message_editor.rs

   1use crate::{
   2    acp::completion_provider::{ContextPickerCompletionProvider, SlashCommandCompletion},
   3    context_picker::{ContextPickerAction, fetch_context_picker::fetch_url_content},
   4};
   5use acp_thread::{MentionUri, selection_name};
   6use agent::{HistoryStore, outline};
   7use agent_client_protocol as acp;
   8use agent_servers::{AgentServer, AgentServerDelegate};
   9use anyhow::{Result, anyhow};
  10use assistant_slash_commands::codeblock_fence_for_path;
  11use collections::{HashMap, HashSet};
  12use editor::{
  13    Addon, Anchor, AnchorRangeExt, ContextMenuOptions, ContextMenuPlacement, Editor, EditorElement,
  14    EditorEvent, EditorMode, EditorSnapshot, EditorStyle, ExcerptId, FoldPlaceholder, Inlay,
  15    MultiBuffer, ToOffset,
  16    actions::Paste,
  17    display_map::{Crease, CreaseId, FoldId},
  18};
  19use futures::{
  20    FutureExt as _,
  21    future::{Shared, join_all},
  22};
  23use gpui::{
  24    Animation, AnimationExt as _, AppContext, ClipboardEntry, Context, Entity, EntityId,
  25    EventEmitter, FocusHandle, Focusable, Image, ImageFormat, Img, KeyContext, SharedString,
  26    Subscription, Task, TextStyle, WeakEntity, pulsating_between,
  27};
  28use language::{Buffer, Language, language_settings::InlayHintKind};
  29use language_model::LanguageModelImage;
  30use postage::stream::Stream as _;
  31use project::{
  32    CompletionIntent, InlayHint, InlayHintLabel, InlayId, Project, ProjectItem, ProjectPath,
  33    Worktree,
  34};
  35use prompt_store::{PromptId, PromptStore};
  36use rope::Point;
  37use settings::Settings;
  38use std::{
  39    cell::RefCell,
  40    ffi::OsStr,
  41    fmt::Write,
  42    ops::{Range, RangeInclusive},
  43    path::{Path, PathBuf},
  44    rc::Rc,
  45    sync::Arc,
  46    time::Duration,
  47};
  48use text::OffsetRangeExt;
  49use theme::ThemeSettings;
  50use ui::{ButtonLike, TintColor, Toggleable, prelude::*};
  51use util::{ResultExt, debug_panic, rel_path::RelPath};
  52use workspace::{Workspace, notifications::NotifyResultExt as _};
  53use zed_actions::agent::Chat;
  54
  55pub struct MessageEditor {
  56    mention_set: MentionSet,
  57    editor: Entity<Editor>,
  58    project: Entity<Project>,
  59    workspace: WeakEntity<Workspace>,
  60    history_store: Entity<HistoryStore>,
  61    prompt_store: Option<Entity<PromptStore>>,
  62    prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
  63    available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
  64    agent_name: SharedString,
  65    _subscriptions: Vec<Subscription>,
  66    _parse_slash_command_task: Task<()>,
  67}
  68
  69#[derive(Clone, Copy, Debug)]
  70pub enum MessageEditorEvent {
  71    Send,
  72    Cancel,
  73    Focus,
  74    LostFocus,
  75}
  76
  77impl EventEmitter<MessageEditorEvent> for MessageEditor {}
  78
  79const COMMAND_HINT_INLAY_ID: InlayId = InlayId::Hint(0);
  80
  81impl MessageEditor {
  82    pub fn new(
  83        workspace: WeakEntity<Workspace>,
  84        project: Entity<Project>,
  85        history_store: Entity<HistoryStore>,
  86        prompt_store: Option<Entity<PromptStore>>,
  87        prompt_capabilities: Rc<RefCell<acp::PromptCapabilities>>,
  88        available_commands: Rc<RefCell<Vec<acp::AvailableCommand>>>,
  89        agent_name: SharedString,
  90        placeholder: &str,
  91        mode: EditorMode,
  92        window: &mut Window,
  93        cx: &mut Context<Self>,
  94    ) -> Self {
  95        let language = Language::new(
  96            language::LanguageConfig {
  97                completion_query_characters: HashSet::from_iter(['.', '-', '_', '@']),
  98                ..Default::default()
  99            },
 100            None,
 101        );
 102        let completion_provider = Rc::new(ContextPickerCompletionProvider::new(
 103            cx.weak_entity(),
 104            workspace.clone(),
 105            history_store.clone(),
 106            prompt_store.clone(),
 107            prompt_capabilities.clone(),
 108            available_commands.clone(),
 109        ));
 110        let mention_set = MentionSet::default();
 111        let editor = cx.new(|cx| {
 112            let buffer = cx.new(|cx| Buffer::local("", cx).with_language(Arc::new(language), cx));
 113            let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
 114
 115            let mut editor = Editor::new(mode, buffer, None, window, cx);
 116            editor.set_placeholder_text(placeholder, window, cx);
 117            editor.set_show_indent_guides(false, cx);
 118            editor.set_soft_wrap();
 119            editor.set_use_modal_editing(true);
 120            editor.set_completion_provider(Some(completion_provider.clone()));
 121            editor.set_context_menu_options(ContextMenuOptions {
 122                min_entries_visible: 12,
 123                max_entries_visible: 12,
 124                placement: Some(ContextMenuPlacement::Above),
 125            });
 126            editor.register_addon(MessageEditorAddon::new());
 127            editor
 128        });
 129
 130        cx.on_focus_in(&editor.focus_handle(cx), window, |_, _, cx| {
 131            cx.emit(MessageEditorEvent::Focus)
 132        })
 133        .detach();
 134        cx.on_focus_out(&editor.focus_handle(cx), window, |_, _, _, cx| {
 135            cx.emit(MessageEditorEvent::LostFocus)
 136        })
 137        .detach();
 138
 139        let mut has_hint = false;
 140        let mut subscriptions = Vec::new();
 141
 142        subscriptions.push(cx.subscribe_in(&editor, window, {
 143            move |this, editor, event, window, cx| {
 144                if let EditorEvent::Edited { .. } = event
 145                    && !editor.read(cx).read_only(cx)
 146                {
 147                    let snapshot = editor.update(cx, |editor, cx| {
 148                        let new_hints = this
 149                            .command_hint(editor.buffer(), cx)
 150                            .into_iter()
 151                            .collect::<Vec<_>>();
 152                        let has_new_hint = !new_hints.is_empty();
 153                        editor.splice_inlays(
 154                            if has_hint {
 155                                &[COMMAND_HINT_INLAY_ID]
 156                            } else {
 157                                &[]
 158                            },
 159                            new_hints,
 160                            cx,
 161                        );
 162                        has_hint = has_new_hint;
 163
 164                        editor.snapshot(window, cx)
 165                    });
 166                    this.mention_set.remove_invalid(snapshot);
 167
 168                    cx.notify();
 169                }
 170            }
 171        }));
 172
 173        Self {
 174            editor,
 175            project,
 176            mention_set,
 177            workspace,
 178            history_store,
 179            prompt_store,
 180            prompt_capabilities,
 181            available_commands,
 182            agent_name,
 183            _subscriptions: subscriptions,
 184            _parse_slash_command_task: Task::ready(()),
 185        }
 186    }
 187
 188    fn command_hint(&self, buffer: &Entity<MultiBuffer>, cx: &App) -> Option<Inlay> {
 189        let available_commands = self.available_commands.borrow();
 190        if available_commands.is_empty() {
 191            return None;
 192        }
 193
 194        let snapshot = buffer.read(cx).snapshot(cx);
 195        let parsed_command = SlashCommandCompletion::try_parse(&snapshot.text(), 0)?;
 196        if parsed_command.argument.is_some() {
 197            return None;
 198        }
 199
 200        let command_name = parsed_command.command?;
 201        let available_command = available_commands
 202            .iter()
 203            .find(|command| command.name == command_name)?;
 204
 205        let acp::AvailableCommandInput::Unstructured { mut hint } =
 206            available_command.input.clone()?;
 207
 208        let mut hint_pos = parsed_command.source_range.end + 1;
 209        if hint_pos > snapshot.len() {
 210            hint_pos = snapshot.len();
 211            hint.insert(0, ' ');
 212        }
 213
 214        let hint_pos = snapshot.anchor_after(hint_pos);
 215
 216        Some(Inlay::hint(
 217            COMMAND_HINT_INLAY_ID,
 218            hint_pos,
 219            &InlayHint {
 220                position: hint_pos.text_anchor,
 221                label: InlayHintLabel::String(hint),
 222                kind: Some(InlayHintKind::Parameter),
 223                padding_left: false,
 224                padding_right: false,
 225                tooltip: None,
 226                resolve_state: project::ResolveState::Resolved,
 227            },
 228        ))
 229    }
 230
 231    pub fn insert_thread_summary(
 232        &mut self,
 233        thread: agent::DbThreadMetadata,
 234        window: &mut Window,
 235        cx: &mut Context<Self>,
 236    ) {
 237        let start = self.editor.update(cx, |editor, cx| {
 238            editor.set_text(format!("{}\n", thread.title), window, cx);
 239            editor
 240                .buffer()
 241                .read(cx)
 242                .snapshot(cx)
 243                .anchor_before(Point::zero())
 244                .text_anchor
 245        });
 246
 247        self.confirm_mention_completion(
 248            thread.title.clone(),
 249            start,
 250            thread.title.len(),
 251            MentionUri::Thread {
 252                id: thread.id.clone(),
 253                name: thread.title.to_string(),
 254            },
 255            window,
 256            cx,
 257        )
 258        .detach();
 259    }
 260
 261    #[cfg(test)]
 262    pub(crate) fn editor(&self) -> &Entity<Editor> {
 263        &self.editor
 264    }
 265
 266    #[cfg(test)]
 267    pub(crate) fn mention_set(&mut self) -> &mut MentionSet {
 268        &mut self.mention_set
 269    }
 270
 271    pub fn is_empty(&self, cx: &App) -> bool {
 272        self.editor.read(cx).is_empty(cx)
 273    }
 274
 275    pub fn mentions(&self) -> HashSet<MentionUri> {
 276        self.mention_set
 277            .mentions
 278            .values()
 279            .map(|(uri, _)| uri.clone())
 280            .collect()
 281    }
 282
 283    pub fn confirm_mention_completion(
 284        &mut self,
 285        crease_text: SharedString,
 286        start: text::Anchor,
 287        content_len: usize,
 288        mention_uri: MentionUri,
 289        window: &mut Window,
 290        cx: &mut Context<Self>,
 291    ) -> Task<()> {
 292        let snapshot = self
 293            .editor
 294            .update(cx, |editor, cx| editor.snapshot(window, cx));
 295        let Some(start_anchor) = snapshot.buffer_snapshot().as_singleton_anchor(start) else {
 296            return Task::ready(());
 297        };
 298        let excerpt_id = start_anchor.excerpt_id;
 299        let end_anchor = snapshot
 300            .buffer_snapshot()
 301            .anchor_before(start_anchor.to_offset(&snapshot.buffer_snapshot()) + content_len + 1);
 302
 303        let crease = if let MentionUri::File { abs_path } = &mention_uri
 304            && let Some(extension) = abs_path.extension()
 305            && let Some(extension) = extension.to_str()
 306            && Img::extensions().contains(&extension)
 307            && !extension.contains("svg")
 308        {
 309            let Some(project_path) = self
 310                .project
 311                .read(cx)
 312                .project_path_for_absolute_path(&abs_path, cx)
 313            else {
 314                log::error!("project path not found");
 315                return Task::ready(());
 316            };
 317            let image = self
 318                .project
 319                .update(cx, |project, cx| project.open_image(project_path, cx));
 320            let image = cx
 321                .spawn(async move |_, cx| {
 322                    let image = image.await.map_err(|e| e.to_string())?;
 323                    let image = image
 324                        .update(cx, |image, _| image.image.clone())
 325                        .map_err(|e| e.to_string())?;
 326                    Ok(image)
 327                })
 328                .shared();
 329            insert_crease_for_mention(
 330                excerpt_id,
 331                start,
 332                content_len,
 333                mention_uri.name().into(),
 334                IconName::Image.path().into(),
 335                Some(image),
 336                self.editor.clone(),
 337                window,
 338                cx,
 339            )
 340        } else {
 341            insert_crease_for_mention(
 342                excerpt_id,
 343                start,
 344                content_len,
 345                crease_text,
 346                mention_uri.icon_path(cx),
 347                None,
 348                self.editor.clone(),
 349                window,
 350                cx,
 351            )
 352        };
 353        let Some((crease_id, tx)) = crease else {
 354            return Task::ready(());
 355        };
 356
 357        let task = match mention_uri.clone() {
 358            MentionUri::Fetch { url } => self.confirm_mention_for_fetch(url, cx),
 359            MentionUri::Directory { .. } => Task::ready(Ok(Mention::UriOnly)),
 360            MentionUri::Thread { id, .. } => self.confirm_mention_for_thread(id, cx),
 361            MentionUri::TextThread { path, .. } => self.confirm_mention_for_text_thread(path, cx),
 362            MentionUri::File { abs_path } => self.confirm_mention_for_file(abs_path, cx),
 363            MentionUri::Symbol {
 364                abs_path,
 365                line_range,
 366                ..
 367            } => self.confirm_mention_for_symbol(abs_path, line_range, cx),
 368            MentionUri::Rule { id, .. } => self.confirm_mention_for_rule(id, cx),
 369            MentionUri::PastedImage => {
 370                debug_panic!("pasted image URI should not be included in completions");
 371                Task::ready(Err(anyhow!(
 372                    "pasted imaged URI should not be included in completions"
 373                )))
 374            }
 375            MentionUri::Selection { .. } => {
 376                // Handled elsewhere
 377                debug_panic!("unexpected selection URI");
 378                Task::ready(Err(anyhow!("unexpected selection URI")))
 379            }
 380        };
 381        let task = cx
 382            .spawn(async move |_, _| task.await.map_err(|e| e.to_string()))
 383            .shared();
 384        self.mention_set
 385            .mentions
 386            .insert(crease_id, (mention_uri, task.clone()));
 387
 388        // Notify the user if we failed to load the mentioned context
 389        cx.spawn_in(window, async move |this, cx| {
 390            let result = task.await.notify_async_err(cx);
 391            drop(tx);
 392            if result.is_none() {
 393                this.update(cx, |this, cx| {
 394                    this.editor.update(cx, |editor, cx| {
 395                        // Remove mention
 396                        editor.edit([(start_anchor..end_anchor, "")], cx);
 397                    });
 398                    this.mention_set.mentions.remove(&crease_id);
 399                })
 400                .ok();
 401            }
 402        })
 403    }
 404
 405    fn confirm_mention_for_file(
 406        &mut self,
 407        abs_path: PathBuf,
 408        cx: &mut Context<Self>,
 409    ) -> Task<Result<Mention>> {
 410        let Some(project_path) = self
 411            .project
 412            .read(cx)
 413            .project_path_for_absolute_path(&abs_path, cx)
 414        else {
 415            return Task::ready(Err(anyhow!("project path not found")));
 416        };
 417        let extension = abs_path
 418            .extension()
 419            .and_then(OsStr::to_str)
 420            .unwrap_or_default();
 421
 422        if Img::extensions().contains(&extension) && !extension.contains("svg") {
 423            if !self.prompt_capabilities.borrow().image {
 424                return Task::ready(Err(anyhow!("This model does not support images yet")));
 425            }
 426            let task = self
 427                .project
 428                .update(cx, |project, cx| project.open_image(project_path, cx));
 429            return cx.spawn(async move |_, cx| {
 430                let image = task.await?;
 431                let image = image.update(cx, |image, _| image.image.clone())?;
 432                let format = image.format;
 433                let image = cx
 434                    .update(|cx| LanguageModelImage::from_image(image, cx))?
 435                    .await;
 436                if let Some(image) = image {
 437                    Ok(Mention::Image(MentionImage {
 438                        data: image.source,
 439                        format,
 440                    }))
 441                } else {
 442                    Err(anyhow!("Failed to convert image"))
 443                }
 444            });
 445        }
 446
 447        let buffer = self
 448            .project
 449            .update(cx, |project, cx| project.open_buffer(project_path, cx));
 450        cx.spawn(async move |_, cx| {
 451            let buffer = buffer.await?;
 452            let buffer_content = outline::get_buffer_content_or_outline(
 453                buffer.clone(),
 454                Some(&abs_path.to_string_lossy()),
 455                &cx,
 456            )
 457            .await?;
 458
 459            Ok(Mention::Text {
 460                content: buffer_content.text,
 461                tracked_buffers: vec![buffer],
 462            })
 463        })
 464    }
 465
 466    fn confirm_mention_for_fetch(
 467        &mut self,
 468        url: url::Url,
 469        cx: &mut Context<Self>,
 470    ) -> Task<Result<Mention>> {
 471        let http_client = match self
 472            .workspace
 473            .update(cx, |workspace, _| workspace.client().http_client())
 474        {
 475            Ok(http_client) => http_client,
 476            Err(e) => return Task::ready(Err(e)),
 477        };
 478        cx.background_executor().spawn(async move {
 479            let content = fetch_url_content(http_client, url.to_string()).await?;
 480            Ok(Mention::Text {
 481                content,
 482                tracked_buffers: Vec::new(),
 483            })
 484        })
 485    }
 486
 487    fn confirm_mention_for_symbol(
 488        &mut self,
 489        abs_path: PathBuf,
 490        line_range: RangeInclusive<u32>,
 491        cx: &mut Context<Self>,
 492    ) -> Task<Result<Mention>> {
 493        let Some(project_path) = self
 494            .project
 495            .read(cx)
 496            .project_path_for_absolute_path(&abs_path, cx)
 497        else {
 498            return Task::ready(Err(anyhow!("project path not found")));
 499        };
 500        let buffer = self
 501            .project
 502            .update(cx, |project, cx| project.open_buffer(project_path, cx));
 503        cx.spawn(async move |_, cx| {
 504            let buffer = buffer.await?;
 505            let mention = buffer.update(cx, |buffer, cx| {
 506                let start = Point::new(*line_range.start(), 0).min(buffer.max_point());
 507                let end = Point::new(*line_range.end() + 1, 0).min(buffer.max_point());
 508                let content = buffer.text_for_range(start..end).collect();
 509                Mention::Text {
 510                    content,
 511                    tracked_buffers: vec![cx.entity()],
 512                }
 513            })?;
 514            anyhow::Ok(mention)
 515        })
 516    }
 517
 518    fn confirm_mention_for_rule(
 519        &mut self,
 520        id: PromptId,
 521        cx: &mut Context<Self>,
 522    ) -> Task<Result<Mention>> {
 523        let Some(prompt_store) = self.prompt_store.clone() else {
 524            return Task::ready(Err(anyhow!("missing prompt store")));
 525        };
 526        let prompt = prompt_store.read(cx).load(id, cx);
 527        cx.spawn(async move |_, _| {
 528            let prompt = prompt.await?;
 529            Ok(Mention::Text {
 530                content: prompt,
 531                tracked_buffers: Vec::new(),
 532            })
 533        })
 534    }
 535
 536    pub fn confirm_mention_for_selection(
 537        &mut self,
 538        source_range: Range<text::Anchor>,
 539        selections: Vec<(Entity<Buffer>, Range<text::Anchor>, Range<usize>)>,
 540        window: &mut Window,
 541        cx: &mut Context<Self>,
 542    ) {
 543        let snapshot = self.editor.read(cx).buffer().read(cx).snapshot(cx);
 544        let Some(start) = snapshot.as_singleton_anchor(source_range.start) else {
 545            return;
 546        };
 547
 548        let offset = start.to_offset(&snapshot);
 549
 550        for (buffer, selection_range, range_to_fold) in selections {
 551            let range = snapshot.anchor_after(offset + range_to_fold.start)
 552                ..snapshot.anchor_after(offset + range_to_fold.end);
 553
 554            let abs_path = buffer
 555                .read(cx)
 556                .project_path(cx)
 557                .and_then(|project_path| self.project.read(cx).absolute_path(&project_path, cx));
 558            let snapshot = buffer.read(cx).snapshot();
 559
 560            let text = snapshot
 561                .text_for_range(selection_range.clone())
 562                .collect::<String>();
 563            let point_range = selection_range.to_point(&snapshot);
 564            let line_range = point_range.start.row..=point_range.end.row;
 565
 566            let uri = MentionUri::Selection {
 567                abs_path: abs_path.clone(),
 568                line_range: line_range.clone(),
 569            };
 570            let crease = crate::context_picker::crease_for_mention(
 571                selection_name(abs_path.as_deref(), &line_range).into(),
 572                uri.icon_path(cx),
 573                range,
 574                self.editor.downgrade(),
 575            );
 576
 577            let crease_id = self.editor.update(cx, |editor, cx| {
 578                let crease_ids = editor.insert_creases(vec![crease.clone()], cx);
 579                editor.fold_creases(vec![crease], false, window, cx);
 580                crease_ids.first().copied().unwrap()
 581            });
 582
 583            self.mention_set.mentions.insert(
 584                crease_id,
 585                (
 586                    uri,
 587                    Task::ready(Ok(Mention::Text {
 588                        content: text,
 589                        tracked_buffers: vec![buffer],
 590                    }))
 591                    .shared(),
 592                ),
 593            );
 594        }
 595    }
 596
 597    fn confirm_mention_for_thread(
 598        &mut self,
 599        id: acp::SessionId,
 600        cx: &mut Context<Self>,
 601    ) -> Task<Result<Mention>> {
 602        let server = Rc::new(agent::NativeAgentServer::new(
 603            self.project.read(cx).fs().clone(),
 604            self.history_store.clone(),
 605        ));
 606        let delegate = AgentServerDelegate::new(
 607            self.project.read(cx).agent_server_store().clone(),
 608            self.project.clone(),
 609            None,
 610            None,
 611        );
 612        let connection = server.connect(None, delegate, cx);
 613        cx.spawn(async move |_, cx| {
 614            let (agent, _) = connection.await?;
 615            let agent = agent.downcast::<agent::NativeAgentConnection>().unwrap();
 616            let summary = agent
 617                .0
 618                .update(cx, |agent, cx| agent.thread_summary(id, cx))?
 619                .await?;
 620            anyhow::Ok(Mention::Text {
 621                content: summary.to_string(),
 622                tracked_buffers: Vec::new(),
 623            })
 624        })
 625    }
 626
 627    fn confirm_mention_for_text_thread(
 628        &mut self,
 629        path: PathBuf,
 630        cx: &mut Context<Self>,
 631    ) -> Task<Result<Mention>> {
 632        let text_thread_task = self.history_store.update(cx, |store, cx| {
 633            store.load_text_thread(path.as_path().into(), cx)
 634        });
 635        cx.spawn(async move |_, cx| {
 636            let text_thread = text_thread_task.await?;
 637            let xml = text_thread.update(cx, |text_thread, cx| text_thread.to_xml(cx))?;
 638            Ok(Mention::Text {
 639                content: xml,
 640                tracked_buffers: Vec::new(),
 641            })
 642        })
 643    }
 644
 645    fn validate_slash_commands(
 646        text: &str,
 647        available_commands: &[acp::AvailableCommand],
 648        agent_name: &str,
 649    ) -> Result<()> {
 650        if let Some(parsed_command) = SlashCommandCompletion::try_parse(text, 0) {
 651            if let Some(command_name) = parsed_command.command {
 652                // Check if this command is in the list of available commands from the server
 653                let is_supported = available_commands
 654                    .iter()
 655                    .any(|cmd| cmd.name == command_name);
 656
 657                if !is_supported {
 658                    return Err(anyhow!(
 659                        "The /{} command is not supported by {}.\n\nAvailable commands: {}",
 660                        command_name,
 661                        agent_name,
 662                        if available_commands.is_empty() {
 663                            "none".to_string()
 664                        } else {
 665                            available_commands
 666                                .iter()
 667                                .map(|cmd| format!("/{}", cmd.name))
 668                                .collect::<Vec<_>>()
 669                                .join(", ")
 670                        }
 671                    ));
 672                }
 673            }
 674        }
 675        Ok(())
 676    }
 677
 678    pub fn contents(
 679        &self,
 680        full_mention_content: bool,
 681        cx: &mut Context<Self>,
 682    ) -> Task<Result<(Vec<acp::ContentBlock>, Vec<Entity<Buffer>>)>> {
 683        // Check for unsupported slash commands before spawning async task
 684        let text = self.editor.read(cx).text(cx);
 685        let available_commands = self.available_commands.borrow().clone();
 686        if let Err(err) =
 687            Self::validate_slash_commands(&text, &available_commands, &self.agent_name)
 688        {
 689            return Task::ready(Err(err));
 690        }
 691
 692        let contents = self.mention_set.contents(
 693            &self.prompt_capabilities.borrow(),
 694            full_mention_content,
 695            self.project.clone(),
 696            cx,
 697        );
 698        let editor = self.editor.clone();
 699
 700        cx.spawn(async move |_, cx| {
 701            let contents = contents.await?;
 702            let mut all_tracked_buffers = Vec::new();
 703
 704            let result = editor.update(cx, |editor, cx| {
 705                let mut ix = 0;
 706                let mut chunks: Vec<acp::ContentBlock> = Vec::new();
 707                let text = editor.text(cx);
 708                editor.display_map.update(cx, |map, cx| {
 709                    let snapshot = map.snapshot(cx);
 710                    for (crease_id, crease) in snapshot.crease_snapshot.creases() {
 711                        let Some((uri, mention)) = contents.get(&crease_id) else {
 712                            continue;
 713                        };
 714
 715                        let crease_range = crease.range().to_offset(&snapshot.buffer_snapshot());
 716                        if crease_range.start > ix {
 717                            //todo(): Custom slash command ContentBlock?
 718                            // let chunk = if prevent_slash_commands
 719                            //     && ix == 0
 720                            //     && parse_slash_command(&text[ix..]).is_some()
 721                            // {
 722                            //     format!(" {}", &text[ix..crease_range.start]).into()
 723                            // } else {
 724                            //     text[ix..crease_range.start].into()
 725                            // };
 726                            let chunk = text[ix..crease_range.start].into();
 727                            chunks.push(chunk);
 728                        }
 729                        let chunk = match mention {
 730                            Mention::Text {
 731                                content,
 732                                tracked_buffers,
 733                            } => {
 734                                all_tracked_buffers.extend(tracked_buffers.iter().cloned());
 735                                acp::ContentBlock::Resource(acp::EmbeddedResource {
 736                                    annotations: None,
 737                                    resource: acp::EmbeddedResourceResource::TextResourceContents(
 738                                        acp::TextResourceContents {
 739                                            mime_type: None,
 740                                            text: content.clone(),
 741                                            uri: uri.to_uri().to_string(),
 742                                            meta: None,
 743                                        },
 744                                    ),
 745                                    meta: None,
 746                                })
 747                            }
 748                            Mention::Image(mention_image) => {
 749                                let uri = match uri {
 750                                    MentionUri::File { .. } => Some(uri.to_uri().to_string()),
 751                                    MentionUri::PastedImage => None,
 752                                    other => {
 753                                        debug_panic!(
 754                                            "unexpected mention uri for image: {:?}",
 755                                            other
 756                                        );
 757                                        None
 758                                    }
 759                                };
 760                                acp::ContentBlock::Image(acp::ImageContent {
 761                                    annotations: None,
 762                                    data: mention_image.data.to_string(),
 763                                    mime_type: mention_image.format.mime_type().into(),
 764                                    uri,
 765                                    meta: None,
 766                                })
 767                            }
 768                            Mention::UriOnly => {
 769                                acp::ContentBlock::ResourceLink(acp::ResourceLink {
 770                                    name: uri.name(),
 771                                    uri: uri.to_uri().to_string(),
 772                                    annotations: None,
 773                                    description: None,
 774                                    mime_type: None,
 775                                    size: None,
 776                                    title: None,
 777                                    meta: None,
 778                                })
 779                            }
 780                        };
 781                        chunks.push(chunk);
 782                        ix = crease_range.end;
 783                    }
 784
 785                    if ix < text.len() {
 786                        //todo(): Custom slash command ContentBlock?
 787                        // let last_chunk = if prevent_slash_commands
 788                        //     && ix == 0
 789                        //     && parse_slash_command(&text[ix..]).is_some()
 790                        // {
 791                        //     format!(" {}", text[ix..].trim_end())
 792                        // } else {
 793                        //     text[ix..].trim_end().to_owned()
 794                        // };
 795                        let last_chunk = text[ix..].trim_end().to_owned();
 796                        if !last_chunk.is_empty() {
 797                            chunks.push(last_chunk.into());
 798                        }
 799                    }
 800                });
 801                Ok((chunks, all_tracked_buffers))
 802            })?;
 803            result
 804        })
 805    }
 806
 807    pub fn clear(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 808        self.editor.update(cx, |editor, cx| {
 809            editor.clear(window, cx);
 810            editor.remove_creases(
 811                self.mention_set
 812                    .mentions
 813                    .drain()
 814                    .map(|(crease_id, _)| crease_id),
 815                cx,
 816            )
 817        });
 818    }
 819
 820    pub fn send(&mut self, cx: &mut Context<Self>) {
 821        if self.is_empty(cx) {
 822            return;
 823        }
 824        self.editor.update(cx, |editor, cx| {
 825            editor.clear_inlay_hints(cx);
 826        });
 827        cx.emit(MessageEditorEvent::Send)
 828    }
 829
 830    fn chat(&mut self, _: &Chat, _: &mut Window, cx: &mut Context<Self>) {
 831        self.send(cx);
 832    }
 833
 834    fn cancel(&mut self, _: &editor::actions::Cancel, _: &mut Window, cx: &mut Context<Self>) {
 835        cx.emit(MessageEditorEvent::Cancel)
 836    }
 837
 838    fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
 839        if !self.prompt_capabilities.borrow().image {
 840            return;
 841        }
 842
 843        let images = cx
 844            .read_from_clipboard()
 845            .map(|item| {
 846                item.into_entries()
 847                    .filter_map(|entry| {
 848                        if let ClipboardEntry::Image(image) = entry {
 849                            Some(image)
 850                        } else {
 851                            None
 852                        }
 853                    })
 854                    .collect::<Vec<_>>()
 855            })
 856            .unwrap_or_default();
 857
 858        if images.is_empty() {
 859            return;
 860        }
 861        cx.stop_propagation();
 862
 863        let replacement_text = MentionUri::PastedImage.as_link().to_string();
 864        for image in images {
 865            let (excerpt_id, text_anchor, multibuffer_anchor) =
 866                self.editor.update(cx, |message_editor, cx| {
 867                    let snapshot = message_editor.snapshot(window, cx);
 868                    let (excerpt_id, _, buffer_snapshot) =
 869                        snapshot.buffer_snapshot().as_singleton().unwrap();
 870
 871                    let text_anchor = buffer_snapshot.anchor_before(buffer_snapshot.len());
 872                    let multibuffer_anchor = snapshot
 873                        .buffer_snapshot()
 874                        .anchor_in_excerpt(*excerpt_id, text_anchor);
 875                    message_editor.edit(
 876                        [(
 877                            multi_buffer::Anchor::max()..multi_buffer::Anchor::max(),
 878                            format!("{replacement_text} "),
 879                        )],
 880                        cx,
 881                    );
 882                    (*excerpt_id, text_anchor, multibuffer_anchor)
 883                });
 884
 885            let content_len = replacement_text.len();
 886            let Some(start_anchor) = multibuffer_anchor else {
 887                continue;
 888            };
 889            let end_anchor = self.editor.update(cx, |editor, cx| {
 890                let snapshot = editor.buffer().read(cx).snapshot(cx);
 891                snapshot.anchor_before(start_anchor.to_offset(&snapshot) + content_len)
 892            });
 893            let image = Arc::new(image);
 894            let Some((crease_id, tx)) = insert_crease_for_mention(
 895                excerpt_id,
 896                text_anchor,
 897                content_len,
 898                MentionUri::PastedImage.name().into(),
 899                IconName::Image.path().into(),
 900                Some(Task::ready(Ok(image.clone())).shared()),
 901                self.editor.clone(),
 902                window,
 903                cx,
 904            ) else {
 905                continue;
 906            };
 907            let task = cx
 908                .spawn_in(window, {
 909                    async move |_, cx| {
 910                        let format = image.format;
 911                        let image = cx
 912                            .update(|_, cx| LanguageModelImage::from_image(image, cx))
 913                            .map_err(|e| e.to_string())?
 914                            .await;
 915                        drop(tx);
 916                        if let Some(image) = image {
 917                            Ok(Mention::Image(MentionImage {
 918                                data: image.source,
 919                                format,
 920                            }))
 921                        } else {
 922                            Err("Failed to convert image".into())
 923                        }
 924                    }
 925                })
 926                .shared();
 927
 928            self.mention_set
 929                .mentions
 930                .insert(crease_id, (MentionUri::PastedImage, task.clone()));
 931
 932            cx.spawn_in(window, async move |this, cx| {
 933                if task.await.notify_async_err(cx).is_none() {
 934                    this.update(cx, |this, cx| {
 935                        this.editor.update(cx, |editor, cx| {
 936                            editor.edit([(start_anchor..end_anchor, "")], cx);
 937                        });
 938                        this.mention_set.mentions.remove(&crease_id);
 939                    })
 940                    .ok();
 941                }
 942            })
 943            .detach();
 944        }
 945    }
 946
 947    pub fn insert_dragged_files(
 948        &mut self,
 949        paths: Vec<project::ProjectPath>,
 950        added_worktrees: Vec<Entity<Worktree>>,
 951        window: &mut Window,
 952        cx: &mut Context<Self>,
 953    ) {
 954        let path_style = self.project.read(cx).path_style(cx);
 955        let buffer = self.editor.read(cx).buffer().clone();
 956        let Some(buffer) = buffer.read(cx).as_singleton() else {
 957            return;
 958        };
 959        let mut tasks = Vec::new();
 960        for path in paths {
 961            let Some(entry) = self.project.read(cx).entry_for_path(&path, cx) else {
 962                continue;
 963            };
 964            let Some(worktree) = self.project.read(cx).worktree_for_id(path.worktree_id, cx) else {
 965                continue;
 966            };
 967            let abs_path = worktree.read(cx).absolutize(&path.path);
 968            let (file_name, _) =
 969                crate::context_picker::file_context_picker::extract_file_name_and_directory(
 970                    &path.path,
 971                    worktree.read(cx).root_name(),
 972                    path_style,
 973                );
 974
 975            let uri = if entry.is_dir() {
 976                MentionUri::Directory { abs_path }
 977            } else {
 978                MentionUri::File { abs_path }
 979            };
 980
 981            let new_text = format!("{} ", uri.as_link());
 982            let content_len = new_text.len() - 1;
 983
 984            let anchor = buffer.update(cx, |buffer, _cx| buffer.anchor_before(buffer.len()));
 985
 986            self.editor.update(cx, |message_editor, cx| {
 987                message_editor.edit(
 988                    [(
 989                        multi_buffer::Anchor::max()..multi_buffer::Anchor::max(),
 990                        new_text,
 991                    )],
 992                    cx,
 993                );
 994            });
 995            tasks.push(self.confirm_mention_completion(
 996                file_name,
 997                anchor,
 998                content_len,
 999                uri,
1000                window,
1001                cx,
1002            ));
1003        }
1004        cx.spawn(async move |_, _| {
1005            join_all(tasks).await;
1006            drop(added_worktrees);
1007        })
1008        .detach();
1009    }
1010
1011    pub fn insert_selections(&mut self, window: &mut Window, cx: &mut Context<Self>) {
1012        let editor = self.editor.read(cx);
1013        let editor_buffer = editor.buffer().read(cx);
1014        let Some(buffer) = editor_buffer.as_singleton() else {
1015            return;
1016        };
1017        let cursor_anchor = editor.selections.newest_anchor().head();
1018        let cursor_offset = cursor_anchor.to_offset(&editor_buffer.snapshot(cx));
1019        let anchor = buffer.update(cx, |buffer, _cx| {
1020            buffer.anchor_before(cursor_offset.min(buffer.len()))
1021        });
1022        let Some(workspace) = self.workspace.upgrade() else {
1023            return;
1024        };
1025        let Some(completion) = ContextPickerCompletionProvider::completion_for_action(
1026            ContextPickerAction::AddSelections,
1027            anchor..anchor,
1028            cx.weak_entity(),
1029            &workspace,
1030            cx,
1031        ) else {
1032            return;
1033        };
1034
1035        self.editor.update(cx, |message_editor, cx| {
1036            message_editor.edit([(cursor_anchor..cursor_anchor, completion.new_text)], cx);
1037        });
1038        if let Some(confirm) = completion.confirm {
1039            confirm(CompletionIntent::Complete, window, cx);
1040        }
1041    }
1042
1043    pub fn set_read_only(&mut self, read_only: bool, cx: &mut Context<Self>) {
1044        self.editor.update(cx, |message_editor, cx| {
1045            message_editor.set_read_only(read_only);
1046            cx.notify()
1047        })
1048    }
1049
1050    pub fn set_mode(&mut self, mode: EditorMode, cx: &mut Context<Self>) {
1051        self.editor.update(cx, |editor, cx| {
1052            editor.set_mode(mode);
1053            cx.notify()
1054        });
1055    }
1056
1057    pub fn set_message(
1058        &mut self,
1059        message: Vec<acp::ContentBlock>,
1060        window: &mut Window,
1061        cx: &mut Context<Self>,
1062    ) {
1063        self.clear(window, cx);
1064
1065        let mut text = String::new();
1066        let mut mentions = Vec::new();
1067
1068        for chunk in message {
1069            match chunk {
1070                acp::ContentBlock::Text(text_content) => {
1071                    text.push_str(&text_content.text);
1072                }
1073                acp::ContentBlock::Resource(acp::EmbeddedResource {
1074                    resource: acp::EmbeddedResourceResource::TextResourceContents(resource),
1075                    ..
1076                }) => {
1077                    let Some(mention_uri) = MentionUri::parse(&resource.uri).log_err() else {
1078                        continue;
1079                    };
1080                    let start = text.len();
1081                    write!(&mut text, "{}", mention_uri.as_link()).ok();
1082                    let end = text.len();
1083                    mentions.push((
1084                        start..end,
1085                        mention_uri,
1086                        Mention::Text {
1087                            content: resource.text,
1088                            tracked_buffers: Vec::new(),
1089                        },
1090                    ));
1091                }
1092                acp::ContentBlock::ResourceLink(resource) => {
1093                    if let Some(mention_uri) = MentionUri::parse(&resource.uri).log_err() {
1094                        let start = text.len();
1095                        write!(&mut text, "{}", mention_uri.as_link()).ok();
1096                        let end = text.len();
1097                        mentions.push((start..end, mention_uri, Mention::UriOnly));
1098                    }
1099                }
1100                acp::ContentBlock::Image(acp::ImageContent {
1101                    uri,
1102                    data,
1103                    mime_type,
1104                    annotations: _,
1105                    meta: _,
1106                }) => {
1107                    let mention_uri = if let Some(uri) = uri {
1108                        MentionUri::parse(&uri)
1109                    } else {
1110                        Ok(MentionUri::PastedImage)
1111                    };
1112                    let Some(mention_uri) = mention_uri.log_err() else {
1113                        continue;
1114                    };
1115                    let Some(format) = ImageFormat::from_mime_type(&mime_type) else {
1116                        log::error!("failed to parse MIME type for image: {mime_type:?}");
1117                        continue;
1118                    };
1119                    let start = text.len();
1120                    write!(&mut text, "{}", mention_uri.as_link()).ok();
1121                    let end = text.len();
1122                    mentions.push((
1123                        start..end,
1124                        mention_uri,
1125                        Mention::Image(MentionImage {
1126                            data: data.into(),
1127                            format,
1128                        }),
1129                    ));
1130                }
1131                acp::ContentBlock::Audio(_) | acp::ContentBlock::Resource(_) => {}
1132            }
1133        }
1134
1135        let snapshot = self.editor.update(cx, |editor, cx| {
1136            editor.set_text(text, window, cx);
1137            editor.buffer().read(cx).snapshot(cx)
1138        });
1139
1140        for (range, mention_uri, mention) in mentions {
1141            let anchor = snapshot.anchor_before(range.start);
1142            let Some((crease_id, tx)) = insert_crease_for_mention(
1143                anchor.excerpt_id,
1144                anchor.text_anchor,
1145                range.end - range.start,
1146                mention_uri.name().into(),
1147                mention_uri.icon_path(cx),
1148                None,
1149                self.editor.clone(),
1150                window,
1151                cx,
1152            ) else {
1153                continue;
1154            };
1155            drop(tx);
1156
1157            self.mention_set.mentions.insert(
1158                crease_id,
1159                (mention_uri.clone(), Task::ready(Ok(mention)).shared()),
1160            );
1161        }
1162        cx.notify();
1163    }
1164
1165    pub fn text(&self, cx: &App) -> String {
1166        self.editor.read(cx).text(cx)
1167    }
1168
1169    #[cfg(test)]
1170    pub fn set_text(&mut self, text: &str, window: &mut Window, cx: &mut Context<Self>) {
1171        self.editor.update(cx, |editor, cx| {
1172            editor.set_text(text, window, cx);
1173        });
1174    }
1175}
1176
1177fn full_mention_for_directory(
1178    project: &Entity<Project>,
1179    abs_path: &Path,
1180    cx: &mut App,
1181) -> Task<Result<Mention>> {
1182    fn collect_files_in_path(worktree: &Worktree, path: &RelPath) -> Vec<(Arc<RelPath>, String)> {
1183        let mut files = Vec::new();
1184
1185        for entry in worktree.child_entries(path) {
1186            if entry.is_dir() {
1187                files.extend(collect_files_in_path(worktree, &entry.path));
1188            } else if entry.is_file() {
1189                files.push((
1190                    entry.path.clone(),
1191                    worktree
1192                        .full_path(&entry.path)
1193                        .to_string_lossy()
1194                        .to_string(),
1195                ));
1196            }
1197        }
1198
1199        files
1200    }
1201
1202    let Some(project_path) = project
1203        .read(cx)
1204        .project_path_for_absolute_path(&abs_path, cx)
1205    else {
1206        return Task::ready(Err(anyhow!("project path not found")));
1207    };
1208    let Some(entry) = project.read(cx).entry_for_path(&project_path, cx) else {
1209        return Task::ready(Err(anyhow!("project entry not found")));
1210    };
1211    let directory_path = entry.path.clone();
1212    let worktree_id = project_path.worktree_id;
1213    let Some(worktree) = project.read(cx).worktree_for_id(worktree_id, cx) else {
1214        return Task::ready(Err(anyhow!("worktree not found")));
1215    };
1216    let project = project.clone();
1217    cx.spawn(async move |cx| {
1218        let file_paths = worktree.read_with(cx, |worktree, _cx| {
1219            collect_files_in_path(worktree, &directory_path)
1220        })?;
1221        let descendants_future = cx.update(|cx| {
1222            join_all(file_paths.into_iter().map(|(worktree_path, full_path)| {
1223                let rel_path = worktree_path
1224                    .strip_prefix(&directory_path)
1225                    .log_err()
1226                    .map_or_else(|| worktree_path.clone(), |rel_path| rel_path.into());
1227
1228                let open_task = project.update(cx, |project, cx| {
1229                    project.buffer_store().update(cx, |buffer_store, cx| {
1230                        let project_path = ProjectPath {
1231                            worktree_id,
1232                            path: worktree_path,
1233                        };
1234                        buffer_store.open_buffer(project_path, cx)
1235                    })
1236                });
1237
1238                cx.spawn(async move |cx| {
1239                    let buffer = open_task.await.log_err()?;
1240                    let buffer_content = outline::get_buffer_content_or_outline(
1241                        buffer.clone(),
1242                        Some(&full_path),
1243                        &cx,
1244                    )
1245                    .await
1246                    .ok()?;
1247
1248                    Some((rel_path, full_path, buffer_content.text, buffer))
1249                })
1250            }))
1251        })?;
1252
1253        let contents = cx
1254            .background_spawn(async move {
1255                let (contents, tracked_buffers) = descendants_future
1256                    .await
1257                    .into_iter()
1258                    .flatten()
1259                    .map(|(rel_path, full_path, rope, buffer)| {
1260                        ((rel_path, full_path, rope), buffer)
1261                    })
1262                    .unzip();
1263                Mention::Text {
1264                    content: render_directory_contents(contents),
1265                    tracked_buffers,
1266                }
1267            })
1268            .await;
1269        anyhow::Ok(contents)
1270    })
1271}
1272
1273fn render_directory_contents(entries: Vec<(Arc<RelPath>, String, String)>) -> String {
1274    let mut output = String::new();
1275    for (_relative_path, full_path, content) in entries {
1276        let fence = codeblock_fence_for_path(Some(&full_path), None);
1277        write!(output, "\n{fence}\n{content}\n```").unwrap();
1278    }
1279    output
1280}
1281
1282impl Focusable for MessageEditor {
1283    fn focus_handle(&self, cx: &App) -> FocusHandle {
1284        self.editor.focus_handle(cx)
1285    }
1286}
1287
1288impl Render for MessageEditor {
1289    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1290        div()
1291            .key_context("MessageEditor")
1292            .on_action(cx.listener(Self::chat))
1293            .on_action(cx.listener(Self::cancel))
1294            .capture_action(cx.listener(Self::paste))
1295            .flex_1()
1296            .child({
1297                let settings = ThemeSettings::get_global(cx);
1298
1299                let text_style = TextStyle {
1300                    color: cx.theme().colors().text,
1301                    font_family: settings.buffer_font.family.clone(),
1302                    font_fallbacks: settings.buffer_font.fallbacks.clone(),
1303                    font_features: settings.buffer_font.features.clone(),
1304                    font_size: settings.agent_buffer_font_size(cx).into(),
1305                    line_height: relative(settings.buffer_line_height.value()),
1306                    ..Default::default()
1307                };
1308
1309                EditorElement::new(
1310                    &self.editor,
1311                    EditorStyle {
1312                        background: cx.theme().colors().editor_background,
1313                        local_player: cx.theme().players().local(),
1314                        text: text_style,
1315                        syntax: cx.theme().syntax().clone(),
1316                        inlay_hints_style: editor::make_inlay_hints_style(cx),
1317                        ..Default::default()
1318                    },
1319                )
1320            })
1321    }
1322}
1323
1324pub(crate) fn insert_crease_for_mention(
1325    excerpt_id: ExcerptId,
1326    anchor: text::Anchor,
1327    content_len: usize,
1328    crease_label: SharedString,
1329    crease_icon: SharedString,
1330    // abs_path: Option<Arc<Path>>,
1331    image: Option<Shared<Task<Result<Arc<Image>, String>>>>,
1332    editor: Entity<Editor>,
1333    window: &mut Window,
1334    cx: &mut App,
1335) -> Option<(CreaseId, postage::barrier::Sender)> {
1336    let (tx, rx) = postage::barrier::channel();
1337
1338    let crease_id = editor.update(cx, |editor, cx| {
1339        let snapshot = editor.buffer().read(cx).snapshot(cx);
1340
1341        let start = snapshot.anchor_in_excerpt(excerpt_id, anchor)?;
1342
1343        let start = start.bias_right(&snapshot);
1344        let end = snapshot.anchor_before(start.to_offset(&snapshot) + content_len);
1345
1346        let placeholder = FoldPlaceholder {
1347            render: render_mention_fold_button(
1348                crease_label,
1349                crease_icon,
1350                start..end,
1351                rx,
1352                image,
1353                cx.weak_entity(),
1354                cx,
1355            ),
1356            merge_adjacent: false,
1357            ..Default::default()
1358        };
1359
1360        let crease = Crease::Inline {
1361            range: start..end,
1362            placeholder,
1363            render_toggle: None,
1364            render_trailer: None,
1365            metadata: None,
1366        };
1367
1368        let ids = editor.insert_creases(vec![crease.clone()], cx);
1369        editor.fold_creases(vec![crease], false, window, cx);
1370
1371        Some(ids[0])
1372    })?;
1373
1374    Some((crease_id, tx))
1375}
1376
1377fn render_mention_fold_button(
1378    label: SharedString,
1379    icon: SharedString,
1380    range: Range<Anchor>,
1381    mut loading_finished: postage::barrier::Receiver,
1382    image_task: Option<Shared<Task<Result<Arc<Image>, String>>>>,
1383    editor: WeakEntity<Editor>,
1384    cx: &mut App,
1385) -> Arc<dyn Send + Sync + Fn(FoldId, Range<Anchor>, &mut App) -> AnyElement> {
1386    let loading = cx.new(|cx| {
1387        let loading = cx.spawn(async move |this, cx| {
1388            loading_finished.recv().await;
1389            this.update(cx, |this: &mut LoadingContext, cx| {
1390                this.loading = None;
1391                cx.notify();
1392            })
1393            .ok();
1394        });
1395        LoadingContext {
1396            id: cx.entity_id(),
1397            label,
1398            icon,
1399            range,
1400            editor,
1401            loading: Some(loading),
1402            image: image_task.clone(),
1403        }
1404    });
1405    Arc::new(move |_fold_id, _fold_range, _cx| loading.clone().into_any_element())
1406}
1407
1408struct LoadingContext {
1409    id: EntityId,
1410    label: SharedString,
1411    icon: SharedString,
1412    range: Range<Anchor>,
1413    editor: WeakEntity<Editor>,
1414    loading: Option<Task<()>>,
1415    image: Option<Shared<Task<Result<Arc<Image>, String>>>>,
1416}
1417
1418impl Render for LoadingContext {
1419    fn render(&mut self, _window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1420        let is_in_text_selection = self
1421            .editor
1422            .update(cx, |editor, cx| editor.is_range_selected(&self.range, cx))
1423            .unwrap_or_default();
1424        ButtonLike::new(("loading-context", self.id))
1425            .style(ButtonStyle::Filled)
1426            .selected_style(ButtonStyle::Tinted(TintColor::Accent))
1427            .toggle_state(is_in_text_selection)
1428            .when_some(self.image.clone(), |el, image_task| {
1429                el.hoverable_tooltip(move |_, cx| {
1430                    let image = image_task.peek().cloned().transpose().ok().flatten();
1431                    let image_task = image_task.clone();
1432                    cx.new::<ImageHover>(|cx| ImageHover {
1433                        image,
1434                        _task: cx.spawn(async move |this, cx| {
1435                            if let Ok(image) = image_task.clone().await {
1436                                this.update(cx, |this, cx| {
1437                                    if this.image.replace(image).is_none() {
1438                                        cx.notify();
1439                                    }
1440                                })
1441                                .ok();
1442                            }
1443                        }),
1444                    })
1445                    .into()
1446                })
1447            })
1448            .child(
1449                h_flex()
1450                    .gap_1()
1451                    .child(
1452                        Icon::from_path(self.icon.clone())
1453                            .size(IconSize::XSmall)
1454                            .color(Color::Muted),
1455                    )
1456                    .child(
1457                        Label::new(self.label.clone())
1458                            .size(LabelSize::Small)
1459                            .buffer_font(cx)
1460                            .single_line(),
1461                    )
1462                    .map(|el| {
1463                        if self.loading.is_some() {
1464                            el.with_animation(
1465                                "loading-context-crease",
1466                                Animation::new(Duration::from_secs(2))
1467                                    .repeat()
1468                                    .with_easing(pulsating_between(0.4, 0.8)),
1469                                |label, delta| label.opacity(delta),
1470                            )
1471                            .into_any()
1472                        } else {
1473                            el.into_any()
1474                        }
1475                    }),
1476            )
1477    }
1478}
1479
1480struct ImageHover {
1481    image: Option<Arc<Image>>,
1482    _task: Task<()>,
1483}
1484
1485impl Render for ImageHover {
1486    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
1487        if let Some(image) = self.image.clone() {
1488            gpui::img(image).max_w_96().max_h_96().into_any_element()
1489        } else {
1490            gpui::Empty.into_any_element()
1491        }
1492    }
1493}
1494
1495#[derive(Debug, Clone, Eq, PartialEq)]
1496pub enum Mention {
1497    Text {
1498        content: String,
1499        tracked_buffers: Vec<Entity<Buffer>>,
1500    },
1501    Image(MentionImage),
1502    UriOnly,
1503}
1504
1505#[derive(Clone, Debug, Eq, PartialEq)]
1506pub struct MentionImage {
1507    pub data: SharedString,
1508    pub format: ImageFormat,
1509}
1510
1511#[derive(Default)]
1512pub struct MentionSet {
1513    mentions: HashMap<CreaseId, (MentionUri, Shared<Task<Result<Mention, String>>>)>,
1514}
1515
1516impl MentionSet {
1517    fn contents(
1518        &self,
1519        prompt_capabilities: &acp::PromptCapabilities,
1520        full_mention_content: bool,
1521        project: Entity<Project>,
1522        cx: &mut App,
1523    ) -> Task<Result<HashMap<CreaseId, (MentionUri, Mention)>>> {
1524        if !prompt_capabilities.embedded_context {
1525            let mentions = self
1526                .mentions
1527                .iter()
1528                .map(|(crease_id, (uri, _))| (*crease_id, (uri.clone(), Mention::UriOnly)))
1529                .collect();
1530
1531            return Task::ready(Ok(mentions));
1532        }
1533
1534        let mentions = self.mentions.clone();
1535        cx.spawn(async move |cx| {
1536            let mut contents = HashMap::default();
1537            for (crease_id, (mention_uri, task)) in mentions {
1538                let content = if full_mention_content
1539                    && let MentionUri::Directory { abs_path } = &mention_uri
1540                {
1541                    cx.update(|cx| full_mention_for_directory(&project, abs_path, cx))?
1542                        .await?
1543                } else {
1544                    task.await.map_err(|e| anyhow!("{e}"))?
1545                };
1546
1547                contents.insert(crease_id, (mention_uri, content));
1548            }
1549            Ok(contents)
1550        })
1551    }
1552
1553    fn remove_invalid(&mut self, snapshot: EditorSnapshot) {
1554        for (crease_id, crease) in snapshot.crease_snapshot.creases() {
1555            if !crease.range().start.is_valid(&snapshot.buffer_snapshot()) {
1556                self.mentions.remove(&crease_id);
1557            }
1558        }
1559    }
1560}
1561
1562pub struct MessageEditorAddon {}
1563
1564impl MessageEditorAddon {
1565    pub fn new() -> Self {
1566        Self {}
1567    }
1568}
1569
1570impl Addon for MessageEditorAddon {
1571    fn to_any(&self) -> &dyn std::any::Any {
1572        self
1573    }
1574
1575    fn to_any_mut(&mut self) -> Option<&mut dyn std::any::Any> {
1576        Some(self)
1577    }
1578
1579    fn extend_key_context(&self, key_context: &mut KeyContext, cx: &App) {
1580        let settings = agent_settings::AgentSettings::get_global(cx);
1581        if settings.use_modifier_to_send {
1582            key_context.add("use_modifier_to_send");
1583        }
1584    }
1585}
1586
1587#[cfg(test)]
1588mod tests {
1589    use std::{cell::RefCell, ops::Range, path::Path, rc::Rc, sync::Arc};
1590
1591    use acp_thread::MentionUri;
1592    use agent::{HistoryStore, outline};
1593    use agent_client_protocol as acp;
1594    use assistant_text_thread::TextThreadStore;
1595    use editor::{AnchorRangeExt as _, Editor, EditorMode};
1596    use fs::FakeFs;
1597    use futures::StreamExt as _;
1598    use gpui::{
1599        AppContext, Entity, EventEmitter, FocusHandle, Focusable, TestAppContext, VisualTestContext,
1600    };
1601    use lsp::{CompletionContext, CompletionTriggerKind};
1602    use project::{CompletionIntent, Project, ProjectPath};
1603    use serde_json::json;
1604    use text::Point;
1605    use ui::{App, Context, IntoElement, Render, SharedString, Window};
1606    use util::{path, paths::PathStyle, rel_path::rel_path};
1607    use workspace::{AppState, Item, Workspace};
1608
1609    use crate::acp::{
1610        message_editor::{Mention, MessageEditor},
1611        thread_view::tests::init_test,
1612    };
1613
1614    #[gpui::test]
1615    async fn test_at_mention_removal(cx: &mut TestAppContext) {
1616        init_test(cx);
1617
1618        let fs = FakeFs::new(cx.executor());
1619        fs.insert_tree("/project", json!({"file": ""})).await;
1620        let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
1621
1622        let (workspace, cx) =
1623            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
1624
1625        let text_thread_store = cx.new(|cx| TextThreadStore::fake(project.clone(), cx));
1626        let history_store = cx.new(|cx| HistoryStore::new(text_thread_store, cx));
1627
1628        let message_editor = cx.update(|window, cx| {
1629            cx.new(|cx| {
1630                MessageEditor::new(
1631                    workspace.downgrade(),
1632                    project.clone(),
1633                    history_store.clone(),
1634                    None,
1635                    Default::default(),
1636                    Default::default(),
1637                    "Test Agent".into(),
1638                    "Test",
1639                    EditorMode::AutoHeight {
1640                        min_lines: 1,
1641                        max_lines: None,
1642                    },
1643                    window,
1644                    cx,
1645                )
1646            })
1647        });
1648        let editor = message_editor.update(cx, |message_editor, _| message_editor.editor.clone());
1649
1650        cx.run_until_parked();
1651
1652        let excerpt_id = editor.update(cx, |editor, cx| {
1653            editor
1654                .buffer()
1655                .read(cx)
1656                .excerpt_ids()
1657                .into_iter()
1658                .next()
1659                .unwrap()
1660        });
1661        let completions = editor.update_in(cx, |editor, window, cx| {
1662            editor.set_text("Hello @file ", window, cx);
1663            let buffer = editor.buffer().read(cx).as_singleton().unwrap();
1664            let completion_provider = editor.completion_provider().unwrap();
1665            completion_provider.completions(
1666                excerpt_id,
1667                &buffer,
1668                text::Anchor::MAX,
1669                CompletionContext {
1670                    trigger_kind: CompletionTriggerKind::TRIGGER_CHARACTER,
1671                    trigger_character: Some("@".into()),
1672                },
1673                window,
1674                cx,
1675            )
1676        });
1677        let [_, completion]: [_; 2] = completions
1678            .await
1679            .unwrap()
1680            .into_iter()
1681            .flat_map(|response| response.completions)
1682            .collect::<Vec<_>>()
1683            .try_into()
1684            .unwrap();
1685
1686        editor.update_in(cx, |editor, window, cx| {
1687            let snapshot = editor.buffer().read(cx).snapshot(cx);
1688            let range = snapshot
1689                .anchor_range_in_excerpt(excerpt_id, completion.replace_range)
1690                .unwrap();
1691            editor.edit([(range, completion.new_text)], cx);
1692            (completion.confirm.unwrap())(CompletionIntent::Complete, window, cx);
1693        });
1694
1695        cx.run_until_parked();
1696
1697        // Backspace over the inserted crease (and the following space).
1698        editor.update_in(cx, |editor, window, cx| {
1699            editor.backspace(&Default::default(), window, cx);
1700            editor.backspace(&Default::default(), window, cx);
1701        });
1702
1703        let (content, _) = message_editor
1704            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1705            .await
1706            .unwrap();
1707
1708        // We don't send a resource link for the deleted crease.
1709        pretty_assertions::assert_matches!(content.as_slice(), [acp::ContentBlock::Text { .. }]);
1710    }
1711
1712    #[gpui::test]
1713    async fn test_slash_command_validation(cx: &mut gpui::TestAppContext) {
1714        init_test(cx);
1715        let fs = FakeFs::new(cx.executor());
1716        fs.insert_tree(
1717            "/test",
1718            json!({
1719                ".zed": {
1720                    "tasks.json": r#"[{"label": "test", "command": "echo"}]"#
1721                },
1722                "src": {
1723                    "main.rs": "fn main() {}",
1724                },
1725            }),
1726        )
1727        .await;
1728
1729        let project = Project::test(fs.clone(), ["/test".as_ref()], cx).await;
1730        let text_thread_store = cx.new(|cx| TextThreadStore::fake(project.clone(), cx));
1731        let history_store = cx.new(|cx| HistoryStore::new(text_thread_store, cx));
1732        let prompt_capabilities = Rc::new(RefCell::new(acp::PromptCapabilities::default()));
1733        // Start with no available commands - simulating Claude which doesn't support slash commands
1734        let available_commands = Rc::new(RefCell::new(vec![]));
1735
1736        let (workspace, cx) =
1737            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
1738        let workspace_handle = workspace.downgrade();
1739        let message_editor = workspace.update_in(cx, |_, window, cx| {
1740            cx.new(|cx| {
1741                MessageEditor::new(
1742                    workspace_handle.clone(),
1743                    project.clone(),
1744                    history_store.clone(),
1745                    None,
1746                    prompt_capabilities.clone(),
1747                    available_commands.clone(),
1748                    "Claude Code".into(),
1749                    "Test",
1750                    EditorMode::AutoHeight {
1751                        min_lines: 1,
1752                        max_lines: None,
1753                    },
1754                    window,
1755                    cx,
1756                )
1757            })
1758        });
1759        let editor = message_editor.update(cx, |message_editor, _| message_editor.editor.clone());
1760
1761        // Test that slash commands fail when no available_commands are set (empty list means no commands supported)
1762        editor.update_in(cx, |editor, window, cx| {
1763            editor.set_text("/file test.txt", window, cx);
1764        });
1765
1766        let contents_result = message_editor
1767            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1768            .await;
1769
1770        // Should fail because available_commands is empty (no commands supported)
1771        assert!(contents_result.is_err());
1772        let error_message = contents_result.unwrap_err().to_string();
1773        assert!(error_message.contains("not supported by Claude Code"));
1774        assert!(error_message.contains("Available commands: none"));
1775
1776        // Now simulate Claude providing its list of available commands (which doesn't include file)
1777        available_commands.replace(vec![acp::AvailableCommand {
1778            name: "help".to_string(),
1779            description: "Get help".to_string(),
1780            input: None,
1781            meta: None,
1782        }]);
1783
1784        // Test that unsupported slash commands trigger an error when we have a list of available commands
1785        editor.update_in(cx, |editor, window, cx| {
1786            editor.set_text("/file test.txt", window, cx);
1787        });
1788
1789        let contents_result = message_editor
1790            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1791            .await;
1792
1793        assert!(contents_result.is_err());
1794        let error_message = contents_result.unwrap_err().to_string();
1795        assert!(error_message.contains("not supported by Claude Code"));
1796        assert!(error_message.contains("/file"));
1797        assert!(error_message.contains("Available commands: /help"));
1798
1799        // Test that supported commands work fine
1800        editor.update_in(cx, |editor, window, cx| {
1801            editor.set_text("/help", window, cx);
1802        });
1803
1804        let contents_result = message_editor
1805            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1806            .await;
1807
1808        // Should succeed because /help is in available_commands
1809        assert!(contents_result.is_ok());
1810
1811        // Test that regular text works fine
1812        editor.update_in(cx, |editor, window, cx| {
1813            editor.set_text("Hello Claude!", window, cx);
1814        });
1815
1816        let (content, _) = message_editor
1817            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1818            .await
1819            .unwrap();
1820
1821        assert_eq!(content.len(), 1);
1822        if let acp::ContentBlock::Text(text) = &content[0] {
1823            assert_eq!(text.text, "Hello Claude!");
1824        } else {
1825            panic!("Expected ContentBlock::Text");
1826        }
1827
1828        // Test that @ mentions still work
1829        editor.update_in(cx, |editor, window, cx| {
1830            editor.set_text("Check this @", window, cx);
1831        });
1832
1833        // The @ mention functionality should not be affected
1834        let (content, _) = message_editor
1835            .update(cx, |message_editor, cx| message_editor.contents(false, cx))
1836            .await
1837            .unwrap();
1838
1839        assert_eq!(content.len(), 1);
1840        if let acp::ContentBlock::Text(text) = &content[0] {
1841            assert_eq!(text.text, "Check this @");
1842        } else {
1843            panic!("Expected ContentBlock::Text");
1844        }
1845    }
1846
1847    struct MessageEditorItem(Entity<MessageEditor>);
1848
1849    impl Item for MessageEditorItem {
1850        type Event = ();
1851
1852        fn include_in_nav_history() -> bool {
1853            false
1854        }
1855
1856        fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
1857            "Test".into()
1858        }
1859    }
1860
1861    impl EventEmitter<()> for MessageEditorItem {}
1862
1863    impl Focusable for MessageEditorItem {
1864        fn focus_handle(&self, cx: &App) -> FocusHandle {
1865            self.0.read(cx).focus_handle(cx)
1866        }
1867    }
1868
1869    impl Render for MessageEditorItem {
1870        fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
1871            self.0.clone().into_any_element()
1872        }
1873    }
1874
1875    #[gpui::test]
1876    async fn test_completion_provider_commands(cx: &mut TestAppContext) {
1877        init_test(cx);
1878
1879        let app_state = cx.update(AppState::test);
1880
1881        cx.update(|cx| {
1882            language::init(cx);
1883            editor::init(cx);
1884            workspace::init(app_state.clone(), cx);
1885            Project::init_settings(cx);
1886        });
1887
1888        let project = Project::test(app_state.fs.clone(), [path!("/dir").as_ref()], cx).await;
1889        let window = cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
1890        let workspace = window.root(cx).unwrap();
1891
1892        let mut cx = VisualTestContext::from_window(*window, cx);
1893
1894        let text_thread_store = cx.new(|cx| TextThreadStore::fake(project.clone(), cx));
1895        let history_store = cx.new(|cx| HistoryStore::new(text_thread_store, cx));
1896        let prompt_capabilities = Rc::new(RefCell::new(acp::PromptCapabilities::default()));
1897        let available_commands = Rc::new(RefCell::new(vec![
1898            acp::AvailableCommand {
1899                name: "quick-math".to_string(),
1900                description: "2 + 2 = 4 - 1 = 3".to_string(),
1901                input: None,
1902                meta: None,
1903            },
1904            acp::AvailableCommand {
1905                name: "say-hello".to_string(),
1906                description: "Say hello to whoever you want".to_string(),
1907                input: Some(acp::AvailableCommandInput::Unstructured {
1908                    hint: "<name>".to_string(),
1909                }),
1910                meta: None,
1911            },
1912        ]));
1913
1914        let editor = workspace.update_in(&mut cx, |workspace, window, cx| {
1915            let workspace_handle = cx.weak_entity();
1916            let message_editor = cx.new(|cx| {
1917                MessageEditor::new(
1918                    workspace_handle,
1919                    project.clone(),
1920                    history_store.clone(),
1921                    None,
1922                    prompt_capabilities.clone(),
1923                    available_commands.clone(),
1924                    "Test Agent".into(),
1925                    "Test",
1926                    EditorMode::AutoHeight {
1927                        max_lines: None,
1928                        min_lines: 1,
1929                    },
1930                    window,
1931                    cx,
1932                )
1933            });
1934            workspace.active_pane().update(cx, |pane, cx| {
1935                pane.add_item(
1936                    Box::new(cx.new(|_| MessageEditorItem(message_editor.clone()))),
1937                    true,
1938                    true,
1939                    None,
1940                    window,
1941                    cx,
1942                );
1943            });
1944            message_editor.read(cx).focus_handle(cx).focus(window);
1945            message_editor.read(cx).editor().clone()
1946        });
1947
1948        cx.simulate_input("/");
1949
1950        editor.update_in(&mut cx, |editor, window, cx| {
1951            assert_eq!(editor.text(cx), "/");
1952            assert!(editor.has_visible_completions_menu());
1953
1954            assert_eq!(
1955                current_completion_labels_with_documentation(editor),
1956                &[
1957                    ("quick-math".into(), "2 + 2 = 4 - 1 = 3".into()),
1958                    ("say-hello".into(), "Say hello to whoever you want".into())
1959                ]
1960            );
1961            editor.set_text("", window, cx);
1962        });
1963
1964        cx.simulate_input("/qui");
1965
1966        editor.update_in(&mut cx, |editor, window, cx| {
1967            assert_eq!(editor.text(cx), "/qui");
1968            assert!(editor.has_visible_completions_menu());
1969
1970            assert_eq!(
1971                current_completion_labels_with_documentation(editor),
1972                &[("quick-math".into(), "2 + 2 = 4 - 1 = 3".into())]
1973            );
1974            editor.set_text("", window, cx);
1975        });
1976
1977        editor.update_in(&mut cx, |editor, window, cx| {
1978            assert!(editor.has_visible_completions_menu());
1979            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
1980        });
1981
1982        cx.run_until_parked();
1983
1984        editor.update_in(&mut cx, |editor, window, cx| {
1985            assert_eq!(editor.display_text(cx), "/quick-math ");
1986            assert!(!editor.has_visible_completions_menu());
1987            editor.set_text("", window, cx);
1988        });
1989
1990        cx.simulate_input("/say");
1991
1992        editor.update_in(&mut cx, |editor, _window, cx| {
1993            assert_eq!(editor.display_text(cx), "/say");
1994            assert!(editor.has_visible_completions_menu());
1995
1996            assert_eq!(
1997                current_completion_labels_with_documentation(editor),
1998                &[("say-hello".into(), "Say hello to whoever you want".into())]
1999            );
2000        });
2001
2002        editor.update_in(&mut cx, |editor, window, cx| {
2003            assert!(editor.has_visible_completions_menu());
2004            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2005        });
2006
2007        cx.run_until_parked();
2008
2009        editor.update_in(&mut cx, |editor, _window, cx| {
2010            assert_eq!(editor.text(cx), "/say-hello ");
2011            assert_eq!(editor.display_text(cx), "/say-hello <name>");
2012            assert!(!editor.has_visible_completions_menu());
2013        });
2014
2015        cx.simulate_input("GPT5");
2016
2017        cx.run_until_parked();
2018
2019        editor.update_in(&mut cx, |editor, window, cx| {
2020            assert_eq!(editor.text(cx), "/say-hello GPT5");
2021            assert_eq!(editor.display_text(cx), "/say-hello GPT5");
2022            assert!(!editor.has_visible_completions_menu());
2023
2024            // Delete argument
2025            for _ in 0..5 {
2026                editor.backspace(&editor::actions::Backspace, window, cx);
2027            }
2028        });
2029
2030        cx.run_until_parked();
2031
2032        editor.update_in(&mut cx, |editor, window, cx| {
2033            assert_eq!(editor.text(cx), "/say-hello");
2034            // Hint is visible because argument was deleted
2035            assert_eq!(editor.display_text(cx), "/say-hello <name>");
2036
2037            // Delete last command letter
2038            editor.backspace(&editor::actions::Backspace, window, cx);
2039        });
2040
2041        cx.run_until_parked();
2042
2043        editor.update_in(&mut cx, |editor, _window, cx| {
2044            // Hint goes away once command no longer matches an available one
2045            assert_eq!(editor.text(cx), "/say-hell");
2046            assert_eq!(editor.display_text(cx), "/say-hell");
2047            assert!(!editor.has_visible_completions_menu());
2048        });
2049    }
2050
2051    #[gpui::test]
2052    async fn test_context_completion_provider_mentions(cx: &mut TestAppContext) {
2053        init_test(cx);
2054
2055        let app_state = cx.update(AppState::test);
2056
2057        cx.update(|cx| {
2058            language::init(cx);
2059            editor::init(cx);
2060            workspace::init(app_state.clone(), cx);
2061            Project::init_settings(cx);
2062        });
2063
2064        app_state
2065            .fs
2066            .as_fake()
2067            .insert_tree(
2068                path!("/dir"),
2069                json!({
2070                    "editor": "",
2071                    "a": {
2072                        "one.txt": "1",
2073                        "two.txt": "2",
2074                        "three.txt": "3",
2075                        "four.txt": "4"
2076                    },
2077                    "b": {
2078                        "five.txt": "5",
2079                        "six.txt": "6",
2080                        "seven.txt": "7",
2081                        "eight.txt": "8",
2082                    },
2083                    "x.png": "",
2084                }),
2085            )
2086            .await;
2087
2088        let project = Project::test(app_state.fs.clone(), [path!("/dir").as_ref()], cx).await;
2089        let window = cx.add_window(|window, cx| Workspace::test_new(project.clone(), window, cx));
2090        let workspace = window.root(cx).unwrap();
2091
2092        let worktree = project.update(cx, |project, cx| {
2093            let mut worktrees = project.worktrees(cx).collect::<Vec<_>>();
2094            assert_eq!(worktrees.len(), 1);
2095            worktrees.pop().unwrap()
2096        });
2097        let worktree_id = worktree.read_with(cx, |worktree, _| worktree.id());
2098
2099        let mut cx = VisualTestContext::from_window(*window, cx);
2100
2101        let paths = vec![
2102            rel_path("a/one.txt"),
2103            rel_path("a/two.txt"),
2104            rel_path("a/three.txt"),
2105            rel_path("a/four.txt"),
2106            rel_path("b/five.txt"),
2107            rel_path("b/six.txt"),
2108            rel_path("b/seven.txt"),
2109            rel_path("b/eight.txt"),
2110        ];
2111
2112        let slash = PathStyle::local().separator();
2113
2114        let mut opened_editors = Vec::new();
2115        for path in paths {
2116            let buffer = workspace
2117                .update_in(&mut cx, |workspace, window, cx| {
2118                    workspace.open_path(
2119                        ProjectPath {
2120                            worktree_id,
2121                            path: path.into(),
2122                        },
2123                        None,
2124                        false,
2125                        window,
2126                        cx,
2127                    )
2128                })
2129                .await
2130                .unwrap();
2131            opened_editors.push(buffer);
2132        }
2133
2134        let text_thread_store = cx.new(|cx| TextThreadStore::fake(project.clone(), cx));
2135        let history_store = cx.new(|cx| HistoryStore::new(text_thread_store, cx));
2136        let prompt_capabilities = Rc::new(RefCell::new(acp::PromptCapabilities::default()));
2137
2138        let (message_editor, editor) = workspace.update_in(&mut cx, |workspace, window, cx| {
2139            let workspace_handle = cx.weak_entity();
2140            let message_editor = cx.new(|cx| {
2141                MessageEditor::new(
2142                    workspace_handle,
2143                    project.clone(),
2144                    history_store.clone(),
2145                    None,
2146                    prompt_capabilities.clone(),
2147                    Default::default(),
2148                    "Test Agent".into(),
2149                    "Test",
2150                    EditorMode::AutoHeight {
2151                        max_lines: None,
2152                        min_lines: 1,
2153                    },
2154                    window,
2155                    cx,
2156                )
2157            });
2158            workspace.active_pane().update(cx, |pane, cx| {
2159                pane.add_item(
2160                    Box::new(cx.new(|_| MessageEditorItem(message_editor.clone()))),
2161                    true,
2162                    true,
2163                    None,
2164                    window,
2165                    cx,
2166                );
2167            });
2168            message_editor.read(cx).focus_handle(cx).focus(window);
2169            let editor = message_editor.read(cx).editor().clone();
2170            (message_editor, editor)
2171        });
2172
2173        cx.simulate_input("Lorem @");
2174
2175        editor.update_in(&mut cx, |editor, window, cx| {
2176            assert_eq!(editor.text(cx), "Lorem @");
2177            assert!(editor.has_visible_completions_menu());
2178
2179            assert_eq!(
2180                current_completion_labels(editor),
2181                &[
2182                    format!("eight.txt dir{slash}b{slash}"),
2183                    format!("seven.txt dir{slash}b{slash}"),
2184                    format!("six.txt dir{slash}b{slash}"),
2185                    format!("five.txt dir{slash}b{slash}"),
2186                ]
2187            );
2188            editor.set_text("", window, cx);
2189        });
2190
2191        prompt_capabilities.replace(acp::PromptCapabilities {
2192            image: true,
2193            audio: true,
2194            embedded_context: true,
2195            meta: None,
2196        });
2197
2198        cx.simulate_input("Lorem ");
2199
2200        editor.update(&mut cx, |editor, cx| {
2201            assert_eq!(editor.text(cx), "Lorem ");
2202            assert!(!editor.has_visible_completions_menu());
2203        });
2204
2205        cx.simulate_input("@");
2206
2207        editor.update(&mut cx, |editor, cx| {
2208            assert_eq!(editor.text(cx), "Lorem @");
2209            assert!(editor.has_visible_completions_menu());
2210            assert_eq!(
2211                current_completion_labels(editor),
2212                &[
2213                    format!("eight.txt dir{slash}b{slash}"),
2214                    format!("seven.txt dir{slash}b{slash}"),
2215                    format!("six.txt dir{slash}b{slash}"),
2216                    format!("five.txt dir{slash}b{slash}"),
2217                    "Files & Directories".into(),
2218                    "Symbols".into(),
2219                    "Threads".into(),
2220                    "Fetch".into()
2221                ]
2222            );
2223        });
2224
2225        // Select and confirm "File"
2226        editor.update_in(&mut cx, |editor, window, cx| {
2227            assert!(editor.has_visible_completions_menu());
2228            editor.context_menu_next(&editor::actions::ContextMenuNext, window, cx);
2229            editor.context_menu_next(&editor::actions::ContextMenuNext, window, cx);
2230            editor.context_menu_next(&editor::actions::ContextMenuNext, window, cx);
2231            editor.context_menu_next(&editor::actions::ContextMenuNext, window, cx);
2232            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2233        });
2234
2235        cx.run_until_parked();
2236
2237        editor.update(&mut cx, |editor, cx| {
2238            assert_eq!(editor.text(cx), "Lorem @file ");
2239            assert!(editor.has_visible_completions_menu());
2240        });
2241
2242        cx.simulate_input("one");
2243
2244        editor.update(&mut cx, |editor, cx| {
2245            assert_eq!(editor.text(cx), "Lorem @file one");
2246            assert!(editor.has_visible_completions_menu());
2247            assert_eq!(
2248                current_completion_labels(editor),
2249                vec![format!("one.txt dir{slash}a{slash}")]
2250            );
2251        });
2252
2253        editor.update_in(&mut cx, |editor, window, cx| {
2254            assert!(editor.has_visible_completions_menu());
2255            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2256        });
2257
2258        let url_one = MentionUri::File {
2259            abs_path: path!("/dir/a/one.txt").into(),
2260        }
2261        .to_uri()
2262        .to_string();
2263        editor.update(&mut cx, |editor, cx| {
2264            let text = editor.text(cx);
2265            assert_eq!(text, format!("Lorem [@one.txt]({url_one}) "));
2266            assert!(!editor.has_visible_completions_menu());
2267            assert_eq!(fold_ranges(editor, cx).len(), 1);
2268        });
2269
2270        let all_prompt_capabilities = acp::PromptCapabilities {
2271            image: true,
2272            audio: true,
2273            embedded_context: true,
2274            meta: None,
2275        };
2276
2277        let contents = message_editor
2278            .update(&mut cx, |message_editor, cx| {
2279                message_editor.mention_set().contents(
2280                    &all_prompt_capabilities,
2281                    false,
2282                    project.clone(),
2283                    cx,
2284                )
2285            })
2286            .await
2287            .unwrap()
2288            .into_values()
2289            .collect::<Vec<_>>();
2290
2291        {
2292            let [(uri, Mention::Text { content, .. })] = contents.as_slice() else {
2293                panic!("Unexpected mentions");
2294            };
2295            pretty_assertions::assert_eq!(content, "1");
2296            pretty_assertions::assert_eq!(uri, &url_one.parse::<MentionUri>().unwrap());
2297        }
2298
2299        let contents = message_editor
2300            .update(&mut cx, |message_editor, cx| {
2301                message_editor.mention_set().contents(
2302                    &acp::PromptCapabilities::default(),
2303                    false,
2304                    project.clone(),
2305                    cx,
2306                )
2307            })
2308            .await
2309            .unwrap()
2310            .into_values()
2311            .collect::<Vec<_>>();
2312
2313        {
2314            let [(uri, Mention::UriOnly)] = contents.as_slice() else {
2315                panic!("Unexpected mentions");
2316            };
2317            pretty_assertions::assert_eq!(uri, &url_one.parse::<MentionUri>().unwrap());
2318        }
2319
2320        cx.simulate_input(" ");
2321
2322        editor.update(&mut cx, |editor, cx| {
2323            let text = editor.text(cx);
2324            assert_eq!(text, format!("Lorem [@one.txt]({url_one})  "));
2325            assert!(!editor.has_visible_completions_menu());
2326            assert_eq!(fold_ranges(editor, cx).len(), 1);
2327        });
2328
2329        cx.simulate_input("Ipsum ");
2330
2331        editor.update(&mut cx, |editor, cx| {
2332            let text = editor.text(cx);
2333            assert_eq!(text, format!("Lorem [@one.txt]({url_one})  Ipsum "),);
2334            assert!(!editor.has_visible_completions_menu());
2335            assert_eq!(fold_ranges(editor, cx).len(), 1);
2336        });
2337
2338        cx.simulate_input("@file ");
2339
2340        editor.update(&mut cx, |editor, cx| {
2341            let text = editor.text(cx);
2342            assert_eq!(text, format!("Lorem [@one.txt]({url_one})  Ipsum @file "),);
2343            assert!(editor.has_visible_completions_menu());
2344            assert_eq!(fold_ranges(editor, cx).len(), 1);
2345        });
2346
2347        editor.update_in(&mut cx, |editor, window, cx| {
2348            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2349        });
2350
2351        cx.run_until_parked();
2352
2353        let contents = message_editor
2354            .update(&mut cx, |message_editor, cx| {
2355                message_editor.mention_set().contents(
2356                    &all_prompt_capabilities,
2357                    false,
2358                    project.clone(),
2359                    cx,
2360                )
2361            })
2362            .await
2363            .unwrap()
2364            .into_values()
2365            .collect::<Vec<_>>();
2366
2367        let url_eight = MentionUri::File {
2368            abs_path: path!("/dir/b/eight.txt").into(),
2369        }
2370        .to_uri()
2371        .to_string();
2372
2373        {
2374            let [_, (uri, Mention::Text { content, .. })] = contents.as_slice() else {
2375                panic!("Unexpected mentions");
2376            };
2377            pretty_assertions::assert_eq!(content, "8");
2378            pretty_assertions::assert_eq!(uri, &url_eight.parse::<MentionUri>().unwrap());
2379        }
2380
2381        editor.update(&mut cx, |editor, cx| {
2382            assert_eq!(
2383                editor.text(cx),
2384                format!("Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) ")
2385            );
2386            assert!(!editor.has_visible_completions_menu());
2387            assert_eq!(fold_ranges(editor, cx).len(), 2);
2388        });
2389
2390        let plain_text_language = Arc::new(language::Language::new(
2391            language::LanguageConfig {
2392                name: "Plain Text".into(),
2393                matcher: language::LanguageMatcher {
2394                    path_suffixes: vec!["txt".to_string()],
2395                    ..Default::default()
2396                },
2397                ..Default::default()
2398            },
2399            None,
2400        ));
2401
2402        // Register the language and fake LSP
2403        let language_registry = project.read_with(&cx, |project, _| project.languages().clone());
2404        language_registry.add(plain_text_language);
2405
2406        let mut fake_language_servers = language_registry.register_fake_lsp(
2407            "Plain Text",
2408            language::FakeLspAdapter {
2409                capabilities: lsp::ServerCapabilities {
2410                    workspace_symbol_provider: Some(lsp::OneOf::Left(true)),
2411                    ..Default::default()
2412                },
2413                ..Default::default()
2414            },
2415        );
2416
2417        // Open the buffer to trigger LSP initialization
2418        let buffer = project
2419            .update(&mut cx, |project, cx| {
2420                project.open_local_buffer(path!("/dir/a/one.txt"), cx)
2421            })
2422            .await
2423            .unwrap();
2424
2425        // Register the buffer with language servers
2426        let _handle = project.update(&mut cx, |project, cx| {
2427            project.register_buffer_with_language_servers(&buffer, cx)
2428        });
2429
2430        cx.run_until_parked();
2431
2432        let fake_language_server = fake_language_servers.next().await.unwrap();
2433        fake_language_server.set_request_handler::<lsp::WorkspaceSymbolRequest, _, _>(
2434            move |_, _| async move {
2435                Ok(Some(lsp::WorkspaceSymbolResponse::Flat(vec![
2436                    #[allow(deprecated)]
2437                    lsp::SymbolInformation {
2438                        name: "MySymbol".into(),
2439                        location: lsp::Location {
2440                            uri: lsp::Uri::from_file_path(path!("/dir/a/one.txt")).unwrap(),
2441                            range: lsp::Range::new(
2442                                lsp::Position::new(0, 0),
2443                                lsp::Position::new(0, 1),
2444                            ),
2445                        },
2446                        kind: lsp::SymbolKind::CONSTANT,
2447                        tags: None,
2448                        container_name: None,
2449                        deprecated: None,
2450                    },
2451                ])))
2452            },
2453        );
2454
2455        cx.simulate_input("@symbol ");
2456
2457        editor.update(&mut cx, |editor, cx| {
2458            assert_eq!(
2459                editor.text(cx),
2460                format!("Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) @symbol ")
2461            );
2462            assert!(editor.has_visible_completions_menu());
2463            assert_eq!(current_completion_labels(editor), &["MySymbol"]);
2464        });
2465
2466        editor.update_in(&mut cx, |editor, window, cx| {
2467            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2468        });
2469
2470        let symbol = MentionUri::Symbol {
2471            abs_path: path!("/dir/a/one.txt").into(),
2472            name: "MySymbol".into(),
2473            line_range: 0..=0,
2474        };
2475
2476        let contents = message_editor
2477            .update(&mut cx, |message_editor, cx| {
2478                message_editor.mention_set().contents(
2479                    &all_prompt_capabilities,
2480                    false,
2481                    project.clone(),
2482                    cx,
2483                )
2484            })
2485            .await
2486            .unwrap()
2487            .into_values()
2488            .collect::<Vec<_>>();
2489
2490        {
2491            let [_, _, (uri, Mention::Text { content, .. })] = contents.as_slice() else {
2492                panic!("Unexpected mentions");
2493            };
2494            pretty_assertions::assert_eq!(content, "1");
2495            pretty_assertions::assert_eq!(uri, &symbol);
2496        }
2497
2498        cx.run_until_parked();
2499
2500        editor.read_with(&cx, |editor, cx| {
2501            assert_eq!(
2502                editor.text(cx),
2503                format!(
2504                    "Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) [@MySymbol]({}) ",
2505                    symbol.to_uri(),
2506                )
2507            );
2508        });
2509
2510        // Try to mention an "image" file that will fail to load
2511        cx.simulate_input("@file x.png");
2512
2513        editor.update(&mut cx, |editor, cx| {
2514            assert_eq!(
2515                editor.text(cx),
2516                format!("Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) [@MySymbol]({}) @file x.png", symbol.to_uri())
2517            );
2518            assert!(editor.has_visible_completions_menu());
2519            assert_eq!(current_completion_labels(editor), &[format!("x.png dir{slash}")]);
2520        });
2521
2522        editor.update_in(&mut cx, |editor, window, cx| {
2523            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2524        });
2525
2526        // Getting the message contents fails
2527        message_editor
2528            .update(&mut cx, |message_editor, cx| {
2529                message_editor.mention_set().contents(
2530                    &all_prompt_capabilities,
2531                    false,
2532                    project.clone(),
2533                    cx,
2534                )
2535            })
2536            .await
2537            .expect_err("Should fail to load x.png");
2538
2539        cx.run_until_parked();
2540
2541        // Mention was removed
2542        editor.read_with(&cx, |editor, cx| {
2543            assert_eq!(
2544                editor.text(cx),
2545                format!(
2546                    "Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) [@MySymbol]({}) ",
2547                    symbol.to_uri()
2548                )
2549            );
2550        });
2551
2552        // Once more
2553        cx.simulate_input("@file x.png");
2554
2555        editor.update(&mut cx, |editor, cx| {
2556                    assert_eq!(
2557                        editor.text(cx),
2558                        format!("Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) [@MySymbol]({}) @file x.png", symbol.to_uri())
2559                    );
2560                    assert!(editor.has_visible_completions_menu());
2561                    assert_eq!(current_completion_labels(editor), &[format!("x.png dir{slash}")]);
2562                });
2563
2564        editor.update_in(&mut cx, |editor, window, cx| {
2565            editor.confirm_completion(&editor::actions::ConfirmCompletion::default(), window, cx);
2566        });
2567
2568        // This time don't immediately get the contents, just let the confirmed completion settle
2569        cx.run_until_parked();
2570
2571        // Mention was removed
2572        editor.read_with(&cx, |editor, cx| {
2573            assert_eq!(
2574                editor.text(cx),
2575                format!(
2576                    "Lorem [@one.txt]({url_one})  Ipsum [@eight.txt]({url_eight}) [@MySymbol]({}) ",
2577                    symbol.to_uri()
2578                )
2579            );
2580        });
2581
2582        // Now getting the contents succeeds, because the invalid mention was removed
2583        let contents = message_editor
2584            .update(&mut cx, |message_editor, cx| {
2585                message_editor.mention_set().contents(
2586                    &all_prompt_capabilities,
2587                    false,
2588                    project.clone(),
2589                    cx,
2590                )
2591            })
2592            .await
2593            .unwrap();
2594        assert_eq!(contents.len(), 3);
2595    }
2596
2597    fn fold_ranges(editor: &Editor, cx: &mut App) -> Vec<Range<Point>> {
2598        let snapshot = editor.buffer().read(cx).snapshot(cx);
2599        editor.display_map.update(cx, |display_map, cx| {
2600            display_map
2601                .snapshot(cx)
2602                .folds_in_range(0..snapshot.len())
2603                .map(|fold| fold.range.to_point(&snapshot))
2604                .collect()
2605        })
2606    }
2607
2608    fn current_completion_labels(editor: &Editor) -> Vec<String> {
2609        let completions = editor.current_completions().expect("Missing completions");
2610        completions
2611            .into_iter()
2612            .map(|completion| completion.label.text)
2613            .collect::<Vec<_>>()
2614    }
2615
2616    fn current_completion_labels_with_documentation(editor: &Editor) -> Vec<(String, String)> {
2617        let completions = editor.current_completions().expect("Missing completions");
2618        completions
2619            .into_iter()
2620            .map(|completion| {
2621                (
2622                    completion.label.text,
2623                    completion
2624                        .documentation
2625                        .map(|d| d.text().to_string())
2626                        .unwrap_or_default(),
2627                )
2628            })
2629            .collect::<Vec<_>>()
2630    }
2631
2632    #[gpui::test]
2633    async fn test_large_file_mention_uses_outline(cx: &mut TestAppContext) {
2634        init_test(cx);
2635
2636        let fs = FakeFs::new(cx.executor());
2637
2638        // Create a large file that exceeds AUTO_OUTLINE_SIZE
2639        const LINE: &str = "fn example_function() { /* some code */ }\n";
2640        let large_content = LINE.repeat(2 * (outline::AUTO_OUTLINE_SIZE / LINE.len()));
2641        assert!(large_content.len() > outline::AUTO_OUTLINE_SIZE);
2642
2643        // Create a small file that doesn't exceed AUTO_OUTLINE_SIZE
2644        let small_content = "fn small_function() { /* small */ }\n";
2645        assert!(small_content.len() < outline::AUTO_OUTLINE_SIZE);
2646
2647        fs.insert_tree(
2648            "/project",
2649            json!({
2650                "large_file.rs": large_content.clone(),
2651                "small_file.rs": small_content,
2652            }),
2653        )
2654        .await;
2655
2656        let project = Project::test(fs, [Path::new(path!("/project"))], cx).await;
2657
2658        let (workspace, cx) =
2659            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
2660
2661        let text_thread_store = cx.new(|cx| TextThreadStore::fake(project.clone(), cx));
2662        let history_store = cx.new(|cx| HistoryStore::new(text_thread_store, cx));
2663
2664        let message_editor = cx.update(|window, cx| {
2665            cx.new(|cx| {
2666                let editor = MessageEditor::new(
2667                    workspace.downgrade(),
2668                    project.clone(),
2669                    history_store.clone(),
2670                    None,
2671                    Default::default(),
2672                    Default::default(),
2673                    "Test Agent".into(),
2674                    "Test",
2675                    EditorMode::AutoHeight {
2676                        min_lines: 1,
2677                        max_lines: None,
2678                    },
2679                    window,
2680                    cx,
2681                );
2682                // Enable embedded context so files are actually included
2683                editor.prompt_capabilities.replace(acp::PromptCapabilities {
2684                    embedded_context: true,
2685                    meta: None,
2686                    ..Default::default()
2687                });
2688                editor
2689            })
2690        });
2691
2692        // Test large file mention
2693        // Get the absolute path using the project's worktree
2694        let large_file_abs_path = project.read_with(cx, |project, cx| {
2695            let worktree = project.worktrees(cx).next().unwrap();
2696            let worktree_root = worktree.read(cx).abs_path();
2697            worktree_root.join("large_file.rs")
2698        });
2699        let large_file_task = message_editor.update(cx, |editor, cx| {
2700            editor.confirm_mention_for_file(large_file_abs_path, cx)
2701        });
2702
2703        let large_file_mention = large_file_task.await.unwrap();
2704        match large_file_mention {
2705            Mention::Text { content, .. } => {
2706                // Should contain outline header for large files
2707                assert!(content.contains("File outline for"));
2708                assert!(content.contains("file too large to show full content"));
2709                // Should not contain the full repeated content
2710                assert!(!content.contains(&LINE.repeat(100)));
2711            }
2712            _ => panic!("Expected Text mention for large file"),
2713        }
2714
2715        // Test small file mention
2716        // Get the absolute path using the project's worktree
2717        let small_file_abs_path = project.read_with(cx, |project, cx| {
2718            let worktree = project.worktrees(cx).next().unwrap();
2719            let worktree_root = worktree.read(cx).abs_path();
2720            worktree_root.join("small_file.rs")
2721        });
2722        let small_file_task = message_editor.update(cx, |editor, cx| {
2723            editor.confirm_mention_for_file(small_file_abs_path, cx)
2724        });
2725
2726        let small_file_mention = small_file_task.await.unwrap();
2727        match small_file_mention {
2728            Mention::Text { content, .. } => {
2729                // Should contain the actual content
2730                assert_eq!(content, small_content);
2731                // Should not contain outline header
2732                assert!(!content.contains("File outline for"));
2733            }
2734            _ => panic!("Expected Text mention for small file"),
2735        }
2736    }
2737}