328                                if is_user_message {
2329                                    let mut style = default_markdown_style(window, cx);
2330                                    let mut text_style = window.text_style();
2331                                    let theme_settings = ThemeSettings::get_global(cx);
2332
2333                                    let buffer_font = theme_settings.buffer_font.family.clone();
2334                                    let buffer_font_size = TextSize::Small.rems(cx);
2335
2336                                    text_style.refine(&TextStyleRefinement {
2337                                        font_family: Some(buffer_font),
2338                                        font_size: Some(buffer_font_size.into()),
2339                                        ..Default::default()
2340                                    });
2341
2342                                    style.base_text_style = text_style;
2343                                    style
2344                                } else {
2345                                    default_markdown_style(window, cx)
2346                                },
2347                            );
2348
2349                            let markdown_element = if is_assistant_message {
2350                                markdown_element.code_block_renderer(
2351                                    markdown::CodeBlockRenderer::Custom {
2352                                        render: Arc::new({
2353                                            let workspace = workspace.clone();
2354                                            let active_thread = cx.entity();
2355                                            move |kind,
2356                                                  parsed_markdown,
2357                                                  range,
2358                                                  metadata,
2359                                                  window,
2360                                                  cx| {
2361                                                render_markdown_code_block(
2362                                                    message_id,
2363                                                    range.start,
2364                                                    kind,
2365                                                    parsed_markdown,
2366                                                    metadata,
2367                                                    active_thread.clone(),
2368                                                    workspace.clone(),
2369                                                    window,
2370                                                    cx,
2371                                                )
2372                                            }
2373                                        }),
2374                                        transform: Some(Arc::new({
2375                                            let active_thread = cx.entity();
2376                                            let editor_bg = cx.theme().colors().editor_background;
2377
2378                                            move |el, range, metadata, _, cx| {
2379                                                let is_expanded = active_thread
2380                                                    .read(cx)
2381                                                    .expanded_code_blocks
2382                                                    .get(&(message_id, range.start))
2383                                                    .copied()
2384                                                    .unwrap_or(true);
2385
2386                                                if is_expanded
2387                                                    || metadata.line_count
2388                                                        <= MAX_UNCOLLAPSED_LINES_IN_CODE_BLOCK
2389                                                {
2390                                                    return el;
2391                                                }
2392                                                el.child(
2393                                                    div()
2394                                                        .absolute()
2395                                                        .bottom_0()
2396                                                        .left_0()
2397                                                        .w_full()
2398                                                        .h_1_4()
2399                                                        .rounded_b_lg()
2400                                                        .bg(linear_gradient(
2401                                                            0.,
2402                                                            linear_color_stop(editor_bg, 0.),
2403                                                            linear_color_stop(
2404                                                                editor_bg.opacity(0.),
2405                                                                1.,
2406                                                            ),
2407                                                        )),
2408                                                )
2409                                            }
2410                                        })),
2411                                    },
2412                                )
2413                            } else {
2414                                markdown_element.code_block_renderer(
2415                                    markdown::CodeBlockRenderer::Default {
2416                                        copy_button: false,
2417                                        border: true,
2418                                    },
2419                                )
2420                            };
2421
2422                            div()
2423                                .child(markdown_element.on_url_click({
2424                                    let workspace = self.workspace.clone();
2425                                    move |text, window, cx| {
2426                                        open_markdown_link(text, workspace.clone(), window, cx);
2427                                    }
2428                                }))
2429                                .into_any_element()
2430                        }
2431                    },
2432                ),
2433            )
2434    }
2435
2436    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2437        cx.theme().colors().border.opacity(0.5)
2438    }
2439
2440    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2441        cx.theme()
2442            .colors()
2443            .element_background
2444            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2445    }
2446
2447    fn render_message_thinking_segment(
2448        &self,
2449        message_id: MessageId,
2450        ix: usize,
2451        markdown: Entity<Markdown>,
2452        scroll_handle: &ScrollHandle,
2453        pending: bool,
2454        window: &Window,
2455        cx: &Context<Self>,
2456    ) -> impl IntoElement {
2457        let is_open = self
2458            .expanded_thinking_segments
2459            .get(&(message_id, ix))
2460            .copied()
2461            .unwrap_or_default();
2462
2463        let editor_bg = cx.theme().colors().panel_background;
2464
2465        div().map(|this| {
2466            if pending {
2467                this.v_flex()
2468                    .mt_neg_2()
2469                    .mb_1p5()
2470                    .child(
2471                        h_flex()
2472                            .group("disclosure-header")
2473                            .justify_between()
2474                            .child(
2475                                h_flex()
2476                                    .gap_1p5()
2477                                    .child(
2478                                        Icon::new(IconName::LightBulb)
2479                                            .size(IconSize::XSmall)
2480                                            .color(Color::Muted),
2481                                    )
2482                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2483                            )
2484                            .child(
2485                                h_flex()
2486                                    .gap_1()
2487                                    .child(
2488                                        div().visible_on_hover("disclosure-header").child(
2489                                            Disclosure::new("thinking-disclosure", is_open)
2490                                                .opened_icon(IconName::ChevronUp)
2491                                                .closed_icon(IconName::ChevronDown)
2492                                                .on_click(cx.listener({
2493                                                    move |this, _event, _window, _cx| {
2494                                                        let is_open = this
2495                                                            .expanded_thinking_segments
2496                                                            .entry((message_id, ix))
2497                                                            .or_insert(false);
2498
2499                                                        *is_open = !*is_open;
2500                                                    }
2501                                                })),
2502                                        ),
2503                                    )
2504                                    .child({
2505                                        Icon::new(IconName::ArrowCircle)
2506                                            .color(Color::Accent)
2507                                            .size(IconSize::Small)
2508                                            .with_animation(
2509                                                "arrow-circle",
2510                                                Animation::new(Duration::from_secs(2)).repeat(),
2511                                                |icon, delta| {
2512                                                    icon.transform(Transformation::rotate(
2513                                                        percentage(delta),
2514                                                    ))
2515                                                },
2516                                            )
2517                                    }),
2518                            ),
2519                    )
2520                    .when(!is_open, |this| {
2521                        let gradient_overlay = div()
2522                            .rounded_b_lg()
2523                            .h_full()
2524                            .absolute()
2525                            .w_full()
2526                            .bottom_0()
2527                            .left_0()
2528                            .bg(linear_gradient(
2529                                180.,
2530                                linear_color_stop(editor_bg, 1.),
2531                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2532                            ));
2533
2534                        this.child(
2535                            div()
2536                                .relative()
2537                                .bg(editor_bg)
2538                                .rounded_b_lg()
2539                                .mt_2()
2540                                .pl_4()
2541                                .child(
2542                                    div()
2543                                        .id(("thinking-content", ix))
2544                                        .max_h_20()
2545                                        .track_scroll(scroll_handle)
2546                                        .text_ui_sm(cx)
2547                                        .overflow_hidden()
2548                                        .child(
2549                                            MarkdownElement::new(
2550                                                markdown.clone(),
2551                                                default_markdown_style(window, cx),
2552                                            )
2553                                            .on_url_click({
2554                                                let workspace = self.workspace.clone();
2555                                                move |text, window, cx| {
2556                                                    open_markdown_link(
2557                                                        text,
2558                                                        workspace.clone(),
2559                                                        window,
2560                                                        cx,
2561                                                    );
2562                                                }
2563                                            }),
2564                                        ),
2565                                )
2566                                .child(gradient_overlay),
2567                        )
2568                    })
2569                    .when(is_open, |this| {
2570                        this.child(
2571                            div()
2572                                .id(("thinking-content", ix))
2573                                .h_full()
2574                                .bg(editor_bg)
2575                                .text_ui_sm(cx)
2576                                .child(
2577                                    MarkdownElement::new(
2578                                        markdown.clone(),
2579                                        default_markdown_style(window, cx),
2580                                    )
2581                                    .on_url_click({
2582                                        let workspace = self.workspace.clone();
2583                                        move |text, window, cx| {
2584                                            open_markdown_link(text, workspace.clone(), window, cx);
2585                                        }
2586                                    }),
2587                                ),
2588                        )
2589                    })
2590            } else {
2591                this.v_flex()
2592                    .mt_neg_2()
2593                    .child(
2594                        h_flex()
2595                            .group("disclosure-header")
2596                            .pr_1()
2597                            .justify_between()
2598                            .opacity(0.8)
2599                            .hover(|style| style.opacity(1.))
2600                            .child(
2601                                h_flex()
2602                                    .gap_1p5()
2603                                    .child(
2604                                        Icon::new(IconName::LightBulb)
2605                                            .size(IconSize::XSmall)
2606                                            .color(Color::Muted),
2607                                    )
2608                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2609                            )
2610                            .child(
2611                                div().visible_on_hover("disclosure-header").child(
2612                                    Disclosure::new("thinking-disclosure", is_open)
2613                                        .opened_icon(IconName::ChevronUp)
2614                                        .closed_icon(IconName::ChevronDown)
2615                                        .on_click(cx.listener({
2616                                            move |this, _event, _window, _cx| {
2617                                                let is_open = this
2618                                                    .expanded_thinking_segments
2619                                                    .entry((message_id, ix))
2620                                                    .or_insert(false);
2621
2622                                                *is_open = !*is_open;
2623                                            }
2624                                        })),
2625                                ),
2626                            ),
2627                    )
2628                    .child(
2629                        div()
2630                            .id(("thinking-content", ix))
2631                            .relative()
2632                            .mt_1p5()
2633                            .ml_1p5()
2634                            .pl_2p5()
2635                            .border_l_1()
2636                            .border_color(cx.theme().colors().border_variant)
2637                            .text_ui_sm(cx)
2638                            .when(is_open, |this| {
2639                                this.child(
2640                                    MarkdownElement::new(
2641                                        markdown.clone(),
2642                                        default_markdown_style(window, cx),
2643                                    )
2644                                    .on_url_click({
2645                                        let workspace = self.workspace.clone();
2646                                        move |text, window, cx| {
2647                                            open_markdown_link(text, workspace.clone(), window, cx);
2648                                        }
2649                                    }),
2650                                )
2651                            }),
2652                    )
2653            }
2654        })
2655    }
2656
2657    fn render_tool_use(
2658        &self,
2659        tool_use: ToolUse,
2660        window: &mut Window,
2661        workspace: WeakEntity<Workspace>,
2662        cx: &mut Context<Self>,
2663    ) -> impl IntoElement + use<> {
2664        if let Some(card) = self.thread.read(cx).card_for_tool(&tool_use.id) {
2665            return card.render(&tool_use.status, window, workspace, cx);
2666        }
2667
2668        let is_open = self
2669            .expanded_tool_uses
2670            .get(&tool_use.id)
2671            .copied()
2672            .unwrap_or_default();
2673
2674        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2675
2676        let fs = self
2677            .workspace
2678            .upgrade()
2679            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2680        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2681        let needs_confirmation_tools = tool_use.needs_confirmation;
2682
2683        let status_icons = div().child(match &tool_use.status {
2684            ToolUseStatus::NeedsConfirmation => {
2685                let icon = Icon::new(IconName::Warning)
2686                    .color(Color::Warning)
2687                    .size(IconSize::Small);
2688                icon.into_any_element()
2689            }
2690            ToolUseStatus::Pending
2691            | ToolUseStatus::InputStillStreaming
2692            | ToolUseStatus::Running => {
2693                let icon = Icon::new(IconName::ArrowCircle)
2694                    .color(Color::Accent)
2695                    .size(IconSize::Small);
2696                icon.with_animation(
2697                    "arrow-circle",
2698                    Animation::new(Duration::from_secs(2)).repeat(),
2699                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2700                )
2701                .into_any_element()
2702            }
2703            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2704            ToolUseStatus::Error(_) => {
2705                let icon = Icon::new(IconName::Close)
2706                    .color(Color::Error)
2707                    .size(IconSize::Small);
2708                icon.into_any_element()
2709            }
2710        });
2711
2712        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2713        let results_content_container = || v_flex().p_2().gap_0p5();
2714
2715        let results_content = v_flex()
2716            .gap_1()
2717            .child(
2718                results_content_container()
2719                    .child(
2720                        Label::new("Input")
2721                            .size(LabelSize::XSmall)
2722                            .color(Color::Muted)
2723                            .buffer_font(cx),
2724                    )
2725                    .child(
2726                        div()
2727                            .w_full()
2728                            .text_ui_sm(cx)
2729                            .children(rendered_tool_use.as_ref().map(|rendered| {
2730                                MarkdownElement::new(
2731                                    rendered.input.clone(),
2732                                    tool_use_markdown_style(window, cx),
2733                                )
2734                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2735                                    copy_button: false,
2736                                    border: false,
2737                                })
2738                                .on_url_click({
2739                                    let workspace = self.workspace.clone();
2740                                    move |text, window, cx| {
2741                                        open_markdown_link(text, workspace.clone(), window, cx);
2742                                    }
2743                                })
2744                            })),
2745                    ),
2746            )
2747            .map(|container| match tool_use.status {
2748                ToolUseStatus::Finished(_) => container.child(
2749                    results_content_container()
2750                        .border_t_1()
2751                        .border_color(self.tool_card_border_color(cx))
2752                        .child(
2753                            Label::new("Result")
2754                                .size(LabelSize::XSmall)
2755                                .color(Color::Muted)
2756                                .buffer_font(cx),
2757                        )
2758                        .child(div().w_full().text_ui_sm(cx).children(
2759                            rendered_tool_use.as_ref().map(|rendered| {
2760                                MarkdownElement::new(
2761                                    rendered.output.clone(),
2762                                    tool_use_markdown_style(window, cx),
2763                                )
2764                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2765                                    copy_button: false,
2766                                    border: false,
2767                                })
2768                                .on_url_click({
2769                                    let workspace = self.workspace.clone();
2770                                    move |text, window, cx| {
2771                                        open_markdown_link(text, workspace.clone(), window, cx);
2772                                    }
2773                                })
2774                                .into_any_element()
2775                            }),
2776                        )),
2777                ),
2778                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
2779                    results_content_container()
2780                        .border_t_1()
2781                        .border_color(self.tool_card_border_color(cx))
2782                        .child(
2783                            h_flex()
2784                                .gap_1()
2785                                .child(
2786                                    Icon::new(IconName::ArrowCircle)
2787                                        .size(IconSize::Small)
2788                                        .color(Color::Accent)
2789                                        .with_animation(
2790                                            "arrow-circle",
2791                                            Animation::new(Duration::from_secs(2)).repeat(),
2792                                            |icon, delta| {
2793                                                icon.transform(Transformation::rotate(percentage(
2794                                                    delta,
2795                                                )))
2796                                            },
2797                                        ),
2798                                )
2799                                .child(
2800                                    Label::new("Running…")
2801                                        .size(LabelSize::XSmall)
2802                                        .color(Color::Muted)
2803                                        .buffer_font(cx),
2804                                ),
2805                        ),
2806                ),
2807                ToolUseStatus::Error(_) => container.child(
2808                    results_content_container()
2809                        .border_t_1()
2810                        .border_color(self.tool_card_border_color(cx))
2811                        .child(
2812                            Label::new("Error")
2813                                .size(LabelSize::XSmall)
2814                                .color(Color::Muted)
2815                                .buffer_font(cx),
2816                        )
2817                        .child(
2818                            div()
2819                                .text_ui_sm(cx)
2820                                .children(rendered_tool_use.as_ref().map(|rendered| {
2821                                    MarkdownElement::new(
2822                                        rendered.output.clone(),
2823                                        tool_use_markdown_style(window, cx),
2824                                    )
2825                                    .on_url_click({
2826                                        let workspace = self.workspace.clone();
2827                                        move |text, window, cx| {
2828                                            open_markdown_link(text, workspace.clone(), window, cx);
2829                                        }
2830                                    })
2831                                    .into_any_element()
2832                                })),
2833                        ),
2834                ),
2835                ToolUseStatus::Pending => container,
2836                ToolUseStatus::NeedsConfirmation => container.child(
2837                    results_content_container()
2838                        .border_t_1()
2839                        .border_color(self.tool_card_border_color(cx))
2840                        .child(
2841                            Label::new("Asking Permission")
2842                                .size(LabelSize::Small)
2843                                .color(Color::Muted)
2844                                .buffer_font(cx),
2845                        ),
2846                ),
2847            });
2848
2849        let gradient_overlay = |color: Hsla| {
2850            div()
2851                .h_full()
2852                .absolute()
2853                .w_12()
2854                .bottom_0()
2855                .map(|element| {
2856                    if is_status_finished {
2857                        element.right_6()
2858                    } else {
2859                        element.right(px(44.))
2860                    }
2861                })
2862                .bg(linear_gradient(
2863                    90.,
2864                    linear_color_stop(color, 1.),
2865                    linear_color_stop(color.opacity(0.2), 0.),
2866                ))
2867        };
2868
2869        v_flex().gap_1().mb_2().map(|element| {
2870            if !needs_confirmation_tools {
2871                element.child(
2872                    v_flex()
2873                        .child(
2874                            h_flex()
2875                                .group("disclosure-header")
2876                                .relative()
2877                                .gap_1p5()
2878                                .justify_between()
2879                                .opacity(0.8)
2880                                .hover(|style| style.opacity(1.))
2881                                .when(!is_status_finished, |this| this.pr_2())
2882                                .child(
2883                                    h_flex()
2884                                        .id("tool-label-container")
2885                                        .gap_1p5()
2886                                        .max_w_full()
2887                                        .overflow_x_scroll()
2888                                        .child(
2889                                            Icon::new(tool_use.icon)
2890                                                .size(IconSize::XSmall)
2891                                                .color(Color::Muted),
2892                                        )
2893                                        .child(
2894                                            h_flex().pr_8().text_size(rems(0.8125)).children(
2895                                                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| {
2896                                                    open_markdown_link(text, workspace.clone(), window, cx);
2897                                                }}))
2898                                            ),
2899                                        ),
2900                                )
2901                                .child(
2902                                    h_flex()
2903                                        .gap_1()
2904                                        .child(
2905                                            div().visible_on_hover("disclosure-header").child(
2906                                                Disclosure::new("tool-use-disclosure", is_open)
2907                                                    .opened_icon(IconName::ChevronUp)
2908                                                    .closed_icon(IconName::ChevronDown)
2909                                                    .on_click(cx.listener({
2910                                                        let tool_use_id = tool_use.id.clone();
2911                                                        move |this, _event, _window, _cx| {
2912                                                            let is_open = this
2913                                                                .expanded_tool_uses
2914                                                                .entry(tool_use_id.clone())
2915                                                                .or_insert(false);
2916
2917                                                            *is_open = !*is_open;
2918                                                        }
2919                                                    })),
2920                                            ),
2921                                        )
2922                                        .child(status_icons),
2923                                )
2924                                .child(gradient_overlay(cx.theme().colors().panel_background)),
2925                        )
2926                        .map(|parent| {
2927                            if !is_open {
2928                                return parent;
2929                            }
2930
2931                            parent.child(
2932                                v_flex()
2933                                    .mt_1()
2934                                    .border_1()
2935                                    .border_color(self.tool_card_border_color(cx))
2936                                    .bg(cx.theme().colors().editor_background)
2937                                    .rounded_lg()
2938                                    .child(results_content),
2939                            )
2940                        }),
2941                )
2942            } else {
2943                v_flex()
2944                    .mb_2()
2945                    .rounded_lg()
2946                    .border_1()
2947                    .border_color(self.tool_card_border_color(cx))
2948                    .overflow_hidden()
2949                    .child(
2950                        h_flex()
2951                            .group("disclosure-header")
2952                            .relative()
2953                            .justify_between()
2954                            .py_1()
2955                            .map(|element| {
2956                                if is_status_finished {
2957                                    element.pl_2().pr_0p5()
2958                                } else {
2959                                    element.px_2()
2960                                }
2961                            })
2962                            .bg(self.tool_card_header_bg(cx))
2963                            .map(|element| {
2964                                if is_open {
2965                                    element.border_b_1().rounded_t_md()
2966                                } else if needs_confirmation {
2967                                    element.rounded_t_md()
2968                                } else {
2969                                    element.rounded_md()
2970                                }
2971                            })
2972                            .border_color(self.tool_card_border_color(cx))
2973                            .child(
2974                                h_flex()
2975                                    .id("tool-label-container")
2976                                    .gap_1p5()
2977                                    .max_w_full()
2978                                    .overflow_x_scroll()
2979                                    .child(
2980                                        Icon::new(tool_use.icon)
2981                                            .size(IconSize::XSmall)
2982                                            .color(Color::Muted),
2983                                    )
2984                                    .child(
2985                                        h_flex().pr_8().text_ui_sm(cx).children(
2986                                            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| {
2987                                                open_markdown_link(text, workspace.clone(), window, cx);
2988                                            }}))
2989                                        ),
2990                                    ),
2991                            )
2992                            .child(
2993                                h_flex()
2994                                    .gap_1()
2995                                    .child(
2996                                        div().visible_on_hover("disclosure-header").child(
2997                                            Disclosure::new("tool-use-disclosure", is_open)
2998                                                .opened_icon(IconName::ChevronUp)
2999                                                .closed_icon(IconName::ChevronDown)
3000                                                .on_click(cx.listener({
3001                                                    let tool_use_id = tool_use.id.clone();
3002                                                    move |this, _event, _window, _cx| {
3003                                                        let is_open = this
3004                                                            .expanded_tool_uses
3005                                                            .entry(tool_use_id.clone())
3006                                                            .or_insert(false);
3007
3008                                                        *is_open = !*is_open;
3009                                                    }
3010                                                })),
3011                                        ),
3012                                    )
3013                                    .child(status_icons),
3014                            )
3015                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3016                    )
3017                    .map(|parent| {
3018                        if !is_open {
3019                            return parent;
3020                        }
3021
3022                        parent.child(
3023                            v_flex()
3024                                .bg(cx.theme().colors().editor_background)
3025                                .map(|element| {
3026                                    if  needs_confirmation {
3027                                        element.rounded_none()
3028                                    } else {
3029                                        element.rounded_b_lg()
3030                                    }
3031                                })
3032                                .child(results_content),
3033                        )
3034                    })
3035                    .when(needs_confirmation, |this| {
3036                        this.child(
3037                            h_flex()
3038                                .py_1()
3039                                .pl_2()
3040                                .pr_1()
3041                                .gap_1()
3042                                .justify_between()
3043                                .bg(cx.theme().colors().editor_background)
3044                                .border_t_1()
3045                                .border_color(self.tool_card_border_color(cx))
3046                                .rounded_b_lg()
3047                                .child(
3048                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3049                                )
3050                                .child(
3051                                    h_flex()
3052                                        .gap_0p5()
3053                                        .child({
3054                                            let tool_id = tool_use.id.clone();
3055                                            Button::new(
3056                                                "always-allow-tool-action",
3057                                                "Always Allow",
3058                                            )
3059                                            .label_size(LabelSize::Small)
3060                                            .icon(IconName::CheckDouble)
3061                                            .icon_position(IconPosition::Start)
3062                                            .icon_size(IconSize::Small)
3063                                            .icon_color(Color::Success)
3064                                            .tooltip(move |window, cx|  {
3065                                                Tooltip::with_meta(
3066                                                    "Never ask for permission",
3067                                                    None,
3068                                                    "Restore the original behavior in your Agent Panel settings",
3069                                                    window,
3070                                                    cx,
3071                                                )
3072                                            })
3073                                            .on_click(cx.listener(
3074                                                move |this, event, window, cx| {
3075                                                    if let Some(fs) = fs.clone() {
3076                                                        update_settings_file::<AssistantSettings>(
3077                                                            fs.clone(),
3078                                                            cx,
3079                                                            |settings, _| {
3080                                                                settings.set_always_allow_tool_actions(true);
3081                                                            },
3082                                                        );
3083                                                    }
3084                                                    this.handle_allow_tool(
3085                                                        tool_id.clone(),
3086                                                        event,
3087                                                        window,
3088                                                        cx,
3089                                                    )
3090                                                },
3091                                            ))
3092                                        })
3093                                        .child(ui::Divider::vertical())
3094                                        .child({
3095                                            let tool_id = tool_use.id.clone();
3096                                            Button::new("allow-tool-action", "Allow")
3097                                                .label_size(LabelSize::Small)
3098                                                .icon(IconName::Check)
3099                                                .icon_position(IconPosition::Start)
3100                                                .icon_size(IconSize::Small)
3101                                                .icon_color(Color::Success)
3102                                                .on_click(cx.listener(
3103                                                    move |this, event, window, cx| {
3104                                                        this.handle_allow_tool(
3105                                                            tool_id.clone(),
3106                                                            event,
3107                                                            window,
3108                                                            cx,
3109                                                        )
3110                                                    },
3111                                                ))
3112                                        })
3113                                        .child({
3114                                            let tool_id = tool_use.id.clone();
3115                                            let tool_name: Arc<str> = tool_use.name.into();
3116                                            Button::new("deny-tool", "Deny")
3117                                                .label_size(LabelSize::Small)
3118                                                .icon(IconName::Close)
3119                                                .icon_position(IconPosition::Start)
3120                                                .icon_size(IconSize::Small)
3121                                                .icon_color(Color::Error)
3122                                                .on_click(cx.listener(
3123                                                    move |this, event, window, cx| {
3124                                                        this.handle_deny_tool(
3125                                                            tool_id.clone(),
3126                                                            tool_name.clone(),
3127                                                            event,
3128                                                            window,
3129                                                            cx,
3130                                                        )
3131                                                    },
3132                                                ))
3133                                        }),
3134                                ),
3135                        )
3136                    })
3137            }
3138        }).into_any_element()
3139    }
3140
3141    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3142        let project_context = self.thread.read(cx).project_context();
3143        let project_context = project_context.borrow();
3144        let Some(project_context) = project_context.as_ref() else {
3145            return div().into_any();
3146        };
3147
3148        let user_rules_text = if project_context.user_rules.is_empty() {
3149            None
3150        } else if project_context.user_rules.len() == 1 {
3151            let user_rules = &project_context.user_rules[0];
3152
3153            match user_rules.title.as_ref() {
3154                Some(title) => Some(format!("Using \"{title}\" user rule")),
3155                None => Some("Using user rule".into()),
3156            }
3157        } else {
3158            Some(format!(
3159                "Using {} user rules",
3160                project_context.user_rules.len()
3161            ))
3162        };
3163
3164        let first_user_rules_id = project_context
3165            .user_rules
3166            .first()
3167            .map(|user_rules| user_rules.uuid.0);
3168
3169        let rules_files = project_context
3170            .worktrees
3171            .iter()
3172            .filter_map(|worktree| worktree.rules_file.as_ref())
3173            .collect::<Vec<_>>();
3174
3175        let rules_file_text = match rules_files.as_slice() {
3176            &[] => None,
3177            &[rules_file] => Some(format!(
3178                "Using project {:?} file",
3179                rules_file.path_in_worktree
3180            )),
3181            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3182        };
3183
3184        if user_rules_text.is_none() && rules_file_text.is_none() {
3185            return div().into_any();
3186        }
3187
3188        v_flex()
3189            .pt_2()
3190            .px_2p5()
3191            .gap_1()
3192            .when_some(user_rules_text, |parent, user_rules_text| {
3193                parent.child(
3194                    h_flex()
3195                        .w_full()
3196                        .child(
3197                            Icon::new(RULES_ICON)
3198                                .size(IconSize::XSmall)
3199                                .color(Color::Disabled),
3200                        )
3201                        .child(
3202                            Label::new(user_rules_text)
3203                                .size(LabelSize::XSmall)
3204                                .color(Color::Muted)
3205                                .truncate()
3206                                .buffer_font(cx)
3207                                .ml_1p5()
3208                                .mr_0p5(),
3209                        )
3210                        .child(
3211                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3212                                .shape(ui::IconButtonShape::Square)
3213                                .icon_size(IconSize::XSmall)
3214                                .icon_color(Color::Ignored)
3215                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3216                                .tooltip(Tooltip::text("View User Rules"))
3217                                .on_click(move |_event, window, cx| {
3218                                    window.dispatch_action(
3219                                        Box::new(OpenRulesLibrary {
3220                                            prompt_to_select: first_user_rules_id,
3221                                        }),
3222                                        cx,
3223                                    )
3224                                }),
3225                        ),
3226                )
3227            })
3228            .when_some(rules_file_text, |parent, rules_file_text| {
3229                parent.child(
3230                    h_flex()
3231                        .w_full()
3232                        .child(
3233                            Icon::new(IconName::File)
3234                                .size(IconSize::XSmall)
3235                                .color(Color::Disabled),
3236                        )
3237                        .child(
3238                            Label::new(rules_file_text)
3239                                .size(LabelSize::XSmall)
3240                                .color(Color::Muted)
3241                                .buffer_font(cx)
3242                                .ml_1p5()
3243                                .mr_0p5(),
3244                        )
3245                        .child(
3246                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3247                                .shape(ui::IconButtonShape::Square)
3248                                .icon_size(IconSize::XSmall)
3249                                .icon_color(Color::Ignored)
3250                                .on_click(cx.listener(Self::handle_open_rules))
3251                                .tooltip(Tooltip::text("View Rules")),
3252                        ),
3253                )
3254            })
3255            .into_any()
3256    }
3257
3258    fn handle_allow_tool(
3259        &mut self,
3260        tool_use_id: LanguageModelToolUseId,
3261        _: &ClickEvent,
3262        window: &mut Window,
3263        cx: &mut Context<Self>,
3264    ) {
3265        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3266            .thread
3267            .read(cx)
3268            .pending_tool(&tool_use_id)
3269            .map(|tool_use| tool_use.status.clone())
3270        {
3271            self.thread.update(cx, |thread, cx| {
3272                thread.run_tool(
3273                    c.tool_use_id.clone(),
3274                    c.ui_text.clone(),
3275                    c.input.clone(),
3276                    &c.messages,
3277                    c.tool.clone(),
3278                    Some(window.window_handle()),
3279                    cx,
3280                );
3281            });
3282        }
3283    }
3284
3285    fn handle_deny_tool(
3286        &mut self,
3287        tool_use_id: LanguageModelToolUseId,
3288        tool_name: Arc<str>,
3289        _: &ClickEvent,
3290        window: &mut Window,
3291        cx: &mut Context<Self>,
3292    ) {
3293        let window_handle = window.window_handle();
3294        self.thread.update(cx, |thread, cx| {
3295            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3296        });
3297    }
3298
3299    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3300        let project_context = self.thread.read(cx).project_context();
3301        let project_context = project_context.borrow();
3302        let Some(project_context) = project_context.as_ref() else {
3303            return;
3304        };
3305
3306        let project_entry_ids = project_context
3307            .worktrees
3308            .iter()
3309            .flat_map(|worktree| worktree.rules_file.as_ref())
3310            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3311            .collect::<Vec<_>>();
3312
3313        self.workspace
3314            .update(cx, move |workspace, cx| {
3315                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3316                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3317                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3318                let project = workspace.project().read(cx);
3319                let project_paths = project_entry_ids
3320                    .into_iter()
3321                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3322                    .collect::<Vec<_>>();
3323                for project_path in project_paths {
3324                    workspace
3325                        .open_path(project_path, None, true, window, cx)
3326                        .detach_and_log_err(cx);
3327                }
3328            })
3329            .ok();
3330    }
3331
3332    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3333        for window in self.notifications.drain(..) {
3334            window
3335                .update(cx, |_, window, _| {
3336                    window.remove_window();
3337                })
3338                .ok();
3339
3340            self.notification_subscriptions.remove(&window);
3341        }
3342    }
3343
3344    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3345        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3346            return None;
3347        }
3348
3349        Some(
3350            div()
3351                .occlude()
3352                .id("active-thread-scrollbar")
3353                .on_mouse_move(cx.listener(|_, _, _, cx| {
3354                    cx.notify();
3355                    cx.stop_propagation()
3356                }))
3357                .on_hover(|_, _, cx| {
3358                    cx.stop_propagation();
3359                })
3360                .on_any_mouse_down(|_, _, cx| {
3361                    cx.stop_propagation();
3362                })
3363                .on_mouse_up(
3364                    MouseButton::Left,
3365                    cx.listener(|_, _, _, cx| {
3366                        cx.stop_propagation();
3367                    }),
3368                )
3369                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3370                    cx.notify();
3371                }))
3372                .h_full()
3373                .absolute()
3374                .right_1()
3375                .top_1()
3376                .bottom_0()
3377                .w(px(12.))
3378                .cursor_default()
3379                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3380        )
3381    }
3382
3383    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3384        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3385        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3386            cx.background_executor()
3387                .timer(SCROLLBAR_SHOW_INTERVAL)
3388                .await;
3389            thread
3390                .update(cx, |thread, cx| {
3391                    if !thread.scrollbar_state.is_dragging() {
3392                        thread.show_scrollbar = false;
3393                        cx.notify();
3394                    }
3395                })
3396                .log_err();
3397        }))
3398    }
3399}
3400
3401pub enum ActiveThreadEvent {
3402    EditingMessageTokenCountChanged,
3403}
3404
3405impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3406
3407impl Render for ActiveThread {
3408    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3409        v_flex()
3410            .size_full()
3411            .relative()
3412            .on_mouse_move(cx.listener(|this, _, _, cx| {
3413                this.show_scrollbar = true;
3414                this.hide_scrollbar_later(cx);
3415                cx.notify();
3416            }))
3417            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3418                this.show_scrollbar = true;
3419                this.hide_scrollbar_later(cx);
3420                cx.notify();
3421            }))
3422            .on_mouse_up(
3423                MouseButton::Left,
3424                cx.listener(|this, _, _, cx| {
3425                    this.hide_scrollbar_later(cx);
3426                }),
3427            )
3428            .child(list(self.list_state.clone()).flex_grow())
3429            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3430                this.child(scrollbar)
3431            })
3432    }
3433}
3434
3435pub(crate) fn open_context(
3436    context: &AgentContextHandle,
3437    workspace: Entity<Workspace>,
3438    window: &mut Window,
3439    cx: &mut App,
3440) {
3441    match context {
3442        AgentContextHandle::File(file_context) => {
3443            if let Some(project_path) = file_context.project_path(cx) {
3444                workspace.update(cx, |workspace, cx| {
3445                    workspace
3446                        .open_path(project_path, None, true, window, cx)
3447                        .detach_and_log_err(cx);
3448                });
3449            }
3450        }
3451
3452        AgentContextHandle::Directory(directory_context) => {
3453            let entry_id = directory_context.entry_id;
3454            workspace.update(cx, |workspace, cx| {
3455                workspace.project().update(cx, |_project, cx| {
3456                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3457                })
3458            })
3459        }
3460
3461        AgentContextHandle::Symbol(symbol_context) => {
3462            let buffer = symbol_context.buffer.read(cx);
3463            if let Some(project_path) = buffer.project_path(cx) {
3464                let snapshot = buffer.snapshot();
3465                let target_position = symbol_context.range.start.to_point(&snapshot);
3466                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3467                    .detach();
3468            }
3469        }
3470
3471        AgentContextHandle::Selection(selection_context) => {
3472            let buffer = selection_context.buffer.read(cx);
3473            if let Some(project_path) = buffer.project_path(cx) {
3474                let snapshot = buffer.snapshot();
3475                let target_position = selection_context.range.start.to_point(&snapshot);
3476
3477                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3478                    .detach();
3479            }
3480        }
3481
3482        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3483            cx.open_url(&fetched_url_context.url);
3484        }
3485
3486        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3487            if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3488                panel.update(cx, |panel, cx| {
3489                    panel.open_thread(thread_context.thread.clone(), window, cx);
3490                });
3491            }
3492        }),
3493
3494        AgentContextHandle::TextThread(text_thread_context) => {
3495            workspace.update(cx, |workspace, cx| {
3496                if let Some(panel) = workspace.panel::<AssistantPanel>(cx) {
3497                    panel.update(cx, |panel, cx| {
3498                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3499                    });
3500                }
3501            })
3502        }
3503
3504        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3505            Box::new(OpenRulesLibrary {
3506                prompt_to_select: Some(rules_context.prompt_id.0),
3507            }),
3508            cx,
3509        ),
3510
3511        AgentContextHandle::Image(_) => {}
3512    }
3513}
3514
3515fn open_editor_at_position(
3516    project_path: project::ProjectPath,
3517    target_position: Point,
3518    workspace: &Entity<Workspace>,
3519    window: &mut Window,
3520    cx: &mut App,
3521) -> Task<()> {
3522    let open_task = workspace.update(cx, |workspace, cx| {
3523        workspace.open_path(project_path, None, true, window, cx)
3524    });
3525    window.spawn(cx, async move |cx| {
3526        if let Some(active_editor) = open_task
3527            .await
3528            .log_err()
3529            .and_then(|item| item.downcast::<Editor>())
3530        {
3531            active_editor
3532                .downgrade()
3533                .update_in(cx, |editor, window, cx| {
3534                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3535                })
3536                .log_err();
3537        }
3538    })
3539}
3540
3541#[cfg(test)]
3542mod tests {
3543    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3544    use editor::EditorSettings;
3545    use fs::FakeFs;
3546    use gpui::{TestAppContext, VisualTestContext};
3547    use language_model::{LanguageModel, fake_provider::FakeLanguageModel};
3548    use project::Project;
3549    use prompt_store::PromptBuilder;
3550    use serde_json::json;
3551    use settings::SettingsStore;
3552    use util::path;
3553
3554    use crate::{ContextLoadResult, thread_store};
3555
3556    use super::*;
3557
3558    #[gpui::test]
3559    async fn test_current_completion_cancelled_when_message_edited(cx: &mut TestAppContext) {
3560        init_test_settings(cx);
3561
3562        let project = create_test_project(
3563            cx,
3564            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3565        )
3566        .await;
3567
3568        let (cx, active_thread, thread, model) = setup_test_environment(cx, project.clone()).await;
3569
3570        // Insert user message without any context (empty context vector)
3571        let message = thread.update(cx, |thread, cx| {
3572            let message_id = thread.insert_user_message(
3573                "What is the best way to learn Rust?",
3574                ContextLoadResult::default(),
3575                None,
3576                vec![],
3577                cx,
3578            );
3579            thread
3580                .message(message_id)
3581                .expect("message should exist")
3582                .clone()
3583        });
3584
3585        // Stream response to user message
3586        thread.update(cx, |thread, cx| {
3587            let request = thread.to_completion_request(model.clone(), cx);
3588            thread.stream_completion(request, model, cx.active_window(), cx)
3589        });
3590        let generating = thread.update(cx, |thread, _cx| thread.is_generating());
3591        assert!(generating, "There should be one pending completion");
3592
3593        // Edit the previous message
3594        active_thread.update_in(cx, |active_thread, window, cx| {
3595            active_thread.start_editing_message(message.id, &message.segments, window, cx);
3596        });
3597
3598        // Check that the stream was cancelled
3599        let generating = thread.update(cx, |thread, _cx| thread.is_generating());
3600        assert!(!generating, "The completion should have been cancelled");
3601    }
3602
3603    fn init_test_settings(cx: &mut TestAppContext) {
3604        cx.update(|cx| {
3605            let settings_store = SettingsStore::test(cx);
3606            cx.set_global(settings_store);
3607            language::init(cx);
3608            Project::init_settings(cx);
3609            AssistantSettings::register(cx);
3610            prompt_store::init(cx);
3611            thread_store::init(cx);
3612            workspace::init_settings(cx);
3613            language_model::init_settings(cx);
3614            ThemeSettings::register(cx);
3615            EditorSettings::register(cx);
3616            ToolRegistry::default_global(cx);
3617        });
3618    }
3619
3620    // Helper to create a test project with test files
3621    async fn create_test_project(
3622        cx: &mut TestAppContext,
3623        files: serde_json::Value,
3624    ) -> Entity<Project> {
3625        let fs = FakeFs::new(cx.executor());
3626        fs.insert_tree(path!("/test"), files).await;
3627        Project::test(fs, [path!("/test").as_ref()], cx).await
3628    }
3629
3630    async fn setup_test_environment(
3631        cx: &mut TestAppContext,
3632        project: Entity<Project>,
3633    ) -> (
3634        &mut VisualTestContext,
3635        Entity<ActiveThread>,
3636        Entity<Thread>,
3637        Arc<dyn LanguageModel>,
3638    ) {
3639        let (workspace, cx) =
3640            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
3641
3642        let prompt_builder = Arc::new(PromptBuilder::new(None).unwrap());
3643        let thread_store = cx
3644            .update(|_, cx| {
3645                ThreadStore::load(
3646                    project.clone(),
3647                    cx.new(|_| ToolWorkingSet::default()),
3648                    None,
3649                    prompt_builder.clone(),
3650                    cx,
3651                )
3652            })
3653            .await
3654            .unwrap();
3655        let text_thread_store = cx
3656            .update(|_, cx| {
3657                TextThreadStore::new(project.clone(), prompt_builder, Default::default(), cx)
3658            })
3659            .await
3660            .unwrap();
3661
3662        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
3663        let context_store = cx.new(|_cx| ContextStore::new(project.downgrade(), None));
3664
3665        let model = FakeLanguageModel::default();
3666        let model: Arc<dyn LanguageModel> = Arc::new(model);
3667
3668        let language_registry = LanguageRegistry::new(cx.executor());
3669        let language_registry = Arc::new(language_registry);
3670
3671        let active_thread = cx.update(|window, cx| {
3672            cx.new(|cx| {
3673                ActiveThread::new(
3674                    thread.clone(),
3675                    thread_store.clone(),
3676                    text_thread_store.clone(),
3677                    context_store.clone(),
3678                    language_registry.clone(),
3679                    workspace.downgrade(),
3680                    window,
3681                    cx,
3682                )
3683            })
3684        });
3685
3686        (cx, active_thread, thread, model)
3687    }
3688}