active_thread.rs

   1use crate::context_picker::{ContextPicker, MentionLink};
   2use crate::context_strip::{ContextStrip, ContextStripEvent, SuggestContextKind};
   3use crate::message_editor::{extract_message_creases, insert_message_creases};
   4use crate::ui::{
   5    AddedContext, AgentNotification, AgentNotificationEvent, AnimatedLabel, ContextPill,
   6};
   7use crate::{AgentPanel, ModelUsageContext};
   8use agent::thread::{ToolUseSegment, UserMessageParams};
   9use agent::{
  10    ContextStore, LastRestoreCheckpoint, MessageCrease, MessageId, MessageSegment, TextThreadStore,
  11    ThreadError, ThreadEvent, ThreadFeedback, ThreadStore, ThreadSummary, ZedAgentThread,
  12    context::{self, AgentContextHandle, RULES_ICON},
  13    thread::{PendingToolUseStatus, ToolUse},
  14    thread_store::RulesLoadingError,
  15};
  16use agent_settings::{AgentSettings, NotifyWhenAgentWaiting};
  17use anyhow::Context as _;
  18use assistant_tool::{AnyToolCard, ToolUseStatus, ToolWorkingSet};
  19use audio::{Audio, Sound};
  20use collections::{HashMap, HashSet};
  21use editor::actions::{MoveUp, Paste};
  22use editor::scroll::Autoscroll;
  23use editor::{Editor, EditorElement, EditorEvent, EditorStyle, MultiBuffer, SelectionEffects};
  24use gpui::{
  25    AbsoluteLength, Animation, AnimationExt, AnyElement, App, ClickEvent, ClipboardEntry,
  26    ClipboardItem, DefiniteLength, EdgesRefinement, Empty, Entity, EventEmitter, Focusable, Hsla,
  27    ListAlignment, ListOffset, ListState, MouseButton, PlatformDisplay, ScrollHandle, Stateful,
  28    StyleRefinement, Subscription, Task, TextStyle, TextStyleRefinement, Transformation,
  29    UnderlineStyle, WeakEntity, WindowHandle, linear_color_stop, linear_gradient, list, percentage,
  30    pulsating_between,
  31};
  32use language::{Buffer, Language, LanguageRegistry};
  33use language_model::{
  34    LanguageModelRequestMessage, LanguageModelToolResultContent, LanguageModelToolUseId,
  35    MessageContent, Role, StopReason,
  36};
  37use markdown::parser::{CodeBlockKind, CodeBlockMetadata};
  38use markdown::{
  39    HeadingLevelStyles, Markdown, MarkdownElement, MarkdownStyle, ParsedMarkdown, PathWithRange,
  40};
  41use project::{Project, ProjectEntryId, ProjectItem as _};
  42use rope::Point;
  43use settings::{Settings as _, SettingsStore, update_settings_file};
  44use std::ffi::OsStr;
  45use std::path::Path;
  46use std::rc::Rc;
  47use std::sync::Arc;
  48use std::time::Duration;
  49use text::ToPoint;
  50use theme::ThemeSettings;
  51use ui::{
  52    Disclosure, KeyBinding, PopoverMenuHandle, Scrollbar, ScrollbarState, TextSize, Tooltip,
  53    prelude::*,
  54};
  55use util::markdown::MarkdownCodeBlock;
  56use util::{ResultExt as _, debug_panic};
  57use workspace::{CollaboratorId, Workspace};
  58use zed_actions::assistant::OpenRulesLibrary;
  59
  60const CODEBLOCK_CONTAINER_GROUP: &str = "codeblock_container";
  61const EDIT_PREVIOUS_MESSAGE_MIN_LINES: usize = 1;
  62
  63pub struct ActiveThread {
  64    context_store: Entity<ContextStore>,
  65    language_registry: Arc<LanguageRegistry>,
  66    thread_store: Entity<ThreadStore>,
  67    text_thread_store: Entity<TextThreadStore>,
  68    agent: Entity<ZedAgentThread>,
  69    // thread: Entity<Thread>,
  70    workspace: WeakEntity<Workspace>,
  71    project: Entity<Project>,
  72    save_thread_task: Option<Task<()>>,
  73    messages: Vec<MessageId>,
  74    list_state: ListState,
  75    scrollbar_state: ScrollbarState,
  76    show_scrollbar: bool,
  77    hide_scrollbar_task: Option<Task<()>>,
  78    rendered_messages_by_id: HashMap<MessageId, RenderedMessage>,
  79    rendered_tool_uses: HashMap<LanguageModelToolUseId, RenderedToolUse>,
  80    editing_message: Option<(MessageId, EditingMessageState)>,
  81    expanded_tool_uses: HashMap<LanguageModelToolUseId, bool>,
  82    expanded_thinking_segments: HashMap<(MessageId, usize), bool>,
  83    expanded_code_blocks: HashMap<(MessageId, usize), bool>,
  84    last_error: Option<ThreadError>,
  85    notifications: Vec<WindowHandle<AgentNotification>>,
  86    copied_code_block_ids: HashSet<(MessageId, usize)>,
  87    _subscriptions: Vec<Subscription>,
  88    notification_subscriptions: HashMap<WindowHandle<AgentNotification>, Vec<Subscription>>,
  89    open_feedback_editors: HashMap<MessageId, Entity<Editor>>,
  90    _load_edited_message_context_task: Option<Task<()>>,
  91}
  92
  93struct RenderedMessage {
  94    language_registry: Arc<LanguageRegistry>,
  95    segments: Vec<RenderedMessageSegment>,
  96}
  97
  98#[derive(Clone, Debug)]
  99struct RenderedToolUse {
 100    label: Entity<Markdown>,
 101    input: Entity<Markdown>,
 102    output: Entity<Markdown>,
 103}
 104
 105impl RenderedMessage {
 106    fn from_segments(
 107        segments: &[MessageSegment],
 108        language_registry: Arc<LanguageRegistry>,
 109        cx: &mut App,
 110    ) -> Self {
 111        let mut this = Self {
 112            language_registry,
 113            segments: Vec::with_capacity(segments.len()),
 114        };
 115        for segment in segments {
 116            this.push_segment(segment, cx);
 117        }
 118        this
 119    }
 120
 121    fn append_thinking(&mut self, text: &String, cx: &mut App) {
 122        if let Some(RenderedMessageSegment::Thinking {
 123            content,
 124            scroll_handle,
 125        }) = self.segments.last_mut()
 126        {
 127            content.update(cx, |markdown, cx| {
 128                markdown.append(text, cx);
 129            });
 130            scroll_handle.scroll_to_bottom();
 131        } else {
 132            self.segments.push(RenderedMessageSegment::Thinking {
 133                content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 134                scroll_handle: ScrollHandle::default(),
 135            });
 136        }
 137    }
 138
 139    fn append_text(&mut self, text: &String, cx: &mut App) {
 140        if let Some(RenderedMessageSegment::Text(markdown)) = self.segments.last_mut() {
 141            markdown.update(cx, |markdown, cx| markdown.append(text, cx));
 142        } else {
 143            self.segments
 144                .push(RenderedMessageSegment::Text(parse_markdown(
 145                    SharedString::from(text),
 146                    self.language_registry.clone(),
 147                    cx,
 148                )));
 149        }
 150    }
 151
 152    fn push_segment(&mut self, segment: &MessageSegment, cx: &mut App) {
 153        match segment {
 154            MessageSegment::Thinking { text, .. } => {
 155                self.segments.push(RenderedMessageSegment::Thinking {
 156                    content: parse_markdown(text.into(), self.language_registry.clone(), cx),
 157                    scroll_handle: ScrollHandle::default(),
 158                })
 159            }
 160            MessageSegment::Text(text) => {
 161                self.segments
 162                    .push(RenderedMessageSegment::Text(parse_markdown(
 163                        text.into(),
 164                        self.language_registry.clone(),
 165                        cx,
 166                    )))
 167            }
 168            MessageSegment::ToolUse { .. } => {
 169                todo!()
 170            }
 171        };
 172    }
 173
 174    fn update_tool_call(
 175        &mut self,
 176        segment_index: usize,
 177        segment: &ToolUseSegment,
 178        _tools: &Entity<ToolWorkingSet>,
 179        cx: &mut App,
 180    ) {
 181        if let Some(card) = segment.card.clone() {
 182            if self.segments.len() < segment_index {
 183                self.segments.push(RenderedMessageSegment::ToolUseCard(
 184                    segment.status.clone(),
 185                    card,
 186                ))
 187            }
 188            return;
 189        }
 190        if self.segments.len() <= segment_index {
 191            self.segments
 192                .push(RenderedMessageSegment::ToolUseMarkdown(RenderedToolUse {
 193                    label: cx.new(|cx| {
 194                        Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 195                    }),
 196                    input: cx.new(|cx| {
 197                        Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 198                    }),
 199                    output: cx.new(|cx| {
 200                        Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
 201                    }),
 202                }))
 203        }
 204
 205        dbg!(&self.segments);
 206
 207        let RenderedMessageSegment::ToolUseMarkdown(rendered) = &self.segments[segment_index]
 208        else {
 209            panic!()
 210        };
 211
 212        // todo!()
 213        // let ui_label = if let Some(tool) = tools.read(cx).tool(segment.name, cx) {
 214        //     if segment.is_input_complete {
 215        //         tool.ui_text(segment.input).into()
 216        //     } else {
 217        //         tool.still_streaming_ui_text(segment.input).into()
 218        //     }
 219        // } else {
 220        //     format!("Unknown tool {:?}", segment.name).into()
 221        // };
 222
 223        rendered.label.update(cx, |this, cx| {
 224            this.replace(segment.name.clone(), cx);
 225        });
 226        rendered.input.update(cx, |this, cx| {
 227            this.replace(
 228                MarkdownCodeBlock {
 229                    tag: "json",
 230                    text: &serde_json::to_string_pretty(&segment.input).unwrap_or_default(),
 231                }
 232                .to_string(),
 233                cx,
 234            );
 235        });
 236
 237        rendered.output.update(cx, |_this, _cx| {
 238            match &segment.output {
 239                Some(Ok(LanguageModelToolResultContent::Text(_text))) => {
 240                    // todo!
 241                }
 242                Some(Ok(LanguageModelToolResultContent::Image(_image))) => {
 243                    // todo!
 244                }
 245                Some(Err(_error)) => {
 246                    // todo!
 247                }
 248                None => {
 249                    // todo!
 250                }
 251            }
 252        });
 253    }
 254}
 255
 256#[derive(Debug)]
 257enum RenderedMessageSegment {
 258    Thinking {
 259        content: Entity<Markdown>,
 260        scroll_handle: ScrollHandle,
 261    },
 262    Text(Entity<Markdown>),
 263    ToolUseCard(ToolUseStatus, AnyToolCard),
 264    ToolUseMarkdown(RenderedToolUse),
 265}
 266
 267fn parse_markdown(
 268    text: SharedString,
 269    language_registry: Arc<LanguageRegistry>,
 270    cx: &mut App,
 271) -> Entity<Markdown> {
 272    cx.new(|cx| Markdown::new(text, Some(language_registry), None, cx))
 273}
 274
 275pub(crate) fn default_markdown_style(window: &Window, cx: &App) -> MarkdownStyle {
 276    let theme_settings = ThemeSettings::get_global(cx);
 277    let colors = cx.theme().colors();
 278    let ui_font_size = TextSize::Default.rems(cx);
 279    let buffer_font_size = TextSize::Small.rems(cx);
 280    let mut text_style = window.text_style();
 281    let line_height = buffer_font_size * 1.75;
 282
 283    text_style.refine(&TextStyleRefinement {
 284        font_family: Some(theme_settings.ui_font.family.clone()),
 285        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 286        font_features: Some(theme_settings.ui_font.features.clone()),
 287        font_size: Some(ui_font_size.into()),
 288        line_height: Some(line_height.into()),
 289        color: Some(cx.theme().colors().text),
 290        ..Default::default()
 291    });
 292
 293    MarkdownStyle {
 294        base_text_style: text_style.clone(),
 295        syntax: cx.theme().syntax().clone(),
 296        selection_background_color: cx.theme().colors().element_selection_background,
 297        code_block_overflow_x_scroll: true,
 298        table_overflow_x_scroll: true,
 299        heading_level_styles: Some(HeadingLevelStyles {
 300            h1: Some(TextStyleRefinement {
 301                font_size: Some(rems(1.15).into()),
 302                ..Default::default()
 303            }),
 304            h2: Some(TextStyleRefinement {
 305                font_size: Some(rems(1.1).into()),
 306                ..Default::default()
 307            }),
 308            h3: Some(TextStyleRefinement {
 309                font_size: Some(rems(1.05).into()),
 310                ..Default::default()
 311            }),
 312            h4: Some(TextStyleRefinement {
 313                font_size: Some(rems(1.).into()),
 314                ..Default::default()
 315            }),
 316            h5: Some(TextStyleRefinement {
 317                font_size: Some(rems(0.95).into()),
 318                ..Default::default()
 319            }),
 320            h6: Some(TextStyleRefinement {
 321                font_size: Some(rems(0.875).into()),
 322                ..Default::default()
 323            }),
 324        }),
 325        code_block: StyleRefinement {
 326            padding: EdgesRefinement {
 327                top: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 328                left: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 329                right: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 330                bottom: Some(DefiniteLength::Absolute(AbsoluteLength::Pixels(Pixels(8.)))),
 331            },
 332            background: Some(colors.editor_background.into()),
 333            text: Some(TextStyleRefinement {
 334                font_family: Some(theme_settings.buffer_font.family.clone()),
 335                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 336                font_features: Some(theme_settings.buffer_font.features.clone()),
 337                font_size: Some(buffer_font_size.into()),
 338                ..Default::default()
 339            }),
 340            ..Default::default()
 341        },
 342        inline_code: TextStyleRefinement {
 343            font_family: Some(theme_settings.buffer_font.family.clone()),
 344            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 345            font_features: Some(theme_settings.buffer_font.features.clone()),
 346            font_size: Some(buffer_font_size.into()),
 347            background_color: Some(colors.editor_foreground.opacity(0.08)),
 348            ..Default::default()
 349        },
 350        link: TextStyleRefinement {
 351            background_color: Some(colors.editor_foreground.opacity(0.025)),
 352            underline: Some(UnderlineStyle {
 353                color: Some(colors.text_accent.opacity(0.5)),
 354                thickness: px(1.),
 355                ..Default::default()
 356            }),
 357            ..Default::default()
 358        },
 359        link_callback: Some(Rc::new(move |url, cx| {
 360            if MentionLink::is_valid(url) {
 361                let colors = cx.theme().colors();
 362                Some(TextStyleRefinement {
 363                    background_color: Some(colors.element_background),
 364                    ..Default::default()
 365                })
 366            } else {
 367                None
 368            }
 369        })),
 370        ..Default::default()
 371    }
 372}
 373
 374fn tool_use_markdown_style(window: &Window, cx: &mut App) -> MarkdownStyle {
 375    let theme_settings = ThemeSettings::get_global(cx);
 376    let colors = cx.theme().colors();
 377    let ui_font_size = TextSize::Default.rems(cx);
 378    let buffer_font_size = TextSize::Small.rems(cx);
 379    let mut text_style = window.text_style();
 380
 381    text_style.refine(&TextStyleRefinement {
 382        font_family: Some(theme_settings.ui_font.family.clone()),
 383        font_fallbacks: theme_settings.ui_font.fallbacks.clone(),
 384        font_features: Some(theme_settings.ui_font.features.clone()),
 385        font_size: Some(ui_font_size.into()),
 386        color: Some(cx.theme().colors().text),
 387        ..Default::default()
 388    });
 389
 390    MarkdownStyle {
 391        base_text_style: text_style,
 392        syntax: cx.theme().syntax().clone(),
 393        selection_background_color: cx.theme().colors().element_selection_background,
 394        code_block_overflow_x_scroll: false,
 395        code_block: StyleRefinement {
 396            margin: EdgesRefinement::default(),
 397            padding: EdgesRefinement::default(),
 398            background: Some(colors.editor_background.into()),
 399            border_color: None,
 400            border_widths: EdgesRefinement::default(),
 401            text: Some(TextStyleRefinement {
 402                font_family: Some(theme_settings.buffer_font.family.clone()),
 403                font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 404                font_features: Some(theme_settings.buffer_font.features.clone()),
 405                font_size: Some(buffer_font_size.into()),
 406                ..Default::default()
 407            }),
 408            ..Default::default()
 409        },
 410        inline_code: TextStyleRefinement {
 411            font_family: Some(theme_settings.buffer_font.family.clone()),
 412            font_fallbacks: theme_settings.buffer_font.fallbacks.clone(),
 413            font_features: Some(theme_settings.buffer_font.features.clone()),
 414            font_size: Some(TextSize::XSmall.rems(cx).into()),
 415            ..Default::default()
 416        },
 417        heading: StyleRefinement {
 418            text: Some(TextStyleRefinement {
 419                font_size: Some(ui_font_size.into()),
 420                ..Default::default()
 421            }),
 422            ..Default::default()
 423        },
 424        ..Default::default()
 425    }
 426}
 427
 428fn render_markdown_code_block(
 429    message_id: MessageId,
 430    ix: usize,
 431    kind: &CodeBlockKind,
 432    parsed_markdown: &ParsedMarkdown,
 433    metadata: CodeBlockMetadata,
 434    active_thread: Entity<ActiveThread>,
 435    workspace: WeakEntity<Workspace>,
 436    _window: &Window,
 437    cx: &App,
 438) -> Div {
 439    let label_size = rems(0.8125);
 440
 441    let label = match kind {
 442        CodeBlockKind::Indented => None,
 443        CodeBlockKind::Fenced => Some(
 444            h_flex()
 445                .px_1()
 446                .gap_1()
 447                .child(
 448                    Icon::new(IconName::Code)
 449                        .color(Color::Muted)
 450                        .size(IconSize::XSmall),
 451                )
 452                .child(div().text_size(label_size).child("Plain Text"))
 453                .into_any_element(),
 454        ),
 455        CodeBlockKind::FencedLang(raw_language_name) => Some(render_code_language(
 456            parsed_markdown.languages_by_name.get(raw_language_name),
 457            raw_language_name.clone(),
 458            cx,
 459        )),
 460        CodeBlockKind::FencedSrc(path_range) => path_range.path.file_name().map(|file_name| {
 461            // We tell the model to use /dev/null for the path instead of using ```language
 462            // because otherwise it consistently fails to use code citations.
 463            if path_range.path.starts_with("/dev/null") {
 464                let ext = path_range
 465                    .path
 466                    .extension()
 467                    .and_then(OsStr::to_str)
 468                    .map(|str| SharedString::new(str.to_string()))
 469                    .unwrap_or_default();
 470
 471                render_code_language(
 472                    parsed_markdown
 473                        .languages_by_path
 474                        .get(&path_range.path)
 475                        .or_else(|| parsed_markdown.languages_by_name.get(&ext)),
 476                    ext,
 477                    cx,
 478                )
 479            } else {
 480                let content = if let Some(parent) = path_range.path.parent() {
 481                    let file_name = file_name.to_string_lossy().to_string();
 482                    let path = parent.to_string_lossy().to_string();
 483                    let path_and_file = format!("{}/{}", path, file_name);
 484
 485                    h_flex()
 486                        .id(("code-block-header-label", ix))
 487                        .ml_1()
 488                        .gap_1()
 489                        .child(div().text_size(label_size).child(file_name))
 490                        .child(Label::new(path).color(Color::Muted).size(LabelSize::Small))
 491                        .tooltip(move |window, cx| {
 492                            Tooltip::with_meta(
 493                                "Jump to File",
 494                                None,
 495                                path_and_file.clone(),
 496                                window,
 497                                cx,
 498                            )
 499                        })
 500                        .into_any_element()
 501                } else {
 502                    div()
 503                        .ml_1()
 504                        .text_size(label_size)
 505                        .child(path_range.path.to_string_lossy().to_string())
 506                        .into_any_element()
 507                };
 508
 509                h_flex()
 510                    .id(("code-block-header-button", ix))
 511                    .w_full()
 512                    .max_w_full()
 513                    .px_1()
 514                    .gap_0p5()
 515                    .cursor_pointer()
 516                    .rounded_sm()
 517                    .hover(|item| item.bg(cx.theme().colors().element_hover.opacity(0.5)))
 518                    .child(
 519                        h_flex()
 520                            .gap_0p5()
 521                            .children(
 522                                file_icons::FileIcons::get_icon(&path_range.path, cx)
 523                                    .map(Icon::from_path)
 524                                    .map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)),
 525                            )
 526                            .child(content)
 527                            .child(
 528                                Icon::new(IconName::ArrowUpRight)
 529                                    .size(IconSize::XSmall)
 530                                    .color(Color::Ignored),
 531                            ),
 532                    )
 533                    .on_click({
 534                        let path_range = path_range.clone();
 535                        move |_, window, cx| {
 536                            workspace
 537                                .update(cx, |workspace, cx| {
 538                                    open_path(&path_range, window, workspace, cx)
 539                                })
 540                                .ok();
 541                        }
 542                    })
 543                    .into_any_element()
 544            }
 545        }),
 546    };
 547
 548    let codeblock_was_copied = active_thread
 549        .read(cx)
 550        .copied_code_block_ids
 551        .contains(&(message_id, ix));
 552
 553    let is_expanded = active_thread.read(cx).is_codeblock_expanded(message_id, ix);
 554
 555    let codeblock_header_bg = cx
 556        .theme()
 557        .colors()
 558        .element_background
 559        .blend(cx.theme().colors().editor_foreground.opacity(0.025));
 560
 561    let control_buttons = h_flex()
 562        .visible_on_hover(CODEBLOCK_CONTAINER_GROUP)
 563        .absolute()
 564        .top_0()
 565        .right_0()
 566        .h_full()
 567        .bg(codeblock_header_bg)
 568        .rounded_tr_md()
 569        .px_1()
 570        .gap_1()
 571        .child(
 572            IconButton::new(
 573                ("copy-markdown-code", ix),
 574                if codeblock_was_copied {
 575                    IconName::Check
 576                } else {
 577                    IconName::Copy
 578                },
 579            )
 580            .icon_color(Color::Muted)
 581            .shape(ui::IconButtonShape::Square)
 582            .tooltip(Tooltip::text("Copy Code"))
 583            .on_click({
 584                let active_thread = active_thread.clone();
 585                let parsed_markdown = parsed_markdown.clone();
 586                let code_block_range = metadata.content_range.clone();
 587                move |_event, _window, cx| {
 588                    active_thread.update(cx, |this, cx| {
 589                        this.copied_code_block_ids.insert((message_id, ix));
 590
 591                        let code = parsed_markdown.source()[code_block_range.clone()].to_string();
 592                        cx.write_to_clipboard(ClipboardItem::new_string(code));
 593
 594                        cx.spawn(async move |this, cx| {
 595                            cx.background_executor().timer(Duration::from_secs(2)).await;
 596
 597                            cx.update(|cx| {
 598                                this.update(cx, |this, cx| {
 599                                    this.copied_code_block_ids.remove(&(message_id, ix));
 600                                    cx.notify();
 601                                })
 602                            })
 603                            .ok();
 604                        })
 605                        .detach();
 606                    });
 607                }
 608            }),
 609        )
 610        .child(
 611            IconButton::new(
 612                ("expand-collapse-code", ix),
 613                if is_expanded {
 614                    IconName::ChevronUp
 615                } else {
 616                    IconName::ChevronDown
 617                },
 618            )
 619            .icon_color(Color::Muted)
 620            .shape(ui::IconButtonShape::Square)
 621            .tooltip(Tooltip::text(if is_expanded {
 622                "Collapse Code"
 623            } else {
 624                "Expand Code"
 625            }))
 626            .on_click({
 627                let active_thread = active_thread.clone();
 628                move |_event, _window, cx| {
 629                    active_thread.update(cx, |this, cx| {
 630                        this.toggle_codeblock_expanded(message_id, ix);
 631                        cx.notify();
 632                    });
 633                }
 634            }),
 635        );
 636
 637    let codeblock_header = h_flex()
 638        .relative()
 639        .p_1()
 640        .gap_1()
 641        .justify_between()
 642        .bg(codeblock_header_bg)
 643        .map(|this| {
 644            if !is_expanded {
 645                this.rounded_md()
 646            } else {
 647                this.rounded_t_md()
 648                    .border_b_1()
 649                    .border_color(cx.theme().colors().border.opacity(0.6))
 650            }
 651        })
 652        .children(label)
 653        .child(control_buttons);
 654
 655    v_flex()
 656        .group(CODEBLOCK_CONTAINER_GROUP)
 657        .my_2()
 658        .overflow_hidden()
 659        .rounded_md()
 660        .border_1()
 661        .border_color(cx.theme().colors().border.opacity(0.6))
 662        .bg(cx.theme().colors().editor_background)
 663        .child(codeblock_header)
 664        .when(!is_expanded, |this| this.h(rems_from_px(31.)))
 665}
 666
 667fn open_path(
 668    path_range: &PathWithRange,
 669    window: &mut Window,
 670    workspace: &mut Workspace,
 671    cx: &mut Context<'_, Workspace>,
 672) {
 673    let Some(project_path) = workspace
 674        .project()
 675        .read(cx)
 676        .find_project_path(&path_range.path, cx)
 677    else {
 678        return; // TODO instead of just bailing out, open that path in a buffer.
 679    };
 680
 681    let Some(target) = path_range.range.as_ref().map(|range| {
 682        Point::new(
 683            // Line number is 1-based
 684            range.start.line.saturating_sub(1),
 685            range.start.col.unwrap_or(0),
 686        )
 687    }) else {
 688        return;
 689    };
 690    let open_task = workspace.open_path(project_path, None, true, window, cx);
 691    window
 692        .spawn(cx, async move |cx| {
 693            let item = open_task.await?;
 694            if let Some(active_editor) = item.downcast::<Editor>() {
 695                active_editor
 696                    .update_in(cx, |editor, window, cx| {
 697                        editor.go_to_singleton_buffer_point(target, window, cx);
 698                    })
 699                    .ok();
 700            }
 701            anyhow::Ok(())
 702        })
 703        .detach_and_log_err(cx);
 704}
 705
 706fn render_code_language(
 707    language: Option<&Arc<Language>>,
 708    name_fallback: SharedString,
 709    cx: &App,
 710) -> AnyElement {
 711    let icon_path = language.and_then(|language| {
 712        language
 713            .config()
 714            .matcher
 715            .path_suffixes
 716            .iter()
 717            .find_map(|extension| file_icons::FileIcons::get_icon(Path::new(extension), cx))
 718            .map(Icon::from_path)
 719    });
 720
 721    let language_label = language
 722        .map(|language| language.name().into())
 723        .unwrap_or(name_fallback);
 724
 725    let label_size = rems(0.8125);
 726
 727    h_flex()
 728        .px_1()
 729        .gap_1p5()
 730        .children(icon_path.map(|icon| icon.color(Color::Muted).size(IconSize::XSmall)))
 731        .child(div().text_size(label_size).child(language_label))
 732        .into_any_element()
 733}
 734
 735fn open_markdown_link(
 736    text: SharedString,
 737    workspace: WeakEntity<Workspace>,
 738    window: &mut Window,
 739    cx: &mut App,
 740) {
 741    let Some(workspace) = workspace.upgrade() else {
 742        cx.open_url(&text);
 743        return;
 744    };
 745
 746    match MentionLink::try_parse(&text, &workspace, cx) {
 747        Some(MentionLink::File(path, entry)) => workspace.update(cx, |workspace, cx| {
 748            if entry.is_dir() {
 749                workspace.project().update(cx, |_, cx| {
 750                    cx.emit(project::Event::RevealInProjectPanel(entry.id));
 751                })
 752            } else {
 753                workspace
 754                    .open_path(path, None, true, window, cx)
 755                    .detach_and_log_err(cx);
 756            }
 757        }),
 758        Some(MentionLink::Symbol(path, symbol_name)) => {
 759            let open_task = workspace.update(cx, |workspace, cx| {
 760                workspace.open_path(path, None, true, window, cx)
 761            });
 762            window
 763                .spawn(cx, async move |cx| {
 764                    let active_editor = open_task
 765                        .await?
 766                        .downcast::<Editor>()
 767                        .context("Item is not an editor")?;
 768                    active_editor.update_in(cx, |editor, window, cx| {
 769                        let symbol_range = editor
 770                            .buffer()
 771                            .read(cx)
 772                            .snapshot(cx)
 773                            .outline(None)
 774                            .and_then(|outline| {
 775                                outline
 776                                    .find_most_similar(&symbol_name)
 777                                    .map(|(_, item)| item.range.clone())
 778                            })
 779                            .context("Could not find matching symbol")?;
 780
 781                        editor.change_selections(
 782                            SelectionEffects::scroll(Autoscroll::center()),
 783                            window,
 784                            cx,
 785                            |s| s.select_anchor_ranges([symbol_range.start..symbol_range.start]),
 786                        );
 787                        anyhow::Ok(())
 788                    })
 789                })
 790                .detach_and_log_err(cx);
 791        }
 792        Some(MentionLink::Selection(path, line_range)) => {
 793            let open_task = workspace.update(cx, |workspace, cx| {
 794                workspace.open_path(path, None, true, window, cx)
 795            });
 796            window
 797                .spawn(cx, async move |cx| {
 798                    let active_editor = open_task
 799                        .await?
 800                        .downcast::<Editor>()
 801                        .context("Item is not an editor")?;
 802                    active_editor.update_in(cx, |editor, window, cx| {
 803                        editor.change_selections(
 804                            SelectionEffects::scroll(Autoscroll::center()),
 805                            window,
 806                            cx,
 807                            |s| {
 808                                s.select_ranges([Point::new(line_range.start as u32, 0)
 809                                    ..Point::new(line_range.start as u32, 0)])
 810                            },
 811                        );
 812                        anyhow::Ok(())
 813                    })
 814                })
 815                .detach_and_log_err(cx);
 816        }
 817        Some(MentionLink::Thread(thread_id)) => workspace.update(cx, |workspace, cx| {
 818            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 819                panel.update(cx, |panel, cx| {
 820                    panel
 821                        .open_thread_by_id(&thread_id, window, cx)
 822                        .detach_and_log_err(cx)
 823                });
 824            }
 825        }),
 826        Some(MentionLink::TextThread(path)) => workspace.update(cx, |workspace, cx| {
 827            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
 828                panel.update(cx, |panel, cx| {
 829                    panel
 830                        .open_saved_prompt_editor(path, window, cx)
 831                        .detach_and_log_err(cx);
 832                });
 833            }
 834        }),
 835        Some(MentionLink::Fetch(url)) => cx.open_url(&url),
 836        Some(MentionLink::Rule(prompt_id)) => window.dispatch_action(
 837            Box::new(OpenRulesLibrary {
 838                prompt_to_select: Some(prompt_id.0),
 839            }),
 840            cx,
 841        ),
 842        None => cx.open_url(&text),
 843    }
 844}
 845
 846struct EditingMessageState {
 847    editor: Entity<Editor>,
 848    context_strip: Entity<ContextStrip>,
 849    context_picker_menu_handle: PopoverMenuHandle<ContextPicker>,
 850    last_estimated_token_count: Option<u64>,
 851    _subscriptions: [Subscription; 2],
 852    _update_token_count_task: Option<Task<()>>,
 853}
 854
 855impl ActiveThread {
 856    pub fn new(
 857        agent: Entity<ZedAgentThread>,
 858        thread_store: Entity<ThreadStore>,
 859        text_thread_store: Entity<TextThreadStore>,
 860        context_store: Entity<ContextStore>,
 861        language_registry: Arc<LanguageRegistry>,
 862        workspace: WeakEntity<Workspace>,
 863        window: &mut Window,
 864        cx: &mut Context<Self>,
 865    ) -> Self {
 866        let subscriptions = vec![
 867            cx.observe(&agent, |_, _, cx| cx.notify()),
 868            cx.subscribe_in(&agent, window, Self::handle_thread_event),
 869            cx.subscribe(&thread_store, Self::handle_rules_loading_error),
 870            cx.observe_global::<SettingsStore>(|_, cx| cx.notify()),
 871        ];
 872
 873        let list_state = ListState::new(0, ListAlignment::Bottom, px(2048.), {
 874            let this = cx.entity().downgrade();
 875            move |ix, window: &mut Window, cx: &mut App| {
 876                this.update(cx, |this, cx| this.render_message(ix, window, cx))
 877                    .unwrap()
 878            }
 879        });
 880        let project = agent.read(cx).project().clone();
 881        let mut this = Self {
 882            language_registry,
 883            thread_store,
 884            text_thread_store,
 885            context_store,
 886            agent: agent.clone(),
 887            project,
 888            workspace,
 889            save_thread_task: None,
 890            messages: Vec::new(),
 891            rendered_messages_by_id: HashMap::default(),
 892            rendered_tool_uses: HashMap::default(),
 893            expanded_tool_uses: HashMap::default(),
 894            expanded_thinking_segments: HashMap::default(),
 895            expanded_code_blocks: HashMap::default(),
 896            list_state: list_state.clone(),
 897            scrollbar_state: ScrollbarState::new(list_state),
 898            show_scrollbar: false,
 899            hide_scrollbar_task: None,
 900            editing_message: None,
 901            last_error: None,
 902            copied_code_block_ids: HashSet::default(),
 903            notifications: Vec::new(),
 904            _subscriptions: subscriptions,
 905            notification_subscriptions: HashMap::default(),
 906            open_feedback_editors: HashMap::default(),
 907            _load_edited_message_context_task: None,
 908        };
 909
 910        // todo! hold on to thread entity and get messages directly
 911        for message in agent.read(cx).messages().cloned().collect::<Vec<_>>() {
 912            let rendered_message = RenderedMessage::from_segments(
 913                &message.segments,
 914                this.language_registry.clone(),
 915                cx,
 916            );
 917            this.push_rendered_message(message.id, rendered_message);
 918
 919            for tool_use in agent.read(cx).tool_uses_for_message(message.id, cx) {
 920                this.render_tool_use_markdown(
 921                    tool_use.id.clone(),
 922                    tool_use.ui_text.clone(),
 923                    &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
 924                    tool_use.status.text(),
 925                    cx,
 926                );
 927            }
 928        }
 929
 930        this
 931    }
 932
 933    pub fn agent(&self) -> &Entity<ZedAgentThread> {
 934        &self.agent
 935    }
 936
 937    pub fn is_empty(&self) -> bool {
 938        self.messages.is_empty()
 939    }
 940
 941    pub fn summary<'a>(&'a self, cx: &'a App) -> &'a ThreadSummary {
 942        self.agent.read(cx).summary()
 943    }
 944
 945    pub fn regenerate_summary(&self, cx: &mut App) {
 946        self.agent.update(cx, |agent, cx| agent.summarize(cx))
 947    }
 948
 949    pub fn cancel_last_completion(&mut self, window: &mut Window, cx: &mut App) -> bool {
 950        self.last_error.take();
 951        self.agent.update(cx, |agent, cx| {
 952            agent.cancel_last_completion(Some(window.window_handle()), cx)
 953        })
 954    }
 955
 956    pub fn last_error(&self) -> Option<ThreadError> {
 957        self.last_error.clone()
 958    }
 959
 960    pub fn clear_last_error(&mut self) {
 961        self.last_error.take();
 962    }
 963
 964    /// Returns the editing message id and the estimated token count in the content
 965    pub fn editing_message_id(&self) -> Option<(MessageId, u64)> {
 966        self.editing_message
 967            .as_ref()
 968            .map(|(id, state)| (*id, state.last_estimated_token_count.unwrap_or(0)))
 969    }
 970
 971    pub fn context_store(&self) -> &Entity<ContextStore> {
 972        &self.context_store
 973    }
 974
 975    pub fn thread_store(&self) -> &Entity<ThreadStore> {
 976        &self.thread_store
 977    }
 978
 979    pub fn text_thread_store(&self) -> &Entity<TextThreadStore> {
 980        &self.text_thread_store
 981    }
 982
 983    fn push_rendered_message(&mut self, id: MessageId, rendered_message: RenderedMessage) {
 984        let old_len = self.messages.len();
 985        self.messages.push(id);
 986        self.list_state.splice(old_len..old_len, 1);
 987        self.rendered_messages_by_id.insert(id, rendered_message);
 988    }
 989
 990    fn deleted_message(&mut self, id: &MessageId) {
 991        let Some(index) = self.messages.iter().position(|message_id| message_id == id) else {
 992            return;
 993        };
 994        self.messages.remove(index);
 995        self.list_state.splice(index..index + 1, 0);
 996        self.rendered_messages_by_id.remove(id);
 997    }
 998
 999    fn render_tool_use_markdown(
1000        &mut self,
1001        tool_use_id: LanguageModelToolUseId,
1002        tool_label: impl Into<SharedString>,
1003        tool_input: &str,
1004        tool_output: SharedString,
1005        cx: &mut Context<Self>,
1006    ) {
1007        let rendered = self
1008            .rendered_tool_uses
1009            .entry(tool_use_id.clone())
1010            .or_insert_with(|| RenderedToolUse {
1011                label: cx.new(|cx| {
1012                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
1013                }),
1014                input: cx.new(|cx| {
1015                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
1016                }),
1017                output: cx.new(|cx| {
1018                    Markdown::new("".into(), Some(self.language_registry.clone()), None, cx)
1019                }),
1020            });
1021
1022        rendered.label.update(cx, |this, cx| {
1023            this.replace(tool_label, cx);
1024        });
1025        rendered.input.update(cx, |this, cx| {
1026            this.replace(
1027                MarkdownCodeBlock {
1028                    tag: "json",
1029                    text: tool_input,
1030                }
1031                .to_string(),
1032                cx,
1033            );
1034        });
1035        rendered.output.update(cx, |this, cx| {
1036            this.replace(tool_output, cx);
1037        });
1038    }
1039
1040    fn handle_thread_event(
1041        &mut self,
1042        _agent: &Entity<ZedAgentThread>,
1043        event: &ThreadEvent,
1044        window: &mut Window,
1045        cx: &mut Context<Self>,
1046    ) {
1047        match event {
1048            ThreadEvent::CancelEditing => {
1049                if self.editing_message.is_some() {
1050                    self.cancel_editing_message(&menu::Cancel, window, cx);
1051                }
1052            }
1053            ThreadEvent::ShowError(error) => {
1054                self.last_error = Some(error.clone());
1055            }
1056            ThreadEvent::NewRequest => {
1057                cx.notify();
1058            }
1059            ThreadEvent::CompletionCanceled => {
1060                self.project.update(cx, |project, cx| {
1061                    project.set_agent_location(None, cx);
1062                });
1063                self.workspace
1064                    .update(cx, |workspace, cx| {
1065                        if workspace.is_being_followed(CollaboratorId::Agent) {
1066                            workspace.unfollow(CollaboratorId::Agent, window, cx);
1067                        }
1068                    })
1069                    .ok();
1070                cx.notify();
1071            }
1072            ThreadEvent::StreamedCompletion
1073            | ThreadEvent::SummaryGenerated
1074            | ThreadEvent::SummaryChanged => {
1075                self.save_thread(cx);
1076            }
1077            ThreadEvent::Stopped(reason) => match reason {
1078                Ok(StopReason::EndTurn | StopReason::MaxTokens) => {
1079                    let used_tools = self.agent.read(cx).used_tools_since_last_user_message(cx);
1080                    self.play_notification_sound(window, cx);
1081                    self.show_notification(
1082                        if used_tools {
1083                            "Finished running tools"
1084                        } else {
1085                            "New message"
1086                        },
1087                        IconName::ZedAssistant,
1088                        window,
1089                        cx,
1090                    );
1091                }
1092                _ => {}
1093            },
1094            ThreadEvent::ToolConfirmationNeeded => {
1095                self.play_notification_sound(window, cx);
1096                self.show_notification("Waiting for tool confirmation", IconName::Info, window, cx);
1097            }
1098            ThreadEvent::ToolUseLimitReached => {
1099                self.play_notification_sound(window, cx);
1100                self.show_notification(
1101                    "Consecutive tool use limit reached.",
1102                    IconName::Warning,
1103                    window,
1104                    cx,
1105                );
1106            }
1107            ThreadEvent::StreamedAssistantText(message_id, text) => {
1108                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1109                    rendered_message.append_text(text, cx);
1110                }
1111            }
1112            ThreadEvent::StreamedAssistantThinking(message_id, text) => {
1113                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1114                    rendered_message.append_thinking(text, cx);
1115                }
1116            }
1117            ThreadEvent::StreamedToolUse2 {
1118                message_id,
1119                segment_index,
1120            } => {
1121                if let Some(rendered_message) = self.rendered_messages_by_id.get_mut(&message_id) {
1122                    self.agent.update(cx, |agent, cx| {
1123                        if let Some(message) = agent.message(*message_id) {
1124                            let MessageSegment::ToolUse(tool_use) =
1125                                &message.segments[*segment_index]
1126                            else {
1127                                debug_panic!("segment index mismatch");
1128                                return;
1129                            };
1130                            let tools = self.agent.read(cx).tools().clone();
1131                            rendered_message.update_tool_call(*segment_index, tool_use, &tools, cx);
1132                        }
1133                    })
1134                }
1135            }
1136            ThreadEvent::MessageAdded(message_id) => {
1137                if let Some(rendered_message) = self.agent.update(cx, |agent, cx| {
1138                    agent.message(*message_id).map(|message| {
1139                        RenderedMessage::from_segments(
1140                            &message.segments,
1141                            self.language_registry.clone(),
1142                            cx,
1143                        )
1144                    })
1145                }) {
1146                    self.push_rendered_message(*message_id, rendered_message);
1147                }
1148
1149                self.save_thread(cx);
1150                cx.notify();
1151            }
1152            ThreadEvent::MessageEdited(message_id) => {
1153                if let Some(index) = self.messages.iter().position(|id| id == message_id) {
1154                    if let Some(rendered_message) = self.agent.update(cx, |agent, cx| {
1155                        agent.message(*message_id).map(|message| {
1156                            let mut rendered_message = RenderedMessage {
1157                                language_registry: self.language_registry.clone(),
1158                                segments: Vec::with_capacity(message.segments.len()),
1159                            };
1160                            for segment in &message.segments {
1161                                rendered_message.push_segment(segment, cx);
1162                            }
1163                            rendered_message
1164                        })
1165                    }) {
1166                        self.list_state.splice(index..index + 1, 1);
1167                        self.rendered_messages_by_id
1168                            .insert(*message_id, rendered_message);
1169                        self.scroll_to_bottom(cx);
1170                        self.save_thread(cx);
1171                        cx.notify();
1172                    }
1173                }
1174            }
1175            ThreadEvent::MessageDeleted(message_id) => {
1176                self.deleted_message(message_id);
1177                self.save_thread(cx);
1178                cx.notify();
1179            }
1180            ThreadEvent::UsePendingTools { tool_uses } => {
1181                for tool_use in tool_uses {
1182                    self.render_tool_use_markdown(
1183                        tool_use.id.clone(),
1184                        tool_use.ui_text.clone(),
1185                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1186                        "".into(),
1187                        cx,
1188                    );
1189                }
1190            }
1191            ThreadEvent::StreamedToolUse {
1192                tool_use_id,
1193                ui_text,
1194                input,
1195            } => {
1196                self.render_tool_use_markdown(
1197                    tool_use_id.clone(),
1198                    ui_text.clone(),
1199                    &serde_json::to_string_pretty(&input).unwrap_or_default(),
1200                    "".into(),
1201                    cx,
1202                );
1203            }
1204            ThreadEvent::ToolFinished {
1205                pending_tool_use, ..
1206            } => {
1207                if let Some(tool_use) = pending_tool_use {
1208                    self.render_tool_use_markdown(
1209                        tool_use.id.clone(),
1210                        tool_use.ui_text.clone(),
1211                        &serde_json::to_string_pretty(&tool_use.input).unwrap_or_default(),
1212                        self.agent
1213                            .read(cx)
1214                            .output_for_tool(&tool_use.id)
1215                            .map(|output| output.clone().into())
1216                            .unwrap_or("".into()),
1217                        cx,
1218                    );
1219                }
1220            }
1221            ThreadEvent::CheckpointChanged => cx.notify(),
1222            ThreadEvent::ReceivedTextChunk => {}
1223            ThreadEvent::InvalidToolInput {
1224                tool_use_id,
1225                ui_text,
1226                invalid_input_json,
1227            } => {
1228                self.render_tool_use_markdown(
1229                    tool_use_id.clone(),
1230                    ui_text,
1231                    invalid_input_json,
1232                    self.agent
1233                        .read(cx)
1234                        .output_for_tool(tool_use_id)
1235                        .map(|output| output.clone().into())
1236                        .unwrap_or("".into()),
1237                    cx,
1238                );
1239            }
1240            ThreadEvent::MissingToolUse {
1241                tool_use_id,
1242                ui_text,
1243            } => {
1244                self.render_tool_use_markdown(
1245                    tool_use_id.clone(),
1246                    ui_text,
1247                    "",
1248                    self.agent
1249                        .read(cx)
1250                        .output_for_tool(tool_use_id)
1251                        .map(|output| output.clone().into())
1252                        .unwrap_or("".into()),
1253                    cx,
1254                );
1255            }
1256            ThreadEvent::ProfileChanged => {
1257                self.save_thread(cx);
1258                cx.notify();
1259            }
1260            ThreadEvent::RetriesFailed { message } => {
1261                self.show_notification(message, ui::IconName::Warning, window, cx);
1262            }
1263        }
1264    }
1265
1266    fn handle_rules_loading_error(
1267        &mut self,
1268        _thread_store: Entity<ThreadStore>,
1269        error: &RulesLoadingError,
1270        cx: &mut Context<Self>,
1271    ) {
1272        self.last_error = Some(ThreadError::Message {
1273            header: "Error loading rules file".into(),
1274            message: error.message.clone(),
1275        });
1276        cx.notify();
1277    }
1278
1279    fn play_notification_sound(&self, window: &Window, cx: &mut App) {
1280        let settings = AgentSettings::get_global(cx);
1281        if settings.play_sound_when_agent_done && !window.is_window_active() {
1282            Audio::play_sound(Sound::AgentDone, cx);
1283        }
1284    }
1285
1286    fn show_notification(
1287        &mut self,
1288        caption: impl Into<SharedString>,
1289        icon: IconName,
1290        window: &mut Window,
1291        cx: &mut Context<ActiveThread>,
1292    ) {
1293        if window.is_window_active() || !self.notifications.is_empty() {
1294            return;
1295        }
1296
1297        let title = self.agent.read(cx).summary().unwrap_or("Agent Panel");
1298
1299        match AgentSettings::get_global(cx).notify_when_agent_waiting {
1300            NotifyWhenAgentWaiting::PrimaryScreen => {
1301                if let Some(primary) = cx.primary_display() {
1302                    self.pop_up(icon, caption.into(), title.clone(), window, primary, cx);
1303                }
1304            }
1305            NotifyWhenAgentWaiting::AllScreens => {
1306                let caption = caption.into();
1307                for screen in cx.displays() {
1308                    self.pop_up(icon, caption.clone(), title.clone(), window, screen, cx);
1309                }
1310            }
1311            NotifyWhenAgentWaiting::Never => {
1312                // Don't show anything
1313            }
1314        }
1315    }
1316
1317    fn pop_up(
1318        &mut self,
1319        icon: IconName,
1320        caption: SharedString,
1321        title: SharedString,
1322        window: &mut Window,
1323        screen: Rc<dyn PlatformDisplay>,
1324        cx: &mut Context<'_, ActiveThread>,
1325    ) {
1326        let options = AgentNotification::window_options(screen, cx);
1327
1328        let project_name = self.workspace.upgrade().and_then(|workspace| {
1329            workspace
1330                .read(cx)
1331                .project()
1332                .read(cx)
1333                .visible_worktrees(cx)
1334                .next()
1335                .map(|worktree| worktree.read(cx).root_name().to_string())
1336        });
1337
1338        if let Some(screen_window) = cx
1339            .open_window(options, |_, cx| {
1340                cx.new(|_| {
1341                    AgentNotification::new(title.clone(), caption.clone(), icon, project_name)
1342                })
1343            })
1344            .log_err()
1345        {
1346            if let Some(pop_up) = screen_window.entity(cx).log_err() {
1347                self.notification_subscriptions
1348                    .entry(screen_window)
1349                    .or_insert_with(Vec::new)
1350                    .push(cx.subscribe_in(&pop_up, window, {
1351                        |this, _, event, window, cx| match event {
1352                            AgentNotificationEvent::Accepted => {
1353                                let handle = window.window_handle();
1354                                cx.activate(true);
1355
1356                                let workspace_handle = this.workspace.clone();
1357
1358                                // If there are multiple Zed windows, activate the correct one.
1359                                cx.defer(move |cx| {
1360                                    handle
1361                                        .update(cx, |_view, window, _cx| {
1362                                            window.activate_window();
1363
1364                                            if let Some(workspace) = workspace_handle.upgrade() {
1365                                                workspace.update(_cx, |workspace, cx| {
1366                                                    workspace.focus_panel::<AgentPanel>(window, cx);
1367                                                });
1368                                            }
1369                                        })
1370                                        .log_err();
1371                                });
1372
1373                                this.dismiss_notifications(cx);
1374                            }
1375                            AgentNotificationEvent::Dismissed => {
1376                                this.dismiss_notifications(cx);
1377                            }
1378                        }
1379                    }));
1380
1381                self.notifications.push(screen_window);
1382
1383                // If the user manually refocuses the original window, dismiss the popup.
1384                self.notification_subscriptions
1385                    .entry(screen_window)
1386                    .or_insert_with(Vec::new)
1387                    .push({
1388                        let pop_up_weak = pop_up.downgrade();
1389
1390                        cx.observe_window_activation(window, move |_, window, cx| {
1391                            if window.is_window_active() {
1392                                if let Some(pop_up) = pop_up_weak.upgrade() {
1393                                    pop_up.update(cx, |_, cx| {
1394                                        cx.emit(AgentNotificationEvent::Dismissed);
1395                                    });
1396                                }
1397                            }
1398                        })
1399                    });
1400            }
1401        }
1402    }
1403
1404    /// Spawns a task to save the active thread.
1405    ///
1406    /// Only one task to save the thread will be in flight at a time.
1407    fn save_thread(&mut self, cx: &mut Context<Self>) {
1408        let agent = self.agent.clone();
1409        self.save_thread_task = Some(cx.spawn(async move |this, cx| {
1410            let task = this
1411                .update(cx, |this, cx| {
1412                    this.thread_store
1413                        .update(cx, |thread_store, cx| thread_store.save_thread(&agent, cx))
1414                })
1415                .ok();
1416
1417            if let Some(task) = task {
1418                task.await.log_err();
1419            }
1420        }));
1421    }
1422
1423    fn start_editing_message(
1424        &mut self,
1425        message_id: MessageId,
1426        message_text: impl Into<Arc<str>>,
1427        message_creases: &[MessageCrease],
1428        window: &mut Window,
1429        cx: &mut Context<Self>,
1430    ) {
1431        let editor = crate::message_editor::create_editor(
1432            self.workspace.clone(),
1433            self.context_store.downgrade(),
1434            self.thread_store.downgrade(),
1435            self.text_thread_store.downgrade(),
1436            EDIT_PREVIOUS_MESSAGE_MIN_LINES,
1437            None,
1438            window,
1439            cx,
1440        );
1441        editor.update(cx, |editor, cx| {
1442            editor.set_text(message_text, window, cx);
1443            insert_message_creases(editor, message_creases, &self.context_store, window, cx);
1444            editor.focus_handle(cx).focus(window);
1445            editor.move_to_end(&editor::actions::MoveToEnd, window, cx);
1446        });
1447        let buffer_edited_subscription = cx.subscribe(&editor, |this, _, event, cx| match event {
1448            EditorEvent::BufferEdited => {
1449                this.update_editing_message_token_count(true, cx);
1450            }
1451            _ => {}
1452        });
1453
1454        let context_picker_menu_handle = PopoverMenuHandle::default();
1455        let context_strip = cx.new(|cx| {
1456            ContextStrip::new(
1457                self.context_store.clone(),
1458                self.workspace.clone(),
1459                Some(self.thread_store.downgrade()),
1460                Some(self.text_thread_store.downgrade()),
1461                context_picker_menu_handle.clone(),
1462                SuggestContextKind::File,
1463                ModelUsageContext::Thread(self.agent.clone()),
1464                window,
1465                cx,
1466            )
1467        });
1468
1469        let context_strip_subscription =
1470            cx.subscribe_in(&context_strip, window, Self::handle_context_strip_event);
1471
1472        self.editing_message = Some((
1473            message_id,
1474            EditingMessageState {
1475                editor: editor.clone(),
1476                context_strip,
1477                context_picker_menu_handle,
1478                last_estimated_token_count: None,
1479                _subscriptions: [buffer_edited_subscription, context_strip_subscription],
1480                _update_token_count_task: None,
1481            },
1482        ));
1483        self.update_editing_message_token_count(false, cx);
1484        cx.notify();
1485    }
1486
1487    fn handle_context_strip_event(
1488        &mut self,
1489        _context_strip: &Entity<ContextStrip>,
1490        event: &ContextStripEvent,
1491        window: &mut Window,
1492        cx: &mut Context<Self>,
1493    ) {
1494        if let Some((_, state)) = self.editing_message.as_ref() {
1495            match event {
1496                ContextStripEvent::PickerDismissed
1497                | ContextStripEvent::BlurredEmpty
1498                | ContextStripEvent::BlurredDown => {
1499                    let editor_focus_handle = state.editor.focus_handle(cx);
1500                    window.focus(&editor_focus_handle);
1501                }
1502                ContextStripEvent::BlurredUp => {}
1503            }
1504        }
1505    }
1506
1507    fn update_editing_message_token_count(&mut self, debounce: bool, cx: &mut Context<Self>) {
1508        let Some((message_id, state)) = self.editing_message.as_mut() else {
1509            return;
1510        };
1511
1512        cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1513        state._update_token_count_task.take();
1514
1515        let Some(configured_model) = self.agent.read(cx).configured_model() else {
1516            state.last_estimated_token_count.take();
1517            return;
1518        };
1519
1520        let editor = state.editor.clone();
1521        let agent = self.agent.clone();
1522        let message_id = *message_id;
1523
1524        state._update_token_count_task = Some(cx.spawn(async move |this, cx| {
1525            if debounce {
1526                cx.background_executor()
1527                    .timer(Duration::from_millis(200))
1528                    .await;
1529            }
1530
1531            let token_count = if let Some(task) = cx
1532                .update(|cx| {
1533                    let Some(message) = agent.read(cx).message(message_id) else {
1534                        log::error!("Message that was being edited no longer exists");
1535                        return None;
1536                    };
1537                    let message_text = editor.read(cx).text(cx);
1538
1539                    if message_text.is_empty() && message.loaded_context.is_empty() {
1540                        return None;
1541                    }
1542
1543                    let mut request_message = LanguageModelRequestMessage {
1544                        role: language_model::Role::User,
1545                        content: Vec::new(),
1546                        cache: false,
1547                    };
1548
1549                    message
1550                        .loaded_context
1551                        .add_to_request_message(&mut request_message);
1552
1553                    if !message_text.is_empty() {
1554                        request_message
1555                            .content
1556                            .push(MessageContent::Text(message_text));
1557                    }
1558
1559                    let request = language_model::LanguageModelRequest {
1560                        thread_id: None,
1561                        prompt_id: None,
1562                        intent: None,
1563                        mode: None,
1564                        messages: vec![request_message],
1565                        tools: vec![],
1566                        tool_choice: None,
1567                        stop: vec![],
1568                        temperature: AgentSettings::temperature_for_model(
1569                            &configured_model.model,
1570                            cx,
1571                        ),
1572                    };
1573
1574                    Some(configured_model.model.count_tokens(request, cx))
1575                })
1576                .ok()
1577                .flatten()
1578            {
1579                task.await.log_err()
1580            } else {
1581                Some(0)
1582            };
1583
1584            if let Some(token_count) = token_count {
1585                this.update(cx, |this, cx| {
1586                    let Some((_message_id, state)) = this.editing_message.as_mut() else {
1587                        return;
1588                    };
1589
1590                    state.last_estimated_token_count = Some(token_count);
1591                    cx.emit(ActiveThreadEvent::EditingMessageTokenCountChanged);
1592                })
1593                .ok();
1594            };
1595        }));
1596    }
1597
1598    fn toggle_context_picker(
1599        &mut self,
1600        _: &crate::ToggleContextPicker,
1601        window: &mut Window,
1602        cx: &mut Context<Self>,
1603    ) {
1604        if let Some((_, state)) = self.editing_message.as_mut() {
1605            let handle = state.context_picker_menu_handle.clone();
1606            window.defer(cx, move |window, cx| {
1607                handle.toggle(window, cx);
1608            });
1609        }
1610    }
1611
1612    fn remove_all_context(
1613        &mut self,
1614        _: &crate::RemoveAllContext,
1615        _window: &mut Window,
1616        cx: &mut Context<Self>,
1617    ) {
1618        self.context_store.update(cx, |store, cx| store.clear(cx));
1619        cx.notify();
1620    }
1621
1622    fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
1623        if let Some((_, state)) = self.editing_message.as_mut() {
1624            if state.context_picker_menu_handle.is_deployed() {
1625                cx.propagate();
1626            } else {
1627                state.context_strip.focus_handle(cx).focus(window);
1628            }
1629        }
1630    }
1631
1632    fn paste(&mut self, _: &Paste, _window: &mut Window, cx: &mut Context<Self>) {
1633        attach_pasted_images_as_context(&self.context_store, cx);
1634    }
1635
1636    fn cancel_editing_message(
1637        &mut self,
1638        _: &menu::Cancel,
1639        window: &mut Window,
1640        cx: &mut Context<Self>,
1641    ) {
1642        self.editing_message.take();
1643        cx.notify();
1644
1645        if let Some(workspace) = self.workspace.upgrade() {
1646            workspace.update(cx, |workspace, cx| {
1647                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1648                    panel.focus_handle(cx).focus(window);
1649                }
1650            });
1651        }
1652    }
1653
1654    fn confirm_editing_message(
1655        &mut self,
1656        _: &menu::Confirm,
1657        window: &mut Window,
1658        cx: &mut Context<Self>,
1659    ) {
1660        let Some((message_id, state)) = self.editing_message.take() else {
1661            return;
1662        };
1663
1664        let Some(model) = self
1665            .agent
1666            .update(cx, |agent, cx| agent.get_or_init_configured_model(cx))
1667        else {
1668            return;
1669        };
1670
1671        if model.provider.must_accept_terms(cx) {
1672            cx.notify();
1673            return;
1674        }
1675
1676        let edited_text = state.editor.read(cx).text(cx);
1677
1678        let creases = state.editor.update(cx, extract_message_creases);
1679
1680        let new_context = self.context_store.read(cx).new_context_for_thread(
1681            self.agent.read(cx),
1682            Some(message_id),
1683            cx,
1684        );
1685
1686        let project = self.project.clone();
1687        let prompt_store = self.thread_store.read(cx).prompt_store().clone();
1688
1689        let git_store = project.read(cx).git_store().clone();
1690        let checkpoint = git_store.update(cx, |git_store, cx| git_store.checkpoint(cx));
1691
1692        let load_context_task = context::load_context(new_context, &project, &prompt_store, cx);
1693        self._load_edited_message_context_task =
1694            Some(cx.spawn_in(window, async move |this, cx| {
1695                let (context, checkpoint) =
1696                    futures::future::join(load_context_task, checkpoint).await;
1697                let _ = this
1698                    .update_in(cx, |this, window, cx| {
1699                        this.agent.update(cx, |agent, cx| {
1700                            agent.truncate(message_id, cx);
1701                            agent.send_message(
1702                                UserMessageParams {
1703                                    text: edited_text,
1704                                    creases,
1705                                    checkpoint: checkpoint.ok(),
1706                                    context,
1707                                },
1708                                model.model,
1709                                Some(window.window_handle()),
1710                                cx,
1711                            );
1712                        });
1713
1714                        // todo! do we need this?
1715                        this._load_edited_message_context_task = None;
1716
1717                        cx.notify();
1718                    })
1719                    .log_err();
1720            }));
1721
1722        if let Some(workspace) = self.workspace.upgrade() {
1723            workspace.update(cx, |workspace, cx| {
1724                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
1725                    panel.focus_handle(cx).focus(window);
1726                }
1727            });
1728        }
1729    }
1730
1731    fn handle_cancel_click(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
1732        self.cancel_editing_message(&menu::Cancel, window, cx);
1733    }
1734
1735    fn handle_regenerate_click(
1736        &mut self,
1737        _: &ClickEvent,
1738        window: &mut Window,
1739        cx: &mut Context<Self>,
1740    ) {
1741        self.confirm_editing_message(&menu::Confirm, window, cx);
1742    }
1743
1744    fn handle_feedback_click(
1745        &mut self,
1746        message_id: MessageId,
1747        feedback: ThreadFeedback,
1748        window: &mut Window,
1749        cx: &mut Context<Self>,
1750    ) {
1751        let report = self.agent.update(cx, |thread, cx| {
1752            thread.report_message_feedback(message_id, feedback, cx)
1753        });
1754
1755        cx.spawn(async move |this, cx| {
1756            report.await?;
1757            this.update(cx, |_this, cx| cx.notify())
1758        })
1759        .detach_and_log_err(cx);
1760
1761        match feedback {
1762            ThreadFeedback::Positive => {
1763                self.open_feedback_editors.remove(&message_id);
1764            }
1765            ThreadFeedback::Negative => {
1766                self.handle_show_feedback_comments(message_id, window, cx);
1767            }
1768        }
1769    }
1770
1771    fn handle_show_feedback_comments(
1772        &mut self,
1773        message_id: MessageId,
1774        window: &mut Window,
1775        cx: &mut Context<Self>,
1776    ) {
1777        let buffer = cx.new(|cx| {
1778            let empty_string = String::new();
1779            MultiBuffer::singleton(cx.new(|cx| Buffer::local(empty_string, cx)), cx)
1780        });
1781
1782        let editor = cx.new(|cx| {
1783            let mut editor = Editor::new(
1784                editor::EditorMode::AutoHeight {
1785                    min_lines: 1,
1786                    max_lines: Some(4),
1787                },
1788                buffer,
1789                None,
1790                window,
1791                cx,
1792            );
1793            editor.set_placeholder_text(
1794                "What went wrong? Share your feedback so we can improve.",
1795                cx,
1796            );
1797            editor
1798        });
1799
1800        editor.read(cx).focus_handle(cx).focus(window);
1801        self.open_feedback_editors.insert(message_id, editor);
1802        cx.notify();
1803    }
1804
1805    fn submit_feedback_message(&mut self, message_id: MessageId, cx: &mut Context<Self>) {
1806        let Some(editor) = self.open_feedback_editors.get(&message_id) else {
1807            return;
1808        };
1809
1810        let report_task = self.agent.update(cx, |thread, cx| {
1811            thread.report_message_feedback(message_id, ThreadFeedback::Negative, cx)
1812        });
1813
1814        let comments = editor.read(cx).text(cx);
1815        if !comments.is_empty() {
1816            let thread_id = self.agent.read(cx).id().clone();
1817            let comments_value = String::from(comments.as_str());
1818
1819            let message_content = self
1820                .agent
1821                .read(cx)
1822                .message(message_id)
1823                .map(|msg| msg.to_string())
1824                .unwrap_or_default();
1825
1826            telemetry::event!(
1827                "Assistant Thread Feedback Comments",
1828                thread_id,
1829                message_id = message_id.as_usize(),
1830                message_content,
1831                comments = comments_value
1832            );
1833
1834            self.open_feedback_editors.remove(&message_id);
1835
1836            cx.spawn(async move |this, cx| {
1837                report_task.await?;
1838                this.update(cx, |_this, cx| cx.notify())
1839            })
1840            .detach_and_log_err(cx);
1841        }
1842    }
1843
1844    fn render_edit_message_editor(
1845        &self,
1846        state: &EditingMessageState,
1847        _window: &mut Window,
1848        cx: &Context<Self>,
1849    ) -> impl IntoElement {
1850        let settings = ThemeSettings::get_global(cx);
1851        let font_size = TextSize::Small
1852            .rems(cx)
1853            .to_pixels(settings.agent_font_size(cx));
1854        let line_height = font_size * 1.75;
1855
1856        let colors = cx.theme().colors();
1857
1858        let text_style = TextStyle {
1859            color: colors.text,
1860            font_family: settings.buffer_font.family.clone(),
1861            font_fallbacks: settings.buffer_font.fallbacks.clone(),
1862            font_features: settings.buffer_font.features.clone(),
1863            font_size: font_size.into(),
1864            line_height: line_height.into(),
1865            ..Default::default()
1866        };
1867
1868        v_flex()
1869            .key_context("EditMessageEditor")
1870            .on_action(cx.listener(Self::toggle_context_picker))
1871            .on_action(cx.listener(Self::remove_all_context))
1872            .on_action(cx.listener(Self::move_up))
1873            .on_action(cx.listener(Self::cancel_editing_message))
1874            .on_action(cx.listener(Self::confirm_editing_message))
1875            .capture_action(cx.listener(Self::paste))
1876            .min_h_6()
1877            .w_full()
1878            .flex_grow()
1879            .gap_2()
1880            .child(state.context_strip.clone())
1881            .child(div().pt(px(-3.)).px_neg_0p5().child(EditorElement::new(
1882                &state.editor,
1883                EditorStyle {
1884                    background: colors.editor_background,
1885                    local_player: cx.theme().players().local(),
1886                    text: text_style,
1887                    syntax: cx.theme().syntax().clone(),
1888                    ..Default::default()
1889                },
1890            )))
1891    }
1892
1893    fn render_message(&self, ix: usize, window: &mut Window, cx: &mut Context<Self>) -> AnyElement {
1894        let message_id = self.messages[ix];
1895        let workspace = self.workspace.clone();
1896        let agent = self.agent.read(cx);
1897
1898        let is_first_message = ix == 0;
1899        let is_last_message = ix == self.messages.len() - 1;
1900
1901        let Some(message) = agent.message(message_id) else {
1902            return Empty.into_any();
1903        };
1904
1905        let is_generating = agent.is_generating();
1906        let is_generating_stale = agent.is_generation_stale().unwrap_or(false);
1907
1908        let loading_dots = (is_generating && is_last_message).then(|| {
1909            h_flex()
1910                .h_8()
1911                .my_3()
1912                .mx_5()
1913                .when(is_generating_stale, |this| {
1914                    this.child(AnimatedLabel::new("").size(LabelSize::Small))
1915                })
1916        });
1917
1918        let Some(rendered_message) = self.rendered_messages_by_id.get(&message_id) else {
1919            return Empty.into_any();
1920        };
1921
1922        // Get all the data we need from thread before we start using it in closures
1923        let checkpoint = agent.checkpoint_for_message(message_id);
1924        let configured_model = agent.configured_model().map(|m| m.model);
1925        let added_context = agent
1926            .context_for_message(message_id)
1927            .map(|context| AddedContext::new_attached(context, configured_model.as_ref(), cx))
1928            .collect::<Vec<_>>();
1929
1930        // let tool_uses = message.segments
1931        let tool_uses = agent.tool_uses_for_message(message_id, cx);
1932        let has_tool_uses = !tool_uses.is_empty();
1933
1934        let editing_message_state = self
1935            .editing_message
1936            .as_ref()
1937            .filter(|(id, _)| *id == message_id)
1938            .map(|(_, state)| state);
1939
1940        let (editor_bg_color, panel_bg) = {
1941            let colors = cx.theme().colors();
1942            (colors.editor_background, colors.panel_background)
1943        };
1944
1945        let open_as_markdown = IconButton::new(("open-as-markdown", ix), IconName::DocumentText)
1946            .icon_size(IconSize::XSmall)
1947            .icon_color(Color::Ignored)
1948            .tooltip(Tooltip::text("Open Thread as Markdown"))
1949            .on_click({
1950                let agent = self.agent.clone();
1951                let workspace = self.workspace.clone();
1952                move |_, window, cx| {
1953                    if let Some(workspace) = workspace.upgrade() {
1954                        open_active_thread_as_markdown(agent.clone(), workspace, window, cx)
1955                            .detach_and_log_err(cx);
1956                    }
1957                }
1958            });
1959
1960        let scroll_to_top = IconButton::new(("scroll_to_top", ix), IconName::ArrowUpAlt)
1961            .icon_size(IconSize::XSmall)
1962            .icon_color(Color::Ignored)
1963            .tooltip(Tooltip::text("Scroll To Top"))
1964            .on_click(cx.listener(move |this, _, _, cx| {
1965                this.scroll_to_top(cx);
1966            }));
1967
1968        // For all items that should be aligned with the LLM's response.
1969        const RESPONSE_PADDING_X: Pixels = px(19.);
1970
1971        let show_feedback = self.agent.read(cx).is_turn_end(ix);
1972        let feedback_container = h_flex()
1973            .group("feedback_container")
1974            .mt_1()
1975            .py_2()
1976            .px(RESPONSE_PADDING_X)
1977            .mr_1()
1978            .opacity(0.4)
1979            .hover(|style| style.opacity(1.))
1980            .gap_1p5()
1981            .flex_wrap()
1982            .justify_end();
1983        let feedback_items = match self.agent.read(cx).message_feedback(message_id) {
1984            Some(feedback) => feedback_container
1985                .child(
1986                    div().visible_on_hover("feedback_container").child(
1987                        Label::new(match feedback {
1988                            ThreadFeedback::Positive => "Thanks for your feedback!",
1989                            ThreadFeedback::Negative => {
1990                                "We appreciate your feedback and will use it to improve."
1991                            }
1992                        })
1993                    .color(Color::Muted)
1994                    .size(LabelSize::XSmall)
1995                    .truncate())
1996                )
1997                .child(
1998                    h_flex()
1999                        .child(
2000                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
2001                                .icon_size(IconSize::XSmall)
2002                                .icon_color(match feedback {
2003                                    ThreadFeedback::Positive => Color::Accent,
2004                                    ThreadFeedback::Negative => Color::Ignored,
2005                                })
2006                                .tooltip(Tooltip::text("Helpful Response"))
2007                                .on_click(cx.listener(move |this, _, window, cx| {
2008                                    this.handle_feedback_click(
2009                                        message_id,
2010                                        ThreadFeedback::Positive,
2011                                        window,
2012                                        cx,
2013                                    );
2014                                })),
2015                        )
2016                        .child(
2017                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
2018                                .icon_size(IconSize::XSmall)
2019                                .icon_color(match feedback {
2020                                    ThreadFeedback::Positive => Color::Ignored,
2021                                    ThreadFeedback::Negative => Color::Accent,
2022                                })
2023                                .tooltip(Tooltip::text("Not Helpful"))
2024                                .on_click(cx.listener(move |this, _, window, cx| {
2025                                    this.handle_feedback_click(
2026                                        message_id,
2027                                        ThreadFeedback::Negative,
2028                                        window,
2029                                        cx,
2030                                    );
2031                                })),
2032                        )
2033                        .child(open_as_markdown),
2034                )
2035                .into_any_element(),
2036            None if AgentSettings::get_global(cx).enable_feedback =>
2037                feedback_container
2038                .child(
2039                    div().visible_on_hover("feedback_container").child(
2040                        Label::new(
2041                            "Rating the thread sends all of your current conversation to the Zed team.",
2042                        )
2043                        .color(Color::Muted)
2044                    .size(LabelSize::XSmall)
2045                    .truncate())
2046                )
2047                .child(
2048                    h_flex()
2049                        .child(
2050                            IconButton::new(("feedback-thumbs-up", ix), IconName::ThumbsUp)
2051                                .icon_size(IconSize::XSmall)
2052                                .icon_color(Color::Ignored)
2053                                .tooltip(Tooltip::text("Helpful Response"))
2054                                .on_click(cx.listener(move |this, _, window, cx| {
2055                                    this.handle_feedback_click(
2056                                        message_id,
2057                                        ThreadFeedback::Positive,
2058                                        window,
2059                                        cx,
2060                                    );
2061                                })),
2062                        )
2063                        .child(
2064                            IconButton::new(("feedback-thumbs-down", ix), IconName::ThumbsDown)
2065                                .icon_size(IconSize::XSmall)
2066                                .icon_color(Color::Ignored)
2067                                .tooltip(Tooltip::text("Not Helpful"))
2068                                .on_click(cx.listener(move |this, _, window, cx| {
2069                                    this.handle_feedback_click(
2070                                        message_id,
2071                                        ThreadFeedback::Negative,
2072                                        window,
2073                                        cx,
2074                                    );
2075                                })),
2076                        )
2077                        .child(open_as_markdown)
2078                        .child(scroll_to_top),
2079                )
2080                .into_any_element(),
2081            None => feedback_container
2082                .child(h_flex()
2083                    .child(open_as_markdown))
2084                    .child(scroll_to_top)
2085                .into_any_element(),
2086        };
2087
2088        let message_is_empty = message.should_display_content();
2089        let message_is_ui_only = message.ui_only;
2090        let message_creases = message.creases.clone();
2091        let role = message.role;
2092        let has_content = !message_is_empty || !added_context.is_empty();
2093
2094        let message_content = has_content.then(|| {
2095            if let Some(state) = editing_message_state.as_ref() {
2096                self.render_edit_message_editor(state, window, cx)
2097                    .into_any_element()
2098            } else {
2099                v_flex()
2100                    .w_full()
2101                    .gap_1()
2102                    .when(!added_context.is_empty(), |parent| {
2103                        parent.child(h_flex().flex_wrap().gap_1().children(
2104                            added_context.into_iter().map(|added_context| {
2105                                let context = added_context.handle.clone();
2106                                ContextPill::added(added_context, false, false, None).on_click(
2107                                    Rc::new(cx.listener({
2108                                        let workspace = workspace.clone();
2109                                        move |_, _, window, cx| {
2110                                            if let Some(workspace) = workspace.upgrade() {
2111                                                open_context(&context, workspace, window, cx);
2112                                                cx.notify();
2113                                            }
2114                                        }
2115                                    })),
2116                                )
2117                            }),
2118                        ))
2119                    })
2120                    .when(!message_is_empty, |parent| {
2121                        parent.child(div().pt_0p5().min_h_6().child(self.render_message_content(
2122                            message_id,
2123                            rendered_message,
2124                            has_tool_uses,
2125                            workspace.clone(),
2126                            window,
2127                            cx,
2128                        )))
2129                    })
2130                    .into_any_element()
2131            }
2132        });
2133
2134        let styled_message = if message_is_ui_only {
2135            self.render_ui_notification(message_content, ix, cx)
2136        } else {
2137            match role {
2138                Role::User => {
2139                    let colors = cx.theme().colors();
2140                    v_flex()
2141                        .id(("message-container", ix))
2142                        .pt_2()
2143                        .pl_2()
2144                        .pr_2p5()
2145                        .pb_4()
2146                        .child(
2147                            v_flex()
2148                                .id(("user-message", ix))
2149                                .bg(editor_bg_color)
2150                                .rounded_lg()
2151                                .shadow_md()
2152                                .border_1()
2153                                .border_color(colors.border)
2154                                .hover(|hover| hover.border_color(colors.text_accent.opacity(0.5)))
2155                                .child(
2156                                    v_flex()
2157                                        .p_2p5()
2158                                        .gap_1()
2159                                        .children(message_content)
2160                                        .when_some(editing_message_state, |this, state| {
2161                                            let focus_handle = state.editor.focus_handle(cx).clone();
2162
2163                                            this.child(
2164                                                h_flex()
2165                                                    .w_full()
2166                                                    .gap_1()
2167                                                    .justify_between()
2168                                                    .flex_wrap()
2169                                                    .child(
2170                                                        h_flex()
2171                                                            .gap_1p5()
2172                                                            .child(
2173                                                                div()
2174                                                                    .opacity(0.8)
2175                                                                    .child(
2176                                                                        Icon::new(IconName::Warning)
2177                                                                            .size(IconSize::Indicator)
2178                                                                            .color(Color::Warning)
2179                                                                    ),
2180                                                            )
2181                                                            .child(
2182                                                                Label::new("Editing will restart the thread from this point.")
2183                                                                    .color(Color::Muted)
2184                                                                    .size(LabelSize::XSmall),
2185                                                            ),
2186                                                    )
2187                                                    .child(
2188                                                        h_flex()
2189                                                            .gap_0p5()
2190                                                            .child(
2191                                                                IconButton::new(
2192                                                                    "cancel-edit-message",
2193                                                                    IconName::Close,
2194                                                                )
2195                                                                .shape(ui::IconButtonShape::Square)
2196                                                                .icon_color(Color::Error)
2197                                                                .icon_size(IconSize::Small)
2198                                                                .tooltip({
2199                                                                    let focus_handle = focus_handle.clone();
2200                                                                    move |window, cx| {
2201                                                                        Tooltip::for_action_in(
2202                                                                            "Cancel Edit",
2203                                                                            &menu::Cancel,
2204                                                                            &focus_handle,
2205                                                                            window,
2206                                                                            cx,
2207                                                                        )
2208                                                                    }
2209                                                                })
2210                                                                .on_click(cx.listener(Self::handle_cancel_click)),
2211                                                            )
2212                                                            .child(
2213                                                                IconButton::new(
2214                                                                    "confirm-edit-message",
2215                                                                    IconName::Return,
2216                                                                )
2217                                                                .disabled(state.editor.read(cx).is_empty(cx))
2218                                                                .shape(ui::IconButtonShape::Square)
2219                                                                .icon_color(Color::Muted)
2220                                                                .icon_size(IconSize::Small)
2221                                                                .tooltip({
2222                                                                    let focus_handle = focus_handle.clone();
2223                                                                    move |window, cx| {
2224                                                                        Tooltip::for_action_in(
2225                                                                            "Regenerate",
2226                                                                            &menu::Confirm,
2227                                                                            &focus_handle,
2228                                                                            window,
2229                                                                            cx,
2230                                                                        )
2231                                                                    }
2232                                                                })
2233                                                                .on_click(
2234                                                                    cx.listener(Self::handle_regenerate_click),
2235                                                                ),
2236                                                            ),
2237                                                    )
2238                                            )
2239                                        }),
2240                                )
2241                                .on_click(cx.listener({
2242                                    move |this, _, window, cx| {
2243                                        if let Some(message_text) =
2244                                            this.agent.read(cx).message(message_id).and_then(|message| {
2245                                                message.segments.first().and_then(|segment| {
2246                                                    match segment {
2247                                                        MessageSegment::Text(message_text) => {
2248                                                            Some(Into::<Arc<str>>::into(message_text.as_str()))
2249                                                        }
2250                                                        _ => {
2251                                                            None
2252                                                        }
2253                                                    }
2254                                                })
2255                                            })
2256                                        {
2257                                            this.start_editing_message(
2258                                                message_id,
2259                                                message_text,
2260                                                &message_creases,
2261                                                window,
2262                                                cx,
2263                                            );
2264                                        }
2265                                    }
2266                                })),
2267                        )
2268                }
2269                Role::Assistant => v_flex()
2270                    .id(("message-container", ix))
2271                    .px(RESPONSE_PADDING_X)
2272                    .gap_2()
2273                    .children(message_content)
2274                    .when(has_tool_uses, |parent| {
2275                        parent.children(tool_uses.into_iter().map(|tool_use| {
2276                            self.render_tool_use(tool_use, window, workspace.clone(), cx)
2277                        }))
2278                    }),
2279                Role::System => {
2280                    let colors = cx.theme().colors();
2281                    div().id(("message-container", ix)).py_1().px_2().child(
2282                        v_flex()
2283                            .bg(colors.editor_background)
2284                            .rounded_sm()
2285                            .child(div().p_4().children(message_content)),
2286                    )
2287                }
2288            }
2289        };
2290
2291        let after_editing_message = self
2292            .editing_message
2293            .as_ref()
2294            .map_or(false, |(editing_message_id, _)| {
2295                message_id > *editing_message_id
2296            });
2297
2298        let backdrop = div()
2299            .id(("backdrop", ix))
2300            .size_full()
2301            .absolute()
2302            .inset_0()
2303            .bg(panel_bg)
2304            .opacity(0.8)
2305            .block_mouse_except_scroll()
2306            .on_click(cx.listener(Self::handle_cancel_click));
2307
2308        v_flex()
2309            .w_full()
2310            .map(|parent| {
2311                if let Some(checkpoint) = checkpoint.filter(|_| !is_generating) {
2312                    let mut is_pending = false;
2313                    let mut error = None;
2314                    if let Some(last_restore_checkpoint) =
2315                        self.agent.read(cx).last_restore_checkpoint()
2316                    {
2317                        if last_restore_checkpoint.message_id() == message_id {
2318                            match last_restore_checkpoint {
2319                                LastRestoreCheckpoint::Pending { .. } => is_pending = true,
2320                                LastRestoreCheckpoint::Error { error: err, .. } => {
2321                                    error = Some(err.clone());
2322                                }
2323                            }
2324                        }
2325                    }
2326
2327                    let restore_checkpoint_button =
2328                        Button::new(("restore-checkpoint", ix), "Restore Checkpoint")
2329                            .icon(if error.is_some() {
2330                                IconName::XCircle
2331                            } else {
2332                                IconName::Undo
2333                            })
2334                            .icon_size(IconSize::XSmall)
2335                            .icon_position(IconPosition::Start)
2336                            .icon_color(if error.is_some() {
2337                                Some(Color::Error)
2338                            } else {
2339                                None
2340                            })
2341                            .label_size(LabelSize::XSmall)
2342                            .disabled(is_pending)
2343                            .on_click(cx.listener(move |this, _, _window, cx| {
2344                                this.agent.update(cx, |thread, cx| {
2345                                    thread
2346                                        .restore_checkpoint(checkpoint.clone(), cx)
2347                                        .detach_and_log_err(cx);
2348                                });
2349                            }));
2350
2351                    let restore_checkpoint_button = if is_pending {
2352                        restore_checkpoint_button
2353                            .with_animation(
2354                                ("pulsating-restore-checkpoint-button", ix),
2355                                Animation::new(Duration::from_secs(2))
2356                                    .repeat()
2357                                    .with_easing(pulsating_between(0.6, 1.)),
2358                                |label, delta| label.alpha(delta),
2359                            )
2360                            .into_any_element()
2361                    } else if let Some(error) = error {
2362                        restore_checkpoint_button
2363                            .tooltip(Tooltip::text(error.to_string()))
2364                            .into_any_element()
2365                    } else {
2366                        restore_checkpoint_button.into_any_element()
2367                    };
2368
2369                    parent.child(
2370                        h_flex()
2371                            .pt_2p5()
2372                            .px_2p5()
2373                            .w_full()
2374                            .gap_1()
2375                            .child(ui::Divider::horizontal())
2376                            .child(restore_checkpoint_button)
2377                            .child(ui::Divider::horizontal()),
2378                    )
2379                } else {
2380                    parent
2381                }
2382            })
2383            .when(is_first_message, |parent| {
2384                parent.child(self.render_rules_item(cx))
2385            })
2386            .child(styled_message)
2387            .children(loading_dots)
2388            .when(show_feedback, move |parent| {
2389                parent.child(feedback_items).when_some(
2390                    self.open_feedback_editors.get(&message_id),
2391                    move |parent, feedback_editor| {
2392                        let focus_handle = feedback_editor.focus_handle(cx);
2393                        parent.child(
2394                            v_flex()
2395                                .key_context("AgentFeedbackMessageEditor")
2396                                .on_action(cx.listener(move |this, _: &menu::Cancel, _, cx| {
2397                                    this.open_feedback_editors.remove(&message_id);
2398                                    cx.notify();
2399                                }))
2400                                .on_action(cx.listener(move |this, _: &menu::Confirm, _, cx| {
2401                                    this.submit_feedback_message(message_id, cx);
2402                                    cx.notify();
2403                                }))
2404                                .on_action(cx.listener(Self::confirm_editing_message))
2405                                .mb_2()
2406                                .mx_4()
2407                                .p_2()
2408                                .rounded_md()
2409                                .border_1()
2410                                .border_color(cx.theme().colors().border)
2411                                .bg(cx.theme().colors().editor_background)
2412                                .child(feedback_editor.clone())
2413                                .child(
2414                                    h_flex()
2415                                        .gap_1()
2416                                        .justify_end()
2417                                        .child(
2418                                            Button::new("dismiss-feedback-message", "Cancel")
2419                                                .label_size(LabelSize::Small)
2420                                                .key_binding(
2421                                                    KeyBinding::for_action_in(
2422                                                        &menu::Cancel,
2423                                                        &focus_handle,
2424                                                        window,
2425                                                        cx,
2426                                                    )
2427                                                    .map(|kb| kb.size(rems_from_px(10.))),
2428                                                )
2429                                                .on_click(cx.listener(
2430                                                    move |this, _, _window, cx| {
2431                                                        this.open_feedback_editors
2432                                                            .remove(&message_id);
2433                                                        cx.notify();
2434                                                    },
2435                                                )),
2436                                        )
2437                                        .child(
2438                                            Button::new(
2439                                                "submit-feedback-message",
2440                                                "Share Feedback",
2441                                            )
2442                                            .style(ButtonStyle::Tinted(ui::TintColor::Accent))
2443                                            .label_size(LabelSize::Small)
2444                                            .key_binding(
2445                                                KeyBinding::for_action_in(
2446                                                    &menu::Confirm,
2447                                                    &focus_handle,
2448                                                    window,
2449                                                    cx,
2450                                                )
2451                                                .map(|kb| kb.size(rems_from_px(10.))),
2452                                            )
2453                                            .on_click(
2454                                                cx.listener(move |this, _, _window, cx| {
2455                                                    this.submit_feedback_message(message_id, cx);
2456                                                    cx.notify()
2457                                                }),
2458                                            ),
2459                                        ),
2460                                ),
2461                        )
2462                    },
2463                )
2464            })
2465            .when(after_editing_message, |parent| {
2466                // Backdrop to dim out the whole thread below the editing user message
2467                parent.relative().child(backdrop)
2468            })
2469            .into_any()
2470    }
2471
2472    fn render_message_content(
2473        &self,
2474        message_id: MessageId,
2475        rendered_message: &RenderedMessage,
2476        has_tool_uses: bool,
2477        workspace: WeakEntity<Workspace>,
2478        window: &mut Window,
2479        cx: &mut Context<Self>,
2480    ) -> impl IntoElement {
2481        let is_last_message = self.messages.last() == Some(&message_id);
2482        let is_generating = self.agent.read(cx).is_generating();
2483        let pending_thinking_segment_index = if is_generating && is_last_message && !has_tool_uses {
2484            rendered_message
2485                .segments
2486                .iter()
2487                .enumerate()
2488                .next_back()
2489                .filter(|(_, segment)| matches!(segment, RenderedMessageSegment::Thinking { .. }))
2490                .map(|(index, _)| index)
2491        } else {
2492            None
2493        };
2494
2495        let message_role = self
2496            .agent
2497            .read(cx)
2498            .message(message_id)
2499            .map(|m| m.role)
2500            .unwrap_or(Role::User);
2501
2502        let is_assistant_message = message_role == Role::Assistant;
2503        let is_user_message = message_role == Role::User;
2504
2505        v_flex()
2506            .text_ui(cx)
2507            .gap_2()
2508            .when(is_user_message, |this| this.text_xs())
2509            .children(
2510                rendered_message.segments.iter().enumerate().map(
2511                    |(index, segment)| match segment {
2512                        RenderedMessageSegment::Thinking {
2513                            content,
2514                            scroll_handle,
2515                        } => self
2516                            .render_message_thinking_segment(
2517                                message_id,
2518                                index,
2519                                content.clone(),
2520                                &scroll_handle,
2521                                Some(index) == pending_thinking_segment_index,
2522                                window,
2523                                cx,
2524                            )
2525                            .into_any_element(),
2526                        RenderedMessageSegment::Text(markdown) => {
2527                            let markdown_element = MarkdownElement::new(
2528                                markdown.clone(),
2529                                if is_user_message {
2530                                    let mut style = default_markdown_style(window, cx);
2531                                    let mut text_style = window.text_style();
2532                                    let theme_settings = ThemeSettings::get_global(cx);
2533
2534                                    let buffer_font = theme_settings.buffer_font.family.clone();
2535                                    let buffer_font_size = TextSize::Small.rems(cx);
2536
2537                                    text_style.refine(&TextStyleRefinement {
2538                                        font_family: Some(buffer_font),
2539                                        font_size: Some(buffer_font_size.into()),
2540                                        ..Default::default()
2541                                    });
2542
2543                                    style.base_text_style = text_style;
2544                                    style
2545                                } else {
2546                                    default_markdown_style(window, cx)
2547                                },
2548                            );
2549
2550                            let markdown_element = if is_assistant_message {
2551                                markdown_element.code_block_renderer(
2552                                    markdown::CodeBlockRenderer::Custom {
2553                                        render: Arc::new({
2554                                            let workspace = workspace.clone();
2555                                            let active_thread = cx.entity();
2556                                            move |kind,
2557                                                  parsed_markdown,
2558                                                  range,
2559                                                  metadata,
2560                                                  window,
2561                                                  cx| {
2562                                                render_markdown_code_block(
2563                                                    message_id,
2564                                                    range.start,
2565                                                    kind,
2566                                                    parsed_markdown,
2567                                                    metadata,
2568                                                    active_thread.clone(),
2569                                                    workspace.clone(),
2570                                                    window,
2571                                                    cx,
2572                                                )
2573                                            }
2574                                        }),
2575                                        transform: Some(Arc::new({
2576                                            let active_thread = cx.entity();
2577
2578                                            move |element, range, _, _, cx| {
2579                                                let is_expanded = active_thread
2580                                                    .read(cx)
2581                                                    .is_codeblock_expanded(message_id, range.start);
2582
2583                                                if is_expanded {
2584                                                    return element;
2585                                                }
2586
2587                                                element
2588                                            }
2589                                        })),
2590                                    },
2591                                )
2592                            } else {
2593                                markdown_element.code_block_renderer(
2594                                    markdown::CodeBlockRenderer::Default {
2595                                        copy_button: false,
2596                                        copy_button_on_hover: false,
2597                                        border: true,
2598                                    },
2599                                )
2600                            };
2601
2602                            div()
2603                                .child(markdown_element.on_url_click({
2604                                    let workspace = self.workspace.clone();
2605                                    move |text, window, cx| {
2606                                        open_markdown_link(text, workspace.clone(), window, cx);
2607                                    }
2608                                }))
2609                                .into_any_element()
2610                        }
2611                        RenderedMessageSegment::ToolUseCard(status, card) => {
2612                            card.render(status, window, workspace.clone(), cx)
2613                        }
2614                        RenderedMessageSegment::ToolUseMarkdown(rendered) => v_flex()
2615                            .child(MarkdownElement::new(
2616                                rendered.label.clone(),
2617                                default_markdown_style(window, cx),
2618                            ))
2619                            .child(MarkdownElement::new(
2620                                rendered.input.clone(),
2621                                default_markdown_style(window, cx),
2622                            ))
2623                            .child(MarkdownElement::new(
2624                                rendered.output.clone(),
2625                                default_markdown_style(window, cx),
2626                            ))
2627                            .into_any(), // todo!()
2628                    },
2629                ),
2630            )
2631    }
2632
2633    fn tool_card_border_color(&self, cx: &Context<Self>) -> Hsla {
2634        cx.theme().colors().border.opacity(0.5)
2635    }
2636
2637    fn tool_card_header_bg(&self, cx: &Context<Self>) -> Hsla {
2638        cx.theme()
2639            .colors()
2640            .element_background
2641            .blend(cx.theme().colors().editor_foreground.opacity(0.025))
2642    }
2643
2644    fn render_ui_notification(
2645        &self,
2646        message_content: impl IntoIterator<Item = impl IntoElement>,
2647        ix: usize,
2648        cx: &mut Context<Self>,
2649    ) -> Stateful<Div> {
2650        let colors = cx.theme().colors();
2651        div().id(("message-container", ix)).py_1().px_2().child(
2652            v_flex()
2653                .w_full()
2654                .bg(colors.editor_background)
2655                .rounded_sm()
2656                .child(
2657                    h_flex()
2658                        .w_full()
2659                        .p_2()
2660                        .gap_2()
2661                        .child(
2662                            div().flex_none().child(
2663                                Icon::new(IconName::Warning)
2664                                    .size(IconSize::Small)
2665                                    .color(Color::Warning),
2666                            ),
2667                        )
2668                        .child(
2669                            v_flex()
2670                                .flex_1()
2671                                .min_w_0()
2672                                .text_size(TextSize::Small.rems(cx))
2673                                .text_color(cx.theme().colors().text_muted)
2674                                .children(message_content),
2675                        ),
2676                ),
2677        )
2678    }
2679
2680    fn render_message_thinking_segment(
2681        &self,
2682        message_id: MessageId,
2683        ix: usize,
2684        markdown: Entity<Markdown>,
2685        scroll_handle: &ScrollHandle,
2686        pending: bool,
2687        window: &Window,
2688        cx: &Context<Self>,
2689    ) -> impl IntoElement {
2690        let is_open = self
2691            .expanded_thinking_segments
2692            .get(&(message_id, ix))
2693            .copied()
2694            .unwrap_or_default();
2695
2696        let editor_bg = cx.theme().colors().panel_background;
2697
2698        div().map(|this| {
2699            if pending {
2700                this.v_flex()
2701                    .mt_neg_2()
2702                    .mb_1p5()
2703                    .child(
2704                        h_flex()
2705                            .group("disclosure-header")
2706                            .justify_between()
2707                            .child(
2708                                h_flex()
2709                                    .gap_1p5()
2710                                    .child(
2711                                        Icon::new(IconName::LightBulb)
2712                                            .size(IconSize::XSmall)
2713                                            .color(Color::Muted),
2714                                    )
2715                                    .child(AnimatedLabel::new("Thinking").size(LabelSize::Small)),
2716                            )
2717                            .child(
2718                                h_flex()
2719                                    .gap_1()
2720                                    .child(
2721                                        div().visible_on_hover("disclosure-header").child(
2722                                            Disclosure::new("thinking-disclosure", is_open)
2723                                                .opened_icon(IconName::ChevronUp)
2724                                                .closed_icon(IconName::ChevronDown)
2725                                                .on_click(cx.listener({
2726                                                    move |this, _event, _window, _cx| {
2727                                                        let is_open = this
2728                                                            .expanded_thinking_segments
2729                                                            .entry((message_id, ix))
2730                                                            .or_insert(false);
2731
2732                                                        *is_open = !*is_open;
2733                                                    }
2734                                                })),
2735                                        ),
2736                                    )
2737                                    .child({
2738                                        Icon::new(IconName::ArrowCircle)
2739                                            .color(Color::Accent)
2740                                            .size(IconSize::Small)
2741                                            .with_animation(
2742                                                "arrow-circle",
2743                                                Animation::new(Duration::from_secs(2)).repeat(),
2744                                                |icon, delta| {
2745                                                    icon.transform(Transformation::rotate(
2746                                                        percentage(delta),
2747                                                    ))
2748                                                },
2749                                            )
2750                                    }),
2751                            ),
2752                    )
2753                    .when(!is_open, |this| {
2754                        let gradient_overlay = div()
2755                            .rounded_b_lg()
2756                            .h_full()
2757                            .absolute()
2758                            .w_full()
2759                            .bottom_0()
2760                            .left_0()
2761                            .bg(linear_gradient(
2762                                180.,
2763                                linear_color_stop(editor_bg, 1.),
2764                                linear_color_stop(editor_bg.opacity(0.2), 0.),
2765                            ));
2766
2767                        this.child(
2768                            div()
2769                                .relative()
2770                                .bg(editor_bg)
2771                                .rounded_b_lg()
2772                                .mt_2()
2773                                .pl_4()
2774                                .child(
2775                                    div()
2776                                        .id(("thinking-content", ix))
2777                                        .max_h_20()
2778                                        .track_scroll(scroll_handle)
2779                                        .text_ui_sm(cx)
2780                                        .overflow_hidden()
2781                                        .child(
2782                                            MarkdownElement::new(
2783                                                markdown.clone(),
2784                                                default_markdown_style(window, cx),
2785                                            )
2786                                            .on_url_click({
2787                                                let workspace = self.workspace.clone();
2788                                                move |text, window, cx| {
2789                                                    open_markdown_link(
2790                                                        text,
2791                                                        workspace.clone(),
2792                                                        window,
2793                                                        cx,
2794                                                    );
2795                                                }
2796                                            }),
2797                                        ),
2798                                )
2799                                .child(gradient_overlay),
2800                        )
2801                    })
2802                    .when(is_open, |this| {
2803                        this.child(
2804                            div()
2805                                .id(("thinking-content", ix))
2806                                .h_full()
2807                                .bg(editor_bg)
2808                                .text_ui_sm(cx)
2809                                .child(
2810                                    MarkdownElement::new(
2811                                        markdown.clone(),
2812                                        default_markdown_style(window, cx),
2813                                    )
2814                                    .on_url_click({
2815                                        let workspace = self.workspace.clone();
2816                                        move |text, window, cx| {
2817                                            open_markdown_link(text, workspace.clone(), window, cx);
2818                                        }
2819                                    }),
2820                                ),
2821                        )
2822                    })
2823            } else {
2824                this.v_flex()
2825                    .mt_neg_2()
2826                    .child(
2827                        h_flex()
2828                            .group("disclosure-header")
2829                            .pr_1()
2830                            .justify_between()
2831                            .opacity(0.8)
2832                            .hover(|style| style.opacity(1.))
2833                            .child(
2834                                h_flex()
2835                                    .gap_1p5()
2836                                    .child(
2837                                        Icon::new(IconName::LightBulb)
2838                                            .size(IconSize::XSmall)
2839                                            .color(Color::Muted),
2840                                    )
2841                                    .child(Label::new("Thought Process").size(LabelSize::Small)),
2842                            )
2843                            .child(
2844                                div().visible_on_hover("disclosure-header").child(
2845                                    Disclosure::new("thinking-disclosure", is_open)
2846                                        .opened_icon(IconName::ChevronUp)
2847                                        .closed_icon(IconName::ChevronDown)
2848                                        .on_click(cx.listener({
2849                                            move |this, _event, _window, _cx| {
2850                                                let is_open = this
2851                                                    .expanded_thinking_segments
2852                                                    .entry((message_id, ix))
2853                                                    .or_insert(false);
2854
2855                                                *is_open = !*is_open;
2856                                            }
2857                                        })),
2858                                ),
2859                            ),
2860                    )
2861                    .child(
2862                        div()
2863                            .id(("thinking-content", ix))
2864                            .relative()
2865                            .mt_1p5()
2866                            .ml_1p5()
2867                            .pl_2p5()
2868                            .border_l_1()
2869                            .border_color(cx.theme().colors().border_variant)
2870                            .text_ui_sm(cx)
2871                            .when(is_open, |this| {
2872                                this.child(
2873                                    MarkdownElement::new(
2874                                        markdown.clone(),
2875                                        default_markdown_style(window, cx),
2876                                    )
2877                                    .on_url_click({
2878                                        let workspace = self.workspace.clone();
2879                                        move |text, window, cx| {
2880                                            open_markdown_link(text, workspace.clone(), window, cx);
2881                                        }
2882                                    }),
2883                                )
2884                            }),
2885                    )
2886            }
2887        })
2888    }
2889
2890    fn render_tool_use(
2891        &self,
2892        tool_use: ToolUse,
2893        window: &mut Window,
2894        workspace: WeakEntity<Workspace>,
2895        cx: &mut Context<Self>,
2896    ) -> impl IntoElement + use<> {
2897        if let Some(card) = self.agent.read(cx).card_for_tool(&tool_use.id) {
2898            return card.render(&tool_use.status, window, workspace, cx);
2899        }
2900
2901        let is_open = self
2902            .expanded_tool_uses
2903            .get(&tool_use.id)
2904            .copied()
2905            .unwrap_or_default();
2906
2907        let is_status_finished = matches!(&tool_use.status, ToolUseStatus::Finished(_));
2908
2909        let fs = self
2910            .workspace
2911            .upgrade()
2912            .map(|workspace| workspace.read(cx).app_state().fs.clone());
2913        let needs_confirmation = matches!(&tool_use.status, ToolUseStatus::NeedsConfirmation);
2914        let needs_confirmation_tools = tool_use.needs_confirmation;
2915
2916        let status_icons = div().child(match &tool_use.status {
2917            ToolUseStatus::NeedsConfirmation => {
2918                let icon = Icon::new(IconName::Warning)
2919                    .color(Color::Warning)
2920                    .size(IconSize::Small);
2921                icon.into_any_element()
2922            }
2923            ToolUseStatus::Pending
2924            | ToolUseStatus::InputStillStreaming
2925            | ToolUseStatus::Running => {
2926                let icon = Icon::new(IconName::ArrowCircle)
2927                    .color(Color::Accent)
2928                    .size(IconSize::Small);
2929                icon.with_animation(
2930                    "arrow-circle",
2931                    Animation::new(Duration::from_secs(2)).repeat(),
2932                    |icon, delta| icon.transform(Transformation::rotate(percentage(delta))),
2933                )
2934                .into_any_element()
2935            }
2936            ToolUseStatus::Finished(_) => div().w_0().into_any_element(),
2937            ToolUseStatus::Error(_) => {
2938                let icon = Icon::new(IconName::Close)
2939                    .color(Color::Error)
2940                    .size(IconSize::Small);
2941                icon.into_any_element()
2942            }
2943        });
2944
2945        let rendered_tool_use = self.rendered_tool_uses.get(&tool_use.id).cloned();
2946        let results_content_container = || v_flex().p_2().gap_0p5();
2947
2948        let results_content = v_flex()
2949            .gap_1()
2950            .child(
2951                results_content_container()
2952                    .child(
2953                        Label::new("Input")
2954                            .size(LabelSize::XSmall)
2955                            .color(Color::Muted)
2956                            .buffer_font(cx),
2957                    )
2958                    .child(
2959                        div()
2960                            .w_full()
2961                            .text_ui_sm(cx)
2962                            .children(rendered_tool_use.as_ref().map(|rendered| {
2963                                MarkdownElement::new(
2964                                    rendered.input.clone(),
2965                                    tool_use_markdown_style(window, cx),
2966                                )
2967                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2968                                    copy_button: false,
2969                                    copy_button_on_hover: false,
2970                                    border: false,
2971                                })
2972                                .on_url_click({
2973                                    let workspace = self.workspace.clone();
2974                                    move |text, window, cx| {
2975                                        open_markdown_link(text, workspace.clone(), window, cx);
2976                                    }
2977                                })
2978                            })),
2979                    ),
2980            )
2981            .map(|container| match tool_use.status {
2982                ToolUseStatus::Finished(_) => container.child(
2983                    results_content_container()
2984                        .border_t_1()
2985                        .border_color(self.tool_card_border_color(cx))
2986                        .child(
2987                            Label::new("Result")
2988                                .size(LabelSize::XSmall)
2989                                .color(Color::Muted)
2990                                .buffer_font(cx),
2991                        )
2992                        .child(div().w_full().text_ui_sm(cx).children(
2993                            rendered_tool_use.as_ref().map(|rendered| {
2994                                MarkdownElement::new(
2995                                    rendered.output.clone(),
2996                                    tool_use_markdown_style(window, cx),
2997                                )
2998                                .code_block_renderer(markdown::CodeBlockRenderer::Default {
2999                                    copy_button: false,
3000                                    copy_button_on_hover: false,
3001                                    border: false,
3002                                })
3003                                .on_url_click({
3004                                    let workspace = self.workspace.clone();
3005                                    move |text, window, cx| {
3006                                        open_markdown_link(text, workspace.clone(), window, cx);
3007                                    }
3008                                })
3009                                .into_any_element()
3010                            }),
3011                        )),
3012                ),
3013                ToolUseStatus::InputStillStreaming | ToolUseStatus::Running => container.child(
3014                    results_content_container()
3015                        .border_t_1()
3016                        .border_color(self.tool_card_border_color(cx))
3017                        .child(
3018                            h_flex()
3019                                .gap_1()
3020                                .child(
3021                                    Icon::new(IconName::ArrowCircle)
3022                                        .size(IconSize::Small)
3023                                        .color(Color::Accent)
3024                                        .with_animation(
3025                                            "arrow-circle",
3026                                            Animation::new(Duration::from_secs(2)).repeat(),
3027                                            |icon, delta| {
3028                                                icon.transform(Transformation::rotate(percentage(
3029                                                    delta,
3030                                                )))
3031                                            },
3032                                        ),
3033                                )
3034                                .child(
3035                                    Label::new("Running…")
3036                                        .size(LabelSize::XSmall)
3037                                        .color(Color::Muted)
3038                                        .buffer_font(cx),
3039                                ),
3040                        ),
3041                ),
3042                ToolUseStatus::Error(_) => container.child(
3043                    results_content_container()
3044                        .border_t_1()
3045                        .border_color(self.tool_card_border_color(cx))
3046                        .child(
3047                            Label::new("Error")
3048                                .size(LabelSize::XSmall)
3049                                .color(Color::Muted)
3050                                .buffer_font(cx),
3051                        )
3052                        .child(
3053                            div()
3054                                .text_ui_sm(cx)
3055                                .children(rendered_tool_use.as_ref().map(|rendered| {
3056                                    MarkdownElement::new(
3057                                        rendered.output.clone(),
3058                                        tool_use_markdown_style(window, cx),
3059                                    )
3060                                    .on_url_click({
3061                                        let workspace = self.workspace.clone();
3062                                        move |text, window, cx| {
3063                                            open_markdown_link(text, workspace.clone(), window, cx);
3064                                        }
3065                                    })
3066                                    .into_any_element()
3067                                })),
3068                        ),
3069                ),
3070                ToolUseStatus::Pending => container,
3071                ToolUseStatus::NeedsConfirmation => container.child(
3072                    results_content_container()
3073                        .border_t_1()
3074                        .border_color(self.tool_card_border_color(cx))
3075                        .child(
3076                            Label::new("Asking Permission")
3077                                .size(LabelSize::Small)
3078                                .color(Color::Muted)
3079                                .buffer_font(cx),
3080                        ),
3081                ),
3082            });
3083
3084        let gradient_overlay = |color: Hsla| {
3085            div()
3086                .h_full()
3087                .absolute()
3088                .w_12()
3089                .bottom_0()
3090                .map(|element| {
3091                    if is_status_finished {
3092                        element.right_6()
3093                    } else {
3094                        element.right(px(44.))
3095                    }
3096                })
3097                .bg(linear_gradient(
3098                    90.,
3099                    linear_color_stop(color, 1.),
3100                    linear_color_stop(color.opacity(0.2), 0.),
3101                ))
3102        };
3103
3104        v_flex().gap_1().mb_2().map(|element| {
3105            if !needs_confirmation_tools {
3106                element.child(
3107                    v_flex()
3108                        .child(
3109                            h_flex()
3110                                .group("disclosure-header")
3111                                .relative()
3112                                .gap_1p5()
3113                                .justify_between()
3114                                .opacity(0.8)
3115                                .hover(|style| style.opacity(1.))
3116                                .when(!is_status_finished, |this| this.pr_2())
3117                                .child(
3118                                    h_flex()
3119                                        .id("tool-label-container")
3120                                        .gap_1p5()
3121                                        .max_w_full()
3122                                        .overflow_x_scroll()
3123                                        .child(
3124                                            Icon::new(tool_use.icon)
3125                                                .size(IconSize::XSmall)
3126                                                .color(Color::Muted),
3127                                        )
3128                                        .child(
3129                                            h_flex().pr_8().text_size(rems(0.8125)).children(
3130                                                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| {
3131                                                    open_markdown_link(text, workspace.clone(), window, cx);
3132                                                }}))
3133                                            ),
3134                                        ),
3135                                )
3136                                .child(
3137                                    h_flex()
3138                                        .gap_1()
3139                                        .child(
3140                                            div().visible_on_hover("disclosure-header").child(
3141                                                Disclosure::new("tool-use-disclosure", is_open)
3142                                                    .opened_icon(IconName::ChevronUp)
3143                                                    .closed_icon(IconName::ChevronDown)
3144                                                    .on_click(cx.listener({
3145                                                        let tool_use_id = tool_use.id.clone();
3146                                                        move |this, _event, _window, _cx| {
3147                                                            let is_open = this
3148                                                                .expanded_tool_uses
3149                                                                .entry(tool_use_id.clone())
3150                                                                .or_insert(false);
3151
3152                                                            *is_open = !*is_open;
3153                                                        }
3154                                                    })),
3155                                            ),
3156                                        )
3157                                        .child(status_icons),
3158                                )
3159                                .child(gradient_overlay(cx.theme().colors().panel_background)),
3160                        )
3161                        .map(|parent| {
3162                            if !is_open {
3163                                return parent;
3164                            }
3165
3166                            parent.child(
3167                                v_flex()
3168                                    .mt_1()
3169                                    .border_1()
3170                                    .border_color(self.tool_card_border_color(cx))
3171                                    .bg(cx.theme().colors().editor_background)
3172                                    .rounded_lg()
3173                                    .child(results_content),
3174                            )
3175                        }),
3176                )
3177            } else {
3178                v_flex()
3179                    .mb_2()
3180                    .rounded_lg()
3181                    .border_1()
3182                    .border_color(self.tool_card_border_color(cx))
3183                    .overflow_hidden()
3184                    .child(
3185                        h_flex()
3186                            .group("disclosure-header")
3187                            .relative()
3188                            .justify_between()
3189                            .py_1()
3190                            .map(|element| {
3191                                if is_status_finished {
3192                                    element.pl_2().pr_0p5()
3193                                } else {
3194                                    element.px_2()
3195                                }
3196                            })
3197                            .bg(self.tool_card_header_bg(cx))
3198                            .map(|element| {
3199                                if is_open {
3200                                    element.border_b_1().rounded_t_md()
3201                                } else if needs_confirmation {
3202                                    element.rounded_t_md()
3203                                } else {
3204                                    element.rounded_md()
3205                                }
3206                            })
3207                            .border_color(self.tool_card_border_color(cx))
3208                            .child(
3209                                h_flex()
3210                                    .id("tool-label-container")
3211                                    .gap_1p5()
3212                                    .max_w_full()
3213                                    .overflow_x_scroll()
3214                                    .child(
3215                                        Icon::new(tool_use.icon)
3216                                            .size(IconSize::XSmall)
3217                                            .color(Color::Muted),
3218                                    )
3219                                    .child(
3220                                        h_flex().pr_8().text_ui_sm(cx).children(
3221                                            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| {
3222                                                open_markdown_link(text, workspace.clone(), window, cx);
3223                                            }}))
3224                                        ),
3225                                    ),
3226                            )
3227                            .child(
3228                                h_flex()
3229                                    .gap_1()
3230                                    .child(
3231                                        div().visible_on_hover("disclosure-header").child(
3232                                            Disclosure::new("tool-use-disclosure", is_open)
3233                                                .opened_icon(IconName::ChevronUp)
3234                                                .closed_icon(IconName::ChevronDown)
3235                                                .on_click(cx.listener({
3236                                                    let tool_use_id = tool_use.id.clone();
3237                                                    move |this, _event, _window, _cx| {
3238                                                        let is_open = this
3239                                                            .expanded_tool_uses
3240                                                            .entry(tool_use_id.clone())
3241                                                            .or_insert(false);
3242
3243                                                        *is_open = !*is_open;
3244                                                    }
3245                                                })),
3246                                        ),
3247                                    )
3248                                    .child(status_icons),
3249                            )
3250                            .child(gradient_overlay(self.tool_card_header_bg(cx))),
3251                    )
3252                    .map(|parent| {
3253                        if !is_open {
3254                            return parent;
3255                        }
3256
3257                        parent.child(
3258                            v_flex()
3259                                .bg(cx.theme().colors().editor_background)
3260                                .map(|element| {
3261                                    if  needs_confirmation {
3262                                        element.rounded_none()
3263                                    } else {
3264                                        element.rounded_b_lg()
3265                                    }
3266                                })
3267                                .child(results_content),
3268                        )
3269                    })
3270                    .when(needs_confirmation, |this| {
3271                        this.child(
3272                            h_flex()
3273                                .py_1()
3274                                .pl_2()
3275                                .pr_1()
3276                                .gap_1()
3277                                .justify_between()
3278                                .flex_wrap()
3279                                .bg(cx.theme().colors().editor_background)
3280                                .border_t_1()
3281                                .border_color(self.tool_card_border_color(cx))
3282                                .rounded_b_lg()
3283                                .child(
3284                                    AnimatedLabel::new("Waiting for Confirmation").size(LabelSize::Small)
3285                                )
3286                                .child(
3287                                    h_flex()
3288                                        .gap_0p5()
3289                                        .child({
3290                                            let tool_id = tool_use.id.clone();
3291                                            Button::new(
3292                                                "always-allow-tool-action",
3293                                                "Always Allow",
3294                                            )
3295                                            .label_size(LabelSize::Small)
3296                                            .icon(IconName::CheckDouble)
3297                                            .icon_position(IconPosition::Start)
3298                                            .icon_size(IconSize::Small)
3299                                            .icon_color(Color::Success)
3300                                            .tooltip(move |window, cx|  {
3301                                                Tooltip::with_meta(
3302                                                    "Never ask for permission",
3303                                                    None,
3304                                                    "Restore the original behavior in your Agent Panel settings",
3305                                                    window,
3306                                                    cx,
3307                                                )
3308                                            })
3309                                            .on_click(cx.listener(
3310                                                move |this, event, window, cx| {
3311                                                    if let Some(fs) = fs.clone() {
3312                                                        update_settings_file::<AgentSettings>(
3313                                                            fs.clone(),
3314                                                            cx,
3315                                                            |settings, _| {
3316                                                                settings.set_always_allow_tool_actions(true);
3317                                                            },
3318                                                        );
3319                                                    }
3320                                                    this.handle_allow_tool(
3321                                                        tool_id.clone(),
3322                                                        event,
3323                                                        window,
3324                                                        cx,
3325                                                    )
3326                                                },
3327                                            ))
3328                                        })
3329                                        .child(ui::Divider::vertical())
3330                                        .child({
3331                                            let tool_id = tool_use.id.clone();
3332                                            Button::new("allow-tool-action", "Allow")
3333                                                .label_size(LabelSize::Small)
3334                                                .icon(IconName::Check)
3335                                                .icon_position(IconPosition::Start)
3336                                                .icon_size(IconSize::Small)
3337                                                .icon_color(Color::Success)
3338                                                .on_click(cx.listener(
3339                                                    move |this, event, window, cx| {
3340                                                        this.handle_allow_tool(
3341                                                            tool_id.clone(),
3342                                                            event,
3343                                                            window,
3344                                                            cx,
3345                                                        )
3346                                                    },
3347                                                ))
3348                                        })
3349                                        .child({
3350                                            let tool_id = tool_use.id.clone();
3351                                            let tool_name: Arc<str> = tool_use.name.into();
3352                                            Button::new("deny-tool", "Deny")
3353                                                .label_size(LabelSize::Small)
3354                                                .icon(IconName::Close)
3355                                                .icon_position(IconPosition::Start)
3356                                                .icon_size(IconSize::Small)
3357                                                .icon_color(Color::Error)
3358                                                .on_click(cx.listener(
3359                                                    move |this, event, window, cx| {
3360                                                        this.handle_deny_tool(
3361                                                            tool_id.clone(),
3362                                                            tool_name.clone(),
3363                                                            event,
3364                                                            window,
3365                                                            cx,
3366                                                        )
3367                                                    },
3368                                                ))
3369                                        }),
3370                                ),
3371                        )
3372                    })
3373            }
3374        }).into_any_element()
3375    }
3376
3377    fn render_rules_item(&self, cx: &Context<Self>) -> AnyElement {
3378        let project_context = self.agent.read(cx).project_context();
3379        let project_context = project_context.borrow();
3380        let Some(project_context) = project_context.as_ref() else {
3381            return div().into_any();
3382        };
3383
3384        let user_rules_text = if project_context.user_rules.is_empty() {
3385            None
3386        } else if project_context.user_rules.len() == 1 {
3387            let user_rules = &project_context.user_rules[0];
3388
3389            match user_rules.title.as_ref() {
3390                Some(title) => Some(format!("Using \"{title}\" user rule")),
3391                None => Some("Using user rule".into()),
3392            }
3393        } else {
3394            Some(format!(
3395                "Using {} user rules",
3396                project_context.user_rules.len()
3397            ))
3398        };
3399
3400        let first_user_rules_id = project_context
3401            .user_rules
3402            .first()
3403            .map(|user_rules| user_rules.uuid.0);
3404
3405        let rules_files = project_context
3406            .worktrees
3407            .iter()
3408            .filter_map(|worktree| worktree.rules_file.as_ref())
3409            .collect::<Vec<_>>();
3410
3411        let rules_file_text = match rules_files.as_slice() {
3412            &[] => None,
3413            &[rules_file] => Some(format!(
3414                "Using project {:?} file",
3415                rules_file.path_in_worktree
3416            )),
3417            rules_files => Some(format!("Using {} project rules files", rules_files.len())),
3418        };
3419
3420        if user_rules_text.is_none() && rules_file_text.is_none() {
3421            return div().into_any();
3422        }
3423
3424        v_flex()
3425            .pt_2()
3426            .px_2p5()
3427            .gap_1()
3428            .when_some(user_rules_text, |parent, user_rules_text| {
3429                parent.child(
3430                    h_flex()
3431                        .w_full()
3432                        .child(
3433                            Icon::new(RULES_ICON)
3434                                .size(IconSize::XSmall)
3435                                .color(Color::Disabled),
3436                        )
3437                        .child(
3438                            Label::new(user_rules_text)
3439                                .size(LabelSize::XSmall)
3440                                .color(Color::Muted)
3441                                .truncate()
3442                                .buffer_font(cx)
3443                                .ml_1p5()
3444                                .mr_0p5(),
3445                        )
3446                        .child(
3447                            IconButton::new("open-prompt-library", IconName::ArrowUpRightAlt)
3448                                .shape(ui::IconButtonShape::Square)
3449                                .icon_size(IconSize::XSmall)
3450                                .icon_color(Color::Ignored)
3451                                // TODO: Figure out a way to pass focus handle here so we can display the `OpenRulesLibrary`  keybinding
3452                                .tooltip(Tooltip::text("View User Rules"))
3453                                .on_click(move |_event, window, cx| {
3454                                    window.dispatch_action(
3455                                        Box::new(OpenRulesLibrary {
3456                                            prompt_to_select: first_user_rules_id,
3457                                        }),
3458                                        cx,
3459                                    )
3460                                }),
3461                        ),
3462                )
3463            })
3464            .when_some(rules_file_text, |parent, rules_file_text| {
3465                parent.child(
3466                    h_flex()
3467                        .w_full()
3468                        .child(
3469                            Icon::new(IconName::File)
3470                                .size(IconSize::XSmall)
3471                                .color(Color::Disabled),
3472                        )
3473                        .child(
3474                            Label::new(rules_file_text)
3475                                .size(LabelSize::XSmall)
3476                                .color(Color::Muted)
3477                                .buffer_font(cx)
3478                                .ml_1p5()
3479                                .mr_0p5(),
3480                        )
3481                        .child(
3482                            IconButton::new("open-rule", IconName::ArrowUpRightAlt)
3483                                .shape(ui::IconButtonShape::Square)
3484                                .icon_size(IconSize::XSmall)
3485                                .icon_color(Color::Ignored)
3486                                .on_click(cx.listener(Self::handle_open_rules))
3487                                .tooltip(Tooltip::text("View Rules")),
3488                        ),
3489                )
3490            })
3491            .into_any()
3492    }
3493
3494    fn handle_allow_tool(
3495        &mut self,
3496        tool_use_id: LanguageModelToolUseId,
3497        _: &ClickEvent,
3498        window: &mut Window,
3499        cx: &mut Context<Self>,
3500    ) {
3501        if let Some(PendingToolUseStatus::NeedsConfirmation(c)) = self
3502            .agent
3503            .read(cx)
3504            .pending_tool(&tool_use_id)
3505            .map(|tool_use| tool_use.status.clone())
3506        {
3507            self.agent.update(cx, |thread, cx| {
3508                if let Some(configured) = thread.get_or_init_configured_model(cx) {
3509                    thread.run_tool(
3510                        c.tool_use_id.clone(),
3511                        c.ui_text.clone(),
3512                        c.input.clone(),
3513                        c.request.clone(),
3514                        c.tool.clone(),
3515                        configured.model,
3516                        Some(window.window_handle()),
3517                        cx,
3518                    );
3519                }
3520            });
3521        }
3522    }
3523
3524    fn handle_deny_tool(
3525        &mut self,
3526        tool_use_id: LanguageModelToolUseId,
3527        tool_name: Arc<str>,
3528        _: &ClickEvent,
3529        window: &mut Window,
3530        cx: &mut Context<Self>,
3531    ) {
3532        let window_handle = window.window_handle();
3533        self.agent.update(cx, |thread, cx| {
3534            thread.deny_tool_use(tool_use_id, tool_name, Some(window_handle), cx);
3535        });
3536    }
3537
3538    fn handle_open_rules(&mut self, _: &ClickEvent, window: &mut Window, cx: &mut Context<Self>) {
3539        let project_context = self.agent.read(cx).project_context();
3540        let project_context = project_context.borrow();
3541        let Some(project_context) = project_context.as_ref() else {
3542            return;
3543        };
3544
3545        let project_entry_ids = project_context
3546            .worktrees
3547            .iter()
3548            .flat_map(|worktree| worktree.rules_file.as_ref())
3549            .map(|rules_file| ProjectEntryId::from_usize(rules_file.project_entry_id))
3550            .collect::<Vec<_>>();
3551
3552        self.workspace
3553            .update(cx, move |workspace, cx| {
3554                // TODO: Open a multibuffer instead? In some cases this doesn't make the set of rules
3555                // files clear. For example, if rules file 1 is already open but rules file 2 is not,
3556                // this would open and focus rules file 2 in a tab that is not next to rules file 1.
3557                let project = workspace.project().read(cx);
3558                let project_paths = project_entry_ids
3559                    .into_iter()
3560                    .flat_map(|entry_id| project.path_for_entry(entry_id, cx))
3561                    .collect::<Vec<_>>();
3562                for project_path in project_paths {
3563                    workspace
3564                        .open_path(project_path, None, true, window, cx)
3565                        .detach_and_log_err(cx);
3566                }
3567            })
3568            .ok();
3569    }
3570
3571    fn dismiss_notifications(&mut self, cx: &mut Context<ActiveThread>) {
3572        for window in self.notifications.drain(..) {
3573            window
3574                .update(cx, |_, window, _| {
3575                    window.remove_window();
3576                })
3577                .ok();
3578
3579            self.notification_subscriptions.remove(&window);
3580        }
3581    }
3582
3583    fn render_vertical_scrollbar(&self, cx: &mut Context<Self>) -> Option<Stateful<Div>> {
3584        if !self.show_scrollbar && !self.scrollbar_state.is_dragging() {
3585            return None;
3586        }
3587
3588        Some(
3589            div()
3590                .occlude()
3591                .id("active-thread-scrollbar")
3592                .on_mouse_move(cx.listener(|_, _, _, cx| {
3593                    cx.notify();
3594                    cx.stop_propagation()
3595                }))
3596                .on_hover(|_, _, cx| {
3597                    cx.stop_propagation();
3598                })
3599                .on_any_mouse_down(|_, _, cx| {
3600                    cx.stop_propagation();
3601                })
3602                .on_mouse_up(
3603                    MouseButton::Left,
3604                    cx.listener(|_, _, _, cx| {
3605                        cx.stop_propagation();
3606                    }),
3607                )
3608                .on_scroll_wheel(cx.listener(|_, _, _, cx| {
3609                    cx.notify();
3610                }))
3611                .h_full()
3612                .absolute()
3613                .right_1()
3614                .top_1()
3615                .bottom_0()
3616                .w(px(12.))
3617                .cursor_default()
3618                .children(Scrollbar::vertical(self.scrollbar_state.clone())),
3619        )
3620    }
3621
3622    fn hide_scrollbar_later(&mut self, cx: &mut Context<Self>) {
3623        const SCROLLBAR_SHOW_INTERVAL: Duration = Duration::from_secs(1);
3624        self.hide_scrollbar_task = Some(cx.spawn(async move |thread, cx| {
3625            cx.background_executor()
3626                .timer(SCROLLBAR_SHOW_INTERVAL)
3627                .await;
3628            thread
3629                .update(cx, |thread, cx| {
3630                    if !thread.scrollbar_state.is_dragging() {
3631                        thread.show_scrollbar = false;
3632                        cx.notify();
3633                    }
3634                })
3635                .log_err();
3636        }))
3637    }
3638
3639    pub fn is_codeblock_expanded(&self, message_id: MessageId, ix: usize) -> bool {
3640        self.expanded_code_blocks
3641            .get(&(message_id, ix))
3642            .copied()
3643            .unwrap_or(true)
3644    }
3645
3646    pub fn toggle_codeblock_expanded(&mut self, message_id: MessageId, ix: usize) {
3647        let is_expanded = self
3648            .expanded_code_blocks
3649            .entry((message_id, ix))
3650            .or_insert(true);
3651        *is_expanded = !*is_expanded;
3652    }
3653
3654    pub fn scroll_to_top(&mut self, cx: &mut Context<Self>) {
3655        self.list_state.scroll_to(ListOffset::default());
3656        cx.notify();
3657    }
3658
3659    pub fn scroll_to_bottom(&mut self, cx: &mut Context<Self>) {
3660        self.list_state.reset(self.messages.len());
3661        cx.notify();
3662    }
3663}
3664
3665pub enum ActiveThreadEvent {
3666    EditingMessageTokenCountChanged,
3667}
3668
3669impl EventEmitter<ActiveThreadEvent> for ActiveThread {}
3670
3671impl Render for ActiveThread {
3672    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
3673        v_flex()
3674            .size_full()
3675            .relative()
3676            .bg(cx.theme().colors().panel_background)
3677            .on_mouse_move(cx.listener(|this, _, _, cx| {
3678                this.show_scrollbar = true;
3679                this.hide_scrollbar_later(cx);
3680                cx.notify();
3681            }))
3682            .on_scroll_wheel(cx.listener(|this, _, _, cx| {
3683                this.show_scrollbar = true;
3684                this.hide_scrollbar_later(cx);
3685                cx.notify();
3686            }))
3687            .on_mouse_up(
3688                MouseButton::Left,
3689                cx.listener(|this, _, _, cx| {
3690                    this.hide_scrollbar_later(cx);
3691                }),
3692            )
3693            .child(list(self.list_state.clone()).flex_grow())
3694            .when_some(self.render_vertical_scrollbar(cx), |this, scrollbar| {
3695                this.child(scrollbar)
3696            })
3697    }
3698}
3699
3700pub(crate) fn open_active_thread_as_markdown(
3701    agent: Entity<ZedAgentThread>,
3702    workspace: Entity<Workspace>,
3703    window: &mut Window,
3704    cx: &mut App,
3705) -> Task<anyhow::Result<()>> {
3706    let markdown_language_task = workspace
3707        .read(cx)
3708        .app_state()
3709        .languages
3710        .language_for_name("Markdown");
3711
3712    window.spawn(cx, async move |cx| {
3713        let markdown_language = markdown_language_task.await?;
3714
3715        workspace.update_in(cx, |workspace, window, cx| {
3716            let thread = agent.read(cx);
3717            let markdown = thread.to_markdown(cx)?;
3718            let thread_summary = thread.summary().or_default().to_string();
3719
3720            let project = workspace.project().clone();
3721
3722            if !project.read(cx).is_local() {
3723                anyhow::bail!("failed to open active thread as markdown in remote project");
3724            }
3725
3726            let buffer = project.update(cx, |project, cx| {
3727                project.create_local_buffer(&markdown, Some(markdown_language), cx)
3728            });
3729            let buffer =
3730                cx.new(|cx| MultiBuffer::singleton(buffer, cx).with_title(thread_summary.clone()));
3731
3732            workspace.add_item_to_active_pane(
3733                Box::new(cx.new(|cx| {
3734                    let mut editor =
3735                        Editor::for_multibuffer(buffer, Some(project.clone()), window, cx);
3736                    editor.set_breadcrumb_header(thread_summary);
3737                    editor
3738                })),
3739                None,
3740                true,
3741                window,
3742                cx,
3743            );
3744
3745            anyhow::Ok(())
3746        })??;
3747        anyhow::Ok(())
3748    })
3749}
3750
3751pub(crate) fn open_context(
3752    context: &AgentContextHandle,
3753    workspace: Entity<Workspace>,
3754    window: &mut Window,
3755    cx: &mut App,
3756) {
3757    match context {
3758        AgentContextHandle::File(file_context) => {
3759            if let Some(project_path) = file_context.project_path(cx) {
3760                workspace.update(cx, |workspace, cx| {
3761                    workspace
3762                        .open_path(project_path, None, true, window, cx)
3763                        .detach_and_log_err(cx);
3764                });
3765            }
3766        }
3767
3768        AgentContextHandle::Directory(directory_context) => {
3769            let entry_id = directory_context.entry_id;
3770            workspace.update(cx, |workspace, cx| {
3771                workspace.project().update(cx, |_project, cx| {
3772                    cx.emit(project::Event::RevealInProjectPanel(entry_id));
3773                })
3774            })
3775        }
3776
3777        AgentContextHandle::Symbol(symbol_context) => {
3778            let buffer = symbol_context.buffer.read(cx);
3779            if let Some(project_path) = buffer.project_path(cx) {
3780                let snapshot = buffer.snapshot();
3781                let target_position = symbol_context.range.start.to_point(&snapshot);
3782                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3783                    .detach();
3784            }
3785        }
3786
3787        AgentContextHandle::Selection(selection_context) => {
3788            let buffer = selection_context.buffer.read(cx);
3789            if let Some(project_path) = buffer.project_path(cx) {
3790                let snapshot = buffer.snapshot();
3791                let target_position = selection_context.range.start.to_point(&snapshot);
3792
3793                open_editor_at_position(project_path, target_position, &workspace, window, cx)
3794                    .detach();
3795            }
3796        }
3797
3798        AgentContextHandle::FetchedUrl(fetched_url_context) => {
3799            cx.open_url(&fetched_url_context.url);
3800        }
3801
3802        AgentContextHandle::Thread(thread_context) => workspace.update(cx, |workspace, cx| {
3803            if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3804                panel.update(cx, |panel, cx| {
3805                    panel.open_thread(thread_context.agent.clone(), window, cx);
3806                });
3807            }
3808        }),
3809
3810        AgentContextHandle::TextThread(text_thread_context) => {
3811            workspace.update(cx, |workspace, cx| {
3812                if let Some(panel) = workspace.panel::<AgentPanel>(cx) {
3813                    panel.update(cx, |panel, cx| {
3814                        panel.open_prompt_editor(text_thread_context.context.clone(), window, cx)
3815                    });
3816                }
3817            })
3818        }
3819
3820        AgentContextHandle::Rules(rules_context) => window.dispatch_action(
3821            Box::new(OpenRulesLibrary {
3822                prompt_to_select: Some(rules_context.prompt_id.0),
3823            }),
3824            cx,
3825        ),
3826
3827        AgentContextHandle::Image(_) => {}
3828    }
3829}
3830
3831pub(crate) fn attach_pasted_images_as_context(
3832    context_store: &Entity<ContextStore>,
3833    cx: &mut App,
3834) -> bool {
3835    let images = cx
3836        .read_from_clipboard()
3837        .map(|item| {
3838            item.into_entries()
3839                .filter_map(|entry| {
3840                    if let ClipboardEntry::Image(image) = entry {
3841                        Some(image)
3842                    } else {
3843                        None
3844                    }
3845                })
3846                .collect::<Vec<_>>()
3847        })
3848        .unwrap_or_default();
3849
3850    if images.is_empty() {
3851        return false;
3852    }
3853    cx.stop_propagation();
3854
3855    context_store.update(cx, |store, cx| {
3856        for image in images {
3857            store.add_image_instance(Arc::new(image), cx);
3858        }
3859    });
3860    true
3861}
3862
3863fn open_editor_at_position(
3864    project_path: project::ProjectPath,
3865    target_position: Point,
3866    workspace: &Entity<Workspace>,
3867    window: &mut Window,
3868    cx: &mut App,
3869) -> Task<()> {
3870    let open_task = workspace.update(cx, |workspace, cx| {
3871        workspace.open_path(project_path, None, true, window, cx)
3872    });
3873    window.spawn(cx, async move |cx| {
3874        if let Some(active_editor) = open_task
3875            .await
3876            .log_err()
3877            .and_then(|item| item.downcast::<Editor>())
3878        {
3879            active_editor
3880                .downgrade()
3881                .update_in(cx, |editor, window, cx| {
3882                    editor.go_to_singleton_buffer_point(target_position, window, cx);
3883                })
3884                .log_err();
3885        }
3886    })
3887}
3888
3889#[cfg(test)]
3890mod tests {
3891    use super::*;
3892    use agent::{
3893        MessageSegment, context::ContextLoadResult, thread::UserMessageParams, thread_store,
3894    };
3895    use assistant_tool::{ToolRegistry, ToolWorkingSet};
3896    use editor::EditorSettings;
3897    use fs::FakeFs;
3898    use gpui::{AppContext, TestAppContext, VisualTestContext};
3899    use language_model::{
3900        ConfiguredModel, LanguageModel, LanguageModelRegistry,
3901        fake_provider::{FakeLanguageModel, FakeLanguageModelProvider},
3902    };
3903    use project::Project;
3904    use prompt_store::PromptBuilder;
3905    use serde_json::json;
3906    use settings::SettingsStore;
3907    use util::path;
3908    use workspace::CollaboratorId;
3909    use zed_llm_client::CompletionIntent;
3910
3911    #[gpui::test]
3912    async fn test_agent_is_unfollowed_after_cancelling_completion(cx: &mut TestAppContext) {
3913        init_test_settings(cx);
3914
3915        let project = create_test_project(
3916            cx,
3917            json!({"code.rs": "fn main() {\n    println!(\"Hello, world!\");\n}"}),
3918        )
3919        .await;
3920
3921        let (cx, _active_thread, workspace, thread, model) =
3922            setup_test_environment(cx, project.clone()).await;
3923
3924        // Insert user message without any context (empty context vector)
3925        thread.update(cx, |thread, cx| {
3926            thread.send_message(
3927                "What is the best way to learn Rust?",
3928                model.clone(),
3929                None,
3930                cx,
3931            )
3932        });
3933
3934        // Stream response to user message
3935        thread.update(cx, |thread, cx| {
3936            let intent = CompletionIntent::UserPrompt;
3937            let request = thread.to_completion_request(model.clone(), intent, cx);
3938            thread.stream_completion(request, model, intent, cx.active_window(), cx)
3939        });
3940        // Follow the agent
3941        cx.update(|window, cx| {
3942            workspace.update(cx, |workspace, cx| {
3943                workspace.follow(CollaboratorId::Agent, window, cx);
3944            })
3945        });
3946        assert!(cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3947
3948        // Cancel the current completion
3949        thread.update(cx, |thread, cx| {
3950            thread.cancel_last_completion(cx.active_window(), cx)
3951        });
3952
3953        cx.executor().run_until_parked();
3954
3955        // No longer following the agent
3956        assert!(!cx.read(|cx| workspace.read(cx).is_being_followed(CollaboratorId::Agent)));
3957    }
3958
3959    #[gpui::test]
3960    async fn test_reinserting_creases_for_edited_message(cx: &mut TestAppContext) {
3961        init_test_settings(cx);
3962
3963        let project = create_test_project(cx, json!({})).await;
3964
3965        let (cx, active_thread, _, thread, model) =
3966            setup_test_environment(cx, project.clone()).await;
3967        cx.update(|_, cx| {
3968            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
3969                registry.set_default_model(
3970                    Some(ConfiguredModel {
3971                        provider: Arc::new(FakeLanguageModelProvider),
3972                        model: model.clone(),
3973                    }),
3974                    cx,
3975                );
3976            });
3977        });
3978
3979        let creases = vec![MessageCrease {
3980            range: 14..22,
3981            icon_path: "icon".into(),
3982            label: "foo.txt".into(),
3983            context: None,
3984        }];
3985
3986        let message = thread.update(cx, |agent, cx| {
3987            let message_id = agent.send_message(
3988                UserMessageParams {
3989                    text: "Tell me about @foo.txt".to_string(),
3990                    creases,
3991                    checkpoint: None,
3992                    context: ContextLoadResult::default(),
3993                },
3994                model.clone(),
3995                None,
3996                cx,
3997            );
3998            agent.message(message_id).cloned().unwrap()
3999        });
4000
4001        active_thread.update_in(cx, |active_thread, window, cx| {
4002            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
4003                active_thread.start_editing_message(
4004                    message.id,
4005                    message_text,
4006                    message.creases.as_slice(),
4007                    window,
4008                    cx,
4009                );
4010            }
4011            let editor = active_thread
4012                .editing_message
4013                .as_ref()
4014                .unwrap()
4015                .1
4016                .editor
4017                .clone();
4018            editor.update(cx, |editor, cx| editor.edit([(0..13, "modified")], cx));
4019            active_thread.confirm_editing_message(&Default::default(), window, cx);
4020        });
4021        cx.run_until_parked();
4022
4023        let message = thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
4024        active_thread.update_in(cx, |active_thread, window, cx| {
4025            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
4026                active_thread.start_editing_message(
4027                    message.id,
4028                    message_text,
4029                    message.creases.as_slice(),
4030                    window,
4031                    cx,
4032                );
4033            }
4034            let editor = active_thread
4035                .editing_message
4036                .as_ref()
4037                .unwrap()
4038                .1
4039                .editor
4040                .clone();
4041            let text = editor.update(cx, |editor, cx| editor.text(cx));
4042            assert_eq!(text, "modified @foo.txt");
4043        });
4044    }
4045
4046    #[gpui::test]
4047    async fn test_editing_message_cancels_previous_completion(cx: &mut TestAppContext) {
4048        init_test_settings(cx);
4049
4050        let project = create_test_project(cx, json!({})).await;
4051
4052        let (cx, active_thread, _, thread, model) =
4053            setup_test_environment(cx, project.clone()).await;
4054
4055        cx.update(|_, cx| {
4056            LanguageModelRegistry::global(cx).update(cx, |registry, cx| {
4057                registry.set_default_model(
4058                    Some(ConfiguredModel {
4059                        provider: Arc::new(FakeLanguageModelProvider),
4060                        model: model.clone(),
4061                    }),
4062                    cx,
4063                );
4064            });
4065        });
4066
4067        // Track thread events to verify cancellation
4068        let cancellation_events = Arc::new(std::sync::Mutex::new(Vec::new()));
4069        let new_request_events = Arc::new(std::sync::Mutex::new(Vec::new()));
4070
4071        let _subscription = cx.update(|_, cx| {
4072            let cancellation_events = cancellation_events.clone();
4073            let new_request_events = new_request_events.clone();
4074            cx.subscribe(
4075                &thread,
4076                move |_thread, event: &ThreadEvent, _cx| match event {
4077                    ThreadEvent::CompletionCanceled => {
4078                        cancellation_events.lock().unwrap().push(());
4079                    }
4080                    ThreadEvent::NewRequest => {
4081                        new_request_events.lock().unwrap().push(());
4082                    }
4083                    _ => {}
4084                },
4085            )
4086        });
4087
4088        // Insert a user message and start streaming a response
4089        let message = thread.update(cx, |thread, cx| {
4090            let message_id =
4091                thread.send_message("Hello, how are you?", model.clone(), cx.active_window(), cx);
4092            thread.message(message_id).cloned().unwrap()
4093        });
4094
4095        cx.run_until_parked();
4096
4097        // Verify that a completion is in progress
4098        assert!(cx.read(|cx| thread.read(cx).is_generating()));
4099        assert_eq!(new_request_events.lock().unwrap().len(), 1);
4100
4101        // Edit the message while the completion is still running
4102        active_thread.update_in(cx, |active_thread, window, cx| {
4103            if let Some(message_text) = message.segments.first().and_then(MessageSegment::text) {
4104                active_thread.start_editing_message(
4105                    message.id,
4106                    message_text,
4107                    message.creases.as_slice(),
4108                    window,
4109                    cx,
4110                );
4111            }
4112            let editor = active_thread
4113                .editing_message
4114                .as_ref()
4115                .unwrap()
4116                .1
4117                .editor
4118                .clone();
4119            editor.update(cx, |editor, cx| {
4120                editor.set_text("What is the weather like?", window, cx);
4121            });
4122            active_thread.confirm_editing_message(&Default::default(), window, cx);
4123        });
4124
4125        cx.run_until_parked();
4126
4127        // Verify that the previous completion was cancelled
4128        assert_eq!(cancellation_events.lock().unwrap().len(), 1);
4129
4130        // Verify that a new request was started after cancellation
4131        assert_eq!(new_request_events.lock().unwrap().len(), 2);
4132
4133        // Verify that the edited message contains the new text
4134        let edited_message =
4135            thread.update(cx, |thread, _| thread.message(message.id).cloned().unwrap());
4136        match &edited_message.segments[0] {
4137            MessageSegment::Text(text) => {
4138                assert_eq!(text, "What is the weather like?");
4139            }
4140            _ => panic!("Expected text segment"),
4141        }
4142    }
4143
4144    fn init_test_settings(cx: &mut TestAppContext) {
4145        cx.update(|cx| {
4146            let settings_store = SettingsStore::test(cx);
4147            cx.set_global(settings_store);
4148            language::init(cx);
4149            Project::init_settings(cx);
4150            AgentSettings::register(cx);
4151            prompt_store::init(cx);
4152            thread_store::init(cx);
4153            workspace::init_settings(cx);
4154            language_model::init_settings(cx);
4155            ThemeSettings::register(cx);
4156            EditorSettings::register(cx);
4157            ToolRegistry::default_global(cx);
4158        });
4159    }
4160
4161    // Helper to create a test project with test files
4162    async fn create_test_project(
4163        cx: &mut TestAppContext,
4164        files: serde_json::Value,
4165    ) -> Entity<Project> {
4166        let fs = FakeFs::new(cx.executor());
4167        fs.insert_tree(path!("/test"), files).await;
4168        Project::test(fs, [path!("/test").as_ref()], cx).await
4169    }
4170
4171    async fn setup_test_environment(
4172        cx: &mut TestAppContext,
4173        project: Entity<Project>,
4174    ) -> (
4175        &mut VisualTestContext,
4176        Entity<ActiveThread>,
4177        Entity<Workspace>,
4178        Entity<ZedAgentThread>,
4179        Arc<dyn LanguageModel>,
4180    ) {
4181        let (workspace, cx) =
4182            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
4183
4184        let thread_store = cx
4185            .update(|_, cx| {
4186                ThreadStore::load(
4187                    project.clone(),
4188                    cx.new(|_| ToolWorkingSet::default()),
4189                    None,
4190                    Arc::new(PromptBuilder::new(None).unwrap()),
4191                    cx,
4192                )
4193            })
4194            .await
4195            .unwrap();
4196
4197        let text_thread_store = cx
4198            .update(|_, cx| {
4199                TextThreadStore::new(
4200                    project.clone(),
4201                    Arc::new(PromptBuilder::new(None).unwrap()),
4202                    Default::default(),
4203                    cx,
4204                )
4205            })
4206            .await
4207            .unwrap();
4208
4209        let thread = thread_store.update(cx, |store, cx| store.create_thread(cx));
4210        let context_store =
4211            cx.new(|_cx| ContextStore::new(project.downgrade(), Some(thread_store.downgrade())));
4212
4213        let model = FakeLanguageModel::default();
4214        let model: Arc<dyn LanguageModel> = Arc::new(model);
4215
4216        let language_registry = LanguageRegistry::new(cx.executor());
4217        let language_registry = Arc::new(language_registry);
4218
4219        let active_thread = cx.update(|window, cx| {
4220            cx.new(|cx| {
4221                ActiveThread::new(
4222                    thread.clone(),
4223                    thread_store.clone(),
4224                    text_thread_store,
4225                    context_store.clone(),
4226                    language_registry.clone(),
4227                    workspace.downgrade(),
4228                    window,
4229                    cx,
4230                )
4231            })
4232        });
4233
4234        (cx, active_thread, workspace, thread, model)
4235    }
4236}